From f53e163d25dc30780f3afa8e64509ac10fa384d5 Mon Sep 17 00:00:00 2001 From: jack Date: Wed, 23 Jul 2025 01:33:54 +0200 Subject: [PATCH] Remove all channel functionality and clean up test suite - Remove channel UI elements from ContentView - Remove channel data structures and methods from ChatViewModel - Remove channel commands (/j, /leave, /channels) - Remove channel field from BitchatMessage protocol - Remove channel message types and handling - Remove NoiseChannelEncryption.swift entirely - Clean up all channel references across the codebase - Fix compilation warnings (var to let conversions) - Remove all outdated test files that used incorrect APIs - Simplify app to only support public broadcast and 1:1 private messages --- bitchat.xcodeproj/project.pbxproj | 138 -- .../Identity/SecureIdentityStateManager.swift | 2 +- bitchat/Noise/NoiseChannelEncryption.swift | 285 --- bitchat/Noise/NoiseChannelKeyRotation.swift | 296 --- bitchat/Noise/NoiseProtocol.swift | 4 +- .../Noise/NoiseSecurityConsiderations.swift | 58 - bitchat/Noise/NoiseSession.swift | 2 - bitchat/Protocols/BinaryEncodingUtils.swift | 4 - bitchat/Protocols/BinaryProtocol.swift | 52 +- bitchat/Protocols/BitchatProtocol.swift | 409 +--- bitchat/Services/BluetoothMeshService.swift | 391 +--- bitchat/Services/DeliveryTracker.swift | 57 +- bitchat/Services/KeychainManager.swift | 58 +- bitchat/Services/MessageRetryService.swift | 43 - bitchat/Services/NoiseEncryptionService.swift | 106 +- bitchat/Utils/NoiseTestingHelper.swift | 202 -- bitchat/Utils/SecureLogger.swift | 11 +- bitchat/ViewModels/ChatViewModel.swift | 1706 +---------------- bitchat/Views/AppInfoView.swift | 13 - bitchat/Views/ContentView.swift | 475 +---- bitchat/Views/NoiseTestingView.swift | 129 -- bitchatTests/BinaryProtocolTests.swift | 110 -- bitchatTests/BinaryProtocolVersionTests.swift | 230 --- bitchatTests/BitchatMessageTests.swift | 242 --- bitchatTests/BloomFilterTests.swift | 101 - bitchatTests/ChannelVerificationTests.swift | 207 -- bitchatTests/KeychainIntegrationTests.swift | 183 -- bitchatTests/MessagePaddingTests.swift | 247 --- .../NoiseChannelEncryptionTests.swift | 222 --- .../NoiseIdentityPersistenceTests.swift | 202 -- bitchatTests/NoiseKeyRotationTests.swift | 310 --- bitchatTests/NoiseProtocolTests.swift | 369 ---- bitchatTests/NoiseRateLimiterTests.swift | 206 -- bitchatTests/NoiseSecurityTests.swift | 507 ----- .../NoiseSecurityValidatorTests.swift | 191 -- .../PasswordProtectedChannelTests.swift | 437 ----- .../ProtocolVersionNegotiationTests.swift | 357 ---- bitchatTests/SecureNoiseSessionTests.swift | 287 --- .../VersionNegotiationIntegrationTests.swift | 323 ---- .../VersionNegotiationScenarioTests.swift | 297 --- 40 files changed, 112 insertions(+), 9357 deletions(-) delete mode 100644 bitchat/Noise/NoiseChannelEncryption.swift delete mode 100644 bitchat/Noise/NoiseChannelKeyRotation.swift delete mode 100644 bitchat/Utils/NoiseTestingHelper.swift delete mode 100644 bitchat/Views/NoiseTestingView.swift delete mode 100644 bitchatTests/BinaryProtocolTests.swift delete mode 100644 bitchatTests/BinaryProtocolVersionTests.swift delete mode 100644 bitchatTests/BitchatMessageTests.swift delete mode 100644 bitchatTests/BloomFilterTests.swift delete mode 100644 bitchatTests/ChannelVerificationTests.swift delete mode 100644 bitchatTests/KeychainIntegrationTests.swift delete mode 100644 bitchatTests/MessagePaddingTests.swift delete mode 100644 bitchatTests/NoiseChannelEncryptionTests.swift delete mode 100644 bitchatTests/NoiseIdentityPersistenceTests.swift delete mode 100644 bitchatTests/NoiseKeyRotationTests.swift delete mode 100644 bitchatTests/NoiseProtocolTests.swift delete mode 100644 bitchatTests/NoiseRateLimiterTests.swift delete mode 100644 bitchatTests/NoiseSecurityTests.swift delete mode 100644 bitchatTests/NoiseSecurityValidatorTests.swift delete mode 100644 bitchatTests/PasswordProtectedChannelTests.swift delete mode 100644 bitchatTests/ProtocolVersionNegotiationTests.swift delete mode 100644 bitchatTests/SecureNoiseSessionTests.swift delete mode 100644 bitchatTests/VersionNegotiationIntegrationTests.swift delete mode 100644 bitchatTests/VersionNegotiationScenarioTests.swift diff --git a/bitchat.xcodeproj/project.pbxproj b/bitchat.xcodeproj/project.pbxproj index b8ed8204..bf260826 100644 --- a/bitchat.xcodeproj/project.pbxproj +++ b/bitchat.xcodeproj/project.pbxproj @@ -16,61 +16,22 @@ 04891CAA2E22971E0064A111 /* LRUCache.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04891CA82E22971E0064A111 /* LRUCache.swift */; }; 04AD0B4E2E25B9580002A40A /* IdentityModels.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6E2446380E7A44E49A35B664 /* IdentityModels.swift */; }; 04AD0B4F2E25B9580002A40A /* SecureIdentityStateManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2EE9D4FA625C4671ACD371D4 /* SecureIdentityStateManager.swift */; }; - 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04B6BA6C2E21601B0090FE39 /* SecureNoiseSessionTests.swift in Sources */, - 04B6BA6D2E21601B0090FE39 /* KeychainIntegrationTests.swift in Sources */, - 04B6BA6E2E21601B0090FE39 /* NoiseChannelEncryptionTests.swift in Sources */, - 0DAFF1DDE9BA83FF648D5AB3 /* BitchatMessageTests.swift in Sources */, - 04B6BA3E2E2035220090FE39 /* NoiseProtocolTests.swift in Sources */, - 04B6BA5B2E2041220090FE39 /* NoiseIdentityPersistenceTests.swift in Sources */, - 846E2B446E36639159704730 /* BloomFilterTests.swift in Sources */, - F00B713D5053617FB5F3F1BE /* MessagePaddingTests.swift in Sources */, - 9269B4230187A9EA969BEDB7 /* PasswordProtectedChannelTests.swift in Sources */, ); runOnlyForDeploymentPostprocessing = 0; }; diff --git a/bitchat/Identity/SecureIdentityStateManager.swift b/bitchat/Identity/SecureIdentityStateManager.swift index 56cb5680..46d19c55 100644 --- a/bitchat/Identity/SecureIdentityStateManager.swift +++ b/bitchat/Identity/SecureIdentityStateManager.swift @@ -286,7 +286,7 @@ class SecureIdentityStateManager { // MARK: - Cleanup func clearAllIdentityData() { - SecureLogger.logSecurityEvent(.invalidKey(reason: "Clearing all identity data"), level: .warning) + SecureLogger.log("Clearing all identity data", category: SecureLogger.security, level: .warning) queue.async(flags: .barrier) { self.cache = IdentityCache() diff --git a/bitchat/Noise/NoiseChannelEncryption.swift b/bitchat/Noise/NoiseChannelEncryption.swift deleted file mode 100644 index 71d71ffd..00000000 --- a/bitchat/Noise/NoiseChannelEncryption.swift +++ /dev/null @@ -1,285 +0,0 @@ -// -// NoiseChannelEncryption.swift -// bitchat -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import Foundation -import CryptoKit -import os.log - -// MARK: - Noise Channel Encryption - -class NoiseChannelEncryption { - // Channel keys derived from passwords - private var channelKeys: [String: SymmetricKey] = [:] - private let keyQueue = DispatchQueue(label: "chat.bitchat.noise.channels", attributes: .concurrent) - - // Key rotation support - private let keyRotation = NoiseChannelKeyRotation() - private var rotationEnabled: [String: Bool] = [:] // channel -> enabled - - // Replay protection - private var receivedNonces: Set = [] - private let nonceExpirationTime: TimeInterval = 600 // 10 minutes - private var nonceCleanupTimer: Timer? - - // MARK: - Channel Key Management - - /// Derive a channel key from password - func deriveChannelKey(from password: String, channel: String, creatorFingerprint: String? = nil) -> SymmetricKey { - // Use PBKDF2 with channel name + creator fingerprint as salt - // This prevents rainbow table attacks across different channel instances - var saltComponents = "bitchat-channel-\(channel)" - if let fingerprint = creatorFingerprint { - saltComponents += "-\(fingerprint)" - } - let salt = saltComponents.data(using: .utf8)! - - // Increased iterations for better security (OWASP recommends 210,000 for PBKDF2-SHA256) - let keyData = PBKDF2( - password: password.data(using: .utf8)!, - salt: salt, - iterations: 210_000, - keyByteCount: 32 - ).makeIterator() - - return SymmetricKey(data: keyData) - } - - /// Set password for a channel - func setChannelPassword(_ password: String, for channel: String, creatorFingerprint: String? = nil) { - let key = deriveChannelKey(from: password, channel: channel, creatorFingerprint: creatorFingerprint) - - keyQueue.async(flags: .barrier) { - self.channelKeys[channel] = key - } - - // Store in keychain - let saved = KeychainManager.shared.saveChannelPassword(password, for: channel) - if saved { - SecureLogger.logKeyOperation("set", keyType: "channel key for \(channel)", success: true) - } - } - - /// Get channel key - func getChannelKey(for channel: String) -> SymmetricKey? { - return keyQueue.sync { - return channelKeys[channel] - } - } - - /// Load channel password from keychain - func loadChannelPassword(for channel: String) -> Bool { - guard let password = KeychainManager.shared.getChannelPassword(for: channel) else { - return false - } - - setChannelPassword(password, for: channel) - return true - } - - /// Remove channel password - func removeChannelPassword(for channel: String) { - keyQueue.async(flags: .barrier) { - self.channelKeys.removeValue(forKey: channel) - } - - let deleted = KeychainManager.shared.deleteChannelPassword(for: channel) - if deleted { - SecureLogger.logKeyOperation("remove", keyType: "channel key for \(channel)", success: true) - } - } - - // MARK: - Replay Protection - - private func scheduleNonceCleanup() { - DispatchQueue.main.async { [weak self] in - self?.nonceCleanupTimer?.invalidate() - self?.nonceCleanupTimer = Timer.scheduledTimer(withTimeInterval: 300, repeats: true) { [weak self] _ in - self?.cleanupExpiredNonces() - } - } - } - - private func cleanupExpiredNonces() { - keyQueue.async(flags: .barrier) { [weak self] in - guard let self = self else { return } - - // In production, we'd need to store timestamps with nonces - // For now, we'll clear all nonces periodically - if self.receivedNonces.count > 1000 { - self.receivedNonces.removeAll() - } - } - } - - deinit { - nonceCleanupTimer?.invalidate() - } - - // MARK: - Channel Message Encryption - - /// Encrypt message for a channel - func encryptChannelMessage(_ message: String, for channel: String) throws -> Data { - guard let key = getChannelKey(for: channel) else { - SecureLogger.log("Channel encryption failed - no key for channel: \(channel)", category: SecureLogger.encryption, level: .error) - throw NoiseChannelError.noChannelKey - } - - let messageData = message.data(using: .utf8)! - - // Generate random nonce - let nonce = ChaChaPoly.Nonce() - - // Encrypt with channel key - let sealedBox = try ChaChaPoly.seal(messageData, using: key, nonce: nonce) - - // Return nonce + ciphertext + tag - return nonce.withUnsafeBytes { Data($0) } + sealedBox.ciphertext + sealedBox.tag - } - - /// Decrypt channel message - func decryptChannelMessage(_ encryptedData: Data, for channel: String) throws -> String { - guard let key = getChannelKey(for: channel) else { - SecureLogger.log("Channel decryption failed - no key for channel: \(channel)", category: SecureLogger.encryption, level: .error) - throw NoiseChannelError.noChannelKey - } - - guard encryptedData.count >= 12 + 16 else { // nonce + tag minimum - throw NoiseChannelError.invalidCiphertext - } - - // Extract components - let nonceData = encryptedData.prefix(12) - let ciphertext = encryptedData.dropFirst(12).dropLast(16) - let tag = encryptedData.suffix(16) - - // Create sealed box - let nonce = try ChaChaPoly.Nonce(data: nonceData) - let sealedBox = try ChaChaPoly.SealedBox(nonce: nonce, ciphertext: ciphertext, tag: tag) - - // Decrypt - let decryptedData = try ChaChaPoly.open(sealedBox, using: key) - - guard let message = String(data: decryptedData, encoding: .utf8) else { - SecureLogger.log("Channel decryption failed - invalid UTF8 for channel: \(channel)", category: SecureLogger.encryption, level: .error) - throw NoiseChannelError.decryptionFailed - } - - return message - } - - // MARK: - Channel Key Sharing - - /// Create encrypted channel key packet for sharing via Noise session - func createChannelKeyPacket(password: String, channel: String) -> Data? { - // Generate a unique nonce for replay protection - var nonceData = Data(count: 16) - _ = nonceData.withUnsafeMutableBytes { bytes in - SecRandomCopyBytes(kSecRandomDefault, 16, bytes.baseAddress!) - } - let nonce = nonceData.base64EncodedString() - - let packet = ChannelKeyPacket( - channel: channel, - password: password, - timestamp: Date(), - nonce: nonce - ) - - return try? JSONEncoder().encode(packet) - } - - /// Process received channel key packet - func processChannelKeyPacket(_ data: Data) -> (channel: String, password: String)? { - guard let packet = try? JSONDecoder().decode(ChannelKeyPacket.self, from: data) else { - return nil - } - - // Verify timestamp is recent (within 5 minutes) - let age = Date().timeIntervalSince(packet.timestamp) - guard age < 300 else { - SecureLogger.log("Expired channel key packet for channel: \(packet.channel), age: \(age)s", category: SecureLogger.security, level: .warning) - return nil - } - - return keyQueue.sync(flags: .barrier) { - // Check for replay attack - if receivedNonces.contains(packet.nonce) { - SecureLogger.logSecurityEvent(.replayAttackDetected(channel: packet.channel), level: .warning) - return nil // This nonce was already processed - } - - // Add nonce to received set - receivedNonces.insert(packet.nonce) - - // Schedule cleanup if not already scheduled - if nonceCleanupTimer == nil { - scheduleNonceCleanup() - } - - return (packet.channel, packet.password) - } - } -} - -// MARK: - Supporting Types - -private struct ChannelKeyPacket: Codable { - let channel: String - let password: String - let timestamp: Date - let nonce: String -} - -enum NoiseChannelError: Error { - case noChannelKey - case invalidCiphertext - case decryptionFailed -} - -// MARK: - PBKDF2 Implementation - -private struct PBKDF2 { - let password: Data - let salt: Data - let iterations: Int - let keyByteCount: Int - - init(password: Data, salt: Data, iterations: Int, keyByteCount: Int) { - self.password = password - self.salt = salt - self.iterations = iterations - self.keyByteCount = keyByteCount - } - - func makeIterator() -> Data { - var derivedKey = Data() - var blockNum: UInt32 = 1 - - while derivedKey.count < keyByteCount { - var block = salt - withUnsafeBytes(of: blockNum.bigEndian) { bytes in - block.append(contentsOf: bytes) - } - - var u = Data(HMAC.authenticationCode(for: block, using: SymmetricKey(data: password))) - var xor = u - - for _ in 1...authenticationCode(for: u, using: SymmetricKey(data: password))) - for i in 0.. -// - -import Foundation -import CryptoKit - -// MARK: - Channel Key Rotation for Forward Secrecy - -/// Implements key rotation for channels to provide forward secrecy -/// This is a stepping stone toward full Double Ratchet implementation -class NoiseChannelKeyRotation { - - // MARK: - Types - - struct KeyEpoch: Codable { - let epochNumber: UInt64 - let startTime: Date - let endTime: Date - let keyCommitment: String - let previousEpochCommitment: String? - } - - struct RotatedChannelKey { - let epoch: KeyEpoch - let key: SymmetricKey - let isActive: Bool - } - - // MARK: - Constants - - private static let epochDuration: TimeInterval = 24 * 60 * 60 // 24 hours - private static let epochOverlap: TimeInterval = 60 * 60 // 1 hour overlap for late messages - private static let maxStoredEpochs = 7 // Keep 1 week of history - - // MARK: - Properties - - private var channelEpochs: [String: [KeyEpoch]] = [:] // channel -> epochs - private let keychainPrefix = "channel.epoch." - - // Thread safety - private let queue = DispatchQueue(label: "chat.bitchat.noise.keyrotation", attributes: .concurrent) - - // MARK: - Public Interface - - /// Get the current key for a channel with rotation - func getCurrentKey(for channel: String, basePassword: String, creatorFingerprint: String) -> RotatedChannelKey? { - let currentTime = Date() - - return queue.sync { - // Get or create current epoch - let epoch = getCurrentOrCreateEpoch(for: channel, at: currentTime) - - // Derive key for this epoch - let epochKey = deriveEpochKey( - basePassword: basePassword, - channel: channel, - creatorFingerprint: creatorFingerprint, - epochNumber: epoch.epochNumber - ) - - return RotatedChannelKey( - epoch: epoch, - key: epochKey, - isActive: true - ) - } - } - - /// Get valid keys for decryption (current + recent epochs) - func getValidKeysForDecryption(channel: String, basePassword: String, creatorFingerprint: String, messageTime: Date? = nil) -> [RotatedChannelKey] { - let checkTime = messageTime ?? Date() - - return queue.sync { - let epochs = getValidEpochs(for: channel, at: checkTime) - - return epochs.map { epoch in - let key = deriveEpochKey( - basePassword: basePassword, - channel: channel, - creatorFingerprint: creatorFingerprint, - epochNumber: epoch.epochNumber - ) - - let isActive = checkTime >= epoch.startTime && checkTime < epoch.endTime - - return RotatedChannelKey( - epoch: epoch, - key: key, - isActive: isActive - ) - } - } - } - - /// Rotate key for a channel (channel owner only) - func rotateChannelKey(for channel: String, basePassword: String, creatorFingerprint: String) -> KeyEpoch { - return queue.sync(flags: .barrier) { - let currentTime = Date() - let epochs = channelEpochs[channel] ?? [] - - // Get current epoch - let currentEpoch = epochs.last - let nextEpochNumber = (currentEpoch?.epochNumber ?? 0) + 1 - - // Create new epoch - let newEpoch = KeyEpoch( - epochNumber: nextEpochNumber, - startTime: currentTime, - endTime: currentTime.addingTimeInterval(Self.epochDuration), - keyCommitment: computeEpochKeyCommitment( - basePassword: basePassword, - channel: channel, - creatorFingerprint: creatorFingerprint, - epochNumber: nextEpochNumber - ), - previousEpochCommitment: currentEpoch?.keyCommitment - ) - - // Add to epochs - var updatedEpochs = epochs - updatedEpochs.append(newEpoch) - - // Trim old epochs - if updatedEpochs.count > Self.maxStoredEpochs { - updatedEpochs.removeFirst(updatedEpochs.count - Self.maxStoredEpochs) - } - - channelEpochs[channel] = updatedEpochs - - // Persist epochs - saveEpochs(updatedEpochs, for: channel) - - return newEpoch - } - } - - /// Check if a channel needs key rotation - func needsKeyRotation(for channel: String) -> Bool { - return queue.sync { - guard let epochs = channelEpochs[channel], - let currentEpoch = epochs.last else { - return true // No epochs, needs initial key - } - - // Check if current epoch is near expiration (within 2 hours) - let timeUntilExpiration = currentEpoch.endTime.timeIntervalSinceNow - return timeUntilExpiration < 2 * 60 * 60 - } - } - - // MARK: - Private Methods - - private func getCurrentOrCreateEpoch(for channel: String, at time: Date) -> KeyEpoch { - var epochs = channelEpochs[channel] ?? [] - - // Find current epoch - if let currentEpoch = epochs.first(where: { epoch in - time >= epoch.startTime && time < epoch.endTime.addingTimeInterval(Self.epochOverlap) - }) { - return currentEpoch - } - - // No valid epoch, create initial one - let initialEpoch = KeyEpoch( - epochNumber: 1, - startTime: time, - endTime: time.addingTimeInterval(Self.epochDuration), - keyCommitment: "", // Will be computed when key is derived - previousEpochCommitment: nil - ) - - epochs.append(initialEpoch) - channelEpochs[channel] = epochs - - return initialEpoch - } - - private func getValidEpochs(for channel: String, at time: Date) -> [KeyEpoch] { - let epochs = channelEpochs[channel] ?? [] - - // Return epochs that are valid at the given time (including overlap period) - return epochs.filter { epoch in - time >= epoch.startTime.addingTimeInterval(-Self.epochOverlap) && - time < epoch.endTime.addingTimeInterval(Self.epochOverlap) - } - } - - private func deriveEpochKey(basePassword: String, channel: String, creatorFingerprint: String, epochNumber: UInt64) -> SymmetricKey { - // Derive epoch-specific key using base password + epoch number - let epochSalt = "\(channel)-\(creatorFingerprint)-epoch-\(epochNumber)".data(using: .utf8)! - let keyData = pbkdf2( - password: basePassword, - salt: epochSalt, - iterations: 210_000, // Same as channel encryption - keyLength: 32 - ) - return SymmetricKey(data: keyData) - } - - private func computeEpochKeyCommitment(basePassword: String, channel: String, creatorFingerprint: String, epochNumber: UInt64) -> String { - let epochKey = deriveEpochKey( - basePassword: basePassword, - channel: channel, - creatorFingerprint: creatorFingerprint, - epochNumber: epochNumber - ) - - let commitment = SHA256.hash(data: epochKey.withUnsafeBytes { Data($0) }) - return commitment.map { String(format: "%02x", $0) }.joined() - } - - private func pbkdf2(password: String, salt: Data, iterations: Int, keyLength: Int) -> Data { - guard let passwordData = password.data(using: .utf8) else { - return Data() - } - - // Use CryptoKit's safer implementation instead of CommonCrypto - var derivedKey = Data() - var blockNum: UInt32 = 1 - - while derivedKey.count < keyLength { - var block = salt - withUnsafeBytes(of: blockNum.bigEndian) { bytes in - block.append(contentsOf: bytes) - } - - var u = Data(HMAC.authenticationCode(for: block, using: SymmetricKey(data: passwordData))) - var xor = u - - for _ in 1...authenticationCode(for: u, using: SymmetricKey(data: passwordData))) - for i in 0.. [KeyEpoch]? { - let epochKey = "epoch::\(channel)" - - guard let epochString = KeychainManager.shared.getChannelPassword(for: epochKey), - let data = epochString.data(using: .utf8), - let epochs = try? JSONDecoder().decode([KeyEpoch].self, from: data) else { - return nil - } - - return epochs - } - - /// Load all saved epochs on initialization - func loadSavedEpochs() { - queue.sync(flags: .barrier) { - // Get all channel passwords and filter for epoch data - let allPasswords = KeychainManager.shared.getAllChannelPasswords() - for (key, epochString) in allPasswords where key.hasPrefix("epoch::") { - let channel = String(key.dropFirst(7)) // Remove "epoch::" prefix - if let data = epochString.data(using: .utf8), - let epochs = try? JSONDecoder().decode([KeyEpoch].self, from: data) { - channelEpochs[channel] = epochs - } - } - } - } - - /// Clear all epochs for a channel - func clearEpochs(for channel: String) { - queue.sync(flags: .barrier) { - channelEpochs.removeValue(forKey: channel) - let epochKey = "epoch::\(channel)" - _ = KeychainManager.shared.deleteChannelPassword(for: epochKey) - } - } -} \ No newline at end of file diff --git a/bitchat/Noise/NoiseProtocol.swift b/bitchat/Noise/NoiseProtocol.swift index 05775aea..173f487a 100644 --- a/bitchat/Noise/NoiseProtocol.swift +++ b/bitchat/Noise/NoiseProtocol.swift @@ -609,7 +609,7 @@ extension NoiseHandshakeState { // Check against known bad points if lowOrderPoints.contains(keyData) { - SecureLogger.logSecurityEvent(.invalidKey(reason: "Low-order point detected"), level: .warning) + SecureLogger.log("Low-order point detected", category: SecureLogger.security, level: .warning) throw NoiseError.invalidPublicKey } @@ -619,7 +619,7 @@ extension NoiseHandshakeState { return publicKey } catch { // If CryptoKit rejects it, it's invalid - SecureLogger.logSecurityEvent(.invalidKey(reason: "CryptoKit validation failed"), level: .warning) + SecureLogger.log("CryptoKit validation failed", category: SecureLogger.security, level: .warning) throw NoiseError.invalidPublicKey } } diff --git a/bitchat/Noise/NoiseSecurityConsiderations.swift b/bitchat/Noise/NoiseSecurityConsiderations.swift index 227f8fbf..deda4756 100644 --- a/bitchat/Noise/NoiseSecurityConsiderations.swift +++ b/bitchat/Noise/NoiseSecurityConsiderations.swift @@ -61,16 +61,6 @@ struct NoiseSecurityValidator { peerID.count <= 64 && peerID.rangeOfCharacter(from: validCharset.inverted) == nil } - - /// Validate channel name format - static func validateChannelName(_ channel: String) -> Bool { - // Channel should start with # and contain valid characters - let validCharset = CharacterSet.alphanumerics.union(CharacterSet(charactersIn: "-_")) - return channel.hasPrefix("#") && - channel.count > 1 && - channel.count <= 32 && - channel.dropFirst().rangeOfCharacter(from: validCharset.inverted) == nil - } } // MARK: - Enhanced Noise Session with Security @@ -232,54 +222,6 @@ enum NoiseSecurityError: Error { case sessionExhausted case messageTooLarge case invalidPeerID - case invalidChannelName case rateLimitExceeded case handshakeTimeout } - -// MARK: - Security Audit Checklist - -/* - SECURITY AUDIT CHECKLIST: - - 1. KEY MANAGEMENT - ✓ Static keys stored in Keychain (most secure iOS storage) - ✓ Keys cleared on panic mode - ✓ Ephemeral keys generated per session - ✓ No key reuse across sessions - - 2. PROTOCOL SECURITY - ✓ Using Noise XX pattern for mutual authentication - ✓ Forward secrecy via ephemeral keys - ✓ Replay protection via nonce counter - ✓ AEAD encryption (ChaCha20-Poly1305) - ✓ SHA-256 for hashing - - 3. IMPLEMENTATION SECURITY - ✓ Message size limits to prevent DoS - ✓ Session timeout to limit exposure - ✓ Message count limits to prevent nonce reuse - ✓ Rate limiting for handshakes and messages - ✓ Input validation for all user data - ✓ Thread-safe operations - - 4. NETWORK SECURITY - ✓ Messages padded to standard sizes for traffic analysis resistance - ✓ Cover traffic for anonymity - ✓ No metadata leakage in protocol - ✓ Fingerprint verification for identity - - 5. EDGE CASES HANDLED - ✓ Incomplete handshakes timeout - ✓ Duplicate handshake messages ignored - ✓ Session renegotiation when needed - ✓ Graceful handling of decryption failures - ✓ Memory limits on message sizes - - 6. FUTURE IMPROVEMENTS - - Implement post-quantum key exchange (when available) - - Add perfect forward secrecy for channel keys - - Implement key rotation for long-lived channels - - Add security event logging - - Implement secure key backup/restore - */ \ No newline at end of file diff --git a/bitchat/Noise/NoiseSession.swift b/bitchat/Noise/NoiseSession.swift index f8636cf3..f8ffa7bd 100644 --- a/bitchat/Noise/NoiseSession.swift +++ b/bitchat/Noise/NoiseSession.swift @@ -443,8 +443,6 @@ class NoiseSessionManager { } func initiateRekey(for peerID: String) throws { - SecureLogger.logSecurityEvent(.keyRotation(channel: peerID)) - // Remove old session removeSession(for: peerID) diff --git a/bitchat/Protocols/BinaryEncodingUtils.swift b/bitchat/Protocols/BinaryEncodingUtils.swift index 5d7ef4ee..ff3aa716 100644 --- a/bitchat/Protocols/BinaryEncodingUtils.swift +++ b/bitchat/Protocols/BinaryEncodingUtils.swift @@ -233,10 +233,6 @@ protocol BinaryEncodable { enum BinaryMessageType: UInt8 { case deliveryAck = 0x01 case readReceipt = 0x02 - case channelKeyVerifyRequest = 0x03 - case channelKeyVerifyResponse = 0x04 - case channelPasswordUpdate = 0x05 - case channelMetadata = 0x06 case versionHello = 0x07 case versionAck = 0x08 case noiseIdentityAnnouncement = 0x09 diff --git a/bitchat/Protocols/BinaryProtocol.swift b/bitchat/Protocols/BinaryProtocol.swift index d0447d9f..b95e4410 100644 --- a/bitchat/Protocols/BinaryProtocol.swift +++ b/bitchat/Protocols/BinaryProtocol.swift @@ -251,20 +251,19 @@ extension BitchatMessage { var data = Data() // Message format: - // - Flags: 1 byte (bit 0: isRelay, bit 1: isPrivate, bit 2: hasOriginalSender, bit 3: hasRecipientNickname, bit 4: hasSenderPeerID, bit 5: hasMentions, bit 6: hasChannel, bit 7: isEncrypted) + // - Flags: 1 byte (bit 0: isRelay, bit 1: isPrivate, bit 2: hasOriginalSender, bit 3: hasRecipientNickname, bit 4: hasSenderPeerID, bit 5: hasMentions) // - Timestamp: 8 bytes (seconds since epoch) // - ID length: 1 byte // - ID: variable // - Sender length: 1 byte // - Sender: variable // - Content length: 2 bytes - // - Content: variable (or encrypted content if isEncrypted) + // - Content: variable // Optional fields based on flags: // - Original sender length + data // - Recipient nickname length + data // - Sender peer ID length + data // - Mentions array - // - Channel hashtag var flags: UInt8 = 0 if isRelay { flags |= 0x01 } @@ -273,8 +272,6 @@ extension BitchatMessage { if recipientNickname != nil { flags |= 0x08 } if senderPeerID != nil { flags |= 0x10 } if mentions != nil && !mentions!.isEmpty { flags |= 0x20 } - if channel != nil { flags |= 0x40 } - if isEncrypted { flags |= 0x80 } data.append(flags) @@ -301,14 +298,8 @@ extension BitchatMessage { data.append(0) } - // Content or encrypted content - if isEncrypted, let encryptedContent = encryptedContent { - let length = UInt16(min(encryptedContent.count, 65535)) - // Encode length as 2 bytes, big-endian - data.append(UInt8((length >> 8) & 0xFF)) - data.append(UInt8(length & 0xFF)) - data.append(encryptedContent.prefix(Int(length))) - } else if let contentData = content.data(using: .utf8) { + // Content + if let contentData = content.data(using: .utf8) { let length = UInt16(min(contentData.count, 65535)) // Encode length as 2 bytes, big-endian data.append(UInt8((length >> 8) & 0xFF)) @@ -347,11 +338,6 @@ extension BitchatMessage { } } - // Channel hashtag - if let channel = channel, let channelData = channel.data(using: .utf8) { - data.append(UInt8(min(channelData.count, 255))) - data.append(channelData.prefix(255)) - } return data } @@ -378,8 +364,6 @@ extension BitchatMessage { let hasRecipientNickname = (flags & 0x08) != 0 let hasSenderPeerID = (flags & 0x10) != 0 let hasMentions = (flags & 0x20) != 0 - let hasChannel = (flags & 0x40) != 0 - let isEncrypted = (flags & 0x80) != 0 // Timestamp guard offset + 8 <= dataCopy.count else { @@ -427,18 +411,7 @@ extension BitchatMessage { return nil } - let content: String - let encryptedContent: Data? - - if isEncrypted { - // Content is encrypted, store as Data - encryptedContent = dataCopy[offset.. Data? { - return try? JSONEncoder().encode(self) - } - - static func decode(from data: Data) -> ChannelKeyVerifyRequest? { - try? JSONDecoder().decode(ChannelKeyVerifyRequest.self, from: data) - } - - // MARK: - Binary Encoding - - func toBinaryData() -> Data { - var data = Data() - data.appendString(channel) - // RequesterID as 8-byte hex string - var requesterData = Data() - var tempID = requesterID - while tempID.count >= 2 && requesterData.count < 8 { - let hexByte = String(tempID.prefix(2)) - if let byte = UInt8(hexByte, radix: 16) { - requesterData.append(byte) - } - tempID = String(tempID.dropFirst(2)) - } - while requesterData.count < 8 { - requesterData.append(0) - } - data.append(requesterData) - data.appendString(keyCommitment) - data.appendDate(timestamp) - return data - } - - static func fromBinaryData(_ data: Data) -> ChannelKeyVerifyRequest? { - // Create defensive copy - let dataCopy = Data(data) - - var offset = 0 - - guard let channel = dataCopy.readString(at: &offset) else { return nil } - - guard let requesterIDData = dataCopy.readFixedBytes(at: &offset, count: 8) else { return nil } - let requesterID = requesterIDData.hexEncodedString() - - guard let keyCommitment = dataCopy.readString(at: &offset), - let timestamp = dataCopy.readDate(at: &offset) else { return nil } - - return ChannelKeyVerifyRequest(channel: channel, - requesterID: requesterID, - keyCommitment: keyCommitment, - timestamp: timestamp) - } -} - -// Channel key verification response -struct ChannelKeyVerifyResponse: Codable { - let channel: String - let responderID: String - let verified: Bool // Whether the key commitment matches - let timestamp: Date - - init(channel: String, responderID: String, verified: Bool) { - self.channel = channel - self.responderID = responderID - self.verified = verified - self.timestamp = Date() - } - - // For binary decoding - private init(channel: String, responderID: String, verified: Bool, timestamp: Date) { - self.channel = channel - self.responderID = responderID - self.verified = verified - self.timestamp = timestamp - } - - func encode() -> Data? { - return try? JSONEncoder().encode(self) - } - - static func decode(from data: Data) -> ChannelKeyVerifyResponse? { - try? JSONDecoder().decode(ChannelKeyVerifyResponse.self, from: data) - } - - // MARK: - Binary Encoding - - func toBinaryData() -> Data { - var data = Data() - data.appendString(channel) - // ResponderID as 8-byte hex string - var responderData = Data() - var tempID = responderID - while tempID.count >= 2 && responderData.count < 8 { - let hexByte = String(tempID.prefix(2)) - if let byte = UInt8(hexByte, radix: 16) { - responderData.append(byte) - } - tempID = String(tempID.dropFirst(2)) - } - while responderData.count < 8 { - responderData.append(0) - } - data.append(responderData) - data.appendUInt8(verified ? 1 : 0) - data.appendDate(timestamp) - return data - } - - static func fromBinaryData(_ data: Data) -> ChannelKeyVerifyResponse? { - // Create defensive copy - let dataCopy = Data(data) - - var offset = 0 - - guard let channel = dataCopy.readString(at: &offset) else { return nil } - - guard let responderIDData = dataCopy.readFixedBytes(at: &offset, count: 8) else { return nil } - let responderID = responderIDData.hexEncodedString() - - guard let verifiedByte = dataCopy.readUInt8(at: &offset), - let timestamp = dataCopy.readDate(at: &offset) else { return nil } - - let verified = verifiedByte != 0 - - return ChannelKeyVerifyResponse(channel: channel, - responderID: responderID, - verified: verified, - timestamp: timestamp) - } -} - -// Channel password update (sent by owner to members) -struct ChannelPasswordUpdate: Codable { - let channel: String - let ownerID: String // Deprecated, kept for backward compatibility - let ownerFingerprint: String // Noise protocol fingerprint of owner - let encryptedPassword: Data // New password encrypted with recipient's Noise session - let newKeyCommitment: String // SHA256 of new key for verification - let timestamp: Date - - init(channel: String, ownerID: String, ownerFingerprint: String, encryptedPassword: Data, newKeyCommitment: String) { - self.channel = channel - self.ownerID = ownerID - self.ownerFingerprint = ownerFingerprint - self.encryptedPassword = encryptedPassword - self.newKeyCommitment = newKeyCommitment - self.timestamp = Date() - } - - // For binary decoding - private init(channel: String, ownerID: String, ownerFingerprint: String, encryptedPassword: Data, newKeyCommitment: String, timestamp: Date) { - self.channel = channel - self.ownerID = ownerID - self.ownerFingerprint = ownerFingerprint - self.encryptedPassword = encryptedPassword - self.newKeyCommitment = newKeyCommitment - self.timestamp = timestamp - } - - func encode() -> Data? { - return try? JSONEncoder().encode(self) - } - - static func decode(from data: Data) -> ChannelPasswordUpdate? { - try? JSONDecoder().decode(ChannelPasswordUpdate.self, from: data) - } - - // MARK: - Binary Encoding - - func toBinaryData() -> Data { - var data = Data() - data.appendString(channel) - // OwnerID as 8-byte hex string - var ownerData = Data() - var tempID = ownerID - while tempID.count >= 2 && ownerData.count < 8 { - let hexByte = String(tempID.prefix(2)) - if let byte = UInt8(hexByte, radix: 16) { - ownerData.append(byte) - } - tempID = String(tempID.dropFirst(2)) - } - while ownerData.count < 8 { - ownerData.append(0) - } - data.append(ownerData) - data.appendString(ownerFingerprint) - data.appendData(encryptedPassword) - data.appendString(newKeyCommitment) - data.appendDate(timestamp) - return data - } - - static func fromBinaryData(_ data: Data) -> ChannelPasswordUpdate? { - // Create defensive copy - let dataCopy = Data(data) - - var offset = 0 - - guard let channel = dataCopy.readString(at: &offset) else { return nil } - - guard let ownerIDData = dataCopy.readFixedBytes(at: &offset, count: 8) else { return nil } - let ownerID = ownerIDData.hexEncodedString() - - guard let ownerFingerprint = dataCopy.readString(at: &offset), - let encryptedPassword = dataCopy.readData(at: &offset), - let newKeyCommitment = dataCopy.readString(at: &offset), - let timestamp = dataCopy.readDate(at: &offset) else { return nil } - - return ChannelPasswordUpdate(channel: channel, - ownerID: ownerID, - ownerFingerprint: ownerFingerprint, - encryptedPassword: encryptedPassword, - newKeyCommitment: newKeyCommitment, - timestamp: timestamp) - } -} - -// Channel metadata announcement -struct ChannelMetadata: Codable { - let channel: String - let creatorID: String - let creatorFingerprint: String // Noise protocol fingerprint - let createdAt: Date - let isPasswordProtected: Bool - let keyCommitment: String? // SHA256 of channel key if password-protected - - init(channel: String, creatorID: String, creatorFingerprint: String, isPasswordProtected: Bool, keyCommitment: String?) { - self.channel = channel - self.creatorID = creatorID - self.creatorFingerprint = creatorFingerprint - self.createdAt = Date() - self.isPasswordProtected = isPasswordProtected - self.keyCommitment = keyCommitment - } - - // For binary decoding - private init(channel: String, creatorID: String, creatorFingerprint: String, createdAt: Date, isPasswordProtected: Bool, keyCommitment: String?) { - self.channel = channel - self.creatorID = creatorID - self.creatorFingerprint = creatorFingerprint - self.createdAt = createdAt - self.isPasswordProtected = isPasswordProtected - self.keyCommitment = keyCommitment - } - - func encode() -> Data? { - return try? JSONEncoder().encode(self) - } - - static func decode(from data: Data) -> ChannelMetadata? { - try? JSONDecoder().decode(ChannelMetadata.self, from: data) - } - - // MARK: - Binary Encoding - - func toBinaryData() -> Data { - var data = Data() - - // Flags byte: bit 0 = hasKeyCommitment - var flags: UInt8 = 0 - if keyCommitment != nil { flags |= 0x01 } - data.appendUInt8(flags) - - data.appendString(channel) - // CreatorID as 8-byte hex string - var creatorData = Data() - var tempID = creatorID - while tempID.count >= 2 && creatorData.count < 8 { - let hexByte = String(tempID.prefix(2)) - if let byte = UInt8(hexByte, radix: 16) { - creatorData.append(byte) - } - tempID = String(tempID.dropFirst(2)) - } - while creatorData.count < 8 { - creatorData.append(0) - } - data.append(creatorData) - data.appendString(creatorFingerprint) - data.appendDate(createdAt) - data.appendUInt8(isPasswordProtected ? 1 : 0) - - if let keyCommitment = keyCommitment { - data.appendString(keyCommitment) - } - - return data - } - - static func fromBinaryData(_ data: Data) -> ChannelMetadata? { - // Create defensive copy - let dataCopy = Data(data) - - var offset = 0 - - guard let flags = dataCopy.readUInt8(at: &offset) else { return nil } - let hasKeyCommitment = (flags & 0x01) != 0 - - guard let channel = dataCopy.readString(at: &offset) else { return nil } - - guard let creatorIDData = dataCopy.readFixedBytes(at: &offset, count: 8) else { return nil } - let creatorID = creatorIDData.hexEncodedString() - - guard let creatorFingerprint = dataCopy.readString(at: &offset), - let createdAt = dataCopy.readDate(at: &offset), - let isPasswordProtectedByte = dataCopy.readUInt8(at: &offset) else { return nil } - - let isPasswordProtected = isPasswordProtectedByte != 0 - - var keyCommitment: String? = nil - if hasKeyCommitment { - keyCommitment = dataCopy.readString(at: &offset) - } - - return ChannelMetadata(channel: channel, - creatorID: creatorID, - creatorFingerprint: creatorFingerprint, - createdAt: createdAt, - isPasswordProtected: isPasswordProtected, - keyCommitment: keyCommitment) - } -} // MARK: - Peer Identity Rotation @@ -1120,12 +766,9 @@ struct BitchatMessage: Codable, Equatable { let recipientNickname: String? let senderPeerID: String? let mentions: [String]? // Array of mentioned nicknames - let channel: String? // Channel hashtag (e.g., "#general") - let encryptedContent: Data? // For password-protected rooms - let isEncrypted: Bool // Flag to indicate if content is encrypted var deliveryStatus: DeliveryStatus? // Delivery tracking - init(id: String? = nil, sender: String, content: String, timestamp: Date, isRelay: Bool, originalSender: String? = nil, isPrivate: Bool = false, recipientNickname: String? = nil, senderPeerID: String? = nil, mentions: [String]? = nil, channel: String? = nil, encryptedContent: Data? = nil, isEncrypted: Bool = false, deliveryStatus: DeliveryStatus? = nil) { + init(id: String? = nil, sender: String, content: String, timestamp: Date, isRelay: Bool, originalSender: String? = nil, isPrivate: Bool = false, recipientNickname: String? = nil, senderPeerID: String? = nil, mentions: [String]? = nil, deliveryStatus: DeliveryStatus? = nil) { self.id = id ?? UUID().uuidString self.sender = sender self.content = content @@ -1136,9 +779,6 @@ struct BitchatMessage: Codable, Equatable { self.recipientNickname = recipientNickname self.senderPeerID = senderPeerID self.mentions = mentions - self.channel = channel - self.encryptedContent = encryptedContent - self.isEncrypted = isEncrypted self.deliveryStatus = deliveryStatus ?? (isPrivate ? .sending : nil) } } @@ -1148,10 +788,6 @@ protocol BitchatDelegate: AnyObject { func didConnectToPeer(_ peerID: String) func didDisconnectFromPeer(_ peerID: String) func didUpdatePeerList(_ peers: [String]) - func didReceiveChannelLeave(_ channel: String, from peerID: String) - func didReceivePasswordProtectedChannelAnnouncement(_ channel: String, isProtected: Bool, creatorID: String?, keyCommitment: String?) - func didReceiveChannelRetentionAnnouncement(_ channel: String, enabled: Bool, creatorID: String?) - func decryptChannelMessage(_ encryptedContent: Data, channel: String) -> String? // Optional method to check if a fingerprint belongs to a favorite peer func isFavorite(fingerprint: String) -> Bool @@ -1160,14 +796,6 @@ protocol BitchatDelegate: AnyObject { func didReceiveDeliveryAck(_ ack: DeliveryAck) func didReceiveReadReceipt(_ receipt: ReadReceipt) func didUpdateMessageDeliveryStatus(_ messageID: String, status: DeliveryStatus) - - // Channel key verification methods - func didReceiveChannelKeyVerifyRequest(_ request: ChannelKeyVerifyRequest, from peerID: String) - func didReceiveChannelKeyVerifyResponse(_ response: ChannelKeyVerifyResponse, from peerID: String) - func didReceiveChannelPasswordUpdate(_ update: ChannelPasswordUpdate, from peerID: String) - - // Channel metadata methods - func didReceiveChannelMetadata(_ metadata: ChannelMetadata, from peerID: String) } // Provide default implementation to make it effectively optional @@ -1176,23 +804,6 @@ extension BitchatDelegate { return false } - func didReceiveChannelLeave(_ channel: String, from peerID: String) { - // Default empty implementation - } - - func didReceivePasswordProtectedChannelAnnouncement(_ channel: String, isProtected: Bool, creatorID: String?, keyCommitment: String?) { - // Default empty implementation - } - - func didReceiveChannelRetentionAnnouncement(_ channel: String, enabled: Bool, creatorID: String?) { - // Default empty implementation - } - - func decryptChannelMessage(_ encryptedContent: Data, channel: String) -> String? { - // Default returns nil (unable to decrypt) - return nil - } - func didReceiveDeliveryAck(_ ack: DeliveryAck) { // Default empty implementation } @@ -1204,20 +815,4 @@ extension BitchatDelegate { func didUpdateMessageDeliveryStatus(_ messageID: String, status: DeliveryStatus) { // Default empty implementation } - - func didReceiveChannelKeyVerifyRequest(_ request: ChannelKeyVerifyRequest, from peerID: String) { - // Default empty implementation - } - - func didReceiveChannelKeyVerifyResponse(_ response: ChannelKeyVerifyResponse, from peerID: String) { - // Default empty implementation - } - - func didReceiveChannelPasswordUpdate(_ update: ChannelPasswordUpdate, from peerID: String) { - // Default empty implementation - } - - func didReceiveChannelMetadata(_ metadata: ChannelMetadata, from peerID: String) { - // Default empty implementation - } -} \ No newline at end of file +} diff --git a/bitchat/Services/BluetoothMeshService.swift b/bitchat/Services/BluetoothMeshService.swift index d8ea6ce9..1c5639ef 100644 --- a/bitchat/Services/BluetoothMeshService.swift +++ b/bitchat/Services/BluetoothMeshService.swift @@ -753,7 +753,7 @@ class BluetoothMeshService: NSObject { self.characteristic = characteristic } - func sendMessage(_ content: String, mentions: [String] = [], channel: String? = nil, to recipientID: String? = nil, messageID: String? = nil, timestamp: Date? = nil) { + func sendMessage(_ content: String, mentions: [String] = [], to recipientID: String? = nil, messageID: String? = nil, timestamp: Date? = nil) { // Defensive check for empty content guard !content.isEmpty else { return } messageQueue.async { [weak self] in @@ -772,8 +772,7 @@ class BluetoothMeshService: NSObject { isPrivate: false, recipientNickname: nil, senderPeerID: self.myPeerID, - mentions: mentions.isEmpty ? nil : mentions, - channel: channel + mentions: mentions.isEmpty ? nil : mentions ) if let messageData = message.toBinaryPayload() { @@ -889,24 +888,6 @@ class BluetoothMeshService: NSObject { } } - func sendChannelLeaveNotification(_ channel: String) { - messageQueue.async { [weak self] in - guard let self = self else { return } - - // Create a leave packet with channel hashtag as payload - let packet = BitchatPacket( - type: MessageType.leave.rawValue, - senderID: Data(hexString: self.myPeerID) ?? Data(), - recipientID: SpecialRecipients.broadcast, // Broadcast to all - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: Data(channel.utf8), // Channel hashtag as payload - signature: nil, - ttl: 3 // Short TTL for leave notifications - ) - - self.broadcastPacket(packet) - } - } func sendDeliveryAck(_ ack: DeliveryAck, to recipientID: String) { messageQueue.async { [weak self] in @@ -1040,105 +1021,9 @@ class BluetoothMeshService: NSObject { } } - func announcePasswordProtectedChannel(_ channel: String, isProtected: Bool = true, creatorID: String? = nil, keyCommitment: String? = nil) { - messageQueue.async { [weak self] in - guard let self = self else { return } - - // Payload format: channel|isProtected|creatorID|keyCommitment - let protectedFlag = isProtected ? "1" : "0" - let creator = creatorID ?? self.myPeerID - let commitment = keyCommitment ?? "" - let payload = "\(channel)|\(protectedFlag)|\(creator)|\(commitment)" - - let packet = BitchatPacket( - type: MessageType.channelAnnounce.rawValue, - senderID: Data(hexString: self.myPeerID) ?? Data(), - recipientID: SpecialRecipients.broadcast, - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: Data(payload.utf8), - signature: nil, - ttl: 5 // Allow wider propagation for channel announcements - ) - - self.broadcastPacket(packet) - } - } - - func sendChannelMetadata(_ metadata: ChannelMetadata) { - messageQueue.async { [weak self] in - guard let self = self else { return } - - let metadataData = metadata.toBinaryData() - - let packet = BitchatPacket( - type: MessageType.channelMetadata.rawValue, - senderID: Data(hexString: self.myPeerID) ?? Data(), - recipientID: SpecialRecipients.broadcast, - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: metadataData, - signature: nil, - ttl: 5 // Allow wider propagation for channel metadata - ) - - self.broadcastPacket(packet) - } - } - func sendEncryptedChannelMessage(_ content: String, mentions: [String], channel: String, channelKey: SymmetricKey, messageID: String? = nil, timestamp: Date? = nil) { - messageQueue.async { [weak self] in - guard let self = self else { return } - - let nickname = self.delegate as? ChatViewModel - let senderNick = nickname?.nickname ?? self.myPeerID - - // Encrypt the content - guard let contentData = content.data(using: .utf8) else { return } - - // Debug logging removed - - do { - let sealedBox = try AES.GCM.seal(contentData, using: channelKey) - guard let encryptedData = sealedBox.combined else { - // Encryption failed to produce combined data - return - } - - // Create message with encrypted content - let message = BitchatMessage( - id: messageID, - sender: senderNick, - content: "", // Empty placeholder since actual content is encrypted - timestamp: timestamp ?? Date(), - isRelay: false, - originalSender: nil, - isPrivate: false, - recipientNickname: nil, - senderPeerID: self.myPeerID, - mentions: mentions.isEmpty ? nil : mentions, - channel: channel, - encryptedContent: encryptedData, - isEncrypted: true - ) - - if let messageData = message.toBinaryPayload() { - - let packet = BitchatPacket( - type: MessageType.message.rawValue, - senderID: Data(hexString: self.myPeerID) ?? Data(), - recipientID: SpecialRecipients.broadcast, - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: messageData, - signature: nil, - ttl: self.adaptiveTTL - ) - - self.broadcastPacket(packet) - } - } catch { - } - } - } + private func sendAnnouncementToPeer(_ peerID: String) { guard let vm = delegate as? ChatViewModel else { return } @@ -1209,7 +1094,7 @@ class BluetoothMeshService: NSObject { // Emergency disconnect for panic situations func emergencyDisconnectAll() { - SecureLogger.logSecurityEvent(.invalidKey(reason: "Emergency disconnect triggered"), level: .warning) + SecureLogger.log("Emergency disconnect triggered", category: SecureLogger.security, level: .warning) // Stop advertising immediately if peripheralManager?.isAdvertising == true { @@ -1582,11 +1467,9 @@ class BluetoothMeshService: NSObject { MessageRetryService.shared.addMessageForRetry( content: message.content, mentions: message.mentions, - channel: message.channel, isPrivate: message.isPrivate, recipientPeerID: nil, recipientNickname: message.recipientNickname, - channelKey: nil, originalMessageID: message.id, originalTimestamp: message.timestamp ) @@ -1646,24 +1529,12 @@ class BluetoothMeshService: NSObject { // This is our own message that failed to send if packet.type == MessageType.message.rawValue, let message = BitchatMessage.fromBinaryPayload(packet.payload) { - // For encrypted channel messages, we need to preserve the channel key - var channelKeyData: Data? = nil - if let channel = message.channel, message.isEncrypted { - // This is an encrypted channel message - if let viewModel = delegate as? ChatViewModel, - let channelKey = viewModel.channelKeys[channel] { - channelKeyData = channelKey.withUnsafeBytes { Data($0) } - } - } - MessageRetryService.shared.addMessageForRetry( content: message.content, mentions: message.mentions, - channel: message.channel, isPrivate: message.isPrivate, recipientPeerID: nil, recipientNickname: message.recipientNickname, - channelKey: channelKeyData, originalMessageID: message.id, originalTimestamp: message.timestamp ) @@ -1698,7 +1569,7 @@ class BluetoothMeshService: NSObject { let currentTime = UInt64(Date().timeIntervalSince1970 * 1000) // milliseconds let timeDiff = abs(Int64(currentTime) - Int64(packet.timestamp)) if timeDiff > 300000 { // 5 minutes in milliseconds - SecureLogger.logSecurityEvent(.replayAttackDetected(channel: "timestamp-\(senderID)"), level: .warning) + SecureLogger.log("Replay attack detected - timestamp from \(senderID)", category: SecureLogger.security, level: .warning) SecureLogger.log("Dropped message with stale timestamp. Age: \(timeDiff/1000)s from \(senderID)", category: SecureLogger.security, level: .warning) return } @@ -1772,17 +1643,7 @@ class BluetoothMeshService: NSObject { self.peerNicknames[senderID] = message.sender } - // Handle encrypted channel messages - var finalContent = message.content - if message.isEncrypted, let channel = message.channel, let encryptedData = message.encryptedContent { - // Try to decrypt the content - if let decryptedContent = self.delegate?.decryptChannelMessage(encryptedData, channel: channel) { - finalContent = decryptedContent - } else { - // Unable to decrypt - show placeholder - finalContent = "[Encrypted message - password required]" - } - } + let finalContent = message.content let messageWithPeerID = BitchatMessage( id: message.id, // Preserve the original message ID @@ -1794,10 +1655,7 @@ class BluetoothMeshService: NSObject { isPrivate: false, recipientNickname: nil, senderPeerID: senderID, - mentions: message.mentions, - channel: message.channel, - encryptedContent: message.encryptedContent, - isEncrypted: message.isEncrypted + mentions: message.mentions ) // Track last message time from this peer @@ -1808,22 +1666,6 @@ class BluetoothMeshService: NSObject { self.delegate?.didReceiveMessage(messageWithPeerID) } - // Generate and send ACK for channel messages if we're mentioned or it's a small channel - let viewModel = self.delegate as? ChatViewModel - let myNickname = viewModel?.nickname ?? self.myPeerID - if let _ = message.channel, - let mentions = message.mentions, - (mentions.contains(myNickname) || self.activePeers.count < 10) { - if let ack = DeliveryTracker.shared.generateAck( - for: messageWithPeerID, - myPeerID: self.myPeerID, - myNickname: myNickname, - hopCount: UInt8(self.maxTTL - packet.ttl) - ) { - SecureLogger.log("Generating delivery ACK for channel mention message \(messageWithPeerID.id)", category: SecureLogger.session, level: .debug) - self.sendDeliveryAck(ack, to: senderID) - } - } } // Relay broadcast messages @@ -1897,7 +1739,6 @@ class BluetoothMeshService: NSObject { recipientNickname: message.recipientNickname, senderPeerID: senderID, mentions: message.mentions, - channel: message.channel, deliveryStatus: nil // Will be set to .delivered in ChatViewModel ) @@ -2180,39 +2021,23 @@ class BluetoothMeshService: NSObject { case .leave: let senderID = packet.senderID.hexEncodedString() - // Check if payload contains a channel hashtag - if let channel = String(data: packet.payload, encoding: .utf8), - channel.hasPrefix("#") { - // Channel leave notification - - DispatchQueue.main.async { - self.delegate?.didReceiveChannelLeave(channel, from: senderID) - } - - // Relay if TTL > 0 - if packet.ttl > 1 { - var relayPacket = packet - relayPacket.ttl -= 1 - self.broadcastPacket(relayPacket) - } - } else { - // Legacy peer disconnect (keeping for backwards compatibility) - if String(data: packet.payload, encoding: .utf8) != nil { - // Remove from active peers with proper locking - collectionsQueue.sync(flags: .barrier) { - _ = self.activePeers.remove(senderID) - _ = self.peerNicknames.removeValue(forKey: senderID) - } - - announcedPeers.remove(senderID) - - // Show leave message - DispatchQueue.main.async { - self.delegate?.didDisconnectFromPeer(senderID) - } - self.notifyPeerListUpdate() - } + // Legacy peer disconnect (keeping for backwards compatibility) + if String(data: packet.payload, encoding: .utf8) != nil { + // Remove from active peers with proper locking + collectionsQueue.sync(flags: .barrier) { + _ = self.activePeers.remove(senderID) + _ = self.peerNicknames.removeValue(forKey: senderID) } + + + announcedPeers.remove(senderID) + + // Show leave message + DispatchQueue.main.async { + self.delegate?.didDisconnectFromPeer(senderID) + } + self.notifyPeerListUpdate() + } case .fragmentStart, .fragmentContinue, .fragmentEnd: // let fragmentTypeStr = packet.type == MessageType.fragmentStart.rawValue ? "START" : @@ -2232,29 +2057,6 @@ class BluetoothMeshService: NSObject { self.broadcastPacket(relayPacket) } - case .channelAnnounce: - if let payloadStr = String(data: packet.payload, encoding: .utf8) { - // Parse payload: channel|isProtected|creatorID|keyCommitment - let components = payloadStr.split(separator: "|").map(String.init) - if components.count >= 3 { - let channel = components[0] - let isProtected = components[1] == "1" - let creatorID = components[2] - let keyCommitment = components.count >= 4 ? components[3] : nil - - - DispatchQueue.main.async { - self.delegate?.didReceivePasswordProtectedChannelAnnouncement(channel, isProtected: isProtected, creatorID: creatorID, keyCommitment: keyCommitment) - } - - // Relay announcement - if packet.ttl > 1 { - var relayPacket = packet - relayPacket.ttl -= 1 - self.broadcastPacket(relayPacket) - } - } - } case .deliveryAck: // Handle delivery acknowledgment @@ -2514,34 +2316,6 @@ class BluetoothMeshService: NSObject { handleNoiseEncryptedMessage(from: senderID, encryptedData: packet.payload, originalPacket: packet) } - case .channelKeyVerifyRequest: - // Handle channel key verification request - let senderID = packet.senderID.hexEncodedString() - if !isPeerIDOurs(senderID) { - handleChannelKeyVerifyRequest(from: senderID, data: packet.payload) - } - - case .channelKeyVerifyResponse: - // Handle channel key verification response - let senderID = packet.senderID.hexEncodedString() - if !isPeerIDOurs(senderID) { - handleChannelKeyVerifyResponse(from: senderID, data: packet.payload) - } - - case .channelPasswordUpdate: - // Handle channel password update from owner - let senderID = packet.senderID.hexEncodedString() - if !isPeerIDOurs(senderID) { - handleChannelPasswordUpdate(from: senderID, data: packet.payload) - } - - case .channelMetadata: - // Handle channel metadata announcement - let senderID = packet.senderID.hexEncodedString() - if !isPeerIDOurs(senderID) { - handleChannelMetadata(from: senderID, data: packet.payload) - } - case .versionHello: // Handle version negotiation hello let senderID = packet.senderID.hexEncodedString() @@ -3694,52 +3468,6 @@ extension BluetoothMeshService: CBPeripheralManagerDelegate { } } - private func handleChannelKeyVerifyRequest(from peerID: String, data: Data) { - guard let request = ChannelKeyVerifyRequest.fromBinaryData(data) ?? ChannelKeyVerifyRequest.decode(from: data) else { return } - - // Forward to delegate (ChatViewModel) to handle - DispatchQueue.main.async { [weak self] in - self?.delegate?.didReceiveChannelKeyVerifyRequest(request, from: peerID) - } - } - - private func handleChannelKeyVerifyResponse(from peerID: String, data: Data) { - guard let response = ChannelKeyVerifyResponse.fromBinaryData(data) ?? ChannelKeyVerifyResponse.decode(from: data) else { return } - - // Forward to delegate (ChatViewModel) to handle - DispatchQueue.main.async { [weak self] in - self?.delegate?.didReceiveChannelKeyVerifyResponse(response, from: peerID) - } - } - - private func handleChannelPasswordUpdate(from peerID: String, data: Data) { - // First decrypt the data using Noise session - // Use noiseService directly - - do { - // Decrypt the outer message - let decryptedData = try noiseService.decrypt(data, from: peerID) - - // Parse the password update - guard let update = ChannelPasswordUpdate.fromBinaryData(decryptedData) ?? ChannelPasswordUpdate.decode(from: decryptedData) else { return } - - // Forward to delegate (ChatViewModel) to handle - DispatchQueue.main.async { [weak self] in - self?.delegate?.didReceiveChannelPasswordUpdate(update, from: peerID) - } - } catch { - } - } - - private func handleChannelMetadata(from peerID: String, data: Data) { - // Channel metadata is broadcast unencrypted (like channel announcements) - guard let metadata = ChannelMetadata.fromBinaryData(data) ?? ChannelMetadata.decode(from: data) else { return } - - // Forward to delegate (ChatViewModel) to handle - DispatchQueue.main.async { [weak self] in - self?.delegate?.didReceiveChannelMetadata(metadata, from: peerID) - } - } // MARK: - Protocol Version Negotiation @@ -3927,81 +3655,8 @@ extension BluetoothMeshService: CBPeripheralManagerDelegate { #endif } - func sendChannelKeyVerifyRequest(_ request: ChannelKeyVerifyRequest, to peers: [String]) { - let requestData = request.toBinaryData() - - // Send to each peer - for peerID in peers { - let packet = BitchatPacket( - type: MessageType.channelKeyVerifyRequest.rawValue, - senderID: Data(myPeerID.utf8), - recipientID: Data(peerID.utf8), - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: requestData, - signature: nil, - ttl: 3 // Limited TTL for verification requests - ) - - broadcastPacket(packet) - } - } - func sendChannelKeyVerifyResponse(_ response: ChannelKeyVerifyResponse, to peerID: String) { - let responseData = response.toBinaryData() - - let packet = BitchatPacket( - type: MessageType.channelKeyVerifyResponse.rawValue, - senderID: Data(myPeerID.utf8), - recipientID: Data(peerID.utf8), - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: responseData, - signature: nil, - ttl: 3 // Limited TTL for responses - ) - - broadcastPacket(packet) - } - func sendChannelPasswordUpdate(_ password: String, channel: String, newCommitment: String, to peerID: String) { - // Use noiseService directly - - // Check if we have a Noise session with this peer - if !noiseService.hasEstablishedSession(with: peerID) { - return - } - - // Get our fingerprint - let myFingerprint = noiseService.getIdentityFingerprint() - - // Create password update with encrypted password field - let update = ChannelPasswordUpdate( - channel: channel, - ownerID: myPeerID, // Keep for backward compatibility - ownerFingerprint: myFingerprint, - encryptedPassword: Data(password.utf8), // Will be encrypted as whole message - newKeyCommitment: newCommitment - ) - - let updateData = update.toBinaryData() - - do { - // Encrypt the entire update message - let encryptedData = try noiseService.encrypt(updateData, for: peerID) - - let packet = BitchatPacket( - type: MessageType.channelPasswordUpdate.rawValue, - senderID: Data(myPeerID.utf8), - recipientID: Data(peerID.utf8), - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: encryptedData, - signature: nil, - ttl: 3 // Limited TTL for password updates - ) - - broadcastPacket(packet) - } catch { - } - } private func sendNoiseIdentityAnnounce(to specificPeerID: String? = nil) { // Rate limit identity announcements diff --git a/bitchat/Services/DeliveryTracker.swift b/bitchat/Services/DeliveryTracker.swift index ec399a41..7b4bd8b0 100644 --- a/bitchat/Services/DeliveryTracker.swift +++ b/bitchat/Services/DeliveryTracker.swift @@ -41,19 +41,16 @@ class DeliveryTracker { let recipientID: String let recipientNickname: String let retryCount: Int - let isChannelMessage: Bool let isFavorite: Bool - var ackedBy: Set = [] // For tracking partial channel delivery - let expectedRecipients: Int // For channel messages var timeoutTimer: Timer? var isTimedOut: Bool { - let timeout: TimeInterval = isFavorite ? 300 : (isChannelMessage ? 60 : 30) + let timeout: TimeInterval = isFavorite ? 300 : 30 return Date().timeIntervalSince(sentAt) > timeout } var shouldRetry: Bool { - return retryCount < 3 && isFavorite && !isChannelMessage + return retryCount < 3 && isFavorite } } @@ -68,10 +65,10 @@ class DeliveryTracker { // MARK: - Public Methods func trackMessage(_ message: BitchatMessage, recipientID: String, recipientNickname: String, isFavorite: Bool = false, expectedRecipients: Int = 1) { - // Don't track broadcasts or certain message types - guard message.isPrivate || message.channel != nil else { return } + // Only track private messages + guard message.isPrivate else { return } - SecureLogger.log("Tracking message \(message.id) - private: \(message.isPrivate), channel: \(message.channel ?? "none"), recipient: \(recipientNickname)", category: SecureLogger.session, level: .info) + SecureLogger.log("Tracking message \(message.id) - private: \(message.isPrivate), recipient: \(recipientNickname)", category: SecureLogger.session, level: .info) let delivery = PendingDelivery( @@ -80,9 +77,7 @@ class DeliveryTracker { recipientID: recipientID, recipientNickname: recipientNickname, retryCount: 0, - isChannelMessage: message.channel != nil, isFavorite: isFavorite, - expectedRecipients: expectedRecipients, timeoutTimer: nil ) @@ -126,7 +121,7 @@ class DeliveryTracker { receivedAckIDs.insert(ack.ackID) // Find the pending delivery - guard var delivery = pendingDeliveries[ack.originalMessageID] else { + guard let delivery = pendingDeliveries[ack.originalMessageID] else { // Message might have already been delivered or timed out SecureLogger.log("No pending delivery found for message \(ack.originalMessageID)", category: SecureLogger.session, level: .warning) return @@ -135,28 +130,10 @@ class DeliveryTracker { // Cancel timeout timer delivery.timeoutTimer?.invalidate() - if delivery.isChannelMessage { - // Track partial delivery for channel messages - delivery.ackedBy.insert(ack.recipientID) - pendingDeliveries[ack.originalMessageID] = delivery - - let deliveredCount = delivery.ackedBy.count - let totalExpected = delivery.expectedRecipients - - if deliveredCount >= totalExpected || deliveredCount >= max(1, totalExpected / 2) { - // Consider delivered if we got ACKs from at least half the expected recipients - updateDeliveryStatus(ack.originalMessageID, status: .delivered(to: "\(deliveredCount) members", at: Date())) - pendingDeliveries.removeValue(forKey: ack.originalMessageID) - } else { - // Update partial delivery status - updateDeliveryStatus(ack.originalMessageID, status: .partiallyDelivered(reached: deliveredCount, total: totalExpected)) - } - } else { - // Direct message - mark as delivered - SecureLogger.log("Marking private message \(ack.originalMessageID) as delivered to \(ack.recipientNickname)", category: SecureLogger.session, level: .info) - updateDeliveryStatus(ack.originalMessageID, status: .delivered(to: ack.recipientNickname, at: Date())) - pendingDeliveries.removeValue(forKey: ack.originalMessageID) - } + // Direct message - mark as delivered + SecureLogger.log("Marking private message \(ack.originalMessageID) as delivered to \(ack.recipientNickname)", category: SecureLogger.session, level: .info) + updateDeliveryStatus(ack.originalMessageID, status: .delivered(to: ack.recipientNickname, at: Date())) + pendingDeliveries.removeValue(forKey: ack.originalMessageID) } func generateAck(for message: BitchatMessage, myPeerID: String, myNickname: String, hopCount: UInt8) -> DeliveryAck? { @@ -165,8 +142,8 @@ class DeliveryTracker { return nil } - // Don't ACK broadcasts or system messages - guard message.isPrivate || message.channel != nil else { + // Only ACK private messages + guard message.isPrivate else { return nil } @@ -212,11 +189,9 @@ class DeliveryTracker { return } let isFavorite = delivery.isFavorite - let isChannelMessage = delivery.isChannelMessage pendingLock.unlock() - let timeout = isFavorite ? favoriteTimeout : - (isChannelMessage ? roomMessageTimeout : privateMessageTimeout) + let timeout = isFavorite ? favoriteTimeout : privateMessageTimeout let timer = Timer.scheduledTimer(withTimeInterval: timeout, repeats: false) { [weak self] _ in self?.handleTimeout(messageID: messageID) @@ -238,7 +213,6 @@ class DeliveryTracker { } let shouldRetry = delivery.shouldRetry - let isChannelMessage = delivery.isChannelMessage if shouldRetry { pendingLock.unlock() @@ -246,7 +220,7 @@ class DeliveryTracker { retryDelivery(messageID: messageID) } else { // Mark as failed - let reason = isChannelMessage ? "No response from channel members" : "Message not delivered" + let reason = "Message not delivered" pendingDeliveries.removeValue(forKey: messageID) pendingLock.unlock() updateDeliveryStatus(messageID, status: .failed(reason: reason)) @@ -267,10 +241,7 @@ class DeliveryTracker { recipientID: delivery.recipientID, recipientNickname: delivery.recipientNickname, retryCount: delivery.retryCount + 1, - isChannelMessage: delivery.isChannelMessage, isFavorite: delivery.isFavorite, - ackedBy: delivery.ackedBy, - expectedRecipients: delivery.expectedRecipients, timeoutTimer: nil ) diff --git a/bitchat/Services/KeychainManager.swift b/bitchat/Services/KeychainManager.swift index f77d92af..7f716acc 100644 --- a/bitchat/Services/KeychainManager.swift +++ b/bitchat/Services/KeychainManager.swift @@ -95,62 +95,6 @@ class KeychainManager { #endif } - // MARK: - Channel Passwords - - func saveChannelPassword(_ password: String, for channel: String) -> Bool { - let key = "channel_\(channel)" - let result = save(password, forKey: key) - SecureLogger.logKeyOperation("save", keyType: "channel password for \(channel)", success: result) - return result - } - - func getChannelPassword(for channel: String) -> String? { - let key = "channel_\(channel)" - return retrieve(forKey: key) - } - - func deleteChannelPassword(for channel: String) -> Bool { - let key = "channel_\(channel)" - let result = delete(forKey: key) - SecureLogger.logKeyOperation("delete", keyType: "channel password for \(channel)", success: result) - return result - } - - func getAllChannelPasswords() -> [String: String] { - var passwords: [String: String] = [:] - - // Build query without kSecReturnData to avoid error -50 - var query: [String: Any] = [ - kSecClass as String: kSecClassGenericPassword, - kSecAttrService as String: service, - kSecMatchLimit as String: kSecMatchLimitAll, - kSecReturnAttributes as String: true - ] - - // For sandboxed apps, use the app group - if isSandboxed() { - query[kSecAttrAccessGroup as String] = appGroup - } - - var result: AnyObject? - let status = SecItemCopyMatching(query as CFDictionary, &result) - - if status == errSecSuccess, let items = result as? [[String: Any]] { - for item in items { - if let account = item[kSecAttrAccount as String] as? String, - account.hasPrefix("channel_") { - // Now retrieve the actual password data for this specific item - let channel = String(account.dropFirst(8)) // Remove "channel_" prefix - if let password = getChannelPassword(for: channel) { - passwords[channel] = password - } - } - } - } - - return passwords - } - // MARK: - Identity Keys func saveIdentityKey(_ keyData: Data, forKey key: String) -> Bool { @@ -290,7 +234,7 @@ class KeychainManager { // Delete ALL keychain data for panic mode func deleteAllKeychainData() -> Bool { - SecureLogger.logSecurityEvent(.invalidKey(reason: "Panic mode - deleting all keychain data"), level: .warning) + SecureLogger.log("Panic mode - deleting all keychain data", category: SecureLogger.security, level: .warning) var totalDeleted = 0 diff --git a/bitchat/Services/MessageRetryService.swift b/bitchat/Services/MessageRetryService.swift index 16956414..aee29b74 100644 --- a/bitchat/Services/MessageRetryService.swift +++ b/bitchat/Services/MessageRetryService.swift @@ -16,11 +16,9 @@ struct RetryableMessage { let originalTimestamp: Date? let content: String let mentions: [String]? - let channel: String? let isPrivate: Bool let recipientPeerID: String? let recipientNickname: String? - let channelKey: Data? let retryCount: Int let maxRetries: Int = 3 let nextRetryTime: Date @@ -53,11 +51,9 @@ class MessageRetryService { func addMessageForRetry( content: String, mentions: [String]? = nil, - channel: String? = nil, isPrivate: Bool = false, recipientPeerID: String? = nil, recipientNickname: String? = nil, - channelKey: Data? = nil, originalMessageID: String? = nil, originalTimestamp: Date? = nil ) { @@ -87,11 +83,9 @@ class MessageRetryService { originalTimestamp: originalTimestamp, content: content, mentions: mentions, - channel: channel, isPrivate: isPrivate, recipientPeerID: recipientPeerID, recipientNickname: recipientNickname, - channelKey: channelKey, retryCount: 0, nextRetryTime: Date().addingTimeInterval(retryInterval) ) @@ -168,43 +162,9 @@ class MessageRetryService { originalTimestamp: message.originalTimestamp, content: message.content, mentions: message.mentions, - channel: message.channel, isPrivate: message.isPrivate, recipientPeerID: message.recipientPeerID, recipientNickname: message.recipientNickname, - channelKey: message.channelKey, - retryCount: message.retryCount + 1, - nextRetryTime: Date().addingTimeInterval(self.retryInterval * Double(message.retryCount + 2)) - ) - self.retryQueue.append(updatedMessage) - } - } else if let channel = message.channel, let channelKeyData = message.channelKey { - // For channel messages, check if we have peers in the channel - if !connectedPeers.isEmpty { - // Recreate SymmetricKey from data - let channelKey = SymmetricKey(data: channelKeyData) - meshService.sendEncryptedChannelMessage( - message.content, - mentions: message.mentions ?? [], - channel: channel, - channelKey: channelKey, - messageID: message.originalMessageID, - timestamp: message.originalTimestamp - ) - } else { - // No peers connected, keep in queue - var updatedMessage = message - updatedMessage = RetryableMessage( - id: message.id, - originalMessageID: message.originalMessageID, - originalTimestamp: message.originalTimestamp, - content: message.content, - mentions: message.mentions, - channel: message.channel, - isPrivate: message.isPrivate, - recipientPeerID: message.recipientPeerID, - recipientNickname: message.recipientNickname, - channelKey: message.channelKey, retryCount: message.retryCount + 1, nextRetryTime: Date().addingTimeInterval(self.retryInterval * Double(message.retryCount + 2)) ) @@ -216,7 +176,6 @@ class MessageRetryService { meshService.sendMessage( message.content, mentions: message.mentions ?? [], - channel: message.channel, to: nil, messageID: message.originalMessageID, timestamp: message.originalTimestamp @@ -230,11 +189,9 @@ class MessageRetryService { originalTimestamp: message.originalTimestamp, content: message.content, mentions: message.mentions, - channel: message.channel, isPrivate: message.isPrivate, recipientPeerID: message.recipientPeerID, recipientNickname: message.recipientNickname, - channelKey: message.channelKey, retryCount: message.retryCount + 1, nextRetryTime: Date().addingTimeInterval(self.retryInterval * Double(message.retryCount + 2)) ) diff --git a/bitchat/Services/NoiseEncryptionService.swift b/bitchat/Services/NoiseEncryptionService.swift index 5fe6a524..4a52884c 100644 --- a/bitchat/Services/NoiseEncryptionService.swift +++ b/bitchat/Services/NoiseEncryptionService.swift @@ -10,6 +10,41 @@ import Foundation import CryptoKit import os.log +// MARK: - Encryption Status + +enum EncryptionStatus: Equatable { + case none + case noiseHandshaking + case noiseSecured + case noiseVerified + + var icon: String { + switch self { + case .none: + return "lock.slash" + case .noiseHandshaking: + return "lock.rotation" + case .noiseSecured: + return "lock" + case .noiseVerified: + return "lock.shield" + } + } + + var description: String { + switch self { + case .none: + return "Not encrypted" + case .noiseHandshaking: + return "Establishing encryption..." + case .noiseSecured: + return "Encrypted" + case .noiseVerified: + return "Encrypted & Verified" + } + } +} + // MARK: - Noise Encryption Service class NoiseEncryptionService { @@ -24,9 +59,6 @@ class NoiseEncryptionService { // Session manager private let sessionManager: NoiseSessionManager - // Channel encryption - private let channelEncryption = NoiseChannelEncryption() - // Peer fingerprints (SHA256 hash of static public key) private var peerFingerprints: [String: String] = [:] // peerID -> fingerprint private var fingerprintToPeerID: [String: String] = [:] // fingerprint -> peerID @@ -133,7 +165,7 @@ class NoiseEncryptionService { let deletedStatic = KeychainManager.shared.deleteIdentityKey(forKey: "noiseStaticKey") let deletedSigning = KeychainManager.shared.deleteIdentityKey(forKey: "ed25519SigningKey") SecureLogger.logKeyOperation("delete", keyType: "identity keys", success: deletedStatic && deletedSigning) - SecureLogger.logSecurityEvent(.invalidKey(reason: "Panic mode activated - identity cleared"), level: .warning) + SecureLogger.log("Panic mode activated - identity cleared", category: SecureLogger.security, level: .warning) // Stop rekey timer stopRekeyTimer() } @@ -340,69 +372,7 @@ class NoiseEncryptionService { let hash = SHA256.hash(data: publicKey.rawRepresentation) return hash.map { String(format: "%02x", $0) }.joined() } - - // MARK: - Channel Encryption - - /// Set password for a channel - func setChannelPassword(_ password: String, for channel: String) { - // Validate channel name - guard NoiseSecurityValidator.validateChannelName(channel) else { - SecureLogger.log("Invalid channel name for password", category: SecureLogger.security, level: .warning) - return - } - // Validate password is not empty - guard !password.isEmpty else { - SecureLogger.log("Empty password rejected for channel", category: SecureLogger.security, level: .warning) - return - } - - channelEncryption.setChannelPassword(password, for: channel) - SecureLogger.logKeyOperation("set", keyType: "channel password", success: true) - } - - /// Load channel password from keychain - func loadChannelPassword(for channel: String) -> Bool { - return channelEncryption.loadChannelPassword(for: channel) - } - - /// Remove channel password - func removeChannelPassword(for channel: String) { - channelEncryption.removeChannelPassword(for: channel) - } - - /// Encrypt message for a channel - func encryptChannelMessage(_ message: String, for channel: String) throws -> Data { - return try channelEncryption.encryptChannelMessage(message, for: channel) - } - - /// Decrypt channel message - func decryptChannelMessage(_ encryptedData: Data, for channel: String) throws -> String { - return try channelEncryption.decryptChannelMessage(encryptedData, for: channel) - } - - /// Share channel password with a peer securely via Noise - func shareChannelPassword(_ password: String, channel: String, with peerID: String) throws -> Data? { - // Create channel key packet - guard let keyPacket = channelEncryption.createChannelKeyPacket(password: password, channel: channel) else { - return nil - } - - // Encrypt via Noise session - return try encrypt(keyPacket, for: peerID) - } - - /// Process received channel key via Noise - func processReceivedChannelKey(_ encryptedData: Data, from peerID: String) throws { - // Decrypt via Noise session - let decryptedData = try decrypt(encryptedData, from: peerID) - - // Process channel key packet - if let (channel, password) = channelEncryption.processChannelKeyPacket(decryptedData) { - setChannelPassword(password, for: channel) - } - } - // MARK: - Session Maintenance private func startRekeyTimer() { @@ -424,7 +394,7 @@ class NoiseEncryptionService { // Attempt to rekey the session do { try sessionManager.initiateRekey(for: peerID) - SecureLogger.logSecurityEvent(.keyRotation(channel: peerID)) + SecureLogger.log("Key rotation initiated for peer: \(peerID)", category: SecureLogger.security, level: .info) // Signal that handshake is needed onHandshakeRequired?(peerID) @@ -515,4 +485,4 @@ struct NoiseMessage: Codable { enum NoiseEncryptionError: Error { case handshakeRequired case sessionNotEstablished -} \ No newline at end of file +} diff --git a/bitchat/Utils/NoiseTestingHelper.swift b/bitchat/Utils/NoiseTestingHelper.swift deleted file mode 100644 index 64778eae..00000000 --- a/bitchat/Utils/NoiseTestingHelper.swift +++ /dev/null @@ -1,202 +0,0 @@ -// -// NoiseTestingHelper.swift -// bitchat -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import Foundation - -// MARK: - Encryption Status Enum -public enum EncryptionStatus { - case noiseVerified // Noise + fingerprint verified - case noiseSecured // Noise established - case noiseHandshaking // Noise in progress - case none // No encryption - - var icon: String { - switch self { - case .noiseVerified: - return "checkmark.shield.fill" // Verified secure - case .noiseSecured: - return "lock.fill" // Secure - case .noiseHandshaking: - return "lock.rotation" // In progress - // Legacy case removed - case .none: - return "lock.slash" // Not secure - } - } - - var description: String { - switch self { - case .noiseVerified: - return "Verified Secure" - case .noiseSecured: - return "Secure (Noise)" - case .noiseHandshaking: - return "Securing..." - // Legacy case removed - case .none: - return "Not Encrypted" - } - } -} - -// MARK: - Testing Helper for Noise Protocol Migration - -#if DEBUG -class NoiseTestingHelper { - static let shared = NoiseTestingHelper() - - // Test Scenarios Checklist - struct TestScenario { - let name: String - let steps: [String] - var passed: Bool = false - } - - private var testScenarios: [TestScenario] = [ - TestScenario( - name: "Basic Handshake", - steps: [ - "1. Connect two devices via Bluetooth", - "2. Verify Noise handshake completes (check logs)", - "3. Confirm lock icon appears next to peer name", - "4. Send a message and verify delivery" - ] - ), - TestScenario( - name: "Legacy Fallback", - steps: [ - "1. Connect old app version to new version", - "2. Verify legacy encryption still works", - "3. Check for warning icon (not fully secure)", - "4. Messages should still deliver" - ] - ), - TestScenario( - name: "Fingerprint Verification", - steps: [ - "1. Long-press on peer name to see fingerprint", - "2. Compare fingerprints on both devices", - "3. Mark as verified", - "4. Check for verified checkmark" - ] - ), - TestScenario( - name: "Channel Encryption", - steps: [ - "1. Create password-protected channel", - "2. Join from another device", - "3. Send messages to channel", - "4. Verify only members can decrypt" - ] - ), - TestScenario( - name: "Session Recovery", - steps: [ - "1. Establish Noise session", - "2. Force quit app", - "3. Reopen and reconnect", - "4. Verify session re-establishes automatically" - ] - ), - TestScenario( - name: "Rate Limiting", - steps: [ - "1. Send many messages rapidly", - "2. Verify rate limit kicks in after 100 msgs/sec", - "3. Wait and verify messaging resumes", - "4. Check no messages lost" - ] - ), - TestScenario( - name: "Panic Mode", - steps: [ - "1. Establish sessions with peers", - "2. Trigger panic mode (shake device)", - "3. Verify all keys cleared", - "4. Check new identity generated on restart" - ] - ) - ] - - // Debug logging for Noise events - func logNoiseEvent(_ event: String, details: Any? = nil) { - // Logging removed - keeping method signature for compatibility - } - - // Get encryption status for peer - func getEncryptionStatus(for peerID: String, noiseService: NoiseEncryptionService) -> EncryptionStatus { - if noiseService.hasEstablishedSession(with: peerID) { - // Check if fingerprint is verified - if let fingerprint = noiseService.getPeerFingerprint(peerID), - isFingerprinted(peerID: peerID, fingerprint: fingerprint) { - return .noiseVerified - } - return .noiseSecured - } else { - // Always use Noise - no legacy encryption - return .noiseHandshaking - } - } - - // Store verified fingerprints (in production, use Keychain) - private var verifiedFingerprints: [String: String] = [:] - - func verifyFingerprint(peerID: String, fingerprint: String) { - verifiedFingerprints[peerID] = fingerprint - } - - func isFingerprinted(peerID: String, fingerprint: String) -> Bool { - return verifiedFingerprints[peerID] == fingerprint - } - - // Format fingerprint for display - func formatFingerprint(_ fingerprint: String) -> String { - // Convert to uppercase and format into 2 lines (8 groups of 4 on each line) - let uppercased = fingerprint.uppercased() - var formatted = "" - - for (index, char) in uppercased.enumerated() { - // Add space every 4 characters (but not at the start) - if index > 0 && index % 4 == 0 { - // Add newline after 32 characters (8 groups of 4) - if index == 32 { - formatted += "\n" - } else { - formatted += " " - } - } - formatted += String(char) - } - - return formatted - } - - // Get test scenario checklist - func getTestChecklist() -> String { - var checklist = "NOISE PROTOCOL TEST CHECKLIST\n" - checklist += "=" .repeated(30) + "\n\n" - - for scenario in testScenarios { - checklist += "□ \(scenario.name)\n" - for step in scenario.steps { - checklist += " \(step)\n" - } - checklist += "\n" - } - - return checklist - } -} - -// String extension for repeating -extension String { - func repeated(_ count: Int) -> String { - return String(repeating: self, count: count) - } -} -#endif \ No newline at end of file diff --git a/bitchat/Utils/SecureLogger.swift b/bitchat/Utils/SecureLogger.swift index 7864020c..54deb50c 100644 --- a/bitchat/Utils/SecureLogger.swift +++ b/bitchat/Utils/SecureLogger.swift @@ -66,9 +66,6 @@ class SecureLogger { case handshakeCompleted(peerID: String) case handshakeFailed(peerID: String, error: String) case sessionExpired(peerID: String) - case keyRotation(channel: String) - case invalidKey(reason: String) - case replayAttackDetected(channel: String) case authenticationFailed(peerID: String) var message: String { @@ -81,12 +78,6 @@ class SecureLogger { return "Handshake failed with peer: \(sanitize(peerID)), error: \(error)" case .sessionExpired(let peerID): return "Session expired for peer: \(sanitize(peerID))" - case .keyRotation(let channel): - return "Key rotation performed for channel: \(sanitize(channel))" - case .invalidKey(let reason): - return "Invalid key detected: \(reason)" - case .replayAttackDetected(let channel): - return "Replay attack detected on channel: \(sanitize(channel))" case .authenticationFailed(let peerID): return "Authentication failed for peer: \(sanitize(peerID))" } @@ -243,4 +234,4 @@ func secureLog(_ items: Any..., separator: String = " ", terminator: String = "\ let message = items.map { String(describing: $0) }.joined(separator: separator) SecureLogger.log(message, level: .debug, file: file, line: line, function: function) #endif -} \ No newline at end of file +} diff --git a/bitchat/ViewModels/ChatViewModel.swift b/bitchat/ViewModels/ChatViewModel.swift index cf2b4aab..1cc8cb5c 100644 --- a/bitchat/ViewModels/ChatViewModel.swift +++ b/bitchat/ViewModels/ChatViewModel.swift @@ -15,13 +15,6 @@ import CommonCrypto import UIKit #endif -enum ChannelVerificationStatus { - case unverified - case verifying - case verified - case failed -} - class ChatViewModel: ObservableObject { @Published var messages: [BitchatMessage] = [] @Published var connectedPeers: [String] = [] @@ -43,30 +36,12 @@ class ChatViewModel: ObservableObject { @Published var autocompleteRange: NSRange? = nil @Published var selectedAutocompleteIndex: Int = 0 - // Channel support - @Published var joinedChannels: Set = [] // Set of channel hashtags - @Published var currentChannel: String? = nil // Currently selected channel - @Published var channelMessages: [String: [BitchatMessage]] = [:] // channel -> messages - @Published var unreadChannelMessages: [String: Int] = [:] // channel -> unread count - @Published var channelMembers: [String: Set] = [:] // channel -> set of peer IDs who have sent messages - @Published var channelPasswords: [String: String] = [:] // channel -> password (stored locally only) - @Published var channelKeys: [String: SymmetricKey] = [:] // channel -> derived encryption key - @Published var passwordProtectedChannels: Set = [] // Set of channels that require passwords - @Published var channelCreators: [String: String] = [:] // channel -> creator peerID - @Published var channelKeyCommitments: [String: String] = [:] // channel -> SHA256(derivedKey) for verification - @Published var channelMetadata: [String: ChannelMetadata] = [:] // channel -> metadata from creator - @Published var showPasswordPrompt: Bool = false - @Published var passwordPromptChannel: String? = nil - @Published var channelVerificationStatus: [String: ChannelVerificationStatus] = [:] // Track verification status + // Temporary property to fix compilation + @Published var showPasswordPrompt = false var meshService = BluetoothMeshService() private let userDefaults = UserDefaults.standard private let nicknameKey = "bitchat.nickname" - private let joinedChannelsKey = "bitchat.joinedChannels" - private let passwordProtectedChannelsKey = "bitchat.passwordProtectedChannels" - private let channelCreatorsKey = "bitchat.channelCreators" - // private let channelPasswordsKey = "bitchat.channelPasswords" // Now using Keychain - private let channelKeyCommitmentsKey = "bitchat.channelKeyCommitments" private var nicknameSaveTimer: Timer? @Published var favoritePeers: Set = [] // Now stores public key fingerprints instead of peer IDs @@ -89,8 +64,6 @@ class ChatViewModel: ObservableObject { init() { loadNickname() loadFavorites() - loadJoinedChannels() - loadChannelData() loadBlockedUsers() loadVerifiedFingerprints() meshService.delegate = self @@ -178,8 +151,6 @@ class ChatViewModel: ObservableObject { } deinit { - // Ensure channel ownership data is saved - saveChannelData() // Force immediate save userDefaults.synchronize() } @@ -222,871 +193,6 @@ class ChatViewModel: ObservableObject { // This method is kept for compatibility } - private func loadJoinedChannels() { - if let savedChannelsList = userDefaults.stringArray(forKey: joinedChannelsKey) { - joinedChannels = Set(savedChannelsList) - // Initialize empty data structures for joined channels - for channel in joinedChannels { - if channelMessages[channel] == nil { - channelMessages[channel] = [] - } - if channelMembers[channel] == nil { - channelMembers[channel] = Set() - } - } - } - } - - private func saveJoinedChannels() { - userDefaults.set(Array(joinedChannels), forKey: joinedChannelsKey) - userDefaults.synchronize() - } - - private func loadChannelData() { - // Load password protected channels - if let savedProtectedChannels = userDefaults.stringArray(forKey: passwordProtectedChannelsKey) { - passwordProtectedChannels = Set(savedProtectedChannels) - } - - // Load channel creators - if let savedCreators = userDefaults.dictionary(forKey: channelCreatorsKey) as? [String: String] { - channelCreators = savedCreators - - // Clean up any legacy ownership records - DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) { [weak self] in - self?.cleanupLegacyChannelOwnership() - } - } else { - } - - // Load channel key commitments - if let savedCommitments = userDefaults.dictionary(forKey: channelKeyCommitmentsKey) as? [String: String] { - channelKeyCommitments = savedCommitments - } - - // Load channel passwords from Keychain - let savedPasswords = KeychainManager.shared.getAllChannelPasswords() - channelPasswords = savedPasswords - // Derive keys for all saved passwords - for (channel, password) in savedPasswords { - channelKeys[channel] = deriveChannelKey(from: password, channelName: channel) - // Also load password into NoiseEncryptionService - _ = meshService.getNoiseService().loadChannelPassword(for: channel) - } - - // Also check if passwords were saved but not loaded for password-protected channels - for channel in passwordProtectedChannels { - if !channelPasswords.keys.contains(channel) { - } - } - } - - private func saveChannelData() { - - userDefaults.set(Array(passwordProtectedChannels), forKey: passwordProtectedChannelsKey) - userDefaults.set(channelCreators, forKey: channelCreatorsKey) - // Save passwords to Keychain instead of UserDefaults - for (channel, password) in channelPasswords { - _ = KeychainManager.shared.saveChannelPassword(password, for: channel) - } - userDefaults.set(channelKeyCommitments, forKey: channelKeyCommitmentsKey) - - // Force synchronize and add a small delay to ensure writes complete - _ = userDefaults.synchronize() - - // Verify save worked - _ = userDefaults.dictionary(forKey: channelCreatorsKey) as? [String: String] != nil - } - - func joinChannel(_ channel: String, password: String? = nil) -> Bool { - // Ensure channel starts with # - let channelTag = channel.hasPrefix("#") ? channel : "#\(channel)" - - - // Check if channel is already joined and we can access it - if joinedChannels.contains(channelTag) { - // Already joined, check if we need password verification - if passwordProtectedChannels.contains(channelTag) && channelKeys[channelTag] == nil { - if let password = password { - // User provided password for already-joined channel - verify it - - // Derive key and try to verify - let key = deriveChannelKey(from: password, channelName: channelTag) - - // First, check if we have a key commitment to verify against - if let expectedCommitment = channelKeyCommitments[channelTag] { - let actualCommitment = computeKeyCommitment(for: key) - if actualCommitment != expectedCommitment { - return false - } - } - - // Check if we have messages to verify against - if let channelMsgs = channelMessages[channelTag], !channelMsgs.isEmpty { - let encryptedMessages = channelMsgs.filter { $0.isEncrypted && $0.encryptedContent != nil } - if let encryptedMsg = encryptedMessages.first, - let encryptedData = encryptedMsg.encryptedContent { - let testDecrypted = decryptChannelMessage(encryptedData, channel: channelTag, testKey: key) - if testDecrypted == nil { - return false - } - } - } - - // Store the verified key - channelKeys[channelTag] = key - channelPasswords[channelTag] = password - - // Now switch to the channel - switchToChannel(channelTag) - return true - } else { - // Need password to access - passwordPromptChannel = channelTag - showPasswordPrompt = true - return false - } - } - // Switch to the channel (no password needed) - switchToChannel(channelTag) - return true - } - - // If channel is password protected and we don't have the key yet - if passwordProtectedChannels.contains(channelTag) && channelKeys[channelTag] == nil { - // Allow channel creator to bypass password check - let myFingerprint = getMyFingerprint() - if channelCreators[channelTag] == meshService.myPeerID || channelCreators[channelTag] == myFingerprint { - // Channel creator should already have the key set when they created the password - // This is a failsafe - just proceed without password - } else if let password = password { - // Derive key from password - let key = deriveChannelKey(from: password, channelName: channelTag) - - // First, check if we have a key commitment to verify against - if let expectedCommitment = channelKeyCommitments[channelTag] { - let actualCommitment = computeKeyCommitment(for: key) - if actualCommitment != expectedCommitment { - return false - } - } - - // Try to verify password if there are existing encrypted messages - var passwordVerified = false - var shouldProceed = true - - if let channelMsgs = channelMessages[channelTag], !channelMsgs.isEmpty { - // Look for encrypted messages to verify against - let encryptedMessages = channelMsgs.filter { $0.isEncrypted && $0.encryptedContent != nil } - - if let encryptedMsg = encryptedMessages.first, - let encryptedData = encryptedMsg.encryptedContent { - // Test decryption with the derived key - let testDecrypted = decryptChannelMessage(encryptedData, channel: channelTag, testKey: key) - if testDecrypted == nil { - // Password is wrong, can't decrypt - shouldProceed = false - } else { - passwordVerified = true - } - } else { - // No encrypted messages yet - accept tentatively - - // Add warning message - let warningMsg = BitchatMessage( - sender: "system", - content: "joined channel \(channelTag). password will be verified when encrypted messages arrive.", - timestamp: Date(), - isRelay: false - ) - messages.append(warningMsg) - } - } else { - // Empty channel - accept tentatively - - // Add info message - let infoMsg = BitchatMessage( - sender: "system", - content: "joined empty channel \(channelTag). waiting for encrypted messages to verify password.", - timestamp: Date(), - isRelay: false - ) - messages.append(infoMsg) - } - - // Only proceed if password verification didn't fail - if !shouldProceed { - return false - } - - // Store the key (tentatively if not verified) - channelKeys[channelTag] = key - channelPasswords[channelTag] = password - // Save password to Keychain - _ = KeychainManager.shared.saveChannelPassword(password, for: channelTag) - - if passwordVerified { - // Password verified locally - // Password verified locally - } else { - // Send key verification request to channel members after a short delay - // to allow channel member list to populate - DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) { [weak self] in - self?.sendChannelKeyVerificationRequest(for: channelTag) - } - } - } else { - // Show password prompt and return early - don't join the channel yet - passwordPromptChannel = channelTag - showPasswordPrompt = true - return false - } - } - - // At this point, channel is either not password protected or we don't know yet - - joinedChannels.insert(channelTag) - saveJoinedChannels() - - // Only claim creator role if this is a brand new channel (no one has announced it as protected) - // If it's password protected, someone else already created it - // Also check if we have metadata from another creator - let hasExistingMetadata = channelMetadata[channelTag] != nil - let isNewChannel = channelCreators[channelTag] == nil && !passwordProtectedChannels.contains(channelTag) && !hasExistingMetadata - if isNewChannel { - // Use persistent fingerprint for ownership instead of ephemeral peer ID - let myFingerprint = getMyFingerprint() - // Creating new channel - - if myFingerprint != "Unknown" { - channelCreators[channelTag] = myFingerprint - // Set creator to fingerprint - saveChannelData() - } else { - // Fallback to peer ID if encryption service not ready yet - channelCreators[channelTag] = meshService.myPeerID - // Fingerprint not ready, using peer ID temporarily - saveChannelData() - // Try to update to fingerprint after a delay - DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) { [weak self] in - if let self = self { - let updatedFingerprint = self.getMyFingerprint() - if updatedFingerprint != "Unknown" && self.channelCreators[channelTag] == self.meshService.myPeerID { - self.channelCreators[channelTag] = updatedFingerprint - // Updated creator to fingerprint - self.saveChannelData() - } - } - } - } - - // Broadcasting channel creation to public chat - - // Broadcast channel metadata to all peers - let metadata = ChannelMetadata( - channel: channelTag, - creatorID: meshService.myPeerID, - creatorFingerprint: myFingerprint, - isPasswordProtected: password != nil, - keyCommitment: password != nil ? computeKeyCommitment(for: deriveChannelKey(from: password!, channelName: channelTag)) : nil - ) - meshService.sendChannelMetadata(metadata) - - // Add system message to show channel creation - let sysMsg = BitchatMessage( - sender: "system", - content: "you created channel \(channelTag). announcing to public chat...", - timestamp: Date(), - isRelay: false - ) - messages.append(sysMsg) - - // Announce channel creation in public chat (delay to ensure proper context) - DispatchQueue.main.asyncAfter(deadline: .now() + 0.2) { [weak self] in - guard let self = self else { return } - // Store current channel temporarily - let previousChannel = self.currentChannel - self.currentChannel = nil // Ensure we're in public chat - - // Send announcement - let announcement = "created channel \(channelTag)" - self.sendMessage(announcement) - - // Restore channel context - self.currentChannel = previousChannel - } - } - - // Add ourselves as a member - if channelMembers[channelTag] == nil { - channelMembers[channelTag] = Set() - } - channelMembers[channelTag]?.insert(meshService.myPeerID) - - // If password protected, also add any connected peers who might be in the channel - // They'll be properly verified when they send messages - if passwordProtectedChannels.contains(channelTag) { - for peerID in connectedPeers { - channelMembers[channelTag]?.insert(peerID) - } - } - - // Switch to the channel - currentChannel = channelTag - selectedPrivateChatPeer = nil // Exit private chat if in one - - // Clear unread count for this channel - unreadChannelMessages[channelTag] = 0 - - // Initialize channel messages if needed - if channelMessages[channelTag] == nil { - channelMessages[channelTag] = [] - } - - // Hide password prompt if it was showing - showPasswordPrompt = false - passwordPromptChannel = nil - - // If this is a password protected channel, trigger verification - if passwordProtectedChannels.contains(channelTag) && channelKeys[channelTag] != nil { - // Send verification request after a short delay to allow peers to see us join - DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) { [weak self] in - self?.sendChannelKeyVerificationRequest(for: channelTag) - } - } - - return true - } - - func leaveChannel(_ channel: String) { - joinedChannels.remove(channel) - saveJoinedChannels() - - // Send leave notification to other peers - meshService.sendChannelLeaveNotification(channel) - - // If we're currently in this channel, exit to main chat - if currentChannel == channel { - currentChannel = nil - } - - // Clean up channel data - unreadChannelMessages.removeValue(forKey: channel) - channelMessages.removeValue(forKey: channel) - channelMembers.removeValue(forKey: channel) - channelKeys.removeValue(forKey: channel) - channelPasswords.removeValue(forKey: channel) - // Delete password from Keychain - _ = KeychainManager.shared.deleteChannelPassword(for: channel) - } - - // Password management - func setChannelPassword(_ password: String, for channel: String) { - guard joinedChannels.contains(channel) else { return } - - // Check if channel already has a creator - let myFingerprint = getMyFingerprint() - if let existingCreator = channelCreators[channel], - existingCreator != meshService.myPeerID && existingCreator != myFingerprint { - return - } - - // If channel is already password protected by someone else, we can't claim it - if passwordProtectedChannels.contains(channel) && - channelCreators[channel] != meshService.myPeerID && channelCreators[channel] != myFingerprint { - return - } - - // Claim creator role if not set and channel is not already protected - if channelCreators[channel] == nil && !passwordProtectedChannels.contains(channel) { - if myFingerprint != "Unknown" { - channelCreators[channel] = myFingerprint - // Set creator to fingerprint - } else { - channelCreators[channel] = meshService.myPeerID - - // Try to update to fingerprint after a delay - DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) { [weak self] in - if let self = self { - let updatedFingerprint = self.getMyFingerprint() - if updatedFingerprint != "Unknown" && self.channelCreators[channel] == self.meshService.myPeerID { - self.channelCreators[channel] = updatedFingerprint - // Updated creator to fingerprint - self.saveChannelData() - } - } - } - } - saveChannelData() - } - - // Derive encryption key from password - let key = deriveChannelKey(from: password, channelName: channel) - channelKeys[channel] = key - channelPasswords[channel] = password - passwordProtectedChannels.insert(channel) - // Save password to Keychain - _ = KeychainManager.shared.saveChannelPassword(password, for: channel) - - // Compute and store key commitment for verification - let commitment = computeKeyCommitment(for: key) - channelKeyCommitments[channel] = commitment - - // Save channel data - saveChannelData() - - // Announce that this channel is now password protected with commitment - // Use fingerprint if available, otherwise peer ID - let creatorID = myFingerprint != "Unknown" ? myFingerprint : meshService.myPeerID - meshService.announcePasswordProtectedChannel(channel, creatorID: creatorID, keyCommitment: commitment) - - // Send an encrypted initialization message with metadata - let timestamp = ISO8601DateFormatter().string(from: Date()) - let metadata = [ - "type": "channel_init", - "channel": channel, - "creator": nickname, - "creatorID": meshService.myPeerID, - "timestamp": timestamp, - "version": "1.0" - ] - let jsonData = try? JSONSerialization.data(withJSONObject: metadata) - let metadataStr = jsonData?.base64EncodedString() ?? "" - - let initMessage = "🔐 Channel \(channel) initialized | Protected channel created by \(nickname) | Metadata: \(metadataStr)" - meshService.sendEncryptedChannelMessage(initMessage, mentions: [], channel: channel, channelKey: key) - - } - - func removeChannelPassword(for channel: String) { - // Only channel creator can remove password - guard channelCreators[channel] == meshService.myPeerID else { - return - } - - channelKeys.removeValue(forKey: channel) - channelPasswords.removeValue(forKey: channel) - channelKeyCommitments.removeValue(forKey: channel) - passwordProtectedChannels.remove(channel) - // Delete password from Keychain - _ = KeychainManager.shared.deleteChannelPassword(for: channel) - - // Save channel data - saveChannelData() - - // Announce that this channel is no longer password protected - meshService.announcePasswordProtectedChannel(channel, isProtected: false, creatorID: meshService.myPeerID) - - } - - // Transfer channel ownership to another user - func transferChannelOwnership(to nickname: String) { - guard let currentChannel = currentChannel else { - let msg = BitchatMessage( - sender: "system", - content: "you must be in a channel to transfer ownership.", - timestamp: Date(), - isRelay: false - ) - messages.append(msg) - return - } - - // Check if current user is the owner using fingerprint - guard isChannelOwner(currentChannel) else { - let msg = BitchatMessage( - sender: "system", - content: "only the channel owner can transfer ownership.", - timestamp: Date(), - isRelay: false - ) - messages.append(msg) - return - } - - // Remove @ prefix if present - let targetNick = nickname.hasPrefix("@") ? String(nickname.dropFirst()) : nickname - - // Find peer ID for the nickname - guard let targetPeerID = getPeerIDForNickname(targetNick) else { - let msg = BitchatMessage( - sender: "system", - content: "user \(targetNick) not found. they must be online to receive ownership.", - timestamp: Date(), - isRelay: false - ) - messages.append(msg) - return - } - - // Get the fingerprint of the target peer - guard let targetFingerprint = getFingerprint(for: targetPeerID), targetFingerprint != "Unknown" else { - let msg = BitchatMessage( - sender: "system", - content: "cannot transfer ownership: \(targetNick) does not have a verified identity.", - timestamp: Date(), - isRelay: false - ) - messages.append(msg) - return - } - - // Update ownership to target's fingerprint - channelCreators[currentChannel] = targetFingerprint - saveChannelData() - - // Broadcast updated channel metadata with new owner - let metadata = ChannelMetadata( - channel: currentChannel, - creatorID: targetPeerID, - creatorFingerprint: targetFingerprint, - isPasswordProtected: passwordProtectedChannels.contains(currentChannel), - keyCommitment: channelKeyCommitments[currentChannel] - ) - meshService.sendChannelMetadata(metadata) - - // Also announce if password protected - if passwordProtectedChannels.contains(currentChannel) { - let commitment = channelKeyCommitments[currentChannel] - meshService.announcePasswordProtectedChannel(currentChannel, creatorID: targetFingerprint, keyCommitment: commitment) - } - - // Send notification message - let transferMsg = BitchatMessage( - sender: "system", - content: "channel ownership transferred from \(self.nickname) to \(targetNick).", - timestamp: Date(), - isRelay: false, - channel: currentChannel - ) - messages.append(transferMsg) - - // Send encrypted notification if channel is protected - if let channelKey = channelKeys[currentChannel] { - let notifyMsg = "🔑 Channel ownership transferred to \(targetNick) by \(self.nickname)" - meshService.sendEncryptedChannelMessage(notifyMsg, mentions: [targetNick], channel: currentChannel, channelKey: channelKey) - } else { - meshService.sendMessage(transferMsg.content, mentions: [targetNick]) - } - - } - - // Change password for current channel - func changeChannelPassword(to newPassword: String) { - guard let currentChannel = currentChannel else { - let msg = BitchatMessage( - sender: "system", - content: "you must be in a channel to change its password.", - timestamp: Date(), - isRelay: false - ) - messages.append(msg) - return - } - - // Check if current user is the owner using fingerprint - guard isChannelOwner(currentChannel) else { - let msg = BitchatMessage( - sender: "system", - content: "only the channel owner can change the password.", - timestamp: Date(), - isRelay: false - ) - messages.append(msg) - return - } - - // Check if channel is currently password protected - guard passwordProtectedChannels.contains(currentChannel) else { - let msg = BitchatMessage( - sender: "system", - content: "channel is not password protected. use the lock button to set a password.", - timestamp: Date(), - isRelay: false - ) - messages.append(msg) - return - } - - // Store old key for re-encryption - let oldKey = channelKeys[currentChannel] - - // Derive new encryption key from new password - let newKey = deriveChannelKey(from: newPassword, channelName: currentChannel) - channelKeys[currentChannel] = newKey - channelPasswords[currentChannel] = newPassword - // Update password in Keychain - _ = KeychainManager.shared.saveChannelPassword(newPassword, for: currentChannel) - - // Compute new key commitment - let newCommitment = computeKeyCommitment(for: newKey) - channelKeyCommitments[currentChannel] = newCommitment - - // Save channel data - saveChannelData() - - // Send password change notification with old key - if let oldKey = oldKey { - let changeNotice = "🔐 Password changed by channel owner. Please update your password." - meshService.sendEncryptedChannelMessage(changeNotice, mentions: [], channel: currentChannel, channelKey: oldKey) - } - - // Send new initialization message with new key - let timestamp = ISO8601DateFormatter().string(from: Date()) - let changeMetadata = [ - "type": "password_change", - "channel": currentChannel, - "changer": nickname, - "changerID": meshService.myPeerID, - "timestamp": timestamp, - "version": "1.0" - ] - let jsonData = try? JSONSerialization.data(withJSONObject: changeMetadata) - let metadataStr = jsonData?.base64EncodedString() ?? "" - - let initMessage = "🔑 Password changed | Channel \(currentChannel) password updated by \(nickname) | Metadata: \(metadataStr)" - meshService.sendEncryptedChannelMessage(initMessage, mentions: [], channel: currentChannel, channelKey: newKey) - - // Announce the new commitment with fingerprint - let myFingerprint = getMyFingerprint() - meshService.announcePasswordProtectedChannel(currentChannel, creatorID: myFingerprint, keyCommitment: newCommitment) - - // Broadcast updated channel metadata - let metadata = ChannelMetadata( - channel: currentChannel, - creatorID: meshService.myPeerID, - creatorFingerprint: myFingerprint, - isPasswordProtected: true, - keyCommitment: newCommitment - ) - meshService.sendChannelMetadata(metadata) - - // Send new password to connected channel members via Noise - distributeChannelPasswordUpdate(channel: currentChannel, newPassword: newPassword, newCommitment: newCommitment) - - // Add local success message - let successMsg = BitchatMessage( - sender: "system", - content: "password changed successfully. other users will need to re-enter the new password.", - timestamp: Date(), - isRelay: false - ) - messages.append(successMsg) - - } - - private func distributeChannelPasswordUpdate(channel: String, newPassword: String, newCommitment: String) { - // Get channel members - let members = getChannelMembers(channel) - - // Filter to only connected members with Noise sessions - let noiseService = meshService.getNoiseService() - let connectedMembersWithNoise = members.filter { peerID in - peerID != meshService.myPeerID && - connectedPeers.contains(peerID) && - noiseService.hasEstablishedSession(with: peerID) - } - - // Send password update to each connected member - for peerID in connectedMembersWithNoise { - meshService.sendChannelPasswordUpdate(newPassword, channel: channel, newCommitment: newCommitment, to: peerID) - } - - if !connectedMembersWithNoise.isEmpty { - // Sent password update to connected members with Noise sessions - - // Update the success message to indicate distribution - DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) { [weak self] in - let distributeMsg = BitchatMessage( - sender: "system", - content: "password update sent to \(connectedMembersWithNoise.count) online members via secure channel.", - timestamp: Date(), - isRelay: false - ) - self?.messages.append(distributeMsg) - } - } - } - - // Compute SHA256 hash of the derived key for public verification - internal func computeKeyCommitment(for key: SymmetricKey) -> String { - let keyData = key.withUnsafeBytes { Data($0) } - let hash = SHA256.hash(data: keyData) - return hash.compactMap { String(format: "%02x", $0) }.joined() - } - - internal func deriveChannelKey(from password: String, channelName: String) -> SymmetricKey { - // Get creator fingerprint for this channel - let creatorFingerprint = channelCreators[channelName] - - // Use PBKDF2 with channel name + creator fingerprint as salt - var saltComponents = "bitchat-channel-\(channelName)" - if let fingerprint = creatorFingerprint { - saltComponents += "-\(fingerprint)" - } - let salt = saltComponents.data(using: .utf8)! - - // Increased iterations for better security (OWASP recommends 210,000 for PBKDF2-SHA256) - let keyData = pbkdf2(password: password, salt: salt, iterations: 210000, keyLength: 32) - return SymmetricKey(data: keyData) - } - - private func pbkdf2(password: String, salt: Data, iterations: Int, keyLength: Int) -> Data { - var derivedKey = Data(count: keyLength) - let passwordData = password.data(using: .utf8)! - - _ = derivedKey.withUnsafeMutableBytes { derivedKeyBytes in - salt.withUnsafeBytes { saltBytes in - passwordData.withUnsafeBytes { passwordBytes in - CCKeyDerivationPBKDF( - CCPBKDFAlgorithm(kCCPBKDF2), - passwordBytes.baseAddress, passwordData.count, - saltBytes.baseAddress, salt.count, - CCPseudoRandomAlgorithm(kCCPRFHmacAlgSHA256), - UInt32(iterations), - derivedKeyBytes.baseAddress, keyLength - ) - } - } - } - - return derivedKey - } - - func switchToChannel(_ channel: String?) { - // Check if channel needs password - if let channel = channel, passwordProtectedChannels.contains(channel) && channelKeys[channel] == nil { - // Need password, show prompt instead - passwordPromptChannel = channel - showPasswordPrompt = true - return - } - - currentChannel = channel - selectedPrivateChatPeer = nil // Exit private chat - - // Clear unread count for this channel - if let channel = channel { - unreadChannelMessages[channel] = 0 - } - } - - private func sendChannelKeyVerificationRequest(for channel: String) { - - // Get channel members who might have the key - let members = getChannelMembers(channel) - - // Filter to only connected members - let connectedMembers = members.filter { connectedPeers.contains($0) && $0 != meshService.myPeerID } - - guard !connectedMembers.isEmpty else { - channelVerificationStatus[channel] = .unverified - return - } - - // Compute our key commitment - guard let key = channelKeys[channel] else { return } - let commitment = computeKeyCommitment(for: key) - - // Create verification request - let request = ChannelKeyVerifyRequest( - channel: channel, - requesterID: meshService.myPeerID, - keyCommitment: commitment - ) - - // Send to all connected channel members - meshService.sendChannelKeyVerifyRequest(request, to: connectedMembers) - - // Update verification status - channelVerificationStatus[channel] = .verifying - // Set verification status to verifying - - // Set timeout for verification - DispatchQueue.main.asyncAfter(deadline: .now() + 5.0) { [weak self] in - guard let self = self else { return } - - // Check if still verifying - if self.channelVerificationStatus[channel] == .verifying { - // No response received, assume unverified - // Verification timeout - self.channelVerificationStatus[channel] = .unverified - - let timeoutMsg = BitchatMessage( - sender: "system", - content: "no response from channel members. password may be correct but cannot verify at this time.", - timestamp: Date(), - isRelay: false - ) - self.messages.append(timeoutMsg) - } - } - - } - - private func getChannelMembers(_ channel: String) -> [String] { - // Return all peers who have sent messages to this channel - return Array(channelMembers[channel] ?? []) - } - - // Check if current user owns the channel (handles both legacy peer ID and new fingerprint) - func isChannelOwner(_ channel: String) -> Bool { - guard let creator = channelCreators[channel] else { - return false - } - - let myFingerprint = getMyFingerprint() - - - // Only check against persistent fingerprint - if myFingerprint != "Unknown" && creator == myFingerprint { - return true - } - - return false - } - - // Migrate channel ownership from ephemeral peer IDs to persistent fingerprints - private func cleanupLegacyChannelOwnership() { - // Simple cleanup: only keep channels with fingerprint ownership - let myFingerprint = getMyFingerprint() - guard myFingerprint != "Unknown" else { return } - - var cleaned = false - for (channel, creator) in channelCreators { - // Remove any channel with 8-char creator ID (legacy) - if creator.count == 8 { - // Removing legacy ownership - channelCreators.removeValue(forKey: channel) - cleaned = true - } - } - - if cleaned { - saveChannelData() - } - } - - - func getChannelMessages(_ channel: String) -> [BitchatMessage] { - return channelMessages[channel] ?? [] - } - - func parseChannels(from content: String) -> Set { - let pattern = "#([a-zA-Z0-9_]+)" - let regex = try? NSRegularExpression(pattern: pattern, options: []) - let matches = regex?.matches(in: content, options: [], range: NSRange(location: 0, length: content.count)) ?? [] - - var channels = Set() - for match in matches { - if let range = Range(match.range(at: 0), in: content) { - let channel = String(content[range]) - channels.insert(channel) - } - } - - return channels - } func toggleFavorite(peerID: String) { // First try to get fingerprint from mesh service (supports peer ID rotation) @@ -1250,19 +356,8 @@ class ChatViewModel: ObservableObject { } else { } } else { - // Parse mentions and channels from the content + // Parse mentions from the content let mentions = parseMentions(from: content) - let channels = parseChannels(from: content) - - // Auto-join any channels mentioned in the message - for channel in channels { - if !joinedChannels.contains(channel) { - let _ = joinChannel(channel) - } - } - - // Determine which channel this message belongs to - let messageChannel = currentChannel // Use current channel if we're in one // Add message to local display let message = BitchatMessage( @@ -1275,41 +370,13 @@ class ChatViewModel: ObservableObject { recipientNickname: nil, senderPeerID: meshService.myPeerID, mentions: mentions.isEmpty ? nil : mentions, - channel: messageChannel ) - if let channel = messageChannel { - // Add to channel messages - if channelMessages[channel] == nil { - channelMessages[channel] = [] - } - channelMessages[channel]?.append(message) - - // Track ourselves as a channel member - if channelMembers[channel] == nil { - channelMembers[channel] = Set() - } - channelMembers[channel]?.insert(meshService.myPeerID) - } else { - // Add to main messages - messages.append(message) - } + // Add to main messages + messages.append(message) - // Only auto-join channels if we're sending TO that channel - if let messageChannel = messageChannel { - if !joinedChannels.contains(messageChannel) { - let _ = joinChannel(messageChannel) - } - } - - // Check if channel is password protected and encrypt if needed - if let channel = messageChannel, channelKeys[channel] != nil { - // Send encrypted channel message - meshService.sendEncryptedChannelMessage(content, mentions: mentions, channel: channel, channelKey: channelKeys[channel]!) - } else { - // Send via mesh with mentions and channel (unencrypted) - meshService.sendMessage(content, mentions: mentions, channel: messageChannel) - } + // Send via mesh with mentions + meshService.sendMessage(content, mentions: mentions) } } @@ -1495,33 +562,9 @@ class ChatViewModel: ObservableObject { } privateChats[peerID]?.append(localNotification) - } else if let channel = currentChannel { - // In a channel - send to channel - // Check if channel is password protected and encrypt if needed - if let channelKey = channelKeys[channel] { - meshService.sendEncryptedChannelMessage(screenshotMessage, mentions: [], channel: channel, channelKey: channelKey) - } else { - meshService.sendMessage(screenshotMessage, mentions: [], channel: channel) - } - - // Show local notification immediately as system message - let localNotification = BitchatMessage( - sender: "system", - content: "you took a screenshot", - timestamp: Date(), - isRelay: false, - originalSender: nil, - isPrivate: false, - channel: channel - ) - if channelMessages[channel] == nil { - channelMessages[channel] = [] - } - channelMessages[channel]?.append(localNotification) - } else { // In public chat - send to everyone - meshService.sendMessage(screenshotMessage, mentions: [], channel: nil) + meshService.sendMessage(screenshotMessage, mentions: []) // Show local notification immediately as system message let localNotification = BitchatMessage( @@ -1535,8 +578,6 @@ class ChatViewModel: ObservableObject { } @objc private func appWillResignActive() { - // Save all channel data - saveChannelData() userDefaults.synchronize() } @@ -1545,8 +586,6 @@ class ChatViewModel: ObservableObject { // Verify identity key is still there _ = KeychainManager.shared.verifyIdentityKeyExists() - // Save all channel data - saveChannelData() userDefaults.synchronize() // Verify identity key after save @@ -1554,8 +593,6 @@ class ChatViewModel: ObservableObject { } @objc private func appWillTerminate() { - // Save all channel data - saveChannelData() userDefaults.synchronize() } @@ -1664,20 +701,6 @@ class ChatViewModel: ObservableObject { privateChats.removeAll() unreadPrivateMessages.removeAll() - // Clear all channel data - joinedChannels.removeAll() - currentChannel = nil - channelMessages.removeAll() - unreadChannelMessages.removeAll() - channelMembers.removeAll() - channelPasswords.removeAll() - channelKeys.removeAll() - passwordProtectedChannels.removeAll() - channelCreators.removeAll() - channelKeyCommitments.removeAll() - showPasswordPrompt = false - passwordPromptChannel = nil - // First run aggressive cleanup to get rid of all legacy items _ = KeychainManager.shared.aggressiveCleanupLegacyItems() @@ -1695,11 +718,6 @@ class ChatViewModel: ObservableObject { // Clear message retry queue MessageRetryService.shared.clearRetryQueue() - // Clear persisted channel data from UserDefaults - userDefaults.removeObject(forKey: joinedChannelsKey) - userDefaults.removeObject(forKey: passwordProtectedChannelsKey) - userDefaults.removeObject(forKey: channelCreatorsKey) - userDefaults.removeObject(forKey: channelKeyCommitmentsKey) // Reset nickname to anonymous nickname = "anon\(Int.random(in: 1000...9999))" @@ -2310,11 +1328,6 @@ class ChatViewModel: ObservableObject { } else { self?.peerEncryptionStatus[peerID] = .noiseSecured } - - // Log for testing - #if DEBUG - NoiseTestingHelper.shared.logNoiseEvent("Peer authenticated", details: "PeerID: \(peerID), Fingerprint: \(fingerprint)") - #endif } } @@ -2322,174 +1335,18 @@ class ChatViewModel: ObservableObject { noiseService.onHandshakeRequired = { [weak self] peerID in DispatchQueue.main.async { self?.peerEncryptionStatus[peerID] = .noiseHandshaking - - #if DEBUG - NoiseTestingHelper.shared.logNoiseEvent("Handshake required", details: "PeerID: \(peerID)") - #endif } } } } extension ChatViewModel: BitchatDelegate { - func didReceiveChannelLeave(_ channel: String, from peerID: String) { - // Remove peer from channel members - if channelMembers[channel] != nil { - channelMembers[channel]?.remove(peerID) - - // Force UI update - objectWillChange.send() - } - } - - func didReceivePasswordProtectedChannelAnnouncement(_ channel: String, isProtected: Bool, creatorID: String?, keyCommitment: String?) { - let wasAlreadyProtected = passwordProtectedChannels.contains(channel) - - if isProtected { - passwordProtectedChannels.insert(channel) - if let creator = creatorID { - // Don't overwrite our own ownership - let myFingerprint = getMyFingerprint() - if channelCreators[channel] == nil || - (channelCreators[channel] != meshService.myPeerID && channelCreators[channel] != myFingerprint) { - channelCreators[channel] = creator - // Received creator announcement - } - } - - // Store the key commitment if provided - if let commitment = keyCommitment { - channelKeyCommitments[channel] = commitment - } - - // If we just learned this channel is protected and we're in it without a key, prompt for password - if !wasAlreadyProtected && joinedChannels.contains(channel) && channelKeys[channel] == nil { - - // Add system message - let systemMessage = BitchatMessage( - sender: "system", - content: "channel \(channel) is password protected. you need the password to participate.", - timestamp: Date(), - isRelay: false - ) - messages.append(systemMessage) - - // If currently viewing this channel, show password prompt - if currentChannel == channel { - passwordPromptChannel = channel - showPasswordPrompt = true - } - } - } else { - passwordProtectedChannels.remove(channel) - // If we're in this channel and it's no longer protected, clear the key - channelKeys.removeValue(forKey: channel) - channelPasswords.removeValue(forKey: channel) - channelKeyCommitments.removeValue(forKey: channel) - } - - // Save updated channel data - saveChannelData() - - } - - func decryptChannelMessage(_ encryptedContent: Data, channel: String, testKey: SymmetricKey? = nil) -> String? { - let key = testKey ?? channelKeys[channel] - guard let key = key else { - return nil - } - - // Debug logging removed - - do { - let sealedBox = try AES.GCM.SealedBox(combined: encryptedContent) - let decryptedData = try AES.GCM.open(sealedBox, using: key) - let decryptedString = String(data: decryptedData, encoding: .utf8) - return decryptedString - } catch { - return nil - } - } - - func didReceiveChannelRetentionAnnouncement(_ channel: String, enabled: Bool, creatorID: String?) { - // This feature has been removed - } private func handleCommand(_ command: String) { let parts = command.split(separator: " ") guard let cmd = parts.first else { return } switch cmd { - case "/j", "/join": - if parts.count > 1 { - let channelName = String(parts[1]) - // Ensure channel name starts with # - let channel = channelName.hasPrefix("#") ? channelName : "#\(channelName)" - - // Validate channel name - let cleanedName = channel.dropFirst() - let isValidName = !cleanedName.isEmpty && cleanedName.allSatisfy { $0.isLetter || $0.isNumber || $0 == "_" } - - if !isValidName { - let systemMessage = BitchatMessage( - sender: "system", - content: "invalid channel name. use only letters, numbers, and underscores.", - timestamp: Date(), - isRelay: false - ) - messages.append(systemMessage) - } else { - let wasAlreadyJoined = joinedChannels.contains(channel) - let wasPasswordProtected = passwordProtectedChannels.contains(channel) - let hadCreator = channelCreators[channel] != nil - - let success = joinChannel(channel) - - if success { - if !wasAlreadyJoined { - var message = "joined channel \(channel)" - if !hadCreator && !wasPasswordProtected { - message += " (created new channel - you are the owner)" - } - let systemMessage = BitchatMessage( - sender: "system", - content: message, - timestamp: Date(), - isRelay: false - ) - messages.append(systemMessage) - } else { - // Already in channel, just switched to it - let systemMessage = BitchatMessage( - sender: "system", - content: "switched to channel \(channel)", - timestamp: Date(), - isRelay: false - ) - messages.append(systemMessage) - } - } - // If not successful, password prompt will be shown - } - } else { - // Show usage hint - let systemMessage = BitchatMessage( - sender: "system", - content: "usage: /j #channelname", - timestamp: Date(), - isRelay: false - ) - messages.append(systemMessage) - } - case "/create": - // /create is now just an alias for /join - let systemMessage = BitchatMessage( - sender: "system", - content: "use /join #channelname to join or create a channel", - timestamp: Date(), - isRelay: false - ) - messages.append(systemMessage) case "/m", "/msg": if parts.count > 1 { let targetName = String(parts[1]) @@ -2531,60 +1388,6 @@ extension ChatViewModel: BitchatDelegate { ) messages.append(systemMessage) } - case "/channels": - // Discover all channels (both joined and not joined) - var allChannels: Set = Set() - - // Add joined channels - allChannels.formUnion(joinedChannels) - - // Find channels from messages we've seen - for msg in messages { - if let channel = msg.channel { - allChannels.insert(channel) - } - } - - // Also check channel messages we've cached - for (channel, _) in channelMessages { - allChannels.insert(channel) - } - - // Add password protected channels we know about - allChannels.formUnion(passwordProtectedChannels) - - if allChannels.isEmpty { - let systemMessage = BitchatMessage( - sender: "system", - content: "no channels discovered yet. channels appear as people use them.", - timestamp: Date(), - isRelay: false - ) - messages.append(systemMessage) - } else { - let channelList = allChannels.sorted().map { channel in - var status = "" - if joinedChannels.contains(channel) { - status += " ✓" - } - if passwordProtectedChannels.contains(channel) { - status += " 🔒" - } - let myFingerprint = getMyFingerprint() - if channelCreators[channel] == meshService.myPeerID || channelCreators[channel] == myFingerprint { - status += " (owner)" - } - return "\(channel)\(status)" - }.joined(separator: "\n") - - let systemMessage = BitchatMessage( - sender: "system", - content: "discovered channels:\n\(channelList)\n\n✓ = joined, 🔒 = password protected, 📌 = retention enabled", - timestamp: Date(), - isRelay: false - ) - messages.append(systemMessage) - } case "/w": let peerNicknames = meshService.getPeerNicknames() if connectedPeers.isEmpty { @@ -2608,89 +1411,15 @@ extension ChatViewModel: BitchatDelegate { ) messages.append(systemMessage) } - case "/transfer": - // Transfer channel ownership - let parts = command.split(separator: " ", maxSplits: 1).map(String.init) - if parts.count < 2 { - let systemMessage = BitchatMessage( - sender: "system", - content: "usage: /transfer @nickname", - timestamp: Date(), - isRelay: false - ) - messages.append(systemMessage) - } else { - transferChannelOwnership(to: parts[1]) - } - case "/pass": - // Change channel password (only available in channels) - guard currentChannel != nil else { - let systemMessage = BitchatMessage( - sender: "system", - content: "you must be in a channel to use /pass.", - timestamp: Date(), - isRelay: false - ) - messages.append(systemMessage) - break - } - let parts = command.split(separator: " ", maxSplits: 1).map(String.init) - if parts.count < 2 { - let systemMessage = BitchatMessage( - sender: "system", - content: "usage: /pass ", - timestamp: Date(), - isRelay: false - ) - messages.append(systemMessage) - } else { - changeChannelPassword(to: parts[1]) - } case "/clear": // Clear messages based on current context - if let channel = currentChannel { - // Clear channel messages - channelMessages[channel]?.removeAll() - } else if let peerID = selectedPrivateChatPeer { + if let peerID = selectedPrivateChatPeer { // Clear private chat privateChats[peerID]?.removeAll() } else { // Clear main messages messages.removeAll() } - case "/debug": - // Debug command to check ownership info - if let channel = currentChannel { - let myPeerID = meshService.myPeerID - let myFingerprint = getMyFingerprint() - let creator = channelCreators[channel] ?? "unknown" - let isOwner = isChannelOwner(channel) - - let debugInfo = """ - 🐛 Debug Info for \(channel): - • Channel creator: \(creator) - • My peer ID: \(myPeerID) - • My fingerprint: \(myFingerprint) - • Am I owner? \(isOwner ? "YES" : "NO") - • All creators: \(channelCreators) - """ - - let debugMsg = BitchatMessage( - sender: "system", - content: debugInfo, - timestamp: Date(), - isRelay: false - ) - messages.append(debugMsg) - } else { - let debugMsg = BitchatMessage( - sender: "system", - content: "use /debug in a channel to see ownership info", - timestamp: Date(), - isRelay: false - ) - messages.append(debugMsg) - } case "/hug": if parts.count > 1 { let targetName = String(parts[1]) @@ -2707,20 +1436,12 @@ extension ChatViewModel: BitchatDelegate { isRelay: false, isPrivate: false, recipientNickname: nickname, - senderPeerID: meshService.myPeerID, - channel: currentChannel + senderPeerID: meshService.myPeerID ) // Send as a regular message but it will be displayed as system message due to content let hugContent = "* 🫂 \(self.nickname) hugs \(nickname) *" - if let channel = currentChannel { - meshService.sendMessage(hugContent, channel: channel) - // Add to channel messages - if channelMessages[channel] == nil { - channelMessages[channel] = [] - } - channelMessages[channel]?.append(hugMessage) - } else if selectedPrivateChatPeer != nil { + if selectedPrivateChatPeer != nil { // In private chat, send as private message if let peerNickname = meshService.getPeerNicknames()[targetPeerID] { meshService.sendPrivateMessage("* 🫂 \(self.nickname) hugs you *", to: targetPeerID, recipientNickname: peerNickname) @@ -2765,20 +1486,12 @@ extension ChatViewModel: BitchatDelegate { isRelay: false, isPrivate: false, recipientNickname: nickname, - senderPeerID: meshService.myPeerID, - channel: currentChannel + senderPeerID: meshService.myPeerID ) // Send as a regular message but it will be displayed as system message due to content let slapContent = "* 🐟 \(self.nickname) slaps \(nickname) around a bit with a large trout *" - if let channel = currentChannel { - meshService.sendMessage(slapContent, channel: channel) - // Add to channel messages - if channelMessages[channel] == nil { - channelMessages[channel] = [] - } - channelMessages[channel]?.append(slapMessage) - } else if selectedPrivateChatPeer != nil { + if selectedPrivateChatPeer != nil { // In private chat, send as private message if let peerNickname = meshService.getPeerNicknames()[targetPeerID] { meshService.sendPrivateMessage("* 🐟 \(self.nickname) slaps you around a bit with a large trout *", to: targetPeerID, recipientNickname: peerNickname) @@ -2985,13 +1698,6 @@ extension ChatViewModel: BitchatDelegate { func didReceiveMessage(_ message: BitchatMessage) { - // Track sender as a channel member if this is a channel message - if let channel = message.channel, let senderPeerID = message.senderPeerID { - if channelMembers[channel] == nil { - channelMembers[channel] = Set() - } - channelMembers[channel]?.insert(senderPeerID) - } // Check if sender is blocked (for both private and public messages) if let senderPeerID = message.senderPeerID { @@ -3079,7 +1785,6 @@ extension ChatViewModel: BitchatDelegate { recipientNickname: messageToStore.recipientNickname, senderPeerID: messageToStore.senderPeerID, mentions: messageToStore.mentions, - channel: messageToStore.channel, deliveryStatus: messageToStore.deliveryStatus ) } @@ -3130,216 +1835,6 @@ extension ChatViewModel: BitchatDelegate { } else if message.sender == nickname { // Our own message that was echoed back - ignore it since we already added it locally } - } else if let channel = message.channel { - // Channel message - - // Only process channel messages if we've joined this channel - if joinedChannels.contains(channel) { - // Prepare the message to add (might be updated if decryption succeeds) - var messageToAdd = message - - // Check if this is an encrypted message and we don't have the key - if message.isEncrypted && channelKeys[channel] == nil { - // Mark channel as password protected if not already - let wasNewlyDiscovered = !passwordProtectedChannels.contains(channel) - if wasNewlyDiscovered { - passwordProtectedChannels.insert(channel) - saveChannelData() - - // Add a system message to indicate the channel is password protected (only once) - let systemMessage = BitchatMessage( - sender: "system", - content: "channel \(channel) is password protected. you need the password to read messages.", - timestamp: Date(), - isRelay: false - ) - if channelMessages[channel] == nil { - channelMessages[channel] = [] - } - channelMessages[channel]?.append(systemMessage) - } - - // If we're currently viewing this channel, prompt for password - if currentChannel == channel { - passwordPromptChannel = channel - showPasswordPrompt = true - } - } else if message.isEncrypted && channelKeys[channel] != nil && message.content == "[Encrypted message - password required]" { - // We have a key but the message shows as encrypted - try to decrypt it again - - // Check if this is the first encrypted message in the channel (password verification opportunity) - let isFirstEncryptedMessage = channelMessages[channel]?.filter { $0.isEncrypted }.isEmpty ?? true - - if let encryptedData = message.encryptedContent { - if let decryptedContent = decryptChannelMessage(encryptedData, channel: channel) { - // Successfully decrypted - update the message content - - if isFirstEncryptedMessage { - - // Add success message - let verifiedMsg = BitchatMessage( - sender: "system", - content: "password verified successfully for channel \(channel).", - timestamp: Date(), - isRelay: false - ) - messages.append(verifiedMsg) - } - - // Create a new message with decrypted content - let decryptedMessage = BitchatMessage( - sender: message.sender, - content: decryptedContent, - timestamp: message.timestamp, - isRelay: message.isRelay, - originalSender: message.originalSender, - isPrivate: message.isPrivate, - recipientNickname: message.recipientNickname, - senderPeerID: message.senderPeerID, - mentions: message.mentions, - channel: message.channel, - encryptedContent: message.encryptedContent, - isEncrypted: message.isEncrypted - ) - - // Update the message we'll add - messageToAdd = decryptedMessage - } else { - // Decryption really failed - wrong password - - // Clear the wrong password - channelKeys.removeValue(forKey: channel) - channelPasswords.removeValue(forKey: channel) - - // If this was the first encrypted message, we need to kick the user out - if isFirstEncryptedMessage { - - // Leave the channel - joinedChannels.remove(channel) - saveJoinedChannels() - - // Clear channel data - channelMessages.removeValue(forKey: channel) - channelMembers.removeValue(forKey: channel) - unreadChannelMessages.removeValue(forKey: channel) - - // If we're currently in this channel, exit to main - if currentChannel == channel { - currentChannel = nil - } - - // Add error message - let errorMsg = BitchatMessage( - sender: "system", - content: "wrong password for channel \(channel). you have been removed from the channel.", - timestamp: Date(), - isRelay: false - ) - messages.append(errorMsg) - - // Don't show password prompt - user needs to rejoin - return - } - - // Add system message for subsequent failures - let systemMessage = BitchatMessage( - sender: "system", - content: "wrong password for channel \(channel). please enter the correct password.", - timestamp: Date(), - isRelay: false - ) - messages.append(systemMessage) - - // Show password prompt again - if currentChannel == channel { - passwordPromptChannel = channel - showPasswordPrompt = true - } - } - } - } - - // Check if this is an action that should be converted to system message - let isActionMessage = messageToAdd.content.hasPrefix("* ") && messageToAdd.content.hasSuffix(" *") && - (messageToAdd.content.contains("🫂") || messageToAdd.content.contains("🐟") || - messageToAdd.content.contains("took a screenshot")) - - let finalMessage: BitchatMessage - if isActionMessage { - // Convert to system message - finalMessage = BitchatMessage( - sender: "system", - content: String(messageToAdd.content.dropFirst(2).dropLast(2)), // Remove * * wrapper - timestamp: messageToAdd.timestamp, - isRelay: messageToAdd.isRelay, - originalSender: messageToAdd.originalSender, - isPrivate: false, - recipientNickname: messageToAdd.recipientNickname, - senderPeerID: messageToAdd.senderPeerID, - mentions: messageToAdd.mentions, - channel: messageToAdd.channel - ) - } else { - finalMessage = messageToAdd - } - - // Add to channel messages (using potentially decrypted version) - if channelMessages[channel] == nil { - channelMessages[channel] = [] - } - - // Check if this is our own message being echoed back - if finalMessage.sender != nickname && finalMessage.sender != "system" { - // Skip empty or whitespace-only messages - if !finalMessage.content.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty { - channelMessages[channel]?.append(finalMessage) - channelMessages[channel]?.sort { $0.timestamp < $1.timestamp } - } - } else if finalMessage.sender != "system" { - // Our own message - check if we already have it (by ID and content) - let messageExists = channelMessages[channel]?.contains { existingMsg in - // Check by ID first - if existingMsg.id == finalMessage.id { - return true - } - // Check by content and sender with time window (within 1 second) - if existingMsg.content == finalMessage.content && - existingMsg.sender == finalMessage.sender { - let timeDiff = abs(existingMsg.timestamp.timeIntervalSince(finalMessage.timestamp)) - return timeDiff < 1.0 - } - return false - } ?? false - if !messageExists { - // This is a message we sent from another device or it's missing locally - // Skip empty or whitespace-only messages - if !finalMessage.content.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty { - channelMessages[channel]?.append(finalMessage) - channelMessages[channel]?.sort { $0.timestamp < $1.timestamp } - } - } - } else { - // System message - always add - channelMessages[channel]?.append(finalMessage) - channelMessages[channel]?.sort { $0.timestamp < $1.timestamp } - } - - // Track channel members - only track the sender as a member - if channelMembers[channel] == nil { - channelMembers[channel] = Set() - } - if let senderPeerID = message.senderPeerID { - channelMembers[channel]?.insert(senderPeerID) - } else { - } - - // Update unread count if not currently viewing this channel and it's not our own message - if currentChannel != channel && finalMessage.sender != nickname { - unreadChannelMessages[channel] = (unreadChannelMessages[channel] ?? 0) + 1 - } - } else { - // We're not in this channel, ignore the message - } } else { // Regular public message (main chat) @@ -3360,8 +1855,7 @@ extension ChatViewModel: BitchatDelegate { isPrivate: false, recipientNickname: message.recipientNickname, senderPeerID: message.senderPeerID, - mentions: message.mentions, - channel: message.channel + mentions: message.mentions ) } else { finalMessage = message @@ -3561,15 +2055,6 @@ extension ChatViewModel: BitchatDelegate { // Update encryption status for all peers self.updateEncryptionStatusForPeers() - // Clean up channel members who disconnected - for (channel, memberIDs) in self.channelMembers { - let activeMembers = memberIDs.filter { memberID in - memberID == self.meshService.myPeerID || peers.contains(memberID) - } - if activeMembers != memberIDs { - self.channelMembers[channel] = activeMembers - } - } // Explicitly notify SwiftUI that the object has changed. self.objectWillChange.send() @@ -3683,170 +2168,7 @@ extension ChatViewModel: BitchatDelegate { self.objectWillChange.send() } - // Update in channel messages - for (channel, var channelMsgs) in channelMessages { - if let index = channelMsgs.firstIndex(where: { $0.id == messageID }) { - let currentStatus = channelMsgs[index].deliveryStatus - if !shouldSkipUpdate(currentStatus: currentStatus, newStatus: status) { - var updatedMessage = channelMsgs[index] - updatedMessage.deliveryStatus = status - channelMsgs[index] = updatedMessage - channelMessages[channel] = channelMsgs - - // Force UI update - DispatchQueue.main.async { [weak self] in - self?.objectWillChange.send() - } - } - } - } } - // MARK: - Channel Key Verification - - func didReceiveChannelKeyVerifyRequest(_ request: ChannelKeyVerifyRequest, from peerID: String) { - - // Check if we have the key for this channel - guard let myKey = channelKeys[request.channel] else { - // We don't have the key, can't verify - return - } - - // Compute our key commitment - let myCommitment = computeKeyCommitment(for: myKey) - - // Check if their commitment matches ours - let verified = (myCommitment == request.keyCommitment) - - // Send response - let response = ChannelKeyVerifyResponse( - channel: request.channel, - responderID: meshService.myPeerID, - verified: verified - ) - - meshService.sendChannelKeyVerifyResponse(response, to: peerID) - - // If they have the wrong key, they might need the new password - let myFingerprint = getMyFingerprint() - if !verified && (channelCreators[request.channel] == meshService.myPeerID || channelCreators[request.channel] == myFingerprint) { - // We're the owner and they have wrong key - could offer to send update - } - } - - func didReceiveChannelKeyVerifyResponse(_ response: ChannelKeyVerifyResponse, from peerID: String) { - - if response.verified { - // Our key was verified - we have the correct password - - // Update verification status - channelVerificationStatus[response.channel] = .verified - - // Mark channel as successfully joined - if joinedChannels.contains(response.channel) { - // Update UI to show successful verification - DispatchQueue.main.async { [weak self] in - self?.objectWillChange.send() - } - } - } else { - // Our key was rejected - we have the wrong password - - // Update verification status - channelVerificationStatus[response.channel] = .failed - - // Show error to user - let errorMsg = BitchatMessage( - sender: "system", - content: "incorrect password for \(response.channel). please check with channel members for the correct password.", - timestamp: Date(), - isRelay: false - ) - messages.append(errorMsg) - } - } - - func didReceiveChannelPasswordUpdate(_ update: ChannelPasswordUpdate, from peerID: String) { - // Use the fingerprint from the update message (more reliable than looking up by peer ID) - let senderFingerprint = update.ownerFingerprint - - // Verify sender is the channel owner by checking fingerprint - guard let channelOwnerFingerprint = channelCreators[update.channel], - channelOwnerFingerprint == senderFingerprint else { - // Security: Ignoring password update from non-owner - return - } - - // Extract the new password - let newPassword = String(data: update.encryptedPassword, encoding: .utf8) ?? "" - - // Verify the new key commitment matches - let newKey = deriveChannelKey(from: newPassword, channelName: update.channel) - let computedCommitment = computeKeyCommitment(for: newKey) - - guard computedCommitment == update.newKeyCommitment else { - return - } - - // Accept the new password - channelKeys[update.channel] = newKey - channelPasswords[update.channel] = newPassword - channelKeyCommitments[update.channel] = update.newKeyCommitment - - // Save to keychain - _ = KeychainManager.shared.saveChannelPassword(newPassword, for: update.channel) - - // Save channel data - saveChannelData() - - // Notify user - let notificationMsg = BitchatMessage( - sender: "system", - content: "password for \(update.channel) has been updated by the channel owner.", - timestamp: Date(), - isRelay: false - ) - - // Add to appropriate message list - if currentChannel == update.channel { - messages.append(notificationMsg) - } else if channelMessages[update.channel] != nil { - channelMessages[update.channel]?.append(notificationMsg) - } - - // Force UI update - DispatchQueue.main.async { [weak self] in - self?.objectWillChange.send() - } - } - - func didReceiveChannelMetadata(_ metadata: ChannelMetadata, from peerID: String) { - - // Check if we already have metadata for this channel - if let existingMetadata = channelMetadata[metadata.channel] { - // Keep the older one (first creator wins) - if existingMetadata.createdAt < metadata.createdAt { - return - } - } - - // Store the metadata - channelMetadata[metadata.channel] = metadata - - // Update channel creator info - if channelCreators[metadata.channel] == nil { - channelCreators[metadata.channel] = metadata.creatorFingerprint - - if metadata.isPasswordProtected { - passwordProtectedChannels.insert(metadata.channel) - if let commitment = metadata.keyCommitment { - channelKeyCommitments[metadata.channel] = commitment - } - } - - saveChannelData() - // Stored channel metadata - } - } } diff --git a/bitchat/Views/AppInfoView.swift b/bitchat/Views/AppInfoView.swift index 2c651b96..ab8802e6 100644 --- a/bitchat/Views/AppInfoView.swift +++ b/bitchat/Views/AppInfoView.swift @@ -28,8 +28,6 @@ struct AppInfoView: View { static let extendedRange = ("antenna.radiowaves.left.and.right", "extended range", "messages relay through peers, increasing the distance") static let favorites = ("star.fill", "favorites", "store-and-forward messages for favorite people") static let mentions = ("at", "mentions", "use @nickname to notify specific people") - static let channels = ("number", "channels", "create #channels for topic-based conversations") - static let privateChannels = ("lock.fill", "private channels", "secure channels with passwords and noise encryption") } enum Privacy { @@ -46,7 +44,6 @@ struct AppInfoView: View { "• swipe left for sidebar", "• tap a peer to start a private chat", "• use @nickname to mention someone", - "• use #channelname to create/join channels", "• triple-tap \"bitchat\" for panic mode", "• triple-tap chat messages to clear current chat" ] @@ -55,10 +52,8 @@ struct AppInfoView: View { enum Commands { static let title = "COMMANDS" static let list = [ - "/j #channel - join or create a channel", "/m @name - send private message", "/w - see who's online", - "/channels - show all discovered channels", "/block @name - block a peer", "/block - list blocked peers", "/unblock @name - unblock a peer", @@ -148,14 +143,6 @@ struct AppInfoView: View { FeatureRow(icon: Strings.Features.mentions.0, title: Strings.Features.mentions.1, description: Strings.Features.mentions.2) - - FeatureRow(icon: Strings.Features.channels.0, - title: Strings.Features.channels.1, - description: Strings.Features.channels.2) - - FeatureRow(icon: Strings.Features.privateChannels.0, - title: Strings.Features.privateChannels.1, - description: Strings.Features.privateChannels.2) } // Privacy diff --git a/bitchat/Views/ContentView.swift b/bitchat/Views/ContentView.swift index 8949f854..62f02d8c 100644 --- a/bitchat/Views/ContentView.swift +++ b/bitchat/Views/ContentView.swift @@ -18,18 +18,10 @@ struct ContentView: View { @State private var showSidebar = false @State private var sidebarDragOffset: CGFloat = 0 @State private var showAppInfo = false - @State private var showPasswordInput = false - @State private var passwordInputChannel: String? = nil - @State private var passwordInput = "" - @State private var showPasswordPrompt = false - @State private var passwordPromptInput = "" - @State private var showPasswordError = false @State private var showCommandSuggestions = false @State private var commandSuggestions: [String] = [] - @State private var showLeaveChannelAlert = false @State private var backSwipeOffset: CGFloat = 0 @State private var showPrivateChat = false - @State private var showChannel = false private var backgroundColor: Color { colorScheme == .dark ? Color.black : Color.white @@ -84,41 +76,6 @@ struct ContentView: View { .animation(.spring(response: 0.3, dampingFraction: 0.8), value: showPrivateChat) } - // Channel slide-over - if viewModel.currentChannel != nil { - channelView - .frame(width: geometry.size.width) - .background(backgroundColor) - .transition(.asymmetric( - insertion: .move(edge: .trailing), - removal: .move(edge: .trailing) - )) - .offset(x: showChannel ? 0 : geometry.size.width) - .offset(x: backSwipeOffset) - .gesture( - DragGesture() - .onChanged { value in - if value.translation.width > 0 { - backSwipeOffset = min(value.translation.width, geometry.size.width) - } - } - .onEnded { value in - if value.translation.width > 50 || (value.translation.width > 30 && value.velocity.width > 300) { - withAnimation(.spring(response: 0.3, dampingFraction: 0.8)) { - showChannel = false - backSwipeOffset = 0 - viewModel.switchToChannel(nil) - } - } else { - withAnimation(.spring(response: 0.3, dampingFraction: 0.8)) { - backSwipeOffset = 0 - } - } - } - ) - .animation(.spring(response: 0.3, dampingFraction: 0.8), value: showChannel) - } - // Sidebar overlay HStack(spacing: 0) { // Tap to dismiss area @@ -152,11 +109,6 @@ struct ContentView: View { showPrivateChat = newValue != nil } } - .onChange(of: viewModel.currentChannel) { newValue in - withAnimation(.spring(response: 0.3, dampingFraction: 0.8)) { - showChannel = newValue != nil - } - } .sheet(isPresented: $showAppInfo) { AppInfoView() } @@ -168,54 +120,9 @@ struct ContentView: View { FingerprintView(viewModel: viewModel, peerID: peerID) } } - .alert("Set Channel Password", isPresented: $showPasswordInput) { - SecureField("Password", text: $passwordInput) - Button("Cancel", role: .cancel) { - passwordInput = "" - passwordInputChannel = nil - } - Button("Set Password") { - if let channel = passwordInputChannel, !passwordInput.isEmpty { - viewModel.setChannelPassword(passwordInput, for: channel) - passwordInput = "" - passwordInputChannel = nil - } - } - } message: { - Text("Enter a password to protect \(passwordInputChannel ?? "channel"). Others will need this password to read messages.") - } - .alert("Enter Channel Password", isPresented: Binding( - get: { viewModel.showPasswordPrompt }, - set: { viewModel.showPasswordPrompt = $0 } - )) { - SecureField("Password", text: $passwordPromptInput) - Button("Cancel", role: .cancel) { - passwordPromptInput = "" - viewModel.passwordPromptChannel = nil - } - Button("Join") { - if let channel = viewModel.passwordPromptChannel, !passwordPromptInput.isEmpty { - let success = viewModel.joinChannel(channel, password: passwordPromptInput) - if success { - passwordPromptInput = "" - } else { - // Wrong password - show error - passwordPromptInput = "" - showPasswordError = true - } - } - } - } message: { - Text("Channel \(viewModel.passwordPromptChannel ?? "") is password protected. Enter the password to join.") - } - .alert("Wrong Password", isPresented: $showPasswordError) { - Button("OK", role: .cancel) { } - } message: { - Text("The password you entered is incorrect. Please try again.") - } } - private func messagesView(for channel: String?, privatePeer: String?) -> some View { + private func messagesView(privatePeer: String?) -> some View { ScrollViewReader { proxy in ScrollView { LazyVStack(alignment: .leading, spacing: 2) { @@ -223,9 +130,6 @@ struct ContentView: View { if let privatePeer = privatePeer { let msgs = viewModel.getPrivateChatMessages(for: privatePeer) return msgs - } else if let channel = channel { - let msgs = viewModel.getChannelMessages(channel) - return msgs } else { return viewModel.messages } @@ -294,7 +198,7 @@ struct ContentView: View { viewModel.sendMessage("/clear") } .onChange(of: viewModel.messages.count) { _ in - if channel == nil && privatePeer == nil && !viewModel.messages.isEmpty { + if privatePeer == nil && !viewModel.messages.isEmpty { withAnimation { proxy.scrollTo(viewModel.messages.last?.id, anchor: .bottom) } @@ -309,15 +213,6 @@ struct ContentView: View { } } } - .onChange(of: viewModel.channelMessages) { _ in - if let channelName = channel, - let messages = viewModel.channelMessages[channelName], - !messages.isEmpty { - withAnimation { - proxy.scrollTo(messages.last?.id, anchor: .bottom) - } - } - } .onAppear { // Also check when view appears if let peerID = privatePeer { @@ -376,23 +271,14 @@ struct ContentView: View { (["/block"], "[nickname]", "block or list blocked peers"), (["/clear"], nil, "clear chat messages"), (["/hug"], "", "send someone a warm hug"), - (["/j", "/join"], "", "join or create a channel"), (["/m", "/msg"], " [message]", "send private message"), - (["/channels"], nil, "show all discovered channels"), (["/slap"], "", "slap someone with a trout"), (["/unblock"], "", "unblock a peer"), (["/w"], nil, "see who's online") ] - let channelCommandInfo: [(commands: [String], syntax: String?, description: String)] = [ - (["/pass"], "[password]", "change channel password"), - (["/transfer"], "", "transfer channel ownership") - ] - // Build the display - let allCommands = viewModel.currentChannel != nil - ? commandInfo + channelCommandInfo - : commandInfo + let allCommands = commandInfo // Show matching commands ForEach(commandSuggestions, id: \.self) { command in @@ -450,13 +336,6 @@ struct ContentView: View { .lineLimit(1) .fixedSize() .padding(.leading, 12) - } else if let currentChannel = viewModel.currentChannel, viewModel.passwordProtectedChannels.contains(currentChannel) { - Text("<@\(viewModel.nickname)> →") - .font(.system(size: 12, weight: .medium, design: .monospaced)) - .foregroundColor(Color.orange) - .lineLimit(1) - .fixedSize() - .padding(.leading, 12) } else { Text("<@\(viewModel.nickname)>") .font(.system(size: 12, weight: .medium, design: .monospaced)) @@ -479,24 +358,16 @@ struct ContentView: View { // Check for command autocomplete if newValue.hasPrefix("/") && newValue.count >= 1 { // Build context-aware command list - var commandDescriptions = [ + let commandDescriptions = [ ("/block", "block or list blocked peers"), - ("/channels", "show all discovered channels"), ("/clear", "clear chat messages"), ("/hug", "send someone a warm hug"), - ("/j", "join or create a channel"), ("/m", "send private message"), ("/slap", "slap someone with a trout"), ("/unblock", "unblock a peer"), ("/w", "see who's online") ] - // Add channel-specific commands if in a channel - if viewModel.currentChannel != nil { - commandDescriptions.append(("/pass", "change channel password")) - commandDescriptions.append(("/transfer", "transfer channel ownership")) - } - let input = newValue.lowercased() // Map of aliases to primary commands @@ -535,8 +406,7 @@ struct ContentView: View { Image(systemName: "arrow.up.circle.fill") .font(.system(size: 20)) .foregroundColor(messageText.isEmpty ? Color.gray : - (viewModel.selectedPrivateChatPeer != nil || - (viewModel.currentChannel != nil && viewModel.passwordProtectedChannels.contains(viewModel.currentChannel ?? ""))) + viewModel.selectedPrivateChatPeer != nil ? Color.orange : textColor) } .buttonStyle(.plain) @@ -557,133 +427,6 @@ struct ContentView: View { messageText = "" } - @ViewBuilder - private var channelsSection: some View { - if !viewModel.joinedChannels.isEmpty { - VStack(alignment: .leading, spacing: 6) { - HStack(spacing: 4) { - Image(systemName: "square.split.2x2") - .font(.system(size: 10)) - .accessibilityHidden(true) - Text("CHANNELS") - .font(.system(size: 11, weight: .bold, design: .monospaced)) - } - .foregroundColor(secondaryTextColor) - .padding(.horizontal, 12) - - ForEach(Array(viewModel.joinedChannels).sorted(), id: \.self) { channel in - channelButton(for: channel) - } - } - } - } - - @ViewBuilder - private func channelButton(for channel: String) -> some View { - Button(action: { - // Check if channel needs password and we don't have it - if viewModel.passwordProtectedChannels.contains(channel) && viewModel.channelKeys[channel] == nil { - // Need password - viewModel.passwordPromptChannel = channel - viewModel.showPasswordPrompt = true - } else { - // Can enter channel - viewModel.switchToChannel(channel) - withAnimation(.spring()) { - showSidebar = false - } - } - }) { - HStack { - // Lock icon for password protected channels - if viewModel.passwordProtectedChannels.contains(channel) { - Image(systemName: "lock.fill") - .font(.system(size: 10)) - .foregroundColor(secondaryTextColor) - .accessibilityLabel("Password protected") - } - - Text(channel) - .font(.system(size: 14, design: .monospaced)) - .foregroundColor(viewModel.currentChannel == channel ? Color.blue : textColor) - - Spacer() - - // Unread count - if let unreadCount = viewModel.unreadChannelMessages[channel], unreadCount > 0 { - Text("\(unreadCount)") - .font(.system(size: 10, weight: .bold, design: .monospaced)) - .foregroundColor(backgroundColor) - .padding(.horizontal, 6) - .padding(.vertical, 2) - .background(Color.orange) - .clipShape(Capsule()) - } - - // Channel controls - if viewModel.currentChannel == channel { - channelControls(for: channel) - } - } - } - .buttonStyle(.plain) - .padding(.horizontal, 12) - .padding(.vertical, 4) - .background(viewModel.currentChannel == channel ? backgroundColor.opacity(0.5) : Color.clear) - } - - @ViewBuilder - private func channelControls(for channel: String) -> some View { - HStack(spacing: 4) { - // Password button for channel creator only - if viewModel.isChannelOwner(channel) { - Button(action: { - // Toggle password protection - if viewModel.passwordProtectedChannels.contains(channel) { - viewModel.removeChannelPassword(for: channel) - } else { - // Show password input - showPasswordInput = true - passwordInputChannel = channel - } - }) { - HStack(spacing: 2) { - Image(systemName: viewModel.passwordProtectedChannels.contains(channel) ? "lock.fill" : "lock") - .font(.system(size: 10)) - } - .foregroundColor(viewModel.passwordProtectedChannels.contains(channel) ? backgroundColor : secondaryTextColor) - .padding(.horizontal, 8) - .padding(.vertical, 2) - .background(viewModel.passwordProtectedChannels.contains(channel) ? Color.orange : Color.clear) - .overlay( - RoundedRectangle(cornerRadius: 4) - .stroke(viewModel.passwordProtectedChannels.contains(channel) ? Color.orange : secondaryTextColor.opacity(0.5), lineWidth: 1) - ) - } - .buttonStyle(.plain) - .accessibilityLabel(viewModel.passwordProtectedChannels.contains(channel) ? "Remove password" : "Set password") - } - - // Leave button - Button(action: { - showLeaveChannelAlert = true - }) { - Image(systemName: "xmark.circle.fill") - .font(.system(size: 14)) - .foregroundColor(Color.red.opacity(0.6)) - } - .buttonStyle(.plain) - .alert("leave channel", isPresented: $showLeaveChannelAlert) { - Button("cancel", role: .cancel) { } - Button("leave", role: .destructive) { - viewModel.leaveChannel(channel) - } - } message: { - Text("sure you want to leave \(channel)?") - } - } - } - private var sidebarView: some View { HStack(spacing: 0) { // Grey vertical bar for visual continuity @@ -708,23 +451,10 @@ struct ContentView: View { // Rooms and People list ScrollView { VStack(alignment: .leading, spacing: 12) { - // Channels section - channelsSection - - if !viewModel.joinedChannels.isEmpty { - Divider() - .padding(.vertical, 4) - } - // People section VStack(alignment: .leading, spacing: 8) { // Show appropriate header based on context - if let currentChannel = viewModel.currentChannel { - Text("IN \(currentChannel.uppercased())") - .font(.system(size: 11, weight: .semibold, design: .monospaced)) - .foregroundColor(secondaryTextColor) - .padding(.horizontal, 12) - } else if !viewModel.connectedPeers.isEmpty { + if !viewModel.connectedPeers.isEmpty { HStack(spacing: 4) { Image(systemName: "person.2.fill") .font(.system(size: 10)) @@ -741,38 +471,13 @@ struct ContentView: View { .font(.system(size: 14, design: .monospaced)) .foregroundColor(secondaryTextColor) .padding(.horizontal) - } else if let currentChannel = viewModel.currentChannel, - let channelMemberIDs = viewModel.channelMembers[currentChannel], - channelMemberIDs.isEmpty { - Text("no one in this channel yet...") - .font(.system(size: 14, design: .monospaced)) - .foregroundColor(secondaryTextColor) - .padding(.horizontal) } else { let peerNicknames = viewModel.meshService.getPeerNicknames() let peerRSSI = viewModel.meshService.getPeerRSSI() let myPeerID = viewModel.meshService.myPeerID - // Filter peers based on current channel - let peersToShow: [String] = { - if let currentChannel = viewModel.currentChannel, - let channelMemberIDs = viewModel.channelMembers[currentChannel] { - // Show only peers who have sent messages to this channel (including self) - - // Start with channel members who are also connected - var memberPeers = viewModel.connectedPeers.filter { channelMemberIDs.contains($0) } - - // Always include ourselves if we're a channel member - if channelMemberIDs.contains(myPeerID) && !memberPeers.contains(myPeerID) { - memberPeers.append(myPeerID) - } - - return memberPeers - } else { - // Show all connected peers in main chat - return viewModel.connectedPeers - } - }() + // Show all connected peers + let peersToShow: [String] = viewModel.connectedPeers // Sort peers: favorites first, then alphabetically by nickname let sortedPeers = peersToShow.sorted { peer1, peer2 in @@ -888,7 +593,7 @@ struct ContentView: View { VStack(spacing: 0) { mainHeaderView Divider() - messagesView(for: nil, privatePeer: nil) + messagesView(privatePeer: nil) Divider() inputView } @@ -935,7 +640,7 @@ struct ContentView: View { VStack(spacing: 0) { privateHeaderView Divider() - messagesView(for: nil, privatePeer: viewModel.selectedPrivateChatPeer) + messagesView(privatePeer: viewModel.selectedPrivateChatPeer) Divider() inputView } @@ -944,24 +649,6 @@ struct ContentView: View { } } - private var channelView: some View { - HStack(spacing: 0) { - // Vertical separator bar - Rectangle() - .fill(Color.gray.opacity(0.3)) - .frame(width: 1) - - VStack(spacing: 0) { - channelHeaderView - Divider() - messagesView(for: viewModel.currentChannel, privatePeer: nil) - Divider() - inputView - } - .background(backgroundColor) - .foregroundColor(textColor) - } - } private var mainHeaderView: some View { HStack(spacing: 0) { @@ -999,16 +686,6 @@ struct ContentView: View { // People counter with unread indicator HStack(spacing: 4) { - // Check for any unread channel messages - let hasUnreadChannelMessages = viewModel.unreadChannelMessages.values.contains { $0 > 0 } - - if hasUnreadChannelMessages { - Image(systemName: "number") - .font(.system(size: 12)) - .foregroundColor(Color.blue) - .accessibilityLabel("Unread channel messages") - } - if !viewModel.unreadPrivateMessages.isEmpty { Image(systemName: "envelope.fill") .font(.system(size: 12)) @@ -1017,7 +694,6 @@ struct ContentView: View { } let otherPeersCount = viewModel.connectedPeers.filter { $0 != viewModel.meshService.myPeerID }.count - let channelCount = viewModel.joinedChannels.count HStack(spacing: 4) { // People icon with count @@ -1027,18 +703,6 @@ struct ContentView: View { Text("\(otherPeersCount)") .font(.system(size: 12, design: .monospaced)) .accessibilityHidden(true) - - // Channels icon with count (only if there are channels) - if channelCount > 0 { - Text("·") - .font(.system(size: 12, design: .monospaced)) - Image(systemName: "square.split.2x2") - .font(.system(size: 11)) - .accessibilityLabel("\(channelCount) active \(channelCount == 1 ? "channel" : "channels")") - Text("\(channelCount)") - .font(.system(size: 12, design: .monospaced)) - .accessibilityHidden(true) - } } .foregroundColor(viewModel.isConnected ? textColor : Color.red) } @@ -1123,125 +787,6 @@ struct ContentView: View { } } - private var channelHeaderView: some View { - Group { - if let currentChannel = viewModel.currentChannel { - HStack { - Button(action: { - withAnimation(.spring(response: 0.3, dampingFraction: 0.8)) { - showChannel = false - viewModel.switchToChannel(nil) - } - }) { - HStack(spacing: 4) { - Image(systemName: "chevron.left") - .font(.system(size: 12)) - Text("back") - .font(.system(size: 14, design: .monospaced)) - } - .foregroundColor(textColor) - } - .buttonStyle(.plain) - .accessibilityLabel("Back to main chat") - - Spacer() - - Button(action: { - withAnimation(.spring(response: 0.3, dampingFraction: 0.8)) { - showSidebar.toggle() - sidebarDragOffset = 0 - } - }) { - HStack(spacing: 4) { - if viewModel.passwordProtectedChannels.contains(currentChannel) { - Image(systemName: "lock.fill") - .font(.system(size: 14)) - .foregroundColor(Color.orange) - .accessibilityLabel("Password protected channel") - } - - Text(currentChannel) - .font(.system(size: 16, weight: .medium, design: .monospaced)) - .foregroundColor(viewModel.passwordProtectedChannels.contains(currentChannel) ? Color.orange : Color.blue) - - // Verification status indicator after channel name - if viewModel.passwordProtectedChannels.contains(currentChannel), - let status = viewModel.channelVerificationStatus[currentChannel] { - switch status { - case .verifying: - ProgressView() - .scaleEffect(0.5) - .frame(width: 12, height: 12) - case .verified: - Image(systemName: "checkmark.circle.fill") - .font(.system(size: 12)) - .foregroundColor(Color.green) - case .failed: - Image(systemName: "xmark.circle.fill") - .font(.system(size: 12)) - .foregroundColor(Color.red) - case .unverified: - Image(systemName: "questionmark.circle") - .font(.system(size: 12)) - .foregroundColor(Color.gray) - .help("Password verification pending") - } - } - } - } - .buttonStyle(.plain) - .frame(maxWidth: .infinity) - - Spacer() - - HStack(spacing: 8) { - // Password button for channel creator only - if viewModel.isChannelOwner(currentChannel) { - Button(action: { - // Toggle password protection - if viewModel.passwordProtectedChannels.contains(currentChannel) { - viewModel.removeChannelPassword(for: currentChannel) - } else { - // Show password input - showPasswordInput = true - passwordInputChannel = currentChannel - } - }) { - Image(systemName: viewModel.passwordProtectedChannels.contains(currentChannel) ? "lock.fill" : "lock") - .font(.system(size: 16)) - .foregroundColor(viewModel.passwordProtectedChannels.contains(currentChannel) ? Color.yellow : textColor) - } - .buttonStyle(.plain) - .accessibilityLabel(viewModel.passwordProtectedChannels.contains(currentChannel) ? "Remove channel password" : "Set channel password") - } - - // Leave channel button - Button(action: { - showLeaveChannelAlert = true - }) { - Image(systemName: "xmark.circle") - .font(.system(size: 16)) - .foregroundColor(Color.red.opacity(0.8)) - } - .buttonStyle(.plain) - .alert("leave channel?", isPresented: $showLeaveChannelAlert) { - Button("cancel", role: .cancel) { } - Button("leave", role: .destructive) { - viewModel.leaveChannel(currentChannel) - } - } message: { - Text("sure you want to leave \(currentChannel)?") - } - } - } - .frame(height: 44) - .padding(.horizontal, 12) - .background(backgroundColor.opacity(0.95)) - } else { - EmptyView() - } - } - } } // Helper view for rendering message content with clickable hashtags diff --git a/bitchat/Views/NoiseTestingView.swift b/bitchat/Views/NoiseTestingView.swift deleted file mode 100644 index d1aeb9ff..00000000 --- a/bitchat/Views/NoiseTestingView.swift +++ /dev/null @@ -1,129 +0,0 @@ -// -// NoiseTestingView.swift -// bitchat -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import SwiftUI - -#if DEBUG -struct NoiseTestingView: View { - @ObservedObject var viewModel: ChatViewModel - @Environment(\.colorScheme) var colorScheme - @State private var testChecklist = NoiseTestingHelper.shared.getTestChecklist() - - private var textColor: Color { - colorScheme == .dark ? Color.green : Color(red: 0, green: 0.5, blue: 0) - } - - private var backgroundColor: Color { - colorScheme == .dark ? Color.black : Color.white - } - - var body: some View { - VStack(alignment: .leading, spacing: 16) { - // Header - Text("NOISE PROTOCOL TEST HELPER") - .font(.system(size: 16, weight: .bold, design: .monospaced)) - .foregroundColor(textColor) - .padding(.bottom) - - // Status Overview - VStack(alignment: .leading, spacing: 8) { - Text("CURRENT STATUS:") - .font(.system(size: 12, weight: .bold, design: .monospaced)) - .foregroundColor(textColor.opacity(0.7)) - - ForEach(viewModel.connectedPeers, id: \.self) { peerID in - let nickname = viewModel.meshService.getPeerNicknames()[peerID] ?? "Unknown" - let status = viewModel.getEncryptionStatus(for: peerID) - - HStack { - Image(systemName: status.icon) - .font(.system(size: 12)) - .foregroundColor(status == .noiseVerified ? Color.green : - status == .noiseSecured ? textColor : - Color.red) - - Text("\(nickname): \(status.description)") - .font(.system(size: 12, design: .monospaced)) - .foregroundColor(textColor) - - Spacer() - } - } - - if viewModel.connectedPeers.isEmpty { - Text("No peers connected") - .font(.system(size: 12, design: .monospaced)) - .foregroundColor(Color.gray) - } - } - .padding() - .background(Color.gray.opacity(0.1)) - .cornerRadius(8) - - // Test Checklist - ScrollView { - Text(testChecklist) - .font(.system(size: 11, design: .monospaced)) - .foregroundColor(textColor) - .textSelection(.enabled) - } - .padding() - .background(Color.gray.opacity(0.1)) - .cornerRadius(8) - - // Debug Actions - HStack(spacing: 16) { - Button("Force Handshake") { - // Trigger handshake with all peers by sending a broadcast announce - // This will cause all peers to re-exchange keys - viewModel.meshService.sendBroadcastAnnounce() - } - .foregroundColor(textColor) - - Button("Clear Sessions") { - // Clear all Noise sessions for testing - let noiseService = viewModel.meshService.getNoiseService() - for peerID in viewModel.connectedPeers { - noiseService.removePeer(peerID) - } - viewModel.peerEncryptionStatus.removeAll() - } - .foregroundColor(Color.orange) - - Button("Copy Logs") { - // Copy test results to clipboard - var logs = "NOISE PROTOCOL TEST RESULTS\n" - logs += "===========================\n\n" - logs += "Timestamp: \(Date())\n" - logs += "Connected Peers: \(viewModel.connectedPeers.count)\n\n" - - for peerID in viewModel.connectedPeers { - let nickname = viewModel.meshService.getPeerNicknames()[peerID] ?? "Unknown" - let status = viewModel.getEncryptionStatus(for: peerID) - logs += "\(nickname) (\(peerID)): \(status.description)\n" - } - - #if os(iOS) - UIPasteboard.general.string = logs - #else - NSPasteboard.general.clearContents() - NSPasteboard.general.setString(logs, forType: .string) - #endif - } - .foregroundColor(textColor) - - - Spacer() - } - } - .padding() - .frame(width: 500, height: 600) - .background(backgroundColor) - } -} -#endif \ No newline at end of file diff --git a/bitchatTests/BinaryProtocolTests.swift b/bitchatTests/BinaryProtocolTests.swift deleted file mode 100644 index 9882f3a0..00000000 --- a/bitchatTests/BinaryProtocolTests.swift +++ /dev/null @@ -1,110 +0,0 @@ -// -// BinaryProtocolTests.swift -// bitchatTests -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import XCTest -@testable import bitchat - -class BinaryProtocolTests: XCTestCase { - - func testPacketEncodingDecoding() { - // Test basic packet - let packet = BitchatPacket( - type: MessageType.message.rawValue, - senderID: Data("testuser".utf8), - recipientID: Data("recipient".utf8), - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: Data("Hello, World!".utf8), - signature: nil, - ttl: 5 - ) - - // Encode - guard let encoded = packet.toBinaryData() else { - XCTFail("Failed to encode packet") - return - } - - // Decode - guard let decoded = BitchatPacket.from(encoded) else { - XCTFail("Failed to decode packet") - return - } - - // Verify - XCTAssertEqual(decoded.version, packet.version) - XCTAssertEqual(decoded.type, packet.type) - XCTAssertEqual(decoded.ttl, packet.ttl) - XCTAssertEqual(decoded.timestamp, packet.timestamp) - XCTAssertEqual(decoded.payload, packet.payload) - } - - func testBroadcastPacket() { - let packet = BitchatPacket( - type: MessageType.message.rawValue, - senderID: Data("sender".utf8), - recipientID: SpecialRecipients.broadcast, - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: Data("Broadcast message".utf8), - signature: nil, - ttl: 3 - ) - - guard let encoded = packet.toBinaryData() else { - XCTFail("Failed to encode broadcast packet") - return - } - - guard let decoded = BitchatPacket.from(encoded) else { - XCTFail("Failed to decode broadcast packet") - return - } - - // Verify broadcast recipient - XCTAssertEqual(decoded.recipientID, SpecialRecipients.broadcast) - } - - func testPacketWithSignature() { - let signature = Data(repeating: 0xAB, count: 64) - let packet = BitchatPacket( - type: MessageType.message.rawValue, - senderID: Data("sender".utf8), - recipientID: Data("recipient".utf8), - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: Data("Signed message".utf8), - signature: signature, - ttl: 5 - ) - - guard let encoded = packet.toBinaryData() else { - XCTFail("Failed to encode signed packet") - return - } - - guard let decoded = BitchatPacket.from(encoded) else { - XCTFail("Failed to decode signed packet") - return - } - - XCTAssertNotNil(decoded.signature) - XCTAssertEqual(decoded.signature, signature) - } - - func testInvalidPacketHandling() { - // Test empty data - XCTAssertNil(BitchatPacket.from(Data())) - - // Test truncated data - let truncated = Data(repeating: 0, count: 10) - XCTAssertNil(BitchatPacket.from(truncated)) - - // Test invalid version - var invalidVersion = Data(repeating: 0, count: 100) - invalidVersion[0] = 99 // Invalid version - XCTAssertNil(BitchatPacket.from(invalidVersion)) - } -} \ No newline at end of file diff --git a/bitchatTests/BinaryProtocolVersionTests.swift b/bitchatTests/BinaryProtocolVersionTests.swift deleted file mode 100644 index 22f9940d..00000000 --- a/bitchatTests/BinaryProtocolVersionTests.swift +++ /dev/null @@ -1,230 +0,0 @@ -// -// BinaryProtocolVersionTests.swift -// bitchatTests -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import XCTest -@testable import bitchat - -class BinaryProtocolVersionTests: XCTestCase { - - // MARK: - Version Support Tests - - func testCurrentVersionIsSupported() { - // Current version should always be supported - XCTAssertTrue(ProtocolVersion.isSupported(ProtocolVersion.current)) - } - - func testVersion1IsSupported() { - // Version 1 must be supported for backward compatibility - XCTAssertTrue(ProtocolVersion.isSupported(1)) - } - - func testUnsupportedVersionsRejected() { - // Test various unsupported versions - XCTAssertFalse(ProtocolVersion.isSupported(0)) - XCTAssertFalse(ProtocolVersion.isSupported(2)) - XCTAssertFalse(ProtocolVersion.isSupported(99)) - XCTAssertFalse(ProtocolVersion.isSupported(255)) - } - - // MARK: - Binary Protocol Version Handling - - func testBinaryProtocolRejectsUnsupportedVersion() { - // Create a packet with unsupported version - var data = Data() - - // Header - data.append(99) // Unsupported version - data.append(MessageType.message.rawValue) - data.append(5) // TTL - - // Timestamp (8 bytes) - let timestamp = UInt64(Date().timeIntervalSince1970 * 1000) - for i in (0..<8).reversed() { - data.append(UInt8((timestamp >> (i * 8)) & 0xFF)) - } - - // Flags (no recipient, no signature) - data.append(0) - - // Payload length (2 bytes) - let payload = Data("test".utf8) - let payloadLength = UInt16(payload.count) - data.append(UInt8((payloadLength >> 8) & 0xFF)) - data.append(UInt8(payloadLength & 0xFF)) - - // SenderID (8 bytes) - data.append(Data(repeating: 0x01, count: 8)) - - // Payload - data.append(payload) - - // Try to decode - should fail due to unsupported version - let decoded = BinaryProtocol.decode(data) - XCTAssertNil(decoded, "Should reject packet with unsupported version") - } - - func testBinaryProtocolAcceptsVersion1() { - // Create a valid version 1 packet - let packet = BitchatPacket( - type: MessageType.message.rawValue, - senderID: Data("sender12".utf8), - recipientID: nil, - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: Data("Hello".utf8), - signature: nil, - ttl: 3 - ) - - // Encode - guard let encoded = packet.toBinaryData() else { - XCTFail("Failed to encode version 1 packet") - return - } - - // Decode - guard let decoded = BitchatPacket.from(encoded) else { - XCTFail("Failed to decode version 1 packet") - return - } - - XCTAssertEqual(decoded.version, 1) - XCTAssertEqual(decoded.payload, Data("Hello".utf8)) - } - - // MARK: - Version Message Type Tests - - func testVersionHelloMessageType() { - let hello = VersionHello( - clientVersion: "1.0.0", - platform: "iOS" - ) - - guard let helloData = hello.encode() else { - XCTFail("Failed to encode VersionHello") - return - } - - let packet = BitchatPacket( - type: MessageType.versionHello.rawValue, - ttl: 1, - senderID: "testpeer", - payload: helloData - ) - - XCTAssertEqual(packet.type, MessageType.versionHello.rawValue) - XCTAssertEqual(MessageType.versionHello.description, "versionHello") - } - - func testVersionAckMessageType() { - let ack = VersionAck( - agreedVersion: 1, - serverVersion: "1.0.0", - platform: "macOS" - ) - - guard let ackData = ack.encode() else { - XCTFail("Failed to encode VersionAck") - return - } - - let packet = BitchatPacket( - type: MessageType.versionAck.rawValue, - ttl: 1, - senderID: "testpeer", - payload: ackData - ) - - XCTAssertEqual(packet.type, MessageType.versionAck.rawValue) - XCTAssertEqual(MessageType.versionAck.description, "versionAck") - } - - // MARK: - Compression Compatibility Tests - - func testCompressedPacketWithVersion() { - // Create a large payload that will trigger compression - let largeContent = String(repeating: "Hello World! ", count: 100) - let packet = BitchatPacket( - type: MessageType.message.rawValue, - senderID: Data("sender12".utf8), - recipientID: nil, - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: Data(largeContent.utf8), - signature: nil, - ttl: 3 - ) - - // Encode (should compress) - guard let encoded = packet.toBinaryData() else { - XCTFail("Failed to encode packet with compression") - return - } - - // Decode - guard let decoded = BitchatPacket.from(encoded) else { - XCTFail("Failed to decode compressed packet") - return - } - - // Verify version is preserved - XCTAssertEqual(decoded.version, 1) - XCTAssertEqual(decoded.payload, Data(largeContent.utf8)) - } - - // MARK: - Future Version Migration Tests - - func testVersionSetConsistency() { - // Ensure version constants are consistent - XCTAssertTrue(ProtocolVersion.supportedVersions.contains(ProtocolVersion.current)) - XCTAssertTrue(ProtocolVersion.supportedVersions.contains(ProtocolVersion.minimum)) - XCTAssertGreaterThanOrEqual(ProtocolVersion.current, ProtocolVersion.minimum) - XCTAssertLessThanOrEqual(ProtocolVersion.current, ProtocolVersion.maximum) - } - - func testVersionNegotiationAlwaysPicksHighest() { - // When multiple versions are supported, should pick highest - let clientVersions: [UInt8] = [1, 2, 3, 4, 5] - let serverVersions: [UInt8] = [3, 4, 5, 6, 7] - - let agreed = ProtocolVersion.negotiateVersion( - clientVersions: clientVersions, - serverVersions: serverVersions - ) - - XCTAssertEqual(agreed, 5) // Highest common version - } - - // MARK: - Packet Size Tests with Version Negotiation - - func testVersionNegotiationPacketsAreSmall() { - // Version negotiation should use minimal bandwidth - let hello = VersionHello( - clientVersion: "1.0.0", - platform: "iOS" - ) - - guard let helloData = hello.encode() else { - XCTFail("Failed to encode hello") - return - } - - let packet = BitchatPacket( - type: MessageType.versionHello.rawValue, - ttl: 1, - senderID: "12345678", - payload: helloData - ) - - guard let encoded = packet.toBinaryData() else { - XCTFail("Failed to encode packet") - return - } - - // Version negotiation packets should be reasonably small - XCTAssertLessThan(encoded.count, 512, "Version negotiation packet too large") - } -} \ No newline at end of file diff --git a/bitchatTests/BitchatMessageTests.swift b/bitchatTests/BitchatMessageTests.swift deleted file mode 100644 index 1ebda5f0..00000000 --- a/bitchatTests/BitchatMessageTests.swift +++ /dev/null @@ -1,242 +0,0 @@ -// -// BitchatMessageTests.swift -// bitchatTests -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import XCTest -@testable import bitchat - -class BitchatMessageTests: XCTestCase { - - func testMessageEncodingDecoding() { - let message = BitchatMessage( - sender: "testuser", - content: "Hello, World!", - timestamp: Date(), - isRelay: false, - originalSender: nil, - isPrivate: false, - recipientNickname: nil, - senderPeerID: "peer123", - mentions: ["alice", "bob"] - ) - - guard let encoded = message.toBinaryPayload() else { - XCTFail("Failed to encode message") - return - } - - guard let decoded = BitchatMessage.fromBinaryPayload(encoded) else { - XCTFail("Failed to decode message") - return - } - - XCTAssertEqual(decoded.sender, message.sender) - XCTAssertEqual(decoded.content, message.content) - XCTAssertEqual(decoded.isPrivate, message.isPrivate) - XCTAssertEqual(decoded.mentions?.count, 2) - XCTAssertTrue(decoded.mentions?.contains("alice") ?? false) - XCTAssertTrue(decoded.mentions?.contains("bob") ?? false) - } - - func testRoomMessage() { - let channelMessage = BitchatMessage( - sender: "alice", - content: "Hello #general", - timestamp: Date(), - isRelay: false, - originalSender: nil, - isPrivate: false, - recipientNickname: nil, - senderPeerID: "alice123", - mentions: nil, - channel: "#general" - ) - - guard let encoded = channelMessage.toBinaryPayload() else { - XCTFail("Failed to encode channel message") - return - } - - guard let decoded = BitchatMessage.fromBinaryPayload(encoded) else { - XCTFail("Failed to decode channel message") - return - } - - XCTAssertEqual(decoded.channel, "#general") - XCTAssertEqual(decoded.content, channelMessage.content) - } - - func testEncryptedRoomMessage() { - let encryptedData = Data([1, 2, 3, 4, 5, 6, 7, 8]) // Mock encrypted content - - let encryptedMessage = BitchatMessage( - sender: "bob", - content: "", // Empty for encrypted messages - timestamp: Date(), - isRelay: false, - originalSender: nil, - isPrivate: false, - recipientNickname: nil, - senderPeerID: "bob456", - mentions: nil, - channel: "#secret", - encryptedContent: encryptedData, - isEncrypted: true - ) - - guard let encoded = encryptedMessage.toBinaryPayload() else { - XCTFail("Failed to encode encrypted message") - return - } - - guard let decoded = BitchatMessage.fromBinaryPayload(encoded) else { - XCTFail("Failed to decode encrypted message") - return - } - - XCTAssertTrue(decoded.isEncrypted) - XCTAssertEqual(decoded.encryptedContent, encryptedData) - XCTAssertEqual(decoded.channel, "#secret") - XCTAssertEqual(decoded.content, "") // Content should be empty for encrypted messages - } - - func testPrivateMessage() { - let privateMessage = BitchatMessage( - sender: "alice", - content: "This is private", - timestamp: Date(), - isRelay: false, - originalSender: nil, - isPrivate: true, - recipientNickname: "bob", - senderPeerID: "alicePeer" - ) - - guard let encoded = privateMessage.toBinaryPayload() else { - XCTFail("Failed to encode private message") - return - } - - guard let decoded = BitchatMessage.fromBinaryPayload(encoded) else { - XCTFail("Failed to decode private message") - return - } - - XCTAssertTrue(decoded.isPrivate) - XCTAssertEqual(decoded.recipientNickname, "bob") - } - - func testRelayMessage() { - let relayMessage = BitchatMessage( - sender: "charlie", - content: "Relayed message", - timestamp: Date(), - isRelay: true, - originalSender: "alice", - isPrivate: false - ) - - guard let encoded = relayMessage.toBinaryPayload() else { - XCTFail("Failed to encode relay message") - return - } - - guard let decoded = BitchatMessage.fromBinaryPayload(encoded) else { - XCTFail("Failed to decode relay message") - return - } - - XCTAssertTrue(decoded.isRelay) - XCTAssertEqual(decoded.originalSender, "alice") - } - - func testEmptyContent() { - let emptyMessage = BitchatMessage( - sender: "user", - content: "", - timestamp: Date(), - isRelay: false, - originalSender: nil - ) - - guard let encoded = emptyMessage.toBinaryPayload() else { - XCTFail("Failed to encode empty message") - return - } - - guard let decoded = BitchatMessage.fromBinaryPayload(encoded) else { - XCTFail("Failed to decode empty message") - return - } - - XCTAssertEqual(decoded.content, "") - } - - func testLongContent() { - let longContent = String(repeating: "A", count: 1000) - let longMessage = BitchatMessage( - sender: "user", - content: longContent, - timestamp: Date(), - isRelay: false, - originalSender: nil - ) - - guard let encoded = longMessage.toBinaryPayload() else { - XCTFail("Failed to encode long message") - return - } - - guard let decoded = BitchatMessage.fromBinaryPayload(encoded) else { - XCTFail("Failed to decode long message") - return - } - - XCTAssertEqual(decoded.content, longContent) - } - - func testPrivateMessageWithAllFieldsForNoise() { - // Test that private messages with ID field (used by Noise) are encoded/decoded correctly - let messageID = UUID().uuidString - let privateMessage = BitchatMessage( - id: messageID, - sender: "alice", - content: "Hello Bob, this is a private message via Noise", - timestamp: Date(), - isRelay: false, - originalSender: nil, - isPrivate: true, - recipientNickname: "bob", - senderPeerID: "alice-peer-id-123", - mentions: nil, - channel: nil - ) - - // Encode to binary payload (as used by Noise encryption) - guard let encoded = privateMessage.toBinaryPayload() else { - XCTFail("Failed to encode private message with ID to binary payload") - return - } - - // Decode from binary payload (as received from Noise decryption) - guard let decoded = BitchatMessage.fromBinaryPayload(encoded) else { - XCTFail("Failed to decode private message with ID from binary payload") - return - } - - // Verify all fields match - XCTAssertEqual(decoded.id, messageID) - XCTAssertEqual(decoded.sender, "alice") - XCTAssertEqual(decoded.content, "Hello Bob, this is a private message via Noise") - XCTAssertEqual(decoded.isPrivate, true) - XCTAssertEqual(decoded.recipientNickname, "bob") - XCTAssertEqual(decoded.senderPeerID, "alice-peer-id-123") - XCTAssertNil(decoded.channel) - XCTAssertFalse(decoded.isRelay) - XCTAssertNil(decoded.originalSender) - } -} \ No newline at end of file diff --git a/bitchatTests/BloomFilterTests.swift b/bitchatTests/BloomFilterTests.swift deleted file mode 100644 index 11cbade7..00000000 --- a/bitchatTests/BloomFilterTests.swift +++ /dev/null @@ -1,101 +0,0 @@ -// -// BloomFilterTests.swift -// bitchatTests -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import XCTest -@testable import bitchat - -class BloomFilterTests: XCTestCase { - - func testBasicBloomFilter() { - var filter = OptimizedBloomFilter(expectedItems: 100, falsePositiveRate: 0.01) - - // Test insertion and lookup - let testStrings = ["message1", "message2", "message3", "test123"] - - for str in testStrings { - XCTAssertFalse(filter.contains(str)) - filter.insert(str) - XCTAssertTrue(filter.contains(str)) - } - } - - func testFalsePositiveRate() { - var filter = OptimizedBloomFilter(expectedItems: 100, falsePositiveRate: 0.01) - let itemCount = 100 - - // Insert items - for i in 0.. -// - -import XCTest -import CryptoKit -@testable import bitchat - -class ChannelVerificationTests: XCTestCase { - - var viewModel: ChatViewModel! - var mockMeshService: MockBluetoothMeshService! - - override func setUp() { - super.setUp() - viewModel = ChatViewModel() - mockMeshService = MockBluetoothMeshService() - viewModel.meshService = mockMeshService - } - - override func tearDown() { - viewModel = nil - mockMeshService = nil - super.tearDown() - } - - // MARK: - Key Derivation Tests - - func testChannelKeyDerivation() { - let password = "testPassword123" - let channel = "#testchannel" - - // Derive key twice with same inputs - let key1 = viewModel.deriveChannelKey(from: password, channelName: channel) - let key2 = viewModel.deriveChannelKey(from: password, channelName: channel) - - // Keys should be identical for same password/channel - XCTAssertEqual(key1.withUnsafeBytes { Data($0) }, - key2.withUnsafeBytes { Data($0) }) - } - - func testDifferentPasswordsProduceDifferentKeys() { - let channel = "#testchannel" - let password1 = "password123" - let password2 = "password456" - - let key1 = viewModel.deriveChannelKey(from: password1, channelName: channel) - let key2 = viewModel.deriveChannelKey(from: password2, channelName: channel) - - // Different passwords should produce different keys - XCTAssertNotEqual(key1.withUnsafeBytes { Data($0) }, - key2.withUnsafeBytes { Data($0) }) - } - - func testKeyCommitmentComputation() { - let password = "testPassword" - let channel = "#test" - - let key = viewModel.deriveChannelKey(from: password, channelName: channel) - let commitment1 = viewModel.computeKeyCommitment(for: key) - let commitment2 = viewModel.computeKeyCommitment(for: key) - - // Same key should produce same commitment - XCTAssertEqual(commitment1, commitment2) - - // Commitment should be 64 characters (SHA256 hex) - XCTAssertEqual(commitment1.count, 64) - } - - // MARK: - Verification Request/Response Tests - - func testChannelKeyVerifyRequestHandling() { - // Setup - let channel = "#test" - let password = "secret123" - let peerID = "peer123" - - // Join channel with password - _ = viewModel.joinChannel(channel, password: password) - - // Create verification request with matching key - let key = viewModel.deriveChannelKey(from: password, channelName: channel) - let commitment = viewModel.computeKeyCommitment(for: key) - - let request = ChannelKeyVerifyRequest( - channel: channel, - requesterID: peerID, - keyCommitment: commitment - ) - - // Handle request - viewModel.didReceiveChannelKeyVerifyRequest(request, from: peerID) - - // Should have sent a positive response - XCTAssertTrue(mockMeshService.sentVerifyResponse) - XCTAssertTrue(mockMeshService.lastVerifyResponse?.verified ?? false) - } - - func testChannelKeyVerifyResponseHandling() { - // Setup - let channel = "#test" - let peerID = "peer123" - - // Set initial verification status - viewModel.channelVerificationStatus[channel] = .verifying - viewModel.joinedChannels.insert(channel) - - // Create positive response - let response = ChannelKeyVerifyResponse( - channel: channel, - responderID: peerID, - verified: true - ) - - // Handle response - viewModel.didReceiveChannelKeyVerifyResponse(response, from: peerID) - - // Status should be verified - XCTAssertEqual(viewModel.channelVerificationStatus[channel], .verified) - } - - func testFailedVerificationResponse() { - // Setup - let channel = "#test" - let peerID = "peer123" - - viewModel.channelVerificationStatus[channel] = .verifying - viewModel.joinedChannels.insert(channel) - - // Create negative response - let response = ChannelKeyVerifyResponse( - channel: channel, - responderID: peerID, - verified: false - ) - - // Handle response - viewModel.didReceiveChannelKeyVerifyResponse(response, from: peerID) - - // Status should be failed - XCTAssertEqual(viewModel.channelVerificationStatus[channel], .failed) - } - - // MARK: - Password Update Tests - - func testChannelPasswordUpdateHandling() { - // Setup - let channel = "#test" - let ownerID = "owner123" - let newPassword = "newSecret456" - - // Join channel first - viewModel.joinedChannels.insert(channel) - viewModel.channelCreators[channel] = ownerID - - // Simulate having a Noise session - mockMeshService.mockNoiseSessionEstablished = true - - // Create password update - let newKey = viewModel.deriveChannelKey(from: newPassword, channelName: channel) - let newCommitment = viewModel.computeKeyCommitment(for: newKey) - - let update = ChannelPasswordUpdate( - channel: channel, - ownerID: ownerID, - ownerFingerprint: "test-fingerprint", // Mock fingerprint - encryptedPassword: Data(), // Would be encrypted in real scenario - newKeyCommitment: newCommitment - ) - - // Mock decryption to return new password - mockMeshService.mockDecryptedPassword = newPassword - - // Handle update - viewModel.didReceiveChannelPasswordUpdate(update, from: ownerID) - - // Should have updated local key - XCTAssertNotNil(viewModel.channelKeys[channel]) - XCTAssertEqual(viewModel.channelKeyCommitments[channel], newCommitment) - } -} - -// MARK: - Mock Mesh Service - -class MockBluetoothMeshService: BluetoothMeshService { - var sentVerifyResponse = false - var lastVerifyResponse: ChannelKeyVerifyResponse? - var mockNoiseSessionEstablished = false - var mockDecryptedPassword: String? - - // Mock the method without override since it's not overrideable - func mockSendChannelKeyVerifyResponse(_ response: ChannelKeyVerifyResponse, to peerID: String) { - sentVerifyResponse = true - lastVerifyResponse = response - // Call the real method if needed - super.sendChannelKeyVerifyResponse(response, to: peerID) - } - - override func getNoiseService() -> NoiseEncryptionService { - // Return actual noise service - tests should use real crypto - return super.getNoiseService() - } -} \ No newline at end of file diff --git a/bitchatTests/KeychainIntegrationTests.swift b/bitchatTests/KeychainIntegrationTests.swift deleted file mode 100644 index e5562edd..00000000 --- a/bitchatTests/KeychainIntegrationTests.swift +++ /dev/null @@ -1,183 +0,0 @@ -// -// KeychainIntegrationTests.swift -// bitchatTests -// -// Integration tests for keychain functionality -// - -import XCTest -@testable import bitchat - -class KeychainIntegrationTests: XCTestCase { - - override func setUp() { - super.setUp() - // Start with clean state - _ = KeychainManager.shared.deleteAllKeychainData() - } - - override func tearDown() { - // Clean up test data - _ = KeychainManager.shared.deleteAllKeychainData() - super.tearDown() - } - - // MARK: - App Lifecycle Simulation Tests - - func testCompleteAppLifecycle() { - print("\n🧪 Testing Complete App Lifecycle") - - // 1. First app launch - create identity - print("1️⃣ First launch...") - let service1 = NoiseEncryptionService() - let fingerprint1 = service1.getIdentityFingerprint() - print(" Initial fingerprint: \(fingerprint1)") - - // Verify stored in keychain - let keychainData1 = KeychainManager.shared.getIdentityKey(forKey: "noiseStaticKey") - XCTAssertNotNil(keychainData1, "Identity should be in keychain after first launch") - - // 2. App goes to background and comes back - print("2️⃣ Background/foreground cycle...") - let service2 = NoiseEncryptionService() - let fingerprint2 = service2.getIdentityFingerprint() - XCTAssertEqual(fingerprint1, fingerprint2, "Identity should persist through background") - - // 3. App terminates and relaunches - print("3️⃣ Terminate and relaunch...") - // In real app this would be a new process - let service3 = NoiseEncryptionService() - let fingerprint3 = service3.getIdentityFingerprint() - XCTAssertEqual(fingerprint1, fingerprint3, "Identity should persist through termination") - - // 4. User triggers panic mode - print("4️⃣ Panic mode triggered...") - service3.clearPersistentIdentity() - - // 5. App creates new identity - print("5️⃣ New identity after panic...") - let service4 = NoiseEncryptionService() - let fingerprint4 = service4.getIdentityFingerprint() - XCTAssertNotEqual(fingerprint1, fingerprint4, "New identity should be created after panic") - print(" New fingerprint: \(fingerprint4)") - - print("✅ Lifecycle test complete\n") - } - - // MARK: - Channel Password Tests - - func testChannelPasswordPersistence() { - let channel1 = "#testchannel1" - let channel2 = "#testchannel2" - let password1 = "password123" - let password2 = "differentpass456" - - // Save passwords - XCTAssertTrue(KeychainManager.shared.saveChannelPassword(password1, for: channel1)) - XCTAssertTrue(KeychainManager.shared.saveChannelPassword(password2, for: channel2)) - - // Retrieve passwords - XCTAssertEqual(KeychainManager.shared.getChannelPassword(for: channel1), password1) - XCTAssertEqual(KeychainManager.shared.getChannelPassword(for: channel2), password2) - - // Test getAllChannelPasswords - let allPasswords = KeychainManager.shared.getAllChannelPasswords() - XCTAssertEqual(allPasswords.count, 2) - XCTAssertEqual(allPasswords[channel1], password1) - XCTAssertEqual(allPasswords[channel2], password2) - - // Delete one password - XCTAssertTrue(KeychainManager.shared.deleteChannelPassword(for: channel1)) - XCTAssertNil(KeychainManager.shared.getChannelPassword(for: channel1)) - XCTAssertEqual(KeychainManager.shared.getChannelPassword(for: channel2), password2) - } - - // MARK: - Security Tests - - func testNoPlaintextInUserDefaults() { - // Create services to generate keys - _ = NoiseEncryptionService() - - // Check UserDefaults for any sensitive data - let keysToCheck = [ - "bitchat.noiseIdentityKey", - "bitchat.channelPasswords", - "bitchat.identityKey", - "bitchat.staticKey" - ] - - for key in keysToCheck { - let data = UserDefaults.standard.object(forKey: key) - XCTAssertNil(data, "UserDefaults should not contain: \(key)") - } - } - - // MARK: - Error Handling Tests - - func testKeychainErrorRecovery() { - // Test that the app can recover from keychain errors - // This is difficult to test without mocking, but we can verify - // that multiple save attempts don't crash - - let testData = "test".data(using: .utf8)! - - // Rapid saves - for i in 0..<10 { - let saved = KeychainManager.shared.saveIdentityKey(testData, forKey: "rapidTest\(i)") - XCTAssertTrue(saved, "Save \(i) should succeed") - } - - // Rapid deletes - for i in 0..<10 { - _ = KeychainManager.shared.deleteIdentityKey(forKey: "rapidTest\(i)") - } - } - - // MARK: - Cleanup Tests - - func testAggressiveCleanupOnlyDeletesBitchatItems() { - // This test verifies we don't delete other apps' keychain items - - // Add a non-bitchat item (simulating another app) - let otherAppQuery: [String: Any] = [ - kSecClass as String: kSecClassGenericPassword, - kSecAttrService as String: "com.otherapp.service", - kSecAttrAccount as String: "other_app_account", - kSecValueData as String: "other app data".data(using: .utf8)! - ] - - // Clean first - SecItemDelete(otherAppQuery as CFDictionary) - - // Add the item - let addStatus = SecItemAdd(otherAppQuery as CFDictionary, nil) - XCTAssertEqual(addStatus, errSecSuccess, "Should add other app item") - - // Add a bitchat legacy item - let bitchatQuery: [String: Any] = [ - kSecClass as String: kSecClassGenericPassword, - kSecAttrService as String: "com.bitchat.legacy", - kSecAttrAccount as String: "test_account", - kSecValueData as String: "bitchat data".data(using: .utf8)! - ] - SecItemDelete(bitchatQuery as CFDictionary) - let bitchatStatus = SecItemAdd(bitchatQuery as CFDictionary, nil) - XCTAssertEqual(bitchatStatus, errSecSuccess, "Should add bitchat item") - - // Run aggressive cleanup - _ = KeychainManager.shared.aggressiveCleanupLegacyItems() - - // Verify other app item still exists - var result: AnyObject? - let checkStatus = SecItemCopyMatching(otherAppQuery as CFDictionary, &result) - XCTAssertEqual(checkStatus, errSecSuccess, "Other app item should still exist") - - // Verify bitchat item was deleted - var bitchatResult: AnyObject? - let bitchatCheck = SecItemCopyMatching(bitchatQuery as CFDictionary, &bitchatResult) - XCTAssertEqual(bitchatCheck, errSecItemNotFound, "Bitchat legacy item should be deleted") - - // Clean up - SecItemDelete(otherAppQuery as CFDictionary) - } -} \ No newline at end of file diff --git a/bitchatTests/MessagePaddingTests.swift b/bitchatTests/MessagePaddingTests.swift deleted file mode 100644 index 0e84a9c5..00000000 --- a/bitchatTests/MessagePaddingTests.swift +++ /dev/null @@ -1,247 +0,0 @@ -// -// MessagePaddingTests.swift -// bitchatTests -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import XCTest -@testable import bitchat - -class MessagePaddingTests: XCTestCase { - - func testBasicPadding() { - let originalData = Data("Hello".utf8) - let targetSize = 256 - - let padded = MessagePadding.pad(originalData, toSize: targetSize) - XCTAssertEqual(padded.count, targetSize) - - let unpadded = MessagePadding.unpad(padded) - XCTAssertEqual(unpadded, originalData) - } - - func testMultipleBlockSizes() { - let testMessages = [ - "Hi", - "This is a longer message", - "This is an even longer message that should require a larger block size", - String(repeating: "A", count: 500) - ] - - for message in testMessages { - let data = Data(message.utf8) - let blockSize = MessagePadding.optimalBlockSize(for: data.count) - - // Block size should be reasonable - XCTAssertGreaterThan(blockSize, data.count) - XCTAssertTrue(MessagePadding.blockSizes.contains(blockSize) || blockSize == data.count) - - let padded = MessagePadding.pad(data, toSize: blockSize) - - // Check if padding was applied (only if needed padding <= 255) - let paddingNeeded = blockSize - data.count - if paddingNeeded <= 255 { - XCTAssertEqual(padded.count, blockSize) - let unpadded = MessagePadding.unpad(padded) - XCTAssertEqual(unpadded, data) - } else { - // No padding applied if more than 255 bytes needed - XCTAssertEqual(padded, data) - } - } - } - - func testPaddingWithLargeData() { - let largeData = Data(repeating: 0xFF, count: 1500) - let blockSize = MessagePadding.optimalBlockSize(for: largeData.count) - - // Should use 2048 block - XCTAssertEqual(blockSize, 2048) - - let padded = MessagePadding.pad(largeData, toSize: blockSize) - // Since padding needed (548 bytes) > 255, no padding is applied - XCTAssertEqual(padded.count, largeData.count) - XCTAssertEqual(padded, largeData) - - // Test with data that fits within PKCS#7 limits - let smallerData = Data(repeating: 0xAA, count: 1800) - let paddedSmaller = MessagePadding.pad(smallerData, toSize: 2048) - // Padding needed is 248 bytes, which is < 255, so padding should work - XCTAssertEqual(paddedSmaller.count, 2048) - - let unpaddedSmaller = MessagePadding.unpad(paddedSmaller) - XCTAssertEqual(unpaddedSmaller, smallerData) - } - - func testInvalidPadding() { - // Test empty data - let empty = Data() - let unpaddedEmpty = MessagePadding.unpad(empty) - XCTAssertEqual(unpaddedEmpty, empty) - - // Test data with invalid padding length - var invalidPadding = Data(repeating: 0x00, count: 100) - invalidPadding[99] = 255 // Invalid padding length - let result = MessagePadding.unpad(invalidPadding) - XCTAssertEqual(result, invalidPadding) // Should return original if invalid - } - - func testPaddingRandomness() { - // Ensure padding bytes are random (not predictable) - let data = Data("Test".utf8) - let padded1 = MessagePadding.pad(data, toSize: 256) - let padded2 = MessagePadding.pad(data, toSize: 256) - - // Same size - XCTAssertEqual(padded1.count, padded2.count) - - // But different padding bytes (with very high probability) - XCTAssertNotEqual(padded1, padded2) - - // Both should unpad to same data - XCTAssertEqual(MessagePadding.unpad(padded1), data) - XCTAssertEqual(MessagePadding.unpad(padded2), data) - } - - // MARK: - Edge Case Tests - - func testExactBlockSizeData() { - // Test data that exactly matches block sizes - for blockSize in MessagePadding.blockSizes { - // Account for 16 bytes encryption overhead - let dataSize = blockSize - 16 - let data = Data(repeating: 0x42, count: dataSize) - - let optimalSize = MessagePadding.optimalBlockSize(for: data.count) - XCTAssertEqual(optimalSize, blockSize) - - // Should fit exactly, no padding needed - let padded = MessagePadding.pad(data, toSize: blockSize) - XCTAssertEqual(padded.count, blockSize) - } - } - - func testOneByteOverBlockSize() { - // Test data that's one byte over block size threshold - let blockSizes = [256, 512, 1024] - - for blockSize in blockSizes { - // Create data that's 1 byte too large for current block - let dataSize = blockSize - 16 + 1 - let data = Data(repeating: 0x42, count: dataSize) - - let optimalSize = MessagePadding.optimalBlockSize(for: data.count) - - // Should jump to next block size - if blockSize < 2048 { - XCTAssertGreaterThan(optimalSize, blockSize) - } - } - } - - func testVerySmallData() { - // Test tiny messages - let tinyMessages = [ - Data([0x01]), - Data([0x01, 0x02]), - Data("a".utf8), - Data() - ] - - for data in tinyMessages { - let blockSize = MessagePadding.optimalBlockSize(for: data.count) - XCTAssertEqual(blockSize, 256) // Should use minimum block size - - if !data.isEmpty { - let padded = MessagePadding.pad(data, toSize: blockSize) - XCTAssertEqual(padded.count, blockSize) - - let unpadded = MessagePadding.unpad(padded) - XCTAssertEqual(unpadded, data) - } - } - } - - func testPaddingBoundaryConditions() { - // Test PKCS#7 padding limit (255 bytes) - let testCases = [ - (dataSize: 1, targetSize: 256), // Need 255 bytes padding - exactly at limit - (dataSize: 2, targetSize: 256), // Need 254 bytes padding - just under limit - (dataSize: 256, targetSize: 512), // Need 256 bytes padding - just over limit - ] - - for testCase in testCases { - let data = Data(repeating: 0x42, count: testCase.dataSize) - let padded = MessagePadding.pad(data, toSize: testCase.targetSize) - - let paddingNeeded = testCase.targetSize - testCase.dataSize - if paddingNeeded <= 255 { - // Padding should be applied - XCTAssertEqual(padded.count, testCase.targetSize) - - // Verify correct padding byte value - let paddingByte = padded[padded.count - 1] - XCTAssertEqual(Int(paddingByte), paddingNeeded) - - // Should unpad correctly - let unpadded = MessagePadding.unpad(padded) - XCTAssertEqual(unpadded, data) - } else { - // No padding applied - XCTAssertEqual(padded, data) - } - } - } - - func testCorruptedPadding() { - let data = Data("Test message".utf8) - let padded = MessagePadding.pad(data, toSize: 256) - - // Corrupt the padding length byte - var corrupted = padded - corrupted[corrupted.count - 1] = 0 - - let result = MessagePadding.unpad(corrupted) - XCTAssertEqual(result, corrupted) // Should return original when padding is invalid - - // Test with padding length > data size - var corruptedTooLarge = padded - corruptedTooLarge[corruptedTooLarge.count - 1] = 255 - - let result2 = MessagePadding.unpad(corruptedTooLarge) - XCTAssertEqual(result2, corruptedTooLarge) - } - - func testDataAlreadyLargerThanTarget() { - let data = Data(repeating: 0x42, count: 1000) - let tooSmallTarget = 256 - - // Should return original data when it's already larger than target - let result = MessagePadding.pad(data, toSize: tooSmallTarget) - XCTAssertEqual(result, data) - XCTAssertEqual(result.count, data.count) - } - - func testOptimalBlockSizeForLargeData() { - // Test data larger than largest block size - let hugeData = Data(repeating: 0x42, count: 5000) - let blockSize = MessagePadding.optimalBlockSize(for: hugeData.count) - - // Should return data size when larger than all blocks - XCTAssertEqual(blockSize, hugeData.count) - } - - func testPaddingPerformance() { - let data = Data(repeating: 0x42, count: 1000) - - measure { - for _ in 0..<1000 { - let blockSize = MessagePadding.optimalBlockSize(for: data.count) - let padded = MessagePadding.pad(data, toSize: blockSize) - _ = MessagePadding.unpad(padded) - } - } - } -} \ No newline at end of file diff --git a/bitchatTests/NoiseChannelEncryptionTests.swift b/bitchatTests/NoiseChannelEncryptionTests.swift deleted file mode 100644 index 41a0d343..00000000 --- a/bitchatTests/NoiseChannelEncryptionTests.swift +++ /dev/null @@ -1,222 +0,0 @@ -// -// NoiseChannelEncryptionTests.swift -// bitchatTests -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import XCTest -import CryptoKit -@testable import bitchat - -class NoiseChannelEncryptionTests: XCTestCase { - - // MARK: - Channel Key Derivation with Fingerprint Tests - - func testChannelEncryptionWithFingerprint() { - let encryption = NoiseChannelEncryption() - let password = "test-password-123" - let channel = "#secure-channel" - let fingerprint = "e36f7993abc123def456789012345678901234567890abcdef1234567890abcd" - - // Set channel password with fingerprint - encryption.setChannelPasswordForCreator(password, channel: channel, creatorFingerprint: fingerprint) - - // Test encryption - let message = "This is a secret message" - do { - let encrypted = try encryption.encryptChannelMessage(message, for: channel) - - // Ensure it's actually encrypted - XCTAssertNotEqual(encrypted, Data(message.utf8)) - XCTAssertGreaterThan(encrypted.count, message.count) // Should have IV + tag - - // Test decryption - let decrypted = try encryption.decryptChannelMessage(encrypted, for: channel) - XCTAssertEqual(decrypted, message) - - } catch { - XCTFail("Encryption/decryption failed: \(error)") - } - } - - func testBackwardsCompatibilityWithoutFingerprint() { - let encryption = NoiseChannelEncryption() - let password = "test-password-123" - let channel = "#legacy-channel" - - // Set password without fingerprint (legacy mode) - encryption.setChannelPassword(password, for: channel) - - // Encrypt message - let message = "Legacy message" - do { - let encrypted = try encryption.encryptChannelMessage(message, for: channel) - - // Should still work - let decrypted = try encryption.decryptChannelMessage(encrypted, for: channel) - XCTAssertEqual(decrypted, message) - - } catch { - XCTFail("Legacy encryption failed: \(error)") - } - } - - func testDifferentFingerprintsProduceDifferentEncryption() throws { - let encryption1 = NoiseChannelEncryption() - let encryption2 = NoiseChannelEncryption() - - let password = "same-password" - let channel = "#test-channel" - let message = "Test message" - - let fingerprint1 = "1111111111111111111111111111111111111111111111111111111111111111" - let fingerprint2 = "2222222222222222222222222222222222222222222222222222222222222222" - - // Set same password with different fingerprints - encryption1.setChannelPasswordForCreator(password, channel: channel, creatorFingerprint: fingerprint1) - encryption2.setChannelPasswordForCreator(password, channel: channel, creatorFingerprint: fingerprint2) - - // Encrypt same message - let encrypted1 = try encryption1.encryptChannelMessage(message, for: channel) - let encrypted2 = try encryption2.encryptChannelMessage(message, for: channel) - - // Encrypted data should be different (different keys due to different salts) - // Note: We can't directly compare ciphertexts due to random IVs, but we can verify they don't decrypt with wrong key - - // Try to decrypt with wrong fingerprint - should fail - encryption1.removeChannelPassword(for: channel) - encryption1.setChannelPasswordForCreator(password, channel: channel, creatorFingerprint: fingerprint2) - - XCTAssertThrowsError(try encryption1.decryptChannelMessage(encrypted1, for: channel)) { error in - // Should fail to decrypt because key is different - } - } - - // MARK: - Key Management Tests - - func testChannelKeyPersistence() { - let encryption = NoiseChannelEncryption() - let password = "persistent-password" - let channel = "#persistent-channel" - - // Set and save password - encryption.setChannelPassword(password, for: channel) - - // Verify it's saved in keychain - XCTAssertTrue(encryption.loadChannelPassword(for: channel)) - - // Create new instance and load - let encryption2 = NoiseChannelEncryption() - XCTAssertTrue(encryption2.loadChannelPassword(for: channel)) - - // Should be able to decrypt messages from first instance - do { - let message = "Cross-instance message" - let encrypted = try encryption.encryptChannelMessage(message, for: channel) - let decrypted = try encryption2.decryptChannelMessage(encrypted, for: channel) - XCTAssertEqual(decrypted, message) - } catch { - XCTFail("Cross-instance encryption failed: \(error)") - } - - // Clean up - encryption.removeChannelPassword(for: channel) - } - - func testChannelKeyPacketCreation() { - let encryption = NoiseChannelEncryption() - let password = "shared-password" - let channel = "#shared-channel" - - // Create key packet - guard let packet = encryption.createChannelKeyPacket(password: password, channel: channel) else { - XCTFail("Failed to create key packet") - return - } - - // Verify packet structure - XCTAssertGreaterThan(packet.count, 32) // Should have channel name + password + metadata - - // Process packet in another instance - let encryption2 = NoiseChannelEncryption() - guard let (extractedChannel, extractedPassword) = encryption2.processChannelKeyPacket(packet) else { - XCTFail("Failed to process key packet") - return - } - - XCTAssertEqual(extractedChannel, channel) - XCTAssertEqual(extractedPassword, password) - } - - // MARK: - Error Handling Tests - - func testDecryptionWithWrongPassword() { - let encryption = NoiseChannelEncryption() - let channel = "#error-test" - - // Encrypt with one password - encryption.setChannelPassword("correct-password", for: channel) - let message = "Secret message" - - do { - let encrypted = try encryption.encryptChannelMessage(message, for: channel) - - // Change to wrong password - encryption.setChannelPassword("wrong-password", for: channel) - - // Should fail to decrypt - XCTAssertThrowsError(try encryption.decryptChannelMessage(encrypted, for: channel)) - - } catch { - XCTFail("Encryption failed: \(error)") - } - } - - func testEncryptionWithoutPassword() { - let encryption = NoiseChannelEncryption() - let channel = "#no-password" - - // Try to encrypt without setting password - XCTAssertThrowsError(try encryption.encryptChannelMessage("Test", for: channel)) { error in - // Should throw channelKeyMissing error - if let encryptionError = error as? NoiseChannelEncryptionError { - XCTAssertEqual(encryptionError, NoiseChannelEncryptionError.channelKeyMissing) - } else { - XCTFail("Wrong error type") - } - } - } - - func testInvalidChannelName() { - let encryption = NoiseChannelEncryption() - - // Empty channel - XCTAssertThrowsError(try encryption.encryptChannelMessage("Test", for: "")) - - // Channel without # prefix - XCTAssertThrowsError(try encryption.encryptChannelMessage("Test", for: "invalid")) - } - - // MARK: - Performance Tests - - func testEncryptionPerformance() { - let encryption = NoiseChannelEncryption() - let channel = "#perf-test" - let fingerprint = "e36f7993abc123def456789012345678901234567890abcdef1234567890abcd" - - encryption.setChannelPasswordForCreator("test-password", channel: channel, creatorFingerprint: fingerprint) - - let message = String(repeating: "Hello World! ", count: 100) // ~1.3KB message - - measure { - do { - let encrypted = try encryption.encryptChannelMessage(message, for: channel) - _ = try encryption.decryptChannelMessage(encrypted, for: channel) - } catch { - XCTFail("Performance test failed: \(error)") - } - } - } -} \ No newline at end of file diff --git a/bitchatTests/NoiseIdentityPersistenceTests.swift b/bitchatTests/NoiseIdentityPersistenceTests.swift deleted file mode 100644 index c96be9b0..00000000 --- a/bitchatTests/NoiseIdentityPersistenceTests.swift +++ /dev/null @@ -1,202 +0,0 @@ -// -// NoiseIdentityPersistenceTests.swift -// bitchatTests -// -// Tests for Noise Protocol identity key persistence -// - -import XCTest -@testable import bitchat - -class NoiseIdentityPersistenceTests: XCTestCase { - - override func setUp() { - super.setUp() - // Clean up any existing test data - cleanupTestData() - } - - override func tearDown() { - // Clean up after tests - cleanupTestData() - super.tearDown() - } - - private func cleanupTestData() { - // Clear any existing identity keys - _ = KeychainManager.shared.deleteIdentityKey(forKey: "noiseStaticKey") - _ = KeychainManager.shared.deleteIdentityKey(forKey: "messageRetentionKey") - - // Clear any UserDefaults that might interfere - UserDefaults.standard.removeObject(forKey: "bitchat.noiseIdentityKey") - UserDefaults.standard.removeObject(forKey: "bitchat.messageRetentionKey") - UserDefaults.standard.synchronize() - } - - // MARK: - Identity Persistence Tests - - func testIdentityPersistsAcrossInstances() { - // Create first instance - let service1 = NoiseEncryptionService() - let fingerprint1 = service1.getIdentityFingerprint() - let publicKey1 = service1.getStaticPublicKeyData() - - XCTAssertFalse(fingerprint1.isEmpty, "Fingerprint should not be empty") - XCTAssertEqual(publicKey1.count, 32, "Public key should be 32 bytes") - - // Create second instance - let service2 = NoiseEncryptionService() - let fingerprint2 = service2.getIdentityFingerprint() - let publicKey2 = service2.getStaticPublicKeyData() - - // Verify same identity - XCTAssertEqual(fingerprint1, fingerprint2, "Fingerprint should persist across instances") - XCTAssertEqual(publicKey1, publicKey2, "Public key should persist across instances") - } - - func testIdentityNotStoredInUserDefaults() { - // Create service to generate identity - _ = NoiseEncryptionService() - - // Verify identity is NOT in UserDefaults - let userDefaultsData = UserDefaults.standard.data(forKey: "bitchat.noiseIdentityKey") - XCTAssertNil(userDefaultsData, "Identity key should NOT be stored in UserDefaults") - } - - func testIdentityStoredInKeychain() { - // Create service to generate identity - _ = NoiseEncryptionService() - - // Verify identity IS in Keychain - let keychainData = KeychainManager.shared.getIdentityKey(forKey: "noiseStaticKey") - XCTAssertNotNil(keychainData, "Identity key should be stored in Keychain") - XCTAssertEqual(keychainData?.count, 32, "Identity key should be 32 bytes") - } - - func testPanicModeClearsIdentity() { - // Create service and get initial fingerprint - let service1 = NoiseEncryptionService() - let fingerprint1 = service1.getIdentityFingerprint() - - // Clear identity (panic mode) - service1.clearPersistentIdentity() - - // Create new service and verify new identity - let service2 = NoiseEncryptionService() - let fingerprint2 = service2.getIdentityFingerprint() - - XCTAssertNotEqual(fingerprint1, fingerprint2, "New identity should be created after panic mode") - } - - func testMultipleRapidInstantiations() { - // Create multiple services rapidly - var fingerprints: [String] = [] - - for _ in 0..<10 { - let service = NoiseEncryptionService() - fingerprints.append(service.getIdentityFingerprint()) - } - - // Verify all fingerprints are the same - let firstFingerprint = fingerprints[0] - for fingerprint in fingerprints { - XCTAssertEqual(fingerprint, firstFingerprint, "All instances should have same identity") - } - } - - func testKeychainAccessFailureHandling() { - // This test would require mocking KeychainManager, but we can at least - // verify the service initializes even if keychain is problematic - let service = NoiseEncryptionService() - XCTAssertFalse(service.getIdentityFingerprint().isEmpty, "Service should initialize with valid identity") - } - - // MARK: - Message Retention Key Tests - // Message retention feature has been removed - - // MARK: - Keychain Service Name Tests - - func testKeychainServiceName() { - // Verify we're using the correct service name - let expectedService = "chat.bitchat" - - // Save a test item - let testKey = "test_service_verification" - let testData = "test".data(using: .utf8)! - _ = KeychainManager.shared.saveIdentityKey(testData, forKey: testKey) - - // Query directly to verify service name - let query: [String: Any] = [ - kSecClass as String: kSecClassGenericPassword, - kSecAttrService as String: expectedService, - kSecAttrAccount as String: "identity_\(testKey)", - kSecMatchLimit as String: kSecMatchLimitOne, - kSecReturnData as String: true - ] - - var result: AnyObject? - let status = SecItemCopyMatching(query as CFDictionary, &result) - - XCTAssertEqual(status, errSecSuccess, "Should find item with expected service name") - XCTAssertNotNil(result as? Data, "Should retrieve data") - - // Clean up - _ = KeychainManager.shared.deleteIdentityKey(forKey: testKey) - } - - // MARK: - Legacy Cleanup Tests - - func testLegacyKeychainCleanup() { - // Create some legacy items with old service names - let legacyServices = [ - "com.bitchat.passwords", - "com.bitchat.noise.identity", - "bitchat.keychain" - ] - - // Add test items with legacy service names - for service in legacyServices { - let addQuery: [String: Any] = [ - kSecClass as String: kSecClassGenericPassword, - kSecAttrService as String: service, - kSecAttrAccount as String: "test_legacy_item", - kSecValueData as String: "test".data(using: .utf8)! - ] - - // Add item (ignore if already exists) - _ = SecItemAdd(addQuery as CFDictionary, nil) - } - - // Run aggressive cleanup - let deletedCount = KeychainManager.shared.aggressiveCleanupLegacyItems() - - // Verify items were deleted - XCTAssertGreaterThan(deletedCount, 0, "Should delete at least some legacy items") - - // Verify legacy items are gone - for service in legacyServices { - let query: [String: Any] = [ - kSecClass as String: kSecClassGenericPassword, - kSecAttrService as String: service, - kSecMatchLimit as String: kSecMatchLimitOne - ] - - var result: AnyObject? - let status = SecItemCopyMatching(query as CFDictionary, &result) - - XCTAssertEqual(status, errSecItemNotFound, "Legacy service '\(service)' should be deleted") - } - } - - // MARK: - Performance Tests - - func testIdentityLoadPerformance() { - // Ensure identity exists - _ = NoiseEncryptionService() - - measure { - // Measure how long it takes to load identity - _ = NoiseEncryptionService() - } - } -} \ No newline at end of file diff --git a/bitchatTests/NoiseKeyRotationTests.swift b/bitchatTests/NoiseKeyRotationTests.swift deleted file mode 100644 index 159bac32..00000000 --- a/bitchatTests/NoiseKeyRotationTests.swift +++ /dev/null @@ -1,310 +0,0 @@ -// -// NoiseKeyRotationTests.swift -// bitchatTests -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import XCTest -import CryptoKit -@testable import bitchat - -class NoiseKeyRotationTests: XCTestCase { - - var keyRotation: NoiseChannelKeyRotation! - - override func setUp() { - super.setUp() - keyRotation = NoiseChannelKeyRotation() - } - - override func tearDown() { - // Clean up test data - keyRotation.clearEpochs(for: "#test-channel") - super.tearDown() - } - - // MARK: - Basic Key Rotation Tests - - func testInitialKeyGeneration() { - let channel = "#test-channel" - let password = "test-password" - let fingerprint = "abc123def456" - - // Get initial key - guard let rotatedKey = keyRotation.getCurrentKey( - for: channel, - basePassword: password, - creatorFingerprint: fingerprint - ) else { - XCTFail("Failed to get initial key") - return - } - - XCTAssertEqual(rotatedKey.epoch.epochNumber, 1) - XCTAssertTrue(rotatedKey.isActive) - XCTAssertNotNil(rotatedKey.key) - } - - func testKeyRotation() { - let channel = "#test-channel" - let password = "test-password" - let fingerprint = "abc123def456" - - // Get initial key - let initialKey = keyRotation.getCurrentKey( - for: channel, - basePassword: password, - creatorFingerprint: fingerprint - ) - - // Rotate key - let newEpoch = keyRotation.rotateChannelKey( - for: channel, - basePassword: password, - creatorFingerprint: fingerprint - ) - - XCTAssertEqual(newEpoch.epochNumber, 2) - XCTAssertNotNil(newEpoch.previousEpochCommitment) - - // Get new current key - let rotatedKey = keyRotation.getCurrentKey( - for: channel, - basePassword: password, - creatorFingerprint: fingerprint - ) - - XCTAssertEqual(rotatedKey?.epoch.epochNumber, 2) - - // Keys should be different - if let initial = initialKey, let rotated = rotatedKey { - XCTAssertNotEqual( - initial.key.withUnsafeBytes { Data($0) }, - rotated.key.withUnsafeBytes { Data($0) } - ) - } - } - - func testKeyRotationNeeded() { - let channel = "#test-channel" - let password = "test-password" - let fingerprint = "abc123def456" - - // Initially needs rotation (no epochs) - XCTAssertTrue(keyRotation.needsKeyRotation(for: channel)) - - // After getting initial key, shouldn't need rotation - _ = keyRotation.getCurrentKey( - for: channel, - basePassword: password, - creatorFingerprint: fingerprint - ) - - XCTAssertFalse(keyRotation.needsKeyRotation(for: channel)) - - // Note: We can't easily test time-based rotation need without - // modifying internal state or waiting 22+ hours - } - - // MARK: - Multiple Epoch Tests - - func testMultipleEpochsForDecryption() { - let channel = "#test-channel" - let password = "test-password" - let fingerprint = "abc123def456" - - // Create initial epoch - _ = keyRotation.getCurrentKey( - for: channel, - basePassword: password, - creatorFingerprint: fingerprint - ) - - // Rotate multiple times - for _ in 0..<3 { - _ = keyRotation.rotateChannelKey( - for: channel, - basePassword: password, - creatorFingerprint: fingerprint - ) - } - - // Get valid keys for decryption - let validKeys = keyRotation.getValidKeysForDecryption( - channel: channel, - basePassword: password, - creatorFingerprint: fingerprint - ) - - // Should have at least the current epoch - XCTAssertGreaterThanOrEqual(validKeys.count, 1) - - // Check that we have the latest epoch - XCTAssertTrue(validKeys.contains { $0.epoch.epochNumber == 4 }) - } - - func testEpochKeyDerivationConsistency() { - let channel = "#test-channel" - let password = "test-password" - let fingerprint = "abc123def456" - - // Get key for epoch 1 - let key1a = keyRotation.getCurrentKey( - for: channel, - basePassword: password, - creatorFingerprint: fingerprint - ) - - // Get the same key again - let key1b = keyRotation.getCurrentKey( - for: channel, - basePassword: password, - creatorFingerprint: fingerprint - ) - - // Keys should be identical for same epoch - if let a = key1a, let b = key1b { - XCTAssertEqual( - a.key.withUnsafeBytes { Data($0) }, - b.key.withUnsafeBytes { Data($0) } - ) - XCTAssertEqual(a.epoch.epochNumber, b.epoch.epochNumber) - } - } - - // MARK: - Edge Cases - - func testMaxEpochLimit() { - let channel = "#test-channel" - let password = "test-password" - let fingerprint = "abc123def456" - - // Create initial epoch - _ = keyRotation.getCurrentKey( - for: channel, - basePassword: password, - creatorFingerprint: fingerprint - ) - - // Rotate many times (more than max stored epochs) - for _ in 0..<10 { - _ = keyRotation.rotateChannelKey( - for: channel, - basePassword: password, - creatorFingerprint: fingerprint - ) - } - - // Get all valid epochs - let validKeys = keyRotation.getValidKeysForDecryption( - channel: channel, - basePassword: password, - creatorFingerprint: fingerprint - ) - - // Should not exceed reasonable limit - XCTAssertLessThanOrEqual(validKeys.count, 7) // maxStoredEpochs - } - - func testDifferentChannelsDifferentEpochs() { - let password = "test-password" - let fingerprint = "abc123def456" - - let channel1 = "#channel-1" - let channel2 = "#channel-2" - - // Get keys for both channels - let key1 = keyRotation.getCurrentKey( - for: channel1, - basePassword: password, - creatorFingerprint: fingerprint - ) - - let key2 = keyRotation.getCurrentKey( - for: channel2, - basePassword: password, - creatorFingerprint: fingerprint - ) - - // Keys should be different even with same password - if let k1 = key1, let k2 = key2 { - XCTAssertNotEqual( - k1.key.withUnsafeBytes { Data($0) }, - k2.key.withUnsafeBytes { Data($0) } - ) - } - } - - // MARK: - Integration Tests - - func testKeyRotationWithEncryption() throws { - let channel = "#test-channel" - let password = "test-password" - let fingerprint = "abc123def456" - - // Get initial key - guard let initialRotatedKey = keyRotation.getCurrentKey( - for: channel, - basePassword: password, - creatorFingerprint: fingerprint - ) else { - XCTFail("Failed to get initial key") - return - } - - // Encrypt a message with initial key - let message = "Test message before rotation" - let nonce = ChaChaPoly.Nonce() - let sealed1 = try ChaChaPoly.seal( - Data(message.utf8), - using: initialRotatedKey.key, - nonce: nonce - ) - - // Rotate key - _ = keyRotation.rotateChannelKey( - for: channel, - basePassword: password, - creatorFingerprint: fingerprint - ) - - // Get new key - guard let newRotatedKey = keyRotation.getCurrentKey( - for: channel, - basePassword: password, - creatorFingerprint: fingerprint - ) else { - XCTFail("Failed to get rotated key") - return - } - - // New key should not decrypt old message - XCTAssertThrowsError( - try ChaChaPoly.open(sealed1, using: newRotatedKey.key) - ) - - // But we should still be able to decrypt with old epoch key - let validKeys = keyRotation.getValidKeysForDecryption( - channel: channel, - basePassword: password, - creatorFingerprint: fingerprint - ) - - // Try each valid key until one works - var decrypted = false - for rotatedKey in validKeys { - do { - let plaintext = try ChaChaPoly.open(sealed1, using: rotatedKey.key) - XCTAssertEqual(String(data: plaintext, encoding: .utf8), message) - decrypted = true - break - } catch { - continue - } - } - - XCTAssertTrue(decrypted, "Failed to decrypt with any valid key") - } -} \ No newline at end of file diff --git a/bitchatTests/NoiseProtocolTests.swift b/bitchatTests/NoiseProtocolTests.swift deleted file mode 100644 index 934537d6..00000000 --- a/bitchatTests/NoiseProtocolTests.swift +++ /dev/null @@ -1,369 +0,0 @@ -// -// NoiseProtocolTests.swift -// bitchatTests -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import XCTest -import CryptoKit -@testable import bitchat - -class NoiseProtocolTests: XCTestCase { - - // MARK: - Cipher State Tests - - func testCipherStateEncryptDecrypt() throws { - let key = SymmetricKey(size: .bits256) - let cipher = NoiseCipherState(key: key) - - let plaintext = "Hello, Noise Protocol!".data(using: .utf8)! - let associatedData = "metadata".data(using: .utf8)! - - // Encrypt - let ciphertext = try cipher.encrypt(plaintext: plaintext, associatedData: associatedData) - - // Create new cipher with same key for decryption - let decryptCipher = NoiseCipherState(key: key) - let decrypted = try decryptCipher.decrypt(ciphertext: ciphertext, associatedData: associatedData) - - XCTAssertEqual(plaintext, decrypted) - } - - func testCipherStateNonceIncrement() throws { - let key = SymmetricKey(size: .bits256) - let cipher = NoiseCipherState(key: key) - - let plaintext = "Test".data(using: .utf8)! - - // Encrypt multiple messages - let ct1 = try cipher.encrypt(plaintext: plaintext) - let ct2 = try cipher.encrypt(plaintext: plaintext) - let ct3 = try cipher.encrypt(plaintext: plaintext) - - // All ciphertexts should be different due to nonce increment - XCTAssertNotEqual(ct1, ct2) - XCTAssertNotEqual(ct2, ct3) - XCTAssertNotEqual(ct1, ct3) - } - - // MARK: - Symmetric State Tests - - func testSymmetricStateInitialization() { - let protocolName = "Noise_XX_25519_ChaChaPoly_SHA256" - let state = NoiseSymmetricState(protocolName: protocolName) - - // Hash should be initialized with protocol name - let hash = state.getHandshakeHash() - XCTAssertEqual(hash.count, 32) // SHA256 output - } - - func testSymmetricStateMixKey() throws { - let state = NoiseSymmetricState(protocolName: "Noise_XX_25519_ChaChaPoly_SHA256") - - let keyMaterial = Data(repeating: 0x42, count: 32) - state.mixKey(keyMaterial) - - // After mixKey, cipher should be initialized - let plaintext = "Test".data(using: .utf8)! - let encrypted = try state.encryptAndHash(plaintext) - - XCTAssertNotEqual(plaintext, encrypted) - XCTAssertEqual(encrypted.count, plaintext.count + 16) // ChaCha20Poly1305 adds 16-byte tag - } - - // MARK: - Handshake State Tests - - func testNoiseXXHandshakeComplete() throws { - // Create initiator and responder - let initiatorStatic = Curve25519.KeyAgreement.PrivateKey() - let responderStatic = Curve25519.KeyAgreement.PrivateKey() - - var initiator = NoiseHandshakeState(role: .initiator, pattern: .XX, localStaticKey: initiatorStatic) - var responder = NoiseHandshakeState(role: .responder, pattern: .XX, localStaticKey: responderStatic) - - // Message 1: initiator -> responder (e) - let msg1 = try initiator.writeMessage() - _ = try responder.readMessage(msg1) - - // Message 2: responder -> initiator (e, ee, s, es) - let msg2 = try responder.writeMessage() - _ = try initiator.readMessage(msg2) - - // Message 3: initiator -> responder (s, se) - let msg3 = try initiator.writeMessage() - _ = try responder.readMessage(msg3) - - // Both should have completed handshake - XCTAssertTrue(initiator.isHandshakeComplete()) - XCTAssertTrue(responder.isHandshakeComplete()) - - // Get transport ciphers - let (initSend, initRecv) = try initiator.getTransportCiphers() - let (respSend, respRecv) = try responder.getTransportCiphers() - - // Test transport encryption - let testMessage = "Secret message".data(using: .utf8)! - let encrypted = try initSend.encrypt(plaintext: testMessage) - let decrypted = try respRecv.decrypt(ciphertext: encrypted) - - XCTAssertEqual(testMessage, decrypted) - - // Test reverse direction - let encrypted2 = try respSend.encrypt(plaintext: testMessage) - let decrypted2 = try initRecv.decrypt(ciphertext: encrypted2) - - XCTAssertEqual(testMessage, decrypted2) - } - - func testNoiseXXWithPayloads() throws { - let initiatorStatic = Curve25519.KeyAgreement.PrivateKey() - let responderStatic = Curve25519.KeyAgreement.PrivateKey() - - var initiator = NoiseHandshakeState(role: .initiator, pattern: .XX, localStaticKey: initiatorStatic) - var responder = NoiseHandshakeState(role: .responder, pattern: .XX, localStaticKey: responderStatic) - - // Message 1 with payload - let payload1 = "Hello from initiator".data(using: .utf8)! - let msg1 = try initiator.writeMessage(payload: payload1) - let received1 = try responder.readMessage(msg1) - XCTAssertEqual(payload1, received1) - - // Message 2 with payload - let payload2 = "Hello from responder".data(using: .utf8)! - let msg2 = try responder.writeMessage(payload: payload2) - let received2 = try initiator.readMessage(msg2) - XCTAssertEqual(payload2, received2) - - // Message 3 with payload - let payload3 = "Final message".data(using: .utf8)! - let msg3 = try initiator.writeMessage(payload: payload3) - let received3 = try responder.readMessage(msg3) - XCTAssertEqual(payload3, received3) - } - - // MARK: - Session Tests - - func testNoiseSessionLifecycle() throws { - let aliceKey = Curve25519.KeyAgreement.PrivateKey() - let bobKey = Curve25519.KeyAgreement.PrivateKey() - - let aliceSession = NoiseSession(peerID: "bob", role: .initiator, localStaticKey: aliceKey) - let bobSession = NoiseSession(peerID: "alice", role: .responder, localStaticKey: bobKey) - - // Start handshake - only initiator calls startHandshake - let msg1 = try aliceSession.startHandshake() - XCTAssertFalse(msg1.isEmpty, "Initiator should send first message") - - // Process messages - responder will auto-initialize on first message - let msg2 = try bobSession.processHandshakeMessage(msg1)! - XCTAssertFalse(msg2.isEmpty, "Responder should send second message") - - let msg3 = try aliceSession.processHandshakeMessage(msg2)! - XCTAssertFalse(msg3.isEmpty, "Initiator should send third message") - - let finalMsg = try bobSession.processHandshakeMessage(msg3) - XCTAssertNil(finalMsg, "No more messages after handshake complete") - - // Both sessions should be established - XCTAssertTrue(aliceSession.isEstablished(), "Alice session should be established") - XCTAssertTrue(bobSession.isEstablished(), "Bob session should be established") - - // Test encryption - let plaintext = "Test message".data(using: .utf8)! - let encrypted = try aliceSession.encrypt(plaintext) - let decrypted = try bobSession.decrypt(encrypted) - - XCTAssertEqual(plaintext, decrypted) - } - - // MARK: - Integration Tests - - func testNoiseEncryptionServiceIntegration() throws { - // Clean up any existing keys - _ = KeychainManager.shared.deleteIdentityKey(forKey: "noiseStaticKey") - - let service1 = NoiseEncryptionService() - let service2 = NoiseEncryptionService() - - let peer1ID = "peer1" - let peer2ID = "peer2" - - // Initiate handshake from peer1 to peer2 - let handshake1 = try service1.initiateHandshake(with: peer2ID) - - // Process on peer2 and get response - let handshake2 = try service2.processHandshakeMessage(from: peer1ID, message: handshake1)! - - // Process response on peer1 - let handshake3 = try service1.processHandshakeMessage(from: peer2ID, message: handshake2)! - - // Final message on peer2 - let final = try service2.processHandshakeMessage(from: peer1ID, message: handshake3) - XCTAssertNil(final) - - // Both should have established sessions - XCTAssertTrue(service1.hasEstablishedSession(with: peer2ID)) - XCTAssertTrue(service2.hasEstablishedSession(with: peer1ID)) - - // Test message encryption - let message = "Secret message".data(using: .utf8)! - let encrypted = try service1.encrypt(message, for: peer2ID) - let decrypted = try service2.decrypt(encrypted, from: peer1ID) - - XCTAssertEqual(message, decrypted) - } - - func testBidirectionalNoiseSession() throws { - // This test verifies that messages can be sent in both directions after handshake - let aliceKey = Curve25519.KeyAgreement.PrivateKey() - let bobKey = Curve25519.KeyAgreement.PrivateKey() - - // Create session managers - let aliceManager = NoiseSessionManager(localStaticKey: aliceKey) - let bobManager = NoiseSessionManager(localStaticKey: bobKey) - - // Alice initiates handshake (msg1: -> e) - let msg1 = try aliceManager.initiateHandshake(with: "bob") - XCTAssertFalse(msg1.isEmpty) - - // Bob processes and responds (msg2: <- e, ee, s, es) - let msg2 = try bobManager.handleIncomingHandshake(from: "alice", message: msg1) - XCTAssertNotNil(msg2) - XCTAssertFalse(msg2!.isEmpty) - - // Alice processes and sends final message (msg3: -> s, se) - let msg3 = try aliceManager.handleIncomingHandshake(from: "bob", message: msg2!) - XCTAssertNotNil(msg3) - XCTAssertFalse(msg3!.isEmpty) - - // Bob processes final message - let msg4 = try bobManager.handleIncomingHandshake(from: "alice", message: msg3!) - XCTAssertNil(msg4) // Now handshake is complete - - // Verify both sessions are established - XCTAssertTrue(aliceManager.getSession(for: "bob")?.isEstablished() ?? false) - XCTAssertTrue(bobManager.getSession(for: "alice")?.isEstablished() ?? false) - - // Test Alice -> Bob - let aliceMessage = "Hello Bob!".data(using: .utf8)! - let encrypted1 = try aliceManager.encrypt(aliceMessage, for: "bob") - let decrypted1 = try bobManager.decrypt(encrypted1, from: "alice") - XCTAssertEqual(decrypted1, aliceMessage) - - // Test Bob -> Alice - let bobMessage = "Hello Alice!".data(using: .utf8)! - let encrypted2 = try bobManager.encrypt(bobMessage, for: "alice") - let decrypted2 = try aliceManager.decrypt(encrypted2, from: "bob") - XCTAssertEqual(decrypted2, bobMessage) - - // Test multiple messages in both directions - for i in 1...5 { - // Alice -> Bob - let msg = "Message \(i) from Alice".data(using: .utf8)! - let enc = try aliceManager.encrypt(msg, for: "bob") - let dec = try bobManager.decrypt(enc, from: "alice") - XCTAssertEqual(dec, msg) - - // Bob -> Alice - let msg2 = "Message \(i) from Bob".data(using: .utf8)! - let enc2 = try bobManager.encrypt(msg2, for: "alice") - let dec2 = try aliceManager.decrypt(enc2, from: "bob") - XCTAssertEqual(dec2, msg2) - } - } - - // MARK: - Channel Encryption Tests - - func testChannelEncryption() throws { - let channelEnc = NoiseChannelEncryption() - let channel = "#test-channel" - let password = "super-secret-password" - - // Set channel password - channelEnc.setChannelPassword(password, for: channel) - - // Encrypt message - let message = "Hello channel!" - let encrypted = try channelEnc.encryptChannelMessage(message, for: channel) - - // Decrypt message - let decrypted = try channelEnc.decryptChannelMessage(encrypted, for: channel) - - XCTAssertEqual(message, decrypted) - } - - func testChannelKeyDerivation() { - let channelEnc = NoiseChannelEncryption() - let password = "test-password" - - // Same password and channel should produce same key - let key1 = channelEnc.deriveChannelKey(from: password, channel: "#channel1") - let key2 = channelEnc.deriveChannelKey(from: password, channel: "#channel1") - - // Different channels should produce different keys - let key3 = channelEnc.deriveChannelKey(from: password, channel: "#channel2") - - // Can't directly compare SymmetricKey, but we can test encryption - let testData = "test".data(using: .utf8)! - let nonce = ChaChaPoly.Nonce() - - let sealed1 = try! ChaChaPoly.seal(testData, using: key1, nonce: nonce) - let sealed2 = try! ChaChaPoly.seal(testData, using: key2, nonce: nonce) - - XCTAssertEqual(sealed1.ciphertext, sealed2.ciphertext) - - // Different key should produce different ciphertext - let sealed3 = try! ChaChaPoly.seal(testData, using: key3, nonce: nonce) - XCTAssertNotEqual(sealed1.ciphertext, sealed3.ciphertext) - } - - // MARK: - Security Tests - - func testHandshakeAuthentication() throws { - let aliceKey = Curve25519.KeyAgreement.PrivateKey() - let bobKey = Curve25519.KeyAgreement.PrivateKey() - let eveKey = Curve25519.KeyAgreement.PrivateKey() // Attacker - - var alice = NoiseHandshakeState(role: .initiator, pattern: .XX, localStaticKey: aliceKey) - var eve = NoiseHandshakeState(role: .responder, pattern: .XX, localStaticKey: eveKey) - - // Alice initiates handshake thinking she's talking to Bob - let msg1 = try alice.writeMessage() - _ = try eve.readMessage(msg1) - - // Eve responds with her keys - let msg2 = try eve.writeMessage() - _ = try alice.readMessage(msg2) - - // Alice completes handshake - let msg3 = try alice.writeMessage() - _ = try eve.readMessage(msg3) - - // Both complete handshake, but Alice has Eve's public key, not Bob's - let aliceRemoteKey = alice.getRemoteStaticPublicKey() - XCTAssertEqual(aliceRemoteKey?.rawRepresentation, eveKey.publicKey.rawRepresentation) - XCTAssertNotEqual(aliceRemoteKey?.rawRepresentation, bobKey.publicKey.rawRepresentation) - - // This demonstrates that authentication requires out-of-band verification - // or pre-shared knowledge of public keys - } - - func testReplayProtection() throws { - let key = SymmetricKey(size: .bits256) - let cipher1 = NoiseCipherState(key: key) - let cipher2 = NoiseCipherState(key: key) - - let plaintext = "Test".data(using: .utf8)! - - // Encrypt a message - let ciphertext = try cipher1.encrypt(plaintext: plaintext) - - // Decrypt normally works - _ = try cipher2.decrypt(ciphertext: ciphertext) - - // Replaying the same ciphertext should fail due to nonce mismatch - XCTAssertThrowsError(try cipher2.decrypt(ciphertext: ciphertext)) - } -} \ No newline at end of file diff --git a/bitchatTests/NoiseRateLimiterTests.swift b/bitchatTests/NoiseRateLimiterTests.swift deleted file mode 100644 index ac9171b4..00000000 --- a/bitchatTests/NoiseRateLimiterTests.swift +++ /dev/null @@ -1,206 +0,0 @@ -// -// NoiseRateLimiterTests.swift -// bitchatTests -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import XCTest -@testable import bitchat - -class NoiseRateLimiterTests: XCTestCase { - - // MARK: - Basic Rate Limiting Tests - - func testHandshakeRateLimiting() { - let rateLimiter = NoiseRateLimiter() - let peerID = "test-peer" - - // First few handshakes should be allowed - XCTAssertTrue(rateLimiter.allowHandshake(from: peerID)) - XCTAssertTrue(rateLimiter.allowHandshake(from: peerID)) - XCTAssertTrue(rateLimiter.allowHandshake(from: peerID)) - - // After hitting limit, should be rate limited - // Default is 3 handshakes per minute - XCTAssertFalse(rateLimiter.allowHandshake(from: peerID)) - XCTAssertFalse(rateLimiter.allowHandshake(from: peerID)) - } - - func testMessageRateLimiting() { - let rateLimiter = NoiseRateLimiter() - let peerID = "test-peer" - - // Messages have higher limit (100 per minute default) - for _ in 0..<100 { - XCTAssertTrue(rateLimiter.allowMessage(from: peerID)) - } - - // 101st message should be rate limited - XCTAssertFalse(rateLimiter.allowMessage(from: peerID)) - } - - func testPerPeerRateLimiting() { - let rateLimiter = NoiseRateLimiter() - let peer1 = "alice" - let peer2 = "bob" - - // Rate limit peer1 - XCTAssertTrue(rateLimiter.allowHandshake(from: peer1)) - XCTAssertTrue(rateLimiter.allowHandshake(from: peer1)) - XCTAssertTrue(rateLimiter.allowHandshake(from: peer1)) - XCTAssertFalse(rateLimiter.allowHandshake(from: peer1)) - - // Peer2 should still be allowed - XCTAssertTrue(rateLimiter.allowHandshake(from: peer2)) - XCTAssertTrue(rateLimiter.allowHandshake(from: peer2)) - } - - // MARK: - Time Window Tests - - func testRateLimitResetsAfterWindow() { - let rateLimiter = NoiseRateLimiter() - let peerID = "test-peer" - - // Use up the limit - for _ in 0..<3 { - XCTAssertTrue(rateLimiter.allowHandshake(from: peerID)) - } - XCTAssertFalse(rateLimiter.allowHandshake(from: peerID)) - - // Simulate time passing by clearing the window - rateLimiter.clearExpiredEntries() - - // Should be allowed again after window expires - // Note: In real implementation, this would require actual time to pass - // For testing, we might need to inject a clock or expose internal state - } - - // MARK: - Global Rate Limiting Tests - - func testGlobalHandshakeLimit() { - let rateLimiter = NoiseRateLimiter() - - // Global limit prevents too many handshakes across all peers - var allowedCount = 0 - - // Try many handshakes from different peers - for i in 0..<50 { - let peerID = "peer-\(i)" - if rateLimiter.allowHandshake(from: peerID) { - allowedCount += 1 - } - } - - // Should hit global limit before allowing all 50 - XCTAssertLessThan(allowedCount, 50) - XCTAssertGreaterThan(allowedCount, 10) // But should allow reasonable amount - } - - // MARK: - Attack Mitigation Tests - - func testRapidHandshakeAttackMitigation() { - let rateLimiter = NoiseRateLimiter() - let attackerID = "attacker" - - var blockedCount = 0 - - // Simulate rapid handshake attempts - for _ in 0..<20 { - if !rateLimiter.allowHandshake(from: attackerID) { - blockedCount += 1 - } - } - - // Most attempts should be blocked - XCTAssertGreaterThan(blockedCount, 15) - } - - func testDistributedAttackMitigation() { - let rateLimiter = NoiseRateLimiter() - - var blockedCount = 0 - - // Simulate distributed attack from many IPs - for i in 0..<100 { - let attackerID = "192.168.1.\(i)" - // Each attacker tries multiple times - for _ in 0..<5 { - if !rateLimiter.allowHandshake(from: attackerID) { - blockedCount += 1 - } - } - } - - // Global rate limiting should kick in - XCTAssertGreaterThan(blockedCount, 0) - } - - // MARK: - Memory Management Tests - - func testMemoryBoundedTracking() { - let rateLimiter = NoiseRateLimiter() - - // Add many different peers - for i in 0..<10000 { - let peerID = "peer-\(i)" - _ = rateLimiter.allowMessage(from: peerID) - } - - // Rate limiter should have bounds on memory usage - // Implementation should clean up old entries - rateLimiter.clearExpiredEntries() - - // Verify it still functions correctly - XCTAssertTrue(rateLimiter.allowMessage(from: "new-peer")) - } - - // MARK: - Configuration Tests - - func testCustomRateLimits() { - // Test with custom configuration - let config = NoiseRateLimiter.Configuration( - handshakesPerMinute: 5, - messagesPerMinute: 200, - globalHandshakesPerMinute: 30 - ) - - let rateLimiter = NoiseRateLimiter(configuration: config) - let peerID = "test-peer" - - // Should allow up to 5 handshakes - for i in 0..<5 { - XCTAssertTrue(rateLimiter.allowHandshake(from: peerID), "Handshake \(i+1) should be allowed") - } - - // 6th should be blocked - XCTAssertFalse(rateLimiter.allowHandshake(from: peerID)) - } - - // MARK: - Thread Safety Tests - - func testConcurrentAccess() { - let rateLimiter = NoiseRateLimiter() - let expectation = self.expectation(description: "Concurrent access") - expectation.expectedFulfillmentCount = 10 - - // Multiple threads accessing rate limiter - for i in 0..<10 { - DispatchQueue.global().async { - let peerID = "peer-\(i)" - for _ in 0..<100 { - _ = rateLimiter.allowMessage(from: peerID) - } - expectation.fulfill() - } - } - - waitForExpectations(timeout: 5) { error in - XCTAssertNil(error) - } - - // Verify rate limiter still works - XCTAssertTrue(rateLimiter.allowMessage(from: "final-test")) - } -} \ No newline at end of file diff --git a/bitchatTests/NoiseSecurityTests.swift b/bitchatTests/NoiseSecurityTests.swift deleted file mode 100644 index 86447447..00000000 --- a/bitchatTests/NoiseSecurityTests.swift +++ /dev/null @@ -1,507 +0,0 @@ -// -// NoiseSecurityTests.swift -// bitchatTests -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import XCTest -import CryptoKit -@testable import bitchat - -class NoiseSecurityTests: XCTestCase { - - // MARK: - Channel Password Salt Tests - - func testChannelPasswordSaltIncludesFingerprint() { - let encryption = NoiseChannelEncryption() - let password = "test-password-123" - let channel = "#secure-channel" - - // Derive key without fingerprint - let key1 = encryption.deriveChannelKey(from: password, channel: channel, creatorFingerprint: nil) - - // Derive key with fingerprint - let fingerprint = "e36f7993abc123def456789012345678901234567890abcdef1234567890abcd" - let key2 = encryption.deriveChannelKey(from: password, channel: channel, creatorFingerprint: fingerprint) - - // Keys should be different due to different salts - XCTAssertNotEqual(key1.withUnsafeBytes { Data($0) }, key2.withUnsafeBytes { Data($0) }) - } - - func testChannelPasswordDerivationPerformance() { - let encryption = NoiseChannelEncryption() - let password = "test-password-123" - let channel = "#performance-test" - let fingerprint = "e36f7993abc123def456789012345678901234567890abcdef1234567890abcd" - - // Measure time for PBKDF2 with 210,000 iterations - measure { - _ = encryption.deriveChannelKey(from: password, channel: channel, creatorFingerprint: fingerprint) - } - - // Should complete within reasonable time (< 1 second on modern hardware) - } - - func testDifferentChannelsProduceDifferentKeys() { - let encryption = NoiseChannelEncryption() - let password = "same-password" - let fingerprint = "e36f7993abc123def456789012345678901234567890abcdef1234567890abcd" - - let key1 = encryption.deriveChannelKey(from: password, channel: "#channel1", creatorFingerprint: fingerprint) - let key2 = encryption.deriveChannelKey(from: password, channel: "#channel2", creatorFingerprint: fingerprint) - - // Same password but different channels should produce different keys - XCTAssertNotEqual(key1.withUnsafeBytes { Data($0) }, key2.withUnsafeBytes { Data($0) }) - } - - // MARK: - Message Padding Tests - - func testMessagePaddingAppliedToAllPackets() throws { - // Create a small packet - let packet = BitchatPacket( - type: MessageType.message.rawValue, - senderID: Data("testuser".utf8), - recipientID: nil, - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: Data("Hello".utf8), - signature: nil, - ttl: 3 - ) - - // Encode packet - guard let encodedData = packet.toBinaryData() else { - XCTFail("Failed to encode packet") - return - } - - // Check that size matches one of the standard block sizes - let blockSizes = [256, 512, 1024, 2048] - XCTAssertTrue(blockSizes.contains(encodedData.count) || encodedData.count > 2048, - "Encoded data size \(encodedData.count) doesn't match expected block sizes") - - // Decode should work correctly - guard let decodedPacket = BitchatPacket.from(encodedData) else { - XCTFail("Failed to decode packet") - return - } - - // Verify decoded content matches original - XCTAssertEqual(decodedPacket.type, packet.type) - XCTAssertEqual(String(data: decodedPacket.payload, encoding: .utf8), - String(data: packet.payload, encoding: .utf8)) - } - - func testPaddingConsistentAcrossMessages() { - // Create multiple packets with same size payload - let packets: [BitchatPacket] = (0..<5).map { i in - BitchatPacket( - type: MessageType.message.rawValue, - senderID: Data("user\(i)".utf8), - recipientID: nil, - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: Data("Same size message content here".utf8), - signature: nil, - ttl: 3 - ) - } - - // Encode all packets - let encodedSizes = packets.compactMap { $0.toBinaryData()?.count } - - // All should have same padded size - XCTAssertEqual(encodedSizes.count, packets.count) - let firstSize = encodedSizes[0] - XCTAssertTrue(encodedSizes.allSatisfy { $0 == firstSize }, - "All packets with similar content should pad to same size") - } - - // MARK: - Public Key Validation Tests - - func testValidPublicKeyAccepted() throws { - // Generate a valid key - let validKey = Curve25519.KeyAgreement.PrivateKey() - let publicKeyData = validKey.publicKey.rawRepresentation - - // Should validate successfully - let validated = try NoiseHandshakeState.validatePublicKey(publicKeyData) - XCTAssertEqual(validated.rawRepresentation, publicKeyData) - } - - func testAllZeroKeyRejected() { - let zeroKey = Data(repeating: 0x00, count: 32) - - XCTAssertThrowsError(try NoiseHandshakeState.validatePublicKey(zeroKey)) { error in - XCTAssertEqual(error as? NoiseError, NoiseError.invalidPublicKey) - } - } - - func testAllOneKeyRejected() { - let oneKey = Data(repeating: 0xFF, count: 32) - - XCTAssertThrowsError(try NoiseHandshakeState.validatePublicKey(oneKey)) { error in - XCTAssertEqual(error as? NoiseError, NoiseError.invalidPublicKey) - } - } - - func testInvalidKeySizeRejected() { - // Too short - let shortKey = Data(repeating: 0x42, count: 16) - XCTAssertThrowsError(try NoiseHandshakeState.validatePublicKey(shortKey)) { error in - XCTAssertEqual(error as? NoiseError, NoiseError.invalidPublicKey) - } - - // Too long - let longKey = Data(repeating: 0x42, count: 64) - XCTAssertThrowsError(try NoiseHandshakeState.validatePublicKey(longKey)) { error in - XCTAssertEqual(error as? NoiseError, NoiseError.invalidPublicKey) - } - } - - func testWeakKeyRejected() { - // Known weak Curve25519 key patterns - // Low order points that would result in weak DH - let weakKeys = [ - Data([0x01] + Array(repeating: 0x00, count: 31)), // Near zero - Data(Array(repeating: 0x00, count: 31) + [0x01]), // Different pattern - ] - - for weakKey in weakKeys { - // CryptoKit should reject these during DH operation - if (try? NoiseHandshakeState.validatePublicKey(weakKey)) != nil { - // If key creation succeeds, DH should fail in validation - print("Note: Weak key pattern was not rejected by CryptoKit directly") - } - } - } - - // MARK: - Integration Tests - - func testSecureHandshakeWithValidation() throws { - // Create two parties - let aliceStatic = Curve25519.KeyAgreement.PrivateKey() - let bobStatic = Curve25519.KeyAgreement.PrivateKey() - - var alice = NoiseHandshakeState(role: .initiator, pattern: .XX, localStaticKey: aliceStatic) - var bob = NoiseHandshakeState(role: .responder, pattern: .XX, localStaticKey: bobStatic) - - // Perform handshake - validation happens automatically - let msg1 = try alice.writeMessage() - _ = try bob.readMessage(msg1) - - let msg2 = try bob.writeMessage() - _ = try alice.readMessage(msg2) - - let msg3 = try alice.writeMessage() - _ = try bob.readMessage(msg3) - - // Both should complete successfully - XCTAssertTrue(alice.isHandshakeComplete()) - XCTAssertTrue(bob.isHandshakeComplete()) - } - - func testPaddedMessageTransmission() throws { - // Create a packet and encode it - let originalMessage = "Test message for padding" - let packet = BitchatPacket( - type: MessageType.message.rawValue, - senderID: Data("sender123".utf8), - recipientID: Data("recipient".utf8), - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: Data(originalMessage.utf8), - signature: nil, - ttl: 5 - ) - - // Encode (with padding) - guard let encoded = packet.toBinaryData() else { - XCTFail("Failed to encode") - return - } - - // Verify padded size - XCTAssertTrue(encoded.count >= originalMessage.count + 21) // Header + sender + payload - - // Decode (removes padding) - guard let decoded = BitchatPacket.from(encoded) else { - XCTFail("Failed to decode") - return - } - - // Verify message integrity - XCTAssertEqual(String(data: decoded.payload, encoding: .utf8), originalMessage) - } - - // MARK: - Session Rekeying Tests - - func testSessionRekeyingTriggered() { - // Create session manager - let localKey = Curve25519.KeyAgreement.PrivateKey() - let sessionManager = NoiseSessionManager(localStaticKey: localKey) - - // Create a session - let session = sessionManager.createSession(for: "testPeer", role: .initiator) - - // Complete handshake - let remoteKey = Curve25519.KeyAgreement.PrivateKey() - var remoteHandshake = NoiseHandshakeState(role: .responder, pattern: .XX, localStaticKey: remoteKey) - - do { - let msg1 = try session.startHandshake() - _ = try remoteHandshake.readMessage(msg1) - - let msg2 = try remoteHandshake.writeMessage() - _ = try session.processHandshakeMessage(msg2) - - let msg3 = try session.writeMessage() - _ = try remoteHandshake.readMessage(msg3) - - XCTAssertTrue(session.isEstablished()) - - // Get sessions needing rekey (should be empty) - var needsRekey = sessionManager.getSessionsNeedingRekey() - XCTAssertTrue(needsRekey.isEmpty) - - // Force the session to need rekeying by manipulating its state - if let secureSession = session as? SecureNoiseSession { - // Set old activity time - let oldTime = Date().addingTimeInterval(-35 * 60) - secureSession.setLastActivityTimeForTesting(oldTime) - - // Now check again - needsRekey = sessionManager.getSessionsNeedingRekey() - XCTAssertFalse(needsRekey.isEmpty) - XCTAssertTrue(needsRekey.contains(where: { $0.peerID == "testPeer" && $0.needsRekey })) - } - - } catch { - XCTFail("Test failed: \(error)") - } - } - - func testRekeyInitiation() { - // Create session manager - let localKey = Curve25519.KeyAgreement.PrivateKey() - let sessionManager = NoiseSessionManager(localStaticKey: localKey) - - // Create and establish a session - let session = sessionManager.createSession(for: "testPeer", role: .initiator) - - // Complete handshake - let remoteKey = Curve25519.KeyAgreement.PrivateKey() - var remoteHandshake = NoiseHandshakeState(role: .responder, pattern: .XX, localStaticKey: remoteKey) - - do { - let msg1 = try session.startHandshake() - _ = try remoteHandshake.readMessage(msg1) - - let msg2 = try remoteHandshake.writeMessage() - _ = try session.processHandshakeMessage(msg2) - - let msg3 = try session.writeMessage() - _ = try remoteHandshake.readMessage(msg3) - - XCTAssertTrue(session.isEstablished()) - - // Store the old session's remote key - let oldRemoteKey = session.getRemoteStaticPublicKey() - XCTAssertNotNil(oldRemoteKey) - - // Initiate rekey - try sessionManager.initiateRekey(for: "testPeer") - - // The old session should be removed - let currentSession = sessionManager.getSession(for: "testPeer") - XCTAssertNil(currentSession) // Session removed, waiting for new handshake - - } catch { - XCTFail("Test failed: \(error)") - } - } - - // MARK: - Integration Tests - - func testFullRekeyHandshake() { - // Create encryption service - let alice = NoiseEncryptionService() - let bob = NoiseEncryptionService() - - let aliceID = "alice" - let bobID = "bob" - - do { - // Initial handshake - let msg1 = try alice.initiateHandshake(with: bobID) - let msg2 = try bob.processHandshakeMessage(from: aliceID, message: msg1)! - _ = try alice.processHandshakeMessage(from: bobID, message: msg2) - - // Verify sessions established - XCTAssertTrue(alice.hasEstablishedSession(with: bobID)) - XCTAssertTrue(bob.hasEstablishedSession(with: aliceID)) - - // Exchange some messages - let plaintext1 = "Hello Bob" - let encrypted1 = try alice.encrypt(Data(plaintext1.utf8), for: bobID) - let decrypted1 = try bob.decrypt(encrypted1, from: aliceID) - XCTAssertEqual(String(data: decrypted1, encoding: .utf8), plaintext1) - - // Force session to expire by manipulating internal state - // (In real scenario, this would happen after 30 minutes or 1M messages) - - // Trigger rekey from Alice's side - var rekeyHandshakeCompleted = false - alice.onHandshakeRequired = { peerID in - XCTAssertEqual(peerID, bobID) - rekeyHandshakeCompleted = true - } - - // After rekey, should be able to continue messaging - // Note: In real implementation, the rekey would be triggered automatically - - } catch { - XCTFail("Integration test failed: \(error)") - } - } - - func testErrorHandlingDuringHandshake() { - let service = NoiseEncryptionService() - - // Test invalid peer ID - XCTAssertThrowsError(try service.initiateHandshake(with: "")) { error in - if let securityError = error as? NoiseSecurityError { - XCTAssertEqual(securityError, NoiseSecurityError.invalidPeerID) - } - } - - // Test invalid handshake message - XCTAssertThrowsError(try service.processHandshakeMessage(from: "peer", message: Data())) { error in - // Should fail to parse empty data as handshake - } - - // Test oversized handshake message - let oversizedMessage = Data(repeating: 0x42, count: 100_000) - XCTAssertThrowsError(try service.processHandshakeMessage(from: "peer", message: oversizedMessage)) { error in - if let securityError = error as? NoiseSecurityError { - XCTAssertEqual(securityError, NoiseSecurityError.messageTooLarge) - } - } - } - - func testRateLimitingIntegration() { - let service = NoiseEncryptionService() - let peerID = "rate-limited-peer" - - var handshakeAttempts = 0 - var rateLimitHit = false - - // Try many rapid handshakes - for _ in 0..<10 { - do { - _ = try service.initiateHandshake(with: peerID) - handshakeAttempts += 1 - } catch { - if let securityError = error as? NoiseSecurityError, - securityError == NoiseSecurityError.rateLimitExceeded { - rateLimitHit = true - break - } - } - } - - // Should hit rate limit before all 10 attempts - XCTAssertTrue(rateLimitHit) - XCTAssertLessThan(handshakeAttempts, 10) - } - - func testChannelEncryptionIntegration() { - let service = NoiseEncryptionService() - let channel = "#integration-test" - let password = "test-password" - let fingerprint = service.getIdentityFingerprint() - - // Set channel password - service.setChannelPassword(password, for: channel) - - // Encrypt channel message - do { - let message = "Channel message test" - let encrypted = try service.encryptChannelMessage(message, for: channel) - - // Verify it's encrypted - XCTAssertNotEqual(encrypted, Data(message.utf8)) - - // Decrypt - let decrypted = try service.decryptChannelMessage(encrypted, for: channel) - XCTAssertEqual(decrypted, message) - - // Clean up - service.removeChannelPassword(for: channel) - - } catch { - XCTFail("Channel encryption failed: \(error)") - } - } - - func testSecureSessionConcurrency() { - let aliceKey = Curve25519.KeyAgreement.PrivateKey() - let bobKey = Curve25519.KeyAgreement.PrivateKey() - - let alice = SecureNoiseSession(peerID: "bob", role: .initiator, localStaticKey: aliceKey) - let bob = SecureNoiseSession(peerID: "alice", role: .responder, localStaticKey: bobKey) - - // Complete handshake - do { - let msg1 = try alice.startHandshake() - _ = try bob.processHandshakeMessage(msg1) - - let msg2 = try bob.writeMessage() - _ = try alice.processHandshakeMessage(msg2) - - let msg3 = try alice.writeMessage() - _ = try bob.processHandshakeMessage(msg3) - - XCTAssertTrue(alice.isEstablished()) - XCTAssertTrue(bob.isEstablished()) - - // Concurrent encryption/decryption - let expectation = self.expectation(description: "Concurrent operations") - expectation.expectedFulfillmentCount = 20 - - let queue = DispatchQueue(label: "test.concurrent", attributes: .concurrent) - - for i in 0..<10 { - // Encrypt from Alice - queue.async { - do { - let message = "Message \(i) from Alice" - let encrypted = try alice.encrypt(Data(message.utf8)) - let decrypted = try bob.decrypt(encrypted) - XCTAssertEqual(String(data: decrypted, encoding: .utf8), message) - expectation.fulfill() - } catch { - XCTFail("Concurrent encrypt failed: \(error)") - } - } - - // Encrypt from Bob - queue.async { - do { - let message = "Message \(i) from Bob" - let encrypted = try bob.encrypt(Data(message.utf8)) - let decrypted = try alice.decrypt(encrypted) - XCTAssertEqual(String(data: decrypted, encoding: .utf8), message) - expectation.fulfill() - } catch { - XCTFail("Concurrent decrypt failed: \(error)") - } - } - } - - waitForExpectations(timeout: 5) - - } catch { - XCTFail("Handshake failed: \(error)") - } - } -} \ No newline at end of file diff --git a/bitchatTests/NoiseSecurityValidatorTests.swift b/bitchatTests/NoiseSecurityValidatorTests.swift deleted file mode 100644 index f17c1490..00000000 --- a/bitchatTests/NoiseSecurityValidatorTests.swift +++ /dev/null @@ -1,191 +0,0 @@ -// -// NoiseSecurityValidatorTests.swift -// bitchatTests -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import XCTest -@testable import bitchat - -class NoiseSecurityValidatorTests: XCTestCase { - - // MARK: - Peer ID Validation Tests - - func testValidPeerIDAccepted() { - // Valid peer IDs - XCTAssertTrue(NoiseSecurityValidator.validatePeerID("user123")) - XCTAssertTrue(NoiseSecurityValidator.validatePeerID("alice")) - XCTAssertTrue(NoiseSecurityValidator.validatePeerID("bob_2024")) - XCTAssertTrue(NoiseSecurityValidator.validatePeerID("test-user")) - XCTAssertTrue(NoiseSecurityValidator.validatePeerID("192.168.1.1:8080")) // IP:port format - } - - func testInvalidPeerIDRejected() { - // Empty - XCTAssertFalse(NoiseSecurityValidator.validatePeerID("")) - - // Too long (over 255 chars) - let longID = String(repeating: "a", count: 256) - XCTAssertFalse(NoiseSecurityValidator.validatePeerID(longID)) - - // Control characters - XCTAssertFalse(NoiseSecurityValidator.validatePeerID("user\0null")) - XCTAssertFalse(NoiseSecurityValidator.validatePeerID("user\nline")) - XCTAssertFalse(NoiseSecurityValidator.validatePeerID("user\ttab")) - - // Path traversal attempts - XCTAssertFalse(NoiseSecurityValidator.validatePeerID("../../../etc/passwd")) - XCTAssertFalse(NoiseSecurityValidator.validatePeerID("user/../admin")) - } - - // MARK: - Message Size Validation Tests - - func testValidMessageSizeAccepted() { - // Small message - let smallData = Data(repeating: 0x42, count: 100) - XCTAssertTrue(NoiseSecurityValidator.validateMessageSize(smallData)) - - // Medium message (1MB) - let mediumData = Data(repeating: 0x42, count: 1024 * 1024) - XCTAssertTrue(NoiseSecurityValidator.validateMessageSize(mediumData)) - - // Just under limit (10MB - 1 byte) - let nearLimitData = Data(repeating: 0x42, count: 10 * 1024 * 1024 - 1) - XCTAssertTrue(NoiseSecurityValidator.validateMessageSize(nearLimitData)) - } - - func testOversizedMessageRejected() { - // Exactly at limit (10MB) - let limitData = Data(repeating: 0x42, count: 10 * 1024 * 1024) - XCTAssertFalse(NoiseSecurityValidator.validateMessageSize(limitData)) - - // Over limit - let overData = Data(repeating: 0x42, count: 11 * 1024 * 1024) - XCTAssertFalse(NoiseSecurityValidator.validateMessageSize(overData)) - } - - func testHandshakeMessageSizeValidation() { - // Valid handshake size - let validHandshake = Data(repeating: 0x42, count: 500) - XCTAssertTrue(NoiseSecurityValidator.validateHandshakeMessageSize(validHandshake)) - - // Too large for handshake (over 64KB) - let largeHandshake = Data(repeating: 0x42, count: 65 * 1024) - XCTAssertFalse(NoiseSecurityValidator.validateHandshakeMessageSize(largeHandshake)) - } - - // MARK: - Channel Name Validation Tests - - func testValidChannelNameAccepted() { - XCTAssertTrue(NoiseSecurityValidator.validateChannelName("#general")) - XCTAssertTrue(NoiseSecurityValidator.validateChannelName("#test-channel")) - XCTAssertTrue(NoiseSecurityValidator.validateChannelName("#channel_123")) - XCTAssertTrue(NoiseSecurityValidator.validateChannelName("#🎉party")) - XCTAssertTrue(NoiseSecurityValidator.validateChannelName("#2024")) - } - - func testInvalidChannelNameRejected() { - // Missing # prefix - XCTAssertFalse(NoiseSecurityValidator.validateChannelName("general")) - - // Empty or just # - XCTAssertFalse(NoiseSecurityValidator.validateChannelName("")) - XCTAssertFalse(NoiseSecurityValidator.validateChannelName("#")) - - // Too long (over 50 chars) - let longName = "#" + String(repeating: "a", count: 51) - XCTAssertFalse(NoiseSecurityValidator.validateChannelName(longName)) - - // Invalid characters - XCTAssertFalse(NoiseSecurityValidator.validateChannelName("#channel\nwith\nnewlines")) - XCTAssertFalse(NoiseSecurityValidator.validateChannelName("#../../etc")) - XCTAssertFalse(NoiseSecurityValidator.validateChannelName("#channel")) - XCTAssertTrue(NoiseSecurityValidator.containsSuspiciousPattern("javascript:void(0)")) - - // SQL injection patterns - XCTAssertTrue(NoiseSecurityValidator.containsSuspiciousPattern("'; DROP TABLE users; --")) - XCTAssertTrue(NoiseSecurityValidator.containsSuspiciousPattern("1' OR '1'='1")) - - // Normal text should pass - XCTAssertFalse(NoiseSecurityValidator.containsSuspiciousPattern("Hello, this is a normal message!")) - XCTAssertFalse(NoiseSecurityValidator.containsSuspiciousPattern("Meeting at 3:00 PM")) - } -} \ No newline at end of file diff --git a/bitchatTests/PasswordProtectedChannelTests.swift b/bitchatTests/PasswordProtectedChannelTests.swift deleted file mode 100644 index d8dfb003..00000000 --- a/bitchatTests/PasswordProtectedChannelTests.swift +++ /dev/null @@ -1,437 +0,0 @@ -// -// PasswordProtectedChannelTests.swift -// bitchatTests -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import XCTest -import CryptoKit -import CommonCrypto -@testable import bitchat - -class PasswordProtectedChannelTests: XCTestCase { - var viewModel: ChatViewModel! - - override func setUp() { - super.setUp() - // Clear UserDefaults to ensure test isolation - clearAllUserDefaults() - - // Create a fresh view model for each test - viewModel = ChatViewModel() - - // Ensure clean state - viewModel.passwordProtectedChannels.removeAll() - viewModel.channelCreators.removeAll() - viewModel.channelPasswords.removeAll() - viewModel.channelKeys.removeAll() - viewModel.joinedChannels.removeAll() - viewModel.channelMembers.removeAll() - viewModel.channelMessages.removeAll() - } - - private func clearAllUserDefaults() { - let defaults = UserDefaults.standard - defaults.removeObject(forKey: "bitchat_nickname") - defaults.removeObject(forKey: "bitchat_joined_channels") - defaults.removeObject(forKey: "bitchat_password_protected_channels") - defaults.removeObject(forKey: "bitchat_channel_creators") - defaults.removeObject(forKey: "bitchat_channel_passwords") - defaults.removeObject(forKey: "bitchat_favorite_peers") - defaults.synchronize() - } - - override func tearDown() { - // Clean up after tests - clearAllUserDefaults() - viewModel = nil - super.tearDown() - } - - // MARK: - Password Key Derivation Tests - - func testPasswordKeyDerivation() { - // Same password and channel should always produce same key - let password = "secretPassword123" - let channelName = "#testchannel" - - let key1 = deriveChannelKey(from: password, channelName: channelName) - let key2 = deriveChannelKey(from: password, channelName: channelName) - - // Keys should be identical - XCTAssertEqual(key1, key2, "Same password and channel should produce same key") - } - - func testDifferentPasswordsProduceDifferentKeys() { - let channelName = "#testchannel" - let password1 = "password123" - let password2 = "different456" - - let key1 = deriveChannelKey(from: password1, channelName: channelName) - let key2 = deriveChannelKey(from: password2, channelName: channelName) - - XCTAssertNotEqual(key1, key2, "Different passwords should produce different keys") - } - - func testDifferentChannelsProduceDifferentKeys() { - let password = "samePassword" - let channel1 = "#channel1" - let channel2 = "#channel2" - - let key1 = deriveChannelKey(from: password, channelName: channel1) - let key2 = deriveChannelKey(from: password, channelName: channel2) - - XCTAssertNotEqual(key1, key2, "Same password in different channels should produce different keys") - } - - // MARK: - Channel Creation and Joining Tests - - func testJoinUnprotectedChannel() { - let channelName = "#public" - - let success = viewModel.joinChannel(channelName) - - XCTAssertTrue(success, "Should be able to join unprotected channel") - XCTAssertTrue(viewModel.joinedChannels.contains(channelName)) - XCTAssertEqual(viewModel.currentChannel, channelName) - XCTAssertTrue(viewModel.channelMembers[channelName]?.contains(viewModel.meshService.myPeerID) ?? false) - } - - func testCreatePasswordProtectedChannel() { - let channelName = "#private" - let password = "secret123" - - // Join channel first - let joinSuccess = viewModel.joinChannel(channelName) - XCTAssertTrue(joinSuccess) - - // Set password - viewModel.setChannelPassword(password, for: channelName) - - XCTAssertTrue(viewModel.passwordProtectedChannels.contains(channelName)) - XCTAssertNotNil(viewModel.channelKeys[channelName]) - XCTAssertEqual(viewModel.channelPasswords[channelName], password) - XCTAssertEqual(viewModel.channelCreators[channelName], viewModel.meshService.myPeerID) - } - - func testJoinPasswordProtectedEmptyChannel() { - let channelName = "#protected" - let password = "test123" - - // Simulate channel being marked as password protected - viewModel.passwordProtectedChannels.insert(channelName) - - // Try to join with password - should be accepted tentatively for empty channel - let success = viewModel.joinChannel(channelName, password: password) - - XCTAssertTrue(success, "Should accept tentative access to empty password-protected channel") - XCTAssertNotNil(viewModel.channelKeys[channelName], "Should store key tentatively") - XCTAssertEqual(viewModel.channelPasswords[channelName], password, "Should store password tentatively") - - // Should have a system message explaining tentative access - let hasSystemMessage = viewModel.messages.contains { $0.sender == "system" && $0.content.contains("waiting for encrypted messages to verify password") } - XCTAssertTrue(hasSystemMessage, "Should add system message explaining tentative access") - } - - func testJoinPasswordProtectedChannelWithMessages() { - let channelName = "#secure" - let correctPassword = "correct123" - let wrongPassword = "wrong456" - let testMessage = "Test encrypted message" - - // First, create the channel and set password as creator - let _ = viewModel.joinChannel(channelName) - viewModel.setChannelPassword(correctPassword, for: channelName) - - // Simulate an encrypted message in the channel - let key = viewModel.channelKeys[channelName]! - guard let messageData = testMessage.data(using: .utf8) else { - XCTFail("Failed to convert message to data") - return - } - - do { - let sealedBox = try AES.GCM.seal(messageData, using: key) - let encryptedData = sealedBox.combined! - - let encryptedMsg = BitchatMessage( - sender: "alice", - content: "[Encrypted message - password required]", - timestamp: Date(), - isRelay: false, - originalSender: nil, - isPrivate: false, - recipientNickname: nil, - senderPeerID: "alice123", - mentions: nil, - channel: channelName, - encryptedContent: encryptedData, - isEncrypted: true - ) - - // Add to channel messages - viewModel.channelMessages[channelName] = [encryptedMsg] - - // Clear keys to simulate another user - viewModel.channelKeys.removeValue(forKey: channelName) - viewModel.channelPasswords.removeValue(forKey: channelName) - - // Try to join with wrong password - let wrongSuccess = viewModel.joinChannel(channelName, password: wrongPassword) - XCTAssertFalse(wrongSuccess, "Should reject wrong password") - - // Try to join with correct password - let correctSuccess = viewModel.joinChannel(channelName, password: correctPassword) - XCTAssertTrue(correctSuccess, "Should accept correct password") - XCTAssertNotNil(viewModel.channelKeys[channelName], "Should store key for correct password") - - } catch { - XCTFail("Encryption failed: \(error)") - } - } - - // MARK: - Password Verification Tests - - func testEncryptDecryptChannelMessage() { - let channelName = "#crypto" - let password = "cryptoKey" - let testMessage = "This is a secret message" - - // Derive key - let key = deriveChannelKey(from: password, channelName: channelName) - - // Encrypt - guard let messageData = testMessage.data(using: .utf8) else { - XCTFail("Failed to convert message to data") - return - } - - do { - let sealedBox = try AES.GCM.seal(messageData, using: key) - let encryptedData = sealedBox.combined! - - // Store key and decrypt - viewModel.channelKeys[channelName] = key - let decrypted = viewModel.decryptChannelMessage(encryptedData, channel: channelName) - - XCTAssertEqual(decrypted, testMessage, "Decrypted message should match original") - } catch { - XCTFail("Encryption failed: \(error)") - } - } - - func testWrongPasswordFailsDecryption() { - let channelName = "#secure" - let correctPassword = "correct" - let wrongPassword = "wrong" - let testMessage = "Secret content" - - // Encrypt with correct password - let correctKey = deriveChannelKey(from: correctPassword, channelName: channelName) - - guard let messageData = testMessage.data(using: .utf8) else { - XCTFail("Failed to convert message to data") - return - } - - do { - let sealedBox = try AES.GCM.seal(messageData, using: correctKey) - let encryptedData = sealedBox.combined! - - // Try to decrypt with wrong password - let wrongKey = deriveChannelKey(from: wrongPassword, channelName: channelName) - let decrypted = viewModel.decryptChannelMessage(encryptedData, channel: channelName, testKey: wrongKey) - - XCTAssertNil(decrypted, "Wrong password should fail to decrypt") - } catch { - XCTFail("Encryption failed: \(error)") - } - } - - // MARK: - Channel Creator Tests - - func testOnlyCreatorCanSetPassword() { - let channelName = "#owned" - let password = "ownerOnly" - - // Join channel (becomes creator) - let _ = viewModel.joinChannel(channelName) - - // Set password as creator - viewModel.setChannelPassword(password, for: channelName) - XCTAssertTrue(viewModel.passwordProtectedChannels.contains(channelName)) - - // Simulate another user trying to set password - viewModel.channelCreators[channelName] = "otherUser123" - viewModel.setChannelPassword("hackerPassword", for: channelName) - - // Password should not change - XCTAssertEqual(viewModel.channelPasswords[channelName], password, "Non-creator should not be able to change password") - } - - func testCreatorCanRemovePassword() { - let channelName = "#changeable" - let password = "temporary" - - // Create protected channel - let _ = viewModel.joinChannel(channelName) - viewModel.setChannelPassword(password, for: channelName) - - XCTAssertTrue(viewModel.passwordProtectedChannels.contains(channelName)) - - // Remove password - viewModel.removeChannelPassword(for: channelName) - - XCTAssertFalse(viewModel.passwordProtectedChannels.contains(channelName)) - XCTAssertNil(viewModel.channelKeys[channelName]) - XCTAssertNil(viewModel.channelPasswords[channelName]) - } - - // MARK: - Message Handling Tests - - func testReceiveEncryptedMessageWithoutKey() { - let channelName = "#encrypted" - - // Join channel without password - let _ = viewModel.joinChannel(channelName) - - // Simulate receiving encrypted message - let encryptedMessage = BitchatMessage( - sender: "alice", - content: "[Encrypted message - password required]", - timestamp: Date(), - isRelay: false, - originalSender: nil, - isPrivate: false, - recipientNickname: nil, - senderPeerID: "alice123", - mentions: nil, - channel: channelName, - encryptedContent: Data([1, 2, 3, 4]), // dummy encrypted data - isEncrypted: true - ) - - viewModel.didReceiveMessage(encryptedMessage) - - // Should mark channel as password protected - XCTAssertTrue(viewModel.passwordProtectedChannels.contains(channelName)) - - // Should add system message - let channelMessages = viewModel.channelMessages[channelName] ?? [] - let hasSystemMessage = channelMessages.contains { $0.sender == "system" && $0.content.contains("password protected") } - XCTAssertTrue(hasSystemMessage, "Should add system message about password protection") - } - - // MARK: - Command Tests - - func testJoinCommand() { - let input = "/join #testchannel" - viewModel.sendMessage(input) - - XCTAssertTrue(viewModel.joinedChannels.contains("#testchannel")) - XCTAssertEqual(viewModel.currentChannel, "#testchannel") - } - - func testJoinCommandAlias() { - let input = "/j #quick" - viewModel.sendMessage(input) - - XCTAssertTrue(viewModel.joinedChannels.contains("#quick")) - XCTAssertEqual(viewModel.currentChannel, "#quick") - } - - func testInvalidChannelName() { - let input = "/j #invalid-channel!" - viewModel.sendMessage(input) - - XCTAssertFalse(viewModel.joinedChannels.contains("#invalid-channel!")) - - // Should have system message about invalid name - let hasErrorMessage = viewModel.messages.contains { $0.sender == "system" && $0.content.contains("invalid channel name") } - XCTAssertTrue(hasErrorMessage) - } - - // MARK: - Key Commitment Tests - - func testKeyCommitmentVerification() { - let channelName = "#commitment" - let password = "testpass123" - - // Join and set password - let _ = viewModel.joinChannel(channelName) - viewModel.setChannelPassword(password, for: channelName) - - // Verify key commitment was stored - XCTAssertNotNil(viewModel.channelKeyCommitments[channelName], "Should store key commitment") - - // Simulate another user with the stored commitment - let commitment = viewModel.channelKeyCommitments[channelName]! - viewModel.channelKeys.removeValue(forKey: channelName) - viewModel.channelPasswords.removeValue(forKey: channelName) - - // Manually set the commitment as if received from network - viewModel.channelKeyCommitments[channelName] = commitment - - // Try with wrong password - should fail immediately - let wrongSuccess = viewModel.joinChannel(channelName, password: "wrongpass") - XCTAssertFalse(wrongSuccess, "Should reject wrong password via commitment check") - - // Try with correct password - should succeed - let correctSuccess = viewModel.joinChannel(channelName, password: password) - XCTAssertTrue(correctSuccess, "Should accept correct password via commitment check") - } - - func testOwnershipTransfer() { - let channelName = "#transfertest" - let password = "ownerpass" - - // Create channel and set password - let _ = viewModel.joinChannel(channelName) - viewModel.setChannelPassword(password, for: channelName) - - // Verify creator is set - XCTAssertEqual(viewModel.channelCreators[channelName], viewModel.meshService.myPeerID) - - // Simulate transfer (in real app would use /transfer command) - let newOwnerID = "newowner123" - viewModel.channelCreators[channelName] = newOwnerID - - // Verify ownership changed - XCTAssertEqual(viewModel.channelCreators[channelName], newOwnerID) - XCTAssertNotEqual(viewModel.channelCreators[channelName], viewModel.meshService.myPeerID) - } -} - -// MARK: - Helper Extensions for Testing - -extension PasswordProtectedChannelTests { - // Helper method to derive channel key for testing - // This duplicates the logic from ChatViewModel for testing purposes - func deriveChannelKey(from password: String, channelName: String) -> SymmetricKey { - let salt = channelName.data(using: .utf8)! - let iterations = 100000 - let keyLength = 32 - - var derivedKey = Data(count: keyLength) - let passwordData = password.data(using: .utf8)! - - _ = derivedKey.withUnsafeMutableBytes { derivedKeyBytes in - salt.withUnsafeBytes { saltBytes in - passwordData.withUnsafeBytes { passwordBytes in - CCKeyDerivationPBKDF( - CCPBKDFAlgorithm(kCCPBKDF2), - passwordBytes.baseAddress, passwordData.count, - saltBytes.baseAddress, salt.count, - CCPseudoRandomAlgorithm(kCCPRFHmacAlgSHA256), - UInt32(iterations), - derivedKeyBytes.baseAddress, keyLength - ) - } - } - } - - return SymmetricKey(data: derivedKey) - } -} \ No newline at end of file diff --git a/bitchatTests/ProtocolVersionNegotiationTests.swift b/bitchatTests/ProtocolVersionNegotiationTests.swift deleted file mode 100644 index 6ff64c89..00000000 --- a/bitchatTests/ProtocolVersionNegotiationTests.swift +++ /dev/null @@ -1,357 +0,0 @@ -// -// ProtocolVersionNegotiationTests.swift -// bitchatTests -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import XCTest -@testable import bitchat - -class ProtocolVersionNegotiationTests: XCTestCase { - - // MARK: - VersionHello Tests - - func testVersionHelloEncodingDecoding() { - let hello = VersionHello( - supportedVersions: [1, 2, 3], - preferredVersion: 3, - clientVersion: "1.2.3", - platform: "iOS", - capabilities: ["noise", "compression"] - ) - - // Encode - guard let encoded = hello.encode() else { - XCTFail("Failed to encode VersionHello") - return - } - - // Decode - guard let decoded = VersionHello.decode(from: encoded) else { - XCTFail("Failed to decode VersionHello") - return - } - - // Verify - XCTAssertEqual(decoded.supportedVersions, hello.supportedVersions) - XCTAssertEqual(decoded.preferredVersion, hello.preferredVersion) - XCTAssertEqual(decoded.clientVersion, hello.clientVersion) - XCTAssertEqual(decoded.platform, hello.platform) - XCTAssertEqual(decoded.capabilities, hello.capabilities) - } - - func testVersionHelloDefaults() { - let hello = VersionHello( - clientVersion: "1.0.0", - platform: "macOS" - ) - - XCTAssertEqual(hello.supportedVersions, Array(ProtocolVersion.supportedVersions)) - XCTAssertEqual(hello.preferredVersion, ProtocolVersion.current) - XCTAssertNil(hello.capabilities) - } - - // MARK: - VersionAck Tests - - func testVersionAckEncodingDecoding() { - let ack = VersionAck( - agreedVersion: 2, - serverVersion: "1.1.0", - platform: "iOS", - capabilities: ["noise"], - rejected: false, - reason: nil - ) - - // Encode - guard let encoded = ack.encode() else { - XCTFail("Failed to encode VersionAck") - return - } - - // Decode - guard let decoded = VersionAck.decode(from: encoded) else { - XCTFail("Failed to decode VersionAck") - return - } - - // Verify - XCTAssertEqual(decoded.agreedVersion, ack.agreedVersion) - XCTAssertEqual(decoded.serverVersion, ack.serverVersion) - XCTAssertEqual(decoded.platform, ack.platform) - XCTAssertEqual(decoded.capabilities, ack.capabilities) - XCTAssertEqual(decoded.rejected, ack.rejected) - XCTAssertNil(decoded.reason) - } - - func testVersionAckRejection() { - let ack = VersionAck( - agreedVersion: 0, - serverVersion: "2.0.0", - platform: "macOS", - rejected: true, - reason: "No compatible version found" - ) - - guard let encoded = ack.encode(), - let decoded = VersionAck.decode(from: encoded) else { - XCTFail("Failed to encode/decode rejection VersionAck") - return - } - - XCTAssertTrue(decoded.rejected) - XCTAssertEqual(decoded.reason, "No compatible version found") - XCTAssertEqual(decoded.agreedVersion, 0) - } - - // MARK: - ProtocolVersion Tests - - func testIsSupported() { - XCTAssertTrue(ProtocolVersion.isSupported(1)) - XCTAssertFalse(ProtocolVersion.isSupported(99)) - XCTAssertFalse(ProtocolVersion.isSupported(0)) - } - - func testVersionNegotiation() { - // Test successful negotiation - let clientVersions: [UInt8] = [1, 2, 3] - let serverVersions: [UInt8] = [1, 3, 4] - - let agreed = ProtocolVersion.negotiateVersion( - clientVersions: clientVersions, - serverVersions: serverVersions - ) - - XCTAssertEqual(agreed, 3) // Should pick highest common version - } - - func testVersionNegotiationNoCommon() { - // Test no common version - let clientVersions: [UInt8] = [2, 3] - let serverVersions: [UInt8] = [4, 5] - - let agreed = ProtocolVersion.negotiateVersion( - clientVersions: clientVersions, - serverVersions: serverVersions - ) - - XCTAssertNil(agreed) - } - - func testVersionNegotiationSingleCommon() { - // Test single common version - let clientVersions: [UInt8] = [1] - let serverVersions: [UInt8] = [1, 2, 3] - - let agreed = ProtocolVersion.negotiateVersion( - clientVersions: clientVersions, - serverVersions: serverVersions - ) - - XCTAssertEqual(agreed, 1) - } - - func testVersionNegotiationEmpty() { - // Test empty version lists - let agreed1 = ProtocolVersion.negotiateVersion( - clientVersions: [], - serverVersions: [1, 2] - ) - XCTAssertNil(agreed1) - - let agreed2 = ProtocolVersion.negotiateVersion( - clientVersions: [1, 2], - serverVersions: [] - ) - XCTAssertNil(agreed2) - } - - // MARK: - Binary Protocol Integration Tests - - func testVersionHelloPacketEncoding() { - let hello = VersionHello( - clientVersion: "1.0.0", - platform: "iOS" - ) - - guard let helloData = hello.encode() else { - XCTFail("Failed to encode VersionHello") - return - } - - let packet = BitchatPacket( - type: MessageType.versionHello.rawValue, - ttl: 1, - senderID: "testpeer", - payload: helloData - ) - - guard let encoded = packet.toBinaryData() else { - XCTFail("Failed to encode packet") - return - } - - guard let decoded = BitchatPacket.from(encoded) else { - XCTFail("Failed to decode packet") - return - } - - XCTAssertEqual(decoded.type, MessageType.versionHello.rawValue) - XCTAssertEqual(decoded.ttl, 1) - - // Verify payload can be decoded back to VersionHello - guard let decodedHello = VersionHello.decode(from: decoded.payload) else { - XCTFail("Failed to decode VersionHello from packet payload") - return - } - - XCTAssertEqual(decodedHello.clientVersion, "1.0.0") - XCTAssertEqual(decodedHello.platform, "iOS") - } - - func testVersionAckPacketEncoding() { - let ack = VersionAck( - agreedVersion: 1, - serverVersion: "1.0.0", - platform: "macOS" - ) - - guard let ackData = ack.encode() else { - XCTFail("Failed to encode VersionAck") - return - } - - let packet = BitchatPacket( - type: MessageType.versionAck.rawValue, - senderID: Data("sender".utf8), - recipientID: Data("recipient".utf8), - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: ackData, - signature: nil, - ttl: 1 - ) - - guard let encoded = packet.toBinaryData() else { - XCTFail("Failed to encode packet") - return - } - - guard let decoded = BitchatPacket.from(encoded) else { - XCTFail("Failed to decode packet") - return - } - - XCTAssertEqual(decoded.type, MessageType.versionAck.rawValue) - - // Verify payload can be decoded back to VersionAck - guard let decodedAck = VersionAck.decode(from: decoded.payload) else { - XCTFail("Failed to decode VersionAck from packet payload") - return - } - - XCTAssertEqual(decodedAck.agreedVersion, 1) - XCTAssertEqual(decodedAck.serverVersion, "1.0.0") - XCTAssertEqual(decodedAck.platform, "macOS") - } - - // MARK: - Version State Management Tests - - func testVersionNegotiationStateTransitions() { - var state = VersionNegotiationState.none - - // Test transition to helloSent - state = .helloSent - if case .helloSent = state { - // Success - } else { - XCTFail("State should be helloSent") - } - - // Test transition to ackReceived - state = .ackReceived(version: 2) - if case .ackReceived(let version) = state { - XCTAssertEqual(version, 2) - } else { - XCTFail("State should be ackReceived") - } - - // Test transition to failed - state = .failed(reason: "Version mismatch") - if case .failed(let reason) = state { - XCTAssertEqual(reason, "Version mismatch") - } else { - XCTFail("State should be failed") - } - } - - // MARK: - Edge Cases - - func testLargeVersionNumbers() { - let hello = VersionHello( - supportedVersions: [1, 127, 255], - preferredVersion: 255, - clientVersion: "99.99.99", - platform: "iOS" - ) - - guard let encoded = hello.encode(), - let decoded = VersionHello.decode(from: encoded) else { - XCTFail("Failed to encode/decode with large version numbers") - return - } - - XCTAssertEqual(decoded.supportedVersions, [1, 127, 255]) - XCTAssertEqual(decoded.preferredVersion, 255) - } - - func testEmptyCapabilities() { - let hello = VersionHello( - clientVersion: "1.0.0", - platform: "iOS", - capabilities: [] - ) - - guard let encoded = hello.encode(), - let decoded = VersionHello.decode(from: encoded) else { - XCTFail("Failed to encode/decode with empty capabilities") - return - } - - XCTAssertEqual(decoded.capabilities, []) - } - - func testLongCapabilityStrings() { - let longCapability = String(repeating: "a", count: 1000) - let hello = VersionHello( - clientVersion: "1.0.0", - platform: "iOS", - capabilities: [longCapability, "normal"] - ) - - guard let encoded = hello.encode(), - let decoded = VersionHello.decode(from: encoded) else { - XCTFail("Failed to encode/decode with long capability strings") - return - } - - XCTAssertEqual(decoded.capabilities?.count, 2) - XCTAssertEqual(decoded.capabilities?[0], longCapability) - XCTAssertEqual(decoded.capabilities?[1], "normal") - } - - func testInvalidJSON() { - let invalidData = Data("not json".utf8) - - XCTAssertNil(VersionHello.decode(from: invalidData)) - XCTAssertNil(VersionAck.decode(from: invalidData)) - } - - func testEmptyData() { - let emptyData = Data() - - XCTAssertNil(VersionHello.decode(from: emptyData)) - XCTAssertNil(VersionAck.decode(from: emptyData)) - } -} \ No newline at end of file diff --git a/bitchatTests/SecureNoiseSessionTests.swift b/bitchatTests/SecureNoiseSessionTests.swift deleted file mode 100644 index 630ac342..00000000 --- a/bitchatTests/SecureNoiseSessionTests.swift +++ /dev/null @@ -1,287 +0,0 @@ -// -// SecureNoiseSessionTests.swift -// bitchatTests -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import XCTest -import CryptoKit -@testable import bitchat - -class SecureNoiseSessionTests: XCTestCase { - - // MARK: - Session Timeout Tests - - func testSessionTimesOutAfter30Minutes() { - let aliceKey = Curve25519.KeyAgreement.PrivateKey() - let session = SecureNoiseSession(peerID: "bob", role: .initiator, localStaticKey: aliceKey) - - // Complete handshake - let bobKey = Curve25519.KeyAgreement.PrivateKey() - var bob = NoiseHandshakeState(role: .responder, pattern: .XX, localStaticKey: bobKey) - - // Perform handshake - do { - let msg1 = try session.startHandshake() - _ = try bob.readMessage(msg1) - - let msg2 = try bob.writeMessage() - _ = try session.processHandshakeMessage(msg2) - - let msg3 = try session.writeMessage() - _ = try bob.readMessage(msg3) - - XCTAssertTrue(session.isEstablished()) - - // Check initial state - XCTAssertFalse(session.needsRenegotiation()) - - // Fast-forward time by setting lastActivity to 31 minutes ago - let thirtyOneMinutesAgo = Date().addingTimeInterval(-31 * 60) - session.setLastActivityTimeForTesting(thirtyOneMinutesAgo) - - // Should now need renegotiation - XCTAssertTrue(session.needsRenegotiation()) - - } catch { - XCTFail("Handshake failed: \(error)") - } - } - - func testSessionRemainsValidUnder30Minutes() { - let aliceKey = Curve25519.KeyAgreement.PrivateKey() - let session = SecureNoiseSession(peerID: "bob", role: .initiator, localStaticKey: aliceKey) - - // Complete handshake - let bobKey = Curve25519.KeyAgreement.PrivateKey() - var bob = NoiseHandshakeState(role: .responder, pattern: .XX, localStaticKey: bobKey) - - do { - let msg1 = try session.startHandshake() - _ = try bob.readMessage(msg1) - - let msg2 = try bob.writeMessage() - _ = try session.processHandshakeMessage(msg2) - - let msg3 = try session.writeMessage() - _ = try bob.readMessage(msg3) - - XCTAssertTrue(session.isEstablished()) - - // Set lastActivity to 29 minutes ago - let twentyNineMinutesAgo = Date().addingTimeInterval(-29 * 60) - session.setLastActivityTimeForTesting(twentyNineMinutesAgo) - - // Should NOT need renegotiation - XCTAssertFalse(session.needsRenegotiation()) - - } catch { - XCTFail("Handshake failed: \(error)") - } - } - - // MARK: - Message Count Limit Tests - - func testSessionNeedsRekeyAfterMessageLimit() { - let aliceKey = Curve25519.KeyAgreement.PrivateKey() - let bobKey = Curve25519.KeyAgreement.PrivateKey() - - let alice = SecureNoiseSession(peerID: "bob", role: .initiator, localStaticKey: aliceKey) - let bob = SecureNoiseSession(peerID: "alice", role: .responder, localStaticKey: bobKey) - - // Complete handshake - do { - let msg1 = try alice.startHandshake() - _ = try bob.processHandshakeMessage(msg1) - - let msg2 = try bob.writeMessage() - _ = try alice.processHandshakeMessage(msg2) - - let msg3 = try alice.writeMessage() - _ = try bob.processHandshakeMessage(msg3) - - XCTAssertTrue(alice.isEstablished()) - XCTAssertTrue(bob.isEstablished()) - - // Check initial state - XCTAssertFalse(alice.needsRenegotiation()) - - // Set message count to just under 90% threshold (900,000) - alice.setMessageCountForTesting(899_999) - XCTAssertFalse(alice.needsRenegotiation()) - - // Set message count to 90% threshold - alice.setMessageCountForTesting(900_000) - XCTAssertTrue(alice.needsRenegotiation()) - - } catch { - XCTFail("Handshake failed: \(error)") - } - } - - // MARK: - Activity Tracking Tests - - func testActivityUpdatesOnEncryption() { - let aliceKey = Curve25519.KeyAgreement.PrivateKey() - let bobKey = Curve25519.KeyAgreement.PrivateKey() - - let alice = SecureNoiseSession(peerID: "bob", role: .initiator, localStaticKey: aliceKey) - let bob = SecureNoiseSession(peerID: "alice", role: .responder, localStaticKey: bobKey) - - // Complete handshake - do { - let msg1 = try alice.startHandshake() - _ = try bob.processHandshakeMessage(msg1) - - let msg2 = try bob.writeMessage() - _ = try alice.processHandshakeMessage(msg2) - - let msg3 = try alice.writeMessage() - _ = try bob.processHandshakeMessage(msg3) - - // Set lastActivity to 5 minutes ago - let fiveMinutesAgo = Date().addingTimeInterval(-5 * 60) - alice.setLastActivityTimeForTesting(fiveMinutesAgo) - - // Encrypt a message - let plaintext = Data("Hello Bob".utf8) - _ = try alice.encrypt(plaintext) - - // Activity should be updated to now - let timeSinceUpdate = Date().timeIntervalSince(alice.lastActivityTime) - XCTAssertLessThan(timeSinceUpdate, 1.0) // Should be within 1 second - - } catch { - XCTFail("Test failed: \(error)") - } - } - - func testActivityUpdatesOnDecryption() { - let aliceKey = Curve25519.KeyAgreement.PrivateKey() - let bobKey = Curve25519.KeyAgreement.PrivateKey() - - let alice = SecureNoiseSession(peerID: "bob", role: .initiator, localStaticKey: aliceKey) - let bob = SecureNoiseSession(peerID: "alice", role: .responder, localStaticKey: bobKey) - - // Complete handshake - do { - let msg1 = try alice.startHandshake() - _ = try bob.processHandshakeMessage(msg1) - - let msg2 = try bob.writeMessage() - _ = try alice.processHandshakeMessage(msg2) - - let msg3 = try alice.writeMessage() - _ = try bob.processHandshakeMessage(msg3) - - // Encrypt a message from Alice - let plaintext = Data("Hello Bob".utf8) - let ciphertext = try alice.encrypt(plaintext) - - // Set Bob's lastActivity to 5 minutes ago - let fiveMinutesAgo = Date().addingTimeInterval(-5 * 60) - bob.setLastActivityTimeForTesting(fiveMinutesAgo) - - // Decrypt the message - _ = try bob.decrypt(ciphertext) - - // Activity should be updated to now - let timeSinceUpdate = Date().timeIntervalSince(bob.lastActivityTime) - XCTAssertLessThan(timeSinceUpdate, 1.0) // Should be within 1 second - - } catch { - XCTFail("Test failed: \(error)") - } - } - - // MARK: - Message Count Tracking Tests - - func testMessageCountIncrements() { - let aliceKey = Curve25519.KeyAgreement.PrivateKey() - let bobKey = Curve25519.KeyAgreement.PrivateKey() - - let alice = SecureNoiseSession(peerID: "bob", role: .initiator, localStaticKey: aliceKey) - let bob = SecureNoiseSession(peerID: "alice", role: .responder, localStaticKey: bobKey) - - // Complete handshake - do { - let msg1 = try alice.startHandshake() - _ = try bob.processHandshakeMessage(msg1) - - let msg2 = try bob.writeMessage() - _ = try alice.processHandshakeMessage(msg2) - - let msg3 = try alice.writeMessage() - _ = try bob.processHandshakeMessage(msg3) - - // Check initial message count - XCTAssertEqual(alice.messageCount, 0) - - // Send multiple messages - for i in 1...5 { - let plaintext = Data("Message \(i)".utf8) - let ciphertext = try alice.encrypt(plaintext) - _ = try bob.decrypt(ciphertext) - } - - // Check message count incremented - XCTAssertEqual(alice.messageCount, 5) // Alice sent 5 messages - XCTAssertEqual(bob.messageCount, 0) // Bob received but didn't send - - } catch { - XCTFail("Test failed: \(error)") - } - } - - // MARK: - Integration Tests - - func testFullSessionLifecycle() { - let aliceKey = Curve25519.KeyAgreement.PrivateKey() - let bobKey = Curve25519.KeyAgreement.PrivateKey() - - let alice = SecureNoiseSession(peerID: "bob", role: .initiator, localStaticKey: aliceKey) - let bob = SecureNoiseSession(peerID: "alice", role: .responder, localStaticKey: bobKey) - - do { - // 1. Perform handshake - let msg1 = try alice.startHandshake() - _ = try bob.processHandshakeMessage(msg1) - - let msg2 = try bob.writeMessage() - _ = try alice.processHandshakeMessage(msg2) - - let msg3 = try alice.writeMessage() - _ = try bob.processHandshakeMessage(msg3) - - XCTAssertTrue(alice.isEstablished()) - XCTAssertTrue(bob.isEstablished()) - - // 2. Exchange messages - let message1 = "Hello from Alice" - let ciphertext1 = try alice.encrypt(Data(message1.utf8)) - let decrypted1 = try bob.decrypt(ciphertext1) - XCTAssertEqual(String(data: decrypted1, encoding: .utf8), message1) - - let message2 = "Hello from Bob" - let ciphertext2 = try bob.encrypt(Data(message2.utf8)) - let decrypted2 = try alice.decrypt(ciphertext2) - XCTAssertEqual(String(data: decrypted2, encoding: .utf8), message2) - - // 3. Check session health - XCTAssertFalse(alice.needsRenegotiation()) - XCTAssertFalse(bob.needsRenegotiation()) - - // 4. Simulate time passing - let oldTime = Date().addingTimeInterval(-35 * 60) - alice.setLastActivityTimeForTesting(oldTime) - - // 5. Check renegotiation needed - XCTAssertTrue(alice.needsRenegotiation()) - - } catch { - XCTFail("Test failed: \(error)") - } - } -} \ No newline at end of file diff --git a/bitchatTests/VersionNegotiationIntegrationTests.swift b/bitchatTests/VersionNegotiationIntegrationTests.swift deleted file mode 100644 index cd671cf9..00000000 --- a/bitchatTests/VersionNegotiationIntegrationTests.swift +++ /dev/null @@ -1,323 +0,0 @@ -// -// VersionNegotiationIntegrationTests.swift -// bitchatTests -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import XCTest -import CoreBluetooth -@testable import bitchat - -class VersionNegotiationIntegrationTests: XCTestCase { - - var meshService: BluetoothMeshService! - var mockDelegate: MockBitchatDelegate! - - override func setUp() { - super.setUp() - meshService = BluetoothMeshService() - mockDelegate = MockBitchatDelegate() - meshService.delegate = mockDelegate - } - - override func tearDown() { - meshService = nil - mockDelegate = nil - super.tearDown() - } - - // MARK: - Version Negotiation Flow Tests - - func testVersionNegotiationSuccessFlow() { - let peerID = "testpeer12345678" - - // Simulate receiving version hello - let hello = VersionHello( - supportedVersions: [1], - preferredVersion: 1, - clientVersion: "1.0.0", - platform: "iOS" - ) - - guard let helloData = hello.encode() else { - XCTFail("Failed to encode hello") - return - } - - let helloPacket = BitchatPacket( - type: MessageType.versionHello.rawValue, - senderID: Data(hexString: peerID) ?? Data(), - recipientID: nil, - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: helloData, - signature: nil, - ttl: 1 - ) - - // Process the hello packet - meshService.handleReceivedPacket(helloPacket, from: peerID, peripheral: nil) - - // Verify that version was negotiated - // Note: We'd need to expose negotiatedVersions or add a getter to properly test this - // For now, we're testing that the packet is processed without errors - - // The service should have sent a version ack - // In a real test, we'd mock the broadcast mechanism to verify this - } - - func testVersionNegotiationRejectionFlow() { - let peerID = "incompatiblepeer" - - // Simulate receiving version hello with incompatible version - let hello = VersionHello( - supportedVersions: [99, 100], // Unsupported versions - preferredVersion: 100, - clientVersion: "99.0.0", - platform: "Unknown" - ) - - guard let helloData = hello.encode() else { - XCTFail("Failed to encode hello") - return - } - - let helloPacket = BitchatPacket( - type: MessageType.versionHello.rawValue, - senderID: Data(hexString: peerID) ?? Data(), - recipientID: nil, - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: helloData, - signature: nil, - ttl: 1 - ) - - // Process the hello packet - meshService.handleReceivedPacket(helloPacket, from: peerID, peripheral: nil) - - // The service should send a rejection ack - // In a real implementation, we'd verify the rejection was sent - } - - func testBackwardCompatibilityWithLegacyPeer() { - let peerID = "legacypeer123456" - - // Simulate receiving a Noise handshake init without prior version negotiation - let handshakePacket = BitchatPacket( - type: MessageType.noiseHandshakeInit.rawValue, - senderID: Data(hexString: peerID) ?? Data(), - recipientID: nil, - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: Data("handshake_data".utf8), - signature: nil, - ttl: 3 - ) - - // Process the handshake packet - meshService.handleReceivedPacket(handshakePacket, from: peerID, peripheral: nil) - - // Should assume version 1 for backward compatibility - // The handshake should proceed normally - } - - func testVersionAckHandling() { - let peerID = "ackpeer12345678" - - // Simulate receiving version ack - let ack = VersionAck( - agreedVersion: 1, - serverVersion: "1.0.0", - platform: "macOS" - ) - - guard let ackData = ack.encode() else { - XCTFail("Failed to encode ack") - return - } - - let ackPacket = BitchatPacket( - type: MessageType.versionAck.rawValue, - senderID: Data(hexString: peerID) ?? Data(), - recipientID: meshService.getMyPeerID().data(using: .utf8), - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: ackData, - signature: nil, - ttl: 1 - ) - - // Process the ack packet - meshService.handleReceivedPacket(ackPacket, from: peerID, peripheral: nil) - - // Should update negotiated version and proceed with handshake - } - - func testVersionAckRejectionHandling() { - let peerID = "rejectpeer123456" - - // Simulate receiving rejection ack - let ack = VersionAck( - agreedVersion: 0, - serverVersion: "2.0.0", - platform: "iOS", - rejected: true, - reason: "No compatible protocol version" - ) - - guard let ackData = ack.encode() else { - XCTFail("Failed to encode rejection ack") - return - } - - let ackPacket = BitchatPacket( - type: MessageType.versionAck.rawValue, - senderID: Data(hexString: peerID) ?? Data(), - recipientID: meshService.getMyPeerID().data(using: .utf8), - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: ackData, - signature: nil, - ttl: 1 - ) - - // Process the rejection ack - meshService.handleReceivedPacket(ackPacket, from: peerID, peripheral: nil) - - // Should mark negotiation as failed - } - - // MARK: - State Management Tests - - func testVersionStateCleanupOnDisconnect() { - let peerID = "disconnectpeer12" - - // First establish some version negotiation state - let hello = VersionHello( - clientVersion: "1.0.0", - platform: "iOS" - ) - - guard let helloData = hello.encode() else { - XCTFail("Failed to encode hello") - return - } - - let helloPacket = BitchatPacket( - type: MessageType.versionHello.rawValue, - senderID: Data(hexString: peerID) ?? Data(), - recipientID: nil, - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: helloData, - signature: nil, - ttl: 1 - ) - - // Process hello to establish state - meshService.handleReceivedPacket(helloPacket, from: peerID, peripheral: nil) - - // Simulate disconnect - // In real implementation, we'd trigger the disconnect logic - // and verify state is cleaned up - } - - // MARK: - Error Handling Tests - - func testMalformedVersionHello() { - let peerID = "malformedpeer123" - - // Send malformed data - let malformedPacket = BitchatPacket( - type: MessageType.versionHello.rawValue, - senderID: Data(hexString: peerID) ?? Data(), - recipientID: nil, - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: Data("not valid json".utf8), - signature: nil, - ttl: 1 - ) - - // Should handle gracefully without crashing - meshService.handleReceivedPacket(malformedPacket, from: peerID, peripheral: nil) - } - - func testMalformedVersionAck() { - let peerID = "malformedackpeer" - - // Send malformed ack data - let malformedPacket = BitchatPacket( - type: MessageType.versionAck.rawValue, - senderID: Data(hexString: peerID) ?? Data(), - recipientID: meshService.getMyPeerID().data(using: .utf8), - timestamp: UInt64(Date().timeIntervalSince1970 * 1000), - payload: Data("{invalid json}".utf8), - signature: nil, - ttl: 1 - ) - - // Should handle gracefully without crashing - meshService.handleReceivedPacket(malformedPacket, from: peerID, peripheral: nil) - } - - // MARK: - Performance Tests - - func testVersionNegotiationPerformance() { - measure { - // Test encoding/decoding performance - for i in 0..<1000 { - let hello = VersionHello( - supportedVersions: [1, 2, 3], - preferredVersion: 3, - clientVersion: "1.\(i).0", - platform: "iOS", - capabilities: ["cap1", "cap2", "cap3"] - ) - - if let data = hello.encode(), - let _ = VersionHello.decode(from: data) { - // Success - } else { - XCTFail("Failed at iteration \(i)") - } - } - } - } -} - -// MARK: - Mock Delegate - -class MockBitchatDelegate: BitchatDelegate { - var receivedMessages: [BitchatMessage] = [] - var connectedPeers: [String] = [] - var disconnectedPeers: [String] = [] - - func didReceiveMessage(_ message: BitchatMessage) { - receivedMessages.append(message) - } - - func didConnectToPeer(_ peerID: String) { - connectedPeers.append(peerID) - } - - func didDisconnectFromPeer(_ peerID: String) { - disconnectedPeers.append(peerID) - } - - func didUpdatePeerList(_ peers: [String]) { - // Not used in these tests - } - - func didReceiveChannelLeave(_ channel: String, from peerID: String) { - // Not used in these tests - } - - func didReceivePasswordProtectedChannelAnnouncement(_ channel: String, isProtected: Bool, creatorID: String?, keyCommitment: String?) { - // Not used in these tests - } - - func didReceiveChannelRetentionAnnouncement(_ channel: String, enabled: Bool, creatorID: String?) { - // Not used in these tests - } - - func decryptChannelMessage(_ encryptedContent: Data, channel: String) -> String? { - return nil - } -} \ No newline at end of file diff --git a/bitchatTests/VersionNegotiationScenarioTests.swift b/bitchatTests/VersionNegotiationScenarioTests.swift deleted file mode 100644 index 2dbd3ee6..00000000 --- a/bitchatTests/VersionNegotiationScenarioTests.swift +++ /dev/null @@ -1,297 +0,0 @@ -// -// VersionNegotiationScenarioTests.swift -// bitchatTests -// -// This is free and unencumbered software released into the public domain. -// For more information, see -// - -import XCTest -@testable import bitchat - -class VersionNegotiationScenarioTests: XCTestCase { - - // MARK: - Real-World Scenarios - - func testOldClientConnectsToNewServer() { - // Scenario: Old client (v1 only) connects to new server (v1, v2, v3) - let oldClientVersions: [UInt8] = [1] - let newServerVersions: [UInt8] = [1, 2, 3] - - let agreed = ProtocolVersion.negotiateVersion( - clientVersions: oldClientVersions, - serverVersions: newServerVersions - ) - - XCTAssertEqual(agreed, 1, "Should agree on v1 for backward compatibility") - } - - func testNewClientConnectsToOldServer() { - // Scenario: New client (v1, v2, v3) connects to old server (v1 only) - let newClientVersions: [UInt8] = [1, 2, 3] - let oldServerVersions: [UInt8] = [1] - - let agreed = ProtocolVersion.negotiateVersion( - clientVersions: newClientVersions, - serverVersions: oldServerVersions - ) - - XCTAssertEqual(agreed, 1, "Should agree on v1 for backward compatibility") - } - - func testMixedVersionNetwork() { - // Scenario: Network with mixed client versions - let clients: [[UInt8]] = [ - [1], // Old client - [1, 2], // Mid-version client - [1, 2, 3] // New client - ] - - // All should be able to negotiate with each other - for (i, client1) in clients.enumerated() { - for (j, client2) in clients.enumerated() { - let agreed = ProtocolVersion.negotiateVersion( - clientVersions: client1, - serverVersions: client2 - ) - - XCTAssertNotNil(agreed, "Clients \(i) and \(j) should negotiate successfully") - XCTAssertGreaterThanOrEqual(agreed ?? 0, 1, "Should at least agree on v1") - } - } - } - - func testFutureClientWithUnsupportedVersion() { - // Scenario: Future client with only unsupported versions - let futureClientVersions: [UInt8] = [10, 11, 12] - let currentServerVersions: [UInt8] = Array(ProtocolVersion.supportedVersions) - - let agreed = ProtocolVersion.negotiateVersion( - clientVersions: futureClientVersions, - serverVersions: currentServerVersions - ) - - XCTAssertNil(agreed, "Should fail to negotiate with incompatible future client") - } - - // MARK: - Race Condition Tests - - func testSimultaneousVersionHello() { - // Scenario: Both peers send version hello at the same time - // This tests that the protocol handles simultaneous negotiation - - let hello1 = VersionHello( - supportedVersions: [1, 2], - preferredVersion: 2, - clientVersion: "1.1.0", - platform: "iOS" - ) - - let hello2 = VersionHello( - supportedVersions: [1, 2, 3], - preferredVersion: 3, - clientVersion: "1.2.0", - platform: "macOS" - ) - - // Both should be able to encode/decode regardless of order - XCTAssertNotNil(hello1.encode()) - XCTAssertNotNil(hello2.encode()) - - // Version negotiation should be deterministic - let agreed1 = ProtocolVersion.negotiateVersion( - clientVersions: hello1.supportedVersions, - serverVersions: hello2.supportedVersions - ) - - let agreed2 = ProtocolVersion.negotiateVersion( - clientVersions: hello2.supportedVersions, - serverVersions: hello1.supportedVersions - ) - - XCTAssertEqual(agreed1, agreed2, "Negotiation should be symmetric") - XCTAssertEqual(agreed1, 2, "Should agree on highest common version") - } - - // MARK: - Error Recovery Tests - - func testRecoveryFromFailedNegotiation() { - // Test that a peer can retry after failed negotiation - var state = VersionNegotiationState.failed(reason: "Network error") - - // Reset state for retry - state = .none - - // Should be able to start new negotiation - state = .helloSent - - if case .helloSent = state { - // Success - can retry after failure - } else { - XCTFail("Should be able to retry after failed negotiation") - } - } - - func testPartialMessageHandling() { - // Test handling of truncated version messages - let truncatedData = Data([123, 34]) // Partial JSON - - XCTAssertNil(VersionHello.decode(from: truncatedData)) - XCTAssertNil(VersionAck.decode(from: truncatedData)) - - // Should not crash, just return nil - } - - // MARK: - Platform Compatibility Tests - - func testCrossPlatformNegotiation() { - let platforms = ["iOS", "macOS", "iPadOS", "Unknown"] - - for platform1 in platforms { - for platform2 in platforms { - let hello1 = VersionHello( - clientVersion: "1.0.0", - platform: platform1 - ) - - let hello2 = VersionHello( - clientVersion: "1.0.0", - platform: platform2 - ) - - // All platforms should be able to negotiate - XCTAssertNotNil(hello1.encode()) - XCTAssertNotNil(hello2.encode()) - - // Platform difference should not affect version negotiation - let agreed = ProtocolVersion.negotiateVersion( - clientVersions: hello1.supportedVersions, - serverVersions: hello2.supportedVersions - ) - - XCTAssertNotNil(agreed, "\(platform1) and \(platform2) should negotiate") - } - } - } - - // MARK: - Capability Tests - - func testCapabilityNegotiation() { - // Test future capability negotiation - let clientCapabilities = ["noise", "compression", "multipath"] - let serverCapabilities = ["noise", "compression", "federation"] - - _ = VersionHello( - clientVersion: "1.0.0", - platform: "iOS", - capabilities: clientCapabilities - ) - - _ = VersionAck( - agreedVersion: 1, - serverVersion: "1.0.0", - platform: "macOS", - capabilities: serverCapabilities - ) - - // Find common capabilities (for future use) - let commonCapabilities = Set(clientCapabilities).intersection(Set(serverCapabilities)) - XCTAssertEqual(commonCapabilities, ["noise", "compression"]) - } - - func testEmptyCapabilityHandling() { - // Test peers with no capabilities - let hello1 = VersionHello( - clientVersion: "1.0.0", - platform: "iOS", - capabilities: nil - ) - - let hello2 = VersionHello( - clientVersion: "1.0.0", - platform: "macOS", - capabilities: [] - ) - - XCTAssertNotNil(hello1.encode()) - XCTAssertNotNil(hello2.encode()) - - // Should still negotiate successfully - let agreed = ProtocolVersion.negotiateVersion( - clientVersions: hello1.supportedVersions, - serverVersions: hello2.supportedVersions - ) - - XCTAssertNotNil(agreed) - } - - // MARK: - Stress Tests - - func testManyVersionsNegotiation() { - // Test with many supported versions - let manyVersions = Array(1...100) - let someVersions = Array([1, 50, 75, 100]) - - let agreed = ProtocolVersion.negotiateVersion( - clientVersions: manyVersions, - serverVersions: someVersions - ) - - XCTAssertEqual(agreed, 100, "Should pick highest common version") - } - - func testRapidConnectionDisconnection() { - // Test rapid connect/disconnect cycles - var states: [String: VersionNegotiationState] = [:] - - for i in 0..<100 { - let peerID = "peer\(i)" - - // Connect - states[peerID] = .helloSent - - // Negotiate - states[peerID] = .ackReceived(version: 1) - - // Disconnect - states.removeValue(forKey: peerID) - } - - XCTAssertTrue(states.isEmpty, "All states should be cleaned up") - } - - // MARK: - Security Tests - - func testLargeVersionListDoS() { - // Test protection against DoS with huge version lists - let hugeVersionList = Array(0...255) // All possible versions - - let hello = VersionHello( - supportedVersions: hugeVersionList, - preferredVersion: 255, - clientVersion: "1.0.0", - platform: "iOS" - ) - - // Should handle without performance issues - let startTime = Date() - _ = hello.encode() - let encodingTime = Date().timeIntervalSince(startTime) - - XCTAssertLessThan(encodingTime, 0.1, "Encoding should be fast even with large version list") - } - - func testVersionDowngradeAttack() { - // Test that negotiation always picks highest common version - // to prevent downgrade attacks - let clientVersions: [UInt8] = [1, 2, 3] - let serverVersions: [UInt8] = [1, 2, 3] - - let agreed = ProtocolVersion.negotiateVersion( - clientVersions: clientVersions, - serverVersions: serverVersions - ) - - XCTAssertEqual(agreed, 3, "Should not allow downgrade to lower version") - } -} \ No newline at end of file