mirror of
https://github.com/permissionlesstech/bitchat.git
synced 2026-07-25 20:45:19 +00:00
Compare commits
3
Commits
| Author | SHA1 | Date | |
|---|---|---|---|
 jack
|
749d80aa85 | ||
|
jack
|
29976f4e19 | ||
|
jack
|
bb67ababaf |
@@ -7,6 +7,14 @@
|
||||
objects = {
|
||||
|
||||
/* Begin PBXBuildFile section */
|
||||
04657AB52E633C6A002D5BBE /* NostrPoW.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04657AB42E633C6A002D5BBE /* NostrPoW.swift */; };
|
||||
04657AB62E633C6A002D5BBE /* NostrPoW.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04657AB42E633C6A002D5BBE /* NostrPoW.swift */; };
|
||||
04657AB82E633C76002D5BBE /* PowPolicy.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04657AB72E633C76002D5BBE /* PowPolicy.swift */; };
|
||||
04657AB92E633C76002D5BBE /* PowPolicy.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04657AB72E633C76002D5BBE /* PowPolicy.swift */; };
|
||||
04657ABB2E633C94002D5BBE /* MiningAnimation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04657ABA2E633C94002D5BBE /* MiningAnimation.swift */; };
|
||||
04657ABC2E633C94002D5BBE /* MiningAnimation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04657ABA2E633C94002D5BBE /* MiningAnimation.swift */; };
|
||||
04657ABE2E633CA4002D5BBE /* NostrPoWTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04657ABD2E633CA4002D5BBE /* NostrPoWTests.swift */; };
|
||||
04657ABF2E633CA4002D5BBE /* NostrPoWTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04657ABD2E633CA4002D5BBE /* NostrPoWTests.swift */; };
|
||||
047502802E53A0FC0083520F /* FragmentationTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0475027E2E53A0FC0083520F /* FragmentationTests.swift */; };
|
||||
047502812E53A0FC0083520F /* FragmentationTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0475027E2E53A0FC0083520F /* FragmentationTests.swift */; };
|
||||
047502872E5416250083520F /* Geohash.swift in Sources */ = {isa = PBXBuildFile; fileRef = 047502852E5416250083520F /* Geohash.swift */; };
|
||||
@@ -197,6 +205,10 @@
|
||||
|
||||
/* Begin PBXFileReference section */
|
||||
03C57F452B55FD0FD8F51421 /* bitchatTests_macOS.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = bitchatTests_macOS.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
|
||||
04657AB42E633C6A002D5BBE /* NostrPoW.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NostrPoW.swift; sourceTree = "<group>"; };
|
||||
04657AB72E633C76002D5BBE /* PowPolicy.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PowPolicy.swift; sourceTree = "<group>"; };
|
||||
04657ABA2E633C94002D5BBE /* MiningAnimation.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MiningAnimation.swift; sourceTree = "<group>"; };
|
||||
04657ABD2E633CA4002D5BBE /* NostrPoWTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NostrPoWTests.swift; sourceTree = "<group>"; };
|
||||
0475027E2E53A0FC0083520F /* FragmentationTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FragmentationTests.swift; sourceTree = "<group>"; };
|
||||
047502852E5416250083520F /* Geohash.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Geohash.swift; sourceTree = "<group>"; };
|
||||
047502862E5416250083520F /* LocationChannel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LocationChannel.swift; sourceTree = "<group>"; };
|
||||
@@ -451,6 +463,7 @@
|
||||
A55126E93155456CAA8D6656 /* Views */ = {
|
||||
isa = PBXGroup;
|
||||
children = (
|
||||
04657ABA2E633C94002D5BBE /* MiningAnimation.swift */,
|
||||
AA77BB13CC22DD33EE44FF57 /* VerificationViews.swift */,
|
||||
047502B22E55FED60083520F /* GeohashPeopleList.swift */,
|
||||
047502B32E55FED60083520F /* MeshPeerList.swift */,
|
||||
@@ -489,8 +502,9 @@
|
||||
C3D98EB3E1B455E321F519F4 /* bitchatTests */ = {
|
||||
isa = PBXGroup;
|
||||
children = (
|
||||
048A4C2A2E5FCE0300162C4A /* GeohashBookmarksStoreTests.swift */,
|
||||
D69A18D27F9A565FD6041E12 /* Info.plist */,
|
||||
04657ABD2E633CA4002D5BBE /* NostrPoWTests.swift */,
|
||||
048A4C2A2E5FCE0300162C4A /* GeohashBookmarksStoreTests.swift */,
|
||||
047502912E547ACC0083520F /* LocationChannelsTests.swift */,
|
||||
C272F137CE00FC5A96E0CC06 /* NostrProtocolTests.swift */,
|
||||
980B109CBA72BC996455C62B /* BLEServiceTests.swift */,
|
||||
@@ -526,6 +540,7 @@
|
||||
D98A3186D7E4C72E35BDF7FE /* Services */ = {
|
||||
isa = PBXGroup;
|
||||
children = (
|
||||
04657AB72E633C76002D5BBE /* PowPolicy.swift */,
|
||||
048A4C272E5FCD6600162C4A /* GeohashBookmarksStore.swift */,
|
||||
048A4BE62E5CCCC300162C4A /* TransportConfig.swift */,
|
||||
AA77BB10CC22DD33EE44FF55 /* VerificationService.swift */,
|
||||
@@ -550,6 +565,7 @@
|
||||
E78C7F4B6769C0A72F5DE544 /* Nostr */ = {
|
||||
isa = PBXGroup;
|
||||
children = (
|
||||
04657AB42E633C6A002D5BBE /* NostrPoW.swift */,
|
||||
A1B2C3D44E5F60718293A4B4 /* XChaCha20Poly1305Compat.swift */,
|
||||
049BD39B2E51DBD9001A566B /* NostrEmbeddedBitChat.swift */,
|
||||
5F8043995007F0D84438EDD9 /* NostrIdentity.swift */,
|
||||
@@ -792,15 +808,18 @@
|
||||
749D8CF8A362B6CD0786782D /* NotificationService.swift in Sources */,
|
||||
049BD3AF2E51ED60001A566B /* Transport.swift in Sources */,
|
||||
E2DCF7817344F1CCDB8B7B2F /* SecureIdentityStateManager.swift in Sources */,
|
||||
04657ABC2E633C94002D5BBE /* MiningAnimation.swift in Sources */,
|
||||
049BD3A02E51DBF4001A566B /* Packets.swift in Sources */,
|
||||
047502892E5416250083520F /* Geohash.swift in Sources */,
|
||||
0475028A2E5416250083520F /* LocationChannel.swift in Sources */,
|
||||
04657AB82E633C76002D5BBE /* PowPolicy.swift in Sources */,
|
||||
049BD3A12E51DBF4001A566B /* PeerID.swift in Sources */,
|
||||
049BD3942E4EC4F0001A566B /* PrivateChatManager.swift in Sources */,
|
||||
049BD3952E4EC4F0001A566B /* AutocompleteService.swift in Sources */,
|
||||
049BD3962E4EC4F0001A566B /* CommandProcessor.swift in Sources */,
|
||||
D111988977C3BC246AB27FA4 /* SecureLogger.swift in Sources */,
|
||||
8DE687D2EB5EB120868DBFB5 /* BLEService.swift in Sources */,
|
||||
04657AB52E633C6A002D5BBE /* NostrPoW.swift in Sources */,
|
||||
AA11BB22CC33DD44EE55FF66 /* MessageTextHelpers.swift in Sources */,
|
||||
E0A1B2C3D4E5F6012345678B /* GeoRelayDirectory.swift in Sources */,
|
||||
);
|
||||
@@ -852,15 +871,18 @@
|
||||
61C81ED5F679D5E973EE0C07 /* NotificationService.swift in Sources */,
|
||||
049BD3AE2E51ED60001A566B /* Transport.swift in Sources */,
|
||||
68C4BE564735F6E7915274A2 /* SecureIdentityStateManager.swift in Sources */,
|
||||
04657ABB2E633C94002D5BBE /* MiningAnimation.swift in Sources */,
|
||||
049BD3A22E51DBF4001A566B /* Packets.swift in Sources */,
|
||||
047502872E5416250083520F /* Geohash.swift in Sources */,
|
||||
047502882E5416250083520F /* LocationChannel.swift in Sources */,
|
||||
04657AB92E633C76002D5BBE /* PowPolicy.swift in Sources */,
|
||||
049BD3A32E51DBF4001A566B /* PeerID.swift in Sources */,
|
||||
049BD3902E4EC4F0001A566B /* PrivateChatManager.swift in Sources */,
|
||||
049BD3912E4EC4F0001A566B /* AutocompleteService.swift in Sources */,
|
||||
049BD3922E4EC4F0001A566B /* CommandProcessor.swift in Sources */,
|
||||
EC5241969D2550B97629EBD0 /* SecureLogger.swift in Sources */,
|
||||
C165DD35BB8E9C327A3C2DA4 /* BLEService.swift in Sources */,
|
||||
04657AB62E633C6A002D5BBE /* NostrPoW.swift in Sources */,
|
||||
AA11BB22CC33DD44EE55FF67 /* MessageTextHelpers.swift in Sources */,
|
||||
E0A1B2C3D4E5F6012345678C /* GeoRelayDirectory.swift in Sources */,
|
||||
);
|
||||
@@ -875,6 +897,7 @@
|
||||
8F282E9CCA5AE1ECC001D2E4 /* IntegrationTests.swift in Sources */,
|
||||
047502B12E55E8450083520F /* InputValidatorTests.swift in Sources */,
|
||||
D727EA273CB214FC32612469 /* MockBluetoothMeshService.swift in Sources */,
|
||||
04657ABF2E633CA4002D5BBE /* NostrPoWTests.swift in Sources */,
|
||||
047502932E547ACC0083520F /* LocationChannelsTests.swift in Sources */,
|
||||
048A4C2B2E5FCE0300162C4A /* GeohashBookmarksStoreTests.swift in Sources */,
|
||||
6C803BF930E7E19BE6E99EAA /* MockBLEService.swift in Sources */,
|
||||
@@ -898,6 +921,7 @@
|
||||
686441ABC2AF83EE98E6ECF2 /* IntegrationTests.swift in Sources */,
|
||||
047502B02E55E8450083520F /* InputValidatorTests.swift in Sources */,
|
||||
8851F08D88C5B1DE7B9F55C6 /* MockBluetoothMeshService.swift in Sources */,
|
||||
04657ABE2E633CA4002D5BBE /* NostrPoWTests.swift in Sources */,
|
||||
047502922E547ACC0083520F /* LocationChannelsTests.swift in Sources */,
|
||||
048A4C2C2E5FCE0300162C4A /* GeohashBookmarksStoreTests.swift in Sources */,
|
||||
3849CA6D99B2D536636DF4A6 /* MockBLEService.swift in Sources */,
|
||||
|
||||
@@ -0,0 +1,96 @@
|
||||
import Foundation
|
||||
import CryptoKit
|
||||
import Security
|
||||
import Darwin
|
||||
|
||||
/// NIP-13 Proof-of-Work utilities for Nostr events.
|
||||
/// - Counts leading zero bits and mines a nonce tag to meet a target.
|
||||
enum NostrPoW {
|
||||
/// Table of leading zero bit counts for all 256 byte values.
|
||||
private static let lzTable: [UInt8] = {
|
||||
(0...255).map { v -> UInt8 in
|
||||
var x = UInt8(v)
|
||||
if x == 0 { return 8 }
|
||||
var n: UInt8 = 0
|
||||
while (x & 0x80) == 0 {
|
||||
n &+= 1
|
||||
x <<= 1
|
||||
}
|
||||
return n
|
||||
}
|
||||
}()
|
||||
|
||||
/// Count leading zero bits in a 32-byte hash.
|
||||
static func leadingZeroBits(_ data: Data) -> Int {
|
||||
var total = 0
|
||||
for b in data {
|
||||
let lz = Int(lzTable[Int(b)])
|
||||
total += lz
|
||||
if lz != 8 { break }
|
||||
}
|
||||
return total
|
||||
}
|
||||
|
||||
/// Compute Nostr event id hash (SHA-256 over canonical serialization) for given fields.
|
||||
private static func eventIDHash(pubkey: String, createdAt: Int, kind: Int, tags: [[String]], content: String) -> (hex: String, data: Data) {
|
||||
let serialized: [Any] = [0, pubkey, createdAt, kind, tags, content]
|
||||
let json = try! JSONSerialization.data(withJSONObject: serialized, options: [.withoutEscapingSlashes])
|
||||
let digest = SHA256.hash(data: json)
|
||||
let data = Data(digest)
|
||||
let hex = data.map { String(format: "%02x", $0) }.joined()
|
||||
return (hex, data)
|
||||
}
|
||||
|
||||
/// Mine a NIP-13 nonce tag that satisfies the target leading-zero bits.
|
||||
/// - Parameters:
|
||||
/// - pubkey: x-only hex pubkey (64-hex chars)
|
||||
/// - createdAt: seconds since epoch
|
||||
/// - kind: event kind
|
||||
/// - baseTags: existing tags (e.g., [ ["g", geohash], ["n", nickname], ... ])
|
||||
/// - content: event content
|
||||
/// - targetBits: required leading zero bits
|
||||
/// - startNonce: optional starting nonce (random if nil)
|
||||
/// - Returns: (nonce, idHex)
|
||||
static func mine(pubkey: String,
|
||||
createdAt: Int,
|
||||
kind: Int,
|
||||
baseTags: [[String]],
|
||||
content: String,
|
||||
targetBits: Int,
|
||||
startNonce: UInt64? = nil) -> (nonce: UInt64, idHex: String) {
|
||||
var nonce: UInt64 = startNonce ?? randomNonce()
|
||||
// Build a local tags buffer once to avoid reallocating unrelated tags
|
||||
var tags = baseTags
|
||||
tags.append(["nonce", "0", String(targetBits)])
|
||||
|
||||
var iter: UInt64 = 0
|
||||
while true {
|
||||
var solved = false
|
||||
var idHexOut = ""
|
||||
// Use an autorelease pool periodically to keep memory stable on iOS
|
||||
autoreleasepool {
|
||||
// Update nonce tag value (second element)
|
||||
tags[tags.count - 1][1] = String(nonce)
|
||||
let (idHex, idData) = eventIDHash(pubkey: pubkey, createdAt: createdAt, kind: kind, tags: tags, content: content)
|
||||
if leadingZeroBits(idData) >= targetBits {
|
||||
solved = true
|
||||
idHexOut = idHex
|
||||
}
|
||||
}
|
||||
if solved {
|
||||
return (nonce, idHexOut)
|
||||
}
|
||||
nonce &+= 1
|
||||
iter &+= 1
|
||||
if iter & 0x3FFF == 0 { /* yield every ~16k iterations */ _ = sched_yield() }
|
||||
}
|
||||
}
|
||||
|
||||
private static func randomNonce() -> UInt64 {
|
||||
var n: UInt64 = 0
|
||||
withUnsafeMutableBytes(of: &n) { ptr in
|
||||
_ = SecRandomCopyBytes(kSecRandomDefault, ptr.count, ptr.baseAddress!)
|
||||
}
|
||||
return n
|
||||
}
|
||||
}
|
||||
@@ -409,6 +409,8 @@ class BitchatMessage: Codable {
|
||||
let senderPeerID: String?
|
||||
let mentions: [String]? // Array of mentioned nicknames
|
||||
var deliveryStatus: DeliveryStatus? // Delivery tracking
|
||||
// Mining state for Nostr geohash PoW (UI hint: hide timestamp, animate)
|
||||
var isMiningPow: Bool? // default nil/false
|
||||
|
||||
// Cached formatted text (not included in Codable)
|
||||
private var _cachedFormattedText: [String: AttributedString] = [:]
|
||||
@@ -421,13 +423,18 @@ class BitchatMessage: Codable {
|
||||
_cachedFormattedText["\(isDark)-\(isSelf)"] = text
|
||||
}
|
||||
|
||||
func clearCachedFormattedText() {
|
||||
_cachedFormattedText.removeAll()
|
||||
}
|
||||
|
||||
// Codable implementation
|
||||
enum CodingKeys: String, CodingKey {
|
||||
case id, sender, content, timestamp, isRelay, originalSender
|
||||
case isPrivate, recipientNickname, senderPeerID, mentions, deliveryStatus
|
||||
case isMiningPow
|
||||
}
|
||||
|
||||
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) {
|
||||
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, isMiningPow: Bool? = nil) {
|
||||
self.id = id ?? UUID().uuidString
|
||||
self.sender = sender
|
||||
self.content = content
|
||||
@@ -439,6 +446,7 @@ class BitchatMessage: Codable {
|
||||
self.senderPeerID = senderPeerID
|
||||
self.mentions = mentions
|
||||
self.deliveryStatus = deliveryStatus ?? (isPrivate ? .sending : nil)
|
||||
self.isMiningPow = isMiningPow
|
||||
}
|
||||
}
|
||||
|
||||
@@ -455,7 +463,8 @@ extension BitchatMessage: Equatable {
|
||||
lhs.recipientNickname == rhs.recipientNickname &&
|
||||
lhs.senderPeerID == rhs.senderPeerID &&
|
||||
lhs.mentions == rhs.mentions &&
|
||||
lhs.deliveryStatus == rhs.deliveryStatus
|
||||
lhs.deliveryStatus == rhs.deliveryStatus &&
|
||||
(lhs.isMiningPow ?? false) == (rhs.isMiningPow ?? false)
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@@ -0,0 +1,17 @@
|
||||
import Foundation
|
||||
|
||||
/// Simple default policy for NIP-13 difficulty on geohash chats.
|
||||
/// Progressive by geohash precision; adjustable later by live activity.
|
||||
enum PowPolicy {
|
||||
/// Determine target bits for a given geohash string.
|
||||
/// Clamped to a sane range to keep UX responsive on phones.
|
||||
static func requiredBits(forGeohash geohash: String) -> Int {
|
||||
let precision = geohash.count
|
||||
// Start at 13 and go down with higher precision (smaller areas)
|
||||
switch precision {
|
||||
case ...5: return 16
|
||||
case 6: return 15
|
||||
default: return 14
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -796,6 +796,17 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
guard event.kind == NostrProtocol.EventKind.ephemeralEvent.rawValue else { return }
|
||||
if self.processedNostrEvents.contains(event.id) { return }
|
||||
self.processedNostrEvents.insert(event.id)
|
||||
// PoW filter: require local difficulty for this geohash
|
||||
let ghFromTag: String? = event.tags.first(where: { $0.first?.lowercased() == "g" && $0.count >= 2 })?.dropFirst().first
|
||||
let ghValue = ghFromTag ?? ch.geohash
|
||||
if let idData = Data(hexString: event.id) {
|
||||
let powBits = NostrPoW.leadingZeroBits(idData)
|
||||
let required = PowPolicy.requiredBits(forGeohash: ghValue)
|
||||
if powBits < required {
|
||||
// Drop low PoW event
|
||||
return
|
||||
}
|
||||
}
|
||||
if let gh = self.currentGeohash,
|
||||
let myGeoIdentity = try? NostrIdentityBridge.deriveIdentity(forGeohash: gh),
|
||||
myGeoIdentity.publicKeyHex.lowercased() == event.pubkey.lowercased() {
|
||||
@@ -813,8 +824,11 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
let key8 = "nostr:" + String(event.pubkey.prefix(TransportConfig.nostrShortKeyDisplayLength))
|
||||
self.nostrKeyMapping[key8] = event.pubkey
|
||||
|
||||
// Update participants last-seen for this pubkey
|
||||
self.recordGeoParticipant(pubkeyHex: event.pubkey)
|
||||
// Update participants last-seen for this pubkey with observed PoW bits
|
||||
if let idData = Data(hexString: event.id) {
|
||||
let powBits = NostrPoW.leadingZeroBits(idData)
|
||||
self.recordGeoParticipant(pubkeyHex: event.pubkey, geohash: ch.geohash, powBits: powBits)
|
||||
}
|
||||
|
||||
// Track teleported tag (only our format ["t","teleport"]) for icon state
|
||||
let hasTeleportTag = event.tags.contains(where: { tag in
|
||||
@@ -1320,7 +1334,11 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
isPrivate: false,
|
||||
recipientNickname: nil,
|
||||
senderPeerID: localSenderPeerID,
|
||||
mentions: mentions.isEmpty ? nil : mentions
|
||||
mentions: mentions.isEmpty ? nil : mentions,
|
||||
deliveryStatus: nil,
|
||||
isMiningPow: {
|
||||
if case .location(_) = activeChannel { return true } else { return nil }
|
||||
}()
|
||||
)
|
||||
|
||||
// Add to main messages immediately for user feedback
|
||||
@@ -1353,17 +1371,42 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
}
|
||||
|
||||
if case .location(let ch) = activeChannel {
|
||||
// Send to geohash channel via Nostr ephemeral
|
||||
Task { @MainActor in
|
||||
// Send to geohash channel via Nostr ephemeral with PoW
|
||||
let msgID = message.id
|
||||
let contentToSend = trimmed
|
||||
Task {@MainActor in
|
||||
do {
|
||||
let identity = try NostrIdentityBridge.deriveIdentity(forGeohash: ch.geohash)
|
||||
let event = try NostrProtocol.createEphemeralGeohashEvent(
|
||||
content: trimmed,
|
||||
geohash: ch.geohash,
|
||||
senderIdentity: identity,
|
||||
nickname: self.nickname,
|
||||
teleported: LocationChannelManager.shared.teleported
|
||||
let createdAt = Int(message.timestamp.timeIntervalSince1970)
|
||||
var baseTags = [["g", ch.geohash]]
|
||||
if !self.nickname.isEmpty { baseTags.append(["n", self.nickname]) }
|
||||
if LocationChannelManager.shared.teleported { baseTags.append(["t", "teleport"]) }
|
||||
let bits = PowPolicy.requiredBits(forGeohash: ch.geohash)
|
||||
// Mine off the main thread
|
||||
let (nonce, _) = await withCheckedContinuation { (cont: CheckedContinuation<(UInt64, String), Never>) in
|
||||
DispatchQueue.global(qos: .utility).async {
|
||||
let res = NostrPoW.mine(pubkey: identity.publicKeyHex,
|
||||
createdAt: createdAt,
|
||||
kind: NostrProtocol.EventKind.ephemeralEvent.rawValue,
|
||||
baseTags: baseTags,
|
||||
content: contentToSend,
|
||||
targetBits: bits)
|
||||
cont.resume(returning: (res.nonce, res.idHex))
|
||||
}
|
||||
}
|
||||
// Build final event with nonce tag and sign
|
||||
var tags = baseTags
|
||||
tags.append(["nonce", String(nonce), String(bits)])
|
||||
var event = NostrEvent(
|
||||
pubkey: identity.publicKeyHex,
|
||||
createdAt: message.timestamp,
|
||||
kind: .ephemeralEvent,
|
||||
tags: tags,
|
||||
content: contentToSend
|
||||
)
|
||||
let schnorrKey = try identity.schnorrSigningKey()
|
||||
event = try event.sign(with: schnorrKey)
|
||||
|
||||
let targetRelays = GeoRelayDirectory.shared.closestRelays(
|
||||
toGeohash: ch.geohash,
|
||||
count: TransportConfig.nostrGeoRelayCount
|
||||
@@ -1373,12 +1416,22 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
} else {
|
||||
NostrRelayManager.shared.sendEvent(event, to: targetRelays)
|
||||
}
|
||||
// Track ourselves as active participant
|
||||
// Track ourselves as active participant with PoW record
|
||||
if let idData = Data(hexString: event.id) {
|
||||
let powBits = NostrPoW.leadingZeroBits(idData)
|
||||
self.recordGeoParticipant(pubkeyHex: identity.publicKeyHex, geohash: ch.geohash, powBits: powBits)
|
||||
} else {
|
||||
self.recordGeoParticipant(pubkeyHex: identity.publicKeyHex)
|
||||
SecureLogger.log("GeoTeleport: sent geo message pub=\(identity.publicKeyHex.prefix(8))… teleported=\(LocationChannelManager.shared.teleported)",
|
||||
category: SecureLogger.session, level: .debug)
|
||||
// If we tagged this as teleported, also mark our pubkey in teleportedGeo for UI
|
||||
// Only when not in our regional set (and regional list is known)
|
||||
}
|
||||
SecureLogger.log("Geo: sent geo event id=\(event.id.prefix(12))… bits=\(bits) nonce=\(String(nonce))", category: SecureLogger.session, level: .debug)
|
||||
// Reveal timestamp / stop animation
|
||||
if let idx = self.messages.firstIndex(where: { $0.id == msgID }) {
|
||||
self.messages[idx].isMiningPow = false
|
||||
self.messages[idx].clearCachedFormattedText()
|
||||
// Trigger UI refresh so timestamp appears
|
||||
self.objectWillChange.send()
|
||||
}
|
||||
// If teleported and outside regional set, mark self teleported
|
||||
let hasRegional = !LocationChannelManager.shared.availableChannels.isEmpty
|
||||
let inRegional = LocationChannelManager.shared.availableChannels.contains { $0.geohash == ch.geohash }
|
||||
if LocationChannelManager.shared.teleported && hasRegional && !inRegional {
|
||||
@@ -1390,6 +1443,11 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
} catch {
|
||||
SecureLogger.log("❌ Failed to send geohash message: \(error)", category: SecureLogger.session, level: .error)
|
||||
self.addSystemMessage("failed to send to location channel")
|
||||
if let idx = self.messages.firstIndex(where: { $0.id == msgID }) {
|
||||
self.messages[idx].isMiningPow = false
|
||||
self.messages[idx].clearCachedFormattedText()
|
||||
self.objectWillChange.send()
|
||||
}
|
||||
}
|
||||
}
|
||||
} else {
|
||||
@@ -1491,6 +1549,16 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
// Deduplicate
|
||||
if self.processedNostrEvents.contains(event.id) { return }
|
||||
self.recordProcessedEvent(event.id)
|
||||
// PoW filter for geohash events
|
||||
let ghFromTag: String? = event.tags.first(where: { $0.first?.lowercased() == "g" && $0.count >= 2 })?.dropFirst().first
|
||||
let ghValue = ghFromTag ?? ch.geohash
|
||||
if let idData = Data(hexString: event.id) {
|
||||
let powBits = NostrPoW.leadingZeroBits(idData)
|
||||
let required = PowPolicy.requiredBits(forGeohash: ghValue)
|
||||
if powBits < required {
|
||||
return
|
||||
}
|
||||
}
|
||||
// Log incoming tags for diagnostics
|
||||
let tagSummary = event.tags.map { "[" + $0.joined(separator: ",") + "]" }.joined(separator: ",")
|
||||
SecureLogger.log("GeoTeleport: recv pub=\(event.pubkey.prefix(8))… tags=\(tagSummary)",
|
||||
@@ -1537,8 +1605,11 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
self.nostrKeyMapping[key16] = event.pubkey
|
||||
let key8 = "nostr:" + String(event.pubkey.prefix(TransportConfig.nostrShortKeyDisplayLength))
|
||||
self.nostrKeyMapping[key8] = event.pubkey
|
||||
// Update participants last-seen for this pubkey
|
||||
self.recordGeoParticipant(pubkeyHex: event.pubkey)
|
||||
// Update participants last-seen for this pubkey with observed PoW bits
|
||||
if let idData = Data(hexString: event.id) {
|
||||
let powBits = NostrPoW.leadingZeroBits(idData)
|
||||
self.recordGeoParticipant(pubkeyHex: event.pubkey, geohash: ch.geohash, powBits: powBits)
|
||||
}
|
||||
|
||||
let senderName = self.displayNameForNostrPubkey(event.pubkey)
|
||||
let content = event.content
|
||||
@@ -1723,6 +1794,24 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
}
|
||||
}
|
||||
|
||||
// Track last observed PoW bits per participant per geohash
|
||||
private var geoParticipantPowBits: [String: [String: Int]] = [:] // geohash -> (pubkeyLower -> bits)
|
||||
|
||||
private func recordGeoParticipant(pubkeyHex: String, geohash: String, powBits: Int?) {
|
||||
let key = pubkeyHex.lowercased()
|
||||
var map = geoParticipants[geohash] ?? [:]
|
||||
map[key] = Date()
|
||||
geoParticipants[geohash] = map
|
||||
if let bits = powBits {
|
||||
var powMap = geoParticipantPowBits[geohash] ?? [:]
|
||||
powMap[key] = bits
|
||||
geoParticipantPowBits[geohash] = powMap
|
||||
}
|
||||
if currentGeohash == geohash {
|
||||
refreshGeohashPeople()
|
||||
}
|
||||
}
|
||||
|
||||
private func refreshGeohashPeople() {
|
||||
guard let gh = currentGeohash else { geohashPeople = []; return }
|
||||
let cutoff = Date().addingTimeInterval(-TransportConfig.uiRecentCutoffFiveMinutesSeconds)
|
||||
@@ -1731,6 +1820,17 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
map = map.filter { $0.value >= cutoff }
|
||||
// Remove blocked Nostr pubkeys
|
||||
map = map.filter { !SecureIdentityStateManager.shared.isNostrBlocked(pubkeyHexLowercased: $0.key) }
|
||||
// Enforce PoW threshold for peer list as well
|
||||
let required = PowPolicy.requiredBits(forGeohash: gh)
|
||||
let myHex: String? = (try? NostrIdentityBridge.deriveIdentity(forGeohash: gh))?.publicKeyHex.lowercased()
|
||||
let powMap = geoParticipantPowBits[gh] ?? [:]
|
||||
map = map.filter { (pub, _) in
|
||||
if let bits = powMap[pub] { return bits >= required }
|
||||
// Always allow self even if no PoW record yet
|
||||
if let me = myHex, pub == me { return true }
|
||||
// Otherwise, if no PoW info, hide until we see an acceptable event
|
||||
return false
|
||||
}
|
||||
geoParticipants[gh] = map
|
||||
// Build display list
|
||||
let people = map
|
||||
@@ -1761,9 +1861,17 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
func visibleGeohashPeople() -> [GeoPerson] {
|
||||
guard let gh = currentGeohash else { return [] }
|
||||
let cutoff = Date().addingTimeInterval(-TransportConfig.uiRecentCutoffFiveMinutesSeconds)
|
||||
let required = PowPolicy.requiredBits(forGeohash: gh)
|
||||
let myHex: String? = (try? NostrIdentityBridge.deriveIdentity(forGeohash: gh))?.publicKeyHex.lowercased()
|
||||
let powMap = geoParticipantPowBits[gh] ?? [:]
|
||||
let map = (geoParticipants[gh] ?? [:])
|
||||
.filter { $0.value >= cutoff }
|
||||
.filter { !SecureIdentityStateManager.shared.isNostrBlocked(pubkeyHexLowercased: $0.key) }
|
||||
.filter { (pub, _) in
|
||||
if let bits = powMap[pub] { return bits >= required }
|
||||
if let me = myHex, pub == me { return true }
|
||||
return false
|
||||
}
|
||||
let people = map
|
||||
.map { (pub, seen) in GeoPerson(id: pub, displayName: displayNameForNostrPubkey(pub), lastSeen: seen) }
|
||||
.sorted { $0.lastSeen > $1.lastSeen }
|
||||
@@ -1865,6 +1973,12 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
NostrRelayManager.shared.subscribe(filter: filter, id: subID, relayUrls: subRelays) { [weak self] event in
|
||||
guard let self = self else { return }
|
||||
guard event.kind == NostrProtocol.EventKind.ephemeralEvent.rawValue else { return }
|
||||
// Enforce PoW for sampled geohashes too
|
||||
if let idData = Data(hexString: event.id) {
|
||||
let powBits = NostrPoW.leadingZeroBits(idData)
|
||||
let required = PowPolicy.requiredBits(forGeohash: gh)
|
||||
if powBits < required { return }
|
||||
}
|
||||
// Compute current participant count (5-minute window) BEFORE updating with this event
|
||||
let cutoff = Date().addingTimeInterval(-TransportConfig.uiRecentCutoffFiveMinutesSeconds)
|
||||
let existingCount: Int = {
|
||||
@@ -1872,7 +1986,12 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
return map.values.filter { $0 >= cutoff }.count
|
||||
}()
|
||||
// Update participants for this specific geohash
|
||||
if let idData = Data(hexString: event.id) {
|
||||
let powBits = NostrPoW.leadingZeroBits(idData)
|
||||
self.recordGeoParticipant(pubkeyHex: event.pubkey, geohash: gh, powBits: powBits)
|
||||
} else {
|
||||
self.recordGeoParticipant(pubkeyHex: event.pubkey, geohash: gh)
|
||||
}
|
||||
// Notify only on rising-edge: previously zero people, now someone sends a chat
|
||||
let content = event.content.trimmingCharacters(in: .whitespacesAndNewlines)
|
||||
guard !content.isEmpty else { return }
|
||||
@@ -2667,27 +2786,7 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
meshService.sendMessage(screenshotMessage, mentions: [])
|
||||
case .location(let ch):
|
||||
Task { @MainActor in
|
||||
do {
|
||||
let identity = try NostrIdentityBridge.deriveIdentity(forGeohash: ch.geohash)
|
||||
let event = try NostrProtocol.createEphemeralGeohashEvent(
|
||||
content: screenshotMessage,
|
||||
geohash: ch.geohash,
|
||||
senderIdentity: identity,
|
||||
nickname: self.nickname,
|
||||
teleported: LocationChannelManager.shared.teleported
|
||||
)
|
||||
let targetRelays = GeoRelayDirectory.shared.closestRelays(toGeohash: ch.geohash, count: 5)
|
||||
if targetRelays.isEmpty {
|
||||
SecureLogger.log("Geo: no geohash relays available for \(ch.geohash); not sending", category: SecureLogger.session, level: .warning)
|
||||
} else {
|
||||
NostrRelayManager.shared.sendEvent(event, to: targetRelays)
|
||||
}
|
||||
// Track ourselves as active participant
|
||||
self.recordGeoParticipant(pubkeyHex: identity.publicKeyHex)
|
||||
} catch {
|
||||
SecureLogger.log("❌ Failed to send geohash screenshot message: \(error)", category: SecureLogger.session, level: .error)
|
||||
self.addSystemMessage("failed to send to location channel")
|
||||
}
|
||||
await mineAndSendGeohashEvent(content: screenshotMessage, geohash: ch.geohash, nickname: self.nickname, teleported: LocationChannelManager.shared.teleported, createdAt: Date())
|
||||
}
|
||||
}
|
||||
|
||||
@@ -3138,6 +3237,59 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
return processedContent
|
||||
}
|
||||
|
||||
// MARK: - Helpers for mining UI
|
||||
@MainActor
|
||||
func isSelfMessage(_ message: BitchatMessage) -> Bool {
|
||||
let isSelf: Bool = {
|
||||
if let spid = message.senderPeerID {
|
||||
if spid == meshService.myPeerID { return true }
|
||||
if case .location(let ch) = activeChannel,
|
||||
let id = try? NostrIdentityBridge.deriveIdentity(forGeohash: ch.geohash) {
|
||||
if spid.hasPrefix("nostr:") || spid.hasPrefix("nostr_") {
|
||||
let bare: String = spid.hasPrefix("nostr:") ? String(spid.dropFirst(6)) : String(spid.dropFirst(6))
|
||||
return bare.lowercased().hasPrefix(id.publicKeyHex.lowercased().prefix(TransportConfig.nostrShortKeyDisplayLength))
|
||||
}
|
||||
}
|
||||
return spid == meshService.myPeerID
|
||||
}
|
||||
if message.sender == nickname { return true }
|
||||
if message.sender.hasPrefix(nickname + "#") { return true }
|
||||
return false
|
||||
}()
|
||||
return isSelf
|
||||
}
|
||||
|
||||
@MainActor
|
||||
func baseColorForMessage(_ message: BitchatMessage, colorScheme: ColorScheme) -> Color {
|
||||
let isDark = colorScheme == .dark
|
||||
return isSelfMessage(message) ? .orange : peerColor(for: message, isDark: isDark)
|
||||
}
|
||||
|
||||
@MainActor
|
||||
func formatSenderPrefix(_ message: BitchatMessage, colorScheme: ColorScheme) -> AttributedString {
|
||||
let isSelf = isSelfMessage(message)
|
||||
let isDark = colorScheme == .dark
|
||||
let baseColor: Color = isSelf ? .orange : peerColor(for: message, isDark: isDark)
|
||||
let (baseName, suffix) = splitSuffix(from: message.sender)
|
||||
var senderStyle = AttributeContainer()
|
||||
senderStyle.foregroundColor = baseColor
|
||||
let fontWeight: Font.Weight = isSelf ? .bold : .medium
|
||||
senderStyle.font = .system(size: 14, weight: fontWeight, design: .monospaced)
|
||||
if let spid = message.senderPeerID, let url = URL(string: "bitchat://user/\(spid.addingPercentEncoding(withAllowedCharacters: .urlPathAllowed) ?? spid)") {
|
||||
senderStyle.link = url
|
||||
}
|
||||
var prefix = AttributedString()
|
||||
prefix.append(AttributedString("<@").mergingAttributes(senderStyle))
|
||||
prefix.append(AttributedString(baseName).mergingAttributes(senderStyle))
|
||||
if !suffix.isEmpty {
|
||||
var suffixStyle = senderStyle
|
||||
suffixStyle.foregroundColor = baseColor.opacity(0.6)
|
||||
prefix.append(AttributedString(suffix).mergingAttributes(suffixStyle))
|
||||
}
|
||||
prefix.append(AttributedString("> ").mergingAttributes(senderStyle))
|
||||
return prefix
|
||||
}
|
||||
|
||||
@MainActor
|
||||
func formatMessageAsText(_ message: BitchatMessage, colorScheme: ColorScheme) -> AttributedString {
|
||||
// Determine if this message was sent by self (mesh, geo, or DM)
|
||||
@@ -3443,12 +3595,15 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
}
|
||||
}
|
||||
|
||||
// Add timestamp at the end (smaller, light grey)
|
||||
// Add timestamp at the end (hide while PoW mining)
|
||||
let hideTimestamp = (message.isMiningPow ?? false)
|
||||
if !hideTimestamp {
|
||||
let timestamp = AttributedString(" [\(formatTimestamp(message.timestamp))]")
|
||||
var timestampStyle = AttributeContainer()
|
||||
timestampStyle.foregroundColor = Color.gray.opacity(0.7)
|
||||
timestampStyle.font = .system(size: 10, design: .monospaced)
|
||||
result.append(timestamp.mergingAttributes(timestampStyle))
|
||||
}
|
||||
} else {
|
||||
// System message
|
||||
var contentStyle = AttributeContainer()
|
||||
@@ -4883,24 +5038,7 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
func sendPublicRaw(_ content: String) {
|
||||
if case .location(let ch) = activeChannel {
|
||||
Task { @MainActor in
|
||||
do {
|
||||
let identity = try NostrIdentityBridge.deriveIdentity(forGeohash: ch.geohash)
|
||||
let event = try NostrProtocol.createEphemeralGeohashEvent(
|
||||
content: content,
|
||||
geohash: ch.geohash,
|
||||
senderIdentity: identity,
|
||||
nickname: self.nickname,
|
||||
teleported: LocationChannelManager.shared.teleported
|
||||
)
|
||||
let targetRelays = GeoRelayDirectory.shared.closestRelays(toGeohash: ch.geohash, count: 5)
|
||||
if targetRelays.isEmpty {
|
||||
NostrRelayManager.shared.sendEvent(event)
|
||||
} else {
|
||||
NostrRelayManager.shared.sendEvent(event, to: targetRelays)
|
||||
}
|
||||
} catch {
|
||||
SecureLogger.log("❌ Failed to send geohash raw message: \(error)", category: SecureLogger.session, level: .error)
|
||||
}
|
||||
await mineAndSendGeohashEvent(content: content, geohash: ch.geohash, nickname: self.nickname, teleported: LocationChannelManager.shared.teleported, createdAt: Date())
|
||||
}
|
||||
return
|
||||
}
|
||||
@@ -4908,6 +5046,49 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
|
||||
meshService.sendMessage(content, mentions: [])
|
||||
}
|
||||
|
||||
// MARK: - Geohash PoW helper for system/raw messages
|
||||
@MainActor
|
||||
private func mineAndSendGeohashEvent(content: String, geohash: String, nickname: String, teleported: Bool, createdAt: Date) async {
|
||||
do {
|
||||
let identity = try NostrIdentityBridge.deriveIdentity(forGeohash: geohash)
|
||||
let createdAtSecs = Int(createdAt.timeIntervalSince1970)
|
||||
var baseTags = [["g", geohash]]
|
||||
if !nickname.isEmpty { baseTags.append(["n", nickname]) }
|
||||
if teleported { baseTags.append(["t", "teleport"]) }
|
||||
let bits = PowPolicy.requiredBits(forGeohash: geohash)
|
||||
let (nonce, _) = await withCheckedContinuation { (cont: CheckedContinuation<(UInt64, String), Never>) in
|
||||
DispatchQueue.global(qos: .utility).async {
|
||||
let res = NostrPoW.mine(pubkey: identity.publicKeyHex,
|
||||
createdAt: createdAtSecs,
|
||||
kind: NostrProtocol.EventKind.ephemeralEvent.rawValue,
|
||||
baseTags: baseTags,
|
||||
content: content,
|
||||
targetBits: bits)
|
||||
cont.resume(returning: (res.nonce, res.idHex))
|
||||
}
|
||||
}
|
||||
var tags = baseTags
|
||||
tags.append(["nonce", String(nonce), String(bits)])
|
||||
var event = NostrEvent(
|
||||
pubkey: identity.publicKeyHex,
|
||||
createdAt: createdAt,
|
||||
kind: .ephemeralEvent,
|
||||
tags: tags,
|
||||
content: content
|
||||
)
|
||||
let key = try identity.schnorrSigningKey()
|
||||
event = try event.sign(with: key)
|
||||
let relays = GeoRelayDirectory.shared.closestRelays(toGeohash: geohash, count: TransportConfig.nostrGeoRelayCount)
|
||||
if relays.isEmpty {
|
||||
NostrRelayManager.shared.sendEvent(event)
|
||||
} else {
|
||||
NostrRelayManager.shared.sendEvent(event, to: relays)
|
||||
}
|
||||
} catch {
|
||||
SecureLogger.log("❌ GeoPoW: failed to send event: \(error)", category: SecureLogger.session, level: .error)
|
||||
}
|
||||
}
|
||||
|
||||
// MARK: - Simplified Nostr Integration (Inlined from MessageRouter)
|
||||
|
||||
//
|
||||
|
||||
@@ -303,10 +303,21 @@ struct ContentView: View {
|
||||
HStack(alignment: .top, spacing: 0) {
|
||||
let isLong = (message.content.count > TransportConfig.uiLongMessageLengthThreshold || message.content.hasVeryLongToken(threshold: TransportConfig.uiVeryLongTokenThreshold)) && cashuTokens.isEmpty
|
||||
let isExpanded = expandedMessageIDs.contains(message.id)
|
||||
Text(viewModel.formatMessageAsText(message, colorScheme: colorScheme))
|
||||
let formatted = viewModel.formatMessageAsText(message, colorScheme: colorScheme)
|
||||
let prefixAttr = viewModel.formatSenderPrefix(message, colorScheme: colorScheme)
|
||||
let baseColor = viewModel.baseColorForMessage(message, colorScheme: colorScheme)
|
||||
let isSelfMsg = viewModel.isSelfMessage(message)
|
||||
if (message.isMiningPow ?? false) {
|
||||
// Single Text combines prefix + animated body, so wrapping matches final layout
|
||||
CombinedMiningText(prefix: prefixAttr, original: message.content, color: baseColor, isSelf: isSelfMsg)
|
||||
.lineLimit(isLong && !isExpanded ? TransportConfig.uiLongMessageLineLimit : nil)
|
||||
.frame(maxWidth: .infinity, alignment: .leading)
|
||||
} else {
|
||||
Text(formatted)
|
||||
.fixedSize(horizontal: false, vertical: true)
|
||||
.lineLimit(isLong && !isExpanded ? TransportConfig.uiLongMessageLineLimit : nil)
|
||||
.frame(maxWidth: .infinity, alignment: .leading)
|
||||
}
|
||||
|
||||
// Delivery status indicator for private messages
|
||||
if message.isPrivate && message.sender == viewModel.nickname,
|
||||
@@ -1387,6 +1398,53 @@ struct ContentView: View {
|
||||
|
||||
}
|
||||
|
||||
// MARK: - Mining UI helpers (local to ensure inclusion in target)
|
||||
fileprivate struct CombinedMiningText: View {
|
||||
let prefix: AttributedString
|
||||
let original: String
|
||||
let color: Color
|
||||
let isSelf: Bool
|
||||
let fontSize: CGFloat = 14
|
||||
let interval: TimeInterval = 0.06
|
||||
@State private var display: String = ""
|
||||
@State private var timer: Timer? = nil
|
||||
|
||||
private let charset: [Character] = Array("abcdefghijklmnopqrstuvwxyz0123456789@#$%&*+-")
|
||||
|
||||
var body: some View {
|
||||
Text(combinedAttributed)
|
||||
.fixedSize(horizontal: false, vertical: true)
|
||||
.onAppear {
|
||||
display = scramble(original)
|
||||
timer?.invalidate()
|
||||
timer = Timer.scheduledTimer(withTimeInterval: interval, repeats: true) { _ in
|
||||
display = scramble(original)
|
||||
}
|
||||
}
|
||||
.onDisappear { timer?.invalidate(); timer = nil }
|
||||
}
|
||||
|
||||
private var combinedAttributed: AttributedString {
|
||||
var res = AttributedString()
|
||||
res.append(prefix)
|
||||
var style = AttributeContainer()
|
||||
style.foregroundColor = color
|
||||
style.font = .system(size: fontSize, weight: isSelf ? .bold : .regular, design: .monospaced)
|
||||
res.append(AttributedString(display).mergingAttributes(style))
|
||||
return res
|
||||
}
|
||||
|
||||
private func scramble(_ s: String) -> String {
|
||||
var out = String()
|
||||
out.reserveCapacity(s.count)
|
||||
for ch in s {
|
||||
if ch.isWhitespace || ch.isNewline { out.append(ch); continue }
|
||||
out.append(charset.randomElement() ?? ch)
|
||||
}
|
||||
return out
|
||||
}
|
||||
}
|
||||
|
||||
// MARK: - Helper Views
|
||||
|
||||
// Rounded payment chip button
|
||||
|
||||
@@ -0,0 +1,87 @@
|
||||
import SwiftUI
|
||||
|
||||
/// Mining body animation: scramble characters (matrix-like) until PoW completes.
|
||||
struct MiningScrambleText: View {
|
||||
let original: String
|
||||
let color: Color
|
||||
let isSelf: Bool
|
||||
let fontSize: CGFloat = 14
|
||||
let interval: TimeInterval = 0.06
|
||||
@State private var display: String = ""
|
||||
@State private var timer: Timer? = nil
|
||||
|
||||
private let charset: [Character] = Array("abcdefghijklmnopqrstuvwxyz0123456789@#$%&*+-")
|
||||
|
||||
var body: some View {
|
||||
Text(display)
|
||||
.font(.system(size: fontSize, weight: isSelf ? .bold : .regular, design: .monospaced))
|
||||
.foregroundColor(color)
|
||||
.onAppear {
|
||||
display = scramble(original)
|
||||
timer?.invalidate()
|
||||
timer = Timer.scheduledTimer(withTimeInterval: interval, repeats: true) { _ in
|
||||
display = scramble(original)
|
||||
}
|
||||
}
|
||||
.onDisappear {
|
||||
timer?.invalidate(); timer = nil
|
||||
}
|
||||
}
|
||||
|
||||
/// Combined prefix+body single-Text variant to ensure identical wrapping
|
||||
struct MiningCombinedText: View {
|
||||
let prefix: AttributedString
|
||||
let original: String
|
||||
let color: Color
|
||||
let isSelf: Bool
|
||||
let fontSize: CGFloat = 14
|
||||
let interval: TimeInterval = 0.06
|
||||
@State private var display: String = ""
|
||||
@State private var timer: Timer? = nil
|
||||
|
||||
private let charset: [Character] = Array("abcdefghijklmnopqrstuvwxyz0123456789@#$%&*+-")
|
||||
|
||||
var body: some View {
|
||||
Text(combinedAttributed)
|
||||
.fixedSize(horizontal: false, vertical: true)
|
||||
.onAppear {
|
||||
display = scramble(original)
|
||||
timer?.invalidate()
|
||||
timer = Timer.scheduledTimer(withTimeInterval: interval, repeats: true) { _ in
|
||||
display = scramble(original)
|
||||
}
|
||||
}
|
||||
.onDisappear { timer?.invalidate(); timer = nil }
|
||||
}
|
||||
|
||||
private var combinedAttributed: AttributedString {
|
||||
var res = AttributedString()
|
||||
res.append(prefix)
|
||||
var style = AttributeContainer()
|
||||
style.foregroundColor = color
|
||||
style.font = .system(size: fontSize, weight: isSelf ? .bold : .regular, design: .monospaced)
|
||||
res.append(AttributedString(display).mergingAttributes(style))
|
||||
return res
|
||||
}
|
||||
|
||||
private func scramble(_ s: String) -> String {
|
||||
var out = String()
|
||||
out.reserveCapacity(s.count)
|
||||
for ch in s {
|
||||
if ch.isWhitespace || ch.isNewline { out.append(ch); continue }
|
||||
out.append(charset.randomElement() ?? ch)
|
||||
}
|
||||
return out
|
||||
}
|
||||
}
|
||||
|
||||
private func scramble(_ s: String) -> String {
|
||||
var out = String()
|
||||
out.reserveCapacity(s.count)
|
||||
for ch in s {
|
||||
if ch.isWhitespace || ch.isNewline { out.append(ch); continue }
|
||||
out.append(charset.randomElement() ?? ch)
|
||||
}
|
||||
return out
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,32 @@
|
||||
import XCTest
|
||||
import CryptoKit
|
||||
@testable import bitchat
|
||||
|
||||
final class NostrPoWTests: XCTestCase {
|
||||
func testLeadingZeroBits() {
|
||||
// 0x00 -> 8, 0x00 -> 8, 0xF0 -> 0 leading zeros
|
||||
let data = Data([0x00, 0x00, 0xF0]) + Data(repeating: 0x00, count: 29)
|
||||
let lz = NostrPoW.leadingZeroBits(data)
|
||||
XCTAssertEqual(lz, 16)
|
||||
}
|
||||
|
||||
func testMineLowDifficulty() {
|
||||
let pubkey = String(repeating: "a", count: 64)
|
||||
let createdAt = Int(Date().timeIntervalSince1970)
|
||||
let kind = 20000
|
||||
let tags = [["g", "u4pruydqqvj"]]
|
||||
let content = "hello"
|
||||
let targetBits = 8 // keep it very low for test speed
|
||||
let (nonce, idHex) = NostrPoW.mine(pubkey: pubkey, createdAt: createdAt, kind: kind, baseTags: tags, content: content, targetBits: targetBits)
|
||||
XCTAssertGreaterThan(nonce, 0)
|
||||
// Verify difficulty
|
||||
let powTags = tags + [["nonce", String(nonce), String(targetBits)]]
|
||||
// Recompute ID
|
||||
let serialized: [Any] = [0, pubkey, createdAt, kind, powTags, content]
|
||||
let json = try! JSONSerialization.data(withJSONObject: serialized, options: [.withoutEscapingSlashes])
|
||||
let digest = CryptoKit.SHA256.hash(data: json)
|
||||
let idData = Data(digest)
|
||||
XCTAssertEqual(idHex.count, 64)
|
||||
XCTAssertGreaterThanOrEqual(NostrPoW.leadingZeroBits(idData), targetBits)
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user