mirror of
https://github.com/permissionlesstech/bitchat-android.git
synced 2026-07-24 22:45:20 +00:00
1079 lines
45 KiB
Kotlin
1079 lines
45 KiB
Kotlin
package com.bitchat.android.mesh
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import android.content.Context
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import android.util.Log
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import com.bitchat.android.crypto.EncryptionService
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import com.bitchat.android.model.BitchatMessage
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import com.bitchat.android.protocol.MessagePadding
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import com.bitchat.android.model.RoutedPacket
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import com.bitchat.android.model.IdentityAnnouncement
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import com.bitchat.android.protocol.BitchatPacket
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import com.bitchat.android.protocol.MessageType
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import com.bitchat.android.protocol.SpecialRecipients
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import com.bitchat.android.model.RequestSyncPacket
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import com.bitchat.android.sync.GossipSyncManager
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import com.bitchat.android.util.toHexString
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import kotlinx.coroutines.*
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import java.util.*
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import kotlin.math.sign
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import kotlin.random.Random
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/**
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* Bluetooth mesh service - REFACTORED to use component-based architecture
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* 100% compatible with iOS version and maintains exact same UUIDs, packet format, and protocol logic
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*
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* This is now a coordinator that orchestrates the following components:
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* - PeerManager: Peer lifecycle management
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* - FragmentManager: Message fragmentation and reassembly
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* - SecurityManager: Security, duplicate detection, encryption
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* - StoreForwardManager: Offline message caching
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* - MessageHandler: Message type processing and relay logic
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* - BluetoothConnectionManager: BLE connections and GATT operations
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* - PacketProcessor: Incoming packet routing
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*/
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class BluetoothMeshService(private val context: Context) {
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private val debugManager by lazy { try { com.bitchat.android.ui.debug.DebugSettingsManager.getInstance() } catch (e: Exception) { null } }
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companion object {
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private const val TAG = "BluetoothMeshService"
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private const val MAX_TTL: UByte = 7u
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}
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// Core components - each handling specific responsibilities
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private val encryptionService = EncryptionService(context)
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// My peer identification - derived from persisted Noise identity fingerprint (first 16 hex chars)
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val myPeerID: String = encryptionService.getIdentityFingerprint().take(16)
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private val peerManager = PeerManager()
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private val fragmentManager = FragmentManager()
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private val securityManager = SecurityManager(encryptionService, myPeerID)
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private val storeForwardManager = StoreForwardManager()
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private val messageHandler = MessageHandler(myPeerID)
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internal val connectionManager = BluetoothConnectionManager(context, myPeerID, fragmentManager) // Made internal for access
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private val packetProcessor = PacketProcessor(myPeerID)
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private lateinit var gossipSyncManager: GossipSyncManager
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// Service state management
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private var isActive = false
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// Delegate for message callbacks (maintains same interface)
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var delegate: BluetoothMeshDelegate? = null
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// Coroutines
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private val serviceScope = CoroutineScope(Dispatchers.IO + SupervisorJob())
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init {
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setupDelegates()
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messageHandler.packetProcessor = packetProcessor
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//startPeriodicDebugLogging()
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// Initialize sync manager (needs serviceScope)
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gossipSyncManager = GossipSyncManager(
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myPeerID = myPeerID,
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scope = serviceScope,
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configProvider = object : GossipSyncManager.ConfigProvider {
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override fun seenCapacity(): Int = try {
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com.bitchat.android.ui.debug.DebugPreferenceManager.getSeenPacketCapacity(500)
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} catch (_: Exception) { 500 }
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override fun gcsMaxBytes(): Int = try {
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com.bitchat.android.ui.debug.DebugPreferenceManager.getGcsMaxFilterBytes(400)
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} catch (_: Exception) { 400 }
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override fun gcsTargetFpr(): Double = try {
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com.bitchat.android.ui.debug.DebugPreferenceManager.getGcsFprPercent(1.0) / 100.0
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} catch (_: Exception) { 0.01 }
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}
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)
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// Wire sync manager delegate
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gossipSyncManager.delegate = object : GossipSyncManager.Delegate {
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override fun sendPacket(packet: BitchatPacket) {
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connectionManager.broadcastPacket(RoutedPacket(packet))
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}
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override fun sendPacketToPeer(peerID: String, packet: BitchatPacket) {
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connectionManager.sendPacketToPeer(peerID, packet)
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}
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override fun signPacketForBroadcast(packet: BitchatPacket): BitchatPacket {
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return signPacketBeforeBroadcast(packet)
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}
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}
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}
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/**
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* Start periodic debug logging every 10 seconds
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*/
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private fun startPeriodicDebugLogging() {
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serviceScope.launch {
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while (isActive) {
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try {
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delay(10000) // 10 seconds
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if (isActive) { // Double-check before logging
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val debugInfo = getDebugStatus()
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Log.d(TAG, "=== PERIODIC DEBUG STATUS ===\n$debugInfo\n=== END DEBUG STATUS ===")
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}
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} catch (e: Exception) {
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Log.e(TAG, "Error in periodic debug logging: ${e.message}")
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}
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}
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}
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}
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/**
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* Send broadcast announcement every 30 seconds
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*/
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private fun sendPeriodicBroadcastAnnounce() {
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serviceScope.launch {
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while (isActive) {
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try {
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delay(30000) // 30 seconds
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sendBroadcastAnnounce()
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} catch (e: Exception) {
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Log.e(TAG, "Error in periodic broadcast announce: ${e.message}")
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}
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}
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}
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}
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/**
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* Setup delegate connections between components
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*/
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private fun setupDelegates() {
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// Provide nickname resolver to BLE broadcaster for detailed logs
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try {
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connectionManager.setNicknameResolver { pid -> peerManager.getPeerNickname(pid) }
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} catch (_: Exception) { }
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// PeerManager delegates to main mesh service delegate
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peerManager.delegate = object : PeerManagerDelegate {
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override fun onPeerListUpdated(peerIDs: List<String>) {
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delegate?.didUpdatePeerList(peerIDs)
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}
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override fun onPeerRemoved(peerID: String) {
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try { gossipSyncManager.removeAnnouncementForPeer(peerID) } catch (_: Exception) { }
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// Also drop any Noise session state for this peer when they go offline
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try {
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encryptionService.removePeer(peerID)
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Log.d(TAG, "Removed Noise session for offline peer $peerID")
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} catch (e: Exception) {
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Log.w(TAG, "Failed to remove Noise session for $peerID: ${e.message}")
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}
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}
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}
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// SecurityManager delegate for key exchange notifications
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securityManager.delegate = object : SecurityManagerDelegate {
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override fun onKeyExchangeCompleted(peerID: String, peerPublicKeyData: ByteArray) {
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// Send announcement and cached messages after key exchange
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serviceScope.launch {
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delay(100)
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sendAnnouncementToPeer(peerID)
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delay(1000)
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storeForwardManager.sendCachedMessages(peerID)
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}
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}
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override fun sendHandshakeResponse(peerID: String, response: ByteArray) {
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// Send Noise handshake response
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val responsePacket = BitchatPacket(
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version = 1u,
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type = MessageType.NOISE_HANDSHAKE.value,
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senderID = hexStringToByteArray(myPeerID),
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recipientID = hexStringToByteArray(peerID),
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timestamp = System.currentTimeMillis().toULong(),
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payload = response,
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ttl = MAX_TTL
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)
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// Sign the handshake response
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val signedPacket = signPacketBeforeBroadcast(responsePacket)
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connectionManager.broadcastPacket(RoutedPacket(signedPacket))
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Log.d(TAG, "Sent Noise handshake response to $peerID (${response.size} bytes)")
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}
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override fun getPeerInfo(peerID: String): PeerInfo? {
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return peerManager.getPeerInfo(peerID)
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}
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}
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// StoreForwardManager delegates
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storeForwardManager.delegate = object : StoreForwardManagerDelegate {
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override fun isFavorite(peerID: String): Boolean {
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return delegate?.isFavorite(peerID) ?: false
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}
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override fun isPeerOnline(peerID: String): Boolean {
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return peerManager.isPeerActive(peerID)
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}
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override fun sendPacket(packet: BitchatPacket) {
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connectionManager.broadcastPacket(RoutedPacket(packet))
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}
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}
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// MessageHandler delegates
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messageHandler.delegate = object : MessageHandlerDelegate {
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// Peer management
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override fun addOrUpdatePeer(peerID: String, nickname: String): Boolean {
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return peerManager.addOrUpdatePeer(peerID, nickname)
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}
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override fun removePeer(peerID: String) {
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peerManager.removePeer(peerID)
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}
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override fun updatePeerNickname(peerID: String, nickname: String) {
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peerManager.addOrUpdatePeer(peerID, nickname)
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}
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override fun getPeerNickname(peerID: String): String? {
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return peerManager.getPeerNickname(peerID)
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}
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override fun getNetworkSize(): Int {
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return peerManager.getActivePeerCount()
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}
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override fun getMyNickname(): String? {
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return delegate?.getNickname()
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}
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override fun getPeerInfo(peerID: String): PeerInfo? {
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return peerManager.getPeerInfo(peerID)
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}
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override fun updatePeerInfo(peerID: String, nickname: String, noisePublicKey: ByteArray, signingPublicKey: ByteArray, isVerified: Boolean): Boolean {
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return peerManager.updatePeerInfo(peerID, nickname, noisePublicKey, signingPublicKey, isVerified)
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}
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// Packet operations
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override fun sendPacket(packet: BitchatPacket) {
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// Sign the packet before broadcasting
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val signedPacket = signPacketBeforeBroadcast(packet)
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connectionManager.broadcastPacket(RoutedPacket(signedPacket))
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}
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override fun relayPacket(routed: RoutedPacket) {
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connectionManager.broadcastPacket(routed)
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}
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override fun getBroadcastRecipient(): ByteArray {
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return SpecialRecipients.BROADCAST
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}
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// Cryptographic operations
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override fun verifySignature(packet: BitchatPacket, peerID: String): Boolean {
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return securityManager.verifySignature(packet, peerID)
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}
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override fun encryptForPeer(data: ByteArray, recipientPeerID: String): ByteArray? {
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return securityManager.encryptForPeer(data, recipientPeerID)
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}
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override fun decryptFromPeer(encryptedData: ByteArray, senderPeerID: String): ByteArray? {
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return securityManager.decryptFromPeer(encryptedData, senderPeerID)
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}
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override fun verifyEd25519Signature(signature: ByteArray, data: ByteArray, publicKey: ByteArray): Boolean {
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return encryptionService.verifyEd25519Signature(signature, data, publicKey)
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}
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// Noise protocol operations
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override fun hasNoiseSession(peerID: String): Boolean {
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return encryptionService.hasEstablishedSession(peerID)
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}
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override fun initiateNoiseHandshake(peerID: String) {
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try {
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// Initiate proper Noise handshake with specific peer
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val handshakeData = encryptionService.initiateHandshake(peerID)
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if (handshakeData != null) {
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val packet = BitchatPacket(
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version = 1u,
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type = MessageType.NOISE_HANDSHAKE.value,
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senderID = hexStringToByteArray(myPeerID),
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recipientID = hexStringToByteArray(peerID),
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timestamp = System.currentTimeMillis().toULong(),
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payload = handshakeData,
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ttl = MAX_TTL
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)
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// Sign the handshake packet before broadcasting
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val signedPacket = signPacketBeforeBroadcast(packet)
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connectionManager.broadcastPacket(RoutedPacket(signedPacket))
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Log.d(TAG, "Initiated Noise handshake with $peerID (${handshakeData.size} bytes)")
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} else {
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Log.w(TAG, "Failed to generate Noise handshake data for $peerID")
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}
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} catch (e: Exception) {
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Log.e(TAG, "Failed to initiate Noise handshake with $peerID: ${e.message}")
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}
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}
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override fun processNoiseHandshakeMessage(payload: ByteArray, peerID: String): ByteArray? {
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return try {
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encryptionService.processHandshakeMessage(payload, peerID)
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} catch (e: Exception) {
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Log.e(TAG, "Failed to process handshake message from $peerID: ${e.message}")
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null
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}
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}
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override fun updatePeerIDBinding(newPeerID: String, nickname: String,
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publicKey: ByteArray, previousPeerID: String?) {
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Log.d(TAG, "Updating peer ID binding: $newPeerID (was: $previousPeerID) with nickname: $nickname and public key: ${publicKey.toHexString().take(16)}...")
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// Update peer mapping in the PeerManager for peer ID rotation support
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peerManager.addOrUpdatePeer(newPeerID, nickname)
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// Store fingerprint for the peer via centralized fingerprint manager
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val fingerprint = peerManager.storeFingerprintForPeer(newPeerID, publicKey)
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// Index existing Nostr mapping by the new peerID if we have it
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try {
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com.bitchat.android.favorites.FavoritesPersistenceService.shared.findNostrPubkey(publicKey)?.let { npub ->
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com.bitchat.android.favorites.FavoritesPersistenceService.shared.updateNostrPublicKeyForPeerID(newPeerID, npub)
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}
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} catch (_: Exception) { }
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// If there was a previous peer ID, remove it to avoid duplicates
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previousPeerID?.let { oldPeerID ->
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peerManager.removePeer(oldPeerID)
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}
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Log.d(TAG, "Updated peer ID binding: $newPeerID (was: $previousPeerID), fingerprint: ${fingerprint.take(16)}...")
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}
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// Message operations
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override fun decryptChannelMessage(encryptedContent: ByteArray, channel: String): String? {
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return delegate?.decryptChannelMessage(encryptedContent, channel)
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}
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// Callbacks
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override fun onMessageReceived(message: BitchatMessage) {
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delegate?.didReceiveMessage(message)
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}
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override fun onChannelLeave(channel: String, fromPeer: String) {
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delegate?.didReceiveChannelLeave(channel, fromPeer)
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}
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override fun onDeliveryAckReceived(messageID: String, peerID: String) {
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delegate?.didReceiveDeliveryAck(messageID, peerID)
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}
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override fun onReadReceiptReceived(messageID: String, peerID: String) {
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delegate?.didReceiveReadReceipt(messageID, peerID)
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}
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}
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// PacketProcessor delegates
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packetProcessor.delegate = object : PacketProcessorDelegate {
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override fun validatePacketSecurity(packet: BitchatPacket, peerID: String): Boolean {
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return securityManager.validatePacket(packet, peerID)
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}
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override fun updatePeerLastSeen(peerID: String) {
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peerManager.updatePeerLastSeen(peerID)
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}
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override fun getPeerNickname(peerID: String): String? {
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return peerManager.getPeerNickname(peerID)
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}
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// Network information for relay manager
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override fun getNetworkSize(): Int {
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return peerManager.getActivePeerCount()
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}
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override fun getBroadcastRecipient(): ByteArray {
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return SpecialRecipients.BROADCAST
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}
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override fun handleNoiseHandshake(routed: RoutedPacket): Boolean {
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return runBlocking { securityManager.handleNoiseHandshake(routed) }
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}
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override fun handleNoiseEncrypted(routed: RoutedPacket) {
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serviceScope.launch { messageHandler.handleNoiseEncrypted(routed) }
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}
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override fun handleAnnounce(routed: RoutedPacket) {
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serviceScope.launch {
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// Process the announce
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val isFirst = messageHandler.handleAnnounce(routed)
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// Map device address -> peerID on first announce seen over this device connection
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val deviceAddress = routed.relayAddress
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val pid = routed.peerID
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if (deviceAddress != null && pid != null) {
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// Only set mapping if not already mapped
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if (!connectionManager.addressPeerMap.containsKey(deviceAddress)) {
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connectionManager.addressPeerMap[deviceAddress] = pid
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Log.d(TAG, "Mapped device $deviceAddress to peer $pid on ANNOUNCE")
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// Mark this peer as directly connected for UI
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try {
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peerManager.getPeerInfo(pid)?.let {
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// Set direct connection flag
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// (This will also trigger a peer list update)
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peerManager.setDirectConnection(pid, true)
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// Also push reactive directness state to UI (best-effort)
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try {
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// Note: UI observes via didUpdatePeerList, but we can also update ChatState on a timer
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} catch (_: Exception) { }
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}
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} catch (_: Exception) { }
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// Schedule initial sync for this new directly connected peer only
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try { gossipSyncManager.scheduleInitialSyncToPeer(pid, 1_000) } catch (_: Exception) { }
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}
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}
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// Track for sync
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try { gossipSyncManager.onPublicPacketSeen(routed.packet) } catch (_: Exception) { }
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}
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}
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override fun handleMessage(routed: RoutedPacket) {
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serviceScope.launch { messageHandler.handleMessage(routed) }
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// Track broadcast messages for sync
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try {
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val pkt = routed.packet
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val isBroadcast = (pkt.recipientID == null || pkt.recipientID.contentEquals(SpecialRecipients.BROADCAST))
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if (isBroadcast && pkt.type == MessageType.MESSAGE.value) {
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gossipSyncManager.onPublicPacketSeen(pkt)
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}
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} catch (_: Exception) { }
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}
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override fun handleLeave(routed: RoutedPacket) {
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serviceScope.launch { messageHandler.handleLeave(routed) }
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}
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override fun handleFragment(packet: BitchatPacket): BitchatPacket? {
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return fragmentManager.handleFragment(packet)
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}
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override fun sendAnnouncementToPeer(peerID: String) {
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this@BluetoothMeshService.sendAnnouncementToPeer(peerID)
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}
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override fun sendCachedMessages(peerID: String) {
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storeForwardManager.sendCachedMessages(peerID)
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}
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override fun relayPacket(routed: RoutedPacket) {
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connectionManager.broadcastPacket(routed)
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}
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override fun handleRequestSync(routed: RoutedPacket) {
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// Decode request and respond with missing packets
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val fromPeer = routed.peerID ?: return
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val req = RequestSyncPacket.decode(routed.packet.payload) ?: return
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gossipSyncManager.handleRequestSync(fromPeer, req)
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}
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}
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// BluetoothConnectionManager delegates
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connectionManager.delegate = object : BluetoothConnectionManagerDelegate {
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override fun onPacketReceived(packet: BitchatPacket, peerID: String, device: android.bluetooth.BluetoothDevice?) {
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packetProcessor.processPacket(RoutedPacket(packet, peerID, device?.address))
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}
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override fun onDeviceConnected(device: android.bluetooth.BluetoothDevice) {
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// Send initial announcements after services are ready
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serviceScope.launch {
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delay(200)
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sendBroadcastAnnounce()
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}
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// Verbose debug: device connected
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try {
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val addr = device.address
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val peer = connectionManager.addressPeerMap[addr]
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val nick = peer?.let { peerManager.getPeerNickname(it) } ?: "unknown"
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com.bitchat.android.ui.debug.DebugSettingsManager.getInstance()
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.logPeerConnection(peer ?: "unknown", nick, addr, isInbound = !connectionManager.isClientConnection(addr)!!)
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} catch (_: Exception) { }
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}
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override fun onDeviceDisconnected(device: android.bluetooth.BluetoothDevice) {
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val addr = device.address
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// Remove mapping and, if that was the last direct path for the peer, clear direct flag
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val peer = connectionManager.addressPeerMap[addr]
|
|
// ConnectionTracker has already removed the address mapping; be defensive either way
|
|
connectionManager.addressPeerMap.remove(addr)
|
|
if (peer != null) {
|
|
val stillMapped = connectionManager.addressPeerMap.values.any { it == peer }
|
|
if (!stillMapped) {
|
|
// Peer might still be reachable indirectly; mark as not-direct
|
|
try { peerManager.setDirectConnection(peer, false) } catch (_: Exception) { }
|
|
}
|
|
// Verbose debug: device disconnected
|
|
try {
|
|
val nick = peerManager.getPeerNickname(peer) ?: "unknown"
|
|
com.bitchat.android.ui.debug.DebugSettingsManager.getInstance()
|
|
.logPeerDisconnection(peer, nick, addr)
|
|
} catch (_: Exception) { }
|
|
}
|
|
}
|
|
|
|
override fun onRSSIUpdated(deviceAddress: String, rssi: Int) {
|
|
// Find the peer ID for this device address and update RSSI in PeerManager
|
|
connectionManager.addressPeerMap[deviceAddress]?.let { peerID ->
|
|
peerManager.updatePeerRSSI(peerID, rssi)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Start the mesh service
|
|
*/
|
|
fun startServices() {
|
|
// Prevent double starts (defensive programming)
|
|
if (isActive) {
|
|
Log.w(TAG, "Mesh service already active, ignoring duplicate start request")
|
|
return
|
|
}
|
|
|
|
Log.i(TAG, "Starting Bluetooth mesh service with peer ID: $myPeerID")
|
|
|
|
if (connectionManager.startServices()) {
|
|
isActive = true
|
|
|
|
// Start periodic announcements for peer discovery and connectivity
|
|
sendPeriodicBroadcastAnnounce()
|
|
Log.d(TAG, "Started periodic broadcast announcements (every 30 seconds)")
|
|
// Start periodic syncs
|
|
gossipSyncManager.start()
|
|
} else {
|
|
Log.e(TAG, "Failed to start Bluetooth services")
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Stop all mesh services
|
|
*/
|
|
fun stopServices() {
|
|
if (!isActive) {
|
|
Log.w(TAG, "Mesh service not active, ignoring stop request")
|
|
return
|
|
}
|
|
|
|
Log.i(TAG, "Stopping Bluetooth mesh service")
|
|
isActive = false
|
|
|
|
// Send leave announcement
|
|
sendLeaveAnnouncement()
|
|
|
|
serviceScope.launch {
|
|
delay(200) // Give leave message time to send
|
|
|
|
// Stop all components
|
|
gossipSyncManager.stop()
|
|
connectionManager.stopServices()
|
|
peerManager.shutdown()
|
|
fragmentManager.shutdown()
|
|
securityManager.shutdown()
|
|
storeForwardManager.shutdown()
|
|
messageHandler.shutdown()
|
|
packetProcessor.shutdown()
|
|
|
|
serviceScope.cancel()
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send public message
|
|
*/
|
|
fun sendMessage(content: String, mentions: List<String> = emptyList(), channel: String? = null) {
|
|
if (content.isEmpty()) return
|
|
|
|
serviceScope.launch {
|
|
val packet = BitchatPacket(
|
|
version = 1u,
|
|
type = MessageType.MESSAGE.value,
|
|
senderID = hexStringToByteArray(myPeerID),
|
|
recipientID = SpecialRecipients.BROADCAST,
|
|
timestamp = System.currentTimeMillis().toULong(),
|
|
payload = content.toByteArray(Charsets.UTF_8),
|
|
signature = null,
|
|
ttl = MAX_TTL
|
|
)
|
|
|
|
// Sign the packet before broadcasting
|
|
val signedPacket = signPacketBeforeBroadcast(packet)
|
|
connectionManager.broadcastPacket(RoutedPacket(signedPacket))
|
|
// Track our own broadcast message for sync
|
|
try { gossipSyncManager.onPublicPacketSeen(signedPacket) } catch (_: Exception) { }
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send private message - SIMPLIFIED iOS-compatible version
|
|
* Uses NoisePayloadType system exactly like iOS SimplifiedBluetoothService
|
|
*/
|
|
fun sendPrivateMessage(content: String, recipientPeerID: String, recipientNickname: String, messageID: String? = null) {
|
|
if (content.isEmpty() || recipientPeerID.isEmpty()) return
|
|
if (recipientNickname.isEmpty()) return
|
|
|
|
serviceScope.launch {
|
|
val finalMessageID = messageID ?: java.util.UUID.randomUUID().toString()
|
|
|
|
Log.d(TAG, "📨 Sending PM to $recipientPeerID: ${content.take(30)}...")
|
|
|
|
// Check if we have an established Noise session
|
|
if (encryptionService.hasEstablishedSession(recipientPeerID)) {
|
|
try {
|
|
// Create TLV-encoded private message exactly like iOS
|
|
val privateMessage = com.bitchat.android.model.PrivateMessagePacket(
|
|
messageID = finalMessageID,
|
|
content = content
|
|
)
|
|
|
|
val tlvData = privateMessage.encode()
|
|
if (tlvData == null) {
|
|
Log.e(TAG, "Failed to encode private message with TLV")
|
|
return@launch
|
|
}
|
|
|
|
// Create message payload with NoisePayloadType prefix: [type byte] + [TLV data]
|
|
val messagePayload = com.bitchat.android.model.NoisePayload(
|
|
type = com.bitchat.android.model.NoisePayloadType.PRIVATE_MESSAGE,
|
|
data = tlvData
|
|
)
|
|
|
|
// Encrypt the payload
|
|
val encrypted = encryptionService.encrypt(messagePayload.encode(), recipientPeerID)
|
|
|
|
// Create NOISE_ENCRYPTED packet exactly like iOS
|
|
val packet = BitchatPacket(
|
|
version = 1u,
|
|
type = MessageType.NOISE_ENCRYPTED.value,
|
|
senderID = hexStringToByteArray(myPeerID),
|
|
recipientID = hexStringToByteArray(recipientPeerID),
|
|
timestamp = System.currentTimeMillis().toULong(),
|
|
payload = encrypted,
|
|
signature = null,
|
|
ttl = MAX_TTL
|
|
)
|
|
|
|
// Sign the packet before broadcasting
|
|
val signedPacket = signPacketBeforeBroadcast(packet)
|
|
connectionManager.broadcastPacket(RoutedPacket(signedPacket))
|
|
Log.d(TAG, "📤 Sent encrypted private message to $recipientPeerID (${encrypted.size} bytes)")
|
|
|
|
// FIXED: Don't send didReceiveMessage for our own sent messages
|
|
// This was causing self-notifications - iOS doesn't do this
|
|
// The UI handles showing sent messages through its own message sending logic
|
|
|
|
} catch (e: Exception) {
|
|
Log.e(TAG, "Failed to encrypt private message for $recipientPeerID: ${e.message}")
|
|
}
|
|
} else {
|
|
// Fire and forget - initiate handshake but don't queue exactly like iOS
|
|
Log.d(TAG, "🤝 No session with $recipientPeerID, initiating handshake")
|
|
messageHandler.delegate?.initiateNoiseHandshake(recipientPeerID)
|
|
|
|
// FIXED: Don't send didReceiveMessage for our own sent messages
|
|
// The UI will handle showing the message in the chat interface
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send read receipt for a received private message - NEW NoisePayloadType implementation
|
|
* Uses same encryption approach as iOS SimplifiedBluetoothService
|
|
*/
|
|
fun sendReadReceipt(messageID: String, recipientPeerID: String, readerNickname: String) {
|
|
serviceScope.launch {
|
|
Log.d(TAG, "📖 Sending read receipt for message $messageID to $recipientPeerID")
|
|
|
|
// Route geohash read receipts via MessageRouter instead of here
|
|
val geo = runCatching { com.bitchat.android.services.MessageRouter.tryGetInstance() }.getOrNull()
|
|
val isGeoAlias = try {
|
|
val map = com.bitchat.android.nostr.GeohashAliasRegistry.snapshot()
|
|
map.containsKey(recipientPeerID)
|
|
} catch (_: Exception) { false }
|
|
if (isGeoAlias && geo != null) {
|
|
geo.sendReadReceipt(com.bitchat.android.model.ReadReceipt(messageID), recipientPeerID)
|
|
return@launch
|
|
}
|
|
|
|
try {
|
|
// Create read receipt payload using NoisePayloadType exactly like iOS
|
|
val readReceiptPayload = com.bitchat.android.model.NoisePayload(
|
|
type = com.bitchat.android.model.NoisePayloadType.READ_RECEIPT,
|
|
data = messageID.toByteArray(Charsets.UTF_8)
|
|
)
|
|
|
|
// Encrypt the payload
|
|
val encrypted = encryptionService.encrypt(readReceiptPayload.encode(), recipientPeerID)
|
|
|
|
// Create NOISE_ENCRYPTED packet exactly like iOS
|
|
val packet = BitchatPacket(
|
|
version = 1u,
|
|
type = MessageType.NOISE_ENCRYPTED.value,
|
|
senderID = hexStringToByteArray(myPeerID),
|
|
recipientID = hexStringToByteArray(recipientPeerID),
|
|
timestamp = System.currentTimeMillis().toULong(),
|
|
payload = encrypted,
|
|
signature = null,
|
|
ttl = 7u // Same TTL as iOS messageTTL
|
|
)
|
|
|
|
// Sign the packet before broadcasting
|
|
val signedPacket = signPacketBeforeBroadcast(packet)
|
|
connectionManager.broadcastPacket(RoutedPacket(signedPacket))
|
|
Log.d(TAG, "📤 Sent read receipt to $recipientPeerID for message $messageID")
|
|
|
|
} catch (e: Exception) {
|
|
Log.e(TAG, "Failed to send read receipt to $recipientPeerID: ${e.message}")
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send broadcast announce with TLV-encoded identity announcement - exactly like iOS
|
|
*/
|
|
fun sendBroadcastAnnounce() {
|
|
Log.d(TAG, "Sending broadcast announce")
|
|
serviceScope.launch {
|
|
val nickname = delegate?.getNickname() ?: myPeerID
|
|
|
|
// Get the static public key for the announcement
|
|
val staticKey = encryptionService.getStaticPublicKey()
|
|
if (staticKey == null) {
|
|
Log.e(TAG, "No static public key available for announcement")
|
|
return@launch
|
|
}
|
|
|
|
// Get the signing public key for the announcement
|
|
val signingKey = encryptionService.getSigningPublicKey()
|
|
if (signingKey == null) {
|
|
Log.e(TAG, "No signing public key available for announcement")
|
|
return@launch
|
|
}
|
|
|
|
// Create iOS-compatible IdentityAnnouncement with TLV encoding
|
|
val announcement = IdentityAnnouncement(nickname, staticKey, signingKey)
|
|
val tlvPayload = announcement.encode()
|
|
if (tlvPayload == null) {
|
|
Log.e(TAG, "Failed to encode announcement as TLV")
|
|
return@launch
|
|
}
|
|
|
|
val announcePacket = BitchatPacket(
|
|
type = MessageType.ANNOUNCE.value,
|
|
ttl = MAX_TTL,
|
|
senderID = myPeerID,
|
|
payload = tlvPayload
|
|
)
|
|
|
|
// Sign the packet using our signing key (exactly like iOS)
|
|
val signedPacket = encryptionService.signData(announcePacket.toBinaryDataForSigning()!!)?.let { signature ->
|
|
announcePacket.copy(signature = signature)
|
|
} ?: announcePacket
|
|
|
|
connectionManager.broadcastPacket(RoutedPacket(signedPacket))
|
|
Log.d(TAG, "Sent iOS-compatible signed TLV announce (${tlvPayload.size} bytes)")
|
|
// Track announce for sync
|
|
try { gossipSyncManager.onPublicPacketSeen(signedPacket) } catch (_: Exception) { }
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send announcement to specific peer with TLV-encoded identity announcement - exactly like iOS
|
|
*/
|
|
fun sendAnnouncementToPeer(peerID: String) {
|
|
if (peerManager.hasAnnouncedToPeer(peerID)) return
|
|
|
|
val nickname = delegate?.getNickname() ?: myPeerID
|
|
|
|
// Get the static public key for the announcement
|
|
val staticKey = encryptionService.getStaticPublicKey()
|
|
if (staticKey == null) {
|
|
Log.e(TAG, "No static public key available for peer announcement")
|
|
return
|
|
}
|
|
|
|
// Get the signing public key for the announcement
|
|
val signingKey = encryptionService.getSigningPublicKey()
|
|
if (signingKey == null) {
|
|
Log.e(TAG, "No signing public key available for peer announcement")
|
|
return
|
|
}
|
|
|
|
// Create iOS-compatible IdentityAnnouncement with TLV encoding
|
|
val announcement = IdentityAnnouncement(nickname, staticKey, signingKey)
|
|
val tlvPayload = announcement.encode()
|
|
if (tlvPayload == null) {
|
|
Log.e(TAG, "Failed to encode peer announcement as TLV")
|
|
return
|
|
}
|
|
|
|
val packet = BitchatPacket(
|
|
type = MessageType.ANNOUNCE.value,
|
|
ttl = MAX_TTL,
|
|
senderID = myPeerID,
|
|
payload = tlvPayload
|
|
)
|
|
|
|
// Sign the packet using our signing key (exactly like iOS)
|
|
val signedPacket = encryptionService.signData(packet.toBinaryDataForSigning()!!)?.let { signature ->
|
|
packet.copy(signature = signature)
|
|
} ?: packet
|
|
|
|
connectionManager.broadcastPacket(RoutedPacket(signedPacket))
|
|
peerManager.markPeerAsAnnouncedTo(peerID)
|
|
Log.d(TAG, "Sent iOS-compatible signed TLV peer announce to $peerID (${tlvPayload.size} bytes)")
|
|
|
|
// Track announce for sync
|
|
try { gossipSyncManager.onPublicPacketSeen(signedPacket) } catch (_: Exception) { }
|
|
}
|
|
|
|
/**
|
|
* Send leave announcement
|
|
*/
|
|
private fun sendLeaveAnnouncement() {
|
|
val nickname = delegate?.getNickname() ?: myPeerID
|
|
val packet = BitchatPacket(
|
|
type = MessageType.LEAVE.value,
|
|
ttl = MAX_TTL,
|
|
senderID = myPeerID,
|
|
payload = nickname.toByteArray()
|
|
)
|
|
|
|
// Sign the packet before broadcasting
|
|
val signedPacket = signPacketBeforeBroadcast(packet)
|
|
connectionManager.broadcastPacket(RoutedPacket(signedPacket))
|
|
}
|
|
|
|
/**
|
|
* Get peer nicknames
|
|
*/
|
|
fun getPeerNicknames(): Map<String, String> = peerManager.getAllPeerNicknames()
|
|
|
|
/**
|
|
* Get peer RSSI values
|
|
*/
|
|
fun getPeerRSSI(): Map<String, Int> = peerManager.getAllPeerRSSI()
|
|
|
|
/**
|
|
* Check if we have an established Noise session with a peer
|
|
*/
|
|
fun hasEstablishedSession(peerID: String): Boolean {
|
|
return encryptionService.hasEstablishedSession(peerID)
|
|
}
|
|
|
|
/**
|
|
* Get session state for a peer (for UI state display)
|
|
*/
|
|
fun getSessionState(peerID: String): com.bitchat.android.noise.NoiseSession.NoiseSessionState {
|
|
return encryptionService.getSessionState(peerID)
|
|
}
|
|
|
|
/**
|
|
* Initiate Noise handshake with a specific peer (public API)
|
|
*/
|
|
fun initiateNoiseHandshake(peerID: String) {
|
|
// Delegate to the existing implementation in the MessageHandler delegate
|
|
messageHandler.delegate?.initiateNoiseHandshake(peerID)
|
|
}
|
|
|
|
/**
|
|
* Get peer fingerprint for identity management
|
|
*/
|
|
fun getPeerFingerprint(peerID: String): String? {
|
|
return peerManager.getFingerprintForPeer(peerID)
|
|
}
|
|
|
|
/**
|
|
* Get peer info for verification purposes
|
|
*/
|
|
fun getPeerInfo(peerID: String): PeerInfo? {
|
|
return peerManager.getPeerInfo(peerID)
|
|
}
|
|
|
|
/**
|
|
* Update peer information with verification data
|
|
*/
|
|
fun updatePeerInfo(
|
|
peerID: String,
|
|
nickname: String,
|
|
noisePublicKey: ByteArray,
|
|
signingPublicKey: ByteArray,
|
|
isVerified: Boolean
|
|
): Boolean {
|
|
return peerManager.updatePeerInfo(peerID, nickname, noisePublicKey, signingPublicKey, isVerified)
|
|
}
|
|
|
|
/**
|
|
* Get our identity fingerprint
|
|
*/
|
|
fun getIdentityFingerprint(): String {
|
|
return encryptionService.getIdentityFingerprint()
|
|
}
|
|
|
|
/**
|
|
* Check if encryption icon should be shown for a peer
|
|
*/
|
|
fun shouldShowEncryptionIcon(peerID: String): Boolean {
|
|
return encryptionService.hasEstablishedSession(peerID)
|
|
}
|
|
|
|
/**
|
|
* Get all peers with established encrypted sessions
|
|
*/
|
|
fun getEncryptedPeers(): List<String> {
|
|
// SIMPLIFIED: Return empty list for now since we don't have direct access to sessionManager
|
|
// This method is not critical for the session retention fix
|
|
return emptyList()
|
|
}
|
|
|
|
/**
|
|
* Get device address for a specific peer ID
|
|
*/
|
|
fun getDeviceAddressForPeer(peerID: String): String? {
|
|
return connectionManager.addressPeerMap.entries.find { it.value == peerID }?.key
|
|
}
|
|
|
|
/**
|
|
* Get all device addresses mapped to their peer IDs
|
|
*/
|
|
fun getDeviceAddressToPeerMapping(): Map<String, String> {
|
|
return connectionManager.addressPeerMap.toMap()
|
|
}
|
|
|
|
/**
|
|
* Print device addresses for all connected peers
|
|
*/
|
|
fun printDeviceAddressesForPeers(): String {
|
|
return peerManager.getDebugInfoWithDeviceAddresses(connectionManager.addressPeerMap)
|
|
}
|
|
|
|
/**
|
|
* Get debug status information
|
|
*/
|
|
fun getDebugStatus(): String {
|
|
return buildString {
|
|
appendLine("=== Bluetooth Mesh Service Debug Status ===")
|
|
appendLine("My Peer ID: $myPeerID")
|
|
appendLine()
|
|
appendLine(connectionManager.getDebugInfo())
|
|
appendLine()
|
|
appendLine(peerManager.getDebugInfo(connectionManager.addressPeerMap))
|
|
appendLine()
|
|
appendLine(peerManager.getFingerprintDebugInfo())
|
|
appendLine()
|
|
appendLine(fragmentManager.getDebugInfo())
|
|
appendLine()
|
|
appendLine(securityManager.getDebugInfo())
|
|
appendLine()
|
|
appendLine(storeForwardManager.getDebugInfo())
|
|
appendLine()
|
|
appendLine(messageHandler.getDebugInfo())
|
|
appendLine()
|
|
appendLine(packetProcessor.getDebugInfo())
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Convert hex string peer ID to binary data (8 bytes) - exactly same as iOS
|
|
*/
|
|
private fun hexStringToByteArray(hexString: String): ByteArray {
|
|
val result = ByteArray(8) { 0 } // Initialize with zeros, exactly 8 bytes
|
|
var tempID = hexString
|
|
var index = 0
|
|
|
|
while (tempID.length >= 2 && index < 8) {
|
|
val hexByte = tempID.substring(0, 2)
|
|
val byte = hexByte.toIntOrNull(16)?.toByte()
|
|
if (byte != null) {
|
|
result[index] = byte
|
|
}
|
|
tempID = tempID.substring(2)
|
|
index++
|
|
}
|
|
|
|
return result
|
|
}
|
|
|
|
/**
|
|
* Sign packet before broadcasting using our signing private key
|
|
*/
|
|
private fun signPacketBeforeBroadcast(packet: BitchatPacket): BitchatPacket {
|
|
return try {
|
|
// Get the canonical packet data for signing (without signature)
|
|
val packetDataForSigning = packet.toBinaryDataForSigning()
|
|
if (packetDataForSigning == null) {
|
|
Log.w(TAG, "Failed to encode packet type ${packet.type} for signing, sending unsigned")
|
|
return packet
|
|
}
|
|
|
|
// Sign the packet data using our signing key
|
|
val signature = encryptionService.signData(packetDataForSigning)
|
|
if (signature != null) {
|
|
Log.d(TAG, "✅ Signed packet type ${packet.type} (signature ${signature.size} bytes)")
|
|
packet.copy(signature = signature)
|
|
} else {
|
|
Log.w(TAG, "Failed to sign packet type ${packet.type}, sending unsigned")
|
|
packet
|
|
}
|
|
} catch (e: Exception) {
|
|
Log.w(TAG, "Error signing packet type ${packet.type}: ${e.message}, sending unsigned")
|
|
packet
|
|
}
|
|
}
|
|
|
|
// MARK: - Panic Mode Support
|
|
|
|
/**
|
|
* Clear all internal mesh service data (for panic mode)
|
|
*/
|
|
fun clearAllInternalData() {
|
|
Log.w(TAG, "🚨 Clearing all mesh service internal data")
|
|
try {
|
|
// Clear all managers
|
|
fragmentManager.clearAllFragments()
|
|
storeForwardManager.clearAllCache()
|
|
securityManager.clearAllData()
|
|
peerManager.clearAllPeers()
|
|
peerManager.clearAllFingerprints()
|
|
Log.d(TAG, "✅ Cleared all mesh service internal data")
|
|
} catch (e: Exception) {
|
|
Log.e(TAG, "❌ Error clearing mesh service internal data: ${e.message}")
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Clear all encryption and cryptographic data (for panic mode)
|
|
*/
|
|
fun clearAllEncryptionData() {
|
|
Log.w(TAG, "🚨 Clearing all encryption data")
|
|
try {
|
|
// Clear encryption service persistent identity (includes Ed25519 signing keys)
|
|
encryptionService.clearPersistentIdentity()
|
|
Log.d(TAG, "✅ Cleared all encryption data")
|
|
} catch (e: Exception) {
|
|
Log.e(TAG, "❌ Error clearing encryption data: ${e.message}")
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Delegate interface for mesh service callbacks (maintains exact same interface)
|
|
*/
|
|
interface BluetoothMeshDelegate {
|
|
fun didReceiveMessage(message: BitchatMessage)
|
|
fun didUpdatePeerList(peers: List<String>)
|
|
fun didReceiveChannelLeave(channel: String, fromPeer: String)
|
|
fun didReceiveDeliveryAck(messageID: String, recipientPeerID: String)
|
|
fun didReceiveReadReceipt(messageID: String, recipientPeerID: String)
|
|
fun decryptChannelMessage(encryptedContent: ByteArray, channel: String): String?
|
|
fun getNickname(): String?
|
|
fun isFavorite(peerID: String): Boolean
|
|
// registerPeerPublicKey REMOVED - fingerprints now handled centrally in PeerManager
|
|
}
|