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Harden private media migration compatibility

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This commit is contained in:
jack
2026-07-26 02:09:31 +02:00
committed by jack
parent a31cd80027
commit 40238c5e43
31 changed files with 2703 additions and 120 deletions
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bitchat/Protocols/BitchatProtocol.swift
+18 -3
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@@ -79,15 +79,30 @@ enum NoisePayloadType: UInt8 {
case groupKeyUpdate = 0x07 // Creator-signed group state (key rotation / roster update)
// Live voice (push-to-talk)
case voiceFrame = 0x08 // One live voice-burst packet (see VoiceBurstPacket)
// Finalized private media. The complete BitchatFilePacket is encrypted
// inside Noise before the outer noiseEncrypted packet is fragmented.
case privateFile = 0x09
// Finalized private media. `0x20` is the value already deployed by the
// Android client. The complete BitchatFilePacket is encrypted inside
// Noise before the outer noiseEncrypted packet is fragmented.
case privateFile = 0x20
// Verification (QR-based OOB binding)
case verifyChallenge = 0x10 // Verification challenge
case verifyResponse = 0x11 // Verification response
// Transitive verification (web of trust)
case vouch = 0x12 // Batch of vouch attestations
/// #1434 briefly used 0x09 before release. Accept it while prerelease
/// builds age out, but never emit it. Decoders canonicalize both values to
/// `.privateFile` so the compatibility alias cannot leak into app logic.
static let prereleasePrivateFileRawValue: UInt8 = 0x09
static func decoded(rawValue: UInt8) -> NoisePayloadType? {
rawValue == prereleasePrivateFileRawValue ? .privateFile : Self(rawValue: rawValue)
}
static func isPrivateFile(rawValue: UInt8?) -> Bool {
guard let rawValue else { return false }
return rawValue == privateFile.rawValue || rawValue == prereleasePrivateFileRawValue
}
var description: String {
switch self {
case .privateMessage: return "privateMessage"