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PeerID 24/n: Nostr Transport and Embedding (#830)

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This commit is contained in:
Islam
2025-10-19 13:54:32 +02:00
committed by GitHub
parent 5084f87fe5
commit 70caa9e24a
3 changed files with 24 additions and 24 deletions
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bitchat/Nostr/NostrEmbeddedBitChat.swift
+15 -15
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@@ -4,7 +4,7 @@ import Foundation
struct NostrEmbeddedBitChat {
/// Build a `bitchat1:` base64url-encoded BitChat packet carrying a private message for Nostr DMs.
static func encodePMForNostr(content: String, messageID: String, recipientPeerID: String, senderPeerID: String) -> String? {
static func encodePMForNostr(content: String, messageID: String, recipientPeerID: PeerID, senderPeerID: PeerID) -> String? {
// TLV-encode the private message
let pm = PrivateMessagePacket(messageID: messageID, content: content)
guard let tlv = pm.encode() else { return nil }
@@ -14,12 +14,12 @@ struct NostrEmbeddedBitChat {
payload.append(tlv)
// Determine 8-byte recipient ID to embed
let recipientIDHex: String = normalizeRecipientPeerID(recipientPeerID)
let recipientID = normalizeRecipientPeerID(recipientPeerID)
let packet = BitchatPacket(
type: MessageType.noiseEncrypted.rawValue,
senderID: Data(hexString: senderPeerID) ?? Data(),
recipientID: Data(hexString: recipientIDHex),
senderID: Data(hexString: senderPeerID.id) ?? Data(),
recipientID: Data(hexString: recipientID.id),
timestamp: UInt64(Date().timeIntervalSince1970 * 1000),
payload: payload,
signature: nil,
@@ -31,18 +31,18 @@ struct NostrEmbeddedBitChat {
}
/// Build a `bitchat1:` base64url-encoded BitChat packet carrying a delivery/read ack for Nostr DMs.
static func encodeAckForNostr(type: NoisePayloadType, messageID: String, recipientPeerID: String, senderPeerID: String) -> String? {
static func encodeAckForNostr(type: NoisePayloadType, messageID: String, recipientPeerID: PeerID, senderPeerID: PeerID) -> String? {
guard type == .delivered || type == .readReceipt else { return nil }
var payload = Data([type.rawValue])
payload.append(Data(messageID.utf8))
let recipientIDHex: String = normalizeRecipientPeerID(recipientPeerID)
let recipientID = normalizeRecipientPeerID(recipientPeerID)
let packet = BitchatPacket(
type: MessageType.noiseEncrypted.rawValue,
senderID: Data(hexString: senderPeerID) ?? Data(),
recipientID: Data(hexString: recipientIDHex),
senderID: Data(hexString: senderPeerID.id) ?? Data(),
recipientID: Data(hexString: recipientID.id),
timestamp: UInt64(Date().timeIntervalSince1970 * 1000),
payload: payload,
signature: nil,
@@ -54,7 +54,7 @@ struct NostrEmbeddedBitChat {
}
/// Build a `bitchat1:` ACK (delivered/read) without an embedded recipient peer ID (geohash DMs).
static func encodeAckForNostrNoRecipient(type: NoisePayloadType, messageID: String, senderPeerID: String) -> String? {
static func encodeAckForNostrNoRecipient(type: NoisePayloadType, messageID: String, senderPeerID: PeerID) -> String? {
guard type == .delivered || type == .readReceipt else { return nil }
var payload = Data([type.rawValue])
@@ -62,7 +62,7 @@ struct NostrEmbeddedBitChat {
let packet = BitchatPacket(
type: MessageType.noiseEncrypted.rawValue,
senderID: Data(hexString: senderPeerID) ?? Data(),
senderID: Data(hexString: senderPeerID.id) ?? Data(),
recipientID: nil,
timestamp: UInt64(Date().timeIntervalSince1970 * 1000),
payload: payload,
@@ -75,7 +75,7 @@ struct NostrEmbeddedBitChat {
}
/// Build a `bitchat1:` payload without an embedded recipient peer ID (used for geohash DMs).
static func encodePMForNostrNoRecipient(content: String, messageID: String, senderPeerID: String) -> String? {
static func encodePMForNostrNoRecipient(content: String, messageID: String, senderPeerID: PeerID) -> String? {
let pm = PrivateMessagePacket(messageID: messageID, content: content)
guard let tlv = pm.encode() else { return nil }
@@ -84,7 +84,7 @@ struct NostrEmbeddedBitChat {
let packet = BitchatPacket(
type: MessageType.noiseEncrypted.rawValue,
senderID: Data(hexString: senderPeerID) ?? Data(),
senderID: Data(hexString: senderPeerID.id) ?? Data(),
recipientID: nil,
timestamp: UInt64(Date().timeIntervalSince1970 * 1000),
payload: payload,
@@ -96,11 +96,11 @@ struct NostrEmbeddedBitChat {
return "bitchat1:" + base64URLEncode(data)
}
private static func normalizeRecipientPeerID(_ recipientPeerID: String) -> String {
if let maybeData = Data(hexString: recipientPeerID) {
private static func normalizeRecipientPeerID(_ recipientPeerID: PeerID) -> PeerID {
if let maybeData = Data(hexString: recipientPeerID.id) {
if maybeData.count == 32 {
// Treat as Noise static public key; derive peerID from fingerprint
return PeerID(publicKey: maybeData).id
return PeerID(publicKey: maybeData)
} else if maybeData.count == 8 {
// Already an 8-byte peer ID
return recipientPeerID