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Code Issues Packages Projects Releases 2 Wiki Activity

refactor: Replace string reading methods with CString equivalents and improve error handling

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This commit is contained in:
Winston Lowe
2026-03-22 10:50:11 -07:00
parent dbefb0b5f4
commit 767dc1164e
8 changed files with 82 additions and 135 deletions
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lib/services/message_retry_service.dart
+4 -5
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@@ -98,7 +98,7 @@ class MessageRetryService extends ChangeNotifier {
/// Compute expected ACK hash using same algorithm as firmware:
/// SHA256([timestamp(4)][attempt(1)][text][sender_pubkey(32)]) -> first 4 bytes
static Uint8List computeExpectedAckHash(
static int computeExpectedAckHash(
int timestampSeconds,
int attempt,
String text,
@@ -126,7 +126,8 @@ class MessageRetryService extends ChangeNotifier {
// Compute SHA256 and return first 4 bytes
final hash = sha256.convert(buffer);
return Uint8List.fromList(hash.bytes.sublist(0, 4));
final bytes = Uint8List.fromList(hash.bytes.sublist(0, 4));
return (bytes[3] << 24) | (bytes[2] << 16) | (bytes[1] << 8) | bytes[0];
}
Future<void> sendMessageWithRetry({
@@ -324,9 +325,7 @@ class MessageRetryService extends ChangeNotifier {
outboundText,
selfPubKey,
);
final expectedHashHex = expectedHash
.map((b) => b.toRadixString(16).padLeft(2, '0'))
.join();
final expectedHashHex = expectedHash.toRadixString(16).padLeft(8, '0');
_expectedHashToMessageId[expectedHashHex] = messageId;
final shortText = message.text.length > 20