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Author SHA1 Message Date
Joseph Doherty
1269ae8275 feat: implement /subz endpoint with account filter, test subject, and pagination 2026-02-23 00:50:26 -05:00
Joseph Doherty
0347e8a28c fix: increment _removes counter in RemoveBatch for accurate stats 2026-02-23 00:48:53 -05:00
Joseph Doherty
6afe11ad4d feat: add per-account connection/subscription limits with AccountConfig 2026-02-23 00:46:16 -05:00
Joseph Doherty
345e7ca15c feat: implement log reopening on SIGUSR1 signal 2026-02-23 00:46:09 -05:00
Joseph Doherty
cc0fe04f3c feat: add generation-based cache, Stats, HasInterest, NumInterest, RemoveBatch, All, ReverseMatch to SubList 2026-02-23 00:45:28 -05:00
Joseph Doherty
cf75077bc4 feat: add CLI flags for debug/trace modes, file logging, syslog, color, timestamps 2026-02-23 00:43:27 -05:00
Joseph Doherty
4ad821394b feat: add -D/-V/-DV debug/trace CLI flags and file logging support 2026-02-23 00:41:49 -05:00
Joseph Doherty
b7c0e321d9 fix: move stale connection stat increments to detection site in RunPingTimerAsync 2026-02-23 00:41:12 -05:00
Joseph Doherty
0ec5583422 fix: address code quality review findings for batch 1 
- SubjectsCollide: split tokens once upfront instead of O(n²) TokenAt calls
- NatsHeaderParser: manual digit accumulation avoids string allocation and overflow
- NatsHeaders: use IReadOnlyDictionary for Headers, immutable Invalid sentinel
- PermissionLruCache: add missing Count property
 2026-02-23 00:40:14 -05:00
Joseph Doherty
cd4ae3cce6 feat: add stale connection stats tracking and varz exposure 2026-02-23 00:38:43 -05:00
Joseph Doherty
eb25d52ed5 feat: add RTT tracking and first-PING delay to NatsClient 2026-02-23 00:34:30 -05:00
Joseph Doherty
dddced444e feat: add NumTokens, TokenAt, SubjectsCollide, UTF-8 validation to SubjectMatch 2026-02-23 00:33:43 -05:00
Joseph Doherty
e87d4c00d9 feat: add NatsHeaderParser for MIME header parsing 2026-02-23 00:33:24 -05:00
Joseph Doherty
7cf6bb866e feat: add PermissionLruCache (128-entry LRU) and wire into ClientPermissions 2026-02-23 00:33:15 -05:00
Joseph Doherty
17a0a217dd feat: add MaxSubs, MaxSubTokens, Debug, Trace, LogFile, LogSizeLimit, Tags to NatsOptions 2026-02-23 00:32:12 -05:00
Joseph Doherty
573cd06bb1 feat: add logging and timestamp options to NatsOptions 2026-02-23 00:29:45 -05:00
Joseph Doherty
a0f02d6641 chore: add Serilog.Sinks.File and SyslogMessages packages 2026-02-23 00:28:32 -05:00
Joseph Doherty
5b383ada4b docs: add implementation plan for sections 3-6 gaps 2026-02-23 00:28:31 -05:00
Joseph Doherty
060e1ee23d docs: add implementation plan for sections 7-10 gaps 2026-02-23 00:25:04 -05:00
Joseph Doherty
f4efbcf09e docs: add design for sections 7-10 gaps implementation 2026-02-23 00:17:35 -05:00
Joseph Doherty
f86ea57f43 docs: add design for sections 3-6 gaps implementation 2026-02-23 00:17:24 -05:00
Joseph Doherty
3941c85e76 Merge branch 'feature/core-lifecycle' into main 
Reconcile close reason tracking: feature branch's MarkClosed() and
ShouldSkipFlush/FlushAndCloseAsync now use main's ClientClosedReason
enum. ClosedState enum retained for forward compatibility.
 2026-02-23 00:09:30 -05:00
Joseph Doherty
2baf8a85bf docs: update differences.md section 2 to reflect implemented features 2026-02-22 23:59:19 -05:00
Joseph Doherty
f5c0c4f906 feat: wire pending bytes and close reason into connz monitoring 2026-02-22 23:57:39 -05:00
Joseph Doherty
5323c8bb30 docs: update differences.md section 1 to reflect core lifecycle implementation 2026-02-22 23:56:57 -05:00
Joseph Doherty
2fb14821e0 feat: add no-responders CONNECT validation and tests 
Reject connections that send no_responders:true without headers:true,
since the 503 HMSG response requires header support. Add three tests:
connection rejection, acceptance with headers, and 503 delivery flow.
 2026-02-22 23:56:49 -05:00
Joseph Doherty
04305447f9 feat: implement verbose mode (+OK after commands) 
When a client sends CONNECT {"verbose":true}, the server now responds
with +OK\r\n after successfully processing CONNECT, PING, SUB, UNSUB,
and PUB/HPUB commands, matching the Go NATS server behavior.
 2026-02-22 23:54:41 -05:00
Joseph Doherty
df39ebdc58 feat: add signal handling (SIGTERM, SIGUSR2, SIGHUP) and CLI stubs 2026-02-22 23:52:49 -05:00
Joseph Doherty
bce793fd42 perf: batch stat increments per read cycle in ProcessCommandsAsync 
Accumulate InMsgs/InBytes locally per ReadAsync cycle and flush once,
reducing from 4 Interlocked operations per published message to 2 per
read cycle. This matches the Go server's approach of batching stats.
 2026-02-22 23:52:09 -05:00
Joseph Doherty
e57605f090 feat: add PID file and ports file support 2026-02-22 23:50:22 -05:00
Joseph Doherty
c522ce99f5 feat: add delivery tracking and no-responders 503 support to ProcessMessage 
When a PUB with a reply-to subject has no matching subscribers and the
sender opted into no_responders, send a 503 HMSG back on the reply
subject so request-reply callers can fail fast instead of timing out.
 2026-02-22 23:49:39 -05:00
Joseph Doherty
34067f2b9b feat: add lame duck mode with staggered client shutdown 2026-02-22 23:48:06 -05:00
Joseph Doherty
b289041761 test: add write loop and slow consumer detection tests 
Verify channel-based write loop behavior: QueueOutbound writes data
to client socket, PendingBytes tracking, slow consumer detection
when MaxPending is exceeded, close reason propagation, and server
stats incrementation on slow consumer events.
 2026-02-22 23:47:31 -05:00
Joseph Doherty
45de110a84 feat: add flush-before-close for graceful client shutdown 2026-02-22 23:45:26 -05:00
Joseph Doherty
b68f898fa0 feat: add graceful shutdown, accept loop backoff, and task tracking 2026-02-22 23:43:25 -05:00
Joseph Doherty
31660a4187 feat: replace inline writes with channel-based write loop and batch flush 2026-02-22 23:41:44 -05:00
Joseph Doherty
600c6f9e5a feat: add system account ($SYS) and server NKey identity stubs 2026-02-22 23:39:22 -05:00
Joseph Doherty
086b4f50e8 feat: add close reason tracking to NatsClient 2026-02-22 23:36:55 -05:00
Joseph Doherty
38eaaa8b83 feat: add ephemeral port (port=0) support 2026-02-22 23:36:01 -05:00
Joseph Doherty
ad6a02b9a2 refactor: replace _connectReceived with ClientFlagHolder and add CloseReason tracking 2026-02-22 23:35:35 -05:00
Joseph Doherty
9ae75207fc feat: add ClosedState enum ported from Go client.go 2026-02-22 23:34:05 -05:00
Joseph Doherty
61c6b832e5 feat: add MaxPending, WriteDeadline options and error constants 2026-02-22 23:33:49 -05:00
Joseph Doherty
d0aa6a5fdd feat: add lifecycle options (lame duck, PID file, ports file, config stub) 2026-02-22 23:33:44 -05:00
Joseph Doherty
1a916a3f36 feat: add ClientFlags bitfield with thread-safe holder 2026-02-22 23:33:21 -05:00
Joseph Doherty
8bbfa54058 feat: add ClientClosedReason enum with 16 close reason values 2026-02-22 23:33:13 -05:00
Joseph Doherty
149c852510 docs: add core lifecycle implementation plan with 12 tasks 
Detailed step-by-step plan covering ClosedState enum, close reason
tracking, ephemeral port, graceful shutdown, flush-before-close,
lame duck mode, PID/ports files, NKey stubs, signal handling, and
differences.md update.
 2026-02-22 23:31:01 -05:00
Joseph Doherty
c2dc503e2e docs: add core server lifecycle design for section 1 gaps 
Covers ClosedState enum, accept loop backoff, ephemeral port,
graceful shutdown, lame duck mode, PID/ports files, signal
handling, and stub components.
 2026-02-22 23:25:53 -05:00
Joseph Doherty
4d89661e79 feat: add monitoring HTTP endpoints and TLS support 
Monitoring HTTP:
- /varz, /connz, /healthz via Kestrel Minimal API
- Pagination, sorting, subscription details on /connz
- ServerStats atomic counters, CPU/memory sampling
- CLI flags: -m, --http_port, --http_base_path, --https_port

TLS Support:
- 4-mode negotiation: no TLS, required, TLS-first, mixed
- Certificate loading, pinning (SHA-256), client cert verification
- PeekableStream for non-destructive TLS detection
- Token-bucket rate limiter for TLS handshakes
- CLI flags: --tls, --tlscert, --tlskey, --tlscacert, --tlsverify

29 new tests (78 → 107 total), all passing.

# Conflicts:
#	src/NATS.Server.Host/Program.cs
#	src/NATS.Server/NATS.Server.csproj
#	src/NATS.Server/NatsClient.cs
#	src/NATS.Server/NatsOptions.cs
#	src/NATS.Server/NatsServer.cs
#	src/NATS.Server/Protocol/NatsProtocol.cs
#	tests/NATS.Server.Tests/ClientTests.cs
 2026-02-22 23:13:22 -05:00
Joseph Doherty
a6e9bd1467 feat: add monitoring port CLI args to server host 
Support -m/--http_port, --http_base_path, and --https_port flags for
configuring the monitoring HTTP endpoint from the command line.
 2026-02-22 23:08:04 -05:00
Joseph Doherty
543b185f7e fix: address code quality issues from review 
- Make ConnectReceived thread-safe with Volatile.Read/Write (accessed from auth timeout task and command pipeline)
- Include authTimeoutTask in Task.WhenAny to propagate exceptions
- Clear nonce after authentication with CryptographicOperations.ZeroMemory
- Avoid closure allocation on publish permission cache hot path (method group)
- Update AuthTimeout default to 2s to match Go server
 2026-02-22 23:07:31 -05:00