Joseph Doherty
9f66ef72c6
feat: add NATS config file parser (port of Go conf/parse.go)
...
Implements NatsConfParser with Parse, ParseFile, and ParseFileWithDigest
methods. Supports nested maps/arrays, variable resolution with block
scoping and environment fallback, bcrypt password literals, integer
suffix multipliers, include directives, and cycle detection.
2026-02-23 04:35:46 -05:00
Joseph Doherty
ae043136a1
fix: address lexer code review findings (newline handling, emit cleanup, null guard)
2026-02-23 04:30:36 -05:00
Joseph Doherty
f952e6afab
feat: add new NatsOptions fields for Go config parity
...
Adds 10 new fields to NatsOptions (ClientAdvertise, TraceVerbose, MaxTracedMsgLen,
DisableSublistCache, ConnectErrorReports, ReconnectErrorReports, NoHeaderSupport,
MaxClosedClients, NoSystemAccount, SystemAccount) plus InCmdLine tracking set.
Moves MaxClosedClients from a private constant in NatsServer to a configurable option.
2026-02-23 04:23:27 -05:00
Joseph Doherty
9fff5709c4
feat: add NATS config file lexer (port of Go conf/lex.go)
...
Port the NATS configuration file lexer from Go's conf/lex.go to C#.
The lexer is a state-machine tokenizer that supports the NATS config
format: key-value pairs with =, :, or whitespace separators; nested
maps {}; arrays []; single and double quoted strings with escape
sequences; block strings (); variables $VAR; include directives;
comments (# and //); booleans; integers with size suffixes (kb, mb, gb);
floats; ISO8601 datetimes; and IP addresses.
2026-02-23 04:20:56 -05:00
Joseph Doherty
f533bf0945
docs: add design document for remaining lower-priority gaps
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Covers JWT authentication, subject mapping/transforms, OCSP support,
Windows Service integration, per-subsystem logging, per-client trace,
per-account stats, and TLS cert expiry in /varz.
2026-02-23 04:12:45 -05:00
Joseph Doherty
fadbbf463c
docs: add detailed implementation plan for config parsing and hot reload
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8 tasks with TDD steps, complete test code, exact file paths,
and dependency chain from lexer through to verification.
2026-02-23 04:12:11 -05:00
Joseph Doherty
65fac32a14
docs: add config parsing and hot reload design document
...
Captures the design for resolving the two remaining high-priority gaps
in differences.md: config file parsing and SIGHUP hot reload.
2026-02-23 04:06:16 -05:00
Joseph Doherty
cc5ce63cb9
Merge branch 'feature/sections-7-10-gaps' into main
2026-02-23 03:34:00 -05:00
Joseph Doherty
56de543713
docs: update differences.md sections 7-10 to reflect implemented features
2026-02-23 01:08:34 -05:00
Joseph Doherty
42c7c9cb7a
docs: update differences.md sections 3-6 and 9 to reflect implemented features
...
Update comparison tables for protocol parsing (tracing, MIME headers, INFO caching,
Span-based MSG), subscriptions (generation ID, Stats, SubjectsCollide, token utils,
account limits), auth (deny enforcement, LRU cache, response permissions, auth expiry),
configuration (CLI flags, MaxSubs, Tags, file logging), and logging (trace/debug modes,
file output). Mark 11 summary items as resolved.
2026-02-23 01:07:14 -05:00
Joseph Doherty
8878301c7f
test: add file logging and rotation tests
2026-02-23 01:05:10 -05:00
Joseph Doherty
e31ba04fdb
feat: add closed connection tracking, state filtering, ByStop/ByReason sorting
2026-02-23 01:01:56 -05:00
Joseph Doherty
dab8004d6b
feat: cache INFO serialization — build once at startup instead of per-connection
...
Avoids re-serializing the same ServerInfo JSON on every new connection. The
cache is rebuilt when the ephemeral port is resolved. Connections that carry a
per-connection nonce (NKey auth) continue to serialize individually so the nonce
is included correctly.
2026-02-23 01:01:38 -05:00
Joseph Doherty
f0b5edd7c6
feat: add response permission tracking for dynamic reply subject authorization
2026-02-23 00:59:15 -05:00
Joseph Doherty
1806ae607e
test: add TLS rate limiter unit tests
2026-02-23 00:57:14 -05:00
Joseph Doherty
1f13269447
feat: implement TLS cert-to-user mapping via X500 DN matching
2026-02-23 00:55:29 -05:00
Joseph Doherty
7a897c1087
feat: add MaxSubs enforcement, delivery-time deny filtering, auto-unsub cleanup
2026-02-23 00:53:15 -05:00
Joseph Doherty
e9b6c7fdd3
feat: add protocol tracing (<<- op arg) at LogLevel.Trace
2026-02-23 00:52:00 -05:00
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