Files
natsnet/docs/plans/phases/phase6sessions/session-06.md
Joseph Doherty 88b1391ef0 feat: port session 07 — Protocol Parser, Auth extras (TPM/certidp/certstore), Internal utilities & data structures
Session 07 scope (5 features, 17 tests, ~1165 Go LOC):
- Protocol/ParserTypes.cs: ParserState enum (79 states), PublishArgument, ParseContext
- Protocol/IProtocolHandler.cs: handler interface decoupling parser from client
- Protocol/ProtocolParser.cs: Parse(), ProtoSnippet(), OverMaxControlLineLimit(),
  ProcessPub/HeaderPub/RoutedMsgArgs/RoutedHeaderMsgArgs, ClonePubArg(), GetHeader()
- tests/Protocol/ProtocolParserTests.cs: 17 tests via TestProtocolHandler stub

Auth extras from session 06 (committed separately):
- Auth/TpmKeyProvider.cs, Auth/CertificateIdentityProvider/, Auth/CertificateStore/

Internal utilities & data structures (session 06 overflow):
- Internal/AccessTimeService.cs, ElasticPointer.cs, SystemMemory.cs, ProcessStatsProvider.cs
- Internal/DataStructures/GenericSublist.cs, HashWheel.cs
- Internal/DataStructures/SubjectTree.cs, SubjectTreeNode.cs, SubjectTreeParts.cs

All 461 tests pass (460 unit + 1 integration). DB updated for features 2588-2592 and tests 2598-2614.
2026-02-26 13:16:56 -05:00

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# Session 06: Authentication & JWT
## Summary
Authentication handlers (user/pass, token, NKey, TLS cert), auth callout (external auth service), JWT processing, and cipher suite definitions.
## Scope
| Go File | Features | Feature IDs | Go LOC |
|---------|----------|-------------|--------|
| server/auth.go | 31 | 350380 | 1,498 |
| server/auth_callout.go | 3 | 381383 | 456 |
| server/jwt.go | 6 | 19731978 | 205 |
| server/ciphersuites.go | 3 | 384386 | 37 |
| **Total** | **43** | | **2,196** |
## .NET Classes
- `AuthHandler` — authentication dispatch and credential checking
- `AuthCallout` — external auth callout service
- `JwtProcessor` — NATS JWT validation and claims extraction
- `CipherSuites` — TLS cipher suite definitions
## Test Files
| Test File | Tests | Test IDs |
|-----------|-------|----------|
| server/auth_test.go | 12 | 142153 |
| server/auth_callout_test.go | 31 | 111141 |
| server/jwt_test.go | 88 | 18091896 |
| **Total** | **131** | |
## Dependencies
- Session 01 (Foundation Types — errors, constants)
- Session 03 (Configuration — ServerOptions for auth config)
## .NET Target Location
- `dotnet/src/ZB.MOM.NatsNet.Server/Auth/`
## Notes
- Auth is already partially scaffolded from leaf modules (certidp, certstore, tpm)
- JWT test file is large (88 tests) — may need careful batching within the session