Commit Graph
7 Commits
Author SHA1 Message Date
lukaszraczylo c25c6e38e1 perf(sse): skip line splitting for single-line data events 2026-09-29 12:31:04 +01:00
lukaszraczylo 4c01c75276 fix(gateway): close billing, limit, routing and translation gaps
Billing:
- Passthrough SSE streams now bill the usage the upstream reports.
  The gateway falls back to a request-size estimate only on a 2xx
  stream or a truncated JSON body.
- A unified stream that fails after it starts is estimated, not
  billed at zero.
- Billing uses the built-in LiteLLM price table and honours
  modelMeta free: true.
- Pricing entries are validated. Cost arithmetic rounds the total and
  saturates on overflow.
- Gemini thinking tokens count as completion tokens.

Limits and storage:
- A rejected request rolls back its counts on the other scopes, so one
  user cannot lock out a group.
- Redis EXPIRE replies are checked. Keys recreated without a TTL are
  repaired at once.
- A mutating pipeline is not retried after reply bytes arrive.
- History, model totals and target usage report a store outage.

Routing and translation:
- Discovered ids with a provider-like prefix are listed only in
  owner/id form, so listing and routing agree.
- Anthropic and Gemini discovery follows pagination.
- The developer role maps to system.
- stream_options.include_usage is honoured on translated streams.
- tool_choice none keeps tools when history holds tool blocks.
- refusal maps to content_filter. Data URI parameters are stripped.

Streaming, retry and failover:
- SSE accepts CR, LF and CRLF line ends. This closes a CR injection
  path.
- Retry-After is never jittered. A cancelled wait returns the
  context error.
- The watchdog timer stops at end of body.
- Oversized bodies return 413.
- A failed stream ends with an error event.
- Failover restores pre-existing headers. Client cancels do not count
  as provider successes.

Also: "admin" is a reserved provider name. metrics.path must start
with "/". Pricing warnings go to the right gateway instance. The admin
targets view sends access as null or [] so the two states differ.
Upstream organisation headers are stripped. The users-file reload
error is logged once per error. Dead code is removed, and test-only
helpers move to test files.

Claude-Session: https://claude.ai/code/session_01V5jYJNxpDFdJkyyExpADrv
2026-09-23 09:44:31 +01:00
lukaszraczylo b3b8ae6ad5 fix(security): harden retry, SSE, Redis and cost-budget paths
The gateway refuses a request for an unpriced model when the caller has a
cost budget. An unpriced model cost 0, so the budget counter was never
written and the budget could never fire. The new
allowUnpricedWithCostBudget setting restores the old behaviour.

The retry loop honours an upstream Retry-After of up to 30s and jitters
its own computed backoff. SSE parsing bounds the total size of one event.
The Redis client can use TLS. Provider base URLs and errors are scrubbed
of credentials before they reach logs or the admin view. The gateway
warns when failover and retry settings multiply into a large number of
outbound calls.

Claude-Session: https://claude.ai/code/session_01V5jYJNxpDFdJkyyExpADrv
2026-09-23 09:35:38 +01:00
lukaszraczylo 7939c3e74b test: integration suite with real Traefik, redis-shared limits, streaming assertions
Adds integration/ (separate module): docker compose stack with real Traefik
v3.5 + localPlugins, mock openai/anthropic/gemini/tool providers, shared
Redis, and a raw-TCP streaming timing probe. 6/7 tests pass; streaming
incrementality fails on a confirmed external yaegi/Traefik bug (see
task-15-report.md), not a plugin defect.

Fixes 4 real Yaegi-interpretation bugs surfaced by running the plugin under
real Traefik for the first time (none caught by go test or yaegi-check,
which never exercises chat/embeddings/streaming/Redis):

- .traefik.yml: add basePkg (Traefik derives the yaegi binding identifier
  from the module path, not the package's own declared name; without this
  override the plugin never loads at all).
- registry.go: resolveAgainst's multi-value return panicked yaegi on an
  inline string concatenation; assign to a local first.
- routes_unified.go: errors.As panicked yaegi on interpreted pointer error
  types; use plain type assertions (both types are always returned bare,
  never wrapped).
- sse.go: readSSE's dispatch closure hit the same multi-value-assignment
  panic as registry.go; split into separate statements.
- resp.go: respErr as a defined string type was indistinguishable from a
  plain string in a yaegi type assertion, misreading every successful
  Redis SELECT reply as failed and silently disabling rate limiting;
  changed to a struct.
2026-08-20 13:28:20 +01:00
lukaszraczylo ee251e45e5 fix(sse): spec-exact dispatch gate, BOM strip, flushWriter constructor 2026-08-20 02:52:30 +01:00
lukaszraczylo af93e3382f fix(sse): gate event dispatch on data presence, not event: alone 2026-08-20 02:40:51 +01:00
lukaszraczylo 0c6b53d296 feat: SSE reader and flushing writers 2026-08-20 02:39:21 +01:00