Files
scrabble-game/backend/internal/server/middleware.go
T
Ilia Denisov eeaad62b10
Tests · Go / test (push) Successful in 11s
Tests · Integration / integration (push) Successful in 8s
Stage 1: backend foundation (Postgres, sessions, accounts, OTel)
- internal/postgres: pgx-over-database/sql pool (otelsql), embedded goose
  migrations into schema 'backend', committed go-jet code + cmd/jetgen tool.
- internal/account: durable accounts + unified telegram/email identities
  (UUIDv7 keys), find-or-create provisioning with unique-conflict handling.
- internal/session: opaque 256-bit tokens stored as a SHA-256 hash, revoke-only
  (no TTL); write-through cache gating /readyz; store + service.
- internal/telemetry: OTel tracer/meter providers (none/stdout) + request-timing
  middleware; internal/config gains Postgres + OTel env loading.
- internal/server: /api/v1 {public,user,internal,admin} skeleton + X-User-ID
  middleware; /readyz checks DB ping + cache; main wires
  telemetry -> db+migrate -> warm cache -> server.
- Tests: unit + integration (build tag 'integration', testcontainers
  postgres:17) for migrations, accounts, sessions, readyz; new integration.yaml.
- Docs: ARCHITECTURE, TESTING, PLAN refinements, root + backend READMEs.

Session/account REST handlers deferred to Stage 6 (gateway); OTLP + dashboards
to Stage 11.
2026-06-02 13:52:26 +02:00

42 lines
1.3 KiB
Go

package server
import (
"context"
"net/http"
"github.com/gin-gonic/gin"
"github.com/google/uuid"
)
// headerUserID is the identity header the gateway injects after resolving a
// session to an internal account.
const headerUserID = "X-User-ID"
// contextKey is an unexported type for request-context keys set by this package.
type contextKey string
const userIDContextKey contextKey = "scrabble.user_id"
// RequireUserID returns middleware that requires a valid X-User-ID header and
// stores the parsed account id in the request context. Requests without a
// parseable UUID are rejected with 401. The backend treats X-User-ID as the
// sole identity input and never derives identity from the request body.
func RequireUserID() gin.HandlerFunc {
return func(c *gin.Context) {
id, err := uuid.Parse(c.GetHeader(headerUserID))
if err != nil {
c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "missing or invalid X-User-ID"})
return
}
c.Request = c.Request.WithContext(context.WithValue(c.Request.Context(), userIDContextKey, id))
c.Next()
}
}
// UserIDFromContext returns the authenticated account id stored by
// RequireUserID, and whether it was present.
func UserIDFromContext(ctx context.Context) (uuid.UUID, bool) {
id, ok := ctx.Value(userIDContextKey).(uuid.UUID)
return id, ok
}