api/middleware.go
Snider de63217168 feat: AX v0.8.0 — Core primitives, Result returns, zero disallowed imports
- api.go: errors.Is → core.Is
- openapi.go: Build returns core.Result, encoding/json → core.JSONMarshal
- export.go: rewrite with core.Fs, core.JSONUnmarshal, returns core.Result
- codegen.go: rewrite with c.Process(), core.Fs, App.Find — no os/exec
- sse.go: encoding/json → core.JSONMarshalString, fmt → core.Sprintf
- swagger.go: fmt → core.Sprintf, Build caller updated for core.Result
- middleware.go: strings → core.HasPrefix/SplitN/Lower
- authentik.go: strings → core.HasPrefix/TrimPrefix/Split/Trim/Contains
- brotli.go: strings → core.Contains

Transport boundary files (net/http, io for compression) retained.

Co-Authored-By: Virgil <virgil@lethean.io>
2026-03-26 08:39:59 +00:00

59 lines
1.6 KiB
Go

// SPDX-License-Identifier: EUPL-1.2
package api
import (
"crypto/rand"
"encoding/hex"
"net/http"
core "dappco.re/go/core"
"github.com/gin-gonic/gin"
)
// bearerAuthMiddleware validates the Authorization: Bearer <token> header.
// Requests to paths in the skip list are allowed through without authentication.
// Returns 401 with Fail("unauthorised", ...) on missing or invalid tokens.
func bearerAuthMiddleware(token string, skip []string) gin.HandlerFunc {
return func(c *gin.Context) {
// Check whether the request path should bypass authentication.
for _, path := range skip {
if core.HasPrefix(c.Request.URL.Path, path) {
c.Next()
return
}
}
header := c.GetHeader("Authorization")
if header == "" {
c.AbortWithStatusJSON(http.StatusUnauthorized, Fail("unauthorised", "missing authorization header"))
return
}
parts := core.SplitN(header, " ", 2)
if len(parts) != 2 || core.Lower(parts[0]) != "bearer" || parts[1] != token {
c.AbortWithStatusJSON(http.StatusUnauthorized, Fail("unauthorised", "invalid bearer token"))
return
}
c.Next()
}
}
// requestIDMiddleware ensures every response carries an X-Request-ID header.
// If the client sends one, it is preserved; otherwise a random 16-byte hex
// string is generated. The ID is also stored in the Gin context as "request_id".
func requestIDMiddleware() gin.HandlerFunc {
return func(c *gin.Context) {
id := c.GetHeader("X-Request-ID")
if id == "" {
b := make([]byte, 16)
_, _ = rand.Read(b)
id = hex.EncodeToString(b)
}
c.Set("request_id", id)
c.Header("X-Request-ID", id)
c.Next()
}
}