53 lines
1.3 KiB
Go
53 lines
1.3 KiB
Go
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package middleware
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import (
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"context"
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"net/http"
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"strings"
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"github.com/golang-jwt/jwt/v5"
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"boc/config"
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"boc/handlers"
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)
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func Auth(cfg *config.Config) func(http.Handler) http.Handler {
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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authHeader := r.Header.Get("Authorization")
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if authHeader == "" {
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writeError(w, http.StatusUnauthorized, "missing bearer token")
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return
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}
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tokenString := strings.TrimPrefix(authHeader, "Bearer ")
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if tokenString == authHeader {
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writeError(w, http.StatusUnauthorized, "invalid authorization header")
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return
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}
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token, err := jwt.ParseWithClaims(tokenString, &handlers.Claims{}, func(token *jwt.Token) (interface{}, error) {
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return []byte(cfg.JWTSecret), nil
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})
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if err != nil || !token.Valid {
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writeError(w, http.StatusUnauthorized, "invalid token")
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return
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}
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claims, ok := token.Claims.(*handlers.Claims)
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if !ok {
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writeError(w, http.StatusUnauthorized, "invalid claims")
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return
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}
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ctx := context.WithValue(r.Context(), "user", claims)
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next.ServeHTTP(w, r.WithContext(ctx))
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})
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}
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}
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func writeError(w http.ResponseWriter, status int, message string) {
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(status)
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w.Write([]byte(`{"error":"` + message + `"}`))
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}
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