92 lines
2.3 KiB
Go
92 lines
2.3 KiB
Go
package mw
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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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"crussell/auth"
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)
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type contextKey string
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const (
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UserIDKey contextKey = "user_id"
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UserRoleKey contextKey = "user_role"
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)
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// RequireAuth middleware - validates JWT and adds user info to context
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func RequireAuth(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 == "" || !strings.HasPrefix(authHeader, "Bearer ") {
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http.Error(w, "missing or invalid authorization header", http.StatusUnauthorized)
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return
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}
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tokenString := strings.TrimPrefix(authHeader, "Bearer ")
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userID, role, err := auth.VerifyToken(tokenString, r.Context())
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if err != nil {
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http.Error(w, "invalid token", http.StatusUnauthorized)
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return
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}
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// Add user info to context
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ctx := context.WithValue(r.Context(), UserIDKey, userID)
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ctx = context.WithValue(ctx, UserRoleKey, role)
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next.ServeHTTP(w, r.WithContext(ctx))
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})
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}
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// RequireRole middleware - checks if user has required role(s)
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func RequireRole(allowedRoles ...string) 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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role, ok := r.Context().Value(UserRoleKey).(string)
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if !ok {
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http.Error(w, "unauthorized", http.StatusUnauthorized)
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return
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}
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// Check if user has one of the allowed roles
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hasRole := false
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for _, allowedRole := range allowedRoles {
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if role == allowedRole {
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hasRole = true
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break
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}
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}
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if !hasRole {
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http.Error(w, "forbidden", http.StatusForbidden)
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return
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}
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next.ServeHTTP(w, r)
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})
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}
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}
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// RequireVerified middleware - only allows verified_email and admin
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func RequireVerified(next http.Handler) http.Handler {
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return RequireRole("verified_email", "admin")(next)
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}
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// RequireAdmin middleware - only allows admin
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func RequireAdmin(next http.Handler) http.Handler {
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return RequireRole("admin")(next)
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}
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// Helper functions to get user info from context
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func GetUserID(ctx context.Context) (string, bool) {
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userID, ok := ctx.Value(UserIDKey).(string)
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return userID, ok
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}
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func GetUserRole(ctx context.Context) (string, bool) {
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role, ok := ctx.Value(UserRoleKey).(string)
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return role, ok
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}
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