forked from wrenn/wrenn
70 lines
2.2 KiB
Go
70 lines
2.2 KiB
Go
package api
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import (
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"log/slog"
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"net/http"
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"strings"
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"git.omukk.dev/wrenn/wrenn/pkg/auth"
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"git.omukk.dev/wrenn/wrenn/pkg/db"
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"git.omukk.dev/wrenn/wrenn/pkg/id"
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)
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// requireJWT validates a JWT from the Authorization: Bearer header.
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// It also verifies the user is still active in the database.
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// WebSocket upgrade requests without an Authorization header are passed through
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// — WS handlers authenticate via the first message after upgrade.
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func requireJWT(secret []byte, queries *db.Queries) 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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var tokenStr string
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if header := r.Header.Get("Authorization"); strings.HasPrefix(header, "Bearer ") {
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tokenStr = strings.TrimPrefix(header, "Bearer ")
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}
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if tokenStr == "" {
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writeError(w, http.StatusUnauthorized, "unauthorized", "Authorization: Bearer <token> required")
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return
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}
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claims, err := auth.VerifyJWT(secret, tokenStr)
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if err != nil {
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writeError(w, http.StatusUnauthorized, "unauthorized", "invalid or expired token")
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return
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}
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teamID, err := id.ParseTeamID(claims.TeamID)
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if err != nil {
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writeError(w, http.StatusUnauthorized, "unauthorized", "invalid team ID in token")
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return
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}
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userID, err := id.ParseUserID(claims.Subject)
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if err != nil {
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writeError(w, http.StatusUnauthorized, "unauthorized", "invalid user ID in token")
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return
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}
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// Verify user is still active in the database.
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user, err := queries.GetUserByID(r.Context(), userID)
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if err != nil {
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slog.Warn("jwt auth: failed to look up user", "user_id", claims.Subject, "error", err)
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writeError(w, http.StatusUnauthorized, "unauthorized", "user not found")
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return
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}
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if user.Status != "active" {
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writeError(w, http.StatusForbidden, "account_deactivated", "your account has been deactivated — contact your administrator to regain access")
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return
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}
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ctx := auth.WithAuthContext(r.Context(), auth.AuthContext{
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TeamID: teamID,
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UserID: userID,
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Email: claims.Email,
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Name: claims.Name,
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Role: claims.Role,
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IsAdmin: claims.IsAdmin,
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})
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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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