Initial commit. Working login, example UI with prototype and demo, connections to DB and DAV, local and prod setups.

backend/auth/jwt.go

@@ -0,0 +1,56 @@
+// auth/jwt.go
+package auth
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/go-chi/jwtauth/v5"
+)
+
+var TokenAuth *jwtauth.JWTAuth
+
+// AuthResponse is the response structure for login/refresh endpoints
+type AuthResponse struct {
+	Token string `json:"token"`
+}
+
+func InitJWT(secret string) {
+	TokenAuth = jwtauth.New("HS256", []byte(secret), nil)
+}
+
+// GenerateToken creates a JWT with user_id and role
+func GenerateToken(userID string, role string) (string, error) {
+	_, tokenString, err := TokenAuth.Encode(map[string]interface{}{
+		"user_id": userID,
+		"role":    role,
+		"exp":     time.Now().Add(30 * 24 * time.Hour).Unix(), // 30 days
+	})
+	return tokenString, err
+}
+
+// VerifyToken validates JWT and returns user_id and role
+func VerifyToken(tokenString string, ctx context.Context) (userID string, role string, err error) {
+	token, err := TokenAuth.Decode(tokenString)
+	if err != nil {
+		return "", "", err
+	}
+
+	claims, err := token.AsMap(ctx)
+	if err != nil {
+		return "", "", err
+	}
+
+	userID, ok := claims["user_id"].(string)
+	if !ok {
+		return "", "", fmt.Errorf("invalid user_id claim")
+	}
+
+	role, ok = claims["role"].(string)
+	if !ok {
+		return "", "", fmt.Errorf("invalid role claim")
+	}
+
+	return userID, role, nil
+}