feat: scaffold initial RSS reader project with Go backend and React frontend

2026-08-24 08:08:31 -07:00
commit 3742dbdce4
44 changed files with 9901 additions and 0 deletions
@@ -0,0 +1,140 @@
+package auth
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/golang-jwt/jwt/v5"
+	"github.com/haopengzhan/rsspipe/internal/config"
+	"github.com/haopengzhan/rsspipe/internal/db"
+	"golang.org/x/crypto/bcrypt"
+)
+
+type contextKey string
+
+const UserContextKey contextKey = "user"
+
+type Claims struct {
+	UserID   string `json:"user_id"`
+	Username string `json:"username"`
+	jwt.RegisteredClaims
+}
+
+type AuthService struct {
+	db     *db.DB
+	config *config.Config
+}
+
+func NewAuthService(database *db.DB, cfg *config.Config) *AuthService {
+	return &AuthService{
+		db:     database,
+		config: cfg,
+	}
+}
+
+func (s *AuthService) BootstrapAdmin() error {
+	count, err := s.db.CountUsers()
+	if err != nil {
+		return fmt.Errorf("failed to count users: %w", err)
+	}
+	if count == 0 {
+		hash, err := bcrypt.GenerateFromPassword([]byte(s.config.AdminPassword), bcrypt.DefaultCost)
+		if err != nil {
+			return fmt.Errorf("failed to hash admin password: %w", err)
+		}
+		_, err = s.db.CreateUser(s.config.AdminUsername, string(hash))
+		if err != nil {
+			return fmt.Errorf("failed to bootstrap admin user: %w", err)
+		}
+		fmt.Printf("==> Initialized Admin user: '%s'\n", s.config.AdminUsername)
+	}
+	return nil
+}
+
+func (s *AuthService) Authenticate(username, password string) (string, error) {
+	u, err := s.db.GetUserByUsername(username)
+	if err != nil {
+		return "", errors.New("invalid username or password")
+	}
+
+	if err := bcrypt.CompareHashAndPassword([]byte(u.PasswordHash), []byte(password)); err != nil {
+		return "", errors.New("invalid username or password")
+	}
+
+	claims := Claims{
+		UserID:   u.ID,
+		Username: u.Username,
+		RegisteredClaims: jwt.RegisteredClaims{
+			ExpiresAt: jwt.NewNumericDate(time.Now().Add(30 * 24 * time.Hour)),
+			IssuedAt:  jwt.NewNumericDate(time.Now()),
+			Issuer:    "rsspipe",
+		},
+	}
+
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
+	tokenString, err := token.SignedString([]byte(s.config.JWTSecret))
+	if err != nil {
+		return "", fmt.Errorf("failed to sign token: %w", err)
+	}
+
+	return tokenString, nil
+}
+
+func (s *AuthService) ValidateToken(tokenString string) (*Claims, error) {
+	token, err := jwt.ParseWithClaims(tokenString, &Claims{}, func(token *jwt.Token) (interface{}, error) {
+		if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
+			return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"])
+		}
+		return []byte(s.config.JWTSecret), nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	if claims, ok := token.Claims.(*Claims); ok && token.Valid {
+		return claims, nil
+	}
+
+	return nil, errors.New("invalid token")
+}
+
+func (s *AuthService) Middleware(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		var tokenStr string
+
+		// 1. Check Authorization header
+		authHeader := r.Header.Get("Authorization")
+		if authHeader != "" {
+			parts := strings.Split(authHeader, " ")
+			if len(parts) == 2 && strings.ToLower(parts[0]) == "bearer" {
+				tokenStr = parts[1]
+			}
+		}
+
+		// 2. Check Cookie
+		if tokenStr == "" {
+			if cookie, err := r.Cookie("rsspipe_token"); err == nil {
+				tokenStr = cookie.Value
+			}
+		}
+
+		if tokenStr == "" {
+			http.Error(w, `{"error":"unauthorized"}`, http.StatusUnauthorized)
+			return
+		}
+
+		claims, err := s.ValidateToken(tokenStr)
+		if err != nil {
+			http.Error(w, `{"error":"unauthorized"}`, http.StatusUnauthorized)
+			return
+		}
+
+		ctx := context.WithValue(r.Context(), UserContextKey, claims)
+		next.ServeHTTP(w, r.WithContext(ctx))
+	})
+}