基础框架先行，编译器已无报错，项目正式创建

2026-07-23 12:41:14 +08:00
parent 9e561e5ae6
commit 9118972a7a
12 changed files with 1004 additions and 0 deletions
@@ -0,0 +1,138 @@
+package main
+
+import (
+	"errors"
+	"fmt"
+	"log"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/golang-jwt/jwt/v5"
+	"golang.org/x/crypto/bcrypt"
+)
+
+var jwtSecret = []byte("frpc-console-secret-key-2024")
+
+type Claims struct {
+	Username string `json:"username"`
+	jwt.RegisteredClaims
+}
+
+func GenerateJWT(username string) (string, error) {
+	claims := Claims{
+		Username: username,
+		RegisteredClaims: jwt.RegisteredClaims{
+			ExpiresAt: jwt.NewNumericDate(time.Now().Add(7 * 24 * time.Hour)),
+			IssuedAt:  jwt.NewNumericDate(time.Now()),
+		},
+	}
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
+	return token.SignedString(jwtSecret)
+}
+
+func ParseJWT(tokenString string) (*Claims, error) {
+	token, err := jwt.ParseWithClaims(tokenString, &Claims{}, func(token *jwt.Token) (interface{}, error) {
+		return 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")
+}
+
+// 密码复杂度验证：至少3个大写 + 8个数字 + 1个特殊字符
+func ValidatePassword(pwd string) bool {
+	var upper, digit, special int
+	for _, ch := range pwd {
+		if ch >= 'A' && ch <= 'Z' {
+			upper++
+		}
+		if ch >= '0' && ch <= '9' {
+			digit++
+		}
+		if strings.ContainsAny(string(ch), "!@#$%^&*()_+-=[]{}|;:,.<>?") {
+			special++
+		}
+	}
+	return upper >= 3 && digit >= 8 && special >= 1 && len(pwd) >= 12
+}
+
+// 首次启动强制设置管理员账户
+func InitAdminUser() {
+	count, err := CountUsers()
+	if err != nil {
+		log.Fatal("❌ 检查用户表失败:", err)
+	}
+
+	if count > 0 {
+		log.Println("✅ 已存在管理员账户，跳过初始化")
+		return
+	}
+
+	log.Println("⚠️  首次启动，请设置管理员账户")
+	log.Print("用户名: ")
+	var username string
+	fmt.Scanln(&username)
+
+	if username == "" {
+		username = "admin"
+	}
+
+	for {
+		log.Print("密码 (至少3个大写+8个数字+1个特殊字符): ")
+		var password string
+		fmt.Scanln(&password)
+
+		if ValidatePassword(password) {
+			hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+			if err != nil {
+				log.Println("❌ 密码加密失败:", err)
+				continue
+			}
+			err = CreateUser(username, string(hash))
+			if err != nil {
+				log.Println("❌ 创建用户失败:", err)
+				continue
+			}
+			log.Println("✅ 管理员账户创建成功！")
+			break
+		} else {
+			log.Println("❌ 密码不符合复杂度要求，请重新输入")
+			log.Println("   要求: 至少3个大写字母 + 8个数字 + 1个特殊字符")
+		}
+	}
+}
+
+// JWT 认证中间件
+func AuthMiddleware() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		authHeader := c.GetHeader("Authorization")
+		if authHeader == "" {
+			c.JSON(http.StatusUnauthorized, gin.H{"code": 1, "msg": "未提供认证令牌"})
+			c.Abort()
+			return
+		}
+		// 格式 "Bearer <token>"
+		parts := strings.SplitN(authHeader, " ", 2)
+		if len(parts) != 2 || parts[0] != "Bearer" {
+			c.JSON(http.StatusUnauthorized, gin.H{"code": 1, "msg": "认证令牌格式错误"})
+			c.Abort()
+			return
+		}
+		tokenString := parts[1]
+		claims, err := ParseJWT(tokenString)
+		if err != nil {
+			c.JSON(http.StatusUnauthorized, gin.H{"code": 1, "msg": "无效的认证令牌"})
+			c.Abort()
+			return
+		}
+		// 将用户名存入上下文，方便后续使用
+		c.Set("username", claims.Username)
+		c.Next()
+	}
+}