首次推送

2026-07-27 00:00:27 +08:00
commit d6ef302b8c
28 changed files with 4760 additions and 0 deletions
@@ -0,0 +1,142 @@
+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 jwtSecretCache []byte
+
+func getJwtSecret() []byte {
+	if len(jwtSecretCache) > 0 {
+		return jwtSecretCache
+	}
+	secret, err := GetJwtSecret()
+	if err != nil {
+		log.Fatal("❌ 获取 JWT 密钥失败:", err)
+	}
+	jwtSecretCache = []byte(secret)
+	return jwtSecretCache
+}
+
+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(getJwtSecret())
+}
+
+func ParseJWT(tokenString string) (*Claims, error) {
+	token, err := jwt.ParseWithClaims(tokenString, &Claims{}, func(token *jwt.Token) (interface{}, error) {
+		return getJwtSecret(), 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 ValidatePassword(pwd string) bool {
+	if len(pwd) < 8 {
+		return false
+	}
+	var hasUpper, hasLower, hasDigit, hasSpecial bool
+	for _, ch := range pwd {
+		if ch >= 'A' && ch <= 'Z' {
+			hasUpper = true
+		} else if ch >= 'a' && ch <= 'z' {
+			hasLower = true
+		} else if ch >= '0' && ch <= '9' {
+			hasDigit = true
+		} else if strings.ContainsAny(string(ch), "!@#$%^&*()_+-=[]{}|;:,.<>?") {
+			hasSpecial = true
+		}
+	}
+	return hasUpper && hasLower && hasDigit && hasSpecial
+}
+
+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8位，含大小写、数字、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8位，包含大小写字母、数字和特殊字符")
+		}
+	}
+}
+
+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
+		}
+		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
+		}
+		claims, err := ParseJWT(parts[1])
+		if err != nil {
+			c.JSON(http.StatusUnauthorized, gin.H{"code": 1, "msg": "无效的认证令牌"})
+			c.Abort()
+			return
+		}
+		c.Set("username", claims.Username)
+		c.Next()
+	}
+}