Initial commit

internal/api/admin/auth.go

@@ -0,0 +1,70 @@
+package admin
+
+import (
+	"FileRelay/internal/auth"
+	"FileRelay/internal/config"
+	"FileRelay/internal/model"
+	"log/slog"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"golang.org/x/crypto/bcrypt"
+)
+
+type AuthHandler struct{}
+
+func NewAuthHandler() *AuthHandler {
+	return &AuthHandler{}
+}
+
+type LoginRequest struct {
+	Password string `json:"password" binding:"required" example:"admin"`
+}
+
+type LoginResponse struct {
+	Token string `json:"token"`
+}
+
+// Login 管理员登录
+// @Summary      管理员登录
+// @Description  通过密码换取 JWT Token
+// @Tags         Admin
+// @Accept       json
+// @Produce      json
+// @Param        request body LoginRequest true "登录请求"
+// @Success      200  {object}  model.Response{data=LoginResponse}
+// @Failure      401  {object}  model.Response
+// @Router       /api/admin/login [post]
+func (h *AuthHandler) Login(c *gin.Context) {
+	var req LoginRequest
+
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, model.ErrorResponse(model.CodeBadRequest, "Invalid request"))
+		return
+	}
+
+	passwordHash := config.GlobalConfig.Security.AdminPasswordHash
+	if passwordHash == "" {
+		c.JSON(http.StatusInternalServerError, model.ErrorResponse(model.CodeInternalError, "Admin password hash not configured"))
+		return
+	}
+
+	if err := bcrypt.CompareHashAndPassword([]byte(passwordHash), []byte(req.Password)); err != nil {
+		slog.Warn("Failed admin login attempt", "ip", c.ClientIP())
+		c.JSON(http.StatusUnauthorized, model.ErrorResponse(model.CodeUnauthorized, "Incorrect password"))
+		return
+	}
+
+	// 使用固定 ID 1 代表管理员（因为不再有数据库记录）
+	token, err := auth.GenerateToken(1)
+	if err != nil {
+		slog.Error("Failed to generate admin token", "error", err)
+		c.JSON(http.StatusInternalServerError, model.ErrorResponse(model.CodeInternalError, "Failed to generate token"))
+		return
+	}
+
+	slog.Info("Admin logged in", "ip", c.ClientIP())
+	c.JSON(http.StatusOK, model.SuccessResponse(LoginResponse{
+		Token: token,
+	}))
+}