150 lines
4.4 KiB
Go
150 lines
4.4 KiB
Go
package user
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import (
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"net/http"
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"time"
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"git.huangwc.com/pig/pig-farm-controller/internal/app/controller"
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"git.huangwc.com/pig/pig-farm-controller/internal/infra/logs"
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"git.huangwc.com/pig/pig-farm-controller/internal/infra/models"
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"git.huangwc.com/pig/pig-farm-controller/internal/infra/repository"
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"github.com/gin-gonic/gin"
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"github.com/golang-jwt/jwt/v5"
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"gorm.io/gorm"
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)
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// jwtSecret 是用于签名 JWT 的密钥。在生产环境中,这应该从环境变量或安全配置中读取。
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var jwtSecret = []byte("your_super_secret_jwt_key")
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// Controller 用户控制器
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type Controller struct {
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userRepo repository.UserRepository
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logger *logs.Logger
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}
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// NewController 创建用户控制器实例
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func NewController(userRepo repository.UserRepository, logger *logs.Logger) *Controller {
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return &Controller{
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userRepo: userRepo,
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logger: logger,
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}
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}
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// CreateUserRequest 定义创建用户请求的结构体
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type CreateUserRequest struct {
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Username string `json:"username" binding:"required"`
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Password string `json:"password" binding:"required,min=6"`
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}
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// LoginRequest 定义登录请求的结构体
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type LoginRequest struct {
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Username string `json:"username" binding:"required"`
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Password string `json:"password" binding:"required"`
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}
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// CreateUserResponse 定义创建用户成功响应的结构体
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type CreateUserResponse struct {
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Username string `json:"username"`
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ID uint `json:"id"`
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}
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// LoginResponse 定义登录成功响应的结构体
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type LoginResponse struct {
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Username string `json:"username"`
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ID uint `json:"id"`
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Token string `json:"token"`
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}
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// generateToken 为给定用户生成 JWT
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func generateToken(userID uint, username string) (string, error) {
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expirationTime := time.Now().Add(24 * time.Hour) // Token 24 小时后过期
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claims := jwt.MapClaims{
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"user_id": userID,
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"username": username,
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"exp": expirationTime.Unix(),
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}
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
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tokenString, err := token.SignedString(jwtSecret)
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if err != nil {
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return "", err
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}
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return tokenString, nil
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}
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// CreateUser 处理创建用户的请求
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func (c *Controller) CreateUser(ctx *gin.Context) {
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var req CreateUserRequest
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if err := ctx.ShouldBindJSON(&req); err != nil {
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c.logger.Errorf("CreateUser: 参数绑定失败: %v", err)
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controller.SendErrorResponse(ctx, http.StatusBadRequest, err.Error())
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return
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}
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user := &models.User{
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Username: req.Username,
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Password: req.Password, // 密码会在 BeforeSave 钩子中哈希
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}
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if err := c.userRepo.Create(user); err != nil {
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c.logger.Errorf("CreateUser: 创建用户失败: %v", err)
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// 尝试查询用户,以判断是否是用户名重复导致的错误
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_, findErr := c.userRepo.FindByUsername(req.Username)
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if findErr == nil { // 如果能找到用户,说明是用户名重复
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controller.SendErrorResponse(ctx, http.StatusConflict, "用户名已存在")
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return
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}
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// 其他创建失败的情况
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controller.SendErrorResponse(ctx, http.StatusInternalServerError, "创建用户失败")
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return
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}
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controller.SendResponse(ctx, http.StatusOK, "用户创建成功", CreateUserResponse{
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Username: user.Username,
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ID: user.ID,
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})
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}
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// Login 处理用户登录请求
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func (c *Controller) Login(ctx *gin.Context) {
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var req LoginRequest
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if err := ctx.ShouldBindJSON(&req); err != nil {
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c.logger.Errorf("Login: 参数绑定失败: %v", err)
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controller.SendErrorResponse(ctx, http.StatusBadRequest, err.Error())
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return
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}
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user, err := c.userRepo.FindByUsername(req.Username)
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if err != nil {
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if err == gorm.ErrRecordNotFound {
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controller.SendErrorResponse(ctx, http.StatusUnauthorized, "用户名或密码不正确")
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return
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}
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c.logger.Errorf("Login: 查询用户失败: %v", err)
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controller.SendErrorResponse(ctx, http.StatusInternalServerError, "登录失败")
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return
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}
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if !user.CheckPassword(req.Password) {
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controller.SendErrorResponse(ctx, http.StatusUnauthorized, "用户名或密码不正确")
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return
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}
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// 登录成功,生成 JWT token
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tokenString, err := generateToken(user.ID, user.Username)
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if err != nil {
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c.logger.Errorf("Login: 生成 token 失败: %v", err)
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controller.SendErrorResponse(ctx, http.StatusInternalServerError, "登录失败,无法生成认证信息")
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return
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}
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controller.SendResponse(ctx, http.StatusOK, "登录成功", LoginResponse{
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Username: user.Username,
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ID: user.ID,
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Token: tokenString,
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})
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}
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