添加登录功能

Apimanager_backend/Services/IUserService.cs

@@ -0,0 +1,84 @@
+using Apimanager_backend.Dtos;
+using Apimanager_backend.Models;
+using System.Runtime.CompilerServices;
+
+namespace Apimanager_backend.Services
+{
+    public interface IUserService
+    {
+         /// <summary>
+    /// 登录用户，根据用户名和密码进行身份验证。
+    /// </summary>
+    /// <param name="username">用户名</param>
+    /// <param name="password">密码</param>
+    /// <returns>包含用户信息的 <see cref="UserInfoDto"/></returns>
+    Task<UserInfoDto> LoginAsync(string username, string password);
+
+    /// <summary>
+    /// 发送密码重置邮件到指定邮箱。
+    /// </summary>
+    /// <param name="email">用户注册的邮箱地址</param>
+    /// <returns>异步操作</returns>
+    Task SendResetPasswordEmailAsync(string email);
+
+    /// <summary>
+    /// 重置用户密码，验证重置令牌的有效性并更新密码。
+    /// </summary>
+    /// <param name="email">用户邮箱地址</param>
+    /// <param name="token">重置密码的令牌</param>
+    /// <param name="newPassword">新的密码</param>
+    /// <returns>异步操作</returns>
+    Task ResetPasswordAsync(string email, string token, string newPassword);
+
+    /// <summary>
+    /// 获取用户信息。
+    /// </summary>
+    /// <param name="username">用户名</param>
+    /// <returns>包含用户信息的 <see cref="UserInfoDto"/></returns>
+    Task<UserInfoDto> GetUserAsync(string username);
+
+    /// <summary>
+    /// 更新用户信息。
+    /// </summary>
+    /// <param name="user">包含更新信息的 <see cref="UpdateUserDto"/></param>
+    /// <returns>更新后的 <see cref="UserInfoDto"/></returns>
+    Task<UserInfoDto> UpdateUserAsync(UpdateUserDto user);
+
+    /// <summary>
+    /// 删除指定的用户。
+    /// </summary>
+    /// <param name="username">要删除的用户名</param>
+    /// <returns>异步操作</returns>
+    Task DeleteUserAsync(string username);
+
+    /// <summary>
+    /// 创建新用户。
+    /// </summary>
+    /// <param name="user">包含新用户信息的 <see cref="CreateUserDto"/></param>
+    /// <returns>创建成功的用户信息 <see cref="UserInfoDto"/></returns>
+    Task<UserInfoDto> CreateUserAsync(CreateUserDto user);
+
+    /// <summary>
+    /// 禁用用户，使其无法登录。
+    /// </summary>
+    /// <param name="username">要禁用的用户名</param>
+    /// <returns>异步操作</returns>
+    Task BanUserAsync(string username);
+
+    /// <summary>
+    /// 取消禁用用户，恢复登录权限。
+    /// </summary>
+    /// <param name="username">要取消禁用的用户名</param>
+    /// <returns>异步操作</returns>
+    Task UnbanUserAsync(string username);
+
+    /// <summary>
+    /// 获取分页的用户列表。
+    /// </summary>
+    /// <param name="page">要获取的页码，从1开始</param>
+    /// <param name="pageSize">每页的用户数量</param>
+    /// <param name="desc">是否按降序排序</param>
+    /// <returns>包含用户信息的 <see cref="List{UserInfoDto}"/></returns>
+    Task<List<UserInfoDto>> GetUsersAsync(int page, int pageSize, bool desc);
+    }
+}

Apimanager_backend/Services/UserService.cs

@@ -0,0 +1,89 @@
+using Apimanager_backend.Config;
+using Apimanager_backend.Data;
+using Apimanager_backend.Dtos;
+using Apimanager_backend.Exceptions;
+using Apimanager_backend.Models;
+using AutoMapper;
+using Microsoft.AspNetCore.Connections.Features;
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel;
+
+namespace Apimanager_backend.Services
+{
+    public class UserService : IUserService
+    {
+        private readonly ApiContext apiContext;
+        private readonly IMapper mapper;
+        public UserService(ApiContext apiContext,IMapper automapper)
+        {
+            this.apiContext = apiContext;
+            this.mapper = automapper;
+        }
+        public Task BanUserAsync(string username)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<UserInfoDto> CreateUserAsync(CreateUserDto user)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task DeleteUserAsync(string username)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<UserInfoDto> GetUserAsync(string username)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<List<UserInfoDto>> GetUsersAsync(int page, int pageSize, bool desc)
+        {
+            throw new NotImplementedException();
+        }
+
+        public async Task<UserInfoDto> LoginAsync(string username, string password)
+        {
+            //查找用户
+            User? user = await apiContext.Users.SingleOrDefaultAsync(x => 
+                x.Username == username && x.PassHash == password
+            );
+
+            //用户不存在或密码错误都为登录失败
+            if(user == null)
+            {
+                throw new BaseException(2001, "Invalid username or password");
+            }
+
+            //用户被禁用
+            if (user.IsBan)
+            {
+                throw new BaseException(2002, "User account is disabled");
+            }
+
+            return mapper.Map<UserInfoDto>(user);
+        }
+
+        public Task ResetPasswordAsync(string email, string token, string newPassword)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task SendResetPasswordEmailAsync(string email)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task UnbanUserAsync(string username)
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task<UserInfoDto> UpdateUserAsync(UpdateUserDto user)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}