Initial commit

2026-06-08 08:59:36 +08:00 · 2025-05-18 20:48:20 +08:00
commit cde2c7b997
79 changed files with 5713 additions and 0 deletions
--- a/Services/UserService.cs
+++ b/Services/UserService.cs
@@ -0,0 +1,139 @@
+using System.IdentityModel.Tokens.Jwt;
+using System.Security.Claims;
+using System.Text;
+using Foxel.Models.DataBase;
+using Foxel.Services.Interface;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.IdentityModel.Tokens;
+using Foxel.Models.Request;
+using Foxel.Models.Request.Auth;
+using static Foxel.Utils.AuthHelper;
+
+namespace Foxel.Services;
+
+public class UserService(IDbContextFactory<MyDbContext> dbContextFactory, IConfigService configuration)
+    : IUserService
+{
+    public async Task<(bool success, string message, User? user)> RegisterUserAsync(RegisterRequest request)
+    {
+        await using var context = await dbContextFactory.CreateDbContextAsync();
+        var existingUser = await context.Users.FirstOrDefaultAsync(u => u.Email == request.Email);
+        if (existingUser != null)
+        {
+            return (false, "该邮箱已被注册", null);
+        }
+
+        existingUser = await context.Users.FirstOrDefaultAsync(u => u.UserName == request.UserName);
+        if (existingUser != null)
+        {
+            return (false, "该用户名已被使用", null);
+        }
+
+        var user = new User
+        {
+            UserName = request.UserName,
+            Email = request.Email,
+            PasswordHash = HashPassword(request.Password),
+            CreatedAt = DateTime.UtcNow,
+            UpdatedAt = DateTime.UtcNow
+        };
+        context.Users.Add(user);
+        await context.SaveChangesAsync();
+        return (true, "用户注册成功", user);
+    }
+
+    public async Task<(bool success, string message, User? user)> AuthenticateUserAsync(LoginRequest request)
+    {
+        await using var context = await dbContextFactory.CreateDbContextAsync();
+        var user = await context.Users.Include(x => x.Role).FirstOrDefaultAsync(u => u.Email == request.Email);
+
+        if (user == null)
+        {
+            return (false, "用户不存在", null);
+        }
+
+        if (!VerifyPassword(request.Password, user.PasswordHash))
+        {
+            return (false, "密码错误", null);
+        }
+
+        return (true, "登录成功", user);
+    }
+
+    public Task<string> GenerateJwtTokenAsync(User user)
+    {
+        var claims = new List<Claim>
+        {
+            new(ClaimTypes.NameIdentifier, user.Id.ToString()),
+            new(ClaimTypes.Email, user.Email),
+            new(ClaimTypes.Name, user.UserName)
+        };
+        if (user.Role != null)
+        {
+            claims.Add(new Claim(ClaimTypes.Role, user.Role.Name));
+        }
+
+        var key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(configuration["Jwt:SecretKey"] ??
+                                                                  throw new InvalidOperationException(
+                                                                      "JWT Secret key not found")));
+        var creds = new SigningCredentials(key, SecurityAlgorithms.HmacSha256);
+        var expires = DateTime.UtcNow.AddYears(1);
+        var token = new JwtSecurityToken(
+            issuer: configuration["Jwt:Issuer"],
+            audience: configuration["Jwt:Audience"],
+            claims: claims,
+            expires: expires,
+            signingCredentials: creds
+        );
+
+        var tokenString = new JwtSecurityTokenHandler().WriteToken(token);
+        return Task.FromResult(tokenString);
+    }
+
+    public async Task<User?> GetUserByIdAsync(int userId)
+    {
+        await using var context = await dbContextFactory.CreateDbContextAsync();
+        return await context.Users.Include(x => x.Role).FirstOrDefaultAsync(u => u.Id == userId);
+    }
+
+    public async Task<(bool success, string message, User? user)> FindOrCreateGitHubUserAsync(
+        string githubId, string githubLogin, string? email)
+    {
+        if (string.IsNullOrEmpty(email))
+        {
+            return (false, "GitHub账号未提供邮箱地址", null);
+        }
+
+        await using var context = await dbContextFactory.CreateDbContextAsync();
+
+        // 先尝试通过邮箱查找用户
+        var user = await context.Users.FirstOrDefaultAsync(u => u.Email == email);
+
+        if (user == null)
+        {
+            // 用户不存在，创建新用户
+            user = new User
+            {
+                UserName = $"{githubLogin}_{githubId.Substring(0, 5)}", // 创建唯一用户名
+                Email = email,
+                PasswordHash = HashPassword(Guid.NewGuid().ToString()), 
+                GithubId = githubId,
+                CreatedAt = DateTime.UtcNow,
+                UpdatedAt = DateTime.UtcNow
+            };
+            context.Users.Add(user);
+            await context.SaveChangesAsync();
+            return (true, "GitHub用户注册成功", user);
+        }
+        else
+        {
+            if (string.IsNullOrEmpty(user.GithubId))
+            {
+                user.GithubId = githubId;
+                user.UpdatedAt = DateTime.UtcNow;
+                await context.SaveChangesAsync();
+            }
+            return (true, "GitHub用户登录成功", user);
+        }
+    }
+}