474 lines
14 KiB
C#
474 lines
14 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using UnityEngine;
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/// <summary>
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/// 持久化认证服务
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/// 将用户数据保存到本地JSON文件，支持运行时增删改查
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/// 使用 persistentDataPath 确保跨平台兼容性，特别是Android系统
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/// </summary>
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public class PersistentAuthenticationService : IAuthenticationService
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{
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private readonly string _dataFilePath;
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private UserDatabase _userDatabase;
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private const string DATA_FILE_NAME = "users.json";
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private const int MAX_USER_COUNT = 10; // 最大用户数量限制
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public bool IsLoggedIn { get; private set; }
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public string CurrentUsername { get; private set; }
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public UserRole CurrentRole { get; private set; }
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public CurrentUser CurrentUser { get; private set; }
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public PersistentAuthenticationService()
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{
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// 使用 persistentDataPath 而不是 streamingAssetsPath
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// persistentDataPath 在所有平台上都是可读写的，包括 Android
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_dataFilePath = Path.Combine(Application.persistentDataPath, DATA_FILE_NAME);
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LoadUserDatabase();
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Debug.Log($"用户数据存储路径: {_dataFilePath}");
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}
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public bool Login(string username, string password, out UserRole role)
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{
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role = UserRole.User;
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if (string.IsNullOrEmpty(username) || string.IsNullOrEmpty(password))
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{
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return false;
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}
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var user = _userDatabase.FindUser(username);
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if (user != null && user.Password == password)
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{
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IsLoggedIn = true;
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CurrentUsername = username;
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CurrentRole = user.Role;
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CurrentUser = new CurrentUser { Username = username, Role = user.Role };
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role = user.Role;
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// 更新最后登录时间
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user.LastLoginTime = DateTime.Now;
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SaveUserDatabase();
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// 记录登录日志
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var logService = ServiceLocator.Get<UserLogService>();
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logService?.LogUserOperation(username, "用户登录", $"角色: {user.Role}", true);
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Debug.Log($"用户 {username} 登录成功，角色: {user.Role}");
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return true;
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}
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// 记录登录失败日志
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var logServiceFailed = ServiceLocator.Get<UserLogService>();
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logServiceFailed?.LogUserOperation(username, "用户登录", "密码错误或用户不存在", false);
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IsLoggedIn = false;
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CurrentUsername = null;
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CurrentRole = UserRole.User;
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CurrentUser = null;
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return false;
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}
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public void Logout()
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{
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// 记录登出日志
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if (!string.IsNullOrEmpty(CurrentUsername))
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{
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var logService = ServiceLocator.Get<UserLogService>();
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logService?.LogUserOperation(CurrentUsername, "用户登出", "正常登出", true);
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}
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Debug.Log($"用户 {CurrentUsername} 登出");
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IsLoggedIn = false;
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CurrentUsername = null;
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CurrentRole = UserRole.User;
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CurrentUser = null;
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}
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/// <summary>
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/// 添加新用户
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/// </summary>
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public bool AddUser(string username, string password, UserRole role)
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{
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if (string.IsNullOrEmpty(username) || string.IsNullOrEmpty(password))
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{
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Debug.LogError("用户名和密码不能为空");
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return false;
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}
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// 检查用户数量限制
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if (_userDatabase.Users.Count >= MAX_USER_COUNT)
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{
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Debug.LogError($"用户数量已达到上限({MAX_USER_COUNT}个)，无法添加新用户");
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return false;
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}
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// 验证用户名格式(只允许字母、数字和下划线，区分大小写)
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if (!IsValidUsername(username))
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{
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Debug.LogError("用户名只能包含字母、数字和下划线，不允许特殊字符");
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return false;
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}
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// 检查用户是否已存在（区分大小写）
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if (_userDatabase.FindUser(username) != null)
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{
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Debug.LogError($"用户 {username} 已存在");
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return false;
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}
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var newUser = new UserInfo
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{
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Username = username,
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Password = password,
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Role = role,
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CreatedTime = DateTime.Now,
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IsActive = true
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};
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_userDatabase.Users.Add(newUser);
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SaveUserDatabase();
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// 记录添加用户日志
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var logService = ServiceLocator.Get<UserLogService>();
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logService?.LogUserOperation(CurrentUsername ?? "system", "添加用户",
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$"新用户: {username}, 角色: {role}", true);
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Debug.Log($"成功添加用户 {username}，角色: {role}");
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return true;
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}
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/// <summary>
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/// 删除用户
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/// </summary>
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public bool RemoveUser(string username)
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{
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if (string.IsNullOrEmpty(username))
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{
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return false;
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}
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// 不能删除admin用户(区分大小写)
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if (username == "admin")
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{
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Debug.LogError("不能删除管理员账户");
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return false;
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}
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// 不能删除当前登录用户(区分大小写)
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if (username == CurrentUsername)
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{
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Debug.LogError("不能删除当前登录用户");
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return false;
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}
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var user = _userDatabase.FindUser(username);
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if (user != null)
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{
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_userDatabase.Users.Remove(user);
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SaveUserDatabase();
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// 记录删除用户日志
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var logService = ServiceLocator.Get<UserLogService>();
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logService?.LogUserOperation(CurrentUsername ?? "system", "删除用户",
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$"删除用户: {username}, 角色: {user.Role}", true);
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Debug.Log($"成功删除用户 {username}");
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return true;
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}
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Debug.LogError($"用户 {username} 不存在");
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return false;
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}
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/// <summary>
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/// 修改用户密码 - 支持管理员重置和用户自改密码
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/// </summary>
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public bool ChangePassword(string username, string oldPassword, string newPassword)
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{
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if (string.IsNullOrEmpty(username) || string.IsNullOrEmpty(newPassword))
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{
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Debug.LogError("用户名和新密码不能为空");
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return false;
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}
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var user = _userDatabase.FindUser(username);
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if (user == null)
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{
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Debug.LogError($"用户 {username} 不存在");
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return false;
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}
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// 检查操作权限(区分大小写)
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bool isAdmin = CurrentRole == UserRole.Admin;
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bool isSelfChange = username == CurrentUsername;
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// 如果是管理员操作且不是修改自己的密码，可以跳过旧密码验证
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if (isAdmin && !isSelfChange)
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{
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user.Password = newPassword;
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user.PasswordChangedTime = DateTime.Now;
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SaveUserDatabase();
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// 记录管理员重置密码日志
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var logService = ServiceLocator.Get<UserLogService>();
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logService?.LogUserOperation(CurrentUsername, "重置用户密码",
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$"管理员重置用户 {username} 的密码", true);
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Debug.Log($"管理员重置用户 {username} 密码成功");
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return true;
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}
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// 其他情况需要验证旧密码
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if (string.IsNullOrEmpty(oldPassword))
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{
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Debug.LogError("修改密码需要提供旧密码");
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return false;
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}
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if (user.Password != oldPassword)
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{
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Debug.LogError("旧密码错误");
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return false;
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}
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user.Password = newPassword;
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user.PasswordChangedTime = DateTime.Now;
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SaveUserDatabase();
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// 记录修改密码日志
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var logService2 = ServiceLocator.Get<UserLogService>();
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logService2?.LogUserOperation(username, "修改密码",
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isSelfChange ? "用户修改自己的密码" : $"修改用户 {username} 的密码", true);
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Debug.Log($"用户 {username} 密码修改成功");
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return true;
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}
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/// <summary>
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/// 获取所有用户信息（不包含密码）
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/// </summary>
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public List<UserInfo> GetAllUsers()
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{
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var result = new List<UserInfo>();
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foreach (var user in _userDatabase.Users)
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{
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result.Add(new UserInfo
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{
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Username = user.Username,
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Role = user.Role,
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CreatedTime = user.CreatedTime,
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LastLoginTime = user.LastLoginTime,
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IsActive = user.IsActive
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// 不返回密码信息
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});
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}
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return result;
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}
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/// <summary>
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/// 加载用户数据库
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/// </summary>
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private void LoadUserDatabase()
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{
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try
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{
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if (File.Exists(_dataFilePath))
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{
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string json = File.ReadAllText(_dataFilePath);
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_userDatabase = JsonUtility.FromJson<UserDatabase>(json);
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if (_userDatabase == null || _userDatabase.Users == null)
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{
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Debug.LogWarning("用户数据库格式错误，创建新的数据库");
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CreateDefaultUserDatabase();
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}
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else
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{
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Debug.Log($"成功加载用户数据库，共 {_userDatabase.Users.Count} 个用户");
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}
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}
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else
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{
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// 创建默认用户数据库
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CreateDefaultUserDatabase();
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}
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}
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catch (Exception ex)
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{
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Debug.LogError($"加载用户数据库失败: {ex.Message}");
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CreateDefaultUserDatabase();
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}
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// 确保数据库不为空
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if (_userDatabase == null)
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{
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CreateDefaultUserDatabase();
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}
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}
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public bool ValidCurrentPassword(string password)
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{
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if (CurrentUser != null && CurrentUser.Username != null)
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{
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var user = _userDatabase.FindUser(CurrentUser.Username);
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if (user != null && user.Password == password)
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{
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Debug.Log("当前密码验证成功");
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return true;
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}
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}
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Debug.Log("当前密码验证失败");
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return false;
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}
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/// <summary>
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/// 保存用户数据库
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/// </summary>
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private void SaveUserDatabase()
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{
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try
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{
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// 确保目录存在（persistentDataPath 通常已存在，但为了安全起见还是检查一下）
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string directory = Path.GetDirectoryName(_dataFilePath);
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if (!Directory.Exists(directory))
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{
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Directory.CreateDirectory(directory);
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}
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string json = JsonUtility.ToJson(_userDatabase, true);
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File.WriteAllText(_dataFilePath, json);
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Debug.Log($"用户数据库保存成功到: {_dataFilePath}");
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}
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catch (Exception ex)
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{
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Debug.LogError($"保存用户数据库失败: {ex.Message}");
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}
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}
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/// <summary>
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/// 创建默认用户数据库
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/// </summary>
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private void CreateDefaultUserDatabase()
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{
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_userDatabase = new UserDatabase
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{
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Version = "1.0",
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Users = new List<UserInfo>
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{
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new UserInfo
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{
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Username = "admin",
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Password = "admin",
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Role = UserRole.Admin,
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CreatedTime = DateTime.Now,
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IsActive = true
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},
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new UserInfo
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{
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Username = "user",
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Password = "123456",
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Role = UserRole.User,
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CreatedTime = DateTime.Now,
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IsActive = true
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}
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}
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};
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SaveUserDatabase();
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Debug.Log("创建默认用户数据库");
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}
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/// <summary>
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/// 验证用户名格式
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/// 只允许字母、数字和下划线，长度3-20个字符
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/// </summary>
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private bool IsValidUsername(string username)
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{
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if (string.IsNullOrEmpty(username))
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return false;
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// 长度限制
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if (username.Length < 3 || username.Length > 20)
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{
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Debug.LogError("用户名长度必须在3-20个字符之间");
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return false;
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}
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// 只允许字母、数字和下划线
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foreach (char c in username)
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{
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if (!char.IsLetterOrDigit(c) && c != '_')
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{
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return false;
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}
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}
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return true;
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}
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/// <summary>
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/// 获取当前用户数量
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/// </summary>
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public int GetUserCount()
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{
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return _userDatabase?.Users?.Count ?? 0;
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}
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/// <summary>
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/// 获取最大用户数量限制
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/// </summary>
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public int GetMaxUserCount()
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{
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return MAX_USER_COUNT;
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}
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/// <summary>
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/// 获取数据文件路径（用于调试）
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/// </summary>
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public string GetDataFilePath()
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{
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return _dataFilePath;
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}
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}
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// /// <summary>
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// /// 用户数据库结构
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// /// </summary>
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// [System.Serializable]
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// public class UserDatabase
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// {
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// public string Version = "1.0";
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// public List<UserInfo> Users = new List<UserInfo>();
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// public UserInfo FindUser(string username)
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// {
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// return Users.Find(u => u.Username.Equals(username, StringComparison.OrdinalIgnoreCase) && u.IsActive);
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// }
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// }
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// /// <summary>
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// /// 用户信息扩展
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// /// </summary>
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// [System.Serializable]
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// public class UserInfo
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// {
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// public string Username;
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// public string Password;
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// public UserRole Role;
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// public DateTime CreatedTime;
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// public DateTime LastLoginTime;
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// public DateTime PasswordChangedTime;
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// public bool IsActive = true;
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// }
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// public class UseLogEvent
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// {
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// public int Id;
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// public string OperationContentText;
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// public DateTime Time;
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// public string Account;
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// } |