71 lines
2.7 KiB
C#
71 lines
2.7 KiB
C#
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using Microsoft.EntityFrameworkCore;
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using Microsoft.IdentityModel.Tokens;
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using SiteManagementSystem_SoftwareEngineering_.Entity;
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using SiteManagementSystem_SoftwareEngineering_.Interface;
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using System.Security.Cryptography;
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using System.Text;
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namespace SiteManagementSystem_SoftwareEngineering_.Service
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{
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public enum IdentityPolicyNames
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{
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NotSupport,
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CommonUser,
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Administrator
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}
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public class UserManagerService
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{
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public class UserManageService(
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SQLService storageService,
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ILogger<UserManageService> logger,
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string secretSalt
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) : IUserManageService
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{
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private readonly SQLService _storageService = storageService;
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private readonly ILogger<UserManageService> _logger = logger;
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private readonly string _salt = secretSalt;
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private static readonly object _lock = new();
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public void AddUser(User user)
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{
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if (user.Name is null)
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throw new ArgumentException("Miss Name!");
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if (user.RoleName is null)
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throw new ArgumentException("Miss PolicyName!");
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if (user.Role is IdentityPolicyNames.NotSupport)
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throw new ArgumentException("PolicyName not support");
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if (user.Secret is null)
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throw new ArgumentException("Miss Secret!");
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user.HashSecret = ComputeHash(user.Secret);
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if (_storageService.Users.Where(x => x.Name==user.Name).Any())
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throw new InvalidOperationException($"已存在名字为{user.Name}的用户");
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lock (_lock)
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{
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_storageService.Users.Add(user);
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_storageService.SaveChanges();
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}
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}
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public (bool, string) IsUserExist(ref User user)
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{
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string name = user.Name;
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var result = _storageService.Users.Where(x => x.Name == name);
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if (!result.Any())
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return (false, "账号不存在");
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if (result.First().HashSecret != ComputeHash(user.Secret))
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return (false, "密码不匹配");
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user = (User)result.First().Clone();
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return (true, "");
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}
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private string ComputeHash(string key)
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{
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if (key.IsNullOrEmpty())
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throw new ArgumentException("ComputeHash: Key is null or empty.");
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return Convert.ToBase64String(
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SHA256.HashData(Encoding.UTF8.GetBytes(_salt + key + _salt))
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);
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}
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}
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}
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}
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