diff options
Diffstat (limited to 'BackEnd/Timeline/Services/UserService.cs')
| -rw-r--r-- | BackEnd/Timeline/Services/UserService.cs | 220 |
1 files changed, 0 insertions, 220 deletions
diff --git a/BackEnd/Timeline/Services/UserService.cs b/BackEnd/Timeline/Services/UserService.cs deleted file mode 100644 index 288d208c..00000000 --- a/BackEnd/Timeline/Services/UserService.cs +++ /dev/null @@ -1,220 +0,0 @@ -using Microsoft.EntityFrameworkCore;
-using Microsoft.Extensions.Logging;
-using System;
-using System.Collections.Generic;
-using System.Globalization;
-using System.Linq;
-using System.Threading.Tasks;
-using Timeline.Entities;
-using Timeline.Helpers;
-using Timeline.Models.Validation;
-using Timeline.Services.Exceptions;
-using static Timeline.Resources.Services.UserService;
-
-namespace Timeline.Services
-{
- /// <summary>
- /// Null means not change.
- /// </summary>
- public class ModifyUserParams
- {
- public string? Username { get; set; }
- public string? Password { get; set; }
- public string? Nickname { get; set; }
- }
-
- public interface IUserService : IBasicUserService
- {
- /// <summary>
- /// Try to get a user by id.
- /// </summary>
- /// <param name="id">The id of the user.</param>
- /// <returns>The user info.</returns>
- /// <exception cref="UserNotExistException">Thrown when the user with given id does not exist.</exception>
- Task<UserEntity> GetUser(long id);
-
- /// <summary>
- /// List all users.
- /// </summary>
- /// <returns>The user info of users.</returns>
- Task<List<UserEntity>> GetUsers();
-
- /// <summary>
- /// Create a user with given info.
- /// </summary>
- /// <param name="username">The username of new user.</param>
- /// <param name="password">The password of new user.</param>
- /// <returns>The the new user.</returns>
- /// <exception cref="ArgumentNullException">Thrown when <paramref name="username"/> or <paramref name="password"/> is null.</exception>
- /// <exception cref="ArgumentException">Thrown when <paramref name="username"/> or <paramref name="password"/> is of bad format.</exception>
- /// <exception cref="EntityAlreadyExistException">Thrown when a user with given username already exists.</exception>
- Task<UserEntity> CreateUser(string username, string password);
-
- /// <summary>
- /// Modify a user.
- /// </summary>
- /// <param name="id">The id of the user.</param>
- /// <param name="param">The new information.</param>
- /// <returns>The new user info.</returns>
- /// <exception cref="ArgumentException">Thrown when some fields in <paramref name="param"/> is bad.</exception>
- /// <exception cref="UserNotExistException">Thrown when user with given id does not exist.</exception>
- /// <remarks>
- /// Version will increase if password is changed.
- /// </remarks>
- Task<UserEntity> ModifyUser(long id, ModifyUserParams? param);
- }
-
- public class UserService : BasicUserService, IUserService
- {
- private readonly ILogger<UserService> _logger;
- private readonly IClock _clock;
-
- private readonly DatabaseContext _databaseContext;
-
- private readonly IPasswordService _passwordService;
-
- private readonly UsernameValidator _usernameValidator = new UsernameValidator();
- private readonly NicknameValidator _nicknameValidator = new NicknameValidator();
-
- public UserService(ILogger<UserService> logger, DatabaseContext databaseContext, IPasswordService passwordService, IClock clock) : base(databaseContext)
- {
- _logger = logger;
- _databaseContext = databaseContext;
- _passwordService = passwordService;
- _clock = clock;
- }
-
- private void CheckUsernameFormat(string username, string? paramName)
- {
- if (!_usernameValidator.Validate(username, out var message))
- {
- throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, ExceptionUsernameBadFormat, message), paramName);
- }
- }
-
- private static void CheckPasswordFormat(string password, string? paramName)
- {
- if (password.Length == 0)
- {
- throw new ArgumentException(ExceptionPasswordEmpty, paramName);
- }
- }
-
- private void CheckNicknameFormat(string nickname, string? paramName)
- {
- if (!_nicknameValidator.Validate(nickname, out var message))
- {
- throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, ExceptionNicknameBadFormat, message), paramName);
- }
- }
-
- private static void ThrowUsernameConflict()
- {
- throw new EntityAlreadyExistException(EntityNames.User, ExceptionUsernameConflict);
- }
-
- public async Task<UserEntity> GetUser(long id)
- {
- var user = await _databaseContext.Users.Where(u => u.Id == id).SingleOrDefaultAsync();
-
- if (user == null)
- throw new UserNotExistException(id);
-
- return user;
- }
-
- public async Task<List<UserEntity>> GetUsers()
- {
- return await _databaseContext.Users.ToListAsync();
- }
-
- public async Task<UserEntity> CreateUser(string username, string password)
- {
- if (username == null)
- throw new ArgumentNullException(nameof(username));
- if (password == null)
- throw new ArgumentNullException(nameof(password));
-
- CheckUsernameFormat(username, nameof(username));
- CheckPasswordFormat(password, nameof(password));
-
- var conflict = await _databaseContext.Users.AnyAsync(u => u.Username == username);
- if (conflict)
- ThrowUsernameConflict();
-
- var newEntity = new UserEntity
- {
- Username = username,
- Password = _passwordService.HashPassword(password),
- Version = 1
- };
- _databaseContext.Users.Add(newEntity);
- await _databaseContext.SaveChangesAsync();
-
- _logger.LogInformation(Log.Format(LogDatabaseCreate, ("Id", newEntity.Id), ("Username", username)));
-
- return newEntity;
- }
-
- public async Task<UserEntity> ModifyUser(long id, ModifyUserParams? param)
- {
- if (param != null)
- {
- if (param.Username != null)
- CheckUsernameFormat(param.Username, nameof(param));
-
- if (param.Password != null)
- CheckPasswordFormat(param.Password, nameof(param));
-
- if (param.Nickname != null)
- CheckNicknameFormat(param.Nickname, nameof(param));
- }
-
- var entity = await _databaseContext.Users.Where(u => u.Id == id).SingleOrDefaultAsync();
- if (entity == null)
- throw new UserNotExistException(id);
-
- if (param != null)
- {
- var now = _clock.GetCurrentTime();
- bool updateLastModified = false;
-
- var username = param.Username;
- if (username != null && username != entity.Username)
- {
- var conflict = await _databaseContext.Users.AnyAsync(u => u.Username == username);
- if (conflict)
- ThrowUsernameConflict();
-
- entity.Username = username;
- entity.UsernameChangeTime = now;
- updateLastModified = true;
- }
-
- var password = param.Password;
- if (password != null)
- {
- entity.Password = _passwordService.HashPassword(password);
- entity.Version += 1;
- }
-
- var nickname = param.Nickname;
- if (nickname != null && nickname != entity.Nickname)
- {
- entity.Nickname = nickname;
- updateLastModified = true;
- }
-
- if (updateLastModified)
- {
- entity.LastModified = now;
- }
-
- await _databaseContext.SaveChangesAsync();
- _logger.LogInformation(LogDatabaseUpdate, ("Id", id));
- }
-
- return entity;
- }
- }
-}
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