From ac769e656b122ff569c3f1534701b71e00fed586 Mon Sep 17 00:00:00 2001 From: crupest Date: Tue, 27 Oct 2020 19:21:35 +0800 Subject: Split front and back end. --- Timeline/Services/UserService.cs | 437 --------------------------------------- 1 file changed, 437 deletions(-) delete mode 100644 Timeline/Services/UserService.cs (limited to 'Timeline/Services/UserService.cs') diff --git a/Timeline/Services/UserService.cs b/Timeline/Services/UserService.cs deleted file mode 100644 index 821bc33d..00000000 --- a/Timeline/Services/UserService.cs +++ /dev/null @@ -1,437 +0,0 @@ -using Microsoft.EntityFrameworkCore; -using Microsoft.Extensions.Logging; -using System; -using System.Globalization; -using System.Linq; -using System.Threading.Tasks; -using Timeline.Entities; -using Timeline.Helpers; -using Timeline.Models; -using Timeline.Models.Validation; -using Timeline.Services.Exceptions; -using static Timeline.Resources.Services.UserService; - -namespace Timeline.Services -{ - public interface IUserService - { - /// - /// Try to verify the given username and password. - /// - /// The username of the user to verify. - /// The password of the user to verify. - /// The user info and auth info. - /// Thrown when or is null. - /// Thrown when is of bad format or is empty. - /// Thrown when the user with given username does not exist. - /// Thrown when password is wrong. - Task VerifyCredential(string username, string password); - - /// - /// Try to get a user by id. - /// - /// The id of the user. - /// The user info. - /// Thrown when the user with given id does not exist. - Task GetUserById(long id); - - /// - /// Get the user info of given username. - /// - /// Username of the user. - /// The info of the user. - /// Thrown when is null. - /// Thrown when is of bad format. - /// Thrown when the user with given username does not exist. - Task GetUserByUsername(string username); - - /// - /// Get the user id of given username. - /// - /// Username of the user. - /// The id of the user. - /// Thrown when is null. - /// Thrown when is of bad format. - /// Thrown when the user with given username does not exist. - Task GetUserIdByUsername(string username); - - /// - /// List all users. - /// - /// The user info of users. - Task GetUsers(); - - /// - /// Create a user with given info. - /// - /// The info of new user. - /// The the new user. - /// Thrown when is null. - /// Thrown when some fields in is bad. - /// Thrown when a user with given username already exists. - /// - /// must not be null and must be a valid username. - /// must not be null or empty. - /// is false by default (null). - /// must be a valid nickname if set. It is empty by default. - /// Other fields are ignored. - /// - Task CreateUser(User info); - - /// - /// Modify a user's info. - /// - /// The id of the user. - /// The new info. May be null. - /// The new user info. - /// Thrown when some fields in is bad. - /// Thrown when user with given id does not exist. - /// - /// Only , , and will be used. - /// If null, then not change. - /// Other fields are ignored. - /// Version will increase if password is changed. - /// - /// must be a valid username if set. - /// can't be empty if set. - /// must be a valid nickname if set. - /// - /// - /// - Task ModifyUser(long id, User? info); - - /// - /// Modify a user's info. - /// - /// The username of the user. - /// The new info. May be null. - /// The new user info. - /// Thrown when is null. - /// Thrown when is of bad format or some fields in is bad. - /// Thrown when user with given id does not exist. - /// Thrown when user with the newusername already exist. - /// - /// Only , and will be used. - /// If null, then not change. - /// Other fields are ignored. - /// After modified, even if nothing is changed, version will increase. - /// - /// must be a valid username if set. - /// can't be empty if set. - /// must be a valid nickname if set. - /// - /// Note: Whether is set or not, version will increase and not set to the specified value if there is one. - /// - /// - Task ModifyUser(string username, User? info); - - /// - /// Try to change a user's password with old password. - /// - /// The id of user to change password of. - /// Old password. - /// New password. - /// Thrown if or is null. - /// Thrown if or is empty. - /// Thrown if the user with given username does not exist. - /// Thrown if the old password is wrong. - Task ChangePassword(long id, string oldPassword, string newPassword); - } - - public class UserService : IUserService - { - private readonly ILogger _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 logger, DatabaseContext databaseContext, IPasswordService passwordService, IClock clock) - { - _logger = logger; - _clock = clock; - _databaseContext = databaseContext; - _passwordService = passwordService; - } - - 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); - } - - private static User CreateUserFromEntity(UserEntity entity) - { - return new User - { - UniqueId = entity.UniqueId, - Username = entity.Username, - Administrator = UserRoleConvert.ToBool(entity.Roles), - Nickname = string.IsNullOrEmpty(entity.Nickname) ? entity.Username : entity.Nickname, - Id = entity.Id, - Version = entity.Version, - CreateTime = entity.CreateTime, - UsernameChangeTime = entity.UsernameChangeTime, - LastModified = entity.LastModified - }; - } - - public async Task VerifyCredential(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 entity = await _databaseContext.Users.Where(u => u.Username == username).SingleOrDefaultAsync(); - - if (entity == null) - throw new UserNotExistException(username); - - if (!_passwordService.VerifyPassword(entity.Password, password)) - throw new BadPasswordException(password); - - return CreateUserFromEntity(entity); - } - - public async Task GetUserById(long id) - { - var user = await _databaseContext.Users.Where(u => u.Id == id).SingleOrDefaultAsync(); - - if (user == null) - throw new UserNotExistException(id); - - return CreateUserFromEntity(user); - } - - public async Task GetUserByUsername(string username) - { - if (username == null) - throw new ArgumentNullException(nameof(username)); - - CheckUsernameFormat(username, nameof(username)); - - var entity = await _databaseContext.Users.Where(user => user.Username == username).SingleOrDefaultAsync(); - - if (entity == null) - throw new UserNotExistException(username); - - return CreateUserFromEntity(entity); - } - - public async Task GetUserIdByUsername(string username) - { - if (username == null) - throw new ArgumentNullException(nameof(username)); - - CheckUsernameFormat(username, nameof(username)); - - var entity = await _databaseContext.Users.Where(user => user.Username == username).Select(u => new { u.Id }).SingleOrDefaultAsync(); - - if (entity == null) - throw new UserNotExistException(username); - - return entity.Id; - } - - public async Task GetUsers() - { - var entities = await _databaseContext.Users.ToArrayAsync(); - return entities.Select(user => CreateUserFromEntity(user)).ToArray(); - } - - public async Task CreateUser(User info) - { - if (info == null) - throw new ArgumentNullException(nameof(info)); - - if (info.Username == null) - throw new ArgumentException(ExceptionUsernameNull, nameof(info)); - CheckUsernameFormat(info.Username, nameof(info)); - - if (info.Password == null) - throw new ArgumentException(ExceptionPasswordNull, nameof(info)); - CheckPasswordFormat(info.Password, nameof(info)); - - if (info.Nickname != null) - CheckNicknameFormat(info.Nickname, nameof(info)); - - var username = info.Username; - - var conflict = await _databaseContext.Users.AnyAsync(u => u.Username == username); - if (conflict) - ThrowUsernameConflict(); - - var administrator = info.Administrator ?? false; - var password = info.Password; - var nickname = info.Nickname; - - var newEntity = new UserEntity - { - Username = username, - Password = _passwordService.HashPassword(password), - Roles = UserRoleConvert.ToString(administrator), - Nickname = nickname, - Version = 1 - }; - _databaseContext.Users.Add(newEntity); - await _databaseContext.SaveChangesAsync(); - - _logger.LogInformation(Log.Format(LogDatabaseCreate, - ("Id", newEntity.Id), ("Username", username), ("Administrator", administrator))); - - return CreateUserFromEntity(newEntity); - } - - private void ValidateModifyUserInfo(User? info) - { - if (info != null) - { - if (info.Username != null) - CheckUsernameFormat(info.Username, nameof(info)); - - if (info.Password != null) - CheckPasswordFormat(info.Password, nameof(info)); - - if (info.Nickname != null) - CheckNicknameFormat(info.Nickname, nameof(info)); - } - } - - private async Task UpdateUserEntity(UserEntity entity, User? info) - { - if (info != null) - { - var now = _clock.GetCurrentTime(); - bool updateLastModified = false; - - var username = info.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 = info.Password; - if (password != null) - { - entity.Password = _passwordService.HashPassword(password); - entity.Version += 1; - } - - var administrator = info.Administrator; - if (administrator.HasValue && UserRoleConvert.ToBool(entity.Roles) != administrator) - { - entity.Roles = UserRoleConvert.ToString(administrator.Value); - updateLastModified = true; - } - - var nickname = info.Nickname; - if (nickname != null && nickname != entity.Nickname) - { - entity.Nickname = nickname; - updateLastModified = true; - } - - if (updateLastModified) - { - entity.LastModified = now; - } - } - } - - - public async Task ModifyUser(long id, User? info) - { - ValidateModifyUserInfo(info); - - var entity = await _databaseContext.Users.Where(u => u.Id == id).SingleOrDefaultAsync(); - if (entity == null) - throw new UserNotExistException(id); - - await UpdateUserEntity(entity, info); - - await _databaseContext.SaveChangesAsync(); - _logger.LogInformation(LogDatabaseUpdate, ("Id", id)); - - return CreateUserFromEntity(entity); - } - - public async Task ModifyUser(string username, User? info) - { - if (username == null) - throw new ArgumentNullException(nameof(username)); - CheckUsernameFormat(username, nameof(username)); - - ValidateModifyUserInfo(info); - - var entity = await _databaseContext.Users.Where(u => u.Username == username).SingleOrDefaultAsync(); - if (entity == null) - throw new UserNotExistException(username); - - await UpdateUserEntity(entity, info); - - await _databaseContext.SaveChangesAsync(); - _logger.LogInformation(LogDatabaseUpdate, ("Username", username)); - - return CreateUserFromEntity(entity); - } - - public async Task ChangePassword(long id, string oldPassword, string newPassword) - { - if (oldPassword == null) - throw new ArgumentNullException(nameof(oldPassword)); - if (newPassword == null) - throw new ArgumentNullException(nameof(newPassword)); - CheckPasswordFormat(oldPassword, nameof(oldPassword)); - CheckPasswordFormat(newPassword, nameof(newPassword)); - - var entity = await _databaseContext.Users.Where(u => u.Id == id).SingleOrDefaultAsync(); - - if (entity == null) - throw new UserNotExistException(id); - - if (!_passwordService.VerifyPassword(entity.Password, oldPassword)) - throw new BadPasswordException(oldPassword); - - entity.Password = _passwordService.HashPassword(newPassword); - entity.Version += 1; - await _databaseContext.SaveChangesAsync(); - _logger.LogInformation(Log.Format(LogDatabaseUpdate, ("Id", id), ("Operation", "Change password"))); - } - } -} -- cgit v1.2.3