mirror of
https://github.com/jellyfin/jellyfin.git
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182 lines
5.9 KiB
C#
182 lines
5.9 KiB
C#
using MediaBrowser.Common.Configuration;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Persistence;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Model.Serialization;
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.IO;
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using System.Threading;
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using System.Threading.Tasks;
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namespace MediaBrowser.Server.Implementations.Sqlite
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{
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/// <summary>
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/// Class SQLiteUserRepository
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/// </summary>
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public class SQLiteUserRepository : SqliteRepository, IUserRepository
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{
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/// <summary>
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/// The repository name
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/// </summary>
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public const string RepositoryName = "SQLite";
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/// <summary>
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/// Gets the name of the repository
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/// </summary>
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/// <value>The name.</value>
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public string Name
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{
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get
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{
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return RepositoryName;
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}
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}
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/// <summary>
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/// Gets the json serializer.
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/// </summary>
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/// <value>The json serializer.</value>
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private readonly IJsonSerializer _jsonSerializer;
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/// <summary>
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/// The _app paths
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/// </summary>
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private readonly IApplicationPaths _appPaths;
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/// <summary>
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/// Initializes a new instance of the <see cref="SQLiteUserDataRepository" /> class.
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/// </summary>
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/// <param name="appPaths">The app paths.</param>
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/// <param name="jsonSerializer">The json serializer.</param>
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/// <param name="logger">The logger.</param>
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/// <exception cref="System.ArgumentNullException">appPaths</exception>
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public SQLiteUserRepository(IApplicationPaths appPaths, IJsonSerializer jsonSerializer, ILogger logger)
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: base(logger)
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{
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if (appPaths == null)
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{
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throw new ArgumentNullException("appPaths");
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}
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if (jsonSerializer == null)
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{
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throw new ArgumentNullException("jsonSerializer");
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}
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_appPaths = appPaths;
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_jsonSerializer = jsonSerializer;
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}
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/// <summary>
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/// Opens the connection to the database
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/// </summary>
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/// <returns>Task.</returns>
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public async Task Initialize()
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{
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var dbFile = Path.Combine(_appPaths.DataPath, "users.db");
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await ConnectToDB(dbFile).ConfigureAwait(false);
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string[] queries = {
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"create table if not exists users (guid GUID primary key, data BLOB)",
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"create index if not exists idx_users on users(guid)",
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"create table if not exists schema_version (table_name primary key, version)",
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//pragmas
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"pragma temp_store = memory"
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};
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RunQueries(queries);
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}
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/// <summary>
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/// Save a user in the repo
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/// </summary>
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/// <param name="user">The user.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task.</returns>
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/// <exception cref="System.ArgumentNullException">user</exception>
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public Task SaveUser(User user, CancellationToken cancellationToken)
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{
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if (user == null)
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{
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throw new ArgumentNullException("user");
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}
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if (cancellationToken == null)
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{
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throw new ArgumentNullException("cancellationToken");
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}
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return Task.Run(() =>
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{
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cancellationToken.ThrowIfCancellationRequested();
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var serialized = _jsonSerializer.SerializeToBytes(user);
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cancellationToken.ThrowIfCancellationRequested();
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var cmd = connection.CreateCommand();
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cmd.CommandText = "replace into users (guid, data) values (@1, @2)";
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cmd.AddParam("@1", user.Id);
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cmd.AddParam("@2", serialized);
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QueueCommand(cmd);
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});
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}
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/// <summary>
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/// Retrieve all users from the database
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/// </summary>
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/// <returns>IEnumerable{User}.</returns>
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public IEnumerable<User> RetrieveAllUsers()
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{
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var cmd = connection.CreateCommand();
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cmd.CommandText = "select data from users";
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using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult))
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{
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while (reader.Read())
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{
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using (var stream = GetStream(reader, 0))
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{
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var user = _jsonSerializer.DeserializeFromStream<User>(stream);
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yield return user;
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}
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}
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}
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}
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/// <summary>
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/// Deletes the user.
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/// </summary>
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/// <param name="user">The user.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task.</returns>
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/// <exception cref="System.ArgumentNullException">user</exception>
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public Task DeleteUser(User user, CancellationToken cancellationToken)
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{
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if (user == null)
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{
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throw new ArgumentNullException("user");
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}
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if (cancellationToken == null)
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{
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throw new ArgumentNullException("cancellationToken");
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}
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return Task.Run(() =>
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{
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cancellationToken.ThrowIfCancellationRequested();
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var cmd = connection.CreateCommand();
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cmd.CommandText = "delete from users where guid=@guid";
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var guidParam = cmd.Parameters.Add("@guid", DbType.Guid);
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guidParam.Value = user.Id;
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return ExecuteCommand(cmd);
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});
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}
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}
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}
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