mirror of
https://github.com/MCCTeam/Minecraft-Console-Client
synced 2025-10-14 21:22:49 +00:00
272 lines
12 KiB
C#
272 lines
12 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Runtime.Serialization;
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using System.Runtime.Serialization.Formatters.Binary;
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using System.Timers;
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using static MinecraftClient.Settings;
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using static MinecraftClient.Settings.MainConfigHealper.MainConfig.AdvancedConfig;
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namespace MinecraftClient.Protocol.Session
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{
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/// <summary>
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/// Handle sessions caching and storage.
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/// </summary>
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public static class SessionCache
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{
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private const string SessionCacheFilePlaintext = "SessionCache.ini";
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private const string SessionCacheFileSerialized = "SessionCache.db";
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private static readonly string SessionCacheFileMinecraft = String.Concat(
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Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
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Path.DirectorySeparatorChar,
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".minecraft",
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Path.DirectorySeparatorChar,
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"launcher_profiles.json"
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);
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private static FileMonitor? cachemonitor;
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private static readonly Dictionary<string, SessionToken> sessions = new();
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private static readonly Timer updatetimer = new(100);
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private static readonly List<KeyValuePair<string, SessionToken>> pendingadds = new();
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private static readonly BinaryFormatter formatter = new();
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/// <summary>
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/// Retrieve whether SessionCache contains a session for the given login.
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/// </summary>
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/// <param name="login">User login used with Minecraft.net</param>
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/// <returns>TRUE if session is available</returns>
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public static bool Contains(string login)
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{
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return sessions.ContainsKey(login);
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}
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/// <summary>
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/// Store a session and save it to disk if required.
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/// </summary>
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/// <param name="login">User login used with Minecraft.net</param>
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/// <param name="session">User session token used with Minecraft.net</param>
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public static void Store(string login, SessionToken session)
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{
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if (Contains(login))
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{
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sessions[login] = session;
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}
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else
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{
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sessions.Add(login, session);
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}
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if (Config.Main.Advanced.SessionCache == CacheType.disk && updatetimer.Enabled == true)
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{
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pendingadds.Add(new KeyValuePair<string, SessionToken>(login, session));
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}
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else if (Config.Main.Advanced.SessionCache == CacheType.disk)
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{
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SaveToDisk();
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}
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}
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/// <summary>
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/// Retrieve a session token for the given login.
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/// </summary>
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/// <param name="login">User login used with Minecraft.net</param>
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/// <returns>SessionToken for given login</returns>
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public static SessionToken Get(string login)
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{
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return sessions[login];
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}
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/// <summary>
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/// Initialize cache monitoring to keep cache updated with external changes.
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/// </summary>
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/// <returns>TRUE if session tokens are seeded from file</returns>
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public static bool InitializeDiskCache()
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{
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cachemonitor = new FileMonitor(AppDomain.CurrentDomain.BaseDirectory, SessionCacheFilePlaintext, new FileSystemEventHandler(OnChanged));
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updatetimer.Elapsed += HandlePending;
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return LoadFromDisk();
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}
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/// <summary>
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/// Reloads cache on external cache file change.
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/// </summary>
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/// <param name="sender">Sender</param>
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/// <param name="e">Event data</param>
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private static void OnChanged(object sender, FileSystemEventArgs e)
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{
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updatetimer.Stop();
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updatetimer.Start();
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}
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/// <summary>
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/// Called after timer elapsed. Reads disk cache and adds new/modified sessions back.
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/// </summary>
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/// <param name="sender">Sender</param>
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/// <param name="e">Event data</param>
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private static void HandlePending(object? sender, ElapsedEventArgs e)
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{
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updatetimer.Stop();
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LoadFromDisk();
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foreach (KeyValuePair<string, SessionToken> pending in pendingadds.ToArray())
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{
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Store(pending.Key, pending.Value);
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pendingadds.Remove(pending);
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}
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}
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/// <summary>
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/// Reads cache file and loads SessionTokens into SessionCache.
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/// </summary>
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/// <returns>True if data is successfully loaded</returns>
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private static bool LoadFromDisk()
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{
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//Grab sessions in the Minecraft directory
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if (File.Exists(SessionCacheFileMinecraft))
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{
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if (Config.Logging.DebugMessages)
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ConsoleIO.WriteLineFormatted(string.Format(Translations.cache_loading, Path.GetFileName(SessionCacheFileMinecraft)));
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Json.JSONData mcSession = new(Json.JSONData.DataType.String);
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try
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{
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mcSession = Json.ParseJson(File.ReadAllText(SessionCacheFileMinecraft));
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}
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catch (IOException) { /* Failed to read file from disk -- ignoring */ }
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if (mcSession.Type == Json.JSONData.DataType.Object
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&& mcSession.Properties.ContainsKey("clientToken")
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&& mcSession.Properties.ContainsKey("authenticationDatabase"))
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{
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string clientID = mcSession.Properties["clientToken"].StringValue.Replace("-", "");
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Dictionary<string, Json.JSONData> sessionItems = mcSession.Properties["authenticationDatabase"].Properties;
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foreach (string key in sessionItems.Keys)
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{
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if (Guid.TryParseExact(key, "N", out Guid temp))
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{
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Dictionary<string, Json.JSONData> sessionItem = sessionItems[key].Properties;
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if (sessionItem.ContainsKey("displayName")
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&& sessionItem.ContainsKey("accessToken")
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&& sessionItem.ContainsKey("username")
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&& sessionItem.ContainsKey("uuid"))
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{
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string login = Settings.ToLowerIfNeed(sessionItem["username"].StringValue);
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try
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{
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SessionToken session = SessionToken.FromString(String.Join(",",
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sessionItem["accessToken"].StringValue,
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sessionItem["displayName"].StringValue,
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sessionItem["uuid"].StringValue.Replace("-", ""),
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clientID
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));
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if (Config.Logging.DebugMessages)
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ConsoleIO.WriteLineFormatted(string.Format(Translations.cache_loaded, login, session.ID));
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sessions[login] = session;
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}
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catch (InvalidDataException) { /* Not a valid session */ }
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}
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}
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}
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}
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}
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//Serialized session cache file in binary format
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if (File.Exists(SessionCacheFileSerialized))
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{
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if (Config.Logging.DebugMessages)
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ConsoleIO.WriteLineFormatted(string.Format(Translations.cache_converting, SessionCacheFileSerialized));
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try
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{
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using FileStream fs = new(SessionCacheFileSerialized, FileMode.Open, FileAccess.Read, FileShare.Read);
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#pragma warning disable SYSLIB0011 // BinaryFormatter.Deserialize() is obsolete
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// Possible risk of information disclosure or remote code execution. The impact of this vulnerability is limited to the user side only.
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Dictionary<string, SessionToken> sessionsTemp = (Dictionary<string, SessionToken>)formatter.Deserialize(fs);
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#pragma warning restore SYSLIB0011 // BinaryFormatter.Deserialize() is obsolete
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foreach (KeyValuePair<string, SessionToken> item in sessionsTemp)
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{
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if (Config.Logging.DebugMessages)
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ConsoleIO.WriteLineFormatted(string.Format(Translations.cache_loaded, item.Key, item.Value.ID));
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sessions[item.Key] = item.Value;
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}
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}
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catch (IOException ex)
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{
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ConsoleIO.WriteLineFormatted("§8" + string.Format(Translations.cache_read_fail, ex.Message));
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}
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catch (SerializationException ex2)
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{
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ConsoleIO.WriteLineFormatted(string.Format(Translations.cache_malformed, ex2.Message));
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}
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}
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//User-editable session cache file in text format
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if (File.Exists(SessionCacheFilePlaintext))
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{
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if (Config.Logging.DebugMessages)
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ConsoleIO.WriteLineFormatted(string.Format(Translations.cache_loading_session, SessionCacheFilePlaintext));
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try
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{
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foreach (string line in FileMonitor.ReadAllLinesWithRetries(SessionCacheFilePlaintext))
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{
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if (!line.Trim().StartsWith("#"))
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{
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string[] keyValue = line.Split('=');
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if (keyValue.Length == 2)
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{
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try
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{
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string login = Settings.ToLowerIfNeed(keyValue[0]);
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SessionToken session = SessionToken.FromString(keyValue[1]);
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if (Config.Logging.DebugMessages)
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ConsoleIO.WriteLineFormatted(string.Format(Translations.cache_loaded, login, session.ID));
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sessions[login] = session;
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}
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catch (InvalidDataException e)
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{
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if (Config.Logging.DebugMessages)
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ConsoleIO.WriteLineFormatted(string.Format(Translations.cache_ignore_string, keyValue[1], e.Message));
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}
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}
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else if (Config.Logging.DebugMessages)
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{
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ConsoleIO.WriteLineFormatted(string.Format(Translations.cache_ignore_line, line));
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}
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}
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}
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}
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catch (IOException e)
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{
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ConsoleIO.WriteLineFormatted("§8" + string.Format(Translations.cache_read_fail_plain, e.Message));
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}
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}
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return sessions.Count > 0;
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}
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/// <summary>
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/// Saves SessionToken's from SessionCache into cache file.
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/// </summary>
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private static void SaveToDisk()
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{
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if (Config.Logging.DebugMessages)
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ConsoleIO.WriteLineFormatted("§8" + Translations.cache_saving, acceptnewlines: true);
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List<string> sessionCacheLines = new()
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{
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"# Generated by MCC v" + Program.Version + " - Keep it secret & Edit at own risk!",
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"# Login=SessionID,PlayerName,UUID,ClientID,RefreshToken,ServerIDhash,ServerPublicKey"
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};
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foreach (KeyValuePair<string, SessionToken> entry in sessions)
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sessionCacheLines.Add(entry.Key + '=' + entry.Value.ToString());
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try
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{
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FileMonitor.WriteAllLinesWithRetries(SessionCacheFilePlaintext, sessionCacheLines);
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}
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catch (IOException e)
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{
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ConsoleIO.WriteLineFormatted("§8" + string.Format(Translations.cache_save_fail, e.Message));
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}
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}
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}
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}
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