423 lines
12 KiB
C#
423 lines
12 KiB
C#
using Newtonsoft.Json;
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using SteamAuth;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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public class Manifest
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{
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[JsonProperty("encrypted")]
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public bool Encrypted { get; set; }
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[JsonProperty("first_run")]
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public bool FirstRun { get; set; } = true;
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[JsonProperty("entries")]
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public List<ManifestEntry> Entries { get; set; }
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[JsonProperty("periodic_checking")]
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public bool PeriodicChecking { get; set; } = false;
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[JsonProperty("periodic_checking_interval")]
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public int PeriodicCheckingInterval { get; set; } = 5;
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[JsonProperty("periodic_checking_checkall")]
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public bool CheckAllAccounts { get; set; } = false;
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[JsonProperty("auto_confirm_market_transactions")]
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public bool AutoConfirmMarketTransactions { get; set; } = false;
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[JsonProperty("auto_confirm_trades")]
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public bool AutoConfirmTrades { get; set; } = false;
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private static Manifest _manifest { get; set; }
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public static string GetExecutableDir()
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{
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return Path.GetDirectoryName(System.Reflection.Assembly.GetEntryAssembly().Location);
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}
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public static Manifest GetManifest(bool forceLoad = false)
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{
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// Check if already staticly loaded
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if (_manifest != null && !forceLoad)
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{
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return _manifest;
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}
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// Find config dir and manifest file
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string maFile = Program.SteamGuardPath + "/manifest.json";
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// If there's no config dir, create it
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if (!Directory.Exists(Program.SteamGuardPath))
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{
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_manifest = _generateNewManifest();
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return _manifest;
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}
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// If there's no manifest, create it
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if (!File.Exists(maFile))
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{
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if (Program.Verbose) Console.WriteLine("warn: No manifest file found at {0}", maFile);
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_manifest = _generateNewManifest(true);
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return _manifest;
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}
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try
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{
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string manifestContents = File.ReadAllText(maFile);
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_manifest = JsonConvert.DeserializeObject<Manifest>(manifestContents);
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if (_manifest.Encrypted && _manifest.Entries.Count == 0)
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{
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_manifest.Encrypted = false;
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_manifest.Save();
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}
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if (_manifest.Encrypted)
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{
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throw new NotSupportedException("Encrypted maFiles are not supported at this time.");
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}
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_manifest.RecomputeExistingEntries();
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return _manifest;
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}
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catch (Exception ex)
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{
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Console.WriteLine("error: Could not open manifest file: {0}", ex.ToString());
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return null;
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}
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}
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private static Manifest _generateNewManifest(bool scanDir = false)
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{
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if (Program.Verbose) Console.WriteLine("Generating new manifest...");
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// No directory means no manifest file anyways.
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Manifest newManifest = new Manifest();
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newManifest.Encrypted = false;
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newManifest.PeriodicCheckingInterval = 5;
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newManifest.PeriodicChecking = false;
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newManifest.AutoConfirmMarketTransactions = false;
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newManifest.AutoConfirmTrades = false;
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newManifest.Entries = new List<ManifestEntry>();
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newManifest.FirstRun = true;
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// Take a pre-manifest version and generate a manifest for it.
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if (scanDir)
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{
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if (Directory.Exists(Program.SteamGuardPath))
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{
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DirectoryInfo dir = new DirectoryInfo(Program.SteamGuardPath);
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var files = dir.GetFiles();
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foreach (var file in files)
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{
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if (file.Extension != ".maFile") continue;
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string contents = File.ReadAllText(file.FullName);
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try
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{
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SteamGuardAccount account = JsonConvert.DeserializeObject<SteamGuardAccount>(contents);
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ManifestEntry newEntry = new ManifestEntry()
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{
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Filename = file.Name,
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SteamID = account.Session.SteamID
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};
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newManifest.Entries.Add(newEntry);
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}
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catch (Exception)
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{
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}
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}
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if (newManifest.Entries.Count > 0)
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{
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newManifest.Save();
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newManifest.PromptSetupPassKey("This version of SDA has encryption. Please enter a passkey below, or hit cancel to remain unencrypted");
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}
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}
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}
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if (newManifest.Save())
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{
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return newManifest;
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}
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return null;
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}
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public class IncorrectPassKeyException : Exception { }
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public class ManifestNotEncryptedException : Exception { }
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public string PromptForPassKey()
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{
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if (!this.Encrypted)
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{
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throw new ManifestNotEncryptedException();
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}
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bool passKeyValid = false;
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string passKey = "";
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while (!passKeyValid)
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{
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Console.WriteLine("Please enter encryption password: ");
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passKey = Console.ReadLine();
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if (passKey == "")
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continue;
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passKeyValid = this.VerifyPasskey(passKey);
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if (!passKeyValid)
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{
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Console.WriteLine("Incorrect.");
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}
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}
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return passKey;
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}
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public string PromptSetupPassKey(string initialPrompt = "Enter passkey, or hit cancel to remain unencrypted.")
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{
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Console.Write("Would you like to use encryption? [Y/n] ");
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string doEncryptAnswer = Console.ReadLine();
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if (doEncryptAnswer == "n" || doEncryptAnswer == "N")
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{
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Console.WriteLine("WARNING: You chose to not encrypt your files. Doing so imposes a security risk for yourself. If an attacker were to gain access to your computer, they could completely lock you out of your account and steal all your items.");
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return null;
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}
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string newPassKey = "";
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string confirmPassKey = "";
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do
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{
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Console.Write("Enter passkey: ");
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newPassKey = Console.ReadLine();
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Console.Write("Confirm passkey: ");
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confirmPassKey = Console.ReadLine();
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if (newPassKey != confirmPassKey)
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{
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Console.WriteLine("Passkeys do not match.");
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}
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} while (newPassKey != confirmPassKey);
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if (!this.ChangeEncryptionKey(null, newPassKey))
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{
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Console.WriteLine("Unable to set passkey.");
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return null;
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}
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else
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{
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Console.WriteLine("Passkey successfully set.");
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}
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return newPassKey;
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}
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public SteamAuth.SteamGuardAccount[] GetAllAccounts(string passKey = null, int limit = -1)
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{
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if (passKey == null && this.Encrypted) return new SteamGuardAccount[0];
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List<SteamAuth.SteamGuardAccount> accounts = new List<SteamAuth.SteamGuardAccount>();
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foreach (var entry in this.Entries)
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{
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string fileText = File.ReadAllText(Path.Combine(Program.SteamGuardPath, entry.Filename));
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if (this.Encrypted)
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{
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throw new NotSupportedException("Encrypted maFiles are not supported at this time.");
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//string decryptedText = FileEncryptor.DecryptData(passKey, entry.Salt, entry.IV, fileText);
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//if (decryptedText == null) return new SteamGuardAccount[0];
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//fileText = decryptedText;
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}
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var account = JsonConvert.DeserializeObject<SteamAuth.SteamGuardAccount>(fileText);
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if (account == null) continue;
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accounts.Add(account);
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if (limit != -1 && limit >= accounts.Count)
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break;
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}
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return accounts.ToArray();
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}
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public bool ChangeEncryptionKey(string oldKey, string newKey)
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{
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throw new NotSupportedException("Encrypted maFiles are not supported at this time.");
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}
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public bool VerifyPasskey(string passkey)
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{
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if (!this.Encrypted || this.Entries.Count == 0) return true;
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var accounts = this.GetAllAccounts(passkey, 1);
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return accounts != null && accounts.Length == 1;
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}
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public bool RemoveAccount(SteamGuardAccount account, bool deleteMaFile = true)
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{
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ManifestEntry entry = (from e in this.Entries where e.SteamID == account.Session.SteamID select e).FirstOrDefault();
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if (entry == null) return true; // If something never existed, did you do what they asked?
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string filename = Path.Combine(Program.SteamGuardPath, entry.Filename);
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this.Entries.Remove(entry);
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if (this.Entries.Count == 0)
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{
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this.Encrypted = false;
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}
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if (this.Save() && deleteMaFile)
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{
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try
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{
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File.Delete(filename);
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return true;
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}
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catch (Exception)
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{
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return false;
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}
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}
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return false;
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}
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public bool SaveAccount(SteamGuardAccount account, bool encrypt, string passKey = null)
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{
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if (encrypt && String.IsNullOrEmpty(passKey)) return false;
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if (!encrypt && this.Encrypted) return false;
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string salt = null;
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string iV = null;
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string jsonAccount = JsonConvert.SerializeObject(account);
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if (encrypt)
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{
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throw new NotSupportedException("Encrypted maFiles are not supported at this time.");
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}
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string filename = account.Session.SteamID.ToString() + ".maFile";
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ManifestEntry newEntry = new ManifestEntry()
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{
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SteamID = account.Session.SteamID,
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IV = iV,
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Salt = salt,
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Filename = filename
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};
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bool foundExistingEntry = false;
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for (int i = 0; i < this.Entries.Count; i++)
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{
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if (this.Entries[i].SteamID == account.Session.SteamID)
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{
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this.Entries[i] = newEntry;
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foundExistingEntry = true;
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break;
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}
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}
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if (!foundExistingEntry)
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{
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this.Entries.Add(newEntry);
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}
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bool wasEncrypted = this.Encrypted;
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this.Encrypted = encrypt || this.Encrypted;
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if (!this.Save())
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{
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this.Encrypted = wasEncrypted;
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return false;
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}
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try
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{
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File.WriteAllText(Program.SteamGuardPath + filename, jsonAccount);
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return true;
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}
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catch (Exception)
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{
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return false;
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}
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}
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public bool Save()
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{
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string filename = Program.SteamGuardPath + "manifest.json";
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if (!Directory.Exists(Program.SteamGuardPath))
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{
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try
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{
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Directory.CreateDirectory(Program.SteamGuardPath);
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}
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catch (Exception)
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{
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return false;
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}
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}
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try
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{
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string contents = JsonConvert.SerializeObject(this);
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File.WriteAllText(filename, contents);
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return true;
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}
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catch (Exception)
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{
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return false;
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}
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}
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private void RecomputeExistingEntries()
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{
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List<ManifestEntry> newEntries = new List<ManifestEntry>();
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foreach (var entry in this.Entries)
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{
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string filename = Path.Combine(Program.SteamGuardPath, entry.Filename);
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if (File.Exists(filename))
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{
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newEntries.Add(entry);
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}
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}
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this.Entries = newEntries;
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if (this.Entries.Count == 0)
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{
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this.Encrypted = false;
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}
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}
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public void MoveEntry(int from, int to)
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{
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if (from < 0 || to < 0 || from > Entries.Count || to > Entries.Count - 1) return;
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ManifestEntry sel = Entries[from];
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Entries.RemoveAt(from);
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Entries.Insert(to, sel);
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Save();
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}
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public class ManifestEntry
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{
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[JsonProperty("encryption_iv")]
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public string IV { get; set; }
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[JsonProperty("encryption_salt")]
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public string Salt { get; set; }
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[JsonProperty("filename")]
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public string Filename { get; set; }
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[JsonProperty("steamid")]
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public ulong SteamID { get; set; }
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}
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}
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