Kenneth Skovhede
f3e2a0a902
Avoids setting deprecated `Thread.CurrentCulture` and `Thread.CurrentUICulture`, using `CultureInfo.CurrentCulture` instead. Fixed a few legacy places where incorrect string compares were used.
591 lines
27 KiB
C#
591 lines
27 KiB
C#
// Copyright (C) 2024, The Duplicati Team
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// https://duplicati.com, hello@duplicati.com
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System;
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using System.Linq;
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using System.Collections.Generic;
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using System.IO;
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using Duplicati.Library.Utility;
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using Duplicati.Library.Common;
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using System.Diagnostics;
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using System.Text.Json;
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using System.Net.Http;
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using System.Threading;
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namespace Duplicati.Library.AutoUpdater
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{
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public static class UpdaterManager
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{
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/// <summary>
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/// The RSA key used to sign the manifest
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/// </summary>
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private static readonly System.Security.Cryptography.RSA[] SIGN_KEYS = AutoUpdateSettings.SignKeys;
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/// <summary>
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/// Urls to check for updated packages
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/// </summary>
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private static readonly string[] MANIFEST_URLS = AutoUpdateSettings.URLs;
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/// <summary>
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/// The app name to show
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/// </summary>
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private static readonly string APPNAME = AutoUpdateSettings.AppName;
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/// <summary>
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/// The version that the updater supports
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/// </summary>
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public const int SUPPORTED_PACKAGE_UPDATER_VERSION = 2;
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/// <summary>
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/// The folder where the machine id is placed
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/// </summary>
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public static readonly string UPDATEDIR;
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/// <summary>
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/// The directory where the program is running from
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/// </summary>
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public static readonly string INSTALLATIONDIR;
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/// <summary>
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/// Env variable that allows fully disabling all update checks
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/// </summary>
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public static readonly bool DISABLE_UPDATE_CHECK = Debugger.IsAttached || Utility.Utility.ParseBool(Environment.GetEnvironmentVariable(string.Format(SKIPUPDATE_ENVNAME_TEMPLATE, APPNAME)), false);
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/// <summary>
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/// The update information for the running version
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/// </summary>
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public static readonly UpdateInfo SelfVersion;
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/// <summary>
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/// Event trigger for errors on update
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/// </summary>
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public static event Action<Exception> OnError;
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/// <summary>
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/// Common formatting string for date-time values
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/// </summary>
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private const string DATETIME_FORMAT = "yyyymmddhhMMss";
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/// <summary>
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/// The template for the environment variable name that allows an overriden root folder
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/// </summary>
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private const string UPDATEINSTALLDIR_ENVNAME_TEMPLATE = "AUTOUPDATER_{0}_UPDATE_ROOT";
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/// <summary>
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/// The template for the environment variable that toggles disabling updates
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/// </summary>
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public const string SKIPUPDATE_ENVNAME_TEMPLATE = "AUTOUPDATER_{0}_SKIP_UPDATE";
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/// <summary>
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/// The name of the file that contains the manifest, located in the <see cref="INSTALLATIONDIR"/> folder
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/// </summary>
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private const string UPDATE_MANIFEST_FILENAME = "autoupdate.manifest";
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/// <summary>
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/// The name of the file that contains the package type id, located in the <see cref="INSTALLATIONDIR"/> folder
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/// </summary>
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private const string PACKAGE_TYPE_FILE = "package_type_id.txt";
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/// <summary>
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/// The installation ID filename stored in <see cref="UPDATEDIR"/>
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/// </summary>
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private const string INSTALL_FILE = "installation.txt";
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/// <summary>
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/// The machine ID filename stored in <see cref="UPDATEDIR"/>
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/// </summary>
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private const string MACHINE_FILE = "machineid.txt";
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/// <summary>
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/// Gets the last version found from an update
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/// </summary>
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public static UpdateInfo LastUpdateCheckVersion { get; private set; }
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/// <summary>
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/// The default timeout in seconds for download operations
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/// </summary>
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private const int DOWNLOAD_OPERATION_TIMEOUT_SECONDS = 3600;
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/// <summary>
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/// The default timeout in seconds for fast get version metadata operations
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/// </summary>
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private const int SHORT_OPERATION_TIMEOUT_SECONDS = 30;
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/// <summary>
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/// Performs static initialization of the update manager, populating the readonly fields of the manager
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/// </summary>
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static UpdaterManager()
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{
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// Set the installation path
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INSTALLATIONDIR = Path.GetDirectoryName(Duplicati.Library.Utility.Utility.getEntryAssembly().Location);
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// Check for override
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if (string.IsNullOrWhiteSpace(System.Environment.GetEnvironmentVariable(string.Format(UPDATEINSTALLDIR_ENVNAME_TEMPLATE, APPNAME))))
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{
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// OS specific folders for probing
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var candidates = new List<string>();
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if (OperatingSystem.IsWindows())
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{
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candidates.Add(System.IO.Path.Combine(System.Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), APPNAME));
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candidates.Add(System.IO.Path.Combine(System.Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), APPNAME));
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}
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else
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{
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candidates.Add(System.IO.Path.Combine(System.Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), APPNAME));
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}
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if (OperatingSystem.IsMacOS())
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candidates.Add(System.IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), "Library", "Application Support", APPNAME));
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// Find the first writeable directory in the list
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UPDATEDIR = candidates.FirstOrDefault(p => !string.IsNullOrWhiteSpace(p) && System.IO.Directory.Exists(p) && TestDirectoryIsWriteable(p));
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// Try to create a writeable folder, if none is found
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if (string.IsNullOrWhiteSpace(UPDATEDIR))
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UPDATEDIR = candidates.Where(p => !string.IsNullOrWhiteSpace(p) && !System.IO.Directory.Exists(p))
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.Select(p =>
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{
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try { System.IO.Directory.CreateDirectory(p); }
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catch { }
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return p;
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})
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.Where(p => System.IO.Directory.Exists(p) && TestDirectoryIsWriteable(p))
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.FirstOrDefault();
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}
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else
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{
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// Use override, no checks
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UPDATEDIR = Environment.ExpandEnvironmentVariables(System.Environment.GetEnvironmentVariable(string.Format(UPDATEINSTALLDIR_ENVNAME_TEMPLATE, APPNAME)));
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}
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if (!string.IsNullOrWhiteSpace(UPDATEDIR))
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{
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if (!System.IO.File.Exists(System.IO.Path.Combine(UPDATEDIR, INSTALL_FILE)))
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{
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// In case there was already a machine id file, copy it to the new location
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if (System.IO.File.Exists(System.IO.Path.Combine(UPDATEDIR, "updates", INSTALL_FILE)))
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System.IO.File.Copy(System.IO.Path.Combine(UPDATEDIR, "updates", INSTALL_FILE), System.IO.Path.Combine(UPDATEDIR, INSTALL_FILE), true);
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else
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System.IO.File.WriteAllText(System.IO.Path.Combine(UPDATEDIR, INSTALL_FILE), AutoUpdateSettings.UpdateInstallFileText);
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}
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if (!System.IO.File.Exists(System.IO.Path.Combine(UPDATEDIR, MACHINE_FILE)))
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System.IO.File.WriteAllText(System.IO.Path.Combine(UPDATEDIR, MACHINE_FILE), AutoUpdateSettings.UpdateMachineFileText(InstallID));
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}
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// Attempt to read the installed manifest file
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UpdateInfo selfVersion = null;
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try
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{
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selfVersion = ReadInstalledManifest(INSTALLATIONDIR);
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}
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catch
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{
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}
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// In case the installed manifest is broken, try to set some sane values
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if (selfVersion == null)
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{
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SelfVersion = new UpdateInfo(
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MinimumCompatibleVersion: 1,
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PackageUpdaterVersion: 1,
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IncompatibleUpdateUrl: string.Empty,
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GenericUpdatePageUrl: "https://duplicati.com/download",
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UpdateSeverity: null,
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ChangeInfo: null,
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Packages: null,
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Displayname: string.IsNullOrWhiteSpace(Duplicati.License.VersionNumbers.TAG) ? "Current" : Duplicati.License.VersionNumbers.TAG,
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Version: System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString(),
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ReleaseTime: new DateTime(0),
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ReleaseType:
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#if DEBUG
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"Debug"
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#else
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string.IsNullOrWhiteSpace(AutoUpdateSettings.BuildUpdateChannel) ? "Nightly" : AutoUpdateSettings.BuildUpdateChannel
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#endif
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);
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}
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}
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public static Version TryParseVersion(string str)
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{
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Version v;
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if (Version.TryParse(str, out v))
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return v;
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else
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return new Version(0, 0);
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}
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private static bool TestDirectoryIsWriteable(string path)
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{
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var p2 = System.IO.Path.Combine(path, "test-" + DateTime.UtcNow.ToString(DATETIME_FORMAT, System.Globalization.CultureInfo.InvariantCulture));
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var probe = System.IO.Directory.Exists(path) ? p2 : path;
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if (!System.IO.Directory.Exists(probe))
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{
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try
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{
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System.IO.Directory.CreateDirectory(probe);
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if (probe != path)
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System.IO.Directory.Delete(probe);
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return true;
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}
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catch
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{
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}
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}
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return false;
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}
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/// <summary>
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/// The unique machine installation ID
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/// </summary>
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public static string InstallID
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{
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get
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{
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try { return System.IO.File.ReadAllLines(System.IO.Path.Combine(UPDATEDIR, INSTALL_FILE)).FirstOrDefault(x => !string.IsNullOrWhiteSpace(x))?.Trim() ?? ""; }
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catch { }
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return "";
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}
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}
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/// <summary>
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/// The unique machine ID
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/// </summary>
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public static string MachineID
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{
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get
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{
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string machinedId = null;
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try { machinedId = System.IO.File.ReadAllLines(System.IO.Path.Combine(UPDATEDIR, MACHINE_FILE)).FirstOrDefault(x => !string.IsNullOrWhiteSpace(x))?.Trim() ?? ""; }
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catch { }
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return string.IsNullOrWhiteSpace(machinedId)
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? InstallID
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: machinedId;
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}
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}
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/// <summary>
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/// The package type ID
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/// </summary>
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public static string PackageTypeId
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{
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get
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{
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try { return System.IO.File.ReadAllLines(System.IO.Path.Combine(INSTALLATIONDIR, PACKAGE_TYPE_FILE)).FirstOrDefault(x => !string.IsNullOrWhiteSpace(x))?.Trim() ?? ""; }
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catch { }
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#if DEBUG
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return "debug";
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#else
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return "";
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#endif
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}
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}
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public static UpdateInfo CheckForUpdate(ReleaseType channel = ReleaseType.Unknown)
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{
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if (channel == ReleaseType.Unknown)
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channel = AutoUpdateSettings.DefaultUpdateChannel;
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foreach (var rawurl in MANIFEST_URLS)
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{
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var url = rawurl;
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// Attempt to match the url to change the channel if possible
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// This allows overrides to the URLs for deployment of custom builds,
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// but does not require that they adopt the channel system
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var match = AutoUpdateSettings.MATCH_AUTOUPDATE_URL.Match(url);
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if (match.Success)
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{
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var mg = match.Groups[AutoUpdateSettings.MATCH_UPDATE_URL_CHANNEL_GROUP];
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// Replace the channel name with the chosen channel
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url =
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url.Substring(0, mg.Index)
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+
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channel.ToString().ToLowerInvariant()
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+
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url.Substring(mg.Index + mg.Length);
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}
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try
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{
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if (SIGN_KEYS.Length == 0)
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throw new Exception("No signing keys are available, cannot check update");
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using (var tmpfile = new Library.Utility.TempFile())
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{
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using var request = new HttpRequestMessage(HttpMethod.Get, url);
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request.Headers.Add(System.Net.HttpRequestHeader.UserAgent.ToString(), string.Format("{0} v{1}{2}", APPNAME, SelfVersion.Version, string.IsNullOrWhiteSpace(InstallID) ? "" : " -" + InstallID));
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request.Headers.Add("X-Install-ID", InstallID);
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using var timeoutToken = new CancellationTokenSource();
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timeoutToken.CancelAfter(TimeSpan.FromSeconds(SHORT_OPERATION_TIMEOUT_SECONDS));
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HttpClientHelper.DefaultClient.DownloadFile(request, tmpfile, null, timeoutToken.Token).ConfigureAwait(false).GetAwaiter().GetResult();
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using (var fs = System.IO.File.OpenRead(tmpfile))
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{
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var verifyOps = SIGN_KEYS.Select(k => new JSONSignature.VerifyOperation(
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Algorithm: JSONSignature.RSA_SHA256,
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PublicKey: k.ToXmlString(false)
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));
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if (!JSONSignature.VerifyAtLeastOne(fs, verifyOps))
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throw new Exception("No valid signature found in manifest file");
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var update = JsonSerializer.Deserialize<UpdateInfo>(fs);
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if (TryParseVersion(update.Version) <= TryParseVersion(SelfVersion.Version))
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return null;
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// Don't install a debug update on a release build and vice versa
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if (string.Equals(SelfVersion.ReleaseType, "Debug", StringComparison.OrdinalIgnoreCase) && !string.Equals(update.ReleaseType, SelfVersion.ReleaseType, StringComparison.OrdinalIgnoreCase))
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return null;
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ReleaseType rt;
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if (!Enum.TryParse<ReleaseType>(update.ReleaseType, true, out rt))
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rt = ReleaseType.Unknown;
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// If the update is too low to be considered, skip it
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// Should never happen, but protects against mistakes in deployment
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if (rt > channel)
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return null;
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// In case the manifest does not contain a URL, use the one from this assembly
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if (string.IsNullOrWhiteSpace(update.GenericUpdatePageUrl))
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update = update with { GenericUpdatePageUrl = SelfVersion.GenericUpdatePageUrl };
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// In case there is no url, fall back to the project download page
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if (string.IsNullOrWhiteSpace(update.GenericUpdatePageUrl))
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update = update with { GenericUpdatePageUrl = "https://duplicati.com/download" };
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LastUpdateCheckVersion = update;
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return update;
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}
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}
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}
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catch (Exception ex)
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{
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if (OnError != null)
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OnError(ex);
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}
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}
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return null;
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}
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private static UpdateInfo ReadInstalledManifest(string folder)
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{
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var manifest = System.IO.Path.Combine(folder, UPDATE_MANIFEST_FILENAME);
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if (System.IO.File.Exists(manifest))
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{
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try
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{
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var verifyOps = SIGN_KEYS.Select(k => new JSONSignature.VerifyOperation(
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Algorithm: JSONSignature.RSA_SHA256,
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PublicKey: k.ToXmlString(false)
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));
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using (var fs = System.IO.File.OpenRead(manifest))
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{
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if (!JSONSignature.VerifyAtLeastOne(fs, verifyOps))
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throw new Exception("Installed manifest signature is invalid");
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return JsonSerializer.Deserialize<UpdateInfo>(fs);
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}
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}
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catch (Exception ex)
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{
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if (OnError != null)
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OnError(ex);
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}
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}
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return null;
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}
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public static bool DownloadUpdate(UpdateInfo version, PackageEntry package, string targetPath, Action<double> progress = null)
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{
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if (UPDATEDIR == null)
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return false;
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var updates = package.RemoteUrls.ToList();
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// If alternate update URLs are specified,
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// we look for packages there as well
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if (AutoUpdateSettings.UsesAlternateURLs)
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{
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var packagepath = new Library.Utility.Uri(updates[0]).Path;
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var packagename = packagepath.Split('/').Last();
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foreach (var alt_url in AutoUpdateSettings.URLs.Reverse())
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{
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var alt_uri = new Library.Utility.Uri(alt_url);
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var path_components = alt_uri.Path.Split('/');
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var path = string.Join("/", path_components.Take(path_components.Count() - 1).Union(new string[] { packagename }));
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var new_path = alt_uri.SetPath(path);
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updates.Insert(0, new_path.ToString());
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}
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}
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using (var tempfilename = new Library.Utility.TempFile())
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{
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foreach (var url in updates)
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{
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try
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{
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using (var tempfile = System.IO.File.Open(tempfilename, FileMode.Create, FileAccess.ReadWrite, FileShare.None))
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{
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Action<long> cb = null;
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if (progress != null)
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cb = (s) => { progress(Math.Min(1.0, Math.Max(0.0, (double)s / package.Length))); };
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using var request = new HttpRequestMessage(HttpMethod.Get, url);
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request.Headers.Add(System.Net.HttpRequestHeader.UserAgent.ToString(), string.Format("{0} v{1}", APPNAME, SelfVersion.Version));
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request.Headers.Add("X-Install-ID", InstallID);
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using var timeoutToken = new CancellationTokenSource();
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timeoutToken.CancelAfter(TimeSpan.FromSeconds(DOWNLOAD_OPERATION_TIMEOUT_SECONDS));
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HttpClientHelper.DefaultClient.DownloadFile(request, tempfile, cb, timeoutToken.Token).ConfigureAwait(false).GetAwaiter().GetResult();
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var sha256 = System.Security.Cryptography.SHA256.Create();
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var md5 = System.Security.Cryptography.MD5.Create();
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if (tempfile.Length != package.Length)
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throw new Exception(string.Format("Invalid file size {0}, expected {1} for {2}", tempfile.Length, package.Length, url));
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tempfile.Position = 0;
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var sha256hash = Convert.ToBase64String(sha256.ComputeHash(tempfile));
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if (sha256hash != package.SHA256)
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throw new Exception(string.Format("Damaged or corrupted file, sha256 mismatch for {0}", url));
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tempfile.Position = 0;
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var md5hash = Convert.ToBase64String(md5.ComputeHash(tempfile));
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if (md5hash != package.MD5)
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throw new Exception(string.Format("Damaged or corrupted file, md5 mismatch for {0}", url));
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}
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File.Copy(tempfilename, targetPath, true);
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return true;
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}
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catch (Exception ex)
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{
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if (OnError != null)
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OnError(ex);
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}
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}
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}
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return false;
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}
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/// <summary>
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/// Helper method to create a signed manifest file
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/// </summary>
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/// <param name="key">The key used for signing the manifest</param>
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/// <param name="sourcedata">The template content in JSON format</param>
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/// <param name="outputfolder">The folder where the signed manifest will be written to</param>
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/// <param name="version">The version of the manifest</param>
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/// <param name="incompatibleUpdateUrl">The URL to use for incompatible updates</param>
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/// <param name="genericUpdatePageUrl">The URL to use for generic updates</param>
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public static void CreateSignedManifest(IEnumerable<System.Security.Cryptography.RSA> keys, string sourcedata, string outputfolder, string version = null, string incompatibleUpdateUrl = null, string genericUpdatePageUrl = null, string releaseType = null, IEnumerable<PackageEntry> packages = null)
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{
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// Read the existing manifest
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var remoteManifest = JsonSerializer.Deserialize<UpdateInfo>(string.IsNullOrWhiteSpace(sourcedata) ? "{}" : sourcedata);
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if (remoteManifest.ReleaseTime.Ticks == 0)
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remoteManifest = remoteManifest with { ReleaseTime = DateTime.UtcNow };
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// No files to update with are allowed, as we currently do not use the information
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if (remoteManifest.Packages == null)
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remoteManifest = remoteManifest with { Packages = Array.Empty<PackageEntry>() };
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remoteManifest = remoteManifest with
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{
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PackageUpdaterVersion = SUPPORTED_PACKAGE_UPDATER_VERSION,
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MinimumCompatibleVersion = 2
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};
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if (version != null)
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remoteManifest = remoteManifest with { Version = version.ToString() };
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if (!string.IsNullOrWhiteSpace(incompatibleUpdateUrl))
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remoteManifest = remoteManifest with { IncompatibleUpdateUrl = incompatibleUpdateUrl };
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if (!string.IsNullOrWhiteSpace(genericUpdatePageUrl))
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remoteManifest = remoteManifest with { GenericUpdatePageUrl = genericUpdatePageUrl };
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if (!string.IsNullOrWhiteSpace(releaseType))
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remoteManifest = remoteManifest with { ReleaseType = releaseType };
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if (packages != null)
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remoteManifest = remoteManifest with { Packages = packages.ToArray() };
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if (string.IsNullOrWhiteSpace(remoteManifest.IncompatibleUpdateUrl))
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remoteManifest = remoteManifest with { IncompatibleUpdateUrl = remoteManifest.GenericUpdatePageUrl };
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if (string.IsNullOrWhiteSpace(remoteManifest.IncompatibleUpdateUrl))
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throw new Exception($"Field must be set: {nameof(remoteManifest.IncompatibleUpdateUrl)}");
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if (string.IsNullOrWhiteSpace(remoteManifest.GenericUpdatePageUrl))
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throw new Exception($"Field must be set: {nameof(remoteManifest.GenericUpdatePageUrl)}");
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if (string.IsNullOrWhiteSpace(remoteManifest.Version))
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throw new Exception($"Field must be set: {nameof(remoteManifest.Version)}");
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if (string.IsNullOrWhiteSpace(remoteManifest.ReleaseType))
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throw new Exception($"Field must be set: {nameof(remoteManifest.ReleaseType)}");
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// Write a signed manifest for upload
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using (var tf = new TempFile())
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{
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using (var ms = new MemoryStream())
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{
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JsonSerializer.Serialize<UpdateInfo>(ms, remoteManifest, new JsonSerializerOptions { WriteIndented = false });
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ms.Position = 0;
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var signops = keys.Select(k => new JSONSignature.SignOperation(
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Algorithm: JSONSignature.RSA_SHA256,
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PublicKey: k.ToXmlString(false),
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PrivateKey: k.ToXmlString(true)
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));
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using (var fs = File.Create(tf))
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JSONSignature.SignAsync(ms, fs, signops).ConfigureAwait(false).GetAwaiter().GetResult();
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}
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// Validate that the written file can also be read
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using (var fs = File.OpenRead(tf))
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{
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var validSigs = JSONSignature.Verify(fs, keys.Select(k => new JSONSignature.VerifyOperation(
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Algorithm: JSONSignature.RSA_SHA256,
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PublicKey: k.ToXmlString(false)
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)));
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if (validSigs.Count() != keys.Count())
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throw new Exception("Failed to verify all signatures after signing");
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var deserialized = JsonSerializer.Deserialize<UpdateInfo>(fs);
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if (deserialized == null || deserialized.Version != remoteManifest.Version)
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throw new Exception("Failed to deserialize the signed manifest");
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}
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File.Move(tf, Path.Combine(outputfolder, UPDATE_MANIFEST_FILENAME));
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}
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}
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}
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}
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