782 lines
27 KiB
C#
782 lines
27 KiB
C#
// SparkleShare, a collaboration and sharing tool.
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// Copyright (C) 2010 Hylke Bons <hylkebons@gmail.com>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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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.Net;
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using System.Net.Security;
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using System.Security.Cryptography.X509Certificates;
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using System.Text.RegularExpressions;
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using System.Threading;
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using System.Security.Cryptography;
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using SparkleLib;
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namespace SparkleShare {
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public abstract class SparkleControllerBase {
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public SparkleRepoBase [] Repositories {
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get {
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lock (this.repo_lock)
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return this.repositories.GetRange (0, this.repositories.Count).ToArray ();
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}
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}
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public bool RepositoriesLoaded { get; private set;}
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private List<SparkleRepoBase> repositories = new List<SparkleRepoBase> ();
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public string FoldersPath { get; private set; }
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public double ProgressPercentage = 0.0;
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public string ProgressSpeed = "";
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public event ShowSetupWindowEventHandler ShowSetupWindowEvent = delegate { };
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public delegate void ShowSetupWindowEventHandler (PageType page_type);
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public event Action ShowAboutWindowEvent = delegate { };
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public event Action ShowEventLogWindowEvent = delegate { };
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public event FolderFetchedEventHandler FolderFetched = delegate { };
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public delegate void FolderFetchedEventHandler (string remote_url, string [] warnings);
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public event FolderFetchErrorHandler FolderFetchError = delegate { };
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public delegate void FolderFetchErrorHandler (string remote_url, string [] errors);
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public event FolderFetchingHandler FolderFetching = delegate { };
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public delegate void FolderFetchingHandler (double percentage);
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public event Action FolderListChanged = delegate { };
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public event Action OnIdle = delegate { };
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public event Action OnSyncing = delegate { };
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public event Action OnError = delegate { };
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public event InviteReceivedHandler InviteReceived = delegate { };
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public delegate void InviteReceivedHandler (SparkleInvite invite);
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public event NotificationRaisedEventHandler NotificationRaised = delegate { };
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public delegate void NotificationRaisedEventHandler (SparkleChangeSet change_set);
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public event AlertNotificationRaisedEventHandler AlertNotificationRaised = delegate { };
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public delegate void AlertNotificationRaisedEventHandler (string title, string message);
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public bool FirstRun {
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get {
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return this.config.User.Email.Equals ("Unknown");
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}
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}
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public List<string> Folders {
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get {
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List<string> folders = this.config.Folders;
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return folders;
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}
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}
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public string ConfigPath {
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get {
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return this.config.LogFilePath;
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}
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}
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public SparkleUser CurrentUser {
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get {
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return this.config.User;
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}
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set {
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this.config.User = value;
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}
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}
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public bool NotificationsEnabled {
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get {
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string notifications_enabled = this.config.GetConfigOption ("notifications");
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if (string.IsNullOrEmpty (notifications_enabled)) {
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this.config.SetConfigOption ("notifications", bool.TrueString);
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return true;
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} else {
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return notifications_enabled.Equals (bool.TrueString);
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}
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}
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}
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public abstract string EventLogHTML { get; }
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public abstract string DayEntryHTML { get; }
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public abstract string EventEntryHTML { get; }
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// Path where the plugins are kept
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public abstract string PluginsPath { get; }
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// Enables SparkleShare to start automatically at login
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public abstract void CreateStartupItem ();
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// Installs the sparkleshare:// protocol handler
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public abstract void InstallProtocolHandler ();
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// Adds the SparkleShare folder to the user's
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// list of bookmarked places
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public abstract void AddToBookmarks ();
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// Creates the SparkleShare folder in the user's home folder
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public abstract bool CreateSparkleShareFolder ();
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// Opens the SparkleShare folder or an (optional) subfolder
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public abstract void OpenFolder (string path);
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// Opens a file with the appropriate application
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public abstract void OpenFile (string path);
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private SparkleConfig config;
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private SparkleFetcherBase fetcher;
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private FileSystemWatcher watcher;
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private Object repo_lock = new Object ();
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private Object check_repos_lock = new Object ();
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public SparkleControllerBase ()
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{
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string app_data_path = Environment.GetFolderPath (Environment.SpecialFolder.ApplicationData);
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string config_path = Path.Combine (app_data_path, "sparkleshare");
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this.config = new SparkleConfig (config_path, "config.xml");
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SparkleConfig.DefaultConfig = this.config;
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FoldersPath = this.config.FoldersPath;
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}
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public virtual void Initialize ()
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{
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SparklePlugin.PluginsPath = PluginsPath;
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InstallProtocolHandler ();
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// Create the SparkleShare folder and add it to the bookmarks
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if (CreateSparkleShareFolder ())
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AddToBookmarks ();
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if (FirstRun) {
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this.config.SetConfigOption ("notifications", bool.TrueString);
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} else {
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string keys_path = Path.GetDirectoryName (this.config.FullPath);
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string key_file_path = "";
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foreach (string file_name in Directory.GetFiles (keys_path)) {
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if (file_name.EndsWith (".key")) {
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key_file_path = Path.Combine (keys_path, file_name);
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SparkleKeys.ImportPrivateKey (key_file_path);
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break;
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}
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}
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if (!string.IsNullOrEmpty (key_file_path)) {
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string public_key_file_path = key_file_path + ".pub";
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string link_code_file_path = Path.Combine (FoldersPath, CurrentUser.Name + "'s link code.txt");
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// Create an easily accessible copy of the public
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// key in the user's SparkleShare folder
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if (File.Exists (public_key_file_path) && !File.Exists (link_code_file_path))
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File.Copy (public_key_file_path, link_code_file_path, true);
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CurrentUser.PublicKey = File.ReadAllText (public_key_file_path);
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}
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SparkleKeys.ListPrivateKeys ();
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}
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// Watch the SparkleShare folder
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this.watcher = new FileSystemWatcher () {
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Filter = "*",
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IncludeSubdirectories = false,
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Path = FoldersPath
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};
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watcher.Deleted += OnFolderActivity;
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watcher.Created += OnFolderActivity;
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watcher.Renamed += OnFolderActivity;
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watcher.EnableRaisingEvents = true;
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}
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public void UIHasLoaded ()
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{
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if (FirstRun) {
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ShowSetupWindow (PageType.Setup);
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} else {
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new Thread (() => {
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CheckRepositories ();
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RepositoriesLoaded = true;
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FolderListChanged ();
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}).Start ();
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}
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}
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private void AddRepository (string folder_path)
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{
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SparkleRepoBase repo = null;
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string folder_name = Path.GetFileName (folder_path);
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string backend = this.config.GetBackendForFolder (folder_name);
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try {
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repo = (SparkleRepoBase) Activator.CreateInstance (
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Type.GetType ("SparkleLib." + backend + ".SparkleRepo, SparkleLib." + backend),
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new object [] { folder_path, this.config }
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);
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} catch (Exception e) {
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SparkleLogger.LogInfo ("Controller",
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"Failed to load '" + backend + "' backend for '" + folder_name + "': " + e.Message);
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return;
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}
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repo.ChangesDetected += delegate {
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UpdateState ();
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};
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repo.SyncStatusChanged += delegate (SyncStatus status) {
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if (status == SyncStatus.Idle) {
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ProgressPercentage = 0.0;
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ProgressSpeed = "";
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}
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UpdateState ();
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};
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repo.ProgressChanged += delegate (double percentage, string speed) {
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ProgressPercentage = percentage;
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ProgressSpeed = speed;
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UpdateState ();
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};
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repo.NewChangeSet += delegate (SparkleChangeSet change_set) {
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if (NotificationsEnabled)
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NotificationRaised (change_set);
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};
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repo.ConflictResolved += delegate {
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if (NotificationsEnabled)
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AlertNotificationRaised ("Conflict detected",
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"Don't worry, SparkleShare made a copy of each conflicting file.");
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};
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this.repositories.Add (repo);
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repo.Initialize ();
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}
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private void RemoveRepository (string folder_path)
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{
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for (int i = 0; i < this.repositories.Count; i++) {
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SparkleRepoBase repo = this.repositories [i];
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if (repo.LocalPath.Equals (folder_path)) {
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repo.Dispose ();
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this.repositories.Remove (repo);
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repo = null;
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return;
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}
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}
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}
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private void CheckRepositories ()
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{
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lock (this.check_repos_lock) {
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string path = this.config.FoldersPath;
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// Detect any renames
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foreach (string folder_path in Directory.GetDirectories (path)) {
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string folder_name = Path.GetFileName (folder_path);
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if (folder_name.Equals (".tmp"))
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continue;
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if (this.config.GetIdentifierForFolder (folder_name) == null) {
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string identifier_file_path = Path.Combine (folder_path, ".sparkleshare");
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if (!File.Exists (identifier_file_path))
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continue;
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string identifier = File.ReadAllText (identifier_file_path).Trim ();
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if (this.config.IdentifierExists (identifier)) {
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RemoveRepository (folder_path);
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this.config.RenameFolder (identifier, folder_name);
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string new_folder_path = Path.Combine (path, folder_name);
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AddRepository (new_folder_path);
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SparkleLogger.LogInfo ("Controller",
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"Renamed folder with identifier " + identifier + " to '" + folder_name + "'");
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}
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}
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}
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// Remove any deleted folders
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foreach (string folder_name in this.config.Folders) {
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string folder_path = new SparkleFolder (folder_name).FullPath;
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if (!Directory.Exists (folder_path)) {
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this.config.RemoveFolder (folder_name);
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RemoveRepository (folder_path);
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SparkleLogger.LogInfo ("Controller", "Removed folder '" + folder_name + "' from config");
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} else {
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AddRepository (folder_path);
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}
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}
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// Remove any duplicate folders
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string previous_name = "";
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foreach (string folder_name in this.config.Folders) {
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if (!string.IsNullOrEmpty (previous_name) && folder_name.Equals (previous_name))
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this.config.RemoveFolder (folder_name);
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else
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previous_name = folder_name;
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}
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FolderListChanged ();
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}
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}
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// Fires events for the current syncing state
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private void UpdateState ()
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{
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bool has_unsynced_repos = false;
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foreach (SparkleRepoBase repo in Repositories) {
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if (repo.Status == SyncStatus.SyncDown || repo.Status == SyncStatus.SyncUp || repo.IsBuffering) {
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OnSyncing ();
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return;
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} else if (repo.HasUnsyncedChanges) {
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has_unsynced_repos = true;
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}
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}
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if (has_unsynced_repos)
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OnError ();
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else
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OnIdle ();
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}
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private void ClearFolderAttributes (string path)
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{
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if (!Directory.Exists (path))
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return;
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string [] folders = Directory.GetDirectories (path);
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foreach (string folder in folders)
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ClearFolderAttributes (folder);
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string [] files = Directory.GetFiles(path);
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foreach (string file in files)
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if (!IsSymlink (file))
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File.SetAttributes (file, FileAttributes.Normal);
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}
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private bool IsSymlink (string file)
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{
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FileAttributes attributes = File.GetAttributes (file);
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return ((attributes & FileAttributes.ReparsePoint) == FileAttributes.ReparsePoint);
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}
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public void OnFolderActivity (object o, FileSystemEventArgs args)
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{
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if (args != null && args.FullPath.EndsWith (".xml") &&
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args.ChangeType == WatcherChangeTypes.Created) {
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HandleInvite (args);
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return;
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} else {
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if (Directory.Exists (args.FullPath) && args.ChangeType == WatcherChangeTypes.Created)
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return;
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CheckRepositories ();
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}
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}
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public void HandleInvite (FileSystemEventArgs args)
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{
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if (this.fetcher != null &&
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this.fetcher.IsActive) {
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AlertNotificationRaised ("SparkleShare Setup seems busy", "Please wait for it to finish");
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} else {
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SparkleInvite invite = new SparkleInvite (args.FullPath);
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// It may be that the invite we received a path to isn't
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// fully downloaded yet, so we try to read it several times
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int tries = 0;
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while (!invite.IsValid) {
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Thread.Sleep (100);
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invite = new SparkleInvite (args.FullPath);
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tries++;
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if (tries > 10) {
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AlertNotificationRaised ("Oh noes!", "This invite seems screwed up...");
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break;
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}
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}
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if (invite.IsValid)
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InviteReceived (invite);
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File.Delete (args.FullPath);
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}
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}
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public void StartFetcher (string address, string required_fingerprint,
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string remote_path, string announcements_url, bool fetch_prior_history)
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{
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if (announcements_url != null)
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announcements_url = announcements_url.Trim ();
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string tmp_path = this.config.TmpPath;
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if (!Directory.Exists (tmp_path)) {
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Directory.CreateDirectory (tmp_path);
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File.SetAttributes (tmp_path, File.GetAttributes (tmp_path) | FileAttributes.Hidden);
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}
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string canonical_name = Path.GetFileNameWithoutExtension (remote_path);
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string tmp_folder = Path.Combine (tmp_path, canonical_name);
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string backend = SparkleFetcherBase.GetBackend (remote_path);
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try {
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this.fetcher = (SparkleFetcherBase) Activator.CreateInstance (
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Type.GetType ("SparkleLib." + backend + ".SparkleFetcher, SparkleLib." + backend),
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address, required_fingerprint, remote_path, tmp_folder, fetch_prior_history
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);
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} catch (Exception e) {
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SparkleLogger.LogInfo ("Controller",
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"Failed to load '" + backend + "' backend for '" + canonical_name + "' " + e.Message);
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FolderFetchError (Path.Combine (address, remote_path).Replace (@"\", "/"),
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new string [] {"Failed to load \"" + backend + "\" backend for \"" + canonical_name + "\""});
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return;
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}
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this.fetcher.Finished += delegate (bool repo_is_encrypted, bool repo_is_empty, string [] warnings) {
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if (repo_is_encrypted && repo_is_empty) {
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ShowSetupWindowEvent (PageType.CryptoSetup);
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} else if (repo_is_encrypted) {
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ShowSetupWindowEvent (PageType.CryptoPassword);
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} else {
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FinishFetcher ();
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}
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};
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this.fetcher.Failed += delegate {
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FolderFetchError (this.fetcher.RemoteUrl.ToString (), this.fetcher.Errors);
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StopFetcher ();
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};
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this.fetcher.ProgressChanged += delegate (double percentage) {
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FolderFetching (percentage);
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};
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this.fetcher.Start ();
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}
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public void StopFetcher ()
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{
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this.fetcher.Stop ();
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if (Directory.Exists (this.fetcher.TargetFolder)) {
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try {
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Directory.Delete (this.fetcher.TargetFolder, true);
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SparkleLogger.LogInfo ("Controller", "Deleted " + this.fetcher.TargetFolder);
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} catch (Exception e) {
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SparkleLogger.LogInfo ("Controller",
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"Failed to delete " + this.fetcher.TargetFolder + ": " + e.Message);
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}
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}
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this.fetcher.Dispose ();
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this.fetcher = null;
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}
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public void FinishFetcher (string password)
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{
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this.fetcher.EnableFetchedRepoCrypto (password);
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FinishFetcher ();
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}
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public void FinishFetcher ()
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{
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this.watcher.EnableRaisingEvents = false;
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this.fetcher.Complete ();
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string canonical_name = Path.GetFileNameWithoutExtension (this.fetcher.RemoteUrl.AbsolutePath);
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bool target_folder_exists = Directory.Exists (
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Path.Combine (this.config.FoldersPath, canonical_name));
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// Add a numbered suffix to the name if a folder with the same name
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// already exists. Example: "Folder (2)"
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int suffix = 1;
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while (target_folder_exists) {
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suffix++;
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target_folder_exists = Directory.Exists (
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Path.Combine (this.config.FoldersPath, canonical_name + " (" + suffix + ")"));
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}
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string target_folder_name = canonical_name;
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if (suffix > 1)
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target_folder_name += " (" + suffix + ")";
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string target_folder_path = Path.Combine (this.config.FoldersPath, target_folder_name);
|
|
|
|
try {
|
|
ClearFolderAttributes (this.fetcher.TargetFolder);
|
|
Directory.Move (this.fetcher.TargetFolder, target_folder_path);
|
|
|
|
} catch (Exception e) {
|
|
SparkleLogger.LogInfo ("Controller", "Error moving directory: " + e.Message);
|
|
return;
|
|
}
|
|
|
|
string backend = SparkleFetcherBase.GetBackend (this.fetcher.RemoteUrl.AbsolutePath);
|
|
|
|
this.config.AddFolder (target_folder_name, this.fetcher.Identifier,
|
|
this.fetcher.RemoteUrl.ToString (), backend);
|
|
|
|
FolderFetched (this.fetcher.RemoteUrl.ToString (), this.fetcher.Warnings.ToArray ());
|
|
|
|
/* TODO
|
|
if (!string.IsNullOrEmpty (announcements_url)) {
|
|
this.config.SetFolderOptionalAttribute (
|
|
target_folder_name, "announcements_url", announcements_url);
|
|
*/
|
|
|
|
AddRepository (target_folder_path);
|
|
FolderListChanged ();
|
|
|
|
this.fetcher.Dispose ();
|
|
this.fetcher = null;
|
|
|
|
this.watcher.EnableRaisingEvents = true;
|
|
}
|
|
|
|
|
|
public bool CheckPassword (string password)
|
|
{
|
|
return this.fetcher.IsFetchedRepoPasswordCorrect (password);
|
|
}
|
|
|
|
|
|
public void ShowSetupWindow (PageType page_type)
|
|
{
|
|
ShowSetupWindowEvent (page_type);
|
|
}
|
|
|
|
|
|
public void ShowAboutWindow ()
|
|
{
|
|
ShowAboutWindowEvent ();
|
|
}
|
|
|
|
|
|
public void ShowEventLogWindow ()
|
|
{
|
|
ShowEventLogWindowEvent ();
|
|
}
|
|
|
|
|
|
public void OpenSparkleShareFolder ()
|
|
{
|
|
OpenFolder (this.config.FoldersPath);
|
|
}
|
|
|
|
|
|
public void OpenSparkleShareFolder (string name)
|
|
{
|
|
OpenFolder (new SparkleFolder (name).FullPath);
|
|
}
|
|
|
|
|
|
public void ToggleNotifications () {
|
|
bool notifications_enabled = this.config.GetConfigOption ("notifications").Equals (bool.TrueString);
|
|
this.config.SetConfigOption ("notifications", (!notifications_enabled).ToString ());
|
|
}
|
|
|
|
|
|
private List<string> skipped_avatars = new List<string> ();
|
|
|
|
public string GetAvatar (string email, int size)
|
|
{
|
|
ServicePointManager.ServerCertificateValidationCallback = GetAvatarValidationCallBack;
|
|
|
|
string fetch_avatars_option = this.config.GetConfigOption ("fetch_avatars");
|
|
|
|
if (fetch_avatars_option != null &&
|
|
fetch_avatars_option.Equals (bool.FalseString)) {
|
|
|
|
return null;
|
|
}
|
|
|
|
email = email.ToLower ();
|
|
|
|
if (this.skipped_avatars.Contains (email))
|
|
return null;
|
|
|
|
string avatars_path = new string [] { Path.GetDirectoryName (this.config.FullPath),
|
|
"avatars", size + "x" + size }.Combine ();
|
|
|
|
string avatar_file_path = Path.Combine (avatars_path, email.MD5 () + ".png");
|
|
|
|
if (File.Exists (avatar_file_path)) {
|
|
if (new FileInfo (avatar_file_path).CreationTime < DateTime.Now.AddDays (-1))
|
|
File.Delete (avatar_file_path);
|
|
else
|
|
return avatar_file_path;
|
|
}
|
|
|
|
WebClient client = new WebClient ();
|
|
string url = "https://gravatar.com/avatar/" + email.MD5 () + ".png?s=" + size + "&d=404";
|
|
|
|
try {
|
|
byte [] buffer = client.DownloadData (url);
|
|
|
|
if (buffer.Length > 255) {
|
|
if (!Directory.Exists (avatars_path)) {
|
|
Directory.CreateDirectory (avatars_path);
|
|
SparkleLogger.LogInfo ("Controller", "Created '" + avatars_path + "'");
|
|
}
|
|
|
|
File.WriteAllBytes (avatar_file_path, buffer);
|
|
SparkleLogger.LogInfo ("Controller", "Fetched " + size + "x" + size + " avatar for " + email);
|
|
|
|
return avatar_file_path;
|
|
|
|
} else {
|
|
return null;
|
|
}
|
|
|
|
} catch (WebException e) {
|
|
SparkleLogger.LogInfo ("Controller", "Error fetching avatar for " + email + ": " + e.Message);
|
|
skipped_avatars.Add (email);
|
|
|
|
return null;
|
|
}
|
|
}
|
|
|
|
|
|
private bool GetAvatarValidationCallBack (Object sender, X509Certificate certificate,
|
|
X509Chain chain, SslPolicyErrors errors)
|
|
{
|
|
X509Certificate2 certificate2 = new X509Certificate2 (certificate.GetRawCertData ());
|
|
|
|
// On some systems (mostly Linux) we can't assume the needed certificates are
|
|
// available, so we have to check the certificate's SHA-1 fingerprint manually.
|
|
//
|
|
// Obtained from https://www.gravatar.com/ on Aug 18 2012 and
|
|
// expires on Oct 24 2015.
|
|
string gravatar_cert_fingerprint = "217ACB08C0A1ACC23A21B6ECDE82CD45E14DEC19";
|
|
|
|
if (certificate2.Thumbprint.Equals (gravatar_cert_fingerprint)) {
|
|
return true;
|
|
|
|
} else {
|
|
SparkleLogger.LogInfo ("Controller",
|
|
"Not connecting to https://www.gravatar.com/ due to invalid certificate");
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
public string AssignAvatar (string s)
|
|
{
|
|
string hash = "0" + s.MD5 ().Substring (0, 8);
|
|
string numbers = Regex.Replace (hash, "[a-z]", "");
|
|
int number = int.Parse (numbers);
|
|
string letters = "abcdefghijklmnopqrstuvwxyz";
|
|
|
|
return "avatar-" + letters [(number % 11)] + ".png";
|
|
}
|
|
|
|
|
|
// Format a file size nicely with small caps.
|
|
// Example: 1048576 becomes "1 ᴍʙ"
|
|
public string FormatSize (double byte_count)
|
|
{
|
|
if (byte_count >= 1099511627776)
|
|
return String.Format ("{0:##.##} ᴛʙ", Math.Round (byte_count / 1099511627776, 1));
|
|
else if (byte_count >= 1073741824)
|
|
return String.Format ("{0:##.##} ɢʙ", Math.Round (byte_count / 1073741824, 1));
|
|
else if (byte_count >= 1048576)
|
|
return String.Format ("{0:##.##} ᴍʙ", Math.Round (byte_count / 1048576, 0));
|
|
else if (byte_count >= 1024)
|
|
return String.Format ("{0:##.##} ᴋʙ", Math.Round (byte_count / 1024, 0));
|
|
else
|
|
return byte_count.ToString () + " bytes";
|
|
}
|
|
|
|
|
|
public virtual void Quit ()
|
|
{
|
|
foreach (SparkleRepoBase repo in Repositories)
|
|
repo.Dispose ();
|
|
|
|
Environment.Exit (0);
|
|
}
|
|
}
|
|
}
|