130 lines
4 KiB
C#
130 lines
4 KiB
C#
// SparkleShare, an instant update workflow to Git.
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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.Text;
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using System.Threading;
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using System.Security.Cryptography;
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using Meebey.SmartIrc4net;
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namespace SparkleLib {
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public enum NotificationServerType
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{
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Own,
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Central
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}
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// A persistent connection to the server that
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// listens for change notifications
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public class SparkleListener {
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private Thread Thread;
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// FIXME: The IrcClient is a public property because
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// extending it causes crashes
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public IrcClient Client;
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public readonly string Server;
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public readonly string FallbackServer;
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public readonly string Channel;
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public readonly string Nick;
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public SparkleListener (string server, string folder_name,
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string user_email, NotificationServerType type)
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{
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if (type == NotificationServerType.Own) {
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Server = server;
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} else {
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// This is SparkleShare's centralized notification service.
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// Don't worry, we only use this server as a backup if you
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// don't have your own. All data needed to connect is hashed and
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// we don't store any personal information ever.
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Server = "204.62.14.135";
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}
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if (!String.IsNullOrEmpty (user_email))
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Nick = SHA1 (folder_name + user_email + "sparkles");
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else
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Nick = SHA1 (DateTime.Now.ToString () + "sparkles");
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Nick = "s" + Nick.Substring (0, 7);
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Channel = "#" + SHA1 (server + folder_name + "sparkles");
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Client = new IrcClient () {
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PingTimeout = 180,
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PingInterval = 90
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};
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}
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// Starts a new thread and listens to the channel
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public void Listen ()
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{
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Thread = new Thread (
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new ThreadStart (delegate {
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try {
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// Connect, login, and join the channel
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Client.Connect (new string [] {Server}, 6667);
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Client.Login (Nick, Nick);
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Client.RfcJoin (Channel);
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// List to the channel, this blocks the thread
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Client.Listen ();
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Client.Disconnect ();
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} catch (Meebey.SmartIrc4net.ConnectionException e) {
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Console.WriteLine ("Could not connect: " + e.Message);
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}
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})
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);
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Thread.Start ();
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}
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public void Announce (string message)
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{
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Client.SendMessage (SendType.Message, Channel, message);
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}
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// Frees all resources for this Listener
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public void Dispose ()
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{
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Thread.Abort ();
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Thread.Join ();
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}
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// Creates an SHA-1 hash of input
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private string SHA1 (string s)
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{
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SHA1 sha1 = new SHA1CryptoServiceProvider ();
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Byte[] bytes = ASCIIEncoding.Default.GetBytes (s);
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Byte[] encoded_bytes = sha1.ComputeHash (bytes);
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return BitConverter.ToString (encoded_bytes).ToLower ().Replace ("-", "");
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}
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}
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}
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