139 lines
4.6 KiB
C#
139 lines
4.6 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 class SparkleListenerIrc : SparkleListenerBase {
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private Thread thread;
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private IrcClient client;
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private string nick;
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public SparkleListenerIrc (string server, string folder_identifier,
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NotificationServerType type) : base (server, folder_identifier, type)
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{
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if (type == NotificationServerType.Own) {
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base.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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base.server = "204.62.14.135";
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}
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// Try to get a uniqueish nickname
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this.nick = SHA1 (DateTime.Now.ToString ("ffffff") + "sparkles");
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// Most irc servers don't allow nicknames starting
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// with a number, so prefix an alphabetic character
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this.nick = "s" + this.nick.Substring (0, 7);
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// Hash and salt the folder identifier, so
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// nobody knows any possible folder details
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base.channel = "#" + SHA1 (folder_identifier + "sparkles");
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this.client = new IrcClient () {
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PingTimeout = 180,
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PingInterval = 90
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};
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this.client.OnConnected += delegate {
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OnConnected ();
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};
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this.client.OnDisconnected += delegate {
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OnDisconnected ();
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};
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this.client.OnChannelMessage += delegate (object o, IrcEventArgs args) {
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string message = args.Data.Message.Trim ();
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OnRemoteChange (message);
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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 override void Connect ()
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{
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SparkleHelpers.DebugInfo ("ListenerIrc", "Connecting to " + base.channel + " on " + base.server);
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this.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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this.client.Connect (new string [] {base.server}, 6667);
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this.client.Login (this.nick, this.nick);
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this.client.RfcJoin (base.channel);
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// List to the channel, this blocks the thread
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this.client.Listen ();
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// Disconnect when we time out
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this.client.Disconnect ();
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} catch (Meebey.SmartIrc4net.ConnectionException e) {
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SparkleHelpers.DebugInfo ("ListenerIrc", "Could not connect to " + base.channel + " on " + base.server + ": " + e.Message);
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}
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})
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);
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this.thread.Start ();
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}
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public override void Announce (string message)
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{
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this.client.SendMessage (SendType.Message, base.channel, message);
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}
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public override bool IsConnected {
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get {
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return this.client.IsConnected;
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}
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}
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public override void Dispose ()
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{
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this.thread.Abort ();
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this.thread.Join ();
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}
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// Creates a 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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