1 | /* |
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2 | * Jeti, a Java Jabber client, Copyright (C) 2003 E.S. de Boer |
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3 | * |
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4 | * This program is free software; you can redistribute it and/or modify |
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5 | * it under the terms of the GNU General Public License as published by |
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6 | * the Free Software Foundation; either version 2 of the License, or |
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7 | * (at your option) any later version. |
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8 | * |
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9 | * This program is distributed in the hope that it will be useful, |
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10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 | * GNU General Public License for more details. |
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13 | * |
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14 | * You should have received a copy of the GNU General Public License |
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15 | * along with this program; if not, write to the Free Software |
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16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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17 | * |
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18 | * For questions, comments etc, |
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19 | * use the website at http://jeti.jabberstudio.org |
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20 | * or mail/im me at jeti@jabber.org |
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21 | * |
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22 | * created 2001 |
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23 | */ |
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24 | |
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25 | package nu.fw.jeti.backend; |
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26 | |
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27 | import java.io.BufferedWriter; |
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28 | import java.io.IOException; |
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29 | import java.io.OutputStream; |
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30 | import java.io.OutputStreamWriter; |
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31 | import java.io.UnsupportedEncodingException; |
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32 | import java.io.Writer; |
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33 | import java.net.Socket; |
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34 | import java.util.LinkedList; |
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35 | |
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36 | import nu.fw.jeti.jabber.elements.Packet; |
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37 | import nu.fw.jeti.plugins.PluginsInfo; |
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38 | import nu.fw.jeti.util.Preferences; |
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39 | |
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40 | |
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41 | /** |
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42 | * @author E.S. de Boer |
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43 | */ |
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44 | |
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45 | public class Output extends Thread |
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46 | { |
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47 | private Writer out; |
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48 | private LinkedList queue = new LinkedList(); |
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49 | private volatile boolean isRunning=true; |
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50 | private volatile boolean closeSocketOnExit=true; |
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51 | private Socket socket; |
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52 | public static final int KEEP_ALIVE = 60000; |
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53 | private KeepAlivePacket keepAlivePacket = new KeepAlivePacket(); |
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54 | private ConnectionPacketReceiver backend; |
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55 | private volatile boolean authenticated = false; |
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56 | private String host; |
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57 | |
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58 | public Output(Socket socket,String host,ConnectionPacketReceiver backend,OutputStream stream) throws IOException |
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59 | { |
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60 | this.socket = socket; |
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61 | this.backend = backend; |
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62 | this.host = host; |
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63 | try{ |
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64 | out = new BufferedWriter(new OutputStreamWriter(stream,"UTF8")); |
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65 | }catch (UnsupportedEncodingException e){e.printStackTrace();} |
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66 | writeHeader(); |
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67 | start(); |
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68 | } |
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69 | |
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70 | public void writeHeader() throws IOException |
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71 | { |
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72 | //send stream init tag |
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73 | out.write("<?xml version='1.0' encoding='UTF-8'?>"); |
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74 | out.write("<stream:stream xmlns:stream='http://etherx.jabber.org/streams' "); |
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75 | out.write("xmlns='jabber:client' "); |
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76 | if(PluginsInfo.isPluginLoaded("xmpp"))out.write("version='1.0' "); |
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77 | out.write("to='"); |
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78 | out.write(host); |
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79 | String lang = Preferences.getString("jeti","language",null); |
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80 | if(lang!=null) |
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81 | { |
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82 | String country = Preferences.getString("jeti","country",null); |
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83 | if(country!=null)lang+="-"+country; |
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84 | out.write("' xml:lang='"); |
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85 | out.write(lang); |
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86 | } |
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87 | out.write("'>"); |
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88 | out.flush(); |
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89 | } |
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90 | |
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91 | public void send(Packet p) |
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92 | { |
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93 | if(isRunning) |
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94 | { |
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95 | synchronized(queue) |
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96 | { |
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97 | queue.addLast(p); |
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98 | queue.notifyAll(); |
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99 | } |
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100 | } |
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101 | } |
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102 | |
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103 | public void disconnect(boolean closeSocket) |
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104 | { |
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105 | this.closeSocketOnExit = closeSocket; |
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106 | isRunning = false; |
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107 | synchronized(queue){queue.notifyAll();} |
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108 | } |
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109 | |
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110 | public void setAuthenticated() |
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111 | { |
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112 | authenticated = true; |
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113 | } |
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114 | |
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115 | public final void run() |
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116 | { |
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117 | Packet packet; |
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118 | while ((isRunning) || (!queue.isEmpty())) |
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119 | { |
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120 | synchronized(queue) |
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121 | { |
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122 | if (queue.isEmpty()) |
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123 | { |
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124 | if(isRunning) |
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125 | { |
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126 | try |
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127 | { |
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128 | queue.wait(KEEP_ALIVE); |
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129 | } |
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130 | catch(InterruptedException e) |
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131 | { |
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132 | e.printStackTrace(); |
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133 | return; |
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134 | } |
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135 | if(authenticated && queue.isEmpty()) queue.add(keepAlivePacket); |
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136 | } |
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137 | continue; |
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138 | } |
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139 | else packet =(Packet) queue.removeFirst(); |
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140 | } |
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141 | //send packet |
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142 | String xml = packet.toString(); |
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143 | try |
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144 | { |
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145 | nu.fw.jeti.util.Log.sendXML(xml); |
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146 | out.write(xml); |
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147 | out.flush(); |
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148 | } |
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149 | catch(IOException e) |
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150 | { |
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151 | if(!socket.isClosed()) |
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152 | { |
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153 | nu.fw.jeti.util.Log.notSend(xml); |
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154 | if(isRunning) backend.outputDeath();//only reconnect if output thread in running status |
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155 | try{ |
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156 | System.out.println("closing socket"); |
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157 | socket.close(); |
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158 | } catch (IOException ex){ } |
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159 | } |
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160 | return; |
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161 | } |
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162 | } |
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163 | if(closeSocketOnExit && !socket.isClosed()) |
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164 | { |
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165 | try |
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166 | {//close stream |
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167 | out.write("</stream:stream>"); |
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168 | out.flush(); |
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169 | System.out.println("closing socket"); |
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170 | socket.close(); |
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171 | |
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172 | } |
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173 | catch(Exception e) |
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174 | {e.printStackTrace();} |
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175 | } |
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176 | } |
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177 | } |
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178 | |
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179 | class KeepAlivePacket extends Packet |
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180 | { |
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181 | public void appendToXML(StringBuffer xml) |
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182 | { |
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183 | xml.append(' '); |
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184 | } |
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185 | } |
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186 | |
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187 | /* |
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188 | * Overrides for emacs |
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189 | * Local variables: |
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190 | * tab-width: 4 |
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191 | * End: |
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192 | */ |
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