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1 #!/usr/bin/php |
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2 <?php |
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3 /* Copyright 2010 Ivo Smits <Ivo@UCIS.nl>. All rights reserved. |
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4 Redistribution and use in source and binary forms, with or without modification, are |
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5 permitted provided that the following conditions are met: |
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6 |
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7 1. Redistributions of source code must retain the above copyright notice, this list of |
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8 conditions and the following disclaimer. |
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9 |
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10 2. Redistributions in binary form must reproduce the above copyright notice, this list |
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11 of conditions and the following disclaimer in the documentation and/or other materials |
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12 provided with the distribution. |
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13 |
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14 THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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15 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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16 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR |
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17 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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18 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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19 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
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20 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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21 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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22 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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23 |
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24 The views and conclusions contained in the software and documentation are those of the |
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25 authors and should not be interpreted as representing official policies, either expressed |
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26 or implied, of Ivo Smits.*/ |
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27 |
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28 print("UCIS IRC Relay bot (c) 2010 Ivo Smits <Ivo@UCIS.nl>\n"); |
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29 print("More information: http://wiki.ucis.nl/IRCRelay\n"); |
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30 print("\n"); |
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31 |
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32 if (defined('app_loaded')) return; |
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33 define('app_loaded', TRUE); |
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34 if (!isset($config)) include './config.php'; |
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35 |
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36 class Network { |
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37 public $key = NULL; |
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38 public $name = NULL; |
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39 public $socket = NULL; |
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40 public $server = NULL; |
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41 public $port = 6667; |
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42 public $nick = NULL; |
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43 public $realnick = NULL; |
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44 public $connected = FALSE; |
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45 public $connecting = FALSE; |
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46 public $timeout = 0; |
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47 public $channels = array(); |
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48 public $addressfamily = AF_INET; |
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49 public $active = FALSE; |
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50 public $ident = 'none'; |
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51 public $realname = 'Not set - http://wiki.qontrol.nl/IRCRelay'; |
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52 public $debug = FALSE; |
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53 } |
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54 class NetworkChannel { |
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55 public $network; |
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56 public $channel; |
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57 public $name; |
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58 public $display; |
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59 } |
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60 class Channel { |
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61 public $name = NULL; |
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62 public $udpmsg = FALSE; |
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63 public $links = array(); |
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64 public function __construct($name) { $this->name = $name; } |
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65 } |
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66 |
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67 $networks = array(); |
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68 $channels = array(); |
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69 $udpmsg = NULL; |
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70 $udpmsg_config = NULL; |
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71 $udpmsg_connected = FALSE; |
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72 $udpmsg_timer = 0; |
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73 $udpmsg_buffer = ''; |
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74 $udpmsg_channels = array(); |
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75 $status = NULL; |
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76 $adminpass = NULL; |
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77 |
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78 srand(); |
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79 |
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80 prepare(); |
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81 configure(); |
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82 init(); |
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83 readloop(); |
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84 |
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85 function getchannel($name) { |
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86 global $channels; |
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87 if (array_key_exists($name, $channels)) return $channels[$name]; |
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88 $ch = new Channel($name); |
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89 $channels[$name] = $ch; |
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90 return $ch; |
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91 } |
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92 function configure() { |
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93 global $networks, $config; |
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94 global $channels; |
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95 global $adminpass; |
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96 global $udpmsg, $udpmsg_config, $udpmsg_channels; |
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97 |
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98 print("Parsing configuration...\n"); |
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99 //require 'config.php'; |
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100 |
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101 if (isset($config['password'])) { |
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102 $adminpass = $config['password']; |
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103 require_once './ircrelay_admincmd.php'; |
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104 } |
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105 if (isset($config['udpmsg'])) { |
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106 $udpmsg_config = $config['udpmsg']; |
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107 $udpmsg = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); |
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108 socket_set_nonblock($udpmsg); |
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109 @socket_connect($udpmsg, $udpmsg_config['host'], $udpmsg_config['port']); |
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110 foreach ($udpmsg_config['channels'] as $chk => $chn) { |
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111 $ch = getchannel($chn); |
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112 $ch->udpmsg = $chk; |
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113 $udpmsg_channels[$chk] = $ch; |
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114 } |
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115 unset($udpmsg_config['channels']); |
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116 } |
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117 foreach ($config['networks'] as $key => $nc) { |
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118 $net = new Network(); |
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119 $net->key = $key; |
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120 $net->server = $nc['server']; |
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121 $net->nick = $nc['nick']; |
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122 $net->name = isset($nc['name']) ? $nc['name'] : $key; |
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123 if (isset($nc['port'])) $net->port = $nc['port']; |
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124 if (isset($nc['ident'])) $net->ident = $nc['ident']; |
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125 if (isset($nc['realname'])) $net->realname = $nc['realname']; |
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126 if (isset($nc['ipv6']) && $nc['ipv6']) $net->addressfamily = AF_INET6; |
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127 if (isset($nc['debug']) && $nc['debug']) $net->debug = TRUE; |
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128 foreach ($nc['channels'] as $chn => $cf) { |
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129 $ch = getchannel($cf['link']); |
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130 $nch = new NetworkChannel(); |
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131 $nch->name = $chn; |
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132 $nch->network = $net; |
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133 $nch->channel = $ch; |
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134 $nch->display = isset($cf['display']) ? $cf['display'] : $net->key; |
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135 $ch->links[] = $nch; |
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136 $net->channels[$chn] = $nch; |
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137 } |
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138 $networks[$key] = $net; |
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139 $net->active = TRUE; |
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140 print('NET '.$net->key.' create'."\n"); |
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141 } |
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142 } |
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143 |
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144 function prepare() { |
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145 global $channels, $status; |
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146 print("Starting IRC Relay...\n"); |
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147 $ch = new Channel('status'); |
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148 $channels[$ch->name] = $ch; |
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149 $status = $ch; |
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150 } |
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151 |
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152 function init() { |
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153 global $networks; |
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154 print("Initializing...\n"); |
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155 } |
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156 |
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157 function readloop() { |
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158 global $networks, $udpmsg, $listener, $udpmsg_connected, $udpmsg_config, $udpmsg_timer; |
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159 |
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160 $ltime = 0; |
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161 |
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162 print("Running\n"); |
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163 while (TRUE) { |
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164 $selread = array(); |
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165 $selwrite = array(); |
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166 $selerror = array(); |
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167 $selcount = 0; |
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168 |
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169 $ntime = time(); |
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170 $tdiff = $ntime - $ltime; |
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171 $ltime = $ntime; |
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172 |
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173 if ($udpmsg === NULL && $udpmsg_config['host'] !== NULL) { |
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174 $udpmsg_timer += $tdiff; |
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175 if ($udpmsg_timer >= 30) { |
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176 fprintf(STDERR, "UDPMSG: Reconnecting...\n"); |
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177 $udpmsg = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); |
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178 socket_set_nonblock($udpmsg); |
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179 @socket_connect($udpmsg, $udpmsg_config['host'], $udpmsg_config['port']); |
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180 $udpmsg_timer = 0; |
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181 } |
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182 } |
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183 |
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184 if ($udpmsg !== NULL) { |
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185 $selread[] = $udpmsg; |
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186 $selerror[] = $udpmsg; |
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187 if (!$udpmsg_connected) $selwrite[] = $udpmsg; |
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188 } |
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189 |
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190 foreach ($networks as $net) { |
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191 if ($net->connected) { |
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192 $selread[] = $net->socket; |
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193 $selerror[] = $net->socket; |
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194 $selcount++; |
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195 } else if ($net->connecting) { |
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196 $selwrite[] = $net->socket; |
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197 $selerror[] = $net->socket; |
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198 $selcount++; |
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199 } else if ($net->active) { |
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200 $net->timeout -= $tdiff; |
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201 if ($net->timeout <= 0) { |
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202 $net->connecting = TRUE; |
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203 print('NET '.$net->key.' connect '.$net->server.':'.$net->port."\n"); |
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204 $net->socket = socket_create($net->addressfamily, SOCK_STREAM, SOL_TCP); |
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205 socket_set_nonblock($net->socket); |
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206 socket_connect($net->socket, $net->server, $net->port); |
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207 $selwrite[] = $net->socket; |
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208 $selerror[] = $net->socket; |
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209 } |
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210 } |
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211 } |
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212 |
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213 if (!$selcount) { |
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214 sleep(1); |
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215 continue; |
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216 } |
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217 |
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218 socket_select(&$selread, &$selwrite, &$selerror, 10); |
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219 |
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220 if (in_array($udpmsg, $selerror)) { |
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221 fprintf(STDERR, "UDPMSG: Error: select error.\n"); |
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222 socket_close($udpmsg); |
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223 $udpmsg = NULL; |
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224 $udpmsg_connected = FALSE; |
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225 } else { |
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226 if (in_array($udpmsg, $selwrite) && !$udpmsg_connected) { |
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227 fprintf(STDERR, "UDPMSG: Connected.\n"); |
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228 $udpmsg_buffer = ''; |
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229 $udpmsg_connected = TRUE; |
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230 } |
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231 if (in_array($udpmsg, $selread)) { |
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232 if (!udpmsg_read($udpmsg)) { |
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233 fprintf(STDERR, "UDPMSG: Error: closing connection.\n"); |
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234 socket_close($udpmsg); |
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235 $udpmsg = NULL; |
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236 $udpmsg_connected = FALSE; |
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237 } |
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238 } |
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239 } |
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240 |
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241 foreach ($networks as $net) { |
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242 if (in_array($net->socket, $selerror)) { |
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243 print('NET '.$net->key.' socket error'."\n"); |
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244 network_reset($net); |
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245 } else if ($net->connected && in_array($net->socket, $selread)) { |
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246 if (!network_read($net)) { |
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247 print('NET '.$net->key.' read error'."\n"); |
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248 network_reset($net); |
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249 } |
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250 } else if ($net->connecting && in_array($net->socket, $selwrite)) { |
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251 $net->connected = TRUE; |
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252 $net->connecting = FALSE; |
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253 print('NET '.$net->key.' identify '.$net->nick."\n"); |
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254 network_send($net, 'USER '.$net->ident.' host server :'.$net->realname); |
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255 network_send($net, 'NICK '.$net->nick); |
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256 } |
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257 } |
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258 } |
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259 } |
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260 |
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261 function udpmsg_read() { |
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262 global $channels, $clients, $udpmsg, $udpmsg_buffer, $udpmsg_channels, $udpmsg_config; |
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263 $msg = socket_read($udpmsg, 1024); |
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264 if (!strlen($msg)) { |
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265 fprintf(STDERR, "UDPMSG: End of file\n"); |
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266 return FALSE; |
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267 } |
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268 $udpmsg_buffer .= $msg; |
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269 while (strlen($udpmsg_buffer) > 2) { |
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270 $len = ord($udpmsg_buffer[0]) * 256 + ord($udpmsg_buffer[1]); |
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271 if ($len <= 0 || $len > 1024) { |
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272 fprintf(STDERR, "UDPMSG: Error: protocol error\n"); |
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273 return FALSE; |
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274 } |
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275 if (strlen($udpmsg_buffer) < 2 + $len) break; |
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276 $msg = substr($udpmsg_buffer, 2, $len); |
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277 $udpmsg_buffer = substr($udpmsg_buffer, 2 + $len); |
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278 $parts = explode("\0", $msg); |
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279 $ret = array(); |
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280 for ($i = 0; $i < count($parts)-1; $i += 2) $ret[$parts[$i]] = $parts[$i+1]; |
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281 |
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282 if (!isset($ret['CHN']) || !isset($ret['CMD']) || !isset($ret['USR'])) continue; |
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283 if (!array_key_exists($ret['CHN'], $udpmsg_channels)) continue; |
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284 $ch = $udpmsg_channels[$ret['CHN']]; |
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285 if ($ret['CMD'] == 'MSG') { |
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286 if (!isset($ret['MSG'])) continue; |
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287 $from = preg_replace('/[^a-zA-Z0-9\-_]/', '', $ret['USR']); |
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288 if ($udpmsg_config['nicknetwork'] && isset($ret['NET'])) $from = preg_replace('/[^a-zA-Z0-9\-_]/', '', $ret['NET']).$udpmsg_config['nickseparator'].$from; |
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289 $from = $udpmsg_config['nickprefix'].$from; |
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290 $message = preg_replace('/[\x00\x10-\x13]/', '', $ret['MSG']); |
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291 $prefix = '['.$from.'] '; |
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292 if (ord($message[0]) == 1) { //CTCP |
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293 if (substr($message, 1, 6) != 'ACTION') continue; |
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294 $message = chr(1).'ACTION '.$prefix.substr($message, 8, -1).chr(1); |
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295 } else { |
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296 $message = $prefix.$message; |
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297 } |
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298 channel_send($ch, $message, $udpmsg); |
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299 } |
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300 } |
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301 return TRUE; |
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302 } |
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303 |
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304 function udpmsg_send($arr) { |
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305 global $udpmsg, $udpmsg_connected; |
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306 if (!$udpmsg || !$udpmsg_connected) return; |
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307 $tmp = array(); |
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308 foreach ($arr as $key => $value) { $tmp[] = $key; $tmp[] = $value; } |
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309 $tmp[] = ''; |
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310 $msg = implode("\0", $tmp); |
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311 $len = strlen($msg); |
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312 if ($len > 1024) { |
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313 fprintf(STDERR, "UDPMSG: Error: message too long!\n"); |
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314 return; |
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315 } |
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316 $lens = chr(floor($len / 256)).chr($len % 256); |
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317 socket_write($udpmsg, $lens.$msg); |
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318 } |
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319 |
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320 function network_reset($net) { |
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321 print('NET '.$net->key.' reset'."\n"); |
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322 socket_close($net->socket); |
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323 $net->connected = FALSE; |
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324 $net->connecting = FALSE; |
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325 $net->readbuffer = ''; |
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326 $net->timeout = 60; |
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327 } |
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328 |
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329 function network_read($net) { |
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330 $newdata = socket_read($net->socket, 1024); |
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331 if ($newdata === FALSE || !strlen($newdata)) return FALSE; |
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332 $net->readbuffer .= $newdata; |
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333 $offset = 0; |
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334 $len = strlen($net->readbuffer); |
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335 while ($offset < $len) { |
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336 $posa = strpos($net->readbuffer, "\n", $offset); |
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337 $posb = strpos($net->readbuffer, "\r", $offset); |
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338 if ($posa !== FALSE && $posb !== FALSE) { |
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339 $pos = min($posa, $posb); |
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340 } else if ($posa !== FALSE) { |
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341 $pos = $posa; |
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342 } else if ($posb !== FALSE) { |
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343 $pos = $posb; |
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344 } else { |
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345 break; |
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346 } |
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347 $line = substr($net->readbuffer, $offset, $pos - $offset); |
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348 if (strlen($line)) { |
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349 if (!network_process($net, $line)) return FALSE; |
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350 } |
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351 $offset = $pos + 1; |
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352 } |
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353 if ($offset == $len) { |
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354 $net->readbuffer = ''; |
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355 } else if ($offset != 0) { |
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356 $net->readbuffer = substr($net->readbuffer, $offset); |
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357 } |
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358 return TRUE; |
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359 } |
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360 |
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361 function network_process($net, $line) { |
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362 global $adminpass, $udpmsg, $udpmsg_connected; |
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363 if ($net->debug) print('NET '.$net->key.' recv '.$line."\n"); |
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364 $partsa = explode(' :', $line, 2); |
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365 $parts = explode(' ', $partsa[0]); |
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366 if ($parts[0][0] == ':') { |
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367 $sender = substr(array_shift(&$parts), 1); |
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368 } else { |
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369 $sender = NULL; |
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370 } |
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371 $command = array_shift(&$parts); |
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372 if (count($partsa) > 1) array_push(&$parts, $partsa[1]); |
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373 $partsa = explode('!', $sender); |
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374 $sendernick = $partsa[0]; |
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375 switch (strtoupper($command)) { |
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376 case '001': //Welcome |
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377 $net->realnick = $parts[0]; |
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378 print('NET '.$net->key.' welcome '.$net->realnick."\n"); |
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379 foreach ($net->channels as $ch) network_send($net, "JOIN :".$ch->name); |
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380 break; |
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381 case '433': //Nickname in use |
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382 print('NET '.$net->key.' nickname_in_use'."\n"); |
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383 network_send($net, "NICK ".$net->nick.rand(100,999)); |
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384 break; |
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385 case 'NICK': //Nickname change |
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386 if (strcasecmp($sendernick, $net->realnick)) { |
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387 $net->realnick = $parts[0]; |
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388 print('NET '.$net->key.' nickname '.$net->realnick."\n"); |
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389 } |
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390 break; |
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391 case 'PING': |
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392 network_send($net, 'PONG :'.$parts[0]); |
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393 break; |
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394 case 'PRIVMSG': |
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395 case 'NOTICE': |
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396 if ($parts[0][0] == '#') { |
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397 $to = $parts[0]; |
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398 } else { |
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399 $to = $sendernick; |
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400 if (!is_null($adminpass) && $parts[1][0] == '.' && substr($parts[1], 1, strlen($adminpass)) === $adminpass) { |
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401 $ret = admincmd(array_slice(explode(' ', $parts[1]), 1)); |
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402 network_send($net, 'PRIVMSG '.$to.' :'.$ret); |
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403 break; |
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404 } |
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405 } |
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406 if (!array_key_exists($to, $net->channels)) { |
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407 print('NET '.$net->key.' privmsg '.$sendernick.' @ '.$to.' - '.$parts[1]."\n"); |
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408 break; |
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409 } |
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410 $ch = $net->channels[$to]; |
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411 $prefix = '['.$sendernick.(is_null($ch->display) ? '' : ' @ '.$ch->display).'] '; |
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412 if (ord($parts[1][0]) == 1) { //CTCP |
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413 if (substr($parts[1], 1, 6) != 'ACTION') break; |
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414 $msg = chr(1).'ACTION '.$prefix.substr($parts[1], 8, -1).chr(1); |
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415 } else { |
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416 $msg = $prefix.$parts[1]; |
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417 } |
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418 channel_send($ch->channel, $msg, $ch, $command == 'NOTICE'); |
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419 if ($udpmsg && $udpmsg_connected && $ch->channel->udpmsg) { |
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420 $msg = array('CMD' => 'MSG', 'CHN' => $ch->channel->udpmsg, 'MSG' => $parts[1], 'USR' => $sendernick, 'DUMMY' => rand(10000, 99999)); |
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421 if (!is_null($ch->display)) $msg['NET'] = $ch->display; |
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422 udpmsg_send($msg); |
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423 } |
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424 break; |
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425 case '372': //Motd |
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426 case '376': //End of moth |
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427 case '002': //Your host |
|
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428 case '003': //This server |
|
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429 case '004': //Version |
|
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430 case '005': //Supported |
|
|
431 case '422': //Motd missing |
|
|
432 case '251': case '254': case '255': case '265': case '266': case '396': case '353': case '366': |
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433 case '252': case '375': |
|
|
434 case 'MODE': |
|
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435 case 'JOIN': |
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436 case 'PART': |
|
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437 case 'QUIT': |
|
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438 break; |
|
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439 default: |
|
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440 print('NET '.$net->key.' unknown '.$line."\n"); |
|
|
441 } |
|
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442 return TRUE; |
|
|
443 } |
|
|
444 |
|
|
445 function network_send($net, $line) { |
|
|
446 if ($net->debug) print('NET '.$net->key.' send '.$line."\n"); |
|
|
447 $line .= "\r\n"; |
|
|
448 socket_send($net->socket, $line, strlen($line), 0); |
|
|
449 } |
|
|
450 |
|
|
451 function channel_send($ch, $message, $source = NULL, $notice = FALSE) { |
|
|
452 foreach ($ch->links as $link) { |
|
|
453 if ($link->network->connected && $link !== $source) { |
|
|
454 network_send($link->network, ($notice ? 'NOTICE ' : 'PRIVMSG ').$link->name.' :'.$message); |
|
|
455 } |
|
|
456 } |
|
|
457 } |
