1 | <?php |
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2 | /**************************************************************************\ |
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3 | * eGroupWare API - Network * |
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4 | * This file written by Mark Peters <skeeter@phpgroupware.org> * |
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5 | * Handles opening network socket connections, taking proxy into account * |
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6 | * Copyright (C) 2000, 2001 Mark Peters * |
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7 | * -------------------------------------------------------------------------* |
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8 | * This library is part of the eGroupWare API * |
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9 | * http://www.egroupware.org/api * |
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10 | * ------------------------------------------------------------------------ * |
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11 | * This library is free software; you can redistribute it and/or modify it * |
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12 | * under the terms of the GNU Lesser General Public License as published by * |
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13 | * the Free Software Foundation; either version 2.1 of the License, * |
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14 | * or any later version. * |
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15 | * This library is distributed in the hope that it will be useful, but * |
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16 | * WITHOUT ANY WARRANTY; without even the implied warranty of * |
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17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * |
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18 | * See the GNU Lesser General Public License for more details. * |
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19 | * You should have received a copy of the GNU Lesser General Public License * |
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20 | * along with this library; if not, write to the Free Software Foundation, * |
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21 | * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * |
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22 | \**************************************************************************/ |
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23 | |
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24 | |
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25 | class network |
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26 | { |
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27 | var $socket; |
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28 | var $addcrlf = TRUE; |
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29 | var $error; |
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30 | var $errorset = 0; |
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31 | |
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32 | function network($addcrlf=true) |
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33 | { |
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34 | $this->errorset = 0; |
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35 | $this->set_addcrlf($addcrlf); |
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36 | } |
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37 | |
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38 | function set_addcrlf($value) |
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39 | { |
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40 | $this->addcrlf = $value; |
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41 | } |
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42 | |
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43 | function add_crlf($str) |
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44 | { |
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45 | if($this->addcrlf) |
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46 | { |
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47 | $str .= "\r\n"; |
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48 | } |
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49 | return $str; |
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50 | } |
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51 | |
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52 | function set_error($code,$msg,$desc) |
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53 | { |
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54 | $this->error = array('code','msg','desc'); |
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55 | $this->error['code'] = $code; |
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56 | $this->error['msg'] = $msg; |
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57 | $this->error['desc'] = $desc; |
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58 | // $this->close_port(); |
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59 | $this->errorset = 1; |
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60 | return 0; |
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61 | } |
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62 | |
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63 | function open_port($server,$port,$timeout=15) |
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64 | { |
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65 | switch($port) |
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66 | { |
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67 | case 80: |
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68 | case 443: |
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69 | if((isset($GLOBALS['phpgw_info']['server']['httpproxy_server']) && $GLOBALS['phpgw_info']['server']['httpproxy_server']) && |
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70 | (isset($GLOBALS['phpgw_info']['server']['httpproxy_port']) && $GLOBALS['phpgw_info']['server']['httpproxy_port'])) |
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71 | { |
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72 | $server = $GLOBALS['phpgw_info']['server']['httpproxy_server']; |
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73 | $port = (int)$GLOBALS['phpgw_info']['server']['httpproxy_port']; |
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74 | } |
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75 | break; |
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76 | } |
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77 | if(version_compare(phpversion(),'4.3.0') >= 0) |
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78 | { |
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79 | $this->socket = @fsockopen($server,$port,$errcode,$errmsg,$timeout); |
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80 | if($this->socket) |
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81 | { |
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82 | stream_set_timeout($this->socket,$timeout,0); |
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83 | } |
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84 | } |
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85 | else |
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86 | { |
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87 | $this->socket = @fsockopen($server,$port,$errcode,$errmsg); |
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88 | } |
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89 | if(!$this->socket) |
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90 | { |
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91 | return $this->set_error('Error',$errcode.':'.$errmsg,'Connection to '.$server.':'.$port.' failed - could not open socket.'); |
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92 | } |
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93 | else |
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94 | { |
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95 | return 1; |
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96 | } |
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97 | } |
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98 | |
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99 | function close_port() |
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100 | { |
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101 | return fclose($this->socket); |
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102 | } |
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103 | |
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104 | function read_port() |
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105 | { |
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106 | return fgets($this->socket, 1024); |
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107 | } |
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108 | |
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109 | function bs_read_port($bytes) |
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110 | { |
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111 | return fread($this->socket, $bytes); |
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112 | } |
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113 | |
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114 | function write_port($str) |
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115 | { |
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116 | $ok = fputs($this->socket,$this->add_crlf($str)); |
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117 | if(!$ok) |
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118 | { |
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119 | return $this->set_error('Error','Connection Lost','lost connection to server'); |
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120 | } |
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121 | else |
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122 | { |
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123 | return 1; |
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124 | } |
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125 | } |
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126 | |
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127 | function bs_write_port($str,$bytes=0) |
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128 | { |
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129 | if($bytes) |
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130 | { |
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131 | $ok = fwrite($this->socket,$this->add_crlf($str),$bytes); |
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132 | } |
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133 | else |
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134 | { |
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135 | $ok = fwrite($this->socket,$this->add_crlf($str)); |
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136 | } |
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137 | if(!$ok) |
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138 | { |
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139 | return $this->set_error('Error','Connection Lost','lost connection to server'); |
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140 | } |
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141 | else |
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142 | { |
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143 | return 1; |
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144 | } |
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145 | } |
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146 | |
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147 | function msg2socket($str,$expected_response,&$response) |
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148 | { |
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149 | if(!$this->socket) |
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150 | { |
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151 | return $this->set_error('521','socket does not exist', |
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152 | 'The required socket does not exist. The settings for your mail server may be wrong.'); |
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153 | } |
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154 | if(!$this->write_port($str)) |
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155 | { |
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156 | if(substr($expected_response,1,1) == '+') |
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157 | { |
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158 | return $this->set_error('420','lost connection','Lost connection to pop server.'); |
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159 | } |
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160 | else |
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161 | { |
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162 | return 0; |
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163 | } |
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164 | } |
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165 | $response = $this->read_port(); |
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166 | if(!preg_match(strtoupper("/$expected_response/"),strtoupper($response))) |
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167 | { |
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168 | if(substr($expected_response,1,1) == '+') |
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169 | { |
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170 | return $this->set_error('550','',''); |
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171 | } |
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172 | $pos = strpos(' ',$response); |
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173 | return $this->set_error(substr($response,0,$pos), |
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174 | 'invalid response('.$expected_response.')', |
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175 | substr($response,($pos + 1),(strlen($response)-$pos))); |
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176 | } |
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177 | else |
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178 | { |
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179 | return 1; |
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180 | } |
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181 | } |
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182 | |
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183 | // return contents of a web url as an array (or string) or false if timeout |
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184 | function gethttpsocketfile($file,$user='',$passwd='',$string=False) |
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185 | { |
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186 | $server = str_replace('http://','',$file); |
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187 | $file = strstr($server,'/'); |
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188 | $server = str_replace($file,'',$server); |
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189 | |
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190 | //allows for access to http-auth pages - added by Dave Hall <dave.hall@mbox.com.au> |
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191 | if(!((empty($user))&&(empty($passwd)))) |
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192 | { |
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193 | $auth = 'Authorization: Basic '.base64_encode("$user:$passwd")."\n"; |
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194 | } |
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195 | else |
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196 | { |
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197 | $auth = ''; |
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198 | } |
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199 | |
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200 | if($GLOBALS['phpgw_info']['server']['httpproxy_server']) |
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201 | { |
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202 | $proxyAuth = ''; |
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203 | if(!empty($GLOBALS['phpgw_info']['server']['httpproxy_server_username'])) |
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204 | { |
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205 | $proxyUsername = $GLOBALS['phpgw_info']['server']['httpproxy_server_username']; |
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206 | $proxyPassword = $GLOBALS['phpgw_info']['server']['httpproxy_server_password']; |
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207 | $proxyAuth = 'Proxy-Authorization: Basic '.base64_encode("$proxyUsername:$proxyPassword")."\n"; |
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208 | } |
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209 | if($this->open_port($server,80, 15)) |
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210 | { |
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211 | if(!$this->write_port('GET http://' . $server . $file . ' HTTP/1.0'."\n".$proxyAuth.$auth."\r\n\r\n")) |
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212 | { |
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213 | return False; |
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214 | } |
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215 | $i = 0; |
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216 | while($line = $this->read_port()) |
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217 | { |
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218 | if(feof($this->socket)) |
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219 | { |
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220 | break; |
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221 | } |
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222 | $lines[] = $line; |
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223 | ++$i; |
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224 | } |
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225 | $this->close_port(); |
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226 | if($string) |
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227 | { |
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228 | return implode("\n",$lines); |
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229 | } |
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230 | return $lines; |
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231 | } |
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232 | else |
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233 | { |
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234 | return False; |
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235 | } |
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236 | } |
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237 | else |
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238 | { |
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239 | if($this->open_port($server, 80, 15)) |
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240 | { |
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241 | $lines = array(); |
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242 | if(!$this->write_port('GET '.$file.' HTTP/1.0'."\n".'Host: '.$server."\n".$auth."\r\n\r\n")) |
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243 | { |
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244 | return 0; |
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245 | } |
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246 | while($line = $this->read_port()) |
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247 | { |
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248 | $lines[] = $line; |
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249 | } |
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250 | $this->close_port(); |
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251 | if($string) |
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252 | { |
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253 | return implode("\n",$lines); |
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254 | } |
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255 | return $lines; |
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256 | } |
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257 | else |
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258 | { |
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259 | return 0; |
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260 | } |
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261 | } |
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262 | } |
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263 | } |
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264 | ?> |
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