1 | <?php
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2 | /**
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3 | *
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4 | * @package phpBB3
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5 | * @version $Id$
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6 | * @copyright (c) 2005 phpBB Group
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7 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License
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8 | *
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9 | */
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10 |
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11 | /**
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12 | * @ignore
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13 | */
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14 | if (!defined('IN_PHPBB'))
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15 | {
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16 | exit;
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17 | }
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18 |
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19 | /**
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20 | * Transfer class, wrapper for ftp/sftp/ssh
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21 | * @package phpBB3
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22 | */
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23 | class transfer
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24 | {
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25 | var $connection;
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26 | var $host;
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27 | var $port;
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28 | var $username;
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29 | var $password;
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30 | var $timeout;
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31 | var $root_path;
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32 | var $tmp_path;
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33 | var $file_perms;
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34 | var $dir_perms;
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35 |
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36 | /**
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37 | * Constructor - init some basic values
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38 | */
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39 | function transfer()
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40 | {
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41 | global $phpbb_root_path;
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42 |
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43 | $this->file_perms = 0644;
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44 | $this->dir_perms = 0777;
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45 |
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46 | // We use the store directory as temporary path to circumvent open basedir restrictions
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47 | $this->tmp_path = $phpbb_root_path . 'store/';
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48 | }
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49 |
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50 | /**
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51 | * Write file to location
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52 | */
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53 | function write_file($destination_file = '', $contents = '')
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54 | {
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55 | global $phpbb_root_path;
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56 |
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57 | $destination_file = $this->root_path . str_replace($phpbb_root_path, '', $destination_file);
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58 |
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59 | // need to create a temp file and then move that temp file.
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60 | // ftp functions can only move files around and can't create.
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61 | // This means that the users will need to have access to write
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62 | // temporary files or have write access on a folder within phpBB
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63 | // like the cache folder. If the user can't do either, then
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64 | // he/she needs to use the fsock ftp method
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65 | $temp_name = tempnam($this->tmp_path, 'transfer_');
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66 | @unlink($temp_name);
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67 |
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68 | $fp = @fopen($temp_name, 'w');
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69 |
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70 | if (!$fp)
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71 | {
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72 | trigger_error('Unable to create temporary file ' . $temp_name, E_USER_ERROR);
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73 | }
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74 |
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75 | @fwrite($fp, $contents);
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76 | @fclose($fp);
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77 |
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78 | $result = $this->overwrite_file($temp_name, $destination_file);
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79 |
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80 | // remove temporary file now
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81 | @unlink($temp_name);
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82 |
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83 | return $result;
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84 | }
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85 |
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86 | /**
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87 | * Moving file into location. If the destination file already exists it gets overwritten
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88 | */
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89 | function overwrite_file($source_file, $destination_file)
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90 | {
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91 | /**
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92 | * @todo generally think about overwriting files in another way, by creating a temporary file and then renaming it
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93 | * @todo check for the destination file existance too
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94 | */
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95 | $this->_delete($destination_file);
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96 | $result = $this->_put($source_file, $destination_file);
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97 | $this->_chmod($destination_file, $this->file_perms);
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98 |
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99 | return $result;
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100 | }
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101 |
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102 | /**
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103 | * Create directory structure
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104 | */
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105 | function make_dir($dir)
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106 | {
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107 | global $phpbb_root_path;
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108 |
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109 | $dir = str_replace($phpbb_root_path, '', $dir);
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110 | $dir = explode('/', $dir);
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111 | $dirs = '';
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112 |
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113 | for ($i = 0, $total = sizeof($dir); $i < $total; $i++)
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114 | {
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115 | $result = true;
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116 |
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117 | if (strpos($dir[$i], '.') === 0)
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118 | {
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119 | continue;
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120 | }
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121 | $cur_dir = $dir[$i] . '/';
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122 |
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123 | if (!file_exists($phpbb_root_path . $dirs . $cur_dir))
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124 | {
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125 | // create the directory
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126 | $result = $this->_mkdir($dir[$i]);
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127 | $this->_chmod($dir[$i], $this->dir_perms);
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128 | }
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129 |
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130 | $this->_chdir($this->root_path . $dirs . $dir[$i]);
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131 | $dirs .= $cur_dir;
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132 | }
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133 |
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134 | $this->_chdir($this->root_path);
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135 |
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136 | /**
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137 | * @todo stack result into array to make sure every path creation has been taken care of
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138 | */
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139 | return $result;
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140 | }
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141 |
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142 | /**
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143 | * Copy file from source location to destination location
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144 | */
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145 | function copy_file($from_loc, $to_loc)
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146 | {
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147 | global $phpbb_root_path;
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148 |
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149 | $from_loc = ((strpos($from_loc, $phpbb_root_path) !== 0) ? $phpbb_root_path : '') . $from_loc;
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150 | $to_loc = $this->root_path . str_replace($phpbb_root_path, '', $to_loc);
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151 |
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152 | if (!file_exists($from_loc))
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153 | {
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154 | return false;
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155 | }
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156 |
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157 | $result = $this->overwrite_file($from_loc, $to_loc);
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158 |
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159 | return $result;
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160 | }
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161 |
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162 | /**
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163 | * Remove file
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164 | */
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165 | function delete_file($file)
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166 | {
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167 | global $phpbb_root_path;
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168 |
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169 | $file = $this->root_path . str_replace($phpbb_root_path, '', $file);
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170 |
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171 | return $this->_delete($file);
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172 | }
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173 |
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174 | /**
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175 | * Remove directory
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176 | * @todo remove child directories?
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177 | */
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178 | function remove_dir($dir)
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179 | {
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180 | global $phpbb_root_path;
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181 |
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182 | $dir = $this->root_path . str_replace($phpbb_root_path, '', $dir);
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183 |
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184 | return $this->_rmdir($dir);
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185 | }
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186 |
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187 | /**
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188 | * Rename a file or folder
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189 | */
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190 | function rename($old_handle, $new_handle)
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191 | {
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192 | global $phpbb_root_path;
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193 |
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194 | $old_handle = $this->root_path . str_replace($phpbb_root_path, '', $old_handle);
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195 |
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196 | return $this->_rename($old_handle, $new_handle);
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197 | }
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198 |
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199 | /**
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200 | * Check if a specified file exist...
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201 | */
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202 | function file_exists($directory, $filename)
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203 | {
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204 | global $phpbb_root_path;
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205 |
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206 | $directory = $this->root_path . str_replace($phpbb_root_path, '', $directory);
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207 |
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208 | $this->_chdir($directory);
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209 | $result = $this->_ls();
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210 |
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211 | if ($result !== false && is_array($result))
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212 | {
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213 | return (in_array($filename, $result)) ? true : false;
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214 | }
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215 |
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216 | return false;
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217 | }
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218 |
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219 | /**
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220 | * Open session
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221 | */
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222 | function open_session()
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223 | {
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224 | return $this->_init();
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225 | }
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226 |
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227 | /**
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228 | * Close current session
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229 | */
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230 | function close_session()
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231 | {
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232 | return $this->_close();
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233 | }
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234 |
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235 | /**
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236 | * Determine methods able to be used
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237 | */
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238 | function methods()
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239 | {
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240 | $methods = array();
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241 | $disabled_functions = explode(',', @ini_get('disable_functions'));
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242 |
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243 | if (@extension_loaded('ftp'))
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244 | {
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245 | $methods[] = 'ftp';
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246 | }
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247 |
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248 | if (!in_array('fsockopen', $disabled_functions))
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249 | {
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250 | $methods[] = 'ftp_fsock';
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251 | }
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252 |
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253 | return $methods;
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254 | }
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255 | }
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256 |
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257 | /**
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258 | * FTP transfer class
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259 | * @package phpBB3
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260 | */
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261 | class ftp extends transfer
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262 | {
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263 | /**
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264 | * Standard parameters for FTP session
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265 | */
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266 | function ftp($host, $username, $password, $root_path, $port = 21, $timeout = 10)
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267 | {
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268 | $this->host = $host;
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269 | $this->port = $port;
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270 | $this->username = $username;
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271 | $this->password = $password;
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272 | $this->timeout = $timeout;
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273 |
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274 | // Make sure $this->root_path is layed out the same way as the $user->page['root_script_path'] value (/ at the end)
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275 | $this->root_path = str_replace('\\', '/', $this->root_path);
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276 |
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277 | if (!empty($root_path))
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278 | {
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279 | $this->root_path = (($root_path[0] != '/' ) ? '/' : '') . $root_path . ((substr($root_path, -1, 1) == '/') ? '' : '/');
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280 | }
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281 |
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282 | // Init some needed values
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283 | transfer::transfer();
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284 |
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285 | return;
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286 | }
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287 |
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288 | /**
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289 | * Requests data
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290 | */
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291 | function data()
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292 | {
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293 | global $user;
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294 |
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295 | return array(
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296 | 'host' => 'localhost',
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297 | 'username' => 'anonymous',
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298 | 'password' => '',
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299 | 'root_path' => $user->page['root_script_path'],
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300 | 'port' => 21,
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301 | 'timeout' => 10
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302 | );
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303 | }
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304 |
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305 | /**
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306 | * Init FTP Session
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307 | * @access private
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308 | */
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309 | function _init()
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310 | {
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311 | // connect to the server
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312 | $this->connection = @ftp_connect($this->host, $this->port, $this->timeout);
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313 |
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314 | if (!$this->connection)
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315 | {
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316 | return 'ERR_CONNECTING_SERVER';
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317 | }
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318 |
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319 | // login to the server
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320 | if (!@ftp_login($this->connection, $this->username, $this->password))
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321 | {
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322 | return 'ERR_UNABLE_TO_LOGIN';
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323 | }
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324 |
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325 | // attempt to turn pasv mode on
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326 | @ftp_pasv($this->connection, true);
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327 |
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328 | // change to the root directory
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329 | if (!$this->_chdir($this->root_path))
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330 | {
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331 | return 'ERR_CHANGING_DIRECTORY';
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332 | }
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333 |
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334 | return true;
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335 | }
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336 |
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337 | /**
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338 | * Create Directory (MKDIR)
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339 | * @access private
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340 | */
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341 | function _mkdir($dir)
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342 | {
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343 | return @ftp_mkdir($this->connection, $dir);
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344 | }
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345 |
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346 | /**
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347 | * Remove directory (RMDIR)
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348 | * @access private
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349 | */
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350 | function _rmdir($dir)
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351 | {
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352 | return @ftp_rmdir($this->connection, $dir);
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353 | }
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354 |
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355 | /**
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356 | * Rename file
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357 | * @access private
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358 | */
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359 | function _rename($old_handle, $new_handle)
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360 | {
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361 | return @ftp_rename($this->connection, $old_handle, $new_handle);
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362 | }
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363 |
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364 | /**
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365 | * Change current working directory (CHDIR)
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366 | * @access private
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367 | */
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368 | function _chdir($dir = '')
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369 | {
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370 | if ($dir && $dir !== '/')
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371 | {
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372 | if (substr($dir, -1, 1) == '/')
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373 | {
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374 | $dir = substr($dir, 0, -1);
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375 | }
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376 | }
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377 |
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378 | return @ftp_chdir($this->connection, $dir);
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379 | }
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380 |
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381 | /**
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382 | * change file permissions (CHMOD)
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383 | * @access private
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384 | */
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385 | function _chmod($file, $perms)
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386 | {
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387 | if (function_exists('ftp_chmod'))
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388 | {
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389 | $err = @ftp_chmod($this->connection, $perms, $file);
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390 | }
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391 | else
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392 | {
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393 | // Unfortunatly CHMOD is not expecting an octal value...
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394 | // We need to transform the integer (which was an octal) to an octal representation (to get the int) and then pass as is. ;)
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395 | $chmod_cmd = 'CHMOD ' . base_convert($perms, 10, 8) . ' ' . $file;
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396 | $err = $this->_site($chmod_cmd);
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397 | }
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398 |
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399 | return $err;
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400 | }
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401 |
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402 | /**
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403 | * Upload file to location (PUT)
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404 | * @access private
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405 | */
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406 | function _put($from_file, $to_file)
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407 | {
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408 | // get the file extension
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409 | $file_extension = strtolower(substr(strrchr($to_file, '.'), 1));
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410 |
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411 | // We only use the BINARY file mode to cicumvent rewrite actions from ftp server (mostly linefeeds being replaced)
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412 | $mode = FTP_BINARY;
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413 |
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414 | $to_dir = dirname($to_file);
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415 | $to_file = basename($to_file);
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416 | $this->_chdir($to_dir);
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417 |
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418 | $result = @ftp_put($this->connection, $to_file, $from_file, $mode);
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419 | $this->_chdir($this->root_path);
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420 |
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421 | return $result;
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422 | }
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423 |
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424 | /**
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425 | * Delete file (DELETE)
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426 | * @access private
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427 | */
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428 | function _delete($file)
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429 | {
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430 | return @ftp_delete($this->connection, $file);
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431 | }
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432 |
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433 | /**
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434 | * Close ftp session (CLOSE)
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435 | * @access private
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436 | */
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437 | function _close()
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438 | {
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439 | if (!$this->connection)
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440 | {
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441 | return false;
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442 | }
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443 |
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444 | return @ftp_quit($this->connection);
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445 | }
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446 |
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447 | /**
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448 | * Return current working directory (CWD)
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449 | * At the moment not used by parent class
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450 | * @access private
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451 | */
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452 | function _cwd()
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453 | {
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454 | return @ftp_pwd($this->connection);
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455 | }
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456 |
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457 | /**
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458 | * Return list of files in a given directory (LS)
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459 | * @access private
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460 | */
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461 | function _ls($dir = './')
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462 | {
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463 | $list = @ftp_nlist($this->connection, $dir);
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464 |
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465 | // See bug #46295 - Some FTP daemons don't like './'
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466 | if ($dir === './')
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467 | {
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468 | // Let's try some alternatives
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469 | $list = (empty($list)) ? @ftp_nlist($this->connection, '.') : $list;
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470 | $list = (empty($list)) ? @ftp_nlist($this->connection, '') : $list;
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471 | }
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472 |
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473 | // Return on error
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474 | if ($list === false)
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475 | {
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476 | return false;
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477 | }
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478 |
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479 | // Remove path if prepended
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480 | foreach ($list as $key => $item)
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481 | {
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482 | // Use same separator for item and dir
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483 | $item = str_replace('\\', '/', $item);
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484 | $dir = str_replace('\\', '/', $dir);
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485 |
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486 | if (!empty($dir) && strpos($item, $dir) === 0)
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487 | {
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488 | $item = substr($item, strlen($dir));
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489 | }
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490 |
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491 | $list[$key] = $item;
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492 | }
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493 |
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494 | return $list;
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495 | }
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496 |
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497 | /**
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498 | * FTP SITE command (ftp-only function)
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499 | * @access private
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500 | */
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501 | function _site($command)
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502 | {
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503 | return @ftp_site($this->connection, $command);
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504 | }
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505 | }
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506 |
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507 | /**
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508 | * FTP fsock transfer class
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509 | *
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510 | * @author wGEric
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511 | * @package phpBB3
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512 | */
|
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513 | class ftp_fsock extends transfer
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514 | {
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515 | var $data_connection;
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516 |
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517 | /**
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518 | * Standard parameters for FTP session
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519 | */
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520 | function ftp_fsock($host, $username, $password, $root_path, $port = 21, $timeout = 10)
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521 | {
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522 | $this->host = $host;
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523 | $this->port = $port;
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524 | $this->username = $username;
|
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525 | $this->password = $password;
|
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526 | $this->timeout = $timeout;
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527 |
|
---|
528 | // Make sure $this->root_path is layed out the same way as the $user->page['root_script_path'] value (/ at the end)
|
---|
529 | $this->root_path = str_replace('\\', '/', $this->root_path);
|
---|
530 |
|
---|
531 | if (!empty($root_path))
|
---|
532 | {
|
---|
533 | $this->root_path = (($root_path[0] != '/' ) ? '/' : '') . $root_path . ((substr($root_path, -1, 1) == '/') ? '' : '/');
|
---|
534 | }
|
---|
535 |
|
---|
536 | // Init some needed values
|
---|
537 | transfer::transfer();
|
---|
538 |
|
---|
539 | return;
|
---|
540 | }
|
---|
541 |
|
---|
542 | /**
|
---|
543 | * Requests data
|
---|
544 | */
|
---|
545 | function data()
|
---|
546 | {
|
---|
547 | global $user;
|
---|
548 |
|
---|
549 | return array(
|
---|
550 | 'host' => 'localhost',
|
---|
551 | 'username' => 'anonymous',
|
---|
552 | 'password' => '',
|
---|
553 | 'root_path' => $user->page['root_script_path'],
|
---|
554 | 'port' => 21,
|
---|
555 | 'timeout' => 10
|
---|
556 | );
|
---|
557 | }
|
---|
558 |
|
---|
559 | /**
|
---|
560 | * Init FTP Session
|
---|
561 | * @access private
|
---|
562 | */
|
---|
563 | function _init()
|
---|
564 | {
|
---|
565 | $errno = 0;
|
---|
566 | $errstr = '';
|
---|
567 |
|
---|
568 | // connect to the server
|
---|
569 | $this->connection = @fsockopen($this->host, $this->port, $errno, $errstr, $this->timeout);
|
---|
570 |
|
---|
571 | if (!$this->connection || !$this->_check_command())
|
---|
572 | {
|
---|
573 | return 'ERR_CONNECTING_SERVER';
|
---|
574 | }
|
---|
575 |
|
---|
576 | @stream_set_timeout($this->connection, $this->timeout);
|
---|
577 |
|
---|
578 | // login
|
---|
579 | if (!$this->_send_command('USER', $this->username))
|
---|
580 | {
|
---|
581 | return 'ERR_UNABLE_TO_LOGIN';
|
---|
582 | }
|
---|
583 |
|
---|
584 | if (!$this->_send_command('PASS', $this->password))
|
---|
585 | {
|
---|
586 | return 'ERR_UNABLE_TO_LOGIN';
|
---|
587 | }
|
---|
588 |
|
---|
589 | // change to the root directory
|
---|
590 | if (!$this->_chdir($this->root_path))
|
---|
591 | {
|
---|
592 | return 'ERR_CHANGING_DIRECTORY';
|
---|
593 | }
|
---|
594 |
|
---|
595 | return true;
|
---|
596 | }
|
---|
597 |
|
---|
598 | /**
|
---|
599 | * Create Directory (MKDIR)
|
---|
600 | * @access private
|
---|
601 | */
|
---|
602 | function _mkdir($dir)
|
---|
603 | {
|
---|
604 | return $this->_send_command('MKD', $dir);
|
---|
605 | }
|
---|
606 |
|
---|
607 | /**
|
---|
608 | * Remove directory (RMDIR)
|
---|
609 | * @access private
|
---|
610 | */
|
---|
611 | function _rmdir($dir)
|
---|
612 | {
|
---|
613 | return $this->_send_command('RMD', $dir);
|
---|
614 | }
|
---|
615 |
|
---|
616 | /**
|
---|
617 | * Rename File
|
---|
618 | * @access private
|
---|
619 | */
|
---|
620 | function _rename($old_handle, $new_handle)
|
---|
621 | {
|
---|
622 | $this->_send_command('RNFR', $old_handle);
|
---|
623 | return $this->_send_command('RNTO', $new_handle);
|
---|
624 | }
|
---|
625 |
|
---|
626 | /**
|
---|
627 | * Change current working directory (CHDIR)
|
---|
628 | * @access private
|
---|
629 | */
|
---|
630 | function _chdir($dir = '')
|
---|
631 | {
|
---|
632 | if ($dir && $dir !== '/')
|
---|
633 | {
|
---|
634 | if (substr($dir, -1, 1) == '/')
|
---|
635 | {
|
---|
636 | $dir = substr($dir, 0, -1);
|
---|
637 | }
|
---|
638 | }
|
---|
639 |
|
---|
640 | return $this->_send_command('CWD', $dir);
|
---|
641 | }
|
---|
642 |
|
---|
643 | /**
|
---|
644 | * change file permissions (CHMOD)
|
---|
645 | * @access private
|
---|
646 | */
|
---|
647 | function _chmod($file, $perms)
|
---|
648 | {
|
---|
649 | // Unfortunatly CHMOD is not expecting an octal value...
|
---|
650 | // We need to transform the integer (which was an octal) to an octal representation (to get the int) and then pass as is. ;)
|
---|
651 | return $this->_send_command('SITE CHMOD', base_convert($perms, 10, 8) . ' ' . $file);
|
---|
652 | }
|
---|
653 |
|
---|
654 | /**
|
---|
655 | * Upload file to location (PUT)
|
---|
656 | * @access private
|
---|
657 | */
|
---|
658 | function _put($from_file, $to_file)
|
---|
659 | {
|
---|
660 | // We only use the BINARY file mode to cicumvent rewrite actions from ftp server (mostly linefeeds being replaced)
|
---|
661 | // 'I' == BINARY
|
---|
662 | // 'A' == ASCII
|
---|
663 | if (!$this->_send_command('TYPE', 'I'))
|
---|
664 | {
|
---|
665 | return false;
|
---|
666 | }
|
---|
667 |
|
---|
668 | // open the connection to send file over
|
---|
669 | if (!$this->_open_data_connection())
|
---|
670 | {
|
---|
671 | return false;
|
---|
672 | }
|
---|
673 |
|
---|
674 | $this->_send_command('STOR', $to_file, false);
|
---|
675 |
|
---|
676 | // send the file
|
---|
677 | $fp = @fopen($from_file, 'rb');
|
---|
678 | while (!@feof($fp))
|
---|
679 | {
|
---|
680 | @fwrite($this->data_connection, @fread($fp, 4096));
|
---|
681 | }
|
---|
682 | @fclose($fp);
|
---|
683 |
|
---|
684 | // close connection
|
---|
685 | $this->_close_data_connection();
|
---|
686 |
|
---|
687 | return $this->_check_command();
|
---|
688 | }
|
---|
689 |
|
---|
690 | /**
|
---|
691 | * Delete file (DELETE)
|
---|
692 | * @access private
|
---|
693 | */
|
---|
694 | function _delete($file)
|
---|
695 | {
|
---|
696 | return $this->_send_command('DELE', $file);
|
---|
697 | }
|
---|
698 |
|
---|
699 | /**
|
---|
700 | * Close ftp session (CLOSE)
|
---|
701 | * @access private
|
---|
702 | */
|
---|
703 | function _close()
|
---|
704 | {
|
---|
705 | if (!$this->connection)
|
---|
706 | {
|
---|
707 | return false;
|
---|
708 | }
|
---|
709 |
|
---|
710 | return $this->_send_command('QUIT');
|
---|
711 | }
|
---|
712 |
|
---|
713 | /**
|
---|
714 | * Return current working directory (CWD)
|
---|
715 | * At the moment not used by parent class
|
---|
716 | * @access private
|
---|
717 | */
|
---|
718 | function _cwd()
|
---|
719 | {
|
---|
720 | $this->_send_command('PWD', '', false);
|
---|
721 | return preg_replace('#^[0-9]{3} "(.+)" .+\r\n#', '\\1', $this->_check_command(true));
|
---|
722 | }
|
---|
723 |
|
---|
724 | /**
|
---|
725 | * Return list of files in a given directory (LS)
|
---|
726 | * @access private
|
---|
727 | */
|
---|
728 | function _ls($dir = './')
|
---|
729 | {
|
---|
730 | if (!$this->_open_data_connection())
|
---|
731 | {
|
---|
732 | return false;
|
---|
733 | }
|
---|
734 |
|
---|
735 | $this->_send_command('NLST', $dir);
|
---|
736 |
|
---|
737 | $list = array();
|
---|
738 | while (!@feof($this->data_connection))
|
---|
739 | {
|
---|
740 | $filename = preg_replace('#[\r\n]#', '', @fgets($this->data_connection, 512));
|
---|
741 |
|
---|
742 | if ($filename !== '')
|
---|
743 | {
|
---|
744 | $list[] = $filename;
|
---|
745 | }
|
---|
746 | }
|
---|
747 | $this->_close_data_connection();
|
---|
748 |
|
---|
749 | // Clear buffer
|
---|
750 | $this->_check_command();
|
---|
751 |
|
---|
752 | // See bug #46295 - Some FTP daemons don't like './'
|
---|
753 | if ($dir === './' && empty($list))
|
---|
754 | {
|
---|
755 | // Let's try some alternatives
|
---|
756 | $list = $this->_ls('.');
|
---|
757 |
|
---|
758 | if (empty($list))
|
---|
759 | {
|
---|
760 | $list = $this->_ls('');
|
---|
761 | }
|
---|
762 |
|
---|
763 | return $list;
|
---|
764 | }
|
---|
765 |
|
---|
766 | // Remove path if prepended
|
---|
767 | foreach ($list as $key => $item)
|
---|
768 | {
|
---|
769 | // Use same separator for item and dir
|
---|
770 | $item = str_replace('\\', '/', $item);
|
---|
771 | $dir = str_replace('\\', '/', $dir);
|
---|
772 |
|
---|
773 | if (!empty($dir) && strpos($item, $dir) === 0)
|
---|
774 | {
|
---|
775 | $item = substr($item, strlen($dir));
|
---|
776 | }
|
---|
777 |
|
---|
778 | $list[$key] = $item;
|
---|
779 | }
|
---|
780 |
|
---|
781 | return $list;
|
---|
782 | }
|
---|
783 |
|
---|
784 | /**
|
---|
785 | * Send a command to server (FTP fsock only function)
|
---|
786 | * @access private
|
---|
787 | */
|
---|
788 | function _send_command($command, $args = '', $check = true)
|
---|
789 | {
|
---|
790 | if (!empty($args))
|
---|
791 | {
|
---|
792 | $command = "$command $args";
|
---|
793 | }
|
---|
794 |
|
---|
795 | fwrite($this->connection, $command . "\r\n");
|
---|
796 |
|
---|
797 | if ($check === true && !$this->_check_command())
|
---|
798 | {
|
---|
799 | return false;
|
---|
800 | }
|
---|
801 |
|
---|
802 | return true;
|
---|
803 | }
|
---|
804 |
|
---|
805 | /**
|
---|
806 | * Opens a connection to send data (FTP fosck only function)
|
---|
807 | * @access private
|
---|
808 | */
|
---|
809 | function _open_data_connection()
|
---|
810 | {
|
---|
811 | $this->_send_command('PASV', '', false);
|
---|
812 |
|
---|
813 | if (!$ip_port = $this->_check_command(true))
|
---|
814 | {
|
---|
815 | return false;
|
---|
816 | }
|
---|
817 |
|
---|
818 | // open the connection to start sending the file
|
---|
819 | if (!preg_match('#[0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]+,[0-9]+#', $ip_port, $temp))
|
---|
820 | {
|
---|
821 | // bad ip and port
|
---|
822 | return false;
|
---|
823 | }
|
---|
824 |
|
---|
825 | $temp = explode(',', $temp[0]);
|
---|
826 | $server_ip = $temp[0] . '.' . $temp[1] . '.' . $temp[2] . '.' . $temp[3];
|
---|
827 | $server_port = $temp[4] * 256 + $temp[5];
|
---|
828 | $errno = 0;
|
---|
829 | $errstr = '';
|
---|
830 |
|
---|
831 | if (!$this->data_connection = @fsockopen($server_ip, $server_port, $errno, $errstr, $this->timeout))
|
---|
832 | {
|
---|
833 | return false;
|
---|
834 | }
|
---|
835 | @stream_set_timeout($this->data_connection, $this->timeout);
|
---|
836 |
|
---|
837 | return true;
|
---|
838 | }
|
---|
839 |
|
---|
840 | /**
|
---|
841 | * Closes a connection used to send data
|
---|
842 | * @access private
|
---|
843 | */
|
---|
844 | function _close_data_connection()
|
---|
845 | {
|
---|
846 | return @fclose($this->data_connection);
|
---|
847 | }
|
---|
848 |
|
---|
849 | /**
|
---|
850 | * Check to make sure command was successful (FTP fsock only function)
|
---|
851 | * @access private
|
---|
852 | */
|
---|
853 | function _check_command($return = false)
|
---|
854 | {
|
---|
855 | $response = '';
|
---|
856 |
|
---|
857 | do
|
---|
858 | {
|
---|
859 | $result = @fgets($this->connection, 512);
|
---|
860 | $response .= $result;
|
---|
861 | }
|
---|
862 | while (substr($result, 3, 1) !== ' ');
|
---|
863 |
|
---|
864 | if (!preg_match('#^[123]#', $response))
|
---|
865 | {
|
---|
866 | return false;
|
---|
867 | }
|
---|
868 |
|
---|
869 | return ($return) ? $response : true;
|
---|
870 | }
|
---|
871 | }
|
---|
872 |
|
---|
873 | ?>
|
---|