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   1  <?php
   2  /**
   3   * WordPress FTP Filesystem.
   4   *
   5   * @package WordPress
   6   * @subpackage Filesystem
   7   */
   8  
   9  /**
  10   * WordPress Filesystem Class for implementing FTP.
  11   *
  12   * @since 2.5
  13   * @package WordPress
  14   * @subpackage Filesystem
  15   * @uses WP_Filesystem_Base Extends class
  16   */
  17  class WP_Filesystem_FTPext extends WP_Filesystem_Base {
  18      var $link;
  19      var $errors = null;
  20      var $options = array();
  21  
  22  	function __construct($opt='') {
  23          $this->method = 'ftpext';
  24          $this->errors = new WP_Error();
  25  
  26          //Check if possible to use ftp functions.
  27          if ( ! extension_loaded('ftp') ) {
  28              $this->errors->add('no_ftp_ext', __('The ftp PHP extension is not available'));
  29              return false;
  30          }
  31  
  32          // Set defaults:
  33          //This Class uses the timeout on a per-connection basis, Others use it on a per-action basis.
  34  
  35          if ( ! defined('FS_TIMEOUT') )
  36              define('FS_TIMEOUT', 240);
  37  
  38          if ( empty($opt['port']) )
  39              $this->options['port'] = 21;
  40          else
  41              $this->options['port'] = $opt['port'];
  42  
  43          if ( empty($opt['hostname']) )
  44              $this->errors->add('empty_hostname', __('FTP hostname is required'));
  45          else
  46              $this->options['hostname'] = $opt['hostname'];
  47  
  48          if ( ! empty($opt['base']) )
  49              $this->wp_base = $opt['base'];
  50  
  51          // Check if the options provided are OK.
  52          if ( empty($opt['username']) )
  53              $this->errors->add('empty_username', __('FTP username is required'));
  54          else
  55              $this->options['username'] = $opt['username'];
  56  
  57          if ( empty($opt['password']) )
  58              $this->errors->add('empty_password', __('FTP password is required'));
  59          else
  60              $this->options['password'] = $opt['password'];
  61  
  62          $this->options['ssl'] = false;
  63          if ( isset($opt['connection_type']) && 'ftps' == $opt['connection_type'] )
  64              $this->options['ssl'] = true;
  65      }
  66  
  67  	function connect() {
  68          if ( isset($this->options['ssl']) && $this->options['ssl'] && function_exists('ftp_ssl_connect') )
  69              $this->link = @ftp_ssl_connect($this->options['hostname'], $this->options['port'], FS_CONNECT_TIMEOUT);
  70          else
  71              $this->link = @ftp_connect($this->options['hostname'], $this->options['port'], FS_CONNECT_TIMEOUT);
  72  
  73          if ( ! $this->link ) {
  74              $this->errors->add('connect', sprintf(__('Failed to connect to FTP Server %1$s:%2$s'), $this->options['hostname'], $this->options['port']));
  75              return false;
  76          }
  77  
  78          if ( ! @ftp_login($this->link,$this->options['username'], $this->options['password']) ) {
  79              $this->errors->add('auth', sprintf(__('Username/Password incorrect for %s'), $this->options['username']));
  80              return false;
  81          }
  82  
  83          //Set the Connection to use Passive FTP
  84          @ftp_pasv( $this->link, true );
  85          if ( @ftp_get_option($this->link, FTP_TIMEOUT_SEC) < FS_TIMEOUT )
  86              @ftp_set_option($this->link, FTP_TIMEOUT_SEC, FS_TIMEOUT);
  87  
  88          return true;
  89      }
  90  
  91  	function get_contents($file, $type = '', $resumepos = 0 ) {
  92          if ( empty($type) )
  93              $type = FTP_BINARY;
  94  
  95          $tempfile = wp_tempnam($file);
  96          $temp = fopen($tempfile, 'w+');
  97  
  98          if ( ! $temp )
  99              return false;
 100  
 101          if ( ! @ftp_fget($this->link, $temp, $file, $type, $resumepos) )
 102              return false;
 103  
 104          fseek($temp, 0); //Skip back to the start of the file being written to
 105          $contents = '';
 106  
 107          while ( ! feof($temp) )
 108              $contents .= fread($temp, 8192);
 109  
 110          fclose($temp);
 111          unlink($tempfile);
 112          return $contents;
 113      }
 114  	function get_contents_array($file) {
 115          return explode("\n", $this->get_contents($file));
 116      }
 117  
 118  	function put_contents($file, $contents, $mode = false ) {
 119          $tempfile = wp_tempnam($file);
 120          $temp = fopen($tempfile, 'w+');
 121          if ( ! $temp )
 122              return false;
 123  
 124          fwrite($temp, $contents);
 125          fseek($temp, 0); //Skip back to the start of the file being written to
 126  
 127          $type = $this->is_binary($contents) ? FTP_BINARY : FTP_ASCII;
 128          $ret = @ftp_fput($this->link, $file, $temp, $type);
 129  
 130          fclose($temp);
 131          unlink($tempfile);
 132  
 133          $this->chmod($file, $mode);
 134  
 135          return $ret;
 136      }
 137  	function cwd() {
 138          $cwd = @ftp_pwd($this->link);
 139          if ( $cwd )
 140              $cwd = trailingslashit($cwd);
 141          return $cwd;
 142      }
 143  	function chdir($dir) {
 144          return @ftp_chdir($this->link, $dir);
 145      }
 146  	function chgrp($file, $group, $recursive = false ) {
 147          return false;
 148      }
 149  	function chmod($file, $mode = false, $recursive = false) {
 150          if ( ! $mode ) {
 151              if ( $this->is_file($file) )
 152                  $mode = FS_CHMOD_FILE;
 153              elseif ( $this->is_dir($file) )
 154                  $mode = FS_CHMOD_DIR;
 155              else
 156                  return false;
 157          }
 158  
 159          // chmod any sub-objects if recursive.
 160          if ( $recursive && $this->is_dir($file) ) {
 161              $filelist = $this->dirlist($file);
 162              foreach ( (array)$filelist as $filename => $filemeta )
 163                  $this->chmod($file . '/' . $filename, $mode, $recursive);
 164          }
 165  
 166          // chmod the file or directory
 167          if ( ! function_exists('ftp_chmod') )
 168              return (bool)@ftp_site($this->link, sprintf('CHMOD %o %s', $mode, $file));
 169          return (bool)@ftp_chmod($this->link, $mode, $file);
 170      }
 171  	function chown($file, $owner, $recursive = false ) {
 172          return false;
 173      }
 174  	function owner($file) {
 175          $dir = $this->dirlist($file);
 176          return $dir[$file]['owner'];
 177      }
 178  	function getchmod($file) {
 179          $dir = $this->dirlist($file);
 180          return $dir[$file]['permsn'];
 181      }
 182  	function group($file) {
 183          $dir = $this->dirlist($file);
 184          return $dir[$file]['group'];
 185      }
 186  	function copy($source, $destination, $overwrite = false, $mode = false) {
 187          if ( ! $overwrite && $this->exists($destination) )
 188              return false;
 189          $content = $this->get_contents($source);
 190          if ( false === $content)
 191              return false;
 192          return $this->put_contents($destination, $content, $mode);
 193      }
 194  	function move($source, $destination, $overwrite = false) {
 195          return ftp_rename($this->link, $source, $destination);
 196      }
 197  
 198  	function delete($file, $recursive = false, $type = false) {
 199          if ( empty($file) )
 200              return false;
 201          if ( 'f' == $type || $this->is_file($file) )
 202              return @ftp_delete($this->link, $file);
 203          if ( !$recursive )
 204              return @ftp_rmdir($this->link, $file);
 205  
 206          $filelist = $this->dirlist( trailingslashit($file) );
 207          if ( !empty($filelist) )
 208              foreach ( $filelist as $delete_file )
 209                  $this->delete( trailingslashit($file) . $delete_file['name'], $recursive, $delete_file['type'] );
 210          return @ftp_rmdir($this->link, $file);
 211      }
 212  
 213  	function exists($file) {
 214          $list = @ftp_nlist($this->link, $file);
 215          return !empty($list); //empty list = no file, so invert.
 216      }
 217  	function is_file($file) {
 218          return $this->exists($file) && !$this->is_dir($file);
 219      }
 220  	function is_dir($path) {
 221          $cwd = $this->cwd();
 222          $result = @ftp_chdir($this->link, trailingslashit($path) );
 223          if ( $result && $path == $this->cwd() || $this->cwd() != $cwd ) {
 224              @ftp_chdir($this->link, $cwd);
 225              return true;
 226          }
 227          return false;
 228      }
 229  	function is_readable($file) {
 230          //Get dir list, Check if the file is readable by the current user??
 231          return true;
 232      }
 233  	function is_writable($file) {
 234          //Get dir list, Check if the file is writable by the current user??
 235          return true;
 236      }
 237  	function atime($file) {
 238          return false;
 239      }
 240  	function mtime($file) {
 241          return ftp_mdtm($this->link, $file);
 242      }
 243  	function size($file) {
 244          return ftp_size($this->link, $file);
 245      }
 246  	function touch($file, $time = 0, $atime = 0) {
 247          return false;
 248      }
 249  	function mkdir($path, $chmod = false, $chown = false, $chgrp = false) {
 250          $path = untrailingslashit($path);
 251          if ( empty($path) )
 252              return false;
 253  
 254          if ( !@ftp_mkdir($this->link, $path) )
 255              return false;
 256          $this->chmod($path, $chmod);
 257          if ( $chown )
 258              $this->chown($path, $chown);
 259          if ( $chgrp )
 260              $this->chgrp($path, $chgrp);
 261          return true;
 262      }
 263  	function rmdir($path, $recursive = false) {
 264          return $this->delete($path, $recursive);
 265      }
 266  
 267  	function parselisting($line) {
 268          static $is_windows;
 269          if ( is_null($is_windows) )
 270              $is_windows = stripos( ftp_systype($this->link), 'win') !== false;
 271  
 272          if ( $is_windows && preg_match('/([0-9]{2})-([0-9]{2})-([0-9]{2}) +([0-9]{2}):([0-9]{2})(AM|PM) +([0-9]+|<DIR>) +(.+)/', $line, $lucifer) ) {
 273              $b = array();
 274              if ( $lucifer[3] < 70 )
 275                  $lucifer[3] +=2000;
 276              else
 277                  $lucifer[3] += 1900; // 4digit year fix
 278              $b['isdir'] = ( $lucifer[7] == '<DIR>');
 279              if ( $b['isdir'] )
 280                  $b['type'] = 'd';
 281              else
 282                  $b['type'] = 'f';
 283              $b['size'] = $lucifer[7];
 284              $b['month'] = $lucifer[1];
 285              $b['day'] = $lucifer[2];
 286              $b['year'] = $lucifer[3];
 287              $b['hour'] = $lucifer[4];
 288              $b['minute'] = $lucifer[5];
 289              $b['time'] = @mktime($lucifer[4] + (strcasecmp($lucifer[6], "PM") == 0 ? 12 : 0), $lucifer[5], 0, $lucifer[1], $lucifer[2], $lucifer[3]);
 290              $b['am/pm'] = $lucifer[6];
 291              $b['name'] = $lucifer[8];
 292          } elseif ( !$is_windows && $lucifer = preg_split('/[ ]/', $line, 9, PREG_SPLIT_NO_EMPTY)) {
 293              //echo $line."\n";
 294              $lcount = count($lucifer);
 295              if ( $lcount < 8 )
 296                  return '';
 297              $b = array();
 298              $b['isdir'] = $lucifer[0]{0} === 'd';
 299              $b['islink'] = $lucifer[0]{0} === 'l';
 300              if ( $b['isdir'] )
 301                  $b['type'] = 'd';
 302              elseif ( $b['islink'] )
 303                  $b['type'] = 'l';
 304              else
 305                  $b['type'] = 'f';
 306              $b['perms'] = $lucifer[0];
 307              $b['number'] = $lucifer[1];
 308              $b['owner'] = $lucifer[2];
 309              $b['group'] = $lucifer[3];
 310              $b['size'] = $lucifer[4];
 311              if ( $lcount == 8 ) {
 312                  sscanf($lucifer[5], '%d-%d-%d', $b['year'], $b['month'], $b['day']);
 313                  sscanf($lucifer[6], '%d:%d', $b['hour'], $b['minute']);
 314                  $b['time'] = @mktime($b['hour'], $b['minute'], 0, $b['month'], $b['day'], $b['year']);
 315                  $b['name'] = $lucifer[7];
 316              } else {
 317                  $b['month'] = $lucifer[5];
 318                  $b['day'] = $lucifer[6];
 319                  if ( preg_match('/([0-9]{2}):([0-9]{2})/', $lucifer[7], $l2) ) {
 320                      $b['year'] = date("Y");
 321                      $b['hour'] = $l2[1];
 322                      $b['minute'] = $l2[2];
 323                  } else {
 324                      $b['year'] = $lucifer[7];
 325                      $b['hour'] = 0;
 326                      $b['minute'] = 0;
 327                  }
 328                  $b['time'] = strtotime( sprintf('%d %s %d %02d:%02d', $b['day'], $b['month'], $b['year'], $b['hour'], $b['minute']) );
 329                  $b['name'] = $lucifer[8];
 330              }
 331          }
 332  
 333          return $b;
 334      }
 335  
 336  	function dirlist($path = '.', $include_hidden = true, $recursive = false) {
 337          if ( $this->is_file($path) ) {
 338              $limit_file = basename($path);
 339              $path = dirname($path) . '/';
 340          } else {
 341              $limit_file = false;
 342          }
 343  
 344          $pwd = @ftp_pwd($this->link);
 345          if ( ! @ftp_chdir($this->link, $path) ) // Cant change to folder = folder doesn't exist
 346              return false;
 347          $list = @ftp_rawlist($this->link, '-a', false);
 348          @ftp_chdir($this->link, $pwd);
 349  
 350          if ( empty($list) ) // Empty array = non-existent folder (real folder will show . at least)
 351              return false;
 352  
 353          $dirlist = array();
 354          foreach ( $list as $k => $v ) {
 355              $entry = $this->parselisting($v);
 356              if ( empty($entry) )
 357                  continue;
 358  
 359              if ( '.' == $entry['name'] || '..' == $entry['name'] )
 360                  continue;
 361  
 362              if ( ! $include_hidden && '.' == $entry['name'][0] )
 363                  continue;
 364  
 365              if ( $limit_file && $entry['name'] != $limit_file)
 366                  continue;
 367  
 368              $dirlist[ $entry['name'] ] = $entry;
 369          }
 370  
 371          $ret = array();
 372          foreach ( (array)$dirlist as $struc ) {
 373              if ( 'd' == $struc['type'] ) {
 374                  if ( $recursive )
 375                      $struc['files'] = $this->dirlist($path . '/' . $struc['name'], $include_hidden, $recursive);
 376                  else
 377                      $struc['files'] = array();
 378              }
 379  
 380              $ret[ $struc['name'] ] = $struc;
 381          }
 382          return $ret;
 383      }
 384  
 385  	function __destruct() {
 386          if ( $this->link )
 387              ftp_close($this->link);
 388      }
 389  }