wp-admin/includes/class-ftp-pure.php

   1 <?php
   2 /**
   3  * PemFTP - A Ftp implementation in pure PHP
   4  *
   5  * @package PemFTP
   6  * @since 2.5.0
   7  *
   8  * @version 1.0
   9  * @copyright Alexey Dotsenko
  10  * @author Alexey Dotsenko
  11  * @link http://www.phpclasses.org/browse/package/1743.html Site
  12  * @license LGPL http://www.opensource.org/licenses/lgpl-license.html
  13  */
  14
  15 /**
  16  * FTP implementation using fsockopen to connect.
  17  *
  18  * @package PemFTP
  19  * @subpackage Pure
  20  * @since 2.5.0
  21  *
  22  * @version 1.0
  23  * @copyright Alexey Dotsenko
  24  * @author Alexey Dotsenko
  25  * @link http://www.phpclasses.org/browse/package/1743.html Site
  26  * @license LGPL http://www.opensource.org/licenses/lgpl-license.html
  27  */
  28 class ftp extends ftp_base {
  29
  30         function __construct($verb=FALSE, $le=FALSE) {
  31                 parent::__construct(false, $verb, $le);
  32         }
  33
  34         function ftp($verb=FALSE, $le=FALSE) {
  35                 $this->__construct($verb, $le);
  36         }
  37
  38 // <!-- --------------------------------------------------------------------------------------- -->
  39 // <!--       Private functions                                                                 -->
  40 // <!-- --------------------------------------------------------------------------------------- -->
  41
  42         function _settimeout($sock) {
  43                 if(!@stream_set_timeout($sock, $this->_timeout)) {
  44                         $this->PushError('_settimeout','socket set send timeout');
  45                         $this->_quit();
  46                         return FALSE;
  47                 }
  48                 return TRUE;
  49         }
  50
  51         function _connect($host, $port) {
  52                 $this->SendMSG("Creating socket");
  53                 $sock = @fsockopen($host, $port, $errno, $errstr, $this->_timeout);
  54                 if (!$sock) {
  55                         $this->PushError('_connect','socket connect failed', $errstr." (".$errno.")");
  56                         return FALSE;
  57                 }
  58                 $this->_connected=true;
  59                 return $sock;
  60         }
  61
  62         function _readmsg($fnction="_readmsg"){
  63                 if(!$this->_connected) {
  64                         $this->PushError($fnction, 'Connect first');
  65                         return FALSE;
  66                 }
  67                 $result=true;
  68                 $this->_message="";
  69                 $this->_code=0;
  70                 $go=true;
  71                 do {
  72                         $tmp=@fgets($this->_ftp_control_sock, 512);
  73                         if($tmp===false) {
  74                                 $go=$result=false;
  75                                 $this->PushError($fnction,'Read failed');
  76                         } else {
  77                                 $this->_message.=$tmp;
  78                                 if(preg_match("/^([0-9]{3})(-(.*[".CRLF."]{1,2})+\\1)? [^".CRLF."]+[".CRLF."]{1,2}$/", $this->_message, $regs)) $go=false;
  79                         }
  80                 } while($go);
  81                 if($this->LocalEcho) echo "GET < ".rtrim($this->_message, CRLF).CRLF;
  82                 $this->_code=(int)$regs[1];
  83                 return $result;
  84         }
  85
  86         function _exec($cmd, $fnction="_exec") {
  87                 if(!$this->_ready) {
  88                         $this->PushError($fnction,'Connect first');
  89                         return FALSE;
  90                 }
  91                 if($this->LocalEcho) echo "PUT > ",$cmd,CRLF;
  92                 $status=@fputs($this->_ftp_control_sock, $cmd.CRLF);
  93                 if($status===false) {
  94                         $this->PushError($fnction,'socket write failed');
  95                         return FALSE;
  96                 }
  97                 $this->_lastaction=time();
  98                 if(!$this->_readmsg($fnction)) return FALSE;
  99                 return TRUE;
 100         }
 101
 102         function _data_prepare($mode=FTP_ASCII) {
 103                 if(!$this->_settype($mode)) return FALSE;
 104                 if($this->_passive) {
 105                         if(!$this->_exec("PASV", "pasv")) {
 106                                 $this->_data_close();
 107                                 return FALSE;
 108                         }
 109                         if(!$this->_checkCode()) {
 110                                 $this->_data_close();
 111                                 return FALSE;
 112                         }
 113                         $ip_port = explode(",", preg_replace("/^.+ \\(?([0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]+,[0-9]+)\\)?.*$/s", "\\1", $this->_message));
 114                         $this->_datahost=$ip_port[0].".".$ip_port[1].".".$ip_port[2].".".$ip_port[3];
 115             $this->_dataport=(((int)$ip_port[4])<<8) + ((int)$ip_port[5]);
 116                         $this->SendMSG("Connecting to ".$this->_datahost.":".$this->_dataport);
 117                         $this->_ftp_data_sock=@fsockopen($this->_datahost, $this->_dataport, $errno, $errstr, $this->_timeout);
 118                         if(!$this->_ftp_data_sock) {
 119                                 $this->PushError("_data_prepare","fsockopen fails", $errstr." (".$errno.")");
 120                                 $this->_data_close();
 121                                 return FALSE;
 122                         }
 123                         else $this->_ftp_data_sock;
 124                 } else {
 125                         $this->SendMSG("Only passive connections available!");
 126                         return FALSE;
 127                 }
 128                 return TRUE;
 129         }
 130
 131         function _data_read($mode=FTP_ASCII, $fp=NULL) {
 132                 if(is_resource($fp)) $out=0;
 133                 else $out="";
 134                 if(!$this->_passive) {
 135                         $this->SendMSG("Only passive connections available!");
 136                         return FALSE;
 137                 }
 138                 while (!feof($this->_ftp_data_sock)) {
 139                         $block=fread($this->_ftp_data_sock, $this->_ftp_buff_size);
 140                         if($mode!=FTP_BINARY) $block=preg_replace("/\r\n|\r|\n/", $this->_eol_code[$this->OS_local], $block);
 141                         if(is_resource($fp)) $out+=fwrite($fp, $block, strlen($block));
 142                         else $out.=$block;
 143                 }
 144                 return $out;
 145         }
 146
 147         function _data_write($mode=FTP_ASCII, $fp=NULL) {
 148                 if(is_resource($fp)) $out=0;
 149                 else $out="";
 150                 if(!$this->_passive) {
 151                         $this->SendMSG("Only passive connections available!");
 152                         return FALSE;
 153                 }
 154                 if(is_resource($fp)) {
 155                         while(!feof($fp)) {
 156                                 $block=fread($fp, $this->_ftp_buff_size);
 157                                 if(!$this->_data_write_block($mode, $block)) return false;
 158                         }
 159                 } elseif(!$this->_data_write_block($mode, $fp)) return false;
 160                 return TRUE;
 161         }
 162
 163         function _data_write_block($mode, $block) {
 164                 if($mode!=FTP_BINARY) $block=preg_replace("/\r\n|\r|\n/", $this->_eol_code[$this->OS_remote], $block);
 165                 do {
 166                         if(($t=@fwrite($this->_ftp_data_sock, $block))===FALSE) {
 167                                 $this->PushError("_data_write","Can't write to socket");
 168                                 return FALSE;
 169                         }
 170                         $block=substr($block, $t);
 171                 } while(!empty($block));
 172                 return true;
 173         }
 174
 175         function _data_close() {
 176                 @fclose($this->_ftp_data_sock);
 177                 $this->SendMSG("Disconnected data from remote host");
 178                 return TRUE;
 179         }
 180
 181         function _quit($force=FALSE) {
 182                 if($this->_connected or $force) {
 183                         @fclose($this->_ftp_control_sock);
 184                         $this->_connected=false;
 185                         $this->SendMSG("Socket closed");
 186                 }
 187         }
 188 }
 189
 190 ?>