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