wp-admin/includes/class-ftp-sockets.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(true, $verb, $le);
  22         }
  23
  24 // <!-- --------------------------------------------------------------------------------------- -->
  25 // <!--       Private functions                                                                 -->
  26 // <!-- --------------------------------------------------------------------------------------- -->
  27
  28         function _settimeout($sock) {
  29                 if(!@socket_set_option($sock, SOL_SOCKET, SO_RCVTIMEO, array("sec"=>$this->_timeout, "usec"=>0))) {
  30                         $this->PushError('_connect','socket set receive timeout',socket_strerror(socket_last_error($sock)));
  31                         @socket_close($sock);
  32                         return FALSE;
  33                 }
  34                 if(!@socket_set_option($sock, SOL_SOCKET , SO_SNDTIMEO, array("sec"=>$this->_timeout, "usec"=>0))) {
  35                         $this->PushError('_connect','socket set send timeout',socket_strerror(socket_last_error($sock)));
  36                         @socket_close($sock);
  37                         return FALSE;
  38                 }
  39                 return true;
  40         }
  41
  42         function _connect($host, $port) {
  43                 $this->SendMSG("Creating socket");
  44                 if(!($sock = @socket_create(AF_INET, SOCK_STREAM, SOL_TCP))) {
  45                         $this->PushError('_connect','socket create failed',socket_strerror(socket_last_error($sock)));
  46                         return FALSE;
  47                 }
  48                 if(!$this->_settimeout($sock)) return FALSE;
  49                 $this->SendMSG("Connecting to \"".$host.":".$port."\"");
  50                 if (!($res = @socket_connect($sock, $host, $port))) {
  51                         $this->PushError('_connect','socket connect failed',socket_strerror(socket_last_error($sock)));
  52                         @socket_close($sock);
  53                         return FALSE;
  54                 }
  55                 $this->_connected=true;
  56                 return $sock;
  57         }
  58
  59         function _readmsg($fnction="_readmsg"){
  60                 if(!$this->_connected) {
  61                         $this->PushError($fnction,'Connect first');
  62                         return FALSE;
  63                 }
  64                 $result=true;
  65                 $this->_message="";
  66                 $this->_code=0;
  67                 $go=true;
  68                 do {
  69                         $tmp=@socket_read($this->_ftp_control_sock, 4096, PHP_BINARY_READ);
  70                         if($tmp===false) {
  71                                 $go=$result=false;
  72                                 $this->PushError($fnction,'Read failed', socket_strerror(socket_last_error($this->_ftp_control_sock)));
  73                         } else {
  74                                 $this->_message.=$tmp;
  75                                 $go = !preg_match("/^([0-9]{3})(-.+\\1)? [^".CRLF."]+".CRLF."$/Us", $this->_message, $regs);
  76                         }
  77                 } while($go);
  78                 if($this->LocalEcho) echo "GET < ".rtrim($this->_message, CRLF).CRLF;
  79                 $this->_code=(int)$regs[1];
  80                 return $result;
  81         }
  82
  83         function _exec($cmd, $fnction="_exec") {
  84                 if(!$this->_ready) {
  85                         $this->PushError($fnction,'Connect first');
  86                         return FALSE;
  87                 }
  88                 if($this->LocalEcho) echo "PUT > ",$cmd,CRLF;
  89                 $status=@socket_write($this->_ftp_control_sock, $cmd.CRLF);
  90                 if($status===false) {
  91                         $this->PushError($fnction,'socket write failed', socket_strerror(socket_last_error($this->stream)));
  92                         return FALSE;
  93                 }
  94                 $this->_lastaction=time();
  95                 if(!$this->_readmsg($fnction)) return FALSE;
  96                 return TRUE;
  97         }
  98
  99         function _data_prepare($mode=FTP_ASCII) {
 100                 if(!$this->_settype($mode)) return FALSE;
 101                 $this->SendMSG("Creating data socket");
 102                 $this->_ftp_data_sock = @socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
 103                 if ($this->_ftp_data_sock < 0) {
 104                         $this->PushError('_data_prepare','socket create failed',socket_strerror(socket_last_error($this->_ftp_data_sock)));
 105                         return FALSE;
 106                 }
 107                 if(!$this->_settimeout($this->_ftp_data_sock)) {
 108                         $this->_data_close();
 109                         return FALSE;
 110                 }
 111                 if($this->_passive) {
 112                         if(!$this->_exec("PASV", "pasv")) {
 113                                 $this->_data_close();
 114                                 return FALSE;
 115                         }
 116                         if(!$this->_checkCode()) {
 117                                 $this->_data_close();
 118                                 return FALSE;
 119                         }
 120                         $ip_port = explode(",", ereg_replace("^.+ \\(?([0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]+,[0-9]+)\\)?.*".CRLF."$", "\\1", $this->_message));
 121                         $this->_datahost=$ip_port[0].".".$ip_port[1].".".$ip_port[2].".".$ip_port[3];
 122             $this->_dataport=(((int)$ip_port[4])<<8) + ((int)$ip_port[5]);
 123                         $this->SendMSG("Connecting to ".$this->_datahost.":".$this->_dataport);
 124                         if(!@socket_connect($this->_ftp_data_sock, $this->_datahost, $this->_dataport)) {
 125                                 $this->PushError("_data_prepare","socket_connect", socket_strerror(socket_last_error($this->_ftp_data_sock)));
 126                                 $this->_data_close();
 127                                 return FALSE;
 128                         }
 129                         else $this->_ftp_temp_sock=$this->_ftp_data_sock;
 130                 } else {
 131                         if(!@socket_getsockname($this->_ftp_control_sock, $addr, $port)) {
 132                                 $this->PushError("_data_prepare","can't get control socket information", socket_strerror(socket_last_error($this->_ftp_control_sock)));
 133                                 $this->_data_close();
 134                                 return FALSE;
 135                         }
 136                         if(!@socket_bind($this->_ftp_data_sock,$addr)){
 137                                 $this->PushError("_data_prepare","can't bind data socket", socket_strerror(socket_last_error($this->_ftp_data_sock)));
 138                                 $this->_data_close();
 139                                 return FALSE;
 140                         }
 141                         if(!@socket_listen($this->_ftp_data_sock)) {
 142                                 $this->PushError("_data_prepare","can't listen data socket", socket_strerror(socket_last_error($this->_ftp_data_sock)));
 143                                 $this->_data_close();
 144                                 return FALSE;
 145                         }
 146                         if(!@socket_getsockname($this->_ftp_data_sock, $this->_datahost, $this->_dataport)) {
 147                                 $this->PushError("_data_prepare","can't get data socket information", socket_strerror(socket_last_error($this->_ftp_data_sock)));
 148                                 $this->_data_close();
 149                                 return FALSE;
 150                         }
 151                         if(!$this->_exec('PORT '.str_replace('.',',',$this->_datahost.'.'.($this->_dataport>>8).'.'.($this->_dataport&0x00FF)), "_port")) {
 152                                 $this->_data_close();
 153                                 return FALSE;
 154                         }
 155                         if(!$this->_checkCode()) {
 156                                 $this->_data_close();
 157                                 return FALSE;
 158                         }
 159                 }
 160                 return TRUE;
 161         }
 162
 163         function _data_read($mode=FTP_ASCII, $fp=NULL) {
 164                 $NewLine=$this->_eol_code[$this->OS_local];
 165                 if(is_resource($fp)) $out=0;
 166                 else $out="";
 167                 if(!$this->_passive) {
 168                         $this->SendMSG("Connecting to ".$this->_datahost.":".$this->_dataport);
 169                         $this->_ftp_temp_sock=socket_accept($this->_ftp_data_sock);
 170                         if($this->_ftp_temp_sock===FALSE) {
 171                                 $this->PushError("_data_read","socket_accept", socket_strerror(socket_last_error($this->_ftp_temp_sock)));
 172                                 $this->_data_close();
 173                                 return FALSE;
 174                         }
 175                 }
 176
 177                 while(($block=@socket_read($this->_ftp_temp_sock, $this->_ftp_buff_size, PHP_BINARY_READ))!==false) {
 178                         if($block==="") break;
 179                         if($mode!=FTP_BINARY) $block=preg_replace("/\r\n|\r|\n/", $this->_eol_code[$this->OS_local], $block);
 180                         if(is_resource($fp)) $out+=fwrite($fp, $block, strlen($block));
 181                         else $out.=$block;
 182                 }
 183                 return $out;
 184         }
 185
 186         function _data_write($mode=FTP_ASCII, $fp=NULL) {
 187                 $NewLine=$this->_eol_code[$this->OS_local];
 188                 if(is_resource($fp)) $out=0;
 189                 else $out="";
 190                 if(!$this->_passive) {
 191                         $this->SendMSG("Connecting to ".$this->_datahost.":".$this->_dataport);
 192                         $this->_ftp_temp_sock=socket_accept($this->_ftp_data_sock);
 193                         if($this->_ftp_temp_sock===FALSE) {
 194                                 $this->PushError("_data_write","socket_accept", socket_strerror(socket_last_error($this->_ftp_temp_sock)));
 195                                 $this->_data_close();
 196                                 return false;
 197                         }
 198                 }
 199                 if(is_resource($fp)) {
 200                         while(!feof($fp)) {
 201                                 $block=fread($fp, $this->_ftp_buff_size);
 202                                 if(!$this->_data_write_block($mode, $block)) return false;
 203                         }
 204                 } elseif(!$this->_data_write_block($mode, $fp)) return false;
 205                 return true;
 206         }
 207
 208         function _data_write_block($mode, $block) {
 209                 if($mode!=FTP_BINARY) $block=preg_replace("/\r\n|\r|\n/", $this->_eol_code[$this->OS_remote], $block);
 210                 do {
 211                         if(($t=@socket_write($this->_ftp_temp_sock, $block))===FALSE) {
 212                                 $this->PushError("_data_write","socket_write", socket_strerror(socket_last_error($this->_ftp_temp_sock)));
 213                                 $this->_data_close();
 214                                 return FALSE;
 215                         }
 216                         $block=substr($block, $t);
 217                 } while(!empty($block));
 218                 return true;
 219         }
 220
 221         function _data_close() {
 222                 @socket_close($this->_ftp_temp_sock);
 223                 @socket_close($this->_ftp_data_sock);
 224                 $this->SendMSG("Disconnected data from remote host");
 225                 return TRUE;
 226         }
 227
 228         function _quit() {
 229                 if($this->_connected) {
 230                         @socket_close($this->_ftp_control_sock);
 231                         $this->_connected=false;
 232                         $this->SendMSG("Socket closed");
 233                 }
 234         }
 235 }
 236 ?>