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

   1 <?php
   2 /**
   3  * PemFTP - A Ftp implementation in pure PHP
   4  *
   5  * @package PemFTP
   6  * @since 2.5.0
   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  * Socket Based FTP implementation
  17  *
  18  * @package PemFTP
  19  * @subpackage Socket
  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_sockets extends ftp_base {
  29
  30         function __construct($verb=FALSE, $le=FALSE) {
  31                 parent::__construct(true, $verb, $le);
  32         }
  33
  34 // <!-- --------------------------------------------------------------------------------------- -->
  35 // <!--       Private functions                                                                 -->
  36 // <!-- --------------------------------------------------------------------------------------- -->
  37
  38         function _settimeout($sock) {
  39                 if(!@socket_set_option($sock, SOL_SOCKET, SO_RCVTIMEO, array("sec"=>$this->_timeout, "usec"=>0))) {
  40                         $this->PushError('_connect','socket set receive timeout',socket_strerror(socket_last_error($sock)));
  41                         @socket_close($sock);
  42                         return FALSE;
  43                 }
  44                 if(!@socket_set_option($sock, SOL_SOCKET , SO_SNDTIMEO, array("sec"=>$this->_timeout, "usec"=>0))) {
  45                         $this->PushError('_connect','socket set send timeout',socket_strerror(socket_last_error($sock)));
  46                         @socket_close($sock);
  47                         return FALSE;
  48                 }
  49                 return true;
  50         }
  51
  52         function _connect($host, $port) {
  53                 $this->SendMSG("Creating socket");
  54                 if(!($sock = @socket_create(AF_INET, SOCK_STREAM, SOL_TCP))) {
  55                         $this->PushError('_connect','socket create failed',socket_strerror(socket_last_error($sock)));
  56                         return FALSE;
  57                 }
  58                 if(!$this->_settimeout($sock)) return FALSE;
  59                 $this->SendMSG("Connecting to \"".$host.":".$port."\"");
  60                 if (!($res = @socket_connect($sock, $host, $port))) {
  61                         $this->PushError('_connect','socket connect failed',socket_strerror(socket_last_error($sock)));
  62                         @socket_close($sock);
  63                         return FALSE;
  64                 }
  65                 $this->_connected=true;
  66                 return $sock;
  67         }
  68
  69         function _readmsg($fnction="_readmsg"){
  70                 if(!$this->_connected) {
  71                         $this->PushError($fnction,'Connect first');
  72                         return FALSE;
  73                 }
  74                 $result=true;
  75                 $this->_message="";
  76                 $this->_code=0;
  77                 $go=true;
  78                 do {
  79                         $tmp=@socket_read($this->_ftp_control_sock, 4096, PHP_BINARY_READ);
  80                         if($tmp===false) {
  81                                 $go=$result=false;
  82                                 $this->PushError($fnction,'Read failed', socket_strerror(socket_last_error($this->_ftp_control_sock)));
  83                         } else {
  84                                 $this->_message.=$tmp;
  85                                 $go = !preg_match("/^([0-9]{3})(-.+\\1)? [^".CRLF."]+".CRLF."$/Us", $this->_message, $regs);
  86                         }
  87                 } while($go);
  88                 if($this->LocalEcho) echo "GET < ".rtrim($this->_message, CRLF).CRLF;
  89                 $this->_code=(int)$regs[1];
  90                 return $result;
  91         }
  92
  93         function _exec($cmd, $fnction="_exec") {
  94                 if(!$this->_ready) {
  95                         $this->PushError($fnction,'Connect first');
  96                         return FALSE;
  97                 }
  98                 if($this->LocalEcho) echo "PUT > ",$cmd,CRLF;
  99                 $status=@socket_write($this->_ftp_control_sock, $cmd.CRLF);
 100                 if($status===false) {
 101                         $this->PushError($fnction,'socket write failed', socket_strerror(socket_last_error($this->stream)));
 102                         return FALSE;
 103                 }
 104                 $this->_lastaction=time();
 105                 if(!$this->_readmsg($fnction)) return FALSE;
 106                 return TRUE;
 107         }
 108
 109         function _data_prepare($mode=FTP_ASCII) {
 110                 if(!$this->_settype($mode)) return FALSE;
 111                 $this->SendMSG("Creating data socket");
 112                 $this->_ftp_data_sock = @socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
 113                 if ($this->_ftp_data_sock < 0) {
 114                         $this->PushError('_data_prepare','socket create failed',socket_strerror(socket_last_error($this->_ftp_data_sock)));
 115                         return FALSE;
 116                 }
 117                 if(!$this->_settimeout($this->_ftp_data_sock)) {
 118                         $this->_data_close();
 119                         return FALSE;
 120                 }
 121                 if($this->_passive) {
 122                         if(!$this->_exec("PASV", "pasv")) {
 123                                 $this->_data_close();
 124                                 return FALSE;
 125                         }
 126                         if(!$this->_checkCode()) {
 127                                 $this->_data_close();
 128                                 return FALSE;
 129                         }
 130                         $ip_port = explode(",", preg_replace("/^.+ \\(?([0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]+,[0-9]+)\\)?.*$/s", "\\1", $this->_message));
 131                         $this->_datahost=$ip_port[0].".".$ip_port[1].".".$ip_port[2].".".$ip_port[3];
 132                         $this->_dataport=(((int)$ip_port[4])<<8) + ((int)$ip_port[5]);
 133                         $this->SendMSG("Connecting to ".$this->_datahost.":".$this->_dataport);
 134                         if(!@socket_connect($this->_ftp_data_sock, $this->_datahost, $this->_dataport)) {
 135                                 $this->PushError("_data_prepare","socket_connect", socket_strerror(socket_last_error($this->_ftp_data_sock)));
 136                                 $this->_data_close();
 137                                 return FALSE;
 138                         }
 139                         else $this->_ftp_temp_sock=$this->_ftp_data_sock;
 140                 } else {
 141                         if(!@socket_getsockname($this->_ftp_control_sock, $addr, $port)) {
 142                                 $this->PushError("_data_prepare","can't get control socket information", socket_strerror(socket_last_error($this->_ftp_control_sock)));
 143                                 $this->_data_close();
 144                                 return FALSE;
 145                         }
 146                         if(!@socket_bind($this->_ftp_data_sock,$addr)){
 147                                 $this->PushError("_data_prepare","can't bind data socket", socket_strerror(socket_last_error($this->_ftp_data_sock)));
 148                                 $this->_data_close();
 149                                 return FALSE;
 150                         }
 151                         if(!@socket_listen($this->_ftp_data_sock)) {
 152                                 $this->PushError("_data_prepare","can't listen data socket", socket_strerror(socket_last_error($this->_ftp_data_sock)));
 153                                 $this->_data_close();
 154                                 return FALSE;
 155                         }
 156                         if(!@socket_getsockname($this->_ftp_data_sock, $this->_datahost, $this->_dataport)) {
 157                                 $this->PushError("_data_prepare","can't get data socket information", socket_strerror(socket_last_error($this->_ftp_data_sock)));
 158                                 $this->_data_close();
 159                                 return FALSE;
 160                         }
 161                         if(!$this->_exec('PORT '.str_replace('.',',',$this->_datahost.'.'.($this->_dataport>>8).'.'.($this->_dataport&0x00FF)), "_port")) {
 162                                 $this->_data_close();
 163                                 return FALSE;
 164                         }
 165                         if(!$this->_checkCode()) {
 166                                 $this->_data_close();
 167                                 return FALSE;
 168                         }
 169                 }
 170                 return TRUE;
 171         }
 172
 173         function _data_read($mode=FTP_ASCII, $fp=NULL) {
 174                 $NewLine=$this->_eol_code[$this->OS_local];
 175                 if(is_resource($fp)) $out=0;
 176                 else $out="";
 177                 if(!$this->_passive) {
 178                         $this->SendMSG("Connecting to ".$this->_datahost.":".$this->_dataport);
 179                         $this->_ftp_temp_sock=socket_accept($this->_ftp_data_sock);
 180                         if($this->_ftp_temp_sock===FALSE) {
 181                                 $this->PushError("_data_read","socket_accept", socket_strerror(socket_last_error($this->_ftp_temp_sock)));
 182                                 $this->_data_close();
 183                                 return FALSE;
 184                         }
 185                 }
 186
 187                 while(($block=@socket_read($this->_ftp_temp_sock, $this->_ftp_buff_size, PHP_BINARY_READ))!==false) {
 188                         if($block==="") break;
 189                         if($mode!=FTP_BINARY) $block=preg_replace("/\r\n|\r|\n/", $this->_eol_code[$this->OS_local], $block);
 190                         if(is_resource($fp)) $out+=fwrite($fp, $block, strlen($block));
 191                         else $out.=$block;
 192                 }
 193                 return $out;
 194         }
 195
 196         function _data_write($mode=FTP_ASCII, $fp=NULL) {
 197                 $NewLine=$this->_eol_code[$this->OS_local];
 198                 if(is_resource($fp)) $out=0;
 199                 else $out="";
 200                 if(!$this->_passive) {
 201                         $this->SendMSG("Connecting to ".$this->_datahost.":".$this->_dataport);
 202                         $this->_ftp_temp_sock=socket_accept($this->_ftp_data_sock);
 203                         if($this->_ftp_temp_sock===FALSE) {
 204                                 $this->PushError("_data_write","socket_accept", socket_strerror(socket_last_error($this->_ftp_temp_sock)));
 205                                 $this->_data_close();
 206                                 return false;
 207                         }
 208                 }
 209                 if(is_resource($fp)) {
 210                         while(!feof($fp)) {
 211                                 $block=fread($fp, $this->_ftp_buff_size);
 212                                 if(!$this->_data_write_block($mode, $block)) return false;
 213                         }
 214                 } elseif(!$this->_data_write_block($mode, $fp)) return false;
 215                 return true;
 216         }
 217
 218         function _data_write_block($mode, $block) {
 219                 if($mode!=FTP_BINARY) $block=preg_replace("/\r\n|\r|\n/", $this->_eol_code[$this->OS_remote], $block);
 220                 do {
 221                         if(($t=@socket_write($this->_ftp_temp_sock, $block))===FALSE) {
 222                                 $this->PushError("_data_write","socket_write", socket_strerror(socket_last_error($this->_ftp_temp_sock)));
 223                                 $this->_data_close();
 224                                 return FALSE;
 225                         }
 226                         $block=substr($block, $t);
 227                 } while(!empty($block));
 228                 return true;
 229         }
 230
 231         function _data_close() {
 232                 @socket_close($this->_ftp_temp_sock);
 233                 @socket_close($this->_ftp_data_sock);
 234                 $this->SendMSG("Disconnected data from remote host");
 235                 return TRUE;
 236         }
 237
 238         function _quit() {
 239                 if($this->_connected) {
 240                         @socket_close($this->_ftp_control_sock);
 241                         $this->_connected=false;
 242                         $this->SendMSG("Socket closed");
 243                 }
 244         }
 245 }
 246 ?>