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PHP Script  |  2008-03-12  |  8.0 KB  |  237 lines
  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. ?>
  237.