247 lines
8.3 KiB
PHP
247 lines
8.3 KiB
PHP
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<?php
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/**
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* PemFTP - An Ftp implementation in pure PHP
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*
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* @package PemFTP
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* @since 2.5.0
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*
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* @version 1.0
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* @copyright Alexey Dotsenko
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* @author Alexey Dotsenko
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* @link https://www.phpclasses.org/package/1743-PHP-FTP-client-in-pure-PHP.html
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* @license LGPL https://opensource.org/licenses/lgpl-license.html
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*/
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/**
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* Socket Based FTP implementation
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*
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* @package PemFTP
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* @subpackage Socket
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* @since 2.5.0
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*
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* @version 1.0
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* @copyright Alexey Dotsenko
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* @author Alexey Dotsenko
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* @link https://www.phpclasses.org/package/1743-PHP-FTP-client-in-pure-PHP.html
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* @license LGPL https://opensource.org/licenses/lgpl-license.html
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*/
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class ftp_sockets extends ftp_base {
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function __construct($verb=FALSE, $le=FALSE) {
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parent::__construct(true, $verb, $le);
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}
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// <!-- --------------------------------------------------------------------------------------- -->
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// <!-- Private functions -->
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// <!-- --------------------------------------------------------------------------------------- -->
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function _settimeout($sock) {
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if(!@socket_set_option($sock, SOL_SOCKET, SO_RCVTIMEO, array("sec"=>$this->_timeout, "usec"=>0))) {
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$this->PushError('_connect','socket set receive timeout',socket_strerror(socket_last_error($sock)));
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@socket_close($sock);
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return FALSE;
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}
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if(!@socket_set_option($sock, SOL_SOCKET , SO_SNDTIMEO, array("sec"=>$this->_timeout, "usec"=>0))) {
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$this->PushError('_connect','socket set send timeout',socket_strerror(socket_last_error($sock)));
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@socket_close($sock);
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return FALSE;
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}
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return true;
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}
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function _connect($host, $port) {
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$this->SendMSG("Creating socket");
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if(!($sock = @socket_create(AF_INET, SOCK_STREAM, SOL_TCP))) {
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$this->PushError('_connect','socket create failed',socket_strerror(socket_last_error($sock)));
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return FALSE;
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}
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if(!$this->_settimeout($sock)) return FALSE;
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$this->SendMSG("Connecting to \"".$host.":".$port."\"");
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if (!($res = @socket_connect($sock, $host, $port))) {
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$this->PushError('_connect','socket connect failed',socket_strerror(socket_last_error($sock)));
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@socket_close($sock);
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return FALSE;
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}
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$this->_connected=true;
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return $sock;
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}
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function _readmsg($fnction="_readmsg"){
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if(!$this->_connected) {
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$this->PushError($fnction,'Connect first');
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return FALSE;
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}
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$result=true;
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$this->_message="";
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$this->_code=0;
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$go=true;
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do {
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$tmp=@socket_read($this->_ftp_control_sock, 4096, PHP_BINARY_READ);
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if($tmp===false) {
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$go=$result=false;
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$this->PushError($fnction,'Read failed', socket_strerror(socket_last_error($this->_ftp_control_sock)));
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} else {
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$this->_message.=$tmp;
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$go = !preg_match("/^([0-9]{3})(-.+\\1)? [^".CRLF."]+".CRLF."$/Us", $this->_message, $regs);
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}
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} while($go);
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if($this->LocalEcho) echo "GET < ".rtrim($this->_message, CRLF).CRLF;
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$this->_code=(int)$regs[1];
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return $result;
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}
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function _exec($cmd, $fnction="_exec") {
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if(!$this->_ready) {
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$this->PushError($fnction,'Connect first');
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return FALSE;
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}
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if($this->LocalEcho) echo "PUT > ",$cmd,CRLF;
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$status=@socket_write($this->_ftp_control_sock, $cmd.CRLF);
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if($status===false) {
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$this->PushError($fnction,'socket write failed', socket_strerror(socket_last_error($this->stream)));
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return FALSE;
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}
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$this->_lastaction=time();
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if(!$this->_readmsg($fnction)) return FALSE;
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return TRUE;
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}
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function _data_prepare($mode=FTP_ASCII) {
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if(!$this->_settype($mode)) return FALSE;
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$this->SendMSG("Creating data socket");
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$this->_ftp_data_sock = @socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
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if ($this->_ftp_data_sock < 0) {
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$this->PushError('_data_prepare','socket create failed',socket_strerror(socket_last_error($this->_ftp_data_sock)));
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return FALSE;
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}
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if(!$this->_settimeout($this->_ftp_data_sock)) {
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$this->_data_close();
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return FALSE;
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}
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if($this->_passive) {
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if(!$this->_exec("PASV", "pasv")) {
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$this->_data_close();
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return FALSE;
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}
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if(!$this->_checkCode()) {
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$this->_data_close();
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return FALSE;
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}
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$ip_port = explode(",", preg_replace("/^.+ \\(?([0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]+,[0-9]+)\\)?.*$/s", "\\1", $this->_message));
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$this->_datahost=$ip_port[0].".".$ip_port[1].".".$ip_port[2].".".$ip_port[3];
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$this->_dataport=(((int)$ip_port[4])<<8) + ((int)$ip_port[5]);
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$this->SendMSG("Connecting to ".$this->_datahost.":".$this->_dataport);
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if(!@socket_connect($this->_ftp_data_sock, $this->_datahost, $this->_dataport)) {
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$this->PushError("_data_prepare","socket_connect", socket_strerror(socket_last_error($this->_ftp_data_sock)));
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$this->_data_close();
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return FALSE;
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}
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else $this->_ftp_temp_sock=$this->_ftp_data_sock;
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} else {
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if(!@socket_getsockname($this->_ftp_control_sock, $addr, $port)) {
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$this->PushError("_data_prepare","can't get control socket information", socket_strerror(socket_last_error($this->_ftp_control_sock)));
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$this->_data_close();
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return FALSE;
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}
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if(!@socket_bind($this->_ftp_data_sock,$addr)){
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$this->PushError("_data_prepare","can't bind data socket", socket_strerror(socket_last_error($this->_ftp_data_sock)));
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$this->_data_close();
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return FALSE;
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}
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if(!@socket_listen($this->_ftp_data_sock)) {
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$this->PushError("_data_prepare","can't listen data socket", socket_strerror(socket_last_error($this->_ftp_data_sock)));
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$this->_data_close();
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return FALSE;
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}
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if(!@socket_getsockname($this->_ftp_data_sock, $this->_datahost, $this->_dataport)) {
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$this->PushError("_data_prepare","can't get data socket information", socket_strerror(socket_last_error($this->_ftp_data_sock)));
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$this->_data_close();
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return FALSE;
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}
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if(!$this->_exec('PORT '.str_replace('.',',',$this->_datahost.'.'.($this->_dataport>>8).'.'.($this->_dataport&0x00FF)), "_port")) {
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$this->_data_close();
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return FALSE;
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}
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if(!$this->_checkCode()) {
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$this->_data_close();
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return FALSE;
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}
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}
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return TRUE;
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}
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function _data_read($mode=FTP_ASCII, $fp=NULL) {
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$NewLine=$this->_eol_code[$this->OS_local];
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if(is_resource($fp)) $out=0;
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else $out="";
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if(!$this->_passive) {
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$this->SendMSG("Connecting to ".$this->_datahost.":".$this->_dataport);
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$this->_ftp_temp_sock=socket_accept($this->_ftp_data_sock);
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if($this->_ftp_temp_sock===FALSE) {
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$this->PushError("_data_read","socket_accept", socket_strerror(socket_last_error($this->_ftp_temp_sock)));
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$this->_data_close();
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return FALSE;
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}
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}
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while(($block=@socket_read($this->_ftp_temp_sock, $this->_ftp_buff_size, PHP_BINARY_READ))!==false) {
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if($block==="") break;
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if($mode!=FTP_BINARY) $block=preg_replace("/\r\n|\r|\n/", $this->_eol_code[$this->OS_local], $block);
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if(is_resource($fp)) $out+=fwrite($fp, $block, strlen($block));
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else $out.=$block;
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}
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return $out;
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}
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function _data_write($mode=FTP_ASCII, $fp=NULL) {
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$NewLine=$this->_eol_code[$this->OS_local];
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if(is_resource($fp)) $out=0;
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else $out="";
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if(!$this->_passive) {
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$this->SendMSG("Connecting to ".$this->_datahost.":".$this->_dataport);
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$this->_ftp_temp_sock=socket_accept($this->_ftp_data_sock);
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if($this->_ftp_temp_sock===FALSE) {
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$this->PushError("_data_write","socket_accept", socket_strerror(socket_last_error($this->_ftp_temp_sock)));
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$this->_data_close();
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return false;
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}
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}
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if(is_resource($fp)) {
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while(!feof($fp)) {
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$block=fread($fp, $this->_ftp_buff_size);
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if(!$this->_data_write_block($mode, $block)) return false;
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}
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} elseif(!$this->_data_write_block($mode, $fp)) return false;
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return true;
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}
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function _data_write_block($mode, $block) {
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if($mode!=FTP_BINARY) $block=preg_replace("/\r\n|\r|\n/", $this->_eol_code[$this->OS_remote], $block);
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do {
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if(($t=@socket_write($this->_ftp_temp_sock, $block))===FALSE) {
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$this->PushError("_data_write","socket_write", socket_strerror(socket_last_error($this->_ftp_temp_sock)));
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$this->_data_close();
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return FALSE;
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}
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$block=substr($block, $t);
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} while(!empty($block));
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return true;
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}
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function _data_close() {
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@socket_close($this->_ftp_temp_sock);
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@socket_close($this->_ftp_data_sock);
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$this->SendMSG("Disconnected data from remote host");
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return TRUE;
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}
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function _quit() {
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if($this->_connected) {
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@socket_close($this->_ftp_control_sock);
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$this->_connected=false;
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$this->SendMSG("Socket closed");
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}
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}
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}
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?>
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