<?php
/**
* PemFTP - An Ftp implementation in pure PHP
*
* @package PemFTP
* @since 2.5.0
*
* @version 1.0
* @copyright Alexey Dotsenko
* @author Alexey Dotsenko
* @link https://www.phpclasses.org/package/1743-PHP-FTP-client-in-pure-PHP.html
* @license LGPL https://opensource.org/licenses/lgpl-license.html
*/
/**
* FTP implementation using fsockopen to connect.
*
* @package PemFTP
* @subpackage Pure
* @since 2.5.0
*
* @version 1.0
* @copyright Alexey Dotsenko
* @author Alexey Dotsenko
* @link https://www.phpclasses.org/package/1743-PHP-FTP-client-in-pure-PHP.html
* @license LGPL https://opensource.org/licenses/lgpl-license.html
*/
class ftp_pure extends ftp_base {
function __construct($verb=FALSE, $le=FALSE) {
parent::__construct(false, $verb, $le);
}
// <!-- --------------------------------------------------------------------------------------- -->
// <!-- Private functions -->
// <!-- --------------------------------------------------------------------------------------- -->
function _settimeout($sock) {
if(!@stream_set_timeout($sock, $this->_timeout)) {
$this->PushError('_settimeout','socket set send timeout');
$this->_quit();
return FALSE;
}
return TRUE;
}
function _connect($host, $port) {
$this->SendMSG("Creating socket");
$sock = @fsockopen($host, $port, $errno, $errstr, $this->_timeout);
if (!$sock) {
$this->PushError('_connect','socket connect failed', $errstr." (".$errno.")");
return FALSE;
}
$this->_connected=true;
return $sock;
}
function _readmsg($fnction="_readmsg"){
if(!$this->_connected) {
$this->PushError($fnction, 'Connect first');
return FALSE;
}
$result=true;
$this->_message="";
$this->_code=0;
$go=true;
do {
$tmp=@fgets($this->_ftp_control_sock, 512);
if($tmp===false) {
$go=$result=false;
$this->PushError($fnction,'Read failed');
} else {
$this->_message.=$tmp;
if(preg_match("/^([0-9]{3})(-(.*[".CRLF."]{1,2})+\\1)? [^".CRLF."]+[".CRLF."]{1,2}$/", $this->_message, $regs)) $go=false;
}
} while($go);
if($this->LocalEcho) echo "GET < ".rtrim($this->_message, CRLF).CRLF;
$this->_code=(int)$regs[1];
return $result;
}
function _exec($cmd, $fnction="_exec") {
if(!$this->_ready) {
$this->PushError($fnction,'Connect first');
return FALSE;
}
if($this->LocalEcho) echo "PUT > ",$cmd,CRLF;
$status=@fputs($this->_ftp_control_sock, $cmd.CRLF);
if($status===false) {
$this->PushError($fnction,'socket write failed');
return FALSE;
}
$this->_lastaction=time();
if(!$this->_readmsg($fnction)) return FALSE;
return TRUE;
}
function _data_prepare($mode=FTP_ASCII) {
if(!$this->_settype($mode)) return FALSE;
if($this->_passive) {
if(!$this->_exec("PASV", "pasv")) {
$this->_data_close();
return FALSE;
}
if(!$this->_checkCode()) {
$this->_data_close();
return FALSE;
}
$ip_port = explode(",", preg_replace("/^.+ \\(?([0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]+,[0-9]+)\\)?.*$/s", "\\1", $this->_message));
$this->_datahost=$ip_port[0].".".$ip_port[1].".".$ip_port[2].".".$ip_port[3];
$this->_dataport=(((int)$ip_port[4])<<8) + ((int)$ip_port[5]);
$this->SendMSG("Connecting to ".$this->_datahost.":".$this->_dataport);
$this->_ftp_data_sock=@fsockopen($this->_datahost, $this->_dataport, $errno, $errstr, $this->_timeout);
if(!$this->_ftp_data_sock) {
$this->PushError("_data_prepare","fsockopen fails", $errstr." (".$errno.")");
$this->_data_close();
return FALSE;
}
else $this->_ftp_data_sock;
} else {
$this->SendMSG("Only passive connections available!");
return FALSE;
}
return TRUE;
}
function _data_read($mode=FTP_ASCII, $fp=NULL) {
if(is_resource($fp)) $out=0;
else $out="";
if(!$this->_passive) {
$this->SendMSG("Only passive connections available!");
return FALSE;
}
while (!feof($this->_ftp_data_sock)) {
$block=fread($this->_ftp_data_sock, $this->_ftp_buff_size);
if($mode!=FTP_BINARY) $block=preg_replace("/\r\n|\r|\n/", $this->_eol_code[$this->OS_local], $block);
if(is_resource($fp)) $out+=fwrite($fp, $block, strlen($block));
else $out.=$block;
}
return $out;
}
function _data_write($mode=FTP_ASCII, $fp=NULL) {
if(is_resource($fp)) $out=0;
else $out="";
if(!$this->_passive) {
$this->SendMSG("Only passive connections available!");
return FALSE;
}
if(is_resource($fp)) {
while(!feof($fp)) {
$block=fread($fp, $this->_ftp_buff_size);
if(!$this->_data_write_block($mode, $block)) return false;
}
} elseif(!$this->_data_write_block($mode, $fp)) return false;
return TRUE;
}
function _data_write_block($mode, $block) {
if($mode!=FTP_BINARY) $block=preg_replace("/\r\n|\r|\n/", $this->_eol_code[$this->OS_remote], $block);
do {
if(($t=@fwrite($this->_ftp_data_sock, $block))===FALSE) {
$this->PushError("_data_write","Can't write to socket");
return FALSE;
}
$block=substr($block, $t);
} while(!empty($block));
return true;
}
function _data_close() {
@fclose($this->_ftp_data_sock);
$this->SendMSG("Disconnected data from remote host");
return TRUE;
}
function _quit($force=FALSE) {
if($this->_connected or $force) {
@fclose($this->_ftp_control_sock);
$this->_connected=false;
$this->SendMSG("Socket closed");
}
}
}
?>
في ظل التحول الرقمي المتسارع، أصبح التسويق الإلكتروني أحد أهم الأدوات التي تعتمد عليها المؤسسات والشركات لتحقيق الانتشار والوصول إلى جمهور أوسع.
في هذا الحوار التسجيلي، نسلّط الضوء على مفهوم التسويق الإلكتروني، أهميته في العصر الحديث، وكيف غيّر قواعد اللعبة في عالم المال والأعمال.
ال