<?php
class ftp_pure extends ftp_base
{
function __construct($verb = FALSE, $le = FALSE)
{
parent::__construct(false, $verb, $le);
}
function _settimeout($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");
}
}
}