File "class-ftp-pure.php"

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<?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");
        }
    }
}