ftp.inc

<?php


/**
 * Base class for FTP implementations.
 */
abstract class FileTransferFTP extends FileTransfer {
    public function __construct($jail, $username, $password, $hostname, $port) {
        $this->username = $username;
        $this->password = $password;
        $this->hostname = $hostname;
        $this->port = $port;
        parent::__construct($jail);
    }
    
    /**
     * Return an object which can implement the FTP protocol.
     *
     * @param string $jail
     * @param array $settings
     * @return FileTransferFTP
     *   The appropriate FileTransferFTP subclass based on the available
     *   options. If the FTP PHP extension is available, use it.
     */
    static function factory($jail, $settings) {
        $username = empty($settings['username']) ? '' : $settings['username'];
        $password = empty($settings['password']) ? '' : $settings['password'];
        $hostname = empty($settings['advanced']['hostname']) ? 'localhost' : $settings['advanced']['hostname'];
        $port = empty($settings['advanced']['port']) ? 21 : $settings['advanced']['port'];
        if (function_exists('ftp_connect')) {
            $class = 'FileTransferFTPExtension';
        }
        else {
            throw new FileTransferException('No FTP backend available.');
        }
        return new $class($jail, $username, $password, $hostname, $port);
    }
    
    /**
     * Returns the form to configure the FileTransfer class for FTP.
     */
    public function getSettingsForm() {
        $form = parent::getSettingsForm();
        $form['advanced']['port']['#default_value'] = 21;
        return $form;
    }

}
class FileTransferFTPExtension extends FileTransferFTP implements FileTransferChmodInterface {
    public function connect() {
        $this->connection = ftp_connect($this->hostname, $this->port);
        if (!$this->connection) {
            throw new FileTransferException("Cannot connect to FTP Server, check settings");
        }
        if (!ftp_login($this->connection, $this->username, $this->password)) {
            throw new FileTransferException("Cannot log in to FTP server. Check username and password");
        }
    }
    protected function copyFileJailed($source, $destination) {
        if (!@ftp_put($this->connection, $destination, $source, FTP_BINARY)) {
            throw new FileTransferException("Cannot move @source to @destination", NULL, array(
                "@source" => $source,
                "@destination" => $destination,
            ));
        }
    }
    protected function createDirectoryJailed($directory) {
        if (!ftp_mkdir($this->connection, $directory)) {
            throw new FileTransferException("Cannot create directory @directory", NULL, array(
                "@directory" => $directory,
            ));
        }
    }
    protected function removeDirectoryJailed($directory) {
        $pwd = ftp_pwd($this->connection);
        if (!ftp_chdir($this->connection, $directory)) {
            throw new FileTransferException("Unable to change to directory @directory", NULL, array(
                '@directory' => $directory,
            ));
        }
        $list = @ftp_nlist($this->connection, '.');
        if (!$list) {
            $list = array();
        }
        foreach ($list as $item) {
            if ($item == '.' || $item == '..') {
                continue;
            }
            if (@ftp_chdir($this->connection, $item)) {
                ftp_cdup($this->connection);
                $this->removeDirectory(ftp_pwd($this->connection) . '/' . $item);
            }
            else {
                $this->removeFile(ftp_pwd($this->connection) . '/' . $item);
            }
        }
        ftp_chdir($this->connection, $pwd);
        if (!ftp_rmdir($this->connection, $directory)) {
            throw new FileTransferException("Unable to remove to directory @directory", NULL, array(
                '@directory' => $directory,
            ));
        }
    }
    protected function removeFileJailed($destination) {
        if (!ftp_delete($this->connection, $destination)) {
            throw new FileTransferException("Unable to remove to file @file", NULL, array(
                '@file' => $destination,
            ));
        }
    }
    public function isDirectory($path) {
        $result = FALSE;
        $curr = ftp_pwd($this->connection);
        if (@ftp_chdir($this->connection, $path)) {
            $result = TRUE;
        }
        ftp_chdir($this->connection, $curr);
        return $result;
    }
    public function isFile($path) {
        return ftp_size($this->connection, $path) != -1;
    }
    function chmodJailed($path, $mode, $recursive) {
        if (!ftp_chmod($this->connection, $mode, $path)) {
            throw new FileTransferException("Unable to set permissions on %file", NULL, array(
                '%file' => $path,
            ));
        }
        if ($this->isDirectory($path) && $recursive) {
            $filelist = @ftp_nlist($this->connection, $path);
            if (!$filelist) {
                
                //empty directory - returns false
                return;
            }
            foreach ($filelist as $file) {
                $this->chmodJailed($file, $mode, $recursive);
            }
        }
    }

}
if (!function_exists('ftp_chmod')) {
    function ftp_chmod($ftp_stream, $mode, $filename) {
        return ftp_site($ftp_stream, sprintf('CHMOD %o %s', $mode, $filename));
    }
}