- * Remote upload method

- * Uploads file from given url

- *

- * @param string $upload_url URL pointing to file to upload, for example http://www.foobar.com/example.gif

- * @return filespec $file Object "filespec" is returned, all further operations can be done with this object

- * @access public

- */

- function remote_upload($upload_url)

- {

- $upload_ary = array();

- $upload_ary['local_mode'] = true;

-

- if (!preg_match('#^(https?://).*?\.(' . implode('|', $this->allowed_extensions) . ')$#i', $upload_url, $match))

- {

- return $this->factory->get('filespec')->set_error($this->language->lang($this->error_prefix . 'URL_INVALID'));

- }

-

- if (empty($match[2]))

- {

- return $this->factory->get('filespec')->set_error($this->language->lang($this->error_prefix . 'URL_INVALID'));

- }

-

- $url = parse_url($upload_url);

-

- $host = $url['host'];

- $path = $url['path'];

- $port = (!empty($url['port'])) ? (int) $url['port'] : 80;

-

- $upload_ary['type'] = 'application/octet-stream';

-

- $url['path'] = explode('.', $url['path']);

- $ext = array_pop($url['path']);

-

- $url['path'] = implode('', $url['path']);

- $upload_ary['name'] = utf8_basename($url['path']) . (($ext) ? '.' . $ext : '');

- $filename = $url['path'];

- $filesize = 0;

-

- $remote_max_filesize = $this->max_filesize;

- if (!$remote_max_filesize)

- {

- $max_filesize = @ini_get('upload_max_filesize');

-

- if (!empty($max_filesize))

- {

- $unit = strtolower(substr($max_filesize, -1, 1));

- $remote_max_filesize = (int) $max_filesize;

-

- switch ($unit)

- {

- case 'g':

- $remote_max_filesize *= 1024;

- // no break

- case 'm':

- $remote_max_filesize *= 1024;

- // no break

- case 'k':

- $remote_max_filesize *= 1024;

- // no break

- }

- }

- }

-

- $errno = 0;

- $errstr = '';

-

- if (!($fsock = @fsockopen($host, $port, $errno, $errstr)))

- {

- return $this->factory->get('filespec')->set_error($this->language->lang($this->error_prefix . 'NOT_UPLOADED'));

- }

-

- // Make sure $path not beginning with /

- if (strpos($path, '/') === 0)

- {

- $path = substr($path, 1);

- }

-

- fputs($fsock, 'GET /' . $path . " HTTP/1.1\r\n");

- fputs($fsock, "HOST: " . $host . "\r\n");

- fputs($fsock, "Connection: close\r\n\r\n");

-

- // Set a proper timeout for the socket

- socket_set_timeout($fsock, $this->upload_timeout);

-

- $get_info = false;

- $data = '';

- $length = false;

- $timer_stop = time() + $this->upload_timeout;

-

- while ((!$length || $filesize < $length) && !@feof($fsock))

- {

- if ($get_info)

- {

- if ($length)

- {

- // Don't attempt to read past end of file if server indicated length

- $block = @fread($fsock, min($length - $filesize, 1024));

- }

- else

- {

- $block = @fread($fsock, 1024);

- }

-

- $filesize += strlen($block);

-

- if ($remote_max_filesize && $filesize > $remote_max_filesize)

- {

- $max_filesize = get_formatted_filesize($remote_max_filesize, false);

-

- return $this->factory->get('filespec')->set_error($this->language->lang($this->error_prefix . 'WRONG_FILESIZE', $max_filesize['value'], $max_filesize['unit']));

- }

-

- $data .= $block;

- }

- else

- {

- $line = @fgets($fsock, 1024);

-

- if ($line == "\r\n")

- {

- $get_info = true;

- }

- else

- {

- if (stripos($line, 'content-type: ') !== false)

- {

- $upload_ary['type'] = rtrim(str_replace('content-type: ', '', strtolower($line)));

- }

- else if ($this->max_filesize && stripos($line, 'content-length: ') !== false)

- {

- $length = (int) str_replace('content-length: ', '', strtolower($line));

-

- if ($remote_max_filesize && $length && $length > $remote_max_filesize)

- {

- $max_filesize = get_formatted_filesize($remote_max_filesize, false);

-

- return $this->factory->get('filespec')->set_error($this->language->lang($this->error_prefix . 'WRONG_FILESIZE', $max_filesize['value'], $max_filesize['unit']));

- }

- }

- else if (stripos($line, '404 not found') !== false)

- {

- return $this->factory->get('filespec')->set_error($this->error_prefix . 'URL_NOT_FOUND');

- }

- }

- }

-

- $stream_meta_data = stream_get_meta_data($fsock);

-

- // Cancel upload if we exceed timeout

- if (!empty($stream_meta_data['timed_out']) || time() >= $timer_stop)

- {

- return $this->factory->get('filespec')->set_error($this->error_prefix . 'REMOTE_UPLOAD_TIMEOUT');

- }

- }

- @fclose($fsock);

-

- if (empty($data))

- {

- return $this->factory->get('filespec')->set_error($this->error_prefix . 'EMPTY_REMOTE_DATA');

- }

-

- $tmp_path = (!@ini_get('safe_mode') || strtolower(@ini_get('safe_mode')) == 'off') ? false : $this->phpbb_root_path . 'cache';

- $filename = tempnam($tmp_path, unique_id() . '-');

-

- if (!($fp = @fopen($filename, 'wb')))

- {

- return $this->factory->get('filespec')->set_error($this->error_prefix . 'NOT_UPLOADED');

- }

-

- $upload_ary['size'] = fwrite($fp, $data);

- fclose($fp);

- unset($data);

-

- $upload_ary['tmp_name'] = $filename;

-

- /** @var filespec $file */

- $file = $this->factory->get('filespec')

- ->set_upload_ary($upload_ary)

- ->set_upload_namespace($this);

- $this->common_checks($file);

-

- return $file;

- }

-

- /**