/**
* Send file to browser
*/
function send_file_to_browser($attachment, $upload_dir)
{
$filename = $upload_dir . $attachment;
if (!@file_exists($filename)) {
trigger_error(phpbb::$user->lang['ERROR_NO_ATTACHMENT'] . '<br /><br />' . sprintf(phpbb::$user->lang['FILE_NOT_FOUND_404'], $filename));
}
if (@ob_get_length()) {
@ob_end_clean();
}
// Now send the File Contents to the Browser
$size = @filesize($filename);
// To correctly display further errors we need to make sure we are using the correct headers for both (unsetting content-length may not work)
// Check if headers already sent or not able to get the file contents.
if (headers_sent() || !@file_exists($filename) || !@is_readable($filename)) {
// PHP track_errors setting On?
if (!empty($php_errormsg)) {
trigger_error(phpbb::$user->lang['UNABLE_TO_DELIVER_FILE'] . '<br />' . sprintf(phpbb::$user->lang['TRACKED_PHP_ERROR'], $php_errormsg));
}
trigger_error('UNABLE_TO_DELIVER_FILE');
}
// Now the tricky part... let's dance
header('Pragma: public');
// Send out the Headers. Do not set Content-Disposition to inline please, it is a security measure for users using the Internet Explorer.
$is_ie8 = strpos(strtolower(phpbb::$user->browser), 'msie 8.0') !== false;
header('Content-Type: text/xml');
if ($is_ie8) {
header('X-Content-Type-Options: nosniff');
}
if ($size) {
header("Content-Length: {$size}");
}
// Close the db connection before sending the file
phpbb::$db->sql_close();
if (!set_modified_headers(@filemtime($attachment), phpbb::$user->browser)) {
// Try to deliver in chunks
@set_time_limit(0);
$fp = @fopen($filename, 'rb');
if ($fp !== false) {
while (!feof($fp)) {
echo fread($fp, 8192);
}
fclose($fp);
} else {
@readfile($filename);
}
flush();
}
file_gc();
}
/**
* Send file to browser
*/
function send_file_to_browser($attachment, $upload_dir, $category)
{
global $user, $db, $config, $phpbb_root_path, $request;
$filename = $phpbb_root_path . $upload_dir . '/' . $attachment['physical_filename'];
if (!@file_exists($filename)) {
send_status_line(404, 'Not Found');
trigger_error('ERROR_NO_ATTACHMENT');
}
// Correct the mime type - we force application/octetstream for all files, except images
// Please do not change this, it is a security precaution
if ($category != ATTACHMENT_CATEGORY_IMAGE || strpos($attachment['mimetype'], 'image') !== 0) {
$attachment['mimetype'] = strpos(strtolower($user->browser), 'msie') !== false || strpos(strtolower($user->browser), 'opera') !== false ? 'application/octetstream' : 'application/octet-stream';
}
if (@ob_get_length()) {
@ob_end_clean();
}
// Now send the File Contents to the Browser
$size = @filesize($filename);
// To correctly display further errors we need to make sure we are using the correct headers for both (unsetting content-length may not work)
// Check if headers already sent or not able to get the file contents.
if (headers_sent() || !@file_exists($filename) || !@is_readable($filename)) {
// PHP track_errors setting On?
if (!empty($php_errormsg)) {
send_status_line(500, 'Internal Server Error');
trigger_error($user->lang['UNABLE_TO_DELIVER_FILE'] . '<br />' . sprintf($user->lang['TRACKED_PHP_ERROR'], $php_errormsg));
}
send_status_line(500, 'Internal Server Error');
trigger_error('UNABLE_TO_DELIVER_FILE');
}
// Make sure the database record for the filesize is correct
if ($size > 0 && $size != $attachment['filesize']) {
// Update database record
$sql = 'UPDATE ' . ATTACHMENTS_TABLE . '
SET filesize = ' . (int) $size . '
WHERE attach_id = ' . (int) $attachment['attach_id'];
$db->sql_query($sql);
}
// Now the tricky part... let's dance
header('Cache-Control: public');
// Send out the Headers. Do not set Content-Disposition to inline please, it is a security measure for users using the Internet Explorer.
header('Content-Type: ' . $attachment['mimetype']);
if (phpbb_is_greater_ie_version($user->browser, 7)) {
header('X-Content-Type-Options: nosniff');
}
if ($category == ATTACHMENT_CATEGORY_FLASH && $request->variable('view', 0) === 1) {
// We use content-disposition: inline for flash files and view=1 to let it correctly play with flash player 10 - any other disposition will fail to play inline
header('Content-Disposition: inline');
} else {
if (empty($user->browser) || strpos(strtolower($user->browser), 'msie') !== false && !phpbb_is_greater_ie_version($user->browser, 7)) {
header('Content-Disposition: attachment; ' . header_filename(htmlspecialchars_decode($attachment['real_filename'])));
if (empty($user->browser) || strpos(strtolower($user->browser), 'msie 6.0') !== false) {
header('Expires: ' . gmdate('D, d M Y H:i:s', time()) . ' GMT');
}
} else {
header('Content-Disposition: ' . (strpos($attachment['mimetype'], 'image') === 0 ? 'inline' : 'attachment') . '; ' . header_filename(htmlspecialchars_decode($attachment['real_filename'])));
if (phpbb_is_greater_ie_version($user->browser, 7) && strpos($attachment['mimetype'], 'image') !== 0) {
header('X-Download-Options: noopen');
}
}
}
// Close the db connection before sending the file etc.
file_gc(false);
if (!set_modified_headers($attachment['filetime'], $user->browser)) {
// We make sure those have to be enabled manually by defining a constant
// because of the potential disclosure of full attachment path
// in case support for features is absent in the webserver software.
if (defined('PHPBB_ENABLE_X_ACCEL_REDIRECT') && PHPBB_ENABLE_X_ACCEL_REDIRECT) {
// X-Accel-Redirect - http://wiki.nginx.org/XSendfile
header('X-Accel-Redirect: ' . $user->page['root_script_path'] . $upload_dir . '/' . $attachment['physical_filename']);
exit;
} else {
if (defined('PHPBB_ENABLE_X_SENDFILE') && PHPBB_ENABLE_X_SENDFILE && !phpbb_http_byte_range($size)) {
// X-Sendfile - http://blog.lighttpd.net/articles/2006/07/02/x-sendfile
// Lighttpd's X-Sendfile does not support range requests as of 1.4.26
// and always requires an absolute path.
header('X-Sendfile: ' . dirname(__FILE__) . "/../{$upload_dir}/{$attachment['physical_filename']}");
exit;
}
}
if ($size) {
header("Content-Length: {$size}");
}
// Try to deliver in chunks
@set_time_limit(0);
$fp = @fopen($filename, 'rb');
if ($fp !== false) {
// Deliver file partially if requested
if ($range = phpbb_http_byte_range($size)) {
fseek($fp, $range['byte_pos_start']);
send_status_line(206, 'Partial Content');
header('Content-Range: bytes ' . $range['byte_pos_start'] . '-' . $range['byte_pos_end'] . '/' . $range['bytes_total']);
header('Content-Length: ' . $range['bytes_requested']);
}
while (!feof($fp)) {
echo fread($fp, 8192);
}
fclose($fp);
} else {
@readfile($filename);
}
flush();
}
exit;
}
/**
* Send file to browser
*/
function send_file_to_browser($attachment, $upload_dir)
{
$filename = $upload_dir . $attachment['physical_filename'];
if (!@file_exists($filename)) {
trigger_error(phpbb::$user->lang['ERROR_NO_ATTACHMENT'] . '<br /><br />' . sprintf(phpbb::$user->lang['FILE_NOT_FOUND_404'], $filename));
}
// Correct the mime type - we force application/octetstream for all files, except images
// Please do not change this, it is a security precaution
if (strpos($attachment['mimetype'], 'image') !== 0) {
$attachment['mimetype'] = strpos(strtolower(phpbb::$user->browser), 'msie') !== false || strpos(strtolower(phpbb::$user->browser), 'opera') !== false ? 'application/octetstream' : 'application/octet-stream';
}
if (@ob_get_length()) {
@ob_end_clean();
}
// Now send the File Contents to the Browser
$size = @filesize($filename);
// To correctly display further errors we need to make sure we are using the correct headers for both (unsetting content-length may not work)
// Check if headers already sent or not able to get the file contents.
if (headers_sent() || !@file_exists($filename) || !@is_readable($filename)) {
// PHP track_errors setting On?
if (!empty($php_errormsg)) {
trigger_error(phpbb::$user->lang['UNABLE_TO_DELIVER_FILE'] . '<br />' . sprintf(phpbb::$user->lang['TRACKED_PHP_ERROR'], $php_errormsg));
}
trigger_error('UNABLE_TO_DELIVER_FILE');
}
// Now the tricky part... let's dance
header('Pragma: public');
// Send out the Headers. Do not set Content-Disposition to inline please, it is a security measure for users using the Internet Explorer.
$is_ie8 = strpos(strtolower(phpbb::$user->browser), 'msie 8.0') !== false;
header('Content-Type: ' . $attachment['mimetype']);
if ($is_ie8) {
header('X-Content-Type-Options: nosniff');
}
if (empty(phpbb::$user->browser) || !$is_ie8 && strpos(strtolower(phpbb::$user->browser), 'msie') !== false) {
header('Content-Disposition: attachment; ' . header_filename(htmlspecialchars_decode($attachment['real_filename'])));
if (empty(phpbb::$user->browser) || strpos(strtolower(phpbb::$user->browser), 'msie 6.0') !== false) {
header('expires: -1');
}
} else {
header('Content-Disposition: ' . (strpos($attachment['mimetype'], 'image') === 0 ? 'inline' : 'attachment') . '; ' . header_filename(htmlspecialchars_decode($attachment['real_filename'])));
if ($is_ie8 && strpos($attachment['mimetype'], 'image') !== 0) {
header('X-Download-Options: noopen');
}
}
if ($size) {
header("Content-Length: {$size}");
}
// Close the db connection before sending the file
phpbb::$db->sql_close();
if (!set_modified_headers($attachment['filetime'], phpbb::$user->browser)) {
// Try to deliver in chunks
@set_time_limit(0);
$fp = @fopen($filename, 'rb');
if ($fp !== false) {
while (!feof($fp)) {
echo fread($fp, 8192);
}
fclose($fp);
} else {
@readfile($filename);
}
flush();
}
file_gc();
}
/**
* Send file to browser
*/
function send_file_to_browser($attachment, $upload_dir, $category)
{
global $user, $db, $config, $phpbb_root_path;
$filename = $phpbb_root_path . $upload_dir . '/' . $attachment['physical_filename'];
if (!@file_exists($filename)) {
trigger_error($user->lang['ERROR_NO_ATTACHMENT'] . '<br /><br />' . sprintf($user->lang['FILE_NOT_FOUND_404'], $filename));
}
// Correct the mime type - we force application/octetstream for all files, except images
// Please do not change this, it is a security precaution
if ($category != ATTACHMENT_CATEGORY_IMAGE || strpos($attachment['mimetype'], 'image') !== 0) {
$attachment['mimetype'] = strpos(strtolower($user->browser), 'msie') !== false || strpos(strtolower($user->browser), 'opera') !== false ? 'application/octetstream' : 'application/octet-stream';
}
if (@ob_get_length()) {
@ob_end_clean();
}
// Now send the File Contents to the Browser
$size = @filesize($filename);
// To correctly display further errors we need to make sure we are using the correct headers for both (unsetting content-length may not work)
// Check if headers already sent or not able to get the file contents.
if (headers_sent() || !@file_exists($filename) || !@is_readable($filename)) {
// PHP track_errors setting On?
if (!empty($php_errormsg)) {
trigger_error($user->lang['UNABLE_TO_DELIVER_FILE'] . '<br />' . sprintf($user->lang['TRACKED_PHP_ERROR'], $php_errormsg));
}
trigger_error('UNABLE_TO_DELIVER_FILE');
}
// Now the tricky part... let's dance
header('Pragma: public');
/**
* Commented out X-Sendfile support. To not expose the physical filename within the header if xsendfile is absent we need to look into methods of checking it's status.
*
* Try X-Sendfile since it is much more server friendly - only works if the path is *not* outside of the root path...
* lighttpd has core support for it. An apache2 module is available at http://celebnamer.celebworld.ws/stuff/mod_xsendfile/
*
* Not really ideal, but should work fine...
* <code>
* if (strpos($upload_dir, '/') !== 0 && strpos($upload_dir, '../') === false)
* {
* header('X-Sendfile: ' . $filename);
* }
* </code>
*/
// Send out the Headers. Do not set Content-Disposition to inline please, it is a security measure for users using the Internet Explorer.
$is_ie8 = strpos(strtolower($user->browser), 'msie 8.0') !== false;
header('Content-Type: ' . $attachment['mimetype'] . ($is_ie8 ? '; authoritative=true;' : ''));
if (empty($user->browser) || !$is_ie8 && strpos(strtolower($user->browser), 'msie') !== false) {
header('Content-Disposition: attachment; ' . header_filename(htmlspecialchars_decode($attachment['real_filename'])));
if (empty($user->browser) || strpos(strtolower($user->browser), 'msie 6.0') !== false) {
header('expires: -1');
}
} else {
header('Content-Disposition: ' . (strpos($attachment['mimetype'], 'image') === 0 ? 'inline' : 'attachment') . '; ' . header_filename(htmlspecialchars_decode($attachment['real_filename'])));
if ($is_ie8 && strpos($attachment['mimetype'], 'image') !== 0) {
header('X-Download-Options: noopen');
}
}
if ($size) {
header("Content-Length: {$size}");
}
// Close the db connection before sending the file
$db->sql_close();
if (!set_modified_headers($attachment['filetime'], $user->browser)) {
// Try to deliver in chunks
@set_time_limit(0);
$fp = @fopen($filename, 'rb');
if ($fp !== false) {
while (!feof($fp)) {
echo fread($fp, 8192);
}
fclose($fp);
} else {
@readfile($filename);
}
flush();
}
file_gc();
}
header('Content-Disposition: attachment; ' . header_filename(htmlspecialchars_decode($attachment['real_filename'])));
if (empty($user->browser) || strpos(strtolower($user->browser), 'msie 6.0') !== false) {
header('expires: -1');
}
} else {
header('Content-Disposition: ' . (strpos($attachment['mimetype'], 'image') === 0 ? 'inline' : 'attachment') . '; ' . header_filename(htmlspecialchars_decode($attachment['real_filename'])));
if ($is_ie8 && strpos($attachment['mimetype'], 'image') !== 0) {
header('X-Download-Options: noopen');
}
}
if ($size) {
header("Content-Length: {$size}");
}
// clean up properly before sending the file
garbage_collection();
if (!set_modified_headers($attachment['filetime'], $user->browser)) {
// Try to deliver in chunks
@set_time_limit(0);
$fp = @fopen($filename, 'rb');
if ($fp !== false) {
while (!feof($fp)) {
echo fread($fp, 8192);
}
fclose($fp);
} else {
@readfile($filename);
}
flush();
}
}
// ****************************
$avatar_group = false;
$exit = false;
if (isset($filename[0]) && $filename[0] === 'g') {
$avatar_group = true;
$filename = substr($filename, 1);
}
// '==' is not a bug - . as the first char is as bad as no dot at all
if (strpos($filename, '.') == false) {
send_status_line(403, 'Forbidden');
$exit = true;
}
if (!$exit) {
$ext = substr(strrchr($filename, '.'), 1);
$stamp = (int) substr(stristr($filename, '_'), 1);
$filename = (int) $filename;
$exit = set_modified_headers($stamp, $browser);
}
if (!$exit && !in_array($ext, array('png', 'gif', 'jpg', 'jpeg'))) {
// no way such an avatar could exist. They are not following the rules, stop the show.
send_status_line(403, 'Forbidden');
$exit = true;
}
if (!$exit) {
if (!$filename) {
// no way such an avatar could exist. They are not following the rules, stop the show.
send_status_line(403, 'Forbidden');
} else {
send_avatar_to_browser(($avatar_group ? 'g' : '') . $filename . '.' . $ext, $browser);
}
}
file_gc();
/**
* Sending the image to the browser.
* Mostly copied from phpBB::download/file.php
*/
public function send_image_to_browser($content_length = 0)
{
global $db, $user;
if (!$this->image_content_type) {
// We don't have the image, so we guess the mime_type by filename
$this->image_content_type = $this->mimetype_by_filename($this->image_source);
if (!$this->image_content_type) {
trigger_error('NO_MIMETYPE_MATCHED');
}
}
header('Pragma: public');
header('Content-Type: ' . $this->image_content_type);
if (self::is_ie_greater7($user->browser)) {
header('X-Content-Type-Options: nosniff');
}
if (empty($user->browser) || !self::is_ie_greater7($user->browser) && strpos(strtolower($user->browser), 'msie') !== false) {
header('Content-Disposition: attachment; ' . $this->header_filename(htmlspecialchars_decode($this->image_name)));
if (empty($user->browser) || strpos(strtolower($user->browser), 'msie 6.0') !== false) {
header('expires: -1');
}
} else {
header('Content-Disposition: inline; ' . $this->header_filename(htmlspecialchars_decode($this->image_name)));
if (self::is_ie_greater7($user->browser)) {
header('X-Download-Options: noopen');
}
}
if ($content_length) {
header('Content-Length: ' . $content_length);
}
garbage_collection();
$cached = false;
if ($this->browser_cache) {
$this->set_last_modified(@filemtime($this->image_source));
if (!function_exists('\\set_modified_headers')) {
global $phpbb_root_path, $phpEx;
include $phpbb_root_path . 'includes/functions_download.' . $phpEx;
}
$cached = \set_modified_headers($this->last_modified, $user->browser);
}
if ($cached) {
return;
} else {
if ($this->image) {
$image_function = 'image' . $this->image_type;
$image_function($this->image);
} else {
// Try to deliver in chunks
@set_time_limit(0);
$fp = fopen($this->image_source, 'rb');
if ($fp !== false) {
while (!feof($fp)) {
echo fread($fp, 8192);
}
fclose($fp);
} else {
@readfile($this->image_source);
}
flush();
}
}
}
/**
* Send file to browser
*
* Copy of send_file_to_browser() from functions_download.php
* with some minor modifications to work correctly in Titania.
*
* @param array $attachment Attachment data.
* @param string $filename Full path to the attachment file.
* @param int $category Attachment category.
*
* @return \Symfony\Component\HttpFoundation\Response if error found. Otherwise method exits.
*/
protected function send_file_to_browser($attachment, $filename, $category)
{
if (!@file_exists($filename)) {
return $this->helper->error('ERROR_NO_ATTACHMENT', 404);
}
// Correct the mime type - we force application/octetstream for all files, except images
// Please do not change this, it is a security precaution
if ($category != ATTACHMENT_CATEGORY_IMAGE || strpos($attachment['mimetype'], 'image') !== 0) {
$attachment['mimetype'] = strpos(strtolower($this->user->browser), 'msie') !== false || strpos(strtolower($this->user->browser), 'opera') !== false ? 'application/octetstream' : 'application/octet-stream';
}
if (@ob_get_length()) {
@ob_end_clean();
}
// Now send the File Contents to the Browser
$size = @filesize($filename);
// To correctly display further errors we need to make sure we are using the correct headers for both (unsetting content-length may not work)
// Check if headers already sent or not able to get the file contents.
if (headers_sent() || !@file_exists($filename) || !@is_readable($filename)) {
// PHP track_errors setting On?
if (!empty($php_errormsg)) {
return $this->helper->error($this->user->lang['UNABLE_TO_DELIVER_FILE'] . '<br />' . $this->user->lang('TRACKED_PHP_ERROR', $php_errormsg), self::INTERNAL_SERVER_ERROR);
}
return $this->helper->error('UNABLE_TO_DELIVER_FILE', self::INTERNAL_SERVER_ERROR);
}
// Make sure the database record for the filesize is correct
if ($size > 0 && $size != $attachment['filesize']) {
// Update database record
$sql = 'UPDATE ' . TITANIA_ATTACHMENTS_TABLE . '
SET filesize = ' . (int) $size . '
WHERE attachment_id = ' . (int) $attachment['attachment_id'];
$this->db->sql_query($sql);
}
// Now the tricky part... let's dance
header('Pragma: public');
// Send out the Headers. Do not set Content-Disposition to inline please, it is a security measure for users using the Internet Explorer.
header('Content-Type: ' . $attachment['mimetype']);
if (phpbb_is_greater_ie_version($this->user->browser, 7)) {
header('X-Content-Type-Options: nosniff');
}
if ($category == ATTACHMENT_CATEGORY_FLASH && request_var('view', 0) === 1) {
// We use content-disposition: inline for flash files and view=1 to let it correctly play with flash player 10 - any other disposition will fail to play inline
header('Content-Disposition: inline');
} else {
if (empty($this->user->browser) || strpos(strtolower($this->user->browser), 'msie') !== false && !phpbb_is_greater_ie_version($this->user->browser, 7)) {
header('Content-Disposition: attachment; ' . header_filename(htmlspecialchars_decode($attachment['real_filename'])));
if (empty($this->user->browser) || strpos(strtolower($this->user->browser), 'msie 6.0') !== false) {
header('expires: -1');
}
} else {
header('Content-Disposition: ' . (strpos($attachment['mimetype'], 'image') === 0 ? 'inline' : 'attachment') . '; ' . header_filename(htmlspecialchars_decode($attachment['real_filename'])));
if (phpbb_is_greater_ie_version($this->user->browser, 7) && strpos($attachment['mimetype'], 'image') !== 0) {
header('X-Download-Options: noopen');
}
}
}
if ($size) {
header("Content-Length: {$size}");
}
// Close the db connection before sending the file etc.
file_gc(false);
if (!set_modified_headers($attachment['filetime'], $this->user->browser)) {
// Try to deliver in chunks
@set_time_limit(0);
$fp = @fopen($filename, 'rb');
if ($fp !== false) {
// Deliver file partially if requested
if ($range = phpbb_http_byte_range($size)) {
fseek($fp, $range['byte_pos_start']);
send_status_line(206, 'Partial Content');
header('Content-Range: bytes ' . $range['byte_pos_start'] . '-' . $range['byte_pos_end'] . '/' . $range['bytes_total']);
header('Content-Length: ' . $range['bytes_requested']);
}
while (!feof($fp)) {
echo fread($fp, 8192);
}
fclose($fp);
} else {
@readfile($filename);
}
flush();
}
exit;
}
