forked from GNUsocial/gnu-social
53 lines
2.1 KiB
PHP
53 lines
2.1 KiB
PHP
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<?php
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if (!defined('GNUSOCIAL')) { exit(1); }
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/**
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* Download notice attachment
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*
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* @category Personal
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* @package GNUsocial
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* @author Mikael Nordfeldth <mmn@hethane.se>
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* @license https://www.gnu.org/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link https:/gnu.io/social
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*/
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class Attachment_viewAction extends AttachmentAction
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{
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public function showPage()
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{
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// Checks file exists or throws FileNotStoredLocallyException
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$filepath = $this->attachment->getPath();
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$filename = MediaFile::getDisplayName($this->attachment);
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// Disable errors, to not mess with the file contents (suppress errors in case access to this
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// function is blocked, like in some shared hosts). Automatically reset at the end of the
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// script execution, and we don't want to have any more errors until then, so don't reset it
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@ini_set('display_errors', 0);
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header("Content-Description: File Transfer");
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header("Content-Type: {$this->attachment->mimetype}");
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if (in_array(common_get_mime_media($this->attachment->mimetype), ['image', 'video'])) {
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header("Content-Disposition: inline; filename=\"{$filename}\"");
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} else {
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header("Content-Disposition: attachment; filename=\"{$filename}\"");
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}
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header('Expires: 0');
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header('Content-Transfer-Encoding: binary'); // FIXME? Can this be different?
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$filesize = $this->attachment->size;
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// 'if available', it says, so ensure we have it
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if (empty($filesize)) {
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$filesize = filesize($this->attachment->filename);
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}
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header("Content-Length: {$filesize}");
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// header('Cache-Control: private, no-transform, no-store, must-revalidate');
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$ret = @readfile($filepath);
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if ($ret === false || $ret !== $filesize) {
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common_log(LOG_ERR, "The lengths of the file as recorded on the DB (or on disk) for the file " .
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"{$filepath}, with id={$this->attachment->id} differ from what was sent to the user.");
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}
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}
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}
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