gnu-social/actions/attachment_view.php

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<?php
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// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GNU social is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
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defined('GNUSOCIAL') || die();
/**
* View notice attachment
*
* @package GNUsocial
* @author Miguel Dantas <biodantasgs@gmail.com>
* @license https://www.gnu.org/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
*/
class Attachment_viewAction extends AttachmentAction
{
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public function showPage(): void
{
// Disable errors, to not mess with the file contents (suppress errors in case access to this
// function is blocked, like in some shared hosts). Automatically reset at the end of the
// script execution, and we don't want to have any more errors until then, so don't reset it
@ini_set('display_errors', 0);
header("Content-Description: File Transfer");
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header("Content-Type: {$this->mimetype}");
if (in_array(common_get_mime_media($this->mimetype), ['image', 'video'])) {
header("Content-Disposition: inline; filename=\"{$this->filename}\"");
} else {
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header("Content-Disposition: attachment; filename=\"{$this->filename}\"");
}
header('Expires: 0');
header('Content-Transfer-Encoding: binary');
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parent::sendFile();
}
}