3 * @copyright Copyright (C) 2020, Friendica
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\Module;
24 use Friendica\BaseModule;
25 use Friendica\Core\Logger;
26 use Friendica\Core\System;
28 use Friendica\Model\Photo as MPhoto;
33 class Photo extends BaseModule
38 * Fetch a photo or an avatar, in optional size, check for permissions and
41 public static function init(array $parameters = [])
44 // @TODO: Replace with parameter from router
45 if ($a->argc <= 1 || $a->argc > 4) {
46 throw new \Friendica\Network\HTTPException\BadRequestException();
49 if (isset($_SERVER["HTTP_IF_MODIFIED_SINCE"])) {
50 header("HTTP/1.1 304 Not Modified");
51 header("Last-Modified: " . gmdate("D, d M Y H:i:s", time()) . " GMT");
52 if (!empty($_SERVER["HTTP_IF_NONE_MATCH"])) {
53 header("Etag: " . $_SERVER["HTTP_IF_NONE_MATCH"]);
55 header("Expires: " . gmdate("D, d M Y H:i:s", time() + (31536000)) . " GMT");
56 header("Cache-Control: max-age=31536000");
57 if (function_exists("header_remove")) {
58 header_remove("Last-Modified");
59 header_remove("Expires");
60 header_remove("Cache-Control");
67 // @TODO: Replace with parameter from router
70 $customsize = intval($a->argv[2]);
71 $uid = MPhoto::stripExtension($a->argv[3]);
72 $photo = self::getAvatar($uid, $a->argv[1]);
75 $uid = MPhoto::stripExtension($a->argv[2]);
76 $photo = self::getAvatar($uid, $a->argv[1]);
79 $photoid = MPhoto::stripExtension($a->argv[1]);
81 if (substr($photoid, -2, 1) == "-") {
82 $scale = intval(substr($photoid, -1, 1));
83 $photoid = substr($photoid, 0, -2);
85 $photo = MPhoto::getPhoto($photoid, $scale);
86 if ($photo === false) {
87 $photo = MPhoto::createPhotoForSystemResource("images/nosign.jpg");
92 if ($photo === false) {
93 System::httpExit('404', 'Not Found');
96 $cacheable = ($photo["allow_cid"] . $photo["allow_gid"] . $photo["deny_cid"] . $photo["deny_gid"] === "") && (isset($photo["cacheable"]) ? $photo["cacheable"] : true);
98 $img = MPhoto::getImageForPhoto($photo);
100 if (is_null($img) || !$img->isValid()) {
101 Logger::log("Invalid photo with id {$photo["id"]}.");
102 throw new \Friendica\Network\HTTPException\InternalServerErrorException(DI::l10n()->t('Invalid photo with id %s.', $photo["id"]));
105 // if customsize is set and image is not a gif, resize it
106 if ($img->getType() !== "image/gif" && $customsize > 0 && $customsize < 501) {
107 $img->scaleToSquare($customsize);
110 if (function_exists("header_remove")) {
111 header_remove("Pragma");
112 header_remove("pragma");
115 header("Content-type: " . $img->getType());
118 // it is a private photo that they have no permission to view.
119 // tell the browser not to cache it, in case they authenticate
120 // and subsequently have permission to see it
121 header("Cache-Control: no-store, no-cache, must-revalidate");
123 $md5 = md5($img->asString());
124 header("Last-Modified: " . gmdate("D, d M Y H:i:s", time()) . " GMT");
125 header("Etag: \"{$md5}\"");
126 header("Expires: " . gmdate("D, d M Y H:i:s", time() + (31536000)) . " GMT");
127 header("Cache-Control: max-age=31536000");
130 echo $img->asString();
135 private static function getAvatar($uid, $type="avatar")
142 $default = "images/person-300.jpg";
146 $default = "images/person-48.jpg";
151 $default = "images/person-80.jpg";
154 $photo = MPhoto::selectFirst([], ["scale" => $scale, "uid" => $uid, "profile" => 1]);
155 if ($photo === false) {
156 $photo = MPhoto::createPhotoForSystemResource($default);