3 * @file src/Module/Photo.php
6 namespace Friendica\Module;
8 use Friendica\BaseModule;
9 use Friendica\Core\Logger;
10 use Friendica\Model\Photo as MPhoto;
11 use Friendica\Object\Image;
12 use Friendica\Util\Security;
13 use Friendica\Network\HTTPException\NotFoundException;
14 use Friendica\Network\HTTPException\BadRequestException;
15 use Friendica\Network\HTTPException\InternalServerErrorException;
20 class Photo extends BaseModule
24 * @brief Module initializer
26 * Fetch a photo or an avatar, in optional size, check for permissions and
29 public static function init()
32 if ($a->argc <= 1 || $a->argc > 4) {
33 throw new BadRequestException();
37 if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
38 header('HTTP/1.1 304 Not Modified');
39 header("Last-Modified: " . gmdate("D, d M Y H:i:s", time()) . " GMT");
40 if (!empty($_SERVER['HTTP_IF_NONE_MATCH'])) {
41 header('Etag: ' . $_SERVER['HTTP_IF_NONE_MATCH']);
43 header("Expires: " . gmdate("D, d M Y H:i:s", time() + (31536000)) . " GMT");
44 header("Cache-Control: max-age=31536000");
45 if (function_exists('header_remove')) {
46 header_remove('Last-Modified');
47 header_remove('Expires');
48 header_remove('Cache-Control');
56 $customsize = intval($a->argv[2]);
57 $uid = self::stripExtension($a->argv[3]);
58 $photo = self::getAvatar($uid, $a->argv[1]);
61 $uid = self::stripExtension($a->argv[2]);
62 $photo = self::getAvatar($uid, $a->argv[1]);
65 $photoid = self::stripExtension($a->argv[1]);
67 if (substr($photoid, -2, 1) == '-') {
68 $scale = intval(substr($photoid, -1, 1));
69 $photoid = substr($photoid, 0, -2);
71 $photo = MPhoto::getPhoto($photoid, $scale);
76 header($_SERVER["SERVER_PROTOCOL"] . " 404 Not Found" , true, 404);
80 $cacheable = ($photo["allow_cid"].$photo["allow_gid"].$photo["deny_cid"].$photo["deny_gid"] === "") && (isset($photo["cacheable"])?$photo["cacheable"]:true);
82 $img = MPhoto::getImageForPhoto($photo);
84 if (is_null($img) || !$img->isValid()) {
85 Logger::log("Invalid photo with id {$photo['id']}.");
86 throw new InternalServerErrorException();
90 // if customsize is set and image is not a gif, resize it
91 if ($img->getType() !== "image/gif" && $customsize > 0 && $customsize < 501) {
92 $img->scaleToSquare($customsize);
96 if (function_exists('header_remove')) {
97 header_remove('Pragma');
98 header_remove('pragma');
101 header("Content-type: " . $img->getType());
104 // it is a private photo that they have no permission to view.
105 // tell the browser not to cache it, in case they authenticate
106 // and subsequently have permission to see it
107 header("Cache-Control: no-store, no-cache, must-revalidate");
109 header("Last-Modified: " . gmdate("D, d M Y H:i:s", time()) . " GMT");
110 header('Etag: "' . md5($img->asString()) . '"');
111 header("Expires: " . gmdate("D, d M Y H:i:s", time() + (31536000)) . " GMT");
112 header("Cache-Control: max-age=31536000");
117 echo $img->asString();
123 private static function stripExtension($name)
125 $name = str_replace([".jpg", ".png", ".gif"], ["", "", ""], $name);
126 foreach (Image::supportedTypes() AS $m => $e) {
127 $name = str_replace('.' . $e, '', $name);
132 private static function getAvatar($uid, $type="avatar")
139 $default = "images/person-300.jpg";
143 $default = "images/person-48.jpg";
148 $default = "images/person-80.jpg";
151 $photo = MPhoto::selectFirst([], ["scale" => $scale, "uid" => $uid, "profile" => 1]);
152 if ($photo===false) {
153 $photo = MPhoto::createPhotoForSystemResource($default);