3 * @file src/Module/Photo.php
6 namespace Friendica\Module;
8 use Friendica\BaseModule;
9 use Friendica\Core\Logger;
10 use Friendica\Core\System;
11 use Friendica\Model\Photo as MPhoto;
12 use Friendica\Object\Image;
17 class Photo extends BaseModule
20 * @brief Module initializer
22 * Fetch a photo or an avatar, in optional size, check for permissions and
25 public static function init()
28 if ($a->argc <= 1 || $a->argc > 4) {
29 System::httpExit(400, "Bad Request");
32 if (isset($_SERVER["HTTP_IF_MODIFIED_SINCE"])) {
33 header("HTTP/1.1 304 Not Modified");
34 header("Last-Modified: " . gmdate("D, d M Y H:i:s", time()) . " GMT");
35 if (!empty($_SERVER["HTTP_IF_NONE_MATCH"])) {
36 header("Etag: " . $_SERVER["HTTP_IF_NONE_MATCH"]);
38 header("Expires: " . gmdate("D, d M Y H:i:s", time() + (31536000)) . " GMT");
39 header("Cache-Control: max-age=31536000");
40 if (function_exists("header_remove")) {
41 header_remove("Last-Modified");
42 header_remove("Expires");
43 header_remove("Cache-Control");
52 $customsize = intval($a->argv[2]);
53 $uid = self::stripExtension($a->argv[3]);
54 $photo = self::getAvatar($uid, $a->argv[1]);
57 $uid = self::stripExtension($a->argv[2]);
58 $photo = self::getAvatar($uid, $a->argv[1]);
61 $photoid = self::stripExtension($a->argv[1]);
63 if (substr($photoid, -2, 1) == "-") {
64 $scale = intval(substr($photoid, -1, 1));
65 $photoid = substr($photoid, 0, -2);
67 $photo = MPhoto::getPhoto($photoid, $scale);
68 if ($photo === false) {
69 $photo = MPhoto::createPhotoForSystemResource("images/nosign.jpg");
74 if ($photo === false) {
75 // not using System::httpExit() because we don't want html here.
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 {$photo["id"]}.");
86 System::httpExit(500, ["description" => "Invalid photo with id {$photo["id"]}."]);
89 // if customsize is set and image is not a gif, resize it
90 if ($img->getType() !== "image/gif" && $customsize > 0 && $customsize < 501) {
91 $img->scaleToSquare($customsize);
94 if (function_exists("header_remove")) {
95 header_remove("Pragma");
96 header_remove("pragma");
99 header("Content-type: " . $img->getType());
102 // it is a private photo that they have no permission to view.
103 // tell the browser not to cache it, in case they authenticate
104 // and subsequently have permission to see it
105 header("Cache-Control: no-store, no-cache, must-revalidate");
107 $md5 = md5($img->asString());
108 header("Last-Modified: " . gmdate("D, d M Y H:i:s", time()) . " GMT");
109 header("Etag: \"{$md5}\"");
110 header("Expires: " . gmdate("D, d M Y H:i:s", time() + (31536000)) . " GMT");
111 header("Cache-Control: max-age=31536000");
114 echo $img->asString();
119 private static function stripExtension($name)
121 $name = str_replace([".jpg", ".png", ".gif"], ["", "", ""], $name);
122 foreach (Image::supportedTypes() as $m => $e) {
123 $name = str_replace("." . $e, "", $name);
128 private static function getAvatar($uid, $type="avatar")
135 $default = "images/person-300.jpg";
139 $default = "images/person-48.jpg";
144 $default = "images/person-80.jpg";
147 $photo = MPhoto::selectFirst([], ["scale" => $scale, "uid" => $uid, "profile" => 1]);
148 if ($photo === false) {
149 $photo = MPhoto::createPhotoForSystemResource($default);