284 lines
9.3 KiB
PHP
284 lines
9.3 KiB
PHP
<?php
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/**
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* @copyright Copyright (C) 2010-2021, the Friendica project
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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namespace Friendica\Module;
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use Friendica\BaseModule;
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use Friendica\Core\Logger;
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use Friendica\Database\DBA;
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use Friendica\DI;
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use Friendica\Model\Contact;
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use Friendica\Model\Photo as MPhoto;
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use Friendica\Model\Post;
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use Friendica\Model\Profile;
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use Friendica\Model\Storage\ExternalResource;
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use Friendica\Model\Storage\SystemResource;
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use Friendica\Util\Proxy;
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use Friendica\Object\Image;
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use Friendica\Util\HTTPSignature;
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use Friendica\Util\Images;
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/**
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* Photo Module
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*/
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class Photo extends BaseModule
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{
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/**
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* Module initializer
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*
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* Fetch a photo or an avatar, in optional size, check for permissions and
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* return the image
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*/
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public static function rawContent(array $parameters = [])
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{
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$totalstamp = microtime(true);
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if (isset($_SERVER["HTTP_IF_MODIFIED_SINCE"])) {
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header("HTTP/1.1 304 Not Modified");
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header("Last-Modified: " . gmdate("D, d M Y H:i:s", time()) . " GMT");
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if (!empty($_SERVER["HTTP_IF_NONE_MATCH"])) {
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header("Etag: " . $_SERVER["HTTP_IF_NONE_MATCH"]);
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}
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header("Expires: " . gmdate("D, d M Y H:i:s", time() + (31536000)) . " GMT");
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header("Cache-Control: max-age=31536000");
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if (function_exists("header_remove")) {
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header_remove("Last-Modified");
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header_remove("Expires");
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header_remove("Cache-Control");
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}
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exit;
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}
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$requester = HTTPSignature::getSigner('', $_SERVER);
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if (!empty($requester)) {
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Profile::addVisitorCookieForHandle($requester);
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}
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$customsize = 0;
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$square_resize = true;
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$photo = false;
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$scale = null;
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$stamp = microtime(true);
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if (!empty($parameters['customsize'])) {
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$customsize = intval($parameters['customsize']);
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$uid = MPhoto::stripExtension($parameters['name']);
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$photo = self::getAvatar($uid, $parameters['type'], $customsize);
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$square_resize = !in_array($parameters['type'], ['media', 'preview']);
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} elseif (!empty($parameters['type'])) {
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$uid = MPhoto::stripExtension($parameters['name']);
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$photo = self::getAvatar($uid, $parameters['type'], Proxy::PIXEL_SMALL);
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} elseif (!empty($parameters['name'])) {
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$photoid = MPhoto::stripExtension($parameters['name']);
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$scale = 0;
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if (substr($photoid, -2, 1) == "-") {
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$scale = intval(substr($photoid, -1, 1));
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$photoid = substr($photoid, 0, -2);
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}
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$photo = MPhoto::getPhoto($photoid, $scale);
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if ($photo === false) {
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throw new \Friendica\Network\HTTPException\NotFoundException(DI::l10n()->t('The Photo with id %s is not available.', $photoid));
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}
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} else {
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throw new \Friendica\Network\HTTPException\BadRequestException();
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}
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$fetch = microtime(true) - $stamp;
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if ($photo === false) {
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throw new \Friendica\Network\HTTPException\NotFoundException();
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}
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$cacheable = ($photo["allow_cid"] . $photo["allow_gid"] . $photo["deny_cid"] . $photo["deny_gid"] === "") && (isset($photo["cacheable"]) ? $photo["cacheable"] : true);
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$stamp = microtime(true);
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$imgdata = MPhoto::getImageDataForPhoto($photo);
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// The mimetype for an external or system resource can only be known reliably after it had been fetched
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if (in_array($photo['backend-class'], [ExternalResource::NAME, SystemResource::NAME])) {
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$mimetype = Images::getMimeTypeByData($imgdata);
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if (!empty($mimetype)) {
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$photo['type'] = $mimetype;
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}
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}
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$data = microtime(true) - $stamp;
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if (empty($imgdata)) {
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Logger::warning("Invalid photo with id {$photo["id"]}.");
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throw new \Friendica\Network\HTTPException\InternalServerErrorException(DI::l10n()->t('Invalid photo with id %s.', $photo["id"]));
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}
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// if customsize is set and image is not a gif, resize it
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if ($photo['type'] !== "image/gif" && $customsize > 0 && $customsize <= Proxy::PIXEL_THUMB && $square_resize) {
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$img = new Image($imgdata, $photo['type']);
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$img->scaleToSquare($customsize);
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$imgdata = $img->asString();
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} elseif ($photo['type'] !== "image/gif" && $customsize > 0) {
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$img = new Image($imgdata, $photo['type']);
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$img->scaleDown($customsize);
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$imgdata = $img->asString();
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}
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if (function_exists("header_remove")) {
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header_remove("Pragma");
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header_remove("pragma");
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}
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header("Content-type: " . $photo['type']);
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$stamp = microtime(true);
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if (!$cacheable) {
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// it is a private photo that they have no permission to view.
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// tell the browser not to cache it, in case they authenticate
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// and subsequently have permission to see it
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header("Cache-Control: no-store, no-cache, must-revalidate");
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} else {
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$md5 = $photo['hash'] ?: md5($imgdata);
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header("Last-Modified: " . gmdate("D, d M Y H:i:s", time()) . " GMT");
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header("Etag: \"{$md5}\"");
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header("Expires: " . gmdate("D, d M Y H:i:s", time() + (31536000)) . " GMT");
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header("Cache-Control: max-age=31536000");
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}
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$checksum = microtime(true) - $stamp;
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$stamp = microtime(true);
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echo $imgdata;
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$output = microtime(true) - $stamp;
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$total = microtime(true) - $totalstamp;
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$rest = $total - ($fetch + $data + $checksum + $output);
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if (!is_null($scale) && ($scale < 4)) {
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Logger::info('Performance:', ['scale' => $scale, 'resource' => $photo['resource-id'],
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'total' => number_format($total, 3), 'fetch' => number_format($fetch, 3),
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'data' => number_format($data, 3), 'checksum' => number_format($checksum, 3),
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'output' => number_format($output, 3), 'rest' => number_format($rest, 3)]);
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}
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exit();
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}
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private static function getAvatar($uid, $type="avatar", $customsize)
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{
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switch($type) {
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case "preview":
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$media = DBA::selectFirst('post-media', ['preview', 'url', 'type', 'uri-id'], ['id' => $uid]);
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if (empty($media)) {
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return false;
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}
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$url = $media['preview'];
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if (empty($url) && ($media['type'] == Post\Media::IMAGE)) {
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$url = $media['url'];
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}
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if (empty($url)) {
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return false;
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}
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return MPhoto::createPhotoForExternalResource($url, (int)local_user());
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case "media":
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$media = DBA::selectFirst('post-media', ['url', 'uri-id'], ['id' => $uid, 'type' => Post\Media::IMAGE]);
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if (empty($media)) {
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return false;
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}
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return MPhoto::createPhotoForExternalResource($media['url'], (int)local_user());
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case "contact":
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$contact = Contact::getById($uid, ['uid', 'url', 'avatar', 'photo', 'xmpp', 'addr']);
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if (empty($contact)) {
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return false;
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}
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If (($contact['uid'] != 0) && empty($contact['photo']) && empty($contact['avatar'])) {
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$contact = Contact::getByURL($contact['url'], false, ['avatar', 'photo', 'xmpp', 'addr']);
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}
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if (!empty($contact['photo'])) {
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// Fetch photo directly
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$resourceid = MPhoto::ridFromURI($contact['photo']);
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if (!empty($resourceid)) {
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$photo = MPhoto::selectFirst([], ['resource-id' => $resourceid], ['order' => ['scale']]);
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if (!empty($photo)) {
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return $photo;
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}
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}
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$url = $contact['photo'];
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} elseif (!empty($contact['avatar'])) {
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$url = $contact['avatar'];
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} elseif ($customsize <= Proxy::PIXEL_MICRO) {
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$url = Contact::getDefaultAvatar($contact, Proxy::SIZE_MICRO);
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} elseif ($customsize <= Proxy::PIXEL_THUMB) {
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$url = Contact::getDefaultAvatar($contact, Proxy::SIZE_THUMB);
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} else {
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$url = Contact::getDefaultAvatar($contact, Proxy::SIZE_SMALL);
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}
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return MPhoto::createPhotoForExternalResource($url);
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case "header":
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$contact = Contact::getById($uid, ['uid', 'url', 'header']);
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if (empty($contact)) {
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return false;
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}
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If (($contact['uid'] != 0) && empty($contact['header'])) {
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$contact = Contact::getByURL($contact['url'], false, ['header']);
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}
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if (!empty($contact['header'])) {
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$url = $contact['header'];
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} else {
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$url = DI::baseUrl() . '/images/blank.png';
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}
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return MPhoto::createPhotoForExternalResource($url);
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case "profile":
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case "custom":
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$scale = 4;
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break;
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case "micro":
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$scale = 6;
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break;
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case "avatar":
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default:
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$scale = 5;
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}
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$photo = MPhoto::selectFirst([], ["scale" => $scale, "uid" => $uid, "profile" => 1]);
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if (empty($photo)) {
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$contact = DBA::selectFirst('contact', [], ['uid' => $uid, 'self' => true]) ?: [];
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switch($type) {
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case "profile":
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case "custom":
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$default = Contact::getDefaultAvatar($contact, Proxy::SIZE_SMALL);
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break;
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case "micro":
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$default = Contact::getDefaultAvatar($contact, Proxy::SIZE_MICRO);
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break;
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case "avatar":
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default:
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$default = Contact::getDefaultAvatar($contact, Proxy::SIZE_THUMB);
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}
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$parts = parse_url($default);
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if (!empty($parts['scheme']) || !empty($parts['host'])) {
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$photo = MPhoto::createPhotoForExternalResource($default);
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} else {
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$photo = MPhoto::createPhotoForSystemResource($default);
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}
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}
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return $photo;
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}
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}
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