friendica/src/Module/Photo.php
2022-08-31 05:01:22 +00:00

422 lines
14 KiB
PHP

<?php
/**
* @copyright Copyright (C) 2010-2022, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
* This program 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.
*
* This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\Module;
use Friendica\BaseModule;
use Friendica\Core\Logger;
use Friendica\Core\Protocol;
use Friendica\Database\DBA;
use Friendica\DI;
use Friendica\Model\Contact;
use Friendica\Model\Photo as MPhoto;
use Friendica\Model\Post;
use Friendica\Model\Profile;
use Friendica\Core\Storage\Type\ExternalResource;
use Friendica\Core\Storage\Type\SystemResource;
use Friendica\Core\System;
use Friendica\Core\Worker;
use Friendica\Model\User;
use Friendica\Network\HTTPClient\Client\HttpClientAccept;
use Friendica\Network\HTTPClient\Client\HttpClientOptions;
use Friendica\Network\HTTPException;
use Friendica\Network\HTTPException\NotModifiedException;
use Friendica\Object\Image;
use Friendica\Util\Images;
use Friendica\Util\Network;
use Friendica\Util\ParseUrl;
use Friendica\Util\Proxy;
/**
* Photo Module
*/
class Photo extends BaseModule
{
/**
* Module initializer
*
* Fetch a photo or an avatar, in optional size, check for permissions and
* return the image
*/
protected function rawContent(array $request = [])
{
$totalstamp = microtime(true);
if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
header('Last-Modified: ' . gmdate('D, d M Y H:i:s', time()) . ' GMT');
if (!empty($_SERVER['HTTP_IF_NONE_MATCH'])) {
header('Etag: ' . $_SERVER['HTTP_IF_NONE_MATCH']);
}
header('Expires: ' . gmdate('D, d M Y H:i:s', time() + (31536000)) . ' GMT');
header('Cache-Control: max-age=31536000');
if (function_exists('header_remove')) {
header_remove('Last-Modified');
header_remove('Expires');
header_remove('Cache-Control');
}
throw new NotModifiedException();
}
Profile::addVisitorCookieForHTTPSigner();
$customsize = 0;
$square_resize = true;
$scale = null;
$stamp = microtime(true);
// User avatar
if (!empty($this->parameters['type'])) {
if (!empty($this->parameters['customsize'])) {
$customsize = intval($this->parameters['customsize']);
$square_resize = !in_array($this->parameters['type'], ['media', 'preview']);
}
if (!empty($this->parameters['guid'])) {
$guid = $this->parameters['guid'];
$account = DBA::selectFirst('account-user-view', ['id'], ['guid' => $guid], ['order' => ['uid' => true]]);
if (empty($account)) {
throw new HTTPException\NotFoundException();
}
$id = $account['id'];
}
// Contact Id Fallback, to remove after version 2021.12
if (isset($this->parameters['contact_id'])) {
$id = intval($this->parameters['contact_id']);
}
if (!empty($this->parameters['nickname_ext'])) {
$nickname = pathinfo($this->parameters['nickname_ext'], PATHINFO_FILENAME);
$user = User::getByNickname($nickname, ['uid']);
if (empty($user)) {
throw new HTTPException\NotFoundException();
}
$id = $user['uid'];
}
// User Id Fallback, to remove after version 2021.12
if (!empty($this->parameters['uid_ext'])) {
$id = intval(pathinfo($this->parameters['uid_ext'], PATHINFO_FILENAME));
}
// Please refactor this for the love of everything that's good
if (isset($this->parameters['id'])) {
$id = $this->parameters['id'];
}
if (empty($id)) {
Logger::notice('No picture id was detected', ['parameters' => $this->parameters, 'query' => DI::args()->getQueryString()]);
throw new HTTPException\NotFoundException(DI::l10n()->t('The Photo is not available.'));
}
$photo = self::getPhotoById($id, $this->parameters['type'], $customsize ?: Proxy::PIXEL_SMALL);
} else {
$photoid = pathinfo($this->parameters['name'], PATHINFO_FILENAME);
$scale = 0;
if (substr($photoid, -2, 1) == '-') {
$scale = intval(substr($photoid, -1, 1));
$photoid = substr($photoid, 0, -2);
}
$photo = MPhoto::getPhoto($photoid, $scale);
if ($photo === false) {
throw new HTTPException\NotFoundException(DI::l10n()->t('The Photo with id %s is not available.', $photoid));
}
}
$fetch = microtime(true) - $stamp;
if ($photo === false) {
throw new HTTPException\NotFoundException();
}
$cacheable = ($photo['allow_cid'] . $photo['allow_gid'] . $photo['deny_cid'] . $photo['deny_gid'] === '') && (isset($photo['cacheable']) ? $photo['cacheable'] : true);
$stamp = microtime(true);
$imgdata = MPhoto::getImageDataForPhoto($photo);
if (empty($imgdata)) {
throw new HTTPException\NotFoundException();
}
// The mimetype for an external or system resource can only be known reliably after it had been fetched
if (in_array($photo['backend-class'], [ExternalResource::NAME, SystemResource::NAME])) {
$mimetype = Images::getMimeTypeByData($imgdata);
if (!empty($mimetype)) {
$photo['type'] = $mimetype;
}
}
$data = microtime(true) - $stamp;
if (empty($imgdata)) {
Logger::warning('Invalid photo', ['id' => $photo['id']]);
if (in_array($photo['backend-class'], [ExternalResource::NAME])) {
$reference = json_decode($photo['backend-ref'], true);
$error = DI::l10n()->t('Invalid external resource with url %s.', $reference['url']);
} else {
$error = DI::l10n()->t('Invalid photo with id %s.', $photo['id']);
}
throw new HTTPException\InternalServerErrorException($error);
}
// if customsize is set and image is not a gif, resize it
if ($photo['type'] !== 'image/gif' && $customsize > 0 && $customsize <= Proxy::PIXEL_THUMB && $square_resize) {
$img = new Image($imgdata, $photo['type']);
$img->scaleToSquare($customsize);
$imgdata = $img->asString();
} elseif ($photo['type'] !== 'image/gif' && $customsize > 0) {
$img = new Image($imgdata, $photo['type']);
$img->scaleDown($customsize);
$imgdata = $img->asString();
}
if (function_exists('header_remove')) {
header_remove('Pragma');
header_remove('pragma');
}
header('Content-type: ' . $photo['type']);
$stamp = microtime(true);
if (!$cacheable) {
// it is a private photo that they have no permission to view.
// tell the browser not to cache it, in case they authenticate
// and subsequently have permission to see it
header('Cache-Control: no-store, no-cache, must-revalidate');
} else {
$md5 = $photo['hash'] ?: md5($imgdata);
header('Last-Modified: ' . gmdate('D, d M Y H:i:s', time()) . ' GMT');
header("Etag: \"{$md5}\"");
header('Expires: ' . gmdate('D, d M Y H:i:s', time() + (31536000)) . ' GMT');
header('Cache-Control: max-age=31536000');
}
$checksum = microtime(true) - $stamp;
$stamp = microtime(true);
echo $imgdata;
$output = microtime(true) - $stamp;
$total = microtime(true) - $totalstamp;
$rest = $total - ($fetch + $data + $checksum + $output);
if (!is_null($scale) && ($scale < 4)) {
Logger::debug('Performance:', ['scale' => $scale, 'resource' => $photo['resource-id'],
'total' => number_format($total, 3), 'fetch' => number_format($fetch, 3),
'data' => number_format($data, 3), 'checksum' => number_format($checksum, 3),
'output' => number_format($output, 3), 'rest' => number_format($rest, 3)]);
}
System::exit();
}
/**
* Fetches photo record by given id number, type and custom size
*
* @param int $id Photo id
* @param string $type Photo type
* @param int $customsize Custom size (?)
* @return array|bool Array on success, false on error
*/
private static function getPhotoById(int $id, string $type, int $customsize)
{
switch($type) {
case 'preview':
$media = DBA::selectFirst('post-media', ['preview', 'url', 'mimetype', 'type', 'uri-id'], ['id' => $id]);
if (empty($media)) {
return false;
}
$url = $media['preview'];
if (empty($url) && ($media['type'] == Post\Media::IMAGE)) {
$url = $media['url'];
}
if (empty($url)) {
return false;
}
if (Network::isLocalLink($url) && preg_match('|.*?/photo/(.*[a-fA-F0-9])\-(.*[0-9])\..*[\w]|', $url, $matches)) {
return MPhoto::getPhoto($matches[1], $matches[2]);
}
return MPhoto::createPhotoForExternalResource($url, (int)local_user(), $media['mimetype'] ?? '');
case 'media':
$media = DBA::selectFirst('post-media', ['url', 'mimetype', 'uri-id'], ['id' => $id, 'type' => Post\Media::IMAGE]);
if (empty($media)) {
return false;
}
if (Network::isLocalLink($media['url']) && preg_match('|.*?/photo/(.*[a-fA-F0-9])\-(.*[0-9])\..*[\w]|', $media['url'], $matches)) {
return MPhoto::getPhoto($matches[1], $matches[2]);
}
return MPhoto::createPhotoForExternalResource($media['url'], (int)local_user(), $media['mimetype']);
case 'link':
$link = DBA::selectFirst('post-link', ['url', 'mimetype'], ['id' => $id]);
if (empty($link)) {
return false;
}
return MPhoto::createPhotoForExternalResource($link['url'], (int)local_user(), $link['mimetype'] ?? '');
case 'contact':
$fields = ['uid', 'uri-id', 'url', 'nurl', 'avatar', 'photo', 'xmpp', 'addr', 'network', 'failed', 'updated'];
$contact = Contact::getById($id, $fields);
if (empty($contact)) {
return false;
}
// For local users directly use the photo record that is marked as the profile
if (Network::isLocalLink($contact['url'])) {
$contact = Contact::selectFirst($fields, ['nurl' => $contact['nurl'], 'self' => true]);
if (!empty($contact)) {
if ($customsize <= Proxy::PIXEL_MICRO) {
$scale = 6;
} elseif ($customsize <= Proxy::PIXEL_THUMB) {
$scale = 5;
} else {
$scale = 4;
}
$photo = MPhoto::selectFirst([], ['scale' => $scale, 'uid' => $contact['uid'], 'profile' => 1]);
if (!empty($photo)) {
return $photo;
}
}
}
if (!empty($contact['uid']) && empty($contact['photo']) && empty($contact['avatar'])) {
$contact = Contact::getByURL($contact['url'], false, $fields);
}
if (!empty($contact['photo']) && !empty($contact['avatar'])) {
// Fetch photo directly
$resourceid = MPhoto::ridFromURI($contact['photo']);
if (!empty($resourceid)) {
$photo = MPhoto::selectFirst([], ['resource-id' => $resourceid], ['order' => ['scale']]);
if (!empty($photo)) {
return $photo;
} else {
$url = $contact['avatar'];
}
} else {
$url = $contact['photo'];
}
} elseif (!empty($contact['avatar'])) {
$url = $contact['avatar'];
}
$mimetext = '';
if (!empty($url)) {
$mime = ParseUrl::getContentType($url, HttpClientAccept::IMAGE);
if (!empty($mime)) {
$mimetext = $mime[0] . '/' . $mime[1];
} else {
// Only update federated accounts that hadn't failed before and hadn't been updated recently
$update = in_array($contact['network'], Protocol::FEDERATED) && !$contact['failed']
&& ((time() - strtotime($contact['updated']) > 86400));
if ($update) {
$curlResult = DI::httpClient()->head($url, [HttpClientOptions::ACCEPT_CONTENT => HttpClientAccept::IMAGE]);
$update = !$curlResult->isSuccess() && ($curlResult->getReturnCode() == 404);
Logger::debug('Got return code for avatar', ['return code' => $curlResult->getReturnCode(), 'cid' => $id, 'url' => $contact['url'], 'avatar' => $url]);
}
if ($update) {
Logger::info('Invalid file, contact update initiated', ['cid' => $id, 'url' => $contact['url'], 'avatar' => $url]);
Worker::add(PRIORITY_LOW, 'UpdateContact', $id);
} else {
Logger::info('Invalid file', ['cid' => $id, 'url' => $contact['url'], 'avatar' => $url]);
}
}
if (!empty($mimetext) && ($mime[0] != 'image') && ($mimetext != 'application/octet-stream')) {
Logger::info('Unexpected Content-Type', ['mime' => $mimetext, 'url' => $url]);
$mimetext = '';
} if (!empty($mimetext)) {
Logger::debug('Expected Content-Type', ['mime' => $mimetext, 'url' => $url]);
}
}
if (empty($mimetext)) {
if ($customsize <= Proxy::PIXEL_MICRO) {
$url = Contact::getDefaultAvatar($contact ?: [], Proxy::SIZE_MICRO);
} elseif ($customsize <= Proxy::PIXEL_THUMB) {
$url = Contact::getDefaultAvatar($contact ?: [], Proxy::SIZE_THUMB);
} else {
$url = Contact::getDefaultAvatar($contact ?: [], Proxy::SIZE_SMALL);
}
}
return MPhoto::createPhotoForExternalResource($url, 0, $mimetext);
case 'header':
$fields = ['uid', 'url', 'header', 'network', 'gsid'];
$contact = Contact::getById($id, $fields);
if (empty($contact)) {
return false;
}
If (($contact['uid'] != 0) && empty($contact['header'])) {
$contact = Contact::getByURL($contact['url'], false, $fields);
}
if (!empty($contact['header'])) {
$url = $contact['header'];
} else {
$url = Contact::getDefaultHeader($contact);
}
return MPhoto::createPhotoForExternalResource($url);
case 'banner':
$photo = MPhoto::selectFirst([], ['scale' => 3, 'uid' => $id, 'photo-type' => MPhoto::USER_BANNER]);
if (!empty($photo)) {
return $photo;
}
return MPhoto::createPhotoForExternalResource(DI::baseUrl() . '/images/friendica-banner.jpg');
case 'profile':
case 'custom':
$scale = 4;
break;
case 'micro':
$scale = 6;
break;
case 'avatar':
default:
$scale = 5;
}
$photo = MPhoto::selectFirst([], ['scale' => $scale, 'uid' => $id, 'profile' => 1]);
if (empty($photo)) {
$contact = DBA::selectFirst('contact', [], ['uid' => $id, 'self' => true]) ?: [];
switch($type) {
case 'profile':
case 'custom':
$default = Contact::getDefaultAvatar($contact, Proxy::SIZE_SMALL);
break;
case 'micro':
$default = Contact::getDefaultAvatar($contact, Proxy::SIZE_MICRO);
break;
case 'avatar':
default:
$default = Contact::getDefaultAvatar($contact, Proxy::SIZE_THUMB);
}
$parts = parse_url($default);
if (!empty($parts['scheme']) || !empty($parts['host'])) {
$photo = MPhoto::createPhotoForExternalResource($default);
} else {
$photo = MPhoto::createPhotoForSystemResource($default);
}
}
return $photo;
}
}