src/Module/Photo.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2022, the Friendica project
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   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.
  11  *
  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.
  16  *
  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/>.
  19  *
  20  */
  21
  22 namespace Friendica\Module;
  23
  24 use Friendica\BaseModule;
  25 use Friendica\Core\Logger;
  26 use Friendica\Core\Protocol;
  27 use Friendica\Core\Session;
  28 use Friendica\Database\DBA;
  29 use Friendica\DI;
  30 use Friendica\Model\Contact;
  31 use Friendica\Model\Photo as MPhoto;
  32 use Friendica\Model\Post;
  33 use Friendica\Model\Profile;
  34 use Friendica\Core\Storage\Type\ExternalResource;
  35 use Friendica\Core\Storage\Type\SystemResource;
  36 use Friendica\Core\System;
  37 use Friendica\Core\Worker;
  38 use Friendica\Model\User;
  39 use Friendica\Network\HTTPClient\Client\HttpClientAccept;
  40 use Friendica\Network\HTTPClient\Client\HttpClientOptions;
  41 use Friendica\Network\HTTPException;
  42 use Friendica\Network\HTTPException\NotModifiedException;
  43 use Friendica\Object\Image;
  44 use Friendica\Util\Images;
  45 use Friendica\Util\Network;
  46 use Friendica\Util\ParseUrl;
  47 use Friendica\Util\Proxy;
  48
  49 /**
  50  * Photo Module
  51  */
  52 class Photo extends BaseModule
  53 {
  54         /**
  55          * Module initializer
  56          *
  57          * Fetch a photo or an avatar, in optional size, check for permissions and
  58          * return the image
  59          */
  60         protected function rawContent(array $request = [])
  61         {
  62                 $totalstamp = microtime(true);
  63
  64                 if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
  65                         header('Last-Modified: ' . gmdate('D, d M Y H:i:s', time()) . ' GMT');
  66                         if (!empty($_SERVER['HTTP_IF_NONE_MATCH'])) {
  67                                 header('Etag: ' . $_SERVER['HTTP_IF_NONE_MATCH']);
  68                         }
  69                         header('Expires: ' . gmdate('D, d M Y H:i:s', time() + (31536000)) . ' GMT');
  70                         header('Cache-Control: max-age=31536000');
  71                         if (function_exists('header_remove')) {
  72                                 header_remove('Last-Modified');
  73                                 header_remove('Expires');
  74                                 header_remove('Cache-Control');
  75                         }
  76                         throw new NotModifiedException();
  77                 }
  78
  79                 Profile::addVisitorCookieForHTTPSigner();
  80
  81                 $customsize = 0;
  82                 $square_resize = true;
  83                 $scale = null;
  84                 $stamp = microtime(true);
  85                 // User avatar
  86                 if (!empty($this->parameters['type'])) {
  87                         if (!empty($this->parameters['customsize'])) {
  88                                 $customsize = intval($this->parameters['customsize']);
  89                                 $square_resize = !in_array($this->parameters['type'], ['media', 'preview']);
  90                         }
  91
  92                         if (!empty($this->parameters['guid'])) {
  93                                 $guid = $this->parameters['guid'];
  94                                 $account = DBA::selectFirst('account-user-view', ['id'], ['guid' => $guid], ['order' => ['uid' => true]]);
  95                                 if (empty($account)) {
  96                                         throw new HTTPException\NotFoundException();
  97                                 }
  98
  99                                 $id = $account['id'];
 100                         }
 101
 102                         // Contact Id Fallback, to remove after version 2021.12
 103                         if (isset($this->parameters['contact_id'])) {
 104                                 $id = intval($this->parameters['contact_id']);
 105                         }
 106
 107                         if (!empty($this->parameters['nickname_ext'])) {
 108                                 $nickname = pathinfo($this->parameters['nickname_ext'], PATHINFO_FILENAME);
 109                                 $user = User::getByNickname($nickname, ['uid']);
 110                                 if (empty($user)) {
 111                                         throw new HTTPException\NotFoundException();
 112                                 }
 113
 114                                 $id = $user['uid'];
 115                         }
 116
 117                         // User Id Fallback, to remove after version 2021.12
 118                         if (!empty($this->parameters['uid_ext'])) {
 119                                 $id = intval(pathinfo($this->parameters['uid_ext'], PATHINFO_FILENAME));
 120                         }
 121
 122                         // Please refactor this for the love of everything that's good
 123                         if (isset($this->parameters['id'])) {
 124                                 $id = $this->parameters['id'];
 125                         }
 126
 127                         if (empty($id)) {
 128                                 Logger::notice('No picture id was detected', ['parameters' => $this->parameters, 'query' => DI::args()->getQueryString()]);
 129                                 throw new HTTPException\NotFoundException(DI::l10n()->t('The Photo is not available.'));
 130                         }
 131
 132                         $photo = self::getPhotoById($id, $this->parameters['type'], $customsize ?: Proxy::PIXEL_SMALL);
 133                 } else {
 134                         $photoid = pathinfo($this->parameters['name'], PATHINFO_FILENAME);
 135                         $scale = 0;
 136                         if (substr($photoid, -2, 1) == '-') {
 137                                 $scale = intval(substr($photoid, -1, 1));
 138                                 $photoid = substr($photoid, 0, -2);
 139                         }
 140                         $photo = MPhoto::getPhoto($photoid, $scale);
 141                         if ($photo === false) {
 142                                 throw new HTTPException\NotFoundException(DI::l10n()->t('The Photo with id %s is not available.', $photoid));
 143                         }
 144                 }
 145
 146                 $fetch = microtime(true) - $stamp;
 147
 148                 if ($photo === false) {
 149                         throw new HTTPException\NotFoundException();
 150                 }
 151
 152                 $cacheable = ($photo['allow_cid'] . $photo['allow_gid'] . $photo['deny_cid'] . $photo['deny_gid'] === '') && (isset($photo['cacheable']) ? $photo['cacheable'] : true);
 153
 154                 $stamp = microtime(true);
 155
 156                 $imgdata = MPhoto::getImageDataForPhoto($photo);
 157                 if (empty($imgdata)) {
 158                         throw new HTTPException\NotFoundException();
 159                 }
 160
 161                 // The mimetype for an external or system resource can only be known reliably after it had been fetched
 162                 if (in_array($photo['backend-class'], [ExternalResource::NAME, SystemResource::NAME])) {
 163                         $mimetype = Images::getMimeTypeByData($imgdata);
 164                         if (!empty($mimetype)) {
 165                                 $photo['type'] = $mimetype;
 166                         }
 167                 }
 168
 169                 $data = microtime(true) - $stamp;
 170
 171                 if (empty($imgdata)) {
 172                         Logger::warning('Invalid photo', ['id' => $photo['id']]);
 173                         if (in_array($photo['backend-class'], [ExternalResource::NAME])) {
 174                                 $reference = json_decode($photo['backend-ref'], true);
 175                                 $error = DI::l10n()->t('Invalid external resource with url %s.', $reference['url']);
 176                         } else {
 177                                 $error = DI::l10n()->t('Invalid photo with id %s.', $photo['id']);
 178                         }
 179                         throw new HTTPException\InternalServerErrorException($error);
 180                 }
 181
 182                 // if customsize is set and image is not a gif, resize it
 183                 if ($photo['type'] !== 'image/gif' && $customsize > 0 && $customsize <= Proxy::PIXEL_THUMB && $square_resize) {
 184                         $img = new Image($imgdata, $photo['type']);
 185                         $img->scaleToSquare($customsize);
 186                         $imgdata = $img->asString();
 187                 } elseif ($photo['type'] !== 'image/gif' && $customsize > 0) {
 188                         $img = new Image($imgdata, $photo['type']);
 189                         $img->scaleDown($customsize);
 190                         $imgdata = $img->asString();
 191                 }
 192
 193                 if (function_exists('header_remove')) {
 194                         header_remove('Pragma');
 195                         header_remove('pragma');
 196                 }
 197
 198                 header('Content-type: ' . $photo['type']);
 199
 200                 $stamp = microtime(true);
 201                 if (!$cacheable) {
 202                         // it is a private photo that they have no permission to view.
 203                         // tell the browser not to cache it, in case they authenticate
 204                         // and subsequently have permission to see it
 205                         header('Cache-Control: no-store, no-cache, must-revalidate');
 206                 } else {
 207                         $md5 = $photo['hash'] ?: md5($imgdata);
 208                         header('Last-Modified: ' . gmdate('D, d M Y H:i:s', time()) . ' GMT');
 209                         header("Etag: \"{$md5}\"");
 210                         header('Expires: ' . gmdate('D, d M Y H:i:s', time() + (31536000)) . ' GMT');
 211                         header('Cache-Control: max-age=31536000');
 212                 }
 213                 $checksum = microtime(true) - $stamp;
 214
 215                 $stamp = microtime(true);
 216                 echo $imgdata;
 217                 $output = microtime(true) - $stamp;
 218
 219                 $total = microtime(true) - $totalstamp;
 220                 $rest = $total - ($fetch + $data + $checksum + $output);
 221
 222                 if (!is_null($scale) && ($scale < 4)) {
 223                         Logger::debug('Performance:', ['scale' => $scale, 'resource' => $photo['resource-id'],
 224                                 'total' => number_format($total, 3), 'fetch' => number_format($fetch, 3),
 225                                 'data' => number_format($data, 3), 'checksum' => number_format($checksum, 3),
 226                                 'output' => number_format($output, 3), 'rest' => number_format($rest, 3)]);
 227                 }
 228
 229                 System::exit();
 230         }
 231
 232         /**
 233          * Fetches photo record by given id number, type and custom size
 234          *
 235          * @param int $id Photo id
 236          * @param string $type Photo type
 237          * @param int $customsize Custom size (?)
 238          * @return array|bool Array on success, false on error
 239          */
 240         private static function getPhotoById(int $id, string $type, int $customsize)
 241         {
 242                 switch($type) {
 243                         case 'preview':
 244                                 $media = DBA::selectFirst('post-media', ['preview', 'url', 'mimetype', 'type', 'uri-id'], ['id' => $id]);
 245                                 if (empty($media)) {
 246                                         return false;
 247                                 }
 248                                 $url = $media['preview'];
 249
 250                                 if (empty($url) && ($media['type'] == Post\Media::IMAGE)) {
 251                                         $url = $media['url'];
 252                                 }
 253
 254                                 if (empty($url)) {
 255                                         return false;
 256                                 }
 257
 258                                 if (Network::isLocalLink($url) && preg_match('|.*?/photo/(.*[a-fA-F0-9])\-(.*[0-9])\..*[\w]|', $url, $matches)) {
 259                                         return MPhoto::getPhoto($matches[1], $matches[2]);
 260                                 }
 261
 262                                 return MPhoto::createPhotoForExternalResource($url, (int)Session::getLocalUser(), $media['mimetype'] ?? '');
 263                         case 'media':
 264                                 $media = DBA::selectFirst('post-media', ['url', 'mimetype', 'uri-id'], ['id' => $id, 'type' => Post\Media::IMAGE]);
 265                                 if (empty($media)) {
 266                                         return false;
 267                                 }
 268
 269                                 if (Network::isLocalLink($media['url']) && preg_match('|.*?/photo/(.*[a-fA-F0-9])\-(.*[0-9])\..*[\w]|', $media['url'], $matches)) {
 270                                         return MPhoto::getPhoto($matches[1], $matches[2]);
 271                                 }
 272
 273                                 return MPhoto::createPhotoForExternalResource($media['url'], (int)Session::getLocalUser(), $media['mimetype']);
 274                         case 'link':
 275                                 $link = DBA::selectFirst('post-link', ['url', 'mimetype'], ['id' => $id]);
 276                                 if (empty($link)) {
 277                                         return false;
 278                                 }
 279
 280                                 return MPhoto::createPhotoForExternalResource($link['url'], (int)Session::getLocalUser(), $link['mimetype'] ?? '');
 281                         case 'contact':
 282                                 $fields = ['uid', 'uri-id', 'url', 'nurl', 'avatar', 'photo', 'xmpp', 'addr', 'network', 'failed', 'updated'];
 283                                 $contact = Contact::getById($id, $fields);
 284                                 if (empty($contact)) {
 285                                         return false;
 286                                 }
 287
 288                                 // For local users directly use the photo record that is marked as the profile
 289                                 if (Network::isLocalLink($contact['url'])) {
 290                                         $contact = Contact::selectFirst($fields, ['nurl' => $contact['nurl'], 'self' => true]);
 291                                         if (!empty($contact)) {
 292                                                 if ($customsize <= Proxy::PIXEL_MICRO) {
 293                                                         $scale = 6;
 294                                                 } elseif ($customsize <= Proxy::PIXEL_THUMB) {
 295                                                         $scale = 5;
 296                                                 } else {
 297                                                         $scale = 4;
 298                                                 }
 299                                                 $photo = MPhoto::selectFirst([], ['scale' => $scale, 'uid' => $contact['uid'], 'profile' => 1]);
 300                                                 if (!empty($photo)) {
 301                                                         return $photo;
 302                                                 }
 303                                         }
 304                                 }
 305
 306                                 if (!empty($contact['uid']) && empty($contact['photo']) && empty($contact['avatar'])) {
 307                                         $contact = Contact::getByURL($contact['url'], false, $fields);
 308                                 }
 309
 310                                 if (!empty($contact['photo']) && !empty($contact['avatar'])) {
 311                                         // Fetch photo directly
 312                                         $resourceid = MPhoto::ridFromURI($contact['photo']);
 313                                         if (!empty($resourceid)) {
 314                                                 $photo = MPhoto::selectFirst([], ['resource-id' => $resourceid], ['order' => ['scale']]);
 315                                                 if (!empty($photo)) {
 316                                                         return $photo;
 317                                                 } else {
 318                                                         $url = $contact['avatar'];
 319                                                 }
 320                                         } else {
 321                                                 $url = $contact['photo'];
 322                                         }
 323                                 } elseif (!empty($contact['avatar'])) {
 324                                         $url = $contact['avatar'];
 325                                 }
 326                                 $mimetext = '';
 327                                 if (!empty($url)) {
 328                                         $mime = ParseUrl::getContentType($url, HttpClientAccept::IMAGE);
 329                                         if (!empty($mime)) {
 330                                                 $mimetext = $mime[0] . '/' . $mime[1];
 331                                         } else {
 332                                                 // Only update federated accounts that hadn't failed before and hadn't been updated recently
 333                                                 $update = in_array($contact['network'], Protocol::FEDERATED) && !$contact['failed']
 334                                                         && ((time() - strtotime($contact['updated']) > 86400));
 335                                                 if ($update) {
 336                                                         $curlResult = DI::httpClient()->head($url, [HttpClientOptions::ACCEPT_CONTENT => HttpClientAccept::IMAGE]);
 337                                                         $update = !$curlResult->isSuccess() && ($curlResult->getReturnCode() == 404);
 338                                                         Logger::debug('Got return code for avatar', ['return code' => $curlResult->getReturnCode(), 'cid' => $id, 'url' => $contact['url'], 'avatar' => $url]);
 339                                                 }
 340                                                 if ($update) {
 341                                                         Logger::info('Invalid file, contact update initiated', ['cid' => $id, 'url' => $contact['url'], 'avatar' => $url]);
 342                                                         Worker::add(Worker::PRIORITY_LOW, 'UpdateContact', $id);
 343                                                 } else {
 344                                                         Logger::info('Invalid file', ['cid' => $id, 'url' => $contact['url'], 'avatar' => $url]);
 345                                                 }
 346                                         }
 347                                         if (!empty($mimetext) && ($mime[0] != 'image') && ($mimetext != 'application/octet-stream')) {
 348                                                 Logger::info('Unexpected Content-Type', ['mime' => $mimetext, 'url' => $url]);
 349                                                 $mimetext = '';
 350                                         } if (!empty($mimetext)) {
 351                                                 Logger::debug('Expected Content-Type', ['mime' => $mimetext, 'url' => $url]);
 352                                         }
 353                                 }
 354                                 if (empty($mimetext)) {
 355                                         if ($customsize <= Proxy::PIXEL_MICRO) {
 356                                                 $url = Contact::getDefaultAvatar($contact ?: [], Proxy::SIZE_MICRO);
 357                                         } elseif ($customsize <= Proxy::PIXEL_THUMB) {
 358                                                 $url = Contact::getDefaultAvatar($contact ?: [], Proxy::SIZE_THUMB);
 359                                         } else {
 360                                                 $url = Contact::getDefaultAvatar($contact ?: [], Proxy::SIZE_SMALL);
 361                                         }
 362                                 }
 363                                 return MPhoto::createPhotoForExternalResource($url, 0, $mimetext);
 364                         case 'header':
 365                                 $fields = ['uid', 'url', 'header', 'network', 'gsid'];
 366                                 $contact = Contact::getById($id, $fields);
 367                                 if (empty($contact)) {
 368                                         return false;
 369                                 }
 370                                 If (($contact['uid'] != 0) && empty($contact['header'])) {
 371                                         $contact = Contact::getByURL($contact['url'], false, $fields);
 372                                 }
 373                                 if (!empty($contact['header'])) {
 374                                         $url = $contact['header'];
 375                                 } else {
 376                                         $url = Contact::getDefaultHeader($contact);
 377                                 }
 378                                 return MPhoto::createPhotoForExternalResource($url);
 379                         case 'banner':
 380                                 $photo = MPhoto::selectFirst([], ['scale' => 3, 'uid' => $id, 'photo-type' => MPhoto::USER_BANNER]);
 381                                 if (!empty($photo)) {
 382                                         return $photo;
 383                                 }
 384                                 return MPhoto::createPhotoForExternalResource(DI::baseUrl() . '/images/friendica-banner.jpg');
 385                         case 'profile':
 386                         case 'custom':
 387                                 $scale = 4;
 388                                 break;
 389                         case 'micro':
 390                                 $scale = 6;
 391                                 break;
 392                         case 'avatar':
 393                         default:
 394                                 $scale = 5;
 395                 }
 396
 397                 $photo = MPhoto::selectFirst([], ['scale' => $scale, 'uid' => $id, 'profile' => 1]);
 398                 if (empty($photo)) {
 399                         $contact = DBA::selectFirst('contact', [], ['uid' => $id, 'self' => true]) ?: [];
 400
 401                         switch($type) {
 402                                 case 'profile':
 403                                 case 'custom':
 404                                         $default = Contact::getDefaultAvatar($contact, Proxy::SIZE_SMALL);
 405                                         break;
 406                                 case 'micro':
 407                                         $default = Contact::getDefaultAvatar($contact, Proxy::SIZE_MICRO);
 408                                         break;
 409                                 case 'avatar':
 410                                 default:
 411                                         $default = Contact::getDefaultAvatar($contact, Proxy::SIZE_THUMB);
 412                         }
 413
 414                         $parts = parse_url($default);
 415                         if (!empty($parts['scheme']) || !empty($parts['host'])) {
 416                                 $photo = MPhoto::createPhotoForExternalResource($default);
 417                         } else {
 418                                 $photo = MPhoto::createPhotoForSystemResource($default);
 419                         }
 420                 }
 421                 return $photo;
 422         }
 423 }