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\Database\DBA;
  28 use Friendica\DI;
  29 use Friendica\Model\Contact;
  30 use Friendica\Model\Photo as MPhoto;
  31 use Friendica\Model\Post;
  32 use Friendica\Model\Profile;
  33 use Friendica\Core\Storage\Type\ExternalResource;
  34 use Friendica\Core\Storage\Type\SystemResource;
  35 use Friendica\Core\System;
  36 use Friendica\Core\Worker;
  37 use Friendica\Model\User;
  38 use Friendica\Network\HTTPClient\Client\HttpClientAccept;
  39 use Friendica\Network\HTTPClient\Client\HttpClientOptions;
  40 use Friendica\Network\HTTPException;
  41 use Friendica\Network\HTTPException\NotModifiedException;
  42 use Friendica\Object\Image;
  43 use Friendica\Util\Images;
  44 use Friendica\Util\Network;
  45 use Friendica\Util\ParseUrl;
  46 use Friendica\Util\Proxy;
  47
  48 /**
  49  * Photo Module
  50  */
  51 class Photo extends BaseModule
  52 {
  53         /**
  54          * Module initializer
  55          *
  56          * Fetch a photo or an avatar, in optional size, check for permissions and
  57          * return the image
  58          */
  59         protected function rawContent(array $request = [])
  60         {
  61                 $totalstamp = microtime(true);
  62
  63                 if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
  64                         header('Last-Modified: ' . gmdate('D, d M Y H:i:s', time()) . ' GMT');
  65                         if (!empty($_SERVER['HTTP_IF_NONE_MATCH'])) {
  66                                 header('Etag: ' . $_SERVER['HTTP_IF_NONE_MATCH']);
  67                         }
  68                         header('Expires: ' . gmdate('D, d M Y H:i:s', time() + (31536000)) . ' GMT');
  69                         header('Cache-Control: max-age=31536000');
  70                         if (function_exists('header_remove')) {
  71                                 header_remove('Last-Modified');
  72                                 header_remove('Expires');
  73                                 header_remove('Cache-Control');
  74                         }
  75                         throw new NotModifiedException();
  76                 }
  77
  78                 Profile::addVisitorCookieForHTTPSigner();
  79
  80                 $customsize = 0;
  81                 $square_resize = true;
  82                 $scale = null;
  83                 $stamp = microtime(true);
  84                 // User avatar
  85                 if (!empty($this->parameters['type'])) {
  86                         if (!empty($this->parameters['customsize'])) {
  87                                 $customsize = intval($this->parameters['customsize']);
  88                                 $square_resize = !in_array($this->parameters['type'], ['media', 'preview']);
  89                         }
  90
  91                         if (!empty($this->parameters['guid'])) {
  92                                 $guid = $this->parameters['guid'];
  93                                 $account = DBA::selectFirst('account-user-view', ['id'], ['guid' => $guid], ['order' => ['uid' => true]]);
  94                                 if (empty($account)) {
  95                                         throw new HTTPException\NotFoundException();
  96                                 }
  97
  98                                 $id = $account['id'];
  99                         }
 100
 101                         // Contact Id Fallback, to remove after version 2021.12
 102                         if (isset($this->parameters['contact_id'])) {
 103                                 $id = intval($this->parameters['contact_id']);
 104                         }
 105
 106                         if (!empty($this->parameters['nickname_ext'])) {
 107                                 $nickname = pathinfo($this->parameters['nickname_ext'], PATHINFO_FILENAME);
 108                                 $user = User::getByNickname($nickname, ['uid']);
 109                                 if (empty($user)) {
 110                                         throw new HTTPException\NotFoundException();
 111                                 }
 112
 113                                 $id = $user['uid'];
 114                         }
 115
 116                         // User Id Fallback, to remove after version 2021.12
 117                         if (!empty($this->parameters['uid_ext'])) {
 118                                 $id = intval(pathinfo($this->parameters['uid_ext'], PATHINFO_FILENAME));
 119                         }
 120
 121                         // Please refactor this for the love of everything that's good
 122                         if (isset($this->parameters['id'])) {
 123                                 $id = $this->parameters['id'];
 124                         }
 125
 126                         if (empty($id)) {
 127                                 Logger::notice('No picture id was detected', ['parameters' => $this->parameters, 'query' => DI::args()->getQueryString()]);
 128                                 throw new HTTPException\NotFoundException(DI::l10n()->t('The Photo is not available.'));
 129                         }
 130
 131                         $photo = self::getPhotoById($id, $this->parameters['type'], $customsize ?: Proxy::PIXEL_SMALL);
 132                 } else {
 133                         $photoid = pathinfo($this->parameters['name'], PATHINFO_FILENAME);
 134                         $scale = 0;
 135                         if (substr($photoid, -2, 1) == '-') {
 136                                 $scale = intval(substr($photoid, -1, 1));
 137                                 $photoid = substr($photoid, 0, -2);
 138                         }
 139                         $photo = MPhoto::getPhoto($photoid, $scale);
 140                         if ($photo === false) {
 141                                 throw new HTTPException\NotFoundException(DI::l10n()->t('The Photo with id %s is not available.', $photoid));
 142                         }
 143                 }
 144
 145                 $fetch = microtime(true) - $stamp;
 146
 147                 if ($photo === false) {
 148                         throw new HTTPException\NotFoundException();
 149                 }
 150
 151                 $cacheable = ($photo['allow_cid'] . $photo['allow_gid'] . $photo['deny_cid'] . $photo['deny_gid'] === '') && (isset($photo['cacheable']) ? $photo['cacheable'] : true);
 152
 153                 $stamp = microtime(true);
 154
 155                 $imgdata = MPhoto::getImageDataForPhoto($photo);
 156                 if (empty($imgdata) && empty($photo['blurhash'])) {
 157                         throw new HTTPException\NotFoundException();
 158                 } elseif (empty($imgdata) && !empty($photo['blurhash'])) {
 159                         $image = New Image('', 'image/png');
 160                         $image->getFromBlurHash($photo['blurhash'], $photo['width'], $photo['height']);
 161                         $imgdata = $image->asString();
 162                 }
 163
 164                 // The mimetype for an external or system resource can only be known reliably after it had been fetched
 165                 if (in_array($photo['backend-class'], [ExternalResource::NAME, SystemResource::NAME])) {
 166                         $mimetype = Images::getMimeTypeByData($imgdata);
 167                         if (!empty($mimetype)) {
 168                                 $photo['type'] = $mimetype;
 169                         }
 170                 }
 171
 172                 $data = microtime(true) - $stamp;
 173
 174                 if (empty($imgdata)) {
 175                         Logger::warning('Invalid photo', ['id' => $photo['id']]);
 176                         if (in_array($photo['backend-class'], [ExternalResource::NAME])) {
 177                                 $reference = json_decode($photo['backend-ref'], true);
 178                                 $error = DI::l10n()->t('Invalid external resource with url %s.', $reference['url']);
 179                         } else {
 180                                 $error = DI::l10n()->t('Invalid photo with id %s.', $photo['id']);
 181                         }
 182                         throw new HTTPException\InternalServerErrorException($error);
 183                 }
 184
 185                 // if customsize is set and image is not a gif, resize it
 186                 if ($photo['type'] !== 'image/gif' && $customsize > 0 && $customsize <= Proxy::PIXEL_THUMB && $square_resize) {
 187                         $img = new Image($imgdata, $photo['type']);
 188                         $img->scaleToSquare($customsize);
 189                         $imgdata = $img->asString();
 190                 } elseif ($photo['type'] !== 'image/gif' && $customsize > 0) {
 191                         $img = new Image($imgdata, $photo['type']);
 192                         $img->scaleDown($customsize);
 193                         $imgdata = $img->asString();
 194                 }
 195
 196                 if (function_exists('header_remove')) {
 197                         header_remove('Pragma');
 198                         header_remove('pragma');
 199                 }
 200
 201                 header('Content-type: ' . $photo['type']);
 202
 203                 $stamp = microtime(true);
 204                 if (!$cacheable) {
 205                         // it is a private photo that they have no permission to view.
 206                         // tell the browser not to cache it, in case they authenticate
 207                         // and subsequently have permission to see it
 208                         header('Cache-Control: no-store, no-cache, must-revalidate');
 209                 } else {
 210                         $md5 = $photo['hash'] ?: md5($imgdata);
 211                         header('Last-Modified: ' . gmdate('D, d M Y H:i:s', time()) . ' GMT');
 212                         header("Etag: \"{$md5}\"");
 213                         header('Expires: ' . gmdate('D, d M Y H:i:s', time() + (31536000)) . ' GMT');
 214                         header('Cache-Control: max-age=31536000');
 215                 }
 216                 $checksum = microtime(true) - $stamp;
 217
 218                 $stamp = microtime(true);
 219                 echo $imgdata;
 220                 $output = microtime(true) - $stamp;
 221
 222                 $total = microtime(true) - $totalstamp;
 223                 $rest = $total - ($fetch + $data + $checksum + $output);
 224
 225                 if (!is_null($scale) && ($scale < 4)) {
 226                         Logger::debug('Performance:', ['scale' => $scale, 'resource' => $photo['resource-id'],
 227                                 'total' => number_format($total, 3), 'fetch' => number_format($fetch, 3),
 228                                 'data' => number_format($data, 3), 'checksum' => number_format($checksum, 3),
 229                                 'output' => number_format($output, 3), 'rest' => number_format($rest, 3)]);
 230                 }
 231
 232                 System::exit();
 233         }
 234
 235         /**
 236          * Fetches photo record by given id number, type and custom size
 237          *
 238          * @param int $id Photo id
 239          * @param string $type Photo type
 240          * @param int $customsize Custom size (?)
 241          * @return array|bool Array on success, false on error
 242          */
 243         private static function getPhotoById(int $id, string $type, int $customsize)
 244         {
 245                 switch($type) {
 246                         case 'preview':
 247                                 $media = DBA::selectFirst('post-media', ['preview', 'url', 'preview-height', 'preview-width', 'height', 'width', 'mimetype', 'type', 'uri-id', 'blurhash'], ['id' => $id]);
 248                                 if (empty($media)) {
 249                                         return false;
 250                                 }
 251                                 $url    = $media['preview'];
 252                                 $width  = $media['preview-width'];
 253                                 $height = $media['preview-height'];
 254
 255                                 if (empty($url) && ($media['type'] == Post\Media::IMAGE)) {
 256                                         $url    = $media['url'];
 257                                         $width  = $media['width'];
 258                                         $height = $media['height'];
 259                                 }
 260
 261                                 if (empty($url)) {
 262                                         return false;
 263                                 }
 264
 265                                 if (Network::isLocalLink($url) && preg_match('|.*?/photo/(.*[a-fA-F0-9])\-(.*[0-9])\..*[\w]|', $url, $matches)) {
 266                                         return MPhoto::getPhoto($matches[1], $matches[2]);
 267                                 }
 268
 269                                 return MPhoto::createPhotoForExternalResource($url, (int)DI::userSession()->getLocalUserId(), $media['mimetype'] ?? '', $media['blurhash'], $width, $height);
 270                         case 'media':
 271                                 $media = DBA::selectFirst('post-media', ['url', 'height', 'width', 'mimetype', 'uri-id', 'blurhash'], ['id' => $id, 'type' => Post\Media::IMAGE]);
 272                                 if (empty($media)) {
 273                                         return false;
 274                                 }
 275
 276                                 if (Network::isLocalLink($media['url']) && preg_match('|.*?/photo/(.*[a-fA-F0-9])\-(.*[0-9])\..*[\w]|', $media['url'], $matches)) {
 277                                         return MPhoto::getPhoto($matches[1], $matches[2]);
 278                                 }
 279
 280                                 return MPhoto::createPhotoForExternalResource($media['url'], (int)DI::userSession()->getLocalUserId(), $media['mimetype'], $media['blurhash'], $media['width'], $media['height']);
 281                         case 'link':
 282                                 $link = DBA::selectFirst('post-link', ['url', 'mimetype'], ['id' => $id]);
 283                                 if (empty($link)) {
 284                                         return false;
 285                                 }
 286
 287                                 return MPhoto::createPhotoForExternalResource($link['url'], (int)DI::userSession()->getLocalUserId(), $link['mimetype'] ?? '');
 288                         case 'contact':
 289                                 $fields = ['uid', 'uri-id', 'url', 'nurl', 'avatar', 'photo', 'xmpp', 'addr', 'network', 'failed', 'updated'];
 290                                 $contact = Contact::getById($id, $fields);
 291                                 if (empty($contact)) {
 292                                         return false;
 293                                 }
 294
 295                                 // For local users directly use the photo record that is marked as the profile
 296                                 if (Network::isLocalLink($contact['url'])) {
 297                                         $contact = Contact::selectFirst($fields, ['nurl' => $contact['nurl'], 'self' => true]);
 298                                         if (!empty($contact)) {
 299                                                 if ($customsize <= Proxy::PIXEL_MICRO) {
 300                                                         $scale = 6;
 301                                                 } elseif ($customsize <= Proxy::PIXEL_THUMB) {
 302                                                         $scale = 5;
 303                                                 } else {
 304                                                         $scale = 4;
 305                                                 }
 306                                                 $photo = MPhoto::selectFirst([], ['scale' => $scale, 'uid' => $contact['uid'], 'profile' => 1]);
 307                                                 if (!empty($photo)) {
 308                                                         return $photo;
 309                                                 }
 310                                         }
 311                                 }
 312
 313                                 if (!empty($contact['uid']) && empty($contact['photo']) && empty($contact['avatar'])) {
 314                                         $contact = Contact::getByURL($contact['url'], false, $fields);
 315                                 }
 316
 317                                 if (!empty($contact['photo']) && !empty($contact['avatar'])) {
 318                                         // Fetch photo directly
 319                                         $resourceid = MPhoto::ridFromURI($contact['photo']);
 320                                         if (!empty($resourceid)) {
 321                                                 $photo = MPhoto::selectFirst([], ['resource-id' => $resourceid], ['order' => ['scale']]);
 322                                                 if (!empty($photo)) {
 323                                                         return $photo;
 324                                                 } else {
 325                                                         $url = $contact['avatar'];
 326                                                 }
 327                                         } else {
 328                                                 $url = $contact['photo'];
 329                                         }
 330                                 } elseif (!empty($contact['avatar'])) {
 331                                         $url = $contact['avatar'];
 332                                 }
 333                                 $mimetext = '';
 334                                 if (!empty($url)) {
 335                                         $mime = ParseUrl::getContentType($url, HttpClientAccept::IMAGE);
 336                                         if (!empty($mime)) {
 337                                                 $mimetext = $mime[0] . '/' . $mime[1];
 338                                         } else {
 339                                                 // Only update federated accounts that hadn't failed before and hadn't been updated recently
 340                                                 $update = in_array($contact['network'], Protocol::FEDERATED) && !$contact['failed']
 341                                                         && ((time() - strtotime($contact['updated']) > 86400));
 342                                                 if ($update) {
 343                                                         $curlResult = DI::httpClient()->head($url, [HttpClientOptions::ACCEPT_CONTENT => HttpClientAccept::IMAGE]);
 344                                                         $update = !$curlResult->isSuccess() && ($curlResult->getReturnCode() == 404);
 345                                                         Logger::debug('Got return code for avatar', ['return code' => $curlResult->getReturnCode(), 'cid' => $id, 'url' => $contact['url'], 'avatar' => $url]);
 346                                                 }
 347                                                 if ($update) {
 348                                                         Logger::info('Invalid file, contact update initiated', ['cid' => $id, 'url' => $contact['url'], 'avatar' => $url]);
 349                                                         Worker::add(Worker::PRIORITY_LOW, 'UpdateContact', $id);
 350                                                 } else {
 351                                                         Logger::info('Invalid file', ['cid' => $id, 'url' => $contact['url'], 'avatar' => $url]);
 352                                                 }
 353                                         }
 354                                         if (!empty($mimetext) && ($mime[0] != 'image') && ($mimetext != 'application/octet-stream')) {
 355                                                 Logger::info('Unexpected Content-Type', ['mime' => $mimetext, 'url' => $url]);
 356                                                 $mimetext = '';
 357                                         } if (!empty($mimetext)) {
 358                                                 Logger::debug('Expected Content-Type', ['mime' => $mimetext, 'url' => $url]);
 359                                         }
 360                                 }
 361                                 if (empty($mimetext)) {
 362                                         if ($customsize <= Proxy::PIXEL_MICRO) {
 363                                                 $url = Contact::getDefaultAvatar($contact ?: [], Proxy::SIZE_MICRO);
 364                                         } elseif ($customsize <= Proxy::PIXEL_THUMB) {
 365                                                 $url = Contact::getDefaultAvatar($contact ?: [], Proxy::SIZE_THUMB);
 366                                         } else {
 367                                                 $url = Contact::getDefaultAvatar($contact ?: [], Proxy::SIZE_SMALL);
 368                                         }
 369                                 }
 370                                 return MPhoto::createPhotoForExternalResource($url, 0, $mimetext);
 371                         case 'header':
 372                                 $fields = ['uid', 'url', 'header', 'network', 'gsid'];
 373                                 $contact = Contact::getById($id, $fields);
 374                                 if (empty($contact)) {
 375                                         return false;
 376                                 }
 377                                 If (($contact['uid'] != 0) && empty($contact['header'])) {
 378                                         $contact = Contact::getByURL($contact['url'], false, $fields);
 379                                 }
 380                                 if (!empty($contact['header'])) {
 381                                         $url = $contact['header'];
 382                                 } else {
 383                                         $url = Contact::getDefaultHeader($contact);
 384                                 }
 385                                 return MPhoto::createPhotoForExternalResource($url);
 386                         case 'banner':
 387                                 $photo = MPhoto::selectFirst([], ['scale' => 3, 'uid' => $id, 'photo-type' => MPhoto::USER_BANNER]);
 388                                 if (!empty($photo)) {
 389                                         return $photo;
 390                                 }
 391                                 return MPhoto::createPhotoForExternalResource(DI::baseUrl() . '/images/friendica-banner.jpg');
 392                         case 'profile':
 393                         case 'custom':
 394                                 $scale = 4;
 395                                 break;
 396                         case 'micro':
 397                                 $scale = 6;
 398                                 break;
 399                         case 'avatar':
 400                         default:
 401                                 $scale = 5;
 402                 }
 403
 404                 $photo = MPhoto::selectFirst([], ['scale' => $scale, 'uid' => $id, 'profile' => 1]);
 405                 if (empty($photo)) {
 406                         $contact = DBA::selectFirst('contact', [], ['uid' => $id, 'self' => true]) ?: [];
 407
 408                         switch($type) {
 409                                 case 'profile':
 410                                 case 'custom':
 411                                         $default = Contact::getDefaultAvatar($contact, Proxy::SIZE_SMALL);
 412                                         break;
 413                                 case 'micro':
 414                                         $default = Contact::getDefaultAvatar($contact, Proxy::SIZE_MICRO);
 415                                         break;
 416                                 case 'avatar':
 417                                 default:
 418                                         $default = Contact::getDefaultAvatar($contact, Proxy::SIZE_THUMB);
 419                         }
 420
 421                         $parts = parse_url($default);
 422                         if (!empty($parts['scheme']) || !empty($parts['host'])) {
 423                                 $photo = MPhoto::createPhotoForExternalResource($default);
 424                         } else {
 425                                 $photo = MPhoto::createPhotoForSystemResource($default);
 426                         }
 427                 }
 428                 return $photo;
 429         }
 430 }