src/Model/Post/Media.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2021, 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\Model\Post;
  23
  24 use Friendica\Content\Text\BBCode;
  25 use Friendica\Core\Logger;
  26 use Friendica\Core\System;
  27 use Friendica\Database\Database;
  28 use Friendica\Database\DBA;
  29 use Friendica\DI;
  30 use Friendica\Model\Item;
  31 use Friendica\Model\Photo;
  32 use Friendica\Model\Post;
  33 use Friendica\Util\Images;
  34 use Friendica\Util\Network;
  35 use Friendica\Util\ParseUrl;
  36 use Friendica\Util\Proxy;
  37 use Friendica\Util\Strings;
  38
  39 /**
  40  * Class Media
  41  *
  42  * This Model class handles media interactions.
  43  * This tables stores medias (images, videos, audio files) related to posts.
  44  */
  45 class Media
  46 {
  47         const UNKNOWN     = 0;
  48         const IMAGE       = 1;
  49         const VIDEO       = 2;
  50         const AUDIO       = 3;
  51         const TEXT        = 4;
  52         const APPLICATION = 5;
  53         const TORRENT     = 16;
  54         const HTML        = 17;
  55         const XML         = 18;
  56         const PLAIN       = 19;
  57         const DOCUMENT    = 128;
  58
  59         /**
  60          * Insert a post-media record
  61          *
  62          * @param array $media
  63          * @return void
  64          */
  65         public static function insert(array $media, bool $force = false)
  66         {
  67                 if (empty($media['url']) || empty($media['uri-id']) || !isset($media['type'])) {
  68                         Logger::warning('Incomplete media data', ['media' => $media]);
  69                         return;
  70                 }
  71
  72                 if (DBA::exists('post-media', ['uri-id' => $media['uri-id'], 'preview' => $media['url']])) {
  73                         Logger::info('Media already exists as preview', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'callstack' => System::callstack()]);
  74                         return;
  75                 }
  76
  77                 // "document" has got the lowest priority. So when the same file is both attached as document
  78                 // and embedded as picture then we only store the picture or replace the document
  79                 $found = DBA::selectFirst('post-media', ['type'], ['uri-id' => $media['uri-id'], 'url' => $media['url']]);
  80                 if (!$force && !empty($found) && (($found['type'] != self::DOCUMENT) || ($media['type'] == self::DOCUMENT))) {
  81                         Logger::info('Media already exists', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'callstack' => System::callstack()]);
  82                         return;
  83                 }
  84
  85                 $media = self::unsetEmptyFields($media);
  86
  87                 // We are storing as fast as possible to avoid duplicated network requests
  88                 // when fetching additional information for pictures and other content.
  89                 $result = DBA::insert('post-media', $media, Database::INSERT_UPDATE);
  90                 Logger::info('Stored media', ['result' => $result, 'media' => $media, 'callstack' => System::callstack()]);
  91                 $stored = $media;
  92
  93                 $media = self::fetchAdditionalData($media);
  94                 $media = self::unsetEmptyFields($media);
  95
  96                 if (array_diff_assoc($media, $stored)) {
  97                         $result = DBA::insert('post-media', $media, Database::INSERT_UPDATE);
  98                         Logger::info('Updated media', ['result' => $result, 'media' => $media]);
  99                 } else {
 100                         Logger::info('Nothing to update', ['media' => $media]);
 101                 }
 102         }
 103
 104         /**
 105          * Remove empty media fields
 106          *
 107          * @param array $media
 108          * @return array cleaned media array
 109          */
 110         private static function unsetEmptyFields(array $media)
 111         {
 112                 $fields = ['mimetype', 'height', 'width', 'size', 'preview', 'preview-height', 'preview-width', 'description'];
 113                 foreach ($fields as $field) {
 114                         if (empty($media[$field])) {
 115                                 unset($media[$field]);
 116                         }
 117                 }
 118                 return $media;
 119         }
 120
 121         /**
 122          * Copy attachments from one uri-id to another
 123          *
 124          * @param integer $from_uri_id
 125          * @param integer $to_uri_id
 126          * @return void
 127          */
 128         public static function copy(int $from_uri_id, int $to_uri_id)
 129         {
 130                 $attachments = self::getByURIId($from_uri_id);
 131                 foreach ($attachments as $attachment) {
 132                         $attachment['uri-id'] = $to_uri_id;
 133                         self::insert($attachment);
 134                 }
 135         }
 136
 137         /**
 138          * Creates the "[attach]" element from the given attributes
 139          *
 140          * @param string $href
 141          * @param integer $length
 142          * @param string $type
 143          * @param string $title
 144          * @return string "[attach]" element
 145          */
 146         public static function getAttachElement(string $href, int $length, string $type, string $title = '')
 147         {
 148                 $media = self::fetchAdditionalData(['type' => self::DOCUMENT, 'url' => $href,
 149                         'size' => $length, 'mimetype' => $type, 'description' => $title]);
 150
 151                 return '[attach]href="' . $media['url'] . '" length="' . $media['size'] .
 152                         '" type="' . $media['mimetype'] . '" title="' . $media['description'] . '"[/attach]';
 153         }
 154
 155         /**
 156          * Fetch additional data for the provided media array
 157          *
 158          * @param array $media
 159          * @return array media array with additional data
 160          */
 161         public static function fetchAdditionalData(array $media)
 162         {
 163                 if (Network::isLocalLink($media['url'])) {
 164                         $media = self::fetchLocalData($media);
 165                 }
 166
 167                 // Fetch the mimetype or size if missing.
 168                 if (empty($media['mimetype']) || empty($media['size'])) {
 169                         $timeout = DI::config()->get('system', 'xrd_timeout');
 170                         $curlResult = DI::httpRequest()->head($media['url'], ['timeout' => $timeout]);
 171                         if ($curlResult->isSuccess()) {
 172                                 if (empty($media['mimetype'])) {
 173                                         $media['mimetype'] = $curlResult->getHeader('Content-Type')[0] ?? '';
 174                                 }
 175                                 if (empty($media['size'])) {
 176                                         $media['size'] = (int)($curlResult->getHeader('Content-Length')[0] ?? 0);
 177                                 }
 178                         } else {
 179                                 Logger::notice('Could not fetch head', ['media' => $media]);
 180                         }
 181                 }
 182
 183                 $filetype = !empty($media['mimetype']) ? strtolower(current(explode('/', $media['mimetype']))) : '';
 184
 185                 if (($media['type'] == self::IMAGE) || ($filetype == 'image')) {
 186                         $imagedata = Images::getInfoFromURLCached($media['url']);
 187                         if (!empty($imagedata)) {
 188                                 $media['mimetype'] = $imagedata['mime'];
 189                                 $media['size'] = $imagedata['size'];
 190                                 $media['width'] = $imagedata[0];
 191                                 $media['height'] = $imagedata[1];
 192                         } else {
 193                                 Logger::notice('No image data', ['media' => $media]);
 194                         }
 195                         if (!empty($media['preview'])) {
 196                                 $imagedata = Images::getInfoFromURLCached($media['preview']);
 197                                 if (!empty($imagedata)) {
 198                                         $media['preview-width'] = $imagedata[0];
 199                                         $media['preview-height'] = $imagedata[1];
 200                                 }
 201                         }
 202                 }
 203
 204                 if ($media['type'] != self::DOCUMENT) {
 205                         $media = self::addType($media);
 206                 }
 207
 208                 if ($media['type'] == self::HTML) {
 209                         $data = ParseUrl::getSiteinfoCached($media['url'], false);
 210                         $media['preview'] = $data['images'][0]['src'] ?? null;
 211                         $media['preview-height'] = $data['images'][0]['height'] ?? null;
 212                         $media['preview-width'] = $data['images'][0]['width'] ?? null;
 213                         $media['description'] = $data['text'] ?? null;
 214                         $media['name'] = $data['title'] ?? null;
 215                         $media['author-url'] = $data['author_url'] ?? null;
 216                         $media['author-name'] = $data['author_name'] ?? null;
 217                         $media['author-image'] = $data['author_img'] ?? null;
 218                         $media['publisher-url'] = $data['publisher_url'] ?? null;
 219                         $media['publisher-name'] = $data['publisher_name'] ?? null;
 220                         $media['publisher-image'] = $data['publisher_img'] ?? null;
 221                 }
 222                 return $media;
 223         }
 224
 225         /**
 226          * Fetch media data from local resources
 227          * @param array $media
 228          * @return array media with added data
 229          */
 230         private static function fetchLocalData(array $media)
 231         {
 232                 if (!preg_match('|.*?/photo/(.*[a-fA-F0-9])\-(.*[0-9])\..*[\w]|', $media['url'] ?? '', $matches)) {
 233                         return $media;
 234                 }
 235                 $photo = Photo::selectFirst([], ['resource-id' => $matches[1], 'scale' => $matches[2]]);
 236                 if (!empty($photo)) {
 237                         $media['mimetype'] = $photo['type'];
 238                         $media['size'] = $photo['datasize'];
 239                         $media['width'] = $photo['width'];
 240                         $media['height'] = $photo['height'];
 241                 }
 242
 243                 if (!preg_match('|.*?/photo/(.*[a-fA-F0-9])\-(.*[0-9])\..*[\w]|', $media['preview'] ?? '', $matches)) {
 244                         return $media;
 245                 }
 246                 $photo = Photo::selectFirst([], ['resource-id' => $matches[1], 'scale' => $matches[2]]);
 247                 if (!empty($photo)) {
 248                         $media['preview-width'] = $photo['width'];
 249                         $media['preview-height'] = $photo['height'];
 250                 }
 251
 252                 return $media;
 253         }
 254
 255         /**
 256          * Add the detected type to the media array
 257          *
 258          * @param array $data
 259          * @return array data array with the detected type
 260          */
 261         public static function addType(array $data)
 262         {
 263                 if (empty($data['mimetype'])) {
 264                         Logger::info('No MimeType provided', ['media' => $data]);
 265                         return $data;
 266                 }
 267
 268                 $type = explode('/', current(explode(';', $data['mimetype'])));
 269                 if (count($type) < 2) {
 270                         Logger::info('Unknown MimeType', ['type' => $type, 'media' => $data]);
 271                         $data['type'] = self::UNKNOWN;
 272                         return $data;
 273                 }
 274
 275                 $filetype = strtolower($type[0]);
 276                 $subtype = strtolower($type[1]);
 277
 278                 if ($filetype == 'image') {
 279                         $data['type'] = self::IMAGE;
 280                 } elseif ($filetype == 'video') {
 281                         $data['type'] = self::VIDEO;
 282                 } elseif ($filetype == 'audio') {
 283                         $data['type'] = self::AUDIO;
 284                 } elseif (($filetype == 'text') && ($subtype == 'html')) {
 285                         $data['type'] = self::HTML;
 286                 } elseif (($filetype == 'text') && ($subtype == 'xml')) {
 287                         $data['type'] = self::XML;
 288                 } elseif (($filetype == 'text') && ($subtype == 'plain')) {
 289                         $data['type'] = self::PLAIN;
 290                 } elseif ($filetype == 'text') {
 291                         $data['type'] = self::TEXT;
 292                 } elseif (($filetype == 'application') && ($subtype == 'x-bittorrent')) {
 293                         $data['type'] = self::TORRENT;
 294                 } elseif ($filetype == 'application') {
 295                         $data['type'] = self::APPLICATION;
 296                 } else {
 297                         $data['type'] = self::UNKNOWN;
 298                         Logger::info('Unknown type', ['filetype' => $filetype, 'subtype' => $subtype, 'media' => $data]);
 299                         return $data;
 300                 }
 301
 302                 Logger::debug('Detected type', ['filetype' => $filetype, 'subtype' => $subtype, 'media' => $data]);
 303                 return $data;
 304         }
 305
 306         /**
 307          * Tests for path patterns that are usef for picture links in Friendica
 308          *
 309          * @param string $page    Link to the image page
 310          * @param string $preview Preview picture
 311          * @return boolean
 312          */
 313         private static function isPictureLink(string $page, string $preview)
 314         {
 315                 return preg_match('#/photos/.*/image/#ism', $page) && preg_match('#/photo/.*-1\.#ism', $preview);
 316         }
 317
 318         /**
 319          * Add media links and remove them from the body
 320          *
 321          * @param integer $uriid
 322          * @param string $body
 323          * @return string Body without media links
 324          */
 325         public static function insertFromBody(int $uriid, string $body)
 326         {
 327                 // Simplify image codes
 328                 $unshared_body = $body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $body);
 329
 330                 // Only remove the shared data from "real" reshares
 331                 $shared = BBCode::fetchShareAttributes($body);
 332                 if (!empty($shared['guid'])) {
 333                         $unshared_body = preg_replace("/\s*\[share .*?\].*?\[\/share\]\s*/ism", '', $body);
 334                 }
 335
 336                 $attachments = [];
 337                 if (preg_match_all("#\[url=([^\]]+?)\]\s*\[img=([^\[\]]*)\]([^\[\]]*)\[\/img\]\s*\[/url\]#ism", $body, $pictures, PREG_SET_ORDER)) {
 338                         foreach ($pictures as $picture) {
 339                                 if (!self::isPictureLink($picture[1], $picture[2])) {
 340                                         continue;
 341                                 }
 342                                 $body = str_replace($picture[0], '', $body);
 343                                 $image = str_replace('-1.', '-0.', $picture[2]);
 344                                 $attachments[$image] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $image,
 345                                         'preview' => $picture[2], 'description' => $picture[3]];
 346                         }
 347                 }
 348
 349                 if (preg_match_all("/\[img=([^\[\]]*)\]([^\[\]]*)\[\/img\]/Usi", $body, $pictures, PREG_SET_ORDER)) {
 350                         foreach ($pictures as $picture) {
 351                                 $body = str_replace($picture[0], '', $body);
 352                                 $attachments[$picture[1]] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $picture[1], 'description' => $picture[2]];
 353                         }
 354                 }
 355
 356                 if (preg_match_all("#\[url=([^\]]+?)\]\s*\[img\]([^\[]+?)\[/img\]\s*\[/url\]#ism", $body, $pictures, PREG_SET_ORDER)) {
 357                         foreach ($pictures as $picture) {
 358                                 if (!self::isPictureLink($picture[1], $picture[2])) {
 359                                         continue;
 360                                 }
 361                                 $body = str_replace($picture[0], '', $body);
 362                                 $image = str_replace('-1.', '-0.', $picture[2]);
 363                                 $attachments[$image] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $image,
 364                                         'preview' => $picture[2], 'description' => null];
 365                         }
 366                 }
 367
 368                 if (preg_match_all("/\[img\]([^\[\]]*)\[\/img\]/ism", $body, $pictures, PREG_SET_ORDER)) {
 369                         foreach ($pictures as $picture) {
 370                                 $body = str_replace($picture[0], '', $body);
 371                                 $attachments[$picture[1]] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $picture[1]];
 372                         }
 373                 }
 374
 375                 if (preg_match_all("/\[audio\]([^\[\]]*)\[\/audio\]/ism", $body, $audios, PREG_SET_ORDER)) {
 376                         foreach ($audios as $audio) {
 377                                 $body = str_replace($audio[0], '', $body);
 378                                 $attachments[$audio[1]] = ['uri-id' => $uriid, 'type' => self::AUDIO, 'url' => $audio[1]];
 379                         }
 380                 }
 381
 382                 if (preg_match_all("/\[video\]([^\[\]]*)\[\/video\]/ism", $body, $videos, PREG_SET_ORDER)) {
 383                         foreach ($videos as $video) {
 384                                 $body = str_replace($video[0], '', $body);
 385                                 $attachments[$video[1]] = ['uri-id' => $uriid, 'type' => self::VIDEO, 'url' => $video[1]];
 386                         }
 387                 }
 388
 389                 foreach ($attachments as $attachment) {
 390                         // Only store attachments that are part of the unshared body
 391                         if (Item::containsLink($unshared_body, $attachment['preview'] ?? $attachment['url'], $attachment['type'])) {
 392                                 self::insert($attachment);
 393                         }
 394                 }
 395
 396                 return trim($body);
 397         }
 398
 399         /**
 400          * Add media links from a relevant url in the body
 401          *
 402          * @param integer $uriid
 403          * @param string $body
 404          */
 405         public static function insertFromRelevantUrl(int $uriid, string $body)
 406         {
 407                 // Only remove the shared data from "real" reshares
 408                 $shared = BBCode::fetchShareAttributes($body);
 409                 if (!empty($shared['guid'])) {
 410                         // Don't look at the shared content
 411                         $body = preg_replace("/\s*\[share .*?\].*?\[\/share\]\s*/ism", '', $body);
 412                 }
 413
 414                 // Remove all hashtags and mentions
 415                 $body = preg_replace("/([#@!])\[url\=(.*?)\](.*?)\[\/url\]/ism", '', $body);
 416
 417                 // Search for pure links
 418                 if (preg_match_all("/\[url\](https?:.*?)\[\/url\]/ism", $body, $matches)) {
 419                         foreach ($matches[1] as $url) {
 420                                 Logger::info('Got page url (link without description)', ['uri-id' => $uriid, 'url' => $url]);
 421                                 self::insert(['uri-id' => $uriid, 'type' => self::UNKNOWN, 'url' => $url]);
 422                         }
 423                 }
 424
 425                 // Search for links with descriptions
 426                 if (preg_match_all("/\[url\=(https?:.*?)\].*?\[\/url\]/ism", $body, $matches)) {
 427                         foreach ($matches[1] as $url) {
 428                                 Logger::info('Got page url (link with description)', ['uri-id' => $uriid, 'url' => $url]);
 429                                 self::insert(['uri-id' => $uriid, 'type' => self::UNKNOWN, 'url' => $url]);
 430                         }
 431                 }
 432         }
 433
 434         /**
 435          * Add media links from the attachment field
 436          *
 437          * @param integer $uriid
 438          * @param string $body
 439          */
 440         public static function insertFromAttachmentData(int $uriid, string $body)
 441         {
 442                 // Don't look at the shared content
 443                 $body = preg_replace("/\s*\[share .*?\].*?\[\/share\]\s*/ism", '', $body);
 444
 445                 $data = BBCode::getAttachmentData($body);
 446                 if (empty($data))  {
 447                         return;
 448                 }
 449
 450                 Logger::info('Adding attachment data', ['data' => $data]);
 451                 $attachment = [
 452                         'uri-id' => $uriid,
 453                         'type' => self::HTML,
 454                         'url' => $data['url'],
 455                         'preview' => $data['preview'] ?? null,
 456                         'description' => $data['description'] ?? null,
 457                         'name' => $data['title'] ?? null,
 458                         'author-url' => $data['author_url'] ?? null,
 459                         'author-name' => $data['author_name'] ?? null,
 460                         'publisher-url' => $data['provider_url'] ?? null,
 461                         'publisher-name' => $data['provider_name'] ?? null,
 462                 ];
 463                 if (!empty($data['image'])) {
 464                         $attachment['preview'] = $data['image'];
 465                 }
 466                 self::insert($attachment);
 467         }
 468
 469         /**
 470          * Add media links from the attach field
 471          *
 472          * @param integer $uriid
 473          * @param string $attach
 474          * @return void
 475          */
 476         public static function insertFromAttachment(int $uriid, string $attach)
 477         {
 478                 if (!preg_match_all('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\"(?: title=\"(.*?)\")?|', $attach, $matches, PREG_SET_ORDER)) {
 479                         return;
 480                 }
 481
 482                 foreach ($matches as $attachment) {
 483                         $media['type'] = self::DOCUMENT;
 484                         $media['uri-id'] = $uriid;
 485                         $media['url'] = $attachment[1];
 486                         $media['size'] = $attachment[2];
 487                         $media['mimetype'] = $attachment[3];
 488                         $media['description'] = $attachment[4] ?? '';
 489
 490                         self::insert($media);
 491                 }
 492         }
 493
 494         /**
 495          * Retrieves the media attachments associated with the provided item ID.
 496          *
 497          * @param int $uri_id
 498          * @param array $types
 499          * @return array
 500          * @throws \Exception
 501          */
 502         public static function getByURIId(int $uri_id, array $types = [])
 503         {
 504                 $condition = ['uri-id' => $uri_id];
 505
 506                 if (!empty($types)) {
 507                         $condition = DBA::mergeConditions($condition, ['type' => $types]);
 508                 }
 509
 510                 return DBA::selectToArray('post-media', [], $condition);
 511         }
 512
 513         /**
 514          * Checks if media attachments are associated with the provided item ID.
 515          *
 516          * @param int $uri_id
 517          * @param array $types
 518          * @return array
 519          * @throws \Exception
 520          */
 521         public static function existsByURIId(int $uri_id, array $types = [])
 522         {
 523                 $condition = ['uri-id' => $uri_id];
 524
 525                 if (!empty($types)) {
 526                         $condition = DBA::mergeConditions($condition, ['type' => $types]);
 527                 }
 528
 529                 return DBA::exists('post-media', $condition);
 530         }
 531
 532         /**
 533          * Split the attachment media in the three segments "visual", "link" and "additional"
 534          *
 535          * @param int    $uri_id
 536          * @param string $guid
 537          * @param array  $links list of links that shouldn't be added
 538          * @return array attachments
 539          */
 540         public static function splitAttachments(int $uri_id, string $guid = '', array $links = [])
 541         {
 542                 $attachments = ['visual' => [], 'link' => [], 'additional' => []];
 543
 544                 $media = self::getByURIId($uri_id);
 545                 if (empty($media)) {
 546                         return $attachments;
 547                 }
 548
 549                 $height = 0;
 550                 $selected = '';
 551                 $previews = [];
 552
 553                 foreach ($media as $medium) {
 554                         foreach ($links as $link) {
 555                                 if (Strings::compareLink($link, $medium['url'])) {
 556                                         continue 2;
 557                                 }
 558                         }
 559
 560                         // Avoid adding separate media entries for previews
 561                         foreach ($previews as $preview) {
 562                                 if (Strings::compareLink($preview, $medium['url'])) {
 563                                         continue 2;
 564                                 }
 565                         }
 566
 567                         if (!empty($medium['preview'])) {
 568                                 $previews[] = $medium['preview'];
 569                         }
 570
 571                         $type = explode('/', current(explode(';', $medium['mimetype'])));
 572                         if (count($type) < 2) {
 573                                 Logger::info('Unknown MimeType', ['type' => $type, 'media' => $medium]);
 574                                 $filetype = 'unkn';
 575                                 $subtype = 'unkn';
 576                         } else {
 577                                 $filetype = strtolower($type[0]);
 578                                 $subtype = strtolower($type[1]);
 579                         }
 580
 581                         $medium['filetype'] = $filetype;
 582                         $medium['subtype'] = $subtype;
 583
 584                         if ($medium['type'] == self::HTML || (($filetype == 'text') && ($subtype == 'html'))) {
 585                                 $attachments['link'][] = $medium;
 586                                 continue;
 587                         }
 588
 589                         if (in_array($medium['type'], [self::AUDIO, self::IMAGE]) ||
 590                                 in_array($filetype, ['audio', 'image'])) {
 591                                 $attachments['visual'][] = $medium;
 592                         } elseif (($medium['type'] == self::VIDEO) || ($filetype == 'video')) {
 593                                 if (strpos($medium['url'], $guid) !== false) {
 594                                         // Peertube videos are delivered in many different resolutions. We pick a moderate one.
 595                                         // By checking against the GUID we also ensure to only work this way on Peertube posts.
 596                                         // This wouldn't be executed when someone for example on Mastodon was sharing multiple videos in a single post.
 597                                         if (empty($height) || ($height > $medium['height']) && ($medium['height'] >= 480)) {
 598                                                 $height = $medium['height'];
 599                                                 $selected = $medium['url'];
 600                                         }
 601                                         $video[$medium['url']] = $medium;
 602                                 } else {
 603                                         $attachments['visual'][] = $medium;
 604                                 }
 605                         } else {
 606                                 $attachments['additional'][] = $medium;
 607                         }
 608                 }
 609                 if (!empty($selected)) {
 610                         $attachments['visual'][] = $video[$selected];
 611                         unset($video[$selected]);
 612                         foreach ($video as $element) {
 613                                 $attachments['additional'][] = $element;
 614                         }
 615                 }
 616                 return $attachments;
 617         }
 618
 619         /**
 620          * Add media attachments to the body
 621          *
 622          * @param int $uriid
 623          * @param string $body
 624          * @return string body
 625          */
 626         public static function addAttachmentsToBody(int $uriid, string $body = '')
 627         {
 628                 if (empty($body)) {
 629                         $item = Post::selectFirst(['body'], ['uri-id' => $uriid]);
 630                         if (!DBA::isResult($item)) {
 631                                 return '';
 632                         }
 633                         $body = $item['body'];
 634                 }
 635                 $original_body = $body;
 636
 637                 $body = preg_replace("/\s*\[attachment .*?\].*?\[\/attachment\]\s*/ism", '', $body);
 638
 639                 foreach (self::getByURIId($uriid, [self::IMAGE, self::AUDIO, self::VIDEO]) as $media) {
 640                         if (Item::containsLink($body, $media['preview'] ?? $media['url'], $media['type'])) {
 641                                 continue;
 642                         }
 643
 644                         if ($media['type'] == self::IMAGE) {
 645                                 if (!empty($media['preview'])) {
 646                                         if (!empty($media['description'])) {
 647                                                 $body .= "\n[url=" . $media['url'] . "][img=" . $media['preview'] . ']' . $media['description'] .'[/img][/url]';
 648                                         } else {
 649                                                 $body .= "\n[url=" . $media['url'] . "][img]" . $media['preview'] .'[/img][/url]';
 650                                         }
 651                                 } else {
 652                                         if (!empty($media['description'])) {
 653                                                 $body .= "\n[img=" . $media['url'] . ']' . $media['description'] .'[/img]';
 654                                         } else {
 655                                                 $body .= "\n[img]" . $media['url'] .'[/img]';
 656                                         }
 657                                 }
 658                         } elseif ($media['type'] == self::AUDIO) {
 659                                 $body .= "\n[audio]" . $media['url'] . "[/audio]\n";
 660                         } elseif ($media['type'] == self::VIDEO) {
 661                                 $body .= "\n[video]" . $media['url'] . "[/video]\n";
 662                         }
 663                 }
 664
 665                 if (preg_match("/.*(\[attachment.*?\].*?\[\/attachment\]).*/ism", $original_body, $match)) {
 666                         $body .= "\n" . $match[1];
 667                 }
 668
 669                 return $body;
 670         }
 671
 672         /**
 673          * Get preview link for given media id
 674          *
 675          * @param integer $id   media id
 676          * @param string  $size One of the ProxyUtils::SIZE_* constants
 677          * @return string preview link
 678          */
 679         public static function getPreviewUrlForId(int $id, string $size = ''):string
 680         {
 681                 $url = DI::baseUrl() . '/photo/preview/';
 682                 switch ($size) {
 683                         case Proxy::SIZE_MICRO:
 684                                 $url .= Proxy::PIXEL_MICRO . '/';
 685                                 break;
 686                         case Proxy::SIZE_THUMB:
 687                                 $url .= Proxy::PIXEL_THUMB . '/';
 688                                 break;
 689                         case Proxy::SIZE_SMALL:
 690                                 $url .= Proxy::PIXEL_SMALL . '/';
 691                                 break;
 692                         case Proxy::SIZE_MEDIUM:
 693                                 $url .= Proxy::PIXEL_MEDIUM . '/';
 694                                 break;
 695                         case Proxy::SIZE_LARGE:
 696                                 $url .= Proxy::PIXEL_LARGE . '/';
 697                                 break;
 698                 }
 699                 return $url . $id;
 700         }
 701
 702         /**
 703          * Get media link for given media id
 704          *
 705          * @param integer $id   media id
 706          * @param string  $size One of the ProxyUtils::SIZE_* constants
 707          * @return string media link
 708          */
 709         public static function getUrlForId(int $id, string $size = ''):string
 710         {
 711                 $url = DI::baseUrl() . '/photo/media/';
 712                 switch ($size) {
 713                         case Proxy::SIZE_MICRO:
 714                                 $url .= Proxy::PIXEL_MICRO . '/';
 715                                 break;
 716                         case Proxy::SIZE_THUMB:
 717                                 $url .= Proxy::PIXEL_THUMB . '/';
 718                                 break;
 719                         case Proxy::SIZE_SMALL:
 720                                 $url .= Proxy::PIXEL_SMALL . '/';
 721                                 break;
 722                         case Proxy::SIZE_MEDIUM:
 723                                 $url .= Proxy::PIXEL_MEDIUM . '/';
 724                                 break;
 725                         case Proxy::SIZE_LARGE:
 726                                 $url .= Proxy::PIXEL_LARGE . '/';
 727                                 break;
 728                 }
 729                 return $url . $id;
 730         }
 731 }