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