src/Model/Post/Media.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2023, 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\Protocol;
  27 use Friendica\Core\System;
  28 use Friendica\Database\Database;
  29 use Friendica\Database\DBA;
  30 use Friendica\DI;
  31 use Friendica\Model\Contact;
  32 use Friendica\Model\Item;
  33 use Friendica\Model\ItemURI;
  34 use Friendica\Model\Photo;
  35 use Friendica\Model\Post;
  36 use Friendica\Network\HTTPClient\Client\HttpClientAccept;
  37 use Friendica\Network\HTTPClient\Client\HttpClientOptions;
  38 use Friendica\Util\Images;
  39 use Friendica\Util\Network;
  40 use Friendica\Util\ParseUrl;
  41 use Friendica\Util\Proxy;
  42 use Friendica\Util\Strings;
  43
  44 /**
  45  * Class Media
  46  *
  47  * This Model class handles media interactions.
  48  * This tables stores medias (images, videos, audio files) related to posts.
  49  */
  50 class Media
  51 {
  52         const UNKNOWN     = 0;
  53         const IMAGE       = 1;
  54         const VIDEO       = 2;
  55         const AUDIO       = 3;
  56         const TEXT        = 4;
  57         const APPLICATION = 5;
  58         const TORRENT     = 16;
  59         const HTML        = 17;
  60         const XML         = 18;
  61         const PLAIN       = 19;
  62         const ACTIVITY    = 20;
  63         const ACCOUNT     = 21;
  64         const DOCUMENT    = 128;
  65
  66         /**
  67          * Insert a post-media record
  68          *
  69          * @param array $media
  70          * @param bool  $force
  71          * @return bool
  72          */
  73         public static function insert(array $media, bool $force = false): bool
  74         {
  75                 if (empty($media['url']) || empty($media['uri-id']) || !isset($media['type'])) {
  76                         Logger::warning('Incomplete media data', ['media' => $media]);
  77                         return false;
  78                 }
  79
  80                 if (DBA::exists('post-media', ['uri-id' => $media['uri-id'], 'preview' => $media['url']])) {
  81                         Logger::info('Media already exists as preview', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'callstack' => System::callstack()]);
  82                         return false;
  83                 }
  84
  85                 // "document" has got the lowest priority. So when the same file is both attached as document
  86                 // and embedded as picture then we only store the picture or replace the document
  87                 $found = DBA::selectFirst('post-media', ['type'], ['uri-id' => $media['uri-id'], 'url' => $media['url']]);
  88                 if (!$force && !empty($found) && (($found['type'] != self::DOCUMENT) || ($media['type'] == self::DOCUMENT))) {
  89                         Logger::info('Media already exists', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'callstack' => System::callstack()]);
  90                         return false;
  91                 }
  92
  93                 if (!ItemURI::exists($media['uri-id'])) {
  94                         Logger::info('Media referenced URI ID not found', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'callstack' => System::callstack()]);
  95                         return false;
  96                 }
  97
  98                 $media = self::unsetEmptyFields($media);
  99                 $media = DI::dbaDefinition()->truncateFieldsForTable('post-media', $media);
 100
 101                 // We are storing as fast as possible to avoid duplicated network requests
 102                 // when fetching additional information for pictures and other content.
 103                 $result = DBA::insert('post-media', $media, Database::INSERT_UPDATE);
 104                 Logger::info('Stored media', ['result' => $result, 'media' => $media, 'callstack' => System::callstack()]);
 105                 $stored = $media;
 106
 107                 $media = self::fetchAdditionalData($media);
 108                 $media = self::unsetEmptyFields($media);
 109                 $media = DI::dbaDefinition()->truncateFieldsForTable('post-media', $media);
 110
 111                 if (array_diff_assoc($media, $stored)) {
 112                         $result = DBA::insert('post-media', $media, Database::INSERT_UPDATE);
 113                         Logger::info('Updated media', ['result' => $result, 'media' => $media]);
 114                 } else {
 115                         Logger::info('Nothing to update', ['media' => $media]);
 116                 }
 117                 return $result;
 118         }
 119
 120         /**
 121          * Remove empty media fields
 122          *
 123          * @param array $media
 124          * @return array cleaned media array
 125          */
 126         private static function unsetEmptyFields(array $media): array
 127         {
 128                 $fields = ['mimetype', 'height', 'width', 'size', 'preview', 'preview-height', 'preview-width', 'blurhash', 'description'];
 129                 foreach ($fields as $field) {
 130                         if (empty($media[$field])) {
 131                                 unset($media[$field]);
 132                         }
 133                 }
 134                 return $media;
 135         }
 136
 137         /**
 138          * Copy attachments from one uri-id to another
 139          *
 140          * @param integer $from_uri_id
 141          * @param integer $to_uri_id
 142          * @return void
 143          */
 144         public static function copy(int $from_uri_id, int $to_uri_id)
 145         {
 146                 $attachments = self::getByURIId($from_uri_id);
 147                 foreach ($attachments as $attachment) {
 148                         $attachment['uri-id'] = $to_uri_id;
 149                         self::insert($attachment);
 150                 }
 151         }
 152
 153         /**
 154          * Creates the "[attach]" element from the given attributes
 155          *
 156          * @param string $href
 157          * @param integer $length
 158          * @param string $type
 159          * @param string $title
 160          * @return string "[attach]" element
 161          */
 162         public static function getAttachElement(string $href, int $length, string $type, string $title = ''): string
 163         {
 164                 $media = self::fetchAdditionalData(['type' => self::DOCUMENT, 'url' => $href,
 165                         'size' => $length, 'mimetype' => $type, 'description' => $title]);
 166
 167                 return '[attach]href="' . $media['url'] . '" length="' . $media['size'] .
 168                         '" type="' . $media['mimetype'] . '" title="' . $media['description'] . '"[/attach]';
 169         }
 170
 171         /**
 172          * Fetch additional data for the provided media array
 173          *
 174          * @param array $media
 175          * @return array media array with additional data
 176          */
 177         public static function fetchAdditionalData(array $media): array
 178         {
 179                 if (Network::isLocalLink($media['url'])) {
 180                         $media = self::fetchLocalData($media);
 181                 }
 182
 183                 // Fetch the mimetype or size if missing.
 184                 if (Network::isValidHttpUrl($media['url']) && (empty($media['mimetype']) || empty($media['size']))) {
 185                         $timeout = DI::config()->get('system', 'xrd_timeout');
 186                         $curlResult = DI::httpClient()->head($media['url'], [HttpClientOptions::TIMEOUT => $timeout]);
 187
 188                         // Workaround for systems that can't handle a HEAD request
 189                         if (!$curlResult->isSuccess() && ($curlResult->getReturnCode() == 405)) {
 190                                 $curlResult = DI::httpClient()->get($media['url'], HttpClientAccept::DEFAULT, [HttpClientOptions::TIMEOUT => $timeout]);
 191                         }
 192
 193                         if ($curlResult->isSuccess()) {
 194                                 if (empty($media['mimetype'])) {
 195                                         $media['mimetype'] = $curlResult->getHeader('Content-Type')[0] ?? '';
 196                                 }
 197                                 if (empty($media['size'])) {
 198                                         $media['size'] = (int)($curlResult->getHeader('Content-Length')[0] ?? 0);
 199                                 }
 200                         } else {
 201                                 Logger::notice('Could not fetch head', ['media' => $media]);
 202                         }
 203                 }
 204
 205                 $filetype = !empty($media['mimetype']) ? strtolower(current(explode('/', $media['mimetype']))) : '';
 206
 207                 if (($media['type'] == self::IMAGE) || ($filetype == 'image')) {
 208                         $imagedata = Images::getInfoFromURLCached($media['url']);
 209                         if ($imagedata) {
 210                                 $media['mimetype'] = $imagedata['mime'];
 211                                 $media['size'] = $imagedata['size'];
 212                                 $media['width'] = $imagedata[0];
 213                                 $media['height'] = $imagedata[1];
 214                                 $media['blurhash'] = $imagedata['blurhash'] ?? null;
 215                         } else {
 216                                 Logger::notice('No image data', ['media' => $media]);
 217                         }
 218                         if (!empty($media['preview'])) {
 219                                 $imagedata = Images::getInfoFromURLCached($media['preview']);
 220                                 if ($imagedata) {
 221                                         $media['preview-width'] = $imagedata[0];
 222                                         $media['preview-height'] = $imagedata[1];
 223                                 }
 224                         }
 225                 }
 226
 227                 if ($media['type'] != self::DOCUMENT) {
 228                         $media = self::addType($media);
 229                 }
 230
 231                 if (in_array($media['type'], [self::TEXT, self::APPLICATION, self::HTML, self::XML, self::PLAIN])) {
 232                         $media = self::addActivity($media);
 233                 }
 234
 235                 if (in_array($media['type'], [self::TEXT, self::APPLICATION, self::HTML, self::XML, self::PLAIN])) {
 236                         $media = self::addAccount($media);
 237                 }
 238
 239                 if ($media['type'] == self::HTML) {
 240                         $media = self::addPage($media);
 241                 }
 242
 243                 return $media;
 244         }
 245
 246         /**
 247          * Adds the activity type if the media entry is linked to an activity
 248          *
 249          * @param array $media
 250          * @return array
 251          */
 252         private static function addActivity(array $media): array
 253         {
 254                 $id = Item::fetchByLink($media['url']);
 255                 if (empty($id)) {
 256                         return $media;
 257                 }
 258
 259                 $item = Post::selectFirst([], ['id' => $id, 'network' => Protocol::FEDERATED]);
 260                 if (empty($item['id'])) {
 261                         Logger::debug('Not a federated activity', ['id' => $id, 'uri-id' => $media['uri-id'], 'url' => $media['url']]);
 262                         return $media;
 263                 }
 264
 265                 if (!empty($item['plink']) && Strings::compareLink($item['plink'], $media['url']) &&
 266                         parse_url($item['plink'], PHP_URL_HOST) != parse_url($item['uri'], PHP_URL_HOST)) {
 267                         Logger::debug('Not a link to an activity', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'plink' => $item['plink'], 'uri' => $item['uri']]);
 268                         return $media;
 269                 }
 270
 271                 if (in_array($item['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN])) {
 272                         $media['mimetype'] = 'application/activity+json';
 273                 } elseif ($item['network'] == Protocol::DIASPORA) {
 274                         $media['mimetype'] = 'application/xml';
 275                 }
 276
 277                 $contact = Contact::getById($item['author-id'], ['avatar', 'gsid']);
 278                 if (!empty($contact['gsid'])) {
 279                         $gserver = DBA::selectFirst('gserver', ['url', 'site_name'], ['id' => $contact['gsid']]);
 280                 }
 281
 282                 $media['type'] = self::ACTIVITY;
 283                 $media['media-uri-id'] = $item['uri-id'];
 284                 $media['height'] = null;
 285                 $media['width'] = null;
 286                 $media['preview'] = null;
 287                 $media['preview-height'] = null;
 288                 $media['preview-width'] = null;
 289                 $media['blurhash'] = null;
 290                 $media['description'] = $item['body'];
 291                 $media['name'] = $item['title'];
 292                 $media['author-url'] = $item['author-link'];
 293                 $media['author-name'] = $item['author-name'];
 294                 $media['author-image'] = $contact['avatar'] ?? $item['author-avatar'];
 295                 $media['publisher-url'] = $gserver['url'] ?? null;
 296                 $media['publisher-name'] = $gserver['site_name'] ?? null;
 297                 $media['publisher-image'] = null;
 298
 299                 Logger::debug('Activity detected', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'plink' => $item['plink'], 'uri' => $item['uri']]);
 300                 return $media;
 301         }
 302
 303         /**
 304          * Adds the account type if the media entry is linked to an account
 305          *
 306          * @param array $media
 307          * @return array
 308          */
 309         private static function addAccount(array $media): array
 310         {
 311                 $contact = Contact::getByURL($media['url'], false);
 312                 if (empty($contact) || ($contact['network'] == Protocol::PHANTOM)) {
 313                         return $media;
 314                 }
 315
 316                 if (in_array($contact['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN])) {
 317                         $media['mimetype'] = 'application/activity+json';
 318                 }
 319
 320                 if (!empty($contact['gsid'])) {
 321                         $gserver = DBA::selectFirst('gserver', ['url', 'site_name'], ['id' => $contact['gsid']]);
 322                 }
 323
 324                 $media['type'] = self::ACCOUNT;
 325                 $media['media-uri-id'] = $contact['uri-id'];
 326                 $media['height'] = null;
 327                 $media['width'] = null;
 328                 $media['preview'] = null;
 329                 $media['preview-height'] = null;
 330                 $media['preview-width'] = null;
 331                 $media['blurhash'] = null;
 332                 $media['description'] = $contact['about'];
 333                 $media['name'] = $contact['name'];
 334                 $media['author-url'] = $contact['url'];
 335                 $media['author-name'] = $contact['name'];
 336                 $media['author-image'] = $contact['avatar'];
 337                 $media['publisher-url'] = $gserver['url'] ?? null;
 338                 $media['publisher-name'] = $gserver['site_name'] ?? null;
 339                 $media['publisher-image'] = null;
 340
 341                 Logger::debug('Account detected', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'uri' => $contact['url']]);
 342                 return $media;
 343         }
 344
 345         /**
 346          * Add page infos for HTML entries
 347          *
 348          * @param array $media
 349          * @return array
 350          */
 351         private static function addPage(array $media): array
 352         {
 353                 $data = ParseUrl::getSiteinfoCached($media['url'], false);
 354                 $media['preview'] = $data['images'][0]['src'] ?? null;
 355                 $media['preview-height'] = $data['images'][0]['height'] ?? null;
 356                 $media['preview-width'] = $data['images'][0]['width'] ?? null;
 357                 $media['blurhash'] = $data['images'][0]['blurhash'] ?? null;
 358                 $media['description'] = $data['text'] ?? null;
 359                 $media['name'] = $data['title'] ?? null;
 360                 $media['author-url'] = $data['author_url'] ?? null;
 361                 $media['author-name'] = $data['author_name'] ?? null;
 362                 $media['author-image'] = $data['author_img'] ?? null;
 363                 $media['publisher-url'] = $data['publisher_url'] ?? null;
 364                 $media['publisher-name'] = $data['publisher_name'] ?? null;
 365                 $media['publisher-image'] = $data['publisher_img'] ?? null;
 366
 367                 return $media;
 368         }
 369
 370         /**
 371          * Fetch media data from local resources
 372          * @param array $media
 373          * @return array media with added data
 374          */
 375         private static function fetchLocalData(array $media): array
 376         {
 377                 if (!preg_match('|.*?/photo/(.*[a-fA-F0-9])\-(.*[0-9])\..*[\w]|', $media['url'] ?? '', $matches)) {
 378                         return $media;
 379                 }
 380                 $photo = Photo::selectFirst([], ['resource-id' => $matches[1], 'scale' => $matches[2]]);
 381                 if (!empty($photo)) {
 382                         $media['mimetype'] = $photo['type'];
 383                         $media['size'] = $photo['datasize'];
 384                         $media['width'] = $photo['width'];
 385                         $media['height'] = $photo['height'];
 386                         $media['blurhash'] = $photo['blurhash'];
 387                 }
 388
 389                 if (!preg_match('|.*?/photo/(.*[a-fA-F0-9])\-(.*[0-9])\..*[\w]|', $media['preview'] ?? '', $matches)) {
 390                         return $media;
 391                 }
 392                 $photo = Photo::selectFirst([], ['resource-id' => $matches[1], 'scale' => $matches[2]]);
 393                 if (!empty($photo)) {
 394                         $media['preview-width'] = $photo['width'];
 395                         $media['preview-height'] = $photo['height'];
 396                 }
 397
 398                 return $media;
 399         }
 400
 401         /**
 402          * Add the detected type to the media array
 403          *
 404          * @param array $data
 405          * @return array data array with the detected type
 406          */
 407         public static function addType(array $data): array
 408         {
 409                 if (empty($data['mimetype'])) {
 410                         Logger::info('No MimeType provided', ['media' => $data]);
 411                         return $data;
 412                 }
 413
 414                 $type = explode('/', current(explode(';', $data['mimetype'])));
 415                 if (count($type) < 2) {
 416                         Logger::info('Unknown MimeType', ['type' => $type, 'media' => $data]);
 417                         $data['type'] = self::UNKNOWN;
 418                         return $data;
 419                 }
 420
 421                 $filetype = strtolower($type[0]);
 422                 $subtype = strtolower($type[1]);
 423
 424                 if ($filetype == 'image') {
 425                         $data['type'] = self::IMAGE;
 426                 } elseif ($filetype == 'video') {
 427                         $data['type'] = self::VIDEO;
 428                 } elseif ($filetype == 'audio') {
 429                         $data['type'] = self::AUDIO;
 430                 } elseif (($filetype == 'text') && ($subtype == 'html')) {
 431                         $data['type'] = self::HTML;
 432                 } elseif (($filetype == 'text') && ($subtype == 'xml')) {
 433                         $data['type'] = self::XML;
 434                 } elseif (($filetype == 'text') && ($subtype == 'plain')) {
 435                         $data['type'] = self::PLAIN;
 436                 } elseif ($filetype == 'text') {
 437                         $data['type'] = self::TEXT;
 438                 } elseif (($filetype == 'application') && ($subtype == 'x-bittorrent')) {
 439                         $data['type'] = self::TORRENT;
 440                 } elseif ($filetype == 'application') {
 441                         $data['type'] = self::APPLICATION;
 442                 } else {
 443                         $data['type'] = self::UNKNOWN;
 444                         Logger::info('Unknown type', ['filetype' => $filetype, 'subtype' => $subtype, 'media' => $data]);
 445                         return $data;
 446                 }
 447
 448                 Logger::debug('Detected type', ['filetype' => $filetype, 'subtype' => $subtype, 'media' => $data]);
 449                 return $data;
 450         }
 451
 452         /**
 453          * Tests for path patterns that are usef for picture links in Friendica
 454          *
 455          * @param string $page    Link to the image page
 456          * @param string $preview Preview picture
 457          * @return boolean
 458          */
 459         private static function isPictureLink(string $page, string $preview): bool
 460         {
 461                 return preg_match('#/photos/.*/image/#ism', $page) && preg_match('#/photo/.*-1\.#ism', $preview);
 462         }
 463
 464         /**
 465          * Add media links and remove them from the body
 466          *
 467          * @param integer $uriid
 468          * @param string $body
 469          * @return string Body without media links
 470          */
 471         public static function insertFromBody(int $uriid, string $body, bool $endmatch = false): string
 472         {
 473                 $endmatchpattern = $endmatch ? '\z' : '';
 474                 // Simplify image codes
 475                 $unshared_body = $body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]$endmatchpattern/ism", '[img]$3[/img]', $body);
 476
 477                 $attachments = [];
 478                 if (preg_match_all("#\[url=([^\]]+?)\]\s*\[img=([^\[\]]*)\]([^\[\]]*)\[\/img\]\s*\[/url\]$endmatchpattern#ism", $body, $pictures, PREG_SET_ORDER)) {
 479                         foreach ($pictures as $picture) {
 480                                 if (!self::isPictureLink($picture[1], $picture[2])) {
 481                                         continue;
 482                                 }
 483                                 $body = str_replace($picture[0], '', $body);
 484                                 $image = str_replace('-1.', '-0.', $picture[2]);
 485                                 $attachments[$image] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $image,
 486                                         'preview' => $picture[2], 'description' => $picture[3]];
 487                         }
 488                 }
 489
 490                 if (preg_match_all("/\[img=([^\[\]]*)\]([^\[\]]*)\[\/img\]$endmatchpattern/Usi", $body, $pictures, PREG_SET_ORDER)) {
 491                         foreach ($pictures as $picture) {
 492                                 $body = str_replace($picture[0], '', $body);
 493                                 $attachments[$picture[1]] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $picture[1], 'description' => $picture[2]];
 494                         }
 495                 }
 496
 497                 if (preg_match_all("#\[url=([^\]]+?)\]\s*\[img\]([^\[]+?)\[/img\]\s*\[/url\]$endmatchpattern#ism", $body, $pictures, PREG_SET_ORDER)) {
 498                         foreach ($pictures as $picture) {
 499                                 if (!self::isPictureLink($picture[1], $picture[2])) {
 500                                         continue;
 501                                 }
 502                                 $body = str_replace($picture[0], '', $body);
 503                                 $image = str_replace('-1.', '-0.', $picture[2]);
 504                                 $attachments[$image] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $image,
 505                                         'preview' => $picture[2], 'description' => null];
 506                         }
 507                 }
 508
 509                 if (preg_match_all("/\[img\]([^\[\]]*)\[\/img\]$endmatchpattern/ism", $body, $pictures, PREG_SET_ORDER)) {
 510                         foreach ($pictures as $picture) {
 511                                 $body = str_replace($picture[0], '', $body);
 512                                 $attachments[$picture[1]] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $picture[1]];
 513                         }
 514                 }
 515
 516                 if (preg_match_all("/\[audio\]([^\[\]]*)\[\/audio\]$endmatchpattern/ism", $body, $audios, PREG_SET_ORDER)) {
 517                         foreach ($audios as $audio) {
 518                                 $body = str_replace($audio[0], '', $body);
 519                                 $attachments[$audio[1]] = ['uri-id' => $uriid, 'type' => self::AUDIO, 'url' => $audio[1]];
 520                         }
 521                 }
 522
 523                 if (preg_match_all("/\[video\]([^\[\]]*)\[\/video\]$endmatchpattern/ism", $body, $videos, PREG_SET_ORDER)) {
 524                         foreach ($videos as $video) {
 525                                 $body = str_replace($video[0], '', $body);
 526                                 $attachments[$video[1]] = ['uri-id' => $uriid, 'type' => self::VIDEO, 'url' => $video[1]];
 527                         }
 528                 }
 529
 530                 if ($uriid != 0) {
 531                         foreach ($attachments as $attachment) {
 532                                 if (Post\Link::exists($uriid, $attachment['preview'] ?? $attachment['url'])) {
 533                                         continue;
 534                                 }
 535
 536                                 // Only store attachments that are part of the unshared body
 537                                 if (Item::containsLink($unshared_body, $attachment['preview'] ?? $attachment['url'], $attachment['type'])) {
 538                                         self::insert($attachment);
 539                                 }
 540                         }
 541                 }
 542
 543                 return trim($body);
 544         }
 545
 546         /**
 547          * Remove media that is at the end of the body
 548          *
 549          * @param string $body
 550          * @return string
 551          */
 552         public static function removeFromEndOfBody(string $body): string
 553         {
 554                 do {
 555                         $prebody = $body;
 556                         $body = self::insertFromBody(0, $body, true);
 557                 } while ($prebody != $body);
 558                 return $body;
 559         }
 560
 561         /**
 562          * Add media links from a relevant url in the body
 563          *
 564          * @param integer $uriid
 565          * @param string $body
 566          * @return void
 567          */
 568         public static function insertFromRelevantUrl(int $uriid, string $body, string $fullbody, string $network)
 569         {
 570                 // Remove all hashtags and mentions
 571                 $body = preg_replace("/([#@!])\[url\=(.*?)\](.*?)\[\/url\]/ism", '', $body);
 572
 573                 // Search for pure links
 574                 if (preg_match_all("/\[url\](https?:.*?)\[\/url\]/ism", $body, $matches)) {
 575                         foreach ($matches[1] as $url) {
 576                                 Logger::info('Got page url (link without description)', ['uri-id' => $uriid, 'url' => $url]);
 577                                 $result = self::insert(['uri-id' => $uriid, 'type' => self::UNKNOWN, 'url' => $url], false, $network);
 578                                 if ($result && ($network == Protocol::DFRN)) {
 579                                         self::revertHTMLType($uriid, $url, $fullbody);
 580                                         Logger::debug('Revert HTML type', ['uri-id' => $uriid, 'url' => $url]);
 581                                 } elseif ($result) {
 582                                         Logger::debug('Media had been added', ['uri-id' => $uriid, 'url' => $url]);
 583                                 } else {
 584                                         Logger::debug('Media had not been added', ['uri-id' => $uriid, 'url' => $url]);
 585                                 }
 586                         }
 587                 }
 588
 589                 // Search for links with descriptions
 590                 if (preg_match_all("/\[url\=(https?:.*?)\].*?\[\/url\]/ism", $body, $matches)) {
 591                         foreach ($matches[1] as $url) {
 592                                 Logger::info('Got page url (link with description)', ['uri-id' => $uriid, 'url' => $url]);
 593                                 $result = self::insert(['uri-id' => $uriid, 'type' => self::UNKNOWN, 'url' => $url], false, $network);
 594                                 if ($result && ($network == Protocol::DFRN)) {
 595                                         self::revertHTMLType($uriid, $url, $fullbody);
 596                                         Logger::debug('Revert HTML type', ['uri-id' => $uriid, 'url' => $url]);
 597                                 } elseif ($result) {
 598                                         Logger::debug('Media has been added', ['uri-id' => $uriid, 'url' => $url]);
 599                                 } else {
 600                                         Logger::debug('Media has not been added', ['uri-id' => $uriid, 'url' => $url]);
 601                                 }
 602                         }
 603                 }
 604         }
 605
 606         /**
 607          * Revert the media type of links to UNKNOWN for DFRN posts when they aren't attached
 608          *
 609          * @param integer $uriid
 610          * @param string $url
 611          * @param string $body
 612          * @return void
 613          */
 614         private static function revertHTMLType(int $uriid, string $url, string $body)
 615         {
 616                 $attachment = BBCode::getAttachmentData($body);
 617                 if (!empty($attachment['url']) && Network::getUrlMatch($attachment['url'], $url)) {
 618                         return;
 619                 }
 620                 DBA::update('post-media', ['type' => self::UNKNOWN], ['uri-id' => $uriid, 'type' => self::HTML, 'url' => $url]);
 621         }
 622
 623         /**
 624          * Add media links from the attachment field
 625          *
 626          * @param integer $uriid
 627          * @param string $body
 628          * @return void
 629          */
 630         public static function insertFromAttachmentData(int $uriid, string $body)
 631         {
 632                 $data = BBCode::getAttachmentData($body);
 633                 if (empty($data))  {
 634                         return;
 635                 }
 636
 637                 Logger::info('Adding attachment data', ['data' => $data]);
 638                 $attachment = [
 639                         'uri-id' => $uriid,
 640                         'type' => self::HTML,
 641                         'url' => $data['url'],
 642                         'preview' => $data['preview'] ?? null,
 643                         'description' => $data['description'] ?? null,
 644                         'name' => $data['title'] ?? null,
 645                         'author-url' => $data['author_url'] ?? null,
 646                         'author-name' => $data['author_name'] ?? null,
 647                         'publisher-url' => $data['provider_url'] ?? null,
 648                         'publisher-name' => $data['provider_name'] ?? null,
 649                 ];
 650                 if (!empty($data['image'])) {
 651                         $attachment['preview'] = $data['image'];
 652                 }
 653                 self::insert($attachment);
 654         }
 655
 656         /**
 657          * Add media links from the attach field
 658          *
 659          * @param integer $uriid
 660          * @param string $attach
 661          * @return void
 662          */
 663         public static function insertFromAttachment(int $uriid, string $attach)
 664         {
 665                 if (!preg_match_all('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\"(?: title=\"(.*?)\")?|', $attach, $matches, PREG_SET_ORDER)) {
 666                         return;
 667                 }
 668
 669                 foreach ($matches as $attachment) {
 670                         $media['type'] = self::DOCUMENT;
 671                         $media['uri-id'] = $uriid;
 672                         $media['url'] = $attachment[1];
 673                         $media['size'] = $attachment[2];
 674                         $media['mimetype'] = $attachment[3];
 675                         $media['description'] = $attachment[4] ?? '';
 676
 677                         self::insert($media);
 678                 }
 679         }
 680
 681         /**
 682          * Retrieves the media attachments associated with the provided item ID.
 683          *
 684          * @param int $uri_id URI id
 685          * @param array $types Media types
 686          * @return array|bool Array on success, false on error
 687          * @throws \Exception
 688          */
 689         public static function getByURIId(int $uri_id, array $types = [])
 690         {
 691                 $condition = ["`uri-id` = ? AND `type` != ?", $uri_id, self::UNKNOWN];
 692
 693                 if (!empty($types)) {
 694                         $condition = DBA::mergeConditions($condition, ['type' => $types]);
 695                 }
 696
 697                 return DBA::selectToArray('post-media', [], $condition, ['order' => ['id']]);
 698         }
 699
 700         /**
 701          * Checks if media attachments are associated with the provided item ID.
 702          *
 703          * @param int $uri_id URI id
 704          * @param array $types Media types
 705          * @return bool Whether media attachment exists
 706          * @throws \Exception
 707          */
 708         public static function existsByURIId(int $uri_id, array $types = []): bool
 709         {
 710                 $condition = ["`uri-id` = ? AND `type` != ?", $uri_id, self::UNKNOWN];
 711
 712                 if (!empty($types)) {
 713                         $condition = DBA::mergeConditions($condition, ['type' => $types]);
 714                 }
 715
 716                 return DBA::exists('post-media', $condition);
 717         }
 718
 719         /**
 720          * Delete media by uri-id and media type
 721          *
 722          * @param int $uri_id URI id
 723          * @param array $types Media types
 724          * @return bool Whether media attachment exists
 725          * @throws \Exception
 726          */
 727         public static function deleteByURIId(int $uri_id, array $types = []): bool
 728         {
 729                 $condition = ['uri-id' => $uri_id];
 730
 731                 if (!empty($types)) {
 732                         $condition = DBA::mergeConditions($condition, ['type' => $types]);
 733                 }
 734
 735                 return DBA::delete('post-media', $condition);
 736         }
 737
 738         /**
 739          * Split the attachment media in the three segments "visual", "link" and "additional"
 740          *
 741          * @param int    $uri_id URI id
 742          * @param array  $links list of links that shouldn't be added
 743          * @param bool   $has_media
 744          * @return array attachments
 745          */
 746         public static function splitAttachments(int $uri_id, array $links = [], bool $has_media = true): array
 747         {
 748                 $attachments = ['visual' => [], 'link' => [], 'additional' => []];
 749
 750                 if (!$has_media) {
 751                         return $attachments;
 752                 }
 753
 754                 $media = self::getByURIId($uri_id);
 755                 if (empty($media)) {
 756                         return $attachments;
 757                 }
 758
 759                 $heights = [];
 760                 $selected = '';
 761                 $previews = [];
 762
 763                 foreach ($media as $medium) {
 764                         foreach ($links as $link) {
 765                                 if (Strings::compareLink($link, $medium['url'])) {
 766                                         continue 2;
 767                                 }
 768                         }
 769
 770                         // Avoid adding separate media entries for previews
 771                         foreach ($previews as $preview) {
 772                                 if (Strings::compareLink($preview, $medium['url'])) {
 773                                         continue 2;
 774                                 }
 775                         }
 776
 777                         // Currently these two types are ignored here.
 778                         // Posts are added differently and contacts are not displayed as attachments.
 779                         if (in_array($medium['type'], [self::ACCOUNT, self::ACTIVITY])) {
 780                                 continue;
 781                         }
 782
 783                         if (!empty($medium['preview'])) {
 784                                 $previews[] = $medium['preview'];
 785                         }
 786
 787                         $type = explode('/', explode(';', $medium['mimetype'] ?? '')[0]);
 788                         if (count($type) < 2) {
 789                                 Logger::info('Unknown MimeType', ['type' => $type, 'media' => $medium]);
 790                                 $filetype = 'unkn';
 791                                 $subtype = 'unkn';
 792                         } else {
 793                                 $filetype = strtolower($type[0]);
 794                                 $subtype = strtolower($type[1]);
 795                         }
 796
 797                         $medium['filetype'] = $filetype;
 798                         $medium['subtype'] = $subtype;
 799
 800                         if ($medium['type'] == self::HTML || (($filetype == 'text') && ($subtype == 'html'))) {
 801                                 $attachments['link'][] = $medium;
 802                                 continue;
 803                         }
 804
 805                         if (in_array($medium['type'], [self::AUDIO, self::IMAGE]) ||
 806                                 in_array($filetype, ['audio', 'image'])) {
 807                                 $attachments['visual'][] = $medium;
 808                         } elseif (($medium['type'] == self::VIDEO) || ($filetype == 'video')) {
 809                                 if (!empty($medium['height'])) {
 810                                         // Peertube videos are delivered in many different resolutions. We pick a moderate one.
 811                                         // Since only Peertube provides a "height" parameter, this wouldn't be executed
 812                                         // when someone for example on Mastodon was sharing multiple videos in a single post.
 813                                         $heights[$medium['height']] = $medium['url'];
 814                                         $video[$medium['url']] = $medium;
 815                                 } else {
 816                                         $attachments['visual'][] = $medium;
 817                                 }
 818                         } else {
 819                                 $attachments['additional'][] = $medium;
 820                         }
 821                 }
 822
 823                 if (!empty($heights)) {
 824                         ksort($heights);
 825                         foreach ($heights as $height => $url) {
 826                                 if (empty($selected) || $height <= 480) {
 827                                         $selected = $url;
 828                                 }
 829                         }
 830
 831                         if (!empty($selected)) {
 832                                 $attachments['visual'][] = $video[$selected];
 833                                 unset($video[$selected]);
 834                                 foreach ($video as $element) {
 835                                         $attachments['additional'][] = $element;
 836                                 }
 837                         }
 838                 }
 839
 840                 return $attachments;
 841         }
 842
 843         /**
 844          * Add media attachments to the body
 845          *
 846          * @param int    $uriid
 847          * @param string $body
 848          * @param array  $types
 849          *
 850          * @return string body
 851          */
 852         public static function addAttachmentsToBody(int $uriid, string $body = '', array $types = [self::IMAGE, self::AUDIO, self::VIDEO]): string
 853         {
 854                 if (empty($body)) {
 855                         $item = Post::selectFirst(['body'], ['uri-id' => $uriid]);
 856                         if (!DBA::isResult($item)) {
 857                                 return '';
 858                         }
 859                         $body = $item['body'];
 860                 }
 861                 $original_body = $body;
 862
 863                 $body = BBCode::removeAttachment($body);
 864
 865                 foreach (self::getByURIId($uriid, $types) as $media) {
 866                         if (Item::containsLink($body, $media['preview'] ?? $media['url'], $media['type'])) {
 867                                 continue;
 868                         }
 869
 870                         if ($media['type'] == self::IMAGE) {
 871                                 if (!empty($media['preview'])) {
 872                                         if (!empty($media['description'])) {
 873                                                 $body .= "\n[url=" . $media['url'] . "][img=" . $media['preview'] . ']' . $media['description'] .'[/img][/url]';
 874                                         } else {
 875                                                 $body .= "\n[url=" . $media['url'] . "][img]" . $media['preview'] .'[/img][/url]';
 876                                         }
 877                                 } else {
 878                                         if (!empty($media['description'])) {
 879                                                 $body .= "\n[img=" . $media['url'] . ']' . $media['description'] .'[/img]';
 880                                         } else {
 881                                                 $body .= "\n[img]" . $media['url'] .'[/img]';
 882                                         }
 883                                 }
 884                         } elseif ($media['type'] == self::AUDIO) {
 885                                 $body .= "\n[audio]" . $media['url'] . "[/audio]\n";
 886                         } elseif ($media['type'] == self::VIDEO) {
 887                                 $body .= "\n[video]" . $media['url'] . "[/video]\n";
 888                         }
 889                 }
 890
 891                 if (preg_match("/.*(\[attachment.*?\].*?\[\/attachment\]).*/ism", $original_body, $match)) {
 892                         $body .= "\n" . $match[1];
 893                 }
 894
 895                 return $body;
 896         }
 897
 898         /**
 899          * Get preview link for given media id
 900          *
 901          * @param integer $id   media id
 902          * @param string  $size One of the Proxy::SIZE_* constants
 903          * @return string preview link
 904          */
 905         public static function getPreviewUrlForId(int $id, string $size = ''): string
 906         {
 907                 $url = DI::baseUrl() . '/photo/preview/';
 908                 switch ($size) {
 909                         case Proxy::SIZE_MICRO:
 910                                 $url .= Proxy::PIXEL_MICRO . '/';
 911                                 break;
 912                         case Proxy::SIZE_THUMB:
 913                                 $url .= Proxy::PIXEL_THUMB . '/';
 914                                 break;
 915                         case Proxy::SIZE_SMALL:
 916                                 $url .= Proxy::PIXEL_SMALL . '/';
 917                                 break;
 918                         case Proxy::SIZE_MEDIUM:
 919                                 $url .= Proxy::PIXEL_MEDIUM . '/';
 920                                 break;
 921                         case Proxy::SIZE_LARGE:
 922                                 $url .= Proxy::PIXEL_LARGE . '/';
 923                                 break;
 924                 }
 925                 return $url . $id;
 926         }
 927
 928         /**
 929          * Get media link for given media id
 930          *
 931          * @param integer $id   media id
 932          * @param string  $size One of the Proxy::SIZE_* constants
 933          * @return string media link
 934          */
 935         public static function getUrlForId(int $id, string $size = ''): string
 936         {
 937                 $url = DI::baseUrl() . '/photo/media/';
 938                 switch ($size) {
 939                         case Proxy::SIZE_MICRO:
 940                                 $url .= Proxy::PIXEL_MICRO . '/';
 941                                 break;
 942                         case Proxy::SIZE_THUMB:
 943                                 $url .= Proxy::PIXEL_THUMB . '/';
 944                                 break;
 945                         case Proxy::SIZE_SMALL:
 946                                 $url .= Proxy::PIXEL_SMALL . '/';
 947                                 break;
 948                         case Proxy::SIZE_MEDIUM:
 949                                 $url .= Proxy::PIXEL_MEDIUM . '/';
 950                                 break;
 951                         case Proxy::SIZE_LARGE:
 952                                 $url .= Proxy::PIXEL_LARGE . '/';
 953                                 break;
 954                 }
 955                 return $url . $id;
 956         }
 957 }