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\PageInfo;
  25 use Friendica\Content\Text\BBCode;
  26 use Friendica\Core\Logger;
  27 use Friendica\Core\Protocol;
  28 use Friendica\Core\System;
  29 use Friendica\Database\Database;
  30 use Friendica\Database\DBA;
  31 use Friendica\DI;
  32 use Friendica\Model\Contact;
  33 use Friendica\Model\Item;
  34 use Friendica\Model\ItemURI;
  35 use Friendica\Model\Photo;
  36 use Friendica\Model\Post;
  37 use Friendica\Network\HTTPClient\Client\HttpClientAccept;
  38 use Friendica\Network\HTTPClient\Client\HttpClientOptions;
  39 use Friendica\Util\Images;
  40 use Friendica\Util\Network;
  41 use Friendica\Util\ParseUrl;
  42 use Friendica\Util\Proxy;
  43 use Friendica\Util\Strings;
  44
  45 /**
  46  * Class Media
  47  *
  48  * This Model class handles media interactions.
  49  * This tables stores medias (images, videos, audio files) related to posts.
  50  */
  51 class Media
  52 {
  53         const UNKNOWN     = 0;
  54         const IMAGE       = 1;
  55         const VIDEO       = 2;
  56         const AUDIO       = 3;
  57         const TEXT        = 4;
  58         const APPLICATION = 5;
  59         const TORRENT     = 16;
  60         const HTML        = 17;
  61         const XML         = 18;
  62         const PLAIN       = 19;
  63         const ACTIVITY    = 20;
  64         const ACCOUNT     = 21;
  65         const DOCUMENT    = 128;
  66
  67         /**
  68          * Insert a post-media record
  69          *
  70          * @param array $media
  71          * @param bool  $force
  72          * @return bool
  73          */
  74         public static function insert(array $media, bool $force = false): bool
  75         {
  76                 if (empty($media['url']) || empty($media['uri-id']) || !isset($media['type'])) {
  77                         Logger::warning('Incomplete media data', ['media' => $media]);
  78                         return false;
  79                 }
  80
  81                 if (DBA::exists('post-media', ['uri-id' => $media['uri-id'], 'preview' => $media['url']])) {
  82                         Logger::info('Media already exists as preview', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'callstack' => System::callstack()]);
  83                         return false;
  84                 }
  85
  86                 // "document" has got the lowest priority. So when the same file is both attached as document
  87                 // and embedded as picture then we only store the picture or replace the document
  88                 $found = DBA::selectFirst('post-media', ['type'], ['uri-id' => $media['uri-id'], 'url' => $media['url']]);
  89                 if (!$force && !empty($found) && (($found['type'] != self::DOCUMENT) || ($media['type'] == self::DOCUMENT))) {
  90                         Logger::info('Media already exists', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'callstack' => System::callstack()]);
  91                         return false;
  92                 }
  93
  94                 if (!ItemURI::exists($media['uri-id'])) {
  95                         Logger::info('Media referenced URI ID not found', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'callstack' => System::callstack()]);
  96                         return false;
  97                 }
  98
  99                 $media = self::unsetEmptyFields($media);
 100                 $media = DI::dbaDefinition()->truncateFieldsForTable('post-media', $media);
 101
 102                 // We are storing as fast as possible to avoid duplicated network requests
 103                 // when fetching additional information for pictures and other content.
 104                 $result = DBA::insert('post-media', $media, Database::INSERT_UPDATE);
 105                 Logger::info('Stored media', ['result' => $result, 'media' => $media, 'callstack' => System::callstack()]);
 106                 $stored = $media;
 107
 108                 $media = self::fetchAdditionalData($media);
 109                 $media = self::unsetEmptyFields($media);
 110                 $media = DI::dbaDefinition()->truncateFieldsForTable('post-media', $media);
 111
 112                 if (array_diff_assoc($media, $stored)) {
 113                         $result = DBA::insert('post-media', $media, Database::INSERT_UPDATE);
 114                         Logger::info('Updated media', ['result' => $result, 'media' => $media]);
 115                 } else {
 116                         Logger::info('Nothing to update', ['media' => $media]);
 117                 }
 118                 return $result;
 119         }
 120
 121         /**
 122          * Remove empty media fields
 123          *
 124          * @param array $media
 125          * @return array cleaned media array
 126          */
 127         private static function unsetEmptyFields(array $media): array
 128         {
 129                 $fields = ['mimetype', 'height', 'width', 'size', 'preview', 'preview-height', 'preview-width', 'blurhash', 'description'];
 130                 foreach ($fields as $field) {
 131                         if (empty($media[$field])) {
 132                                 unset($media[$field]);
 133                         }
 134                 }
 135                 return $media;
 136         }
 137
 138         /**
 139          * Copy attachments from one uri-id to another
 140          *
 141          * @param integer $from_uri_id
 142          * @param integer $to_uri_id
 143          * @return void
 144          */
 145         public static function copy(int $from_uri_id, int $to_uri_id)
 146         {
 147                 $attachments = self::getByURIId($from_uri_id);
 148                 foreach ($attachments as $attachment) {
 149                         $attachment['uri-id'] = $to_uri_id;
 150                         self::insert($attachment);
 151                 }
 152         }
 153
 154         /**
 155          * Creates the "[attach]" element from the given attributes
 156          *
 157          * @param string $href
 158          * @param integer $length
 159          * @param string $type
 160          * @param string $title
 161          * @return string "[attach]" element
 162          */
 163         public static function getAttachElement(string $href, int $length, string $type, string $title = ''): string
 164         {
 165                 $media = self::fetchAdditionalData([
 166                         'type' => self::DOCUMENT, 'url' => $href,
 167                         'size' => $length, 'mimetype' => $type, 'description' => $title
 168                 ]);
 169
 170                 return '[attach]href="' . $media['url'] . '" length="' . $media['size'] .
 171                         '" type="' . $media['mimetype'] . '" title="' . $media['description'] . '"[/attach]';
 172         }
 173
 174         /**
 175          * Fetch additional data for the provided media array
 176          *
 177          * @param array $media
 178          * @return array media array with additional data
 179          */
 180         public static function fetchAdditionalData(array $media): array
 181         {
 182                 if (Network::isLocalLink($media['url'])) {
 183                         $media = self::fetchLocalData($media);
 184                 }
 185
 186                 // Fetch the mimetype or size if missing.
 187                 if (Network::isValidHttpUrl($media['url']) && (empty($media['mimetype']) || empty($media['size']))) {
 188                         $timeout = DI::config()->get('system', 'xrd_timeout');
 189                         $curlResult = DI::httpClient()->head($media['url'], [HttpClientOptions::TIMEOUT => $timeout]);
 190
 191                         // Workaround for systems that can't handle a HEAD request
 192                         if (!$curlResult->isSuccess() && ($curlResult->getReturnCode() == 405)) {
 193                                 $curlResult = DI::httpClient()->get($media['url'], HttpClientAccept::DEFAULT, [HttpClientOptions::TIMEOUT => $timeout]);
 194                         }
 195
 196                         if ($curlResult->isSuccess()) {
 197                                 if (empty($media['mimetype'])) {
 198                                         $media['mimetype'] = $curlResult->getHeader('Content-Type')[0] ?? '';
 199                                 }
 200                                 if (empty($media['size'])) {
 201                                         $media['size'] = (int)($curlResult->getHeader('Content-Length')[0] ?? 0);
 202                                 }
 203                         } else {
 204                                 Logger::notice('Could not fetch head', ['media' => $media]);
 205                         }
 206                 }
 207
 208                 $filetype = !empty($media['mimetype']) ? strtolower(current(explode('/', $media['mimetype']))) : '';
 209
 210                 if (($media['type'] == self::IMAGE) || ($filetype == 'image')) {
 211                         $imagedata = Images::getInfoFromURLCached($media['url']);
 212                         if ($imagedata) {
 213                                 $media['mimetype'] = $imagedata['mime'];
 214                                 $media['size'] = $imagedata['size'];
 215                                 $media['width'] = $imagedata[0];
 216                                 $media['height'] = $imagedata[1];
 217                                 $media['blurhash'] = $imagedata['blurhash'] ?? null;
 218                         } else {
 219                                 Logger::notice('No image data', ['media' => $media]);
 220                         }
 221                         if (!empty($media['preview'])) {
 222                                 $imagedata = Images::getInfoFromURLCached($media['preview']);
 223                                 if ($imagedata) {
 224                                         $media['preview-width'] = $imagedata[0];
 225                                         $media['preview-height'] = $imagedata[1];
 226                                 }
 227                         }
 228                 }
 229
 230                 if ($media['type'] != self::DOCUMENT) {
 231                         $media = self::addType($media);
 232                 }
 233
 234                 if (in_array($media['type'], [self::TEXT, self::APPLICATION, self::HTML, self::XML, self::PLAIN])) {
 235                         $media = self::addActivity($media);
 236                 }
 237
 238                 if (in_array($media['type'], [self::TEXT, self::APPLICATION, self::HTML, self::XML, self::PLAIN])) {
 239                         $media = self::addAccount($media);
 240                 }
 241
 242                 if ($media['type'] == self::HTML) {
 243                         $media = self::addPage($media);
 244                 }
 245
 246                 return $media;
 247         }
 248
 249         /**
 250          * Adds the activity type if the media entry is linked to an activity
 251          *
 252          * @param array $media
 253          * @return array
 254          */
 255         private static function addActivity(array $media): array
 256         {
 257                 $id = Item::fetchByLink($media['url']);
 258                 if (empty($id)) {
 259                         return $media;
 260                 }
 261
 262                 $item = Post::selectFirst([], ['id' => $id, 'network' => Protocol::FEDERATED]);
 263                 if (empty($item['id'])) {
 264                         Logger::debug('Not a federated activity', ['id' => $id, 'uri-id' => $media['uri-id'], 'url' => $media['url']]);
 265                         return $media;
 266                 }
 267
 268                 if (
 269                         !empty($item['plink']) && Strings::compareLink($item['plink'], $media['url']) &&
 270                         parse_url($item['plink'], PHP_URL_HOST) != parse_url($item['uri'], PHP_URL_HOST)
 271                 ) {
 272                         Logger::debug('Not a link to an activity', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'plink' => $item['plink'], 'uri' => $item['uri']]);
 273                         return $media;
 274                 }
 275
 276                 if (in_array($item['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN])) {
 277                         $media['mimetype'] = 'application/activity+json';
 278                 } elseif ($item['network'] == Protocol::DIASPORA) {
 279                         $media['mimetype'] = 'application/xml';
 280                 }
 281
 282                 $contact = Contact::getById($item['author-id'], ['avatar', 'gsid']);
 283                 if (!empty($contact['gsid'])) {
 284                         $gserver = DBA::selectFirst('gserver', ['url', 'site_name'], ['id' => $contact['gsid']]);
 285                 }
 286
 287                 $media['type'] = self::ACTIVITY;
 288                 $media['media-uri-id'] = $item['uri-id'];
 289                 $media['height'] = null;
 290                 $media['width'] = null;
 291                 $media['preview'] = null;
 292                 $media['preview-height'] = null;
 293                 $media['preview-width'] = null;
 294                 $media['blurhash'] = null;
 295                 $media['description'] = $item['body'];
 296                 $media['name'] = $item['title'];
 297                 $media['author-url'] = $item['author-link'];
 298                 $media['author-name'] = $item['author-name'];
 299                 $media['author-image'] = $contact['avatar'] ?? $item['author-avatar'];
 300                 $media['publisher-url'] = $gserver['url'] ?? null;
 301                 $media['publisher-name'] = $gserver['site_name'] ?? null;
 302                 $media['publisher-image'] = null;
 303
 304                 Logger::debug('Activity detected', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'plink' => $item['plink'], 'uri' => $item['uri']]);
 305                 return $media;
 306         }
 307
 308         /**
 309          * Adds the account type if the media entry is linked to an account
 310          *
 311          * @param array $media
 312          * @return array
 313          */
 314         private static function addAccount(array $media): array
 315         {
 316                 $contact = Contact::getByURL($media['url'], false);
 317                 if (empty($contact) || ($contact['network'] == Protocol::PHANTOM)) {
 318                         return $media;
 319                 }
 320
 321                 if (in_array($contact['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN])) {
 322                         $media['mimetype'] = 'application/activity+json';
 323                 }
 324
 325                 if (!empty($contact['gsid'])) {
 326                         $gserver = DBA::selectFirst('gserver', ['url', 'site_name'], ['id' => $contact['gsid']]);
 327                 }
 328
 329                 $media['type'] = self::ACCOUNT;
 330                 $media['media-uri-id'] = $contact['uri-id'];
 331                 $media['height'] = null;
 332                 $media['width'] = null;
 333                 $media['preview'] = null;
 334                 $media['preview-height'] = null;
 335                 $media['preview-width'] = null;
 336                 $media['blurhash'] = null;
 337                 $media['description'] = $contact['about'];
 338                 $media['name'] = $contact['name'];
 339                 $media['author-url'] = $contact['url'];
 340                 $media['author-name'] = $contact['name'];
 341                 $media['author-image'] = $contact['avatar'];
 342                 $media['publisher-url'] = $gserver['url'] ?? null;
 343                 $media['publisher-name'] = $gserver['site_name'] ?? null;
 344                 $media['publisher-image'] = null;
 345
 346                 Logger::debug('Account detected', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'uri' => $contact['url']]);
 347                 return $media;
 348         }
 349
 350         /**
 351          * Add page infos for HTML entries
 352          *
 353          * @param array $media
 354          * @return array
 355          */
 356         private static function addPage(array $media): array
 357         {
 358                 $data = ParseUrl::getSiteinfoCached($media['url'], false);
 359                 $media['preview'] = $data['images'][0]['src'] ?? null;
 360                 $media['preview-height'] = $data['images'][0]['height'] ?? null;
 361                 $media['preview-width'] = $data['images'][0]['width'] ?? null;
 362                 $media['blurhash'] = $data['images'][0]['blurhash'] ?? null;
 363                 $media['description'] = $data['text'] ?? null;
 364                 $media['name'] = $data['title'] ?? null;
 365                 $media['author-url'] = $data['author_url'] ?? null;
 366                 $media['author-name'] = $data['author_name'] ?? null;
 367                 $media['author-image'] = $data['author_img'] ?? null;
 368                 $media['publisher-url'] = $data['publisher_url'] ?? null;
 369                 $media['publisher-name'] = $data['publisher_name'] ?? null;
 370                 $media['publisher-image'] = $data['publisher_img'] ?? null;
 371
 372                 return $media;
 373         }
 374
 375         /**
 376          * Fetch media data from local resources
 377          * @param array $media
 378          * @return array media with added data
 379          */
 380         private static function fetchLocalData(array $media): array
 381         {
 382                 if (!preg_match('|.*?/photo/(.*[a-fA-F0-9])\-(.*[0-9])\..*[\w]|', $media['url'] ?? '', $matches)) {
 383                         return $media;
 384                 }
 385                 $photo = Photo::selectFirst([], ['resource-id' => $matches[1], 'scale' => $matches[2]]);
 386                 if (!empty($photo)) {
 387                         $media['mimetype'] = $photo['type'];
 388                         $media['size'] = $photo['datasize'];
 389                         $media['width'] = $photo['width'];
 390                         $media['height'] = $photo['height'];
 391                         $media['blurhash'] = $photo['blurhash'];
 392                 }
 393
 394                 if (!preg_match('|.*?/photo/(.*[a-fA-F0-9])\-(.*[0-9])\..*[\w]|', $media['preview'] ?? '', $matches)) {
 395                         return $media;
 396                 }
 397                 $photo = Photo::selectFirst([], ['resource-id' => $matches[1], 'scale' => $matches[2]]);
 398                 if (!empty($photo)) {
 399                         $media['preview-width'] = $photo['width'];
 400                         $media['preview-height'] = $photo['height'];
 401                 }
 402
 403                 return $media;
 404         }
 405
 406         /**
 407          * Add the detected type to the media array
 408          *
 409          * @param array $data
 410          * @return array data array with the detected type
 411          */
 412         public static function addType(array $data): array
 413         {
 414                 if (empty($data['mimetype'])) {
 415                         Logger::info('No MimeType provided', ['media' => $data]);
 416                         return $data;
 417                 }
 418
 419                 $type = explode('/', current(explode(';', $data['mimetype'])));
 420                 if (count($type) < 2) {
 421                         Logger::info('Unknown MimeType', ['type' => $type, 'media' => $data]);
 422                         $data['type'] = self::UNKNOWN;
 423                         return $data;
 424                 }
 425
 426                 $filetype = strtolower($type[0]);
 427                 $subtype = strtolower($type[1]);
 428
 429                 if ($filetype == 'image') {
 430                         $data['type'] = self::IMAGE;
 431                 } elseif ($filetype == 'video') {
 432                         $data['type'] = self::VIDEO;
 433                 } elseif ($filetype == 'audio') {
 434                         $data['type'] = self::AUDIO;
 435                 } elseif (($filetype == 'text') && ($subtype == 'html')) {
 436                         $data['type'] = self::HTML;
 437                 } elseif (($filetype == 'text') && ($subtype == 'xml')) {
 438                         $data['type'] = self::XML;
 439                 } elseif (($filetype == 'text') && ($subtype == 'plain')) {
 440                         $data['type'] = self::PLAIN;
 441                 } elseif ($filetype == 'text') {
 442                         $data['type'] = self::TEXT;
 443                 } elseif (($filetype == 'application') && ($subtype == 'x-bittorrent')) {
 444                         $data['type'] = self::TORRENT;
 445                 } elseif ($filetype == 'application') {
 446                         $data['type'] = self::APPLICATION;
 447                 } else {
 448                         $data['type'] = self::UNKNOWN;
 449                         Logger::info('Unknown type', ['filetype' => $filetype, 'subtype' => $subtype, 'media' => $data]);
 450                         return $data;
 451                 }
 452
 453                 Logger::debug('Detected type', ['filetype' => $filetype, 'subtype' => $subtype, 'media' => $data]);
 454                 return $data;
 455         }
 456
 457         /**
 458          * Tests for path patterns that are usef for picture links in Friendica
 459          *
 460          * @param string $page    Link to the image page
 461          * @param string $preview Preview picture
 462          * @return boolean
 463          */
 464         private static function isPictureLink(string $page, string $preview): bool
 465         {
 466                 return preg_match('#/photos/.*/image/#ism', $page) && preg_match('#/photo/.*-1\.#ism', $preview);
 467         }
 468
 469         /**
 470          * Add media links and remove them from the body
 471          *
 472          * @param integer $uriid
 473          * @param string $body
 474          * @return string Body without media links
 475          */
 476         public static function insertFromBody(int $uriid, string $body, bool $endmatch = false): string
 477         {
 478                 $endmatchpattern = $endmatch ? '\z' : '';
 479                 // Simplify image codes
 480                 $unshared_body = $body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]$endmatchpattern/ism", '[img]$3[/img]', $body);
 481
 482                 $attachments = [];
 483                 if (preg_match_all("#\[url=([^\]]+?)\]\s*\[img=([^\[\]]*)\]([^\[\]]*)\[\/img\]\s*\[/url\]$endmatchpattern#ism", $body, $pictures, PREG_SET_ORDER)) {
 484                         foreach ($pictures as $picture) {
 485                                 if (!self::isPictureLink($picture[1], $picture[2])) {
 486                                         continue;
 487                                 }
 488                                 $body = str_replace($picture[0], '', $body);
 489                                 $image = str_replace('-1.', '-0.', $picture[2]);
 490                                 $attachments[$image] = [
 491                                         'uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $image,
 492                                         'preview' => $picture[2], 'description' => $picture[3]
 493                                 ];
 494                         }
 495                 }
 496
 497                 if (preg_match_all("/\[img=([^\[\]]*)\]([^\[\]]*)\[\/img\]$endmatchpattern/Usi", $body, $pictures, PREG_SET_ORDER)) {
 498                         foreach ($pictures as $picture) {
 499                                 $body = str_replace($picture[0], '', $body);
 500                                 $attachments[$picture[1]] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $picture[1], 'description' => $picture[2]];
 501                         }
 502                 }
 503
 504                 if (preg_match_all("#\[url=([^\]]+?)\]\s*\[img\]([^\[]+?)\[/img\]\s*\[/url\]$endmatchpattern#ism", $body, $pictures, PREG_SET_ORDER)) {
 505                         foreach ($pictures as $picture) {
 506                                 if (!self::isPictureLink($picture[1], $picture[2])) {
 507                                         continue;
 508                                 }
 509                                 $body = str_replace($picture[0], '', $body);
 510                                 $image = str_replace('-1.', '-0.', $picture[2]);
 511                                 $attachments[$image] = [
 512                                         'uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $image,
 513                                         'preview' => $picture[2], 'description' => null
 514                                 ];
 515                         }
 516                 }
 517
 518                 if (preg_match_all("/\[img\]([^\[\]]*)\[\/img\]$endmatchpattern/ism", $body, $pictures, PREG_SET_ORDER)) {
 519                         foreach ($pictures as $picture) {
 520                                 $body = str_replace($picture[0], '', $body);
 521                                 $attachments[$picture[1]] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $picture[1]];
 522                         }
 523                 }
 524
 525                 if (preg_match_all("/\[audio\]([^\[\]]*)\[\/audio\]$endmatchpattern/ism", $body, $audios, PREG_SET_ORDER)) {
 526                         foreach ($audios as $audio) {
 527                                 $body = str_replace($audio[0], '', $body);
 528                                 $attachments[$audio[1]] = ['uri-id' => $uriid, 'type' => self::AUDIO, 'url' => $audio[1]];
 529                         }
 530                 }
 531
 532                 if (preg_match_all("/\[video\]([^\[\]]*)\[\/video\]$endmatchpattern/ism", $body, $videos, PREG_SET_ORDER)) {
 533                         foreach ($videos as $video) {
 534                                 $body = str_replace($video[0], '', $body);
 535                                 $attachments[$video[1]] = ['uri-id' => $uriid, 'type' => self::VIDEO, 'url' => $video[1]];
 536                         }
 537                 }
 538
 539                 if ($uriid != 0) {
 540                         foreach ($attachments as $attachment) {
 541                                 if (Post\Link::exists($uriid, $attachment['preview'] ?? $attachment['url'])) {
 542                                         continue;
 543                                 }
 544
 545                                 // Only store attachments that are part of the unshared body
 546                                 if (Item::containsLink($unshared_body, $attachment['preview'] ?? $attachment['url'], $attachment['type'])) {
 547                                         self::insert($attachment);
 548                                 }
 549                         }
 550                 }
 551
 552                 return trim($body);
 553         }
 554
 555         /**
 556          * Remove media that is at the end of the body
 557          *
 558          * @param string $body
 559          * @return string
 560          */
 561         public static function removeFromEndOfBody(string $body): string
 562         {
 563                 do {
 564                         $prebody = $body;
 565                         $body = self::insertFromBody(0, $body, true);
 566                 } while ($prebody != $body);
 567                 return $body;
 568         }
 569
 570         /**
 571          * Add media links from a relevant url in the body
 572          *
 573          * @param integer $uriid
 574          * @param string $body
 575          * @return void
 576          */
 577         public static function insertFromRelevantUrl(int $uriid, string $body, string $fullbody, string $network)
 578         {
 579                 // Remove all hashtags and mentions
 580                 $body = preg_replace("/([#@!])\[url\=(.*?)\](.*?)\[\/url\]/ism", '', $body);
 581
 582                 // Search for pure links
 583                 if (preg_match_all("/\[url\](https?:.*?)\[\/url\]/ism", $body, $matches)) {
 584                         foreach ($matches[1] as $url) {
 585                                 Logger::info('Got page url (link without description)', ['uri-id' => $uriid, 'url' => $url]);
 586                                 $result = self::insert(['uri-id' => $uriid, 'type' => self::UNKNOWN, 'url' => $url], false, $network);
 587                                 if ($result && ($network == Protocol::DFRN)) {
 588                                         self::revertHTMLType($uriid, $url, $fullbody);
 589                                         Logger::debug('Revert HTML type', ['uri-id' => $uriid, 'url' => $url]);
 590                                 } elseif ($result) {
 591                                         Logger::debug('Media had been added', ['uri-id' => $uriid, 'url' => $url]);
 592                                 } else {
 593                                         Logger::debug('Media had not been added', ['uri-id' => $uriid, 'url' => $url]);
 594                                 }
 595                         }
 596                 }
 597
 598                 // Search for links with descriptions
 599                 if (preg_match_all("/\[url\=(https?:.*?)\].*?\[\/url\]/ism", $body, $matches)) {
 600                         foreach ($matches[1] as $url) {
 601                                 Logger::info('Got page url (link with description)', ['uri-id' => $uriid, 'url' => $url]);
 602                                 $result = self::insert(['uri-id' => $uriid, 'type' => self::UNKNOWN, 'url' => $url], false, $network);
 603                                 if ($result && ($network == Protocol::DFRN)) {
 604                                         self::revertHTMLType($uriid, $url, $fullbody);
 605                                         Logger::debug('Revert HTML type', ['uri-id' => $uriid, 'url' => $url]);
 606                                 } elseif ($result) {
 607                                         Logger::debug('Media has been added', ['uri-id' => $uriid, 'url' => $url]);
 608                                 } else {
 609                                         Logger::debug('Media has not been added', ['uri-id' => $uriid, 'url' => $url]);
 610                                 }
 611                         }
 612                 }
 613         }
 614
 615         /**
 616          * Revert the media type of links to UNKNOWN for DFRN posts when they aren't attached
 617          *
 618          * @param integer $uriid
 619          * @param string $url
 620          * @param string $body
 621          * @return void
 622          */
 623         private static function revertHTMLType(int $uriid, string $url, string $body)
 624         {
 625                 $attachment = BBCode::getAttachmentData($body);
 626                 if (!empty($attachment['url']) && Network::getUrlMatch($attachment['url'], $url)) {
 627                         return;
 628                 }
 629                 DBA::update('post-media', ['type' => self::UNKNOWN], ['uri-id' => $uriid, 'type' => self::HTML, 'url' => $url]);
 630         }
 631
 632         /**
 633          * Add media links from the attachment field
 634          *
 635          * @param integer $uriid
 636          * @param string $body
 637          * @return void
 638          */
 639         public static function insertFromAttachmentData(int $uriid, string $body)
 640         {
 641                 $data = BBCode::getAttachmentData($body);
 642                 if (empty($data)) {
 643                         return;
 644                 }
 645
 646                 Logger::info('Adding attachment data', ['data' => $data]);
 647                 $attachment = [
 648                         'uri-id' => $uriid,
 649                         'type' => self::HTML,
 650                         'url' => $data['url'],
 651                         'preview' => $data['preview'] ?? null,
 652                         'description' => $data['description'] ?? null,
 653                         'name' => $data['title'] ?? null,
 654                         'author-url' => $data['author_url'] ?? null,
 655                         'author-name' => $data['author_name'] ?? null,
 656                         'publisher-url' => $data['provider_url'] ?? null,
 657                         'publisher-name' => $data['provider_name'] ?? null,
 658                 ];
 659                 if (!empty($data['image'])) {
 660                         $attachment['preview'] = $data['image'];
 661                 }
 662                 self::insert($attachment);
 663         }
 664
 665         /**
 666          * Add media links from the attach field
 667          *
 668          * @param integer $uriid
 669          * @param string $attach
 670          * @return void
 671          */
 672         public static function insertFromAttachment(int $uriid, string $attach)
 673         {
 674                 if (!preg_match_all('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\"(?: title=\"(.*?)\")?|', $attach, $matches, PREG_SET_ORDER)) {
 675                         return;
 676                 }
 677
 678                 foreach ($matches as $attachment) {
 679                         $media['type'] = self::DOCUMENT;
 680                         $media['uri-id'] = $uriid;
 681                         $media['url'] = $attachment[1];
 682                         $media['size'] = $attachment[2];
 683                         $media['mimetype'] = $attachment[3];
 684                         $media['description'] = $attachment[4] ?? '';
 685
 686                         self::insert($media);
 687                 }
 688         }
 689
 690         /**
 691          * Retrieves the media attachments associated with the provided item ID.
 692          *
 693          * @param int $uri_id URI id
 694          * @param array $types Media types
 695          * @return array|bool Array on success, false on error
 696          * @throws \Exception
 697          */
 698         public static function getByURIId(int $uri_id, array $types = [])
 699         {
 700                 $condition = ["`uri-id` = ? AND `type` != ?", $uri_id, self::UNKNOWN];
 701
 702                 if (!empty($types)) {
 703                         $condition = DBA::mergeConditions($condition, ['type' => $types]);
 704                 }
 705
 706                 return DBA::selectToArray('post-media', [], $condition, ['order' => ['id']]);
 707         }
 708
 709         /**
 710          * Checks if media attachments are associated with the provided item ID.
 711          *
 712          * @param int $uri_id URI id
 713          * @param array $types Media types
 714          * @return bool Whether media attachment exists
 715          * @throws \Exception
 716          */
 717         public static function existsByURIId(int $uri_id, array $types = []): bool
 718         {
 719                 $condition = ["`uri-id` = ? AND `type` != ?", $uri_id, self::UNKNOWN];
 720
 721                 if (!empty($types)) {
 722                         $condition = DBA::mergeConditions($condition, ['type' => $types]);
 723                 }
 724
 725                 return DBA::exists('post-media', $condition);
 726         }
 727
 728         /**
 729          * Delete media by uri-id and media type
 730          *
 731          * @param int $uri_id URI id
 732          * @param array $types Media types
 733          * @return bool Whether media attachment exists
 734          * @throws \Exception
 735          */
 736         public static function deleteByURIId(int $uri_id, array $types = []): bool
 737         {
 738                 $condition = ['uri-id' => $uri_id];
 739
 740                 if (!empty($types)) {
 741                         $condition = DBA::mergeConditions($condition, ['type' => $types]);
 742                 }
 743
 744                 return DBA::delete('post-media', $condition);
 745         }
 746
 747         /**
 748          * Split the attachment media in the three segments "visual", "link" and "additional"
 749          *
 750          * @param int    $uri_id URI id
 751          * @param array  $links list of links that shouldn't be added
 752          * @param bool   $has_media
 753          * @return array attachments
 754          */
 755         public static function splitAttachments(int $uri_id, array $links = [], bool $has_media = true): array
 756         {
 757                 $attachments = ['visual' => [], 'link' => [], 'additional' => []];
 758
 759                 if (!$has_media) {
 760                         return $attachments;
 761                 }
 762
 763                 $media = self::getByURIId($uri_id);
 764                 if (empty($media)) {
 765                         return $attachments;
 766                 }
 767
 768                 $heights = [];
 769                 $selected = '';
 770                 $previews = [];
 771
 772                 foreach ($media as $medium) {
 773                         foreach ($links as $link) {
 774                                 if (Strings::compareLink($link, $medium['url'])) {
 775                                         continue 2;
 776                                 }
 777                         }
 778
 779                         // Avoid adding separate media entries for previews
 780                         foreach ($previews as $preview) {
 781                                 if (Strings::compareLink($preview, $medium['url'])) {
 782                                         continue 2;
 783                                 }
 784                         }
 785
 786                         // Currently these two types are ignored here.
 787                         // Posts are added differently and contacts are not displayed as attachments.
 788                         if (in_array($medium['type'], [self::ACCOUNT, self::ACTIVITY])) {
 789                                 continue;
 790                         }
 791
 792                         if (!empty($medium['preview'])) {
 793                                 $previews[] = $medium['preview'];
 794                         }
 795
 796                         $type = explode('/', explode(';', $medium['mimetype'] ?? '')[0]);
 797                         if (count($type) < 2) {
 798                                 Logger::info('Unknown MimeType', ['type' => $type, 'media' => $medium]);
 799                                 $filetype = 'unkn';
 800                                 $subtype = 'unkn';
 801                         } else {
 802                                 $filetype = strtolower($type[0]);
 803                                 $subtype = strtolower($type[1]);
 804                         }
 805
 806                         $medium['filetype'] = $filetype;
 807                         $medium['subtype'] = $subtype;
 808
 809                         if ($medium['type'] == self::HTML || (($filetype == 'text') && ($subtype == 'html'))) {
 810                                 $attachments['link'][] = $medium;
 811                                 continue;
 812                         }
 813
 814                         if (
 815                                 in_array($medium['type'], [self::AUDIO, self::IMAGE]) ||
 816                                 in_array($filetype, ['audio', 'image'])
 817                         ) {
 818                                 $attachments['visual'][] = $medium;
 819                         } elseif (($medium['type'] == self::VIDEO) || ($filetype == 'video')) {
 820                                 if (!empty($medium['height'])) {
 821                                         // Peertube videos are delivered in many different resolutions. We pick a moderate one.
 822                                         // Since only Peertube provides a "height" parameter, this wouldn't be executed
 823                                         // when someone for example on Mastodon was sharing multiple videos in a single post.
 824                                         $heights[$medium['height']] = $medium['url'];
 825                                         $video[$medium['url']] = $medium;
 826                                 } else {
 827                                         $attachments['visual'][] = $medium;
 828                                 }
 829                         } else {
 830                                 $attachments['additional'][] = $medium;
 831                         }
 832                 }
 833
 834                 if (!empty($heights)) {
 835                         ksort($heights);
 836                         foreach ($heights as $height => $url) {
 837                                 if (empty($selected) || $height <= 480) {
 838                                         $selected = $url;
 839                                 }
 840                         }
 841
 842                         if (!empty($selected)) {
 843                                 $attachments['visual'][] = $video[$selected];
 844                                 unset($video[$selected]);
 845                                 foreach ($video as $element) {
 846                                         $attachments['additional'][] = $element;
 847                                 }
 848                         }
 849                 }
 850
 851                 return $attachments;
 852         }
 853
 854         /**
 855          * Add media attachments to the body
 856          *
 857          * @param int    $uriid
 858          * @param string $body
 859          * @param array  $types
 860          *
 861          * @return string body
 862          */
 863         public static function addAttachmentsToBody(int $uriid, string $body = '', array $types = [self::IMAGE, self::AUDIO, self::VIDEO]): string
 864         {
 865                 if (empty($body)) {
 866                         $item = Post::selectFirst(['body'], ['uri-id' => $uriid]);
 867                         if (!DBA::isResult($item)) {
 868                                 return '';
 869                         }
 870                         $body = $item['body'];
 871                 }
 872                 $original_body = $body;
 873
 874                 $body = BBCode::removeAttachment($body);
 875
 876                 foreach (self::getByURIId($uriid, $types) as $media) {
 877                         if (Item::containsLink($body, $media['preview'] ?? $media['url'], $media['type'])) {
 878                                 continue;
 879                         }
 880
 881                         if ($media['type'] == self::IMAGE) {
 882                                 if (!empty($media['preview'])) {
 883                                         if (!empty($media['description'])) {
 884                                                 $body .= "\n[url=" . $media['url'] . "][img=" . $media['preview'] . ']' . $media['description'] . '[/img][/url]';
 885                                         } else {
 886                                                 $body .= "\n[url=" . $media['url'] . "][img]" . $media['preview'] . '[/img][/url]';
 887                                         }
 888                                 } else {
 889                                         if (!empty($media['description'])) {
 890                                                 $body .= "\n[img=" . $media['url'] . ']' . $media['description'] . '[/img]';
 891                                         } else {
 892                                                 $body .= "\n[img]" . $media['url'] . '[/img]';
 893                                         }
 894                                 }
 895                         } elseif ($media['type'] == self::AUDIO) {
 896                                 $body .= "\n[audio]" . $media['url'] . "[/audio]\n";
 897                         } elseif ($media['type'] == self::VIDEO) {
 898                                 $body .= "\n[video]" . $media['url'] . "[/video]\n";
 899                         }
 900                 }
 901
 902                 if (preg_match("/.*(\[attachment.*?\].*?\[\/attachment\]).*/ism", $original_body, $match)) {
 903                         $body .= "\n" . $match[1];
 904                 }
 905
 906                 return $body;
 907         }
 908
 909         /**
 910          * Add an [attachment] element to the body for a given uri-id with a HTML media element
 911          *
 912          * @param integer $uriid
 913          * @param string $body
 914          * @return string
 915          */
 916         public static function addHTMLAttachmentToBody(int $uriid, string $body): string
 917         {
 918                 if (preg_match("/.*(\[attachment.*?\].*?\[\/attachment\]).*/ism", $body, $match)) {
 919                         return $body;
 920                 }
 921
 922                 $links = self::getByURIId($uriid, [self::HTML]);
 923                 if (empty($links)) {
 924                         return $body;
 925                 }
 926
 927                 $data = [
 928                         'type' => 'link',
 929                         'url'  => $links[0]['url'],
 930                         'title' => $links[0]['name'],
 931                         'text' => $links[0]['description'],
 932                         'publisher_name' => $links[0]['publisher-name'],
 933                         'publisher_url' => $links[0]['publisher-url'],
 934                         'publisher_img' => $links[0]['publisher-image'],
 935                         'author_name' => $links[0]['author-name'],
 936                         'author_url' => $links[0]['author-url'],
 937                         'author_img' => $links[0]['author-image'],
 938                         'images' => [[
 939                                 'src' => $links[0]['preview'],
 940                                 'height' => $links[0]['preview-height'],
 941                                 'width' => $links[0]['preview-width'],
 942                         ]]
 943                 ];
 944                 $body .= "\n" . PageInfo::getFooterFromData($data);
 945
 946                 return $body;
 947         }
 948
 949         /**
 950          * Add a link to the body for a given uri-id with a HTML media element
 951          *
 952          * @param integer $uriid
 953          * @param string $body
 954          * @return string
 955          */
 956         public static function addHTMLLinkToBody(int $uriid, string $body): string
 957         {
 958                 $links = self::getByURIId($uriid, [self::HTML]);
 959                 if (empty($links)) {
 960                         return $body;
 961                 }
 962
 963                 if (strpos($body, $links[0]['url'])) {
 964                         return $body;
 965                 }
 966
 967                 if (!empty($links[0]['name']) && ($links[0]['name'] != $links[0]['url'])) {
 968                         return $body . "\n[url=" . $links[0]['url'] . ']' . $links[0]['name'] . "[/url]";
 969                 } else {
 970                         return $body . "\n[url]" . $links[0]['url'] . "[/url]";
 971                 }
 972         }
 973
 974         /**
 975          * Add an [attachment] element to the body and a link to raw-body for a given uri-id with a HTML media element
 976          *
 977          * @param array $item
 978          * @return array
 979          */
 980         public static function addHTMLAttachmentToItem(array $item): array
 981         {
 982                 if (($item['gravity'] == Item::GRAVITY_ACTIVITY) || empty($item['uri-id'])) {
 983                         return $item;
 984                 }
 985
 986                 $item['body'] = self::addHTMLAttachmentToBody($item['uri-id'], $item['body']);
 987
 988                 if (!empty($item['raw-body'])) {
 989                         $item['raw-body'] = self::addHTMLLinkToBody($item['uri-id'], $item['raw-body']);
 990                 }
 991
 992                 return $item;
 993         }
 994
 995         /**
 996          * Get preview link for given media id
 997          *
 998          * @param integer $id   media id
 999          * @param string  $size One of the Proxy::SIZE_* constants
1000          * @return string preview link
1001          */
1002         public static function getPreviewUrlForId(int $id, string $size = ''): string
1003         {
1004                 $url = DI::baseUrl() . '/photo/preview/';
1005                 switch ($size) {
1006                         case Proxy::SIZE_MICRO:
1007                                 $url .= Proxy::PIXEL_MICRO . '/';
1008                                 break;
1009                         case Proxy::SIZE_THUMB:
1010                                 $url .= Proxy::PIXEL_THUMB . '/';
1011                                 break;
1012                         case Proxy::SIZE_SMALL:
1013                                 $url .= Proxy::PIXEL_SMALL . '/';
1014                                 break;
1015                         case Proxy::SIZE_MEDIUM:
1016                                 $url .= Proxy::PIXEL_MEDIUM . '/';
1017                                 break;
1018                         case Proxy::SIZE_LARGE:
1019                                 $url .= Proxy::PIXEL_LARGE . '/';
1020                                 break;
1021                 }
1022                 return $url . $id;
1023         }
1024
1025         /**
1026          * Get media link for given media id
1027          *
1028          * @param integer $id   media id
1029          * @param string  $size One of the Proxy::SIZE_* constants
1030          * @return string media link
1031          */
1032         public static function getUrlForId(int $id, string $size = ''): string
1033         {
1034                 $url = DI::baseUrl() . '/photo/media/';
1035                 switch ($size) {
1036                         case Proxy::SIZE_MICRO:
1037                                 $url .= Proxy::PIXEL_MICRO . '/';
1038                                 break;
1039                         case Proxy::SIZE_THUMB:
1040                                 $url .= Proxy::PIXEL_THUMB . '/';
1041                                 break;
1042                         case Proxy::SIZE_SMALL:
1043                                 $url .= Proxy::PIXEL_SMALL . '/';
1044                                 break;
1045                         case Proxy::SIZE_MEDIUM:
1046                                 $url .= Proxy::PIXEL_MEDIUM . '/';
1047                                 break;
1048                         case Proxy::SIZE_LARGE:
1049                                 $url .= Proxy::PIXEL_LARGE . '/';
1050                                 break;
1051                 }
1052                 return $url . $id;
1053         }
1054 }