src/Model/Post/Media.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2022, the Friendica project
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 namespace Friendica\Model\Post;
  23
  24 use Friendica\Content\Text\BBCode;
  25 use Friendica\Core\Logger;
  26 use Friendica\Core\System;
  27 use Friendica\Database\Database;
  28 use Friendica\Database\DBA;
  29 use Friendica\DI;
  30 use Friendica\Model\Item;
  31 use Friendica\Model\Photo;
  32 use Friendica\Model\Post;
  33 use Friendica\Network\HTTPClient\Client\HttpClientAccept;
  34 use Friendica\Network\HTTPClient\Client\HttpClientOptions;
  35 use Friendica\Util\Images;
  36 use Friendica\Util\Network;
  37 use Friendica\Util\ParseUrl;
  38 use Friendica\Util\Proxy;
  39 use Friendica\Util\Strings;
  40
  41 /**
  42  * Class Media
  43  *
  44  * This Model class handles media interactions.
  45  * This tables stores medias (images, videos, audio files) related to posts.
  46  */
  47 class Media
  48 {
  49         const UNKNOWN     = 0;
  50         const IMAGE       = 1;
  51         const VIDEO       = 2;
  52         const AUDIO       = 3;
  53         const TEXT        = 4;
  54         const APPLICATION = 5;
  55         const TORRENT     = 16;
  56         const HTML        = 17;
  57         const XML         = 18;
  58         const PLAIN       = 19;
  59         const DOCUMENT    = 128;
  60
  61         /**
  62          * Insert a post-media record
  63          *
  64          * @param array $media
  65          * @return void
  66          */
  67         public static function insert(array $media, bool $force = false)
  68         {
  69                 if (empty($media['url']) || empty($media['uri-id']) || !isset($media['type'])) {
  70                         Logger::warning('Incomplete media data', ['media' => $media]);
  71                         return;
  72                 }
  73
  74                 if (DBA::exists('post-media', ['uri-id' => $media['uri-id'], 'preview' => $media['url']])) {
  75                         Logger::info('Media already exists as preview', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'callstack' => System::callstack()]);
  76                         return;
  77                 }
  78
  79                 // "document" has got the lowest priority. So when the same file is both attached as document
  80                 // and embedded as picture then we only store the picture or replace the document
  81                 $found = DBA::selectFirst('post-media', ['type'], ['uri-id' => $media['uri-id'], 'url' => $media['url']]);
  82                 if (!$force && !empty($found) && (($found['type'] != self::DOCUMENT) || ($media['type'] == self::DOCUMENT))) {
  83                         Logger::info('Media already exists', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'callstack' => System::callstack()]);
  84                         return;
  85                 }
  86
  87                 $media = self::unsetEmptyFields($media);
  88                 $media = DI::dbaDefinition()->truncateFieldsForTable('post-media', $media);
  89
  90                 // We are storing as fast as possible to avoid duplicated network requests
  91                 // when fetching additional information for pictures and other content.
  92                 $result = DBA::insert('post-media', $media, Database::INSERT_UPDATE);
  93                 Logger::info('Stored media', ['result' => $result, 'media' => $media, 'callstack' => System::callstack()]);
  94                 $stored = $media;
  95
  96                 $media = self::fetchAdditionalData($media);
  97                 $media = self::unsetEmptyFields($media);
  98                 $media = DI::dbaDefinition()->truncateFieldsForTable('post-media', $media);
  99
 100                 if (array_diff_assoc($media, $stored)) {
 101                         $result = DBA::insert('post-media', $media, Database::INSERT_UPDATE);
 102                         Logger::info('Updated media', ['result' => $result, 'media' => $media]);
 103                 } else {
 104                         Logger::info('Nothing to update', ['media' => $media]);
 105                 }
 106         }
 107
 108         /**
 109          * Remove empty media fields
 110          *
 111          * @param array $media
 112          * @return array cleaned media array
 113          */
 114         private static function unsetEmptyFields(array $media): array
 115         {
 116                 $fields = ['mimetype', 'height', 'width', 'size', 'preview', 'preview-height', 'preview-width', 'description'];
 117                 foreach ($fields as $field) {
 118                         if (empty($media[$field])) {
 119                                 unset($media[$field]);
 120                         }
 121                 }
 122                 return $media;
 123         }
 124
 125         /**
 126          * Copy attachments from one uri-id to another
 127          *
 128          * @param integer $from_uri_id
 129          * @param integer $to_uri_id
 130          * @return void
 131          */
 132         public static function copy(int $from_uri_id, int $to_uri_id)
 133         {
 134                 $attachments = self::getByURIId($from_uri_id);
 135                 foreach ($attachments as $attachment) {
 136                         $attachment['uri-id'] = $to_uri_id;
 137                         self::insert($attachment);
 138                 }
 139         }
 140
 141         /**
 142          * Creates the "[attach]" element from the given attributes
 143          *
 144          * @param string $href
 145          * @param integer $length
 146          * @param string $type
 147          * @param string $title
 148          * @return string "[attach]" element
 149          */
 150         public static function getAttachElement(string $href, int $length, string $type, string $title = ''): string
 151         {
 152                 $media = self::fetchAdditionalData(['type' => self::DOCUMENT, 'url' => $href,
 153                         'size' => $length, 'mimetype' => $type, 'description' => $title]);
 154
 155                 return '[attach]href="' . $media['url'] . '" length="' . $media['size'] .
 156                         '" type="' . $media['mimetype'] . '" title="' . $media['description'] . '"[/attach]';
 157         }
 158
 159         /**
 160          * Fetch additional data for the provided media array
 161          *
 162          * @param array $media
 163          * @return array media array with additional data
 164          */
 165         public static function fetchAdditionalData(array $media): array
 166         {
 167                 if (Network::isLocalLink($media['url'])) {
 168                         $media = self::fetchLocalData($media);
 169                 }
 170
 171                 // Fetch the mimetype or size if missing.
 172                 if (empty($media['mimetype']) || empty($media['size'])) {
 173                         $timeout = DI::config()->get('system', 'xrd_timeout');
 174                         $curlResult = DI::httpClient()->head($media['url'], [HttpClientOptions::TIMEOUT => $timeout]);
 175
 176                         // Workaround for systems that can't handle a HEAD request
 177                         if (!$curlResult->isSuccess() && ($curlResult->getReturnCode() == 405)) {
 178                                 $curlResult = DI::httpClient()->get($media['url'], HttpClientAccept::DEFAULT, [HttpClientOptions::TIMEOUT => $timeout]);
 179                         }
 180
 181                         if ($curlResult->isSuccess()) {
 182                                 if (empty($media['mimetype'])) {
 183                                         $media['mimetype'] = $curlResult->getHeader('Content-Type')[0] ?? '';
 184                                 }
 185                                 if (empty($media['size'])) {
 186                                         $media['size'] = (int)($curlResult->getHeader('Content-Length')[0] ?? 0);
 187                                 }
 188                         } else {
 189                                 Logger::notice('Could not fetch head', ['media' => $media]);
 190                         }
 191                 }
 192
 193                 $filetype = !empty($media['mimetype']) ? strtolower(current(explode('/', $media['mimetype']))) : '';
 194
 195                 if (($media['type'] == self::IMAGE) || ($filetype == 'image')) {
 196                         $imagedata = Images::getInfoFromURLCached($media['url']);
 197                         if ($imagedata) {
 198                                 $media['mimetype'] = $imagedata['mime'];
 199                                 $media['size'] = $imagedata['size'];
 200                                 $media['width'] = $imagedata[0];
 201                                 $media['height'] = $imagedata[1];
 202                         } else {
 203                                 Logger::notice('No image data', ['media' => $media]);
 204                         }
 205                         if (!empty($media['preview'])) {
 206                                 $imagedata = Images::getInfoFromURLCached($media['preview']);
 207                                 if ($imagedata) {
 208                                         $media['preview-width'] = $imagedata[0];
 209                                         $media['preview-height'] = $imagedata[1];
 210                                 }
 211                         }
 212                 }
 213
 214                 if ($media['type'] != self::DOCUMENT) {
 215                         $media = self::addType($media);
 216                 }
 217
 218                 if ($media['type'] == self::HTML) {
 219                         $data = ParseUrl::getSiteinfoCached($media['url'], false);
 220                         $media['preview'] = $data['images'][0]['src'] ?? null;
 221                         $media['preview-height'] = $data['images'][0]['height'] ?? null;
 222                         $media['preview-width'] = $data['images'][0]['width'] ?? null;
 223                         $media['description'] = $data['text'] ?? null;
 224                         $media['name'] = $data['title'] ?? null;
 225                         $media['author-url'] = $data['author_url'] ?? null;
 226                         $media['author-name'] = $data['author_name'] ?? null;
 227                         $media['author-image'] = $data['author_img'] ?? null;
 228                         $media['publisher-url'] = $data['publisher_url'] ?? null;
 229                         $media['publisher-name'] = $data['publisher_name'] ?? null;
 230                         $media['publisher-image'] = $data['publisher_img'] ?? null;
 231                 }
 232                 return $media;
 233         }
 234
 235         /**
 236          * Fetch media data from local resources
 237          * @param array $media
 238          * @return array media with added data
 239          */
 240         private static function fetchLocalData(array $media): array
 241         {
 242                 if (!preg_match('|.*?/photo/(.*[a-fA-F0-9])\-(.*[0-9])\..*[\w]|', $media['url'] ?? '', $matches)) {
 243                         return $media;
 244                 }
 245                 $photo = Photo::selectFirst([], ['resource-id' => $matches[1], 'scale' => $matches[2]]);
 246                 if (!empty($photo)) {
 247                         $media['mimetype'] = $photo['type'];
 248                         $media['size'] = $photo['datasize'];
 249                         $media['width'] = $photo['width'];
 250                         $media['height'] = $photo['height'];
 251                 }
 252
 253                 if (!preg_match('|.*?/photo/(.*[a-fA-F0-9])\-(.*[0-9])\..*[\w]|', $media['preview'] ?? '', $matches)) {
 254                         return $media;
 255                 }
 256                 $photo = Photo::selectFirst([], ['resource-id' => $matches[1], 'scale' => $matches[2]]);
 257                 if (!empty($photo)) {
 258                         $media['preview-width'] = $photo['width'];
 259                         $media['preview-height'] = $photo['height'];
 260                 }
 261
 262                 return $media;
 263         }
 264
 265         /**
 266          * Add the detected type to the media array
 267          *
 268          * @param array $data
 269          * @return array data array with the detected type
 270          */
 271         public static function addType(array $data): array
 272         {
 273                 if (empty($data['mimetype'])) {
 274                         Logger::info('No MimeType provided', ['media' => $data]);
 275                         return $data;
 276                 }
 277
 278                 $type = explode('/', current(explode(';', $data['mimetype'])));
 279                 if (count($type) < 2) {
 280                         Logger::info('Unknown MimeType', ['type' => $type, 'media' => $data]);
 281                         $data['type'] = self::UNKNOWN;
 282                         return $data;
 283                 }
 284
 285                 $filetype = strtolower($type[0]);
 286                 $subtype = strtolower($type[1]);
 287
 288                 if ($filetype == 'image') {
 289                         $data['type'] = self::IMAGE;
 290                 } elseif ($filetype == 'video') {
 291                         $data['type'] = self::VIDEO;
 292                 } elseif ($filetype == 'audio') {
 293                         $data['type'] = self::AUDIO;
 294                 } elseif (($filetype == 'text') && ($subtype == 'html')) {
 295                         $data['type'] = self::HTML;
 296                 } elseif (($filetype == 'text') && ($subtype == 'xml')) {
 297                         $data['type'] = self::XML;
 298                 } elseif (($filetype == 'text') && ($subtype == 'plain')) {
 299                         $data['type'] = self::PLAIN;
 300                 } elseif ($filetype == 'text') {
 301                         $data['type'] = self::TEXT;
 302                 } elseif (($filetype == 'application') && ($subtype == 'x-bittorrent')) {
 303                         $data['type'] = self::TORRENT;
 304                 } elseif ($filetype == 'application') {
 305                         $data['type'] = self::APPLICATION;
 306                 } else {
 307                         $data['type'] = self::UNKNOWN;
 308                         Logger::info('Unknown type', ['filetype' => $filetype, 'subtype' => $subtype, 'media' => $data]);
 309                         return $data;
 310                 }
 311
 312                 Logger::debug('Detected type', ['filetype' => $filetype, 'subtype' => $subtype, 'media' => $data]);
 313                 return $data;
 314         }
 315
 316         /**
 317          * Tests for path patterns that are usef for picture links in Friendica
 318          *
 319          * @param string $page    Link to the image page
 320          * @param string $preview Preview picture
 321          * @return boolean
 322          */
 323         private static function isPictureLink(string $page, string $preview): bool
 324         {
 325                 return preg_match('#/photos/.*/image/#ism', $page) && preg_match('#/photo/.*-1\.#ism', $preview);
 326         }
 327
 328         /**
 329          * Add media links and remove them from the body
 330          *
 331          * @param integer $uriid
 332          * @param string $body
 333          * @return string Body without media links
 334          */
 335         public static function insertFromBody(int $uriid, string $body): string
 336         {
 337                 // Simplify image codes
 338                 $unshared_body = $body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $body);
 339
 340                 // Only remove the shared data from "real" reshares
 341                 $shared = BBCode::fetchShareAttributes($body);
 342                 if (!empty($shared['guid'])) {
 343                         $unshared_body = preg_replace("/\s*\[share .*?\].*?\[\/share\]\s*/ism", '', $body);
 344                 }
 345
 346                 $attachments = [];
 347                 if (preg_match_all("#\[url=([^\]]+?)\]\s*\[img=([^\[\]]*)\]([^\[\]]*)\[\/img\]\s*\[/url\]#ism", $body, $pictures, PREG_SET_ORDER)) {
 348                         foreach ($pictures as $picture) {
 349                                 if (!self::isPictureLink($picture[1], $picture[2])) {
 350                                         continue;
 351                                 }
 352                                 $body = str_replace($picture[0], '', $body);
 353                                 $image = str_replace('-1.', '-0.', $picture[2]);
 354                                 $attachments[$image] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $image,
 355                                         'preview' => $picture[2], 'description' => $picture[3]];
 356                         }
 357                 }
 358
 359                 if (preg_match_all("/\[img=([^\[\]]*)\]([^\[\]]*)\[\/img\]/Usi", $body, $pictures, PREG_SET_ORDER)) {
 360                         foreach ($pictures as $picture) {
 361                                 $body = str_replace($picture[0], '', $body);
 362                                 $attachments[$picture[1]] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $picture[1], 'description' => $picture[2]];
 363                         }
 364                 }
 365
 366                 if (preg_match_all("#\[url=([^\]]+?)\]\s*\[img\]([^\[]+?)\[/img\]\s*\[/url\]#ism", $body, $pictures, PREG_SET_ORDER)) {
 367                         foreach ($pictures as $picture) {
 368                                 if (!self::isPictureLink($picture[1], $picture[2])) {
 369                                         continue;
 370                                 }
 371                                 $body = str_replace($picture[0], '', $body);
 372                                 $image = str_replace('-1.', '-0.', $picture[2]);
 373                                 $attachments[$image] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $image,
 374                                         'preview' => $picture[2], 'description' => null];
 375                         }
 376                 }
 377
 378                 if (preg_match_all("/\[img\]([^\[\]]*)\[\/img\]/ism", $body, $pictures, PREG_SET_ORDER)) {
 379                         foreach ($pictures as $picture) {
 380                                 $body = str_replace($picture[0], '', $body);
 381                                 $attachments[$picture[1]] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $picture[1]];
 382                         }
 383                 }
 384
 385                 if (preg_match_all("/\[audio\]([^\[\]]*)\[\/audio\]/ism", $body, $audios, PREG_SET_ORDER)) {
 386                         foreach ($audios as $audio) {
 387                                 $body = str_replace($audio[0], '', $body);
 388                                 $attachments[$audio[1]] = ['uri-id' => $uriid, 'type' => self::AUDIO, 'url' => $audio[1]];
 389                         }
 390                 }
 391
 392                 if (preg_match_all("/\[video\]([^\[\]]*)\[\/video\]/ism", $body, $videos, PREG_SET_ORDER)) {
 393                         foreach ($videos as $video) {
 394                                 $body = str_replace($video[0], '', $body);
 395                                 $attachments[$video[1]] = ['uri-id' => $uriid, 'type' => self::VIDEO, 'url' => $video[1]];
 396                         }
 397                 }
 398
 399                 foreach ($attachments as $attachment) {
 400                         if (Post\Link::exists($uriid, $attachment['preview'] ?? $attachment['url'])) {
 401                                 continue;
 402                         }
 403
 404                         // Only store attachments that are part of the unshared body
 405                         if (Item::containsLink($unshared_body, $attachment['preview'] ?? $attachment['url'], $attachment['type'])) {
 406                                 self::insert($attachment);
 407                         }
 408                 }
 409
 410                 return trim($body);
 411         }
 412
 413         /**
 414          * Add media links from a relevant url in the body
 415          *
 416          * @param integer $uriid
 417          * @param string $body
 418          * @return void
 419          */
 420         public static function insertFromRelevantUrl(int $uriid, string $body)
 421         {
 422                 // Only remove the shared data from "real" reshares
 423                 $shared = BBCode::fetchShareAttributes($body);
 424                 if (!empty($shared['guid'])) {
 425                         // Don't look at the shared content
 426                         $body = preg_replace("/\s*\[share .*?\].*?\[\/share\]\s*/ism", '', $body);
 427                 }
 428
 429                 // Remove all hashtags and mentions
 430                 $body = preg_replace("/([#@!])\[url\=(.*?)\](.*?)\[\/url\]/ism", '', $body);
 431
 432                 // Search for pure links
 433                 if (preg_match_all("/\[url\](https?:.*?)\[\/url\]/ism", $body, $matches)) {
 434                         foreach ($matches[1] as $url) {
 435                                 Logger::info('Got page url (link without description)', ['uri-id' => $uriid, 'url' => $url]);
 436                                 self::insert(['uri-id' => $uriid, 'type' => self::UNKNOWN, 'url' => $url]);
 437                         }
 438                 }
 439
 440                 // Search for links with descriptions
 441                 if (preg_match_all("/\[url\=(https?:.*?)\].*?\[\/url\]/ism", $body, $matches)) {
 442                         foreach ($matches[1] as $url) {
 443                                 Logger::info('Got page url (link with description)', ['uri-id' => $uriid, 'url' => $url]);
 444                                 self::insert(['uri-id' => $uriid, 'type' => self::UNKNOWN, 'url' => $url]);
 445                         }
 446                 }
 447         }
 448
 449         /**
 450          * Add media links from the attachment field
 451          *
 452          * @param integer $uriid
 453          * @param string $body
 454          * @return void
 455          */
 456         public static function insertFromAttachmentData(int $uriid, string $body)
 457         {
 458                 // Don't look at the shared content
 459                 $body = preg_replace("/\s*\[share .*?\].*?\[\/share\]\s*/ism", '', $body);
 460
 461                 $data = BBCode::getAttachmentData($body);
 462                 if (empty($data))  {
 463                         return;
 464                 }
 465
 466                 Logger::info('Adding attachment data', ['data' => $data]);
 467                 $attachment = [
 468                         'uri-id' => $uriid,
 469                         'type' => self::HTML,
 470                         'url' => $data['url'],
 471                         'preview' => $data['preview'] ?? null,
 472                         'description' => $data['description'] ?? null,
 473                         'name' => $data['title'] ?? null,
 474                         'author-url' => $data['author_url'] ?? null,
 475                         'author-name' => $data['author_name'] ?? null,
 476                         'publisher-url' => $data['provider_url'] ?? null,
 477                         'publisher-name' => $data['provider_name'] ?? null,
 478                 ];
 479                 if (!empty($data['image'])) {
 480                         $attachment['preview'] = $data['image'];
 481                 }
 482                 self::insert($attachment);
 483         }
 484
 485         /**
 486          * Add media links from the attach field
 487          *
 488          * @param integer $uriid
 489          * @param string $attach
 490          * @return void
 491          */
 492         public static function insertFromAttachment(int $uriid, string $attach)
 493         {
 494                 if (!preg_match_all('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\"(?: title=\"(.*?)\")?|', $attach, $matches, PREG_SET_ORDER)) {
 495                         return;
 496                 }
 497
 498                 foreach ($matches as $attachment) {
 499                         $media['type'] = self::DOCUMENT;
 500                         $media['uri-id'] = $uriid;
 501                         $media['url'] = $attachment[1];
 502                         $media['size'] = $attachment[2];
 503                         $media['mimetype'] = $attachment[3];
 504                         $media['description'] = $attachment[4] ?? '';
 505
 506                         self::insert($media);
 507                 }
 508         }
 509
 510         /**
 511          * Retrieves the media attachments associated with the provided item ID.
 512          *
 513          * @param int $uri_id URI id
 514          * @param array $types Media types
 515          * @return array|bool Array on success, false on error
 516          * @throws \Exception
 517          */
 518         public static function getByURIId(int $uri_id, array $types = [])
 519         {
 520                 $condition = ['uri-id' => $uri_id];
 521
 522                 if (!empty($types)) {
 523                         $condition = DBA::mergeConditions($condition, ['type' => $types]);
 524                 }
 525
 526                 return DBA::selectToArray('post-media', [], $condition, ['order' => ['id']]);
 527         }
 528
 529         /**
 530          * Checks if media attachments are associated with the provided item ID.
 531          *
 532          * @param int $uri_id URI id
 533          * @param array $types Media types
 534          * @return bool Whether media attachment exists
 535          * @throws \Exception
 536          */
 537         public static function existsByURIId(int $uri_id, array $types = []): bool
 538         {
 539                 $condition = ['uri-id' => $uri_id];
 540
 541                 if (!empty($types)) {
 542                         $condition = DBA::mergeConditions($condition, ['type' => $types]);
 543                 }
 544
 545                 return DBA::exists('post-media', $condition);
 546         }
 547
 548         /**
 549          * Split the attachment media in the three segments "visual", "link" and "additional"
 550          *
 551          * @param int    $uri_id URI id
 552          * @param string $guid GUID
 553          * @param array  $links list of links that shouldn't be added
 554          * @param bool   $has_media
 555          * @return array attachments
 556          */
 557         public static function splitAttachments(int $uri_id, string $guid = '', array $links = [], bool $has_media = true): array
 558         {
 559                 $attachments = ['visual' => [], 'link' => [], 'additional' => []];
 560
 561                 if (!$has_media) {
 562                         return $attachments;
 563                 }
 564
 565                 $media = self::getByURIId($uri_id);
 566                 if (empty($media)) {
 567                         return $attachments;
 568                 }
 569
 570                 $heights = [];
 571                 $selected = '';
 572                 $previews = [];
 573
 574                 foreach ($media as $medium) {
 575                         foreach ($links as $link) {
 576                                 if (Strings::compareLink($link, $medium['url'])) {
 577                                         continue 2;
 578                                 }
 579                         }
 580
 581                         // Avoid adding separate media entries for previews
 582                         foreach ($previews as $preview) {
 583                                 if (Strings::compareLink($preview, $medium['url'])) {
 584                                         continue 2;
 585                                 }
 586                         }
 587
 588                         if (!empty($medium['preview'])) {
 589                                 $previews[] = $medium['preview'];
 590                         }
 591
 592                         $type = explode('/', current(explode(';', $medium['mimetype'])));
 593                         if (count($type) < 2) {
 594                                 Logger::info('Unknown MimeType', ['type' => $type, 'media' => $medium]);
 595                                 $filetype = 'unkn';
 596                                 $subtype = 'unkn';
 597                         } else {
 598                                 $filetype = strtolower($type[0]);
 599                                 $subtype = strtolower($type[1]);
 600                         }
 601
 602                         $medium['filetype'] = $filetype;
 603                         $medium['subtype'] = $subtype;
 604
 605                         if ($medium['type'] == self::HTML || (($filetype == 'text') && ($subtype == 'html'))) {
 606                                 $attachments['link'][] = $medium;
 607                                 continue;
 608                         }
 609
 610                         if (in_array($medium['type'], [self::AUDIO, self::IMAGE]) ||
 611                                 in_array($filetype, ['audio', 'image'])) {
 612                                 $attachments['visual'][] = $medium;
 613                         } elseif (($medium['type'] == self::VIDEO) || ($filetype == 'video')) {
 614                                 if (!empty($medium['height'])) {
 615                                         // Peertube videos are delivered in many different resolutions. We pick a moderate one.
 616                                         // Since only Peertube provides a "height" parameter, this wouldn't be executed
 617                                         // when someone for example on Mastodon was sharing multiple videos in a single post.
 618                                         $heights[$medium['height']] = $medium['url'];
 619                                         $video[$medium['url']] = $medium;
 620                                 } else {
 621                                         $attachments['visual'][] = $medium;
 622                                 }
 623                         } else {
 624                                 $attachments['additional'][] = $medium;
 625                         }
 626                 }
 627
 628                 if (!empty($heights)) {
 629                         ksort($heights);
 630                         foreach ($heights as $height => $url) {
 631                                 if (empty($selected) || $height <= 480) {
 632                                         $selected = $url;
 633                                 }
 634                         }
 635
 636                         if (!empty($selected)) {
 637                                 $attachments['visual'][] = $video[$selected];
 638                                 unset($video[$selected]);
 639                                 foreach ($video as $element) {
 640                                         $attachments['additional'][] = $element;
 641                                 }
 642                         }
 643                 }
 644
 645                 return $attachments;
 646         }
 647
 648         /**
 649          * Add media attachments to the body
 650          *
 651          * @param int    $uriid
 652          * @param string $body
 653          * @param array  $types
 654          *
 655          * @return string body
 656          */
 657         public static function addAttachmentsToBody(int $uriid, string $body = '', array $types = [self::IMAGE, self::AUDIO, self::VIDEO]): string
 658         {
 659                 if (empty($body)) {
 660                         $item = Post::selectFirst(['body'], ['uri-id' => $uriid]);
 661                         if (!DBA::isResult($item)) {
 662                                 return '';
 663                         }
 664                         $body = $item['body'];
 665                 }
 666                 $original_body = $body;
 667
 668                 $body = preg_replace("/\s*\[attachment .*?\].*?\[\/attachment\]\s*/ism", '', $body);
 669
 670                 foreach (self::getByURIId($uriid, $types) as $media) {
 671                         if (Item::containsLink($body, $media['preview'] ?? $media['url'], $media['type'])) {
 672                                 continue;
 673                         }
 674
 675                         if ($media['type'] == self::IMAGE) {
 676                                 if (!empty($media['preview'])) {
 677                                         if (!empty($media['description'])) {
 678                                                 $body .= "\n[url=" . $media['url'] . "][img=" . $media['preview'] . ']' . $media['description'] .'[/img][/url]';
 679                                         } else {
 680                                                 $body .= "\n[url=" . $media['url'] . "][img]" . $media['preview'] .'[/img][/url]';
 681                                         }
 682                                 } else {
 683                                         if (!empty($media['description'])) {
 684                                                 $body .= "\n[img=" . $media['url'] . ']' . $media['description'] .'[/img]';
 685                                         } else {
 686                                                 $body .= "\n[img]" . $media['url'] .'[/img]';
 687                                         }
 688                                 }
 689                         } elseif ($media['type'] == self::AUDIO) {
 690                                 $body .= "\n[audio]" . $media['url'] . "[/audio]\n";
 691                         } elseif ($media['type'] == self::VIDEO) {
 692                                 $body .= "\n[video]" . $media['url'] . "[/video]\n";
 693                         }
 694                 }
 695
 696                 if (preg_match("/.*(\[attachment.*?\].*?\[\/attachment\]).*/ism", $original_body, $match)) {
 697                         $body .= "\n" . $match[1];
 698                 }
 699
 700                 return $body;
 701         }
 702
 703         /**
 704          * Get preview link for given media id
 705          *
 706          * @param integer $id   media id
 707          * @param string  $size One of the Proxy::SIZE_* constants
 708          * @return string preview link
 709          */
 710         public static function getPreviewUrlForId(int $id, string $size = ''): string
 711         {
 712                 $url = DI::baseUrl() . '/photo/preview/';
 713                 switch ($size) {
 714                         case Proxy::SIZE_MICRO:
 715                                 $url .= Proxy::PIXEL_MICRO . '/';
 716                                 break;
 717                         case Proxy::SIZE_THUMB:
 718                                 $url .= Proxy::PIXEL_THUMB . '/';
 719                                 break;
 720                         case Proxy::SIZE_SMALL:
 721                                 $url .= Proxy::PIXEL_SMALL . '/';
 722                                 break;
 723                         case Proxy::SIZE_MEDIUM:
 724                                 $url .= Proxy::PIXEL_MEDIUM . '/';
 725                                 break;
 726                         case Proxy::SIZE_LARGE:
 727                                 $url .= Proxy::PIXEL_LARGE . '/';
 728                                 break;
 729                 }
 730                 return $url . $id;
 731         }
 732
 733         /**
 734          * Get media link for given media id
 735          *
 736          * @param integer $id   media id
 737          * @param string  $size One of the Proxy::SIZE_* constants
 738          * @return string media link
 739          */
 740         public static function getUrlForId(int $id, string $size = ''): string
 741         {
 742                 $url = DI::baseUrl() . '/photo/media/';
 743                 switch ($size) {
 744                         case Proxy::SIZE_MICRO:
 745                                 $url .= Proxy::PIXEL_MICRO . '/';
 746                                 break;
 747                         case Proxy::SIZE_THUMB:
 748                                 $url .= Proxy::PIXEL_THUMB . '/';
 749                                 break;
 750                         case Proxy::SIZE_SMALL:
 751                                 $url .= Proxy::PIXEL_SMALL . '/';
 752                                 break;
 753                         case Proxy::SIZE_MEDIUM:
 754                                 $url .= Proxy::PIXEL_MEDIUM . '/';
 755                                 break;
 756                         case Proxy::SIZE_LARGE:
 757                                 $url .= Proxy::PIXEL_LARGE . '/';
 758                                 break;
 759                 }
 760                 return $url . $id;
 761         }
 762 }