bluesky/bluesky.php

   1 <?php
   2 /**
   3  * Name: Bluesky Connector
   4  * Description: Post to Bluesky
   5  * Version: 1.1
   6  * Author: Michael Vogel <https://pirati.ca/profile/heluecht>
   7  *
   8  * @todo
   9  * Currently technical issues in the core:
  10  * - Outgoing mentions
  11  *
  12  * At some point in time:
  13  * - Sending Quote shares https://atproto.com/lexicons/app-bsky-embed#appbskyembedrecord and https://atproto.com/lexicons/app-bsky-embed#appbskyembedrecordwithmedia
  14  *
  15  * Possibly not possible:
  16  * - only fetch new posts
  17  *
  18  * Currently not possible, due to limitations in Friendica
  19  * - mute contacts https://atproto.com/lexicons/app-bsky-graph#appbskygraphmuteactor
  20  * - unmute contacts https://atproto.com/lexicons/app-bsky-graph#appbskygraphunmuteactor
  21  *
  22  * Possibly interesting:
  23  * - https://atproto.com/lexicons/com-atproto-label#comatprotolabelsubscribelabels
  24  */
  25
  26 use Friendica\Content\Text\BBCode;
  27 use Friendica\Content\Text\HTML;
  28 use Friendica\Content\Text\Plaintext;
  29 use Friendica\Core\Cache\Enum\Duration;
  30 use Friendica\Core\Config\Util\ConfigFileManager;
  31 use Friendica\Core\Hook;
  32 use Friendica\Core\Logger;
  33 use Friendica\Core\Protocol;
  34 use Friendica\Core\Renderer;
  35 use Friendica\Core\Worker;
  36 use Friendica\Database\DBA;
  37 use Friendica\DI;
  38 use Friendica\Model\Contact;
  39 use Friendica\Model\Item;
  40 use Friendica\Model\ItemURI;
  41 use Friendica\Model\Photo;
  42 use Friendica\Model\Post;
  43 use Friendica\Network\HTTPClient\Client\HttpClientAccept;
  44 use Friendica\Network\HTTPClient\Client\HttpClientOptions;
  45 use Friendica\Protocol\Activity;
  46 use Friendica\Protocol\Relay;
  47 use Friendica\Util\DateTimeFormat;
  48 use Friendica\Util\Strings;
  49
  50 const BLUESKY_DEFAULT_POLL_INTERVAL = 10; // given in minutes
  51 const BLUESKY_HOST = 'https://bsky.app'; // Hard wired until Bluesky will run on multiple systems
  52
  53 function bluesky_install()
  54 {
  55         Hook::register('load_config',             __FILE__, 'bluesky_load_config');
  56         Hook::register('hook_fork',               __FILE__, 'bluesky_hook_fork');
  57         Hook::register('post_local',              __FILE__, 'bluesky_post_local');
  58         Hook::register('notifier_normal',         __FILE__, 'bluesky_send');
  59         Hook::register('jot_networks',            __FILE__, 'bluesky_jot_nets');
  60         Hook::register('connector_settings',      __FILE__, 'bluesky_settings');
  61         Hook::register('connector_settings_post', __FILE__, 'bluesky_settings_post');
  62         Hook::register('cron',                    __FILE__, 'bluesky_cron');
  63         Hook::register('support_follow',          __FILE__, 'bluesky_support_follow');
  64         Hook::register('support_probe',           __FILE__, 'bluesky_support_probe');
  65         Hook::register('follow',                  __FILE__, 'bluesky_follow');
  66         Hook::register('unfollow',                __FILE__, 'bluesky_unfollow');
  67         Hook::register('block',                   __FILE__, 'bluesky_block');
  68         Hook::register('unblock',                 __FILE__, 'bluesky_unblock');
  69         Hook::register('check_item_notification', __FILE__, 'bluesky_check_item_notification');
  70         Hook::register('probe_detect',            __FILE__, 'bluesky_probe_detect');
  71         Hook::register('item_by_link',            __FILE__, 'bluesky_item_by_link');
  72 }
  73
  74 function bluesky_load_config(ConfigFileManager $loader)
  75 {
  76         DI::app()->getConfigCache()->load($loader->loadAddonConfig('bluesky'), \Friendica\Core\Config\ValueObject\Cache::SOURCE_STATIC);
  77 }
  78
  79 function bluesky_check_item_notification(array &$notification_data)
  80 {
  81         $did = DI::pConfig()->get($notification_data['uid'], 'bluesky', 'did');
  82
  83         if (!empty($did)) {
  84                 $notification_data['profiles'][] = $did;
  85         }
  86 }
  87
  88 function bluesky_probe_detect(array &$hookData)
  89 {
  90         // Don't overwrite an existing result
  91         if (isset($hookData['result'])) {
  92                 return;
  93         }
  94
  95         // Avoid a lookup for the wrong network
  96         if (!in_array($hookData['network'], ['', Protocol::BLUESKY])) {
  97                 return;
  98         }
  99
 100         $pconfig = DBA::selectFirst('pconfig', ['uid'], ["`cat` = ? AND `k` = ? AND `v` != ?", 'bluesky', 'access_token', '']);
 101         if (empty($pconfig['uid'])) {
 102                 return;
 103         }
 104
 105         if (parse_url($hookData['uri'], PHP_URL_SCHEME) == 'did') {
 106                 $did = $hookData['uri'];
 107         } elseif (preg_match('#^' . BLUESKY_HOST . '/profile/(.+)#', $hookData['uri'], $matches)) {
 108                 $did = bluesky_get_did($pconfig['uid'], $matches[1]);
 109                 if (empty($did)) {
 110                         return;
 111                 }
 112         } else {
 113                 return;
 114         }
 115
 116         $token = bluesky_get_token($pconfig['uid']);
 117         if (empty($token)) {
 118                 return;
 119         }
 120
 121         $data = bluesky_xrpc_get($pconfig['uid'], 'app.bsky.actor.getProfile', ['actor' => $did]);
 122         if (empty($data)) {
 123                 return;
 124         }
 125
 126         $hookData['result'] = bluesky_get_contact_fields($data, 0, false);
 127
 128         // Preparing probe data. This differs slightly from the contact array
 129         $hookData['result']['about']    = HTML::toBBCode($data->description ?? '');
 130         $hookData['result']['photo']    = $data->avatar ?? '';
 131         $hookData['result']['header']   = $data->banner ?? '';
 132         $hookData['result']['batch']    = '';
 133         $hookData['result']['notify']   = '';
 134         $hookData['result']['poll']     = '';
 135         $hookData['result']['poco']     = '';
 136         $hookData['result']['pubkey']   = '';
 137         $hookData['result']['priority'] = 0;
 138         $hookData['result']['guid']     = '';
 139 }
 140
 141 function bluesky_item_by_link(array &$hookData)
 142 {
 143         // Don't overwrite an existing result
 144         if (isset($hookData['item_id'])) {
 145                 return;
 146         }
 147
 148         $token = bluesky_get_token($hookData['uid']);
 149         if (empty($token)) {
 150                 return;
 151         }
 152
 153         if (!preg_match('#^' . BLUESKY_HOST . '/profile/(.+)/post/(.+)#', $hookData['uri'], $matches)) {
 154                 return;
 155         }
 156
 157         $did = bluesky_get_did($hookData['uid'], $matches[1]);
 158         if (empty($did)) {
 159                 return;
 160         }
 161
 162         Logger::debug('Found bluesky post', ['url' => $hookData['uri'], 'handle' => $matches[1], 'did' => $did, 'cid' => $matches[2]]);
 163
 164         $uri = 'at://' . $did . '/app.bsky.feed.post/' . $matches[2];
 165
 166         $uri = bluesky_fetch_missing_post($uri, $hookData['uid'], 0, 0);
 167         Logger::debug('Got post', ['profile' => $matches[1], 'cid' => $matches[2], 'result' => $uri]);
 168         if (!empty($uri)) {
 169                 $item = Post::selectFirst(['id'], ['uri' => $uri, 'uid' => $hookData['uid']]);
 170                 if (!empty($item['id'])) {
 171                         $hookData['item_id'] = $item['id'];
 172                 }
 173         }
 174 }
 175
 176 function bluesky_support_follow(array &$data)
 177 {
 178         if ($data['protocol'] == Protocol::BLUESKY) {
 179                 $data['result'] = true;
 180         }
 181 }
 182
 183 function bluesky_support_probe(array &$data)
 184 {
 185         if ($data['protocol'] == Protocol::BLUESKY) {
 186                 $data['result'] = true;
 187         }
 188 }
 189
 190 function bluesky_follow(array &$hook_data)
 191 {
 192         $token = bluesky_get_token($hook_data['uid']);
 193         if (empty($token)) {
 194                 return;
 195         }
 196
 197         Logger::debug('Check if contact is bluesky', ['data' => $hook_data]);
 198         $contact = DBA::selectFirst('contact', [], ['network' => Protocol::BLUESKY, 'url' => $hook_data['url'], 'uid' => [0, $hook_data['uid']]]);
 199         if (empty($contact)) {
 200                 return;
 201         }
 202
 203         $record = [
 204                 'subject'   => $contact['url'],
 205                 'createdAt' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 206                 '$type'     => 'app.bsky.graph.follow'
 207         ];
 208
 209         $post = [
 210                 'collection' => 'app.bsky.graph.follow',
 211                 'repo'       => DI::pConfig()->get($hook_data['uid'], 'bluesky', 'did'),
 212                 'record'     => $record
 213         ];
 214
 215         $activity = bluesky_xrpc_post($hook_data['uid'], 'com.atproto.repo.createRecord', $post);
 216         if (!empty($activity->uri)) {
 217                 $hook_data['contact'] = $contact;
 218                 Logger::debug('Successfully start following', ['url' => $contact['url'], 'uri' => $activity->uri]);
 219         }
 220 }
 221
 222 function bluesky_unfollow(array &$hook_data)
 223 {
 224         $token = bluesky_get_token($hook_data['uid']);
 225         if (empty($token)) {
 226                 return;
 227         }
 228
 229         if ($hook_data['contact']['network'] != Protocol::BLUESKY) {
 230                 return;
 231         }
 232
 233         $data = bluesky_xrpc_get($hook_data['uid'], 'app.bsky.actor.getProfile', ['actor' => $hook_data['contact']['url']]);
 234         if (empty($data->viewer) || empty($data->viewer->following)) {
 235                 return;
 236         }
 237
 238         bluesky_delete_post($data->viewer->following, $hook_data['uid']);
 239
 240         $hook_data['result'] = true;
 241 }
 242
 243 function bluesky_block(array &$hook_data)
 244 {
 245         $token = bluesky_get_token($hook_data['uid']);
 246         if (empty($token)) {
 247                 return;
 248         }
 249
 250         Logger::debug('Check if contact is bluesky', ['data' => $hook_data]);
 251         $contact = DBA::selectFirst('contact', [], ['network' => Protocol::BLUESKY, 'url' => $hook_data['url'], 'uid' => [0, $hook_data['uid']]]);
 252         if (empty($contact)) {
 253                 return;
 254         }
 255
 256         $record = [
 257                 'subject'   => $contact['url'],
 258                 'createdAt' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 259                 '$type'     => 'app.bsky.graph.block'
 260         ];
 261
 262         $post = [
 263                 'collection' => 'app.bsky.graph.block',
 264                 'repo'       => DI::pConfig()->get($hook_data['uid'], 'bluesky', 'did'),
 265                 'record'     => $record
 266         ];
 267
 268         $activity = bluesky_xrpc_post($hook_data['uid'], 'com.atproto.repo.createRecord', $post);
 269         if (!empty($activity->uri)) {
 270                 $cdata = Contact::getPublicAndUserContactID($hook_data['contact']['id'], $hook_data['uid']);
 271                 if (!empty($cdata['user'])) {
 272                         Contact::remove($cdata['user']);
 273                 }
 274                 Logger::debug('Successfully blocked contact', ['url' => $hook_data['contact']['url'], 'uri' => $activity->uri]);
 275         }
 276 }
 277
 278 function bluesky_unblock(array &$hook_data)
 279 {
 280         $token = bluesky_get_token($hook_data['uid']);
 281         if (empty($token)) {
 282                 return;
 283         }
 284
 285         if ($hook_data['contact']['network'] != Protocol::BLUESKY) {
 286                 return;
 287         }
 288
 289         $data = bluesky_xrpc_get($hook_data['uid'], 'app.bsky.actor.getProfile', ['actor' => $hook_data['contact']['url']]);
 290         if (empty($data->viewer) || empty($data->viewer->blocking)) {
 291                 return;
 292         }
 293
 294         bluesky_delete_post($data->viewer->blocking, $hook_data['uid']);
 295
 296         $hook_data['result'] = true;
 297 }
 298
 299 function bluesky_settings(array &$data)
 300 {
 301         if (!DI::userSession()->getLocalUserId()) {
 302                 return;
 303         }
 304
 305         $enabled      = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post') ?? false;
 306         $def_enabled  = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post_by_default') ?? false;
 307         $host         = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'host') ?: 'https://bsky.social';
 308         $handle       = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'handle');
 309         $did          = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'did');
 310         $token        = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'access_token');
 311         $import       = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'import') ?? false;
 312         $import_feeds = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'import_feeds') ?? false;
 313
 314         $status = $token ? DI::l10n()->t("You are authenticated to Bluesky. For security reasons the password isn't stored.") : DI::l10n()->t('You are not authenticated. Please enter the app password.');
 315
 316         $t    = Renderer::getMarkupTemplate('connector_settings.tpl', 'addon/bluesky/');
 317         $html = Renderer::replaceMacros($t, [
 318                 '$enable'       => ['bluesky', DI::l10n()->t('Enable Bluesky Post Addon'), $enabled],
 319                 '$bydefault'    => ['bluesky_bydefault', DI::l10n()->t('Post to Bluesky by default'), $def_enabled],
 320                 '$import'       => ['bluesky_import', DI::l10n()->t('Import the remote timeline'), $import],
 321                 '$import_feeds' => ['bluesky_import_feeds', DI::l10n()->t('Import the pinned feeds'), $import_feeds, DI::l10n()->t('When activated, Posts will be imported from all the feeds that you pinned in Bluesky.')],
 322                 '$host'         => ['bluesky_host', DI::l10n()->t('Bluesky host'), $host, '', '', 'readonly'],
 323                 '$handle'       => ['bluesky_handle', DI::l10n()->t('Bluesky handle'), $handle],
 324                 '$did'          => ['bluesky_did', DI::l10n()->t('Bluesky DID'), $did, DI::l10n()->t('This is the unique identifier. It will be fetched automatically, when the handle is entered.'), '', 'readonly'],
 325                 '$password'     => ['bluesky_password', DI::l10n()->t('Bluesky app password'), '', DI::l10n()->t("Please don't add your real password here, but instead create a specific app password in the Bluesky settings.")],
 326                 '$status'       => $status
 327         ]);
 328
 329         $data = [
 330                 'connector' => 'bluesky',
 331                 'title'     => DI::l10n()->t('Bluesky Import/Export'),
 332                 'image'     => 'images/bluesky.jpg',
 333                 'enabled'   => $enabled,
 334                 'html'      => $html,
 335         ];
 336 }
 337
 338 function bluesky_settings_post(array &$b)
 339 {
 340         if (empty($_POST['bluesky-submit'])) {
 341                 return;
 342         }
 343
 344         $old_host   = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'host');
 345         $old_handle = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'handle');
 346         $old_did    = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'did');
 347
 348         $host   = $_POST['bluesky_host'];
 349         $handle = $_POST['bluesky_handle'];
 350
 351         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'post',            intval($_POST['bluesky']));
 352         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'post_by_default', intval($_POST['bluesky_bydefault']));
 353         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'host',            $host);
 354         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'handle',          $handle);
 355         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'import',          intval($_POST['bluesky_import']));
 356         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'import_feeds',    intval($_POST['bluesky_import_feeds']));
 357
 358         if (!empty($host) && !empty($handle)) {
 359                 if (empty($old_did) || $old_host != $host || $old_handle != $handle) {
 360                         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'did', bluesky_get_did(DI::userSession()->getLocalUserId(), DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'handle')));
 361                 }
 362         } else {
 363                 DI::pConfig()->delete(DI::userSession()->getLocalUserId(), 'bluesky', 'did');
 364         }
 365
 366         if (!empty($_POST['bluesky_password'])) {
 367                 bluesky_create_token(DI::userSession()->getLocalUserId(), $_POST['bluesky_password']);
 368         }
 369 }
 370
 371 function bluesky_jot_nets(array &$jotnets_fields)
 372 {
 373         if (!DI::userSession()->getLocalUserId()) {
 374                 return;
 375         }
 376
 377         if (DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post')) {
 378                 $jotnets_fields[] = [
 379                         'type'  => 'checkbox',
 380                         'field' => [
 381                                 'bluesky_enable',
 382                                 DI::l10n()->t('Post to Bluesky'),
 383                                 DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post_by_default')
 384                         ]
 385                 ];
 386         }
 387 }
 388
 389 function bluesky_cron()
 390 {
 391         $last = DI::keyValue()->get('bluesky_last_poll');
 392
 393         $poll_interval = intval(DI::config()->get('bluesky', 'poll_interval'));
 394         if (!$poll_interval) {
 395                 $poll_interval = BLUESKY_DEFAULT_POLL_INTERVAL;
 396         }
 397
 398         if ($last) {
 399                 $next = $last + ($poll_interval * 60);
 400                 if ($next > time()) {
 401                         Logger::notice('poll interval not reached');
 402                         return;
 403                 }
 404         }
 405         Logger::notice('cron_start');
 406
 407         $abandon_days = intval(DI::config()->get('system', 'account_abandon_days'));
 408         if ($abandon_days < 1) {
 409                 $abandon_days = 0;
 410         }
 411
 412         $abandon_limit = date(DateTimeFormat::MYSQL, time() - $abandon_days * 86400);
 413
 414         $pconfigs = DBA::selectToArray('pconfig', [], ['cat' => 'bluesky', 'k' => 'import', 'v' => true]);
 415         foreach ($pconfigs as $pconfig) {
 416                 if ($abandon_days != 0) {
 417                         if (!DBA::exists('user', ["`uid` = ? AND `login_date` >= ?", $pconfig['uid'], $abandon_limit])) {
 418                                 Logger::notice('abandoned account: timeline from user will not be imported', ['user' => $pconfig['uid']]);
 419                                 continue;
 420                         }
 421                 }
 422
 423                 // Refresh the token now, so that it doesn't need to be refreshed in parallel by the following workers
 424                 bluesky_get_token($pconfig['uid']);
 425
 426                 Worker::add(['priority' => Worker::PRIORITY_MEDIUM, 'force_priority' => true], 'addon/bluesky/bluesky_timeline.php', $pconfig['uid']);
 427                 Worker::add(['priority' => Worker::PRIORITY_MEDIUM, 'force_priority' => true], 'addon/bluesky/bluesky_notifications.php', $pconfig['uid']);
 428
 429                 if (DI::pConfig()->get($pconfig['uid'], 'bluesky', 'import_feeds')) {
 430                         $feeds = bluesky_get_feeds($pconfig['uid']);
 431                         foreach ($feeds as $feed) {
 432                                 Worker::add(['priority' => Worker::PRIORITY_MEDIUM, 'force_priority' => true], 'addon/bluesky/bluesky_feed.php', $pconfig['uid'], $feed);
 433                         }
 434                 }
 435         }
 436
 437         $last_clean = DI::keyValue()->get('bluesky_last_clean');
 438         if (empty($last_clean) || ($last_clean + 86400 < time())) {
 439                 Logger::notice('Start contact cleanup');
 440                 $contacts = DBA::select('account-user-view', ['id', 'pid'], ["`network` = ? AND `uid` != ? AND `rel` = ?", Protocol::BLUESKY, 0, Contact::NOTHING]);
 441                 while ($contact = DBA::fetch($contacts)) {
 442                         Worker::add(Worker::PRIORITY_LOW, 'MergeContact', $contact['pid'], $contact['id'], 0);
 443                 }
 444                 DBA::close($contacts);
 445                 DI::keyValue()->set('bluesky_last_clean', time());
 446                 Logger::notice('Contact cleanup done');
 447         }
 448
 449         Logger::notice('cron_end');
 450
 451         DI::keyValue()->set('bluesky_last_poll', time());
 452 }
 453
 454 function bluesky_hook_fork(array &$b)
 455 {
 456         if ($b['name'] != 'notifier_normal') {
 457                 return;
 458         }
 459
 460         $post = $b['data'];
 461
 462         if (($post['created'] !== $post['edited']) && !$post['deleted']) {
 463                 DI::logger()->info('Editing is not supported by the addon');
 464                 $b['execute'] = false;
 465                 return;
 466         }
 467
 468         if (DI::pConfig()->get($post['uid'], 'bluesky', 'import')) {
 469                 // Don't post if it isn't a reply to a bluesky post
 470                 if (($post['parent'] != $post['id']) && !Post::exists(['id' => $post['parent'], 'network' => Protocol::BLUESKY])) {
 471                         Logger::notice('No bluesky parent found', ['item' => $post['id']]);
 472                         $b['execute'] = false;
 473                         return;
 474                 }
 475         } elseif (!strstr($post['postopts'] ?? '', 'bluesky') || ($post['parent'] != $post['id']) || $post['private']) {
 476                 DI::logger()->info('Activities are never exported when we don\'t import the bluesky timeline', ['uid' => $post['uid']]);
 477                 $b['execute'] = false;
 478                 return;
 479         }
 480 }
 481
 482 function bluesky_post_local(array &$b)
 483 {
 484         if ($b['edit']) {
 485                 return;
 486         }
 487
 488         if (!DI::userSession()->getLocalUserId() || (DI::userSession()->getLocalUserId() != $b['uid'])) {
 489                 return;
 490         }
 491
 492         if ($b['private'] || $b['parent']) {
 493                 return;
 494         }
 495
 496         $bluesky_post   = intval(DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post'));
 497         $bluesky_enable = (($bluesky_post && !empty($_REQUEST['bluesky_enable'])) ? intval($_REQUEST['bluesky_enable']) : 0);
 498
 499         // if API is used, default to the chosen settings
 500         if ($b['api_source'] && intval(DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post_by_default'))) {
 501                 $bluesky_enable = 1;
 502         }
 503
 504         if (!$bluesky_enable) {
 505                 return;
 506         }
 507
 508         if (strlen($b['postopts'])) {
 509                 $b['postopts'] .= ',';
 510         }
 511
 512         $b['postopts'] .= 'bluesky';
 513 }
 514
 515 function bluesky_send(array &$b)
 516 {
 517         if (($b['created'] !== $b['edited']) && !$b['deleted']) {
 518                 return;
 519         }
 520
 521         if ($b['gravity'] != Item::GRAVITY_PARENT) {
 522                 Logger::debug('Got comment', ['item' => $b]);
 523
 524                 if ($b['deleted']) {
 525                         $uri = bluesky_get_uri_class($b['uri']);
 526                         if (empty($uri)) {
 527                                 Logger::debug('Not a bluesky post', ['uri' => $b['uri']]);
 528                                 return;
 529                         }
 530                         bluesky_delete_post($b['uri'], $b['uid']);
 531                         return;
 532                 }
 533
 534                 $root   = bluesky_get_uri_class($b['parent-uri']);
 535                 $parent = bluesky_get_uri_class($b['thr-parent']);
 536
 537                 if (empty($root) || empty($parent)) {
 538                         Logger::debug('No bluesky post', ['parent' => $b['parent'], 'thr-parent' => $b['thr-parent']]);
 539                         return;
 540                 }
 541
 542                 if ($b['gravity'] == Item::GRAVITY_COMMENT) {
 543                         Logger::debug('Posting comment', ['root' => $root, 'parent' => $parent]);
 544                         bluesky_create_post($b, $root, $parent);
 545                         return;
 546                 } elseif (in_array($b['verb'], [Activity::LIKE, Activity::ANNOUNCE])) {
 547                         bluesky_create_activity($b, $parent);
 548                 }
 549                 return;
 550         } elseif ($b['private'] || !strstr($b['postopts'], 'bluesky')) {
 551                 return;
 552         }
 553
 554         bluesky_create_post($b);
 555 }
 556
 557 function bluesky_create_activity(array $item, stdClass $parent = null)
 558 {
 559         $uid = $item['uid'];
 560         $token = bluesky_get_token($uid);
 561         if (empty($token)) {
 562                 return;
 563         }
 564
 565         $did  = DI::pConfig()->get($uid, 'bluesky', 'did');
 566
 567         if ($item['verb'] == Activity::LIKE) {
 568                 $record = [
 569                         'subject'   => $parent,
 570                         'createdAt' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 571                         '$type'     => 'app.bsky.feed.like'
 572                 ];
 573
 574                 $post = [
 575                         'collection' => 'app.bsky.feed.like',
 576                         'repo'       => $did,
 577                         'record'     => $record
 578                 ];
 579         } elseif ($item['verb'] == Activity::ANNOUNCE) {
 580                 $record = [
 581                         'subject'   => $parent,
 582                         'createdAt' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 583                         '$type'     => 'app.bsky.feed.repost'
 584                 ];
 585
 586                 $post = [
 587                         'collection' => 'app.bsky.feed.repost',
 588                         'repo'       => $did,
 589                         'record'     => $record
 590                 ];
 591         }
 592
 593         $activity = bluesky_xrpc_post($uid, 'com.atproto.repo.createRecord', $post);
 594         if (empty($activity)) {
 595                 return;
 596         }
 597         Logger::debug('Activity done', ['return' => $activity]);
 598         $uri = bluesky_get_uri($activity);
 599         Item::update(['extid' => $uri], ['id' => $item['id']]);
 600         Logger::debug('Set extid', ['id' => $item['id'], 'extid' => $activity]);
 601 }
 602
 603 function bluesky_create_post(array $item, stdClass $root = null, stdClass $parent = null)
 604 {
 605         $uid = $item['uid'];
 606         $token = bluesky_get_token($uid);
 607         if (empty($token)) {
 608                 return;
 609         }
 610
 611         $did  = DI::pConfig()->get($uid, 'bluesky', 'did');
 612         $urls = bluesky_get_urls(Post\Media::removeFromBody($item['body']));
 613         $item['body'] = $urls['body'];
 614
 615         $msg = Plaintext::getPost($item, 300, false, BBCode::BLUESKY);
 616         foreach ($msg['parts'] as $key => $part) {
 617
 618                 $facets = bluesky_get_facets($part, $urls['urls']);
 619
 620                 $record = [
 621                         'text'      => $facets['body'],
 622                         'createdAt' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 623                         '$type'     => 'app.bsky.feed.post'
 624                 ];
 625
 626                 if (!empty($facets['facets'])) {
 627                         $record['facets'] = $facets['facets'];
 628                 }
 629
 630                 if (!empty($root)) {
 631                         $record['reply'] = ['root' => $root, 'parent' => $parent];
 632                 }
 633
 634                 if ($key == count($msg['parts']) - 1) {
 635                         $record = bluesky_add_embed($uid, $msg, $record);
 636                 }
 637
 638                 $post = [
 639                         'collection' => 'app.bsky.feed.post',
 640                         'repo'       => $did,
 641                         'record'     => $record
 642                 ];
 643
 644                 $parent = bluesky_xrpc_post($uid, 'com.atproto.repo.createRecord', $post);
 645                 if (empty($parent)) {
 646                         return;
 647                 }
 648                 Logger::debug('Posting done', ['return' => $parent]);
 649                 if (empty($root)) {
 650                         $root = $parent;
 651                 }
 652                 if (($key == 0) && ($item['gravity'] != Item::GRAVITY_PARENT)) {
 653                         $uri = bluesky_get_uri($parent);
 654                         Item::update(['extid' => $uri], ['id' => $item['id']]);
 655                         Logger::debug('Set extid', ['id' => $item['id'], 'extid' => $uri]);
 656                 }
 657         }
 658 }
 659
 660 function bluesky_get_urls(string $body): array
 661 {
 662         // Remove all hashtag and mention links
 663         $body = preg_replace("/([#@!])\[url\=(.*?)\](.*?)\[\/url\]/ism", '$1$3', $body);
 664
 665         $urls = [];
 666
 667         // Search for pure links
 668         if (preg_match_all("/\[url\](https?:.*?)\[\/url\]/ism", $body, $matches, PREG_SET_ORDER)) {
 669                 foreach ($matches as $match) {
 670                         $text = Strings::getStyledURL($match[1]);
 671                         $hash = bluesky_get_hash_for_url($match[0], mb_strlen($text));
 672                         $urls[] = ['url' => $match[1], 'text' => $text, 'hash' => $hash];
 673                         $body = str_replace($match[0], $hash, $body);
 674                 }
 675         }
 676
 677         // Search for links with descriptions
 678         if (preg_match_all("/\[url\=(https?:.*?)\](.*?)\[\/url\]/ism", $body, $matches, PREG_SET_ORDER)) {
 679                 foreach ($matches as $match) {
 680                         if ($match[1] == $match[2]) {
 681                                 $text = Strings::getStyledURL($match[1]);
 682                         } else {
 683                                 $text = $match[2];
 684                         }
 685                         if (mb_strlen($text) < 100) {
 686                                 $hash = bluesky_get_hash_for_url($match[0], mb_strlen($text));
 687                                 $urls[] = ['url' => $match[1], 'text' => $text, 'hash' => $hash];
 688                                 $body = str_replace($match[0], $hash, $body);
 689                         } else {
 690                                 $text = Strings::getStyledURL($match[1]);
 691                                 $hash = bluesky_get_hash_for_url($match[0], mb_strlen($text));
 692                                 $urls[] = ['url' => $match[1], 'text' => $text, 'hash' => $hash];
 693                                 $body = str_replace($match[0], $text . ' ' . $hash, $body);
 694                         }
 695                 }
 696         }
 697
 698         return ['body' => $body, 'urls' => $urls];
 699 }
 700
 701 function bluesky_get_hash_for_url(string $text, int $linklength): string
 702 {
 703         if ($linklength <= 10) {
 704                 return '|' . hash('crc32', $text) . '|';
 705         }
 706         return substr('|' . hash('crc32', $text) . base64_encode($text), 0, $linklength - 2) . '|';
 707 }
 708
 709 function bluesky_get_facets(string $body, array $urls): array
 710 {
 711         $facets = [];
 712
 713         foreach ($urls as $url) {
 714                 $pos = strpos($body, $url['hash']);
 715                 if ($pos === false) {
 716                         continue;
 717                 }
 718                 if ($pos > 0) {
 719                         $prefix = substr($body, 0, $pos);
 720                 } else {
 721                         $prefix = '';
 722                 }
 723
 724                 $body = $prefix . $url['text'] . substr($body, $pos + strlen($url['hash']));
 725
 726                 $facet = new stdClass;
 727                 $facet->index = new stdClass;
 728                 $facet->index->byteEnd   = $pos + strlen($url['text']);
 729                 $facet->index->byteStart = $pos;
 730
 731                 $feature = new stdClass;
 732                 $feature->uri = $url['url'];
 733                 $type = '$type';
 734                 $feature->$type = 'app.bsky.richtext.facet#link';
 735
 736                 $facet->features = [$feature];
 737                 $facets[] = $facet;
 738         }
 739
 740         return ['facets' => $facets, 'body' => $body];
 741 }
 742
 743 function bluesky_add_embed(int $uid, array $msg, array $record): array
 744 {
 745         if (($msg['type'] != 'link') && !empty($msg['images'])) {
 746                 $images = [];
 747                 foreach ($msg['images'] as $image) {
 748                         $photo = Photo::selectFirst(['resource-id'], ['id' => $image['id']]);
 749                         $photo = Photo::selectFirst([], ["`resource-id` = ? AND `scale` > ?", $photo['resource-id'], 0], ['order' => ['scale']]);
 750                         $blob = bluesky_upload_blob($uid, $photo);
 751                         if (!empty($blob) && count($images) < 4) {
 752                                 $images[] = ['alt' => $image['description'] ?? '', 'image' => $blob];
 753                         }
 754                 }
 755                 if (!empty($images)) {
 756                         $record['embed'] = ['$type' => 'app.bsky.embed.images', 'images' => $images];
 757                 }
 758         } elseif ($msg['type'] == 'link') {
 759                 $record['embed'] = [
 760                         '$type'    => 'app.bsky.embed.external',
 761                         'external' => [
 762                                 'uri'         => $msg['url'],
 763                                 'title'       => $msg['title'],
 764                                 'description' => $msg['description'],
 765                         ]
 766                 ];
 767                 if (!empty($msg['image'])) {
 768                         $photo = Photo::createPhotoForExternalResource($msg['image']);
 769                         $blob = bluesky_upload_blob($uid, $photo);
 770                         if (!empty($blob)) {
 771                                 $record['embed']['external']['thumb'] = $blob;
 772                         }
 773                 }
 774         }
 775         return $record;
 776 }
 777
 778 function bluesky_upload_blob(int $uid, array $photo): ?stdClass
 779 {
 780         $content = Photo::getImageForPhoto($photo);
 781         $data = bluesky_post($uid, '/xrpc/com.atproto.repo.uploadBlob', $content, ['Content-type' => $photo['type'], 'Authorization' => ['Bearer ' . bluesky_get_token($uid)]]);
 782         if (empty($data)) {
 783                 return null;
 784         }
 785
 786         Logger::debug('Uploaded blob', ['return' => $data]);
 787         return $data->blob;
 788 }
 789
 790 function bluesky_delete_post(string $uri, int $uid)
 791 {
 792         $parts = bluesky_get_uri_parts($uri);
 793         if (empty($parts)) {
 794                 Logger::debug('No uri delected', ['uri' => $uri]);
 795                 return;
 796         }
 797         bluesky_xrpc_post($uid, 'com.atproto.repo.deleteRecord', $parts);
 798         Logger::debug('Deleted', ['parts' => $parts]);
 799 }
 800
 801 function bluesky_fetch_timeline(int $uid)
 802 {
 803         $data = bluesky_xrpc_get($uid, 'app.bsky.feed.getTimeline');
 804         if (empty($data)) {
 805                 return;
 806         }
 807
 808         if (empty($data->feed)) {
 809                 return;
 810         }
 811
 812         foreach (array_reverse($data->feed) as $entry) {
 813                 bluesky_process_post($entry->post, $uid, Item::PR_NONE, 0);
 814                 if (!empty($entry->reason)) {
 815                         bluesky_process_reason($entry->reason, bluesky_get_uri($entry->post), $uid);
 816                 }
 817         }
 818
 819         // @todo Support paging
 820         // [cursor] => 1684670516000::bafyreidq3ilwslmlx72jf5vrk367xcc63s6lrhzlyup2bi3zwcvso6w2vi
 821 }
 822
 823 function bluesky_process_reason(stdClass $reason, string $uri, int $uid)
 824 {
 825         $type = '$type';
 826         if ($reason->$type != 'app.bsky.feed.defs#reasonRepost') {
 827                 return;
 828         }
 829
 830         $contact = bluesky_get_contact($reason->by, $uid, $uid);
 831
 832         $item = [
 833                 'network'       => Protocol::BLUESKY,
 834                 'uid'           => $uid,
 835                 'wall'          => false,
 836                 'uri'           => $reason->by->did . '/app.bsky.feed.repost/' . $reason->indexedAt,
 837                 'private'       => Item::UNLISTED,
 838                 'verb'          => Activity::POST,
 839                 'contact-id'    => $contact['id'],
 840                 'author-name'   => $contact['name'],
 841                 'author-link'   => $contact['url'],
 842                 'author-avatar' => $contact['avatar'],
 843                 'verb'          => Activity::ANNOUNCE,
 844                 'body'          => Activity::ANNOUNCE,
 845                 'gravity'       => Item::GRAVITY_ACTIVITY,
 846                 'object-type'   => Activity\ObjectType::NOTE,
 847                 'thr-parent'    => $uri,
 848         ];
 849
 850         if (Post::exists(['uri' => $item['uri'], 'uid' => $uid])) {
 851                 return;
 852         }
 853
 854         $item['guid']         = Item::guidFromUri($item['uri'], $contact['alias']);
 855         $item['owner-name']   = $item['author-name'];
 856         $item['owner-link']   = $item['author-link'];
 857         $item['owner-avatar'] = $item['author-avatar'];
 858         if (Item::insert($item)) {
 859                 $cdata = Contact::getPublicAndUserContactID($contact['id'], $uid);
 860                 Item::update(['post-reason' => Item::PR_ANNOUNCEMENT, 'causer-id' => $cdata['public']], ['uri' => $uri, 'uid' => $uid]);
 861         }
 862 }
 863
 864 function bluesky_fetch_notifications(int $uid)
 865 {
 866         $data = bluesky_xrpc_get($uid, 'app.bsky.notification.listNotifications');
 867         if (empty($data->notifications)) {
 868                 return;
 869         }
 870         foreach ($data->notifications as $notification) {
 871                 $uri = bluesky_get_uri($notification);
 872                 if (Post::exists(['uri' => $uri, 'uid' => $uid]) || Post::exists(['extid' => $uri, 'uid' => $uid])) {
 873                         Logger::debug('Notification already processed', ['uid' => $uid, 'reason' => $notification->reason, 'uri' => $uri, 'indexedAt' => $notification->indexedAt]);
 874                         continue;
 875                 }
 876                 Logger::debug('Process notification', ['uid' => $uid, 'reason' => $notification->reason, 'uri' => $uri, 'indexedAt' => $notification->indexedAt]);
 877                 switch ($notification->reason) {
 878                         case 'like':
 879                                 $item = bluesky_get_header($notification, $uri, $uid, $uid);
 880                                 $item['gravity'] = Item::GRAVITY_ACTIVITY;
 881                                 $item['body'] = $item['verb'] = Activity::LIKE;
 882                                 $item['thr-parent'] = bluesky_get_uri($notification->record->subject);
 883                                 $item['thr-parent'] = bluesky_fetch_missing_post($item['thr-parent'], $uid, $item['contact-id'], 0);
 884                                 if (!empty($item['thr-parent'])) {
 885                                         $data = Item::insert($item);
 886                                         Logger::debug('Got like', ['uid' => $uid, 'result' => $data, 'uri' => $uri]);
 887                                 } else {
 888                                         Logger::info('Thread parent not found', ['uid' => $uid, 'parent' => $$item['thr-parent'], 'uri' => $uri]);
 889                                 }
 890                         break;
 891
 892                         case 'repost':
 893                                 $item = bluesky_get_header($notification, $uri, $uid, $uid);
 894                                 $item['gravity'] = Item::GRAVITY_ACTIVITY;
 895                                 $item['body'] = $item['verb'] = Activity::ANNOUNCE;
 896                                 $item['thr-parent'] = bluesky_get_uri($notification->record->subject);
 897                                 $item['thr-parent'] = bluesky_fetch_missing_post($item['thr-parent'], $uid, $item['contact-id'], 0);
 898                                 if (!empty($item['thr-parent'])) {
 899                                         $data = Item::insert($item);
 900                                         Logger::debug('Got repost', ['uid' => $uid, 'result' => $data, 'uri' => $uri]);
 901                                 } else {
 902                                         Logger::info('Thread parent not found', ['uid' => $uid, 'parent' => $$item['thr-parent'], 'uri' => $uri]);
 903                                 }
 904                         break;
 905
 906                         case 'follow':
 907                                 $contact = bluesky_get_contact($notification->author, $uid, $uid);
 908                                 Logger::debug('New follower', ['uid' => $uid, 'nick' => $contact['nick'], 'uri' => $uri]);
 909                                 break;
 910
 911                         case 'mention':
 912                                 $data = bluesky_process_post($notification, $uid, Item::PR_PUSHED, 0);
 913                                 Logger::debug('Got mention', ['uid' => $uid, 'result' => $data, 'uri' => $uri]);
 914                                 break;
 915
 916                         case 'reply':
 917                                 $data = bluesky_process_post($notification, $uid, Item::PR_PUSHED, 0);
 918                                 Logger::debug('Got reply', ['uid' => $uid, 'result' => $data, 'uri' => $uri]);
 919                                 break;
 920
 921                         case 'quote':
 922                                 $data = bluesky_process_post($notification, $uid, Item::PR_PUSHED, 0);
 923                                 Logger::debug('Got quote', ['uid' => $uid, 'result' => $data, 'uri' => $uri]);
 924                                 break;
 925
 926                         default:
 927                                 Logger::notice('Unhandled reason', ['reason' => $notification->reason, 'uri' => $uri]);
 928                                 break;
 929                 }
 930         }
 931 }
 932
 933 function bluesky_fetch_feed(int $uid, string $feed)
 934 {
 935         $data = bluesky_xrpc_get($uid, 'app.bsky.feed.getFeed', ['feed' => $feed]);
 936         if (empty($data)) {
 937                 return;
 938         }
 939
 940         if (empty($data->feed)) {
 941                 return;
 942         }
 943
 944         foreach (array_reverse($data->feed) as $entry) {
 945                 if (!Relay::isWantedLanguage($entry->post->record->text)) {
 946                         Logger::debug('Unwanted language detected', ['text' => $entry->post->record->text]);
 947                         continue;
 948                 }
 949                 bluesky_process_post($entry->post, $uid, Item::PR_TAG, 0);
 950                 if (!empty($entry->reason)) {
 951                         bluesky_process_reason($entry->reason, bluesky_get_uri($entry->post), $uid);
 952                 }
 953         }
 954 }
 955
 956 function bluesky_process_post(stdClass $post, int $uid, int $post_reason, $level): int
 957 {
 958         $uri = bluesky_get_uri($post);
 959
 960         if (Post::exists(['uri' => $uri, 'uid' => $uid]) || Post::exists(['extid' => $uri, 'uid' => $uid])) {
 961                 return 0;
 962         }
 963
 964         Logger::debug('Importing post', ['uid' => $uid, 'indexedAt' => $post->indexedAt, 'uri' => $post->uri, 'cid' => $post->cid, 'root' => $post->record->reply->root ?? '']);
 965
 966         $item = bluesky_get_header($post, $uri, $uid, $uid);
 967         $item = bluesky_get_content($item, $post->record, $uri, $uid, $level);
 968         if (empty($item)) {
 969                 return 0;
 970         }
 971
 972         if (!empty($post->embed)) {
 973                 $item = bluesky_add_media($post->embed, $item, $uid, $level);
 974         }
 975
 976         if (empty($item['post-reason'])) {
 977                 $item['post-reason'] = $post_reason;
 978         }
 979
 980         return item::insert($item);
 981 }
 982
 983 function bluesky_get_header(stdClass $post, string $uri, int $uid, int $fetch_uid): array
 984 {
 985         $parts = bluesky_get_uri_parts($uri);
 986         if (empty($post->author)) {
 987                 return [];
 988         }
 989         $contact = bluesky_get_contact($post->author, $uid, $fetch_uid);
 990         $item = [
 991                 'network'       => Protocol::BLUESKY,
 992                 'uid'           => $uid,
 993                 'wall'          => false,
 994                 'uri'           => $uri,
 995                 'guid'          => $post->cid,
 996                 'private'       => Item::UNLISTED,
 997                 'verb'          => Activity::POST,
 998                 'contact-id'    => $contact['id'],
 999                 'author-name'   => $contact['name'],
1000                 'author-link'   => $contact['url'],
1001                 'author-avatar' => $contact['avatar'],
1002                 'plink'         => $contact['alias'] . '/post/' . $parts->rkey,
1003         ];
1004
1005         $item['uri-id']       = ItemURI::getIdByURI($uri);
1006         $item['owner-name']   = $item['author-name'];
1007         $item['owner-link']   = $item['author-link'];
1008         $item['owner-avatar'] = $item['author-avatar'];
1009
1010         if (in_array($contact['rel'], [Contact::SHARING, Contact::FRIEND])) {
1011                 $item['post-reason'] = Item::PR_FOLLOWER;
1012         }
1013
1014         return $item;
1015 }
1016
1017 function bluesky_get_content(array $item, stdClass $record, string $uri, int $uid, int $level): array
1018 {
1019         if (empty($item)) {
1020                 return [];
1021         }
1022
1023         if (!empty($record->reply)) {
1024                 $item['parent-uri'] = bluesky_get_uri($record->reply->root);
1025                 if ($item['parent-uri'] != $uri) {
1026                         $item['parent-uri'] = bluesky_fetch_missing_post($item['parent-uri'], $uid, $item['contact-id'], $level);
1027                         if (empty($item['parent-uri'])) {
1028                                 return [];
1029                         }
1030                 }
1031
1032                 $item['thr-parent'] = bluesky_get_uri($record->reply->parent);
1033                 if (!in_array($item['thr-parent'], [$uri, $item['parent-uri']])) {
1034                         $item['thr-parent'] = bluesky_fetch_missing_post($item['thr-parent'], $uid, $item['contact-id'], $level, $item['parent-uri']);
1035                         if (empty($item['thr-parent'])) {
1036                                 return [];
1037                         }
1038                 }
1039         }
1040
1041         $item['body']    = bluesky_get_text($record);
1042         $item['created'] = DateTimeFormat::utc($record->createdAt, DateTimeFormat::MYSQL);
1043         return $item;
1044 }
1045
1046 function bluesky_get_text(stdClass $record): string
1047 {
1048         $text = $record->text;
1049
1050         if (empty($record->facets)) {
1051                 return $text;
1052         }
1053
1054         $facets = [];
1055         foreach ($record->facets as $facet) {
1056                 $facets[$facet->index->byteStart] = $facet;
1057         }
1058         krsort($facets);
1059
1060         foreach ($facets as $facet) {
1061                 $prefix   = substr($text, 0, $facet->index->byteStart);
1062                 $linktext = substr($text, $facet->index->byteStart, $facet->index->byteEnd - $facet->index->byteStart);
1063                 $suffix   = substr($text, $facet->index->byteEnd);
1064
1065                 $url  = '';
1066                 $type = '$type';
1067                 foreach ($facet->features as $feature) {
1068
1069                         switch ($feature->$type) {
1070                                 case 'app.bsky.richtext.facet#link':
1071                                         $url = $feature->uri;
1072                                         break;
1073
1074                                 case 'app.bsky.richtext.facet#mention':
1075                                         $contact = Contact::getByURL($feature->did, null, ['id']);
1076                                         if (!empty($contact['id'])) {
1077                                                 $url = DI::baseUrl() . '/contact/' . $contact['id'];
1078                                                 if (substr($linktext, 0, 1) == '@') {
1079                                                         $prefix .= '@';
1080                                                         $linktext = substr($linktext, 1);
1081                                                 }
1082                                         }
1083                                         break;
1084
1085                                 default:
1086                                         Logger::notice('Unhandled feature type', ['type' => $feature->$type, 'record' => $record]);
1087                                         break;
1088                         }
1089                 }
1090                 if (!empty($url)) {
1091                         $text = $prefix . '[url=' . $url . ']' . $linktext . '[/url]' . $suffix;
1092                 }
1093         }
1094         return $text;
1095 }
1096
1097 function bluesky_add_media(stdClass $embed, array $item, int $fetch_uid, int $level): array
1098 {
1099         $type = '$type';
1100         switch ($embed->$type) {
1101                 case 'app.bsky.embed.images#view':
1102                         foreach ($embed->images as $image) {
1103                                 $media = [
1104                                         'uri-id'      => $item['uri-id'],
1105                                         'type'        => Post\Media::IMAGE,
1106                                         'url'         => $image->fullsize,
1107                                         'preview'     => $image->thumb,
1108                                         'description' => $image->alt,
1109                                 ];
1110                                 Post\Media::insert($media);
1111                         }
1112                         break;
1113
1114                 case 'app.bsky.embed.external#view':
1115                         $media = [
1116                                 'uri-id' => $item['uri-id'],
1117                                 'type'        => Post\Media::HTML,
1118                                 'url'         => $embed->external->uri,
1119                                 'name'        => $embed->external->title,
1120                                 'description' => $embed->external->description,
1121                         ];
1122                         Post\Media::insert($media);
1123                         break;
1124
1125                 case 'app.bsky.embed.record#view':
1126                         $uri = bluesky_get_uri($embed->record);
1127                         $shared = Post::selectFirst(['uri-id'], ['uri' => $uri, 'uid' => $item['uid']]);
1128                         if (empty($shared)) {
1129                                 $shared = bluesky_get_header($embed->record, $uri, 0, $fetch_uid);
1130                                 $shared = bluesky_get_content($shared, $embed->record->value, $uri, $item['uid'], $level);
1131                                 if (!empty($shared)) {
1132                                         if (!empty($embed->record->embeds)) {
1133                                                 foreach ($embed->record->embeds as $single) {
1134                                                         $shared = bluesky_add_media($single, $shared, $fetch_uid, $level);
1135                                                 }
1136                                         }
1137                                         $id = Item::insert($shared);
1138                                         $shared = Post::selectFirst(['uri-id'], ['id' => $id]);
1139                                 }
1140                         }
1141                         if (!empty($shared)) {
1142                                 $item['quote-uri-id'] = $shared['uri-id'];
1143                         }
1144                         break;
1145
1146                 case 'app.bsky.embed.recordWithMedia#view':
1147                         $uri = bluesky_get_uri($embed->record->record);
1148                         $shared = Post::selectFirst(['uri-id'], ['uri' => $uri, 'uid' => $item['uid']]);
1149                         if (empty($shared)) {
1150                                 $shared = bluesky_get_header($embed->record->record, $uri, 0, $fetch_uid);
1151                                 $shared = bluesky_get_content($shared, $embed->record->record->value, $uri, $item['uid'], $level);
1152                                 if (!empty($shared)) {
1153                                         if (!empty($embed->record->embeds)) {
1154                                                 foreach ($embed->record->record->embeds as $single) {
1155                                                         $shared = bluesky_add_media($single, $shared, $fetch_uid, $level);
1156                                                 }
1157                                         }
1158
1159                                         if (!empty($embed->media)) {
1160                                                 bluesky_add_media($embed->media, $item, $fetch_uid, $level);
1161                                         }
1162
1163                                         $id = Item::insert($shared);
1164                                         $shared = Post::selectFirst(['uri-id'], ['id' => $id]);
1165                                 }
1166                         }
1167                         if (!empty($shared)) {
1168                                 $item['quote-uri-id'] = $shared['uri-id'];
1169                         }
1170                         break;
1171
1172                 default:
1173                         Logger::notice('Unhandled embed type', ['type' => $embed->$type, 'embed' => $embed]);
1174                         break;
1175         }
1176         return $item;
1177 }
1178
1179 function bluesky_get_uri(stdClass $post): string
1180 {
1181         return $post->uri . ':' . $post->cid;
1182 }
1183
1184 function bluesky_get_uri_class(string $uri): ?stdClass
1185 {
1186         if (empty($uri)) {
1187                 return null;
1188         }
1189
1190         $elements = explode(':', $uri);
1191         if (empty($elements) || ($elements[0] != 'at')) {
1192                 $post = Post::selectFirstPost(['extid'], ['uri' => $uri]);
1193                 return bluesky_get_uri_class($post['extid'] ?? '');
1194         }
1195
1196         $class = new stdClass;
1197
1198         $class->cid = array_pop($elements);
1199         $class->uri = implode(':', $elements);
1200
1201         if ((substr_count($class->uri, '/') == 2) && (substr_count($class->cid, '/') == 2)) {
1202                 $class->uri .= ':' . $class->cid;
1203                 $class->cid = '';
1204         }
1205
1206         return $class;
1207 }
1208
1209 function bluesky_get_uri_parts(string $uri): ?stdClass
1210 {
1211         $class = bluesky_get_uri_class($uri);
1212         if (empty($class)) {
1213                 return null;
1214         }
1215
1216         $parts = explode('/', substr($class->uri, 5));
1217
1218         $class = new stdClass;
1219
1220         $class->repo       = $parts[0];
1221         $class->collection = $parts[1];
1222         $class->rkey       = $parts[2];
1223
1224         return $class;
1225 }
1226
1227 function bluesky_fetch_missing_post(string $uri, int $uid, int $causer, int $level, string $fallback = ''): string
1228 {
1229         $fetched_uri = bluesky_fetch_post($uri, $uid);
1230         if (!empty($fetched_uri)) {
1231                 return $fetched_uri;
1232         }
1233
1234         if (++$level > 100) {
1235                 Logger::info('Recursion level too deep', ['level' => $level, 'uid' => $uid, 'uri' => $uri, 'fallback' => $fallback]);
1236                 // When the level is too deep we will fallback to the parent uri.
1237                 // Allthough the threading won't be correct, we at least had stored all posts and won't try again
1238                 return $fallback;
1239         }
1240
1241         $class = bluesky_get_uri_class($uri);
1242         $fetch_uri = $class->uri;
1243
1244         Logger::debug('Fetch missing post', ['level' => $level, 'uid' => $uid, 'uri' => $uri]);
1245         $data = bluesky_xrpc_get($uid, 'app.bsky.feed.getPostThread', ['uri' => $fetch_uri]);
1246         if (empty($data)) {
1247                 Logger::info('Thread was not fetched', ['level' => $level, 'uid' => $uid, 'uri' => $uri, 'fallback' => $fallback]);
1248                 return $fallback;
1249         }
1250
1251         Logger::debug('Reply count', ['replies' => $data->thread->post->replyCount, 'level' => $level, 'uid' => $uid, 'uri' => $uri]);
1252
1253         if ($causer != 0) {
1254                 $cdata = Contact::getPublicAndUserContactID($causer, $uid);
1255         } else {
1256                 $cdata = [];
1257         }
1258
1259         return bluesky_process_thread($data->thread, $uid, $cdata, $level);
1260 }
1261
1262 function bluesky_fetch_post(string $uri, int $uid): string
1263 {
1264         if (Post::exists(['uri' => $uri, 'uid' => [$uid, 0]])) {
1265                 Logger::debug('Post exists', ['uri' => $uri]);
1266                 return $uri;
1267         }
1268
1269         $reply = Post::selectFirst(['uri'], ['extid' => $uri, 'uid' => [$uid, 0]]);
1270         if (!empty($reply['uri'])) {
1271                 Logger::debug('Post with extid exists', ['uri' => $uri]);
1272                 return $reply['uri'];
1273         }
1274         return '';
1275 }
1276
1277 function bluesky_process_thread(stdClass $thread, int $uid, array $cdata, int $level): string
1278 {
1279         $uri = bluesky_get_uri($thread->post);
1280         $fetched_uri = bluesky_fetch_post($uri, $uid);
1281         if (empty($fetched_uri)) {
1282                 Logger::debug('Process missing post', ['uri' => $uri]);
1283                 $item = bluesky_get_header($thread->post, $uri, $uid, $uid);
1284                 $item = bluesky_get_content($item, $thread->post->record, $uri, $uid, $level);
1285                 if (!empty($item)) {
1286                         $item['post-reason'] = Item::PR_FETCHED;
1287
1288                         if (!empty($cdata['public'])) {
1289                                 $item['causer-id']   = $cdata['public'];
1290                         }
1291
1292                         if (!empty($thread->post->embed)) {
1293                                 $item = bluesky_add_media($thread->post->embed, $item, $uid, $level);
1294                         }
1295                         $id = Item::insert($item);
1296                         if (!$id) {
1297                                 Logger::info('Item has not not been stored', ['uri' => $uri]);
1298                                 return '';
1299                         }
1300                         Logger::debug('Stored item', ['id' => $id, 'uri' => $uri]);
1301                 } else {
1302                         Logger::info('Post has not not been fetched', ['uri' => $uri]);
1303                         return '';
1304                 }
1305         } else {
1306                 Logger::debug('Post exists', ['uri' => $uri]);
1307                 $uri = $fetched_uri;
1308         }
1309
1310         foreach ($thread->replies ?? [] as $reply) {
1311                 $reply_uri = bluesky_process_thread($reply, $uid, $cdata, $level);
1312                 Logger::debug('Reply has been processed', ['uri' => $uri, 'reply' => $reply_uri]);
1313         }
1314
1315         return $uri;
1316 }
1317
1318 function bluesky_get_contact(stdClass $author, int $uid, int $fetch_uid): array
1319 {
1320         $condition = ['network' => Protocol::BLUESKY, 'uid' => 0, 'url' => $author->did];
1321         $contact = Contact::selectFirst(['id', 'updated'], $condition);
1322
1323         $update = empty($contact) || $contact['updated'] < DateTimeFormat::utc('now -24 hours');
1324
1325         $public_fields = $fields = bluesky_get_contact_fields($author, $fetch_uid, $update);
1326
1327         $public_fields['uid'] = 0;
1328         $public_fields['rel'] = Contact::NOTHING;
1329
1330         if (empty($contact)) {
1331                 $cid = Contact::insert($public_fields);
1332         } else {
1333                 $cid = $contact['id'];
1334                 Contact::update($public_fields, ['id' => $cid], true);
1335         }
1336
1337         if ($uid != 0) {
1338                 $condition = ['network' => Protocol::BLUESKY, 'uid' => $uid, 'url' => $author->did];
1339
1340                 $contact = Contact::selectFirst(['id', 'rel', 'uid'], $condition);
1341                 if (!isset($fields['rel']) && isset($contact['rel'])) {
1342                         $fields['rel'] = $contact['rel'];
1343                 } elseif (!isset($fields['rel'])) {
1344                         $fields['rel'] = Contact::NOTHING;
1345                 }
1346         }
1347
1348         if (($uid != 0) && ($fields['rel'] != Contact::NOTHING)) {
1349                 if (empty($contact)) {
1350                         $cid = Contact::insert($fields);
1351                 } else {
1352                         $cid = $contact['id'];
1353                         Contact::update($fields, ['id' => $cid], true);
1354                 }
1355                 Logger::debug('Get user contact', ['id' => $cid, 'uid' => $uid, 'update' => $update]);
1356         } else {
1357                 Logger::debug('Get public contact', ['id' => $cid, 'uid' => $uid, 'update' => $update]);
1358         }
1359         if (!empty($author->avatar)) {
1360                 Contact::updateAvatar($cid, $author->avatar);
1361         }
1362
1363         return Contact::getById($cid);
1364 }
1365
1366 function bluesky_get_contact_fields(stdClass $author, int $uid, bool $update): array
1367 {
1368         $fields = [
1369                 'uid'      => $uid,
1370                 'network'  => Protocol::BLUESKY,
1371                 'priority' => 1,
1372                 'writable' => true,
1373                 'blocked'  => false,
1374                 'readonly' => false,
1375                 'pending'  => false,
1376                 'baseurl'  => BLUESKY_HOST,
1377                 'url'      => $author->did,
1378                 'nurl'     => $author->did,
1379                 'alias'    => BLUESKY_HOST . '/profile/' . $author->handle,
1380                 'name'     => $author->displayName ?? $author->handle,
1381                 'nick'     => $author->handle,
1382                 'addr'     => $author->handle,
1383         ];
1384
1385         if (!$update) {
1386                 Logger::debug('Got contact fields', ['uid' => $uid, 'url' => $fields['url']]);
1387                 return $fields;
1388         }
1389
1390         $data = bluesky_xrpc_get($uid, 'app.bsky.actor.getProfile', ['actor' => $author->did]);
1391         if (empty($data)) {
1392                 Logger::debug('Error fetching contact fields', ['uid' => $uid, 'url' => $fields['url']]);
1393                 return $fields;
1394         }
1395
1396         $fields['updated'] = DateTimeFormat::utcNow(DateTimeFormat::MYSQL);
1397
1398         if (!empty($data->description)) {
1399                 $fields['about'] = HTML::toBBCode($data->description);
1400         }
1401
1402         if (!empty($data->banner)) {
1403                 $fields['header'] = $data->banner;
1404         }
1405
1406         if (!empty($data->viewer)) {
1407                 if (!empty($data->viewer->following) && !empty($data->viewer->followedBy)) {
1408                         $fields['rel'] = Contact::FRIEND;
1409                 } elseif (!empty($data->viewer->following) && empty($data->viewer->followedBy)) {
1410                         $fields['rel'] = Contact::SHARING;
1411                 } elseif (empty($data->viewer->following) && !empty($data->viewer->followedBy)) {
1412                         $fields['rel'] = Contact::FOLLOWER;
1413                 } else {
1414                         $fields['rel'] = Contact::NOTHING;
1415                 }
1416         }
1417
1418         Logger::debug('Got updated contact fields', ['uid' => $uid, 'url' => $fields['url']]);
1419         return $fields;
1420 }
1421
1422 function bluesky_get_feeds(int $uid): array
1423 {
1424         $type = '$type';
1425         $preferences = bluesky_get_preferences($uid);
1426         foreach ($preferences->preferences as $preference) {
1427                 if ($preference->$type == 'app.bsky.actor.defs#savedFeedsPref') {
1428                         return $preference->pinned ?? [];
1429                 }
1430         }
1431         return [];
1432 }
1433
1434 function bluesky_get_preferences(int $uid): stdClass
1435 {
1436         $cachekey = 'bluesky:preferences:' . $uid;
1437         $data = DI::cache()->get($cachekey);
1438         if (!is_null($data)) {
1439                 return $data;
1440         }
1441
1442         $data = bluesky_xrpc_get($uid, 'app.bsky.actor.getPreferences');
1443
1444         DI::cache()->set($cachekey, $data, Duration::HOUR);
1445         return $data;
1446 }
1447
1448 function bluesky_get_did(int $uid, string $handle): string
1449 {
1450         $data = bluesky_get($uid, '/xrpc/com.atproto.identity.resolveHandle?handle=' . urlencode($handle));
1451         if (empty($data)) {
1452                 return '';
1453         }
1454         Logger::debug('Got DID', ['return' => $data]);
1455         return $data->did;
1456 }
1457
1458 function bluesky_get_token(int $uid): string
1459 {
1460         $token   = DI::pConfig()->get($uid, 'bluesky', 'access_token');
1461         $created = DI::pConfig()->get($uid, 'bluesky', 'token_created');
1462         if (empty($token)) {
1463                 return '';
1464         }
1465
1466         if ($created + 300 < time()) {
1467                 return bluesky_refresh_token($uid);
1468         }
1469         return $token;
1470 }
1471
1472 function bluesky_refresh_token(int $uid): string
1473 {
1474         $token = DI::pConfig()->get($uid, 'bluesky', 'refresh_token');
1475
1476         $data = bluesky_post($uid, '/xrpc/com.atproto.server.refreshSession', '', ['Authorization' => ['Bearer ' . $token]]);
1477         if (empty($data)) {
1478                 return '';
1479         }
1480
1481         Logger::debug('Refreshed token', ['return' => $data]);
1482         DI::pConfig()->set($uid, 'bluesky', 'access_token', $data->accessJwt);
1483         DI::pConfig()->set($uid, 'bluesky', 'refresh_token', $data->refreshJwt);
1484         DI::pConfig()->set($uid, 'bluesky', 'token_created', time());
1485         return $data->accessJwt;
1486 }
1487
1488 function bluesky_create_token(int $uid, string $password): string
1489 {
1490         $did = DI::pConfig()->get($uid, 'bluesky', 'did');
1491
1492         $data = bluesky_post($uid, '/xrpc/com.atproto.server.createSession', json_encode(['identifier' => $did, 'password' => $password]), ['Content-type' => 'application/json']);
1493         if (empty($data)) {
1494                 return '';
1495         }
1496
1497         Logger::debug('Created token', ['return' => $data]);
1498         DI::pConfig()->set($uid, 'bluesky', 'access_token', $data->accessJwt);
1499         DI::pConfig()->set($uid, 'bluesky', 'refresh_token', $data->refreshJwt);
1500         DI::pConfig()->set($uid, 'bluesky', 'token_created', time());
1501         return $data->accessJwt;
1502 }
1503
1504 function bluesky_xrpc_post(int $uid, string $url, $parameters): ?stdClass
1505 {
1506         return bluesky_post($uid, '/xrpc/' . $url, json_encode($parameters),  ['Content-type' => 'application/json', 'Authorization' => ['Bearer ' . bluesky_get_token($uid)]]);
1507 }
1508
1509 function bluesky_post(int $uid, string $url, string $params, array $headers): ?stdClass
1510 {
1511         try {
1512                 $curlResult = DI::httpClient()->post(DI::pConfig()->get($uid, 'bluesky', 'host') . $url, $params, $headers);
1513         } catch (\Exception $e) {
1514                 Logger::notice('Exception on post', ['exception' => $e]);
1515                 return null;
1516         }
1517
1518         if (!$curlResult->isSuccess()) {
1519                 Logger::notice('API Error', ['error' => json_decode($curlResult->getBody()) ?: $curlResult->getBody()]);
1520                 return null;
1521         }
1522
1523         return json_decode($curlResult->getBody());
1524 }
1525
1526 function bluesky_xrpc_get(int $uid, string $url, array $parameters = []): ?stdClass
1527 {
1528         if (!empty($parameters)) {
1529                 $url .= '?' . http_build_query($parameters);
1530         }
1531
1532         return bluesky_get($uid, '/xrpc/' . $url, HttpClientAccept::JSON, [HttpClientOptions::HEADERS => ['Authorization' => ['Bearer ' . bluesky_get_token($uid)]]]);
1533 }
1534
1535 function bluesky_get(int $uid, string $url, string $accept_content = HttpClientAccept::DEFAULT, array $opts = []): ?stdClass
1536 {
1537         try {
1538                 $curlResult = DI::httpClient()->get(DI::pConfig()->get($uid, 'bluesky', 'host') . $url, $accept_content, $opts);
1539         } catch (\Exception $e) {
1540                 Logger::notice('Exception on get', ['exception' => $e]);
1541                 return null;
1542         }
1543
1544         if (!$curlResult->isSuccess()) {
1545                 Logger::notice('API Error', ['error' => json_decode($curlResult->getBody()) ?: $curlResult->getBody()]);
1546                 return null;
1547         }
1548
1549         return json_decode($curlResult->getBody());
1550 }