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\System;
  36 use Friendica\Core\Worker;
  37 use Friendica\Database\DBA;
  38 use Friendica\DI;
  39 use Friendica\Model\Contact;
  40 use Friendica\Model\Item;
  41 use Friendica\Model\ItemURI;
  42 use Friendica\Model\Photo;
  43 use Friendica\Model\Post;
  44 use Friendica\Network\HTTPClient\Client\HttpClientAccept;
  45 use Friendica\Network\HTTPClient\Client\HttpClientOptions;
  46 use Friendica\Protocol\Activity;
  47 use Friendica\Protocol\Relay;
  48 use Friendica\Util\DateTimeFormat;
  49 use Friendica\Util\Strings;
  50
  51 const BLUESKY_DEFAULT_POLL_INTERVAL = 10; // given in minutes
  52 const BLUESKY_HOST = 'https://bsky.app'; // Hard wired until Bluesky will run on multiple systems
  53
  54 function bluesky_install()
  55 {
  56         Hook::register('load_config',             __FILE__, 'bluesky_load_config');
  57         Hook::register('hook_fork',               __FILE__, 'bluesky_hook_fork');
  58         Hook::register('post_local',              __FILE__, 'bluesky_post_local');
  59         Hook::register('notifier_normal',         __FILE__, 'bluesky_send');
  60         Hook::register('jot_networks',            __FILE__, 'bluesky_jot_nets');
  61         Hook::register('connector_settings',      __FILE__, 'bluesky_settings');
  62         Hook::register('connector_settings_post', __FILE__, 'bluesky_settings_post');
  63         Hook::register('cron',                    __FILE__, 'bluesky_cron');
  64         Hook::register('support_follow',          __FILE__, 'bluesky_support_follow');
  65         Hook::register('support_probe',           __FILE__, 'bluesky_support_probe');
  66         Hook::register('follow',                  __FILE__, 'bluesky_follow');
  67         Hook::register('unfollow',                __FILE__, 'bluesky_unfollow');
  68         Hook::register('block',                   __FILE__, 'bluesky_block');
  69         Hook::register('unblock',                 __FILE__, 'bluesky_unblock');
  70         Hook::register('check_item_notification', __FILE__, 'bluesky_check_item_notification');
  71         Hook::register('probe_detect',            __FILE__, 'bluesky_probe_detect');
  72         Hook::register('item_by_link',            __FILE__, 'bluesky_item_by_link');
  73 }
  74
  75 function bluesky_load_config(ConfigFileManager $loader)
  76 {
  77         DI::app()->getConfigCache()->load($loader->loadAddonConfig('bluesky'), \Friendica\Core\Config\ValueObject\Cache::SOURCE_STATIC);
  78 }
  79
  80 function bluesky_check_item_notification(array &$notification_data)
  81 {
  82         $did = DI::pConfig()->get($notification_data['uid'], 'bluesky', 'did');
  83
  84         if (!empty($did)) {
  85                 $notification_data['profiles'][] = $did;
  86         }
  87 }
  88
  89 function bluesky_probe_detect(array &$hookData)
  90 {
  91         // Don't overwrite an existing result
  92         if (isset($hookData['result'])) {
  93                 return;
  94         }
  95
  96         // Avoid a lookup for the wrong network
  97         if (!in_array($hookData['network'], ['', Protocol::BLUESKY])) {
  98                 return;
  99         }
 100
 101         $pconfig = DBA::selectFirst('pconfig', ['uid'], ["`cat` = ? AND `k` = ? AND `v` != ?", 'bluesky', 'access_token', '']);
 102         if (empty($pconfig['uid'])) {
 103                 return;
 104         }
 105
 106         if (parse_url($hookData['uri'], PHP_URL_SCHEME) == 'did') {
 107                 $did = $hookData['uri'];
 108         } elseif (preg_match('#^' . BLUESKY_HOST . '/profile/(.+)#', $hookData['uri'], $matches)) {
 109                 $did = bluesky_get_did($pconfig['uid'], $matches[1]);
 110                 if (empty($did)) {
 111                         return;
 112                 }
 113         } else {
 114                 return;
 115         }
 116
 117         $token = bluesky_get_token($pconfig['uid']);
 118         if (empty($token)) {
 119                 return;
 120         }
 121
 122         $data = bluesky_xrpc_get($pconfig['uid'], 'app.bsky.actor.getProfile', ['actor' => $did]);
 123         if (empty($data)) {
 124                 return;
 125         }
 126
 127         $hookData['result'] = bluesky_get_contact_fields($data, 0, false);
 128
 129         // Preparing probe data. This differs slightly from the contact array
 130         $hookData['result']['about']    = HTML::toBBCode($data->description ?? '');
 131         $hookData['result']['photo']    = $data->avatar ?? '';
 132         $hookData['result']['header']   = $data->banner ?? '';
 133         $hookData['result']['batch']    = '';
 134         $hookData['result']['notify']   = '';
 135         $hookData['result']['poll']     = '';
 136         $hookData['result']['poco']     = '';
 137         $hookData['result']['pubkey']   = '';
 138         $hookData['result']['priority'] = 0;
 139         $hookData['result']['guid']     = '';
 140 }
 141
 142 function bluesky_item_by_link(array &$hookData)
 143 {
 144         // Don't overwrite an existing result
 145         if (isset($hookData['item_id'])) {
 146                 return;
 147         }
 148
 149         $token = bluesky_get_token($hookData['uid']);
 150         if (empty($token)) {
 151                 return;
 152         }
 153
 154         if (!preg_match('#^' . BLUESKY_HOST . '/profile/(.+)/post/(.+)#', $hookData['uri'], $matches)) {
 155                 return;
 156         }
 157
 158         $did = bluesky_get_did($hookData['uid'], $matches[1]);
 159         if (empty($did)) {
 160                 return;
 161         }
 162
 163         Logger::debug('Found bluesky post', ['url' => $hookData['uri'], 'handle' => $matches[1], 'did' => $did, 'cid' => $matches[2]]);
 164
 165         $uri = 'at://' . $did . '/app.bsky.feed.post/' . $matches[2];
 166
 167         $uri = bluesky_fetch_missing_post($uri, $hookData['uid'], 0, 0);
 168         Logger::debug('Got post', ['profile' => $matches[1], 'cid' => $matches[2], 'result' => $uri]);
 169         if (!empty($uri)) {
 170                 $item = Post::selectFirst(['id'], ['uri' => $uri, 'uid' => $hookData['uid']]);
 171                 if (!empty($item['id'])) {
 172                         $hookData['item_id'] = $item['id'];
 173                 }
 174         }
 175 }
 176
 177 function bluesky_support_follow(array &$data)
 178 {
 179         if ($data['protocol'] == Protocol::BLUESKY) {
 180                 $data['result'] = true;
 181         }
 182 }
 183
 184 function bluesky_support_probe(array &$data)
 185 {
 186         if ($data['protocol'] == Protocol::BLUESKY) {
 187                 $data['result'] = true;
 188         }
 189 }
 190
 191 function bluesky_follow(array &$hook_data)
 192 {
 193         $token = bluesky_get_token($hook_data['uid']);
 194         if (empty($token)) {
 195                 return;
 196         }
 197
 198         Logger::debug('Check if contact is bluesky', ['data' => $hook_data]);
 199         $contact = DBA::selectFirst('contact', [], ['network' => Protocol::BLUESKY, 'url' => $hook_data['url'], 'uid' => [0, $hook_data['uid']]]);
 200         if (empty($contact)) {
 201                 return;
 202         }
 203
 204         $record = [
 205                 'subject'   => $contact['url'],
 206                 'createdAt' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 207                 '$type'     => 'app.bsky.graph.follow'
 208         ];
 209
 210         $post = [
 211                 'collection' => 'app.bsky.graph.follow',
 212                 'repo'       => DI::pConfig()->get($hook_data['uid'], 'bluesky', 'did'),
 213                 'record'     => $record
 214         ];
 215
 216         $activity = bluesky_xrpc_post($hook_data['uid'], 'com.atproto.repo.createRecord', $post);
 217         if (!empty($activity->uri)) {
 218                 $hook_data['contact'] = $contact;
 219                 Logger::debug('Successfully start following', ['url' => $contact['url'], 'uri' => $activity->uri]);
 220         }
 221 }
 222
 223 function bluesky_unfollow(array &$hook_data)
 224 {
 225         $token = bluesky_get_token($hook_data['uid']);
 226         if (empty($token)) {
 227                 return;
 228         }
 229
 230         if ($hook_data['contact']['network'] != Protocol::BLUESKY) {
 231                 return;
 232         }
 233
 234         $data = bluesky_xrpc_get($hook_data['uid'], 'app.bsky.actor.getProfile', ['actor' => $hook_data['contact']['url']]);
 235         if (empty($data->viewer) || empty($data->viewer->following)) {
 236                 return;
 237         }
 238
 239         bluesky_delete_post($data->viewer->following, $hook_data['uid']);
 240
 241         $hook_data['result'] = true;
 242 }
 243
 244 function bluesky_block(array &$hook_data)
 245 {
 246         $token = bluesky_get_token($hook_data['uid']);
 247         if (empty($token)) {
 248                 return;
 249         }
 250
 251         Logger::debug('Check if contact is bluesky', ['data' => $hook_data]);
 252         $contact = DBA::selectFirst('contact', [], ['network' => Protocol::BLUESKY, 'url' => $hook_data['url'], 'uid' => [0, $hook_data['uid']]]);
 253         if (empty($contact)) {
 254                 return;
 255         }
 256
 257         $record = [
 258                 'subject'   => $contact['url'],
 259                 'createdAt' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 260                 '$type'     => 'app.bsky.graph.block'
 261         ];
 262
 263         $post = [
 264                 'collection' => 'app.bsky.graph.block',
 265                 'repo'       => DI::pConfig()->get($hook_data['uid'], 'bluesky', 'did'),
 266                 'record'     => $record
 267         ];
 268
 269         $activity = bluesky_xrpc_post($hook_data['uid'], 'com.atproto.repo.createRecord', $post);
 270         if (!empty($activity->uri)) {
 271                 $cdata = Contact::getPublicAndUserContactID($hook_data['contact']['id'], $hook_data['uid']);
 272                 if (!empty($cdata['user'])) {
 273                         Contact::remove($cdata['user']);
 274                 }
 275                 Logger::debug('Successfully blocked contact', ['url' => $hook_data['contact']['url'], 'uri' => $activity->uri]);
 276         }
 277 }
 278
 279 function bluesky_unblock(array &$hook_data)
 280 {
 281         $token = bluesky_get_token($hook_data['uid']);
 282         if (empty($token)) {
 283                 return;
 284         }
 285
 286         if ($hook_data['contact']['network'] != Protocol::BLUESKY) {
 287                 return;
 288         }
 289
 290         $data = bluesky_xrpc_get($hook_data['uid'], 'app.bsky.actor.getProfile', ['actor' => $hook_data['contact']['url']]);
 291         if (empty($data->viewer) || empty($data->viewer->blocking)) {
 292                 return;
 293         }
 294
 295         bluesky_delete_post($data->viewer->blocking, $hook_data['uid']);
 296
 297         $hook_data['result'] = true;
 298 }
 299
 300 function bluesky_settings(array &$data)
 301 {
 302         if (!DI::userSession()->getLocalUserId()) {
 303                 return;
 304         }
 305
 306         $enabled      = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post') ?? false;
 307         $def_enabled  = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post_by_default') ?? false;
 308         $host         = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'host') ?: 'https://bsky.social';
 309         $handle       = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'handle');
 310         $did          = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'did');
 311         $token        = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'access_token');
 312         $import       = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'import') ?? false;
 313         $import_feeds = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'import_feeds') ?? false;
 314
 315         $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.');
 316
 317         $t    = Renderer::getMarkupTemplate('connector_settings.tpl', 'addon/bluesky/');
 318         $html = Renderer::replaceMacros($t, [
 319                 '$enable'       => ['bluesky', DI::l10n()->t('Enable Bluesky Post Addon'), $enabled],
 320                 '$bydefault'    => ['bluesky_bydefault', DI::l10n()->t('Post to Bluesky by default'), $def_enabled],
 321                 '$import'       => ['bluesky_import', DI::l10n()->t('Import the remote timeline'), $import],
 322                 '$import_feeds' => ['bluesky_import_feeds', DI::l10n()->t('Import the pinned feeds'), $import_feeds, DI::l10n()->t('When activated, Posts will be imported from all the feeds that you pinned in Bluesky.')],
 323                 '$host'         => ['bluesky_host', DI::l10n()->t('Bluesky host'), $host, '', '', 'readonly'],
 324                 '$handle'       => ['bluesky_handle', DI::l10n()->t('Bluesky handle'), $handle],
 325                 '$did'          => ['bluesky_did', DI::l10n()->t('Bluesky DID'), $did, DI::l10n()->t('This is the unique identifier. It will be fetched automatically, when the handle is entered.'), '', 'readonly'],
 326                 '$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.")],
 327                 '$status'       => $status
 328         ]);
 329
 330         $data = [
 331                 'connector' => 'bluesky',
 332                 'title'     => DI::l10n()->t('Bluesky Import/Export'),
 333                 'image'     => 'images/bluesky.jpg',
 334                 'enabled'   => $enabled,
 335                 'html'      => $html,
 336         ];
 337 }
 338
 339 function bluesky_settings_post(array &$b)
 340 {
 341         if (empty($_POST['bluesky-submit'])) {
 342                 return;
 343         }
 344
 345         $old_host   = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'host');
 346         $old_handle = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'handle');
 347         $old_did    = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'did');
 348
 349         $host   = $_POST['bluesky_host'];
 350         $handle = $_POST['bluesky_handle'];
 351
 352         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'post',            intval($_POST['bluesky']));
 353         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'post_by_default', intval($_POST['bluesky_bydefault']));
 354         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'host',            $host);
 355         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'handle',          $handle);
 356         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'import',          intval($_POST['bluesky_import']));
 357         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'import_feeds',    intval($_POST['bluesky_import_feeds']));
 358
 359         if (!empty($host) && !empty($handle)) {
 360                 if (empty($old_did) || $old_host != $host || $old_handle != $handle) {
 361                         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'did', bluesky_get_did(DI::userSession()->getLocalUserId(), DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'handle')));
 362                 }
 363         } else {
 364                 DI::pConfig()->delete(DI::userSession()->getLocalUserId(), 'bluesky', 'did');
 365         }
 366
 367         if (!empty($_POST['bluesky_password'])) {
 368                 bluesky_create_token(DI::userSession()->getLocalUserId(), $_POST['bluesky_password']);
 369         }
 370 }
 371
 372 function bluesky_jot_nets(array &$jotnets_fields)
 373 {
 374         if (!DI::userSession()->getLocalUserId()) {
 375                 return;
 376         }
 377
 378         if (DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post')) {
 379                 $jotnets_fields[] = [
 380                         'type'  => 'checkbox',
 381                         'field' => [
 382                                 'bluesky_enable',
 383                                 DI::l10n()->t('Post to Bluesky'),
 384                                 DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post_by_default')
 385                         ]
 386                 ];
 387         }
 388 }
 389
 390 function bluesky_cron()
 391 {
 392         $last = DI::keyValue()->get('bluesky_last_poll');
 393
 394         $poll_interval = intval(DI::config()->get('bluesky', 'poll_interval'));
 395         if (!$poll_interval) {
 396                 $poll_interval = BLUESKY_DEFAULT_POLL_INTERVAL;
 397         }
 398
 399         if ($last) {
 400                 $next = $last + ($poll_interval * 60);
 401                 if ($next > time()) {
 402                         Logger::notice('poll interval not reached');
 403                         return;
 404                 }
 405         }
 406         Logger::notice('cron_start');
 407
 408         $abandon_days = intval(DI::config()->get('system', 'account_abandon_days'));
 409         if ($abandon_days < 1) {
 410                 $abandon_days = 0;
 411         }
 412
 413         $abandon_limit = date(DateTimeFormat::MYSQL, time() - $abandon_days * 86400);
 414
 415         $pconfigs = DBA::selectToArray('pconfig', [], ['cat' => 'bluesky', 'k' => 'import', 'v' => true]);
 416         foreach ($pconfigs as $pconfig) {
 417                 if ($abandon_days != 0) {
 418                         if (!DBA::exists('user', ["`uid` = ? AND `login_date` >= ?", $pconfig['uid'], $abandon_limit])) {
 419                                 Logger::notice('abandoned account: timeline from user will not be imported', ['user' => $pconfig['uid']]);
 420                                 continue;
 421                         }
 422                 }
 423
 424                 // Refresh the token now, so that it doesn't need to be refreshed in parallel by the following workers
 425                 bluesky_get_token($pconfig['uid']);
 426
 427                 Worker::add(['priority' => Worker::PRIORITY_MEDIUM, 'force_priority' => true], 'addon/bluesky/bluesky_timeline.php', $pconfig['uid']);
 428                 Worker::add(['priority' => Worker::PRIORITY_MEDIUM, 'force_priority' => true], 'addon/bluesky/bluesky_notifications.php', $pconfig['uid']);
 429
 430                 if (DI::pConfig()->get($pconfig['uid'], 'bluesky', 'import_feeds')) {
 431                         $feeds = bluesky_get_feeds($pconfig['uid']);
 432                         foreach ($feeds as $feed) {
 433                                 Worker::add(['priority' => Worker::PRIORITY_MEDIUM, 'force_priority' => true], 'addon/bluesky/bluesky_feed.php', $pconfig['uid'], $feed);
 434                         }
 435                 }
 436         }
 437
 438         $last_clean = DI::keyValue()->get('bluesky_last_clean');
 439         if (empty($last_clean) || ($last_clean + 86400 < time())) {
 440                 Logger::notice('Start contact cleanup');
 441                 $contacts = DBA::select('account-user-view', ['id', 'pid'], ["`network` = ? AND `uid` != ? AND `rel` = ?", Protocol::BLUESKY, 0, Contact::NOTHING]);
 442                 while ($contact = DBA::fetch($contacts)) {
 443                         Worker::add(Worker::PRIORITY_LOW, 'MergeContact', $contact['pid'], $contact['id'], 0);
 444                 }
 445                 DBA::close($contacts);
 446                 DI::keyValue()->set('bluesky_last_clean', time());
 447                 Logger::notice('Contact cleanup done');
 448         }
 449
 450         Logger::notice('cron_end');
 451
 452         DI::keyValue()->set('bluesky_last_poll', time());
 453 }
 454
 455 function bluesky_hook_fork(array &$b)
 456 {
 457         if ($b['name'] != 'notifier_normal') {
 458                 return;
 459         }
 460
 461         $post = $b['data'];
 462
 463         if (($post['created'] !== $post['edited']) && !$post['deleted']) {
 464                 DI::logger()->info('Editing is not supported by the addon');
 465                 $b['execute'] = false;
 466                 return;
 467         }
 468
 469         if (DI::pConfig()->get($post['uid'], 'bluesky', 'import')) {
 470                 // Don't post if it isn't a reply to a bluesky post
 471                 if (($post['parent'] != $post['id']) && !Post::exists(['id' => $post['parent'], 'network' => Protocol::BLUESKY])) {
 472                         Logger::notice('No bluesky parent found', ['item' => $post['id']]);
 473                         $b['execute'] = false;
 474                         return;
 475                 }
 476         } elseif (!strstr($post['postopts'] ?? '', 'bluesky') || ($post['parent'] != $post['id']) || $post['private']) {
 477                 DI::logger()->info('Activities are never exported when we don\'t import the bluesky timeline', ['uid' => $post['uid']]);
 478                 $b['execute'] = false;
 479                 return;
 480         }
 481 }
 482
 483 function bluesky_post_local(array &$b)
 484 {
 485         if ($b['edit']) {
 486                 return;
 487         }
 488
 489         if (!DI::userSession()->getLocalUserId() || (DI::userSession()->getLocalUserId() != $b['uid'])) {
 490                 return;
 491         }
 492
 493         if ($b['private'] || $b['parent']) {
 494                 return;
 495         }
 496
 497         $bluesky_post   = intval(DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post'));
 498         $bluesky_enable = (($bluesky_post && !empty($_REQUEST['bluesky_enable'])) ? intval($_REQUEST['bluesky_enable']) : 0);
 499
 500         // if API is used, default to the chosen settings
 501         if ($b['api_source'] && intval(DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post_by_default'))) {
 502                 $bluesky_enable = 1;
 503         }
 504
 505         if (!$bluesky_enable) {
 506                 return;
 507         }
 508
 509         if (strlen($b['postopts'])) {
 510                 $b['postopts'] .= ',';
 511         }
 512
 513         $b['postopts'] .= 'bluesky';
 514 }
 515
 516 function bluesky_send(array &$b)
 517 {
 518         if (($b['created'] !== $b['edited']) && !$b['deleted']) {
 519                 return;
 520         }
 521
 522         if ($b['gravity'] != Item::GRAVITY_PARENT) {
 523                 Logger::debug('Got comment', ['item' => $b]);
 524
 525                 if ($b['deleted']) {
 526                         $uri = bluesky_get_uri_class($b['uri']);
 527                         if (empty($uri)) {
 528                                 Logger::debug('Not a bluesky post', ['uri' => $b['uri']]);
 529                                 return;
 530                         }
 531                         bluesky_delete_post($b['uri'], $b['uid']);
 532                         return;
 533                 }
 534
 535                 $root   = bluesky_get_uri_class($b['parent-uri']);
 536                 $parent = bluesky_get_uri_class($b['thr-parent']);
 537
 538                 if (empty($root) || empty($parent)) {
 539                         Logger::debug('No bluesky post', ['parent' => $b['parent'], 'thr-parent' => $b['thr-parent']]);
 540                         return;
 541                 }
 542
 543                 if ($b['gravity'] == Item::GRAVITY_COMMENT) {
 544                         Logger::debug('Posting comment', ['root' => $root, 'parent' => $parent]);
 545                         bluesky_create_post($b, $root, $parent);
 546                         return;
 547                 } elseif (in_array($b['verb'], [Activity::LIKE, Activity::ANNOUNCE])) {
 548                         bluesky_create_activity($b, $parent);
 549                 }
 550                 return;
 551         } elseif ($b['private'] || !strstr($b['postopts'], 'bluesky')) {
 552                 return;
 553         }
 554
 555         bluesky_create_post($b);
 556 }
 557
 558 function bluesky_create_activity(array $item, stdClass $parent = null)
 559 {
 560         $uid = $item['uid'];
 561         $token = bluesky_get_token($uid);
 562         if (empty($token)) {
 563                 return;
 564         }
 565
 566         $did  = DI::pConfig()->get($uid, 'bluesky', 'did');
 567
 568         if ($item['verb'] == Activity::LIKE) {
 569                 $record = [
 570                         'subject'   => $parent,
 571                         'createdAt' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 572                         '$type'     => 'app.bsky.feed.like'
 573                 ];
 574
 575                 $post = [
 576                         'collection' => 'app.bsky.feed.like',
 577                         'repo'       => $did,
 578                         'record'     => $record
 579                 ];
 580         } elseif ($item['verb'] == Activity::ANNOUNCE) {
 581                 $record = [
 582                         'subject'   => $parent,
 583                         'createdAt' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 584                         '$type'     => 'app.bsky.feed.repost'
 585                 ];
 586
 587                 $post = [
 588                         'collection' => 'app.bsky.feed.repost',
 589                         'repo'       => $did,
 590                         'record'     => $record
 591                 ];
 592         }
 593
 594         $activity = bluesky_xrpc_post($uid, 'com.atproto.repo.createRecord', $post);
 595         if (empty($activity)) {
 596                 return;
 597         }
 598         Logger::debug('Activity done', ['return' => $activity]);
 599         $uri = bluesky_get_uri($activity);
 600         Item::update(['extid' => $uri], ['id' => $item['id']]);
 601         Logger::debug('Set extid', ['id' => $item['id'], 'extid' => $activity]);
 602 }
 603
 604 function bluesky_create_post(array $item, stdClass $root = null, stdClass $parent = null)
 605 {
 606         $uid = $item['uid'];
 607         $token = bluesky_get_token($uid);
 608         if (empty($token)) {
 609                 return;
 610         }
 611
 612         $did  = DI::pConfig()->get($uid, 'bluesky', 'did');
 613         $urls = bluesky_get_urls(Post\Media::removeFromBody($item['body']));
 614         $item['body'] = $urls['body'];
 615
 616         $msg = Plaintext::getPost($item, 300, false, BBCode::BLUESKY);
 617         foreach ($msg['parts'] as $key => $part) {
 618
 619                 $facets = bluesky_get_facets($part, $urls['urls']);
 620
 621                 $record = [
 622                         'text'      => $facets['body'],
 623                         'createdAt' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 624                         '$type'     => 'app.bsky.feed.post'
 625                 ];
 626
 627                 if (!empty($facets['facets'])) {
 628                         $record['facets'] = $facets['facets'];
 629                 }
 630
 631                 if (!empty($root)) {
 632                         $record['reply'] = ['root' => $root, 'parent' => $parent];
 633                 }
 634
 635                 if ($key == count($msg['parts']) - 1) {
 636                         $record = bluesky_add_embed($uid, $msg, $record);
 637                 }
 638
 639                 $post = [
 640                         'collection' => 'app.bsky.feed.post',
 641                         'repo'       => $did,
 642                         'record'     => $record
 643                 ];
 644
 645                 $parent = bluesky_xrpc_post($uid, 'com.atproto.repo.createRecord', $post);
 646                 if (empty($parent)) {
 647                         return;
 648                 }
 649                 Logger::debug('Posting done', ['return' => $parent]);
 650                 if (empty($root)) {
 651                         $root = $parent;
 652                 }
 653                 if (($key == 0) && ($item['gravity'] != Item::GRAVITY_PARENT)) {
 654                         $uri = bluesky_get_uri($parent);
 655                         Item::update(['extid' => $uri], ['id' => $item['id']]);
 656                         Logger::debug('Set extid', ['id' => $item['id'], 'extid' => $uri]);
 657                 }
 658         }
 659 }
 660
 661 function bluesky_get_urls(string $body): array
 662 {
 663         // Remove all hashtag and mention links
 664         $body = preg_replace("/([#@!])\[url\=(.*?)\](.*?)\[\/url\]/ism", '$1$3', $body);
 665
 666         $urls = [];
 667
 668         // Search for pure links
 669         if (preg_match_all("/\[url\](https?:.*?)\[\/url\]/ism", $body, $matches, PREG_SET_ORDER)) {
 670                 foreach ($matches as $match) {
 671                         $text = Strings::getStyledURL($match[1]);
 672                         $hash = bluesky_get_hash_for_url($match[0], mb_strlen($text));
 673                         $urls[] = ['url' => $match[1], 'text' => $text, 'hash' => $hash];
 674                         $body = str_replace($match[0], $hash, $body);
 675                 }
 676         }
 677
 678         // Search for links with descriptions
 679         if (preg_match_all("/\[url\=(https?:.*?)\](.*?)\[\/url\]/ism", $body, $matches, PREG_SET_ORDER)) {
 680                 foreach ($matches as $match) {
 681                         if ($match[1] == $match[2]) {
 682                                 $text = Strings::getStyledURL($match[1]);
 683                         } else {
 684                                 $text = $match[2];
 685                         }
 686                         if (mb_strlen($text) < 100) {
 687                                 $hash = bluesky_get_hash_for_url($match[0], mb_strlen($text));
 688                                 $urls[] = ['url' => $match[1], 'text' => $text, 'hash' => $hash];
 689                                 $body = str_replace($match[0], $hash, $body);
 690                         } else {
 691                                 $text = Strings::getStyledURL($match[1]);
 692                                 $hash = bluesky_get_hash_for_url($match[0], mb_strlen($text));
 693                                 $urls[] = ['url' => $match[1], 'text' => $text, 'hash' => $hash];
 694                                 $body = str_replace($match[0], $text . ' ' . $hash, $body);
 695                         }
 696                 }
 697         }
 698
 699         return ['body' => $body, 'urls' => $urls];
 700 }
 701
 702 function bluesky_get_hash_for_url(string $text, int $linklength): string
 703 {
 704         if ($linklength <= 10) {
 705                 return '|' . hash('crc32', $text) . '|';
 706         }
 707         return substr('|' . hash('crc32', $text) . base64_encode($text), 0, $linklength - 2) . '|';
 708 }
 709
 710 function bluesky_get_facets(string $body, array $urls): array
 711 {
 712         $facets = [];
 713
 714         foreach ($urls as $url) {
 715                 $pos = strpos($body, $url['hash']);
 716                 if ($pos === false) {
 717                         continue;
 718                 }
 719                 if ($pos > 0) {
 720                         $prefix = substr($body, 0, $pos);
 721                 } else {
 722                         $prefix = '';
 723                 }
 724
 725                 $body = $prefix . $url['text'] . substr($body, $pos + strlen($url['hash']));
 726
 727                 $facet = new stdClass;
 728                 $facet->index = new stdClass;
 729                 $facet->index->byteEnd   = $pos + strlen($url['text']);
 730                 $facet->index->byteStart = $pos;
 731
 732                 $feature = new stdClass;
 733                 $feature->uri = $url['url'];
 734                 $type = '$type';
 735                 $feature->$type = 'app.bsky.richtext.facet#link';
 736
 737                 $facet->features = [$feature];
 738                 $facets[] = $facet;
 739         }
 740
 741         return ['facets' => $facets, 'body' => $body];
 742 }
 743
 744 function bluesky_add_embed(int $uid, array $msg, array $record): array
 745 {
 746         if (($msg['type'] != 'link') && !empty($msg['images'])) {
 747                 $images = [];
 748                 foreach ($msg['images'] as $image) {
 749                         $photo = Photo::selectFirst(['resource-id'], ['id' => $image['id']]);
 750                         $photo = Photo::selectFirst([], ["`resource-id` = ? AND `scale` > ?", $photo['resource-id'], 0], ['order' => ['scale']]);
 751                         $blob = bluesky_upload_blob($uid, $photo);
 752                         if (!empty($blob) && count($images) < 4) {
 753                                 $images[] = ['alt' => $image['description'] ?? '', 'image' => $blob];
 754                         }
 755                 }
 756                 if (!empty($images)) {
 757                         $record['embed'] = ['$type' => 'app.bsky.embed.images', 'images' => $images];
 758                 }
 759         } elseif ($msg['type'] == 'link') {
 760                 $record['embed'] = [
 761                         '$type'    => 'app.bsky.embed.external',
 762                         'external' => [
 763                                 'uri'         => $msg['url'],
 764                                 'title'       => $msg['title'] ?? '',
 765                                 'description' => $msg['description'] ?? '',
 766                         ]
 767                 ];
 768                 if (!empty($msg['image'])) {
 769                         $photo = Photo::createPhotoForExternalResource($msg['image']);
 770                         $blob = bluesky_upload_blob($uid, $photo);
 771                         if (!empty($blob)) {
 772                                 $record['embed']['external']['thumb'] = $blob;
 773                         }
 774                 }
 775         }
 776         return $record;
 777 }
 778
 779 function bluesky_upload_blob(int $uid, array $photo): ?stdClass
 780 {
 781         $content = Photo::getImageForPhoto($photo);
 782         $data = bluesky_post($uid, '/xrpc/com.atproto.repo.uploadBlob', $content, ['Content-type' => $photo['type'], 'Authorization' => ['Bearer ' . bluesky_get_token($uid)]]);
 783         if (empty($data)) {
 784                 return null;
 785         }
 786
 787         Logger::debug('Uploaded blob', ['return' => $data]);
 788         return $data->blob;
 789 }
 790
 791 function bluesky_delete_post(string $uri, int $uid)
 792 {
 793         $parts = bluesky_get_uri_parts($uri);
 794         if (empty($parts)) {
 795                 Logger::debug('No uri delected', ['uri' => $uri]);
 796                 return;
 797         }
 798         bluesky_xrpc_post($uid, 'com.atproto.repo.deleteRecord', $parts);
 799         Logger::debug('Deleted', ['parts' => $parts]);
 800 }
 801
 802 function bluesky_fetch_timeline(int $uid)
 803 {
 804         $data = bluesky_xrpc_get($uid, 'app.bsky.feed.getTimeline');
 805         if (empty($data)) {
 806                 return;
 807         }
 808
 809         if (empty($data->feed)) {
 810                 return;
 811         }
 812
 813         foreach (array_reverse($data->feed) as $entry) {
 814                 bluesky_process_post($entry->post, $uid, Item::PR_NONE, 0);
 815                 if (!empty($entry->reason)) {
 816                         bluesky_process_reason($entry->reason, bluesky_get_uri($entry->post), $uid);
 817                 }
 818         }
 819
 820         // @todo Support paging
 821         // [cursor] => 1684670516000::bafyreidq3ilwslmlx72jf5vrk367xcc63s6lrhzlyup2bi3zwcvso6w2vi
 822 }
 823
 824 function bluesky_process_reason(stdClass $reason, string $uri, int $uid)
 825 {
 826         $type = '$type';
 827         if ($reason->$type != 'app.bsky.feed.defs#reasonRepost') {
 828                 return;
 829         }
 830
 831         $contact = bluesky_get_contact($reason->by, $uid, $uid);
 832
 833         $item = [
 834                 'network'       => Protocol::BLUESKY,
 835                 'uid'           => $uid,
 836                 'wall'          => false,
 837                 'uri'           => $reason->by->did . '/app.bsky.feed.repost/' . $reason->indexedAt,
 838                 'private'       => Item::UNLISTED,
 839                 'verb'          => Activity::POST,
 840                 'contact-id'    => $contact['id'],
 841                 'author-name'   => $contact['name'],
 842                 'author-link'   => $contact['url'],
 843                 'author-avatar' => $contact['avatar'],
 844                 'verb'          => Activity::ANNOUNCE,
 845                 'body'          => Activity::ANNOUNCE,
 846                 'gravity'       => Item::GRAVITY_ACTIVITY,
 847                 'object-type'   => Activity\ObjectType::NOTE,
 848                 'thr-parent'    => $uri,
 849         ];
 850
 851         if (Post::exists(['uri' => $item['uri'], 'uid' => $uid])) {
 852                 return;
 853         }
 854
 855         $item['guid']         = Item::guidFromUri($item['uri'], $contact['alias']);
 856         $item['owner-name']   = $item['author-name'];
 857         $item['owner-link']   = $item['author-link'];
 858         $item['owner-avatar'] = $item['author-avatar'];
 859         if (Item::insert($item)) {
 860                 $cdata = Contact::getPublicAndUserContactID($contact['id'], $uid);
 861                 Item::update(['post-reason' => Item::PR_ANNOUNCEMENT, 'causer-id' => $cdata['public']], ['uri' => $uri, 'uid' => $uid]);
 862         }
 863 }
 864
 865 function bluesky_fetch_notifications(int $uid)
 866 {
 867         $data = bluesky_xrpc_get($uid, 'app.bsky.notification.listNotifications');
 868         if (empty($data->notifications)) {
 869                 return;
 870         }
 871         foreach ($data->notifications as $notification) {
 872                 $uri = bluesky_get_uri($notification);
 873                 if (Post::exists(['uri' => $uri, 'uid' => $uid]) || Post::exists(['extid' => $uri, 'uid' => $uid])) {
 874                         Logger::debug('Notification already processed', ['uid' => $uid, 'reason' => $notification->reason, 'uri' => $uri, 'indexedAt' => $notification->indexedAt]);
 875                         continue;
 876                 }
 877                 Logger::debug('Process notification', ['uid' => $uid, 'reason' => $notification->reason, 'uri' => $uri, 'indexedAt' => $notification->indexedAt]);
 878                 switch ($notification->reason) {
 879                         case 'like':
 880                                 $item = bluesky_get_header($notification, $uri, $uid, $uid);
 881                                 $item['gravity'] = Item::GRAVITY_ACTIVITY;
 882                                 $item['body'] = $item['verb'] = Activity::LIKE;
 883                                 $item['thr-parent'] = bluesky_get_uri($notification->record->subject);
 884                                 $item['thr-parent'] = bluesky_fetch_missing_post($item['thr-parent'], $uid, $item['contact-id'], 0);
 885                                 if (!empty($item['thr-parent'])) {
 886                                         $data = Item::insert($item);
 887                                         Logger::debug('Got like', ['uid' => $uid, 'result' => $data, 'uri' => $uri]);
 888                                 } else {
 889                                         Logger::info('Thread parent not found', ['uid' => $uid, 'parent' => $$item['thr-parent'], 'uri' => $uri]);
 890                                 }
 891                         break;
 892
 893                         case 'repost':
 894                                 $item = bluesky_get_header($notification, $uri, $uid, $uid);
 895                                 $item['gravity'] = Item::GRAVITY_ACTIVITY;
 896                                 $item['body'] = $item['verb'] = Activity::ANNOUNCE;
 897                                 $item['thr-parent'] = bluesky_get_uri($notification->record->subject);
 898                                 $item['thr-parent'] = bluesky_fetch_missing_post($item['thr-parent'], $uid, $item['contact-id'], 0);
 899                                 if (!empty($item['thr-parent'])) {
 900                                         $data = Item::insert($item);
 901                                         Logger::debug('Got repost', ['uid' => $uid, 'result' => $data, 'uri' => $uri]);
 902                                 } else {
 903                                         Logger::info('Thread parent not found', ['uid' => $uid, 'parent' => $$item['thr-parent'], 'uri' => $uri]);
 904                                 }
 905                         break;
 906
 907                         case 'follow':
 908                                 $contact = bluesky_get_contact($notification->author, $uid, $uid);
 909                                 Logger::debug('New follower', ['uid' => $uid, 'nick' => $contact['nick'], 'uri' => $uri]);
 910                                 break;
 911
 912                         case 'mention':
 913                                 $data = bluesky_process_post($notification, $uid, Item::PR_PUSHED, 0);
 914                                 Logger::debug('Got mention', ['uid' => $uid, 'result' => $data, 'uri' => $uri]);
 915                                 break;
 916
 917                         case 'reply':
 918                                 $data = bluesky_process_post($notification, $uid, Item::PR_PUSHED, 0);
 919                                 Logger::debug('Got reply', ['uid' => $uid, 'result' => $data, 'uri' => $uri]);
 920                                 break;
 921
 922                         case 'quote':
 923                                 $data = bluesky_process_post($notification, $uid, Item::PR_PUSHED, 0);
 924                                 Logger::debug('Got quote', ['uid' => $uid, 'result' => $data, 'uri' => $uri]);
 925                                 break;
 926
 927                         default:
 928                                 Logger::notice('Unhandled reason', ['reason' => $notification->reason, 'uri' => $uri]);
 929                                 break;
 930                 }
 931         }
 932 }
 933
 934 function bluesky_fetch_feed(int $uid, string $feed)
 935 {
 936         $data = bluesky_xrpc_get($uid, 'app.bsky.feed.getFeed', ['feed' => $feed]);
 937         if (empty($data)) {
 938                 return;
 939         }
 940
 941         if (empty($data->feed)) {
 942                 return;
 943         }
 944
 945         foreach (array_reverse($data->feed) as $entry) {
 946                 if (!Relay::isWantedLanguage($entry->post->record->text)) {
 947                         Logger::debug('Unwanted language detected', ['text' => $entry->post->record->text]);
 948                         continue;
 949                 }
 950                 bluesky_process_post($entry->post, $uid, Item::PR_TAG, 0);
 951                 if (!empty($entry->reason)) {
 952                         bluesky_process_reason($entry->reason, bluesky_get_uri($entry->post), $uid);
 953                 }
 954         }
 955 }
 956
 957 function bluesky_process_post(stdClass $post, int $uid, int $post_reason, $level): int
 958 {
 959         $uri = bluesky_get_uri($post);
 960
 961         if (Post::exists(['uri' => $uri, 'uid' => $uid]) || Post::exists(['extid' => $uri, 'uid' => $uid])) {
 962                 return 0;
 963         }
 964
 965         Logger::debug('Importing post', ['uid' => $uid, 'indexedAt' => $post->indexedAt, 'uri' => $post->uri, 'cid' => $post->cid, 'root' => $post->record->reply->root ?? '']);
 966
 967         $item = bluesky_get_header($post, $uri, $uid, $uid);
 968         $item = bluesky_get_content($item, $post->record, $uri, $uid, $level);
 969         if (empty($item)) {
 970                 return 0;
 971         }
 972
 973         if (!empty($post->embed)) {
 974                 $item = bluesky_add_media($post->embed, $item, $uid, $level);
 975         }
 976
 977         if (empty($item['post-reason'])) {
 978                 $item['post-reason'] = $post_reason;
 979         }
 980
 981         return item::insert($item);
 982 }
 983
 984 function bluesky_get_header(stdClass $post, string $uri, int $uid, int $fetch_uid): array
 985 {
 986         $parts = bluesky_get_uri_parts($uri);
 987         if (empty($post->author)) {
 988                 return [];
 989         }
 990         $contact = bluesky_get_contact($post->author, $uid, $fetch_uid);
 991         $item = [
 992                 'network'       => Protocol::BLUESKY,
 993                 'uid'           => $uid,
 994                 'wall'          => false,
 995                 'uri'           => $uri,
 996                 'guid'          => $post->cid,
 997                 'private'       => Item::UNLISTED,
 998                 'verb'          => Activity::POST,
 999                 'contact-id'    => $contact['id'],
1000                 'author-name'   => $contact['name'],
1001                 'author-link'   => $contact['url'],
1002                 'author-avatar' => $contact['avatar'],
1003                 'plink'         => $contact['alias'] . '/post/' . $parts->rkey,
1004         ];
1005
1006         $item['uri-id']       = ItemURI::getIdByURI($uri);
1007         $item['owner-name']   = $item['author-name'];
1008         $item['owner-link']   = $item['author-link'];
1009         $item['owner-avatar'] = $item['author-avatar'];
1010
1011         if (in_array($contact['rel'], [Contact::SHARING, Contact::FRIEND])) {
1012                 $item['post-reason'] = Item::PR_FOLLOWER;
1013         }
1014
1015         return $item;
1016 }
1017
1018 function bluesky_get_content(array $item, stdClass $record, string $uri, int $uid, int $level): array
1019 {
1020         if (empty($item)) {
1021                 return [];
1022         }
1023
1024         if (!empty($record->reply)) {
1025                 $item['parent-uri'] = bluesky_get_uri($record->reply->root);
1026                 if ($item['parent-uri'] != $uri) {
1027                         $item['parent-uri'] = bluesky_fetch_missing_post($item['parent-uri'], $uid, $item['contact-id'], $level);
1028                         if (empty($item['parent-uri'])) {
1029                                 return [];
1030                         }
1031                 }
1032
1033                 $item['thr-parent'] = bluesky_get_uri($record->reply->parent);
1034                 if (!in_array($item['thr-parent'], [$uri, $item['parent-uri']])) {
1035                         $item['thr-parent'] = bluesky_fetch_missing_post($item['thr-parent'], $uid, $item['contact-id'], $level, $item['parent-uri']);
1036                         if (empty($item['thr-parent'])) {
1037                                 return [];
1038                         }
1039                 }
1040         }
1041
1042         $item['body']    = bluesky_get_text($record);
1043         $item['created'] = DateTimeFormat::utc($record->createdAt, DateTimeFormat::MYSQL);
1044         return $item;
1045 }
1046
1047 function bluesky_get_text(stdClass $record): string
1048 {
1049         $text = $record->text;
1050
1051         if (empty($record->facets)) {
1052                 return $text;
1053         }
1054
1055         $facets = [];
1056         foreach ($record->facets as $facet) {
1057                 $facets[$facet->index->byteStart] = $facet;
1058         }
1059         krsort($facets);
1060
1061         foreach ($facets as $facet) {
1062                 $prefix   = substr($text, 0, $facet->index->byteStart);
1063                 $linktext = substr($text, $facet->index->byteStart, $facet->index->byteEnd - $facet->index->byteStart);
1064                 $suffix   = substr($text, $facet->index->byteEnd);
1065
1066                 $url  = '';
1067                 $type = '$type';
1068                 foreach ($facet->features as $feature) {
1069
1070                         switch ($feature->$type) {
1071                                 case 'app.bsky.richtext.facet#link':
1072                                         $url = $feature->uri;
1073                                         break;
1074
1075                                 case 'app.bsky.richtext.facet#mention':
1076                                         $contact = Contact::getByURL($feature->did, null, ['id']);
1077                                         if (!empty($contact['id'])) {
1078                                                 $url = DI::baseUrl() . '/contact/' . $contact['id'];
1079                                                 if (substr($linktext, 0, 1) == '@') {
1080                                                         $prefix .= '@';
1081                                                         $linktext = substr($linktext, 1);
1082                                                 }
1083                                         }
1084                                         break;
1085
1086                                 default:
1087                                         Logger::notice('Unhandled feature type', ['type' => $feature->$type, 'record' => $record]);
1088                                         break;
1089                         }
1090                 }
1091                 if (!empty($url)) {
1092                         $text = $prefix . '[url=' . $url . ']' . $linktext . '[/url]' . $suffix;
1093                 }
1094         }
1095         return $text;
1096 }
1097
1098 function bluesky_add_media(stdClass $embed, array $item, int $fetch_uid, int $level): array
1099 {
1100         $type = '$type';
1101         switch ($embed->$type) {
1102                 case 'app.bsky.embed.images#view':
1103                         foreach ($embed->images as $image) {
1104                                 $media = [
1105                                         'uri-id'      => $item['uri-id'],
1106                                         'type'        => Post\Media::IMAGE,
1107                                         'url'         => $image->fullsize,
1108                                         'preview'     => $image->thumb,
1109                                         'description' => $image->alt,
1110                                 ];
1111                                 Post\Media::insert($media);
1112                         }
1113                         break;
1114
1115                 case 'app.bsky.embed.external#view':
1116                         $media = [
1117                                 'uri-id' => $item['uri-id'],
1118                                 'type'        => Post\Media::HTML,
1119                                 'url'         => $embed->external->uri,
1120                                 'name'        => $embed->external->title,
1121                                 'description' => $embed->external->description,
1122                         ];
1123                         Post\Media::insert($media);
1124                         break;
1125
1126                 case 'app.bsky.embed.record#view':
1127                         $uri = bluesky_get_uri($embed->record);
1128                         $shared = Post::selectFirst(['uri-id'], ['uri' => $uri, 'uid' => $item['uid']]);
1129                         if (empty($shared)) {
1130                                 if (empty($embed->record->value)) {
1131                                         Logger::info('Record has got no value', ['record' => $embed->record]);
1132                                         break;
1133                                 }
1134                                 $shared = bluesky_get_header($embed->record, $uri, 0, $fetch_uid);
1135                                 $shared = bluesky_get_content($shared, $embed->record->value, $uri, $item['uid'], $level);
1136                                 if (!empty($shared)) {
1137                                         if (!empty($embed->record->embeds)) {
1138                                                 foreach ($embed->record->embeds as $single) {
1139                                                         $shared = bluesky_add_media($single, $shared, $fetch_uid, $level);
1140                                                 }
1141                                         }
1142                                         $id = Item::insert($shared);
1143                                         $shared = Post::selectFirst(['uri-id'], ['id' => $id]);
1144                                 }
1145                         }
1146                         if (!empty($shared)) {
1147                                 $item['quote-uri-id'] = $shared['uri-id'];
1148                         }
1149                         break;
1150
1151                 case 'app.bsky.embed.recordWithMedia#view':
1152                         $uri = bluesky_get_uri($embed->record->record);
1153                         $shared = Post::selectFirst(['uri-id'], ['uri' => $uri, 'uid' => $item['uid']]);
1154                         if (empty($shared)) {
1155                                 $shared = bluesky_get_header($embed->record->record, $uri, 0, $fetch_uid);
1156                                 $shared = bluesky_get_content($shared, $embed->record->record->value, $uri, $item['uid'], $level);
1157                                 if (!empty($shared)) {
1158                                         if (!empty($embed->record->record->embeds)) {
1159                                                 foreach ($embed->record->record->embeds as $single) {
1160                                                         $shared = bluesky_add_media($single, $shared, $fetch_uid, $level);
1161                                                 }
1162                                         }
1163
1164                                         $id = Item::insert($shared);
1165                                         $shared = Post::selectFirst(['uri-id'], ['id' => $id]);
1166                                 }
1167                         }
1168                         if (!empty($shared)) {
1169                                 $item['quote-uri-id'] = $shared['uri-id'];
1170                         }
1171
1172                         if (!empty($embed->media)) {
1173                                 bluesky_add_media($embed->media, $item, $fetch_uid, $level);
1174                         }
1175                         break;
1176
1177                 default:
1178                         Logger::notice('Unhandled embed type', ['type' => $embed->$type, 'embed' => $embed]);
1179                         break;
1180         }
1181         return $item;
1182 }
1183
1184 function bluesky_get_uri(stdClass $post): string
1185 {
1186         if (empty($post->cid)) {
1187                 Logger::info('Invalid URI', ['post' => $post, 'callstack' => System::callstack(10, 0, true)]);
1188                 return '';
1189         }
1190         return $post->uri . ':' . $post->cid;
1191 }
1192
1193 function bluesky_get_uri_class(string $uri): ?stdClass
1194 {
1195         if (empty($uri)) {
1196                 return null;
1197         }
1198
1199         $elements = explode(':', $uri);
1200         if (empty($elements) || ($elements[0] != 'at')) {
1201                 $post = Post::selectFirstPost(['extid'], ['uri' => $uri]);
1202                 return bluesky_get_uri_class($post['extid'] ?? '');
1203         }
1204
1205         $class = new stdClass;
1206
1207         $class->cid = array_pop($elements);
1208         $class->uri = implode(':', $elements);
1209
1210         if ((substr_count($class->uri, '/') == 2) && (substr_count($class->cid, '/') == 2)) {
1211                 $class->uri .= ':' . $class->cid;
1212                 $class->cid = '';
1213         }
1214
1215         return $class;
1216 }
1217
1218 function bluesky_get_uri_parts(string $uri): ?stdClass
1219 {
1220         $class = bluesky_get_uri_class($uri);
1221         if (empty($class)) {
1222                 return null;
1223         }
1224
1225         $parts = explode('/', substr($class->uri, 5));
1226
1227         $class = new stdClass;
1228
1229         $class->repo       = $parts[0];
1230         $class->collection = $parts[1];
1231         $class->rkey       = $parts[2];
1232
1233         return $class;
1234 }
1235
1236 function bluesky_fetch_missing_post(string $uri, int $uid, int $causer, int $level, string $fallback = ''): string
1237 {
1238         $fetched_uri = bluesky_fetch_post($uri, $uid);
1239         if (!empty($fetched_uri)) {
1240                 return $fetched_uri;
1241         }
1242
1243         if (++$level > 100) {
1244                 Logger::info('Recursion level too deep', ['level' => $level, 'uid' => $uid, 'uri' => $uri, 'fallback' => $fallback]);
1245                 // When the level is too deep we will fallback to the parent uri.
1246                 // Allthough the threading won't be correct, we at least had stored all posts and won't try again
1247                 return $fallback;
1248         }
1249
1250         $class = bluesky_get_uri_class($uri);
1251         $fetch_uri = $class->uri;
1252
1253         Logger::debug('Fetch missing post', ['level' => $level, 'uid' => $uid, 'uri' => $uri]);
1254         $data = bluesky_xrpc_get($uid, 'app.bsky.feed.getPostThread', ['uri' => $fetch_uri]);
1255         if (empty($data)) {
1256                 Logger::info('Thread was not fetched', ['level' => $level, 'uid' => $uid, 'uri' => $uri, 'fallback' => $fallback]);
1257                 return $fallback;
1258         }
1259
1260         Logger::debug('Reply count', ['replies' => $data->thread->post->replyCount, 'level' => $level, 'uid' => $uid, 'uri' => $uri]);
1261
1262         if ($causer != 0) {
1263                 $cdata = Contact::getPublicAndUserContactID($causer, $uid);
1264         } else {
1265                 $cdata = [];
1266         }
1267
1268         return bluesky_process_thread($data->thread, $uid, $cdata, $level);
1269 }
1270
1271 function bluesky_fetch_post(string $uri, int $uid): string
1272 {
1273         if (Post::exists(['uri' => $uri, 'uid' => [$uid, 0]])) {
1274                 Logger::debug('Post exists', ['uri' => $uri]);
1275                 return $uri;
1276         }
1277
1278         $reply = Post::selectFirst(['uri'], ['extid' => $uri, 'uid' => [$uid, 0]]);
1279         if (!empty($reply['uri'])) {
1280                 Logger::debug('Post with extid exists', ['uri' => $uri]);
1281                 return $reply['uri'];
1282         }
1283         return '';
1284 }
1285
1286 function bluesky_process_thread(stdClass $thread, int $uid, array $cdata, int $level): string
1287 {
1288         $uri = bluesky_get_uri($thread->post);
1289         $fetched_uri = bluesky_fetch_post($uri, $uid);
1290         if (empty($fetched_uri)) {
1291                 Logger::debug('Process missing post', ['uri' => $uri]);
1292                 $item = bluesky_get_header($thread->post, $uri, $uid, $uid);
1293                 $item = bluesky_get_content($item, $thread->post->record, $uri, $uid, $level);
1294                 if (!empty($item)) {
1295                         $item['post-reason'] = Item::PR_FETCHED;
1296
1297                         if (!empty($cdata['public'])) {
1298                                 $item['causer-id']   = $cdata['public'];
1299                         }
1300
1301                         if (!empty($thread->post->embed)) {
1302                                 $item = bluesky_add_media($thread->post->embed, $item, $uid, $level);
1303                         }
1304                         $id = Item::insert($item);
1305                         if (!$id) {
1306                                 Logger::info('Item has not not been stored', ['uri' => $uri]);
1307                                 return '';
1308                         }
1309                         Logger::debug('Stored item', ['id' => $id, 'uri' => $uri]);
1310                 } else {
1311                         Logger::info('Post has not not been fetched', ['uri' => $uri]);
1312                         return '';
1313                 }
1314         } else {
1315                 Logger::debug('Post exists', ['uri' => $uri]);
1316                 $uri = $fetched_uri;
1317         }
1318
1319         foreach ($thread->replies ?? [] as $reply) {
1320                 $reply_uri = bluesky_process_thread($reply, $uid, $cdata, $level);
1321                 Logger::debug('Reply has been processed', ['uri' => $uri, 'reply' => $reply_uri]);
1322         }
1323
1324         return $uri;
1325 }
1326
1327 function bluesky_get_contact(stdClass $author, int $uid, int $fetch_uid): array
1328 {
1329         $condition = ['network' => Protocol::BLUESKY, 'uid' => 0, 'url' => $author->did];
1330         $contact = Contact::selectFirst(['id', 'updated'], $condition);
1331
1332         $update = empty($contact) || $contact['updated'] < DateTimeFormat::utc('now -24 hours');
1333
1334         $public_fields = $fields = bluesky_get_contact_fields($author, $fetch_uid, $update);
1335
1336         $public_fields['uid'] = 0;
1337         $public_fields['rel'] = Contact::NOTHING;
1338
1339         if (empty($contact)) {
1340                 $cid = Contact::insert($public_fields);
1341         } else {
1342                 $cid = $contact['id'];
1343                 Contact::update($public_fields, ['id' => $cid], true);
1344         }
1345
1346         if ($uid != 0) {
1347                 $condition = ['network' => Protocol::BLUESKY, 'uid' => $uid, 'url' => $author->did];
1348
1349                 $contact = Contact::selectFirst(['id', 'rel', 'uid'], $condition);
1350                 if (!isset($fields['rel']) && isset($contact['rel'])) {
1351                         $fields['rel'] = $contact['rel'];
1352                 } elseif (!isset($fields['rel'])) {
1353                         $fields['rel'] = Contact::NOTHING;
1354                 }
1355         }
1356
1357         if (($uid != 0) && ($fields['rel'] != Contact::NOTHING)) {
1358                 if (empty($contact)) {
1359                         $cid = Contact::insert($fields);
1360                 } else {
1361                         $cid = $contact['id'];
1362                         Contact::update($fields, ['id' => $cid], true);
1363                 }
1364                 Logger::debug('Get user contact', ['id' => $cid, 'uid' => $uid, 'update' => $update]);
1365         } else {
1366                 Logger::debug('Get public contact', ['id' => $cid, 'uid' => $uid, 'update' => $update]);
1367         }
1368         if (!empty($author->avatar)) {
1369                 Contact::updateAvatar($cid, $author->avatar);
1370         }
1371
1372         return Contact::getById($cid);
1373 }
1374
1375 function bluesky_get_contact_fields(stdClass $author, int $uid, bool $update): array
1376 {
1377         $fields = [
1378                 'uid'      => $uid,
1379                 'network'  => Protocol::BLUESKY,
1380                 'priority' => 1,
1381                 'writable' => true,
1382                 'blocked'  => false,
1383                 'readonly' => false,
1384                 'pending'  => false,
1385                 'baseurl'  => BLUESKY_HOST,
1386                 'url'      => $author->did,
1387                 'nurl'     => $author->did,
1388                 'alias'    => BLUESKY_HOST . '/profile/' . $author->handle,
1389                 'name'     => $author->displayName ?? $author->handle,
1390                 'nick'     => $author->handle,
1391                 'addr'     => $author->handle,
1392         ];
1393
1394         if (!$update) {
1395                 Logger::debug('Got contact fields', ['uid' => $uid, 'url' => $fields['url']]);
1396                 return $fields;
1397         }
1398
1399         $data = bluesky_xrpc_get($uid, 'app.bsky.actor.getProfile', ['actor' => $author->did]);
1400         if (empty($data)) {
1401                 Logger::debug('Error fetching contact fields', ['uid' => $uid, 'url' => $fields['url']]);
1402                 return $fields;
1403         }
1404
1405         $fields['updated'] = DateTimeFormat::utcNow(DateTimeFormat::MYSQL);
1406
1407         if (!empty($data->description)) {
1408                 $fields['about'] = HTML::toBBCode($data->description);
1409         }
1410
1411         if (!empty($data->banner)) {
1412                 $fields['header'] = $data->banner;
1413         }
1414
1415         if (!empty($data->viewer)) {
1416                 if (!empty($data->viewer->following) && !empty($data->viewer->followedBy)) {
1417                         $fields['rel'] = Contact::FRIEND;
1418                 } elseif (!empty($data->viewer->following) && empty($data->viewer->followedBy)) {
1419                         $fields['rel'] = Contact::SHARING;
1420                 } elseif (empty($data->viewer->following) && !empty($data->viewer->followedBy)) {
1421                         $fields['rel'] = Contact::FOLLOWER;
1422                 } else {
1423                         $fields['rel'] = Contact::NOTHING;
1424                 }
1425         }
1426
1427         Logger::debug('Got updated contact fields', ['uid' => $uid, 'url' => $fields['url']]);
1428         return $fields;
1429 }
1430
1431 function bluesky_get_feeds(int $uid): array
1432 {
1433         $type = '$type';
1434         $preferences = bluesky_get_preferences($uid);
1435         foreach ($preferences->preferences as $preference) {
1436                 if ($preference->$type == 'app.bsky.actor.defs#savedFeedsPref') {
1437                         return $preference->pinned ?? [];
1438                 }
1439         }
1440         return [];
1441 }
1442
1443 function bluesky_get_preferences(int $uid): stdClass
1444 {
1445         $cachekey = 'bluesky:preferences:' . $uid;
1446         $data = DI::cache()->get($cachekey);
1447         if (!is_null($data)) {
1448                 return $data;
1449         }
1450
1451         $data = bluesky_xrpc_get($uid, 'app.bsky.actor.getPreferences');
1452
1453         DI::cache()->set($cachekey, $data, Duration::HOUR);
1454         return $data;
1455 }
1456
1457 function bluesky_get_did(int $uid, string $handle): string
1458 {
1459         $data = bluesky_get($uid, '/xrpc/com.atproto.identity.resolveHandle?handle=' . urlencode($handle));
1460         if (empty($data)) {
1461                 return '';
1462         }
1463         Logger::debug('Got DID', ['return' => $data]);
1464         return $data->did;
1465 }
1466
1467 function bluesky_get_token(int $uid): string
1468 {
1469         $token   = DI::pConfig()->get($uid, 'bluesky', 'access_token');
1470         $created = DI::pConfig()->get($uid, 'bluesky', 'token_created');
1471         if (empty($token)) {
1472                 return '';
1473         }
1474
1475         if ($created + 300 < time()) {
1476                 return bluesky_refresh_token($uid);
1477         }
1478         return $token;
1479 }
1480
1481 function bluesky_refresh_token(int $uid): string
1482 {
1483         $token = DI::pConfig()->get($uid, 'bluesky', 'refresh_token');
1484
1485         $data = bluesky_post($uid, '/xrpc/com.atproto.server.refreshSession', '', ['Authorization' => ['Bearer ' . $token]]);
1486         if (empty($data)) {
1487                 return '';
1488         }
1489
1490         Logger::debug('Refreshed token', ['return' => $data]);
1491         DI::pConfig()->set($uid, 'bluesky', 'access_token', $data->accessJwt);
1492         DI::pConfig()->set($uid, 'bluesky', 'refresh_token', $data->refreshJwt);
1493         DI::pConfig()->set($uid, 'bluesky', 'token_created', time());
1494         return $data->accessJwt;
1495 }
1496
1497 function bluesky_create_token(int $uid, string $password): string
1498 {
1499         $did = DI::pConfig()->get($uid, 'bluesky', 'did');
1500
1501         $data = bluesky_post($uid, '/xrpc/com.atproto.server.createSession', json_encode(['identifier' => $did, 'password' => $password]), ['Content-type' => 'application/json']);
1502         if (empty($data)) {
1503                 return '';
1504         }
1505
1506         Logger::debug('Created token', ['return' => $data]);
1507         DI::pConfig()->set($uid, 'bluesky', 'access_token', $data->accessJwt);
1508         DI::pConfig()->set($uid, 'bluesky', 'refresh_token', $data->refreshJwt);
1509         DI::pConfig()->set($uid, 'bluesky', 'token_created', time());
1510         return $data->accessJwt;
1511 }
1512
1513 function bluesky_xrpc_post(int $uid, string $url, $parameters): ?stdClass
1514 {
1515         return bluesky_post($uid, '/xrpc/' . $url, json_encode($parameters),  ['Content-type' => 'application/json', 'Authorization' => ['Bearer ' . bluesky_get_token($uid)]]);
1516 }
1517
1518 function bluesky_post(int $uid, string $url, string $params, array $headers): ?stdClass
1519 {
1520         try {
1521                 $curlResult = DI::httpClient()->post(DI::pConfig()->get($uid, 'bluesky', 'host') . $url, $params, $headers);
1522         } catch (\Exception $e) {
1523                 Logger::notice('Exception on post', ['exception' => $e]);
1524                 return null;
1525         }
1526
1527         if (!$curlResult->isSuccess()) {
1528                 Logger::notice('API Error', ['error' => json_decode($curlResult->getBody()) ?: $curlResult->getBody()]);
1529                 return null;
1530         }
1531
1532         return json_decode($curlResult->getBody());
1533 }
1534
1535 function bluesky_xrpc_get(int $uid, string $url, array $parameters = []): ?stdClass
1536 {
1537         if (!empty($parameters)) {
1538                 $url .= '?' . http_build_query($parameters);
1539         }
1540
1541         return bluesky_get($uid, '/xrpc/' . $url, HttpClientAccept::JSON, [HttpClientOptions::HEADERS => ['Authorization' => ['Bearer ' . bluesky_get_token($uid)]]]);
1542 }
1543
1544 function bluesky_get(int $uid, string $url, string $accept_content = HttpClientAccept::DEFAULT, array $opts = []): ?stdClass
1545 {
1546         try {
1547                 $curlResult = DI::httpClient()->get(DI::pConfig()->get($uid, 'bluesky', 'host') . $url, $accept_content, $opts);
1548         } catch (\Exception $e) {
1549                 Logger::notice('Exception on get', ['exception' => $e]);
1550                 return null;
1551         }
1552
1553         if (!$curlResult->isSuccess()) {
1554                 Logger::notice('API Error', ['error' => json_decode($curlResult->getBody()) ?: $curlResult->getBody()]);
1555                 return null;
1556         }
1557
1558         return json_decode($curlResult->getBody());
1559 }