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\GServer;
  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\Object\Image;
  47 use Friendica\Protocol\Activity;
  48 use Friendica\Protocol\Relay;
  49 use Friendica\Util\DateTimeFormat;
  50 use Friendica\Util\Strings;
  51
  52 const BLUESKY_DEFAULT_POLL_INTERVAL = 10; // given in minutes
  53 const BLUESKY_IMAGE_SIZE = [1000000, 500000, 100000, 50000];
  54
  55 /*
  56  * (Currently) hard wired paths for Bluesky services
  57  */
  58 const BLUESKY_DIRECTORY = 'https://plc.directory'; // Path to the directory server service to fetch the PDS of a given DID
  59 const BLUESKY_PDS       = 'https://bsky.social';   // Path to the personal data server service (PDS) to fetch the DID for a given handle
  60 const BLUESKY_WEB       = 'https://bsky.app';      // Path to the web interface with the user profile and posts
  61
  62 function bluesky_install()
  63 {
  64         Hook::register('load_config',             __FILE__, 'bluesky_load_config');
  65         Hook::register('hook_fork',               __FILE__, 'bluesky_hook_fork');
  66         Hook::register('post_local',              __FILE__, 'bluesky_post_local');
  67         Hook::register('notifier_normal',         __FILE__, 'bluesky_send');
  68         Hook::register('jot_networks',            __FILE__, 'bluesky_jot_nets');
  69         Hook::register('connector_settings',      __FILE__, 'bluesky_settings');
  70         Hook::register('connector_settings_post', __FILE__, 'bluesky_settings_post');
  71         Hook::register('cron',                    __FILE__, 'bluesky_cron');
  72         Hook::register('support_follow',          __FILE__, 'bluesky_support_follow');
  73         Hook::register('support_probe',           __FILE__, 'bluesky_support_probe');
  74         Hook::register('follow',                  __FILE__, 'bluesky_follow');
  75         Hook::register('unfollow',                __FILE__, 'bluesky_unfollow');
  76         Hook::register('block',                   __FILE__, 'bluesky_block');
  77         Hook::register('unblock',                 __FILE__, 'bluesky_unblock');
  78         Hook::register('check_item_notification', __FILE__, 'bluesky_check_item_notification');
  79         Hook::register('probe_detect',            __FILE__, 'bluesky_probe_detect');
  80         Hook::register('item_by_link',            __FILE__, 'bluesky_item_by_link');
  81 }
  82
  83 function bluesky_load_config(ConfigFileManager $loader)
  84 {
  85         DI::app()->getConfigCache()->load($loader->loadAddonConfig('bluesky'), \Friendica\Core\Config\ValueObject\Cache::SOURCE_STATIC);
  86 }
  87
  88 function bluesky_check_item_notification(array &$notification_data)
  89 {
  90         $did = DI::pConfig()->get($notification_data['uid'], 'bluesky', 'did');
  91
  92         if (!empty($did)) {
  93                 $notification_data['profiles'][] = $did;
  94         }
  95 }
  96
  97 function bluesky_probe_detect(array &$hookData)
  98 {
  99         // Don't overwrite an existing result
 100         if (isset($hookData['result'])) {
 101                 return;
 102         }
 103
 104         // Avoid a lookup for the wrong network
 105         if (!in_array($hookData['network'], ['', Protocol::BLUESKY])) {
 106                 return;
 107         }
 108
 109         $pconfig = DBA::selectFirst('pconfig', ['uid'], ["`cat` = ? AND `k` = ? AND `v` != ?", 'bluesky', 'access_token', '']);
 110         if (empty($pconfig['uid'])) {
 111                 return;
 112         }
 113
 114         if (parse_url($hookData['uri'], PHP_URL_SCHEME) == 'did') {
 115                 $did = $hookData['uri'];
 116         } elseif (preg_match('#^' . BLUESKY_WEB . '/profile/(.+)#', $hookData['uri'], $matches)) {
 117                 $did = bluesky_get_did($matches[1]);
 118                 if (empty($did)) {
 119                         return;
 120                 }
 121         } else {
 122                 return;
 123         }
 124
 125         $token = bluesky_get_token($pconfig['uid']);
 126         if (empty($token)) {
 127                 return;
 128         }
 129
 130         $data = bluesky_xrpc_get($pconfig['uid'], 'app.bsky.actor.getProfile', ['actor' => $did]);
 131         if (empty($data)) {
 132                 return;
 133         }
 134
 135         $hookData['result'] = bluesky_get_contact_fields($data, 0, false);
 136
 137         $hookData['result']['baseurl'] = bluesky_get_pds($did);
 138
 139         // Preparing probe data. This differs slightly from the contact array
 140         $hookData['result']['about']    = HTML::toBBCode($data->description ?? '');
 141         $hookData['result']['photo']    = $data->avatar ?? '';
 142         $hookData['result']['header']   = $data->banner ?? '';
 143         $hookData['result']['batch']    = '';
 144         $hookData['result']['notify']   = '';
 145         $hookData['result']['poll']     = '';
 146         $hookData['result']['poco']     = '';
 147         $hookData['result']['pubkey']   = '';
 148         $hookData['result']['priority'] = 0;
 149         $hookData['result']['guid']     = '';
 150 }
 151
 152 function bluesky_item_by_link(array &$hookData)
 153 {
 154         // Don't overwrite an existing result
 155         if (isset($hookData['item_id'])) {
 156                 return;
 157         }
 158
 159         $token = bluesky_get_token($hookData['uid']);
 160         if (empty($token)) {
 161                 return;
 162         }
 163
 164         if (!preg_match('#^' . BLUESKY_WEB . '/profile/(.+)/post/(.+)#', $hookData['uri'], $matches)) {
 165                 return;
 166         }
 167
 168         $did = bluesky_get_did($matches[1]);
 169         if (empty($did)) {
 170                 return;
 171         }
 172
 173         Logger::debug('Found bluesky post', ['url' => $hookData['uri'], 'handle' => $matches[1], 'did' => $did, 'cid' => $matches[2]]);
 174
 175         $uri = 'at://' . $did . '/app.bsky.feed.post/' . $matches[2];
 176
 177         $uri = bluesky_fetch_missing_post($uri, $hookData['uid'], 0, 0);
 178         Logger::debug('Got post', ['profile' => $matches[1], 'cid' => $matches[2], 'result' => $uri]);
 179         if (!empty($uri)) {
 180                 $item = Post::selectFirst(['id'], ['uri' => $uri, 'uid' => $hookData['uid']]);
 181                 if (!empty($item['id'])) {
 182                         $hookData['item_id'] = $item['id'];
 183                 }
 184         }
 185 }
 186
 187 function bluesky_support_follow(array &$data)
 188 {
 189         if ($data['protocol'] == Protocol::BLUESKY) {
 190                 $data['result'] = true;
 191         }
 192 }
 193
 194 function bluesky_support_probe(array &$data)
 195 {
 196         if ($data['protocol'] == Protocol::BLUESKY) {
 197                 $data['result'] = true;
 198         }
 199 }
 200
 201 function bluesky_follow(array &$hook_data)
 202 {
 203         $token = bluesky_get_token($hook_data['uid']);
 204         if (empty($token)) {
 205                 return;
 206         }
 207
 208         Logger::debug('Check if contact is bluesky', ['data' => $hook_data]);
 209         $contact = DBA::selectFirst('contact', [], ['network' => Protocol::BLUESKY, 'url' => $hook_data['url'], 'uid' => [0, $hook_data['uid']]]);
 210         if (empty($contact)) {
 211                 return;
 212         }
 213
 214         $record = [
 215                 'subject'   => $contact['url'],
 216                 'createdAt' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 217                 '$type'     => 'app.bsky.graph.follow'
 218         ];
 219
 220         $post = [
 221                 'collection' => 'app.bsky.graph.follow',
 222                 'repo'       => DI::pConfig()->get($hook_data['uid'], 'bluesky', 'did'),
 223                 'record'     => $record
 224         ];
 225
 226         $activity = bluesky_xrpc_post($hook_data['uid'], 'com.atproto.repo.createRecord', $post);
 227         if (!empty($activity->uri)) {
 228                 $hook_data['contact'] = $contact;
 229                 Logger::debug('Successfully start following', ['url' => $contact['url'], 'uri' => $activity->uri]);
 230         }
 231 }
 232
 233 function bluesky_unfollow(array &$hook_data)
 234 {
 235         $token = bluesky_get_token($hook_data['uid']);
 236         if (empty($token)) {
 237                 return;
 238         }
 239
 240         if ($hook_data['contact']['network'] != Protocol::BLUESKY) {
 241                 return;
 242         }
 243
 244         $data = bluesky_xrpc_get($hook_data['uid'], 'app.bsky.actor.getProfile', ['actor' => $hook_data['contact']['url']]);
 245         if (empty($data->viewer) || empty($data->viewer->following)) {
 246                 return;
 247         }
 248
 249         bluesky_delete_post($data->viewer->following, $hook_data['uid']);
 250
 251         $hook_data['result'] = true;
 252 }
 253
 254 function bluesky_block(array &$hook_data)
 255 {
 256         $token = bluesky_get_token($hook_data['uid']);
 257         if (empty($token)) {
 258                 return;
 259         }
 260
 261         Logger::debug('Check if contact is bluesky', ['data' => $hook_data]);
 262         $contact = DBA::selectFirst('contact', [], ['network' => Protocol::BLUESKY, 'url' => $hook_data['url'], 'uid' => [0, $hook_data['uid']]]);
 263         if (empty($contact)) {
 264                 return;
 265         }
 266
 267         $record = [
 268                 'subject'   => $contact['url'],
 269                 'createdAt' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 270                 '$type'     => 'app.bsky.graph.block'
 271         ];
 272
 273         $post = [
 274                 'collection' => 'app.bsky.graph.block',
 275                 'repo'       => DI::pConfig()->get($hook_data['uid'], 'bluesky', 'did'),
 276                 'record'     => $record
 277         ];
 278
 279         $activity = bluesky_xrpc_post($hook_data['uid'], 'com.atproto.repo.createRecord', $post);
 280         if (!empty($activity->uri)) {
 281                 $cdata = Contact::getPublicAndUserContactID($hook_data['contact']['id'], $hook_data['uid']);
 282                 if (!empty($cdata['user'])) {
 283                         Contact::remove($cdata['user']);
 284                 }
 285                 Logger::debug('Successfully blocked contact', ['url' => $hook_data['contact']['url'], 'uri' => $activity->uri]);
 286         }
 287 }
 288
 289 function bluesky_unblock(array &$hook_data)
 290 {
 291         $token = bluesky_get_token($hook_data['uid']);
 292         if (empty($token)) {
 293                 return;
 294         }
 295
 296         if ($hook_data['contact']['network'] != Protocol::BLUESKY) {
 297                 return;
 298         }
 299
 300         $data = bluesky_xrpc_get($hook_data['uid'], 'app.bsky.actor.getProfile', ['actor' => $hook_data['contact']['url']]);
 301         if (empty($data->viewer) || empty($data->viewer->blocking)) {
 302                 return;
 303         }
 304
 305         bluesky_delete_post($data->viewer->blocking, $hook_data['uid']);
 306
 307         $hook_data['result'] = true;
 308 }
 309
 310 function bluesky_settings(array &$data)
 311 {
 312         if (!DI::userSession()->getLocalUserId()) {
 313                 return;
 314         }
 315
 316         $enabled      = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post') ?? false;
 317         $def_enabled  = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post_by_default') ?? false;
 318         $pds          = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'pds');
 319         $handle       = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'handle');
 320         $did          = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'did');
 321         $token        = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'access_token');
 322         $import       = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'import') ?? false;
 323         $import_feeds = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'import_feeds') ?? false;
 324
 325         $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.');
 326
 327         $t    = Renderer::getMarkupTemplate('connector_settings.tpl', 'addon/bluesky/');
 328         $html = Renderer::replaceMacros($t, [
 329                 '$enable'       => ['bluesky', DI::l10n()->t('Enable Bluesky Post Addon'), $enabled],
 330                 '$bydefault'    => ['bluesky_bydefault', DI::l10n()->t('Post to Bluesky by default'), $def_enabled],
 331                 '$import'       => ['bluesky_import', DI::l10n()->t('Import the remote timeline'), $import],
 332                 '$import_feeds' => ['bluesky_import_feeds', DI::l10n()->t('Import the pinned feeds'), $import_feeds, DI::l10n()->t('When activated, Posts will be imported from all the feeds that you pinned in Bluesky.')],
 333                 '$pds'          => ['bluesky_pds', DI::l10n()->t('Personal Data Server'), $pds, DI::l10n()->t('The personal data server (PDS) is the system that hosts your profile.'), '', 'readonly'],
 334                 '$handle'       => ['bluesky_handle', DI::l10n()->t('Bluesky handle'), $handle],
 335                 '$did'          => ['bluesky_did', DI::l10n()->t('Bluesky DID'), $did, DI::l10n()->t('This is the unique identifier. It will be fetched automatically, when the handle is entered.'), '', 'readonly'],
 336                 '$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.")],
 337                 '$status'       => $status
 338         ]);
 339
 340         $data = [
 341                 'connector' => 'bluesky',
 342                 'title'     => DI::l10n()->t('Bluesky Import/Export'),
 343                 'image'     => 'images/bluesky.jpg',
 344                 'enabled'   => $enabled,
 345                 'html'      => $html,
 346         ];
 347 }
 348
 349 function bluesky_settings_post(array &$b)
 350 {
 351         if (empty($_POST['bluesky-submit'])) {
 352                 return;
 353         }
 354
 355         $old_pds    = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'pds');
 356         $old_handle = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'handle');
 357         $old_did    = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'did');
 358
 359         $handle = $_POST['bluesky_handle'];
 360
 361         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'post',            intval($_POST['bluesky']));
 362         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'post_by_default', intval($_POST['bluesky_bydefault']));
 363         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'handle',          $handle);
 364         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'import',          intval($_POST['bluesky_import']));
 365         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'import_feeds',    intval($_POST['bluesky_import_feeds']));
 366
 367         if (!empty($host) && !empty($handle)) {
 368                 if (empty($old_did) || $old_handle != $handle) {
 369                         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'did', bluesky_get_did(DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'handle')));
 370                 }
 371                 if (empty($old_pds) || $old_handle != $handle) {
 372                         DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'bluesky', 'pds', bluesky_get_pds(DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'did')));
 373                 }
 374         } else {
 375                 DI::pConfig()->delete(DI::userSession()->getLocalUserId(), 'bluesky', 'did');
 376                 DI::pConfig()->delete(DI::userSession()->getLocalUserId(), 'bluesky', 'pds');
 377         }
 378
 379         if (!empty($_POST['bluesky_password'])) {
 380                 bluesky_create_token(DI::userSession()->getLocalUserId(), $_POST['bluesky_password']);
 381         }
 382 }
 383
 384 function bluesky_jot_nets(array &$jotnets_fields)
 385 {
 386         if (!DI::userSession()->getLocalUserId()) {
 387                 return;
 388         }
 389
 390         if (DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post')) {
 391                 $jotnets_fields[] = [
 392                         'type'  => 'checkbox',
 393                         'field' => [
 394                                 'bluesky_enable',
 395                                 DI::l10n()->t('Post to Bluesky'),
 396                                 DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post_by_default')
 397                         ]
 398                 ];
 399         }
 400 }
 401
 402 function bluesky_cron()
 403 {
 404         $last = DI::keyValue()->get('bluesky_last_poll');
 405
 406         $poll_interval = intval(DI::config()->get('bluesky', 'poll_interval'));
 407         if (!$poll_interval) {
 408                 $poll_interval = BLUESKY_DEFAULT_POLL_INTERVAL;
 409         }
 410
 411         if ($last) {
 412                 $next = $last + ($poll_interval * 60);
 413                 if ($next > time()) {
 414                         Logger::notice('poll interval not reached');
 415                         return;
 416                 }
 417         }
 418         Logger::notice('cron_start');
 419
 420         $abandon_days = intval(DI::config()->get('system', 'account_abandon_days'));
 421         if ($abandon_days < 1) {
 422                 $abandon_days = 0;
 423         }
 424
 425         $abandon_limit = date(DateTimeFormat::MYSQL, time() - $abandon_days * 86400);
 426
 427         $pconfigs = DBA::selectToArray('pconfig', [], ['cat' => 'bluesky', 'k' => 'import', 'v' => true]);
 428         foreach ($pconfigs as $pconfig) {
 429                 if ($abandon_days != 0) {
 430                         if (!DBA::exists('user', ["`uid` = ? AND `login_date` >= ?", $pconfig['uid'], $abandon_limit])) {
 431                                 Logger::notice('abandoned account: timeline from user will not be imported', ['user' => $pconfig['uid']]);
 432                                 continue;
 433                         }
 434                 }
 435
 436                 // Refresh the token now, so that it doesn't need to be refreshed in parallel by the following workers
 437                 bluesky_get_token($pconfig['uid']);
 438
 439                 Worker::add(['priority' => Worker::PRIORITY_MEDIUM, 'force_priority' => true], 'addon/bluesky/bluesky_timeline.php', $pconfig['uid']);
 440                 Worker::add(['priority' => Worker::PRIORITY_MEDIUM, 'force_priority' => true], 'addon/bluesky/bluesky_notifications.php', $pconfig['uid']);
 441
 442                 if (DI::pConfig()->get($pconfig['uid'], 'bluesky', 'import_feeds')) {
 443                         $feeds = bluesky_get_feeds($pconfig['uid']);
 444                         foreach ($feeds as $feed) {
 445                                 Worker::add(['priority' => Worker::PRIORITY_MEDIUM, 'force_priority' => true], 'addon/bluesky/bluesky_feed.php', $pconfig['uid'], $feed);
 446                         }
 447                 }
 448         }
 449
 450         $last_clean = DI::keyValue()->get('bluesky_last_clean');
 451         if (empty($last_clean) || ($last_clean + 86400 < time())) {
 452                 Logger::notice('Start contact cleanup');
 453                 $contacts = DBA::select('account-user-view', ['id', 'pid'], ["`network` = ? AND `uid` != ? AND `rel` = ?", Protocol::BLUESKY, 0, Contact::NOTHING]);
 454                 while ($contact = DBA::fetch($contacts)) {
 455                         Worker::add(Worker::PRIORITY_LOW, 'MergeContact', $contact['pid'], $contact['id'], 0);
 456                 }
 457                 DBA::close($contacts);
 458                 DI::keyValue()->set('bluesky_last_clean', time());
 459                 Logger::notice('Contact cleanup done');
 460         }
 461
 462         Logger::notice('cron_end');
 463
 464         DI::keyValue()->set('bluesky_last_poll', time());
 465 }
 466
 467 function bluesky_hook_fork(array &$b)
 468 {
 469         if ($b['name'] != 'notifier_normal') {
 470                 return;
 471         }
 472
 473         $post = $b['data'];
 474
 475         if (($post['created'] !== $post['edited']) && !$post['deleted']) {
 476                 DI::logger()->info('Editing is not supported by the addon');
 477                 $b['execute'] = false;
 478                 return;
 479         }
 480
 481         if (DI::pConfig()->get($post['uid'], 'bluesky', 'import')) {
 482                 // Don't post if it isn't a reply to a bluesky post
 483                 if (($post['parent'] != $post['id']) && !Post::exists(['id' => $post['parent'], 'network' => Protocol::BLUESKY])) {
 484                         Logger::notice('No bluesky parent found', ['item' => $post['id']]);
 485                         $b['execute'] = false;
 486                         return;
 487                 }
 488         } elseif (!strstr($post['postopts'] ?? '', 'bluesky') || ($post['parent'] != $post['id']) || $post['private']) {
 489                 DI::logger()->info('Activities are never exported when we don\'t import the bluesky timeline', ['uid' => $post['uid']]);
 490                 $b['execute'] = false;
 491                 return;
 492         }
 493 }
 494
 495 function bluesky_post_local(array &$b)
 496 {
 497         if ($b['edit']) {
 498                 return;
 499         }
 500
 501         if (!DI::userSession()->getLocalUserId() || (DI::userSession()->getLocalUserId() != $b['uid'])) {
 502                 return;
 503         }
 504
 505         if ($b['private'] || $b['parent']) {
 506                 return;
 507         }
 508
 509         $bluesky_post   = intval(DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post'));
 510         $bluesky_enable = (($bluesky_post && !empty($_REQUEST['bluesky_enable'])) ? intval($_REQUEST['bluesky_enable']) : 0);
 511
 512         // if API is used, default to the chosen settings
 513         if ($b['api_source'] && intval(DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'bluesky', 'post_by_default'))) {
 514                 $bluesky_enable = 1;
 515         }
 516
 517         if (!$bluesky_enable) {
 518                 return;
 519         }
 520
 521         if (strlen($b['postopts'])) {
 522                 $b['postopts'] .= ',';
 523         }
 524
 525         $b['postopts'] .= 'bluesky';
 526 }
 527
 528 function bluesky_send(array &$b)
 529 {
 530         if (($b['created'] !== $b['edited']) && !$b['deleted']) {
 531                 return;
 532         }
 533
 534         if ($b['gravity'] != Item::GRAVITY_PARENT) {
 535                 Logger::debug('Got comment', ['item' => $b]);
 536
 537                 if ($b['deleted']) {
 538                         $uri = bluesky_get_uri_class($b['uri']);
 539                         if (empty($uri)) {
 540                                 Logger::debug('Not a bluesky post', ['uri' => $b['uri']]);
 541                                 return;
 542                         }
 543                         bluesky_delete_post($b['uri'], $b['uid']);
 544                         return;
 545                 }
 546
 547                 $root   = bluesky_get_uri_class($b['parent-uri']);
 548                 $parent = bluesky_get_uri_class($b['thr-parent']);
 549
 550                 if (empty($root) || empty($parent)) {
 551                         Logger::debug('No bluesky post', ['parent' => $b['parent'], 'thr-parent' => $b['thr-parent']]);
 552                         return;
 553                 }
 554
 555                 if ($b['gravity'] == Item::GRAVITY_COMMENT) {
 556                         Logger::debug('Posting comment', ['root' => $root, 'parent' => $parent]);
 557                         bluesky_create_post($b, $root, $parent);
 558                         return;
 559                 } elseif (in_array($b['verb'], [Activity::LIKE, Activity::ANNOUNCE])) {
 560                         bluesky_create_activity($b, $parent);
 561                 }
 562                 return;
 563         } elseif ($b['private'] || !strstr($b['postopts'], 'bluesky')) {
 564                 return;
 565         }
 566
 567         bluesky_create_post($b);
 568 }
 569
 570 function bluesky_create_activity(array $item, stdClass $parent = null)
 571 {
 572         $uid = $item['uid'];
 573         $token = bluesky_get_token($uid);
 574         if (empty($token)) {
 575                 return;
 576         }
 577
 578         $did  = DI::pConfig()->get($uid, 'bluesky', 'did');
 579
 580         if ($item['verb'] == Activity::LIKE) {
 581                 $record = [
 582                         'subject'   => $parent,
 583                         'createdAt' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 584                         '$type'     => 'app.bsky.feed.like'
 585                 ];
 586
 587                 $post = [
 588                         'collection' => 'app.bsky.feed.like',
 589                         'repo'       => $did,
 590                         'record'     => $record
 591                 ];
 592         } elseif ($item['verb'] == Activity::ANNOUNCE) {
 593                 $record = [
 594                         'subject'   => $parent,
 595                         'createdAt' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 596                         '$type'     => 'app.bsky.feed.repost'
 597                 ];
 598
 599                 $post = [
 600                         'collection' => 'app.bsky.feed.repost',
 601                         'repo'       => $did,
 602                         'record'     => $record
 603                 ];
 604         }
 605
 606         $activity = bluesky_xrpc_post($uid, 'com.atproto.repo.createRecord', $post);
 607         if (empty($activity)) {
 608                 return;
 609         }
 610         Logger::debug('Activity done', ['return' => $activity]);
 611         $uri = bluesky_get_uri($activity);
 612         Item::update(['extid' => $uri], ['id' => $item['id']]);
 613         Logger::debug('Set extid', ['id' => $item['id'], 'extid' => $activity]);
 614 }
 615
 616 function bluesky_create_post(array $item, stdClass $root = null, stdClass $parent = null)
 617 {
 618         $uid = $item['uid'];
 619         $token = bluesky_get_token($uid);
 620         if (empty($token)) {
 621                 return;
 622         }
 623
 624         // Try to fetch the language from the post itself
 625         if (!empty($item['language'])) {
 626                 $language = array_key_first(json_decode($item['language'], true));
 627         } else {
 628                 $language = '';
 629         }
 630
 631         $did  = DI::pConfig()->get($uid, 'bluesky', 'did');
 632         $urls = bluesky_get_urls(Post\Media::removeFromBody($item['body']));
 633         $item['body'] = $urls['body'];
 634
 635         $msg = Plaintext::getPost($item, 300, false, BBCode::BLUESKY);
 636         foreach ($msg['parts'] as $key => $part) {
 637
 638                 $facets = bluesky_get_facets($part, $urls['urls']);
 639
 640                 $record = [
 641                         'text'      => $facets['body'],
 642                         '$type'     => 'app.bsky.feed.post',
 643                         'createdAt' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 644                 ];
 645
 646                 if (!empty($language)) {
 647                         $record['langs'] = [$language];
 648                 }
 649
 650                 if (!empty($facets['facets'])) {
 651                         $record['facets'] = $facets['facets'];
 652                 }
 653
 654                 if (!empty($root)) {
 655                         $record['reply'] = ['root' => $root, 'parent' => $parent];
 656                 }
 657
 658                 if ($key == count($msg['parts']) - 1) {
 659                         $record = bluesky_add_embed($uid, $msg, $record);
 660                         if (empty($record)) {
 661                                 if (Worker::getRetrial() < 3) {
 662                                         Worker::defer();
 663                                 }
 664                                 return;
 665                         }
 666                 }
 667
 668                 $post = [
 669                         'collection' => 'app.bsky.feed.post',
 670                         'repo'       => $did,
 671                         'record'     => $record
 672                 ];
 673
 674                 $parent = bluesky_xrpc_post($uid, 'com.atproto.repo.createRecord', $post);
 675                 if (empty($parent)) {
 676                         if ($part == 0) {
 677                                 Worker::defer();
 678                         }
 679                         return;
 680                 }
 681                 Logger::debug('Posting done', ['return' => $parent]);
 682                 if (empty($root)) {
 683                         $root = $parent;
 684                 }
 685                 if (($key == 0) && ($item['gravity'] != Item::GRAVITY_PARENT)) {
 686                         $uri = bluesky_get_uri($parent);
 687                         Item::update(['extid' => $uri], ['id' => $item['id']]);
 688                         Logger::debug('Set extid', ['id' => $item['id'], 'extid' => $uri]);
 689                 }
 690         }
 691 }
 692
 693 function bluesky_get_urls(string $body): array
 694 {
 695         // Remove all hashtag and mention links
 696         $body = preg_replace("/([#@!])\[url\=(.*?)\](.*?)\[\/url\]/ism", '$1$3', $body);
 697
 698         $body = BBCode::expandVideoLinks($body);
 699         $urls = [];
 700
 701         // Search for pure links
 702         if (preg_match_all("/\[url\](https?:.*?)\[\/url\]/ism", $body, $matches, PREG_SET_ORDER)) {
 703                 foreach ($matches as $match) {
 704                         $text = Strings::getStyledURL($match[1]);
 705                         $hash = bluesky_get_hash_for_url($match[0], mb_strlen($text));
 706                         $urls[] = ['url' => $match[1], 'text' => $text, 'hash' => $hash];
 707                         $body = str_replace($match[0], $hash, $body);
 708                 }
 709         }
 710
 711         // Search for links with descriptions
 712         if (preg_match_all("/\[url\=(https?:.*?)\](.*?)\[\/url\]/ism", $body, $matches, PREG_SET_ORDER)) {
 713                 foreach ($matches as $match) {
 714                         if ($match[1] == $match[2]) {
 715                                 $text = Strings::getStyledURL($match[1]);
 716                         } else {
 717                                 $text = $match[2];
 718                         }
 719                         if (mb_strlen($text) < 100) {
 720                                 $hash = bluesky_get_hash_for_url($match[0], mb_strlen($text));
 721                                 $urls[] = ['url' => $match[1], 'text' => $text, 'hash' => $hash];
 722                                 $body = str_replace($match[0], $hash, $body);
 723                         } else {
 724                                 $text = Strings::getStyledURL($match[1]);
 725                                 $hash = bluesky_get_hash_for_url($match[0], mb_strlen($text));
 726                                 $urls[] = ['url' => $match[1], 'text' => $text, 'hash' => $hash];
 727                                 $body = str_replace($match[0], $text . ' ' . $hash, $body);
 728                         }
 729                 }
 730         }
 731
 732         return ['body' => $body, 'urls' => $urls];
 733 }
 734
 735 function bluesky_get_hash_for_url(string $text, int $linklength): string
 736 {
 737         if ($linklength <= 10) {
 738                 return '|' . hash('crc32', $text) . '|';
 739         }
 740         return substr('|' . hash('crc32', $text) . base64_encode($text), 0, $linklength - 2) . '|';
 741 }
 742
 743 function bluesky_get_facets(string $body, array $urls): array
 744 {
 745         $facets = [];
 746
 747         foreach ($urls as $url) {
 748                 $pos = strpos($body, $url['hash']);
 749                 if ($pos === false) {
 750                         continue;
 751                 }
 752                 if ($pos > 0) {
 753                         $prefix = substr($body, 0, $pos);
 754                 } else {
 755                         $prefix = '';
 756                 }
 757
 758                 $body = $prefix . $url['text'] . substr($body, $pos + strlen($url['hash']));
 759
 760                 $facet = new stdClass;
 761                 $facet->index = new stdClass;
 762                 $facet->index->byteEnd   = $pos + strlen($url['text']);
 763                 $facet->index->byteStart = $pos;
 764
 765                 $feature = new stdClass;
 766                 $feature->uri = $url['url'];
 767                 $type = '$type';
 768                 $feature->$type = 'app.bsky.richtext.facet#link';
 769
 770                 $facet->features = [$feature];
 771                 $facets[] = $facet;
 772         }
 773
 774         return ['facets' => $facets, 'body' => $body];
 775 }
 776
 777 function bluesky_add_embed(int $uid, array $msg, array $record): array
 778 {
 779         if (($msg['type'] != 'link') && !empty($msg['images'])) {
 780                 $images = [];
 781                 foreach ($msg['images'] as $image) {
 782                         if (count($images) == 4) {
 783                                 continue;
 784                         }
 785                         $photo = Photo::selectFirst([], ['id' => $image['id']]);
 786                         $blob = bluesky_upload_blob($uid, $photo);
 787                         if (empty($blob)) {
 788                                 return [];
 789                         }
 790                         $images[] = ['alt' => $image['description'] ?? '', 'image' => $blob];
 791                 }
 792                 if (!empty($images)) {
 793                         $record['embed'] = ['$type' => 'app.bsky.embed.images', 'images' => $images];
 794                 }
 795         } elseif ($msg['type'] == 'link') {
 796                 $record['embed'] = [
 797                         '$type'    => 'app.bsky.embed.external',
 798                         'external' => [
 799                                 'uri'         => $msg['url'],
 800                                 'title'       => $msg['title'] ?? '',
 801                                 'description' => $msg['description'] ?? '',
 802                         ]
 803                 ];
 804                 if (!empty($msg['image'])) {
 805                         $photo = Photo::createPhotoForExternalResource($msg['image']);
 806                         $blob = bluesky_upload_blob($uid, $photo);
 807                         if (!empty($blob)) {
 808                                 $record['embed']['external']['thumb'] = $blob;
 809                         }
 810                 }
 811         }
 812         return $record;
 813 }
 814
 815 function bluesky_upload_blob(int $uid, array $photo): ?stdClass
 816 {
 817         $retrial = Worker::getRetrial();
 818         $content = Photo::getImageForPhoto($photo);
 819
 820         $picture = new Image($content, $photo['type']);
 821         $height  = $picture->getHeight();
 822         $width   = $picture->getWidth();
 823         $size    = strlen($content);
 824
 825         $picture    = Photo::resizeToFileSize($picture, BLUESKY_IMAGE_SIZE[$retrial]);
 826         $new_height = $picture->getHeight();
 827         $new_width  = $picture->getWidth();
 828         $content    = $picture->asString();
 829         $new_size   = strlen($content);
 830
 831         Logger::info('Uploading', ['uid' => $uid, 'retrial' => $retrial, 'height' => $new_height, 'width' => $new_width, 'size' => $new_size, 'orig-height' => $height, 'orig-width' => $width, 'orig-size' => $size]);
 832
 833         $data = bluesky_post($uid, '/xrpc/com.atproto.repo.uploadBlob', $content, ['Content-type' => $photo['type'], 'Authorization' => ['Bearer ' . bluesky_get_token($uid)]]);
 834         if (empty($data)) {
 835                 Logger::info('Uploading failed', ['uid' => $uid, 'retrial' => $retrial, 'height' => $new_height, 'width' => $new_width, 'size' => $new_size, 'orig-height' => $height, 'orig-width' => $width, 'orig-size' => $size]);
 836                 return null;
 837         }
 838
 839         Logger::debug('Uploaded blob', ['return' => $data, 'uid' => $uid, 'retrial' => $retrial, 'height' => $new_height, 'width' => $new_width, 'size' => $new_size, 'orig-height' => $height, 'orig-width' => $width, 'orig-size' => $size]);
 840         return $data->blob;
 841 }
 842
 843 function bluesky_delete_post(string $uri, int $uid)
 844 {
 845         $parts = bluesky_get_uri_parts($uri);
 846         if (empty($parts)) {
 847                 Logger::debug('No uri delected', ['uri' => $uri]);
 848                 return;
 849         }
 850         bluesky_xrpc_post($uid, 'com.atproto.repo.deleteRecord', $parts);
 851         Logger::debug('Deleted', ['parts' => $parts]);
 852 }
 853
 854 function bluesky_fetch_timeline(int $uid)
 855 {
 856         $data = bluesky_xrpc_get($uid, 'app.bsky.feed.getTimeline');
 857         if (empty($data)) {
 858                 return;
 859         }
 860
 861         if (empty($data->feed)) {
 862                 return;
 863         }
 864
 865         foreach (array_reverse($data->feed) as $entry) {
 866                 bluesky_process_post($entry->post, $uid, Item::PR_NONE, 0);
 867                 if (!empty($entry->reason)) {
 868                         bluesky_process_reason($entry->reason, bluesky_get_uri($entry->post), $uid);
 869                 }
 870         }
 871
 872         // @todo Support paging
 873         // [cursor] => 1684670516000::bafyreidq3ilwslmlx72jf5vrk367xcc63s6lrhzlyup2bi3zwcvso6w2vi
 874 }
 875
 876 function bluesky_process_reason(stdClass $reason, string $uri, int $uid)
 877 {
 878         $type = '$type';
 879         if ($reason->$type != 'app.bsky.feed.defs#reasonRepost') {
 880                 return;
 881         }
 882
 883         $contact = bluesky_get_contact($reason->by, $uid, $uid);
 884
 885         $item = [
 886                 'network'       => Protocol::BLUESKY,
 887                 'uid'           => $uid,
 888                 'wall'          => false,
 889                 'uri'           => $reason->by->did . '/app.bsky.feed.repost/' . $reason->indexedAt,
 890                 'private'       => Item::UNLISTED,
 891                 'verb'          => Activity::POST,
 892                 'contact-id'    => $contact['id'],
 893                 'author-name'   => $contact['name'],
 894                 'author-link'   => $contact['url'],
 895                 'author-avatar' => $contact['avatar'],
 896                 'verb'          => Activity::ANNOUNCE,
 897                 'body'          => Activity::ANNOUNCE,
 898                 'gravity'       => Item::GRAVITY_ACTIVITY,
 899                 'object-type'   => Activity\ObjectType::NOTE,
 900                 'thr-parent'    => $uri,
 901         ];
 902
 903         if (Post::exists(['uri' => $item['uri'], 'uid' => $uid])) {
 904                 return;
 905         }
 906
 907         $item['guid']         = Item::guidFromUri($item['uri'], $contact['alias']);
 908         $item['owner-name']   = $item['author-name'];
 909         $item['owner-link']   = $item['author-link'];
 910         $item['owner-avatar'] = $item['author-avatar'];
 911         if (Item::insert($item)) {
 912                 $cdata = Contact::getPublicAndUserContactID($contact['id'], $uid);
 913                 Item::update(['post-reason' => Item::PR_ANNOUNCEMENT, 'causer-id' => $cdata['public']], ['uri' => $uri, 'uid' => $uid]);
 914         }
 915 }
 916
 917 function bluesky_fetch_notifications(int $uid)
 918 {
 919         $data = bluesky_xrpc_get($uid, 'app.bsky.notification.listNotifications');
 920         if (empty($data->notifications)) {
 921                 return;
 922         }
 923         foreach ($data->notifications as $notification) {
 924                 $uri = bluesky_get_uri($notification);
 925                 if (Post::exists(['uri' => $uri, 'uid' => $uid]) || Post::exists(['extid' => $uri, 'uid' => $uid])) {
 926                         Logger::debug('Notification already processed', ['uid' => $uid, 'reason' => $notification->reason, 'uri' => $uri, 'indexedAt' => $notification->indexedAt]);
 927                         continue;
 928                 }
 929                 Logger::debug('Process notification', ['uid' => $uid, 'reason' => $notification->reason, 'uri' => $uri, 'indexedAt' => $notification->indexedAt]);
 930                 switch ($notification->reason) {
 931                         case 'like':
 932                                 $item = bluesky_get_header($notification, $uri, $uid, $uid);
 933                                 $item['gravity'] = Item::GRAVITY_ACTIVITY;
 934                                 $item['body'] = $item['verb'] = Activity::LIKE;
 935                                 $item['thr-parent'] = bluesky_get_uri($notification->record->subject);
 936                                 $item['thr-parent'] = bluesky_fetch_missing_post($item['thr-parent'], $uid, $item['contact-id'], 0);
 937                                 if (!empty($item['thr-parent'])) {
 938                                         $data = Item::insert($item);
 939                                         Logger::debug('Got like', ['uid' => $uid, 'result' => $data, 'uri' => $uri]);
 940                                 } else {
 941                                         Logger::info('Thread parent not found', ['uid' => $uid, 'parent' => $item['thr-parent'], 'uri' => $uri]);
 942                                 }
 943                         break;
 944
 945                         case 'repost':
 946                                 $item = bluesky_get_header($notification, $uri, $uid, $uid);
 947                                 $item['gravity'] = Item::GRAVITY_ACTIVITY;
 948                                 $item['body'] = $item['verb'] = Activity::ANNOUNCE;
 949                                 $item['thr-parent'] = bluesky_get_uri($notification->record->subject);
 950                                 $item['thr-parent'] = bluesky_fetch_missing_post($item['thr-parent'], $uid, $item['contact-id'], 0);
 951                                 if (!empty($item['thr-parent'])) {
 952                                         $data = Item::insert($item);
 953                                         Logger::debug('Got repost', ['uid' => $uid, 'result' => $data, 'uri' => $uri]);
 954                                 } else {
 955                                         Logger::info('Thread parent not found', ['uid' => $uid, 'parent' => $item['thr-parent'], 'uri' => $uri]);
 956                                 }
 957                         break;
 958
 959                         case 'follow':
 960                                 $contact = bluesky_get_contact($notification->author, $uid, $uid);
 961                                 Logger::debug('New follower', ['uid' => $uid, 'nick' => $contact['nick'], 'uri' => $uri]);
 962                                 break;
 963
 964                         case 'mention':
 965                                 $data = bluesky_process_post($notification, $uid, Item::PR_PUSHED, 0);
 966                                 Logger::debug('Got mention', ['uid' => $uid, 'result' => $data, 'uri' => $uri]);
 967                                 break;
 968
 969                         case 'reply':
 970                                 $data = bluesky_process_post($notification, $uid, Item::PR_PUSHED, 0);
 971                                 Logger::debug('Got reply', ['uid' => $uid, 'result' => $data, 'uri' => $uri]);
 972                                 break;
 973
 974                         case 'quote':
 975                                 $data = bluesky_process_post($notification, $uid, Item::PR_PUSHED, 0);
 976                                 Logger::debug('Got quote', ['uid' => $uid, 'result' => $data, 'uri' => $uri]);
 977                                 break;
 978
 979                         default:
 980                                 Logger::notice('Unhandled reason', ['reason' => $notification->reason, 'uri' => $uri]);
 981                                 break;
 982                 }
 983         }
 984 }
 985
 986 function bluesky_fetch_feed(int $uid, string $feed)
 987 {
 988         $data = bluesky_xrpc_get($uid, 'app.bsky.feed.getFeed', ['feed' => $feed]);
 989         if (empty($data)) {
 990                 return;
 991         }
 992
 993         if (empty($data->feed)) {
 994                 return;
 995         }
 996
 997         $feeddata = bluesky_xrpc_get($uid, 'app.bsky.feed.getFeedGenerator', ['feed' => $feed]);
 998         if (!empty($feeddata)) {
 999                 $feedurl  = $feeddata->view->uri;
1000                 $feedname = $feeddata->view->displayName;
1001         } else {
1002                 $feedurl  = $feed;
1003                 $feedname = $feed;
1004         }
1005
1006         foreach (array_reverse($data->feed) as $entry) {
1007                 $contact   = bluesky_get_contact($entry->post->author, 0, $uid);
1008                 $languages = $entry->post->record->langs ?? [];
1009
1010                 if (!Relay::isWantedLanguage($entry->post->record->text, 0, $contact['id'] ?? 0, $languages)) {
1011                         Logger::debug('Unwanted language detected', ['text' => $entry->post->record->text]);
1012                         continue;
1013                 }
1014                 $id = bluesky_process_post($entry->post, $uid, Item::PR_TAG, 0);
1015                 if (!empty($id)) {
1016                         $post = Post::selectFirst(['uri-id'], ['id' => $id]);
1017                         if (!empty($post['uri-id'])) {
1018                                 $stored = Post\Category::storeFileByURIId($post['uri-id'], $uid, Post\Category::SUBCRIPTION, $feedname, $feedurl);
1019                                 Logger::debug('Stored tag subscription for user', ['uri-id' => $post['uri-id'], 'uid' => $uid, 'name' => $feedname, 'url' => $feedurl, 'stored' => $stored]);
1020                         } else {
1021                                 Logger::notice('Post not found', ['id' => $id, 'entry' => $entry]);
1022                         }
1023                 }
1024                 if (!empty($entry->reason)) {
1025                         bluesky_process_reason($entry->reason, bluesky_get_uri($entry->post), $uid);
1026                 }
1027         }
1028 }
1029
1030 function bluesky_process_post(stdClass $post, int $uid, int $post_reason, $level): int
1031 {
1032         $uri = bluesky_get_uri($post);
1033
1034         if ($id = Post::selectFirst(['id'], ['uri' => $uri, 'uid' => $uid])) {
1035                 return $id['id'];
1036         }
1037
1038         if ($id = Post::selectFirst(['id'], ['extid' => $uri, 'uid' => $uid])) {
1039                 return $id['id'];
1040         }
1041
1042         Logger::debug('Importing post', ['uid' => $uid, 'indexedAt' => $post->indexedAt, 'uri' => $post->uri, 'cid' => $post->cid, 'root' => $post->record->reply->root ?? '']);
1043
1044         $item = bluesky_get_header($post, $uri, $uid, $uid);
1045         $item = bluesky_get_content($item, $post->record, $uri, $uid, $level);
1046         if (empty($item)) {
1047                 return 0;
1048         }
1049
1050         if (!empty($post->embed)) {
1051                 $item = bluesky_add_media($post->embed, $item, $uid, $level);
1052         }
1053
1054         if (empty($item['post-reason'])) {
1055                 $item['post-reason'] = $post_reason;
1056         }
1057
1058         return item::insert($item);
1059 }
1060
1061 function bluesky_get_header(stdClass $post, string $uri, int $uid, int $fetch_uid): array
1062 {
1063         $parts = bluesky_get_uri_parts($uri);
1064         if (empty($post->author)) {
1065                 return [];
1066         }
1067         $contact = bluesky_get_contact($post->author, $uid, $fetch_uid);
1068         $item = [
1069                 'network'       => Protocol::BLUESKY,
1070                 'uid'           => $uid,
1071                 'wall'          => false,
1072                 'uri'           => $uri,
1073                 'guid'          => $post->cid,
1074                 'private'       => Item::UNLISTED,
1075                 'verb'          => Activity::POST,
1076                 'contact-id'    => $contact['id'],
1077                 'author-name'   => $contact['name'],
1078                 'author-link'   => $contact['url'],
1079                 'author-avatar' => $contact['avatar'],
1080                 'plink'         => $contact['alias'] . '/post/' . $parts->rkey,
1081                 'source'        => json_encode($post),
1082         ];
1083
1084         $item['uri-id']       = ItemURI::getIdByURI($uri);
1085         $item['owner-name']   = $item['author-name'];
1086         $item['owner-link']   = $item['author-link'];
1087         $item['owner-avatar'] = $item['author-avatar'];
1088
1089         if (in_array($contact['rel'], [Contact::SHARING, Contact::FRIEND])) {
1090                 $item['post-reason'] = Item::PR_FOLLOWER;
1091         }
1092
1093         return $item;
1094 }
1095
1096 function bluesky_get_content(array $item, stdClass $record, string $uri, int $uid, int $level): array
1097 {
1098         if (empty($item)) {
1099                 return [];
1100         }
1101
1102         if (!empty($record->reply)) {
1103                 $item['parent-uri'] = bluesky_get_uri($record->reply->root);
1104                 if ($item['parent-uri'] != $uri) {
1105                         $item['parent-uri'] = bluesky_fetch_missing_post($item['parent-uri'], $uid, $item['contact-id'], $level);
1106                         if (empty($item['parent-uri'])) {
1107                                 return [];
1108                         }
1109                 }
1110
1111                 $item['thr-parent'] = bluesky_get_uri($record->reply->parent);
1112                 if (!in_array($item['thr-parent'], [$uri, $item['parent-uri']])) {
1113                         $item['thr-parent'] = bluesky_fetch_missing_post($item['thr-parent'], $uid, $item['contact-id'], $level, $item['parent-uri']);
1114                         if (empty($item['thr-parent'])) {
1115                                 return [];
1116                         }
1117                 }
1118         }
1119
1120         $item['body']    = bluesky_get_text($record);
1121         $item['created'] = DateTimeFormat::utc($record->createdAt, DateTimeFormat::MYSQL);
1122         $item['transmitted-languages'] = $record->langs ?? [];
1123         return $item;
1124 }
1125
1126 function bluesky_get_text(stdClass $record): string
1127 {
1128         $text = $record->text ?? '';
1129
1130         if (empty($record->facets)) {
1131                 return $text;
1132         }
1133
1134         $facets = [];
1135         foreach ($record->facets as $facet) {
1136                 $facets[$facet->index->byteStart] = $facet;
1137         }
1138         krsort($facets);
1139
1140         foreach ($facets as $facet) {
1141                 $prefix   = substr($text, 0, $facet->index->byteStart);
1142                 $linktext = substr($text, $facet->index->byteStart, $facet->index->byteEnd - $facet->index->byteStart);
1143                 $suffix   = substr($text, $facet->index->byteEnd);
1144
1145                 $url  = '';
1146                 $type = '$type';
1147                 foreach ($facet->features as $feature) {
1148
1149                         switch ($feature->$type) {
1150                                 case 'app.bsky.richtext.facet#link':
1151                                         $url = $feature->uri;
1152                                         break;
1153
1154                                 case 'app.bsky.richtext.facet#mention':
1155                                         $contact = Contact::getByURL($feature->did, null, ['id']);
1156                                         if (!empty($contact['id'])) {
1157                                                 $url = DI::baseUrl() . '/contact/' . $contact['id'];
1158                                                 if (substr($linktext, 0, 1) == '@') {
1159                                                         $prefix .= '@';
1160                                                         $linktext = substr($linktext, 1);
1161                                                 }
1162                                         }
1163                                         break;
1164
1165                                 default:
1166                                         Logger::notice('Unhandled feature type', ['type' => $feature->$type, 'record' => $record]);
1167                                         break;
1168                         }
1169                 }
1170                 if (!empty($url)) {
1171                         $text = $prefix . '[url=' . $url . ']' . $linktext . '[/url]' . $suffix;
1172                 }
1173         }
1174         return $text;
1175 }
1176
1177 function bluesky_add_media(stdClass $embed, array $item, int $fetch_uid, int $level): array
1178 {
1179         $type = '$type';
1180         switch ($embed->$type) {
1181                 case 'app.bsky.embed.images#view':
1182                         foreach ($embed->images as $image) {
1183                                 $media = [
1184                                         'uri-id'      => $item['uri-id'],
1185                                         'type'        => Post\Media::IMAGE,
1186                                         'url'         => $image->fullsize,
1187                                         'preview'     => $image->thumb,
1188                                         'description' => $image->alt,
1189                                 ];
1190                                 Post\Media::insert($media);
1191                         }
1192                         break;
1193
1194                 case 'app.bsky.embed.external#view':
1195                         $media = [
1196                                 'uri-id' => $item['uri-id'],
1197                                 'type'        => Post\Media::HTML,
1198                                 'url'         => $embed->external->uri,
1199                                 'name'        => $embed->external->title,
1200                                 'description' => $embed->external->description,
1201                         ];
1202                         Post\Media::insert($media);
1203                         break;
1204
1205                 case 'app.bsky.embed.record#view':
1206                         $uri = bluesky_get_uri($embed->record);
1207                         $shared = Post::selectFirst(['uri-id'], ['uri' => $uri, 'uid' => $item['uid']]);
1208                         if (empty($shared)) {
1209                                 if (empty($embed->record->value)) {
1210                                         Logger::info('Record has got no value', ['record' => $embed->record]);
1211                                         break;
1212                                 }
1213                                 $shared = bluesky_get_header($embed->record, $uri, 0, $fetch_uid);
1214                                 $shared = bluesky_get_content($shared, $embed->record->value, $uri, $item['uid'], $level);
1215                                 if (!empty($shared)) {
1216                                         if (!empty($embed->record->embeds)) {
1217                                                 foreach ($embed->record->embeds as $single) {
1218                                                         $shared = bluesky_add_media($single, $shared, $fetch_uid, $level);
1219                                                 }
1220                                         }
1221                                         Item::insert($shared);
1222                                 }
1223                         }
1224                         if (!empty($shared['uri-id'])) {
1225                                 $item['quote-uri-id'] = $shared['uri-id'];
1226                         }
1227                         break;
1228
1229                 case 'app.bsky.embed.recordWithMedia#view':
1230                         $uri = bluesky_get_uri($embed->record->record);
1231                         $shared = Post::selectFirst(['uri-id'], ['uri' => $uri, 'uid' => $item['uid']]);
1232                         if (empty($shared)) {
1233                                 $shared = bluesky_get_header($embed->record->record, $uri, 0, $fetch_uid);
1234                                 $shared = bluesky_get_content($shared, $embed->record->record->value, $uri, $item['uid'], $level);
1235                                 if (!empty($shared)) {
1236                                         if (!empty($embed->record->record->embeds)) {
1237                                                 foreach ($embed->record->record->embeds as $single) {
1238                                                         $shared = bluesky_add_media($single, $shared, $fetch_uid, $level);
1239                                                 }
1240                                         }
1241                                         Item::insert($shared);
1242                                 }
1243                         }
1244                         if (!empty($shared['uri-id'])) {
1245                                 $item['quote-uri-id'] = $shared['uri-id'];
1246                         }
1247
1248                         if (!empty($embed->media)) {
1249                                 $item = bluesky_add_media($embed->media, $item, $fetch_uid, $level);
1250                         }
1251                         break;
1252
1253                 default:
1254                         Logger::notice('Unhandled embed type', ['type' => $embed->$type, 'embed' => $embed]);
1255                         break;
1256         }
1257         return $item;
1258 }
1259
1260 function bluesky_get_uri(stdClass $post): string
1261 {
1262         if (empty($post->cid)) {
1263                 Logger::info('Invalid URI', ['post' => $post]);
1264                 return '';
1265         }
1266         return $post->uri . ':' . $post->cid;
1267 }
1268
1269 function bluesky_get_uri_class(string $uri): ?stdClass
1270 {
1271         if (empty($uri)) {
1272                 return null;
1273         }
1274
1275         $elements = explode(':', $uri);
1276         if (empty($elements) || ($elements[0] != 'at')) {
1277                 $post = Post::selectFirstPost(['extid'], ['uri' => $uri]);
1278                 return bluesky_get_uri_class($post['extid'] ?? '');
1279         }
1280
1281         $class = new stdClass;
1282
1283         $class->cid = array_pop($elements);
1284         $class->uri = implode(':', $elements);
1285
1286         if ((substr_count($class->uri, '/') == 2) && (substr_count($class->cid, '/') == 2)) {
1287                 $class->uri .= ':' . $class->cid;
1288                 $class->cid = '';
1289         }
1290
1291         return $class;
1292 }
1293
1294 function bluesky_get_uri_parts(string $uri): ?stdClass
1295 {
1296         $class = bluesky_get_uri_class($uri);
1297         if (empty($class)) {
1298                 return null;
1299         }
1300
1301         $parts = explode('/', substr($class->uri, 5));
1302
1303         $class = new stdClass;
1304
1305         $class->repo       = $parts[0];
1306         $class->collection = $parts[1];
1307         $class->rkey       = $parts[2];
1308
1309         return $class;
1310 }
1311
1312 function bluesky_fetch_missing_post(string $uri, int $uid, int $causer, int $level, string $fallback = ''): string
1313 {
1314         $fetched_uri = bluesky_fetch_post($uri, $uid);
1315         if (!empty($fetched_uri)) {
1316                 return $fetched_uri;
1317         }
1318
1319         if (++$level > 100) {
1320                 Logger::info('Recursion level too deep', ['level' => $level, 'uid' => $uid, 'uri' => $uri, 'fallback' => $fallback]);
1321                 // When the level is too deep we will fallback to the parent uri.
1322                 // Allthough the threading won't be correct, we at least had stored all posts and won't try again
1323                 return $fallback;
1324         }
1325
1326         $class = bluesky_get_uri_class($uri);
1327         $fetch_uri = $class->uri;
1328
1329         Logger::debug('Fetch missing post', ['level' => $level, 'uid' => $uid, 'uri' => $uri]);
1330         $data = bluesky_xrpc_get($uid, 'app.bsky.feed.getPostThread', ['uri' => $fetch_uri]);
1331         if (empty($data)) {
1332                 Logger::info('Thread was not fetched', ['level' => $level, 'uid' => $uid, 'uri' => $uri, 'fallback' => $fallback]);
1333                 return $fallback;
1334         }
1335
1336         Logger::debug('Reply count', ['level' => $level, 'uid' => $uid, 'uri' => $uri]);
1337
1338         if ($causer != 0) {
1339                 $cdata = Contact::getPublicAndUserContactID($causer, $uid);
1340         } else {
1341                 $cdata = [];
1342         }
1343
1344         return bluesky_process_thread($data->thread, $uid, $cdata, $level);
1345 }
1346
1347 function bluesky_fetch_post(string $uri, int $uid): string
1348 {
1349         if (Post::exists(['uri' => $uri, 'uid' => [$uid, 0]])) {
1350                 Logger::debug('Post exists', ['uri' => $uri]);
1351                 return $uri;
1352         }
1353
1354         $reply = Post::selectFirst(['uri'], ['extid' => $uri, 'uid' => [$uid, 0]]);
1355         if (!empty($reply['uri'])) {
1356                 Logger::debug('Post with extid exists', ['uri' => $uri]);
1357                 return $reply['uri'];
1358         }
1359         return '';
1360 }
1361
1362 function bluesky_process_thread(stdClass $thread, int $uid, array $cdata, int $level): string
1363 {
1364         if (empty($thread->post)) {
1365                 Logger::info('Invalid post', ['post' => $thread]);
1366                 return '';
1367         }
1368         $uri = bluesky_get_uri($thread->post);
1369
1370         $fetched_uri = bluesky_fetch_post($uri, $uid);
1371         if (empty($fetched_uri)) {
1372                 Logger::debug('Process missing post', ['uri' => $uri]);
1373                 $item = bluesky_get_header($thread->post, $uri, $uid, $uid);
1374                 $item = bluesky_get_content($item, $thread->post->record, $uri, $uid, $level);
1375                 if (!empty($item)) {
1376                         $item['post-reason'] = Item::PR_FETCHED;
1377
1378                         if (!empty($cdata['public'])) {
1379                                 $item['causer-id']   = $cdata['public'];
1380                         }
1381
1382                         if (!empty($thread->post->embed)) {
1383                                 $item = bluesky_add_media($thread->post->embed, $item, $uid, $level);
1384                         }
1385                         $id = Item::insert($item);
1386                         if (!$id) {
1387                                 Logger::info('Item has not not been stored', ['uri' => $uri]);
1388                                 return '';
1389                         }
1390                         Logger::debug('Stored item', ['id' => $id, 'uri' => $uri]);
1391                 } else {
1392                         Logger::info('Post has not not been fetched', ['uri' => $uri]);
1393                         return '';
1394                 }
1395         } else {
1396                 Logger::debug('Post exists', ['uri' => $uri]);
1397                 $uri = $fetched_uri;
1398         }
1399
1400         foreach ($thread->replies ?? [] as $reply) {
1401                 $reply_uri = bluesky_process_thread($reply, $uid, $cdata, $level);
1402                 Logger::debug('Reply has been processed', ['uri' => $uri, 'reply' => $reply_uri]);
1403         }
1404
1405         return $uri;
1406 }
1407
1408 function bluesky_get_contact(stdClass $author, int $uid, int $fetch_uid): array
1409 {
1410         $condition = ['network' => Protocol::BLUESKY, 'uid' => 0, 'url' => $author->did];
1411         $contact = Contact::selectFirst(['id', 'updated'], $condition);
1412
1413         $update = empty($contact) || $contact['updated'] < DateTimeFormat::utc('now -24 hours');
1414
1415         $public_fields = $fields = bluesky_get_contact_fields($author, $fetch_uid, $update);
1416
1417         $public_fields['uid'] = 0;
1418         $public_fields['rel'] = Contact::NOTHING;
1419
1420         if (empty($contact)) {
1421                 $cid = Contact::insert($public_fields);
1422         } else {
1423                 $cid = $contact['id'];
1424                 Contact::update($public_fields, ['id' => $cid], true);
1425         }
1426
1427         if ($uid != 0) {
1428                 $condition = ['network' => Protocol::BLUESKY, 'uid' => $uid, 'url' => $author->did];
1429
1430                 $contact = Contact::selectFirst(['id', 'rel', 'uid'], $condition);
1431                 if (!isset($fields['rel']) && isset($contact['rel'])) {
1432                         $fields['rel'] = $contact['rel'];
1433                 } elseif (!isset($fields['rel'])) {
1434                         $fields['rel'] = Contact::NOTHING;
1435                 }
1436         }
1437
1438         if (($uid != 0) && ($fields['rel'] != Contact::NOTHING)) {
1439                 if (empty($contact)) {
1440                         $cid = Contact::insert($fields);
1441                 } else {
1442                         $cid = $contact['id'];
1443                         Contact::update($fields, ['id' => $cid], true);
1444                 }
1445                 Logger::debug('Get user contact', ['id' => $cid, 'uid' => $uid, 'update' => $update]);
1446         } else {
1447                 Logger::debug('Get public contact', ['id' => $cid, 'uid' => $uid, 'update' => $update]);
1448         }
1449         if (!empty($author->avatar)) {
1450                 Contact::updateAvatar($cid, $author->avatar);
1451         }
1452
1453         return Contact::getById($cid);
1454 }
1455
1456 function bluesky_get_contact_fields(stdClass $author, int $uid, bool $update): array
1457 {
1458         $fields = [
1459                 'uid'      => $uid,
1460                 'network'  => Protocol::BLUESKY,
1461                 'priority' => 1,
1462                 'writable' => true,
1463                 'blocked'  => false,
1464                 'readonly' => false,
1465                 'pending'  => false,
1466                 'url'      => $author->did,
1467                 'nurl'     => $author->did,
1468                 'alias'    => BLUESKY_WEB . '/profile/' . $author->handle,
1469                 'name'     => $author->displayName ?? $author->handle,
1470                 'nick'     => $author->handle,
1471                 'addr'     => $author->handle,
1472         ];
1473
1474         if (!$update) {
1475                 Logger::debug('Got contact fields', ['uid' => $uid, 'url' => $fields['url']]);
1476                 return $fields;
1477         }
1478
1479         $fields['baseurl'] = bluesky_get_pds($author->did);
1480         if (!empty($fields['baseurl'])) {
1481                 GServer::check($fields['baseurl'], Protocol::BLUESKY);
1482                 $fields['gsid'] = GServer::getID($fields['baseurl'], true);
1483         }
1484
1485         $data = bluesky_xrpc_get($uid, 'app.bsky.actor.getProfile', ['actor' => $author->did]);
1486         if (empty($data)) {
1487                 Logger::debug('Error fetching contact fields', ['uid' => $uid, 'url' => $fields['url']]);
1488                 return $fields;
1489         }
1490
1491         $fields['updated'] = DateTimeFormat::utcNow(DateTimeFormat::MYSQL);
1492
1493         if (!empty($data->description)) {
1494                 $fields['about'] = HTML::toBBCode($data->description);
1495         }
1496
1497         if (!empty($data->banner)) {
1498                 $fields['header'] = $data->banner;
1499         }
1500
1501         if (!empty($data->viewer)) {
1502                 if (!empty($data->viewer->following) && !empty($data->viewer->followedBy)) {
1503                         $fields['rel'] = Contact::FRIEND;
1504                 } elseif (!empty($data->viewer->following) && empty($data->viewer->followedBy)) {
1505                         $fields['rel'] = Contact::SHARING;
1506                 } elseif (empty($data->viewer->following) && !empty($data->viewer->followedBy)) {
1507                         $fields['rel'] = Contact::FOLLOWER;
1508                 } else {
1509                         $fields['rel'] = Contact::NOTHING;
1510                 }
1511         }
1512
1513         Logger::debug('Got updated contact fields', ['uid' => $uid, 'url' => $fields['url']]);
1514         return $fields;
1515 }
1516
1517 function bluesky_get_feeds(int $uid): array
1518 {
1519         $type = '$type';
1520         $preferences = bluesky_get_preferences($uid);
1521         foreach ($preferences->preferences as $preference) {
1522                 if ($preference->$type == 'app.bsky.actor.defs#savedFeedsPref') {
1523                         return $preference->pinned ?? [];
1524                 }
1525         }
1526         return [];
1527 }
1528
1529 function bluesky_get_preferences(int $uid): stdClass
1530 {
1531         $cachekey = 'bluesky:preferences:' . $uid;
1532         $data = DI::cache()->get($cachekey);
1533         if (!is_null($data)) {
1534                 return $data;
1535         }
1536
1537         $data = bluesky_xrpc_get($uid, 'app.bsky.actor.getPreferences');
1538
1539         DI::cache()->set($cachekey, $data, Duration::HOUR);
1540         return $data;
1541 }
1542
1543 function bluesky_get_did(string $handle): string
1544 {
1545         $data = bluesky_get(BLUESKY_PDS . '/xrpc/com.atproto.identity.resolveHandle?handle=' . urlencode($handle));
1546         if (empty($data)) {
1547                 return '';
1548         }
1549         Logger::debug('Got DID', ['return' => $data]);
1550         return $data->did;
1551 }
1552
1553 function bluesky_get_user_pds(int $uid): string
1554 {
1555         $pds = DI::pConfig()->get($uid, 'bluesky', 'pds');
1556         if (!empty($pds)) {
1557                 return $pds;
1558         }
1559         $pds = bluesky_get_pds(DI::pConfig()->get($uid, 'bluesky', 'did'));
1560         DI::pConfig()->set($uid, 'bluesky', 'pds', $pds);
1561         return $pds;
1562 }
1563
1564 function bluesky_get_pds(string $did): ?string
1565 {
1566         $data = bluesky_get(BLUESKY_DIRECTORY . '/' . $did);
1567         if (empty($data) || empty($data->service)) {
1568                 return null;
1569         }
1570
1571         foreach ($data->service as $service) {
1572                 if (($service->id == '#atproto_pds') && ($service->type == 'AtprotoPersonalDataServer') && !empty($service->serviceEndpoint)) {
1573                         return $service->serviceEndpoint;
1574                 }
1575         }
1576
1577         return null;
1578 }
1579
1580 function bluesky_get_token(int $uid): string
1581 {
1582         $token   = DI::pConfig()->get($uid, 'bluesky', 'access_token');
1583         $created = DI::pConfig()->get($uid, 'bluesky', 'token_created');
1584         if (empty($token)) {
1585                 return '';
1586         }
1587
1588         if ($created + 300 < time()) {
1589                 return bluesky_refresh_token($uid);
1590         }
1591         return $token;
1592 }
1593
1594 function bluesky_refresh_token(int $uid): string
1595 {
1596         $token = DI::pConfig()->get($uid, 'bluesky', 'refresh_token');
1597
1598         $data = bluesky_post($uid, '/xrpc/com.atproto.server.refreshSession', '', ['Authorization' => ['Bearer ' . $token]]);
1599         if (empty($data)) {
1600                 return '';
1601         }
1602
1603         Logger::debug('Refreshed token', ['return' => $data]);
1604         DI::pConfig()->set($uid, 'bluesky', 'access_token', $data->accessJwt);
1605         DI::pConfig()->set($uid, 'bluesky', 'refresh_token', $data->refreshJwt);
1606         DI::pConfig()->set($uid, 'bluesky', 'token_created', time());
1607         return $data->accessJwt;
1608 }
1609
1610 function bluesky_create_token(int $uid, string $password): string
1611 {
1612         $did = DI::pConfig()->get($uid, 'bluesky', 'did');
1613
1614         $data = bluesky_post($uid, '/xrpc/com.atproto.server.createSession', json_encode(['identifier' => $did, 'password' => $password]), ['Content-type' => 'application/json']);
1615         if (empty($data)) {
1616                 return '';
1617         }
1618
1619         Logger::debug('Created token', ['return' => $data]);
1620         DI::pConfig()->set($uid, 'bluesky', 'access_token', $data->accessJwt);
1621         DI::pConfig()->set($uid, 'bluesky', 'refresh_token', $data->refreshJwt);
1622         DI::pConfig()->set($uid, 'bluesky', 'token_created', time());
1623         return $data->accessJwt;
1624 }
1625
1626 function bluesky_xrpc_post(int $uid, string $url, $parameters): ?stdClass
1627 {
1628         return bluesky_post($uid, '/xrpc/' . $url, json_encode($parameters),  ['Content-type' => 'application/json', 'Authorization' => ['Bearer ' . bluesky_get_token($uid)]]);
1629 }
1630
1631 function bluesky_post(int $uid, string $url, string $params, array $headers): ?stdClass
1632 {
1633         try {
1634                 $curlResult = DI::httpClient()->post(bluesky_get_user_pds($uid) . $url, $params, $headers);
1635         } catch (\Exception $e) {
1636                 Logger::notice('Exception on post', ['exception' => $e]);
1637                 return null;
1638         }
1639
1640         if (!$curlResult->isSuccess()) {
1641                 Logger::notice('API Error', ['error' => json_decode($curlResult->getBody()) ?: $curlResult->getBody()]);
1642                 return null;
1643         }
1644
1645         return json_decode($curlResult->getBody());
1646 }
1647
1648 function bluesky_xrpc_get(int $uid, string $url, array $parameters = []): ?stdClass
1649 {
1650         if (!empty($parameters)) {
1651                 $url .= '?' . http_build_query($parameters);
1652         }
1653
1654         return bluesky_get(bluesky_get_user_pds($uid) . '/xrpc/' . $url, HttpClientAccept::JSON, [HttpClientOptions::HEADERS => ['Authorization' => ['Bearer ' . bluesky_get_token($uid)]]]);
1655 }
1656
1657 function bluesky_get(string $url, string $accept_content = HttpClientAccept::DEFAULT, array $opts = []): ?stdClass
1658 {
1659         try {
1660                 $curlResult = DI::httpClient()->get($url, $accept_content, $opts);
1661         } catch (\Exception $e) {
1662                 Logger::notice('Exception on get', ['exception' => $e]);
1663                 return null;
1664         }
1665
1666         if (!$curlResult->isSuccess()) {
1667                 Logger::notice('API Error', ['error' => json_decode($curlResult->getBody()) ?: $curlResult->getBody()]);
1668                 return null;
1669         }
1670
1671         return json_decode($curlResult->getBody());
1672 }