src/Worker/OnePoll.php

   1 <?php
   2 /**
   3  * @file src/Worker/OnePoll.php
   4  */
   5 namespace Friendica\Worker;
   6
   7 use Friendica\Core\Config;
   8 use Friendica\Core\Logger;
   9 use Friendica\Core\PConfig;
  10 use Friendica\Core\Protocol;
  11 use Friendica\Database\DBA;
  12 use Friendica\Model\Contact;
  13 use Friendica\Model\Item;
  14 use Friendica\Model\User;
  15 use Friendica\Protocol\Activity;
  16 use Friendica\Protocol\ActivityPub;
  17 use Friendica\Protocol\Email;
  18 use Friendica\Protocol\PortableContact;
  19 use Friendica\Util\DateTimeFormat;
  20 use Friendica\Util\Network;
  21 use Friendica\Util\Strings;
  22 use Friendica\Util\XML;
  23
  24 class OnePoll
  25 {
  26         public static function execute($contact_id = 0, $command = '')
  27         {
  28                 Logger::log('Start for contact ' . $contact_id);
  29
  30                 $force = false;
  31
  32                 if ($command == "force") {
  33                         $force = true;
  34                 }
  35
  36                 if (!$contact_id) {
  37                         Logger::log('no contact');
  38                         return;
  39                 }
  40
  41                 Contact::updateFromProbe($contact_id, '', $force);
  42
  43                 $contact = DBA::selectFirst('contact', [], ['id' => $contact_id]);
  44                 if (!DBA::isResult($contact)) {
  45                         Logger::log('Contact not found or cannot be used.');
  46                         return;
  47                 }
  48
  49                 // Special treatment for wrongly detected local contacts
  50                 if (!$force && ($contact['network'] != Protocol::DFRN) && Contact::isLocalById($contact_id)) {
  51                         Contact::updateFromProbe($contact_id, Protocol::DFRN, true);
  52                         $contact = DBA::selectFirst('contact', [], ['id' => $contact_id]);
  53                 }
  54
  55                 if (($contact['network'] == Protocol::DFRN) && !Contact::isLegacyDFRNContact($contact)) {
  56                         $protocol = Protocol::ACTIVITYPUB;
  57                 } else {
  58                         $protocol = $contact['network'];
  59                 }
  60
  61                 $importer_uid = $contact['uid'];
  62
  63                 $updated = DateTimeFormat::utcNow();
  64
  65                 if ($importer_uid == 0) {
  66                         Logger::log('Ignore public contacts');
  67
  68                         // set the last-update so we don't keep polling
  69                         DBA::update('contact', ['last-update' => $updated], ['id' => $contact['id']]);
  70                         return;
  71                 }
  72
  73                 // Possibly switch the remote contact to AP
  74                 if ($protocol === Protocol::OSTATUS) {
  75                         ActivityPub\Receiver::switchContact($contact['id'], $importer_uid, $contact['url']);
  76                         $contact = DBA::selectFirst('contact', [], ['id' => $contact_id]);
  77                 }
  78
  79                 // load current friends if possible.
  80                 if (!empty($contact['poco']) && ($contact['success_update'] > $contact['failure_update'])) {
  81                         if (!DBA::exists('glink', ["`cid` = ? AND updated > UTC_TIMESTAMP() - INTERVAL 1 DAY", $contact['id']])) {
  82                                 PortableContact::loadWorker($contact['id'], $importer_uid, 0, $contact['poco']);
  83                         }
  84                 }
  85
  86                 // Don't poll if polling is deactivated (But we poll feeds and mails anyway)
  87                 if (!in_array($protocol, [Protocol::FEED, Protocol::MAIL]) && Config::get('system', 'disable_polling')) {
  88                         Logger::log('Polling is disabled');
  89
  90                         // set the last-update so we don't keep polling
  91                         DBA::update('contact', ['last-update' => $updated], ['id' => $contact['id']]);
  92                         return;
  93                 }
  94
  95                 // We don't poll AP contacts by now
  96                 if ($protocol === Protocol::ACTIVITYPUB) {
  97                         Logger::log("Don't poll AP contact");
  98
  99                         // set the last-update so we don't keep polling
 100                         DBA::update('contact', ['last-update' => $updated], ['id' => $contact['id']]);
 101                         return;
 102                 }
 103
 104                 $importer = User::getOwnerDataById($importer_uid);
 105
 106                 if (empty($importer)) {
 107                         Logger::log('No self contact for user '.$importer_uid);
 108
 109                         // set the last-update so we don't keep polling
 110                         DBA::update('contact', ['last-update' => $updated], ['id' => $contact['id']]);
 111                         return;
 112                 }
 113
 114                 $url = '';
 115                 $xml = false;
 116
 117                 if ($contact['subhub']) {
 118                         $poll_interval = Config::get('system', 'pushpoll_frequency', 3);
 119                         $contact['priority'] = intval($poll_interval);
 120                         $hub_update = false;
 121
 122                         if (DateTimeFormat::utcNow() > DateTimeFormat::utc($contact['last-update'] . " + 1 day")) {
 123                                 $hub_update = true;
 124                         }
 125                 } else {
 126                         $hub_update = false;
 127                 }
 128
 129                 Logger::log("poll: ({$protocol}-{$contact['id']}) IMPORTER: {$importer['name']}, CONTACT: {$contact['name']}");
 130
 131                 $xml = '';
 132
 133                 if ($protocol === Protocol::DFRN) {
 134                         $xml = self::pollDFRN($contact, $updated);
 135                 } elseif (($protocol === Protocol::OSTATUS)
 136                         || ($protocol === Protocol::DIASPORA)
 137                         || ($protocol === Protocol::FEED)) {
 138                         $xml = self::pollFeed($contact, $protocol, $updated);
 139                 } elseif ($protocol === Protocol::MAIL) {
 140                         self::pollMail($contact, $importer_uid, $updated);
 141                 }
 142
 143                 if (!empty($xml)) {
 144                         Logger::log('received xml : ' . $xml, Logger::DATA);
 145                         if (!strstr($xml, '<')) {
 146                                 Logger::log('post_handshake: response from ' . $url . ' did not contain XML.');
 147
 148                                 $fields = ['last-update' => $updated, 'failure_update' => $updated];
 149                                 self::updateContact($contact, $fields);
 150                                 Contact::markForArchival($contact);
 151                                 return;
 152                         }
 153
 154
 155                         Logger::log("Consume feed of contact ".$contact['id']);
 156
 157                         consume_feed($xml, $importer, $contact, $hub);
 158
 159                         // do it a second time for DFRN so that any children find their parents.
 160                         if ($protocol === Protocol::DFRN) {
 161                                 consume_feed($xml, $importer, $contact, $hub);
 162                         }
 163
 164                         $hubmode = 'subscribe';
 165                         if ($protocol === Protocol::DFRN || $contact['blocked']) {
 166                                 $hubmode = 'unsubscribe';
 167                         }
 168
 169                         if (($protocol === Protocol::OSTATUS ||  $protocol == Protocol::FEED) && (! $contact['hub-verify'])) {
 170                                 $hub_update = true;
 171                         }
 172
 173                         if ($force) {
 174                                 $hub_update = true;
 175                         }
 176
 177                         Logger::log("Contact ".$contact['id']." returned hub: ".$hub." Network: ".$protocol." Relation: ".$contact['rel']." Update: ".$hub_update);
 178
 179                         if (strlen($hub) && $hub_update && (($contact['rel'] != Contact::FOLLOWER) || $protocol == Protocol::FEED)) {
 180                                 Logger::log('hub ' . $hubmode . ' : ' . $hub . ' contact name : ' . $contact['name'] . ' local user : ' . $importer['name']);
 181                                 $hubs = explode(',', $hub);
 182
 183                                 if (count($hubs)) {
 184                                         foreach ($hubs as $h) {
 185                                                 $h = trim($h);
 186
 187                                                 if (!strlen($h)) {
 188                                                         continue;
 189                                                 }
 190
 191                                                 subscribe_to_hub($h, $importer, $contact, $hubmode);
 192                                         }
 193                                 }
 194                         }
 195
 196                         self::updateContact($contact, ['last-update' => $updated, 'success_update' => $updated]);
 197                         Contact::unmarkForArchival($contact);
 198                 } elseif (in_array($contact["network"], [Protocol::DFRN, Protocol::DIASPORA, Protocol::OSTATUS, Protocol::FEED])) {
 199                         self::updateContact($contact, ['last-update' => $updated, 'failure_update' => $updated]);
 200                         Contact::markForArchival($contact);
 201                 } else {
 202                         self::updateContact($contact, ['last-update' => $updated]);
 203                 }
 204
 205                 Logger::log('End');
 206                 return;
 207         }
 208
 209         private static function RemoveReply($subject)
 210         {
 211                 while (in_array(strtolower(substr($subject, 0, 3)), ["re:", "aw:"])) {
 212                         $subject = trim(substr($subject, 4));
 213                 }
 214
 215                 return $subject;
 216         }
 217
 218         /**
 219          * @brief Updates a personal contact entry and the public contact entry
 220          *
 221          * @param array $contact The personal contact entry
 222          * @param array $fields  The fields that are updated
 223          * @throws \Exception
 224          */
 225         private static function updateContact(array $contact, array $fields)
 226         {
 227                 DBA::update('contact', $fields, ['id' => $contact['id']]);
 228                 DBA::update('contact', $fields, ['uid' => 0, 'nurl' => $contact['nurl']]);
 229         }
 230
 231         /**
 232          * @brief Poll DFRN contacts
 233          *
 234          * @param  array  $contact The personal contact entry
 235          * @param  string $updated The updated date
 236          * @return string polled XML
 237          * @throws \Exception
 238          */
 239         private static function pollDFRN(array $contact, $updated)
 240         {
 241                 $idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
 242                 if (intval($contact['duplex']) && $contact['dfrn-id']) {
 243                         $idtosend = '0:' . $orig_id;
 244                 }
 245                 if (intval($contact['duplex']) && $contact['issued-id']) {
 246                         $idtosend = '1:' . $orig_id;
 247                 }
 248
 249                 // they have permission to write to us. We already filtered this in the contact query.
 250                 $perm = 'rw';
 251
 252                 // But this may be our first communication, so set the writable flag if it isn't set already.
 253                 if (!intval($contact['writable'])) {
 254                         $fields = ['writable' => true];
 255                         DBA::update('contact', $fields, ['id' => $contact['id']]);
 256                 }
 257
 258                 $last_update = (($contact['last-update'] <= DBA::NULL_DATETIME)
 259                         ? DateTimeFormat::utc('now - 7 days', DateTimeFormat::ATOM)
 260                         : DateTimeFormat::utc($contact['last-update'], DateTimeFormat::ATOM)
 261                 );
 262
 263                 $url = $contact['poll'] . '?dfrn_id=' . $idtosend
 264                         . '&dfrn_version=' . DFRN_PROTOCOL_VERSION
 265                         . '&type=data&last_update=' . $last_update
 266                         . '&perm=' . $perm;
 267
 268                 $curlResult = Network::curl($url);
 269
 270                 if (!$curlResult->isSuccess() && ($curlResult->getErrorNumber() == CURLE_OPERATION_TIMEDOUT)) {
 271                         // set the last-update so we don't keep polling
 272                         self::updateContact($contact, ['last-update' => $updated]);
 273                         Contact::markForArchival($contact);
 274                         Logger::log('Contact archived');
 275                         return false;
 276                 }
 277
 278                 $handshake_xml = $curlResult->getBody();
 279                 $html_code = $curlResult->getReturnCode();
 280
 281                 Logger::log('handshake with url ' . $url . ' returns xml: ' . $handshake_xml, Logger::DATA);
 282
 283                 if (!strlen($handshake_xml) || ($html_code >= 400) || !$html_code) {
 284                         // dead connection - might be a transient event, or this might
 285                         // mean the software was uninstalled or the domain expired.
 286                         // Will keep trying for one month.
 287                         Logger::log("$url appears to be dead - marking for death ");
 288
 289                         // set the last-update so we don't keep polling
 290                         $fields = ['last-update' => $updated, 'failure_update' => $updated];
 291                         self::updateContact($contact, $fields);
 292                         Contact::markForArchival($contact);
 293                         return false;
 294                 }
 295
 296                 if (!strstr($handshake_xml, '<')) {
 297                         Logger::log('response from ' . $url . ' did not contain XML.');
 298
 299                         $fields = ['last-update' => $updated, 'failure_update' => $updated];
 300                         self::updateContact($contact, $fields);
 301                         Contact::markForArchival($contact);
 302                         return false;
 303                 }
 304
 305                 $res = XML::parseString($handshake_xml);
 306
 307                 if (!is_object($res)) {
 308                         Logger::info('Unparseable response', ['url' => $url]);
 309
 310                         $fields = ['last-update' => $updated, 'failure_update' => $updated];
 311                         self::updateContact($contact, $fields);
 312                         Contact::markForArchival($contact);
 313                         return false;
 314                 }
 315
 316                 if (intval($res->status) == 1) {
 317                         // we may not be friends anymore. Will keep trying for one month.
 318                         Logger::log("$url replied status 1 - marking for death ");
 319
 320                         // set the last-update so we don't keep polling
 321                         $fields = ['last-update' => $updated, 'failure_update' => $updated];
 322                         self::updateContact($contact, $fields);
 323                         Contact::markForArchival($contact);
 324                 } elseif ($contact['term-date'] > DBA::NULL_DATETIME) {
 325                         Contact::unmarkForArchival($contact);
 326                 }
 327
 328                 if ((intval($res->status) != 0) || !strlen($res->challenge) || !strlen($res->dfrn_id)) {
 329                         // set the last-update so we don't keep polling
 330                         DBA::update('contact', ['last-update' => $updated], ['id' => $contact['id']]);
 331                         Logger::log('Contact status is ' . $res->status);
 332                         return false;
 333                 }
 334
 335                 if (((float)$res->dfrn_version > 2.21) && ($contact['poco'] == '')) {
 336                         $fields = ['poco' => str_replace('/profile/', '/poco/', $contact['url'])];
 337                         DBA::update('contact', $fields, ['id' => $contact['id']]);
 338                 }
 339
 340                 $postvars = [];
 341
 342                 $sent_dfrn_id = hex2bin((string) $res->dfrn_id);
 343                 $challenge    = hex2bin((string) $res->challenge);
 344
 345                 $final_dfrn_id = '';
 346
 347                 if ($contact['duplex'] && strlen($contact['prvkey'])) {
 348                         openssl_private_decrypt($sent_dfrn_id, $final_dfrn_id, $contact['prvkey']);
 349                         openssl_private_decrypt($challenge, $postvars['challenge'], $contact['prvkey']);
 350                 } else {
 351                         openssl_public_decrypt($sent_dfrn_id, $final_dfrn_id, $contact['pubkey']);
 352                         openssl_public_decrypt($challenge, $postvars['challenge'], $contact['pubkey']);
 353                 }
 354
 355                 $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
 356
 357                 if (strpos($final_dfrn_id, ':') == 1) {
 358                         $final_dfrn_id = substr($final_dfrn_id, 2);
 359                 }
 360
 361                 // There are issues with the legacy DFRN transport layer.
 362                 // Since we mostly don't use it anyway, we won't dig into it deeper, but simply ignore it.
 363                 if (empty($final_dfrn_id) || empty($orig_id)) {
 364                         Logger::log('Contact has got no ID - quitting');
 365                         return false;
 366                 }
 367
 368                 if ($final_dfrn_id != $orig_id) {
 369                         // did not decode properly - cannot trust this site
 370                         Logger::log('ID did not decode: ' . $contact['id'] . ' orig: ' . $orig_id . ' final: ' . $final_dfrn_id);
 371
 372                         // set the last-update so we don't keep polling
 373                         DBA::update('contact', ['last-update' => $updated], ['id' => $contact['id']]);
 374                         Contact::markForArchival($contact);
 375                         return false;
 376                 }
 377
 378                 $postvars['dfrn_id'] = $idtosend;
 379                 $postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
 380                 $postvars['perm'] = 'rw';
 381
 382                 return Network::post($contact['poll'], $postvars)->getBody();
 383         }
 384
 385         /**
 386          * @brief Poll Feed/OStatus contacts
 387          *
 388          * @param  array  $contact The personal contact entry
 389          * @param  string $protocol The used protocol of the contact
 390          * @param  string $updated The updated date
 391          * @return string polled XML
 392          * @throws \Exception
 393          */
 394         private static function pollFeed(array $contact, $protocol, $updated)
 395         {
 396                 // Upgrading DB fields from an older Friendica version
 397                 // Will only do this once per notify-enabled OStatus contact
 398                 // or if relationship changes
 399
 400                 $stat_writeable = ((($contact['notify']) && ($contact['rel'] == Contact::FOLLOWER || $contact['rel'] == Contact::FRIEND)) ? 1 : 0);
 401
 402                 // Contacts from OStatus are always writable
 403                 if ($protocol === Protocol::OSTATUS) {
 404                         $stat_writeable = 1;
 405                 }
 406
 407                 if ($stat_writeable != $contact['writable']) {
 408                         $fields = ['writable' => $stat_writeable];
 409                         DBA::update('contact', $fields, ['id' => $contact['id']]);
 410                 }
 411
 412                 // Are we allowed to import from this person?
 413                 if ($contact['rel'] == Contact::FOLLOWER || $contact['blocked']) {
 414                         // set the last-update so we don't keep polling
 415                         DBA::update('contact', ['last-update' => $updated], ['id' => $contact['id']]);
 416                         Logger::log('Contact is blocked or only a follower');
 417                         return false;
 418                 }
 419
 420                 $cookiejar = tempnam(get_temppath(), 'cookiejar-onepoll-');
 421                 $curlResult = Network::curl($contact['poll'], false, ['cookiejar' => $cookiejar]);
 422                 unlink($cookiejar);
 423
 424                 if ($curlResult->isTimeout()) {
 425                         // set the last-update so we don't keep polling
 426                         self::updateContact($contact, ['last-update' => $updated]);
 427                         Contact::markForArchival($contact);
 428                         Logger::log('Contact archived');
 429                         return false;
 430                 }
 431
 432                 return $curlResult->getBody();
 433         }
 434
 435         /**
 436          * @brief Poll Mail contacts
 437          *
 438          * @param  array   $contact      The personal contact entry
 439          * @param  integer $importer_uid The UID of the importer
 440          * @param  string  $updated      The updated date
 441          * @throws \Exception
 442          */
 443         private static function pollMail(array $contact, $importer_uid, $updated)
 444         {
 445                 Logger::log("Mail: Fetching for ".$contact['addr'], Logger::DEBUG);
 446
 447                 $mail_disabled = ((function_exists('imap_open') && !Config::get('system', 'imap_disabled')) ? 0 : 1);
 448                 if ($mail_disabled) {
 449                         // set the last-update so we don't keep polling
 450                         self::updateContact($contact, ['last-update' => $updated]);
 451                         Contact::markForArchival($contact);
 452                         Logger::log('Contact archived');
 453                         return;
 454                 }
 455
 456                 Logger::log("Mail: Enabled", Logger::DEBUG);
 457
 458                 $mbox = null;
 459                 $user = DBA::selectFirst('user', ['prvkey'], ['uid' => $importer_uid]);
 460
 461                 $condition = ["`server` != '' AND `uid` = ?", $importer_uid];
 462                 $mailconf = DBA::selectFirst('mailacct', [], $condition);
 463                 if (DBA::isResult($user) && DBA::isResult($mailconf)) {
 464                         $mailbox = Email::constructMailboxName($mailconf);
 465                         $password = '';
 466                         openssl_private_decrypt(hex2bin($mailconf['pass']), $password, $user['prvkey']);
 467                         $mbox = Email::connect($mailbox, $mailconf['user'], $password);
 468                         unset($password);
 469                         Logger::log("Mail: Connect to " . $mailconf['user']);
 470                         if ($mbox) {
 471                                 $fields = ['last_check' => $updated];
 472                                 DBA::update('mailacct', $fields, ['id' => $mailconf['id']]);
 473                                 Logger::log("Mail: Connected to " . $mailconf['user']);
 474                         } else {
 475                                 Logger::log("Mail: Connection error ".$mailconf['user']." ".print_r(imap_errors(), true));
 476                         }
 477                 }
 478
 479                 if (!$mbox) {
 480                         return;
 481                 }
 482
 483                 $msgs = Email::poll($mbox, $contact['addr']);
 484
 485                 if (count($msgs)) {
 486                         Logger::log("Mail: Parsing ".count($msgs)." mails from ".$contact['addr']." for ".$mailconf['user'], Logger::DEBUG);
 487
 488                         $metas = Email::messageMeta($mbox, implode(',', $msgs));
 489
 490                         if (count($metas) != count($msgs)) {
 491                                 Logger::log("for " . $mailconf['user'] . " there are ". count($msgs) . " messages but received " . count($metas) . " metas", Logger::DEBUG);
 492                         } else {
 493                                 $msgs = array_combine($msgs, $metas);
 494
 495                                 foreach ($msgs as $msg_uid => $meta) {
 496                                         Logger::log("Mail: Parsing mail ".$msg_uid, Logger::DATA);
 497
 498                                         $datarray = [];
 499                                         $datarray['uid'] = $importer_uid;
 500                                         $datarray['contact-id'] = $contact['id'];
 501                                         $datarray['verb'] = Activity::POST;
 502                                         $datarray['object-type'] = Activity\ObjectType::NOTE;
 503                                         $datarray['network'] = Protocol::MAIL;
 504                                         // $meta = Email::messageMeta($mbox, $msg_uid);
 505
 506                                         $datarray['uri'] = Email::msgid2iri(trim($meta->message_id, '<>'));
 507
 508                                         // Have we seen it before?
 509                                         $fields = ['deleted', 'id'];
 510                                         $condition = ['uid' => $importer_uid, 'uri' => $datarray['uri']];
 511                                         $item = Item::selectFirst($fields, $condition);
 512                                         if (DBA::isResult($item)) {
 513                                                 Logger::log("Mail: Seen before ".$msg_uid." for ".$mailconf['user']." UID: ".$importer_uid." URI: ".$datarray['uri'],Logger::DEBUG);
 514
 515                                                 // Only delete when mails aren't automatically moved or deleted
 516                                                 if (($mailconf['action'] != 1) && ($mailconf['action'] != 3))
 517                                                         if ($meta->deleted && ! $item['deleted']) {
 518                                                                 $fields = ['deleted' => true, 'changed' => $updated];
 519                                                                 Item::update($fields, ['id' => $item['id']]);
 520                                                         }
 521
 522                                                 switch ($mailconf['action']) {
 523                                                         case 0:
 524                                                                 Logger::log("Mail: Seen before ".$msg_uid." for ".$mailconf['user'].". Doing nothing.", Logger::DEBUG);
 525                                                                 break;
 526                                                         case 1:
 527                                                                 Logger::log("Mail: Deleting ".$msg_uid." for ".$mailconf['user']);
 528                                                                 imap_delete($mbox, $msg_uid, FT_UID);
 529                                                                 break;
 530                                                         case 2:
 531                                                                 Logger::log("Mail: Mark as seen ".$msg_uid." for ".$mailconf['user']);
 532                                                                 imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
 533                                                                 break;
 534                                                         case 3:
 535                                                                 Logger::log("Mail: Moving ".$msg_uid." to ".$mailconf['movetofolder']." for ".$mailconf['user']);
 536                                                                 imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
 537                                                                 if ($mailconf['movetofolder'] != "") {
 538                                                                         imap_mail_move($mbox, $msg_uid, $mailconf['movetofolder'], FT_UID);
 539                                                                 }
 540                                                                 break;
 541                                                 }
 542                                                 continue;
 543                                         }
 544
 545                                         // look for a 'references' or an 'in-reply-to' header and try to match with a parent item we have locally.
 546                                         $raw_refs = (property_exists($meta, 'references') ? str_replace("\t", '', $meta->references) : '');
 547                                         if (!trim($raw_refs)) {
 548                                                 $raw_refs = (property_exists($meta, 'in_reply_to') ? str_replace("\t", '', $meta->in_reply_to) : '');
 549                                         }
 550                                         $raw_refs = trim($raw_refs);  // Don't allow a blank reference in $refs_arr
 551
 552                                         if ($raw_refs) {
 553                                                 $refs_arr = explode(' ', $raw_refs);
 554                                                 if (count($refs_arr)) {
 555                                                         for ($x = 0; $x < count($refs_arr); $x ++) {
 556                                                                 $refs_arr[$x] = Email::msgid2iri(str_replace(['<', '>', ' '],['', '', ''], $refs_arr[$x]));
 557                                                         }
 558                                                 }
 559                                                 $condition = ['uri' => $refs_arr, 'uid' => $importer_uid];
 560                                                 $parent = Item::selectFirst(['parent-uri'], $condition);
 561                                                 if (DBA::isResult($parent)) {
 562                                                         $datarray['parent-uri'] = $parent['parent-uri'];  // Set the parent as the top-level item
 563                                                 }
 564                                         }
 565
 566                                         // Decoding the header
 567                                         $subject = imap_mime_header_decode($meta->subject ?? '');
 568                                         $datarray['title'] = "";
 569                                         foreach ($subject as $subpart) {
 570                                                 if ($subpart->charset != "default") {
 571                                                         $datarray['title'] .= iconv($subpart->charset, 'UTF-8//IGNORE', $subpart->text);
 572                                                 } else {
 573                                                         $datarray['title'] .= $subpart->text;
 574                                                 }
 575                                         }
 576                                         $datarray['title'] = Strings::escapeTags(trim($datarray['title']));
 577
 578                                         //$datarray['title'] = Strings::escapeTags(trim($meta->subject));
 579                                         $datarray['created'] = DateTimeFormat::utc($meta->date);
 580
 581                                         // Is it a reply?
 582                                         $reply = ((substr(strtolower($datarray['title']), 0, 3) == "re:") ||
 583                                                 (substr(strtolower($datarray['title']), 0, 3) == "re-") ||
 584                                                 ($raw_refs != ""));
 585
 586                                         // Remove Reply-signs in the subject
 587                                         $datarray['title'] = self::RemoveReply($datarray['title']);
 588
 589                                         // If it seems to be a reply but a header couldn't be found take the last message with matching subject
 590                                         if (empty($datarray['parent-uri']) && $reply) {
 591                                                 $condition = ['title' => $datarray['title'], 'uid' => $importer_uid, 'network' => Protocol::MAIL];
 592                                                 $params = ['order' => ['created' => true]];
 593                                                 $parent = Item::selectFirst(['parent-uri'], $condition, $params);
 594                                                 if (DBA::isResult($parent)) {
 595                                                         $datarray['parent-uri'] = $parent['parent-uri'];
 596                                                 }
 597                                         }
 598
 599                                         if (empty($datarray['parent-uri'])) {
 600                                                 $datarray['parent-uri'] = $datarray['uri'];
 601                                         }
 602
 603                                         $headers = imap_headerinfo($mbox, $meta->msgno);
 604
 605                                         $object = [];
 606
 607                                         if (!empty($headers->from)) {
 608                                                 $object['from'] = $headers->from;
 609                                         }
 610
 611                                         if (!empty($headers->to)) {
 612                                                 $object['to'] = $headers->to;
 613                                         }
 614
 615                                         if (!empty($headers->reply_to)) {
 616                                                 $object['reply_to'] = $headers->reply_to;
 617                                         }
 618
 619                                         if (!empty($headers->sender)) {
 620                                                 $object['sender'] = $headers->sender;
 621                                         }
 622
 623                                         if (!empty($object)) {
 624                                                 $datarray['object'] = json_encode($object);
 625                                         }
 626
 627                                         $fromname = $frommail = $headers->from[0]->mailbox . '@' . $headers->from[0]->host;
 628                                         if (!empty($headers->from[0]->personal)) {
 629                                                 $fromname = $headers->from[0]->personal;
 630                                         }
 631
 632                                         $datarray['author-name'] = $fromname;
 633                                         $datarray['author-link'] = "mailto:".$frommail;
 634                                         $datarray['author-avatar'] = $contact['photo'];
 635
 636                                         $datarray['owner-name'] = $contact['name'];
 637                                         $datarray['owner-link'] = "mailto:".$contact['addr'];
 638                                         $datarray['owner-avatar'] = $contact['photo'];
 639
 640                                         if ($datarray['parent-uri'] === $datarray['uri']) {
 641                                                 $datarray['private'] = 1;
 642                                         }
 643
 644                                         if (!PConfig::get($importer_uid, 'system', 'allow_public_email_replies')) {
 645                                                 $datarray['private'] = 1;
 646                                                 $datarray['allow_cid'] = '<' . $contact['id'] . '>';
 647                                         }
 648
 649                                         $datarray = Email::getMessage($mbox, $msg_uid, $reply, $datarray);
 650                                         if (empty($datarray['body'])) {
 651                                                 Logger::log("Mail: can't fetch msg ".$msg_uid." for ".$mailconf['user']);
 652                                                 continue;
 653                                         }
 654
 655                                         Logger::log("Mail: Importing ".$msg_uid." for ".$mailconf['user']);
 656
 657                                         Item::insert($datarray);
 658
 659                                         switch ($mailconf['action']) {
 660                                                 case 0:
 661                                                         Logger::log("Mail: Seen before ".$msg_uid." for ".$mailconf['user'].". Doing nothing.", Logger::DEBUG);
 662                                                         break;
 663                                                 case 1:
 664                                                         Logger::log("Mail: Deleting ".$msg_uid." for ".$mailconf['user']);
 665                                                         imap_delete($mbox, $msg_uid, FT_UID);
 666                                                         break;
 667                                                 case 2:
 668                                                         Logger::log("Mail: Mark as seen ".$msg_uid." for ".$mailconf['user']);
 669                                                         imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
 670                                                         break;
 671                                                 case 3:
 672                                                         Logger::log("Mail: Moving ".$msg_uid." to ".$mailconf['movetofolder']." for ".$mailconf['user']);
 673                                                         imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
 674                                                         if ($mailconf['movetofolder'] != "") {
 675                                                                 imap_mail_move($mbox, $msg_uid, $mailconf['movetofolder'], FT_UID);
 676                                                         }
 677                                                         break;
 678                                         }
 679                                 }
 680                         }
 681                 } else {
 682                         Logger::log("Mail: no mails for ".$mailconf['user']);
 683                 }
 684
 685                 Logger::log("Mail: closing connection for ".$mailconf['user']);
 686                 imap_close($mbox);
 687         }
 688 }