src/Worker/OnePoll.php

   1 <?php
   2 /**
   3  * @file src/Worker/OnePoll.php
   4  */
   5 namespace Friendica\Worker;
   6
   7 use Friendica\BaseObject;
   8 use Friendica\Content\Text\BBCode;
   9 use Friendica\Core\Config;
  10 use Friendica\Core\Logger;
  11 use Friendica\Core\PConfig;
  12 use Friendica\Core\Protocol;
  13 use Friendica\Database\DBA;
  14 use Friendica\Model\APContact;
  15 use Friendica\Model\Contact;
  16 use Friendica\Model\Item;
  17 use Friendica\Protocol\ActivityPub;
  18 use Friendica\Protocol\Email;
  19 use Friendica\Protocol\PortableContact;
  20 use Friendica\Util\DateTimeFormat;
  21 use Friendica\Util\Network;
  22 use Friendica\Util\Strings;
  23 use Friendica\Util\XML;
  24
  25 class OnePoll
  26 {
  27         public static function execute($contact_id = 0, $command = '')
  28         {
  29                 $a = BaseObject::getApp();
  30
  31                 Logger::log('Start for contact ' . $contact_id);
  32
  33                 $manual_id  = 0;
  34                 $generation = 0;
  35                 $hub_update = false;
  36                 $force      = false;
  37                 $restart    = false;
  38
  39                 if ($command == "force") {
  40                         $force = true;
  41                 }
  42
  43                 if (!$contact_id) {
  44                         Logger::log('no contact');
  45                         return;
  46                 }
  47
  48                 $d = DateTimeFormat::utcNow();
  49
  50                 $contact = DBA::selectFirst('contact', [], ['id' => $contact_id]);
  51                 if (!DBA::isResult($contact)) {
  52                         Logger::log('Contact not found or cannot be used.');
  53                         return;
  54                 }
  55
  56                 $importer_uid = $contact['uid'];
  57
  58                 // Possibly switch the remote contact to AP
  59                 if ($contact['network'] === Protocol::OSTATUS) {
  60                         ActivityPub\Receiver::switchContact($contact['id'], $importer_uid, $contact['url']);
  61                         $contact = DBA::selectFirst('contact', [], ['id' => $contact_id]);
  62                 }
  63
  64                 // These three networks can be able to speak AP, so we are trying to fetch AP profile data here
  65                 if (in_array($contact['network'], [Protocol::ACTIVITYPUB, Protocol::DIASPORA, Protocol::DFRN])) {
  66                         $apcontact = APContact::getByURL($contact['url'], true);
  67
  68                         $updated = DateTimeFormat::utcNow();
  69                         if (($contact['network'] === Protocol::ACTIVITYPUB) && empty($apcontact)) {
  70                                 self::updateContact($contact, ['last-update' => $updated, 'failure_update' => $updated]);
  71                                 Contact::markForArchival($contact);
  72                                 Logger::log('Contact archived');
  73                                 return;
  74                         } elseif (!empty($apcontact)) {
  75                                 $fields = ['last-update' => $updated, 'success_update' => $updated];
  76                                 self::updateContact($contact, $fields);
  77                                 Contact::unmarkForArchival($contact);
  78                         }
  79                 }
  80
  81                 // Diaspora users, archived users and followers are only checked if they still exist.
  82                 if (($contact['network'] != Protocol::ACTIVITYPUB) && ($contact['archive'] || ($contact["network"] == Protocol::DIASPORA) || ($contact["rel"] == Contact::FOLLOWER))) {
  83                         $last_updated = PortableContact::lastUpdated($contact["url"], true);
  84                         $updated = DateTimeFormat::utcNow();
  85
  86                         if ($last_updated) {
  87                                 Logger::log('Contact '.$contact['id'].' had last update on '.$last_updated, Logger::DEBUG);
  88
  89                                 // The last public item can be older than the last item we got
  90                                 if ($last_updated < $contact['last-item']) {
  91                                         $last_updated = $contact['last-item'];
  92                                 }
  93
  94                                 $fields = ['last-item' => DateTimeFormat::utc($last_updated), 'last-update' => $updated, 'success_update' => $updated];
  95                                 self::updateContact($contact, $fields);
  96                                 Contact::unmarkForArchival($contact);
  97                         } else {
  98                                 self::updateContact($contact, ['last-update' => $updated, 'failure_update' => $updated]);
  99                                 Contact::markForArchival($contact);
 100                                 Logger::log('Contact archived');
 101                                 return;
 102                         }
 103                 }
 104
 105                 // Update the contact entry
 106                 if (in_array($contact['network'], [Protocol::ACTIVITYPUB, Protocol::OSTATUS, Protocol::DIASPORA, Protocol::DFRN])) {
 107                         $updated = DateTimeFormat::utcNow();
 108                         // Currently we can't check every AP implementation, so we don't do it at all
 109                         if (($contact['network'] != Protocol::ACTIVITYPUB) && !PortableContact::reachable($contact['url'])) {
 110                                 Logger::log("Skipping probably dead contact ".$contact['url']);
 111
 112                                 // set the last-update so we don't keep polling
 113                                 self::updateContact($contact, ['last-update' => $updated]);
 114                                 return;
 115                         }
 116
 117                         if (!Contact::updateFromProbe($contact["id"])) {
 118                                 // set the last-update so we don't keep polling
 119                                 self::updateContact($contact, ['last-update' => $updated]);
 120                                 Contact::markForArchival($contact);
 121                                 Logger::log('Contact archived');
 122                                 return;
 123                         } else {
 124                                 $fields = ['last-update' => $updated, 'success_update' => $updated];
 125                                 self::updateContact($contact, $fields);
 126                                 Contact::unmarkForArchival($contact);
 127                         }
 128                 }
 129
 130                 // load current friends if possible.
 131                 if (!empty($contact['poco']) && ($contact['success_update'] > $contact['failure_update'])) {
 132                         $r = q("SELECT count(*) AS total FROM glink
 133                                 WHERE `cid` = %d AND updated > UTC_TIMESTAMP() - INTERVAL 1 DAY",
 134                                 intval($contact['id'])
 135                         );
 136                         if (DBA::isResult($r)) {
 137                                 if (!$r[0]['total']) {
 138                                         PortableContact::loadWorker($contact['id'], $importer_uid, 0, $contact['poco']);
 139                                 }
 140                         }
 141                 }
 142
 143                 // We don't poll our followers
 144                 if ($contact["rel"] == Contact::FOLLOWER) {
 145                         Logger::log("Don't poll follower");
 146                         return;
 147                 }
 148
 149                 // Don't poll if polling is deactivated (But we poll feeds and mails anyway)
 150                 if (!in_array($contact['network'], [Protocol::FEED, Protocol::MAIL]) && Config::get('system', 'disable_polling')) {
 151                         Logger::log('Polling is disabled');
 152                         return;
 153                 }
 154
 155                 // We don't poll AP contacts by now
 156                 if ($contact['network'] === Protocol::ACTIVITYPUB) {
 157                         Logger::log("Don't poll AP contact");
 158                         return;
 159                 }
 160
 161                 if ($importer_uid == 0) {
 162                         Logger::log('Ignore public contacts');
 163
 164                         // set the last-update so we don't keep polling
 165                         DBA::update('contact', ['last-update' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
 166                         return;
 167                 }
 168
 169                 $r = q("SELECT `contact`.*, `user`.`page-flags` FROM `contact` INNER JOIN `user` on `contact`.`uid` = `user`.`uid` WHERE `user`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
 170                         intval($importer_uid)
 171                 );
 172
 173                 if (!DBA::isResult($r)) {
 174                         Logger::log('No self contact for user '.$importer_uid);
 175
 176                         // set the last-update so we don't keep polling
 177                         DBA::update('contact', ['last-update' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
 178                         return;
 179                 }
 180
 181                 $importer = $r[0];
 182                 $url = '';
 183                 $xml = false;
 184
 185                 if ($contact['subhub']) {
 186                         $poll_interval = Config::get('system', 'pushpoll_frequency', 3);
 187                         $contact['priority'] = intval($poll_interval);
 188                         $hub_update = false;
 189
 190                         if (DateTimeFormat::utcNow() > DateTimeFormat::utc($contact['last-update'] . " + 1 day")) {
 191                                 $hub_update = true;
 192                         }
 193                 } else {
 194                         $hub_update = false;
 195                 }
 196
 197                 $last_update = (($contact['last-update'] <= DBA::NULL_DATETIME)
 198                         ? DateTimeFormat::utc('now - 7 days', DateTimeFormat::ATOM)
 199                         : DateTimeFormat::utc($contact['last-update'], DateTimeFormat::ATOM)
 200                 );
 201
 202                 Logger::log("poll: ({$contact['network']}-{$contact['id']}) IMPORTER: {$importer['name']}, CONTACT: {$contact['name']}");
 203
 204                 if ($contact['network'] === Protocol::DFRN) {
 205                         $idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
 206                         if (intval($contact['duplex']) && $contact['dfrn-id']) {
 207                                 $idtosend = '0:' . $orig_id;
 208                         }
 209                         if (intval($contact['duplex']) && $contact['issued-id']) {
 210                                 $idtosend = '1:' . $orig_id;
 211                         }
 212
 213                         // they have permission to write to us. We already filtered this in the contact query.
 214                         $perm = 'rw';
 215
 216                         // But this may be our first communication, so set the writable flag if it isn't set already.
 217
 218                         if (!intval($contact['writable'])) {
 219                                 $fields = ['writable' => true];
 220                                 DBA::update('contact', $fields, ['id' => $contact['id']]);
 221                         }
 222
 223                         $url = $contact['poll'] . '?dfrn_id=' . $idtosend
 224                                 . '&dfrn_version=' . DFRN_PROTOCOL_VERSION
 225                                 . '&type=data&last_update=' . $last_update
 226                                 . '&perm=' . $perm;
 227
 228                         $curlResult = Network::curl($url);
 229
 230                         if (!$curlResult->isSuccess() && ($curlResult->getErrorNumber() == CURLE_OPERATION_TIMEDOUT)) {
 231                                 // set the last-update so we don't keep polling
 232                                 self::updateContact($contact, ['last-update' => DateTimeFormat::utcNow()]);
 233                                 Contact::markForArchival($contact);
 234                                 Logger::log('Contact archived');
 235                                 return;
 236                         }
 237
 238                         $handshake_xml = $curlResult->getBody();
 239                         $html_code = $curlResult->getReturnCode();
 240
 241                         Logger::log('handshake with url ' . $url . ' returns xml: ' . $handshake_xml, Logger::DATA);
 242
 243                         if (!strlen($handshake_xml) || ($html_code >= 400) || !$html_code) {
 244                                 // dead connection - might be a transient event, or this might
 245                                 // mean the software was uninstalled or the domain expired.
 246                                 // Will keep trying for one month.
 247                                 Logger::log("$url appears to be dead - marking for death ");
 248
 249                                 // set the last-update so we don't keep polling
 250                                 $fields = ['last-update' => DateTimeFormat::utcNow(), 'failure_update' => DateTimeFormat::utcNow()];
 251                                 self::updateContact($contact, $fields);
 252                                 Contact::markForArchival($contact);
 253                                 return;
 254                         }
 255
 256                         if (!strstr($handshake_xml, '<')) {
 257                                 Logger::log('response from ' . $url . ' did not contain XML.');
 258
 259                                 $fields = ['last-update' => DateTimeFormat::utcNow(), 'failure_update' => DateTimeFormat::utcNow()];
 260                                 self::updateContact($contact, $fields);
 261                                 Contact::markForArchival($contact);
 262                                 return;
 263                         }
 264
 265
 266                         $res = XML::parseString($handshake_xml);
 267
 268                         if (intval($res->status) == 1) {
 269                                 // we may not be friends anymore. Will keep trying for one month.
 270                                 Logger::log("$url replied status 1 - marking for death ");
 271
 272                                 // set the last-update so we don't keep polling
 273                                 $fields = ['last-update' => DateTimeFormat::utcNow(), 'failure_update' => DateTimeFormat::utcNow()];
 274                                 self::updateContact($contact, $fields);
 275                                 Contact::markForArchival($contact);
 276                         } elseif ($contact['term-date'] > DBA::NULL_DATETIME) {
 277                                 Contact::unmarkForArchival($contact);
 278                         }
 279
 280                         if ((intval($res->status) != 0) || !strlen($res->challenge) || !strlen($res->dfrn_id)) {
 281                                 // set the last-update so we don't keep polling
 282                                 DBA::update('contact', ['last-update' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
 283                                 Logger::log('Contact status is ' . $res->status);
 284                                 return;
 285                         }
 286
 287                         if (((float)$res->dfrn_version > 2.21) && ($contact['poco'] == '')) {
 288                                 $fields = ['poco' => str_replace('/profile/', '/poco/', $contact['url'])];
 289                                 DBA::update('contact', $fields, ['id' => $contact['id']]);
 290                         }
 291
 292                         $postvars = [];
 293
 294                         $sent_dfrn_id = hex2bin((string) $res->dfrn_id);
 295                         $challenge    = hex2bin((string) $res->challenge);
 296
 297                         $final_dfrn_id = '';
 298
 299                         if ($contact['duplex'] && strlen($contact['prvkey'])) {
 300                                 openssl_private_decrypt($sent_dfrn_id, $final_dfrn_id, $contact['prvkey']);
 301                                 openssl_private_decrypt($challenge, $postvars['challenge'], $contact['prvkey']);
 302                         } else {
 303                                 openssl_public_decrypt($sent_dfrn_id, $final_dfrn_id, $contact['pubkey']);
 304                                 openssl_public_decrypt($challenge, $postvars['challenge'], $contact['pubkey']);
 305                         }
 306
 307                         $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
 308
 309                         if (strpos($final_dfrn_id, ':') == 1) {
 310                                 $final_dfrn_id = substr($final_dfrn_id, 2);
 311                         }
 312
 313                         // There are issues with the legacy DFRN transport layer.
 314                         // Since we mostly don't use it anyway, we won't dig into it deeper, but simply ignore it.
 315                         if (empty($final_dfrn_id) || empty($orig_id)) {
 316                                 Logger::log('Contact has got no ID - quitting');
 317                                 return;
 318                         }
 319
 320                         if ($final_dfrn_id != $orig_id) {
 321                                 // did not decode properly - cannot trust this site
 322                                 Logger::log('ID did not decode: ' . $contact['id'] . ' orig: ' . $orig_id . ' final: ' . $final_dfrn_id);
 323
 324                                 // set the last-update so we don't keep polling
 325                                 DBA::update('contact', ['last-update' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
 326                                 Contact::markForArchival($contact);
 327                                 return;
 328                         }
 329
 330                         $postvars['dfrn_id'] = $idtosend;
 331                         $postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
 332                         $postvars['perm'] = 'rw';
 333
 334                         $xml = Network::post($contact['poll'], $postvars)->getBody();
 335
 336                 } elseif (($contact['network'] === Protocol::OSTATUS)
 337                         || ($contact['network'] === Protocol::DIASPORA)
 338                         || ($contact['network'] === Protocol::FEED)) {
 339
 340                         // Upgrading DB fields from an older Friendica version
 341                         // Will only do this once per notify-enabled OStatus contact
 342                         // or if relationship changes
 343
 344                         $stat_writeable = ((($contact['notify']) && ($contact['rel'] == Contact::FOLLOWER || $contact['rel'] == Contact::FRIEND)) ? 1 : 0);
 345
 346                         // Contacts from OStatus are always writable
 347                         if ($contact['network'] === Protocol::OSTATUS) {
 348                                 $stat_writeable = 1;
 349                         }
 350
 351                         if ($stat_writeable != $contact['writable']) {
 352                                 $fields = ['writable' => $stat_writeable];
 353                                 DBA::update('contact', $fields, ['id' => $contact['id']]);
 354                         }
 355
 356                         // Are we allowed to import from this person?
 357                         if ($contact['rel'] == Contact::FOLLOWER || $contact['blocked']) {
 358                                 // set the last-update so we don't keep polling
 359                                 DBA::update('contact', ['last-update' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
 360                                 Logger::log('Contact is blocked or only a follower');
 361                                 return;
 362                         }
 363
 364                         $cookiejar = tempnam(get_temppath(), 'cookiejar-onepoll-');
 365                         $curlResult = Network::curl($contact['poll'], false, $redirects, ['cookiejar' => $cookiejar]);
 366                         unlink($cookiejar);
 367
 368                         if ($curlResult->isTimeout()) {
 369                                 // set the last-update so we don't keep polling
 370                                 self::updateContact($contact, ['last-update' => DateTimeFormat::utcNow()]);
 371                                 Contact::markForArchival($contact);
 372                                 Logger::log('Contact archived');
 373                                 return;
 374                         }
 375
 376                         $xml = $curlResult->getBody();
 377
 378                 } elseif ($contact['network'] === Protocol::MAIL) {
 379                         Logger::log("Mail: Fetching for ".$contact['addr'], Logger::DEBUG);
 380
 381                         $mail_disabled = ((function_exists('imap_open') && !Config::get('system', 'imap_disabled')) ? 0 : 1);
 382                         if ($mail_disabled) {
 383                                 // set the last-update so we don't keep polling
 384                                 self::updateContact($contact, ['last-update' => DateTimeFormat::utcNow()]);
 385                                 Contact::markForArchival($contact);
 386                                 Logger::log('Contact archived');
 387                                 return;
 388                         }
 389
 390                         Logger::log("Mail: Enabled", Logger::DEBUG);
 391
 392                         $mbox = null;
 393                         $user = DBA::selectFirst('user', ['prvkey'], ['uid' => $importer_uid]);
 394
 395                         $condition = ["`server` != '' AND `uid` = ?", $importer_uid];
 396                         $mailconf = DBA::selectFirst('mailacct', [], $condition);
 397                         if (DBA::isResult($user) && DBA::isResult($mailconf)) {
 398                                 $mailbox = Email::constructMailboxName($mailconf);
 399                                 $password = '';
 400                                 openssl_private_decrypt(hex2bin($mailconf['pass']), $password, $user['prvkey']);
 401                                 $mbox = Email::connect($mailbox, $mailconf['user'], $password);
 402                                 unset($password);
 403                                 Logger::log("Mail: Connect to " . $mailconf['user']);
 404                                 if ($mbox) {
 405                                         $fields = ['last_check' => DateTimeFormat::utcNow()];
 406                                         DBA::update('mailacct', $fields, ['id' => $mailconf['id']]);
 407                                         Logger::log("Mail: Connected to " . $mailconf['user']);
 408                                 } else {
 409                                         Logger::log("Mail: Connection error ".$mailconf['user']." ".print_r(imap_errors(), true));
 410                                 }
 411                         }
 412
 413                         if ($mbox) {
 414                                 $msgs = Email::poll($mbox, $contact['addr']);
 415
 416                                 if (count($msgs)) {
 417                                         Logger::log("Mail: Parsing ".count($msgs)." mails from ".$contact['addr']." for ".$mailconf['user'], Logger::DEBUG);
 418
 419                                         $metas = Email::messageMeta($mbox, implode(',', $msgs));
 420
 421                                         if (count($metas) != count($msgs)) {
 422                                                 Logger::log("for " . $mailconf['user'] . " there are ". count($msgs) . " messages but received " . count($metas) . " metas", Logger::DEBUG);
 423                                         } else {
 424                                                 $msgs = array_combine($msgs, $metas);
 425
 426                                                 foreach ($msgs as $msg_uid => $meta) {
 427                                                         Logger::log("Mail: Parsing mail ".$msg_uid, Logger::DATA);
 428
 429                                                         $datarray = [];
 430                                                         $datarray['verb'] = ACTIVITY_POST;
 431                                                         $datarray['object-type'] = ACTIVITY_OBJ_NOTE;
 432                                                         $datarray['network'] = Protocol::MAIL;
 433                                                         // $meta = Email::messageMeta($mbox, $msg_uid);
 434
 435                                                         $datarray['uri'] = Email::msgid2iri(trim($meta->message_id, '<>'));
 436
 437                                                         // Have we seen it before?
 438                                                         $fields = ['deleted', 'id'];
 439                                                         $condition = ['uid' => $importer_uid, 'uri' => $datarray['uri']];
 440                                                         $item = Item::selectFirst($fields, $condition);
 441                                                         if (DBA::isResult($item)) {
 442                                                                 Logger::log("Mail: Seen before ".$msg_uid." for ".$mailconf['user']." UID: ".$importer_uid." URI: ".$datarray['uri'],Logger::DEBUG);
 443
 444                                                                 // Only delete when mails aren't automatically moved or deleted
 445                                                                 if (($mailconf['action'] != 1) && ($mailconf['action'] != 3))
 446                                                                         if ($meta->deleted && ! $item['deleted']) {
 447                                                                                 $fields = ['deleted' => true, 'changed' => DateTimeFormat::utcNow()];
 448                                                                                 Item::update($fields, ['id' => $item['id']]);
 449                                                                         }
 450
 451                                                                 switch ($mailconf['action']) {
 452                                                                         case 0:
 453                                                                                 Logger::log("Mail: Seen before ".$msg_uid." for ".$mailconf['user'].". Doing nothing.", Logger::DEBUG);
 454                                                                                 break;
 455                                                                         case 1:
 456                                                                                 Logger::log("Mail: Deleting ".$msg_uid." for ".$mailconf['user']);
 457                                                                                 imap_delete($mbox, $msg_uid, FT_UID);
 458                                                                                 break;
 459                                                                         case 2:
 460                                                                                 Logger::log("Mail: Mark as seen ".$msg_uid." for ".$mailconf['user']);
 461                                                                                 imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
 462                                                                                 break;
 463                                                                         case 3:
 464                                                                                 Logger::log("Mail: Moving ".$msg_uid." to ".$mailconf['movetofolder']." for ".$mailconf['user']);
 465                                                                                 imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
 466                                                                                 if ($mailconf['movetofolder'] != "") {
 467                                                                                         imap_mail_move($mbox, $msg_uid, $mailconf['movetofolder'], FT_UID);
 468                                                                                 }
 469                                                                                 break;
 470                                                                 }
 471                                                                 continue;
 472                                                         }
 473
 474
 475                                                         // look for a 'references' or an 'in-reply-to' header and try to match with a parent item we have locally.
 476                                                         $raw_refs = ((property_exists($meta, 'references')) ? str_replace("\t", '', $meta->references) : '');
 477                                                         if (!trim($raw_refs)) {
 478                                                                 $raw_refs = ((property_exists($meta, 'in_reply_to')) ? str_replace("\t", '', $meta->in_reply_to) : '');
 479                                                         }
 480                                                         $raw_refs = trim($raw_refs);  // Don't allow a blank reference in $refs_arr
 481
 482                                                         if ($raw_refs) {
 483                                                                 $refs_arr = explode(' ', $raw_refs);
 484                                                                 if (count($refs_arr)) {
 485                                                                         for ($x = 0; $x < count($refs_arr); $x ++) {
 486                                                                                 $refs_arr[$x] = Email::msgid2iri(str_replace(['<', '>', ' '],['', '', ''], $refs_arr[$x]));
 487                                                                         }
 488                                                                 }
 489                                                                 $condition = ['uri' => $refs_arr, 'uid' => $importer_uid];
 490                                                                 $parent = Item::selectFirst(['parent-uri'], $condition);
 491                                                                 if (DBA::isResult($parent)) {
 492                                                                         $datarray['parent-uri'] = $parent['parent-uri'];  // Set the parent as the top-level item
 493                                                                 }
 494                                                         }
 495
 496                                                         // Decoding the header
 497                                                         $subject = imap_mime_header_decode($meta->subject);
 498                                                         $datarray['title'] = "";
 499                                                         foreach ($subject as $subpart) {
 500                                                                 if ($subpart->charset != "default") {
 501                                                                         $datarray['title'] .= iconv($subpart->charset, 'UTF-8//IGNORE', $subpart->text);
 502                                                                 } else {
 503                                                                         $datarray['title'] .= $subpart->text;
 504                                                                 }
 505                                                         }
 506                                                         $datarray['title'] = Strings::escapeTags(trim($datarray['title']));
 507
 508                                                         //$datarray['title'] = Strings::escapeTags(trim($meta->subject));
 509                                                         $datarray['created'] = DateTimeFormat::utc($meta->date);
 510
 511                                                         // Is it a reply?
 512                                                         $reply = ((substr(strtolower($datarray['title']), 0, 3) == "re:") ||
 513                                                                 (substr(strtolower($datarray['title']), 0, 3) == "re-") ||
 514                                                                 ($raw_refs != ""));
 515
 516                                                         // Remove Reply-signs in the subject
 517                                                         $datarray['title'] = self::RemoveReply($datarray['title']);
 518
 519                                                         // If it seems to be a reply but a header couldn't be found take the last message with matching subject
 520                                                         if (empty($datarray['parent-uri']) && $reply) {
 521                                                                 $condition = ['title' => $datarray['title'], 'uid' => $importer_uid, 'network' => Protocol::MAIL];
 522                                                                 $params = ['order' => ['created' => true]];
 523                                                                 $parent = Item::selectFirst(['parent-uri'], $condition, $params);
 524                                                                 if (DBA::isResult($parent)) {
 525                                                                         $datarray['parent-uri'] = $parent['parent-uri'];
 526                                                                 }
 527                                                         }
 528
 529                                                         if (empty($datarray['parent-uri'])) {
 530                                                                 $datarray['parent-uri'] = $datarray['uri'];
 531                                                         }
 532
 533                                                         $r = Email::getMessage($mbox, $msg_uid, $reply);
 534                                                         if (!$r) {
 535                                                                 Logger::log("Mail: can't fetch msg ".$msg_uid." for ".$mailconf['user']);
 536                                                                 continue;
 537                                                         }
 538                                                         $datarray['body'] = Strings::escapeHtml($r['body']);
 539                                                         $datarray['body'] = BBCode::limitBodySize($datarray['body']);
 540
 541                                                         Logger::log("Mail: Importing ".$msg_uid." for ".$mailconf['user']);
 542
 543                                                         /// @TODO Adding a gravatar for the original author would be cool
 544
 545                                                         $from = imap_mime_header_decode($meta->from);
 546                                                         $fromdecoded = "";
 547                                                         foreach ($from as $frompart) {
 548                                                                 if ($frompart->charset != "default") {
 549                                                                         $fromdecoded .= iconv($frompart->charset, 'UTF-8//IGNORE', $frompart->text);
 550                                                                 } else {
 551                                                                         $fromdecoded .= $frompart->text;
 552                                                                 }
 553                                                         }
 554
 555                                                         $fromarr = imap_rfc822_parse_adrlist($fromdecoded, $a->getHostName());
 556
 557                                                         $frommail = $fromarr[0]->mailbox."@".$fromarr[0]->host;
 558
 559                                                         if (isset($fromarr[0]->personal)) {
 560                                                                 $fromname = $fromarr[0]->personal;
 561                                                         } else {
 562                                                                 $fromname = $frommail;
 563                                                         }
 564
 565                                                         $datarray['author-name'] = $fromname;
 566                                                         $datarray['author-link'] = "mailto:".$frommail;
 567                                                         $datarray['author-avatar'] = $contact['photo'];
 568
 569                                                         $datarray['owner-name'] = $contact['name'];
 570                                                         $datarray['owner-link'] = "mailto:".$contact['addr'];
 571                                                         $datarray['owner-avatar'] = $contact['photo'];
 572
 573                                                         $datarray['uid'] = $importer_uid;
 574                                                         $datarray['contact-id'] = $contact['id'];
 575                                                         if ($datarray['parent-uri'] === $datarray['uri']) {
 576                                                                 $datarray['private'] = 1;
 577                                                         }
 578                                                         if (($contact['network'] === Protocol::MAIL) && !PConfig::get($importer_uid, 'system', 'allow_public_email_replies')) {
 579                                                                 $datarray['private'] = 1;
 580                                                                 $datarray['allow_cid'] = '<' . $contact['id'] . '>';
 581                                                         }
 582
 583                                                         $stored_item = Item::insert($datarray);
 584
 585                                                         switch ($mailconf['action']) {
 586                                                                 case 0:
 587                                                                         Logger::log("Mail: Seen before ".$msg_uid." for ".$mailconf['user'].". Doing nothing.", Logger::DEBUG);
 588                                                                         break;
 589                                                                 case 1:
 590                                                                         Logger::log("Mail: Deleting ".$msg_uid." for ".$mailconf['user']);
 591                                                                         imap_delete($mbox, $msg_uid, FT_UID);
 592                                                                         break;
 593                                                                 case 2:
 594                                                                         Logger::log("Mail: Mark as seen ".$msg_uid." for ".$mailconf['user']);
 595                                                                         imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
 596                                                                         break;
 597                                                                 case 3:
 598                                                                         Logger::log("Mail: Moving ".$msg_uid." to ".$mailconf['movetofolder']." for ".$mailconf['user']);
 599                                                                         imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
 600                                                                         if ($mailconf['movetofolder'] != "") {
 601                                                                                 imap_mail_move($mbox, $msg_uid, $mailconf['movetofolder'], FT_UID);
 602                                                                         }
 603                                                                         break;
 604                                                         }
 605                                                 }
 606                                         }
 607                                 } else {
 608                                         Logger::log("Mail: no mails for ".$mailconf['user']);
 609                                 }
 610
 611                                 Logger::log("Mail: closing connection for ".$mailconf['user']);
 612                                 imap_close($mbox);
 613                         }
 614                 }
 615
 616                 if ($xml) {
 617                         Logger::log('received xml : ' . $xml, Logger::DATA);
 618                         if (!strstr($xml, '<')) {
 619                                 Logger::log('post_handshake: response from ' . $url . ' did not contain XML.');
 620
 621                                 $fields = ['last-update' => DateTimeFormat::utcNow(), 'failure_update' => DateTimeFormat::utcNow()];
 622                                 self::updateContact($contact, $fields);
 623                                 Contact::markForArchival($contact);
 624                                 return;
 625                         }
 626
 627
 628                         Logger::log("Consume feed of contact ".$contact['id']);
 629
 630                         consume_feed($xml, $importer, $contact, $hub);
 631
 632                         // do it a second time for DFRN so that any children find their parents.
 633                         if ($contact['network'] === Protocol::DFRN) {
 634                                 consume_feed($xml, $importer, $contact, $hub);
 635                         }
 636
 637                         $hubmode = 'subscribe';
 638                         if ($contact['network'] === Protocol::DFRN || $contact['blocked']) {
 639                                 $hubmode = 'unsubscribe';
 640                         }
 641
 642                         if (($contact['network'] === Protocol::OSTATUS ||  $contact['network'] == Protocol::FEED) && (! $contact['hub-verify'])) {
 643                                 $hub_update = true;
 644                         }
 645
 646                         if ($force) {
 647                                 $hub_update = true;
 648                         }
 649
 650                         Logger::log("Contact ".$contact['id']." returned hub: ".$hub." Network: ".$contact['network']." Relation: ".$contact['rel']." Update: ".$hub_update);
 651
 652                         if (strlen($hub) && $hub_update && (($contact['rel'] != Contact::FOLLOWER) || $contact['network'] == Protocol::FEED)) {
 653                                 Logger::log('hub ' . $hubmode . ' : ' . $hub . ' contact name : ' . $contact['name'] . ' local user : ' . $importer['name']);
 654                                 $hubs = explode(',', $hub);
 655
 656                                 if (count($hubs)) {
 657                                         foreach ($hubs as $h) {
 658                                                 $h = trim($h);
 659
 660                                                 if (!strlen($h)) {
 661                                                         continue;
 662                                                 }
 663
 664                                                 subscribe_to_hub($h, $importer, $contact, $hubmode);
 665                                         }
 666                                 }
 667                         }
 668
 669                         $updated = DateTimeFormat::utcNow();
 670
 671                         self::updateContact($contact, ['last-update' => $updated, 'success_update' => $updated]);
 672                         DBA::update('gcontact', ['last_contact' => $updated], ['nurl' => $contact['nurl']]);
 673                         Contact::unmarkForArchival($contact);
 674                 } elseif (in_array($contact["network"], [Protocol::DFRN, Protocol::DIASPORA, Protocol::OSTATUS, Protocol::FEED])) {
 675                         $updated = DateTimeFormat::utcNow();
 676
 677                         self::updateContact($contact, ['last-update' => $updated, 'failure_update' => $updated]);
 678                         DBA::update('gcontact', ['last_failure' => $updated], ['nurl' => $contact['nurl']]);
 679                         Contact::markForArchival($contact);
 680                 } else {
 681                         self::updateContact($contact, ['last-update' => DateTimeFormat::utcNow()]);
 682                 }
 683
 684                 Logger::log('End');
 685                 return;
 686         }
 687
 688         private static function RemoveReply($subject)
 689         {
 690                 while (in_array(strtolower(substr($subject, 0, 3)), ["re:", "aw:"])) {
 691                         $subject = trim(substr($subject, 4));
 692                 }
 693
 694                 return $subject;
 695         }
 696
 697         /**
 698          * @brief Updates a personal contact entry and the public contact entry
 699          *
 700          * @param array $contact The personal contact entry
 701          * @param array $fields  The fields that are updated
 702          * @throws \Exception
 703          */
 704         private static function updateContact(array $contact, array $fields)
 705         {
 706                 DBA::update('contact', $fields, ['id' => $contact['id']]);
 707                 DBA::update('contact', $fields, ['uid' => 0, 'nurl' => $contact['nurl']]);
 708         }
 709 }