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