src/Worker/OnePoll.php

   1 <?php
   2 namespace Friendica\Worker;
   3
   4 use Friendica\Core\Config;
   5 use Friendica\Core\PConfig;
   6 use Friendica\Database\DBM;
   7 use Friendica\Protocol\PortableContact;
   8 use dba;
   9
  10 require_once 'include/follow.php';
  11
  12 Class OnePoll
  13 {
  14         public static function execute($contact_id = 0, $command = '') {
  15                 global $a;
  16
  17                 require_once 'include/datetime.php';
  18                 require_once 'include/items.php';
  19                 require_once 'include/Contact.php';
  20                 require_once 'include/email.php';
  21                 require_once 'include/queue_fn.php';
  22
  23                 logger('onepoll: start');
  24
  25                 $manual_id  = 0;
  26                 $generation = 0;
  27                 $hub_update = false;
  28                 $force      = false;
  29                 $restart    = false;
  30
  31                 if ($command == "force") {
  32                         $force = true;
  33                 }
  34
  35                 if (!$contact_id) {
  36                         logger('onepoll: no contact');
  37                         return;
  38                 }
  39
  40                 $d = datetime_convert();
  41
  42                 // Only poll from those with suitable relationships,
  43                 // and which have a polling address and ignore Diaspora since
  44                 // we are unable to match those posts with a Diaspora GUID and prevent duplicates.
  45
  46                 $contacts = q("SELECT `contact`.* FROM `contact`
  47                         WHERE (`rel` = %d OR `rel` = %d) AND `poll` != ''
  48                         AND NOT `network` IN ('%s', '%s')
  49                         AND `contact`.`id` = %d
  50                         AND `self` = 0 AND `contact`.`blocked` = 0 AND `contact`.`readonly` = 0
  51                         AND `contact`.`archive` = 0 LIMIT 1",
  52                         intval(CONTACT_IS_SHARING),
  53                         intval(CONTACT_IS_FRIEND),
  54                         dbesc(NETWORK_FACEBOOK),
  55                         dbesc(NETWORK_PUMPIO),
  56                         intval($contact_id)
  57                 );
  58
  59                 if (!count($contacts)) {
  60                         logger('Contact not found or cannot be used.');
  61                         return;
  62                 }
  63
  64                 $contact = $contacts[0];
  65
  66                 $importer_uid = $contact['uid'];
  67
  68                 // load current friends if possible.
  69                 if (($contact['poco'] != "") && ($contact['success_update'] > $contact['failure_update'])) {
  70                         $r = q("SELECT count(*) AS total FROM glink
  71                                 WHERE `cid` = %d AND updated > UTC_TIMESTAMP() - INTERVAL 1 DAY",
  72                                 intval($contact['id'])
  73                         );
  74                         if (DBM::is_result($r)) {
  75                                 if (!$r[0]['total']) {
  76                                         PortableContact::loadWorker($contact['id'], $importer_uid, 0, $contact['poco']);
  77                                 }
  78                         }
  79                 }
  80
  81                 /// @TODO Check why we don't poll the Diaspora feed at the moment (some guid problem in the items?)
  82                 /// @TODO Check whether this is possible with Redmatrix
  83                 if ($contact["network"] == NETWORK_DIASPORA) {
  84                         if (poco_do_update($contact["created"], $contact["last-item"], $contact["failure_update"], $contact["success_update"])) {
  85                                 $last_updated = poco_last_updated($contact["url"]);
  86                                 $updated = datetime_convert();
  87                                 if ($last_updated) {
  88                                         $fields = array('last-item' => $last_updated, 'last-update' => $updated, 'success_update' => $updated);
  89                                         dba::update('contact', $fields, array('id' => $contact['id']));
  90                                 } else {
  91                                         dba::update('contact', array('last-update' => $updated, 'failure_update' => $updated), array('id' => $contact['id']));
  92                                 }
  93                         }
  94                         return;
  95                 }
  96
  97                 $xml = false;
  98
  99                 $t = $contact['last-update'];
 100
 101                 if ($contact['subhub']) {
 102                         $poll_interval = Config::get('system', 'pushpoll_frequency');
 103                         $contact['priority'] = (($poll_interval !== false) ? intval($poll_interval) : 3);
 104                         $hub_update = false;
 105
 106                         if (datetime_convert('UTC', 'UTC', 'now') > datetime_convert('UTC', 'UTC', $t . " + 1 day")) {
 107                                 $hub_update = true;
 108                         }
 109                 } else {
 110                         $hub_update = false;
 111                 }
 112
 113                 $last_update = (($contact['last-update'] <= NULL_DATE)
 114                         ? datetime_convert('UTC', 'UTC', 'now - 7 days', ATOM_TIME)
 115                         : datetime_convert('UTC', 'UTC', $contact['last-update'], ATOM_TIME)
 116                 );
 117
 118                 // Update the contact entry
 119                 if (($contact['network'] === NETWORK_OSTATUS) || ($contact['network'] === NETWORK_DIASPORA) || ($contact['network'] === NETWORK_DFRN)) {
 120                         if (!poco_reachable($contact['url'])) {
 121                                 logger("Skipping probably dead contact ".$contact['url']);
 122                                 return;
 123                         }
 124
 125                         if (!update_contact($contact["id"])) {
 126                                 mark_for_death($contact);
 127                                 logger('Contact is marked dead');
 128                                 return;
 129                         } else {
 130                                 unmark_for_death($contact);
 131                         }
 132                 }
 133
 134                 if ($importer_uid == 0) {
 135                         logger('Ignore public contacts');
 136                         return;
 137                 }
 138
 139                 $r = q("SELECT `contact`.*, `user`.`page-flags` FROM `contact` INNER JOIN `user` on `contact`.`uid` = `user`.`uid` WHERE `user`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
 140                         intval($importer_uid)
 141                 );
 142
 143                 if (!DBM::is_result($r)) {
 144                         logger('No self contact for user '.$importer_uid);
 145                         return;
 146                 }
 147
 148                 $importer = $r[0];
 149
 150                 logger("onepoll: poll: ({$contact['id']}) IMPORTER: {$importer['name']}, CONTACT: {$contact['name']}");
 151
 152                 if ($contact['network'] === NETWORK_DFRN) {
 153                         $idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
 154                         if (intval($contact['duplex']) && $contact['dfrn-id']) {
 155                                 $idtosend = '0:' . $orig_id;
 156                         }
 157                         if (intval($contact['duplex']) && $contact['issued-id']) {
 158                                 $idtosend = '1:' . $orig_id;
 159                         }
 160
 161                         // they have permission to write to us. We already filtered this in the contact query.
 162                         $perm = 'rw';
 163
 164                         // But this may be our first communication, so set the writable flag if it isn't set already.
 165
 166                         if (!intval($contact['writable'])) {
 167                                 $fields = array('writable' => true);
 168                                 dba::update('contact', $fields, array('id' => $contact['id']));
 169                         }
 170
 171                         $url = $contact['poll'] . '?dfrn_id=' . $idtosend
 172                                 . '&dfrn_version=' . DFRN_PROTOCOL_VERSION
 173                                 . '&type=data&last_update=' . $last_update
 174                                 . '&perm=' . $perm ;
 175
 176                         $ret = z_fetch_url($url);
 177
 178                         if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
 179                                 return;
 180                         }
 181
 182                         $handshake_xml = $ret['body'];
 183
 184                         $html_code = $a->get_curl_code();
 185
 186                         logger('onepoll: handshake with url ' . $url . ' returns xml: ' . $handshake_xml, LOGGER_DATA);
 187
 188
 189                         if (!strlen($handshake_xml) || ($html_code >= 400) || !$html_code) {
 190                                 logger("poller: $url appears to be dead - marking for death ");
 191
 192                                 // dead connection - might be a transient event, or this might
 193                                 // mean the software was uninstalled or the domain expired.
 194                                 // Will keep trying for one month.
 195
 196                                 mark_for_death($contact);
 197
 198                                 // set the last-update so we don't keep polling
 199                                 $fields = array('last-update' => datetime_convert(), 'failure_update' => datetime_convert());
 200                                 dba::update('contact', $fields, array('id' => $contact['id']));
 201
 202                                 return;
 203                         }
 204
 205                         if (!strstr($handshake_xml, '<')) {
 206                                 logger('poller: response from ' . $url . ' did not contain XML.');
 207
 208                                 mark_for_death($contact);
 209
 210                                 $fields = array('last-update' => datetime_convert(), 'failure_update' => datetime_convert());
 211                                 dba::update('contact', $fields, array('id' => $contact['id']));
 212
 213                                 return;
 214                         }
 215
 216
 217                         $res = parse_xml_string($handshake_xml);
 218
 219                         if (intval($res->status) == 1) {
 220                                 logger("poller: $url replied status 1 - marking for death ");
 221
 222                                 // we may not be friends anymore. Will keep trying for one month.
 223                                 // set the last-update so we don't keep polling
 224                                 $fields = array('last-update' => datetime_convert(), 'failure_update' => datetime_convert());
 225                                 dba::update('contact', $fields, array('id' => $contact['id']));
 226
 227                                 mark_for_death($contact);
 228                         } elseif ($contact['term-date'] > NULL_DATE) {
 229                                 logger("poller: $url back from the dead - removing mark for death");
 230                                 unmark_for_death($contact);
 231                         }
 232
 233                         if ((intval($res->status) != 0) || !strlen($res->challenge) || !strlen($res->dfrn_id)) {
 234                                 return;
 235                         }
 236
 237                         if (((float)$res->dfrn_version > 2.21) && ($contact['poco'] == '')) {
 238                                 $fields = array('poco' => str_replace('/profile/', '/poco/', $contact['url']));
 239                                 dba::update('contact', $fields, array('id' => $contact['id']));
 240                         }
 241
 242                         $postvars = array();
 243
 244                         $sent_dfrn_id = hex2bin((string) $res->dfrn_id);
 245                         $challenge    = hex2bin((string) $res->challenge);
 246
 247                         $final_dfrn_id = '';
 248
 249                         if ($contact['duplex'] && strlen($contact['prvkey'])) {
 250                                 openssl_private_decrypt($sent_dfrn_id, $final_dfrn_id, $contact['prvkey']);
 251                                 openssl_private_decrypt($challenge, $postvars['challenge'], $contact['prvkey']);
 252                         } else {
 253                                 openssl_public_decrypt($sent_dfrn_id, $final_dfrn_id, $contact['pubkey']);
 254                                 openssl_public_decrypt($challenge, $postvars['challenge'], $contact['pubkey']);
 255                         }
 256
 257                         $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
 258
 259                         if (strpos($final_dfrn_id, ':') == 1) {
 260                                 $final_dfrn_id = substr($final_dfrn_id, 2);
 261                         }
 262
 263                         if ($final_dfrn_id != $orig_id) {
 264                                 logger('poller: ID did not decode: ' . $contact['id'] . ' orig: ' . $orig_id . ' final: ' . $final_dfrn_id);
 265                                 // did not decode properly - cannot trust this site
 266                                 return;
 267                         }
 268
 269                         $postvars['dfrn_id'] = $idtosend;
 270                         $postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
 271                         $postvars['perm'] = 'rw';
 272
 273                         $xml = post_url($contact['poll'], $postvars);
 274
 275                 } elseif (($contact['network'] === NETWORK_OSTATUS)
 276                         || ($contact['network'] === NETWORK_DIASPORA)
 277                         || ($contact['network'] === NETWORK_FEED)) {
 278
 279                         // Upgrading DB fields from an older Friendica version
 280                         // Will only do this once per notify-enabled OStatus contact
 281                         // or if relationship changes
 282
 283                         $stat_writeable = ((($contact['notify']) && ($contact['rel'] == CONTACT_IS_FOLLOWER || $contact['rel'] == CONTACT_IS_FRIEND)) ? 1 : 0);
 284
 285                         // Contacts from OStatus are always writable
 286                         if ($contact['network'] === NETWORK_OSTATUS) {
 287                                 $stat_writeable = 1;
 288                         }
 289
 290                         if ($stat_writeable != $contact['writable']) {
 291                                 $fields = array('writable' => $stat_writeable);
 292                                 dba::update('contact', $fields, array('id' => $contact['id']));
 293                         }
 294
 295                         // Are we allowed to import from this person?
 296
 297                         if ($contact['rel'] == CONTACT_IS_FOLLOWER || $contact['blocked'] || $contact['readonly']) {
 298                                 return;
 299                         }
 300
 301                         $cookiejar = tempnam(get_temppath(), 'cookiejar-onepoll-');
 302                         $ret = z_fetch_url($contact['poll'], false, $redirects, array('cookiejar' => $cookiejar));
 303
 304                         if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
 305                                 return;
 306                         }
 307
 308                         $xml = $ret['body'];
 309
 310                         unlink($cookiejar);
 311                 } elseif ($contact['network'] === NETWORK_MAIL || $contact['network'] === NETWORK_MAIL2) {
 312
 313                         logger("Mail: Fetching for ".$contact['addr'], LOGGER_DEBUG);
 314
 315                         $mail_disabled = ((function_exists('imap_open') && (! Config::get('system', 'imap_disabled'))) ? 0 : 1);
 316                         if ($mail_disabled) {
 317                                 return;
 318                         }
 319
 320                         logger("Mail: Enabled", LOGGER_DEBUG);
 321
 322                         $mbox = null;
 323                         $x = dba::select('user', array('prvkey'), array('uid' => $importer_uid), array('limit' => 1));
 324
 325                         $condition = array("`server` != '' AND `uid` = ?", $importer_uid);
 326                         $mailconf = dba::select('mailacct', array(), $condition, array('limit' => 1));
 327                         if (DBM::is_result($x) && DBM::is_result($mailconf)) {
 328                                 $mailbox = construct_mailbox_name($mailconf);
 329                                 $password = '';
 330                                 openssl_private_decrypt(hex2bin($mailconf['pass']), $password, $x['prvkey']);
 331                                 $mbox = email_connect($mailbox, $mailconf['user'], $password);
 332                                 unset($password);
 333                                 logger("Mail: Connect to " . $mailconf['user']);
 334                                 if ($mbox) {
 335                                         $fields = array('last_check' => datetime_convert());
 336                                         dba::update('mailacct', $fields, array('id' => $mailconf['id']));
 337                                         logger("Mail: Connected to " . $mailconf['user']);
 338                                 } else {
 339                                         logger("Mail: Connection error ".$mailconf['user']." ".print_r(imap_errors(), true));
 340                                 }
 341                         }
 342
 343                         if ($mbox) {
 344                                 $msgs = email_poll($mbox, $contact['addr']);
 345
 346                                 if (count($msgs)) {
 347                                         logger("Mail: Parsing ".count($msgs)." mails from ".$contact['addr']." for ".$mailconf['user'], LOGGER_DEBUG);
 348
 349                                         $metas = email_msg_meta($mbox,implode(',', $msgs));
 350                                         if (count($metas) != count($msgs)) {
 351                                                 logger("onepoll: for " . $mailconf['user'] . " there are ". count($msgs) . " messages but received " . count($metas) . " metas", LOGGER_DEBUG);
 352                                         } else {
 353                                                 $msgs = array_combine($msgs, $metas);
 354
 355                                                 foreach ($msgs as $msg_uid => $meta) {
 356                                                         logger("Mail: Parsing mail ".$msg_uid, LOGGER_DATA);
 357
 358                                                         $datarray = array();
 359                                                         $datarray['verb'] = ACTIVITY_POST;
 360                                                         $datarray['object-type'] = ACTIVITY_OBJ_NOTE;
 361                 //                                      $meta = email_msg_meta($mbox, $msg_uid);
 362                 //                                      $headers = email_msg_headers($mbox, $msg_uid);
 363
 364                                                         $datarray['uri'] = msgid2iri(trim($meta->message_id, '<>'));
 365
 366                                                         // Have we seen it before?
 367                                                         $fields = array('deleted', 'id');
 368                                                         $condition = array('uid' => $importer_uid, 'uri' => $datarray['uri']);
 369                                                         $r = dba::select('item', $fields, $condition, array('limit' => 1));
 370
 371                                                         if (DBM::is_result($r)) {
 372                                                                 logger("Mail: Seen before ".$msg_uid." for ".$mailconf['user']." UID: ".$importer_uid." URI: ".$datarray['uri'],LOGGER_DEBUG);
 373
 374                                                                 // Only delete when mails aren't automatically moved or deleted
 375                                                                 if (($mailconf['action'] != 1) && ($mailconf['action'] != 3))
 376                                                                         if ($meta->deleted && ! $r['deleted']) {
 377                                                                                 $fields = array('deleted' => true, 'changed' => datetime_convert());
 378                                                                                 dba::update('item', $fields, array('id' => $r['id']));
 379                                                                         }
 380
 381                                                                 switch ($mailconf['action']) {
 382                                                                         case 0:
 383                                                                                 logger("Mail: Seen before ".$msg_uid." for ".$mailconf['user'].". Doing nothing.", LOGGER_DEBUG);
 384                                                                                 break;
 385                                                                         case 1:
 386                                                                                 logger("Mail: Deleting ".$msg_uid." for ".$mailconf['user']);
 387                                                                                 imap_delete($mbox, $msg_uid, FT_UID);
 388                                                                                 break;
 389                                                                         case 2:
 390                                                                                 logger("Mail: Mark as seen ".$msg_uid." for ".$mailconf['user']);
 391                                                                                 imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
 392                                                                                 break;
 393                                                                         case 3:
 394                                                                                 logger("Mail: Moving ".$msg_uid." to ".$mailconf['movetofolder']." for ".$mailconf['user']);
 395                                                                                 imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
 396                                                                                 if ($mailconf['movetofolder'] != "") {
 397                                                                                         imap_mail_move($mbox, $msg_uid, $mailconf['movetofolder'], FT_UID);
 398                                                                                 }
 399                                                                                 break;
 400                                                                 }
 401                                                                 continue;
 402                                                         }
 403
 404
 405                                                         // look for a 'references' or an 'in-reply-to' header and try to match with a parent item we have locally.
 406                                                         $raw_refs = ((property_exists($meta, 'references')) ? str_replace("\t", '', $meta->references) : '');
 407                                                         if (!trim($raw_refs)) {
 408                                                                 $raw_refs = ((property_exists($meta, 'in_reply_to')) ? str_replace("\t", '', $meta->in_reply_to) : '');
 409                                                         }
 410                                                         $raw_refs = trim($raw_refs);  // Don't allow a blank reference in $refs_arr
 411
 412                                                         if ($raw_refs) {
 413                                                                 $refs_arr = explode(' ', $raw_refs);
 414                                                                 if (count($refs_arr)) {
 415                                                                         for ($x = 0; $x < count($refs_arr); $x ++) {
 416                                                                                 $refs_arr[$x] = "'" . msgid2iri(str_replace(array('<', '>', ' '),array('', '', ''),dbesc($refs_arr[$x]))) . "'";
 417                                                                         }
 418                                                                 }
 419                                                                 $qstr = implode(',', $refs_arr);
 420                                                                 $r = q("SELECT `parent-uri` FROM `item` USE INDEX (`uid_uri`) WHERE `uri` IN ($qstr) AND `uid` = %d LIMIT 1",
 421                                                                         intval($importer_uid)
 422                                                                 );
 423                                                                 if (DBM::is_result($r)) {
 424                                                                         $datarray['parent-uri'] = $r[0]['parent-uri'];  // Set the parent as the top-level item
 425                                                                 }
 426                                                         }
 427
 428                                                         // Decoding the header
 429                                                         $subject = imap_mime_header_decode($meta->subject);
 430                                                         $datarray['title'] = "";
 431                                                         foreach ($subject as $subpart) {
 432                                                                 if ($subpart->charset != "default") {
 433                                                                         $datarray['title'] .= iconv($subpart->charset, 'UTF-8//IGNORE', $subpart->text);
 434                                                                 } else {
 435                                                                         $datarray['title'] .= $subpart->text;
 436                                                                 }
 437                                                         }
 438                                                         $datarray['title'] = notags(trim($datarray['title']));
 439
 440                                                         //$datarray['title'] = notags(trim($meta->subject));
 441                                                         $datarray['created'] = datetime_convert('UTC', 'UTC', $meta->date);
 442
 443                                                         // Is it a reply?
 444                                                         $reply = ((substr(strtolower($datarray['title']), 0, 3) == "re:") ||
 445                                                                 (substr(strtolower($datarray['title']), 0, 3) == "re-") ||
 446                                                                 ($raw_refs != ""));
 447
 448                                                         // Remove Reply-signs in the subject
 449                                                         $datarray['title'] = self::RemoveReply($datarray['title']);
 450
 451                                                         // If it seems to be a reply but a header couldn't be found take the last message with matching subject
 452                                                         if (empty($datarray['parent-uri']) && $reply) {
 453                                                                 $r = q("SELECT `parent-uri` FROM `item` WHERE `title` = \"%s\" AND `uid` = %d AND `network` = '%s' ORDER BY `created` DESC LIMIT 1",
 454                                                                         dbesc(protect_sprintf($datarray['title'])),
 455                                                                         intval($importer_uid),
 456                                                                         dbesc(NETWORK_MAIL));
 457                                                                 if (DBM::is_result($r)) {
 458                                                                         $datarray['parent-uri'] = $r[0]['parent-uri'];
 459                                                                 }
 460                                                         }
 461
 462                                                         if (empty($datarray['parent-uri'])) {
 463                                                                 $datarray['parent-uri'] = $datarray['uri'];
 464                                                         }
 465
 466                                                         $r = email_get_msg($mbox, $msg_uid, $reply);
 467                                                         if (!$r) {
 468                                                                 logger("Mail: can't fetch msg ".$msg_uid." for ".$mailconf['user']);
 469                                                                 continue;
 470                                                         }
 471                                                         $datarray['body'] = escape_tags($r['body']);
 472                                                         $datarray['body'] = limit_body_size($datarray['body']);
 473
 474                                                         logger("Mail: Importing ".$msg_uid." for ".$mailconf['user']);
 475
 476                                                         /// @TODO Adding a gravatar for the original author would be cool
 477
 478                                                         $from = imap_mime_header_decode($meta->from);
 479                                                         $fromdecoded = "";
 480                                                         foreach ($from as $frompart) {
 481                                                                 if ($frompart->charset != "default") {
 482                                                                         $fromdecoded .= iconv($frompart->charset, 'UTF-8//IGNORE', $frompart->text);
 483                                                                 } else {
 484                                                                         $fromdecoded .= $frompart->text;
 485                                                                 }
 486                                                         }
 487
 488                                                         $fromarr = imap_rfc822_parse_adrlist($fromdecoded, $a->get_hostname());
 489
 490                                                         $frommail = $fromarr[0]->mailbox."@".$fromarr[0]->host;
 491
 492                                                         if (isset($fromarr[0]->personal)) {
 493                                                                 $fromname = $fromarr[0]->personal;
 494                                                         } else {
 495                                                                 $fromname = $frommail;
 496                                                         }
 497
 498                                                         $datarray['author-name'] = $fromname;
 499                                                         $datarray['author-link'] = "mailto:".$frommail;
 500                                                         $datarray['author-avatar'] = $contact['photo'];
 501
 502                                                         $datarray['owner-name'] = $contact['name'];
 503                                                         $datarray['owner-link'] = "mailto:".$contact['addr'];
 504                                                         $datarray['owner-avatar'] = $contact['photo'];
 505
 506                                                         $datarray['uid'] = $importer_uid;
 507                                                         $datarray['contact-id'] = $contact['id'];
 508                                                         if ($datarray['parent-uri'] === $datarray['uri']) {
 509                                                                 $datarray['private'] = 1;
 510                                                         }
 511                                                         if (($contact['network'] === NETWORK_MAIL) && (!PConfig::get($importer_uid, 'system', 'allow_public_email_replies'))) {
 512                                                                 $datarray['private'] = 1;
 513                                                                 $datarray['allow_cid'] = '<' . $contact['id'] . '>';
 514                                                         }
 515
 516                                                         $stored_item = item_store($datarray);
 517
 518                                                         $condition = array('parent-uri' => $datarray['parent-uri'], 'uid' => $importer_uid);
 519                                                         dba::update('item', array('last-child' => false), $condition);
 520
 521                                                         dba::update('item', array('last-child' => true), array('id' => $stored_item));
 522
 523                                                         switch ($mailconf['action']) {
 524                                                                 case 0:
 525                                                                         logger("Mail: Seen before ".$msg_uid." for ".$mailconf['user'].". Doing nothing.", LOGGER_DEBUG);
 526                                                                         break;
 527                                                                 case 1:
 528                                                                         logger("Mail: Deleting ".$msg_uid." for ".$mailconf['user']);
 529                                                                         imap_delete($mbox, $msg_uid, FT_UID);
 530                                                                         break;
 531                                                                 case 2:
 532                                                                         logger("Mail: Mark as seen ".$msg_uid." for ".$mailconf['user']);
 533                                                                         imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
 534                                                                         break;
 535                                                                 case 3:
 536                                                                         logger("Mail: Moving ".$msg_uid." to ".$mailconf['movetofolder']." for ".$mailconf['user']);
 537                                                                         imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
 538                                                                         if ($mailconf['movetofolder'] != "") {
 539                                                                                 imap_mail_move($mbox, $msg_uid, $mailconf['movetofolder'], FT_UID);
 540                                                                         }
 541                                                                         break;
 542                                                         }
 543                                                 }
 544                                         }
 545                                 } else {
 546                                         logger("Mail: no mails for ".$mailconf['user']);
 547                                 }
 548
 549                                 logger("Mail: closing connection for ".$mailconf['user']);
 550                                 imap_close($mbox);
 551                         }
 552                 }
 553
 554                 if ($xml) {
 555                         logger('poller: received xml : ' . $xml, LOGGER_DATA);
 556                         if (!strstr($xml, '<')) {
 557                                 logger('poller: post_handshake: response from ' . $url . ' did not contain XML.');
 558
 559                                 $fields = array('last-update' => datetime_convert(), 'failure_update' => datetime_convert());
 560                                 dba::update('contact', $fields, array('id' => $contact['id']));
 561
 562                                 return;
 563                         }
 564
 565
 566                         logger("Consume feed of contact ".$contact['id']);
 567
 568                         consume_feed($xml, $importer, $contact, $hub, 1, 1);
 569
 570                         // do it twice. Ensures that children of parents which may be later in the stream aren't tossed
 571
 572                         consume_feed($xml, $importer, $contact, $hub, 1, 2);
 573
 574                         $hubmode = 'subscribe';
 575                         if ($contact['network'] === NETWORK_DFRN || $contact['blocked'] || $contact['readonly']) {
 576                                 $hubmode = 'unsubscribe';
 577                         }
 578
 579                         if (($contact['network'] === NETWORK_OSTATUS ||  $contact['network'] == NETWORK_FEED) && (! $contact['hub-verify'])) {
 580                                 $hub_update = true;
 581                         }
 582
 583                         if ($force) {
 584                                 $hub_update = true;
 585                         }
 586
 587                         logger("Contact ".$contact['id']." returned hub: ".$hub." Network: ".$contact['network']." Relation: ".$contact['rel']." Update: ".$hub_update);
 588
 589                         if (strlen($hub) && $hub_update && (($contact['rel'] != CONTACT_IS_FOLLOWER) || $contact['network'] == NETWORK_FEED)) {
 590                                 logger('poller: hub ' . $hubmode . ' : ' . $hub . ' contact name : ' . $contact['name'] . ' local user : ' . $importer['name']);
 591                                 $hubs = explode(',', $hub);
 592                                 if (count($hubs)) {
 593                                         foreach ($hubs as $h) {
 594                                                 $h = trim($h);
 595                                                 if (!strlen($h)) {
 596                                                         continue;
 597                                                 }
 598                                                 subscribe_to_hub($h, $importer, $contact, $hubmode);
 599                                         }
 600                                 }
 601                         }
 602
 603                         $updated = datetime_convert();
 604
 605                         dba::update('contact', array('last-update' => $updated, 'success_update' => $updated), array('id' => $contact['id']));
 606                         dba::update('gcontact', array('last_contact' => $updated), array('nurl' => $contact['nurl']));
 607                 } elseif (in_array($contact["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, NETWORK_FEED))) {
 608                         $updated = datetime_convert();
 609
 610                         dba::update('contact', array('last-update' => $updated, 'failure_update' => $updated), array('id' => $contact['id']));
 611                         dba::update('gcontact', array('last_failure' => $updated), array('nurl' => $contact['nurl']));
 612                 } else {
 613                         dba::update('contact', array('last-update' => $updated), array('id' => $contact['id']));
 614                 }
 615
 616                 return;
 617         }
 618
 619         private static function RemoveReply($subject) {
 620                 while (in_array(strtolower(substr($subject, 0, 3)), array("re:", "aw:"))) {
 621                         $subject = trim(substr($subject, 4));
 622                 }
 623
 624                 return $subject;
 625         }
 626 }