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