+
+ /**
+ * @brief Poll DFRN contacts
+ *
+ * @param array $contact The personal contact entry
+ * @param string $updated The updated date
+ * @return string polled XML
+ * @throws \Exception
+ */
+ private static function pollDFRN(array $contact, $updated)
+ {
+ $idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
+ if (intval($contact['duplex']) && $contact['dfrn-id']) {
+ $idtosend = '0:' . $orig_id;
+ }
+ if (intval($contact['duplex']) && $contact['issued-id']) {
+ $idtosend = '1:' . $orig_id;
+ }
+
+ // they have permission to write to us. We already filtered this in the contact query.
+ $perm = 'rw';
+
+ // But this may be our first communication, so set the writable flag if it isn't set already.
+ if (!intval($contact['writable'])) {
+ $fields = ['writable' => true];
+ DBA::update('contact', $fields, ['id' => $contact['id']]);
+ }
+
+ $last_update = (($contact['last-update'] <= DBA::NULL_DATETIME)
+ ? DateTimeFormat::utc('now - 7 days', DateTimeFormat::ATOM)
+ : DateTimeFormat::utc($contact['last-update'], DateTimeFormat::ATOM)
+ );
+
+ $url = $contact['poll'] . '?dfrn_id=' . $idtosend
+ . '&dfrn_version=' . DFRN_PROTOCOL_VERSION
+ . '&type=data&last_update=' . $last_update
+ . '&perm=' . $perm;
+
+ $curlResult = Network::curl($url);
+
+ if (!$curlResult->isSuccess() && ($curlResult->getErrorNumber() == CURLE_OPERATION_TIMEDOUT)) {
+ // set the last-update so we don't keep polling
+ self::updateContact($contact, ['last-update' => $updated]);
+ Contact::markForArchival($contact);
+ Logger::log('Contact archived');
+ return false;
+ }
+
+ $handshake_xml = $curlResult->getBody();
+ $html_code = $curlResult->getReturnCode();
+
+ Logger::log('handshake with url ' . $url . ' returns xml: ' . $handshake_xml, Logger::DATA);
+
+ if (!strlen($handshake_xml) || ($html_code >= 400) || !$html_code) {
+ // dead connection - might be a transient event, or this might
+ // mean the software was uninstalled or the domain expired.
+ // Will keep trying for one month.
+ Logger::log("$url appears to be dead - marking for death ");
+
+ // set the last-update so we don't keep polling
+ $fields = ['last-update' => $updated, 'failure_update' => $updated];
+ self::updateContact($contact, $fields);
+ Contact::markForArchival($contact);
+ return false;
+ }
+
+ if (!strstr($handshake_xml, '<')) {
+ Logger::log('response from ' . $url . ' did not contain XML.');
+
+ $fields = ['last-update' => $updated, 'failure_update' => $updated];
+ self::updateContact($contact, $fields);
+ Contact::markForArchival($contact);
+ return false;
+ }
+
+ $res = XML::parseString($handshake_xml);
+
+ if (!is_object($res)) {
+ Logger::info('Unparseable response', ['url' => $url]);
+
+ $fields = ['last-update' => $updated, 'failure_update' => $updated];
+ self::updateContact($contact, $fields);
+ Contact::markForArchival($contact);
+ return false;
+ }
+
+ if (intval($res->status) == 1) {
+ // we may not be friends anymore. Will keep trying for one month.
+ Logger::log("$url replied status 1 - marking for death ");
+
+ // set the last-update so we don't keep polling
+ $fields = ['last-update' => $updated, 'failure_update' => $updated];
+ self::updateContact($contact, $fields);
+ Contact::markForArchival($contact);
+ } elseif ($contact['term-date'] > DBA::NULL_DATETIME) {
+ Contact::unmarkForArchival($contact);
+ }
+
+ if ((intval($res->status) != 0) || !strlen($res->challenge) || !strlen($res->dfrn_id)) {
+ // set the last-update so we don't keep polling
+ DBA::update('contact', ['last-update' => $updated], ['id' => $contact['id']]);
+ Logger::log('Contact status is ' . $res->status);
+ return false;
+ }
+
+ if (((float)$res->dfrn_version > 2.21) && ($contact['poco'] == '')) {
+ $fields = ['poco' => str_replace('/profile/', '/poco/', $contact['url'])];
+ DBA::update('contact', $fields, ['id' => $contact['id']]);
+ }
+
+ $postvars = [];
+
+ $sent_dfrn_id = hex2bin((string) $res->dfrn_id);
+ $challenge = hex2bin((string) $res->challenge);
+
+ $final_dfrn_id = '';
+
+ if ($contact['duplex'] && strlen($contact['prvkey'])) {
+ openssl_private_decrypt($sent_dfrn_id, $final_dfrn_id, $contact['prvkey']);
+ openssl_private_decrypt($challenge, $postvars['challenge'], $contact['prvkey']);
+ } else {
+ openssl_public_decrypt($sent_dfrn_id, $final_dfrn_id, $contact['pubkey']);
+ openssl_public_decrypt($challenge, $postvars['challenge'], $contact['pubkey']);
+ }
+
+ $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
+
+ if (strpos($final_dfrn_id, ':') == 1) {
+ $final_dfrn_id = substr($final_dfrn_id, 2);
+ }
+
+ // There are issues with the legacy DFRN transport layer.
+ // Since we mostly don't use it anyway, we won't dig into it deeper, but simply ignore it.
+ if (empty($final_dfrn_id) || empty($orig_id)) {
+ Logger::log('Contact has got no ID - quitting');
+ return false;
+ }
+
+ if ($final_dfrn_id != $orig_id) {
+ // did not decode properly - cannot trust this site
+ Logger::log('ID did not decode: ' . $contact['id'] . ' orig: ' . $orig_id . ' final: ' . $final_dfrn_id);
+
+ // set the last-update so we don't keep polling
+ DBA::update('contact', ['last-update' => $updated], ['id' => $contact['id']]);
+ Contact::markForArchival($contact);
+ return false;
+ }
+
+ $postvars['dfrn_id'] = $idtosend;
+ $postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
+ $postvars['perm'] = 'rw';
+
+ return Network::post($contact['poll'], $postvars)->getBody();
+ }
+
+ /**
+ * @brief Poll Feed/OStatus contacts
+ *
+ * @param array $contact The personal contact entry
+ * @param string $protocol The used protocol of the contact
+ * @param string $updated The updated date
+ * @return string polled XML
+ * @throws \Exception
+ */
+ private static function pollFeed(array $contact, $protocol, $updated)
+ {
+ // Upgrading DB fields from an older Friendica version
+ // Will only do this once per notify-enabled OStatus contact
+ // or if relationship changes
+
+ $stat_writeable = ((($contact['notify']) && ($contact['rel'] == Contact::FOLLOWER || $contact['rel'] == Contact::FRIEND)) ? 1 : 0);
+
+ // Contacts from OStatus are always writable
+ if ($protocol === Protocol::OSTATUS) {
+ $stat_writeable = 1;
+ }
+
+ if ($stat_writeable != $contact['writable']) {
+ $fields = ['writable' => $stat_writeable];
+ DBA::update('contact', $fields, ['id' => $contact['id']]);
+ }
+
+ // Are we allowed to import from this person?
+ if ($contact['rel'] == Contact::FOLLOWER || $contact['blocked']) {
+ // set the last-update so we don't keep polling
+ DBA::update('contact', ['last-update' => $updated], ['id' => $contact['id']]);
+ Logger::log('Contact is blocked or only a follower');
+ return false;
+ }
+
+ $cookiejar = tempnam(get_temppath(), 'cookiejar-onepoll-');
+ $curlResult = Network::curl($contact['poll'], false, ['cookiejar' => $cookiejar]);
+ unlink($cookiejar);
+
+ if ($curlResult->isTimeout()) {
+ // set the last-update so we don't keep polling
+ self::updateContact($contact, ['last-update' => $updated]);
+ Contact::markForArchival($contact);
+ Logger::log('Contact archived');
+ return false;
+ }
+
+ return $curlResult->getBody();
+ }
+
+ /**
+ * @brief Poll Mail contacts
+ *
+ * @param array $contact The personal contact entry
+ * @param integer $importer_uid The UID of the importer
+ * @param string $updated The updated date
+ * @throws \Exception
+ */
+ private static function pollMail(array $contact, $importer_uid, $updated)
+ {
+ Logger::log("Mail: Fetching for ".$contact['addr'], Logger::DEBUG);
+
+ $mail_disabled = ((function_exists('imap_open') && !Config::get('system', 'imap_disabled')) ? 0 : 1);
+ if ($mail_disabled) {
+ // set the last-update so we don't keep polling
+ self::updateContact($contact, ['last-update' => $updated]);
+ Contact::markForArchival($contact);
+ Logger::log('Contact archived');
+ return;
+ }
+
+ Logger::log("Mail: Enabled", Logger::DEBUG);
+
+ $mbox = null;
+ $user = DBA::selectFirst('user', ['prvkey'], ['uid' => $importer_uid]);
+
+ $condition = ["`server` != '' AND `uid` = ?", $importer_uid];
+ $mailconf = DBA::selectFirst('mailacct', [], $condition);
+ if (DBA::isResult($user) && DBA::isResult($mailconf)) {
+ $mailbox = Email::constructMailboxName($mailconf);
+ $password = '';
+ openssl_private_decrypt(hex2bin($mailconf['pass']), $password, $user['prvkey']);
+ $mbox = Email::connect($mailbox, $mailconf['user'], $password);
+ unset($password);
+ Logger::log("Mail: Connect to " . $mailconf['user']);
+ if ($mbox) {
+ $fields = ['last_check' => $updated];
+ DBA::update('mailacct', $fields, ['id' => $mailconf['id']]);
+ Logger::log("Mail: Connected to " . $mailconf['user']);
+ } else {
+ Logger::log("Mail: Connection error ".$mailconf['user']." ".print_r(imap_errors(), true));
+ }
+ }
+
+ if (!$mbox) {
+ return;
+ }
+
+ $msgs = Email::poll($mbox, $contact['addr']);
+
+ if (count($msgs)) {
+ Logger::log("Mail: Parsing ".count($msgs)." mails from ".$contact['addr']." for ".$mailconf['user'], Logger::DEBUG);
+
+ $metas = Email::messageMeta($mbox, implode(',', $msgs));
+
+ if (count($metas) != count($msgs)) {
+ Logger::log("for " . $mailconf['user'] . " there are ". count($msgs) . " messages but received " . count($metas) . " metas", Logger::DEBUG);
+ } else {
+ $msgs = array_combine($msgs, $metas);
+
+ foreach ($msgs as $msg_uid => $meta) {
+ Logger::log("Mail: Parsing mail ".$msg_uid, Logger::DATA);
+
+ $datarray = [];
+ $datarray['uid'] = $importer_uid;
+ $datarray['contact-id'] = $contact['id'];
+ $datarray['verb'] = Activity::POST;
+ $datarray['object-type'] = Activity\ObjectType::NOTE;
+ $datarray['network'] = Protocol::MAIL;
+ // $meta = Email::messageMeta($mbox, $msg_uid);
+
+ $datarray['uri'] = Email::msgid2iri(trim($meta->message_id, '<>'));
+
+ // Have we seen it before?
+ $fields = ['deleted', 'id'];
+ $condition = ['uid' => $importer_uid, 'uri' => $datarray['uri']];
+ $item = Item::selectFirst($fields, $condition);
+ if (DBA::isResult($item)) {
+ Logger::log("Mail: Seen before ".$msg_uid." for ".$mailconf['user']." UID: ".$importer_uid." URI: ".$datarray['uri'],Logger::DEBUG);
+
+ // Only delete when mails aren't automatically moved or deleted
+ if (($mailconf['action'] != 1) && ($mailconf['action'] != 3))
+ if ($meta->deleted && ! $item['deleted']) {
+ $fields = ['deleted' => true, 'changed' => $updated];
+ Item::update($fields, ['id' => $item['id']]);
+ }
+
+ switch ($mailconf['action']) {
+ case 0:
+ Logger::log("Mail: Seen before ".$msg_uid." for ".$mailconf['user'].". Doing nothing.", Logger::DEBUG);
+ break;
+ case 1:
+ Logger::log("Mail: Deleting ".$msg_uid." for ".$mailconf['user']);
+ imap_delete($mbox, $msg_uid, FT_UID);
+ break;
+ case 2:
+ Logger::log("Mail: Mark as seen ".$msg_uid." for ".$mailconf['user']);
+ imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
+ break;
+ case 3:
+ Logger::log("Mail: Moving ".$msg_uid." to ".$mailconf['movetofolder']." for ".$mailconf['user']);
+ imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
+ if ($mailconf['movetofolder'] != "") {
+ imap_mail_move($mbox, $msg_uid, $mailconf['movetofolder'], FT_UID);
+ }
+ break;
+ }
+ continue;
+ }
+
+ // look for a 'references' or an 'in-reply-to' header and try to match with a parent item we have locally.
+ $raw_refs = (property_exists($meta, 'references') ? str_replace("\t", '', $meta->references) : '');
+ if (!trim($raw_refs)) {
+ $raw_refs = (property_exists($meta, 'in_reply_to') ? str_replace("\t", '', $meta->in_reply_to) : '');
+ }
+ $raw_refs = trim($raw_refs); // Don't allow a blank reference in $refs_arr
+
+ if ($raw_refs) {
+ $refs_arr = explode(' ', $raw_refs);
+ if (count($refs_arr)) {
+ for ($x = 0; $x < count($refs_arr); $x ++) {
+ $refs_arr[$x] = Email::msgid2iri(str_replace(['<', '>', ' '],['', '', ''], $refs_arr[$x]));
+ }
+ }
+ $condition = ['uri' => $refs_arr, 'uid' => $importer_uid];
+ $parent = Item::selectFirst(['parent-uri'], $condition);
+ if (DBA::isResult($parent)) {
+ $datarray['parent-uri'] = $parent['parent-uri']; // Set the parent as the top-level item
+ }
+ }
+
+ // Decoding the header
+ $subject = imap_mime_header_decode($meta->subject);
+ $datarray['title'] = "";
+ foreach ($subject as $subpart) {
+ if ($subpart->charset != "default") {
+ $datarray['title'] .= iconv($subpart->charset, 'UTF-8//IGNORE', $subpart->text);
+ } else {
+ $datarray['title'] .= $subpart->text;
+ }
+ }
+ $datarray['title'] = Strings::escapeTags(trim($datarray['title']));
+
+ //$datarray['title'] = Strings::escapeTags(trim($meta->subject));
+ $datarray['created'] = DateTimeFormat::utc($meta->date);
+
+ // Is it a reply?
+ $reply = ((substr(strtolower($datarray['title']), 0, 3) == "re:") ||
+ (substr(strtolower($datarray['title']), 0, 3) == "re-") ||
+ ($raw_refs != ""));
+
+ // Remove Reply-signs in the subject
+ $datarray['title'] = self::RemoveReply($datarray['title']);
+
+ // If it seems to be a reply but a header couldn't be found take the last message with matching subject
+ if (empty($datarray['parent-uri']) && $reply) {
+ $condition = ['title' => $datarray['title'], 'uid' => $importer_uid, 'network' => Protocol::MAIL];
+ $params = ['order' => ['created' => true]];
+ $parent = Item::selectFirst(['parent-uri'], $condition, $params);
+ if (DBA::isResult($parent)) {
+ $datarray['parent-uri'] = $parent['parent-uri'];
+ }
+ }
+
+ if (empty($datarray['parent-uri'])) {
+ $datarray['parent-uri'] = $datarray['uri'];
+ }
+
+ $headers = imap_headerinfo($mbox, $meta->msgno);
+
+ $object = [];
+
+ if (!empty($headers->from)) {
+ $object['from'] = $headers->from;
+ }
+
+ if (!empty($headers->to)) {
+ $object['to'] = $headers->to;
+ }
+
+ if (!empty($headers->reply_to)) {
+ $object['reply_to'] = $headers->reply_to;
+ }
+
+ if (!empty($headers->sender)) {
+ $object['sender'] = $headers->sender;
+ }
+
+ if (!empty($object)) {
+ $datarray['object'] = json_encode($object);
+ }
+
+ $fromname = $frommail = $headers->from[0]->mailbox . '@' . $headers->from[0]->host;
+ if (!empty($headers->from[0]->personal)) {
+ $fromname = $headers->from[0]->personal;
+ }
+
+ $datarray['author-name'] = $fromname;
+ $datarray['author-link'] = "mailto:".$frommail;
+ $datarray['author-avatar'] = $contact['photo'];
+
+ $datarray['owner-name'] = $contact['name'];
+ $datarray['owner-link'] = "mailto:".$contact['addr'];
+ $datarray['owner-avatar'] = $contact['photo'];
+
+ if ($datarray['parent-uri'] === $datarray['uri']) {
+ $datarray['private'] = 1;
+ }
+
+ if (!PConfig::get($importer_uid, 'system', 'allow_public_email_replies')) {
+ $datarray['private'] = 1;
+ $datarray['allow_cid'] = '<' . $contact['id'] . '>';
+ }
+
+ $datarray = Email::getMessage($mbox, $msg_uid, $reply, $datarray);
+ if (empty($datarray['body'])) {
+ Logger::log("Mail: can't fetch msg ".$msg_uid." for ".$mailconf['user']);
+ continue;
+ }
+
+ Logger::log("Mail: Importing ".$msg_uid." for ".$mailconf['user']);
+
+ Item::insert($datarray);
+
+ switch ($mailconf['action']) {
+ case 0:
+ Logger::log("Mail: Seen before ".$msg_uid." for ".$mailconf['user'].". Doing nothing.", Logger::DEBUG);
+ break;
+ case 1:
+ Logger::log("Mail: Deleting ".$msg_uid." for ".$mailconf['user']);
+ imap_delete($mbox, $msg_uid, FT_UID);
+ break;
+ case 2:
+ Logger::log("Mail: Mark as seen ".$msg_uid." for ".$mailconf['user']);
+ imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
+ break;
+ case 3:
+ Logger::log("Mail: Moving ".$msg_uid." to ".$mailconf['movetofolder']." for ".$mailconf['user']);
+ imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
+ if ($mailconf['movetofolder'] != "") {
+ imap_mail_move($mbox, $msg_uid, $mailconf['movetofolder'], FT_UID);
+ }
+ break;
+ }
+ }
+ }
+ } else {
+ Logger::log("Mail: no mails for ".$mailconf['user']);
+ }
+
+ Logger::log("Mail: closing connection for ".$mailconf['user']);
+ imap_close($mbox);
+ }