Exemplo n.º 1
0
function delivery_run(&$argv, &$argc)
{
    global $a, $db;
    if (is_null($a)) {
        $a = new App();
    }
    if (is_null($db)) {
        @(include ".htconfig.php");
        require_once "include/dba.php";
        $db = new dba($db_host, $db_user, $db_pass, $db_data);
        unset($db_host, $db_user, $db_pass, $db_data);
    }
    require_once "include/session.php";
    require_once "include/datetime.php";
    require_once 'include/items.php';
    require_once 'include/bbcode.php';
    require_once 'include/diaspora.php';
    require_once 'include/email.php';
    load_config('config');
    load_config('system');
    load_hooks();
    if ($argc < 3) {
        return;
    }
    $a->set_baseurl(get_config('system', 'url'));
    logger('delivery: invoked: ' . print_r($argv, true), LOGGER_DEBUG);
    $cmd = $argv[1];
    $item_id = intval($argv[2]);
    for ($x = 3; $x < $argc; $x++) {
        $contact_id = intval($argv[$x]);
        // Some other process may have delivered this item already.
        $r = q("select * from deliverq where cmd = '%s' and item = %d and contact = %d limit 1", dbesc($cmd), dbesc($item_id), dbesc($contact_id));
        if (!count($r)) {
            continue;
        }
        $maxsysload = intval(get_config('system', 'maxloadavg'));
        if ($maxsysload < 1) {
            $maxsysload = 50;
        }
        if (function_exists('sys_getloadavg')) {
            $load = sys_getloadavg();
            if (intval($load[0]) > $maxsysload) {
                logger('system: load ' . $load . ' too high. Delivery deferred to next queue run.');
                return;
            }
        }
        // It's ours to deliver. Remove it from the queue.
        q("delete from deliverq where cmd = '%s' and item = %d and contact = %d", dbesc($cmd), dbesc($item_id), dbesc($contact_id));
        if (!$item_id || !$contact_id) {
            continue;
        }
        $expire = false;
        $top_level = false;
        $recipients = array();
        $url_recipients = array();
        $normal_mode = true;
        $recipients[] = $contact_id;
        if ($cmd === 'expire') {
            $normal_mode = false;
            $expire = true;
            $items = q("SELECT * FROM `item` WHERE `uid` = %d AND `wall` = 1 \n\t\t\t\tAND `deleted` = 1 AND `changed` > UTC_TIMESTAMP() - INTERVAL 30 MINUTE", intval($item_id));
            $uid = $item_id;
            $item_id = 0;
            if (!count($items)) {
                continue;
            }
        } else {
            // find ancestors
            $r = q("SELECT * FROM `item` WHERE `id` = %d and visible = 1 and moderated = 0 LIMIT 1", intval($item_id));
            if (!count($r) || !intval($r[0]['parent'])) {
                continue;
            }
            $target_item = $r[0];
            $parent_id = intval($r[0]['parent']);
            $uid = $r[0]['uid'];
            $updated = $r[0]['edited'];
            // POSSIBLE CLEANUP --> The following seems superfluous. We've already checked for "if (! intval($r[0]['parent']))" a few lines up
            if (!$parent_id) {
                continue;
            }
            $items = q("SELECT `item`.*, `sign`.`signed_text`,`sign`.`signature`,`sign`.`signer` \n\t\t\t\tFROM `item` LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id` WHERE `parent` = %d and visible = 1 and moderated = 0 ORDER BY `id` ASC", intval($parent_id));
            if (!count($items)) {
                continue;
            }
            $icontacts = null;
            $contacts_arr = array();
            foreach ($items as $item) {
                if (!in_array($item['contact-id'], $contacts_arr)) {
                    $contacts_arr[] = intval($item['contact-id']);
                }
            }
            if (count($contacts_arr)) {
                $str_contacts = implode(',', $contacts_arr);
                $icontacts = q("SELECT * FROM `contact` \n\t\t\t\t\tWHERE `id` IN ( {$str_contacts} ) ");
            }
            if (!($icontacts && count($icontacts))) {
                continue;
            }
            // avoid race condition with deleting entries
            if ($items[0]['deleted']) {
                foreach ($items as $item) {
                    $item['deleted'] = 1;
                }
            }
            if (count($items) == 1 && $items[0]['uri'] === $items[0]['parent-uri']) {
                logger('delivery: top level post');
                $top_level = true;
            }
        }
        $r = q("SELECT `contact`.*, `user`.`pubkey` AS `upubkey`, `user`.`prvkey` AS `uprvkey`, \n\t\t\t`user`.`timezone`, `user`.`nickname`, `user`.`sprvkey`, `user`.`spubkey`, \n\t\t\t`user`.`page-flags`, `user`.`prvnets`\n\t\t\tFROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid` \n\t\t\tWHERE `contact`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1", intval($uid));
        if (!count($r)) {
            continue;
        }
        $owner = $r[0];
        $walltowall = $top_level && $owner['id'] != $items[0]['contact-id'] ? true : false;
        $public_message = true;
        // fill this in with a single salmon slap if applicable
        $slap = '';
        require_once 'include/group.php';
        $parent = $items[0];
        // This is IMPORTANT!!!!
        // We will only send a "notify owner to relay" or followup message if the referenced post
        // originated on our system by virtue of having our hostname somewhere
        // in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
        // if $parent['wall'] == 1 we will already have the parent message in our array
        // and we will relay the whole lot.
        // expire sends an entire group of expire messages and cannot be forwarded.
        // However the conversation owner will be a part of the conversation and will
        // be notified during this run.
        // Other DFRN conversation members will be alerted during polled updates.
        // Diaspora members currently are not notified of expirations, and other networks have
        // either limited or no ability to process deletions. We should at least fix Diaspora
        // by stringing togther an array of retractions and sending them onward.
        $localhost = $a->get_hostname();
        if (strpos($localhost, ':')) {
            $localhost = substr($localhost, 0, strpos($localhost, ':'));
        }
        /**
         *
         * Be VERY CAREFUL if you make any changes to the following line. Seemingly innocuous changes
         * have been known to cause runaway conditions which affected several servers, along with
         * permissions issues.
         *
         */
        if (!$top_level && $parent['wall'] == 0 && !$expire && stristr($target_item['uri'], $localhost)) {
            logger('relay denied for delivery agent.');
            /* no relay allowed for direct contact delivery */
            continue;
        }
        if (strlen($parent['allow_cid']) || strlen($parent['allow_gid']) || strlen($parent['deny_cid']) || strlen($parent['deny_gid'])) {
            $public_message = false;
            // private recipients, not public
        }
        $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `blocked` = 0 AND `pending` = 0", intval($contact_id));
        if (count($r)) {
            $contact = $r[0];
        }
        $hubxml = feed_hublinks();
        logger('notifier: slaps: ' . print_r($slaps, true), LOGGER_DATA);
        require_once 'include/salmon.php';
        if ($contact['self']) {
            continue;
        }
        $deliver_status = 0;
        switch ($contact['network']) {
            case NETWORK_DFRN:
                logger('notifier: dfrndelivery: ' . $contact['name']);
                $feed_template = get_markup_template('atom_feed.tpl');
                $mail_template = get_markup_template('atom_mail.tpl');
                $atom = '';
                $birthday = feed_birthday($owner['uid'], $owner['timezone']);
                if (strlen($birthday)) {
                    $birthday = '<dfrn:birthday>' . xmlify($birthday) . '</dfrn:birthday>';
                }
                $atom .= replace_macros($feed_template, array('$version' => xmlify(FRIENDICA_VERSION), '$feed_id' => xmlify($a->get_baseurl() . '/profile/' . $owner['nickname']), '$feed_title' => xmlify($owner['name']), '$feed_updated' => xmlify(datetime_convert('UTC', 'UTC', $updated . '+00:00', ATOM_TIME)), '$hub' => $hubxml, '$salmon' => '', '$name' => xmlify($owner['name']), '$profile_page' => xmlify($owner['url']), '$photo' => xmlify($owner['photo']), '$thumb' => xmlify($owner['thumb']), '$picdate' => xmlify(datetime_convert('UTC', 'UTC', $owner['avatar-date'] . '+00:00', ATOM_TIME)), '$uridate' => xmlify(datetime_convert('UTC', 'UTC', $owner['uri-date'] . '+00:00', ATOM_TIME)), '$namdate' => xmlify(datetime_convert('UTC', 'UTC', $owner['name-date'] . '+00:00', ATOM_TIME)), '$birthday' => $birthday, '$community' => $owner['page-flags'] == PAGE_COMMUNITY ? '<dfrn:community>1</dfrn:community>' : ''));
                foreach ($items as $item) {
                    if (!$item['parent']) {
                        continue;
                    }
                    // private emails may be in included in public conversations. Filter them.
                    if ($public_message && $item['private'] == 1) {
                        continue;
                    }
                    $item_contact = get_item_contact($item, $icontacts);
                    if (!$item_contact) {
                        continue;
                    }
                    if ($normal_mode) {
                        if ($item_id == $item['id'] || $item['id'] == $item['parent']) {
                            $atom .= atom_entry($item, 'text', null, $owner, true, $top_level ? $contact['id'] : 0);
                        }
                    } else {
                        $atom .= atom_entry($item, 'text', null, $owner, true);
                    }
                }
                $atom .= '</feed>' . "\r\n";
                logger('notifier: ' . $atom, LOGGER_DATA);
                $basepath = implode('/', array_slice(explode('/', $contact['url']), 0, 3));
                // perform local delivery if we are on the same site
                if (link_compare($basepath, $a->get_baseurl())) {
                    $nickname = basename($contact['url']);
                    if ($contact['issued-id']) {
                        $sql_extra = sprintf(" AND `dfrn-id` = '%s' ", dbesc($contact['issued-id']));
                    } else {
                        $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($contact['dfrn-id']));
                    }
                    $x = q("SELECT\t`contact`.*, `contact`.`uid` AS `importer_uid`,\n\t\t\t\t\t\t`contact`.`pubkey` AS `cpubkey`,\n\t\t\t\t\t\t`contact`.`prvkey` AS `cprvkey`,\n\t\t\t\t\t\t`contact`.`thumb` AS `thumb`,\n\t\t\t\t\t\t`contact`.`url` as `url`,\n\t\t\t\t\t\t`contact`.`name` as `senderName`,\n\t\t\t\t\t\t`user`.*\n\t\t\t\t\t\tFROM `contact`\n\t\t\t\t\t\tINNER JOIN `user` ON `contact`.`uid` = `user`.`uid`\n\t\t\t\t\t\tWHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0\n\t\t\t\t\t\tAND `contact`.`network` = '%s' AND `user`.`nickname` = '%s'\n\t\t\t\t\t\t{$sql_extra}\n\t\t\t\t\t\tAND `user`.`account_expired` = 0 AND `user`.`account_removed` = 0 LIMIT 1", dbesc(NETWORK_DFRN), dbesc($nickname));
                    if ($x && count($x)) {
                        $write_flag = $x[0]['rel'] && $x[0]['rel'] != CONTACT_IS_SHARING ? true : false;
                        if (($owner['page-flags'] == PAGE_COMMUNITY || $write_flag) && !$x[0]['writable']) {
                            q("update contact set writable = 1 where id = %d", intval($x[0]['id']));
                            $x[0]['writable'] = 1;
                        }
                        $ssl_policy = get_config('system', 'ssl_policy');
                        fix_contact_ssl_policy($x[0], $ssl_policy);
                        // If we are setup as a soapbox we aren't accepting input from this person
                        if ($x[0]['page-flags'] == PAGE_SOAPBOX) {
                            break;
                        }
                        require_once 'library/simplepie/simplepie.inc';
                        logger('mod-delivery: local delivery');
                        local_delivery($x[0], $atom);
                        break;
                    }
                }
                if (!was_recently_delayed($contact['id'])) {
                    $deliver_status = dfrn_deliver($owner, $contact, $atom);
                } else {
                    $deliver_status = -1;
                }
                logger('notifier: dfrn_delivery returns ' . $deliver_status);
                if ($deliver_status == -1) {
                    logger('notifier: delivery failed: queuing message');
                    add_to_queue($contact['id'], NETWORK_DFRN, $atom);
                }
                break;
            case NETWORK_OSTATUS:
                // Do not send to otatus if we are not configured to send to public networks
                if ($owner['prvnets']) {
                    break;
                }
                if (get_config('system', 'ostatus_disabled') || get_config('system', 'dfrn_only')) {
                    break;
                }
                // only send salmon if public - e.g. if it's ok to notify
                // a public hub, it's ok to send a salmon
                if ($public_message && !$expire) {
                    $slaps = array();
                    foreach ($items as $item) {
                        if (!$item['parent']) {
                            continue;
                        }
                        // private emails may be in included in public conversations. Filter them.
                        if ($public_message && $item['private'] == 1) {
                            continue;
                        }
                        $item_contact = get_item_contact($item, $icontacts);
                        if (!$item_contact) {
                            continue;
                        }
                        if ($top_level && $public_message && $item['author-link'] === $item['owner-link'] && !$expire) {
                            $slaps[] = atom_entry($item, 'html', null, $owner, true);
                        }
                    }
                    logger('notifier: slapdelivery: ' . $contact['name']);
                    foreach ($slaps as $slappy) {
                        if ($contact['notify']) {
                            if (!was_recently_delayed($contact['id'])) {
                                $deliver_status = slapper($owner, $contact['notify'], $slappy);
                            } else {
                                $deliver_status = -1;
                            }
                            if ($deliver_status == -1) {
                                // queue message for redelivery
                                add_to_queue($contact['id'], NETWORK_OSTATUS, $slappy);
                            }
                        }
                    }
                }
                break;
            case NETWORK_MAIL:
            case NETWORK_MAIL2:
                if (get_config('system', 'dfrn_only')) {
                    break;
                }
                // WARNING: does not currently convert to RFC2047 header encodings, etc.
                $addr = $contact['addr'];
                if (!strlen($addr)) {
                    break;
                }
                if ($cmd === 'wall-new' || $cmd === 'comment-new') {
                    $it = null;
                    if ($cmd === 'wall-new') {
                        $it = $items[0];
                    } else {
                        $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1", intval($argv[2]), intval($uid));
                        if (count($r)) {
                            $it = $r[0];
                        }
                    }
                    if (!$it) {
                        break;
                    }
                    $local_user = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($uid));
                    if (!count($local_user)) {
                        break;
                    }
                    $reply_to = '';
                    $r1 = q("SELECT * FROM `mailacct` WHERE `uid` = %d LIMIT 1", intval($uid));
                    if ($r1 && $r1[0]['reply_to']) {
                        $reply_to = $r1[0]['reply_to'];
                    }
                    $subject = $it['title'] ? email_header_encode($it['title'], 'UTF-8') : t("(no subject)");
                    // only expose our real email address to true friends
                    if ($contact['rel'] == CONTACT_IS_FRIEND && !$contact['blocked']) {
                        if ($reply_to) {
                            $headers = 'From: ' . email_header_encode($local_user[0]['username'], 'UTF-8') . ' <' . $reply_to . '>' . "\n";
                            $headers .= 'Sender: ' . $local_user[0]['email'] . "\n";
                        } else {
                            $headers = 'From: ' . email_header_encode($local_user[0]['username'], 'UTF-8') . ' <' . $local_user[0]['email'] . '>' . "\n";
                        }
                    } else {
                        $headers = 'From: ' . email_header_encode($local_user[0]['username'], 'UTF-8') . ' <' . t('noreply') . '@' . $a->get_hostname() . '>' . "\n";
                    }
                    //if($reply_to)
                    //	$headers .= 'Reply-to: ' . $reply_to . "\n";
                    $headers .= 'Message-Id: <' . iri2msgid($it['uri']) . '>' . "\n";
                    //logger("Mail: uri: ".$it['uri']." parent-uri ".$it['parent-uri'], LOGGER_DEBUG);
                    //logger("Mail: Data: ".print_r($it, true), LOGGER_DEBUG);
                    //logger("Mail: Data: ".print_r($it, true), LOGGER_DATA);
                    if ($it['uri'] !== $it['parent-uri']) {
                        $headers .= "References: <" . iri2msgid($it["parent-uri"]) . ">";
                        // If Threading is enabled, write down the correct parent
                        if ($it["thr-parent"] != "" and $it["thr-parent"] != $it["parent-uri"]) {
                            $headers .= " <" . iri2msgid($it["thr-parent"]) . ">";
                        }
                        $headers .= "\n";
                        if (!$it['title']) {
                            $r = q("SELECT `title` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1", dbesc($it['parent-uri']), intval($uid));
                            if (count($r) and $r[0]['title'] != '') {
                                $subject = $r[0]['title'];
                            } else {
                                $r = q("SELECT `title` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d LIMIT 1", dbesc($it['parent-uri']), intval($uid));
                                if (count($r) and $r[0]['title'] != '') {
                                    $subject = $r[0]['title'];
                                }
                            }
                        }
                        if (strncasecmp($subject, 'RE:', 3)) {
                            $subject = 'Re: ' . $subject;
                        }
                    }
                    email_send($addr, $subject, $headers, $it);
                }
                break;
            case NETWORK_DIASPORA:
                if ($public_message) {
                    $loc = 'public batch ' . $contact['batch'];
                } else {
                    $loc = $contact['name'];
                }
                logger('delivery: diaspora batch deliver: ' . $loc);
                if (get_config('system', 'dfrn_only') || !get_config('system', 'diaspora_enabled') || !$normal_mode) {
                    break;
                }
                if (!$contact['pubkey'] && !$public_message) {
                    break;
                }
                if ($target_item['verb'] === ACTIVITY_DISLIKE) {
                    // unsupported
                    break;
                } elseif ($target_item['deleted'] && $target_item['uri'] === $target_item['parent-uri']) {
                    // top-level retraction
                    logger('delivery: diaspora retract: ' . $loc);
                    diaspora_send_retraction($target_item, $owner, $contact, $public_message);
                    break;
                } elseif ($target_item['uri'] !== $target_item['parent-uri']) {
                    // we are the relay - send comments, likes and relayable_retractions to our conversants
                    logger('delivery: diaspora relay: ' . $loc);
                    diaspora_send_relay($target_item, $owner, $contact, $public_message);
                    break;
                } elseif ($top_level && !$walltowall) {
                    // currently no workable solution for sending walltowall
                    logger('delivery: diaspora status: ' . $loc);
                    diaspora_send_status($target_item, $owner, $contact, $public_message);
                    break;
                }
                logger('delivery: diaspora unknown mode: ' . $contact['name']);
                break;
            case NETWORK_FEED:
            case NETWORK_FACEBOOK:
                if (get_config('system', 'dfrn_only')) {
                    break;
                }
            case NETWORK_PUMPIO:
                if (get_config('system', 'dfrn_only')) {
                    break;
                }
            default:
                break;
        }
    }
    return;
}
Exemplo n.º 2
0
function diaspora_transmit($owner, $contact, $slap, $public_batch, $queue_run = false)
{
    $enabled = intval(get_config('system', 'diaspora_enabled'));
    if (!$enabled) {
        return 200;
    }
    $a = get_app();
    $logid = random_string(4);
    $dest_url = $public_batch ? $contact['batch'] : $contact['notify'];
    if (!$dest_url) {
        logger('diaspora_transmit: no url for contact: ' . $contact['id'] . ' batch mode =' . $public_batch);
        return 0;
    }
    logger('diaspora_transmit: ' . $logid . ' ' . $dest_url);
    if (!$queue_run && was_recently_delayed($contact['id'])) {
        $return_code = 0;
    } else {
        if (!intval(get_config('system', 'diaspora_test'))) {
            post_url($dest_url . '/', $slap);
            $return_code = $a->get_curl_code();
        } else {
            logger('diaspora_transmit: test_mode');
            return 200;
        }
    }
    logger('diaspora_transmit: ' . $logid . ' returns: ' . $return_code);
    if (!$return_code || $return_code == 503 && stristr($a->get_curl_headers(), 'retry-after')) {
        logger('diaspora_transmit: queue message');
        $r = q("SELECT id from queue where cid = %d and network = '%s' and content = '%s' and batch = %d limit 1", intval($contact['id']), dbesc(NETWORK_DIASPORA), dbesc($slap), intval($public_batch));
        if (count($r)) {
            logger('diaspora_transmit: add_to_queue ignored - identical item already in queue');
        } else {
            // queue message for redelivery
            add_to_queue($contact['id'], NETWORK_DIASPORA, $slap, $public_batch);
        }
    }
    return $return_code ? $return_code : -1;
}
Exemplo n.º 3
0
function onepoll_run($argv, $argc)
{
    global $a, $db;
    if (is_null($a)) {
        $a = new App();
    }
    if (is_null($db)) {
        @(include ".htconfig.php");
        require_once "dba.php";
        $db = new dba($db_host, $db_user, $db_pass, $db_data);
        unset($db_host, $db_user, $db_pass, $db_data);
    }
    require_once 'include/session.php';
    require_once 'include/datetime.php';
    require_once 'library/simplepie/simplepie.inc';
    require_once 'include/items.php';
    require_once 'include/Contact.php';
    require_once 'include/email.php';
    require_once 'include/socgraph.php';
    require_once 'include/pidfile.php';
    require_once 'include/queue_fn.php';
    load_config('config');
    load_config('system');
    $a->set_baseurl(get_config('system', 'url'));
    load_hooks();
    logger('onepoll: start');
    $abandon_days = intval(get_config('system', 'account_abandon_days'));
    if ($abandon_days < 1) {
        $abandon_days = 0;
    }
    $manual_id = 0;
    $generation = 0;
    $hub_update = false;
    $force = false;
    $restart = false;
    if ($argc > 1 && intval($argv[1])) {
        $contact_id = intval($argv[1]);
    }
    if (!$contact_id) {
        logger('onepoll: no contact');
        return;
    }
    if (was_recently_delayed($contact_id)) {
        return;
    }
    $d = datetime_convert();
    // Only poll from those with suitable relationships,
    // and which have a polling address and ignore Diaspora since
    // we are unable to match those posts with a Diaspora GUID and prevent duplicates.
    $abandon_sql = $abandon_days ? sprintf(" AND `user`.`login_date` > UTC_TIMESTAMP() - INTERVAL %d DAY ", intval($abandon_days)) : '';
    $contacts = q("SELECT `contact`.* FROM `contact` \n\t\tWHERE ( `rel` = %d OR `rel` = %d ) AND `poll` != ''\n\t\tAND NOT `network` IN ( '%s', '%s' )\n\t\tAND `contact`.`id` = %d\n\t\tAND `self` = 0 AND `contact`.`blocked` = 0 AND `contact`.`readonly` = 0 \n\t\tAND `contact`.`archive` = 0 LIMIT 1", intval(CONTACT_IS_SHARING), intval(CONTACT_IS_FRIEND), dbesc(NETWORK_DIASPORA), dbesc(NETWORK_FACEBOOK), intval($contact_id));
    if (!count($contacts)) {
        return;
    }
    $contact = $contacts[0];
    $xml = false;
    $t = $contact['last-update'];
    if ($contact['subhub']) {
        $interval = get_config('system', 'pushpoll_frequency');
        $contact['priority'] = $interval !== false ? intval($interval) : 3;
        $hub_update = false;
        if (datetime_convert('UTC', 'UTC', 'now') > datetime_convert('UTC', 'UTC', $t . " + 1 day")) {
            $hub_update = true;
        }
    } else {
        $hub_update = false;
    }
    $importer_uid = $contact['uid'];
    $r = q("SELECT `contact`.*, `user`.`page-flags` FROM `contact` LEFT JOIN `user` on `contact`.`uid` = `user`.`uid` WHERE `user`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1", intval($importer_uid));
    if (!count($r)) {
        return;
    }
    $importer = $r[0];
    logger("onepoll: poll: ({$contact['id']}) IMPORTER: {$importer['name']}, CONTACT: {$contact['name']}");
    $last_update = $contact['last-update'] === '0000-00-00 00:00:00' ? datetime_convert('UTC', 'UTC', 'now - 7 days', ATOM_TIME) : datetime_convert('UTC', 'UTC', $contact['last-update'], ATOM_TIME);
    if ($contact['network'] === NETWORK_DFRN) {
        $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';
        $url = $contact['poll'] . '?dfrn_id=' . $idtosend . '&dfrn_version=' . DFRN_PROTOCOL_VERSION . '&type=data&last_update=' . $last_update . '&perm=' . $perm;
        $handshake_xml = fetch_url($url);
        logger('onepoll: handshake with url ' . $url . ' returns xml: ' . $handshake_xml, LOGGER_DATA);
        if (!$handshake_xml) {
            logger("poller: {$url} appears to be dead - marking for death ");
            // dead connection - might be a transient event, or this might
            // mean the software was uninstalled or the domain expired.
            // Will keep trying for one month.
            mark_for_death($contact);
            // set the last-update so we don't keep polling
            $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1", dbesc(datetime_convert()), intval($contact['id']));
            return;
        }
        if (!strstr($handshake_xml, '<?xml')) {
            logger('poller: response from ' . $url . ' did not contain XML.');
            $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1", dbesc(datetime_convert()), intval($contact['id']));
            return;
        }
        $res = parse_xml_string($handshake_xml);
        if (intval($res->status) == 1) {
            logger("poller: {$url} replied status 1 - marking for death ");
            // we may not be friends anymore. Will keep trying for one month.
            // set the last-update so we don't keep polling
            $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1", dbesc(datetime_convert()), intval($contact['id']));
            mark_for_death($contact);
        } else {
            if ($contact['term-date'] != '0000-00-00 00:00:00') {
                logger("poller: {$url} back from the dead - removing mark for death");
                unmark_for_death($contact);
            }
        }
        if (intval($res->status) != 0 || !strlen($res->challenge) || !strlen($res->dfrn_id)) {
            return;
        }
        if ((double) $res->dfrn_version > 2.21 && $contact['poco'] == '') {
            q("update contact set poco = '%s' where id = %d limit 1", dbesc(str_replace('/profile/', '/poco/', $contact['url'])), intval($contact['id']));
        }
        $postvars = array();
        $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);
        }
        if ($final_dfrn_id != $orig_id) {
            logger('poller: ID did not decode: ' . $contact['id'] . ' orig: ' . $orig_id . ' final: ' . $final_dfrn_id);
            // did not decode properly - cannot trust this site
            return;
        }
        $postvars['dfrn_id'] = $idtosend;
        $postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
        $postvars['perm'] = 'rw';
        $xml = post_url($contact['poll'], $postvars);
    } elseif ($contact['network'] === NETWORK_OSTATUS || $contact['network'] === NETWORK_DIASPORA || $contact['network'] === NETWORK_FEED) {
        // 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_IS_FOLLOWER || $contact['rel'] == CONTACT_IS_FRIEND) ? 1 : 0;
        if ($stat_writeable != $contact['writable']) {
            q("UPDATE `contact` SET `writable` = %d WHERE `id` = %d LIMIT 1", intval($stat_writeable), intval($contact['id']));
        }
        // Are we allowed to import from this person?
        if ($contact['rel'] == CONTACT_IS_FOLLOWER || $contact['blocked'] || $contact['readonly']) {
            return;
        }
        $xml = fetch_url($contact['poll']);
    } elseif ($contact['network'] === NETWORK_MAIL || $contact['network'] === NETWORK_MAIL2) {
        logger("onepoll: mail: Fetching", LOGGER_DEBUG);
        $mail_disabled = function_exists('imap_open') && !get_config('system', 'imap_disabled') ? 0 : 1;
        if ($mail_disabled) {
            return;
        }
        logger("onepoll: Mail: Enabled", LOGGER_DEBUG);
        $mbox = null;
        $x = q("SELECT `prvkey` FROM `user` WHERE `uid` = %d LIMIT 1", intval($importer_uid));
        $mailconf = q("SELECT * FROM `mailacct` WHERE `server` != '' AND `uid` = %d LIMIT 1", intval($importer_uid));
        if (count($x) && count($mailconf)) {
            $mailbox = construct_mailbox_name($mailconf[0]);
            $password = '';
            openssl_private_decrypt(hex2bin($mailconf[0]['pass']), $password, $x[0]['prvkey']);
            $mbox = email_connect($mailbox, $mailconf[0]['user'], $password);
            unset($password);
            logger("Mail: Connect");
            if ($mbox) {
                q("UPDATE `mailacct` SET `last_check` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1", dbesc(datetime_convert()), intval($mailconf[0]['id']), intval($importer_uid));
            }
        }
        if ($mbox) {
            $msgs = email_poll($mbox, $contact['addr']);
            if (count($msgs)) {
                logger("Mail: Parsing " . count($msgs) . " mails.", LOGGER_DEBUG);
                foreach ($msgs as $msg_uid) {
                    logger("Mail: Parsing mail " . $msg_uid, LOGGER_DATA);
                    $datarray = array();
                    $meta = email_msg_meta($mbox, $msg_uid);
                    $headers = email_msg_headers($mbox, $msg_uid);
                    // look for a 'references' header and try and match with a parent item we have locally.
                    $raw_refs = x($headers, 'references') ? str_replace("\t", '', $headers['references']) : '';
                    $datarray['uri'] = msgid2iri(trim($meta->message_id, '<>'));
                    if ($raw_refs) {
                        $refs_arr = explode(' ', $raw_refs);
                        if (count($refs_arr)) {
                            for ($x = 0; $x < count($refs_arr); $x++) {
                                $refs_arr[$x] = "'" . msgid2iri(str_replace(array('<', '>', ' '), array('', '', ''), dbesc($refs_arr[$x]))) . "'";
                            }
                        }
                        $qstr = implode(',', $refs_arr);
                        $r = q("SELECT `uri` , `parent-uri` FROM `item` WHERE `uri` IN ( {$qstr} ) AND `uid` = %d LIMIT 1", intval($importer_uid));
                        if (count($r)) {
                            $datarray['parent-uri'] = $r[0]['uri'];
                        }
                    }
                    if (!x($datarray, 'parent-uri')) {
                        $datarray['parent-uri'] = $datarray['uri'];
                    }
                    // Have we seen it before?
                    $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `uri` = '%s' LIMIT 1", intval($importer_uid), dbesc($datarray['uri']));
                    if (count($r)) {
                        //						logger("Mail: Seen before ".$msg_uid);
                        if ($meta->deleted && !$r[0]['deleted']) {
                            q("UPDATE `item` SET `deleted` = 1, `changed` = '%s' WHERE `id` = %d LIMIT 1", dbesc(datetime_convert()), intval($r[0]['id']));
                        }
                        switch ($mailconf[0]['action']) {
                            case 0:
                                break;
                            case 1:
                                logger("Mail: Deleting " . $msg_uid);
                                imap_delete($mbox, $msg_uid, FT_UID);
                                break;
                            case 2:
                                logger("Mail: Mark as seen " . $msg_uid);
                                imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
                                break;
                            case 3:
                                logger("Mail: Moving " . $msg_uid . " to " . $mailconf[0]['movetofolder']);
                                imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
                                if ($mailconf[0]['movetofolder'] != "") {
                                    imap_mail_move($mbox, $msg_uid, $mailconf[0]['movetofolder'], FT_UID);
                                }
                                break;
                        }
                        continue;
                    }
                    // 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;
                        }
                    }
                    $datarray['title'] = notags(trim($datarray['title']));
                    //$datarray['title'] = notags(trim($meta->subject));
                    $datarray['created'] = datetime_convert('UTC', 'UTC', $meta->date);
                    // Is it  reply?
                    $reply = (substr(strtolower($datarray['title']), 0, 3) == "re:" or substr(strtolower($datarray['title']), 0, 3) == "re-" or raw_refs != "");
                    $r = email_get_msg($mbox, $msg_uid, $reply);
                    if (!$r) {
                        logger("Mail: can't fetch msg " . $msg_uid);
                        continue;
                    }
                    $datarray['body'] = escape_tags($r['body']);
                    logger("Mail: Importing " . $msg_uid);
                    // some mailing lists have the original author as 'from' - add this sender info to msg body.
                    // todo: adding a gravatar for the original author would be cool
                    if (!stristr($meta->from, $contact['addr'])) {
                        $from = imap_mime_header_decode($meta->from);
                        $fromdecoded = "";
                        foreach ($from as $frompart) {
                            if ($frompart->charset != "default") {
                                $fromdecoded .= iconv($frompart->charset, 'UTF-8//IGNORE', $frompart->text);
                            } else {
                                $fromdecoded .= $frompart->text;
                            }
                        }
                        $datarray['body'] = "[b]" . t('From: ') . escape_tags($fromdecoded) . "[/b]\n\n" . $datarray['body'];
                    }
                    $datarray['uid'] = $importer_uid;
                    $datarray['contact-id'] = $contact['id'];
                    if ($datarray['parent-uri'] === $datarray['uri']) {
                        $datarray['private'] = 1;
                    }
                    if ($contact['network'] === NETWORK_MAIL && !get_pconfig($importer_uid, 'system', 'allow_public_email_replies')) {
                        $datarray['private'] = 1;
                        $datarray['allow_cid'] = '<' . $contact['id'] . '>';
                    }
                    $datarray['author-name'] = $contact['name'];
                    $datarray['author-link'] = 'mailbox';
                    $datarray['author-avatar'] = $contact['photo'];
                    $stored_item = item_store($datarray);
                    q("UPDATE `item` SET `last-child` = 0 WHERE `parent-uri` = '%s' AND `uid` = %d", dbesc($datarray['parent-uri']), intval($importer_uid));
                    q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1", intval($stored_item));
                    switch ($mailconf[0]['action']) {
                        case 0:
                            break;
                        case 1:
                            logger("Mail: Deleting " . $msg_uid);
                            imap_delete($mbox, $msg_uid, FT_UID);
                            break;
                        case 2:
                            logger("Mail: Mark as seen " . $msg_uid);
                            imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
                            break;
                        case 3:
                            logger("Mail: Moving " . $msg_uid . " to " . $mailconf[0]['movetofolder']);
                            imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
                            if ($mailconf[0]['movetofolder'] != "") {
                                imap_mail_move($mbox, $msg_uid, $mailconf[0]['movetofolder'], FT_UID);
                            }
                            break;
                    }
                }
            }
            imap_close($mbox);
        }
    } elseif ($contact['network'] === NETWORK_FACEBOOK) {
        // This is picked up by the Facebook plugin on a cron hook.
        // Ignored here.
    }
    if ($xml) {
        logger('poller: received xml : ' . $xml, LOGGER_DATA);
        if (!strstr($xml, '<?xml') && !strstr($xml, '<rss')) {
            logger('poller: post_handshake: response from ' . $url . ' did not contain XML.');
            $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1", dbesc(datetime_convert()), intval($contact['id']));
            return;
        }
        consume_feed($xml, $importer, $contact, $hub, 1, 1);
        // do it twice. Ensures that children of parents which may be later in the stream aren't tossed
        consume_feed($xml, $importer, $contact, $hub, 1, 2);
        $hubmode = 'subscribe';
        if ($contact['network'] === NETWORK_DFRN || $contact['blocked'] || $contact['readonly']) {
            $hubmode = 'unsubscribe';
        }
        if (strlen($hub) && $hub_update && $contact['rel'] != CONTACT_IS_FOLLOWER) {
            logger('poller: hub ' . $hubmode . ' : ' . $hub . ' contact name : ' . $contact['name'] . ' local user : '******'name']);
            $hubs = explode(',', $hub);
            if (count($hubs)) {
                foreach ($hubs as $h) {
                    $h = trim($h);
                    if (!strlen($h)) {
                        continue;
                    }
                    subscribe_to_hub($h, $importer, $contact, $hubmode);
                }
            }
        }
    }
    $updated = datetime_convert();
    $r = q("UPDATE `contact` SET `last-update` = '%s', `success_update` = '%s' WHERE `id` = %d LIMIT 1", dbesc($updated), dbesc($updated), intval($contact['id']));
    // load current friends if possible.
    if ($contact['poco']) {
        $r = q("SELECT count(*) as total from glink \n\t\t\twhere `cid` = %d and updated > UTC_TIMESTAMP() - INTERVAL 1 DAY", intval($contact['id']));
    }
    if (count($r)) {
        if (!$r[0]['total']) {
            poco_load($contact['id'], $importer_uid, 0, $contact['poco']);
        }
    }
    return;
}