Example #1
0
function poller_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';
    load_config('config');
    load_config('system');
    $a->set_baseurl(get_config('system', 'url'));
    load_hooks();
    logger('poller: start');
    // run queue delivery process in the background
    proc_run('php', "include/queue.php");
    // expire any expired accounts
    q("UPDATE user SET `account_expired` = 1 where `account_expired` = 0 \n\t\tAND `account_expires_on` != '0000-00-00 00:00:00' \n\t\tAND `account_expires_on` < UTC_TIMESTAMP() ");
    $abandon_days = intval(get_config('system', 'account_abandon_days'));
    if ($abandon_days < 1) {
        $abandon_days = 0;
    }
    // once daily run birthday_updates and then expire in background
    $d1 = get_config('system', 'last_expire_day');
    $d2 = intval(datetime_convert('UTC', 'UTC', 'now', 'd'));
    if ($d2 != intval($d1)) {
        update_contact_birthdays();
        update_suggestions();
        set_config('system', 'last_expire_day', $d2);
        proc_run('php', 'include/expire.php');
    }
    // clear old cache
    Cache::clear();
    $manual_id = 0;
    $generation = 0;
    $hub_update = false;
    $force = false;
    $restart = false;
    if ($argc > 1 && $argv[1] == 'force') {
        $force = true;
    }
    if ($argc > 1 && $argv[1] == 'restart') {
        $restart = true;
        $generation = intval($argv[2]);
        if (!$generation) {
            killme();
        }
    }
    if ($argc > 1 && intval($argv[1])) {
        $manual_id = intval($argv[1]);
        $force = true;
    }
    $sql_extra = $manual_id ? " AND `id` = {$manual_id} " : "";
    reload_plugins();
    $d = datetime_convert();
    if (!$restart) {
        proc_run('php', 'include/cronhooks.php');
    }
    // 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)) : '';
    $contacts = q("SELECT `contact`.`id` FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid` \n\t\tWHERE ( `rel` = %d OR `rel` = %d ) AND `poll` != ''\n\t\tAND NOT `network` IN ( '%s', '%s' )\n\t\t{$sql_extra} \n\t\tAND `self` = 0 AND `contact`.`blocked` = 0 AND `contact`.`readonly` = 0 \n\t\tAND `user`.`account_expired` = 0 {$abandon_sql} ORDER BY RAND()", intval(CONTACT_IS_SHARING), intval(CONTACT_IS_FRIEND), dbesc(NETWORK_DIASPORA), dbesc(NETWORK_FACEBOOK));
    if (!count($contacts)) {
        return;
    }
    foreach ($contacts as $c) {
        $res = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1", intval($c['id']));
        if (!$res || !count($res)) {
            continue;
        }
        foreach ($res as $contact) {
            $xml = false;
            if ($manual_id) {
                $contact['last-update'] = '0000-00-00 00:00:00';
            }
            if ($contact['network'] === NETWORK_DFRN || $contact['network'] === NETWORK_OSTATUS) {
                $contact['priority'] = 2;
            }
            if ($contact['priority'] || $contact['subhub']) {
                $hub_update = true;
                $update = false;
                $t = $contact['last-update'];
                // We should be getting everything via a hub. But just to be sure, let's check once a day.
                // (You can make this more or less frequent if desired by setting 'pushpoll_frequency' appropriately)
                // This also lets us update our subscription to the hub, and add or replace hubs in case it
                // changed. We will only update hubs once a day, regardless of 'pushpoll_frequency'.
                if ($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") || $force) {
                        $hub_update = true;
                    }
                } else {
                    $hub_update = false;
                }
                /**
                 * Based on $contact['priority'], should we poll this site now? Or later?
                 */
                switch ($contact['priority']) {
                    case 5:
                        if (datetime_convert('UTC', 'UTC', 'now') > datetime_convert('UTC', 'UTC', $t . " + 1 month")) {
                            $update = true;
                        }
                        break;
                    case 4:
                        if (datetime_convert('UTC', 'UTC', 'now') > datetime_convert('UTC', 'UTC', $t . " + 1 week")) {
                            $update = true;
                        }
                        break;
                    case 3:
                        if (datetime_convert('UTC', 'UTC', 'now') > datetime_convert('UTC', 'UTC', $t . " + 1 day")) {
                            $update = true;
                        }
                        break;
                    case 2:
                        if (datetime_convert('UTC', 'UTC', 'now') > datetime_convert('UTC', 'UTC', $t . " + 12 hour")) {
                            $update = true;
                        }
                        break;
                    case 1:
                    default:
                        if (datetime_convert('UTC', 'UTC', 'now') > datetime_convert('UTC', 'UTC', $t . " + 1 hour")) {
                            $update = true;
                        }
                        break;
                }
                if (!$update && !$force) {
                    continue;
                }
            }
            // Check to see if we are running out of memory - if so spawn a new process and kill this one
            $avail_memory = return_bytes(ini_get('memory_limit'));
            $memused = memory_get_peak_usage(true);
            if (intval($avail_memory)) {
                if ($memused / $avail_memory > 0.95) {
                    if ($generation + 1 > 10) {
                        logger('poller: maximum number of spawns exceeded. Terminating.');
                        killme();
                    }
                    logger('poller: memory exceeded. ' . $memused . ' bytes used. Spawning new poll.');
                    proc_run('php', 'include/poller.php', 'restart', (string) $generation + 1);
                    killme();
                }
            }
            $importer_uid = $contact['uid'];
            $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1", intval($importer_uid));
            if (!count($r)) {
                continue;
            }
            $importer = $r[0];
            logger("poller: poll: ({$contact['id']}) IMPORTER: {$importer['name']}, CONTACT: {$contact['name']}");
            $last_update = $contact['last-update'] === '0000-00-00 00:00:00' ? datetime_convert('UTC', 'UTC', 'now - 30 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('poller: 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']));
                    continue;
                }
                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']));
                    continue;
                }
                $res = parse_xml_string($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)) {
                    continue;
                }
                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
                    continue;
                }
                $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 Friendika 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']) {
                    continue;
                }
                $xml = fetch_url($contact['poll']);
            } elseif ($contact['network'] === NETWORK_MAIL || $contact['network'] === NETWORK_MAIL2) {
                $mail_disabled = function_exists('imap_open') && !get_config('system', 'imap_disabled') ? 0 : 1;
                if ($mail_disabled) {
                    continue;
                }
                $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);
                    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)) {
                        foreach ($msgs as $msg_uid) {
                            $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']) : '';
                            $datarray['uri'] = trim($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] = "'" . 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)) {
                                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']));
                                }
                                continue;
                            }
                            $datarray['title'] = notags(trim($meta->subject));
                            $datarray['created'] = datetime_convert('UTC', 'UTC', $meta->date);
                            $r = email_get_msg($mbox, $msg_uid);
                            if (!$r) {
                                continue;
                            }
                            $datarray['body'] = escape_tags($r['body']);
                            // 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'])) {
                                $datarray['body'] = t('From: ') . escape_tags($meta->from) . "\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($stored_item));
                        }
                    }
                    imap_close($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')) {
                    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']));
                    continue;
                }
                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']) {
                $r = q("SELECT count(*) as total from glink \n\t\t\t\t\twhere `cid` = %d and updated > UTC_TIMESTAMP() - INTERVAL 1 DAY", intval($contact['id']));
            }
            if (count($r)) {
                if (!$r[0]['total']) {
                    poco_load($contact['id'], $importer_uid, $contact['poco']);
                }
            }
            // loop - next contact
        }
    }
    return;
}
Example #2
0
function onepoll_run(&$argv, &$argc)
{
    global $a, $db;
    if (is_null($a)) {
        $a = new App();
    }
    if (is_null($db)) {
        @(include ".htconfig.php");
        require_once "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 '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');
    $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;
    }
    $lockpath = get_lockpath();
    if ($lockpath != '') {
        $pidfile = new pidfile($lockpath, 'onepoll' . $contact_id);
        if ($pidfile->is_already_running()) {
            logger("onepoll: Already running for contact " . $contact_id);
            if ($pidfile->running_time() > 9 * 60) {
                $pidfile->kill();
                logger("killed stale process");
            }
            exit;
        }
    }
    $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.
    $contacts = q("SELECT `contact`.* FROM `contact`\n\t\tWHERE ( `rel` = %d OR `rel` = %d ) AND `poll` != ''\n\t\tAND NOT `network` IN ( '%s', '%s', '%s' )\n\t\tAND `contact`.`id` = %d\n\t\tAND `self` = 0 AND `contact`.`blocked` = 0 AND `contact`.`readonly` = 0\n\t\tAND `contact`.`archive` = 0 LIMIT 1", intval(CONTACT_IS_SHARING), intval(CONTACT_IS_FRIEND), dbesc(NETWORK_DIASPORA), dbesc(NETWORK_FACEBOOK), dbesc(NETWORK_PUMPIO), intval($contact_id));
    if (!count($contacts)) {
        return;
    }
    $contact = $contacts[0];
    $xml = false;
    $t = $contact['last-update'];
    if ($contact['subhub']) {
        $poll_interval = get_config('system', 'pushpoll_frequency');
        $contact['priority'] = $poll_interval !== false ? intval($poll_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'];
    $r = q("SELECT `contact`.*, `user`.`page-flags` FROM `contact` INNER JOIN `user` on `contact`.`uid` = `user`.`uid` WHERE `user`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1", intval($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.
        $perm = 'rw';
        // But this may be our first communication, so set the writable flag if it isn't set already.
        if (!intval($contact['writable'])) {
            q("update contact set writable = 1 where id = %d", intval($contact['id']));
        }
        $url = $contact['poll'] . '?dfrn_id=' . $idtosend . '&dfrn_version=' . DFRN_PROTOCOL_VERSION . '&type=data&last_update=' . $last_update . '&perm=' . $perm;
        $handshake_xml = fetch_url($url);
        $html_code = $a->get_curl_code();
        logger('onepoll: handshake with url ' . $url . ' returns xml: ' . $handshake_xml, LOGGER_DATA);
        if (!strlen($handshake_xml) || $html_code >= 400 || !$html_code) {
            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
            $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d", dbesc(datetime_convert()), intval($contact['id']));
            return;
        }
        if (!strstr($handshake_xml, '<')) {
            logger('poller: response from ' . $url . ' did not contain XML.');
            mark_for_death($contact);
            $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d", dbesc(datetime_convert()), intval($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
            $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d", dbesc(datetime_convert()), intval($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", 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 || $contact['rel'] == CONTACT_IS_FRIEND) ? 1 : 0;
        if ($contact['network'] === NETWORK_OSTATUS && get_pconfig($importer_uid, 'system', 'ostatus_autofriend')) {
            $stat_writeable = 1;
        }
        if ($stat_writeable != $contact['writable']) {
            q("UPDATE `contact` SET `writable` = %d WHERE `id` = %d", intval($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("Mail: Fetching", LOGGER_DEBUG);
        $mail_disabled = function_exists('imap_open') && !get_config('system', 'imap_disabled') ? 0 : 1;
        if ($mail_disabled) {
            return;
        }
        logger("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 to " . $mailconf[0]['user']);
            if ($mbox) {
                q("UPDATE `mailacct` SET `last_check` = '%s' WHERE `id` = %d AND `uid` = %d", dbesc(datetime_convert()), intval($mailconf[0]['id']), intval($importer_uid));
                logger("Mail: Connected to " . $mailconf[0]['user']);
            } else {
                logger("Mail: Connection error " . $mailconf[0]['user'] . " " . print_r(imap_errors()));
            }
        }
        if ($mbox) {
            $msgs = email_poll($mbox, $contact['addr']);
            if (count($msgs)) {
                logger("Mail: Parsing " . count($msgs) . " mails for " . $mailconf[0]['user'], LOGGER_DEBUG);
                $metas = email_msg_meta($mbox, implode(',', $msgs));
                if (count($metas) != count($msgs)) {
                    logger("onepoll: for " . $mailconf[0]['user'] . " there are " . count($msgs) . " messages but received " . count($metas) . " metas", LOGGER_DEBUG);
                } else {
                    $msgs = array_combine($msgs, $metas);
                    foreach ($msgs as $msg_uid => $meta) {
                        logger("Mail: Parsing mail " . $msg_uid, LOGGER_DATA);
                        $datarray = array();
                        $datarray['verb'] = ACTIVITY_POST;
                        $datarray['object-type'] = ACTIVITY_OBJ_NOTE;
                        //					$meta = email_msg_meta($mbox,$msg_uid);
                        //					$headers = email_msg_headers($mbox,$msg_uid);
                        $datarray['uri'] = msgid2iri(trim($meta->message_id, '<>'));
                        // 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 . " for " . $mailconf[0]['user'] . " UID: " . $importer_uid . " URI: " . $datarray['uri'], LOGGER_DEBUG);
                            // Only delete when mails aren't automatically moved or deleted
                            if ($mailconf[0]['action'] != 1 and $mailconf[0]['action'] != 3) {
                                if ($meta->deleted && !$r[0]['deleted']) {
                                    q("UPDATE `item` SET `deleted` = 1, `changed` = '%s' WHERE `id` = %d", dbesc(datetime_convert()), intval($r[0]['id']));
                                }
                            }
                            switch ($mailconf[0]['action']) {
                                case 0:
                                    logger("Mail: Seen before " . $msg_uid . " for " . $mailconf[0]['user'] . ". Doing nothing.", LOGGER_DEBUG);
                                    break;
                                case 1:
                                    logger("Mail: Deleting " . $msg_uid . " for " . $mailconf[0]['user']);
                                    imap_delete($mbox, $msg_uid, FT_UID);
                                    break;
                                case 2:
                                    logger("Mail: Mark as seen " . $msg_uid . " for " . $mailconf[0]['user']);
                                    imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
                                    break;
                                case 3:
                                    logger("Mail: Moving " . $msg_uid . " to " . $mailconf[0]['movetofolder'] . " for " . $mailconf[0]['user']);
                                    imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
                                    if ($mailconf[0]['movetofolder'] != "") {
                                        imap_mail_move($mbox, $msg_uid, $mailconf[0]['movetofolder'], FT_UID);
                                    }
                                    break;
                            }
                            continue;
                        }
                        // look for a 'references' or an 'in-reply-to' header and try to match with a parent item we have locally.
                        //					$raw_refs = ((x($headers,'references')) ? str_replace("\t",'',$headers['references']) : '');
                        $raw_refs = property_exists($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] = "'" . 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]['parent-uri'];
                            }
                            // Set the parent as the top-level item
                            //							$datarray['parent-uri'] = $r[0]['uri'];
                        }
                        // 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 a reply?
                        $reply = (substr(strtolower($datarray['title']), 0, 3) == "re:" or substr(strtolower($datarray['title']), 0, 3) == "re-" or $raw_refs != "");
                        // Remove Reply-signs in the subject
                        $datarray['title'] = RemoveReply($datarray['title']);
                        // If it seems to be a reply but a header couldn't be found take the last message with matching subject
                        if (!x($datarray, 'parent-uri') and $reply) {
                            $r = q("SELECT `uri` , `parent-uri` FROM `item` WHERE `title` = \"%s\" AND `uid` = %d ORDER BY `created` DESC LIMIT 1", dbesc(protect_sprintf($datarray['title'])), intval($importer_uid));
                            if (count($r)) {
                                $datarray['parent-uri'] = $r[0]['parent-uri'];
                            }
                        }
                        if (!x($datarray, 'parent-uri')) {
                            $datarray['parent-uri'] = $datarray['uri'];
                        }
                        $r = email_get_msg($mbox, $msg_uid, $reply);
                        if (!$r) {
                            logger("Mail: can't fetch msg " . $msg_uid . " for " . $mailconf[0]['user']);
                            continue;
                        }
                        $datarray['body'] = escape_tags($r['body']);
                        $datarray['body'] = limit_body_size($datarray['body']);
                        logger("Mail: Importing " . $msg_uid . " for " . $mailconf[0]['user']);
                        // some mailing lists have the original author as 'from' - add this sender info to msg body.
                        // todo: adding a gravatar for the original author would be cool
                        if (!stristr($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;
                                }
                            }
                            $fromarr = imap_rfc822_parse_adrlist($fromdecoded, $a->get_hostname());
                            $frommail = $fromarr[0]->mailbox . "@" . $fromarr[0]->host;
                            if (isset($fromarr[0]->personal)) {
                                $fromname = $fromarr[0]->personal;
                            } else {
                                $fromname = $frommail;
                            }
                            //$datarray['body'] = "[b]".t('From: ') . escape_tags($fromdecoded) . "[/b]\n\n" . $datarray['body'];
                            $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'];
                        } else {
                            $datarray['author-name'] = $contact['name'];
                            $datarray['author-link'] = 'mailbox';
                            $datarray['author-avatar'] = $contact['photo'];
                        }
                        $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'] . '>';
                        }
                        $stored_item = item_store($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", intval($stored_item));
                        switch ($mailconf[0]['action']) {
                            case 0:
                                logger("Mail: Seen before " . $msg_uid . " for " . $mailconf[0]['user'] . ". Doing nothing.", LOGGER_DEBUG);
                                break;
                            case 1:
                                logger("Mail: Deleting " . $msg_uid . " for " . $mailconf[0]['user']);
                                imap_delete($mbox, $msg_uid, FT_UID);
                                break;
                            case 2:
                                logger("Mail: Mark as seen " . $msg_uid . " for " . $mailconf[0]['user']);
                                imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
                                break;
                            case 3:
                                logger("Mail: Moving " . $msg_uid . " to " . $mailconf[0]['movetofolder'] . " for " . $mailconf[0]['user']);
                                imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
                                if ($mailconf[0]['movetofolder'] != "") {
                                    imap_mail_move($mbox, $msg_uid, $mailconf[0]['movetofolder'], FT_UID);
                                }
                                break;
                        }
                    }
                }
            } else {
                logger("Mail: no mails for " . $mailconf[0]['user']);
            }
            logger("Mail: closing connection for " . $mailconf[0]['user']);
            imap_close($mbox);
        }
    } elseif ($contact['network'] === NETWORK_FACEBOOK) {
        // This is picked up by the Facebook plugin on a cron hook.
        // Ignored here.
    } elseif ($contact['network'] === NETWORK_PUMPIO) {
        // This is picked up by the pump.io plugin on a cron hook.
        // Ignored here.
    }
    if ($xml) {
        logger('poller: received xml : ' . $xml, LOGGER_DATA);
        if (!strstr($xml, '<')) {
            logger('poller: post_handshake: response from ' . $url . ' did not contain XML.');
            $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d", dbesc(datetime_convert()), intval($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']) {
            $hubmode = 'unsubscribe';
        }
        if (($contact['network'] === NETWORK_OSTATUS || $contact['network'] == NETWORK_FEED) && !$contact['hub-verify']) {
            $hub_update = true;
        }
        if (strlen($hub) && $hub_update && ($contact['rel'] != CONTACT_IS_FOLLOWER || $contact['network'] == NETWORK_FEED)) {
            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();
    $r = q("UPDATE `contact` SET `last-update` = '%s', `success_update` = '%s' WHERE `id` = %d", dbesc($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;
}