Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
require_once("boot.php");
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);
};
$mbox = null;
require_once('session.php');
require_once('datetime.php');
require_once('simplepie/simplepie.inc');
require_once('include/items.php');
require_once('include/Contact.php');
require_once('include/email.php');
$a->set_baseurl(get_config('system','url'));
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logger('poller: start');
// run queue delivery process in the background
proc_run('php',"include/queue.php");
// once daily run expire in background
$d1 = get_config('system','last_expire_day');
$d2 = intval(datetime_convert('UTC','UTC','now','d'));
if($d2 != intval($d1)) {
set_config('system','last_expire_day',$d2);
proc_run('php','include/expire.php');
}
// clear old cache
q("DELETE FROM `cache` WHERE `updated` < '%s'",
dbesc(datetime_convert('UTC','UTC',"now - 30 days")));
$manual_id = 0;
$hub_update = false;
$force = false;
if(($argc > 1) && ($argv[1] == 'force'))
$force = true;
if(($argc > 1) && intval($argv[1])) {
$manual_id = intval($argv[1]);
$force = true;
}
$sql_extra = (($manual_id) ? " AND `id` = $manual_id " : "");
$d = datetime_convert();
call_hooks('cron', $d);
reload_plugins();
$contacts = q("SELECT `id` FROM `contact`
WHERE ( `rel` = %d OR `rel` = %d ) AND `poll` != ''
$sql_extra
AND `self` = 0 AND `blocked` = 0 AND `readonly` = 0 ORDER BY RAND()",
intval(REL_FAN),
intval(REL_BUD)
);
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if(! count($contacts)) {
return;
}
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foreach($contacts as $c) {
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$res = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
intval($c['id'])
);
if(! count($res))
continue;
foreach($res as $contact) {
$xml = false;
if($manual_id)
$contact['last-update'] = '0000-00-00 00:00:00';
if($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;
}
/**
* 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;
}
$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 = $r[0];
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logger("poller: poll: IMPORTER: {$importer['name']}, CONTACT: {$contact['name']}");
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$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)
);
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if($contact['network'] === NETWORK_DFRN) {
$idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
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if(intval($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'])
);
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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;
$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($final_dfrn_id, '.'));
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if(strpos($final_dfrn_id,':') == 1)
$final_dfrn_id = substr($final_dfrn_id,2);
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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
if(($contact['notify']) && (! $contact['writable'])) {
q("UPDATE `contact` SET `writable` = 1 WHERE `id` = %d LIMIT 1",
intval($contact['id'])
);
}
$xml = fetch_url($contact['poll']);
}
elseif($contact['network'] === NETWORK_MAIL) {
if(! $mbox) {
$x = q("SELECT `prvkey` FROM `user` WHERE `uid` = $d LIMIT 1",
intval($importer_uid)
);
$r = q("SELECT * FROM `mailacct` WHERE `uid` = %d LIMIT 1",
intval($importer_uid)
);
if(count($x) && count($r)) {
$mailbox = construct_mailbox_name($r[0]);
$password = '';
openssl_private_decrypt($r[0]['pass'],$password,$x[0]['prvkey']);
$mbox = email_connect($mailbox,$r[0]['user'],$password);
unset($password);
}
}
if($mbox) {
$msgs = email_poll($mbox,$contact['addr']);
if(count($msgs)) {
// TODO: loop through, fetch, check duplicates, and import
}
}
}
elseif($contact['network'] === NETWORK_FACEBOOK) {
// TODO: work in progress
}
if($xml) {
logger('poller: received xml : ' . $xml, LOGGER_DATA);
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if(! strstr($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, true);
// 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);
if((strlen($hub)) && ($hub_update) && (($contact['rel'] == REL_BUD) || (($contact['network'] === NETWORK_OSTATUS) && (! $contact['readonly'])))) {
logger('poller: subscribing to hub(s) : ' . $hub . ' contact name : ' . $contact['name'] . ' local user : ' . $importer['name']);
$hubs = explode(',', $hub);
if(count($hubs)) {
foreach($hubs as $h) {
$h = trim($h);
if(! strlen($h))
continue;
subscribe_to_hub($h,$importer,$contact);
}
}
}
}
$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'])
);
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// loop - next contact
}
}
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return;
}
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if (array_search(__file__,get_included_files())===0){
poller_run($argv,$argc);
killme();
}