201 lines
5 KiB
PHP
201 lines
5 KiB
PHP
<?php
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require_once('boot.php');
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$a = new App;
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@include('.htconfig.php');
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require_once('dba.php');
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$db = new dba($db_host, $db_user, $db_pass, $db_data);
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unset($db_host, $db_user, $db_pass, $db_data);
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require_once('session.php');
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require_once('datetime.php');
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require_once('simplepie/simplepie.inc');
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require_once('include/items.php');
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require_once('include/Contact.php');
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$debugging = get_config('system','debugging');
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$a->set_baseurl(get_config('system','url'));
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$contacts = q("SELECT * FROM `contact`
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WHERE `network` = 'dfrn' AND ( `dfrn-id` != '' OR (`issued-id` != '' AND `duplex` = 1))
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AND `self` = 0 AND `blocked` = 0 AND `readonly` = 0 ORDER BY RAND()");
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if(! count($contacts))
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killme();
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foreach($contacts as $contact) {
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if($contact['priority'] || $contact['subhub']) {
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$update = false;
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// We should be getting everything via a hub. But just to be sure, let's check once a day.
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// This also lets us update our subscription to the hub, and add or replace hubs in case it
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// changed.
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if($contact['subhub'])
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$contact['priority'] = 3;
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$t = $contact['last-update'];
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switch ($contact['priority']) {
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case 5:
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if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 month"))
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$update = true;
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break;
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case 4:
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if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 week"))
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$update = true;
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break;
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case 3:
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if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 day"))
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$update = true;
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break;
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case 2:
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if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 12 hour"))
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$update = true;
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break;
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case 1:
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default:
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if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 hour"))
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$update = true;
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break;
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}
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if(! $update)
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continue;
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}
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$importer_uid = $contact['uid'];
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$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
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intval($importer_uid)
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);
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if(! count($r))
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continue;
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$importer = $r[0];
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if($debugging)
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echo "IMPORTER: {$importer['name']}\n";
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$last_update = (($contact['last-update'] === '0000-00-00 00:00:00')
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? datetime_convert('UTC','UTC','now - 30 days', ATOM_TIME)
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: datetime_convert('UTC','UTC',$contact['last-update'], ATOM_TIME)
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);
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$idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
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if(intval($contact['duplex']) && $contact['dfrn-id'])
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$idtosend = '0:' . $orig_id;
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if(intval($contact['duplex']) && $contact['issued-id'])
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$idtosend = '1:' . $orig_id;
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$url = $contact['poll'] . '?dfrn_id=' . $idtosend
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. '&dfrn_version=' . DFRN_PROTOCOL_VERSION
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. '&type=data&last_update=' . $last_update ;
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$xml = fetch_url($url);
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if($debugging) {
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echo "URL: " . $url . "\n";
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echo "XML: " . $xml . "\n";
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}
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if(! $xml) {
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// dead connection - might be a transient event, or this might
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// mean the software was uninstalled or the domain expired.
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// Will keep trying for one month.
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mark_for_death($contact);
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continue;
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}
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$res = simplexml_load_string($xml);
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if(intval($res->status) == 1) {
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// we may not be friends anymore. Will keep trying for one month.
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mark_for_death($contact);
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}
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else {
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if($contact['term-date'] != '0000-00-00 00:00:00')
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unmark_for_death($contact);
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}
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if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
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continue;
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$postvars = array();
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$sent_dfrn_id = hex2bin($res->dfrn_id);
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$challenge = hex2bin($res->challenge);
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$final_dfrn_id = '';
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if(($contact['duplex']) && strlen($contact['prvkey'])) {
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openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
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openssl_private_decrypt($challenge,$postvars['challenge'],$contact['prvkey']);
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}
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else {
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openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
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openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
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}
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$final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
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if(strpos($final_dfrn_id,':') == 1)
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$final_dfrn_id = substr($final_dfrn_id,2);
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if($final_dfrn_id != $orig_id) {
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// did not decode properly - cannot trust this site
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continue;
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}
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$postvars['dfrn_id'] = $idtosend;
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$postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
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$xml = post_url($contact['poll'],$postvars);
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if($debugging) {
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echo "XML response:" . $xml . "\n";
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echo "Length:" . strlen($xml) . "\n";
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}
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if(! strlen($xml))
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continue;
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consume_feed($xml,$importer,$contact,$hub);
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if((strlen($hub)) && ($contact['rel'] == REL_BUD) && ($contact['priority'] == 0)) {
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$hubs = explode(',', $hub);
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if(count($hubs)) {
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foreach($hubs as $h) {
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$h = trim($h);
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if(! strlen($h))
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continue;
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subscribe_to_hub($h,$importer,$contact);
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}
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}
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}
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$r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
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dbesc(datetime_convert()),
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intval($contact['id'])
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);
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}
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killme();
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