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https://git.friendi.ca/friendica/friendica.git
synced 2025-06-17 02:45:16 +02:00
Switched to static methods for DFRN
This commit is contained in:
Michael Vogel
parent
77c6020dc2
commit
62de6be495
7 changed files with 934 additions and 931 deletions
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@ -1696,245 +1696,9 @@ function tgroup_check($uid,$item) {
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if((! $community_page) && (! $prvgroup))
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return false;
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return true;
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}
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function dfrn_deliver($owner,$contact,$atom, $dissolve = false) {
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$a = get_app();
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$idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
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if($contact['duplex'] && $contact['dfrn-id'])
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$idtosend = '0:' . $orig_id;
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if($contact['duplex'] && $contact['issued-id'])
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$idtosend = '1:' . $orig_id;
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$rino = get_config('system','rino_encrypt');
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$rino = intval($rino);
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// use RINO1 if mcrypt isn't installed and RINO2 was selected
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if ($rino==2 and !function_exists('mcrypt_create_iv')) $rino=1;
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logger("Local rino version: ". $rino, LOGGER_DEBUG);
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$ssl_val = intval(get_config('system','ssl_policy'));
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$ssl_policy = '';
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switch($ssl_val){
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case SSL_POLICY_FULL:
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$ssl_policy = 'full';
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break;
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case SSL_POLICY_SELFSIGN:
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$ssl_policy = 'self';
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break;
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case SSL_POLICY_NONE:
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default:
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$ssl_policy = 'none';
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break;
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}
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$url = $contact['notify'] . '&dfrn_id=' . $idtosend . '&dfrn_version=' . DFRN_PROTOCOL_VERSION . (($rino) ? '&rino='.$rino : '');
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logger('dfrn_deliver: ' . $url);
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$xml = fetch_url($url);
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$curl_stat = $a->get_curl_code();
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if(! $curl_stat)
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return(-1); // timed out
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logger('dfrn_deliver: ' . $xml, LOGGER_DATA);
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if(! $xml)
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return 3;
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if(strpos($xml,'<?xml') === false) {
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logger('dfrn_deliver: no valid XML returned');
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logger('dfrn_deliver: returned XML: ' . $xml, LOGGER_DATA);
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return 3;
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}
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$res = parse_xml_string($xml);
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if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
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return (($res->status) ? $res->status : 3);
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$postvars = array();
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$sent_dfrn_id = hex2bin((string) $res->dfrn_id);
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$challenge = hex2bin((string) $res->challenge);
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$perm = (($res->perm) ? $res->perm : null);
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$dfrn_version = (float) (($res->dfrn_version) ? $res->dfrn_version : 2.0);
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$rino_remote_version = intval($res->rino);
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$page = (($owner['page-flags'] == PAGE_COMMUNITY) ? 1 : 0);
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logger("Remote rino version: ".$rino_remote_version." for ".$contact["url"], LOGGER_DEBUG);
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if($owner['page-flags'] == PAGE_PRVGROUP)
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$page = 2;
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$final_dfrn_id = '';
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if($perm) {
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if((($perm == 'rw') && (! intval($contact['writable'])))
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|| (($perm == 'r') && (intval($contact['writable'])))) {
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q("update contact set writable = %d where id = %d",
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intval(($perm == 'rw') ? 1 : 0),
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intval($contact['id'])
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);
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$contact['writable'] = (string) 1 - intval($contact['writable']);
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}
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}
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if(($contact['duplex'] && strlen($contact['pubkey']))
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|| ($owner['page-flags'] == PAGE_COMMUNITY && strlen($contact['pubkey']))
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|| ($contact['rel'] == CONTACT_IS_SHARING && strlen($contact['pubkey']))) {
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openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
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openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
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}
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else {
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openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
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openssl_private_decrypt($challenge,$postvars['challenge'],$contact['prvkey']);
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}
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$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 != $orig_id) {
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logger('dfrn_deliver: wrong dfrn_id.');
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// did not decode properly - cannot trust this site
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return 3;
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}
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$postvars['dfrn_id'] = $idtosend;
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$postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
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if($dissolve)
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$postvars['dissolve'] = '1';
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if((($contact['rel']) && ($contact['rel'] != CONTACT_IS_SHARING) && (! $contact['blocked'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
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$postvars['data'] = $atom;
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$postvars['perm'] = 'rw';
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}
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else {
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$postvars['data'] = str_replace('<dfrn:comment-allow>1','<dfrn:comment-allow>0',$atom);
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$postvars['perm'] = 'r';
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}
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$postvars['ssl_policy'] = $ssl_policy;
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if($page)
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$postvars['page'] = $page;
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if($rino>0 && $rino_remote_version>0 && (! $dissolve)) {
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logger('rino version: '. $rino_remote_version);
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switch($rino_remote_version) {
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case 1:
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// Deprecated rino version!
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$key = substr(random_string(),0,16);
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$data = aes_encrypt($postvars['data'],$key);
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break;
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case 2:
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// RINO 2 based on php-encryption
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try {
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$key = Crypto::createNewRandomKey();
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} catch (CryptoTestFailed $ex) {
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logger('Cannot safely create a key');
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return -1;
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} catch (CannotPerformOperation $ex) {
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logger('Cannot safely create a key');
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return -1;
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}
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try {
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$data = Crypto::encrypt($postvars['data'], $key);
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} catch (CryptoTestFailed $ex) {
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logger('Cannot safely perform encryption');
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return -1;
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} catch (CannotPerformOperation $ex) {
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logger('Cannot safely perform encryption');
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return -1;
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}
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break;
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default:
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logger("rino: invalid requested verision '$rino_remote_version'");
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return -1;
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}
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$postvars['rino'] = $rino_remote_version;
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$postvars['data'] = bin2hex($data);
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#logger('rino: sent key = ' . $key, LOGGER_DEBUG);
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if($dfrn_version >= 2.1) {
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if(($contact['duplex'] && strlen($contact['pubkey']))
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|| ($owner['page-flags'] == PAGE_COMMUNITY && strlen($contact['pubkey']))
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|| ($contact['rel'] == CONTACT_IS_SHARING && strlen($contact['pubkey']))) {
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openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
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}
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else {
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openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
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}
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}
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else {
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if(($contact['duplex'] && strlen($contact['prvkey'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
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openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
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}
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else {
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openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
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}
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}
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logger('md5 rawkey ' . md5($postvars['key']));
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$postvars['key'] = bin2hex($postvars['key']);
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}
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logger('dfrn_deliver: ' . "SENDING: " . print_r($postvars,true), LOGGER_DATA);
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$xml = post_url($contact['notify'],$postvars);
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logger('dfrn_deliver: ' . "RECEIVED: " . $xml, LOGGER_DATA);
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$curl_stat = $a->get_curl_code();
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if((! $curl_stat) || (! strlen($xml)))
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return(-1); // timed out
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if(($curl_stat == 503) && (stristr($a->get_curl_headers(),'retry-after')))
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return(-1);
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if(strpos($xml,'<?xml') === false) {
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logger('dfrn_deliver: phase 2: no valid XML returned');
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logger('dfrn_deliver: phase 2: returned XML: ' . $xml, LOGGER_DATA);
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return 3;
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}
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if($contact['term-date'] != '0000-00-00 00:00:00') {
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logger("dfrn_deliver: $url back from the dead - removing mark for death");
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require_once('include/Contact.php');
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unmark_for_death($contact);
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}
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$res = parse_xml_string($xml);
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return $res->status;
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}
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/*
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This function returns true if $update has an edited timestamp newer
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than $existing, i.e. $update contains new data which should override
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