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preliminary network abstraction, configurable debugging.

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This commit is contained in:
Mike Macgirvin 2010-09-26 16:30:21 -07:00
parent 0ebd4aa783
commit b91494d22e
10 changed files with 176 additions and 141 deletions
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90
include/items.php
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@ -464,3 +464,93 @@ function item_store($arr) {
return $current_post;
}
function get_item_contact($item,$contacts) {
if(! count($contacts) || (! is_array($item)))
return false;
foreach($contacts as $contact) {
if($contact['id'] == $item['contact-id']) {
return $contact;
break; // NOTREACHED
}
}
return false;
}
function dfrn_deliver($contact,$atom,$debugging = false) {
if((! strlen($contact['dfrn-id'])) && (! $contact['duplex']))
return 3;
$idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
if($contact['duplex'] && $contact['dfrn-id'])
$idtosend = '0:' . $orig_id;
if($contact['duplex'] && $contact['issued-id'])
$idtosend = '1:' . $orig_id;
$url = $contact['notify'] . '?dfrn_id=' . $idtosend;
if($debugging)
echo "URL: $url";
$xml = fetch_url($url);
if($debugging)
echo $xml;
if(! $xml)
return 3;
$res = simplexml_load_string($xml);
if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
return (($res->status) ? $res->status : 3);
$postvars = array();
$sent_dfrn_id = hex2bin($res->dfrn_id);
$challenge = hex2bin($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) {
// did not decode properly - cannot trust this site
return 3;
}
$postvars['dfrn_id'] = $idtosend;
if(($contact['rel']) && ($contact['rel'] != REL_FAN) && (! $contact['blocked']) && (! $contact['readonly'])) {
$postvars['data'] = $atom;
}
else {
$postvars['data'] = str_replace('<dfrn:comment-allow>1','<dfrn:comment-allow>0',$atom);
}
$xml = post_url($contact['notify'],$postvars);
if($debugging)
echo $xml;
$res = simplexml_load_string($xml);
return $res->status;
}