+
+
+function store_diaspora_comment_sig($datarray, $author, $uprvkey, $parent_item, $post_id) {
+ // We won't be able to sign Diaspora comments for authenticated visitors - we don't have their private key
+
+ $enabled = intval(get_config('system','diaspora_enabled'));
+ if(! $enabled) {
+ logger('mod_item: diaspora support disabled, not storing comment signature', LOGGER_DEBUG);
+ return;
+ }
+
+
+ logger('mod_item: storing diaspora comment signature');
+
+ require_once('include/bb2diaspora.php');
+ $signed_body = html_entity_decode(bb2diaspora($datarray['body']));
+
+ // Only works for NETWORK_DFRN
+ $contact_baseurl_start = strpos($author['url'],'://') + 3;
+ $contact_baseurl_length = strpos($author['url'],'/profile') - $contact_baseurl_start;
+ $contact_baseurl = substr($author['url'], $contact_baseurl_start, $contact_baseurl_length);
+ $diaspora_handle = $author['nick'] . '@' . $contact_baseurl;
+
+ $signed_text = $datarray['guid'] . ';' . $parent_item['guid'] . ';' . $signed_body . ';' . $diaspora_handle;
+
+ if( $uprvkey !== false )
+ $authorsig = base64_encode(rsa_sign($signed_text,$uprvkey,'sha256'));
+ else
+ $authorsig = '';
+
+ q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
+ intval($post_id),
+ dbesc($signed_text),
+ dbesc(base64_encode($authorsig)),
+ dbesc($diaspora_handle)
+ );
+
+ return;
+}