Merge pull request #1446 from annando/issue-905

Diaspora: The signature of likes are checked now correctly
This commit is contained in:
fabrixxm 2015-03-23 12:06:46 +01:00
commit 8b5d9c32a7
1 changed files with 19 additions and 19 deletions

View File

@ -1952,7 +1952,12 @@ function diaspora_like($importer,$xml,$msg) {
who sent the salmon
*/
$signed_data = $guid . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $diaspora_handle;
// Diaspora has changed the way they are signing the likes.
// Just to make sure that we don't miss any likes we will check the old and the current way.
$old_signed_data = $guid . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $diaspora_handle;
$signed_data = $positive . ';' . $guid . ';' . $target_type . ';' . $parent_guid . ';' . $diaspora_handle;
$key = $msg['key'];
if ($parent_author_signature) {
@ -1962,16 +1967,13 @@ function diaspora_like($importer,$xml,$msg) {
$parent_author_signature = base64_decode($parent_author_signature);
if(! rsa_verify($signed_data,$parent_author_signature,$key,'sha256')) {
if (intval(get_config('system','ignore_diaspora_like_signature')))
logger('diaspora_like: top-level owner verification failed. Proceeding anyway.');
else {
if (!rsa_verify($signed_data,$parent_author_signature,$key,'sha256') AND
!rsa_verify($old_signed_data,$parent_author_signature,$key,'sha256')) {
logger('diaspora_like: top-level owner verification failed.');
return;
}
}
}
else {
} else {
// If there's no parent_author_signature, then we've received the like
// from the like creator. In that case, the person is "like"ing
// our post, so he/she must be a contact of ours and his/her public key
@ -1979,15 +1981,13 @@ function diaspora_like($importer,$xml,$msg) {
$author_signature = base64_decode($author_signature);
if(! rsa_verify($signed_data,$author_signature,$key,'sha256')) {
if (intval(get_config('system','ignore_diaspora_like_signature')))
logger('diaspora_like: like creator verification failed. Proceeding anyway');
else {
if (!rsa_verify($signed_data,$author_signature,$key,'sha256') AND
!rsa_verify($old_signed_data,$author_signature,$key,'sha256')) {
logger('diaspora_like: like creator verification failed.');
return;
}
}
}
// Phew! Everything checks out. Now create an item.