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Even if we have the specified keyid in the DB, check AP actor header if present

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Previously, when verifying an HTTP signature and we find out we have the
provided keyid in the DB, and this key is a personal key, we would just grab
the key owner from the DB and ignore the ActivityPub-Actor header.

This patch adds a check: If we find the key in the DB and it's a personal key,
do grab the owner from that DB row, but also check the actor header: If it's
provided, it has to be identical to the key owner ID URI.
This commit is contained in:
fr33domlover 2019-02-17 00:32:38 +00:00
parent fa5c509a25
commit 69e807214d
1 changed files with 7 additions and 1 deletions
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8
src/Vervis/Foundation.hs
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@ -699,7 +699,13 @@ instance YesodHttpSig App where
Just (Entity vkid vk, mremote) -> do
(ua, s) <-
case mremote of
Just remote -> return (remoteSharerIdent remote, False)
Just remote -> do
let sharer = remoteSharerIdent remote
for_ muActorHeader $ \ u ->
if sharer == u
then return ()
else throwE "Key's owner doesn't match actor header"
return (sharer, False)
Nothing ->
case muActorHeader of
Nothing -> throwE "Got a sig with an instance key, but actor header not specified!"