dirmngr: Forbid redirects from .onion to clearnet URIs.
* dirmngr/ks-engine-hkp.c (send_request): Forbid redirects from .onion to clearnet URIs. * dirmngr/ks-engine-http.c (ks_http_fetch): Likewise.
This protects users from misconfigured .onion services.
- GnuPG-bug-id: T3087
- Signed-off-by: Justus Winter <justus@g10code.com>