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tighten api server installation for bad groups

pull/6/head
deads2k 2016-02-01 15:25:14 -05:00
parent 171c2ecbe7
commit 02dec92b1d
1 changed files with 9 additions and 0 deletions
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9
pkg/genericapiserver/genericapiserver.go
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@ -674,6 +674,15 @@ func (s *GenericAPIServer) installAPIGroup(apiGroupInfo *APIGroupInfo) error {
// Add a handler at /api to enumerate the supported api versions.
apiserver.AddApiWebService(s.Serializer, s.HandlerContainer, apiPrefix, apiVersions)
} else {
// Do not register empty group or empty version. Doing so claims /apis/ for the wrong entity to be returned.
// Catching these here places the error much closer to its origin
if len(apiGroupInfo.GroupMeta.GroupVersion.Group) == 0 {
return fmt.Errorf("cannot register handler with an empty group for %#v", *apiGroupInfo)
}
if len(apiGroupInfo.GroupMeta.GroupVersion.Version) == 0 {
return fmt.Errorf("cannot register handler with an empty version for %#v", *apiGroupInfo)
}
// Add a handler at /apis/<groupName> to enumerate all versions supported by this group.
apiVersionsForDiscovery := []unversioned.GroupVersionForDiscovery{}
for _, groupVersion := range apiGroupInfo.GroupMeta.GroupVersions {