[feature] Allow admins to expire remote public keys; refetch expired keys on demand (#2183)

internal/api/model/domain.go

@@ -79,3 +79,11 @@ type DomainBlockCreateRequest struct {
 	// public comment on the reason for the domain block
 	PublicComment string `form:"public_comment" json:"public_comment" xml:"public_comment"`
 }
+
+// DomainBlockCreateRequest is the form submitted as a POST to /api/v1/admin/domain_keys_expire to expire a domain's public keys.
+//
+// swagger:model domainKeysExpireRequest
+type DomainKeysExpireRequest struct {
+	// hostname/domain to expire keys for.
+	Domain string `form:"domain" json:"domain" xml:"domain"`
+}