vault: spec out expiration manager API

vault/expiration.go

@@ -1,5 +1,7 @@
 package vault
 
+import "time"
+
 const (
 	// expirationSubPath is the sub-path used for the expiration manager
 	// view. This is nested under the system view.
@@ -11,14 +13,16 @@ const (
 // If a secret is not renewed in timely manner, it may be expired, and
 // the ExpirationManager will handle doing automatic revocation.
 type ExpirationManager struct {
-	view *BarrierView
+	router *Router
+	view   *BarrierView
 }
 
 // NewExpirationManager creates a new ExpirationManager that is backed
-// using a given view.
-func NewExpirationManager(view *BarrierView) *ExpirationManager {
+// using a given view, and uses the provided router for revocation.
+func NewExpirationManager(router *Router, view *BarrierView) *ExpirationManager {
 	exp := &ExpirationManager{
-		view: view,
+		router: router,
+		view:   view,
 	}
 	return exp
 }
@@ -30,7 +34,32 @@ func (c *Core) setupExpiration() error {
 	view := c.systemView.SubView(expirationSubPath)
 
 	// Create the manager
-	mgr := NewExpirationManager(view)
+	mgr := NewExpirationManager(c.router, view)
 	c.expiration = mgr
 	return nil
 }
+
+// Revoke is used to revoke a secret named by the given vaultID
+func (m *ExpirationManager) Revoke(vaultID string) error {
+	return nil
+}
+
+// RevokePrefix is used to revoke all secrets with a given prefix.
+// The prefix maps to that of the mount table to make this simpler
+// to reason about.
+func (m *ExpirationManager) RevokePrefix(prefix string) error {
+	return nil
+}
+
+// Renew is used to renew a secret using the given vaultID
+// and a renew interval. The increment may be ignored.
+func (m *ExpirationManager) Renew(vaultID string, increment time.Duration) (*Lease, error) {
+	return nil, nil
+}
+
+// Register is used to take a request and response with an associated
+// lease. The secret gets assigned a vaultId and the management of
+// of lease is assumed by the expiration manager.
+func (m *ExpirationManager) Register(req *Request, resp *Response) (string, error) {
+	return "", nil
+}