LogDog: Support per-namespace expired archival.

appengine/cmd/logdog_coordinator/backend/main.go

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package module
 
 import (
         "net/http"
 
+        "golang.org/x/net/context"
+
         "github.com/julienschmidt/httprouter"
-        gaeauthServer "github.com/luci/luci-go/appengine/gaeauth/server"
-        "github.com/luci/luci-go/appengine/gaemiddleware"
         "github.com/luci/luci-go/appengine/logdog/coordinator"
-        "github.com/luci/luci-go/appengine/logdog/coordinator/backend"
         "github.com/luci/luci-go/appengine/logdog/coordinator/config"
         "github.com/luci/luci-go/appengine/tumble"
-        "github.com/luci/luci-go/server/auth"
-        "github.com/luci/luci-go/server/middleware"
 
         // Include mutations package so its Mutations will register with tumble via
         // init().
         _ "github.com/luci/luci-go/appengine/logdog/coordinator/mutations"
 )
 
-func authenticator(scopes ...string) auth.Authenticator {
-        return auth.Authenticator{
-                &gaeauthServer.OAuth2Method{Scopes: scopes},
-                gaeauthServer.CookieAuth,
-                &gaeauthServer.InboundAppIDAuthMethod{},
+func init() {
+        tmb := tumble.Service{
+                Middleware: func(c context.Context) context.Context {
+                        c = config.UseConfig(c)
+                        c = coordinator.UseProdServices(c)
+                        return c
+                },
         }
-}
-
-// base is the root of the middleware chain.
-func base(h middleware.Handler) httprouter.Handle {
-        a := authenticator(gaeauthServer.EmailScope)
-        h = auth.Use(h, a)
-        h = config.WithConfig(h)
-        h = coordinator.WithProdServices(h)
-        return gaemiddleware.BaseProd(h)
-}
-
-func init() {
-        b := backend.Backend{}
-        tmb := tumble.Service{}
 
         router := httprouter.New()
-        b.InstallHandlers(router, base)
         tmb.InstallHandlers(router)
 
         http.Handle("/", router)
 }