auth: Refactor how authentication methods are passed to server/auth library.

scheduler/appengine/ui/common.go

 // Copyright 2015 The LUCI Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
 // Package ui implements request handlers that serve user facing HTML pages.
 package ui
 
 import (
         "strings"
 
         "golang.org/x/net/context"
 
         "github.com/luci/gae/service/info"
 
+        "github.com/luci/luci-go/appengine/gaeauth/server"
         "github.com/luci/luci-go/server/auth"
         "github.com/luci/luci-go/server/auth/xsrf"
         "github.com/luci/luci-go/server/router"
         "github.com/luci/luci-go/server/templates"
 
         "github.com/luci/luci-go/scheduler/appengine/catalog"
         "github.com/luci/luci-go/scheduler/appengine/engine"
 )
 
 // Config is global configuration of UI handlers.
 type Config struct {
         Engine        engine.Engine
         Catalog       catalog.Catalog
         TemplatesPath string // path to templates directory deployed to GAE
 }
 
 // InstallHandlers adds HTTP handlers that render HTML pages.
 func InstallHandlers(r *router.Router, base router.MiddlewareChain, cfg Config) {
         tmpl := prepareTemplates(cfg.TemplatesPath)
 
         m := base.Extend(func(c *router.Context, next router.Handler) {
                 c.Context = context.WithValue(c.Context, configContextKey(0), &cfg)
                 next(c)
-        }, templates.WithTemplates(tmpl), auth.Authenticate)
+        })
+        m = m.Extend(
+                templates.WithTemplates(tmpl),
+                auth.Authenticate(server.CookieAuth),
+        )
 
         r.GET("/", m, indexPage)
         r.GET("/jobs/:ProjectID", m, projectPage)
         r.GET("/jobs/:ProjectID/:JobID", m, jobPage)
         r.GET("/jobs/:ProjectID/:JobID/:InvID", m, invocationPage)
 
         // All POST forms must be protected with XSRF token.
         mxsrf := m.Extend(xsrf.WithTokenCheck)
         r.POST("/actions/runJob/:ProjectID/:JobID", mxsrf, runJobAction)
         r.POST("/actions/pauseJob/:ProjectID/:JobID", mxsrf, pauseJobAction)
@@ skipping 38 matching lines @@
                                 "AppVersion":  strings.Split(info.VersionID(c), ".")[0],
                                 "IsAnonymous": auth.CurrentIdentity(c) == "anonymous:anonymous",
                                 "User":        auth.CurrentUser(c),
                                 "LoginURL":    loginURL,
                                 "LogoutURL":   logoutURL,
                                 "XsrfToken":   token,
                         }, nil
                 },
         }
 }