/
helpers.go
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/
helpers.go
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// Copyright 2015 The LUCI Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package authdbimpl
import (
"context"
"go.chromium.org/gae/service/info"
"github.com/TriggerMail/luci-go/server/auth/service"
)
// authService is interface for service.AuthService.
//
// Unit tests inject fake implementation into the testing context.
type authService interface {
EnsureSubscription(c context.Context, subscription, pushURL string) error
DeleteSubscription(c context.Context, subscription string) error
PullPubSub(c context.Context, subscription string) (*service.Notification, error)
ProcessPubSubPush(c context.Context, body []byte) (*service.Notification, error)
GetLatestSnapshotRevision(c context.Context) (int64, error)
GetSnapshot(c context.Context, rev int64) (*service.Snapshot, error)
}
type contextKey int
// setAuthService injects authService implementation into the context.
//
// Used in unit tests.
func setAuthService(c context.Context, s authService) context.Context {
return context.WithValue(c, contextKey(0), s)
}
// getAuthService returns authService implementation injected into the context
// via setAuthService or *service.AuthService otherwise.
func getAuthService(c context.Context, url string) authService {
if s, _ := c.Value(contextKey(0)).(authService); s != nil {
return s
}
return &service.AuthService{URL: url}
}
// defaultNS returns GAE context configured to use default namespace.
//
// All publicly callable functions must use it to switch to default namespace.
// All internal functions expect the context to be in the default namespace.
//
// Idempotent.
func defaultNS(c context.Context) context.Context {
return info.MustNamespace(c, "")
}