Add User Testing interface to impl/memory.

impl/memory/user.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 memory
+
+import (
+        "crypto/sha256"
+        "encoding/binary"
+        "fmt"
+        "net/url"
+        "strings"
+        "sync"
+
+        "golang.org/x/net/context"
+
+        "github.com/luci/gae/service/user"
+)
+
+type userData struct {
+        sync.RWMutex
+        user *user.User
+}
+
+// userImpl is a contextual pointer to the current userData.
+type userImpl struct {
+        data *userData
+}
+
+var _ user.Interface = (*userImpl)(nil)
+
+// useUser adds a user.Interface implementation to context, accessible
+// by user.Get(c)
+func useUser(c context.Context) context.Context {
+        data := &userData{}
+
+        return user.SetFactory(c, func(ic context.Context) user.Interface {
+                return &userImpl{data}
+        })
+}
+
+func (u *userImpl) Current() *user.User {
+        u.data.RLock()
+        defer u.data.RUnlock()
+        if u.data.user != nil && u.data.user.ClientID == "" {
+                ret := *u.data.user
+                return &ret
+        }
+        return nil
+}
+
+func (u *userImpl) CurrentOAuth(scopes ...string) (*user.User, error) {
+        // TODO(riannucci): something more clever in the Testable interface here?
+        u.data.RLock()
+        defer u.data.RUnlock()
+        if u.data.user != nil && u.data.user.ClientID != "" {
+                ret := *u.data.user
+                return &ret, nil
+        }
+        return nil, nil
+}
+
+func (u *userImpl) IsAdmin() bool {
+        u.data.RLock()
+        defer u.data.RUnlock()
+        return u.data.user != nil && u.data.user.Admin
+}
+
+func (u *userImpl) LoginURL(dest string) (string, error) {
+        return "https://fakeapp.example.com/_ah/login?redirect=" + url.QueryEscape(dest), nil
+}
+
+func (u *userImpl) LogoutURL(dest string) (string, error) {
+        return "https://fakeapp.example.com/_ah/logout?redirect=" + url.QueryEscape(dest), nil
+}
+
+func (u *userImpl) LoginURLFederated(dest, identity string) (string, error) {
+        return "", fmt.Errorf("LoginURLFederated is deprecated")
+}
+
+func (u *userImpl) OAuthConsumerKey() (string, error) {
+        return "", fmt.Errorf("OAuthConsumerKey is deprecated")
+}
+
+func (u *userImpl) Testable() user.Testable {
+        return u
+}
+
+func (u *userImpl) SetUser(user *user.User) {
+        u.data.Lock()
+        defer u.data.Unlock()
+        u.data.user = user
+}
+
+func (u *userImpl) Login(email, clientID string, admin bool) {
+        parts := strings.Split(email, "@")
+        if len(parts) != 2 {
+                panic(fmt.Errorf("%q doesn't seem to be a valid email", email))
+        }
+
+        id := sha256.Sum256([]byte("ID:" + email))
+
+        u.SetUser(&user.User{
+                Email:      email,
+                AuthDomain: parts[1],
+                Admin:      admin,
+
+                ID:       fmt.Sprint(binary.LittleEndian.Uint64(id[:])),
+                ClientID: clientID,
+        })
+}
+
+func (u *userImpl) Logout() {
+        u.SetUser(nil)
+}