// NewKey returns a new *datastore.Key for `kind`
func (kind *Kind) NewKey(req *wcg.Request, key string, parent *datastore.Key) *datastore.Key {
ctx, err := appengine.Namespace(gae.NewContext(req), kind.Namespace)
if err != nil {
panic(err)
}
return datastore.NewKey(ctx, string(kind.Name), key, 0, parent)
}
func setupAPIStats(app *server.App) {
var API = app.API()
// --------------------------------------------------------------------------
// Stats
API.GET("/stats/",
server.Handler(func(req *wcg.Request) response.Response {
stats, _ := runtime.Stats(gae.NewContext(req))
json := map[string]interface{}{
"version": lib.Commit,
"timestamp": lib.Timestamp,
"stats": stats,
"environment": lib.CurrentEnvironment(),
"envvars": lib.GetEnvVars(),
}
if _, dsStats, err := entities.DatastoreStat.Get().Key("total_entities_usage").One(req); err != nil {
json["datastore"] = dsStats
}
// use array response for API convention.
return response.NewJSONResponse(
[](map[string]interface{}){
json,
},
)
}))
}
// NewCacheDriver creates a new memcache driver.
func (kind *Kind) NewCacheDriver(req *wcg.Request) *memcache.Driver {
driver := memcache.NewDriver(gae.NewContext(req), req.Logger)
if kind.Namespace != "" {
driver.Namespace(kind.Namespace)
}
return driver
}
// PushTask to push a task into the queue.
func (queue *PushQueue) PushTask(req *wcg.Request, urlPath string, form url.Values) error {
var queueName string
if req.IsTest() || lib.IsOnLocalGAE() {
queueName = "default"
} else {
queueName = queue.Name
}
if _, err := taskqueue.Add(gae.NewContext(req), taskqueue.NewPOSTTask(urlPath, form), queueName); err != nil {
req.Logger.Errorf("[Queue] Error adding a task (%s) into the queue (%q): %v", urlPath, queueName, err)
return err
}
return nil
}
// NewImageCacher cretes a new *ImageCacher available in a request.
func NewImageCacher(req *wcg.Request, kind *entities.Kind) (*ImageCacher, error) {
client, err := newMediaClient(req)
if err != nil {
return nil, err
}
logger := wcg.NewLoggerWithPrefix(req, "ImageCache")
return &ImageCacher{
kind: kind,
req: req,
client: client,
memc: memcache.NewDriver(gae.NewContext(req), logger),
logger: logger,
}, nil
}
// NewDriver creates a new datastore driver.
func (kind *Kind) NewDriver(req *wcg.Request) (*ds.Driver, error) {
ctx := gae.NewContext(req)
if kind.Host != "" {
var err error
ctx, err = newRemoteAPIContext(req, kind.Host)
if err != nil {
return nil, err
}
}
driver := ds.NewDriver(ctx, string(kind.Name), req.Logger)
if kind.Namespace != "" {
driver.Namespace(kind.Namespace)
}
return driver, nil
}
func newRemoteAPIContext(req *wcg.Request, host string) (context.Context, error) {
// TODO: migrate file to datastore?
if !lib.IsOnLocalGAE() && !req.IsTest() {
return nil, fmt.Errorf("RemoteAPI use on GAE is not supported yet.")
}
var hc *http.Client
var err error
const defaultCredentialEnvKey = "GOOGLE_APPLICATION_CREDENTIALS"
if os.Getenv(defaultCredentialEnvKey) != "" {
hc, err = google.DefaultClient(gae.NewContext(req), remoteCtxScopes...)
} else {
return nil, ErrNoRemoteAPIKeyIsConfigured
}
if err != nil {
return nil, err
}
return remote_api.NewRemoteContext(host, hc)
}
func (cacher *ImageCacher) getAlbumName() string {
var s string
if cacher.req.IsTest() {
if lib.IsCI() {
s = "test@ci"
} else {
hostname, _ := os.Hostname()
s = fmt.Sprintf("test@%s", hostname)
}
} else if lib.IsOnLocalGAE() {
hostname, _ := os.Hostname()
s = fmt.Sprintf("local@%s", hostname)
} else {
s = fmt.Sprintf("GAE@%s", appengine.AppID(gae.NewContext(cacher.req)))
}
if cacher.kind.Namespace != "" {
s = fmt.Sprintf("%s:%s", s, cacher.kind.Namespace)
}
return s
}
func bySession(router *wcg.Router, configure func()) {
fbconfig := facebook.NewAuthConfig("dummy", "dumyy", "")
fbconfig.RedirectURL = "/login/facebook/callback"
fbconfig.ContextFactory = func(res *wcg.Response, req *wcg.Request) context.Context {
return gae.NewContext(req)
}
fbconfig.UnauthorizedHandler = wcg.AnonymousHandler(func(res *wcg.Response, req *wcg.Request) {
res.TemplatesWithStatus(401, nil, "permrejected.html", "header.html", "footer.html")
})
fbconfig.AuthorizedHandler = wcg.AnonymousHandler(func(res *wcg.Response, req *wcg.Request) {
ref, _ := req.Session.Get("LoginRef")
if ref != "" && strings.HasPrefix(ref, "/") {
res.Redirect(wcg.AbsoluteURL(req, ref), http.StatusFound)
} else {
res.Redirect("/", http.StatusFound)
}
})
fbconfig.InvalidatedHandler = wcg.AnonymousHandler(func(res *wcg.Response, req *wcg.Request) {
req.Logger.Debugf("Guest user access.")
})
fbconfig.Scopes = []string{}
fbauth, fbcallback, fbvalidates, fblogout := middleware.OAuth2(fbconfig)
// set routes
router.Before(wcg.NewNamedHandler("facebook.validate", func(res *wcg.Response, req *wcg.Request) {
if !request.ByGuest(req) { // already authenticated
return
}
if req.Session == nil {
return
}
// Check the fbconfig from ServerConfig
fbapp := configs.GetMultiValues(
req,
"facebook_app_id",
"facebook_app_secret",
"facebook_page_id",
)
if fbapp[0] != "" && fbapp[1] != "" {
fbconfig.ClientID = fbapp[0]
fbconfig.ClientSecret = fbapp[1]
fbvalidates.Process(res, req)
}
}))
router.GET("/login/facebook", wcg.NewNamedHandler("facebook.login.auth", func(res *wcg.Response, req *wcg.Request) {
if !isFBConfigured(fbconfig) {
return
}
req.Session.Set("LoginRef", req.Query("ref"))
fbauth.Process(res, req)
}))
router.GET("/login/facebook/callback", wcg.NewNamedHandler("facebook.login.callback", func(res *wcg.Response, req *wcg.Request) {
if !isFBConfigured(fbconfig) {
return
}
fbcallback.Process(res, req)
}))
router.POST("/logout/facebook", wcg.NewNamedHandler("facebook.logout", func(res *wcg.Response, req *wcg.Request) {
if !isFBConfigured(fbconfig) {
return
}
fblogout.Process(res, req)
res.Redirect("/", http.StatusFound)
}))
configure()
}
func setupAPIOAuth2(app *server.App) {
var API = app.API()
API.GET("/oauth2/clients/",
middleware.EntityAll(entities.OAuth2ClientSettings.Query()))
API.GET("/oauth2/clients/:key.json",
middleware.EntityGet(entities.OAuth2ClientSettings.Get().Cache(true), "key"))
// Create an oauth2.Config object into session and redirect to the oauth2 endpoint.
// /admin/oauth2/callback.html will finally authorize the callback code and store the oauth2.Config into datastore.
API.POST("/oauth2/clients/",
middleware.ParseForm(func(v *validators.FormValidator) {
v.Field("key").Required()
v.Field("client_id").Required()
v.Field("client_secret").Required()
v.Field("auth_url").Required()
v.Field("token_url").Required()
}),
server.Handler(func(req *wcg.Request) response.Response {
cfg := &oauth2.Config{
ClientID: req.Form("client_id"),
ClientSecret: req.Form("client_secret"),
Endpoint: oauth2.Endpoint{
AuthURL: req.Form("auth_url"),
TokenURL: req.Form("token_url"),
},
Scopes: strings.Split(req.Form("scopes"), ","),
RedirectURL: wcg.AbsoluteURL(
req,
fmt.Sprintf("/api/admin/oauth2/callback/?oauth2_key=%s", req.Form("key")),
),
}
data := wcg.DataBag{}
data.Set("key", req.Form("key"))
data.Set("client_id", cfg.ClientID)
data.Set("client_secret", cfg.ClientSecret)
data.Set("auth_url", cfg.Endpoint.AuthURL)
data.Set("token_url", cfg.Endpoint.TokenURL)
data.Set("scopes", req.Form("scopes"))
data.Set("redirect_url", cfg.RedirectURL)
req.Session.SetData(
fmt.Sprintf("admin.oauth2_%s", req.Form("key")),
data,
)
return response.NewRedirect(cfg.AuthCodeURL("state", oauth2.AccessTypeOffline), response.RedirectSeeOther)
}))
API.DELETE("/oauth2/clients/:client_id.json",
middleware.EntityDelete(entities.OAuth2ClientSettings.Delete(), "client_id"))
API.GET("/oauth2/callback/",
server.Handler(func(req *wcg.Request) response.Response {
key := req.Query("oauth2_key")
code := req.Query("code")
data, ok := req.Session.GetData(fmt.Sprintf("admin.oauth2_%s", key))
if !ok {
return response.NotFound(req)
}
scopes, _ := data.Get("scopes")
cfg := &oauth2.Config{}
cfg.ClientID, _ = data.Get("client_id")
cfg.ClientSecret, _ = data.Get("client_secret")
cfg.Endpoint.AuthURL, _ = data.Get("auth_url")
cfg.Endpoint.TokenURL, _ = data.Get("token_url")
cfg.Scopes = strings.Split(scopes, ",")
cfg.RedirectURL, _ = data.Get("redirect_url")
token, err := cfg.Exchange(gae.NewContext(req), code)
if err != nil {
return response.BadRequest(req, err)
}
settings := models.NewOAuth2ClientSettings(cfg, token)
settings.Key = key
entities.OAuth2ClientSettings.Put().Key(key).MustUpdate(req, settings)
return response.NewRedirect("/admin/oauth2/", response.RedirectSeeOther)
}))
}
