mirror of
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8ec57d145e
Re-added cobra patch 499475bb41
143 lines
5.2 KiB
Go
143 lines
5.2 KiB
Go
// Copyright 2011 Google Inc. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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package appengine
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import (
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"time"
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"golang.org/x/net/context"
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"google.golang.org/appengine/internal"
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pb "google.golang.org/appengine/internal/app_identity"
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modpb "google.golang.org/appengine/internal/modules"
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)
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// AppID returns the application ID for the current application.
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// The string will be a plain application ID (e.g. "appid"), with a
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// domain prefix for custom domain deployments (e.g. "example.com:appid").
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func AppID(c context.Context) string { return internal.AppID(c) }
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// DefaultVersionHostname returns the standard hostname of the default version
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// of the current application (e.g. "my-app.appspot.com"). This is suitable for
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// use in constructing URLs.
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func DefaultVersionHostname(c context.Context) string {
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return internal.DefaultVersionHostname(c)
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}
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// ModuleName returns the module name of the current instance.
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func ModuleName(c context.Context) string {
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return internal.ModuleName(c)
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}
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// ModuleHostname returns a hostname of a module instance.
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// If module is the empty string, it refers to the module of the current instance.
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// If version is empty, it refers to the version of the current instance if valid,
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// or the default version of the module of the current instance.
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// If instance is empty, ModuleHostname returns the load-balancing hostname.
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func ModuleHostname(c context.Context, module, version, instance string) (string, error) {
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req := &modpb.GetHostnameRequest{}
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if module != "" {
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req.Module = &module
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}
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if version != "" {
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req.Version = &version
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}
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if instance != "" {
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req.Instance = &instance
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}
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res := &modpb.GetHostnameResponse{}
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if err := internal.Call(c, "modules", "GetHostname", req, res); err != nil {
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return "", err
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}
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return *res.Hostname, nil
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}
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// VersionID returns the version ID for the current application.
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// It will be of the form "X.Y", where X is specified in app.yaml,
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// and Y is a number generated when each version of the app is uploaded.
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// It does not include a module name.
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func VersionID(c context.Context) string { return internal.VersionID(c) }
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// InstanceID returns a mostly-unique identifier for this instance.
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func InstanceID() string { return internal.InstanceID() }
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// Datacenter returns an identifier for the datacenter that the instance is running in.
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func Datacenter(c context.Context) string { return internal.Datacenter(c) }
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// ServerSoftware returns the App Engine release version.
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// In production, it looks like "Google App Engine/X.Y.Z".
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// In the development appserver, it looks like "Development/X.Y".
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func ServerSoftware() string { return internal.ServerSoftware() }
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// RequestID returns a string that uniquely identifies the request.
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func RequestID(c context.Context) string { return internal.RequestID(c) }
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// AccessToken generates an OAuth2 access token for the specified scopes on
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// behalf of service account of this application. This token will expire after
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// the returned time.
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func AccessToken(c context.Context, scopes ...string) (token string, expiry time.Time, err error) {
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req := &pb.GetAccessTokenRequest{Scope: scopes}
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res := &pb.GetAccessTokenResponse{}
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err = internal.Call(c, "app_identity_service", "GetAccessToken", req, res)
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if err != nil {
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return "", time.Time{}, err
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}
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return res.GetAccessToken(), time.Unix(res.GetExpirationTime(), 0), nil
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}
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// Certificate represents a public certificate for the app.
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type Certificate struct {
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KeyName string
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Data []byte // PEM-encoded X.509 certificate
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}
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// PublicCertificates retrieves the public certificates for the app.
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// They can be used to verify a signature returned by SignBytes.
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func PublicCertificates(c context.Context) ([]Certificate, error) {
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req := &pb.GetPublicCertificateForAppRequest{}
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res := &pb.GetPublicCertificateForAppResponse{}
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if err := internal.Call(c, "app_identity_service", "GetPublicCertificatesForApp", req, res); err != nil {
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return nil, err
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}
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var cs []Certificate
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for _, pc := range res.PublicCertificateList {
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cs = append(cs, Certificate{
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KeyName: pc.GetKeyName(),
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Data: []byte(pc.GetX509CertificatePem()),
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})
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}
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return cs, nil
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}
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// ServiceAccount returns a string representing the service account name, in
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// the form of an email address (typically app_id@appspot.gserviceaccount.com).
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func ServiceAccount(c context.Context) (string, error) {
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req := &pb.GetServiceAccountNameRequest{}
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res := &pb.GetServiceAccountNameResponse{}
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err := internal.Call(c, "app_identity_service", "GetServiceAccountName", req, res)
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if err != nil {
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return "", err
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}
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return res.GetServiceAccountName(), err
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}
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// SignBytes signs bytes using a private key unique to your application.
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func SignBytes(c context.Context, bytes []byte) (keyName string, signature []byte, err error) {
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req := &pb.SignForAppRequest{BytesToSign: bytes}
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res := &pb.SignForAppResponse{}
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if err := internal.Call(c, "app_identity_service", "SignForApp", req, res); err != nil {
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return "", nil, err
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}
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return res.GetKeyName(), res.GetSignatureBytes(), nil
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}
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func init() {
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internal.RegisterErrorCodeMap("app_identity_service", pb.AppIdentityServiceError_ErrorCode_name)
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internal.RegisterErrorCodeMap("modules", modpb.ModulesServiceError_ErrorCode_name)
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}
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