forked from Mirrors/oauth2
38 lines
1.0 KiB
Go
38 lines
1.0 KiB
Go
// Copyright 2014 The oauth2 Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build appenginevm
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package google
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import (
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"time"
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"golang.org/x/net/context"
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"golang.org/x/oauth2"
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"google.golang.org/appengine"
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)
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// AppEngineTokenSource returns a token source that fetches tokens
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// issued to the current App Engine application's service account.
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// If you are implementing a 3-legged OAuth 2.0 flow on App Engine
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// that involves user accounts, see oauth2.Config instead.
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//
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// The provided context must have come from appengine.NewContext.
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func AppEngineTokenSource(ctx oauth2.Context, scope ...string) oauth2.TokenSource {
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return &appEngineTokenSource{
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ctx: ctx,
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scopes: scope,
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fetcherFunc: aeVMFetcherFunc,
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}
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}
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var aeVMFetcherFunc = func(ctx oauth2.Context, scope ...string) (string, time.Time, error) {
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c, ok := ctx.(context.Context)
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if !ok {
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return "", time.Time{}, errInvalidContext
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}
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return appengine.AccessToken(c, scope...)
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}
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