forked from TrueCloudLab/distribution
38 lines
1.8 KiB
Go
38 lines
1.8 KiB
Go
// Copyright 2014 The Go 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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package google
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import (
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"context"
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"time"
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"golang.org/x/oauth2"
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)
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// Set at init time by appengine_gen1.go. If nil, we're not on App Engine standard first generation (<= Go 1.9) or App Engine flexible.
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var appengineTokenFunc func(c context.Context, scopes ...string) (token string, expiry time.Time, err error)
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// Set at init time by appengine_gen1.go. If nil, we're not on App Engine standard first generation (<= Go 1.9) or App Engine flexible.
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var appengineAppIDFunc func(c context.Context) string
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// AppEngineTokenSource returns a token source that fetches tokens from either
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// the current application's service account or from the metadata server,
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// depending on the App Engine environment. See below for environment-specific
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// details. If you are implementing a 3-legged OAuth 2.0 flow on App Engine that
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// involves user accounts, see oauth2.Config instead.
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//
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// First generation App Engine runtimes (<= Go 1.9):
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// AppEngineTokenSource returns a token source that fetches tokens issued to the
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// current App Engine application's service account. The provided context must have
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// come from appengine.NewContext.
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//
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// Second generation App Engine runtimes (>= Go 1.11) and App Engine flexible:
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// AppEngineTokenSource is DEPRECATED on second generation runtimes and on the
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// flexible environment. It delegates to ComputeTokenSource, and the provided
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// context and scopes are not used. Please use DefaultTokenSource (or ComputeTokenSource,
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// which DefaultTokenSource will use in this case) instead.
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func AppEngineTokenSource(ctx context.Context, scope ...string) oauth2.TokenSource {
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return appEngineTokenSource(ctx, scope...)
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}
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