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3a6776ada7
This library no longer builds on Go versions prior to Go 1.17, so no longer needs to support compilation specific to AppEngine environments on Go versions prior to Go 1.11 Related to #615 Change-Id: Ia9579ea2091cb86ee96065affb920370c4ba33ea Reviewed-on: https://go-review.googlesource.com/c/oauth2/+/570595 Reviewed-by: Matt Hickford <matt.hickford@gmail.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Cody Oss <codyoss@google.com> Run-TryBot: Matt Hickford <matt.hickford@gmail.com> TryBot-Result: Gopher Robot <gobot@golang.org>
41 lines
1.8 KiB
Go
41 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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"log"
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"sync"
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"golang.org/x/oauth2"
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)
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var logOnce sync.Once // only spam about deprecation once
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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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// The current version of this library requires at least Go 1.17 to build,
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// so first generation App Engine runtimes (<= Go 1.9) are unsupported.
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// Previously, on first generation App Engine runtimes, AppEngineTokenSource
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// returned 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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logOnce.Do(func() {
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log.Print("google: AppEngineTokenSource is deprecated on App Engine standard second generation runtimes (>= Go 1.11) and App Engine flexible. Please use DefaultTokenSource or ComputeTokenSource.")
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})
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return ComputeTokenSource("")
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}
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