37 lines
1.2 KiB
Go
37 lines
1.2 KiB
Go
// Copyright 2018 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package auth
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import (
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"gvisor.googlesource.com/gvisor/pkg/sentry/context"
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)
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// contextID is the auth package's type for context.Context.Value keys.
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type contextID int
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const (
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// CtxCredentials is a Context.Value key for Credentials.
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CtxCredentials contextID = iota
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)
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// CredentialsFromContext returns a copy of the Credentials used by ctx, or a
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// set of Credentials with no capabilities if ctx does not have Credentials.
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func CredentialsFromContext(ctx context.Context) *Credentials {
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if v := ctx.Value(CtxCredentials); v != nil {
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return v.(*Credentials)
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}
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return NewAnonymousCredentials()
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}
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