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25 lines
761 B
Go
25 lines
761 B
Go
// Copyright 2012 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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"fmt"
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"regexp"
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"golang.org/x/net/context"
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"google.golang.org/appengine/internal"
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)
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// Namespace returns a replacement context that operates within the given namespace.
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func Namespace(c context.Context, namespace string) (context.Context, error) {
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if !validNamespace.MatchString(namespace) {
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return nil, fmt.Errorf("appengine: namespace %q does not match /%s/", namespace, validNamespace)
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}
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return internal.NamespacedContext(c, namespace), nil
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}
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// validNamespace matches valid namespace names.
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var validNamespace = regexp.MustCompile(`^[0-9A-Za-z._-]{0,100}$`)
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