forked from TrueCloudLab/distribution
26 lines
761 B
Go
26 lines
761 B
Go
|
// Copyright 2012 Google Inc. All rights reserved.
|
||
|
|
// Use of this source code is governed by the Apache 2.0
|
||
|
|
// license that can be found in the LICENSE file.
|
||
|
|
|
||
|
|
package appengine
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"regexp"
|
||
|
|
|
||
|
|
"golang.org/x/net/context"
|
||
|
|
|
||
|
|
"google.golang.org/appengine/internal"
|
||
|
|
)
|
||
|
|
|
||
|
|
// Namespace returns a replacement context that operates within the given namespace.
|
||
|
|
func Namespace(c context.Context, namespace string) (context.Context, error) {
|
||
|
|
if !validNamespace.MatchString(namespace) {
|
||
|
|
return nil, fmt.Errorf("appengine: namespace %q does not match /%s/", namespace, validNamespace)
|
||
|
|
}
|
||
|
|
return internal.NamespacedContext(c, namespace), nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// validNamespace matches valid namespace names.
|
||
|
|
var validNamespace = regexp.MustCompile(`^[0-9A-Za-z._-]{0,100}$`)
|