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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2019 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package store
import (
"context"
"net/http"
)
type userAgentContextKey struct{}
// ClientUserAgentContext carries the client user agent that talks to snapd
func WithClientUserAgent(parent context.Context, req *http.Request) context.Context {
ua := req.Header.Get("User-Agent")
return context.WithValue(parent, userAgentContextKey{}, ua)
}
// ClientUserAgent returns the user agent of the client that talks to snapd
func ClientUserAgent(ctx context.Context) string {
ua, ok := ctx.Value(userAgentContextKey{}).(string)
if ok {
return ua
}
return ""
}
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