blob: 122c5ead79096c2fb148d11206e8071f48671074 [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_PUBLIC_COMMON_REFERRER_H_
#define CONTENT_PUBLIC_COMMON_REFERRER_H_
#include "base/logging.h"
#include "content/common/content_export.h"
#include "third_party/WebKit/public/platform/WebReferrerPolicy.h"
#include "url/gurl.h"
namespace content {
// This struct holds a referrer URL, as well as the referrer policy to be
// applied to this URL. When passing around referrers that will eventually end
// up being used for URL requests, always use this struct.
struct CONTENT_EXPORT Referrer {
Referrer(const GURL& url, blink::WebReferrerPolicy policy) : url(url),
policy(policy) {
}
Referrer() : policy(blink::WebReferrerPolicyDefault) {
}
GURL url;
blink::WebReferrerPolicy policy;
static Referrer SanitizeForRequest(const GURL& request,
const Referrer& referrer) {
Referrer sanitized_referrer(referrer.url.GetAsReferrer(), referrer.policy);
if (!request.SchemeIsHTTPOrHTTPS() ||
!sanitized_referrer.url.SchemeIsHTTPOrHTTPS()) {
sanitized_referrer.url = GURL();
return sanitized_referrer;
}
switch (sanitized_referrer.policy) {
case blink::WebReferrerPolicyDefault:
if (sanitized_referrer.url.SchemeIsSecure() &&
!request.SchemeIsSecure()) {
sanitized_referrer.url = GURL();
}
break;
case blink::WebReferrerPolicyAlways:
break;
case blink::WebReferrerPolicyNever:
sanitized_referrer.url = GURL();
break;
case blink::WebReferrerPolicyOrigin:
sanitized_referrer.url = sanitized_referrer.url.GetOrigin();
break;
default:
NOTREACHED();
break;
}
return sanitized_referrer;
}
};
} // namespace content
#endif // CONTENT_PUBLIC_COMMON_REFERRER_H_