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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "third_party/blink/renderer/core/loader/prerender_handle.h"
#include "services/network/public/mojom/referrer_policy.mojom-blink.h"
#include "third_party/blink/public/platform/browser_interface_broker_proxy.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/frame/local_frame_client.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/weborigin/security_policy.h"
namespace blink {
// static
PrerenderHandle* PrerenderHandle::Create(
Document& document,
const KURL& url,
mojom::blink::PrerenderTriggerType trigger_type) {
// Prerenders are unlike requests in most ways (for instance, they pass down
// fragments, and they don't return data), but they do have referrers.
if (!document.GetFrame())
return nullptr;
ExecutionContext* context = document.GetExecutionContext();
Referrer referrer = SecurityPolicy::GenerateReferrer(
context->GetReferrerPolicy(), url, context->OutgoingReferrer());
// Record an origin type of the target URL.
if (trigger_type == mojom::blink::PrerenderTriggerType::kLinkRelPrerender) {
const SecurityOrigin* initiator_origin = context->GetSecurityOrigin();
scoped_refptr<SecurityOrigin> prerendering_origin =
SecurityOrigin::Create(url);
if (prerendering_origin->IsSameOriginWith(initiator_origin)) {
UseCounter::Count(context, WebFeature::kLinkRelPrerenderSameOrigin);
} else if (prerendering_origin->IsSameSiteWith(initiator_origin)) {
UseCounter::Count(context,
WebFeature::kLinkRelPrerenderSameSiteCrossOrigin);
} else {
UseCounter::Count(context, WebFeature::kLinkRelPrerenderCrossSite);
}
}
auto attributes = mojom::blink::PrerenderAttributes::New();
attributes->url = url;
attributes->trigger_type = trigger_type;
attributes->referrer = mojom::blink::Referrer::New(
KURL(NullURL(), referrer.referrer), referrer.referrer_policy);
// TODO(bokan): This is the _frame_ size, which is affected by the viewport
// <meta> tag, and is likely not what we want to use here. For example, if a
// page sets <meta name="viewport" content="width=42"> the frame size will
// have width=42. The prerendered page is unlikely to share the same
// viewport. I think this wants the size of the outermost WebView but that's
// not currently plumbed into child renderers AFAICT.
attributes->view_size = document.GetFrame()->GetOutermostMainFrameSize();
HeapMojoRemote<mojom::blink::NoStatePrefetchProcessor> prefetch_processor(
context);
context->GetBrowserInterfaceBroker().GetInterface(
prefetch_processor.BindNewPipeAndPassReceiver(
context->GetTaskRunner(TaskType::kMiscPlatformAPI)));
prefetch_processor->Start(std::move(attributes));
return MakeGarbageCollected<PrerenderHandle>(PassKey(), context, url,
std::move(prefetch_processor));
}
PrerenderHandle::PrerenderHandle(
PassKey pass_key,
ExecutionContext* context,
const KURL& url,
HeapMojoRemote<mojom::blink::NoStatePrefetchProcessor>
remote_fetch_processor)
: url_(url),
remote_prefetch_processor_(std::move(remote_fetch_processor)) {}
PrerenderHandle::~PrerenderHandle() = default;
void PrerenderHandle::Cancel() {
if (remote_prefetch_processor_.is_bound())
remote_prefetch_processor_->Cancel();
remote_prefetch_processor_.reset();
}
const KURL& PrerenderHandle::Url() const {
return url_;
}
void PrerenderHandle::Trace(Visitor* visitor) const {
visitor->Trace(remote_prefetch_processor_);
}
} // namespace blink
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