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/*
* Copyright (C) 2009 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/exported/shared_worker_repository_client_impl.h"
#include <memory>
#include <utility>
#include "third_party/blink/public/platform/web_content_security_policy.h"
#include "third_party/blink/public/platform/web_string.h"
#include "third_party/blink/public/platform/web_url.h"
#include "third_party/blink/public/web/blink.h"
#include "third_party/blink/public/web/web_shared_worker.h"
#include "third_party/blink/public/web/web_shared_worker_connect_listener.h"
#include "third_party/blink/public/web/web_shared_worker_repository_client.h"
#include "third_party/blink/renderer/core/dom/events/event.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/core/frame/csp/content_security_policy.h"
#include "third_party/blink/renderer/core/frame/use_counter.h"
#include "third_party/blink/renderer/core/probe/core_probes.h"
#include "third_party/blink/renderer/core/workers/shared_worker.h"
#include "third_party/blink/renderer/platform/loader/fetch/resource_response.h"
namespace blink {
namespace {
mojom::SharedWorkerCreationContextType ToCreationContextType(
bool is_secure_context) {
return is_secure_context ? mojom::SharedWorkerCreationContextType::kSecure
: mojom::SharedWorkerCreationContextType::kNonsecure;
}
} // namespace
// Implementation of the callback interface passed to the embedder. This will be
// destructed when a connection to a shared worker is established.
class SharedWorkerConnectListener final
: public WebSharedWorkerConnectListener {
public:
explicit SharedWorkerConnectListener(SharedWorker* worker)
: worker_(worker) {}
~SharedWorkerConnectListener() override {
// We have lost our connection to the worker. If this happens before
// Connected() is called, then it suggests that the document is gone or
// going away.
}
// WebSharedWorkerConnectListener overrides.
void WorkerCreated(
mojom::SharedWorkerCreationContextType creation_context_type) override {
worker_->SetIsBeingConnected(true);
// No nested workers (for now) - connect() should only be called from
// document context.
DCHECK(worker_->GetExecutionContext()->IsDocument());
DCHECK_EQ(creation_context_type,
ToCreationContextType(
worker_->GetExecutionContext()->IsSecureContext()));
}
void ScriptLoadFailed() override {
worker_->DispatchEvent(Event::CreateCancelable(EventTypeNames::error));
worker_->SetIsBeingConnected(false);
}
void Connected() override { worker_->SetIsBeingConnected(false); }
void CountFeature(WebFeature feature) override {
UseCounter::Count(worker_->GetExecutionContext(), feature);
}
Persistent<SharedWorker> worker_;
};
static WebSharedWorkerRepositoryClient::DocumentID GetId(void* document) {
DCHECK(document);
return reinterpret_cast<WebSharedWorkerRepositoryClient::DocumentID>(
document);
}
void SharedWorkerRepositoryClientImpl::Connect(
SharedWorker* worker,
MessagePortChannel port,
const KURL& url,
mojom::blink::BlobURLTokenPtr blob_url_token,
const String& name) {
DCHECK(client_);
// No nested workers (for now) - connect() should only be called from document
// context.
DCHECK(worker->GetExecutionContext()->IsDocument());
Document* document = ToDocument(worker->GetExecutionContext());
// TODO(estark): this is broken, as it only uses the first header
// when multiple might have been sent. Fix by making the
// SharedWorkerConnectListener interface take a map that can contain
// multiple headers.
Vector<CSPHeaderAndType> headers =
worker->GetExecutionContext()->GetContentSecurityPolicy()->Headers();
WebString header;
WebContentSecurityPolicyType header_type =
kWebContentSecurityPolicyTypeReport;
if (headers.size() > 0) {
header = headers[0].first;
header_type = static_cast<WebContentSecurityPolicyType>(headers[0].second);
}
bool is_secure_context = worker->GetExecutionContext()->IsSecureContext();
std::unique_ptr<WebSharedWorkerConnectListener> listener =
std::make_unique<SharedWorkerConnectListener>(worker);
client_->Connect(
url, name, GetId(document), header, header_type,
worker->GetExecutionContext()->GetSecurityContext().AddressSpace(),
ToCreationContextType(is_secure_context), std::move(port),
blob_url_token.PassInterface().PassHandle(), std::move(listener));
}
void SharedWorkerRepositoryClientImpl::DocumentDetached(Document* document) {
DCHECK(client_);
client_->DocumentDetached(GetId(document));
}
SharedWorkerRepositoryClientImpl::SharedWorkerRepositoryClientImpl(
WebSharedWorkerRepositoryClient* client)
: client_(client) {}
} // namespace blink
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