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/*
* Copyright (C) 2016 Canon Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted, provided that the following conditions
* are required to be met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name of Canon 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 CANON INC. AND ITS 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 CANON INC. AND ITS 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 "config.h"
#include "FetchLoader.h"
#include "BlobURL.h"
#include "CachedResourceRequestInitiatorTypes.h"
#include "ContentSecurityPolicy.h"
#include "FetchBody.h"
#include "FetchBodyConsumer.h"
#include "FetchLoaderClient.h"
#include "FetchRequest.h"
#include "ResourceError.h"
#include "ResourceRequest.h"
#include "ScriptExecutionContext.h"
#include "SecurityOrigin.h"
#include "SharedBuffer.h"
#include "TextResourceDecoder.h"
#include "ThreadableBlobRegistry.h"
namespace WebCore {
void FetchLoader::start(ScriptExecutionContext& context, const Blob& blob)
{
return startLoadingBlobURL(context, blob.url());
}
void FetchLoader::startLoadingBlobURL(ScriptExecutionContext& context, const URL& blobURL)
{
m_urlForReading = { BlobURL::createPublicURL(context.securityOrigin()), context.topOrigin().data() };
if (m_urlForReading.isEmpty()) {
m_client.didFail({ errorDomainWebKitInternal, 0, URL(), "Could not create URL for Blob"_s });
return;
}
ThreadableBlobRegistry::registerBlobURL(context.securityOrigin(), context.policyContainer(), m_urlForReading, blobURL);
ResourceRequest request(m_urlForReading);
request.setInitiatorIdentifier(context.resourceRequestIdentifier());
request.setHTTPMethod("GET"_s);
ThreadableLoaderOptions options;
options.sendLoadCallbacks = SendCallbackPolicy::SendCallbacks;
options.dataBufferingPolicy = DataBufferingPolicy::DoNotBufferData;
options.preflightPolicy = PreflightPolicy::Consider;
options.credentials = FetchOptions::Credentials::Include;
options.mode = FetchOptions::Mode::SameOrigin;
options.contentSecurityPolicyEnforcement = ContentSecurityPolicyEnforcement::DoNotEnforce;
m_loader = ThreadableLoader::create(context, *this, WTFMove(request), options);
m_isStarted = m_loader;
}
void FetchLoader::start(ScriptExecutionContext& context, const FetchRequest& request, const String& initiator)
{
ResourceLoaderOptions resourceLoaderOptions = request.fetchOptions();
resourceLoaderOptions.preflightPolicy = PreflightPolicy::Consider;
ThreadableLoaderOptions options(resourceLoaderOptions,
context.shouldBypassMainWorldContentSecurityPolicy() ? ContentSecurityPolicyEnforcement::DoNotEnforce : ContentSecurityPolicyEnforcement::EnforceConnectSrcDirective,
String(initiator),
ResponseFilteringPolicy::Disable);
options.sendLoadCallbacks = SendCallbackPolicy::SendCallbacks;
options.dataBufferingPolicy = DataBufferingPolicy::DoNotBufferData;
options.sameOriginDataURLFlag = SameOriginDataURLFlag::Set;
options.navigationPreloadIdentifier = request.navigationPreloadIdentifier();
options.contentEncodingSniffingPolicy = ContentEncodingSniffingPolicy::Disable;
if (context.settingsValues().fetchPriorityEnabled)
options.fetchPriorityHint = request.fetchPriorityHint();
ResourceRequest fetchRequest = request.resourceRequest();
ASSERT(context.contentSecurityPolicy());
auto& contentSecurityPolicy = *context.contentSecurityPolicy();
contentSecurityPolicy.upgradeInsecureRequestIfNeeded(fetchRequest, ContentSecurityPolicy::InsecureRequestType::Load);
if (!context.shouldBypassMainWorldContentSecurityPolicy() && !contentSecurityPolicy.allowConnectToSource(fetchRequest.url())) {
m_client.didFail({ errorDomainWebKitInternal, 0, fetchRequest.url(), "Not allowed by ContentSecurityPolicy"_s, ResourceError::Type::AccessControl });
return;
}
String referrer = request.internalRequestReferrer();
if (referrer == "no-referrer"_s) {
options.referrerPolicy = ReferrerPolicy::NoReferrer;
referrer = String();
} else
referrer = (referrer == "client"_s) ? context.url().strippedForUseAsReferrer() : URL(context.url(), referrer).strippedForUseAsReferrer();
if (options.referrerPolicy == ReferrerPolicy::EmptyString)
options.referrerPolicy = context.referrerPolicy();
m_loader = ThreadableLoader::create(context, *this, WTFMove(fetchRequest), options, WTFMove(referrer));
m_isStarted = m_loader;
}
FetchLoader::FetchLoader(FetchLoaderClient& client, FetchBodyConsumer* consumer)
: m_client(client)
, m_consumer(consumer)
{
}
void FetchLoader::stop()
{
if (m_consumer)
m_consumer->clean();
if (m_loader)
m_loader->cancel();
}
RefPtr<FragmentedSharedBuffer> FetchLoader::startStreaming()
{
ASSERT(m_consumer);
auto firstChunk = m_consumer->takeData();
m_consumer = nullptr;
return firstChunk;
}
void FetchLoader::didReceiveResponse(ResourceLoaderIdentifier, const ResourceResponse& response)
{
m_client.didReceiveResponse(response);
}
void FetchLoader::didReceiveData(const SharedBuffer& buffer)
{
if (!m_consumer) {
m_client.didReceiveData(buffer);
return;
}
m_consumer->append(buffer);
}
void FetchLoader::didFinishLoading(ResourceLoaderIdentifier, const NetworkLoadMetrics& metrics)
{
m_client.didSucceed(metrics);
}
void FetchLoader::didFail(const ResourceError& error)
{
m_client.didFail(error);
}
} // namespace WebCore
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