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/*
* Copyright (C) 2012 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:
* 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.
*
* THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``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 APPLE COMPUTER, INC. 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/platform/loader/fetch/fetch_parameters.h"
#include <memory>
#include "third_party/blink/renderer/platform/loader/fetch/resource_fetcher.h"
#include "third_party/blink/renderer/platform/weborigin/kurl.h"
#include "third_party/blink/renderer/platform/weborigin/security_origin.h"
namespace blink {
FetchParameters::FetchParameters(const ResourceRequest& resource_request)
: resource_request_(resource_request),
decoder_options_(TextResourceDecoderOptions::kPlainTextContent),
speculative_preload_type_(SpeculativePreloadType::kNotSpeculative),
defer_(kNoDefer),
origin_restriction_(kUseDefaultOriginRestrictionForType),
placeholder_image_request_type_(kDisallowPlaceholder) {}
FetchParameters::FetchParameters(
std::unique_ptr<CrossThreadFetchParametersData> data)
: resource_request_(data->resource_request.get()),
decoder_options_(data->decoder_options),
options_(data->options),
speculative_preload_type_(data->speculative_preload_type),
defer_(data->defer),
origin_restriction_(data->origin_restriction),
resource_width_(data->resource_width),
client_hint_preferences_(data->client_hint_preferences),
placeholder_image_request_type_(data->placeholder_image_request_type) {}
FetchParameters::FetchParameters(const ResourceRequest& resource_request,
const ResourceLoaderOptions& options)
: resource_request_(resource_request),
decoder_options_(TextResourceDecoderOptions::kPlainTextContent),
options_(options),
speculative_preload_type_(SpeculativePreloadType::kNotSpeculative),
defer_(kNoDefer),
origin_restriction_(kUseDefaultOriginRestrictionForType),
placeholder_image_request_type_(kDisallowPlaceholder) {}
FetchParameters::~FetchParameters() = default;
void FetchParameters::SetCrossOriginAccessControl(
const SecurityOrigin* origin,
CrossOriginAttributeValue cross_origin) {
switch (cross_origin) {
case kCrossOriginAttributeNotSet:
NOTREACHED();
break;
case kCrossOriginAttributeAnonymous:
SetCrossOriginAccessControl(
origin, network::mojom::FetchCredentialsMode::kSameOrigin);
break;
case kCrossOriginAttributeUseCredentials:
SetCrossOriginAccessControl(
origin, network::mojom::FetchCredentialsMode::kInclude);
break;
}
}
void FetchParameters::SetCrossOriginAccessControl(
const SecurityOrigin* origin,
network::mojom::FetchCredentialsMode credentials_mode) {
// Currently FetchParametersMode is only used when the request goes to
// Service Worker.
resource_request_.SetFetchRequestMode(
network::mojom::FetchRequestMode::kCORS);
resource_request_.SetFetchCredentialsMode(credentials_mode);
options_.security_origin = origin;
// TODO: Credentials should be removed only when the request is cross origin.
resource_request_.RemoveUserAndPassFromURL();
if (origin)
resource_request_.SetHTTPOrigin(origin);
}
void FetchParameters::SetResourceWidth(ResourceWidth resource_width) {
if (resource_width.is_set) {
resource_width_.width = resource_width.width;
resource_width_.is_set = true;
}
}
void FetchParameters::SetSpeculativePreloadType(
SpeculativePreloadType speculative_preload_type,
double discovery_time) {
speculative_preload_type_ = speculative_preload_type;
}
void FetchParameters::MakeSynchronous() {
// Synchronous requests should always be max priority, lest they hang the
// renderer.
resource_request_.SetPriority(ResourceLoadPriority::kHighest);
// Skip ServiceWorker for synchronous loads from the main thread to avoid
// deadlocks.
if (IsMainThread())
resource_request_.SetSkipServiceWorker(true);
options_.synchronous_policy = kRequestSynchronously;
}
void FetchParameters::SetAllowImagePlaceholder() {
DCHECK_EQ(kDisallowPlaceholder, placeholder_image_request_type_);
if (!resource_request_.Url().ProtocolIsInHTTPFamily() ||
resource_request_.HttpMethod() != "GET" ||
!resource_request_.HttpHeaderField("range").IsNull()) {
// Make sure that the request isn't marked as using Client Lo-Fi, since
// without loading an image placeholder, Client Lo-Fi isn't really in use.
resource_request_.SetPreviewsState(resource_request_.GetPreviewsState() &
~(WebURLRequest::kClientLoFiOn));
return;
}
placeholder_image_request_type_ = kAllowPlaceholder;
// Fetch the first few bytes of the image. This number is tuned to both (a)
// likely capture the entire image for small images and (b) likely contain
// the dimensions for larger images.
// TODO(sclittle): Calculate the optimal value for this number.
resource_request_.SetHTTPHeaderField("range", "bytes=0-2047");
// TODO(sclittle): Indicate somehow (e.g. through a new request bit) to the
// embedder that it should return the full resource if the entire resource is
// fresh in the cache.
}
std::unique_ptr<CrossThreadFetchParametersData> FetchParameters::CopyData()
const {
auto data = std::make_unique<CrossThreadFetchParametersData>();
data->resource_request = resource_request_.CopyData();
data->decoder_options = decoder_options_;
data->options = CrossThreadResourceLoaderOptionsData(options_);
data->speculative_preload_type = speculative_preload_type_;
data->defer = defer_;
data->origin_restriction = origin_restriction_;
data->resource_width = resource_width_;
data->client_hint_preferences = client_hint_preferences_;
data->placeholder_image_request_type = placeholder_image_request_type_;
return data;
}
} // namespace blink
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