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// Copyright 2018 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.
#include "third_party/blink/renderer/core/loader/modulescript/document_module_script_fetcher.h"
#include "third_party/blink/renderer/core/inspector/console_message.h"
#include "third_party/blink/renderer/core/script/layered_api.h"
#include "third_party/blink/renderer/platform/runtime_enabled_features.h"
#include "third_party/blink/renderer/platform/wtf/text/movable_string.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"
namespace blink {
DocumentModuleScriptFetcher::DocumentModuleScriptFetcher(
ResourceFetcher* fetcher)
: fetcher_(fetcher) {
DCHECK(fetcher_);
}
void DocumentModuleScriptFetcher::Fetch(FetchParameters& fetch_params,
ModuleGraphLevel level,
ModuleScriptFetcher::Client* client) {
DCHECK(!client_);
client_ = client;
if (FetchIfLayeredAPI(fetch_params))
return;
ScriptResource::Fetch(fetch_params, fetcher_, this);
}
void DocumentModuleScriptFetcher::NotifyFinished(Resource* resource) {
ClearResource();
ScriptResource* script_resource = ToScriptResource(resource);
HeapVector<Member<ConsoleMessage>> error_messages;
if (!WasModuleLoadSuccessful(script_resource, &error_messages)) {
client_->NotifyFetchFinished(base::nullopt, error_messages);
return;
}
ModuleScriptCreationParams params(
script_resource->GetResponse().Url(), script_resource->SourceText(),
script_resource->GetResourceRequest().GetFetchCredentialsMode(),
script_resource->CalculateAccessControlStatus(
fetcher_->Context().GetSecurityOrigin()));
client_->NotifyFetchFinished(params, error_messages);
}
void DocumentModuleScriptFetcher::Trace(blink::Visitor* visitor) {
visitor->Trace(fetcher_);
visitor->Trace(client_);
ResourceClient::Trace(visitor);
}
bool DocumentModuleScriptFetcher::FetchIfLayeredAPI(
FetchParameters& fetch_params) {
if (!RuntimeEnabledFeatures::LayeredAPIEnabled())
return false;
KURL layered_api_url = blink::layered_api::GetInternalURL(fetch_params.Url());
if (layered_api_url.IsNull())
return false;
String source_text = blink::layered_api::GetSourceText(layered_api_url);
if (source_text.IsNull()) {
HeapVector<Member<ConsoleMessage>> error_messages;
error_messages.push_back(ConsoleMessage::CreateForRequest(
kJSMessageSource, kErrorMessageLevel, "Unexpected data error",
fetch_params.Url().GetString(), nullptr, 0));
client_->NotifyFetchFinished(base::nullopt, error_messages);
return true;
}
ModuleScriptCreationParams params(
layered_api_url, MovableString(source_text.ReleaseImpl()),
fetch_params.GetResourceRequest().GetFetchCredentialsMode(),
kSharableCrossOrigin);
client_->NotifyFetchFinished(params, HeapVector<Member<ConsoleMessage>>());
return true;
}
} // namespace blink
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