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// Copyright 2017 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/platform/loader/fetch/script_fetch_options.h"
#include "third_party/blink/renderer/platform/weborigin/kurl.h"
#include "third_party/blink/renderer/platform/weborigin/security_origin.h"
namespace blink {
// https://html.spec.whatwg.org/C/#fetch-a-classic-script
FetchParameters ScriptFetchOptions::CreateFetchParameters(
const KURL& url,
const SecurityOrigin* security_origin,
CrossOriginAttributeValue cross_origin,
const WTF::TextEncoding& encoding,
FetchParameters::DeferOption defer) const {
// Step 1. Let request be the result of creating a potential-CORS request
// given url, ... [spec text]
ResourceRequest resource_request(url);
// Step 1. ... "script", ... [spec text]
ResourceLoaderOptions resource_loader_options;
resource_loader_options.initiator_info.name = "script";
FetchParameters params(resource_request, resource_loader_options);
params.SetRequestContext(mojom::RequestContextType::SCRIPT);
// Step 1. ... and CORS setting. [spec text]
if (cross_origin != kCrossOriginAttributeNotSet)
params.SetCrossOriginAccessControl(security_origin, cross_origin);
// Step 2. Set request's client to settings object. [spec text]
// Note: Implemented at ClassicPendingScript::Fetch().
// Step 3. Set up the classic script request given request and options. [spec
// text]
//
// https://html.spec.whatwg.org/C/#set-up-the-classic-script-request
// Set request's cryptographic nonce metadata to options's cryptographic
// nonce, [spec text]
params.SetContentSecurityPolicyNonce(Nonce());
// its integrity metadata to options's integrity metadata, [spec text]
params.SetIntegrityMetadata(GetIntegrityMetadata());
params.MutableResourceRequest().SetFetchIntegrity(
GetIntegrityAttributeValue());
// its parser metadata to options's parser metadata, [spec text]
params.SetParserDisposition(ParserState());
// Priority Hints is currently non-standard, but we can assume the following
// (see https://crbug.com/821464):
// its importance to options's importance, [spec text]
params.MutableResourceRequest().SetFetchImportanceMode(importance_);
// its referrer policy to options's referrer policy. [spec text]
params.MutableResourceRequest().SetReferrerPolicy(referrer_policy_);
params.SetCharset(encoding);
// This DeferOption logic is only for classic scripts, as we always set
// |kLazyLoad| for module scripts in ModuleScriptLoader.
params.SetDefer(defer);
// Steps 4- are Implemented at ClassicPendingScript::Fetch().
return params;
}
} // namespace blink
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