// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_LOADER_FETCH_SCRIPT_FETCH_OPTIONS_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_LOADER_FETCH_SCRIPT_FETCH_OPTIONS_H_

#include "services/network/public/mojom/referrer_policy.mojom-blink-forward.h"
#include "third_party/blink/public/mojom/fetch/fetch_api_request.mojom-blink-forward.h"
#include "third_party/blink/public/platform/web_url_request.h"
#include "third_party/blink/renderer/platform/loader/fetch/cross_origin_attribute_value.h"
#include "third_party/blink/renderer/platform/loader/fetch/fetch_parameters.h"
#include "third_party/blink/renderer/platform/loader/fetch/integrity_metadata.h"
#include "third_party/blink/renderer/platform/loader/fetch/render_blocking_behavior.h"
#include "third_party/blink/renderer/platform/loader/fetch/resource_loader_options.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
#include "third_party/blink/renderer/platform/wtf/text/text_encoding.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"

namespace blink {

class DOMWrapperWorld;
class FeatureContext;
class KURL;
class SecurityOrigin;

// ScriptFetchOptions corresponds to the spec concept "script fetch options".
// https://html.spec.whatwg.org/C/#script-fetch-options
class PLATFORM_EXPORT ScriptFetchOptions final {
  DISALLOW_NEW();

 public:
  // https://html.spec.whatwg.org/C/#default-classic-script-fetch-options
  // "The default classic script fetch options are a script fetch options whose
  // cryptographic nonce is the empty string, integrity metadata is the empty
  // string, parser metadata is "not-parser-inserted", credentials mode is
  // "same-origin", and referrer policy is the empty string." [spec text]
  ScriptFetchOptions();
  ScriptFetchOptions(const String& nonce,
                     const IntegrityMetadataSet& integrity_metadata,
                     const String& integrity_attribute,
                     ParserDisposition parser_state,
                     network::mojom::CredentialsMode credentials_mode,
                     network::mojom::ReferrerPolicy referrer_policy,
                     mojom::blink::FetchPriorityHint fetch_priority_hint,
                     RenderBlockingBehavior render_blocking_behavior);
  ~ScriptFetchOptions();

  const String& Nonce() const { return nonce_; }
  const IntegrityMetadataSet& GetIntegrityMetadata() const {
    return integrity_metadata_;
  }
  void SetIntegrityMetadata(IntegrityMetadataSet metadata) {
    integrity_metadata_ = metadata;
  }
  const String& GetIntegrityAttributeValue() const {
    return integrity_attribute_;
  }
  void SetIntegrityAttributeValue(const String& value) {
    integrity_attribute_ = value;
  }
  const ParserDisposition& ParserState() const { return parser_state_; }
  network::mojom::CredentialsMode CredentialsMode() const {
    return credentials_mode_;
  }
  network::mojom::ReferrerPolicy GetReferrerPolicy() const {
    return referrer_policy_;
  }
  mojom::blink::FetchPriorityHint FetchPriorityHint() const {
    return fetch_priority_hint_;
  }
  RenderBlockingBehavior GetRenderBlockingBehavior() const {
    return render_blocking_behavior_;
  }

  // See documentation above the `referrer_policy_` member.
  void UpdateReferrerPolicyAfterResponseReceived(
      network::mojom::ReferrerPolicy response_referrer_policy) const {
    referrer_policy_ = response_referrer_policy;
  }

  // https://html.spec.whatwg.org/C/#fetch-a-classic-script
  // Steps 1 and 3.
  FetchParameters CreateFetchParameters(const KURL&,
                                        const SecurityOrigin*,
                                        const DOMWrapperWorld* world,
                                        CrossOriginAttributeValue,
                                        const TextEncoding&,
                                        FetchParameters::DeferOption,
                                        const FeatureContext*) const;

 private:
  // https://html.spec.whatwg.org/C/#concept-script-fetch-options-nonce
  const String nonce_;

  // https://html.spec.whatwg.org/C/#concept-script-fetch-options-integrity
  IntegrityMetadataSet integrity_metadata_;
  String integrity_attribute_;

  // https://html.spec.whatwg.org/C/#concept-script-fetch-options-parser
  const ParserDisposition parser_state_;

  // https://html.spec.whatwg.org/C/#concept-script-fetch-options-credentials
  const network::mojom::CredentialsMode credentials_mode_;

  // https://html.spec.whatwg.org/C/#concept-script-fetch-options-referrer-policy
  // "This policy can mutate after a module script's response is received, to be
  // the referrer policy parsed from the response, and used when fetching any
  // module dependencies." [spec text].
  mutable network::mojom::ReferrerPolicy referrer_policy_;

  // https://wicg.github.io/priority-hints/#script
  const mojom::blink::FetchPriorityHint fetch_priority_hint_;

  const RenderBlockingBehavior render_blocking_behavior_ =
      RenderBlockingBehavior::kUnset;
};

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_LOADER_FETCH_SCRIPT_FETCH_OPTIONS_H_