dom/xhr/XMLHttpRequestWorker.h
author Mike Hommey <mh+mozilla@glandium.org>
Fri, 02 Jun 2017 15:07:58 +0900
changeset 410640 f360dd9d411e7ba61531bed2c32a0981cc6c418a
parent 409743 35d360dce251045e0a9b719fca742772641bbd1b
child 426379 586a6514e0468c383eee4f716ad789f52aa9d2a4
permissions -rw-r--r--
Bug 1369622 - Restore static asserts for lack of arguments on some macros. r=froydnj Bug 1368932 removed MOZ_STATIC_ASSERT_VALID_ARG_COUNT because it didn't actually work for large numbers of arguments. But it was kind of useful for macros that expand to something broken when they are given no variadic argument at all. Now that we have a macro that doesn't require tricks to count empty arguments lists, however, we can use straightforward static_asserts instead of a generic macro, which has the side effect of providing more context in the error message.

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_dom_XMLHttpRequestWorker_h
#define mozilla_dom_XMLHttpRequestWorker_h

#include "WorkerHolder.h"
#include "XMLHttpRequest.h"
#include "XMLHttpRequestString.h"
#include "mozilla/dom/TypedArray.h"

namespace mozilla {
namespace dom {

class Proxy;
class SendRunnable;
class DOMString;

namespace workers {
class WorkerPrivate;
}

class XMLHttpRequestWorker final : public XMLHttpRequest,
                                   public workers::WorkerHolder
{
public:
  struct StateData
  {
    XMLHttpRequestStringSnapshot mResponseText;
    nsString mResponseURL;
    uint32_t mStatus;
    nsCString mStatusText;
    uint16_t mReadyState;
    bool mFlagSend;
    JS::Heap<JS::Value> mResponse;
    nsresult mResponseTextResult;
    nsresult mStatusResult;
    nsresult mResponseResult;

    StateData()
    : mStatus(0), mReadyState(0), mFlagSend(false),
      mResponse(JS::UndefinedValue()), mResponseTextResult(NS_OK),
      mStatusResult(NS_OK), mResponseResult(NS_OK)
    { }

    void trace(JSTracer* trc);
  };

private:
  RefPtr<XMLHttpRequestUpload> mUpload;
  workers::WorkerPrivate* mWorkerPrivate;
  RefPtr<Proxy> mProxy;
  XMLHttpRequestResponseType mResponseType;
  StateData mStateData;

  uint32_t mTimeout;

  bool mRooted;
  bool mBackgroundRequest;
  bool mWithCredentials;
  bool mCanceled;

  bool mMozAnon;
  bool mMozSystem;

public:
  NS_DECL_ISUPPORTS_INHERITED
  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(XMLHttpRequestWorker,
                                                         XMLHttpRequest)


  static already_AddRefed<XMLHttpRequest>
  Construct(const GlobalObject& aGlobal,
            const MozXMLHttpRequestParameters& aParams,
            ErrorResult& aRv);

  void
  Unpin();

  bool
  Notify(workers::Status aStatus) override;

  virtual uint16_t
  ReadyState() const override
  {
    return mStateData.mReadyState;
  }

  virtual void
  Open(const nsACString& aMethod, const nsAString& aUrl,
       ErrorResult& aRv) override
  {
    Open(aMethod, aUrl, true, Optional<nsAString>(),
         Optional<nsAString>(), aRv);
  }

  virtual void
  Open(const nsACString& aMethod, const nsAString& aUrl, bool aAsync,
       const nsAString& aUsername, const nsAString& aPassword,
       ErrorResult& aRv) override
  {
    Optional<nsAString> username;
    username = &aUsername;
    Optional<nsAString> password;
    password = &aPassword;
    Open(aMethod, aUrl, aAsync, username, password, aRv);
  }

  void
  Open(const nsACString& aMethod, const nsAString& aUrl,
       bool aAsync, const Optional<nsAString>& aUser,
       const Optional<nsAString>& aPassword, ErrorResult& aRv);

  virtual void
  SetRequestHeader(const nsACString& aHeader, const nsACString& aValue,
                   ErrorResult& aRv) override;

  virtual uint32_t
  Timeout() const override
  {
    return mTimeout;
  }

  virtual void
  SetTimeout(uint32_t aTimeout, ErrorResult& aRv) override;

  virtual bool
  WithCredentials() const override
  {
    return mWithCredentials;
  }

  virtual void
  SetWithCredentials(bool aWithCredentials, ErrorResult& aRv) override;

  virtual bool
  MozBackgroundRequest() const override
  {
    return mBackgroundRequest;
  }

  virtual void
  SetMozBackgroundRequest(bool aBackgroundRequest, ErrorResult& aRv) override;

  virtual nsIChannel*
  GetChannel() const override
  {
    MOZ_CRASH("This method cannot be called on workers.");
  }

  virtual void
  GetNetworkInterfaceId(nsACString& aId) const override
  {
    MOZ_CRASH("This method cannot be called on workers.");
  }

  virtual void
  SetNetworkInterfaceId(const nsACString& aId) override
  {
    MOZ_CRASH("This method cannot be called on workers.");
  }

  virtual XMLHttpRequestUpload*
  GetUpload(ErrorResult& aRv) override;

  virtual void
  Send(JSContext* aCx, ErrorResult& aRv) override;

  virtual void
  Send(JSContext* aCx, const nsAString& aBody, ErrorResult& aRv) override;

  virtual void
  Send(JSContext* aCx, nsIInputStream* aStream, ErrorResult& aRv) override
  {
    MOZ_CRASH("This method cannot be called on workers.");
  }

  virtual void
  Send(JSContext* aCx, Blob& aBody, ErrorResult& aRv) override;

  virtual void
  Send(JSContext* aCx, FormData& aBody, ErrorResult& aRv) override;

  virtual void
  Send(JSContext* aCx, const ArrayBuffer& aBody, ErrorResult& aRv) override;

  virtual void
  Send(JSContext* aCx, const ArrayBufferView& aBody, ErrorResult& aRv) override;

  virtual void
  Send(JSContext* aCx, URLSearchParams& aBody, ErrorResult& aRv) override;

  virtual void
  Send(JSContext* aCx, nsIDocument& aDoc, ErrorResult& aRv) override
  {
    MOZ_CRASH("This method cannot be called on workers.");
  }

  virtual void
  Abort(ErrorResult& aRv) override;

  virtual void
  GetResponseURL(nsAString& aUrl) override
  {
    aUrl = mStateData.mResponseURL;
  }

  uint32_t
  GetStatus(ErrorResult& aRv) override
  {
    aRv = mStateData.mStatusResult;
    return mStateData.mStatus;
  }

  virtual void
  GetStatusText(nsACString& aStatusText, ErrorResult& aRv) override
  {
    aStatusText = mStateData.mStatusText;
  }

  virtual void
  GetResponseHeader(const nsACString& aHeader, nsACString& aResponseHeader,
                    ErrorResult& aRv) override;

  virtual void
  GetAllResponseHeaders(nsACString& aResponseHeaders,
                        ErrorResult& aRv) override;

  virtual void
  OverrideMimeType(const nsAString& aMimeType, ErrorResult& aRv) override;

  virtual XMLHttpRequestResponseType
  ResponseType() const override
  {
    return mResponseType;
  }

  virtual void
  SetResponseType(XMLHttpRequestResponseType aResponseType,
                  ErrorResult& aRv) override;

  virtual void
  GetResponse(JSContext* /* unused */, JS::MutableHandle<JS::Value> aResponse,
              ErrorResult& aRv) override;

  virtual void
  GetResponseText(DOMString& aResponseText, ErrorResult& aRv) override;

  virtual nsIDocument*
  GetResponseXML(ErrorResult& aRv) override
  {
    MOZ_CRASH("This method should not be called.");
  }

  virtual void
  GetInterface(JSContext* aCx, nsIJSID* aIID,
               JS::MutableHandle<JS::Value> aRetval,
               ErrorResult& aRv) override
  {
    aRv.Throw(NS_ERROR_FAILURE);
  }

  virtual void
  SetOriginAttributes(const mozilla::dom::OriginAttributesDictionary& aAttrs) override
  {
    MOZ_CRASH("This method cannot be called on workers.");
  }

  XMLHttpRequestUpload*
  GetUploadObjectNoCreate() const
  {
    return mUpload;
  }

  void
  UpdateState(const StateData& aStateData, bool aUseCachedArrayBufferResponse);

  void
  NullResponseText()
  {
    mStateData.mResponseText.SetVoid();
    mStateData.mResponse.setNull();
  }

  virtual uint16_t ErrorCode() const override
  {
    return 0; // eOK
  }

  virtual bool MozAnon() const override
  {
    return mMozAnon;
  }

  virtual bool MozSystem() const override
  {
    return mMozSystem;
  }

  bool
  SendInProgress() const
  {
    return mRooted;
  }

private:
  explicit XMLHttpRequestWorker(workers::WorkerPrivate* aWorkerPrivate);
  ~XMLHttpRequestWorker();

  enum ReleaseType { Default, XHRIsGoingAway, WorkerIsGoingAway };

  void
  ReleaseProxy(ReleaseType aType = Default);

  void
  MaybePin(ErrorResult& aRv);

  void
  MaybeDispatchPrematureAbortEvents(ErrorResult& aRv);

  void
  DispatchPrematureAbortEvent(EventTarget* aTarget,
                              const nsAString& aEventType, bool aUploadTarget,
                              ErrorResult& aRv);

  void
  Send(JSContext* aCx, JS::Handle<JSObject*> aBody, ErrorResult& aRv);

  void
  SendInternal(SendRunnable* aRunnable,
               ErrorResult& aRv);
};

} // dom namespace
} // mozilla namespace

#endif // mozilla_dom_workers_xmlhttprequest_h__