summaryrefslogtreecommitdiffstats
path: root/dom/base/WebSocket.h
diff options
context:
space:
mode:
Diffstat (limited to 'dom/base/WebSocket.h')
-rw-r--r--dom/base/WebSocket.h209
1 files changed, 209 insertions, 0 deletions
diff --git a/dom/base/WebSocket.h b/dom/base/WebSocket.h
new file mode 100644
index 000000000..f5fd170de
--- /dev/null
+++ b/dom/base/WebSocket.h
@@ -0,0 +1,209 @@
+/* -*- 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 WebSocket_h__
+#define WebSocket_h__
+
+#include "mozilla/Attributes.h"
+#include "mozilla/dom/TypedArray.h"
+#include "mozilla/dom/WebSocketBinding.h" // for BinaryType
+#include "mozilla/DOMEventTargetHelper.h"
+#include "mozilla/ErrorResult.h"
+#include "nsCOMPtr.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsISupports.h"
+#include "nsISupportsUtils.h"
+#include "nsString.h"
+#include "nsWrapperCache.h"
+
+#define DEFAULT_WS_SCHEME_PORT 80
+#define DEFAULT_WSS_SCHEME_PORT 443
+
+class nsIInputStream;
+class nsITransportProvider;
+
+namespace mozilla {
+namespace dom {
+
+class Blob;
+
+class WebSocketImpl;
+
+class WebSocket final : public DOMEventTargetHelper
+{
+ friend class WebSocketImpl;
+
+public:
+ enum {
+ CONNECTING = 0,
+ OPEN = 1,
+ CLOSING = 2,
+ CLOSED = 3
+ };
+
+public:
+ NS_DECL_ISUPPORTS_INHERITED
+ NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS_INHERITED(
+ WebSocket, DOMEventTargetHelper)
+
+ // EventTarget
+ virtual void EventListenerAdded(nsIAtom* aType) override;
+ virtual void EventListenerRemoved(nsIAtom* aType) override;
+
+ virtual void DisconnectFromOwner() override;
+
+ // nsWrapperCache
+ nsPIDOMWindowInner* GetParentObject() { return GetOwner(); }
+
+ virtual JSObject* WrapObject(JSContext* cx, JS::Handle<JSObject*> aGivenProto) override;
+
+public: // static helpers:
+
+ // Determine if preferences allow WebSocket
+ static bool PrefEnabled(JSContext* aCx = nullptr, JSObject* aGlobal = nullptr);
+
+public: // WebIDL interface:
+
+ // Constructor:
+ static already_AddRefed<WebSocket> Constructor(const GlobalObject& aGlobal,
+ const nsAString& aUrl,
+ ErrorResult& rv);
+
+ static already_AddRefed<WebSocket> Constructor(const GlobalObject& aGlobal,
+ const nsAString& aUrl,
+ const nsAString& aProtocol,
+ ErrorResult& rv);
+
+ static already_AddRefed<WebSocket> Constructor(const GlobalObject& aGlobal,
+ const nsAString& aUrl,
+ const Sequence<nsString>& aProtocols,
+ ErrorResult& rv);
+
+ static already_AddRefed<WebSocket> CreateServerWebSocket(const GlobalObject& aGlobal,
+ const nsAString& aUrl,
+ const Sequence<nsString>& aProtocols,
+ nsITransportProvider* aTransportProvider,
+ const nsAString& aNegotiatedExtensions,
+ ErrorResult& rv);
+
+ static already_AddRefed<WebSocket> ConstructorCommon(const GlobalObject& aGlobal,
+ const nsAString& aUrl,
+ const Sequence<nsString>& aProtocols,
+ nsITransportProvider* aTransportProvider,
+ const nsACString& aNegotiatedExtensions,
+ ErrorResult& rv);
+
+ // webIDL: readonly attribute DOMString url
+ void GetUrl(nsAString& aResult);
+
+ // webIDL: readonly attribute unsigned short readyState;
+ uint16_t ReadyState();
+
+ // webIDL: readonly attribute unsigned long bufferedAmount;
+ uint32_t BufferedAmount() const;
+
+ // webIDL: attribute Function? onopen;
+ IMPL_EVENT_HANDLER(open)
+
+ // webIDL: attribute Function? onerror;
+ IMPL_EVENT_HANDLER(error)
+
+ // webIDL: attribute Function? onclose;
+ IMPL_EVENT_HANDLER(close)
+
+ // webIDL: readonly attribute DOMString extensions;
+ void GetExtensions(nsAString& aResult);
+
+ // webIDL: readonly attribute DOMString protocol;
+ void GetProtocol(nsAString& aResult);
+
+ // webIDL: void close(optional unsigned short code, optional DOMString reason):
+ void Close(const Optional<uint16_t>& aCode,
+ const Optional<nsAString>& aReason,
+ ErrorResult& aRv);
+
+ // webIDL: attribute Function? onmessage;
+ IMPL_EVENT_HANDLER(message)
+
+ // webIDL: attribute DOMString binaryType;
+ dom::BinaryType BinaryType() const;
+ void SetBinaryType(dom::BinaryType aData);
+
+ // webIDL: void send(DOMString|Blob|ArrayBufferView data);
+ void Send(const nsAString& aData,
+ ErrorResult& aRv);
+ void Send(Blob& aData,
+ ErrorResult& aRv);
+ void Send(const ArrayBuffer& aData,
+ ErrorResult& aRv);
+ void Send(const ArrayBufferView& aData,
+ ErrorResult& aRv);
+
+private: // constructor && destructor
+ explicit WebSocket(nsPIDOMWindowInner* aOwnerWindow);
+ virtual ~WebSocket();
+
+ void SetReadyState(uint16_t aReadyState);
+
+ // These methods actually do the dispatch for various events.
+ nsresult CreateAndDispatchSimpleEvent(const nsAString& aName);
+ nsresult CreateAndDispatchMessageEvent(const nsACString& aData,
+ bool aIsBinary);
+ nsresult CreateAndDispatchCloseEvent(bool aWasClean,
+ uint16_t aCode,
+ const nsAString& aReason);
+
+ // if there are "strong event listeners" (see comment in WebSocket.cpp) or
+ // outgoing not sent messages then this method keeps the object alive
+ // when js doesn't have strong references to it.
+ void UpdateMustKeepAlive();
+ // ATTENTION, when calling this method the object can be released
+ // (and possibly collected).
+ void DontKeepAliveAnyMore();
+
+private:
+ WebSocket(const WebSocket& x) = delete; // prevent bad usage
+ WebSocket& operator=(const WebSocket& x) = delete;
+
+ void Send(nsIInputStream* aMsgStream,
+ const nsACString& aMsgString,
+ uint32_t aMsgLength,
+ bool aIsBinary,
+ ErrorResult& aRv);
+
+ void AssertIsOnTargetThread() const;
+
+ // Raw pointer because this WebSocketImpl is created, managed and destroyed by
+ // WebSocket.
+ WebSocketImpl* mImpl;
+
+ bool mIsMainThread;
+
+ bool mKeepingAlive;
+ bool mCheckMustKeepAlive;
+
+ uint32_t mOutgoingBufferedAmount;
+
+ // related to the WebSocket constructor steps
+ nsString mURI;
+ nsString mEffectiveURL; // after redirects
+ nsCString mEstablishedExtensions;
+ nsCString mEstablishedProtocol;
+
+ dom::BinaryType mBinaryType;
+
+ // This mutex protects mReadyState that is the only variable that is used in
+ // different threads.
+ mozilla::Mutex mMutex;
+
+ // This value should not be used directly but use ReadyState() instead.
+ uint16_t mReadyState;
+};
+
+} //namespace dom
+} //namespace mozilla
+
+#endif