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/*
* Copyright (C) 2017 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
WI.WebSocketResource = class WebSocketResource extends WI.Resource
{
constructor(url, {loaderIdentifier, requestIdentifier, requestHeaders, timestamp, walltime, requestSentTimestamp} = {})
{
super(url, {
type: WI.Resource.Type.WebSocket,
loaderIdentifier,
requestIdentifier,
requestMethod: WI.HTTPUtilities.RequestMethod.GET,
requestHeaders,
requestSentTimestamp,
});
this._timestamp = timestamp;
this._walltime = walltime;
this._readyState = WI.WebSocketResource.ReadyState.Connecting;
this._frames = [];
}
// Public
get frames() { return this._frames; }
get walltime() { return this._walltime; }
get readyState()
{
return this._readyState;
}
set readyState(state)
{
if (state === this._readyState)
return;
let previousState = this._readyState;
this._readyState = state;
this.dispatchEventToListeners(WI.WebSocketResource.Event.ReadyStateChanged, {previousState, state});
}
addFrame(data, payloadLength, isOutgoing, opcode, timestamp, elapsedTime)
{
let frameData;
// Binary data is never shown in the UI, don't clog memory with it.
if (opcode === WI.WebSocketResource.OpCodes.BinaryFrame)
frameData = null;
else
frameData = data;
let frame = {data: frameData, isOutgoing, opcode, walltime: this._walltimeForWebSocketTimestamp(timestamp)};
this._frames.push(frame);
if (InspectorFrontendHost.isUnderTest())
frame.dataForTest = data;
this.increaseSize(payloadLength, elapsedTime);
this.dispatchEventToListeners(WI.WebSocketResource.Event.FrameAdded, frame);
}
// Protected
requestContentFromBackend()
{
console.assert(false, "A WebSocket's content was requested. WebSockets do not have content so the request is nonsensical.");
return super.requestContentFromBackend();
}
// Private
_walltimeForWebSocketTimestamp(timestamp)
{
return this._walltime + (timestamp - this._timestamp);
}
};
WI.WebSocketResource.Event = {
FrameAdded: "web-socket-frame-added",
ReadyStateChanged: "web-socket-resource-ready-state-changed",
};
WI.WebSocketResource.ReadyState = {
Closed: Symbol("closed"),
Connecting: Symbol("connecting"),
Open: Symbol("open"),
};
WI.WebSocketResource.OpCodes = {
ContinuationFrame: 0,
TextFrame: 1,
BinaryFrame: 2,
ConnectionCloseFrame: 8,
PingFrame: 9,
PongFrame: 10,
};
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