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hpws upgrade with websocket protocol improvements. (#232)

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* Updated hpws binary and header.
* Improved binary encoding support in client lib.
This commit is contained in:
Ravin Perera
2021-02-01 22:31:28 +05:30
committed by GitHub
parent d34b7bce53
commit 08680ee8d4
5 changed files with 129 additions and 946 deletions
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27
examples/js_client/hp-client-lib.js
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@@ -12,6 +12,8 @@
const outputValidationPassThreshold = 0.8;
const connectionCheckIntervalMs = 1000;
const recentActivityThresholdMs = 3000;
const textEncoder = new TextEncoder();
const textDecoder = new TextDecoder();
// External dependency references.
let WebSocket = null;
@@ -430,7 +432,7 @@
// Sign the challenge and send back the response
const response = msgHelper.createUserChallengeResponse(m.challenge, serverChallenge, protocol);
ws.send(msgHelper.serializeObject(response));
wsSend(msgHelper.serializeObject(response));
connectionStatus = 1;
return true;
@@ -519,9 +521,10 @@
const messageHandler = async (rcvd) => {
const data = (connectionStatus < 2 || protocol == protocols.json) ?
(isBrowser ? await rcvd.data.text() : rcvd.data) :
(isBrowser ? await rcvd.data.arrayBuffer() : rcvd.data);
// Decode the received data buffer.
// In browser, text(json) mode requires the buffer to be "decoded" to text before JSON parsing.
const isTextMode = (connectionStatus < 2 || protocol == protocols.json);
const data = (isBrowser && isTextMode) ? textDecoder.decode(rcvd.data) : rcvd.data;
try {
m = msgHelper.deserializeMessage(data);
@@ -593,6 +596,13 @@
handshakeResolver && handshakeResolver(false);
}
const wsSend = (msg) => {
if (isString(msg))
ws.send(textEncoder.encode(msg));
else
ws.send(msg);
}
this.isConnected = () => {
return connectionStatus == 2;
};
@@ -602,6 +612,9 @@
return new Promise(resolve => {
ws = isBrowser ? new WebSocket(server) : new WebSocket(server, { rejectUnauthorized: false });
if (isBrowser)
ws.binaryType = "arraybuffer";
handshakeResolver = resolve;
ws.addEventListener("error", errorHandler);
ws.addEventListener("open", openHandler);
@@ -633,7 +646,7 @@
// Otherwise simply wait for the previously sent request.
if (statResponseResolvers.length == 1) {
const msg = msgHelper.createStatusRequest();
ws.send(msgHelper.serializeObject(msg));
wsSend(msgHelper.serializeObject(msg));
}
return p;
}
@@ -663,7 +676,7 @@
contractInputResolvers[sigKey] = resolve;
});
ws.send(msgHelper.serializeObject(msg));
wsSend(msgHelper.serializeObject(msg));
return p;
}
@@ -673,7 +686,7 @@
return;
const msg = msgHelper.createReadRequest(request);
ws.send(msgHelper.serializeObject(msg));
wsSend(msgHelper.serializeObject(msg));
}
}