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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>MPush WebSocket Client</title>
</head>
<body>
<script type="text/javascript">
(function (window) {
let socket, session = {}, ID_SEQ = 1;
let config = {listener: null, log: console};
let listener = {
onOpened: function (event) {
if (config.listener != null) {
config.listener.onOpened(event);
}
handshake();
},
onClosed: function (event) {
if (config.listener != null) {
config.listener.onClosed(event);
}
session = {};
ID_SEQ = 1;
socket = null;
},
onHandshake: function () {
session.handshakeOk = true;
if (config.listener != null) {
config.listener.onHandshake();
}
if (config.userId) {
bindUser(config.userId, config.tags);
}
},
onBindUser: function (success) {
if (config.listener != null) {
config.listener.onBindUser(success);
}
},
onReceivePush: function (message, messageId) {
if (config.listener != null) {
config.listener.onReceivePush(message, messageId);
}
},
onKickUser: function (userId, deviceId) {
if (config.listener != null) {
config.listener.onKickUser(userId, deviceId);
}
doClose(-1, "kick user");
}
};
const Command = {
HANDSHAKE: 2,
BIND: 5,
UNBIND: 6,
ERROR: 10,
OK: 11,
KICK: 13,
PUSH: 15,
ACK: 23,
UNKNOWN: -1
};
function Packet(cmd, body, sessionId) {
return {
cmd: cmd,
flags: 16,
sessionId: sessionId || ID_SEQ++,
body: body
}
}
function handshake() {
send(Packet(Command.HANDSHAKE, {
deviceId: config.deviceId,
osName: config.osName,
osVersion: config.osVersion,
clientVersion: config.clientVersion
})
);
}
function bindUser(userId, tags) {
if (userId && userId != session.userId) {
session.userId = userId;
session.tags = tags;
send(Packet(Command.BIND, {userId: userId, tags: tags}));
}
}
function ack(sessionId) {
send(Packet(Command.ACK, null, sessionId));
}
function send(message) {
if (!socket) {
return;
}
if (socket.readyState == WebSocket.OPEN) {
socket.send(JSON.stringify(message));
} else {
config.log.error("The socket is not open.");
}
}
function dispatch(packet) {
switch (packet.cmd) {
case Command.HANDSHAKE: {
config.log.debug(">>> handshake ok.");
listener.onHandshake();
break;
}
case Command.OK: {
if (packet.body.cmd == Command.BIND) {
config.log.debug(">>> bind user ok.");
listener.onBindUser(true);
}
break;
}
case Command.ERROR: {
if (packet.body.cmd == Command.BIND) {
config.log.debug(">>> bind user failure.");
listener.onBindUser(false);
}
break;
}
case Command.KICK: {
if (session.userId == packet.body.userId && config.deviceId == packet.body.deviceId) {
config.log.debug(">>> receive kick user.");
listener.onKickUser(packet.body.userId, packet.body.deviceId);
}
break;
}
case Command.PUSH: {
config.log.debug(">>> receive push, content=" + packet.body.content);
let sessionId;
if ((packet.flags & 8) != 0) {
ack(packet.sessionId);
} else {
sessionId = packet.sessionId
}
listener.onReceivePush(packet.body.content, sessionId);
break;
}
}
}
function onReceive(event) {
config.log.debug(">>> receive packet=" + event.data);
dispatch(JSON.parse(event.data))
}
function onOpen(event) {
config.log.info("Web Socket opened!");
listener.onOpened(event);
}
function onClose(event) {
config.log.info("Web Socket closed!");
listener.onClosed(event);
}
function onError(event) {
config.log.info("Web Socket receive, error");
doClose();
}
function doClose(code, reason) {
if (socket) socket.close();
config.log.info("try close web socket client, reason=" + reason);
}
function doConnect(cfg) {
config = copy(cfg);
socket = new WebSocket(config.url);
socket.onmessage = onReceive;
socket.onopen = onOpen;
socket.onclose = onClose;
socket.onerror = onError;
config.log.debug("try connect to web socket server, url=" + config.url);
}
function copy(cfg) {
for (let p in cfg) {
if (cfg.hasOwnProperty(p)) {
config[p] = cfg[p];
}
}
return config;
}
window.mpush = {
connect: doConnect,
close: doClose,
bindUser: bindUser
}
})(window);
function $(id) {
return document.getElementById(id);
}
let log = {
log: function () {
$("responseText").value += (Array.prototype.join.call(arguments, "") + "\r\n");
}
};
log.debug = log.info = log.warn = log.error = log.log;
function connect() {
mpush.connect({
url: $("url").value,
userId: $("userId").value,
deviceId: "test-1001",
osName: "web " + navigator.userAgent,
osVersion: "55.2",
clientVersion: "1.0",
log: log
});
}
function bind() {
mpush.bindUser($("userId").value)
}
</script>
<form onsubmit="return false;">
<label> Server Url:
<input type="text" id="url" value="ws://127.0.0.1:8080/">
</label>
<input type="button" value="Connect" onclick="connect()">
<br>
<label> Bind User:
<input type="text" id="userId" value="user-0">
</label>
<input type="button" value="bind" onclick="bind()">
<h3><label for="responseText">Output</label></h3>
<textarea id="responseText" style="width:100%;height:500px;"></textarea>
</form>
</body>
</html>