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"use strict";
var socket = require("socket.io");
var utils = require("./server/utils");
/**
* Plugin interface
* @returns {*|function(this:exports)}
*/
module.exports.plugin = function (server, clientEvents, bs) {
return exports.init(server, clientEvents, bs);
};
/**
* @param {http.Server} server
* @param clientEvents
* @param {BrowserSync} bs
*/
module.exports.init = function (server, clientEvents, bs) {
var emitter = bs.events;
var socketConfig = bs.options.get("socket").toJS();
if (bs.options.get("mode") === "proxy" &&
bs.options.getIn(["proxy", "ws"])) {
server = utils.getServer(null, bs.options).server;
server.listen(bs.options.getIn(["socket", "port"]));
bs.registerCleanupTask(function () {
server.close();
});
}
var socketIoConfig = socketConfig.socketIoOptions;
socketIoConfig.path = socketConfig.path;
var io = socket(server, socketIoConfig);
// Override default namespace.
io.sockets = io.of(socketConfig.namespace);
io.set("heartbeat interval", socketConfig.clients.heartbeatTimeout);
// Breaking change was introduced https://socket.io/blog/socket-io-2-4-0/
io.origins(function (_, callback) {
callback(null, true);
});
/**
* Listen for new connections
*/
io.sockets.on("connection", handleConnection);
/**
* Handle each new connection
* @param {Object} client
*/
function handleConnection(client) {
// set ghostmode callbacks
if (bs.options.get("ghostMode")) {
addGhostMode(client);
}
client.emit("connection", bs.options.toJS()); //todo - trim the amount of options sent to clients
emitter.emit("client:connected", {
ua: client.handshake.headers["user-agent"]
});
}
/**
* @param client
*/
function addGhostMode(client) {
clientEvents.forEach(addEvent);
function addEvent(event) {
client.on(event, function (data) {
client.broadcast.emit(event, data);
});
}
}
return io;
};
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