You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
99 lines
2.7 KiB
JavaScript
99 lines
2.7 KiB
JavaScript
var Netflux = require("netflux-websocket");
|
|
var WebSocket = require("ws"); // jshint ignore:line
|
|
var nThen = require("nthen");
|
|
|
|
var Util = require("../../www/common/common-util");
|
|
|
|
var Nacl = require("tweetnacl/nacl-fast");
|
|
|
|
var Client = module.exports;
|
|
|
|
var createNetwork = Client.createNetwork = function (url, cb) {
|
|
var CB = Util.once(cb);
|
|
|
|
var info = {};
|
|
|
|
Netflux.connect(url, function (url) {
|
|
// this websocket seems to never close properly if the error is
|
|
// ECONNREFUSED
|
|
info.websocket = new WebSocket(url)
|
|
.on('error', function (err) {
|
|
CB(err);
|
|
})
|
|
.on('close', function (/* err */) {
|
|
delete info.websocket;
|
|
});
|
|
return info.websocket;
|
|
}).then(function (network) {
|
|
info.network = network;
|
|
CB(void 0, info);
|
|
}, function (err) {
|
|
CB(err);
|
|
});
|
|
};
|
|
|
|
var die = function (client) {
|
|
var disconnect = Util.find(client, ['config', 'network', 'disconnect']);
|
|
if (typeof(disconnect) === 'function') {
|
|
disconnect();
|
|
} else {
|
|
console.error("disconnect was not a function");
|
|
}
|
|
var close = Util.find(client, ['config', 'websocket', 'close']);
|
|
if (typeof(close) === 'function') {
|
|
client.config.websocket.close();
|
|
} else {
|
|
console.error("close was not a function");
|
|
}
|
|
};
|
|
|
|
Client.create = function (config, cb) {
|
|
if (typeof(config) === 'function') {
|
|
cb = config;
|
|
config = {};
|
|
}
|
|
var client = {
|
|
config: config,
|
|
};
|
|
var CB = Util.once(function (err, arg) {
|
|
if (err) { die(client); }
|
|
cb(err, arg);
|
|
});
|
|
|
|
client.shutdown = function () {
|
|
die(client);
|
|
};
|
|
|
|
nThen(function (w) {
|
|
if (config.network) { return; }
|
|
// connect to the network...
|
|
createNetwork('ws://localhost:3000/cryptpad_websocket', w(function (err, info) {
|
|
if (err) {
|
|
w.abort();
|
|
return void CB(err);
|
|
}
|
|
config.network = info.network;
|
|
config.websocket = info.websocket;
|
|
}));
|
|
}).nThen(function (w) {
|
|
// make sure the network has a historyKeeper id on it
|
|
// we're responsible for adding it
|
|
if (config.network.historyKeeper) { return; }
|
|
var channel = Util.uint8ArrayToHex(Nacl.randomBytes(16));
|
|
config.network.join(channel).then(w(function (wc) {
|
|
wc.members.some(function (member) {
|
|
if (member.length !== 16) { return; }
|
|
config.network.historyKeeper = member;
|
|
return true;
|
|
});
|
|
wc.leave();
|
|
}), function (err) {
|
|
w.abort();
|
|
CB(err);
|
|
});
|
|
}).nThen(function () {
|
|
CB(void 0, client);
|
|
});
|
|
};
|
|
|