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cryptpad/www/common/sframe-chainpad-netflux-out...

115 lines
3.8 KiB
JavaScript

/*
* Copyright 2014 XWiki SAS
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
define([], function () {
var verbose = function (x) { console.log(x); };
verbose = function () {}; // comment out to enable verbose logging
var unBencode = function (str) { return str.replace(/^\d+:/, ''); };
var start = function (conf) {
var channel = conf.channel;
var Crypto = conf.crypto;
var validateKey = conf.validateKey;
var readOnly = conf.readOnly || false;
var padRpc = conf.padRpc;
var sframeChan = conf.sframeChan;
var onConnect = conf.onConnect || function () { };
conf = undefined;
padRpc.onReadyEvent.reg(function () {
sframeChan.event('EV_RT_READY', null);
});
// shim between chainpad and netflux
var msgIn = function (msg) {
try {
var decryptedMsg = Crypto.decrypt(msg, validateKey);
return decryptedMsg;
} catch (err) {
console.error(err);
return msg;
}
};
var msgOut = function (msg) {
if (readOnly) { return; }
try {
var cmsg = Crypto.encrypt(msg);
if (msg.indexOf('[4') === 0) { cmsg = 'cp|' + cmsg; }
return cmsg;
} catch (err) {
console.log(msg);
throw err;
}
};
sframeChan.on('Q_RT_MESSAGE', function (message, cb) {
var msg = msgOut(message);
if (!msg) { return; }
padRpc.sendPadMsg(msg, cb);
});
var onMessage = function(msg) {
var message = msgIn(msg);
verbose(message);
// slice off the bencoded header
// Why are we getting bencoded stuff to begin with?
// FIXME this shouldn't be necessary
message = unBencode(message);//.slice(message.indexOf(':[') + 1);
// pass the message into Chainpad
sframeChan.query('Q_RT_MESSAGE', message, function () { });
};
var onOpen = function(data) {
// Add the existing peers in the userList
onConnect(data.id);
onConnect = function () {};
sframeChan.event('EV_RT_CONNECT', { myID: data.myID, members: data.members, readOnly: readOnly });
// Add the handlers to the WebChannel
padRpc.onMessageEvent.reg(function (msg) { onMessage(msg); });
padRpc.onJoinEvent.reg(function (m) { sframeChan.event('EV_RT_JOIN', m); });
padRpc.onLeaveEvent.reg(function (m) { sframeChan.event('EV_RT_LEAVE', m); });
};
padRpc.onDisconnectEvent.reg(function () {
sframeChan.event('EV_RT_DISCONNECT');
});
// join the netflux network, promise to handle opening of the channel
padRpc.joinPad({
channel: channel || null,
validateKey: validateKey,
readOnly: readOnly
}, function(data) {
onOpen(data);
});
};
return {
start: function (config) {
config.sframeChan.whenReg('EV_RT_READY', function () {
start(config);
});
}
};
});