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cryptpad/www/common/common-messaging.js

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JavaScript

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define([
'jquery',
'/bower_components/chainpad-crypto/crypto.js',
'/common/curve.js',
'/bower_components/marked/marked.min.js',
], function ($, Crypto, Curve, Marked) {
var Msg = {};
var Types = {
message: 'MSG',
update: 'UPDATE',
unfriend: 'UNFRIEND',
mapId: 'MAP_ID',
mapIdAck: 'MAP_ID_ACK'
};
// TODO
// - mute a channel (hide notifications or don't open it?)
var ready = [];
var pending = {};
var pendingRequests = [];
var parseMessage = function (content) {
return Marked(content);
};
var createData = Msg.createData = function (common, hash) {
var proxy = common.getProxy();
return {
channel: hash || common.createChannelId(),
displayName: proxy[common.displayNameKey],
profile: proxy.profile && proxy.profile.view,
edPublic: proxy.edPublic,
curvePublic: proxy.curvePublic,
avatar: proxy.profile && proxy.profile.avatar
};
};
var getFriend = function (common, pubkey) {
var proxy = common.getProxy();
if (pubkey === proxy.curvePublic) {
var data = createData(common);
delete data.channel;
return data;
}
return proxy.friends ? proxy.friends[pubkey] : undefined;
};
var removeFromFriendList = Msg.removeFromFriendList = function (common, curvePublic, cb) {
var proxy = common.getProxy();
if (!proxy.friends) {
return;
}
var friends = proxy.friends;
delete friends[curvePublic];
common.whenRealtimeSyncs(common.getRealtime(), cb);
};
var getFriendList = Msg.getFriendList = function (common) {
var proxy = common.getProxy();
if (!proxy.friends) { proxy.friends = {}; }
return proxy.friends;
};
Msg.getFriendChannelsList = function (common) {
var friends = getFriendList(common);
var list = [];
Object.keys(friends).forEach(function (key) {
if (key === "me") { return; }
list.push(friends[key].channel);
});
return list;
};
// Messaging tools
var avatars = {};
var addToFriendListUI = function (common, $block, open, remove, f) {
var proxy = common.getProxy();
var friends = proxy.friends || {};
if (f === "me") { return; }
var data = friends[f];
var $friend = $('<div>', {'class': 'friend avatar'}).appendTo($block);
$friend.data('key', f);
var $rightCol = $('<span>', {'class': 'right-col'});
$('<span>', {'class': 'name'}).text(data.displayName).appendTo($rightCol);
var $remove = $('<span>', {'class': 'remove fa fa-user-times'}).appendTo($rightCol);
$remove.attr('title', common.Messages.contacts_remove);
$friend.dblclick(function () {
if (data.profile) {
window.open('/profile/#' + data.profile);
}
});
$friend.click(function () {
open(data.curvePublic);
});
$remove.click(function (e) {
e.stopPropagation();
common.confirm(common.Messages._getKey('contacts_confirmRemove', [
common.fixHTML(data.displayName)
]), function (yes) {
if (!yes) { return; }
remove(data.curvePublic);
}, null, true);
});
if (data.avatar && avatars[data.avatar]) {
$friend.append(avatars[data.avatar]);
$friend.append($rightCol);
} else {
common.displayAvatar($friend, data.avatar, data.displayName, function ($img) {
if (data.avatar && $img) {
avatars[data.avatar] = $img[0].outerHTML;
}
$friend.append($rightCol);
});
}
$('<span>', {'class': 'status'}).appendTo($friend);
};
Msg.getFriendListUI = function (common, open, remove) {
var proxy = common.getProxy();
var $block = $('<div>');
var friends = proxy.friends || {};
Object.keys(friends).forEach(function (f) {
addToFriendListUI(common, $block, open, remove, f);
});
return $block;
};
Msg.createOwnedChannel = function (common, channelId, validateKey, owners, cb) {
var network = common.getNetwork();
network.join(channelId).then(function (wc) {
var cfg = {
validateKey: validateKey,
owners: owners
};
var msg = ['GET_HISTORY', wc.id, cfg];
network.sendto(network.historyKeeper, JSON.stringify(msg)).then(cb, function (err) {
throw new Error(err);
});
}, function (err) {
throw new Error(err);
});
};
var channels = Msg.channels = window.channels = {};
var pushMsg = function (common, channel, cryptMsg) {
var msg = channel.encryptor.decrypt(cryptMsg);
var parsedMsg = JSON.parse(msg);
if (parsedMsg[0] === Types.message) {
parsedMsg.shift();
channel.messages.push([cryptMsg.slice(0,64), parsedMsg]);
return true;
}
var proxy;
if (parsedMsg[0] === Types.update) {
proxy = common.getProxy();
if (parsedMsg[1] === common.getProxy().curvePublic) { return; }
var newdata = parsedMsg[3];
var data = getFriend(common, parsedMsg[1]);
var types = [];
Object.keys(newdata).forEach(function (k) {
if (data[k] !== newdata[k]) {
types.push(k);
data[k] = newdata[k];
}
});
channel.updateUI(types);
return;
}
if (parsedMsg[0] === Types.unfriend) {
proxy = common.getProxy();
removeFromFriendList(common, channel.friendEd, function () {
channel.wc.leave(Types.unfriend);
channel.removeUI();
});
return;
}
};
var updateMyData = function (common) {
var friends = getFriendList(common);
var mySyncData = friends.me;
var myData = createData(common);
if (!mySyncData || mySyncData.displayName !== myData.displayName
|| mySyncData.profile !== myData.profile
|| mySyncData.avatar !== myData.avatar) {
delete myData.channel;
Object.keys(channels).forEach(function (chan) {
var channel = channels[chan];
var msg = [Types.update, myData.curvePublic, +new Date(), myData];
var msgStr = JSON.stringify(msg);
var cryptMsg = channel.encryptor.encrypt(msgStr);
channel.wc.bcast(cryptMsg).then(function () {
channel.refresh();
}, function (err) {
console.error(err);
});
});
friends.me = myData;
}
};
var onChannelReady = function (common, chanId) {
if (ready.indexOf(chanId) !== -1) { return; }
ready.push(chanId);
channels[chanId].updateStatus();
var friends = getFriendList(common);
if (ready.length === Object.keys(friends).length) {
// All channels are ready
updateMyData(common);
}
return ready.length;
};
// Id message allows us to map a netfluxId with a public curve key
var onIdMessage = function (common, msg, sender) {
var channel;
var isId = Object.keys(channels).some(function (chanId) {
if (channels[chanId].userList.indexOf(sender) !== -1) {
channel = channels[chanId];
return true;
}
});
if (!isId) { return; }
var decryptedMsg = channel.encryptor.decrypt(msg);
console.log(decryptedMsg);
var parsed = JSON.parse(decryptedMsg);
if (parsed[0] !== Types.mapId && parsed[0] !== Types.mapIdAck) { return; }
if (parsed[2] !== sender || !parsed[1]) { return; }
channel.mapId[sender] = parsed[1];
channel.updateStatus();
if (parsed[0] !== Types.mapId) { return; } // Don't send your key if it's already an ACK
// Answer with your own key
var proxy = common.getProxy();
var network = common.getNetwork();
var rMsg = [Types.mapIdAck, proxy.curvePublic, channel.wc.myID];
var rMsgStr = JSON.stringify(rMsg);
var cryptMsg = channel.encryptor.encrypt(rMsgStr);
network.sendto(sender, cryptMsg);
};
var onDirectMessage = function (common, msg, sender) {
if (sender !== Msg.hk) { return void onIdMessage(common, msg, sender); }
var parsed = JSON.parse(msg);
if ((parsed.validateKey || parsed.owners) && parsed.channel) {
return;
}
if (parsed.state && parsed.state === 1 && parsed.channel) {
if (channels[parsed.channel]) {
// parsed.channel is Ready
// TODO: call a function that shows that the channel is ready? (remove a spinner, ...)
// channel[parsed.channel].ready();
channels[parsed.channel].ready = true;
onChannelReady(common, parsed.channel);
var updateTypes = channels[parsed.channel].updateOnReady;
if (updateTypes) {
channels[parsed.channel].updateUI(updateTypes);
}
}
return;
}
var chan = parsed[3];
if (!chan || !channels[chan]) { return; }
pushMsg(common, channels[chan], parsed[4]);
};
var onMessage = function (common, msg, sender, chan) {
if (!channels[chan.id]) { return; }
var isMessage = pushMsg(common, channels[chan.id], msg);
if (isMessage) {
// Don't notify for your own messages
if (channels[chan.id].wc.myID !== sender) {
channels[chan.id].notify();
}
channels[chan.id].refresh();
}
};
var createChatBox = function (common, $container, curvePublic) {
var data = getFriend(common, curvePublic);
var proxy = common.getProxy();
var $header = $('<div>', {
'class': 'cp-contact-top-bar header',
}).appendTo($container);
var $avatar = $('<div>', {'class': 'avatar'}).appendTo($header);
var $removeHistory = $('<button>', {
'class': 'remove-history'
}).text('remove chat history').click(function () {
Cryptpad.confirm(common.Messages.contacts_confirmRemoveHistory, function (yes) {
if (!yes) { return; }
Cryptpad.clearOwnedChannel(data.channel, function (e) {
if (e) {
console.error(e);
Cryptpad.alert(common.Messages.contacts_removeHistoryServerError);
return;
}
});
});
});
$removeHistory.appendTo($header);
$('<div>', {'class': 'messages'}).appendTo($container);
var $inputBlock = $('<div>', {'class': 'input'}).appendTo($container);
// Input
var channel = channels[data.channel];
var $input = $('<textarea>').appendTo($inputBlock);
$input.attr('placeholder', common.Messages.contacts_typeHere);
var sending = false;
var send = function () {
if (sending) { return; }
if (!$input.val()) { return; }
// Send the message
var msg = [Types.message, proxy.curvePublic, +new Date(), $input.val()];
var msgStr = JSON.stringify(msg);
var cryptMsg = channel.encryptor.encrypt(msgStr);
sending = true;
channel.wc.bcast(cryptMsg).then(function () {
$input.val('');
pushMsg(common, channel, cryptMsg);
channel.refresh();
sending = false;
}, function (err) {
sending = false;
console.error(err);
});
};
$('<button>', {'class': 'btn btn-primary fa fa-paper-plane'})
//.text(common.Messages.contacts_send)
.appendTo($inputBlock).click(send);
/*$input.on('keypress', function (e) {
if (e.which === 13) { send(); }
});*/
var onKeyDown = function (e) {
if (e.keyCode === 13) {
if (e.ctrlKey) {
var val = this.value;
if (typeof this.selectionStart === "number" && typeof this.selectionEnd === "number") {
var start = this.selectionStart;
this.value = val.slice(0, start) + "\n" + val.slice(this.selectionEnd);
this.selectionStart = this.selectionEnd = start + 1;
} else if (document.selection && document.selection.createRange) {
this.focus();
var range = document.selection.createRange();
range.text = "\r\n";
range.collapse(false);
range.select();
}
return false;
}
send();
return false;
}
};
$input.on('keydown', onKeyDown);
// Header
var $rightCol = $('<span>', {'class': 'right-col'});
$('<span>', {'class': 'name'}).text(data.displayName).appendTo($rightCol);
if (data.avatar && avatars[data.avatar]) {
$avatar.append(avatars[data.avatar]);
$avatar.append($rightCol);
} else {
common.displayAvatar($avatar, data.avatar, data.displayName, function ($img) {
if (data.avatar && $img) {
avatars[data.avatar] = $img[0].outerHTML;
}
$avatar.append($rightCol);
});
}
};
Msg.init = function (common, $listContainer, $msgContainer) {
var network = common.getNetwork();
var proxy = common.getProxy();
Msg.hk = network.historyKeeper;
var friends = getFriendList(common);
network.on('message', function(msg, sender) {
onDirectMessage(common, msg, sender);
});
// Refresh the active channel
var refresh = function (curvePublic) {
if (Msg.active !== curvePublic) { return; }
var data = friends[curvePublic];
if (!data) { return; }
var channel = channels[data.channel];
if (!channel) { return; }
var $chat = $msgContainer.find('.chat').filter(function (idx, el) {
return $(el).data('key') === curvePublic;
});
if (!$chat.length) { return; }
// Add new messages
var messages = channel.messages;
var $messages = $chat.find('.messages');
var $msg, msg, date, name;
var last = typeof(channel.lastDisplayed) === 'number'? channel.lastDisplayed: -1;
for (var i = last + 1; i<messages.length; i++) {
msg = messages[i][1]; // 0 is the hash, 1 the array
$msg = $('<div>', {'class': 'message'}).appendTo($messages);
// date
date = msg[1] ? new Date(msg[1]).toLocaleString() : '?';
//$('<div>', {'class':'date'}).text(date).appendTo($msg);
$msg.attr('title', date);
// name
if (msg[0] !== channel.lastSender) {
name = getFriend(common, msg[0]).displayName;
$('<div>', {'class':'sender'}).text(name).appendTo($msg);
}
channel.lastSender = msg[0];
// content
//$('<div>', {'class':'content'}).text(msg[2]).appendTo($msg);
$('<div>', {'class':'content'}).html(parseMessage(msg[2])).appendTo($msg);
}
$messages.scrollTop($messages[0].scrollHeight);
channel.lastDisplayed = i-1;
channel.unnotify();
if (messages.length > 10) {
var lastKnownMsg = messages[messages.length - 11];
data.lastKnownHash = lastKnownMsg[0];
}
};
// Display a new channel
var display = function (curvePublic) {
$msgContainer.find('.info').hide();
var isNew = false;
var $chat = $msgContainer.find('.chat').filter(function (idx, el) {
return $(el).data('key') === curvePublic;
});
if (!$chat.length) {
$chat = $('<div>', {'class':'chat'})
.data('key', curvePublic).appendTo($msgContainer);
createChatBox(common, $chat, curvePublic);
isNew = true;
}
// Show the correct div
$msgContainer.find('.chat').hide();
$chat.show();
Msg.active = curvePublic;
refresh(curvePublic);
};
var remove = function (curvePublic) {
var data = getFriend(common, curvePublic);
var channel = channels[data.channel];
//var newdata = createData(common, data.channel);
var msg = [Types.unfriend, proxy.curvePublic, +new Date()];
var msgStr = JSON.stringify(msg);
var cryptMsg = channel.encryptor.encrypt(msgStr);
channel.wc.bcast(cryptMsg).then(function () {
removeFromFriendList(common, curvePublic, function () {
channel.wc.leave(Types.unfriend);
channel.removeUI();
});
}, function (err) {
console.error(err);
});
};
// Display friend list
common.getFriendListUI(common, display, remove).appendTo($listContainer);
// Notify on new messages
var notify = function (curvePublic) {
//if (Msg.active === curvePublic) { return; }
var $friend = $listContainer.find('.friend').filter(function (idx, el) {
return $(el).data('key') === curvePublic;
});
$friend.addClass('notify');
common.notify();
};
var unnotify = function (curvePublic) {
var $friend = $listContainer.find('.friend').filter(function (idx, el) {
return $(el).data('key') === curvePublic;
});
$friend.removeClass('notify');
};
var removeUI = function (curvePublic) {
var $friend = $listContainer.find('.friend').filter(function (idx, el) {
return $(el).data('key') === curvePublic;
});
var $chat = $msgContainer.find('.chat').filter(function (idx, el) {
return $(el).data('key') === curvePublic;
});
$friend.remove();
$chat.remove();
$msgContainer.find('.info').show();
};
var updateUI = function (curvePublic, types) {
var data = getFriend(common, curvePublic);
var chan = channels[data.channel];
if (!chan.ready) {
chan.updateOnReady = (chan.updateOnReady || []).concat(types);
return;
}
var $friend = $listContainer.find('.friend').filter(function (idx, el) {
return $(el).data('key') === curvePublic;
});
if (types.indexOf('displayName') >= 0) {
$friend.find('.name').text(data.displayName);
}
if (types.indexOf('avatar') >= 0) {
$friend.find('.default').remove();
$friend.find('media-tag').remove();
if (data.avatar && avatars[data.avatar]) {
$friend.prepend(avatars[data.avatar]);
} else {
common.displayAvatar($friend, data.avatar, data.displayName, function ($img) {
if (data.avatar && $img) {
avatars[data.avatar] = $img[0].outerHTML;
}
});
}
}
};
var updateStatus = function (curvePublic) {
var data = getFriend(common, curvePublic);
var chan = channels[data.channel];
var $friend = $listContainer.find('.friend').filter(function (idx, el) {
return $(el).data('key') === curvePublic;
});
var status = chan.userList.some(function (nId) {
return chan.mapId[nId] === curvePublic;
});
var statusText = status ? 'online' : 'offline';
$friend.find('.status').attr('class', 'status '+statusText);
};
// Open the channels
var openFriendChannel = function (f) {
if (f === "me") { return; }
var data = friends[f];
var keys = Curve.deriveKeys(data.curvePublic, proxy.curvePrivate);
var encryptor = Curve.createEncryptor(keys);
network.join(data.channel).then(function (chan) {
var channel = channels[data.channel] = {
friendEd: f,
keys: keys,
encryptor: encryptor,
messages: [],
refresh: function () { refresh(data.curvePublic); },
notify: function () { notify(data.curvePublic); },
unnotify: function () { unnotify(data.curvePublic); },
removeUI: function () { removeUI(data.curvePublic); },
updateUI: function (types) { updateUI(data.curvePublic, types); },
updateStatus: function () { updateStatus(data.curvePublic); },
wc: chan,
userList: [],
mapId: {}
};
chan.on('message', function (msg, sender) {
onMessage(common, msg, sender, chan);
});
var onJoining = function (peer) {
if (peer === Msg.hk) { return; }
if (channel.userList.indexOf(peer) !== -1) { return; }
channel.userList.push(peer);
var msg = [Types.mapId, proxy.curvePublic, chan.myID];
var msgStr = JSON.stringify(msg);
var cryptMsg = channel.encryptor.encrypt(msgStr);
network.sendto(peer, cryptMsg);
channel.updateStatus();
};
chan.members.forEach(function (peer) {
if (peer === Msg.hk) { return; }
if (channel.userList.indexOf(peer) !== -1) { return; }
channel.userList.push(peer);
});
chan.on('join', onJoining);
chan.on('leave', function (peer) {
var i = channel.userList.indexOf(peer);
while (i !== -1) {
channel.userList.splice(i, 1);
i = channel.userList.indexOf(peer);
}
channel.updateStatus();
});
var cfg = {
validateKey: keys.validateKey,
owners: [proxy.edPublic, data.edPublic],
lastKnownHash: data.lastKnownHash
};
var msg = ['GET_HISTORY', chan.id, cfg];
network.sendto(network.historyKeeper, JSON.stringify(msg))
.then($.noop, function (err) {
throw new Error(err);
});
}, function (err) {
console.error(err);
});
};
Object.keys(friends).forEach(openFriendChannel);
var checkNewFriends = function () {
Object.keys(friends).forEach(function (f) {
var $friend = $listContainer.find('.friend').filter(function (idx, el) {
return $(el).data('key') === f;
});
if (!$friend.length) {
openFriendChannel(f);
addToFriendListUI(common, $listContainer.find('> div'), display, remove, f);
}
});
};
common.onDisplayNameChanged(function () {
checkNewFriends();
updateMyData(common);
});
};
// Invitation
var addToFriendList = Msg.addToFriendList = function (common, data, cb) {
var proxy = common.getProxy();
if (!proxy.friends) {
proxy.friends = {};
}
var friends = proxy.friends;
var pubKey = data.curvePublic;
if (pubKey === proxy.curvePublic) { return void cb("E_MYKEY"); }
friends[pubKey] = data;
common.whenRealtimeSyncs(common.getRealtime(), function () {
cb();
common.pinPads([data.channel]);
});
common.changeDisplayName(proxy[common.displayNameKey]);
};
Msg.addDirectMessageHandler = function (common) {
var network = common.getNetwork();
if (!network) { return void console.error('Network not ready'); }
network.on('message', function (message, sender) {
var msg;
if (sender === network.historyKeeper) { return; }
try {
var parsed = common.parsePadUrl(window.location.href);
if (!parsed.hashData) { return; }
var chan = parsed.hashData.channel;
// Decrypt
var keyStr = parsed.hashData.key;
var cryptor = Crypto.createEditCryptor(keyStr);
var key = cryptor.cryptKey;
var decryptMsg;
try {
decryptMsg = Crypto.decrypt(message, key);
} catch (e) {
// If we can't decrypt, it means it is not a friend request message
}
if (!decryptMsg) { return; }
// Parse
msg = JSON.parse(decryptMsg);
if (msg[1] !== parsed.hashData.channel) { return; }
var msgData = msg[2];
var msgStr;
if (msg[0] === "FRIEND_REQ") {
msg = ["FRIEND_REQ_NOK", chan];
var todo = function (yes) {
if (yes) {
pending[sender] = msgData;
msg = ["FRIEND_REQ_OK", chan, createData(common, msgData.channel)];
}
msgStr = Crypto.encrypt(JSON.stringify(msg), key);
network.sendto(sender, msgStr);
};
var existing = getFriend(common, msgData.curvePublic);
if (existing) {
todo(true);
return;
}
var confirmMsg = common.Messages._getKey('contacts_request', [
common.fixHTML(msgData.displayName)
]);
common.confirm(confirmMsg, todo, null, true);
return;
}
if (msg[0] === "FRIEND_REQ_OK") {
var idx = pendingRequests.indexOf(sender);
if (idx !== -1) { pendingRequests.splice(idx, 1); }
addToFriendList(common, msgData, function (err) {
if (err) {
return void common.log(common.Messages.contacts_addError);
}
common.log(common.Messages.contacts_added);
var msg = ["FRIEND_REQ_ACK", chan];
var msgStr = Crypto.encrypt(JSON.stringify(msg), key);
network.sendto(sender, msgStr);
});
return;
}
if (msg[0] === "FRIEND_REQ_NOK") {
var i = pendingRequests.indexOf(sender);
if (i !== -1) { pendingRequests.splice(i, 1); }
common.log(common.Messages.contacts_rejected);
var proxy = common.getProxy();
common.changeDisplayName(proxy[common.displayNameKey]);
return;
}
if (msg[0] === "FRIEND_REQ_ACK") {
var data = pending[sender];
if (!data) { return; }
addToFriendList(common, data, function (err) {
if (err) {
return void common.log(common.Messages.contacts_addError);
}
common.log(common.Messages.contacts_added);
});
return;
}
// TODO: timeout ACK: warn the user
} catch (e) {
console.error("Cannot parse direct message", msg || message, "from", sender, e);
}
});
};
Msg.getPending = function () {
return pendingRequests;
};
Msg.inviteFromUserlist = function (common, netfluxId) {
var network = common.getNetwork();
var parsed = common.parsePadUrl(window.location.href);
if (!parsed.hashData) { return; }
// Message
var chan = parsed.hashData.channel;
var myData = createData(common);
var msg = ["FRIEND_REQ", chan, myData];
// Encryption
var keyStr = parsed.hashData.key;
var cryptor = Crypto.createEditCryptor(keyStr);
var key = cryptor.cryptKey;
var msgStr = Crypto.encrypt(JSON.stringify(msg), key);
// Send encrypted message
if (pendingRequests.indexOf(netfluxId) === -1) {
pendingRequests.push(netfluxId);
var proxy = common.getProxy();
common.changeDisplayName(proxy[common.displayNameKey]);
}
network.sendto(netfluxId, msgStr);
};
return Msg;
});