Add missing file

www/common/common-messaging.js

@@ -0,0 +1,131 @@
+define([
+    '/bower_components/chainpad-crypto/crypto.js',
+], function (Crypto) {
+    var Msg = {};
+
+    var pending = {};
+
+    Msg.removeFromFriendList = function (common, edPublic, cb) {
+        var proxy = common.getProxy();
+        if (!proxy.friends) {
+            return;
+        }
+        var friends = proxy.friends;
+        delete friends[edPublic];
+        common.whenRealtimeSyncs(common.getRealtime(), cb);
+    };
+
+    var addToFriendList = Msg.addToFriendList = function (common, data, cb) {
+        var proxy = common.getProxy();
+        if (!proxy.friends) {
+            proxy.friends = {};
+        }
+        var friends = proxy.friends;
+        var pubKey = data.edPublic;
+
+        if (pubKey === proxy.edPublic) { return void cb("E_MYKEY"); }
+        if (friends[pubKey]) { return void cb("E_EXISTS"); }
+
+        friends[pubKey] = data;
+        common.whenRealtimeSyncs(common.getRealtime(), cb);
+    };
+
+    var createData = function (common, hash) {
+        var proxy = common.getProxy();
+        return {
+            channelHash: hash || common.createRandomHash(),
+            displayName: proxy[common.displayNameKey],
+            profile: proxy.profile.view,
+            edPublic: proxy.edPublic,
+            curvePublic: proxy.curvePublic
+        };
+    };
+
+    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 = Crypto.decrypt(message, key);
+                // Parse
+                msg = JSON.parse(decryptMsg);
+                if (msg[1] !== parsed.hashData.channel) { return; }
+                var msgData = msg[2];
+                if (msg[0] === "FRIEND_REQ") {
+                    common.confirm("Accept friend?", function (yes) { // XXX
+                        var msg = ["FRIEND_REQ_NOK", chan];
+                        if (yes) {
+                            pending[sender] = msgData;
+                            msg = ["FRIEND_REQ_OK", chan, createData(common, msgData.channelHash)];
+                        }
+                        var msgStr = Crypto.encrypt(JSON.stringify(msg), key);
+                        // Send encrypted message
+                        network.sendto(sender, msgStr);
+                    });
+                    return;
+                }
+                if (msg[0] === "FRIEND_REQ_OK") {
+                    // XXX
+                    addToFriendList(common, msgData, function (err) {
+                        if (err) {
+                            return void common.log('Error while adding that friend to the list');
+                        }
+                        common.log('Friend invite accepted.');
+                        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") {
+                    // XXX
+                    common.log('Friend invite rejected');
+                    return;
+                }
+                if (msg[0] === "FRIEND_REQ_ACK") {
+                    // XXX
+                    var data = pending[sender];
+                    if (!data) { return; }
+                    addToFriendList(common, data, function (err) {
+                        if (err) {
+                            return void common.log('Error while adding that friend to the list');
+                        }
+                        common.log('Friend added to the list.');
+                    });
+                    return;
+                }
+                // TODO: timeout ACK: warn the user
+            } catch (e) {
+                console.error("Cannot parse direct message", msg || message, "from", sender, e);
+            }
+        });
+    };
+
+    Msg.inviteFromUserlist = function (common, netfluxId) {
+        var network = common.getNetwork();
+        var parsed = common.parsePadUrl(window.location.href);
+        if (!parsed.hashData) { return; } // TODO
+        // 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
+        network.sendto(netfluxId, msgStr);
+    };
+
+    return Msg;
+});