diff --git a/CHANGELOG.md b/CHANGELOG.md
index 54409aa98..87392485c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 4.4.0 (2019-02-14)
+
+[NEW] Callbacks bound to client events on presence channels will be called with an extra argument containing the `user_id` of the message sender
+
+[NEW] Warn when trying to trigger client-events to a channel that isn't subscribed
+
 ## 4.3.1 (2018-09-03)
 
 [FIXED] Honour protocol error codes received after connection succeeds
diff --git a/README.md b/README.md
index 5acfbd7b8..cf556ff28 100644
--- a/README.md
+++ b/README.md
@@ -417,6 +417,14 @@ channel.bind('my-event', function () {
 }, { name: 'Pusher' });
 ```
 
+For client-events on presence channels, bound callbacks will be called with an additional argument. This argument is an object containing the `user_id` of the user who triggered the event
+
+```
+presenceChannel.bind('client-message', function (data, metadata) {
+  console.log('received data from', metadata.user_id, ':', data);
+});
+```
+
 Unsubscribe behaviour varies depending on which parameters you provide it with. For example:
 
 ```js
diff --git a/dist/node/pusher.js b/dist/node/pusher.js
index 6060c6d6f..aa105d321 100644
--- a/dist/node/pusher.js
+++ b/dist/node/pusher.js
@@ -1,5 +1,5 @@
 /*!
- * Pusher JavaScript Library v4.3.1
+ * Pusher JavaScript Library v4.4.0
  * https://pusher.com/
  *
  * Copyright 2017, Pusher
@@ -119,16 +119,17 @@ module.exports =
 	                _this.timelineSender.send(_this.connection.isUsingTLS());
 	            }
 	        });
-	        this.connection.bind('message', function (params) {
-	            var internal = (params.event.indexOf('pusher_internal:') === 0);
-	            if (params.channel) {
-	                var channel = _this.channel(params.channel);
+	        this.connection.bind('message', function (event) {
+	            var eventName = event.event;
+	            var internal = (eventName.indexOf('pusher_internal:') === 0);
+	            if (event.channel) {
+	                var channel = _this.channel(event.channel);
 	                if (channel) {
-	                    channel.handleEvent(params.event, params.data);
+	                    channel.handleEvent(event);
 	                }
 	            }
 	            if (!internal) {
-	                _this.global_emitter.emit(params.event, params.data);
+	                _this.global_emitter.emit(event.event, event.data);
 	            }
 	        });
 	        this.connection.bind('connecting', function () {
@@ -833,7 +834,7 @@ module.exports =
 
 	"use strict";
 	var Defaults = {
-	    VERSION: "4.3.1",
+	    VERSION: "4.4.0",
 	    PROTOCOL: 7,
 	    host: 'ws.pusherapp.com',
 	    ws_port: 80,
@@ -1079,15 +1080,21 @@ module.exports =
 	        this.unbind_global();
 	        return this;
 	    };
-	    Dispatcher.prototype.emit = function (eventName, data) {
-	        var i;
-	        for (i = 0; i < this.global_callbacks.length; i++) {
+	    Dispatcher.prototype.emit = function (eventName, data, metadata) {
+	        for (var i = 0; i < this.global_callbacks.length; i++) {
 	            this.global_callbacks[i](eventName, data);
 	        }
 	        var callbacks = this.callbacks.get(eventName);
+	        var args = [];
+	        if (metadata) {
+	            args.push(data, metadata);
+	        }
+	        else if (data) {
+	            args.push(data);
+	        }
 	        if (callbacks && callbacks.length > 0) {
-	            for (i = 0; i < callbacks.length; i++) {
-	                callbacks[i].fn.call(callbacks[i].context || global, data);
+	            for (var i = 0; i < callbacks.length; i++) {
+	                callbacks[i].fn.apply(callbacks[i].context || global, args);
 	            }
 	        }
 	        else if (this.failThrough) {
@@ -1793,6 +1800,9 @@ module.exports =
 	        },
 	        javascriptQuickStart: {
 	            path: "/docs/javascript_quick_start"
+	        },
+	        triggeringClientEvents: {
+	            path: "/docs/client_api_guide/client_events#trigger-events"
 	        }
 	    }
 	};
@@ -2320,30 +2330,35 @@ module.exports =
 /***/ (function(module, exports) {
 
 	"use strict";
-	exports.decodeMessage = function (message) {
+	exports.decodeMessage = function (messageEvent) {
 	    try {
-	        var params = JSON.parse(message.data);
-	        if (typeof params.data === 'string') {
+	        var messageData = JSON.parse(messageEvent.data);
+	        var pusherEventData = messageData.data;
+	        if (typeof pusherEventData === 'string') {
 	            try {
-	                params.data = JSON.parse(params.data);
-	            }
-	            catch (e) {
-	                if (!(e instanceof SyntaxError)) {
-	                    throw e;
-	                }
+	                pusherEventData = JSON.parse(messageData.data);
 	            }
+	            catch (e) { }
+	        }
+	        var pusherEvent = {
+	            event: messageData.event,
+	            channel: messageData.channel,
+	            data: pusherEventData
+	        };
+	        if (messageData.user_id) {
+	            pusherEvent.user_id = messageData.user_id;
 	        }
-	        return params;
+	        return pusherEvent;
 	    }
 	    catch (e) {
-	        throw { type: 'MessageParseError', error: e, data: message.data };
+	        throw { type: 'MessageParseError', error: e, data: messageEvent.data };
 	    }
 	};
-	exports.encodeMessage = function (message) {
-	    return JSON.stringify(message);
+	exports.encodeMessage = function (event) {
+	    return JSON.stringify(event);
 	};
-	exports.processHandshake = function (message) {
-	    message = exports.decodeMessage(message);
+	exports.processHandshake = function (messageEvent) {
+	    var message = exports.decodeMessage(messageEvent);
 	    if (message.event === "pusher:connection_established") {
 	        if (!message.data.activity_timeout) {
 	            throw "No activity timeout specified in handshake";
@@ -2435,12 +2450,12 @@ module.exports =
 	        return this.transport.send(data);
 	    };
 	    Connection.prototype.send_event = function (name, data, channel) {
-	        var message = { event: name, data: data };
+	        var event = { event: name, data: data };
 	        if (channel) {
-	            message.channel = channel;
+	            event.channel = channel;
 	        }
-	        logger_1["default"].debug('Event sent', message);
-	        return this.send(Protocol.encodeMessage(message));
+	        logger_1["default"].debug('Event sent', event);
+	        return this.send(Protocol.encodeMessage(event));
 	    };
 	    Connection.prototype.ping = function () {
 	        if (this.transport.supportsPing()) {
@@ -2456,23 +2471,23 @@ module.exports =
 	    Connection.prototype.bindListeners = function () {
 	        var _this = this;
 	        var listeners = {
-	            message: function (m) {
-	                var message;
+	            message: function (messageEvent) {
+	                var pusherEvent;
 	                try {
-	                    message = Protocol.decodeMessage(m);
+	                    pusherEvent = Protocol.decodeMessage(messageEvent);
 	                }
 	                catch (e) {
 	                    _this.emit('error', {
 	                        type: 'MessageParseError',
 	                        error: e,
-	                        data: m.data
+	                        data: messageEvent.data
 	                    });
 	                }
-	                if (message !== undefined) {
-	                    logger_1["default"].debug('Event recd', message);
-	                    switch (message.event) {
+	                if (pusherEvent !== undefined) {
+	                    logger_1["default"].debug('Event recd', pusherEvent);
+	                    switch (pusherEvent.event) {
 	                        case 'pusher:error':
-	                            _this.emit('error', { type: 'PusherError', data: message.data });
+	                            _this.emit('error', { type: 'PusherError', data: pusherEvent.data });
 	                            break;
 	                        case 'pusher:ping':
 	                            _this.emit("ping");
@@ -2481,7 +2496,7 @@ module.exports =
 	                            _this.emit("pong");
 	                            break;
 	                    }
-	                    _this.emit('message', message);
+	                    _this.emit('message', pusherEvent);
 	                }
 	            },
 	            activity: function () {
@@ -2619,18 +2634,26 @@ module.exports =
 	            callback(error, authData);
 	        });
 	    };
-	    PresenceChannel.prototype.handleEvent = function (event, data) {
-	        switch (event) {
+	    PresenceChannel.prototype.handleEvent = function (event) {
+	        var eventName = event.event;
+	        if (eventName.indexOf("pusher_internal:") === 0) {
+	            this.handleInternalEvent(event);
+	        }
+	        else {
+	            var data = event.data;
+	            var metadata = {};
+	            if (event.user_id) {
+	                metadata.user_id = event.user_id;
+	            }
+	            this.emit(eventName, data, metadata);
+	        }
+	    };
+	    PresenceChannel.prototype.handleInternalEvent = function (event) {
+	        var eventName = event.event;
+	        var data = event.data;
+	        switch (eventName) {
 	            case "pusher_internal:subscription_succeeded":
-	                this.subscriptionPending = false;
-	                this.subscribed = true;
-	                if (this.subscriptionCancelled) {
-	                    this.pusher.unsubscribe(this.name);
-	                }
-	                else {
-	                    this.members.onSubscription(data);
-	                    this.emit("pusher:subscription_succeeded", this.members);
-	                }
+	                this.handleSubscriptionSucceededEvent(event);
 	                break;
 	            case "pusher_internal:member_added":
 	                var addedMember = this.members.addMember(data);
@@ -2642,8 +2665,17 @@ module.exports =
 	                    this.emit('pusher:member_removed', removedMember);
 	                }
 	                break;
-	            default:
-	                private_channel_1["default"].prototype.handleEvent.call(this, event, data);
+	        }
+	    };
+	    PresenceChannel.prototype.handleSubscriptionSucceededEvent = function (event) {
+	        this.subscriptionPending = false;
+	        this.subscribed = true;
+	        if (this.subscriptionCancelled) {
+	            this.pusher.unsubscribe(this.name);
+	        }
+	        else {
+	            this.members.onSubscription(event.data);
+	            this.emit("pusher:subscription_succeeded", this.members);
 	        }
 	    };
 	    PresenceChannel.prototype.disconnect = function () {
@@ -2696,6 +2728,7 @@ module.exports =
 	var dispatcher_1 = __webpack_require__(14);
 	var Errors = __webpack_require__(46);
 	var logger_1 = __webpack_require__(16);
+	var url_store_1 = __webpack_require__(30);
 	var Channel = (function (_super) {
 	    __extends(Channel, _super);
 	    function Channel(name, pusher) {
@@ -2715,27 +2748,35 @@ module.exports =
 	        if (event.indexOf("client-") !== 0) {
 	            throw new Errors.BadEventName("Event '" + event + "' does not start with 'client-'");
 	        }
+	        if (!this.subscribed) {
+	            var suffix = url_store_1["default"].buildLogSuffix("triggeringClientEvents");
+	            logger_1["default"].warn("Client event triggered before channel 'subscription_succeeded' event . " + suffix);
+	        }
 	        return this.pusher.send_event(event, data, this.name);
 	    };
 	    Channel.prototype.disconnect = function () {
 	        this.subscribed = false;
 	        this.subscriptionPending = false;
 	    };
-	    Channel.prototype.handleEvent = function (event, data) {
-	        if (event.indexOf("pusher_internal:") === 0) {
-	            if (event === "pusher_internal:subscription_succeeded") {
-	                this.subscriptionPending = false;
-	                this.subscribed = true;
-	                if (this.subscriptionCancelled) {
-	                    this.pusher.unsubscribe(this.name);
-	                }
-	                else {
-	                    this.emit("pusher:subscription_succeeded", data);
-	                }
-	            }
+	    Channel.prototype.handleEvent = function (event) {
+	        var eventName = event.event;
+	        var data = event.data;
+	        if (eventName === "pusher_internal:subscription_succeeded") {
+	            this.handleSubscriptionSucceededEvent(event);
+	        }
+	        else if (eventName.indexOf("pusher_internal:") !== 0) {
+	            var metadata = {};
+	            this.emit(eventName, data, metadata);
+	        }
+	    };
+	    Channel.prototype.handleSubscriptionSucceededEvent = function (event) {
+	        this.subscriptionPending = false;
+	        this.subscribed = true;
+	        if (this.subscriptionCancelled) {
+	            this.pusher.unsubscribe(this.name);
 	        }
 	        else {
-	            this.emit(event, data);
+	            this.emit("pusher:subscription_succeeded", event.data);
 	        }
 	    };
 	    Channel.prototype.subscribe = function () {
@@ -2747,7 +2788,7 @@ module.exports =
 	        this.subscriptionCancelled = false;
 	        this.authorize(this.pusher.connection.socket_id, function (error, data) {
 	            if (error) {
-	                _this.handleEvent('pusher:subscription_error', data);
+	                _this.emit('pusher:subscription_error', data);
 	            }
 	            else {
 	                _this.pusher.send_event('pusher:subscribe', {
@@ -2949,12 +2990,14 @@ module.exports =
 	    EncryptedChannel.prototype.trigger = function (event, data) {
 	        throw new Errors.UnsupportedFeature('Client events are not currently supported for encrypted channels');
 	    };
-	    EncryptedChannel.prototype.handleEvent = function (event, data) {
-	        if (event.indexOf("pusher_internal:") === 0 || event.indexOf("pusher:") === 0) {
-	            _super.prototype.handleEvent.call(this, event, data);
+	    EncryptedChannel.prototype.handleEvent = function (event) {
+	        var eventName = event.event;
+	        var data = event.data;
+	        if (eventName.indexOf("pusher_internal:") === 0 || eventName.indexOf("pusher:") === 0) {
+	            _super.prototype.handleEvent.call(this, event);
 	            return;
 	        }
-	        this.handleEncryptedEvent(event, data);
+	        this.handleEncryptedEvent(eventName, data);
 	    };
 	    EncryptedChannel.prototype.handleEncryptedEvent = function (event, data) {
 	        var _this = this;
diff --git a/dist/react-native/pusher.js b/dist/react-native/pusher.js
index e3ee99190..daf6dfb39 100644
--- a/dist/react-native/pusher.js
+++ b/dist/react-native/pusher.js
@@ -1,5 +1,5 @@
 /*!
- * Pusher JavaScript Library v4.3.1
+ * Pusher JavaScript Library v4.4.0
  * https://pusher.com/
  *
  * Copyright 2017, Pusher
@@ -119,16 +119,17 @@ module.exports =
 	                _this.timelineSender.send(_this.connection.isUsingTLS());
 	            }
 	        });
-	        this.connection.bind('message', function (params) {
-	            var internal = (params.event.indexOf('pusher_internal:') === 0);
-	            if (params.channel) {
-	                var channel = _this.channel(params.channel);
+	        this.connection.bind('message', function (event) {
+	            var eventName = event.event;
+	            var internal = (eventName.indexOf('pusher_internal:') === 0);
+	            if (event.channel) {
+	                var channel = _this.channel(event.channel);
 	                if (channel) {
-	                    channel.handleEvent(params.event, params.data);
+	                    channel.handleEvent(event);
 	                }
 	            }
 	            if (!internal) {
-	                _this.global_emitter.emit(params.event, params.data);
+	                _this.global_emitter.emit(event.event, event.data);
 	            }
 	        });
 	        this.connection.bind('connecting', function () {
@@ -831,7 +832,7 @@ module.exports =
 
 	"use strict";
 	var Defaults = {
-	    VERSION: "4.3.1",
+	    VERSION: "4.4.0",
 	    PROTOCOL: 7,
 	    host: 'ws.pusherapp.com',
 	    ws_port: 80,
@@ -1077,15 +1078,21 @@ module.exports =
 	        this.unbind_global();
 	        return this;
 	    };
-	    Dispatcher.prototype.emit = function (eventName, data) {
-	        var i;
-	        for (i = 0; i < this.global_callbacks.length; i++) {
+	    Dispatcher.prototype.emit = function (eventName, data, metadata) {
+	        for (var i = 0; i < this.global_callbacks.length; i++) {
 	            this.global_callbacks[i](eventName, data);
 	        }
 	        var callbacks = this.callbacks.get(eventName);
+	        var args = [];
+	        if (metadata) {
+	            args.push(data, metadata);
+	        }
+	        else if (data) {
+	            args.push(data);
+	        }
 	        if (callbacks && callbacks.length > 0) {
-	            for (i = 0; i < callbacks.length; i++) {
-	                callbacks[i].fn.call(callbacks[i].context || global, data);
+	            for (var i = 0; i < callbacks.length; i++) {
+	                callbacks[i].fn.apply(callbacks[i].context || global, args);
 	            }
 	        }
 	        else if (this.failThrough) {
@@ -1806,6 +1813,9 @@ module.exports =
 	        },
 	        javascriptQuickStart: {
 	            path: "/docs/javascript_quick_start"
+	        },
+	        triggeringClientEvents: {
+	            path: "/docs/client_api_guide/client_events#trigger-events"
 	        }
 	    }
 	};
@@ -2333,30 +2343,35 @@ module.exports =
 /***/ (function(module, exports) {
 
 	"use strict";
-	exports.decodeMessage = function (message) {
+	exports.decodeMessage = function (messageEvent) {
 	    try {
-	        var params = JSON.parse(message.data);
-	        if (typeof params.data === 'string') {
+	        var messageData = JSON.parse(messageEvent.data);
+	        var pusherEventData = messageData.data;
+	        if (typeof pusherEventData === 'string') {
 	            try {
-	                params.data = JSON.parse(params.data);
-	            }
-	            catch (e) {
-	                if (!(e instanceof SyntaxError)) {
-	                    throw e;
-	                }
+	                pusherEventData = JSON.parse(messageData.data);
 	            }
+	            catch (e) { }
+	        }
+	        var pusherEvent = {
+	            event: messageData.event,
+	            channel: messageData.channel,
+	            data: pusherEventData
+	        };
+	        if (messageData.user_id) {
+	            pusherEvent.user_id = messageData.user_id;
 	        }
-	        return params;
+	        return pusherEvent;
 	    }
 	    catch (e) {
-	        throw { type: 'MessageParseError', error: e, data: message.data };
+	        throw { type: 'MessageParseError', error: e, data: messageEvent.data };
 	    }
 	};
-	exports.encodeMessage = function (message) {
-	    return JSON.stringify(message);
+	exports.encodeMessage = function (event) {
+	    return JSON.stringify(event);
 	};
-	exports.processHandshake = function (message) {
-	    message = exports.decodeMessage(message);
+	exports.processHandshake = function (messageEvent) {
+	    var message = exports.decodeMessage(messageEvent);
 	    if (message.event === "pusher:connection_established") {
 	        if (!message.data.activity_timeout) {
 	            throw "No activity timeout specified in handshake";
@@ -2448,12 +2463,12 @@ module.exports =
 	        return this.transport.send(data);
 	    };
 	    Connection.prototype.send_event = function (name, data, channel) {
-	        var message = { event: name, data: data };
+	        var event = { event: name, data: data };
 	        if (channel) {
-	            message.channel = channel;
+	            event.channel = channel;
 	        }
-	        logger_1["default"].debug('Event sent', message);
-	        return this.send(Protocol.encodeMessage(message));
+	        logger_1["default"].debug('Event sent', event);
+	        return this.send(Protocol.encodeMessage(event));
 	    };
 	    Connection.prototype.ping = function () {
 	        if (this.transport.supportsPing()) {
@@ -2469,23 +2484,23 @@ module.exports =
 	    Connection.prototype.bindListeners = function () {
 	        var _this = this;
 	        var listeners = {
-	            message: function (m) {
-	                var message;
+	            message: function (messageEvent) {
+	                var pusherEvent;
 	                try {
-	                    message = Protocol.decodeMessage(m);
+	                    pusherEvent = Protocol.decodeMessage(messageEvent);
 	                }
 	                catch (e) {
 	                    _this.emit('error', {
 	                        type: 'MessageParseError',
 	                        error: e,
-	                        data: m.data
+	                        data: messageEvent.data
 	                    });
 	                }
-	                if (message !== undefined) {
-	                    logger_1["default"].debug('Event recd', message);
-	                    switch (message.event) {
+	                if (pusherEvent !== undefined) {
+	                    logger_1["default"].debug('Event recd', pusherEvent);
+	                    switch (pusherEvent.event) {
 	                        case 'pusher:error':
-	                            _this.emit('error', { type: 'PusherError', data: message.data });
+	                            _this.emit('error', { type: 'PusherError', data: pusherEvent.data });
 	                            break;
 	                        case 'pusher:ping':
 	                            _this.emit("ping");
@@ -2494,7 +2509,7 @@ module.exports =
 	                            _this.emit("pong");
 	                            break;
 	                    }
-	                    _this.emit('message', message);
+	                    _this.emit('message', pusherEvent);
 	                }
 	            },
 	            activity: function () {
@@ -2632,18 +2647,26 @@ module.exports =
 	            callback(error, authData);
 	        });
 	    };
-	    PresenceChannel.prototype.handleEvent = function (event, data) {
-	        switch (event) {
+	    PresenceChannel.prototype.handleEvent = function (event) {
+	        var eventName = event.event;
+	        if (eventName.indexOf("pusher_internal:") === 0) {
+	            this.handleInternalEvent(event);
+	        }
+	        else {
+	            var data = event.data;
+	            var metadata = {};
+	            if (event.user_id) {
+	                metadata.user_id = event.user_id;
+	            }
+	            this.emit(eventName, data, metadata);
+	        }
+	    };
+	    PresenceChannel.prototype.handleInternalEvent = function (event) {
+	        var eventName = event.event;
+	        var data = event.data;
+	        switch (eventName) {
 	            case "pusher_internal:subscription_succeeded":
-	                this.subscriptionPending = false;
-	                this.subscribed = true;
-	                if (this.subscriptionCancelled) {
-	                    this.pusher.unsubscribe(this.name);
-	                }
-	                else {
-	                    this.members.onSubscription(data);
-	                    this.emit("pusher:subscription_succeeded", this.members);
-	                }
+	                this.handleSubscriptionSucceededEvent(event);
 	                break;
 	            case "pusher_internal:member_added":
 	                var addedMember = this.members.addMember(data);
@@ -2655,8 +2678,17 @@ module.exports =
 	                    this.emit('pusher:member_removed', removedMember);
 	                }
 	                break;
-	            default:
-	                private_channel_1["default"].prototype.handleEvent.call(this, event, data);
+	        }
+	    };
+	    PresenceChannel.prototype.handleSubscriptionSucceededEvent = function (event) {
+	        this.subscriptionPending = false;
+	        this.subscribed = true;
+	        if (this.subscriptionCancelled) {
+	            this.pusher.unsubscribe(this.name);
+	        }
+	        else {
+	            this.members.onSubscription(event.data);
+	            this.emit("pusher:subscription_succeeded", this.members);
 	        }
 	    };
 	    PresenceChannel.prototype.disconnect = function () {
@@ -2709,6 +2741,7 @@ module.exports =
 	var dispatcher_1 = __webpack_require__(14);
 	var Errors = __webpack_require__(45);
 	var logger_1 = __webpack_require__(16);
+	var url_store_1 = __webpack_require__(29);
 	var Channel = (function (_super) {
 	    __extends(Channel, _super);
 	    function Channel(name, pusher) {
@@ -2728,27 +2761,35 @@ module.exports =
 	        if (event.indexOf("client-") !== 0) {
 	            throw new Errors.BadEventName("Event '" + event + "' does not start with 'client-'");
 	        }
+	        if (!this.subscribed) {
+	            var suffix = url_store_1["default"].buildLogSuffix("triggeringClientEvents");
+	            logger_1["default"].warn("Client event triggered before channel 'subscription_succeeded' event . " + suffix);
+	        }
 	        return this.pusher.send_event(event, data, this.name);
 	    };
 	    Channel.prototype.disconnect = function () {
 	        this.subscribed = false;
 	        this.subscriptionPending = false;
 	    };
-	    Channel.prototype.handleEvent = function (event, data) {
-	        if (event.indexOf("pusher_internal:") === 0) {
-	            if (event === "pusher_internal:subscription_succeeded") {
-	                this.subscriptionPending = false;
-	                this.subscribed = true;
-	                if (this.subscriptionCancelled) {
-	                    this.pusher.unsubscribe(this.name);
-	                }
-	                else {
-	                    this.emit("pusher:subscription_succeeded", data);
-	                }
-	            }
+	    Channel.prototype.handleEvent = function (event) {
+	        var eventName = event.event;
+	        var data = event.data;
+	        if (eventName === "pusher_internal:subscription_succeeded") {
+	            this.handleSubscriptionSucceededEvent(event);
+	        }
+	        else if (eventName.indexOf("pusher_internal:") !== 0) {
+	            var metadata = {};
+	            this.emit(eventName, data, metadata);
+	        }
+	    };
+	    Channel.prototype.handleSubscriptionSucceededEvent = function (event) {
+	        this.subscriptionPending = false;
+	        this.subscribed = true;
+	        if (this.subscriptionCancelled) {
+	            this.pusher.unsubscribe(this.name);
 	        }
 	        else {
-	            this.emit(event, data);
+	            this.emit("pusher:subscription_succeeded", event.data);
 	        }
 	    };
 	    Channel.prototype.subscribe = function () {
@@ -2760,7 +2801,7 @@ module.exports =
 	        this.subscriptionCancelled = false;
 	        this.authorize(this.pusher.connection.socket_id, function (error, data) {
 	            if (error) {
-	                _this.handleEvent('pusher:subscription_error', data);
+	                _this.emit('pusher:subscription_error', data);
 	            }
 	            else {
 	                _this.pusher.send_event('pusher:subscribe', {
@@ -2962,12 +3003,14 @@ module.exports =
 	    EncryptedChannel.prototype.trigger = function (event, data) {
 	        throw new Errors.UnsupportedFeature('Client events are not currently supported for encrypted channels');
 	    };
-	    EncryptedChannel.prototype.handleEvent = function (event, data) {
-	        if (event.indexOf("pusher_internal:") === 0 || event.indexOf("pusher:") === 0) {
-	            _super.prototype.handleEvent.call(this, event, data);
+	    EncryptedChannel.prototype.handleEvent = function (event) {
+	        var eventName = event.event;
+	        var data = event.data;
+	        if (eventName.indexOf("pusher_internal:") === 0 || eventName.indexOf("pusher:") === 0) {
+	            _super.prototype.handleEvent.call(this, event);
 	            return;
 	        }
-	        this.handleEncryptedEvent(event, data);
+	        this.handleEncryptedEvent(eventName, data);
 	    };
 	    EncryptedChannel.prototype.handleEncryptedEvent = function (event, data) {
 	        var _this = this;
diff --git a/dist/web/pusher.js b/dist/web/pusher.js
index fd2d23208..5d47faf51 100644
--- a/dist/web/pusher.js
+++ b/dist/web/pusher.js
@@ -1,5 +1,5 @@
 /*!
- * Pusher JavaScript Library v4.3.1
+ * Pusher JavaScript Library v4.4.0
  * https://pusher.com/
  *
  * Copyright 2017, Pusher
@@ -128,16 +128,17 @@ return /******/ (function(modules) { // webpackBootstrap
 	                _this.timelineSender.send(_this.connection.isUsingTLS());
 	            }
 	        });
-	        this.connection.bind('message', function (params) {
-	            var internal = (params.event.indexOf('pusher_internal:') === 0);
-	            if (params.channel) {
-	                var channel = _this.channel(params.channel);
+	        this.connection.bind('message', function (event) {
+	            var eventName = event.event;
+	            var internal = (eventName.indexOf('pusher_internal:') === 0);
+	            if (event.channel) {
+	                var channel = _this.channel(event.channel);
 	                if (channel) {
-	                    channel.handleEvent(params.event, params.data);
+	                    channel.handleEvent(event);
 	                }
 	            }
 	            if (!internal) {
-	                _this.global_emitter.emit(params.event, params.data);
+	                _this.global_emitter.emit(event.event, event.data);
 	            }
 	        });
 	        this.connection.bind('connecting', function () {
@@ -479,7 +480,7 @@ return /******/ (function(modules) { // webpackBootstrap
 
 	"use strict";
 	var Defaults = {
-	    VERSION: "4.3.1",
+	    VERSION: "4.4.0",
 	    PROTOCOL: 7,
 	    host: 'ws.pusherapp.com',
 	    ws_port: 80,
@@ -1029,6 +1030,9 @@ return /******/ (function(modules) { // webpackBootstrap
 	        },
 	        javascriptQuickStart: {
 	            path: "/docs/javascript_quick_start"
+	        },
+	        triggeringClientEvents: {
+	            path: "/docs/client_api_guide/client_events#trigger-events"
 	        }
 	    }
 	};
@@ -1585,15 +1589,21 @@ return /******/ (function(modules) { // webpackBootstrap
 	        this.unbind_global();
 	        return this;
 	    };
-	    Dispatcher.prototype.emit = function (eventName, data) {
-	        var i;
-	        for (i = 0; i < this.global_callbacks.length; i++) {
+	    Dispatcher.prototype.emit = function (eventName, data, metadata) {
+	        for (var i = 0; i < this.global_callbacks.length; i++) {
 	            this.global_callbacks[i](eventName, data);
 	        }
 	        var callbacks = this.callbacks.get(eventName);
+	        var args = [];
+	        if (metadata) {
+	            args.push(data, metadata);
+	        }
+	        else if (data) {
+	            args.push(data);
+	        }
 	        if (callbacks && callbacks.length > 0) {
-	            for (i = 0; i < callbacks.length; i++) {
-	                callbacks[i].fn.call(callbacks[i].context || (window), data);
+	            for (var i = 0; i < callbacks.length; i++) {
+	                callbacks[i].fn.apply(callbacks[i].context || (window), args);
 	            }
 	        }
 	        else if (this.failThrough) {
@@ -2820,30 +2830,35 @@ return /******/ (function(modules) { // webpackBootstrap
 /***/ (function(module, exports) {
 
 	"use strict";
-	exports.decodeMessage = function (message) {
+	exports.decodeMessage = function (messageEvent) {
 	    try {
-	        var params = JSON.parse(message.data);
-	        if (typeof params.data === 'string') {
+	        var messageData = JSON.parse(messageEvent.data);
+	        var pusherEventData = messageData.data;
+	        if (typeof pusherEventData === 'string') {
 	            try {
-	                params.data = JSON.parse(params.data);
-	            }
-	            catch (e) {
-	                if (!(e instanceof SyntaxError)) {
-	                    throw e;
-	                }
+	                pusherEventData = JSON.parse(messageData.data);
 	            }
+	            catch (e) { }
+	        }
+	        var pusherEvent = {
+	            event: messageData.event,
+	            channel: messageData.channel,
+	            data: pusherEventData
+	        };
+	        if (messageData.user_id) {
+	            pusherEvent.user_id = messageData.user_id;
 	        }
-	        return params;
+	        return pusherEvent;
 	    }
 	    catch (e) {
-	        throw { type: 'MessageParseError', error: e, data: message.data };
+	        throw { type: 'MessageParseError', error: e, data: messageEvent.data };
 	    }
 	};
-	exports.encodeMessage = function (message) {
-	    return JSON.stringify(message);
+	exports.encodeMessage = function (event) {
+	    return JSON.stringify(event);
 	};
-	exports.processHandshake = function (message) {
-	    message = exports.decodeMessage(message);
+	exports.processHandshake = function (messageEvent) {
+	    var message = exports.decodeMessage(messageEvent);
 	    if (message.event === "pusher:connection_established") {
 	        if (!message.data.activity_timeout) {
 	            throw "No activity timeout specified in handshake";
@@ -2935,12 +2950,12 @@ return /******/ (function(modules) { // webpackBootstrap
 	        return this.transport.send(data);
 	    };
 	    Connection.prototype.send_event = function (name, data, channel) {
-	        var message = { event: name, data: data };
+	        var event = { event: name, data: data };
 	        if (channel) {
-	            message.channel = channel;
+	            event.channel = channel;
 	        }
-	        logger_1["default"].debug('Event sent', message);
-	        return this.send(Protocol.encodeMessage(message));
+	        logger_1["default"].debug('Event sent', event);
+	        return this.send(Protocol.encodeMessage(event));
 	    };
 	    Connection.prototype.ping = function () {
 	        if (this.transport.supportsPing()) {
@@ -2956,23 +2971,23 @@ return /******/ (function(modules) { // webpackBootstrap
 	    Connection.prototype.bindListeners = function () {
 	        var _this = this;
 	        var listeners = {
-	            message: function (m) {
-	                var message;
+	            message: function (messageEvent) {
+	                var pusherEvent;
 	                try {
-	                    message = Protocol.decodeMessage(m);
+	                    pusherEvent = Protocol.decodeMessage(messageEvent);
 	                }
 	                catch (e) {
 	                    _this.emit('error', {
 	                        type: 'MessageParseError',
 	                        error: e,
-	                        data: m.data
+	                        data: messageEvent.data
 	                    });
 	                }
-	                if (message !== undefined) {
-	                    logger_1["default"].debug('Event recd', message);
-	                    switch (message.event) {
+	                if (pusherEvent !== undefined) {
+	                    logger_1["default"].debug('Event recd', pusherEvent);
+	                    switch (pusherEvent.event) {
 	                        case 'pusher:error':
-	                            _this.emit('error', { type: 'PusherError', data: message.data });
+	                            _this.emit('error', { type: 'PusherError', data: pusherEvent.data });
 	                            break;
 	                        case 'pusher:ping':
 	                            _this.emit("ping");
@@ -2981,7 +2996,7 @@ return /******/ (function(modules) { // webpackBootstrap
 	                            _this.emit("pong");
 	                            break;
 	                    }
-	                    _this.emit('message', message);
+	                    _this.emit('message', pusherEvent);
 	                }
 	            },
 	            activity: function () {
@@ -3119,18 +3134,26 @@ return /******/ (function(modules) { // webpackBootstrap
 	            callback(error, authData);
 	        });
 	    };
-	    PresenceChannel.prototype.handleEvent = function (event, data) {
-	        switch (event) {
+	    PresenceChannel.prototype.handleEvent = function (event) {
+	        var eventName = event.event;
+	        if (eventName.indexOf("pusher_internal:") === 0) {
+	            this.handleInternalEvent(event);
+	        }
+	        else {
+	            var data = event.data;
+	            var metadata = {};
+	            if (event.user_id) {
+	                metadata.user_id = event.user_id;
+	            }
+	            this.emit(eventName, data, metadata);
+	        }
+	    };
+	    PresenceChannel.prototype.handleInternalEvent = function (event) {
+	        var eventName = event.event;
+	        var data = event.data;
+	        switch (eventName) {
 	            case "pusher_internal:subscription_succeeded":
-	                this.subscriptionPending = false;
-	                this.subscribed = true;
-	                if (this.subscriptionCancelled) {
-	                    this.pusher.unsubscribe(this.name);
-	                }
-	                else {
-	                    this.members.onSubscription(data);
-	                    this.emit("pusher:subscription_succeeded", this.members);
-	                }
+	                this.handleSubscriptionSucceededEvent(event);
 	                break;
 	            case "pusher_internal:member_added":
 	                var addedMember = this.members.addMember(data);
@@ -3142,8 +3165,17 @@ return /******/ (function(modules) { // webpackBootstrap
 	                    this.emit('pusher:member_removed', removedMember);
 	                }
 	                break;
-	            default:
-	                private_channel_1["default"].prototype.handleEvent.call(this, event, data);
+	        }
+	    };
+	    PresenceChannel.prototype.handleSubscriptionSucceededEvent = function (event) {
+	        this.subscriptionPending = false;
+	        this.subscribed = true;
+	        if (this.subscriptionCancelled) {
+	            this.pusher.unsubscribe(this.name);
+	        }
+	        else {
+	            this.members.onSubscription(event.data);
+	            this.emit("pusher:subscription_succeeded", this.members);
 	        }
 	    };
 	    PresenceChannel.prototype.disconnect = function () {
@@ -3196,6 +3228,7 @@ return /******/ (function(modules) { // webpackBootstrap
 	var dispatcher_1 = __webpack_require__(24);
 	var Errors = __webpack_require__(31);
 	var logger_1 = __webpack_require__(8);
+	var url_store_1 = __webpack_require__(14);
 	var Channel = (function (_super) {
 	    __extends(Channel, _super);
 	    function Channel(name, pusher) {
@@ -3215,27 +3248,35 @@ return /******/ (function(modules) { // webpackBootstrap
 	        if (event.indexOf("client-") !== 0) {
 	            throw new Errors.BadEventName("Event '" + event + "' does not start with 'client-'");
 	        }
+	        if (!this.subscribed) {
+	            var suffix = url_store_1["default"].buildLogSuffix("triggeringClientEvents");
+	            logger_1["default"].warn("Client event triggered before channel 'subscription_succeeded' event . " + suffix);
+	        }
 	        return this.pusher.send_event(event, data, this.name);
 	    };
 	    Channel.prototype.disconnect = function () {
 	        this.subscribed = false;
 	        this.subscriptionPending = false;
 	    };
-	    Channel.prototype.handleEvent = function (event, data) {
-	        if (event.indexOf("pusher_internal:") === 0) {
-	            if (event === "pusher_internal:subscription_succeeded") {
-	                this.subscriptionPending = false;
-	                this.subscribed = true;
-	                if (this.subscriptionCancelled) {
-	                    this.pusher.unsubscribe(this.name);
-	                }
-	                else {
-	                    this.emit("pusher:subscription_succeeded", data);
-	                }
-	            }
+	    Channel.prototype.handleEvent = function (event) {
+	        var eventName = event.event;
+	        var data = event.data;
+	        if (eventName === "pusher_internal:subscription_succeeded") {
+	            this.handleSubscriptionSucceededEvent(event);
+	        }
+	        else if (eventName.indexOf("pusher_internal:") !== 0) {
+	            var metadata = {};
+	            this.emit(eventName, data, metadata);
+	        }
+	    };
+	    Channel.prototype.handleSubscriptionSucceededEvent = function (event) {
+	        this.subscriptionPending = false;
+	        this.subscribed = true;
+	        if (this.subscriptionCancelled) {
+	            this.pusher.unsubscribe(this.name);
 	        }
 	        else {
-	            this.emit(event, data);
+	            this.emit("pusher:subscription_succeeded", event.data);
 	        }
 	    };
 	    Channel.prototype.subscribe = function () {
@@ -3247,7 +3288,7 @@ return /******/ (function(modules) { // webpackBootstrap
 	        this.subscriptionCancelled = false;
 	        this.authorize(this.pusher.connection.socket_id, function (error, data) {
 	            if (error) {
-	                _this.handleEvent('pusher:subscription_error', data);
+	                _this.emit('pusher:subscription_error', data);
 	            }
 	            else {
 	                _this.pusher.send_event('pusher:subscribe', {
@@ -3381,12 +3422,14 @@ return /******/ (function(modules) { // webpackBootstrap
 	    EncryptedChannel.prototype.trigger = function (event, data) {
 	        throw new Errors.UnsupportedFeature('Client events are not currently supported for encrypted channels');
 	    };
-	    EncryptedChannel.prototype.handleEvent = function (event, data) {
-	        if (event.indexOf("pusher_internal:") === 0 || event.indexOf("pusher:") === 0) {
-	            _super.prototype.handleEvent.call(this, event, data);
+	    EncryptedChannel.prototype.handleEvent = function (event) {
+	        var eventName = event.event;
+	        var data = event.data;
+	        if (eventName.indexOf("pusher_internal:") === 0 || eventName.indexOf("pusher:") === 0) {
+	            _super.prototype.handleEvent.call(this, event);
 	            return;
 	        }
-	        this.handleEncryptedEvent(event, data);
+	        this.handleEncryptedEvent(eventName, data);
 	    };
 	    EncryptedChannel.prototype.handleEncryptedEvent = function (event, data) {
 	        var _this = this;
diff --git a/dist/web/pusher.min.js b/dist/web/pusher.min.js
index 2319e93a5..fa48c87e5 100644
--- a/dist/web/pusher.min.js
+++ b/dist/web/pusher.min.js
@@ -1,13 +1,13 @@
 /*!
- * Pusher JavaScript Library v4.3.1
+ * Pusher JavaScript Library v4.4.0
  * https://pusher.com/
  *
  * Copyright 2017, Pusher
  * Released under the MIT licence.
  */
-!function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):"object"==typeof exports?exports.Pusher=e():t.Pusher=e()}(this,function(){return function(t){function e(r){if(n[r])return n[r].exports;var i=n[r]={exports:{},id:r,loaded:!1};return t[r].call(i.exports,i,i.exports,e),i.loaded=!0,i.exports}var n={};return e.m=t,e.c=n,e.p="",e(0)}([function(t,e,n){"use strict";var r=n(1);t.exports=r.default},function(t,e,n){"use strict";function r(t){if(null===t||void 0===t)throw"You must pass your app key when you instantiate Pusher."}var i=n(2),o=n(9),s=n(24),a=n(39),u=n(40),c=n(41),h=n(12),f=n(5),l=n(71),p=n(8),d=n(43),y=n(14),g=function(){function t(e,n){var h=this;if(r(e),n=n||{},!n.cluster&&!n.wsHost&&!n.httpHost){var g=y.default.buildLogSuffix("javascriptQuickStart");p.default.warn("You should always specify a cluster when connecting. "+g)}this.key=e,this.config=o.extend(l.getGlobalConfig(),n.cluster?l.getClusterConfig(n.cluster):{},n),this.channels=d.default.createChannels(),this.global_emitter=new s.default,this.sessionID=Math.floor(1e9*Math.random()),this.timeline=new a.default(this.key,this.sessionID,{cluster:this.config.cluster,features:t.getClientFeatures(),params:this.config.timelineParams||{},limit:50,level:u.default.INFO,version:f.default.VERSION}),this.config.disableStats||(this.timelineSender=d.default.createTimelineSender(this.timeline,{host:this.config.statsHost,path:"/timeline/v2/"+i.default.TimelineTransport.name}));var v=function(t){var e=o.extend({},h.config,t);return c.build(i.default.getDefaultStrategy(e),e)};this.connection=d.default.createConnectionManager(this.key,o.extend({getStrategy:v,timeline:this.timeline,activityTimeout:this.config.activity_timeout,pongTimeout:this.config.pong_timeout,unavailableTimeout:this.config.unavailable_timeout},this.config,{useTLS:this.shouldUseTLS()})),this.connection.bind("connected",function(){h.subscribeAll(),h.timelineSender&&h.timelineSender.send(h.connection.isUsingTLS())}),this.connection.bind("message",function(t){var e=0===t.event.indexOf("pusher_internal:");if(t.channel){var n=h.channel(t.channel);n&&n.handleEvent(t.event,t.data)}e||h.global_emitter.emit(t.event,t.data)}),this.connection.bind("connecting",function(){h.channels.disconnect()}),this.connection.bind("disconnected",function(){h.channels.disconnect()}),this.connection.bind("error",function(t){p.default.warn("Error",t)}),t.instances.push(this),this.timeline.info({instances:t.instances.length}),t.isReady&&this.connect()}return t.ready=function(){t.isReady=!0;for(var e=0,n=t.instances.length;e<n;e++)t.instances[e].connect()},t.log=function(e){t.logToConsole&&window.console&&window.console.log&&window.console.log(e)},t.getClientFeatures=function(){return o.keys(o.filterObject({ws:i.default.Transports.ws},function(t){return t.isSupported({})}))},t.prototype.channel=function(t){return this.channels.find(t)},t.prototype.allChannels=function(){return this.channels.all()},t.prototype.connect=function(){if(this.connection.connect(),this.timelineSender&&!this.timelineSenderTimer){var t=this.connection.isUsingTLS(),e=this.timelineSender;this.timelineSenderTimer=new h.PeriodicTimer(6e4,function(){e.send(t)})}},t.prototype.disconnect=function(){this.connection.disconnect(),this.timelineSenderTimer&&(this.timelineSenderTimer.ensureAborted(),this.timelineSenderTimer=null)},t.prototype.bind=function(t,e,n){return this.global_emitter.bind(t,e,n),this},t.prototype.unbind=function(t,e,n){return this.global_emitter.unbind(t,e,n),this},t.prototype.bind_global=function(t){return this.global_emitter.bind_global(t),this},t.prototype.unbind_global=function(t){return this.global_emitter.unbind_global(t),this},t.prototype.unbind_all=function(t){return this.global_emitter.unbind_all(),this},t.prototype.subscribeAll=function(){var t;for(t in this.channels.channels)this.channels.channels.hasOwnProperty(t)&&this.subscribe(t)},t.prototype.subscribe=function(t){var e=this.channels.add(t,this);return e.subscriptionPending&&e.subscriptionCancelled?e.reinstateSubscription():e.subscriptionPending||"connected"!==this.connection.state||e.subscribe(),e},t.prototype.unsubscribe=function(t){var e=this.channels.find(t);e&&e.subscriptionPending?e.cancelSubscription():(e=this.channels.remove(t),e&&"connected"===this.connection.state&&e.unsubscribe())},t.prototype.send_event=function(t,e,n){return this.connection.send_event(t,e,n)},t.prototype.shouldUseTLS=function(){return"https:"===i.default.getProtocol()||(this.config.forceTLS===!0||Boolean(this.config.encrypted))},t.instances=[],t.isReady=!1,t.logToConsole=!1,t.Runtime=i.default,t.ScriptReceivers=i.default.ScriptReceivers,t.DependenciesReceivers=i.default.DependenciesReceivers,t.auth_callbacks=i.default.auth_callbacks,t}();e.__esModule=!0,e.default=g,i.default.setup(g)},function(t,e,n){"use strict";var r=n(3),i=n(7),o=n(15),s=n(16),a=n(17),u=n(4),c=n(18),h=n(19),f=n(26),l=n(27),p=n(28),d=n(29),y={nextAuthCallbackID:1,auth_callbacks:{},ScriptReceivers:u.ScriptReceivers,DependenciesReceivers:r.DependenciesReceivers,getDefaultStrategy:l.default,Transports:h.default,transportConnectionInitializer:p.default,HTTPFactory:d.default,TimelineTransport:c.default,getXHRAPI:function(){return window.XMLHttpRequest},getWebSocketAPI:function(){return window.WebSocket||window.MozWebSocket},setup:function(t){var e=this;window.Pusher=t;var 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strict";e.decodeMessage=function(t){try{var e=JSON.parse(t.data);if("string"==typeof e.data)try{e.data=JSON.parse(e.data)}catch(t){if(!(t instanceof SyntaxError))throw t}return e}catch(e){throw{type:"MessageParseError",error:e,data:t.data}}},e.encodeMessage=function(t){return JSON.stringify(t)},e.processHandshake=function(t){if(t=e.decodeMessage(t),"pusher:connection_established"===t.event){if(!t.data.activity_timeout)throw"No activity timeout specified in handshake";return{action:"connected",id:t.data.socket_id,activityTimeout:1e3*t.data.activity_timeout}}if("pusher:error"===t.event)return{action:this.getCloseAction(t.data),error:this.getCloseError(t.data)};throw"Invalid handshake"},e.getCloseAction=function(t){return t.code<4e3?t.code>=1002&&t.code<=1004?"backoff":null:4e3===t.code?"tls_only":t.code<4100?"refused":t.code<4200?"backoff":t.code<4300?"retry":"refused"},e.getCloseError=function(t){return 1e3!==t.code&&1001!==t.code?{type:"PusherError",data:{code:t.code,message:t.reason||t.message}}:null}},function(t,e,n){"use strict";var r=this&&this.__extends||function(t,e){function n(){this.constructor=t}for(var r in e)e.hasOwnProperty(r)&&(t[r]=e[r]);t.prototype=null===e?Object.create(e):(n.prototype=e.prototype,new n)},i=n(9),o=n(24),s=n(46),a=n(8),u=function(t){function e(e,n){t.call(this),this.id=e,this.transport=n,this.activityTimeout=n.activityTimeout,this.bindListeners()}return r(e,t),e.prototype.handlesActivityChecks=function(){return this.transport.handlesActivityChecks()},e.prototype.send=function(t){return this.transport.send(t)},e.prototype.send_event=function(t,e,n){var r={event:t,data:e};return n&&(r.channel=n),a.default.debug("Event sent",r),this.send(s.encodeMessage(r))},e.prototype.ping=function(){this.transport.supportsPing()?this.transport.ping():this.send_event("pusher:ping",{})},e.prototype.close=function(){this.transport.close()},e.prototype.bindListeners=function(){var t=this,e={message:function(e){var n;try{n=s.decodeMessage(e)}catch(n){t.emit("error",{type:"MessageParseError",error:n,data:e.data})}if(void 0!==n){switch(a.default.debug("Event recd",n),n.event){case"pusher:error":t.emit("error",{type:"PusherError",data:n.data});break;case"pusher:ping":t.emit("ping");break;case"pusher:pong":t.emit("pong")}t.emit("message",n)}},activity:function(){t.emit("activity")},error:function(e){t.emit("error",{type:"WebSocketError",error:e})},closed:function(e){n(),e&&e.code&&t.handleCloseEvent(e),t.transport=null,t.emit("closed")}},n=function(){i.objectApply(e,function(e,n){t.transport.unbind(n,e)})};i.objectApply(e,function(e,n){t.transport.bind(n,e)})},e.prototype.handleCloseEvent=function(t){var e=s.getCloseAction(t),n=s.getCloseError(t);n&&this.emit("error",n),e&&this.emit(e,{action:e,error:n})},e}(o.default);e.__esModule=!0,e.default=u},function(t,e,n){"use strict";var r=n(2),i=function(){function t(t,e){this.channel=t;var n=e.authTransport;if("undefined"==typeof r.default.getAuthorizers()[n])throw"'"+n+"' is not a recognized auth transport";this.type=n,this.options=e,this.authOptions=(e||{}).auth||{}}return t.prototype.composeQuery=function(t){var e="socket_id="+encodeURIComponent(t)+"&channel_name="+encodeURIComponent(this.channel.name);for(var n in this.authOptions.params)e+="&"+encodeURIComponent(n)+"="+encodeURIComponent(this.authOptions.params[n]);return e},t.prototype.authorize=function(e,n){return t.authorizers=t.authorizers||r.default.getAuthorizers(),t.authorizers[this.type].call(this,r.default,e,n)},t}();e.__esModule=!0,e.default=i},function(t,e,n){"use strict";var r=n(2),i=function(){function t(t,e){this.timeline=t,this.options=e||{}}return t.prototype.send=function(t,e){this.timeline.isEmpty()||this.timeline.send(r.default.TimelineTransport.getAgent(this,t),e)},t}();e.__esModule=!0,e.default=i},function(t,e,n){"use strict";var r=this&&this.__extends||function(t,e){function n(){this.constructor=t}for(var r in e)e.hasOwnProperty(r)&&(t[r]=e[r]);t.prototype=null===e?Object.create(e):(n.prototype=e.prototype,new n)},i=n(51),o=n(8),s=n(53),a=n(14),u=function(t){function e(e,n){t.call(this,e,n),this.members=new s.default}return r(e,t),e.prototype.authorize=function(e,n){var r=this;t.prototype.authorize.call(this,e,function(t,e){if(!t){if(void 0===e.channel_data){var i=a.default.buildLogSuffix("authenticationEndpoint");return o.default.warn("Invalid auth response for channel '"+r.name+"',expected 'channel_data' field. 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t=this;this.subscribed||(this.subscriptionPending=!0,this.subscriptionCancelled=!1,this.authorize(this.pusher.connection.socket_id,function(e,n){e?t.handleEvent("pusher:subscription_error",n):t.pusher.send_event("pusher:subscribe",{auth:n.auth,channel_data:n.channel_data,channel:t.name})}))},e.prototype.unsubscribe=function(){this.subscribed=!1,this.pusher.send_event("pusher:unsubscribe",{channel:this.name})},e.prototype.cancelSubscription=function(){this.subscriptionCancelled=!0},e.prototype.reinstateSubscription=function(){this.subscriptionCancelled=!1},e}(i.default);e.__esModule=!0,e.default=a},function(t,e,n){"use strict";var r=n(9),i=function(){function t(){this.reset()}return t.prototype.get=function(t){return Object.prototype.hasOwnProperty.call(this.members,t)?{id:t,info:this.members[t]}:null},t.prototype.each=function(t){var e=this;r.objectApply(this.members,function(n,r){t(e.get(r))})},t.prototype.setMyID=function(t){this.myID=t},t.prototype.onSubscription=function(t){this.members=t.presence.hash,this.count=t.presence.count,this.me=this.get(this.myID)},t.prototype.addMember=function(t){return null===this.get(t.user_id)&&this.count++,this.members[t.user_id]=t.user_info,this.get(t.user_id)},t.prototype.removeMember=function(t){var e=this.get(t.user_id);return e&&(delete this.members[t.user_id],this.count--),e},t.prototype.reset=function(){this.members={},this.count=0,this.myID=null,this.me=null},t}();e.__esModule=!0,e.default=i},function(t,e,n){"use strict";var r=this&&this.__extends||function(t,e){function n(){this.constructor=t}for(var r in e)e.hasOwnProperty(r)&&(t[r]=e[r]);t.prototype=null===e?Object.create(e):(n.prototype=e.prototype,new n)},i=n(51),o=n(31),s=n(8),a=n(55),u=n(57),c=function(t){function e(){t.apply(this,arguments),this.key=null}return r(e,t),e.prototype.authorize=function(e,n){var 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i,o=255&r[0]|(255&r[1])<<8|(255&r[2])<<16|(255&r[3])<<24,s=255&n[0]|(255&n[1])<<8|(255&n[2])<<16|(255&n[3])<<24,a=255&n[4]|(255&n[5])<<8|(255&n[6])<<16|(255&n[7])<<24,u=255&n[8]|(255&n[9])<<8|(255&n[10])<<16|(255&n[11])<<24,c=255&n[12]|(255&n[13])<<8|(255&n[14])<<16|(255&n[15])<<24,h=255&r[4]|(255&r[5])<<8|(255&r[6])<<16|(255&r[7])<<24,f=255&e[0]|(255&e[1])<<8|(255&e[2])<<16|(255&e[3])<<24,l=255&e[4]|(255&e[5])<<8|(255&e[6])<<16|(255&e[7])<<24,p=255&e[8]|(255&e[9])<<8|(255&e[10])<<16|(255&e[11])<<24,d=255&e[12]|(255&e[13])<<8|(255&e[14])<<16|(255&e[15])<<24,y=255&r[8]|(255&r[9])<<8|(255&r[10])<<16|(255&r[11])<<24,g=255&n[16]|(255&n[17])<<8|(255&n[18])<<16|(255&n[19])<<24,v=255&n[20]|(255&n[21])<<8|(255&n[22])<<16|(255&n[23])<<24,b=255&n[24]|(255&n[25])<<8|(255&n[26])<<16|(255&n[27])<<24,m=255&n[28]|(255&n[29])<<8|(255&n[30])<<16|(255&n[31])<<24,w=255&r[12]|(255&r[13])<<8|(255&r[14])<<16|(255&r[15])<<24,_=o,S=s,k=a,T=u,A=c,E=h,x=f,C=l,P=p,R=d,O=y,M=g,U=v,L=b,B=m,I=w,N=0;N<20;N+=2)i=_+U|0,A^=i<<7|i>>>25,i=A+_|0,P^=i<<9|i>>>23,i=P+A|0,U^=i<<13|i>>>19,i=U+P|0,_^=i<<18|i>>>14,i=E+S|0,R^=i<<7|i>>>25,i=R+E|0,L^=i<<9|i>>>23,i=L+R|0,S^=i<<13|i>>>19,i=S+L|0,E^=i<<18|i>>>14,i=O+x|0,B^=i<<7|i>>>25,i=B+O|0,k^=i<<9|i>>>23,i=k+B|0,x^=i<<13|i>>>19,i=x+k|0,O^=i<<18|i>>>14,i=I+M|0,T^=i<<7|i>>>25,i=T+I|0,C^=i<<9|i>>>23,i=C+T|0,M^=i<<13|i>>>19,i=M+C|0,I^=i<<18|i>>>14,i=_+T|0,S^=i<<7|i>>>25,i=S+_|0,k^=i<<9|i>>>23,i=k+S|0,T^=i<<13|i>>>19,i=T+k|0,_^=i<<18|i>>>14,i=E+A|0,x^=i<<7|i>>>25,i=x+E|0,C^=i<<9|i>>>23,i=C+x|0,A^=i<<13|i>>>19,i=A+C|0,E^=i<<18|i>>>14,i=O+R|0,M^=i<<7|i>>>25,i=M+O|0,P^=i<<9|i>>>23,i=P+M|0,R^=i<<13|i>>>19,i=R+P|0,O^=i<<18|i>>>14,i=I+B|0,U^=i<<7|i>>>25,i=U+I|0,L^=i<<9|i>>>23,i=L+U|0,B^=i<<13|i>>>19,i=B+L|0,I^=i<<18|i>>>14;t[0]=_>>>0&255,t[1]=_>>>8&255,t[2]=_>>>16&255,t[3]=_>>>24&255,t[4]=E>>>0&255,t[5]=E>>>8&255,t[6]=E>>>16&255,t[7]=E>>>24&255,t[8]=O>>>0&255,t[9]=O>>>8&255,t[10]=O>>>16&255,t[11]=O>>>24&255,t[12]=I>>>0&255,t[13]=I>>>8&255,t[14]=I>>>16&255,t[15]=I>>>24&255,t[16]=x>>>0&255,t[17]=x>>>8&255,t[18]=x>>>16&255,t[19]=x>>>24&255,t[20]=C>>>0&255,t[21]=C>>>8&255,t[22]=C>>>16&255,t[23]=C>>>24&255,t[24]=P>>>0&255,t[25]=P>>>8&255,t[26]=P>>>16&255,t[27]=P>>>24&255,t[28]=R>>>0&255,t[29]=R>>>8&255,t[30]=R>>>16&255,t[31]=R>>>24&255}function u(t,e,n,r){s(t,e,n,r)}function c(t,e,n,r){a(t,e,n,r)}function h(t,e,n,r,i,o,s){var a,c,h=new Uint8Array(16),f=new Uint8Array(64);for(c=0;c<16;c++)h[c]=0;for(c=0;c<8;c++)h[c]=o[c];for(;i>=64;){for(u(f,h,s,lt),c=0;c<64;c++)t[e+c]=n[r+c]^f[c];for(a=1,c=8;c<16;c++)a=a+(255&h[c])|0,h[c]=255&a,a>>>=8;i-=64,e+=64,r+=64}if(i>0)for(u(f,h,s,lt),c=0;c<i;c++)t[e+c]=n[r+c]^f[c];return 0}function f(t,e,n,r,i){var o,s,a=new Uint8Array(16),c=new Uint8Array(64);for(s=0;s<16;s++)a[s]=0;for(s=0;s<8;s++)a[s]=r[s];for(;n>=64;){for(u(c,a,i,lt),s=0;s<64;s++)t[e+s]=c[s];for(o=1,s=8;s<16;s++)o=o+(255&a[s])|0,a[s]=255&o,o>>>=8;n-=64,e+=64}if(n>0)for(u(c,a,i,lt),s=0;s<n;s++)t[e+s]=c[s];return 0}function l(t,e,n,r,i){var o=new Uint8Array(32);c(o,r,i,lt);for(var s=new Uint8Array(8),a=0;a<8;a++)s[a]=r[a+16];return f(t,e,n,s,o)}function p(t,e,n,r,i,o,s){var a=new Uint8Array(32);c(a,o,s,lt);for(var u=new Uint8Array(8),f=0;f<8;f++)u[f]=o[f+16];return h(t,e,n,r,i,u,a)}function d(t,e,n,r,i,o){var s=new pt(o);return 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Uint8Array(32);return _(n,t),_(r,e),o(n,0,r,0)}function k(t){var e=new Uint8Array(32);return _(e,t),1&e[0]}function T(t,e){var n;for(n=0;n<16;n++)t[n]=e[2*n]+(e[2*n+1]<<8);t[15]&=32767}function A(t,e,n){for(var r=0;r<16;r++)t[r]=e[r]+n[r]}function E(t,e,n){for(var r=0;r<16;r++)t[r]=e[r]-n[r]}function x(t,e,n){var r,i,o=0,s=0,a=0,u=0,c=0,h=0,f=0,l=0,p=0,d=0,y=0,g=0,v=0,b=0,m=0,w=0,_=0,S=0,k=0,T=0,A=0,E=0,x=0,C=0,P=0,R=0,O=0,M=0,U=0,L=0,B=0,I=n[0],N=n[1],D=n[2],j=n[3],Y=n[4],z=n[5],H=n[6],q=n[7],F=n[8],J=n[9],X=n[10],K=n[11],G=n[12],W=n[13],V=n[14],Z=n[15];r=e[0],o+=r*I,s+=r*N,a+=r*D,u+=r*j,c+=r*Y,h+=r*z,f+=r*H,l+=r*q,p+=r*F,d+=r*J,y+=r*X,g+=r*K,v+=r*G,b+=r*W,m+=r*V,w+=r*Z,r=e[1],s+=r*I,a+=r*N,u+=r*D,c+=r*j,h+=r*Y,f+=r*z,l+=r*H,p+=r*q,d+=r*F,y+=r*J,g+=r*X,v+=r*K,b+=r*G,m+=r*W,w+=r*V,_+=r*Z,r=e[2],a+=r*I,u+=r*N,c+=r*D,h+=r*j,f+=r*Y,l+=r*z,p+=r*H,d+=r*q,y+=r*F,g+=r*J,v+=r*X,b+=r*K,m+=r*G,w+=r*W,_+=r*V,S+=r*Z,r=e[3],u+=r*I,c+=r*N,h+=r*D,f+=r*j,l+=r*Y,p+=r*z,d+=r*H,y+=r*q,g+=r*F,v+=r*J,b+=r*X,m+=r*K,w+=r*G,_+=r*W,S+=r*V,k+=r*Z,r=e[4],c+=r*I,h+=r*N,f+=r*D,l+=r*j,p+=r*Y,d+=r*z,y+=r*H,g+=r*q,v+=r*F,b+=r*J,m+=r*X,w+=r*K,_+=r*G,S+=r*W,k+=r*V,T+=r*Z,r=e[5],h+=r*I,f+=r*N,l+=r*D,p+=r*j,d+=r*Y,y+=r*z,g+=r*H,v+=r*q,b+=r*F,m+=r*J,w+=r*X,_+=r*K,S+=r*G,k+=r*W,T+=r*V,A+=r*Z,r=e[6],f+=r*I,l+=r*N,p+=r*D,d+=r*j,y+=r*Y,g+=r*z,v+=r*H,b+=r*q,m+=r*F,w+=r*J,_+=r*X,S+=r*K,k+=r*G,T+=r*W,A+=r*V,E+=r*Z,r=e[7],l+=r*I,p+=r*N,d+=r*D,y+=r*j,g+=r*Y,v+=r*z,b+=r*H,m+=r*q,w+=r*F,_+=r*J,S+=r*X,k+=r*K,T+=r*G,A+=r*W,E+=r*V,x+=r*Z,r=e[8],p+=r*I,d+=r*N,y+=r*D,g+=r*j,v+=r*Y,b+=r*z,m+=r*H,w+=r*q,_+=r*F,S+=r*J,k+=r*X,T+=r*K,A+=r*G,E+=r*W,x+=r*V,C+=r*Z,r=e[9],d+=r*I,y+=r*N,g+=r*D,v+=r*j,b+=r*Y,m+=r*z,w+=r*H,_+=r*q,S+=r*F,k+=r*J,T+=r*X,A+=r*K,E+=r*G,x+=r*W,C+=r*V,P+=r*Z,r=e[10],y+=r*I,g+=r*N,v+=r*D,b+=r*j,m+=r*Y,w+=r*z,_+=r*H,S+=r*q,k+=r*F,T+=r*J,A+=r*X,E+=r*K,x+=r*G,C+=r*W,P+=r*V,R+=r*Z,r=e[11],g+=r*I,v+=r*N,b+=r*D,m+=r*j,w+=r*Y,_+=r*z,S+=r*H,k+=r*q,T+=r*F,A+=r*J,E+=r*X,x+=r*K;C+=r*G;P+=r*W,R+=r*V,O+=r*Z,r=e[12],v+=r*I,b+=r*N,m+=r*D,w+=r*j,_+=r*Y,S+=r*z,k+=r*H,T+=r*q,A+=r*F,E+=r*J,x+=r*X,C+=r*K,P+=r*G,R+=r*W,O+=r*V,M+=r*Z,r=e[13],b+=r*I,m+=r*N,w+=r*D,_+=r*j,S+=r*Y,k+=r*z,T+=r*H,A+=r*q,E+=r*F,x+=r*J,C+=r*X,P+=r*K,R+=r*G,O+=r*W,M+=r*V,U+=r*Z,r=e[14],m+=r*I,w+=r*N,_+=r*D,S+=r*j,k+=r*Y,T+=r*z,A+=r*H,E+=r*q,x+=r*F,C+=r*J,P+=r*X,R+=r*K,O+=r*G,M+=r*W,U+=r*V,L+=r*Z,r=e[15],w+=r*I,_+=r*N,S+=r*D,k+=r*j,T+=r*Y,A+=r*z,E+=r*H,x+=r*q,C+=r*F,P+=r*J,R+=r*X,O+=r*K,M+=r*G,U+=r*W,L+=r*V,B+=r*Z,o+=38*_,s+=38*S,a+=38*k,u+=38*T,c+=38*A,h+=38*E,f+=38*x,l+=38*C,p+=38*P,d+=38*R,y+=38*O,g+=38*M,v+=38*U,b+=38*L,m+=38*B,i=1,r=o+i+65535,i=Math.floor(r/65536),o=r-65536*i,r=s+i+65535,i=Math.floor(r/65536),s=r-65536*i,r=a+i+65535,i=Math.floor(r/65536),a=r-65536*i,r=u+i+65535,i=Math.floor(r/65536),u=r-65536*i,r=c+i+65535,i=Math.floor(r/65536),c=r-65536*i,r=h+i+65535,i=Math.floor(r/65536),h=r-65536*i,r=f+i+65535,i=Math.floor(r/65536),f=r-65536*i,
-r=l+i+65535,i=Math.floor(r/65536),l=r-65536*i,r=p+i+65535,i=Math.floor(r/65536),p=r-65536*i,r=d+i+65535,i=Math.floor(r/65536),d=r-65536*i,r=y+i+65535,i=Math.floor(r/65536),y=r-65536*i,r=g+i+65535,i=Math.floor(r/65536),g=r-65536*i,r=v+i+65535,i=Math.floor(r/65536),v=r-65536*i,r=b+i+65535,i=Math.floor(r/65536),b=r-65536*i,r=m+i+65535,i=Math.floor(r/65536),m=r-65536*i,r=w+i+65535,i=Math.floor(r/65536),w=r-65536*i,o+=i-1+37*(i-1),i=1,r=o+i+65535,i=Math.floor(r/65536),o=r-65536*i,r=s+i+65535,i=Math.floor(r/65536),s=r-65536*i,r=a+i+65535,i=Math.floor(r/65536),a=r-65536*i,r=u+i+65535,i=Math.floor(r/65536),u=r-65536*i,r=c+i+65535,i=Math.floor(r/65536),c=r-65536*i,r=h+i+65535,i=Math.floor(r/65536),h=r-65536*i,r=f+i+65535,i=Math.floor(r/65536),f=r-65536*i,r=l+i+65535,i=Math.floor(r/65536),l=r-65536*i,r=p+i+65535,i=Math.floor(r/65536),p=r-65536*i,r=d+i+65535,i=Math.floor(r/65536),d=r-65536*i,r=y+i+65535,i=Math.floor(r/65536),y=r-65536*i,r=g+i+65535,i=Math.floor(r/65536),g=r-65536*i,r=v+i+65535,i=Math.floor(r/65536),v=r-65536*i,r=b+i+65535,i=Math.floor(r/65536),b=r-65536*i,r=m+i+65535,i=Math.floor(r/65536),m=r-65536*i,r=w+i+65535,i=Math.floor(r/65536),w=r-65536*i,o+=i-1+37*(i-1),t[0]=o,t[1]=s,t[2]=a,t[3]=u,t[4]=c,t[5]=h,t[6]=f,t[7]=l,t[8]=p,t[9]=d,t[10]=y,t[11]=g,t[12]=v,t[13]=b;t[14]=m;t[15]=w}function C(t,e){x(t,e,e)}function P(t,e){var n,r=tt();for(n=0;n<16;n++)r[n]=e[n];for(n=253;n>=0;n--)C(r,r),2!==n&&4!==n&&x(r,r,e);for(n=0;n<16;n++)t[n]=r[n]}function R(t,e){var n,r=tt();for(n=0;n<16;n++)r[n]=e[n];for(n=250;n>=0;n--)C(r,r),1!==n&&x(r,r,e);for(n=0;n<16;n++)t[n]=r[n]}function O(t,e,n){var r,i,o=new Uint8Array(32),s=new Float64Array(80),a=tt(),u=tt(),c=tt(),h=tt(),f=tt(),l=tt();for(i=0;i<31;i++)o[i]=e[i];for(o[31]=127&e[31]|64,o[0]&=248,T(s,n),i=0;i<16;i++)u[i]=s[i],h[i]=a[i]=c[i]=0;for(a[0]=h[0]=1,i=254;i>=0;--i)r=o[i>>>3]>>>(7&i)&1,w(a,u,r),w(c,h,r),A(f,a,c),E(a,a,c),A(c,u,h),E(u,u,h),C(h,f),C(l,a),x(a,c,a),x(c,u,f),A(f,a,c),E(a,a,c),C(u,a),E(c,h,l),x(a,c,st),A(a,a,h),x(c,c,a),x(a,h,l),x(h,u,s),C(u,f),w(a,u,r),w(c,h,r);for(i=0;i<16;i++)s[i+16]=a[i],s[i+32]=c[i],s[i+48]=u[i],s[i+64]=h[i];var p=s.subarray(32),d=s.subarray(16);return P(p,p),x(d,d,p),_(t,d),0}function M(t,e){return O(t,e,rt)}function U(t,e){return et(e,32),M(t,e)}function L(t,e,n){var r=new Uint8Array(32);return O(r,n,e),c(t,nt,r,lt)}function B(t,e,n,r,i,o){var s=new Uint8Array(32);return L(s,i,o),dt(t,e,n,r,s)}function I(t,e,n,r,i,o){var s=new Uint8Array(32);return L(s,i,o),yt(t,e,n,r,s)}function N(t,e,n,r){for(var i,o,s,a,u,c,h,f,l,p,d,y,g,v,b,m,w,_,S,k,T,A,E,x,C,P,R=new Int32Array(16),O=new Int32Array(16),M=t[0],U=t[1],L=t[2],B=t[3],I=t[4],N=t[5],D=t[6],j=t[7],Y=e[0],z=e[1],H=e[2],q=e[3],F=e[4],J=e[5],X=e[6],K=e[7],G=0;r>=128;){for(S=0;S<16;S++)k=8*S+G,R[S]=n[k+0]<<24|n[k+1]<<16|n[k+2]<<8|n[k+3],O[S]=n[k+4]<<24|n[k+5]<<16|n[k+6]<<8|n[k+7];for(S=0;S<80;S++)if(i=M,o=U,s=L,a=B,u=I,c=N,h=D,f=j,l=Y,p=z,d=H,y=q,g=F,v=J,b=X,m=K,T=j,A=K,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=(I>>>14|F<<18)^(I>>>18|F<<14)^(F>>>9|I<<23),A=(F>>>14|I<<18)^(F>>>18|I<<14)^(I>>>9|F<<23),E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,T=I&N^~I&D,A=F&J^~F&X,E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,T=gt[2*S],A=gt[2*S+1],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,T=R[S%16],A=O[S%16],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,w=65535&C|P<<16,_=65535&E|x<<16,T=w,A=_,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=(M>>>28|Y<<4)^(Y>>>2|M<<30)^(Y>>>7|M<<25),A=(Y>>>28|M<<4)^(M>>>2|Y<<30)^(M>>>7|Y<<25),E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,T=M&U^M&L^U&L,A=Y&z^Y&H^z&H,E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,f=65535&C|P<<16,m=65535&E|x<<16,T=a,A=y,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=w,A=_,E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,a=65535&C|P<<16,y=65535&E|x<<16,U=i,L=o,B=s,I=a,N=u,D=c,j=h,M=f,z=l,H=p,q=d,F=y,J=g,X=v,K=b,Y=m,S%16===15)for(k=0;k<16;k++)T=R[k],A=O[k],E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=R[(k+9)%16],A=O[(k+9)%16],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,w=R[(k+1)%16],_=O[(k+1)%16],T=(w>>>1|_<<31)^(w>>>8|_<<24)^w>>>7,A=(_>>>1|w<<31)^(_>>>8|w<<24)^(_>>>7|w<<25),E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,w=R[(k+14)%16],_=O[(k+14)%16],T=(w>>>19|_<<13)^(_>>>29|w<<3)^w>>>6,A=(_>>>19|w<<13)^(w>>>29|_<<3)^(_>>>6|w<<26),E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,R[k]=65535&C|P<<16,O[k]=65535&E|x<<16;T=M,A=Y,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=t[0],A=e[0],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,t[0]=M=65535&C|P<<16,e[0]=Y=65535&E|x<<16,T=U,A=z,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=t[1],A=e[1],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,t[1]=U=65535&C|P<<16,e[1]=z=65535&E|x<<16,T=L,A=H,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=t[2],A=e[2],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,t[2]=L=65535&C|P<<16,e[2]=H=65535&E|x<<16,T=B,A=q,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=t[3],A=e[3],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,t[3]=B=65535&C|P<<16,e[3]=q=65535&E|x<<16,T=I,A=F,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=t[4],A=e[4],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,t[4]=I=65535&C|P<<16,e[4]=F=65535&E|x<<16,T=N,A=J,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=t[5],A=e[5],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,t[5]=N=65535&C|P<<16,e[5]=J=65535&E|x<<16,T=D,A=X,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=t[6],A=e[6],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,t[6]=D=65535&C|P<<16,e[6]=X=65535&E|x<<16,T=j,A=K,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=t[7],A=e[7],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,t[7]=j=65535&C|P<<16,e[7]=K=65535&E|x<<16,G+=128,r-=128}return r}function D(t,n,r){var i,o=new Int32Array(8),s=new Int32Array(8),a=new Uint8Array(256),u=r;for(o[0]=1779033703,o[1]=3144134277,o[2]=1013904242,o[3]=2773480762,o[4]=1359893119,o[5]=2600822924,o[6]=528734635,o[7]=1541459225,s[0]=4089235720,s[1]=2227873595,s[2]=4271175723,s[3]=1595750129,s[4]=2917565137,s[5]=725511199,s[6]=4215389547,s[7]=327033209,N(o,s,n,r),r%=128,i=0;i<r;i++)a[i]=n[u-r+i];for(a[r]=128,r=256-128*(r<112?1:0),a[r-9]=0,e(a,r-8,u/536870912|0,u<<3),N(o,s,a,r),i=0;i<8;i++)e(t,8*i,o[i],s[i]);return 0}function j(t,e){var n=tt(),r=tt(),i=tt(),o=tt(),s=tt(),a=tt(),u=tt(),c=tt(),h=tt();E(n,t[1],t[0]),E(h,e[1],e[0]),x(n,n,h),A(r,t[0],t[1]),A(h,e[0],e[1]),x(r,r,h),x(i,t[3],e[3]),x(i,i,ut),x(o,t[2],e[2]),A(o,o,o),E(s,r,n),E(a,o,i),A(u,o,i),A(c,r,n),x(t[0],s,a),x(t[1],c,u),x(t[2],u,a),x(t[3],s,c)}function Y(t,e,n){var r;for(r=0;r<4;r++)w(t[r],e[r],n)}function z(t,e){var n=tt(),r=tt(),i=tt();P(i,e[2]),x(n,e[0],i),x(r,e[1],i),_(t,r),t[31]^=k(n)<<7}function H(t,e,n){var r,i;for(b(t[0],it),b(t[1],ot),b(t[2],ot),b(t[3],it),i=255;i>=0;--i)r=n[i/8|0]>>(7&i)&1,Y(t,e,r),j(e,t),j(t,t),Y(t,e,r)}function q(t,e){var n=[tt(),tt(),tt(),tt()];b(n[0],ct),b(n[1],ht),b(n[2],ot),x(n[3],ct,ht),H(t,n,e)}function F(t,e,n){var r,i=new Uint8Array(64),o=[tt(),tt(),tt(),tt()];for(n||et(e,32),D(i,e,32),i[0]&=248,i[31]&=127,i[31]|=64,q(o,i),z(t,o),r=0;r<32;r++)e[r+32]=t[r];return 0}function J(t,e){var n,r,i,o;for(r=63;r>=32;--r){for(n=0,i=r-32,o=r-12;i<o;++i)e[i]+=n-16*e[r]*vt[i-(r-32)],n=e[i]+128>>8,e[i]-=256*n;e[i]+=n,e[r]=0}for(n=0,i=0;i<32;i++)e[i]+=n-(e[31]>>4)*vt[i],n=e[i]>>8,e[i]&=255;for(i=0;i<32;i++)e[i]-=n*vt[i];for(r=0;r<32;r++)e[r+1]+=e[r]>>8,t[r]=255&e[r]}function X(t){var e,n=new Float64Array(64);for(e=0;e<64;e++)n[e]=t[e];for(e=0;e<64;e++)t[e]=0;J(t,n)}function K(t,e,n,r){var i,o,s=new Uint8Array(64),a=new Uint8Array(64),u=new Uint8Array(64),c=new Float64Array(64),h=[tt(),tt(),tt(),tt()];D(s,r,32),s[0]&=248,s[31]&=127,s[31]|=64;var f=n+64;for(i=0;i<n;i++)t[64+i]=e[i];for(i=0;i<32;i++)t[32+i]=s[32+i];for(D(u,t.subarray(32),n+32),X(u),q(h,u),z(t,h),i=32;i<64;i++)t[i]=r[i];for(D(a,t,n+64),X(a),i=0;i<64;i++)c[i]=0;for(i=0;i<32;i++)c[i]=u[i];for(i=0;i<32;i++)for(o=0;o<32;o++)c[i+o]+=a[i]*s[o];return J(t.subarray(32),c),f}function G(t,e){var n=tt(),r=tt(),i=tt(),o=tt(),s=tt(),a=tt(),u=tt();return b(t[2],ot),T(t[1],e),C(i,t[1]),x(o,i,at),E(i,i,t[2]),A(o,t[2],o),C(s,o),C(a,s),x(u,a,s),x(n,u,i),x(n,n,o),R(n,n),x(n,n,i),x(n,n,o),x(n,n,o),x(t[0],n,o),C(r,t[0]),x(r,r,o),S(r,i)&&x(t[0],t[0],ft),C(r,t[0]),x(r,r,o),S(r,i)?-1:(k(t[0])===e[31]>>7&&E(t[0],it,t[0]),x(t[3],t[0],t[1]),0)}function W(t,e,n,r){var i,s,a=new Uint8Array(32),u=new Uint8Array(64),c=[tt(),tt(),tt(),tt()],h=[tt(),tt(),tt(),tt()];if(s=-1,n<64)return-1;if(G(h,r))return-1;for(i=0;i<n;i++)t[i]=e[i];for(i=0;i<32;i++)t[i+32]=r[i];if(D(u,t,n),X(u),H(c,h,u),q(h,e.subarray(32)),j(c,h),z(a,c),n-=64,o(e,0,a,0)){for(i=0;i<n;i++)t[i]=0;return-1}for(i=0;i<n;i++)t[i]=e[i+64];return s=n}function V(t,e){if(t.length!==bt)throw new Error("bad key size");if(e.length!==mt)throw new Error("bad nonce size")}function Z(t,e){if(t.length!==Tt)throw new Error("bad public key size");if(e.length!==At)throw new Error("bad secret key size")}function Q(){for(var t=0;t<arguments.length;t++)if(!(arguments[t]instanceof Uint8Array))throw new TypeError("unexpected type, use Uint8Array")}function $(t){for(var e=0;e<t.length;e++)t[e]=0}var tt=function(t){var e,n=new Float64Array(16);if(t)for(e=0;e<t.length;e++)n[e]=t[e];return n},et=function(){throw new Error("no PRNG")},nt=new Uint8Array(16),rt=new Uint8Array(32);rt[0]=9;var it=tt(),ot=tt([1]),st=tt([56129,1]),at=tt([30883,4953,19914,30187,55467,16705,2637,112,59544,30585,16505,36039,65139,11119,27886,20995]),ut=tt([61785,9906,39828,60374,45398,33411,5274,224,53552,61171,33010,6542,64743,22239,55772,9222]),ct=tt([54554,36645,11616,51542,42930,38181,51040,26924,56412,64982,57905,49316,21502,52590,14035,8553]),ht=tt([26200,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214]),ft=tt([41136,18958,6951,50414,58488,44335,6150,12099,55207,15867,153,11085,57099,20417,9344,11139]),lt=new Uint8Array([101,120,112,97,110,100,32,51,50,45,98,121,116,101,32,107]),pt=function(t){this.buffer=new Uint8Array(16),this.r=new Uint16Array(10),this.h=new Uint16Array(10),this.pad=new Uint16Array(8),this.leftover=0,this.fin=0;var e,n,r,i,o,s,a,u;e=255&t[0]|(255&t[1])<<8,this.r[0]=8191&e,n=255&t[2]|(255&t[3])<<8,this.r[1]=8191&(e>>>13|n<<3),r=255&t[4]|(255&t[5])<<8,this.r[2]=7939&(n>>>10|r<<6),i=255&t[6]|(255&t[7])<<8,this.r[3]=8191&(r>>>7|i<<9),o=255&t[8]|(255&t[9])<<8,this.r[4]=255&(i>>>4|o<<12),this.r[5]=o>>>1&8190,s=255&t[10]|(255&t[11])<<8,this.r[6]=8191&(o>>>14|s<<2),a=255&t[12]|(255&t[13])<<8,this.r[7]=8065&(s>>>11|a<<5),u=255&t[14]|(255&t[15])<<8,this.r[8]=8191&(a>>>8|u<<8),this.r[9]=u>>>5&127,this.pad[0]=255&t[16]|(255&t[17])<<8,this.pad[1]=255&t[18]|(255&t[19])<<8,this.pad[2]=255&t[20]|(255&t[21])<<8,this.pad[3]=255&t[22]|(255&t[23])<<8,this.pad[4]=255&t[24]|(255&t[25])<<8,this.pad[5]=255&t[26]|(255&t[27])<<8,this.pad[6]=255&t[28]|(255&t[29])<<8,this.pad[7]=255&t[30]|(255&t[31])<<8};pt.prototype.blocks=function(t,e,n){for(var r,i,o,s,a,u,c,h,f,l,p,d,y,g,v,b,m,w,_,S=this.fin?0:2048,k=this.h[0],T=this.h[1],A=this.h[2],E=this.h[3],x=this.h[4],C=this.h[5],P=this.h[6],R=this.h[7],O=this.h[8],M=this.h[9],U=this.r[0],L=this.r[1],B=this.r[2],I=this.r[3],N=this.r[4],D=this.r[5],j=this.r[6],Y=this.r[7],z=this.r[8],H=this.r[9];n>=16;)r=255&t[e+0]|(255&t[e+1])<<8,k+=8191&r,i=255&t[e+2]|(255&t[e+3])<<8,T+=8191&(r>>>13|i<<3),o=255&t[e+4]|(255&t[e+5])<<8,A+=8191&(i>>>10|o<<6),s=255&t[e+6]|(255&t[e+7])<<8,E+=8191&(o>>>7|s<<9),a=255&t[e+8]|(255&t[e+9])<<8,x+=8191&(s>>>4|a<<12),C+=a>>>1&8191,u=255&t[e+10]|(255&t[e+11])<<8,P+=8191&(a>>>14|u<<2),c=255&t[e+12]|(255&t[e+13])<<8,R+=8191&(u>>>11|c<<5),h=255&t[e+14]|(255&t[e+15])<<8,O+=8191&(c>>>8|h<<8),M+=h>>>5|S,f=0,l=f,l+=k*U,l+=T*(5*H),l+=A*(5*z),l+=E*(5*Y),l+=x*(5*j),f=l>>>13,l&=8191,l+=C*(5*D),l+=P*(5*N),l+=R*(5*I),l+=O*(5*B),l+=M*(5*L),f+=l>>>13,l&=8191,p=f,p+=k*L,p+=T*U,p+=A*(5*H),p+=E*(5*z),p+=x*(5*Y),f=p>>>13,p&=8191,p+=C*(5*j),p+=P*(5*D),p+=R*(5*N),p+=O*(5*I),p+=M*(5*B),f+=p>>>13,p&=8191,d=f,d+=k*B,d+=T*L,d+=A*U,d+=E*(5*H),d+=x*(5*z),f=d>>>13,d&=8191,d+=C*(5*Y),d+=P*(5*j),d+=R*(5*D),d+=O*(5*N),d+=M*(5*I),f+=d>>>13,d&=8191,y=f,y+=k*I,y+=T*B,y+=A*L,y+=E*U,y+=x*(5*H),f=y>>>13,y&=8191,y+=C*(5*z),y+=P*(5*Y),y+=R*(5*j),y+=O*(5*D),y+=M*(5*N),f+=y>>>13,y&=8191,g=f,g+=k*N,g+=T*I,g+=A*B,g+=E*L,g+=x*U,f=g>>>13,g&=8191,g+=C*(5*H),g+=P*(5*z),g+=R*(5*Y),g+=O*(5*j),g+=M*(5*D),f+=g>>>13,g&=8191,v=f,v+=k*D,v+=T*N,v+=A*I,v+=E*B,v+=x*L,f=v>>>13,v&=8191,v+=C*U,v+=P*(5*H),v+=R*(5*z),v+=O*(5*Y),v+=M*(5*j),f+=v>>>13,v&=8191,b=f,b+=k*j,b+=T*D,b+=A*N,b+=E*I,b+=x*B,f=b>>>13,b&=8191,b+=C*L,b+=P*U,b+=R*(5*H),b+=O*(5*z),b+=M*(5*Y),f+=b>>>13,b&=8191,m=f,m+=k*Y,m+=T*j,m+=A*D,m+=E*N,m+=x*I,f=m>>>13,m&=8191,m+=C*B,m+=P*L,m+=R*U,m+=O*(5*H),m+=M*(5*z),f+=m>>>13,m&=8191,w=f,w+=k*z,w+=T*Y,w+=A*j,w+=E*D,w+=x*N,f=w>>>13,w&=8191,w+=C*I,w+=P*B,w+=R*L,w+=O*U,w+=M*(5*H),f+=w>>>13,w&=8191,_=f,_+=k*H,_+=T*z,_+=A*Y,_+=E*j,_+=x*D,f=_>>>13,_&=8191,_+=C*N,_+=P*I,_+=R*B,_+=O*L,_+=M*U,f+=_>>>13,_&=8191,f=(f<<2)+f|0,f=f+l|0,l=8191&f,f>>>=13,p+=f,k=l,T=p,A=d,E=y,x=g,C=v,P=b,R=m,O=w,M=_,e+=16,n-=16;this.h[0]=k,this.h[1]=T,this.h[2]=A,this.h[3]=E,this.h[4]=x,this.h[5]=C,this.h[6]=P,this.h[7]=R,this.h[8]=O,this.h[9]=M},pt.prototype.finish=function(t,e){var n,r,i,o,s=new Uint16Array(10);if(this.leftover){for(o=this.leftover,this.buffer[o++]=1;o<16;o++)this.buffer[o]=0;this.fin=1,this.blocks(this.buffer,0,16)}for(n=this.h[1]>>>13,this.h[1]&=8191,o=2;o<10;o++)this.h[o]+=n,n=this.h[o]>>>13,this.h[o]&=8191;for(this.h[0]+=5*n,n=this.h[0]>>>13,this.h[0]&=8191,this.h[1]+=n,n=this.h[1]>>>13,this.h[1]&=8191,this.h[2]+=n,s[0]=this.h[0]+5,n=s[0]>>>13,s[0]&=8191,o=1;o<10;o++)s[o]=this.h[o]+n,n=s[o]>>>13,s[o]&=8191;for(s[9]-=8192,r=(1^n)-1,o=0;o<10;o++)s[o]&=r;for(r=~r,o=0;o<10;o++)this.h[o]=this.h[o]&r|s[o];for(this.h[0]=65535&(this.h[0]|this.h[1]<<13),this.h[1]=65535&(this.h[1]>>>3|this.h[2]<<10),this.h[2]=65535&(this.h[2]>>>6|this.h[3]<<7),this.h[3]=65535&(this.h[3]>>>9|this.h[4]<<4),this.h[4]=65535&(this.h[4]>>>12|this.h[5]<<1|this.h[6]<<14),this.h[5]=65535&(this.h[6]>>>2|this.h[7]<<11),this.h[6]=65535&(this.h[7]>>>5|this.h[8]<<8),this.h[7]=65535&(this.h[8]>>>8|this.h[9]<<5),i=this.h[0]+this.pad[0],this.h[0]=65535&i,o=1;o<8;o++)i=(this.h[o]+this.pad[o]|0)+(i>>>16)|0,this.h[o]=65535&i;t[e+0]=this.h[0]>>>0&255,t[e+1]=this.h[0]>>>8&255,t[e+2]=this.h[1]>>>0&255,t[e+3]=this.h[1]>>>8&255,t[e+4]=this.h[2]>>>0&255,t[e+5]=this.h[2]>>>8&255,t[e+6]=this.h[3]>>>0&255,t[e+7]=this.h[3]>>>8&255,t[e+8]=this.h[4]>>>0&255,t[e+9]=this.h[4]>>>8&255,t[e+10]=this.h[5]>>>0&255,t[e+11]=this.h[5]>>>8&255,t[e+12]=this.h[6]>>>0&255,t[e+13]=this.h[6]>>>8&255,t[e+14]=this.h[7]>>>0&255,t[e+15]=this.h[7]>>>8&255},pt.prototype.update=function(t,e,n){var r,i;if(this.leftover){for(i=16-this.leftover,i>n&&(i=n),r=0;r<i;r++)this.buffer[this.leftover+r]=t[e+r];if(n-=i,e+=i,this.leftover+=i,this.leftover<16)return;this.blocks(this.buffer,0,16),this.leftover=0}if(n>=16&&(i=n-n%16,this.blocks(t,e,i),e+=i,n-=i),n){for(r=0;r<n;r++)this.buffer[this.leftover+r]=t[e+r];this.leftover+=n}};var dt=g,yt=v,gt=[1116352408,3609767458,1899447441,602891725,3049323471,3964484399,3921009573,2173295548,961987163,4081628472,1508970993,3053834265,2453635748,2937671579,2870763221,3664609560,3624381080,2734883394,310598401,1164996542,607225278,1323610764,1426881987,3590304994,1925078388,4068182383,2162078206,991336113,2614888103,633803317,3248222580,3479774868,3835390401,2666613458,4022224774,944711139,264347078,2341262773,604807628,2007800933,770255983,1495990901,1249150122,1856431235,1555081692,3175218132,1996064986,2198950837,2554220882,3999719339,2821834349,766784016,2952996808,2566594879,3210313671,3203337956,3336571891,1034457026,3584528711,2466948901,113926993,3758326383,338241895,168717936,666307205,1188179964,773529912,1546045734,1294757372,1522805485,1396182291,2643833823,1695183700,2343527390,1986661051,1014477480,2177026350,1206759142,2456956037,344077627,2730485921,1290863460,2820302411,3158454273,3259730800,3505952657,3345764771,106217008,3516065817,3606008344,3600352804,1432725776,4094571909,1467031594,275423344,851169720,430227734,3100823752,506948616,1363258195,659060556,3750685593,883997877,3785050280,958139571,3318307427,1322822218,3812723403,1537002063,2003034995,1747873779,3602036899,1955562222,1575990012,2024104815,1125592928,2227730452,2716904306,2361852424,442776044,2428436474,593698344,2756734187,3733110249,3204031479,2999351573,3329325298,3815920427,3391569614,3928383900,3515267271,566280711,3940187606,3454069534,4118630271,4000239992,116418474,1914138554,174292421,2731055270,289380356,3203993006,460393269,320620315,685471733,587496836,852142971,1086792851,1017036298,365543100,1126000580,2618297676,1288033470,3409855158,1501505948,4234509866,1607167915,987167468,1816402316,1246189591],vt=new Float64Array([237,211,245,92,26,99,18,88,214,156,247,162,222,249,222,20,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,16]),bt=32,mt=24,wt=32,_t=16,St=32,kt=32,Tt=32,At=32,Et=32,xt=mt,Ct=wt,Pt=_t,Rt=64,Ot=32,Mt=64,Ut=32,Lt=64;t.lowlevel={crypto_core_hsalsa20:c,crypto_stream_xor:p,crypto_stream:l,crypto_stream_salsa20_xor:h,crypto_stream_salsa20:f,crypto_onetimeauth:d,crypto_onetimeauth_verify:y,crypto_verify_16:i,crypto_verify_32:o,crypto_secretbox:g,crypto_secretbox_open:v,crypto_scalarmult:O,crypto_scalarmult_base:M,crypto_box_beforenm:L,crypto_box_afternm:dt,crypto_box:B,crypto_box_open:I,crypto_box_keypair:U,crypto_hash:D,crypto_sign:K,crypto_sign_keypair:F,crypto_sign_open:W,crypto_secretbox_KEYBYTES:bt,crypto_secretbox_NONCEBYTES:mt,crypto_secretbox_ZEROBYTES:wt,crypto_secretbox_BOXZEROBYTES:_t,crypto_scalarmult_BYTES:St,crypto_scalarmult_SCALARBYTES:kt,crypto_box_PUBLICKEYBYTES:Tt,crypto_box_SECRETKEYBYTES:At,crypto_box_BEFORENMBYTES:Et,crypto_box_NONCEBYTES:xt,crypto_box_ZEROBYTES:Ct,crypto_box_BOXZEROBYTES:Pt,crypto_sign_BYTES:Rt,crypto_sign_PUBLICKEYBYTES:Ot,crypto_sign_SECRETKEYBYTES:Mt,crypto_sign_SEEDBYTES:Ut,crypto_hash_BYTES:Lt},t.randomBytes=function(t){var e=new Uint8Array(t);return et(e,t),e},t.secretbox=function(t,e,n){Q(t,e,n),V(n,e);for(var r=new Uint8Array(wt+t.length),i=new Uint8Array(r.length),o=0;o<t.length;o++)r[o+wt]=t[o];return g(i,r,r.length,e,n),i.subarray(_t)},t.secretbox.open=function(t,e,n){Q(t,e,n),V(n,e);for(var r=new Uint8Array(_t+t.length),i=new Uint8Array(r.length),o=0;o<t.length;o++)r[o+_t]=t[o];return r.length<32?null:0!==v(i,r,r.length,e,n)?null:i.subarray(wt)},t.secretbox.keyLength=bt,t.secretbox.nonceLength=mt,t.secretbox.overheadLength=_t,t.scalarMult=function(t,e){if(Q(t,e),t.length!==kt)throw new Error("bad n size");if(e.length!==St)throw new Error("bad p size");var n=new Uint8Array(St);return O(n,t,e),n},t.scalarMult.base=function(t){if(Q(t),t.length!==kt)throw new Error("bad n size");var e=new Uint8Array(St);return M(e,t),e},t.scalarMult.scalarLength=kt,t.scalarMult.groupElementLength=St,t.box=function(e,n,r,i){var o=t.box.before(r,i);return t.secretbox(e,n,o)},t.box.before=function(t,e){Q(t,e),Z(t,e);var n=new Uint8Array(Et);return L(n,t,e),n},t.box.after=t.secretbox,t.box.open=function(e,n,r,i){var o=t.box.before(r,i);return t.secretbox.open(e,n,o)},t.box.open.after=t.secretbox.open,t.box.keyPair=function(){var t=new Uint8Array(Tt),e=new Uint8Array(At);return U(t,e),{publicKey:t,secretKey:e}},t.box.keyPair.fromSecretKey=function(t){if(Q(t),t.length!==At)throw new Error("bad secret key size");var e=new Uint8Array(Tt);return M(e,t),{publicKey:e,secretKey:new Uint8Array(t)}},t.box.publicKeyLength=Tt,t.box.secretKeyLength=At,t.box.sharedKeyLength=Et,t.box.nonceLength=xt,t.box.overheadLength=t.secretbox.overheadLength,t.sign=function(t,e){if(Q(t,e),e.length!==Mt)throw new Error("bad secret key size");var n=new Uint8Array(Rt+t.length);return K(n,t,t.length,e),n},t.sign.open=function(t,e){if(Q(t,e),e.length!==Ot)throw new Error("bad public key size");var n=new Uint8Array(t.length),r=W(n,t,t.length,e);if(r<0)return null;for(var i=new Uint8Array(r),o=0;o<i.length;o++)i[o]=n[o];return i},t.sign.detached=function(e,n){for(var r=t.sign(e,n),i=new Uint8Array(Rt),o=0;o<i.length;o++)i[o]=r[o];return i},t.sign.detached.verify=function(t,e,n){if(Q(t,e,n),e.length!==Rt)throw new Error("bad signature size");if(n.length!==Ot)throw new Error("bad public key size");var r,i=new Uint8Array(Rt+t.length),o=new Uint8Array(Rt+t.length);for(r=0;r<Rt;r++)i[r]=e[r];for(r=0;r<t.length;r++)i[r+Rt]=t[r];return W(o,i,i.length,n)>=0},t.sign.keyPair=function(){var t=new Uint8Array(Ot),e=new Uint8Array(Mt);return F(t,e),{publicKey:t,secretKey:e}},t.sign.keyPair.fromSecretKey=function(t){if(Q(t),t.length!==Mt)throw new Error("bad secret key size");for(var e=new Uint8Array(Ot),n=0;n<e.length;n++)e[n]=t[32+n];return{publicKey:e,secretKey:new Uint8Array(t)}},t.sign.keyPair.fromSeed=function(t){if(Q(t),t.length!==Ut)throw new Error("bad seed size");for(var e=new Uint8Array(Ot),n=new Uint8Array(Mt),r=0;r<32;r++)n[r]=t[r];return 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r,i,o=0,s=0,a=0,u=0,c=0,h=0,f=0,l=0,p=0,d=0,y=0,g=0,v=0,b=0,m=0,w=0,_=0,S=0,k=0,T=0,A=0,E=0,x=0,C=0,P=0,R=0,O=0,M=0,U=0,L=0,B=0,I=n[0],N=n[1],D=n[2],j=n[3],Y=n[4],z=n[5],H=n[6],q=n[7],F=n[8],J=n[9],X=n[10],K=n[11],G=n[12],W=n[13],V=n[14],Z=n[15];r=e[0],o+=r*I,s+=r*N,a+=r*D,u+=r*j,c+=r*Y,h+=r*z,f+=r*H,l+=r*q,p+=r*F,d+=r*J,y+=r*X,g+=r*K,v+=r*G,b+=r*W,m+=r*V,w+=r*Z,r=e[1],s+=r*I,a+=r*N,u+=r*D,c+=r*j,h+=r*Y,f+=r*z,l+=r*H,p+=r*q,d+=r*F,y+=r*J,g+=r*X,v+=r*K,b+=r*G,m+=r*W,w+=r*V,_+=r*Z,r=e[2],a+=r*I,u+=r*N,c+=r*D,h+=r*j,f+=r*Y,l+=r*z,p+=r*H,d+=r*q,y+=r*F,g+=r*J,v+=r*X,b+=r*K,m+=r*G,w+=r*W,_+=r*V,S+=r*Z,r=e[3],u+=r*I,c+=r*N,h+=r*D,f+=r*j,l+=r*Y,p+=r*z,d+=r*H,y+=r*q,g+=r*F,v+=r*J,b+=r*X,m+=r*K,w+=r*G,_+=r*W,S+=r*V,k+=r*Z,r=e[4],c+=r*I,h+=r*N,f+=r*D,l+=r*j,p+=r*Y,d+=r*z,y+=r*H,g+=r*q,v+=r*F,b+=r*J,m+=r*X,w+=r*K,_+=r*G,S+=r*W,k+=r*V,T+=r*Z,r=e[5],h+=r*I,f+=r*N,l+=r*D,p+=r*j,d+=r*Y,y+=r*z,g+=r*H,v+=r*q,b+=r*F,m+=r*J,w+=r*X,_+=r*K,S+=r*G,k+=r*W,T+=r*V,A+=r*Z,r=e[6],f+=r*I,l+=r*N,p+=r*D,d+=r*j,y+=r*Y,g+=r*z,v+=r*H,b+=r*q,m+=r*F,w+=r*J,_+=r*X,S+=r*K,k+=r*G,T+=r*W,A+=r*V,E+=r*Z,r=e[7],l+=r*I,p+=r*N,d+=r*D,y+=r*j,g+=r*Y,v+=r*z,b+=r*H,m+=r*q,w+=r*F,_+=r*J,S+=r*X,k+=r*K,T+=r*G,A+=r*W,E+=r*V,x+=r*Z,r=e[8],p+=r*I,d+=r*N,y+=r*D,g+=r*j,v+=r*Y,b+=r*z,m+=r*H,w+=r*q,_+=r*F,S+=r*J,k+=r*X,T+=r*K,A+=r*G,E+=r*W,x+=r*V,C+=r*Z,r=e[9],d+=r*I,y+=r*N,g+=r*D,v+=r*j,b+=r*Y,m+=r*z,w+=r*H,_+=r*q,S+=r*F,k+=r*J,T+=r*X,A+=r*K,E+=r*G,x+=r*W,C+=r*V,P+=r*Z,r=e[10],y+=r*I,g+=r*N,v+=r*D,b+=r*j,m+=r*Y,w+=r*z,_+=r*H,S+=r*q,k+=r*F,T+=r*J,A+=r*X,E+=r*K,x+=r*G,C+=r*W,P+=r*V,R+=r*Z,r=e[11],g+=r*I,v+=r*N,b+=r*D,m+=r*j,w+=r*Y,_+=r*z,S+=r*H,k+=r*q,T+=r*F,A+=r*J,E+=r*X,x+=r*K;C+=r*G;P+=r*W,R+=r*V,O+=r*Z,r=e[12],v+=r*I,b+=r*N,m+=r*D,w+=r*j,_+=r*Y,S+=r*z,k+=r*H,T+=r*q,A+=r*F,E+=r*J,x+=r*X,C+=r*K,P+=r*G,R+=r*W,O+=r*V,M+=r*Z,r=e[13],b+=r*I,m+=r*N,w+=r*D,_+=r*j,S+=r*Y,k+=r*z,
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C(t,e){x(t,e,e)}function P(t,e){var n,r=tt();for(n=0;n<16;n++)r[n]=e[n];for(n=253;n>=0;n--)C(r,r),2!==n&&4!==n&&x(r,r,e);for(n=0;n<16;n++)t[n]=r[n]}function R(t,e){var n,r=tt();for(n=0;n<16;n++)r[n]=e[n];for(n=250;n>=0;n--)C(r,r),1!==n&&x(r,r,e);for(n=0;n<16;n++)t[n]=r[n]}function O(t,e,n){var r,i,o=new Uint8Array(32),s=new Float64Array(80),a=tt(),u=tt(),c=tt(),h=tt(),f=tt(),l=tt();for(i=0;i<31;i++)o[i]=e[i];for(o[31]=127&e[31]|64,o[0]&=248,T(s,n),i=0;i<16;i++)u[i]=s[i],h[i]=a[i]=c[i]=0;for(a[0]=h[0]=1,i=254;i>=0;--i)r=o[i>>>3]>>>(7&i)&1,w(a,u,r),w(c,h,r),A(f,a,c),E(a,a,c),A(c,u,h),E(u,u,h),C(h,f),C(l,a),x(a,c,a),x(c,u,f),A(f,a,c),E(a,a,c),C(u,a),E(c,h,l),x(a,c,st),A(a,a,h),x(c,c,a),x(a,h,l),x(h,u,s),C(u,f),w(a,u,r),w(c,h,r);for(i=0;i<16;i++)s[i+16]=a[i],s[i+32]=c[i],s[i+48]=u[i],s[i+64]=h[i];var p=s.subarray(32),d=s.subarray(16);return P(p,p),x(d,d,p),_(t,d),0}function M(t,e){return O(t,e,rt)}function U(t,e){return et(e,32),M(t,e)}function L(t,e,n){var r=new Uint8Array(32);return O(r,n,e),c(t,nt,r,lt)}function B(t,e,n,r,i,o){var s=new Uint8Array(32);return L(s,i,o),dt(t,e,n,r,s)}function I(t,e,n,r,i,o){var s=new Uint8Array(32);return L(s,i,o),yt(t,e,n,r,s)}function N(t,e,n,r){for(var i,o,s,a,u,c,h,f,l,p,d,y,g,v,b,m,w,_,S,k,T,A,E,x,C,P,R=new Int32Array(16),O=new Int32Array(16),M=t[0],U=t[1],L=t[2],B=t[3],I=t[4],N=t[5],D=t[6],j=t[7],Y=e[0],z=e[1],H=e[2],q=e[3],F=e[4],J=e[5],X=e[6],K=e[7],G=0;r>=128;){for(S=0;S<16;S++)k=8*S+G,R[S]=n[k+0]<<24|n[k+1]<<16|n[k+2]<<8|n[k+3],O[S]=n[k+4]<<24|n[k+5]<<16|n[k+6]<<8|n[k+7];for(S=0;S<80;S++)if(i=M,o=U,s=L,a=B,u=I,c=N,h=D,f=j,l=Y,p=z,d=H,y=q,g=F,v=J,b=X,m=K,T=j,A=K,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=(I>>>14|F<<18)^(I>>>18|F<<14)^(F>>>9|I<<23),A=(F>>>14|I<<18)^(F>>>18|I<<14)^(I>>>9|F<<23),E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,T=I&N^~I&D,A=F&J^~F&X,E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,T=gt[2*S],A=gt[2*S+1],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,T=R[S%16],A=O[S%16],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,w=65535&C|P<<16,_=65535&E|x<<16,T=w,A=_,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=(M>>>28|Y<<4)^(Y>>>2|M<<30)^(Y>>>7|M<<25),A=(Y>>>28|M<<4)^(M>>>2|Y<<30)^(M>>>7|Y<<25),E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,T=M&U^M&L^U&L,A=Y&z^Y&H^z&H,E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,f=65535&C|P<<16,m=65535&E|x<<16,T=a,A=y,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=w,A=_,E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,a=65535&C|P<<16,y=65535&E|x<<16,U=i,L=o,B=s,I=a,N=u,D=c,j=h,M=f,z=l,H=p,q=d,F=y,J=g,X=v,K=b,Y=m,S%16===15)for(k=0;k<16;k++)T=R[k],A=O[k],E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=R[(k+9)%16],A=O[(k+9)%16],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,w=R[(k+1)%16],_=O[(k+1)%16],T=(w>>>1|_<<31)^(w>>>8|_<<24)^w>>>7,A=(_>>>1|w<<31)^(_>>>8|w<<24)^(_>>>7|w<<25),E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,w=R[(k+14)%16],_=O[(k+14)%16],T=(w>>>19|_<<13)^(_>>>29|w<<3)^w>>>6,A=(_>>>19|w<<13)^(w>>>29|_<<3)^(_>>>6|w<<26),E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,R[k]=65535&C|P<<16,O[k]=65535&E|x<<16;T=M,A=Y,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=t[0],A=e[0],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,t[0]=M=65535&C|P<<16,e[0]=Y=65535&E|x<<16,T=U,A=z,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=t[1],A=e[1],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,t[1]=U=65535&C|P<<16,e[1]=z=65535&E|x<<16,T=L,A=H,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=t[2],A=e[2],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,t[2]=L=65535&C|P<<16,e[2]=H=65535&E|x<<16,T=B,A=q,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=t[3],A=e[3],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,t[3]=B=65535&C|P<<16,e[3]=q=65535&E|x<<16,T=I,A=F,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=t[4],A=e[4],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,t[4]=I=65535&C|P<<16,e[4]=F=65535&E|x<<16,T=N,A=J,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=t[5],A=e[5],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,t[5]=N=65535&C|P<<16,e[5]=J=65535&E|x<<16,T=D,A=X,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=t[6],A=e[6],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,t[6]=D=65535&C|P<<16,e[6]=X=65535&E|x<<16,T=j,A=K,E=65535&A,x=A>>>16,C=65535&T,P=T>>>16,T=t[7],A=e[7],E+=65535&A,x+=A>>>16,C+=65535&T,P+=T>>>16,x+=E>>>16,C+=x>>>16,P+=C>>>16,t[7]=j=65535&C|P<<16,e[7]=K=65535&E|x<<16,G+=128,r-=128}return r}function D(t,n,r){var i,o=new Int32Array(8),s=new Int32Array(8),a=new Uint8Array(256),u=r;for(o[0]=1779033703,o[1]=3144134277,o[2]=1013904242,o[3]=2773480762,o[4]=1359893119,o[5]=2600822924,o[6]=528734635,o[7]=1541459225,s[0]=4089235720,s[1]=2227873595,s[2]=4271175723,s[3]=1595750129,s[4]=2917565137,s[5]=725511199,s[6]=4215389547,s[7]=327033209,N(o,s,n,r),r%=128,i=0;i<r;i++)a[i]=n[u-r+i];for(a[r]=128,r=256-128*(r<112?1:0),a[r-9]=0,e(a,r-8,u/536870912|0,u<<3),N(o,s,a,r),i=0;i<8;i++)e(t,8*i,o[i],s[i]);return 0}function j(t,e){var n=tt(),r=tt(),i=tt(),o=tt(),s=tt(),a=tt(),u=tt(),c=tt(),h=tt();E(n,t[1],t[0]),E(h,e[1],e[0]),x(n,n,h),A(r,t[0],t[1]),A(h,e[0],e[1]),x(r,r,h),x(i,t[3],e[3]),x(i,i,ut),x(o,t[2],e[2]),A(o,o,o),E(s,r,n),E(a,o,i),A(u,o,i),A(c,r,n),x(t[0],s,a),x(t[1],c,u),x(t[2],u,a),x(t[3],s,c)}function Y(t,e,n){var r;for(r=0;r<4;r++)w(t[r],e[r],n)}function z(t,e){var n=tt(),r=tt(),i=tt();P(i,e[2]),x(n,e[0],i),x(r,e[1],i),_(t,r),t[31]^=k(n)<<7}function H(t,e,n){var r,i;for(b(t[0],it),b(t[1],ot),b(t[2],ot),b(t[3],it),i=255;i>=0;--i)r=n[i/8|0]>>(7&i)&1,Y(t,e,r),j(e,t),j(t,t),Y(t,e,r)}function q(t,e){var n=[tt(),tt(),tt(),tt()];b(n[0],ct),b(n[1],ht),b(n[2],ot),x(n[3],ct,ht),H(t,n,e)}function F(t,e,n){var r,i=new Uint8Array(64),o=[tt(),tt(),tt(),tt()];for(n||et(e,32),D(i,e,32),i[0]&=248,i[31]&=127,i[31]|=64,q(o,i),z(t,o),r=0;r<32;r++)e[r+32]=t[r];return 0}function J(t,e){var n,r,i,o;for(r=63;r>=32;--r){for(n=0,i=r-32,o=r-12;i<o;++i)e[i]+=n-16*e[r]*vt[i-(r-32)],n=e[i]+128>>8,e[i]-=256*n;e[i]+=n,e[r]=0}for(n=0,i=0;i<32;i++)e[i]+=n-(e[31]>>4)*vt[i],n=e[i]>>8,e[i]&=255;for(i=0;i<32;i++)e[i]-=n*vt[i];for(r=0;r<32;r++)e[r+1]+=e[r]>>8,t[r]=255&e[r]}function X(t){var e,n=new Float64Array(64);for(e=0;e<64;e++)n[e]=t[e];for(e=0;e<64;e++)t[e]=0;J(t,n)}function K(t,e,n,r){var i,o,s=new Uint8Array(64),a=new Uint8Array(64),u=new Uint8Array(64),c=new Float64Array(64),h=[tt(),tt(),tt(),tt()];D(s,r,32),s[0]&=248,s[31]&=127,s[31]|=64;var f=n+64;for(i=0;i<n;i++)t[64+i]=e[i];for(i=0;i<32;i++)t[32+i]=s[32+i];for(D(u,t.subarray(32),n+32),X(u),q(h,u),z(t,h),i=32;i<64;i++)t[i]=r[i];for(D(a,t,n+64),X(a),i=0;i<64;i++)c[i]=0;for(i=0;i<32;i++)c[i]=u[i];for(i=0;i<32;i++)for(o=0;o<32;o++)c[i+o]+=a[i]*s[o];return J(t.subarray(32),c),f}function G(t,e){var n=tt(),r=tt(),i=tt(),o=tt(),s=tt(),a=tt(),u=tt();return b(t[2],ot),T(t[1],e),C(i,t[1]),x(o,i,at),E(i,i,t[2]),A(o,t[2],o),C(s,o),C(a,s),x(u,a,s),x(n,u,i),x(n,n,o),R(n,n),x(n,n,i),x(n,n,o),x(n,n,o),x(t[0],n,o),C(r,t[0]),x(r,r,o),S(r,i)&&x(t[0],t[0],ft),C(r,t[0]),x(r,r,o),S(r,i)?-1:(k(t[0])===e[31]>>7&&E(t[0],it,t[0]),x(t[3],t[0],t[1]),0)}function W(t,e,n,r){var i,s,a=new Uint8Array(32),u=new Uint8Array(64),c=[tt(),tt(),tt(),tt()],h=[tt(),tt(),tt(),tt()];if(s=-1,n<64)return-1;if(G(h,r))return-1;for(i=0;i<n;i++)t[i]=e[i];for(i=0;i<32;i++)t[i+32]=r[i];if(D(u,t,n),X(u),H(c,h,u),q(h,e.subarray(32)),j(c,h),z(a,c),n-=64,o(e,0,a,0)){for(i=0;i<n;i++)t[i]=0;return-1}for(i=0;i<n;i++)t[i]=e[i+64];return s=n}function V(t,e){if(t.length!==bt)throw new Error("bad key size");if(e.length!==mt)throw new Error("bad nonce size")}function Z(t,e){if(t.length!==Tt)throw new Error("bad public key size");if(e.length!==At)throw new Error("bad secret key size")}function Q(){for(var t=0;t<arguments.length;t++)if(!(arguments[t]instanceof Uint8Array))throw new TypeError("unexpected type, use Uint8Array")}function $(t){for(var e=0;e<t.length;e++)t[e]=0}var tt=function(t){var e,n=new Float64Array(16);if(t)for(e=0;e<t.length;e++)n[e]=t[e];return n},et=function(){throw new Error("no PRNG")},nt=new Uint8Array(16),rt=new Uint8Array(32);rt[0]=9;var it=tt(),ot=tt([1]),st=tt([56129,1]),at=tt([30883,4953,19914,30187,55467,16705,2637,112,59544,30585,16505,36039,65139,11119,27886,20995]),ut=tt([61785,9906,39828,60374,45398,33411,5274,224,53552,61171,33010,6542,64743,22239,55772,9222]),ct=tt([54554,36645,11616,51542,42930,38181,51040,26924,56412,64982,57905,49316,21502,52590,14035,8553]),ht=tt([26200,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214]),ft=tt([41136,18958,6951,50414,58488,44335,6150,12099,55207,15867,153,11085,57099,20417,9344,11139]),lt=new Uint8Array([101,120,112,97,110,100,32,51,50,45,98,121,116,101,32,107]),pt=function(t){this.buffer=new Uint8Array(16),this.r=new Uint16Array(10),this.h=new Uint16Array(10),this.pad=new Uint16Array(8),this.leftover=0,this.fin=0;var e,n,r,i,o,s,a,u;e=255&t[0]|(255&t[1])<<8,this.r[0]=8191&e,n=255&t[2]|(255&t[3])<<8,this.r[1]=8191&(e>>>13|n<<3),r=255&t[4]|(255&t[5])<<8,this.r[2]=7939&(n>>>10|r<<6),i=255&t[6]|(255&t[7])<<8,this.r[3]=8191&(r>>>7|i<<9),o=255&t[8]|(255&t[9])<<8,this.r[4]=255&(i>>>4|o<<12),this.r[5]=o>>>1&8190,s=255&t[10]|(255&t[11])<<8,this.r[6]=8191&(o>>>14|s<<2),a=255&t[12]|(255&t[13])<<8,this.r[7]=8065&(s>>>11|a<<5),u=255&t[14]|(255&t[15])<<8,this.r[8]=8191&(a>>>8|u<<8),this.r[9]=u>>>5&127,this.pad[0]=255&t[16]|(255&t[17])<<8,this.pad[1]=255&t[18]|(255&t[19])<<8,this.pad[2]=255&t[20]|(255&t[21])<<8,this.pad[3]=255&t[22]|(255&t[23])<<8,this.pad[4]=255&t[24]|(255&t[25])<<8,this.pad[5]=255&t[26]|(255&t[27])<<8,this.pad[6]=255&t[28]|(255&t[29])<<8,this.pad[7]=255&t[30]|(255&t[31])<<8};pt.prototype.blocks=function(t,e,n){for(var r,i,o,s,a,u,c,h,f,l,p,d,y,g,v,b,m,w,_,S=this.fin?0:2048,k=this.h[0],T=this.h[1],A=this.h[2],E=this.h[3],x=this.h[4],C=this.h[5],P=this.h[6],R=this.h[7],O=this.h[8],M=this.h[9],U=this.r[0],L=this.r[1],B=this.r[2],I=this.r[3],N=this.r[4],D=this.r[5],j=this.r[6],Y=this.r[7],z=this.r[8],H=this.r[9];n>=16;)r=255&t[e+0]|(255&t[e+1])<<8,k+=8191&r,i=255&t[e+2]|(255&t[e+3])<<8,T+=8191&(r>>>13|i<<3),o=255&t[e+4]|(255&t[e+5])<<8,A+=8191&(i>>>10|o<<6),s=255&t[e+6]|(255&t[e+7])<<8,E+=8191&(o>>>7|s<<9),a=255&t[e+8]|(255&t[e+9])<<8,x+=8191&(s>>>4|a<<12),C+=a>>>1&8191,u=255&t[e+10]|(255&t[e+11])<<8,P+=8191&(a>>>14|u<<2),c=255&t[e+12]|(255&t[e+13])<<8,R+=8191&(u>>>11|c<<5),h=255&t[e+14]|(255&t[e+15])<<8,O+=8191&(c>>>8|h<<8),M+=h>>>5|S,f=0,l=f,l+=k*U,l+=T*(5*H),l+=A*(5*z),l+=E*(5*Y),l+=x*(5*j),f=l>>>13,l&=8191,l+=C*(5*D),l+=P*(5*N),l+=R*(5*I),l+=O*(5*B),l+=M*(5*L),f+=l>>>13,l&=8191,p=f,p+=k*L,p+=T*U,p+=A*(5*H),p+=E*(5*z),p+=x*(5*Y),f=p>>>13,p&=8191,p+=C*(5*j),p+=P*(5*D),p+=R*(5*N),p+=O*(5*I),p+=M*(5*B),f+=p>>>13,p&=8191,d=f,d+=k*B,d+=T*L,d+=A*U,d+=E*(5*H),d+=x*(5*z),f=d>>>13,d&=8191,d+=C*(5*Y),d+=P*(5*j),d+=R*(5*D),d+=O*(5*N),d+=M*(5*I),f+=d>>>13,d&=8191,y=f,y+=k*I,y+=T*B,y+=A*L,y+=E*U,y+=x*(5*H),f=y>>>13,y&=8191,y+=C*(5*z),y+=P*(5*Y),y+=R*(5*j),y+=O*(5*D),y+=M*(5*N),f+=y>>>13,y&=8191,g=f,g+=k*N,g+=T*I,g+=A*B,g+=E*L,g+=x*U,f=g>>>13,g&=8191,g+=C*(5*H),g+=P*(5*z),g+=R*(5*Y),g+=O*(5*j),g+=M*(5*D),f+=g>>>13,g&=8191,v=f,v+=k*D,v+=T*N,v+=A*I,v+=E*B,v+=x*L,f=v>>>13,v&=8191,v+=C*U,v+=P*(5*H),v+=R*(5*z),v+=O*(5*Y),v+=M*(5*j),f+=v>>>13,v&=8191,b=f,b+=k*j,b+=T*D,b+=A*N,b+=E*I,b+=x*B,f=b>>>13,b&=8191,b+=C*L,b+=P*U,b+=R*(5*H),b+=O*(5*z),b+=M*(5*Y),f+=b>>>13,b&=8191,m=f,m+=k*Y,m+=T*j,m+=A*D,m+=E*N,m+=x*I,f=m>>>13,m&=8191,m+=C*B,m+=P*L,m+=R*U,m+=O*(5*H),m+=M*(5*z),f+=m>>>13,m&=8191,w=f,w+=k*z,w+=T*Y,w+=A*j,w+=E*D,w+=x*N,f=w>>>13,w&=8191,w+=C*I,w+=P*B,w+=R*L,w+=O*U,w+=M*(5*H),f+=w>>>13,w&=8191,_=f,_+=k*H,_+=T*z,_+=A*Y,_+=E*j,_+=x*D,f=_>>>13,_&=8191,_+=C*N,_+=P*I,_+=R*B,_+=O*L,_+=M*U,f+=_>>>13,_&=8191,f=(f<<2)+f|0,f=f+l|0,l=8191&f,f>>>=13,p+=f,k=l,T=p,A=d,E=y,x=g,C=v,P=b,R=m,O=w,M=_,e+=16,n-=16;this.h[0]=k,this.h[1]=T,this.h[2]=A,this.h[3]=E,this.h[4]=x,this.h[5]=C,this.h[6]=P,this.h[7]=R,this.h[8]=O,this.h[9]=M},pt.prototype.finish=function(t,e){var n,r,i,o,s=new Uint16Array(10);if(this.leftover){for(o=this.leftover,this.buffer[o++]=1;o<16;o++)this.buffer[o]=0;this.fin=1,this.blocks(this.buffer,0,16)}for(n=this.h[1]>>>13,this.h[1]&=8191,o=2;o<10;o++)this.h[o]+=n,n=this.h[o]>>>13,this.h[o]&=8191;for(this.h[0]+=5*n,n=this.h[0]>>>13,this.h[0]&=8191,this.h[1]+=n,n=this.h[1]>>>13,this.h[1]&=8191,this.h[2]+=n,s[0]=this.h[0]+5,n=s[0]>>>13,s[0]&=8191,o=1;o<10;o++)s[o]=this.h[o]+n,n=s[o]>>>13,s[o]&=8191;for(s[9]-=8192,r=(1^n)-1,o=0;o<10;o++)s[o]&=r;for(r=~r,o=0;o<10;o++)this.h[o]=this.h[o]&r|s[o];for(this.h[0]=65535&(this.h[0]|this.h[1]<<13),this.h[1]=65535&(this.h[1]>>>3|this.h[2]<<10),this.h[2]=65535&(this.h[2]>>>6|this.h[3]<<7),this.h[3]=65535&(this.h[3]>>>9|this.h[4]<<4),this.h[4]=65535&(this.h[4]>>>12|this.h[5]<<1|this.h[6]<<14),this.h[5]=65535&(this.h[6]>>>2|this.h[7]<<11),this.h[6]=65535&(this.h[7]>>>5|this.h[8]<<8),this.h[7]=65535&(this.h[8]>>>8|this.h[9]<<5),i=this.h[0]+this.pad[0],this.h[0]=65535&i,o=1;o<8;o++)i=(this.h[o]+this.pad[o]|0)+(i>>>16)|0,this.h[o]=65535&i;t[e+0]=this.h[0]>>>0&255,t[e+1]=this.h[0]>>>8&255,t[e+2]=this.h[1]>>>0&255,t[e+3]=this.h[1]>>>8&255,t[e+4]=this.h[2]>>>0&255,t[e+5]=this.h[2]>>>8&255,t[e+6]=this.h[3]>>>0&255,t[e+7]=this.h[3]>>>8&255,t[e+8]=this.h[4]>>>0&255,t[e+9]=this.h[4]>>>8&255,t[e+10]=this.h[5]>>>0&255,t[e+11]=this.h[5]>>>8&255,t[e+12]=this.h[6]>>>0&255,t[e+13]=this.h[6]>>>8&255,t[e+14]=this.h[7]>>>0&255,t[e+15]=this.h[7]>>>8&255},pt.prototype.update=function(t,e,n){var r,i;if(this.leftover){for(i=16-this.leftover,i>n&&(i=n),r=0;r<i;r++)this.buffer[this.leftover+r]=t[e+r];if(n-=i,e+=i,this.leftover+=i,this.leftover<16)return;this.blocks(this.buffer,0,16),this.leftover=0}if(n>=16&&(i=n-n%16,this.blocks(t,e,i),e+=i,n-=i),n){for(r=0;r<n;r++)this.buffer[this.leftover+r]=t[e+r];this.leftover+=n}};var dt=g,yt=v,gt=[1116352408,3609767458,1899447441,602891725,3049323471,3964484399,3921009573,2173295548,961987163,4081628472,1508970993,3053834265,2453635748,2937671579,2870763221,3664609560,3624381080,2734883394,310598401,1164996542,607225278,1323610764,1426881987,3590304994,1925078388,4068182383,2162078206,991336113,2614888103,633803317,3248222580,3479774868,3835390401,2666613458,4022224774,944711139,264347078,2341262773,604807628,2007800933,770255983,1495990901,1249150122,1856431235,1555081692,3175218132,1996064986,2198950837,2554220882,3999719339,2821834349,766784016,2952996808,2566594879,3210313671,3203337956,3336571891,1034457026,3584528711,2466948901,113926993,3758326383,338241895,168717936,666307205,1188179964,773529912,1546045734,1294757372,1522805485,1396182291,2643833823,1695183700,2343527390,1986661051,1014477480,2177026350,1206759142,2456956037,344077627,2730485921,1290863460,2820302411,3158454273,3259730800,3505952657,3345764771,106217008,3516065817,3606008344,3600352804,1432725776,4094571909,1467031594,275423344,851169720,430227734,3100823752,506948616,1363258195,659060556,3750685593,883997877,3785050280,958139571,3318307427,1322822218,3812723403,1537002063,2003034995,1747873779,3602036899,1955562222,1575990012,2024104815,1125592928,2227730452,2716904306,2361852424,442776044,2428436474,593698344,2756734187,3733110249,3204031479,2999351573,3329325298,3815920427,3391569614,3928383900,3515267271,566280711,3940187606,3454069534,4118630271,4000239992,116418474,1914138554,174292421,2731055270,289380356,3203993006,460393269,320620315,685471733,587496836,852142971,1086792851,1017036298,365543100,1126000580,2618297676,1288033470,3409855158,1501505948,4234509866,1607167915,987167468,1816402316,1246189591],vt=new Float64Array([237,211,245,92,26,99,18,88,214,156,247,162,222,249,222,20,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,16]),bt=32,mt=24,wt=32,_t=16,St=32,kt=32,Tt=32,At=32,Et=32,xt=mt,Ct=wt,Pt=_t,Rt=64,Ot=32,Mt=64,Ut=32,Lt=64;t.lowlevel={crypto_core_hsalsa20:c,crypto_stream_xor:p,crypto_stream:l,crypto_stream_salsa20_xor:h,crypto_stream_salsa20:f,crypto_onetimeauth:d,crypto_onetimeauth_verify:y,crypto_verify_16:i,crypto_verify_32:o,crypto_secretbox:g,crypto_secretbox_open:v,crypto_scalarmult:O,crypto_scalarmult_base:M,crypto_box_beforenm:L,crypto_box_afternm:dt,crypto_box:B,crypto_box_open:I,crypto_box_keypair:U,crypto_hash:D,crypto_sign:K,crypto_sign_keypair:F,crypto_sign_open:W,crypto_secretbox_KEYBYTES:bt,crypto_secretbox_NONCEBYTES:mt,crypto_secretbox_ZEROBYTES:wt,crypto_secretbox_BOXZEROBYTES:_t,crypto_scalarmult_BYTES:St,crypto_scalarmult_SCALARBYTES:kt,crypto_box_PUBLICKEYBYTES:Tt,crypto_box_SECRETKEYBYTES:At,crypto_box_BEFORENMBYTES:Et,crypto_box_NONCEBYTES:xt,crypto_box_ZEROBYTES:Ct,crypto_box_BOXZEROBYTES:Pt,crypto_sign_BYTES:Rt,crypto_sign_PUBLICKEYBYTES:Ot,crypto_sign_SECRETKEYBYTES:Mt,crypto_sign_SEEDBYTES:Ut,crypto_hash_BYTES:Lt},t.randomBytes=function(t){var e=new Uint8Array(t);return et(e,t),e},t.secretbox=function(t,e,n){Q(t,e,n),V(n,e);for(var r=new Uint8Array(wt+t.length),i=new Uint8Array(r.length),o=0;o<t.length;o++)r[o+wt]=t[o];return g(i,r,r.length,e,n),i.subarray(_t)},t.secretbox.open=function(t,e,n){Q(t,e,n),V(n,e);for(var r=new Uint8Array(_t+t.length),i=new Uint8Array(r.length),o=0;o<t.length;o++)r[o+_t]=t[o];return r.length<32?null:0!==v(i,r,r.length,e,n)?null:i.subarray(wt)},t.secretbox.keyLength=bt,t.secretbox.nonceLength=mt,t.secretbox.overheadLength=_t,t.scalarMult=function(t,e){if(Q(t,e),t.length!==kt)throw new Error("bad n size");if(e.length!==St)throw new Error("bad p size");var n=new Uint8Array(St);return O(n,t,e),n},t.scalarMult.base=function(t){if(Q(t),t.length!==kt)throw new Error("bad n size");var e=new Uint8Array(St);return M(e,t),e},t.scalarMult.scalarLength=kt,t.scalarMult.groupElementLength=St,t.box=function(e,n,r,i){var o=t.box.before(r,i);return t.secretbox(e,n,o)},t.box.before=function(t,e){Q(t,e),Z(t,e);var n=new Uint8Array(Et);return L(n,t,e),n},t.box.after=t.secretbox,t.box.open=function(e,n,r,i){var o=t.box.before(r,i);return t.secretbox.open(e,n,o)},t.box.open.after=t.secretbox.open,t.box.keyPair=function(){var t=new Uint8Array(Tt),e=new Uint8Array(At);return U(t,e),{publicKey:t,secretKey:e}},t.box.keyPair.fromSecretKey=function(t){if(Q(t),t.length!==At)throw new Error("bad secret key size");var e=new Uint8Array(Tt);return M(e,t),{publicKey:e,secretKey:new Uint8Array(t)}},t.box.publicKeyLength=Tt,t.box.secretKeyLength=At,t.box.sharedKeyLength=Et,t.box.nonceLength=xt,t.box.overheadLength=t.secretbox.overheadLength,t.sign=function(t,e){if(Q(t,e),e.length!==Mt)throw new Error("bad secret key size");var n=new Uint8Array(Rt+t.length);return K(n,t,t.length,e),n},t.sign.open=function(t,e){if(Q(t,e),e.length!==Ot)throw new Error("bad public key size");var n=new Uint8Array(t.length),r=W(n,t,t.length,e);if(r<0)return null;for(var i=new Uint8Array(r),o=0;o<i.length;o++)i[o]=n[o];return i},t.sign.detached=function(e,n){for(var r=t.sign(e,n),i=new Uint8Array(Rt),o=0;o<i.length;o++)i[o]=r[o];return i},t.sign.detached.verify=function(t,e,n){if(Q(t,e,n),e.length!==Rt)throw new Error("bad signature size");if(n.length!==Ot)throw new Error("bad public key size");var r,i=new Uint8Array(Rt+t.length),o=new Uint8Array(Rt+t.length);for(r=0;r<Rt;r++)i[r]=e[r];for(r=0;r<t.length;r++)i[r+Rt]=t[r];return W(o,i,i.length,n)>=0},t.sign.keyPair=function(){var t=new Uint8Array(Ot),e=new Uint8Array(Mt);return F(t,e),{publicKey:t,secretKey:e}},t.sign.keyPair.fromSecretKey=function(t){if(Q(t),t.length!==Mt)throw new Error("bad secret key size");for(var e=new Uint8Array(Ot),n=0;n<e.length;n++)e[n]=t[32+n];return{publicKey:e,secretKey:new Uint8Array(t)}},t.sign.keyPair.fromSeed=function(t){if(Q(t),t.length!==Ut)throw new Error("bad seed size");for(var e=new Uint8Array(Ot),n=new Uint8Array(Mt),r=0;r<32;r++)n[r]=t[r];return F(e,n,!0),{publicKey:e,secretKey:n}},t.sign.publicKeyLength=Ot,t.sign.secretKeyLength=Mt,t.sign.seedLength=Ut,t.sign.signatureLength=Rt,t.hash=function(t){Q(t);var e=new Uint8Array(Lt);return D(e,t,t.length),e},t.hash.hashLength=Lt,t.verify=function(t,e){return Q(t,e),0!==t.length&&0!==e.length&&(t.length===e.length&&0===r(t,0,e,0,t.length))},t.setPRNG=function(t){et=t},function(){var e="undefined"!=typeof self?self.crypto||self.msCrypto:null;if(e&&e.getRandomValues){var r=65536;t.setPRNG(function(t,n){var i,o=new Uint8Array(n);for(i=0;i<n;i+=r)e.getRandomValues(o.subarray(i,i+Math.min(n-i,r)));for(i=0;i<n;i++)t[i]=o[i];$(o)})}else e=n(56),e&&e.randomBytes&&t.setPRNG(function(t,n){var r,i=e.randomBytes(n);for(r=0;r<n;r++)t[r]=i[r];$(i)})}()}("undefined"!=typeof t&&t.exports?t.exports:self.nacl=self.nacl||{})},function(t,e){},function(t,e,n){(function(e){!function(e,n){"use strict";"undefined"!=typeof t&&t.exports?t.exports=n():e.nacl?e.nacl.util=n():(e.nacl={},e.nacl.util=n())}(this,function(){"use strict";function t(t){if(!/^(?:[A-Za-z0-9+\/]{4})*(?:[A-Za-z0-9+\/]{2}==|[A-Za-z0-9+\/]{3}=)?$/.test(t))throw new TypeError("invalid encoding")}var n={};return n.decodeUTF8=function(t){if("string"!=typeof t)throw new TypeError("expected string");var e,n=unescape(encodeURIComponent(t)),r=new Uint8Array(n.length);for(e=0;e<n.length;e++)r[e]=n.charCodeAt(e);return r},n.encodeUTF8=function(t){var e,n=[];for(e=0;e<t.length;e++)n.push(String.fromCharCode(t[e]));return decodeURIComponent(escape(n.join("")))},"undefined"==typeof atob?"undefined"!=typeof e.from?(n.encodeBase64=function(t){return e.from(t).toString("base64")},n.decodeBase64=function(n){return t(n),new Uint8Array(Array.prototype.slice.call(e.from(n,"base64"),0))}):(n.encodeBase64=function(t){return new e(t).toString("base64")},n.decodeBase64=function(n){return t(n),new Uint8Array(Array.prototype.slice.call(new e(n,"base64"),0))}):(n.encodeBase64=function(t){var e,n=[],r=t.length;for(e=0;e<r;e++)n.push(String.fromCharCode(t[e]));return btoa(n.join(""))},n.decodeBase64=function(e){t(e);var n,r=atob(e),i=new Uint8Array(r.length);for(n=0;n<r.length;n++)i[n]=r.charCodeAt(n);return i}),n})}).call(e,n(58).Buffer)},function(t,e,n){/*!
 	 * The buffer module from node.js, for the browser.
 	 *
 	 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
diff --git a/dist/worker/pusher.worker.js b/dist/worker/pusher.worker.js
index 651211f79..7a0e5d6a1 100644
--- a/dist/worker/pusher.worker.js
+++ b/dist/worker/pusher.worker.js
@@ -1,5 +1,5 @@
 /*!
- * Pusher JavaScript Library v4.3.1
+ * Pusher JavaScript Library v4.4.0
  * https://pusher.com/
  *
  * Copyright 2017, Pusher
@@ -74,7 +74,7 @@ var Pusher =
 	var DefaultConfig = __webpack_require__(63);
 	var logger_1 = __webpack_require__(16);
 	var factory_1 = __webpack_require__(33);
-	var url_store_1 = __webpack_require__(45);
+	var url_store_1 = __webpack_require__(44);
 	var Pusher = (function () {
 	    function Pusher(app_key, options) {
 	        var _this = this;
@@ -119,16 +119,17 @@ var Pusher =
 	                _this.timelineSender.send(_this.connection.isUsingTLS());
 	            }
 	        });
-	        this.connection.bind('message', function (params) {
-	            var internal = (params.event.indexOf('pusher_internal:') === 0);
-	            if (params.channel) {
-	                var channel = _this.channel(params.channel);
+	        this.connection.bind('message', function (event) {
+	            var eventName = event.event;
+	            var internal = (eventName.indexOf('pusher_internal:') === 0);
+	            if (event.channel) {
+	                var channel = _this.channel(event.channel);
 	                if (channel) {
-	                    channel.handleEvent(params.event, params.data);
+	                    channel.handleEvent(event);
 	                }
 	            }
 	            if (!internal) {
-	                _this.global_emitter.emit(params.event, params.data);
+	                _this.global_emitter.emit(event.event, event.data);
 	            }
 	        });
 	        this.connection.bind('connecting', function () {
@@ -831,7 +832,7 @@ var Pusher =
 
 	"use strict";
 	var Defaults = {
-	    VERSION: "4.3.1",
+	    VERSION: "4.4.0",
 	    PROTOCOL: 7,
 	    host: 'ws.pusherapp.com',
 	    ws_port: 80,
@@ -1077,15 +1078,21 @@ var Pusher =
 	        this.unbind_global();
 	        return this;
 	    };
-	    Dispatcher.prototype.emit = function (eventName, data) {
-	        var i;
-	        for (i = 0; i < this.global_callbacks.length; i++) {
+	    Dispatcher.prototype.emit = function (eventName, data, metadata) {
+	        for (var i = 0; i < this.global_callbacks.length; i++) {
 	            this.global_callbacks[i](eventName, data);
 	        }
 	        var callbacks = this.callbacks.get(eventName);
+	        var args = [];
+	        if (metadata) {
+	            args.push(data, metadata);
+	        }
+	        else if (data) {
+	            args.push(data);
+	        }
 	        if (callbacks && callbacks.length > 0) {
-	            for (i = 0; i < callbacks.length; i++) {
-	                callbacks[i].fn.call(callbacks[i].context || (self), data);
+	            for (var i = 0; i < callbacks.length; i++) {
+	                callbacks[i].fn.apply(callbacks[i].context || (self), args);
 	            }
 	        }
 	        else if (this.failThrough) {
@@ -2262,30 +2269,35 @@ var Pusher =
 /***/ (function(module, exports) {
 
 	"use strict";
-	exports.decodeMessage = function (message) {
+	exports.decodeMessage = function (messageEvent) {
 	    try {
-	        var params = JSON.parse(message.data);
-	        if (typeof params.data === 'string') {
+	        var messageData = JSON.parse(messageEvent.data);
+	        var pusherEventData = messageData.data;
+	        if (typeof pusherEventData === 'string') {
 	            try {
-	                params.data = JSON.parse(params.data);
-	            }
-	            catch (e) {
-	                if (!(e instanceof SyntaxError)) {
-	                    throw e;
-	                }
+	                pusherEventData = JSON.parse(messageData.data);
 	            }
+	            catch (e) { }
 	        }
-	        return params;
+	        var pusherEvent = {
+	            event: messageData.event,
+	            channel: messageData.channel,
+	            data: pusherEventData
+	        };
+	        if (messageData.user_id) {
+	            pusherEvent.user_id = messageData.user_id;
+	        }
+	        return pusherEvent;
 	    }
 	    catch (e) {
-	        throw { type: 'MessageParseError', error: e, data: message.data };
+	        throw { type: 'MessageParseError', error: e, data: messageEvent.data };
 	    }
 	};
-	exports.encodeMessage = function (message) {
-	    return JSON.stringify(message);
+	exports.encodeMessage = function (event) {
+	    return JSON.stringify(event);
 	};
-	exports.processHandshake = function (message) {
-	    message = exports.decodeMessage(message);
+	exports.processHandshake = function (messageEvent) {
+	    var message = exports.decodeMessage(messageEvent);
 	    if (message.event === "pusher:connection_established") {
 	        if (!message.data.activity_timeout) {
 	            throw "No activity timeout specified in handshake";
@@ -2377,12 +2389,12 @@ var Pusher =
 	        return this.transport.send(data);
 	    };
 	    Connection.prototype.send_event = function (name, data, channel) {
-	        var message = { event: name, data: data };
+	        var event = { event: name, data: data };
 	        if (channel) {
-	            message.channel = channel;
+	            event.channel = channel;
 	        }
-	        logger_1["default"].debug('Event sent', message);
-	        return this.send(Protocol.encodeMessage(message));
+	        logger_1["default"].debug('Event sent', event);
+	        return this.send(Protocol.encodeMessage(event));
 	    };
 	    Connection.prototype.ping = function () {
 	        if (this.transport.supportsPing()) {
@@ -2398,23 +2410,23 @@ var Pusher =
 	    Connection.prototype.bindListeners = function () {
 	        var _this = this;
 	        var listeners = {
-	            message: function (m) {
-	                var message;
+	            message: function (messageEvent) {
+	                var pusherEvent;
 	                try {
-	                    message = Protocol.decodeMessage(m);
+	                    pusherEvent = Protocol.decodeMessage(messageEvent);
 	                }
 	                catch (e) {
 	                    _this.emit('error', {
 	                        type: 'MessageParseError',
 	                        error: e,
-	                        data: m.data
+	                        data: messageEvent.data
 	                    });
 	                }
-	                if (message !== undefined) {
-	                    logger_1["default"].debug('Event recd', message);
-	                    switch (message.event) {
+	                if (pusherEvent !== undefined) {
+	                    logger_1["default"].debug('Event recd', pusherEvent);
+	                    switch (pusherEvent.event) {
 	                        case 'pusher:error':
-	                            _this.emit('error', { type: 'PusherError', data: message.data });
+	                            _this.emit('error', { type: 'PusherError', data: pusherEvent.data });
 	                            break;
 	                        case 'pusher:ping':
 	                            _this.emit("ping");
@@ -2423,7 +2435,7 @@ var Pusher =
 	                            _this.emit("pong");
 	                            break;
 	                    }
-	                    _this.emit('message', message);
+	                    _this.emit('message', pusherEvent);
 	                }
 	            },
 	            activity: function () {
@@ -2536,8 +2548,8 @@ var Pusher =
 	};
 	var private_channel_1 = __webpack_require__(41);
 	var logger_1 = __webpack_require__(16);
-	var members_1 = __webpack_require__(44);
-	var url_store_1 = __webpack_require__(45);
+	var members_1 = __webpack_require__(45);
+	var url_store_1 = __webpack_require__(44);
 	var PresenceChannel = (function (_super) {
 	    __extends(PresenceChannel, _super);
 	    function PresenceChannel(name, pusher) {
@@ -2561,18 +2573,26 @@ var Pusher =
 	            callback(error, authData);
 	        });
 	    };
-	    PresenceChannel.prototype.handleEvent = function (event, data) {
-	        switch (event) {
+	    PresenceChannel.prototype.handleEvent = function (event) {
+	        var eventName = event.event;
+	        if (eventName.indexOf("pusher_internal:") === 0) {
+	            this.handleInternalEvent(event);
+	        }
+	        else {
+	            var data = event.data;
+	            var metadata = {};
+	            if (event.user_id) {
+	                metadata.user_id = event.user_id;
+	            }
+	            this.emit(eventName, data, metadata);
+	        }
+	    };
+	    PresenceChannel.prototype.handleInternalEvent = function (event) {
+	        var eventName = event.event;
+	        var data = event.data;
+	        switch (eventName) {
 	            case "pusher_internal:subscription_succeeded":
-	                this.subscriptionPending = false;
-	                this.subscribed = true;
-	                if (this.subscriptionCancelled) {
-	                    this.pusher.unsubscribe(this.name);
-	                }
-	                else {
-	                    this.members.onSubscription(data);
-	                    this.emit("pusher:subscription_succeeded", this.members);
-	                }
+	                this.handleSubscriptionSucceededEvent(event);
 	                break;
 	            case "pusher_internal:member_added":
 	                var addedMember = this.members.addMember(data);
@@ -2584,8 +2604,17 @@ var Pusher =
 	                    this.emit('pusher:member_removed', removedMember);
 	                }
 	                break;
-	            default:
-	                private_channel_1["default"].prototype.handleEvent.call(this, event, data);
+	        }
+	    };
+	    PresenceChannel.prototype.handleSubscriptionSucceededEvent = function (event) {
+	        this.subscriptionPending = false;
+	        this.subscribed = true;
+	        if (this.subscriptionCancelled) {
+	            this.pusher.unsubscribe(this.name);
+	        }
+	        else {
+	            this.members.onSubscription(event.data);
+	            this.emit("pusher:subscription_succeeded", this.members);
 	        }
 	    };
 	    PresenceChannel.prototype.disconnect = function () {
@@ -2638,6 +2667,7 @@ var Pusher =
 	var dispatcher_1 = __webpack_require__(14);
 	var Errors = __webpack_require__(43);
 	var logger_1 = __webpack_require__(16);
+	var url_store_1 = __webpack_require__(44);
 	var Channel = (function (_super) {
 	    __extends(Channel, _super);
 	    function Channel(name, pusher) {
@@ -2657,27 +2687,35 @@ var Pusher =
 	        if (event.indexOf("client-") !== 0) {
 	            throw new Errors.BadEventName("Event '" + event + "' does not start with 'client-'");
 	        }
+	        if (!this.subscribed) {
+	            var suffix = url_store_1["default"].buildLogSuffix("triggeringClientEvents");
+	            logger_1["default"].warn("Client event triggered before channel 'subscription_succeeded' event . " + suffix);
+	        }
 	        return this.pusher.send_event(event, data, this.name);
 	    };
 	    Channel.prototype.disconnect = function () {
 	        this.subscribed = false;
 	        this.subscriptionPending = false;
 	    };
-	    Channel.prototype.handleEvent = function (event, data) {
-	        if (event.indexOf("pusher_internal:") === 0) {
-	            if (event === "pusher_internal:subscription_succeeded") {
-	                this.subscriptionPending = false;
-	                this.subscribed = true;
-	                if (this.subscriptionCancelled) {
-	                    this.pusher.unsubscribe(this.name);
-	                }
-	                else {
-	                    this.emit("pusher:subscription_succeeded", data);
-	                }
-	            }
+	    Channel.prototype.handleEvent = function (event) {
+	        var eventName = event.event;
+	        var data = event.data;
+	        if (eventName === "pusher_internal:subscription_succeeded") {
+	            this.handleSubscriptionSucceededEvent(event);
+	        }
+	        else if (eventName.indexOf("pusher_internal:") !== 0) {
+	            var metadata = {};
+	            this.emit(eventName, data, metadata);
+	        }
+	    };
+	    Channel.prototype.handleSubscriptionSucceededEvent = function (event) {
+	        this.subscriptionPending = false;
+	        this.subscribed = true;
+	        if (this.subscriptionCancelled) {
+	            this.pusher.unsubscribe(this.name);
 	        }
 	        else {
-	            this.emit(event, data);
+	            this.emit("pusher:subscription_succeeded", event.data);
 	        }
 	    };
 	    Channel.prototype.subscribe = function () {
@@ -2689,7 +2727,7 @@ var Pusher =
 	        this.subscriptionCancelled = false;
 	        this.authorize(this.pusher.connection.socket_id, function (error, data) {
 	            if (error) {
-	                _this.handleEvent('pusher:subscription_error', data);
+	                _this.emit('pusher:subscription_error', data);
 	            }
 	            else {
 	                _this.pusher.send_event('pusher:subscribe', {
@@ -2788,6 +2826,45 @@ var Pusher =
 
 /***/ }),
 /* 44 */
+/***/ (function(module, exports) {
+
+	"use strict";
+	var urlStore = {
+	    baseUrl: "https://pusher.com",
+	    urls: {
+	        authenticationEndpoint: {
+	            path: "/docs/authenticating_users"
+	        },
+	        javascriptQuickStart: {
+	            path: "/docs/javascript_quick_start"
+	        },
+	        triggeringClientEvents: {
+	            path: "/docs/client_api_guide/client_events#trigger-events"
+	        }
+	    }
+	};
+	var buildLogSuffix = function (key) {
+	    var urlPrefix = "See:";
+	    var urlObj = urlStore.urls[key];
+	    if (!urlObj)
+	        return "";
+	    var url;
+	    if (urlObj.fullUrl) {
+	        url = urlObj.fullUrl;
+	    }
+	    else if (urlObj.path) {
+	        url = urlStore.baseUrl + urlObj.path;
+	    }
+	    if (!url)
+	        return "";
+	    return urlPrefix + " " + url;
+	};
+	exports.__esModule = true;
+	exports["default"] = { buildLogSuffix: buildLogSuffix };
+
+
+/***/ }),
+/* 45 */
 /***/ (function(module, exports, __webpack_require__) {
 
 	"use strict";
@@ -2848,42 +2925,6 @@ var Pusher =
 	exports["default"] = Members;
 
 
-/***/ }),
-/* 45 */
-/***/ (function(module, exports) {
-
-	"use strict";
-	var urlStore = {
-	    baseUrl: "https://pusher.com",
-	    urls: {
-	        authenticationEndpoint: {
-	            path: "/docs/authenticating_users"
-	        },
-	        javascriptQuickStart: {
-	            path: "/docs/javascript_quick_start"
-	        }
-	    }
-	};
-	var buildLogSuffix = function (key) {
-	    var urlPrefix = "See:";
-	    var urlObj = urlStore.urls[key];
-	    if (!urlObj)
-	        return "";
-	    var url;
-	    if (urlObj.fullUrl) {
-	        url = urlObj.fullUrl;
-	    }
-	    else if (urlObj.path) {
-	        url = urlStore.baseUrl + urlObj.path;
-	    }
-	    if (!url)
-	        return "";
-	    return urlPrefix + " " + url;
-	};
-	exports.__esModule = true;
-	exports["default"] = { buildLogSuffix: buildLogSuffix };
-
-
 /***/ }),
 /* 46 */
 /***/ (function(module, exports, __webpack_require__) {
@@ -2927,12 +2968,14 @@ var Pusher =
 	    EncryptedChannel.prototype.trigger = function (event, data) {
 	        throw new Errors.UnsupportedFeature('Client events are not currently supported for encrypted channels');
 	    };
-	    EncryptedChannel.prototype.handleEvent = function (event, data) {
-	        if (event.indexOf("pusher_internal:") === 0 || event.indexOf("pusher:") === 0) {
-	            _super.prototype.handleEvent.call(this, event, data);
+	    EncryptedChannel.prototype.handleEvent = function (event) {
+	        var eventName = event.event;
+	        var data = event.data;
+	        if (eventName.indexOf("pusher_internal:") === 0 || eventName.indexOf("pusher:") === 0) {
+	            _super.prototype.handleEvent.call(this, event);
 	            return;
 	        }
-	        this.handleEncryptedEvent(event, data);
+	        this.handleEncryptedEvent(eventName, data);
 	    };
 	    EncryptedChannel.prototype.handleEncryptedEvent = function (event, data) {
 	        var _this = this;
diff --git a/dist/worker/pusher.worker.min.js b/dist/worker/pusher.worker.min.js
index b4a6f1a17..66d1e3e50 100644
--- a/dist/worker/pusher.worker.min.js
+++ b/dist/worker/pusher.worker.min.js
@@ -1,13 +1,13 @@
 /*!
- * Pusher JavaScript Library v4.3.1
+ * Pusher JavaScript Library v4.4.0
  * https://pusher.com/
  *
  * Copyright 2017, Pusher
  * Released under the MIT licence.
  */
-var Pusher=function(t){function e(r){if(n[r])return n[r].exports;var i=n[r]={exports:{},id:r,loaded:!1};return t[r].call(i.exports,i,i.exports,e),i.loaded=!0,i.exports}var n={};return e.m=t,e.c=n,e.p="",e(0)}([function(t,e,n){"use strict";var r=n(1);t.exports=r.default},function(t,e,n){"use strict";function r(t){if(null===t||void 0===t)throw"You must pass your app key when you instantiate Pusher."}var i=n(2),o=n(4),s=n(14),a=n(29),u=n(30),c=n(31),h=n(7),f=n(11),l=n(63),p=n(16),d=n(33),y=n(45),g=function(){function t(e,n){var h=this;if(r(e),n=n||{},!n.cluster&&!n.wsHost&&!n.httpHost){var g=y.default.buildLogSuffix("javascriptQuickStart");p.default.warn("You should always specify a cluster when connecting. "+g)}this.key=e,this.config=o.extend(l.getGlobalConfig(),n.cluster?l.getClusterConfig(n.cluster):{},n),this.channels=d.default.createChannels(),this.global_emitter=new s.default,this.sessionID=Math.floor(1e9*Math.random()),this.timeline=new a.default(this.key,this.sessionID,{cluster:this.config.cluster,features:t.getClientFeatures(),params:this.config.timelineParams||{},limit:50,level:u.default.INFO,version:f.default.VERSION}),this.config.disableStats||(this.timelineSender=d.default.createTimelineSender(this.timeline,{host:this.config.statsHost,path:"/timeline/v2/"+i.default.TimelineTransport.name}));var v=function(t){var e=o.extend({},h.config,t);return c.build(i.default.getDefaultStrategy(e),e)};this.connection=d.default.createConnectionManager(this.key,o.extend({getStrategy:v,timeline:this.timeline,activityTimeout:this.config.activity_timeout,pongTimeout:this.config.pong_timeout,unavailableTimeout:this.config.unavailable_timeout},this.config,{useTLS:this.shouldUseTLS()})),this.connection.bind("connected",function(){h.subscribeAll(),h.timelineSender&&h.timelineSender.send(h.connection.isUsingTLS())}),this.connection.bind("message",function(t){var e=0===t.event.indexOf("pusher_internal:");if(t.channel){var n=h.channel(t.channel);n&&n.handleEvent(t.event,t.data)}e||h.global_emitter.emit(t.event,t.data)}),this.connection.bind("connecting",function(){h.channels.disconnect()}),this.connection.bind("disconnected",function(){h.channels.disconnect()}),this.connection.bind("error",function(t){p.default.warn("Error",t)}),t.instances.push(this),this.timeline.info({instances:t.instances.length}),t.isReady&&this.connect()}return t.ready=function(){t.isReady=!0;for(var e=0,n=t.instances.length;e<n;e++)t.instances[e].connect()},t.log=function(e){t.logToConsole&&self.console&&self.console.log&&self.console.log(e)},t.getClientFeatures=function(){return o.keys(o.filterObject({ws:i.default.Transports.ws},function(t){return t.isSupported({})}))},t.prototype.channel=function(t){return this.channels.find(t)},t.prototype.allChannels=function(){return this.channels.all()},t.prototype.connect=function(){if(this.connection.connect(),this.timelineSender&&!this.timelineSenderTimer){var t=this.connection.isUsingTLS(),e=this.timelineSender;this.timelineSenderTimer=new h.PeriodicTimer(6e4,function(){e.send(t)})}},t.prototype.disconnect=function(){this.connection.disconnect(),this.timelineSenderTimer&&(this.timelineSenderTimer.ensureAborted(),this.timelineSenderTimer=null)},t.prototype.bind=function(t,e,n){return this.global_emitter.bind(t,e,n),this},t.prototype.unbind=function(t,e,n){return this.global_emitter.unbind(t,e,n),this},t.prototype.bind_global=function(t){return this.global_emitter.bind_global(t),this},t.prototype.unbind_global=function(t){return this.global_emitter.unbind_global(t),this},t.prototype.unbind_all=function(t){return this.global_emitter.unbind_all(),this},t.prototype.subscribeAll=function(){var t;for(t in this.channels.channels)this.channels.channels.hasOwnProperty(t)&&this.subscribe(t)},t.prototype.subscribe=function(t){var e=this.channels.add(t,this);return e.subscriptionPending&&e.subscriptionCancelled?e.reinstateSubscription():e.subscriptionPending||"connected"!==this.connection.state||e.subscribe(),e},t.prototype.unsubscribe=function(t){var e=this.channels.find(t);e&&e.subscriptionPending?e.cancelSubscription():(e=this.channels.remove(t),e&&"connected"===this.connection.state&&e.unsubscribe())},t.prototype.send_event=function(t,e,n){return 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n=i.getCloseAction(e)||"backoff",r=i.getCloseError(e);t.finish(n,{error:r})},this.transport.bind("message",this.onMessage),this.transport.bind("closed",this.onClosed)},t.prototype.unbindListeners=function(){this.transport.unbind("message",this.onMessage),this.transport.unbind("closed",this.onClosed)},t.prototype.finish=function(t,e){this.callback(r.extend({transport:this.transport,action:t},e))},t}();e.__esModule=!0,e.default=s},function(t,e){"use strict";e.decodeMessage=function(t){try{var e=JSON.parse(t.data);if("string"==typeof e.data)try{e.data=JSON.parse(e.data)}catch(t){if(!(t instanceof SyntaxError))throw t}return e}catch(e){throw{type:"MessageParseError",error:e,data:t.data}}},e.encodeMessage=function(t){return JSON.stringify(t)},e.processHandshake=function(t){if(t=e.decodeMessage(t),"pusher:connection_established"===t.event){if(!t.data.activity_timeout)throw"No activity timeout specified in 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t.prototype.composeQuery=function(t){var e="socket_id="+encodeURIComponent(t)+"&channel_name="+encodeURIComponent(this.channel.name);for(var n in this.authOptions.params)e+="&"+encodeURIComponent(n)+"="+encodeURIComponent(this.authOptions.params[n]);return e},t.prototype.authorize=function(e,n){return t.authorizers=t.authorizers||r.default.getAuthorizers(),t.authorizers[this.type].call(this,r.default,e,n)},t}();e.__esModule=!0,e.default=i},function(t,e,n){"use strict";var r=n(2),i=function(){function t(t,e){this.timeline=t,this.options=e||{}}return t.prototype.send=function(t,e){this.timeline.isEmpty()||this.timeline.send(r.default.TimelineTransport.getAgent(this,t),e)},t}();e.__esModule=!0,e.default=i},function(t,e,n){"use strict";var r=this&&this.__extends||function(t,e){function n(){this.constructor=t}for(var r in e)e.hasOwnProperty(r)&&(t[r]=e[r]);t.prototype=null===e?Object.create(e):(n.prototype=e.prototype,new n)},i=n(41),o=n(16),s=n(44),a=n(45),u=function(t){function 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t=this;this.subscribed||(this.subscriptionPending=!0,this.subscriptionCancelled=!1,this.authorize(this.pusher.connection.socket_id,function(e,n){e?t.handleEvent("pusher:subscription_error",n):t.pusher.send_event("pusher:subscribe",{auth:n.auth,channel_data:n.channel_data,channel:t.name})}))},e.prototype.unsubscribe=function(){this.subscribed=!1,this.pusher.send_event("pusher:unsubscribe",{channel:this.name})},e.prototype.cancelSubscription=function(){this.subscriptionCancelled=!0},e.prototype.reinstateSubscription=function(){this.subscriptionCancelled=!1},e}(i.default);e.__esModule=!0,e.default=a},function(t,e){"use strict";var n=this&&this.__extends||function(t,e){function n(){this.constructor=t}for(var r in e)e.hasOwnProperty(r)&&(t[r]=e[r]);t.prototype=null===e?Object.create(e):(n.prototype=e.prototype,new n)},r=function(t){function e(){t.apply(this,arguments)}return n(e,t),e}(Error);e.BadEventName=r;var i=function(t){function e(){t.apply(this,arguments)}return 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e=this;r.objectApply(this.members,function(n,r){t(e.get(r))})},t.prototype.setMyID=function(t){this.myID=t},t.prototype.onSubscription=function(t){this.members=t.presence.hash,this.count=t.presence.count,this.me=this.get(this.myID)},t.prototype.addMember=function(t){return null===this.get(t.user_id)&&this.count++,this.members[t.user_id]=t.user_info,this.get(t.user_id)},t.prototype.removeMember=function(t){var e=this.get(t.user_id);return e&&(delete this.members[t.user_id],this.count--),e},t.prototype.reset=function(){this.members={},this.count=0,this.myID=null,this.me=null},t}();e.__esModule=!0,e.default=i},function(t,e){"use strict";var n={baseUrl:"https://pusher.com",urls:{authenticationEndpoint:{path:"/docs/authenticating_users"},javascriptQuickStart:{path:"/docs/javascript_quick_start"}}},r=function(t){var e="See:",r=n.urls[t];if(!r)return"";var i;return r.fullUrl?i=r.fullUrl:r.path&&(i=n.baseUrl+r.path),i?e+" 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r,i,o=0,s=0,a=0,u=0,c=0,h=0,f=0,l=0,p=0,d=0,y=0,g=0,v=0,b=0,m=0,_=0,w=0,S=0,A=0,k=0,T=0,E=0,C=0,P=0,x=0,O=0,R=0,U=0,M=0,L=0,B=0,I=n[0],N=n[1],D=n[2],Y=n[3],j=n[4],z=n[5],F=n[6],H=n[7],q=n[8],J=n[9],K=n[10],X=n[11],G=n[12],W=n[13],Z=n[14],V=n[15];r=e[0],o+=r*I,s+=r*N,a+=r*D,u+=r*Y,c+=r*j,h+=r*z,f+=r*F,l+=r*H,p+=r*q,d+=r*J,y+=r*K,g+=r*X,v+=r*G,b+=r*W,m+=r*Z,_+=r*V,r=e[1],s+=r*I,a+=r*N,u+=r*D,c+=r*Y,h+=r*j,f+=r*z,l+=r*F,p+=r*H,d+=r*q,y+=r*J,g+=r*K,v+=r*X,b+=r*G,m+=r*W,_+=r*Z,w+=r*V,r=e[2],a+=r*I,u+=r*N,c+=r*D,h+=r*Y,f+=r*j,l+=r*z,p+=r*F,d+=r*H,y+=r*q,g+=r*J,v+=r*K,b+=r*X,m+=r*G,_+=r*W,w+=r*Z,S+=r*V,r=e[3],u+=r*I,c+=r*N,h+=r*D,f+=r*Y,l+=r*j,p+=r*z,d+=r*F,y+=r*H,g+=r*q,v+=r*J,b+=r*K,m+=r*X,_+=r*G,w+=r*W,S+=r*Z,A+=r*V,r=e[4],c+=r*I,h+=r*N,f+=r*D,l+=r*Y,p+=r*j,d+=r*z,y+=r*F,g+=r*H,v+=r*q,b+=r*J,m+=r*K,_+=r*X,w+=r*G,S+=r*W,A+=r*Z,k+=r*V,r=e[5],h+=r*I,f+=r*N,l+=r*D,p+=r*Y,d+=r*j,y+=r*z,g+=r*F,v+=r*H,b+=r*q,m+=r*J,_+=r*K,w+=r*X,S+=r*G,A+=r*W,k+=r*Z,T+=r*V,r=e[6],f+=r*I,l+=r*N,p+=r*D,d+=r*Y,y+=r*j,g+=r*z,v+=r*F,b+=r*H,m+=r*q,_+=r*J,w+=r*K,S+=r*X,A+=r*G,k+=r*W,T+=r*Z,E+=r*V,r=e[7],l+=r*I,p+=r*N,d+=r*D,y+=r*Y,g+=r*j,v+=r*z,b+=r*F,m+=r*H,_+=r*q,w+=r*J,S+=r*K,A+=r*X,k+=r*G,T+=r*W,E+=r*Z,C+=r*V,r=e[8],p+=r*I,d+=r*N,y+=r*D,g+=r*Y,v+=r*j,b+=r*z,m+=r*F,_+=r*H,w+=r*q,S+=r*J,A+=r*K,k+=r*X,T+=r*G,E+=r*W,C+=r*Z,P+=r*V,r=e[9],d+=r*I,y+=r*N,g+=r*D,v+=r*Y,b+=r*j,m+=r*z,_+=r*F,w+=r*H,S+=r*q,A+=r*J,k+=r*K,T+=r*X,E+=r*G,C+=r*W,P+=r*Z,x+=r*V,r=e[10],y+=r*I,g+=r*N,v+=r*D,b+=r*Y,m+=r*j,_+=r*z,w+=r*F,S+=r*H,A+=r*q,k+=r*J,T+=r*K,E+=r*X,C+=r*G,P+=r*W,x+=r*Z,O+=r*V,r=e[11],g+=r*I,v+=r*N,b+=r*D,m+=r*Y,_+=r*j,w+=r*z,S+=r*F,A+=r*H,k+=r*q,T+=r*J,E+=r*K,C+=r*X;P+=r*G;x+=r*W,O+=r*Z,R+=r*V,r=e[12],v+=r*I,b+=r*N,m+=r*D,_+=r*Y,w+=r*j,S+=r*z,A+=r*F,k+=r*H,T+=r*q,E+=r*J,C+=r*K,P+=r*X,x+=r*G,O+=r*W,R+=r*Z,U+=r*V,r=e[13],b+=r*I,m+=r*N,_+=r*D,w+=r*Y,S+=r*j,A+=r*z,k+=r*F,T+=r*H,E+=r*q,C+=r*J,P+=r*K,x+=r*X,O+=r*G,R+=r*W,U+=r*Z,M+=r*V,r=e[14],m+=r*I,_+=r*N,w+=r*D,S+=r*Y,A+=r*j,k+=r*z,T+=r*F,E+=r*H,C+=r*q,P+=r*J,x+=r*K,O+=r*X,R+=r*G,U+=r*W,M+=r*Z,L+=r*V,r=e[15],_+=r*I,w+=r*N,S+=r*D,A+=r*Y,k+=r*j,T+=r*z,E+=r*F,C+=r*H,P+=r*q,x+=r*J,O+=r*K,R+=r*X,U+=r*G,M+=r*W,L+=r*Z,B+=r*V,o+=38*w,s+=38*S,a+=38*A,u+=38*k,c+=38*T,h+=38*E,f+=38*C,l+=38*P,p+=38*x,d+=38*O,y+=38*R,g+=38*U,v+=38*M,b+=38*L,m+=38*B,i=1,r=o+i+65535,i=Math.floor(r/65536),o=r-65536*i,r=s+i+65535,i=Math.floor(r/65536),s=r-65536*i,r=a+i+65535,i=Math.floor(r/65536),a=r-65536*i,r=u+i+65535,i=Math.floor(r/65536),u=r-65536*i,r=c+i+65535,i=Math.floor(r/65536),c=r-65536*i,r=h+i+65535,i=Math.floor(r/65536),h=r-65536*i,r=f+i+65535,i=Math.floor(r/65536),f=r-65536*i,r=l+i+65535,i=Math.floor(r/65536),l=r-65536*i,r=p+i+65535,i=Math.floor(r/65536),p=r-65536*i,r=d+i+65535,i=Math.floor(r/65536),d=r-65536*i,r=y+i+65535,i=Math.floor(r/65536),y=r-65536*i,r=g+i+65535,i=Math.floor(r/65536),g=r-65536*i,r=v+i+65535,i=Math.floor(r/65536),v=r-65536*i,r=b+i+65535,i=Math.floor(r/65536),b=r-65536*i,r=m+i+65535,i=Math.floor(r/65536),m=r-65536*i,r=_+i+65535,i=Math.floor(r/65536),_=r-65536*i,o+=i-1+37*(i-1),i=1,r=o+i+65535,i=Math.floor(r/65536),o=r-65536*i,r=s+i+65535,i=Math.floor(r/65536),s=r-65536*i,r=a+i+65535,i=Math.floor(r/65536),a=r-65536*i,r=u+i+65535,i=Math.floor(r/65536),u=r-65536*i,r=c+i+65535,i=Math.floor(r/65536),c=r-65536*i,r=h+i+65535,i=Math.floor(r/65536),h=r-65536*i,r=f+i+65535,i=Math.floor(r/65536),f=r-65536*i,r=l+i+65535,i=Math.floor(r/65536),l=r-65536*i,r=p+i+65535,i=Math.floor(r/65536),p=r-65536*i,r=d+i+65535,i=Math.floor(r/65536),d=r-65536*i,r=y+i+65535,i=Math.floor(r/65536),y=r-65536*i,r=g+i+65535,i=Math.floor(r/65536),g=r-65536*i,r=v+i+65535,i=Math.floor(r/65536),v=r-65536*i,r=b+i+65535,i=Math.floor(r/65536),b=r-65536*i,r=m+i+65535,i=Math.floor(r/65536),m=r-65536*i,r=_+i+65535,i=Math.floor(r/65536),_=r-65536*i,o+=i-1+37*(i-1),t[0]=o,t[1]=s,t[2]=a,t[3]=u,t[4]=c,t[5]=h,t[6]=f,t[7]=l,t[8]=p,t[9]=d,t[10]=y,t[11]=g,t[12]=v,t[13]=b;t[14]=m;t[15]=_}function P(t,e){C(t,e,e)}function x(t,e){var n,r=tt();for(n=0;n<16;n++)r[n]=e[n];for(n=253;n>=0;n--)P(r,r),2!==n&&4!==n&&C(r,r,e);for(n=0;n<16;n++)t[n]=r[n]}function O(t,e){var n,r=tt();for(n=0;n<16;n++)r[n]=e[n];for(n=250;n>=0;n--)P(r,r),1!==n&&C(r,r,e);for(n=0;n<16;n++)t[n]=r[n]}function R(t,e,n){var r,i,o=new Uint8Array(32),s=new Float64Array(80),a=tt(),u=tt(),c=tt(),h=tt(),f=tt(),l=tt();for(i=0;i<31;i++)o[i]=e[i];for(o[31]=127&e[31]|64,o[0]&=248,k(s,n),i=0;i<16;i++)u[i]=s[i],h[i]=a[i]=c[i]=0;for(a[0]=h[0]=1,i=254;i>=0;--i)r=o[i>>>3]>>>(7&i)&1,_(a,u,r),_(c,h,r),T(f,a,c),E(a,a,c),T(c,u,h),E(u,u,h),P(h,f),P(l,a),C(a,c,a),C(c,u,f),T(f,a,c),E(a,a,c),P(u,a),E(c,h,l),C(a,c,st),T(a,a,h),C(c,c,a),C(a,h,l),C(h,u,s),P(u,f),_(a,u,r),_(c,h,r);for(i=0;i<16;i++)s[i+16]=a[i],s[i+32]=c[i],s[i+48]=u[i],s[i+64]=h[i];var p=s.subarray(32),d=s.subarray(16);return x(p,p),C(d,d,p),w(t,d),0}function U(t,e){return R(t,e,rt)}function M(t,e){return et(e,32),U(t,e)}function L(t,e,n){var r=new Uint8Array(32);return R(r,n,e),c(t,nt,r,lt)}function B(t,e,n,r,i,o){var s=new Uint8Array(32);return L(s,i,o),dt(t,e,n,r,s)}function I(t,e,n,r,i,o){var s=new Uint8Array(32);return L(s,i,o),yt(t,e,n,r,s)}function N(t,e,n,r){for(var i,o,s,a,u,c,h,f,l,p,d,y,g,v,b,m,_,w,S,A,k,T,E,C,P,x,O=new Int32Array(16),R=new Int32Array(16),U=t[0],M=t[1],L=t[2],B=t[3],I=t[4],N=t[5],D=t[6],Y=t[7],j=e[0],z=e[1],F=e[2],H=e[3],q=e[4],J=e[5],K=e[6],X=e[7],G=0;r>=128;){for(S=0;S<16;S++)A=8*S+G,O[S]=n[A+0]<<24|n[A+1]<<16|n[A+2]<<8|n[A+3],R[S]=n[A+4]<<24|n[A+5]<<16|n[A+6]<<8|n[A+7];for(S=0;S<80;S++)if(i=U,o=M,s=L,a=B,u=I,c=N,h=D,f=Y,l=j,p=z,d=F,y=H,g=q,v=J,b=K,m=X,k=Y,T=X,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=(I>>>14|q<<18)^(I>>>18|q<<14)^(q>>>9|I<<23),T=(q>>>14|I<<18)^(q>>>18|I<<14)^(I>>>9|q<<23),E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,k=I&N^~I&D,T=q&J^~q&K,E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,k=gt[2*S],T=gt[2*S+1],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,k=O[S%16],T=R[S%16],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,_=65535&P|x<<16,w=65535&E|C<<16,k=_,T=w,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=(U>>>28|j<<4)^(j>>>2|U<<30)^(j>>>7|U<<25),T=(j>>>28|U<<4)^(U>>>2|j<<30)^(U>>>7|j<<25),E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,k=U&M^U&L^M&L,T=j&z^j&F^z&F,E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,f=65535&P|x<<16,m=65535&E|C<<16,k=a,T=y,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=_,T=w,E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,a=65535&P|x<<16,y=65535&E|C<<16,M=i,L=o,B=s,I=a,N=u,D=c,Y=h,U=f,z=l,F=p,H=d,q=y,J=g,K=v,X=b,j=m,S%16===15)for(A=0;A<16;A++)k=O[A],T=R[A],E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=O[(A+9)%16],T=R[(A+9)%16],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,_=O[(A+1)%16],w=R[(A+1)%16],k=(_>>>1|w<<31)^(_>>>8|w<<24)^_>>>7,T=(w>>>1|_<<31)^(w>>>8|_<<24)^(w>>>7|_<<25),E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,_=O[(A+14)%16],w=R[(A+14)%16],k=(_>>>19|w<<13)^(w>>>29|_<<3)^_>>>6,T=(w>>>19|_<<13)^(_>>>29|w<<3)^(w>>>6|_<<26),E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,O[A]=65535&P|x<<16,R[A]=65535&E|C<<16;k=U,T=j,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=t[0],T=e[0],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,t[0]=U=65535&P|x<<16,e[0]=j=65535&E|C<<16,k=M,T=z,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=t[1],T=e[1],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,t[1]=M=65535&P|x<<16,e[1]=z=65535&E|C<<16,k=L,T=F,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=t[2],T=e[2],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,t[2]=L=65535&P|x<<16,e[2]=F=65535&E|C<<16,k=B,T=H,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=t[3],T=e[3],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,t[3]=B=65535&P|x<<16,e[3]=H=65535&E|C<<16,k=I,T=q,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=t[4],T=e[4],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,t[4]=I=65535&P|x<<16,e[4]=q=65535&E|C<<16,k=N,T=J,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=t[5],T=e[5],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,t[5]=N=65535&P|x<<16,e[5]=J=65535&E|C<<16,k=D,T=K,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=t[6],T=e[6],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,t[6]=D=65535&P|x<<16,e[6]=K=65535&E|C<<16,k=Y,T=X,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=t[7],T=e[7],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,t[7]=Y=65535&P|x<<16,e[7]=X=65535&E|C<<16,G+=128,r-=128}return r}function D(t,n,r){var i,o=new Int32Array(8),s=new Int32Array(8),a=new Uint8Array(256),u=r;for(o[0]=1779033703,o[1]=3144134277,o[2]=1013904242,o[3]=2773480762,o[4]=1359893119,o[5]=2600822924,o[6]=528734635,o[7]=1541459225,s[0]=4089235720,s[1]=2227873595,s[2]=4271175723,s[3]=1595750129,s[4]=2917565137,s[5]=725511199,s[6]=4215389547,s[7]=327033209,N(o,s,n,r),r%=128,i=0;i<r;i++)a[i]=n[u-r+i];for(a[r]=128,r=256-128*(r<112?1:0),a[r-9]=0,e(a,r-8,u/536870912|0,u<<3),N(o,s,a,r),i=0;i<8;i++)e(t,8*i,o[i],s[i]);return 0}function Y(t,e){var n=tt(),r=tt(),i=tt(),o=tt(),s=tt(),a=tt(),u=tt(),c=tt(),h=tt();E(n,t[1],t[0]),E(h,e[1],e[0]),C(n,n,h),T(r,t[0],t[1]),T(h,e[0],e[1]),C(r,r,h),C(i,t[3],e[3]),C(i,i,ut),C(o,t[2],e[2]),T(o,o,o),E(s,r,n),E(a,o,i),T(u,o,i),T(c,r,n),C(t[0],s,a),C(t[1],c,u),C(t[2],u,a),C(t[3],s,c)}function j(t,e,n){var r;for(r=0;r<4;r++)_(t[r],e[r],n)}function z(t,e){var n=tt(),r=tt(),i=tt();x(i,e[2]),C(n,e[0],i),C(r,e[1],i),w(t,r),t[31]^=A(n)<<7}function F(t,e,n){var r,i;for(b(t[0],it),b(t[1],ot),b(t[2],ot),b(t[3],it),i=255;i>=0;--i)r=n[i/8|0]>>(7&i)&1,j(t,e,r),Y(e,t),Y(t,t),j(t,e,r)}function H(t,e){var n=[tt(),tt(),tt(),tt()];b(n[0],ct),b(n[1],ht),b(n[2],ot),C(n[3],ct,ht),F(t,n,e)}function q(t,e,n){var r,i=new Uint8Array(64),o=[tt(),tt(),tt(),tt()];for(n||et(e,32),D(i,e,32),i[0]&=248,i[31]&=127,i[31]|=64,H(o,i),z(t,o),r=0;r<32;r++)e[r+32]=t[r];return 0}function J(t,e){var n,r,i,o;for(r=63;r>=32;--r){for(n=0,i=r-32,o=r-12;i<o;++i)e[i]+=n-16*e[r]*vt[i-(r-32)],n=e[i]+128>>8,e[i]-=256*n;e[i]+=n,e[r]=0;
-}for(n=0,i=0;i<32;i++)e[i]+=n-(e[31]>>4)*vt[i],n=e[i]>>8,e[i]&=255;for(i=0;i<32;i++)e[i]-=n*vt[i];for(r=0;r<32;r++)e[r+1]+=e[r]>>8,t[r]=255&e[r]}function K(t){var e,n=new Float64Array(64);for(e=0;e<64;e++)n[e]=t[e];for(e=0;e<64;e++)t[e]=0;J(t,n)}function X(t,e,n,r){var i,o,s=new Uint8Array(64),a=new Uint8Array(64),u=new Uint8Array(64),c=new Float64Array(64),h=[tt(),tt(),tt(),tt()];D(s,r,32),s[0]&=248,s[31]&=127,s[31]|=64;var f=n+64;for(i=0;i<n;i++)t[64+i]=e[i];for(i=0;i<32;i++)t[32+i]=s[32+i];for(D(u,t.subarray(32),n+32),K(u),H(h,u),z(t,h),i=32;i<64;i++)t[i]=r[i];for(D(a,t,n+64),K(a),i=0;i<64;i++)c[i]=0;for(i=0;i<32;i++)c[i]=u[i];for(i=0;i<32;i++)for(o=0;o<32;o++)c[i+o]+=a[i]*s[o];return J(t.subarray(32),c),f}function G(t,e){var n=tt(),r=tt(),i=tt(),o=tt(),s=tt(),a=tt(),u=tt();return b(t[2],ot),k(t[1],e),P(i,t[1]),C(o,i,at),E(i,i,t[2]),T(o,t[2],o),P(s,o),P(a,s),C(u,a,s),C(n,u,i),C(n,n,o),O(n,n),C(n,n,i),C(n,n,o),C(n,n,o),C(t[0],n,o),P(r,t[0]),C(r,r,o),S(r,i)&&C(t[0],t[0],ft),P(r,t[0]),C(r,r,o),S(r,i)?-1:(A(t[0])===e[31]>>7&&E(t[0],it,t[0]),C(t[3],t[0],t[1]),0)}function W(t,e,n,r){var i,s,a=new Uint8Array(32),u=new Uint8Array(64),c=[tt(),tt(),tt(),tt()],h=[tt(),tt(),tt(),tt()];if(s=-1,n<64)return-1;if(G(h,r))return-1;for(i=0;i<n;i++)t[i]=e[i];for(i=0;i<32;i++)t[i+32]=r[i];if(D(u,t,n),K(u),F(c,h,u),H(h,e.subarray(32)),Y(c,h),z(a,c),n-=64,o(e,0,a,0)){for(i=0;i<n;i++)t[i]=0;return-1}for(i=0;i<n;i++)t[i]=e[i+64];return s=n}function Z(t,e){if(t.length!==bt)throw new Error("bad key size");if(e.length!==mt)throw new Error("bad nonce size")}function V(t,e){if(t.length!==kt)throw new Error("bad public key size");if(e.length!==Tt)throw new Error("bad secret key size")}function Q(){for(var t=0;t<arguments.length;t++)if(!(arguments[t]instanceof Uint8Array))throw new TypeError("unexpected type, use Uint8Array")}function $(t){for(var e=0;e<t.length;e++)t[e]=0}var tt=function(t){var e,n=new Float64Array(16);if(t)for(e=0;e<t.length;e++)n[e]=t[e];return n},et=function(){throw new Error("no PRNG")},nt=new Uint8Array(16),rt=new Uint8Array(32);rt[0]=9;var it=tt(),ot=tt([1]),st=tt([56129,1]),at=tt([30883,4953,19914,30187,55467,16705,2637,112,59544,30585,16505,36039,65139,11119,27886,20995]),ut=tt([61785,9906,39828,60374,45398,33411,5274,224,53552,61171,33010,6542,64743,22239,55772,9222]),ct=tt([54554,36645,11616,51542,42930,38181,51040,26924,56412,64982,57905,49316,21502,52590,14035,8553]),ht=tt([26200,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214]),ft=tt([41136,18958,6951,50414,58488,44335,6150,12099,55207,15867,153,11085,57099,20417,9344,11139]),lt=new Uint8Array([101,120,112,97,110,100,32,51,50,45,98,121,116,101,32,107]),pt=function(t){this.buffer=new Uint8Array(16),this.r=new Uint16Array(10),this.h=new Uint16Array(10),this.pad=new Uint16Array(8),this.leftover=0,this.fin=0;var e,n,r,i,o,s,a,u;e=255&t[0]|(255&t[1])<<8,this.r[0]=8191&e,n=255&t[2]|(255&t[3])<<8,this.r[1]=8191&(e>>>13|n<<3),r=255&t[4]|(255&t[5])<<8,this.r[2]=7939&(n>>>10|r<<6),i=255&t[6]|(255&t[7])<<8,this.r[3]=8191&(r>>>7|i<<9),o=255&t[8]|(255&t[9])<<8,this.r[4]=255&(i>>>4|o<<12),this.r[5]=o>>>1&8190,s=255&t[10]|(255&t[11])<<8,this.r[6]=8191&(o>>>14|s<<2),a=255&t[12]|(255&t[13])<<8,this.r[7]=8065&(s>>>11|a<<5),u=255&t[14]|(255&t[15])<<8,this.r[8]=8191&(a>>>8|u<<8),this.r[9]=u>>>5&127,this.pad[0]=255&t[16]|(255&t[17])<<8,this.pad[1]=255&t[18]|(255&t[19])<<8,this.pad[2]=255&t[20]|(255&t[21])<<8,this.pad[3]=255&t[22]|(255&t[23])<<8,this.pad[4]=255&t[24]|(255&t[25])<<8,this.pad[5]=255&t[26]|(255&t[27])<<8,this.pad[6]=255&t[28]|(255&t[29])<<8,this.pad[7]=255&t[30]|(255&t[31])<<8};pt.prototype.blocks=function(t,e,n){for(var r,i,o,s,a,u,c,h,f,l,p,d,y,g,v,b,m,_,w,S=this.fin?0:2048,A=this.h[0],k=this.h[1],T=this.h[2],E=this.h[3],C=this.h[4],P=this.h[5],x=this.h[6],O=this.h[7],R=this.h[8],U=this.h[9],M=this.r[0],L=this.r[1],B=this.r[2],I=this.r[3],N=this.r[4],D=this.r[5],Y=this.r[6],j=this.r[7],z=this.r[8],F=this.r[9];n>=16;)r=255&t[e+0]|(255&t[e+1])<<8,A+=8191&r,i=255&t[e+2]|(255&t[e+3])<<8,k+=8191&(r>>>13|i<<3),o=255&t[e+4]|(255&t[e+5])<<8,T+=8191&(i>>>10|o<<6),s=255&t[e+6]|(255&t[e+7])<<8,E+=8191&(o>>>7|s<<9),a=255&t[e+8]|(255&t[e+9])<<8,C+=8191&(s>>>4|a<<12),P+=a>>>1&8191,u=255&t[e+10]|(255&t[e+11])<<8,x+=8191&(a>>>14|u<<2),c=255&t[e+12]|(255&t[e+13])<<8,O+=8191&(u>>>11|c<<5),h=255&t[e+14]|(255&t[e+15])<<8,R+=8191&(c>>>8|h<<8),U+=h>>>5|S,f=0,l=f,l+=A*M,l+=k*(5*F),l+=T*(5*z),l+=E*(5*j),l+=C*(5*Y),f=l>>>13,l&=8191,l+=P*(5*D),l+=x*(5*N),l+=O*(5*I),l+=R*(5*B),l+=U*(5*L),f+=l>>>13,l&=8191,p=f,p+=A*L,p+=k*M,p+=T*(5*F),p+=E*(5*z),p+=C*(5*j),f=p>>>13,p&=8191,p+=P*(5*Y),p+=x*(5*D),p+=O*(5*N),p+=R*(5*I),p+=U*(5*B),f+=p>>>13,p&=8191,d=f,d+=A*B,d+=k*L,d+=T*M,d+=E*(5*F),d+=C*(5*z),f=d>>>13,d&=8191,d+=P*(5*j),d+=x*(5*Y),d+=O*(5*D),d+=R*(5*N),d+=U*(5*I),f+=d>>>13,d&=8191,y=f,y+=A*I,y+=k*B,y+=T*L,y+=E*M,y+=C*(5*F),f=y>>>13,y&=8191,y+=P*(5*z),y+=x*(5*j),y+=O*(5*Y),y+=R*(5*D),y+=U*(5*N),f+=y>>>13,y&=8191,g=f,g+=A*N,g+=k*I,g+=T*B,g+=E*L,g+=C*M,f=g>>>13,g&=8191,g+=P*(5*F),g+=x*(5*z),g+=O*(5*j),g+=R*(5*Y),g+=U*(5*D),f+=g>>>13,g&=8191,v=f,v+=A*D,v+=k*N,v+=T*I,v+=E*B,v+=C*L,f=v>>>13,v&=8191,v+=P*M,v+=x*(5*F),v+=O*(5*z),v+=R*(5*j),v+=U*(5*Y),f+=v>>>13,v&=8191,b=f,b+=A*Y,b+=k*D,b+=T*N,b+=E*I,b+=C*B,f=b>>>13,b&=8191,b+=P*L,b+=x*M,b+=O*(5*F),b+=R*(5*z),b+=U*(5*j),f+=b>>>13,b&=8191,m=f,m+=A*j,m+=k*Y,m+=T*D,m+=E*N,m+=C*I,f=m>>>13,m&=8191,m+=P*B,m+=x*L,m+=O*M,m+=R*(5*F),m+=U*(5*z),f+=m>>>13,m&=8191,_=f,_+=A*z,_+=k*j,_+=T*Y,_+=E*D,_+=C*N,f=_>>>13,_&=8191,_+=P*I,_+=x*B,_+=O*L,_+=R*M,_+=U*(5*F),f+=_>>>13,_&=8191,w=f,w+=A*F,w+=k*z,w+=T*j,w+=E*Y,w+=C*D,f=w>>>13,w&=8191,w+=P*N,w+=x*I,w+=O*B,w+=R*L,w+=U*M,f+=w>>>13,w&=8191,f=(f<<2)+f|0,f=f+l|0,l=8191&f,f>>>=13,p+=f,A=l,k=p,T=d,E=y,C=g,P=v,x=b,O=m,R=_,U=w,e+=16,n-=16;this.h[0]=A,this.h[1]=k,this.h[2]=T,this.h[3]=E,this.h[4]=C,this.h[5]=P,this.h[6]=x,this.h[7]=O,this.h[8]=R,this.h[9]=U},pt.prototype.finish=function(t,e){var n,r,i,o,s=new Uint16Array(10);if(this.leftover){for(o=this.leftover,this.buffer[o++]=1;o<16;o++)this.buffer[o]=0;this.fin=1,this.blocks(this.buffer,0,16)}for(n=this.h[1]>>>13,this.h[1]&=8191,o=2;o<10;o++)this.h[o]+=n,n=this.h[o]>>>13,this.h[o]&=8191;for(this.h[0]+=5*n,n=this.h[0]>>>13,this.h[0]&=8191,this.h[1]+=n,n=this.h[1]>>>13,this.h[1]&=8191,this.h[2]+=n,s[0]=this.h[0]+5,n=s[0]>>>13,s[0]&=8191,o=1;o<10;o++)s[o]=this.h[o]+n,n=s[o]>>>13,s[o]&=8191;for(s[9]-=8192,r=(1^n)-1,o=0;o<10;o++)s[o]&=r;for(r=~r,o=0;o<10;o++)this.h[o]=this.h[o]&r|s[o];for(this.h[0]=65535&(this.h[0]|this.h[1]<<13),this.h[1]=65535&(this.h[1]>>>3|this.h[2]<<10),this.h[2]=65535&(this.h[2]>>>6|this.h[3]<<7),this.h[3]=65535&(this.h[3]>>>9|this.h[4]<<4),this.h[4]=65535&(this.h[4]>>>12|this.h[5]<<1|this.h[6]<<14),this.h[5]=65535&(this.h[6]>>>2|this.h[7]<<11),this.h[6]=65535&(this.h[7]>>>5|this.h[8]<<8),this.h[7]=65535&(this.h[8]>>>8|this.h[9]<<5),i=this.h[0]+this.pad[0],this.h[0]=65535&i,o=1;o<8;o++)i=(this.h[o]+this.pad[o]|0)+(i>>>16)|0,this.h[o]=65535&i;t[e+0]=this.h[0]>>>0&255,t[e+1]=this.h[0]>>>8&255,t[e+2]=this.h[1]>>>0&255,t[e+3]=this.h[1]>>>8&255,t[e+4]=this.h[2]>>>0&255,t[e+5]=this.h[2]>>>8&255,t[e+6]=this.h[3]>>>0&255,t[e+7]=this.h[3]>>>8&255,t[e+8]=this.h[4]>>>0&255,t[e+9]=this.h[4]>>>8&255,t[e+10]=this.h[5]>>>0&255,t[e+11]=this.h[5]>>>8&255,t[e+12]=this.h[6]>>>0&255,t[e+13]=this.h[6]>>>8&255,t[e+14]=this.h[7]>>>0&255,t[e+15]=this.h[7]>>>8&255},pt.prototype.update=function(t,e,n){var r,i;if(this.leftover){for(i=16-this.leftover,i>n&&(i=n),r=0;r<i;r++)this.buffer[this.leftover+r]=t[e+r];if(n-=i,e+=i,this.leftover+=i,this.leftover<16)return;this.blocks(this.buffer,0,16),this.leftover=0}if(n>=16&&(i=n-n%16,this.blocks(t,e,i),e+=i,n-=i),n){for(r=0;r<n;r++)this.buffer[this.leftover+r]=t[e+r];this.leftover+=n}};var dt=g,yt=v,gt=[1116352408,3609767458,1899447441,602891725,3049323471,3964484399,3921009573,2173295548,961987163,4081628472,1508970993,3053834265,2453635748,2937671579,2870763221,3664609560,3624381080,2734883394,310598401,1164996542,607225278,1323610764,1426881987,3590304994,1925078388,4068182383,2162078206,991336113,2614888103,633803317,3248222580,3479774868,3835390401,2666613458,4022224774,944711139,264347078,2341262773,604807628,2007800933,770255983,1495990901,1249150122,1856431235,1555081692,3175218132,1996064986,2198950837,2554220882,3999719339,2821834349,766784016,2952996808,2566594879,3210313671,3203337956,3336571891,1034457026,3584528711,2466948901,113926993,3758326383,338241895,168717936,666307205,1188179964,773529912,1546045734,1294757372,1522805485,1396182291,2643833823,1695183700,2343527390,1986661051,1014477480,2177026350,1206759142,2456956037,344077627,2730485921,1290863460,2820302411,3158454273,3259730800,3505952657,3345764771,106217008,3516065817,3606008344,3600352804,1432725776,4094571909,1467031594,275423344,851169720,430227734,3100823752,506948616,1363258195,659060556,3750685593,883997877,3785050280,958139571,3318307427,1322822218,3812723403,1537002063,2003034995,1747873779,3602036899,1955562222,1575990012,2024104815,1125592928,2227730452,2716904306,2361852424,442776044,2428436474,593698344,2756734187,3733110249,3204031479,2999351573,3329325298,3815920427,3391569614,3928383900,3515267271,566280711,3940187606,3454069534,4118630271,4000239992,116418474,1914138554,174292421,2731055270,289380356,3203993006,460393269,320620315,685471733,587496836,852142971,1086792851,1017036298,365543100,1126000580,2618297676,1288033470,3409855158,1501505948,4234509866,1607167915,987167468,1816402316,1246189591],vt=new 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e=new Uint8Array(t);return et(e,t),e},t.secretbox=function(t,e,n){Q(t,e,n),Z(n,e);for(var r=new Uint8Array(_t+t.length),i=new Uint8Array(r.length),o=0;o<t.length;o++)r[o+_t]=t[o];return g(i,r,r.length,e,n),i.subarray(wt)},t.secretbox.open=function(t,e,n){Q(t,e,n),Z(n,e);for(var r=new Uint8Array(wt+t.length),i=new Uint8Array(r.length),o=0;o<t.length;o++)r[o+wt]=t[o];return r.length<32?null:0!==v(i,r,r.length,e,n)?null:i.subarray(_t)},t.secretbox.keyLength=bt,t.secretbox.nonceLength=mt,t.secretbox.overheadLength=wt,t.scalarMult=function(t,e){if(Q(t,e),t.length!==At)throw new Error("bad n size");if(e.length!==St)throw new Error("bad p size");var n=new Uint8Array(St);return R(n,t,e),n},t.scalarMult.base=function(t){if(Q(t),t.length!==At)throw new Error("bad n size");var e=new Uint8Array(St);return U(e,t),e},t.scalarMult.scalarLength=At,t.scalarMult.groupElementLength=St,t.box=function(e,n,r,i){var o=t.box.before(r,i);return t.secretbox(e,n,o)},t.box.before=function(t,e){Q(t,e),V(t,e);var 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t=this;this.subscribed||(this.subscriptionPending=!0,this.subscriptionCancelled=!1,this.authorize(this.pusher.connection.socket_id,function(e,n){e?t.emit("pusher:subscription_error",n):t.pusher.send_event("pusher:subscribe",{auth:n.auth,channel_data:n.channel_data,channel:t.name})}))},e.prototype.unsubscribe=function(){this.subscribed=!1,this.pusher.send_event("pusher:unsubscribe",{channel:this.name})},e.prototype.cancelSubscription=function(){this.subscriptionCancelled=!0},e.prototype.reinstateSubscription=function(){this.subscriptionCancelled=!1},e}(i.default);e.__esModule=!0,e.default=u},function(t,e){"use strict";var n=this&&this.__extends||function(t,e){function n(){this.constructor=t}for(var r in e)e.hasOwnProperty(r)&&(t[r]=e[r]);t.prototype=null===e?Object.create(e):(n.prototype=e.prototype,new n)},r=function(t){function e(){t.apply(this,arguments)}return n(e,t),e}(Error);e.BadEventName=r;var i=function(t){function e(){t.apply(this,arguments)}return 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r,i,o=0,s=0,a=0,u=0,c=0,h=0,f=0,l=0,p=0,d=0,y=0,g=0,v=0,b=0,m=0,_=0,w=0,S=0,A=0,k=0,T=0,E=0,C=0,P=0,x=0,O=0,R=0,U=0,M=0,L=0,B=0,I=n[0],N=n[1],D=n[2],Y=n[3],j=n[4],z=n[5],F=n[6],H=n[7],q=n[8],J=n[9],K=n[10],X=n[11],G=n[12],W=n[13],Z=n[14],V=n[15];r=e[0],o+=r*I,s+=r*N,a+=r*D,u+=r*Y,c+=r*j,h+=r*z,f+=r*F,l+=r*H,p+=r*q,d+=r*J,y+=r*K,g+=r*X,v+=r*G,b+=r*W,m+=r*Z,_+=r*V,r=e[1],s+=r*I,a+=r*N,u+=r*D,c+=r*Y,h+=r*j,f+=r*z,l+=r*F,p+=r*H,d+=r*q,y+=r*J,g+=r*K,v+=r*X,b+=r*G,m+=r*W,_+=r*Z,w+=r*V,r=e[2],a+=r*I,u+=r*N,c+=r*D,h+=r*Y,f+=r*j,l+=r*z,p+=r*F,d+=r*H,y+=r*q,g+=r*J,v+=r*K,b+=r*X,m+=r*G,_+=r*W,w+=r*Z,S+=r*V,r=e[3],u+=r*I,c+=r*N,h+=r*D,f+=r*Y,l+=r*j,p+=r*z,d+=r*F,y+=r*H,g+=r*q,v+=r*J,b+=r*K,m+=r*X,_+=r*G,w+=r*W,S+=r*Z,A+=r*V,r=e[4],c+=r*I,h+=r*N,f+=r*D,l+=r*Y,p+=r*j,d+=r*z,y+=r*F,g+=r*H,v+=r*q,b+=r*J,m+=r*K,_+=r*X,w+=r*G,S+=r*W,A+=r*Z,k+=r*V,r=e[5],h+=r*I,f+=r*N,l+=r*D,p+=r*Y,d+=r*j,y+=r*z,g+=r*F,v+=r*H,b+=r*q,m+=r*J,_+=r*K,w+=r*X,S+=r*G,A+=r*W,k+=r*Z,T+=r*V,r=e[6],f+=r*I,l+=r*N,p+=r*D,d+=r*Y,y+=r*j,g+=r*z,v+=r*F,b+=r*H,m+=r*q,_+=r*J,w+=r*K,S+=r*X,A+=r*G,k+=r*W,T+=r*Z,E+=r*V,r=e[7],l+=r*I,p+=r*N,d+=r*D,y+=r*Y,g+=r*j,v+=r*z,b+=r*F,m+=r*H,_+=r*q,w+=r*J,S+=r*K,A+=r*X,k+=r*G,T+=r*W,E+=r*Z,C+=r*V,r=e[8],p+=r*I,d+=r*N,y+=r*D,g+=r*Y,v+=r*j,b+=r*z,m+=r*F,_+=r*H,w+=r*q,S+=r*J,A+=r*K,k+=r*X,T+=r*G,E+=r*W,C+=r*Z,P+=r*V,r=e[9],d+=r*I,y+=r*N,g+=r*D,v+=r*Y,b+=r*j,m+=r*z,_+=r*F,w+=r*H,S+=r*q,A+=r*J,k+=r*K,T+=r*X,E+=r*G,C+=r*W,P+=r*Z,x+=r*V,r=e[10],y+=r*I,g+=r*N,v+=r*D,b+=r*Y,m+=r*j,_+=r*z,w+=r*F,S+=r*H,A+=r*q,k+=r*J,T+=r*K,E+=r*X,C+=r*G,P+=r*W,x+=r*Z,O+=r*V,r=e[11],g+=r*I,v+=r*N,b+=r*D,m+=r*Y,_+=r*j,w+=r*z,S+=r*F,A+=r*H,k+=r*q,T+=r*J,E+=r*K,C+=r*X;P+=r*G;x+=r*W,O+=r*Z,R+=r*V,r=e[12],v+=r*I,b+=r*N,m+=r*D,_+=r*Y,w+=r*j,S+=r*z,A+=r*F,k+=r*H,T+=r*q,E+=r*J,C+=r*K,P+=r*X,x+=r*G,O+=r*W,R+=r*Z,U+=r*V,r=e[13],b+=r*I,m+=r*N,_+=r*D,w+=r*Y,S+=r*j,A+=r*z,k+=r*F,T+=r*H,E+=r*q,C+=r*J,P+=r*K,x+=r*X,O+=r*G,R+=r*W,U+=r*Z,M+=r*V,r=e[14],m+=r*I,_+=r*N,w+=r*D,S+=r*Y,A+=r*j,k+=r*z,T+=r*F,E+=r*H,C+=r*q,P+=r*J,x+=r*K,O+=r*X,R+=r*G,U+=r*W,M+=r*Z,L+=r*V,r=e[15],_+=r*I,w+=r*N,S+=r*D,A+=r*Y,k+=r*j,T+=r*z,E+=r*F,C+=r*H,P+=r*q,x+=r*J,O+=r*K,R+=r*X,U+=r*G,M+=r*W,L+=r*Z,B+=r*V,o+=38*w,s+=38*S,a+=38*A,u+=38*k,c+=38*T,h+=38*E,f+=38*C,l+=38*P,p+=38*x,d+=38*O,y+=38*R,g+=38*U,v+=38*M,b+=38*L,m+=38*B,i=1,r=o+i+65535,i=Math.floor(r/65536),o=r-65536*i,r=s+i+65535,i=Math.floor(r/65536),s=r-65536*i,r=a+i+65535,i=Math.floor(r/65536),a=r-65536*i,r=u+i+65535,i=Math.floor(r/65536),u=r-65536*i,r=c+i+65535,i=Math.floor(r/65536),c=r-65536*i,r=h+i+65535,i=Math.floor(r/65536),h=r-65536*i,r=f+i+65535,i=Math.floor(r/65536),f=r-65536*i,r=l+i+65535,i=Math.floor(r/65536),l=r-65536*i,r=p+i+65535,i=Math.floor(r/65536),p=r-65536*i,r=d+i+65535,i=Math.floor(r/65536),d=r-65536*i,r=y+i+65535,i=Math.floor(r/65536),y=r-65536*i,r=g+i+65535,i=Math.floor(r/65536),g=r-65536*i,r=v+i+65535,i=Math.floor(r/65536),v=r-65536*i,r=b+i+65535,i=Math.floor(r/65536),b=r-65536*i,r=m+i+65535,i=Math.floor(r/65536),m=r-65536*i,r=_+i+65535,i=Math.floor(r/65536),_=r-65536*i,o+=i-1+37*(i-1),i=1,r=o+i+65535,i=Math.floor(r/65536),o=r-65536*i,r=s+i+65535,i=Math.floor(r/65536),s=r-65536*i,r=a+i+65535,i=Math.floor(r/65536),a=r-65536*i,r=u+i+65535,i=Math.floor(r/65536),u=r-65536*i,r=c+i+65535,i=Math.floor(r/65536),c=r-65536*i,r=h+i+65535,i=Math.floor(r/65536),h=r-65536*i,r=f+i+65535,i=Math.floor(r/65536),f=r-65536*i,r=l+i+65535,i=Math.floor(r/65536),l=r-65536*i,r=p+i+65535,i=Math.floor(r/65536),p=r-65536*i,r=d+i+65535,i=Math.floor(r/65536),d=r-65536*i,r=y+i+65535,i=Math.floor(r/65536),y=r-65536*i,r=g+i+65535,i=Math.floor(r/65536),g=r-65536*i,r=v+i+65535,i=Math.floor(r/65536),v=r-65536*i,r=b+i+65535,i=Math.floor(r/65536),b=r-65536*i,r=m+i+65535,i=Math.floor(r/65536),m=r-65536*i,r=_+i+65535,i=Math.floor(r/65536),_=r-65536*i,o+=i-1+37*(i-1),t[0]=o,t[1]=s,t[2]=a,t[3]=u,t[4]=c,t[5]=h,t[6]=f,t[7]=l,t[8]=p,t[9]=d,t[10]=y,t[11]=g,t[12]=v,t[13]=b;t[14]=m;t[15]=_}function P(t,e){C(t,e,e)}function x(t,e){var n,r=tt();for(n=0;n<16;n++)r[n]=e[n];for(n=253;n>=0;n--)P(r,r),2!==n&&4!==n&&C(r,r,e);for(n=0;n<16;n++)t[n]=r[n]}function O(t,e){var n,r=tt();for(n=0;n<16;n++)r[n]=e[n];for(n=250;n>=0;n--)P(r,r),1!==n&&C(r,r,e);for(n=0;n<16;n++)t[n]=r[n]}function R(t,e,n){var r,i,o=new Uint8Array(32),s=new Float64Array(80),a=tt(),u=tt(),c=tt(),h=tt(),f=tt(),l=tt();for(i=0;i<31;i++)o[i]=e[i];for(o[31]=127&e[31]|64,o[0]&=248,k(s,n),i=0;i<16;i++)u[i]=s[i],h[i]=a[i]=c[i]=0;for(a[0]=h[0]=1,i=254;i>=0;--i)r=o[i>>>3]>>>(7&i)&1,_(a,u,r),_(c,h,r),T(f,a,c),E(a,a,c),T(c,u,h),E(u,u,h),P(h,f),P(l,a),C(a,c,a),C(c,u,f),T(f,a,c),E(a,a,c),P(u,a),E(c,h,l),C(a,c,st),T(a,a,h),C(c,c,a),C(a,h,l),C(h,u,s),P(u,f),_(a,u,r),_(c,h,r);for(i=0;i<16;i++)s[i+16]=a[i],s[i+32]=c[i],s[i+48]=u[i],s[i+64]=h[i];var p=s.subarray(32),d=s.subarray(16);return x(p,p),C(d,d,p),w(t,d),0}function U(t,e){return R(t,e,rt)}function M(t,e){return et(e,32),U(t,e)}function L(t,e,n){var r=new Uint8Array(32);return R(r,n,e),c(t,nt,r,lt)}function B(t,e,n,r,i,o){var s=new Uint8Array(32);return L(s,i,o),dt(t,e,n,r,s)}function I(t,e,n,r,i,o){var s=new Uint8Array(32);return L(s,i,o),yt(t,e,n,r,s)}function N(t,e,n,r){for(var i,o,s,a,u,c,h,f,l,p,d,y,g,v,b,m,_,w,S,A,k,T,E,C,P,x,O=new Int32Array(16),R=new Int32Array(16),U=t[0],M=t[1],L=t[2],B=t[3],I=t[4],N=t[5],D=t[6],Y=t[7],j=e[0],z=e[1],F=e[2],H=e[3],q=e[4],J=e[5],K=e[6],X=e[7],G=0;r>=128;){for(S=0;S<16;S++)A=8*S+G,O[S]=n[A+0]<<24|n[A+1]<<16|n[A+2]<<8|n[A+3],R[S]=n[A+4]<<24|n[A+5]<<16|n[A+6]<<8|n[A+7];for(S=0;S<80;S++)if(i=U,o=M,s=L,a=B,u=I,c=N,h=D,f=Y,l=j,p=z,d=F,y=H,g=q,v=J,b=K,m=X,k=Y,T=X,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=(I>>>14|q<<18)^(I>>>18|q<<14)^(q>>>9|I<<23),T=(q>>>14|I<<18)^(q>>>18|I<<14)^(I>>>9|q<<23),E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,k=I&N^~I&D,T=q&J^~q&K,E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,k=gt[2*S],T=gt[2*S+1],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,k=O[S%16],T=R[S%16],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,_=65535&P|x<<16,w=65535&E|C<<16,k=_,T=w,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=(U>>>28|j<<4)^(j>>>2|U<<30)^(j>>>7|U<<25),T=(j>>>28|U<<4)^(U>>>2|j<<30)^(U>>>7|j<<25),E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,k=U&M^U&L^M&L,T=j&z^j&F^z&F,E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,f=65535&P|x<<16,m=65535&E|C<<16,k=a,T=y,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=_,T=w,E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,a=65535&P|x<<16,y=65535&E|C<<16,M=i,L=o,B=s,I=a,N=u,D=c,Y=h,U=f,z=l,F=p,H=d,q=y,J=g,K=v,X=b,j=m,S%16===15)for(A=0;A<16;A++)k=O[A],T=R[A],E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=O[(A+9)%16],T=R[(A+9)%16],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,_=O[(A+1)%16],w=R[(A+1)%16],k=(_>>>1|w<<31)^(_>>>8|w<<24)^_>>>7,T=(w>>>1|_<<31)^(w>>>8|_<<24)^(w>>>7|_<<25),E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,_=O[(A+14)%16],w=R[(A+14)%16],k=(_>>>19|w<<13)^(w>>>29|_<<3)^_>>>6,T=(w>>>19|_<<13)^(_>>>29|w<<3)^(w>>>6|_<<26),E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,O[A]=65535&P|x<<16,R[A]=65535&E|C<<16;k=U,T=j,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=t[0],T=e[0],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,t[0]=U=65535&P|x<<16,e[0]=j=65535&E|C<<16,k=M,T=z,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=t[1],T=e[1],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,t[1]=M=65535&P|x<<16,e[1]=z=65535&E|C<<16,k=L,T=F,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=t[2],T=e[2],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,t[2]=L=65535&P|x<<16,e[2]=F=65535&E|C<<16,k=B,T=H,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=t[3],T=e[3],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,t[3]=B=65535&P|x<<16,e[3]=H=65535&E|C<<16,k=I,T=q,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=t[4],T=e[4],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,t[4]=I=65535&P|x<<16,e[4]=q=65535&E|C<<16,k=N,T=J,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=t[5],T=e[5],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,t[5]=N=65535&P|x<<16,e[5]=J=65535&E|C<<16,k=D,T=K,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=t[6],T=e[6],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,t[6]=D=65535&P|x<<16,e[6]=K=65535&E|C<<16,k=Y,T=X,E=65535&T,C=T>>>16,P=65535&k,x=k>>>16,k=t[7],T=e[7],E+=65535&T,C+=T>>>16,P+=65535&k,x+=k>>>16,C+=E>>>16,P+=C>>>16,x+=P>>>16,t[7]=Y=65535&P|x<<16,e[7]=X=65535&E|C<<16,G+=128,r-=128}return r}function D(t,n,r){var i,o=new Int32Array(8),s=new Int32Array(8),a=new Uint8Array(256),u=r;for(o[0]=1779033703,o[1]=3144134277,o[2]=1013904242,o[3]=2773480762,o[4]=1359893119,o[5]=2600822924,o[6]=528734635,o[7]=1541459225,s[0]=4089235720,s[1]=2227873595,s[2]=4271175723,s[3]=1595750129,s[4]=2917565137,s[5]=725511199,s[6]=4215389547,s[7]=327033209,N(o,s,n,r),r%=128,i=0;i<r;i++)a[i]=n[u-r+i];for(a[r]=128,r=256-128*(r<112?1:0),a[r-9]=0,e(a,r-8,u/536870912|0,u<<3),N(o,s,a,r),i=0;i<8;i++)e(t,8*i,o[i],s[i]);return 0}function Y(t,e){var n=tt(),r=tt(),i=tt(),o=tt(),s=tt(),a=tt(),u=tt(),c=tt(),h=tt();E(n,t[1],t[0]),E(h,e[1],e[0]),C(n,n,h),T(r,t[0],t[1]),T(h,e[0],e[1]),C(r,r,h),C(i,t[3],e[3]),C(i,i,ut),C(o,t[2],e[2]),T(o,o,o),E(s,r,n),E(a,o,i),T(u,o,i),T(c,r,n),C(t[0],s,a),C(t[1],c,u),C(t[2],u,a),
+C(t[3],s,c)}function j(t,e,n){var r;for(r=0;r<4;r++)_(t[r],e[r],n)}function z(t,e){var n=tt(),r=tt(),i=tt();x(i,e[2]),C(n,e[0],i),C(r,e[1],i),w(t,r),t[31]^=A(n)<<7}function F(t,e,n){var r,i;for(b(t[0],it),b(t[1],ot),b(t[2],ot),b(t[3],it),i=255;i>=0;--i)r=n[i/8|0]>>(7&i)&1,j(t,e,r),Y(e,t),Y(t,t),j(t,e,r)}function H(t,e){var n=[tt(),tt(),tt(),tt()];b(n[0],ct),b(n[1],ht),b(n[2],ot),C(n[3],ct,ht),F(t,n,e)}function q(t,e,n){var r,i=new Uint8Array(64),o=[tt(),tt(),tt(),tt()];for(n||et(e,32),D(i,e,32),i[0]&=248,i[31]&=127,i[31]|=64,H(o,i),z(t,o),r=0;r<32;r++)e[r+32]=t[r];return 0}function J(t,e){var n,r,i,o;for(r=63;r>=32;--r){for(n=0,i=r-32,o=r-12;i<o;++i)e[i]+=n-16*e[r]*vt[i-(r-32)],n=e[i]+128>>8,e[i]-=256*n;e[i]+=n,e[r]=0}for(n=0,i=0;i<32;i++)e[i]+=n-(e[31]>>4)*vt[i],n=e[i]>>8,e[i]&=255;for(i=0;i<32;i++)e[i]-=n*vt[i];for(r=0;r<32;r++)e[r+1]+=e[r]>>8,t[r]=255&e[r]}function K(t){var e,n=new Float64Array(64);for(e=0;e<64;e++)n[e]=t[e];for(e=0;e<64;e++)t[e]=0;J(t,n)}function X(t,e,n,r){var i,o,s=new Uint8Array(64),a=new Uint8Array(64),u=new Uint8Array(64),c=new Float64Array(64),h=[tt(),tt(),tt(),tt()];D(s,r,32),s[0]&=248,s[31]&=127,s[31]|=64;var f=n+64;for(i=0;i<n;i++)t[64+i]=e[i];for(i=0;i<32;i++)t[32+i]=s[32+i];for(D(u,t.subarray(32),n+32),K(u),H(h,u),z(t,h),i=32;i<64;i++)t[i]=r[i];for(D(a,t,n+64),K(a),i=0;i<64;i++)c[i]=0;for(i=0;i<32;i++)c[i]=u[i];for(i=0;i<32;i++)for(o=0;o<32;o++)c[i+o]+=a[i]*s[o];return J(t.subarray(32),c),f}function G(t,e){var n=tt(),r=tt(),i=tt(),o=tt(),s=tt(),a=tt(),u=tt();return b(t[2],ot),k(t[1],e),P(i,t[1]),C(o,i,at),E(i,i,t[2]),T(o,t[2],o),P(s,o),P(a,s),C(u,a,s),C(n,u,i),C(n,n,o),O(n,n),C(n,n,i),C(n,n,o),C(n,n,o),C(t[0],n,o),P(r,t[0]),C(r,r,o),S(r,i)&&C(t[0],t[0],ft),P(r,t[0]),C(r,r,o),S(r,i)?-1:(A(t[0])===e[31]>>7&&E(t[0],it,t[0]),C(t[3],t[0],t[1]),0)}function W(t,e,n,r){var i,s,a=new Uint8Array(32),u=new Uint8Array(64),c=[tt(),tt(),tt(),tt()],h=[tt(),tt(),tt(),tt()];if(s=-1,n<64)return-1;if(G(h,r))return-1;for(i=0;i<n;i++)t[i]=e[i];for(i=0;i<32;i++)t[i+32]=r[i];if(D(u,t,n),K(u),F(c,h,u),H(h,e.subarray(32)),Y(c,h),z(a,c),n-=64,o(e,0,a,0)){for(i=0;i<n;i++)t[i]=0;return-1}for(i=0;i<n;i++)t[i]=e[i+64];return s=n}function Z(t,e){if(t.length!==bt)throw new Error("bad key size");if(e.length!==mt)throw new Error("bad nonce size")}function V(t,e){if(t.length!==kt)throw new Error("bad public key size");if(e.length!==Tt)throw new Error("bad secret key size")}function Q(){for(var t=0;t<arguments.length;t++)if(!(arguments[t]instanceof Uint8Array))throw new TypeError("unexpected type, use Uint8Array")}function $(t){for(var e=0;e<t.length;e++)t[e]=0}var tt=function(t){var e,n=new Float64Array(16);if(t)for(e=0;e<t.length;e++)n[e]=t[e];return n},et=function(){throw new Error("no PRNG")},nt=new Uint8Array(16),rt=new Uint8Array(32);rt[0]=9;var it=tt(),ot=tt([1]),st=tt([56129,1]),at=tt([30883,4953,19914,30187,55467,16705,2637,112,59544,30585,16505,36039,65139,11119,27886,20995]),ut=tt([61785,9906,39828,60374,45398,33411,5274,224,53552,61171,33010,6542,64743,22239,55772,9222]),ct=tt([54554,36645,11616,51542,42930,38181,51040,26924,56412,64982,57905,49316,21502,52590,14035,8553]),ht=tt([26200,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214,26214]),ft=tt([41136,18958,6951,50414,58488,44335,6150,12099,55207,15867,153,11085,57099,20417,9344,11139]),lt=new Uint8Array([101,120,112,97,110,100,32,51,50,45,98,121,116,101,32,107]),pt=function(t){this.buffer=new Uint8Array(16),this.r=new Uint16Array(10),this.h=new Uint16Array(10),this.pad=new Uint16Array(8),this.leftover=0,this.fin=0;var e,n,r,i,o,s,a,u;e=255&t[0]|(255&t[1])<<8,this.r[0]=8191&e,n=255&t[2]|(255&t[3])<<8,this.r[1]=8191&(e>>>13|n<<3),r=255&t[4]|(255&t[5])<<8,this.r[2]=7939&(n>>>10|r<<6),i=255&t[6]|(255&t[7])<<8,this.r[3]=8191&(r>>>7|i<<9),o=255&t[8]|(255&t[9])<<8,this.r[4]=255&(i>>>4|o<<12),this.r[5]=o>>>1&8190,s=255&t[10]|(255&t[11])<<8,this.r[6]=8191&(o>>>14|s<<2),a=255&t[12]|(255&t[13])<<8,this.r[7]=8065&(s>>>11|a<<5),u=255&t[14]|(255&t[15])<<8,this.r[8]=8191&(a>>>8|u<<8),this.r[9]=u>>>5&127,this.pad[0]=255&t[16]|(255&t[17])<<8,this.pad[1]=255&t[18]|(255&t[19])<<8,this.pad[2]=255&t[20]|(255&t[21])<<8,this.pad[3]=255&t[22]|(255&t[23])<<8,this.pad[4]=255&t[24]|(255&t[25])<<8,this.pad[5]=255&t[26]|(255&t[27])<<8,this.pad[6]=255&t[28]|(255&t[29])<<8,this.pad[7]=255&t[30]|(255&t[31])<<8};pt.prototype.blocks=function(t,e,n){for(var r,i,o,s,a,u,c,h,f,l,p,d,y,g,v,b,m,_,w,S=this.fin?0:2048,A=this.h[0],k=this.h[1],T=this.h[2],E=this.h[3],C=this.h[4],P=this.h[5],x=this.h[6],O=this.h[7],R=this.h[8],U=this.h[9],M=this.r[0],L=this.r[1],B=this.r[2],I=this.r[3],N=this.r[4],D=this.r[5],Y=this.r[6],j=this.r[7],z=this.r[8],F=this.r[9];n>=16;)r=255&t[e+0]|(255&t[e+1])<<8,A+=8191&r,i=255&t[e+2]|(255&t[e+3])<<8,k+=8191&(r>>>13|i<<3),o=255&t[e+4]|(255&t[e+5])<<8,T+=8191&(i>>>10|o<<6),s=255&t[e+6]|(255&t[e+7])<<8,E+=8191&(o>>>7|s<<9),a=255&t[e+8]|(255&t[e+9])<<8,C+=8191&(s>>>4|a<<12),P+=a>>>1&8191,u=255&t[e+10]|(255&t[e+11])<<8,x+=8191&(a>>>14|u<<2),c=255&t[e+12]|(255&t[e+13])<<8,O+=8191&(u>>>11|c<<5),h=255&t[e+14]|(255&t[e+15])<<8,R+=8191&(c>>>8|h<<8),U+=h>>>5|S,f=0,l=f,l+=A*M,l+=k*(5*F),l+=T*(5*z),l+=E*(5*j),l+=C*(5*Y),f=l>>>13,l&=8191,l+=P*(5*D),l+=x*(5*N),l+=O*(5*I),l+=R*(5*B),l+=U*(5*L),f+=l>>>13,l&=8191,p=f,p+=A*L,p+=k*M,p+=T*(5*F),p+=E*(5*z),p+=C*(5*j),f=p>>>13,p&=8191,p+=P*(5*Y),p+=x*(5*D),p+=O*(5*N),p+=R*(5*I),p+=U*(5*B),f+=p>>>13,p&=8191,d=f,d+=A*B,d+=k*L,d+=T*M,d+=E*(5*F),d+=C*(5*z),f=d>>>13,d&=8191,d+=P*(5*j),d+=x*(5*Y),d+=O*(5*D),d+=R*(5*N),d+=U*(5*I),f+=d>>>13,d&=8191,y=f,y+=A*I,y+=k*B,y+=T*L,y+=E*M,y+=C*(5*F),f=y>>>13,y&=8191,y+=P*(5*z),y+=x*(5*j),y+=O*(5*Y),y+=R*(5*D),y+=U*(5*N),f+=y>>>13,y&=8191,g=f,g+=A*N,g+=k*I,g+=T*B,g+=E*L,g+=C*M,f=g>>>13,g&=8191,g+=P*(5*F),g+=x*(5*z),g+=O*(5*j),g+=R*(5*Y),g+=U*(5*D),f+=g>>>13,g&=8191,v=f,v+=A*D,v+=k*N,v+=T*I,v+=E*B,v+=C*L,f=v>>>13,v&=8191,v+=P*M,v+=x*(5*F),v+=O*(5*z),v+=R*(5*j),v+=U*(5*Y),f+=v>>>13,v&=8191,b=f,b+=A*Y,b+=k*D,b+=T*N,b+=E*I,b+=C*B,f=b>>>13,b&=8191,b+=P*L,b+=x*M,b+=O*(5*F),b+=R*(5*z),b+=U*(5*j),f+=b>>>13,b&=8191,m=f,m+=A*j,m+=k*Y,m+=T*D,m+=E*N,m+=C*I,f=m>>>13,m&=8191,m+=P*B,m+=x*L,m+=O*M,m+=R*(5*F),m+=U*(5*z),f+=m>>>13,m&=8191,_=f,_+=A*z,_+=k*j,_+=T*Y,_+=E*D,_+=C*N,f=_>>>13,_&=8191,_+=P*I,_+=x*B,_+=O*L,_+=R*M,_+=U*(5*F),f+=_>>>13,_&=8191,w=f,w+=A*F,w+=k*z,w+=T*j,w+=E*Y,w+=C*D,f=w>>>13,w&=8191,w+=P*N,w+=x*I,w+=O*B,w+=R*L,w+=U*M,f+=w>>>13,w&=8191,f=(f<<2)+f|0,f=f+l|0,l=8191&f,f>>>=13,p+=f,A=l,k=p,T=d,E=y,C=g,P=v,x=b,O=m,R=_,U=w,e+=16,n-=16;this.h[0]=A,this.h[1]=k,this.h[2]=T,this.h[3]=E,this.h[4]=C,this.h[5]=P,this.h[6]=x,this.h[7]=O,this.h[8]=R,this.h[9]=U},pt.prototype.finish=function(t,e){var n,r,i,o,s=new Uint16Array(10);if(this.leftover){for(o=this.leftover,this.buffer[o++]=1;o<16;o++)this.buffer[o]=0;this.fin=1,this.blocks(this.buffer,0,16)}for(n=this.h[1]>>>13,this.h[1]&=8191,o=2;o<10;o++)this.h[o]+=n,n=this.h[o]>>>13,this.h[o]&=8191;for(this.h[0]+=5*n,n=this.h[0]>>>13,this.h[0]&=8191,this.h[1]+=n,n=this.h[1]>>>13,this.h[1]&=8191,this.h[2]+=n,s[0]=this.h[0]+5,n=s[0]>>>13,s[0]&=8191,o=1;o<10;o++)s[o]=this.h[o]+n,n=s[o]>>>13,s[o]&=8191;for(s[9]-=8192,r=(1^n)-1,o=0;o<10;o++)s[o]&=r;for(r=~r,o=0;o<10;o++)this.h[o]=this.h[o]&r|s[o];for(this.h[0]=65535&(this.h[0]|this.h[1]<<13),this.h[1]=65535&(this.h[1]>>>3|this.h[2]<<10),this.h[2]=65535&(this.h[2]>>>6|this.h[3]<<7),this.h[3]=65535&(this.h[3]>>>9|this.h[4]<<4),this.h[4]=65535&(this.h[4]>>>12|this.h[5]<<1|this.h[6]<<14),this.h[5]=65535&(this.h[6]>>>2|this.h[7]<<11),this.h[6]=65535&(this.h[7]>>>5|this.h[8]<<8),this.h[7]=65535&(this.h[8]>>>8|this.h[9]<<5),i=this.h[0]+this.pad[0],this.h[0]=65535&i,o=1;o<8;o++)i=(this.h[o]+this.pad[o]|0)+(i>>>16)|0,this.h[o]=65535&i;t[e+0]=this.h[0]>>>0&255,t[e+1]=this.h[0]>>>8&255,t[e+2]=this.h[1]>>>0&255,t[e+3]=this.h[1]>>>8&255,t[e+4]=this.h[2]>>>0&255,t[e+5]=this.h[2]>>>8&255,t[e+6]=this.h[3]>>>0&255,t[e+7]=this.h[3]>>>8&255,t[e+8]=this.h[4]>>>0&255,t[e+9]=this.h[4]>>>8&255,t[e+10]=this.h[5]>>>0&255,t[e+11]=this.h[5]>>>8&255,t[e+12]=this.h[6]>>>0&255,t[e+13]=this.h[6]>>>8&255,t[e+14]=this.h[7]>>>0&255,t[e+15]=this.h[7]>>>8&255},pt.prototype.update=function(t,e,n){var r,i;if(this.leftover){for(i=16-this.leftover,i>n&&(i=n),r=0;r<i;r++)this.buffer[this.leftover+r]=t[e+r];if(n-=i,e+=i,this.leftover+=i,this.leftover<16)return;this.blocks(this.buffer,0,16),this.leftover=0}if(n>=16&&(i=n-n%16,this.blocks(t,e,i),e+=i,n-=i),n){for(r=0;r<n;r++)this.buffer[this.leftover+r]=t[e+r];this.leftover+=n}};var dt=g,yt=v,gt=[1116352408,3609767458,1899447441,602891725,3049323471,3964484399,3921009573,2173295548,961987163,4081628472,1508970993,3053834265,2453635748,2937671579,2870763221,3664609560,3624381080,2734883394,310598401,1164996542,607225278,1323610764,1426881987,3590304994,1925078388,4068182383,2162078206,991336113,2614888103,633803317,3248222580,3479774868,3835390401,2666613458,4022224774,944711139,264347078,2341262773,604807628,2007800933,770255983,1495990901,1249150122,1856431235,1555081692,3175218132,1996064986,2198950837,2554220882,3999719339,2821834349,766784016,2952996808,2566594879,3210313671,3203337956,3336571891,1034457026,3584528711,2466948901,113926993,3758326383,338241895,168717936,666307205,1188179964,773529912,1546045734,1294757372,1522805485,1396182291,2643833823,1695183700,2343527390,1986661051,1014477480,2177026350,1206759142,2456956037,344077627,2730485921,1290863460,2820302411,3158454273,3259730800,3505952657,3345764771,106217008,3516065817,3606008344,3600352804,1432725776,4094571909,1467031594,275423344,851169720,430227734,3100823752,506948616,1363258195,659060556,3750685593,883997877,3785050280,958139571,3318307427,1322822218,3812723403,1537002063,2003034995,1747873779,3602036899,1955562222,1575990012,2024104815,1125592928,2227730452,2716904306,2361852424,442776044,2428436474,593698344,2756734187,3733110249,3204031479,2999351573,3329325298,3815920427,3391569614,3928383900,3515267271,566280711,3940187606,3454069534,4118630271,4000239992,116418474,1914138554,174292421,2731055270,289380356,3203993006,460393269,320620315,685471733,587496836,852142971,1086792851,1017036298,365543100,1126000580,2618297676,1288033470,3409855158,1501505948,4234509866,1607167915,987167468,1816402316,1246189591],vt=new Float64Array([237,211,245,92,26,99,18,88,214,156,247,162,222,249,222,20,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,16]),bt=32,mt=24,_t=32,wt=16,St=32,At=32,kt=32,Tt=32,Et=32,Ct=mt,Pt=_t,xt=wt,Ot=64,Rt=32,Ut=64,Mt=32,Lt=64;t.lowlevel={crypto_core_hsalsa20:c,crypto_stream_xor:p,crypto_stream:l,crypto_stream_salsa20_xor:h,crypto_stream_salsa20:f,crypto_onetimeauth:d,crypto_onetimeauth_verify:y,crypto_verify_16:i,crypto_verify_32:o,crypto_secretbox:g,crypto_secretbox_open:v,crypto_scalarmult:R,crypto_scalarmult_base:U,crypto_box_beforenm:L,crypto_box_afternm:dt,crypto_box:B,crypto_box_open:I,crypto_box_keypair:M,crypto_hash:D,crypto_sign:X,crypto_sign_keypair:q,crypto_sign_open:W,crypto_secretbox_KEYBYTES:bt,crypto_secretbox_NONCEBYTES:mt,crypto_secretbox_ZEROBYTES:_t,crypto_secretbox_BOXZEROBYTES:wt,crypto_scalarmult_BYTES:St,crypto_scalarmult_SCALARBYTES:At,crypto_box_PUBLICKEYBYTES:kt,crypto_box_SECRETKEYBYTES:Tt,crypto_box_BEFORENMBYTES:Et,crypto_box_NONCEBYTES:Ct,crypto_box_ZEROBYTES:Pt,crypto_box_BOXZEROBYTES:xt,crypto_sign_BYTES:Ot,crypto_sign_PUBLICKEYBYTES:Rt,crypto_sign_SECRETKEYBYTES:Ut,crypto_sign_SEEDBYTES:Mt,crypto_hash_BYTES:Lt},t.randomBytes=function(t){var e=new Uint8Array(t);return et(e,t),e},t.secretbox=function(t,e,n){Q(t,e,n),Z(n,e);for(var r=new Uint8Array(_t+t.length),i=new Uint8Array(r.length),o=0;o<t.length;o++)r[o+_t]=t[o];return g(i,r,r.length,e,n),i.subarray(wt)},t.secretbox.open=function(t,e,n){Q(t,e,n),Z(n,e);for(var r=new Uint8Array(wt+t.length),i=new Uint8Array(r.length),o=0;o<t.length;o++)r[o+wt]=t[o];return r.length<32?null:0!==v(i,r,r.length,e,n)?null:i.subarray(_t)},t.secretbox.keyLength=bt,t.secretbox.nonceLength=mt,t.secretbox.overheadLength=wt,t.scalarMult=function(t,e){if(Q(t,e),t.length!==At)throw new Error("bad n size");if(e.length!==St)throw new Error("bad p size");var n=new Uint8Array(St);return R(n,t,e),n},t.scalarMult.base=function(t){if(Q(t),t.length!==At)throw new Error("bad n size");var e=new Uint8Array(St);return U(e,t),e},t.scalarMult.scalarLength=At,t.scalarMult.groupElementLength=St,t.box=function(e,n,r,i){var o=t.box.before(r,i);return t.secretbox(e,n,o)},t.box.before=function(t,e){Q(t,e),V(t,e);var n=new Uint8Array(Et);return L(n,t,e),n},t.box.after=t.secretbox,t.box.open=function(e,n,r,i){var o=t.box.before(r,i);return t.secretbox.open(e,n,o)},t.box.open.after=t.secretbox.open,t.box.keyPair=function(){var t=new Uint8Array(kt),e=new Uint8Array(Tt);return M(t,e),{publicKey:t,secretKey:e}},t.box.keyPair.fromSecretKey=function(t){if(Q(t),t.length!==Tt)throw new Error("bad secret key size");var e=new Uint8Array(kt);return U(e,t),{publicKey:e,secretKey:new Uint8Array(t)}},t.box.publicKeyLength=kt,t.box.secretKeyLength=Tt,t.box.sharedKeyLength=Et,t.box.nonceLength=Ct,t.box.overheadLength=t.secretbox.overheadLength,t.sign=function(t,e){if(Q(t,e),e.length!==Ut)throw new Error("bad secret key size");var n=new Uint8Array(Ot+t.length);return X(n,t,t.length,e),n},t.sign.open=function(t,e){if(Q(t,e),e.length!==Rt)throw new Error("bad public key size");var n=new Uint8Array(t.length),r=W(n,t,t.length,e);if(r<0)return null;for(var i=new Uint8Array(r),o=0;o<i.length;o++)i[o]=n[o];return i},t.sign.detached=function(e,n){for(var r=t.sign(e,n),i=new Uint8Array(Ot),o=0;o<i.length;o++)i[o]=r[o];return i},t.sign.detached.verify=function(t,e,n){if(Q(t,e,n),e.length!==Ot)throw new Error("bad signature size");if(n.length!==Rt)throw new Error("bad public key size");var r,i=new Uint8Array(Ot+t.length),o=new Uint8Array(Ot+t.length);for(r=0;r<Ot;r++)i[r]=e[r];for(r=0;r<t.length;r++)i[r+Ot]=t[r];return W(o,i,i.length,n)>=0},t.sign.keyPair=function(){var t=new Uint8Array(Rt),e=new Uint8Array(Ut);return q(t,e),{publicKey:t,secretKey:e}},t.sign.keyPair.fromSecretKey=function(t){if(Q(t),t.length!==Ut)throw new Error("bad secret key size");for(var e=new Uint8Array(Rt),n=0;n<e.length;n++)e[n]=t[32+n];return{publicKey:e,secretKey:new Uint8Array(t)}},t.sign.keyPair.fromSeed=function(t){if(Q(t),t.length!==Mt)throw new Error("bad seed size");for(var e=new Uint8Array(Rt),n=new Uint8Array(Ut),r=0;r<32;r++)n[r]=t[r];return q(e,n,!0),{publicKey:e,secretKey:n}},t.sign.publicKeyLength=Rt,t.sign.secretKeyLength=Ut,t.sign.seedLength=Mt,t.sign.signatureLength=Ot,t.hash=function(t){Q(t);var e=new Uint8Array(Lt);return D(e,t,t.length),e},t.hash.hashLength=Lt,t.verify=function(t,e){return Q(t,e),0!==t.length&&0!==e.length&&(t.length===e.length&&0===r(t,0,e,0,t.length))},t.setPRNG=function(t){et=t},function(){var e="undefined"!=typeof self?self.crypto||self.msCrypto:null;if(e&&e.getRandomValues){var r=65536;t.setPRNG(function(t,n){var i,o=new Uint8Array(n);for(i=0;i<n;i+=r)e.getRandomValues(o.subarray(i,i+Math.min(n-i,r)));for(i=0;i<n;i++)t[i]=o[i];$(o)})}else e=n(48),e&&e.randomBytes&&t.setPRNG(function(t,n){var r,i=e.randomBytes(n);for(r=0;r<n;r++)t[r]=i[r];$(i)})}()}("undefined"!=typeof t&&t.exports?t.exports:self.nacl=self.nacl||{})},function(t,e){},function(t,e,n){(function(e){!function(e,n){"use strict";"undefined"!=typeof t&&t.exports?t.exports=n():e.nacl?e.nacl.util=n():(e.nacl={},e.nacl.util=n())}(this,function(){"use strict";function t(t){if(!/^(?:[A-Za-z0-9+\/]{4})*(?:[A-Za-z0-9+\/]{2}==|[A-Za-z0-9+\/]{3}=)?$/.test(t))throw new TypeError("invalid encoding")}var n={};return n.decodeUTF8=function(t){if("string"!=typeof t)throw new TypeError("expected string");var e,n=unescape(encodeURIComponent(t)),r=new Uint8Array(n.length);for(e=0;e<n.length;e++)r[e]=n.charCodeAt(e);return r},n.encodeUTF8=function(t){var e,n=[];for(e=0;e<t.length;e++)n.push(String.fromCharCode(t[e]));return decodeURIComponent(escape(n.join("")))},"undefined"==typeof atob?"undefined"!=typeof e.from?(n.encodeBase64=function(t){return e.from(t).toString("base64")},n.decodeBase64=function(n){return t(n),new Uint8Array(Array.prototype.slice.call(e.from(n,"base64"),0))}):(n.encodeBase64=function(t){return new e(t).toString("base64")},n.decodeBase64=function(n){return t(n),new Uint8Array(Array.prototype.slice.call(new e(n,"base64"),0))}):(n.encodeBase64=function(t){var e,n=[],r=t.length;for(e=0;e<r;e++)n.push(String.fromCharCode(t[e]));return btoa(n.join(""))},n.decodeBase64=function(e){t(e);var n,r=atob(e),i=new Uint8Array(r.length);for(n=0;n<r.length;n++)i[n]=r.charCodeAt(n);return i}),n})}).call(e,n(50).Buffer)},function(t,e,n){/*!
 	 * The buffer module from node.js, for the browser.
 	 *
 	 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
diff --git a/package.json b/package.json
index f8007879d..ae63b6ac2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pusher-js",
-  "version": "4.3.1",
+  "version": "4.4.0",
   "description": "Pusher JavaScript library for browsers, React Native, NodeJS and web workers",
   "main": "dist/node/pusher.js",
   "browser": "dist/web/pusher.js",
diff --git a/spec/javascripts/unit/core/channels/channel_spec.js b/spec/javascripts/unit/core/channels/channel_spec.js
index 037474a3b..7bf8b1443 100644
--- a/spec/javascripts/unit/core/channels/channel_spec.js
+++ b/spec/javascripts/unit/core/channels/channel_spec.js
@@ -35,6 +35,9 @@ describe("Channel", function() {
   });
 
   describe("#trigger", function() {
+    beforeEach(function() {
+      channel.subscribed = true;
+    });
     it("should raise an exception if the event name does not start with client-", function() {
       expect(function() {
         channel.trigger("whatever", {});
@@ -60,7 +63,9 @@ describe("Channel", function() {
 
   describe("#disconnect", function() {
     it("should set subscribed to false", function() {
-      channel.handleEvent("pusher_internal:subscription_succeeded");
+      channel.handleEvent({
+        event: "pusher_internal:subscription_succeeded"
+      });
       channel.disconnect();
       expect(channel.subscribed).toEqual(false);
     });
@@ -80,7 +85,9 @@ describe("Channel", function() {
       channel.bind("pusher_internal:test", callback);
       channel.bind_global(callback);
 
-      channel.handleEvent("pusher_internal:test");
+      channel.handleEvent({
+        event: "pusher_internal:test"
+      });
 
       expect(callback).not.toHaveBeenCalled();
     });
@@ -90,19 +97,28 @@ describe("Channel", function() {
         var callback = jasmine.createSpy("callback");
         channel.bind("pusher:subscription_succeeded", callback);
 
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
 
         expect(callback).toHaveBeenCalledWith("123");
       });
 
       it("should set #subscribed to true", function() {
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
 
         expect(channel.subscribed).toEqual(true);
       });
 
       it("should set #subscriptionPending to false", function() {
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
 
         expect(channel.subscriptionPending).toEqual(false);
       });
@@ -114,21 +130,30 @@ describe("Channel", function() {
         channel.bind("pusher:subscription_succeeded", callback);
 
         channel.cancelSubscription();
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
 
         expect(callback).not.toHaveBeenCalled();
       });
 
       it("should set #subscribed to true", function() {
         channel.cancelSubscription();
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
 
         expect(channel.subscribed).toEqual(true);
       });
 
       it("should set #subscriptionPending to false", function() {
         channel.cancelSubscription();
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
 
         expect(channel.subscriptionPending).toEqual(false);
       });
@@ -137,7 +162,10 @@ describe("Channel", function() {
         expect(pusher.unsubscribe).not.toHaveBeenCalled();
 
         channel.cancelSubscription();
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
 
         expect(pusher.unsubscribe).toHaveBeenCalledWith(channel.name);
       });
@@ -148,18 +176,24 @@ describe("Channel", function() {
         var callback = jasmine.createSpy("callback");
         channel.bind("something", callback);
 
-        channel.handleEvent("something", 9);
+        channel.handleEvent({
+          event: "something",
+          data: 9
+        });
 
-        expect(callback).toHaveBeenCalledWith(9);
+        expect(callback).toHaveBeenCalledWith(9, {});
       });
 
       it("should emit the event even if it's named like JS built-in", function() {
         var callback = jasmine.createSpy("callback");
         channel.bind("toString", callback);
 
-        channel.handleEvent("toString", "works");
+        channel.handleEvent({
+          event: "toString",
+          data: "works"
+        });
 
-        expect(callback).toHaveBeenCalledWith("works");
+        expect(callback).toHaveBeenCalledWith("works", {});
       });
     });
   });
@@ -194,7 +228,7 @@ describe("Channel", function() {
 
       expect(pusher.send_event).toHaveBeenCalledWith(
         "pusher:subscribe",
-        { auth: "one", channel_data: "two", channel: "test" }
+        { auth: "one", channel_data: "two", channel: "test" },
       );
     });
 
diff --git a/spec/javascripts/unit/core/channels/encrypted_channel_spec.js b/spec/javascripts/unit/core/channels/encrypted_channel_spec.js
index dde0fe80e..3e24a6e3b 100644
--- a/spec/javascripts/unit/core/channels/encrypted_channel_spec.js
+++ b/spec/javascripts/unit/core/channels/encrypted_channel_spec.js
@@ -113,7 +113,9 @@ describe("EncryptedChannel", function() {
 
   describe("#disconnect", function() {
     it("should set subscribed to false", function() {
-      channel.handleEvent("pusher_internal:subscription_succeeded");
+      channel.handleEvent({
+        event: "pusher_internal:subscription_succeeded"
+      });
       channel.disconnect();
       expect(channel.subscribed).toEqual(false);
     });
@@ -125,7 +127,9 @@ describe("EncryptedChannel", function() {
       channel.bind("pusher_internal:test", callback);
       channel.bind_global(callback);
 
-      channel.handleEvent("pusher_internal:test");
+      channel.handleEvent({
+        event: "pusher_internal:test"
+      });
 
       expect(callback).not.toHaveBeenCalled();
     });
@@ -134,17 +138,26 @@ describe("EncryptedChannel", function() {
       it("should emit pusher:subscription_succeeded", function() {
         let callback = jasmine.createSpy("callback");
         channel.bind("pusher:subscription_succeeded", callback);
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
         expect(callback).toHaveBeenCalledWith("123");
       });
 
       it("should set #subscribed to true", function() {
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
         expect(channel.subscribed).toEqual(true);
       });
 
       it("should set #subscriptionPending to false", function() {
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
         expect(channel.subscriptionPending).toEqual(false);
       });
     });
@@ -154,26 +167,38 @@ describe("EncryptedChannel", function() {
         let callback = jasmine.createSpy("callback");
         channel.bind("pusher:subscription_succeeded", callback);
         channel.cancelSubscription();
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
         expect(callback).not.toHaveBeenCalled();
       });
 
       it("should set #subscribed to true", function() {
         channel.cancelSubscription();
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
         expect(channel.subscribed).toEqual(true);
       });
 
       it("should set #subscriptionPending to false", function() {
         channel.cancelSubscription();
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
         expect(channel.subscriptionPending).toEqual(false);
       });
 
       it("should call #pusher.unsubscribe", function() {
         expect(pusher.unsubscribe).not.toHaveBeenCalled();
         channel.cancelSubscription();
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
         expect(pusher.unsubscribe).toHaveBeenCalledWith(channel.name);
       });
     });
@@ -197,15 +222,21 @@ describe("EncryptedChannel", function() {
         };
         let boundCallback = jasmine.createSpy("boundCallback");
         channel.bind("something", boundCallback);
-        channel.handleEvent("something", encryptedPayload);
+        channel.handleEvent({
+          event: "something",
+          data: encryptedPayload
+        });
         expect(boundCallback).toHaveBeenCalledWith(payload);
       });
       it("should emit pusher: prefixed events unmodified", function() {
         let payload = { test: "payload" };
         let boundCallback = jasmine.createSpy("boundCallback");
         channel.bind("pusher:subscription_error", boundCallback);
-        channel.handleEvent("pusher:subscription_error", payload);
-        expect(boundCallback).toHaveBeenCalledWith(payload);
+        channel.handleEvent({
+          event: "pusher:subscription_error",
+          data: payload
+        });
+        expect(boundCallback).toHaveBeenCalledWith(payload, {});
       });
 
       describe("with rotated shared key", function() {
@@ -233,7 +264,10 @@ describe("EncryptedChannel", function() {
           };
           let boundCallback = jasmine.createSpy("boundCallback");
           channel.bind("something", boundCallback);
-          channel.handleEvent("something", encryptedPayload);
+          channel.handleEvent({
+            event: "something",
+            data: encryptedPayload
+          });
           authorizer._callback(false, {
             shared_secret: newSecretBase64,
             foo: "bar"
@@ -246,7 +280,10 @@ describe("EncryptedChannel", function() {
             ciphertext: tweetNaclUtil.encodeBase64('garbage-ciphertext')
           };
           spyOn(Logger, "warn");
-          channel.handleEvent("something", encryptedPayload);
+          channel.handleEvent({
+            event: "something",
+            data: encryptedPayload
+          });
           authorizer._callback(false, {
             shared_secret: newSecretBase64,
             foo: "bar"
@@ -262,7 +299,10 @@ describe("EncryptedChannel", function() {
             ciphertext: newTestEncrypt(payload)
           };
           spyOn(Logger, "warn");
-          channel.handleEvent("something", encryptedPayload);
+          channel.handleEvent({
+            event: "something",
+            data: encryptedPayload
+          });
           authorizer._callback(true, "ERROR");
           expect(Logger.warn).toHaveBeenCalledWith(
             "Failed to make a request to the authEndpoint: ERROR. Unable to fetch new key, so dropping encrypted event"
diff --git a/spec/javascripts/unit/core/channels/presence_channel_spec.js b/spec/javascripts/unit/core/channels/presence_channel_spec.js
index 435770067..3361a6539 100644
--- a/spec/javascripts/unit/core/channels/presence_channel_spec.js
+++ b/spec/javascripts/unit/core/channels/presence_channel_spec.js
@@ -89,6 +89,9 @@ describe("PresenceChannel", function() {
   });
 
   describe("#trigger", function() {
+    beforeEach(function() {
+      channel.subscribed = true;
+    });
     it("should raise an exception if the event name does not start with client-", function() {
       expect(function() {
         channel.trigger("whatever", {});
@@ -131,7 +134,7 @@ describe("PresenceChannel", function() {
         channel.bind("pusher_internal:test", callback);
         channel.bind_global(callback);
 
-        channel.handleEvent("pusher_internal:test");
+        channel.handleEvent({event: "pusher_internal:test"});
 
         expect(callback).not.toHaveBeenCalled();
       });
@@ -141,10 +144,13 @@ describe("PresenceChannel", function() {
           var callback = jasmine.createSpy("callback");
           channel.bind("pusher:subscription_succeeded", callback);
 
-          channel.handleEvent("pusher_internal:subscription_succeeded", {
-            presence: {
-              hash: { "U": "me" },
-              count: 1
+          channel.handleEvent({
+            event: "pusher_internal:subscription_succeeded",
+            data: {
+              presence: {
+                hash: { "U": "me" },
+                count: 1
+              }
             }
           });
 
@@ -152,10 +158,13 @@ describe("PresenceChannel", function() {
         });
 
         it("should set #subscribed to true", function() {
-          channel.handleEvent("pusher_internal:subscription_succeeded", {
-            presence: {
-              hash: { "U": "me" },
-              count: 1
+          channel.handleEvent({
+            event: "pusher_internal:subscription_succeeded",
+            data: {
+              presence: {
+                hash: { "U": "me" },
+                count: 1
+              }
             }
           });
 
@@ -163,10 +172,13 @@ describe("PresenceChannel", function() {
         });
 
         it("should set #subscriptionPending to false", function() {
-          channel.handleEvent("pusher_internal:subscription_succeeded", {
-            presence: {
-              hash: { "U": "me" },
-              count: 1
+          channel.handleEvent({
+            event: "pusher_internal:subscription_succeeded",
+            data: {
+              presence: {
+                hash: { "U": "me" },
+                count: 1
+              }
             }
           });
 
@@ -180,21 +192,30 @@ describe("PresenceChannel", function() {
           channel.bind("pusher:subscription_succeeded", callback);
 
           channel.cancelSubscription();
-          channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+          channel.handleEvent({
+            event: "pusher_internal:subscription_succeeded",
+            data: "123"
+          });
 
           expect(callback).not.toHaveBeenCalled();
         });
 
         it("should set #subscribed to true", function() {
           channel.cancelSubscription();
-          channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+          channel.handleEvent({
+            event: "pusher_internal:subscription_succeeded",
+            data: "123"
+          });
 
           expect(channel.subscribed).toEqual(true);
         });
 
         it("should set #subscriptionPending to false", function() {
           channel.cancelSubscription();
-          channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+          channel.handleEvent({
+            event: "pusher_internal:subscription_succeeded",
+            data: "123"
+          });
 
           expect(channel.subscriptionPending).toEqual(false);
         });
@@ -203,7 +224,10 @@ describe("PresenceChannel", function() {
           expect(pusher.unsubscribe).not.toHaveBeenCalled();
 
           channel.cancelSubscription();
-          channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+          channel.handleEvent({
+            event: "pusher_internal:subscription_succeeded",
+            data: "123"
+          });
 
           expect(pusher.unsubscribe).toHaveBeenCalledWith(channel.name);
         });
@@ -214,9 +238,23 @@ describe("PresenceChannel", function() {
           var callback = jasmine.createSpy("callback");
           channel.bind("something", callback);
 
-          channel.handleEvent("something", 9);
+          channel.handleEvent({
+            event: "something",
+            data: 9
+          });
 
-          expect(callback).toHaveBeenCalledWith(9);
+          expect(callback).toHaveBeenCalledWith(9, {});
+        });
+        it("should emit metadata with user_id", function() {
+          var callback = jasmine.createSpy("callback");
+          channel.bind("client-something", callback);
+
+          channel.handleEvent({
+            event: "client-something",
+            data: 9,
+            user_id: "abc-def"
+          });
+          expect(callback).toHaveBeenCalledWith(9, {user_id: "abc-def"});
         });
       });
     });
@@ -227,14 +265,17 @@ describe("PresenceChannel", function() {
       beforeEach(function() {
         var callback = jasmine.createSpy("callback");
         channel.bind("pusher:subscription_succeeded", callback);
-        channel.handleEvent("pusher_internal:subscription_succeeded", {
-          presence: {
-            hash: {
-              "A": "user A",
-              "B": "user B",
-              "U": "me"
-            },
-            count: 3
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: {
+            presence: {
+              hash: {
+                "A": "user A",
+                "B": "user B",
+                "U": "me"
+              },
+              count: 3
+            }
           }
         });
         members = callback.calls[0].args[0];
@@ -264,18 +305,24 @@ describe("PresenceChannel", function() {
 
       describe("on pusher_internal:member_added", function() {
         it("should add a new member", function() {
-          channel.handleEvent("pusher_internal:member_added", {
-            user_id: "C",
-            user_info: "user C"
+          channel.handleEvent({
+            event: "pusher_internal:member_added",
+            data: {
+              user_id: "C",
+              user_info: "user C"
+            }
           });
 
           expect(members.get("C")).toEqual({ id: "C", info: "user C"});
         });
 
         it("should increment member count after adding a new member", function() {
-          channel.handleEvent("pusher_internal:member_added", {
-            user_id: "C",
-            user_info: "user C"
+          channel.handleEvent({
+            event: "pusher_internal:member_added",
+            data: {
+              user_id: "C",
+              user_info: "user C"
+            }
           });
 
           expect(members.count).toEqual(4);
@@ -285,27 +332,36 @@ describe("PresenceChannel", function() {
           var callback = jasmine.createSpy("callback");
           channel.bind("pusher:member_added", callback);
 
-          channel.handleEvent("pusher_internal:member_added", {
-            user_id: "C",
-            user_info: "user C"
+          channel.handleEvent({
+            event: "pusher_internal:member_added",
+            data: {
+              user_id: "C",
+              user_info: "user C"
+            }
           });
 
           expect(callback).toHaveBeenCalledWith({ id: "C", info: "user C" });
         });
 
         it("should update an existing member", function() {
-          channel.handleEvent("pusher_internal:member_added", {
-            user_id: "B",
-            user_info: "updated B"
+          channel.handleEvent({
+            event: "pusher_internal:member_added",
+            data: {
+              user_id: "B",
+              user_info: "updated B"
+            }
           });
 
           expect(members.get("B")).toEqual({ id: "B", info: "updated B"});
         });
 
         it("should not increment member count after updating a member", function() {
-          channel.handleEvent("pusher_internal:member_added", {
-            user_id: "B",
-            user_info: "updated B"
+          channel.handleEvent({
+            event: "pusher_internal:member_added",
+            data: {
+              user_id: "B",
+              user_info: "updated B"
+            }
           });
 
           expect(members.count).toEqual(3);
@@ -315,9 +371,12 @@ describe("PresenceChannel", function() {
           var callback = jasmine.createSpy("callback");
           channel.bind("pusher:member_added", callback);
 
-          channel.handleEvent("pusher_internal:member_added", {
-            user_id: "B",
-            user_info: "updated B"
+          channel.handleEvent({
+            event: "pusher_internal:member_added",
+            data: {
+              user_id: "B",
+              user_info: "updated B"
+            }
           });
 
           expect(callback).toHaveBeenCalledWith({ id: "B", info: "updated B" });
@@ -326,8 +385,11 @@ describe("PresenceChannel", function() {
 
       describe("on pusher_internal:member_removed", function() {
         it("should remove an existing member", function() {
-          channel.handleEvent("pusher_internal:member_removed", {
-            user_id: "B"
+          channel.handleEvent({
+            event: "pusher_internal:member_removed",
+            data: {
+              user_id: "B"
+            }
           });
 
           expect(members.get("B")).toEqual(null);
@@ -337,16 +399,22 @@ describe("PresenceChannel", function() {
           var callback = jasmine.createSpy("callback");
           channel.bind("pusher:member_removed", callback);
 
-          channel.handleEvent("pusher_internal:member_removed", {
-            user_id: "B"
+          channel.handleEvent({
+            event: "pusher_internal:member_removed",
+            data: {
+              user_id: "B"
+            }
           });
 
           expect(callback).toHaveBeenCalledWith({ id: "B", info: "user B" });
         });
 
         it("should decrement member count after removing a member", function() {
-          channel.handleEvent("pusher_internal:member_removed", {
-            user_id: "B"
+          channel.handleEvent({
+            event: "pusher_internal:member_removed",
+            data: {
+              user_id: "B"
+            }
           });
 
           expect(members.count).toEqual(2);
@@ -356,16 +424,22 @@ describe("PresenceChannel", function() {
           var callback = jasmine.createSpy("callback");
           channel.bind("pusher:member_removed", callback);
 
-          channel.handleEvent("pusher_internal:member_removed", {
-            user_id: "C"
+          channel.handleEvent({
+            event: "pusher_internal:member_removed",
+            data: {
+              user_id: "C"
+            },
           });
 
           expect(callback).not.toHaveBeenCalled();
         });
 
         it("should not decrement member count if member was not removed", function() {
-          channel.handleEvent("pusher_internal:member_removed", {
-            user_id: "C"
+          channel.handleEvent({
+            event: "pusher_internal:member_removed",
+            data: {
+              user_id: "C"
+            }
           });
 
           expect(members.count).toEqual(3);
diff --git a/spec/javascripts/unit/core/channels/private_channel_spec.js b/spec/javascripts/unit/core/channels/private_channel_spec.js
index 993141b16..c3675a5f1 100644
--- a/spec/javascripts/unit/core/channels/private_channel_spec.js
+++ b/spec/javascripts/unit/core/channels/private_channel_spec.js
@@ -76,6 +76,9 @@ describe("PrivateChannel", function() {
   });
 
   describe("#trigger", function() {
+    beforeEach(function() {
+      channel.subscribed = true;
+    })
     it("should raise an exception if the event name does not start with client-", function() {
       expect(function() {
         channel.trigger("whatever", {});
@@ -101,7 +104,9 @@ describe("PrivateChannel", function() {
 
   describe("#disconnect", function() {
     it("should set subscribed to false", function() {
-      channel.handleEvent("pusher_internal:subscription_succeeded");
+      channel.handleEvent({
+        event: "pusher_internal:subscription_succeeded"
+      });
       channel.disconnect();
       expect(channel.subscribed).toEqual(false);
     });
@@ -113,7 +118,9 @@ describe("PrivateChannel", function() {
       channel.bind("pusher_internal:test", callback);
       channel.bind_global(callback);
 
-      channel.handleEvent("pusher_internal:test");
+      channel.handleEvent({
+        event: "pusher_internal:test"
+      });
 
       expect(callback).not.toHaveBeenCalled();
     });
@@ -123,19 +130,28 @@ describe("PrivateChannel", function() {
         var callback = jasmine.createSpy("callback");
         channel.bind("pusher:subscription_succeeded", callback);
 
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
 
         expect(callback).toHaveBeenCalledWith("123");
       });
 
       it("should set #subscribed to true", function() {
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
 
         expect(channel.subscribed).toEqual(true);
       });
 
       it("should set #subscriptionPending to false", function() {
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
 
         expect(channel.subscriptionPending).toEqual(false);
       });
@@ -147,21 +163,30 @@ describe("PrivateChannel", function() {
         channel.bind("pusher:subscription_succeeded", callback);
 
         channel.cancelSubscription();
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
 
         expect(callback).not.toHaveBeenCalled();
       });
 
       it("should set #subscribed to true", function() {
         channel.cancelSubscription();
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
 
         expect(channel.subscribed).toEqual(true);
       });
 
       it("should set #subscriptionPending to false", function() {
         channel.cancelSubscription();
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
 
         expect(channel.subscriptionPending).toEqual(false);
       });
@@ -170,7 +195,10 @@ describe("PrivateChannel", function() {
         expect(pusher.unsubscribe).not.toHaveBeenCalled();
 
         channel.cancelSubscription();
-        channel.handleEvent("pusher_internal:subscription_succeeded", "123");
+        channel.handleEvent({
+          event: "pusher_internal:subscription_succeeded",
+          data: "123"
+        });
 
         expect(pusher.unsubscribe).toHaveBeenCalledWith(channel.name);
       });
@@ -181,9 +209,12 @@ describe("PrivateChannel", function() {
         var callback = jasmine.createSpy("callback");
         channel.bind("something", callback);
 
-        channel.handleEvent("something", 9);
+        channel.handleEvent({
+          event: "something",
+          data: 9
+        });
 
-        expect(callback).toHaveBeenCalledWith(9);
+        expect(callback).toHaveBeenCalledWith(9, {});
       });
     });
   });
diff --git a/spec/javascripts/unit/core/connection/connection_spec.js b/spec/javascripts/unit/core/connection/connection_spec.js
index 14705ed31..2e35e5ac6 100644
--- a/spec/javascripts/unit/core/connection/connection_spec.js
+++ b/spec/javascripts/unit/core/connection/connection_spec.js
@@ -114,7 +114,7 @@ describe("Connection", function() {
       });
       expect(onMessage).toHaveBeenCalledWith({
         event: "random",
-        data: { foo: "bar" }
+        data: { foo: "bar" },
       });
     });
 
diff --git a/spec/javascripts/unit/core/connection/protocol_spec.js b/spec/javascripts/unit/core/connection/protocol_spec.js
index 4845bf2ad..792af440e 100644
--- a/spec/javascripts/unit/core/connection/protocol_spec.js
+++ b/spec/javascripts/unit/core/connection/protocol_spec.js
@@ -14,7 +14,7 @@ describe("Protocol", function() {
         event: "random",
         data: {
           foo: "bar"
-        }
+        },
       });
     });
 
@@ -28,7 +28,7 @@ describe("Protocol", function() {
 
       expect(Protocol.decodeMessage(message)).toEqual({
         event: "raw",
-        data: "just a string"
+        data: "just a string",
       });
     });
 
@@ -45,7 +45,22 @@ describe("Protocol", function() {
         data: {
           x: "y",
           z: 1
-        }
+        },
+      });
+    });
+    it("should parse user_id message with user_id", function() {
+      var message = {
+        data: JSON.stringify({
+          event: "raw",
+          data: "just a string",
+          user_id: "abc-def",
+        })
+      };
+
+      expect(Protocol.decodeMessage(message)).toEqual({
+        event: "raw",
+        data: "just a string",
+        user_id: "abc-def"
       });
     });
 
diff --git a/spec/javascripts/unit/core/events_dispatcher_spec.js b/spec/javascripts/unit/core/events_dispatcher_spec.js
index 248def496..f19a01bd4 100644
--- a/spec/javascripts/unit/core/events_dispatcher_spec.js
+++ b/spec/javascripts/unit/core/events_dispatcher_spec.js
@@ -306,6 +306,14 @@ describe("EventsDispatcher", function() {
       expect(boundContext).toEqual(context);
       expect(unboundContext).toEqual(global);
     });
+    it("should call listener with provided metadata", function() {
+      var callback = jasmine.createSpy("callback");
+      dispatcher.bind("some-event", callback);
+
+      dispatcher.emit("some-event", {data: 1}, {user_id: "123-abc"})
+
+      expect(callback).toHaveBeenCalledWith({data: 1}, {user_id: "123-abc"})
+    })
   });
 
   describe("#unbind_global", function() {
diff --git a/spec/javascripts/unit/core/pusher_spec.js b/spec/javascripts/unit/core/pusher_spec.js
index c423170c6..8a44b2e60 100644
--- a/spec/javascripts/unit/core/pusher_spec.js
+++ b/spec/javascripts/unit/core/pusher_spec.js
@@ -376,9 +376,11 @@ describe("Pusher", function() {
         event: "event",
         data: { key: "value" }
       });
-      expect(channel.handleEvent).toHaveBeenCalledWith(
-        "event", { key: "value" }
-      );
+      expect(channel.handleEvent).toHaveBeenCalledWith({
+        channel: "chan",
+        event: "event",
+        data: { key: "value" },
+      });
     });
 
     it("should not publish events to other channels", function() {
diff --git a/spec/javascripts/unit/core/transports/transport_connection_spec.js b/spec/javascripts/unit/core/transports/transport_connection_spec.js
index 1a55e32a5..9fb0475fb 100644
--- a/spec/javascripts/unit/core/transports/transport_connection_spec.js
+++ b/spec/javascripts/unit/core/transports/transport_connection_spec.js
@@ -539,7 +539,7 @@ describe("TransportConnection", function() {
 
       socket.onclose();
 
-      expect(onClosed).toHaveBeenCalledWith(undefined);
+      expect(onClosed).toHaveBeenCalled();
       expect(onClosed.calls.length).toEqual(1);
     });
 
diff --git a/src/core/channels/channel.ts b/src/core/channels/channel.ts
index c3b8cabd6..6b9183ad6 100644
--- a/src/core/channels/channel.ts
+++ b/src/core/channels/channel.ts
@@ -2,6 +2,9 @@ import {default as EventsDispatcher} from '../events/dispatcher';
 import * as Errors from '../errors';
 import Logger from '../logger';
 import Pusher from '../pusher';
+import {PusherEvent} from '../connection/protocol/message-types';
+import Metadata from './metadata'
+import UrlStore from '../utils/url_store';
 
 /** Provides base public channel interface with an event emitter.
  *
@@ -46,6 +49,12 @@ export default class Channel extends EventsDispatcher {
         "Event '" + event + "' does not start with 'client-'"
       );
     }
+    if (!this.subscribed) {
+      var suffix = UrlStore.buildLogSuffix("triggeringClientEvents");
+      Logger.warn(
+        `Client event triggered before channel 'subscription_succeeded' event . ${suffix}`
+      );
+    }
     return this.pusher.send_event(event, data, this.name);
   }
 
@@ -55,24 +64,28 @@ export default class Channel extends EventsDispatcher {
     this.subscriptionPending = false;
   }
 
-  /** Handles an event. For internal use only.
+  /** Handles a PusherEvent. For internal use only.
    *
-   * @param {String} event
-   * @param {*} data
+   * @param {PusherEvent} event
    */
-  handleEvent(event : string, data : any) {
-    if (event.indexOf("pusher_internal:") === 0) {
-      if (event === "pusher_internal:subscription_succeeded") {
-        this.subscriptionPending = false;
-        this.subscribed = true;
-        if (this.subscriptionCancelled) {
-          this.pusher.unsubscribe(this.name);
-        } else {
-          this.emit("pusher:subscription_succeeded", data);
-        }
-      }
+  handleEvent(event: PusherEvent) {
+    var eventName = event.event;
+    var data = event.data;
+    if (eventName === "pusher_internal:subscription_succeeded") {
+      this.handleSubscriptionSucceededEvent(event);
+    } else if (eventName.indexOf("pusher_internal:") !== 0) {
+      var metadata: Metadata = {}
+      this.emit(eventName, data, metadata);
+    }
+  }
+
+  handleSubscriptionSucceededEvent(event: PusherEvent) {
+    this.subscriptionPending = false;
+    this.subscribed = true;
+    if (this.subscriptionCancelled) {
+      this.pusher.unsubscribe(this.name);
     } else {
-      this.emit(event, data);
+      this.emit("pusher:subscription_succeeded", event.data);
     }
   }
 
@@ -83,7 +96,7 @@ export default class Channel extends EventsDispatcher {
     this.subscriptionCancelled = false;
     this.authorize(this.pusher.connection.socket_id, (error, data)=> {
       if (error) {
-        this.handleEvent('pusher:subscription_error', data);
+        this.emit('pusher:subscription_error', data)
       } else {
         this.pusher.send_event('pusher:subscribe', {
           auth: data.auth,
diff --git a/src/core/channels/encrypted_channel.ts b/src/core/channels/encrypted_channel.ts
index af4af192d..9c44ce5f3 100644
--- a/src/core/channels/encrypted_channel.ts
+++ b/src/core/channels/encrypted_channel.ts
@@ -7,6 +7,7 @@ import {
   decodeBase64
 } from "tweetnacl-util";
 import Dispatcher from "../events/dispatcher";
+import {PusherEvent} from '../connection/protocol/message-types';
 
 /** Extends private channels to provide encrypted channel interface.
  *
@@ -48,15 +49,16 @@ export default class EncryptedChannel extends PrivateChannel {
 
   /** Handles an event. For internal use only.
    *
-   * @param {String} event
-   * @param {*} data
+   * @param {PusherEvent} event
    */
-  handleEvent(event: string, data: any) {
-    if (event.indexOf("pusher_internal:") === 0 || event.indexOf("pusher:") === 0) {
-      super.handleEvent(event, data);
+  handleEvent(event: PusherEvent) {
+    var eventName = event.event;
+    var data = event.data;
+    if (eventName.indexOf("pusher_internal:") === 0 || eventName.indexOf("pusher:") === 0) {
+      super.handleEvent(event);
       return
     }
-    this.handleEncryptedEvent(event, data)
+    this.handleEncryptedEvent(eventName, data)
   }
 
   private handleEncryptedEvent(event: string, data: any): void {
diff --git a/src/core/channels/metadata.ts b/src/core/channels/metadata.ts
new file mode 100644
index 000000000..b359ab805
--- /dev/null
+++ b/src/core/channels/metadata.ts
@@ -0,0 +1,5 @@
+interface Metadata {
+  user_id?: string
+}
+
+export default Metadata
diff --git a/src/core/channels/presence_channel.ts b/src/core/channels/presence_channel.ts
index d50c0d9fc..1d28018a8 100644
--- a/src/core/channels/presence_channel.ts
+++ b/src/core/channels/presence_channel.ts
@@ -3,6 +3,8 @@ import Logger from '../logger';
 import Members from './members';
 import Pusher from '../pusher';
 import UrlStore from 'core/utils/url_store';
+import {PusherEvent} from '../connection/protocol/message-types';
+import Metadata from './metadata'
 
 export default class PresenceChannel extends PrivateChannel {
   members: Members;
@@ -43,21 +45,28 @@ export default class PresenceChannel extends PrivateChannel {
 
   /** Handles presence and subscription events. For internal use only.
    *
-   * @param {String} event
-   * @param {*} data
+   * @param {PusherEvent} event
    */
-  handleEvent(event : string, data : any) {
-    switch (event) {
+  handleEvent(event: PusherEvent) {
+    var eventName = event.event;
+    if (eventName.indexOf("pusher_internal:") === 0) {
+      this.handleInternalEvent(event)
+    } else {
+      var data = event.data;
+      var metadata: Metadata = {};
+      if (event.user_id) {
+        metadata.user_id = event.user_id
+      }
+      this.emit(eventName, data, metadata);
+    }
+  }
+  handleInternalEvent(event: PusherEvent) {
+    var eventName = event.event;
+    var data = event.data;
+    switch (eventName) {
       case "pusher_internal:subscription_succeeded":
-        this.subscriptionPending = false;
-        this.subscribed = true;
-        if (this.subscriptionCancelled) {
-          this.pusher.unsubscribe(this.name);
-        } else {
-          this.members.onSubscription(data);
-          this.emit("pusher:subscription_succeeded", this.members);
-        }
-        break;
+        this.handleSubscriptionSucceededEvent(event)
+        break
       case "pusher_internal:member_added":
         var addedMember = this.members.addMember(data);
         this.emit('pusher:member_added', addedMember);
@@ -68,8 +77,17 @@ export default class PresenceChannel extends PrivateChannel {
           this.emit('pusher:member_removed', removedMember);
         }
         break;
-      default:
-        PrivateChannel.prototype.handleEvent.call(this, event, data);
+    }
+  }
+
+  handleSubscriptionSucceededEvent(event: PusherEvent) {
+    this.subscriptionPending = false;
+    this.subscribed = true;
+    if (this.subscriptionCancelled) {
+      this.pusher.unsubscribe(this.name);
+    } else {
+      this.members.onSubscription(event.data);
+      this.emit("pusher:subscription_succeeded", this.members);
     }
   }
 
diff --git a/src/core/connection/connection.ts b/src/core/connection/connection.ts
index 7e288bb26..5c824ba4c 100644
--- a/src/core/connection/connection.ts
+++ b/src/core/connection/connection.ts
@@ -1,7 +1,7 @@
 import * as Collections from '../utils/collections';
 import {default as EventsDispatcher} from '../events/dispatcher';
 import * as Protocol from './protocol/protocol';
-import Message from './protocol/message';
+import {PusherEvent} from './protocol/message-types';
 import Logger from '../logger';
 import TransportConnection from "../transports/transport_connection";
 import Socket from "../socket";
@@ -58,12 +58,12 @@ export default class Connection extends EventsDispatcher implements Socket {
    * @returns {Boolean} whether message was sent or not
    */
    send_event(name : string, data : any, channel?: string) : boolean {
-     var message : Message = { event: name, data: data };
+     var event : PusherEvent = { event: name, data: data };
      if (channel) {
-       message.channel = channel;
+       event.channel = channel;
      }
-     Logger.debug('Event sent', message);
-     return this.send(Protocol.encodeMessage(message));
+     Logger.debug('Event sent', event);
+     return this.send(Protocol.encodeMessage(event));
    }
 
    /** Sends a ping message to the server.
@@ -86,24 +86,24 @@ export default class Connection extends EventsDispatcher implements Socket {
 
    private bindListeners() {
      var listeners = {
-       message: (m)=> {
-         var message;
+       message: (messageEvent: MessageEvent)=> {
+         var pusherEvent;
          try {
-           message = Protocol.decodeMessage(m);
+           pusherEvent = Protocol.decodeMessage(messageEvent);
          } catch(e) {
            this.emit('error', {
              type: 'MessageParseError',
              error: e,
-             data: m.data
+             data: messageEvent.data
            });
          }
 
-         if (message !== undefined) {
-           Logger.debug('Event recd', message);
+         if (pusherEvent !== undefined) {
+           Logger.debug('Event recd', pusherEvent);
 
-           switch (message.event) {
+           switch (pusherEvent.event) {
              case 'pusher:error':
-               this.emit('error', { type: 'PusherError', data: message.data });
+               this.emit('error', { type: 'PusherError', data: pusherEvent.data });
                break;
              case 'pusher:ping':
                this.emit("ping");
@@ -112,7 +112,7 @@ export default class Connection extends EventsDispatcher implements Socket {
                this.emit("pong");
                break;
            }
-           this.emit('message', message);
+           this.emit('message', pusherEvent);
          }
        },
        activity: ()=> {
diff --git a/src/core/connection/protocol/message-types.ts b/src/core/connection/protocol/message-types.ts
new file mode 100644
index 000000000..c45dedf73
--- /dev/null
+++ b/src/core/connection/protocol/message-types.ts
@@ -0,0 +1,8 @@
+interface PusherEvent {
+  event: string;
+  channel?: string;
+  data?: any;
+  user_id?: string;
+}
+
+export {PusherEvent}
diff --git a/src/core/connection/protocol/message.ts b/src/core/connection/protocol/message.ts
deleted file mode 100644
index 403293efe..000000000
--- a/src/core/connection/protocol/message.ts
+++ /dev/null
@@ -1,7 +0,0 @@
-interface Message {
-  event: string;
-  channel?: string;
-  data?: any;
-}
-
-export default Message;
diff --git a/src/core/connection/protocol/protocol.ts b/src/core/connection/protocol/protocol.ts
index e033613a6..7d07e2003 100644
--- a/src/core/connection/protocol/protocol.ts
+++ b/src/core/connection/protocol/protocol.ts
@@ -1,5 +1,5 @@
 import Action from './action';
-import Message from './message';
+import {PusherEvent} from './message-types';
 /**
  * Provides functions for handling Pusher protocol-specific messages.
  */
@@ -7,39 +7,49 @@ import Message from './message';
 /**
  * Decodes a message in a Pusher format.
  *
+ * The MessageEvent we receive from the transport should contain a pusher event
+ * (https://pusher.com/docs/pusher_protocol#events) serialized as JSON in the
+ * data field
+ *
+ * The pusher event may contain a data field too, and it may also be
+ * serialised as JSON
+ *
  * Throws errors when messages are not parse'able.
  *
- * @param  {Object} message
- * @return {Object}
+ * @param  {MessageEvent} messageEvent
+ * @return {PusherEvent}
  */
-export var decodeMessage = function(message : Message) : Message {
+export var decodeMessage = function(messageEvent : MessageEvent) : PusherEvent {
   try {
-    var params = JSON.parse(message.data);
-    if (typeof params.data === 'string') {
+    var messageData = JSON.parse(messageEvent.data);
+    var pusherEventData = messageData.data;
+    if (typeof pusherEventData === 'string') {
       try {
-        params.data = JSON.parse(params.data);
-      } catch (e) {
-        if (!(e instanceof SyntaxError)) {
-          // TODO looks like unreachable code
-          // https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/JSON/parse
-          throw e;
-        }
-      }
+        pusherEventData = JSON.parse(messageData.data)
+      } catch (e) {}
+    }
+    var pusherEvent: PusherEvent = {
+      event: messageData.event,
+      channel: messageData.channel,
+      data: pusherEventData,
+    }
+    if (messageData.user_id) {
+      pusherEvent.user_id = messageData.user_id
     }
-    return params;
+    return pusherEvent;
   } catch (e) {
-    throw { type: 'MessageParseError', error: e, data: message.data};
+    throw { type: 'MessageParseError', error: e, data: messageEvent.data};
   }
 };
 
 /**
  * Encodes a message to be sent.
  *
- * @param  {Object} message
+ * @param  {PusherEvent} event
  * @return {String}
  */
-export var encodeMessage = function(message : Message) : string {
-  return JSON.stringify(message);
+export var encodeMessage = function(event : PusherEvent) : string {
+  return JSON.stringify(event);
 };
 
 /** Processes a handshake message and returns appropriate actions.
@@ -55,8 +65,8 @@ export var encodeMessage = function(message : Message) : string {
  * @param {String} message
  * @result Object
  */
-export var processHandshake = function(message : Message) : Action {
-  message = decodeMessage(message);
+export var processHandshake = function(messageEvent : MessageEvent) : Action {
+  var message = decodeMessage(messageEvent);
 
   if (message.event === "pusher:connection_established") {
     if (!message.data.activity_timeout) {
diff --git a/src/core/events/dispatcher.ts b/src/core/events/dispatcher.ts
index ff62f1451..7c7f200fa 100644
--- a/src/core/events/dispatcher.ts
+++ b/src/core/events/dispatcher.ts
@@ -1,5 +1,6 @@
 import * as Collections from '../utils/collections';
 import Callback from './callback';
+import Metadata from '../channels/metadata';
 import CallbackRegistry from './callback_registry';
 
 /** Manages callback bindings and event emitting.
@@ -52,17 +53,29 @@ export default class Dispatcher {
     return this;
   }
 
-  emit(eventName : string, data?: any) : Dispatcher {
-    var i;
-
-    for (i = 0; i < this.global_callbacks.length; i++) {
+  emit(eventName : string, data?: any, metadata?: Metadata) : Dispatcher {
+    for (var i = 0; i < this.global_callbacks.length; i++) {
       this.global_callbacks[i](eventName, data);
     }
 
     var callbacks = this.callbacks.get(eventName);
+    var args = [];
+
+    if (metadata) {
+
+      // if there's a metadata argument, we need to call the callback with both
+      // data and metadata regardless of whether data is undefined
+      args.push(data, metadata)
+    } else if (data) {
+
+      // metadata is undefined, so we only need to call the callback with data
+      // if data exists
+      args.push(data)
+    }
+
     if (callbacks && callbacks.length > 0) {
-      for (i = 0; i < callbacks.length; i++) {
-        callbacks[i].fn.call(callbacks[i].context || global, data);
+      for (var i = 0; i < callbacks.length; i++) {
+        callbacks[i].fn.apply(callbacks[i].context || global, args);
       }
     } else if (this.failThrough) {
       this.failThrough(eventName, data);
diff --git a/src/core/pusher.ts b/src/core/pusher.ts
index a5d600930..4fdbf326a 100644
--- a/src/core/pusher.ts
+++ b/src/core/pusher.ts
@@ -128,17 +128,18 @@ export default class Pusher {
         this.timelineSender.send(this.connection.isUsingTLS());
       }
     });
-    this.connection.bind('message', (params)=> {
-      var internal = (params.event.indexOf('pusher_internal:') === 0);
-      if (params.channel) {
-        var channel = this.channel(params.channel);
+    this.connection.bind('message', (event)=> {
+      var eventName = event.event;
+      var internal = (eventName.indexOf('pusher_internal:') === 0);
+      if (event.channel) {
+        var channel = this.channel(event.channel);
         if (channel) {
-          channel.handleEvent(params.event, params.data);
+          channel.handleEvent(event);
         }
       }
       // Emit globally [deprecated]
       if (!internal) {
-        this.global_emitter.emit(params.event, params.data);
+        this.global_emitter.emit(event.event, event.data);
       }
     });
     this.connection.bind('connecting', ()=> {
diff --git a/src/core/utils/url_store.ts b/src/core/utils/url_store.ts
index d8878dfdc..b124ada7c 100644
--- a/src/core/utils/url_store.ts
+++ b/src/core/utils/url_store.ts
@@ -11,6 +11,9 @@ const urlStore = {
     javascriptQuickStart: {
       path: "/docs/javascript_quick_start"
     },
+    triggeringClientEvents: {
+      path: "/docs/client_api_guide/client_events#trigger-events"
+    }
   }
 }