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Stream notify #725

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Sep 7, 2015
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10 changes: 6 additions & 4 deletions client/lib/RoomManager.coffee
Original file line number Diff line number Diff line change
Expand Up @@ -30,12 +30,15 @@ Meteor.startup ->
ChatMessage.update {_id: recordAfter._id}, {$set: {tick: new Date}}


onDeleteMessageStream = (msg) ->
ChatMessage.remove _id: msg._id


@RoomManager = new class
defaultTime = 600000 # 10 minutes
openedRooms = {}
subscription = null
msgStream = new Meteor.Stream 'messages'
deleteMsgStream = new Meteor.Stream 'delete-message'
onlineUsers = new ReactiveVar {}

Dep = new Tracker.Dependency
Expand All @@ -52,7 +55,7 @@ Meteor.startup ->

if openedRooms[typeName].rid?
msgStream.removeListener openedRooms[typeName].rid
deleteMsgStream.removeListener openedRooms[typeName].rid
RocketChat.Notifications.unRoom openedRooms[typeName].rid, 'deleteMessage', onDeleteMessageStream

openedRooms[typeName].ready = false
openedRooms[typeName].active = false
Expand Down Expand Up @@ -101,8 +104,7 @@ Meteor.startup ->
RoomManager.close type + FlowRouter.getParam('name')
FlowRouter.go FlowRouter.current().route.name, name: msg.msg

deleteMsgStream.on openedRooms[typeName].rid, (msg) ->
ChatMessage.remove _id: msg._id
RocketChat.Notifications.onRoom openedRooms[typeName].rid, 'deleteMessage', onDeleteMessageStream

Dep.changed()

Expand Down
15 changes: 7 additions & 8 deletions client/lib/msgTyping.coffee
Original file line number Diff line number Diff line change
@@ -1,5 +1,4 @@
@MsgTyping = do ->
stream = new Meteor.Stream 'typing'
timeout = 15000
timeouts = {}
renew = true
Expand All @@ -11,7 +10,7 @@
addStream = (room) ->
if _.isEmpty usersTyping[room]?.users
usersTyping[room] = { users: {} }
stream.on room, (typing) ->
RocketChat.Notifications.onRoom room, 'typing', (typing) ->
unless typing?.username is Meteor.user()?.username
if typing.start
users = usersTyping[room].users
Expand Down Expand Up @@ -41,7 +40,7 @@

renew = false
selfTyping.set true
stream.emit 'typing', { room: room, username: Meteor.user()?.username, start: true }
RocketChat.Notifications.notifyRoom room, 'typing', { room: room, username: Meteor.user()?.username, start: true }
clearTimeout timeouts[room]
timeouts[room] = Meteor.setTimeout ->
stop(room)
Expand All @@ -51,20 +50,20 @@
renew = true
selfTyping.set false
if timeouts?[room]?
clearTimeout(timeouts[room])
clearTimeout(timeouts[room])
timeouts[room] = null
stream.emit 'typing', { room: room, username: Meteor.user()?.username, stop: true }
RocketChat.Notifications.notifyRoom room, 'typing', { room: room, username: Meteor.user()?.username, stop: true }

get = (room) ->
dep.depend()
unless usersTyping[room]
usersTyping[room] = { users: {} }
users = usersTyping[room].users
return _.keys(users) or []

return {
return {
start: start
stop: stop
get: get
selfTyping: selfTyping
}
}
3 changes: 3 additions & 0 deletions client/notifications/updateAvatar.coffee
Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
Meteor.startup ->
RocketChat.Notifications.onAll 'updateAvatar', (data) ->
updateAvatarOfUsername data.username
2 changes: 0 additions & 2 deletions client/views/account/avatar/prompt.coffee
Original file line number Diff line number Diff line change
Expand Up @@ -34,11 +34,9 @@ Template.avatarPrompt.events
'click .select-service': ->
if @service is 'initials'
Meteor.call 'resetAvatar'
updateAvatarOfUsername Meteor.user().username
toastr.success t('Avatar_changed_successfully')
else
Meteor.call 'setAvatarFromService', @blob, @contentType, @service, ->
updateAvatarOfUsername Meteor.user().username
toastr.success t('Avatar_changed_successfully')

'click .login-with-service': (event, template) ->
Expand Down
22 changes: 22 additions & 0 deletions packages/meteor-streams/LICENSE
Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
(The MIT License)

Copyright (c) 2013 Arunoda Susiripala <arunoda.susiripala@gmail.com>

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
'Software'), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
10 changes: 10 additions & 0 deletions packages/meteor-streams/README.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,10 @@
# Meteor Streams [![Build Status](https://travis-ci.org/arunoda/meteor-streams.png?branch=master)](https://travis-ci.org/arunoda/meteor-streams)

DB less realtime communication for meteor

## Development Status
Project development status is [inactive](https://github.com/arunoda/meteor-streams/issues/21#issuecomment-59030380).

## [Documentation](http://arunoda.github.io/meteor-streams/)

[![Meteor Streams - DB less realtime communication for meteor](http://i.imgur.com/ZB3g3AK.png)](http://arunoda.github.io/meteor-streams/)
48 changes: 48 additions & 0 deletions packages/meteor-streams/lib/client.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,48 @@
Meteor.Stream = function Stream(name, callback) {
EV.call(this);

var self = this;
var streamName = 'stream-' + name;
var collection = new Meteor.Collection(streamName);
var subscription;
var subscriptionId;

var connected = false;
var pendingEvents = [];

self._emit = self.emit;

collection.find({}).observe({
"added": function(item) {
if(item.type == 'subscriptionId') {
subscriptionId = item._id;
connected = true;
pendingEvents.forEach(function(args) {
self.emit.apply(self, args);
});
pendingEvents = [];
} else {
var context = {};
context.subscriptionId = item.subscriptionId;
context.userId = item.userId;
self._emit.apply(context, item.args);
}
}
});

subscription = Meteor.subscribe(streamName, callback);

self.emit = function emit() {
if(connected) {
Meteor.call(streamName, subscriptionId, arguments);
} else {
pendingEvents.push(arguments);
}
};

self.close = function close() {
subscription.stop();
};
}

_.extend(Meteor.Stream.prototype, EV.prototype);
44 changes: 44 additions & 0 deletions packages/meteor-streams/lib/ev.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,44 @@
function _EV() {
var self = this;
var handlers = {};

self.emit = function emit(event) {
var args = Array.prototype.slice.call(arguments, 1);

if(handlers[event]) {
for(var lc=0; lc<handlers[event].length; lc++) {
var handler = handlers[event][lc];
handler.apply(this, args);
}
}
};

self.on = function on(event, callback) {
if(!handlers[event]) {
handlers[event] = [];
}
handlers[event].push(callback);
};

self.once = function once(event, callback) {
self.on(event, function onetimeCallback() {
callback.apply(this, arguments);
self.removeListener(event, onetimeCallback);
});
};

self.removeListener = function removeListener(event, callback) {
if(handlers[event]) {
var index = handlers[event].indexOf(callback);
console.log(index);
if (index > -1)
handlers[event].splice(index, 1);
}
};

self.removeAllListeners = function removeAllListeners(event) {
handlers[event] = undefined;
};
}

EV = _EV;
114 changes: 114 additions & 0 deletions packages/meteor-streams/lib/server.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,114 @@
var EventEmitter = Npm.require('events').EventEmitter;
var util = Npm.require('util');
var Fibers = Npm.require('fibers');

Meteor.Stream = function Stream(name) {
EV.call(this);

var self = this;
var streamName = 'stream-' + name;
var allowFunction;
var allowResultCache = true;
var allowResults = {};
var filters = [];

self.name = name;

var events = new EventEmitter();
events.setMaxListeners(0);

var disconnectEvents = new EV();

self._emit = self.emit;
self.emit = function emit() {
self.emitToSubscriptions(arguments, null, null);
};

var defaultResult = (typeof(Package) == 'object' && Package.insecure)? true: Meteor.Collection.insecure === true;
self.permissions = new Meteor.Stream.Permission(defaultResult, true);

self.addFilter = function addFilter(callback) {
filters.push(callback);
};

self.emitToSubscriptions = function emitToSubscriptions(args, subscriptionId, userId) {
events.emit('item', {args: args, userId: userId, subscriptionId: subscriptionId});
};

Meteor.publish(streamName, function() {
check(arguments, Match.Any);
var subscriptionId = Random.id();
var publication = this;

//send subscription id as the first document
publication.added(streamName, subscriptionId, {type: 'subscriptionId'});
publication.ready();
events.on('item', onItem);

function onItem(item) {
Fibers(function() {
var id = Random.id();
if(self.permissions.checkPermission('read', subscriptionId, publication.userId, item.args)) {
//do not send again this to the sender
if(subscriptionId != item.subscriptionId) {
publication.added(streamName, id, item);
publication.removed(streamName, id);
}
}
}).run();
}

publication.onStop(function() {
//trigger related onDisconnect handlers if exists
Fibers(function() {
disconnectEvents.emit(subscriptionId);
disconnectEvents.removeAllListeners(subscriptionId);
}).run();
events.removeListener('item', onItem);
});
});

var methods = {};
methods[streamName] = function(subscriptionId, args) {
check(arguments, Match.Any);
//in order to send this to the server callback
var userId = this.userId;
Fibers(function() {
var methodContext = {};
methodContext.userId = userId;
methodContext.subscriptionId = subscriptionId;

//in order to send this to the serve callback
methodContext.allowed = self.permissions.checkPermission('write', subscriptionId, methodContext.userId, args);
if(methodContext.allowed) {
//apply filters
args = applyFilters(args, methodContext);
self.emitToSubscriptions(args, subscriptionId, methodContext.userId);
//send to firehose if exists
if(self.firehose) {
self.firehose(args, subscriptionId, methodContext.userId);
}
}
//need to send this to server always
self._emit.apply(methodContext, args);

//register onDisconnect handlers if provided
if(typeof(methodContext.onDisconnect) == 'function') {
disconnectEvents.on(subscriptionId, methodContext.onDisconnect)
}

}).run();
};
Meteor.methods(methods);

function applyFilters(args, context) {
var eventName = args.shift();
filters.forEach(function(filter) {
args = filter.call(context, eventName, args);
});
args.unshift(eventName);
return args;
}
};

util.inherits(Meteor.Stream, EV);
42 changes: 42 additions & 0 deletions packages/meteor-streams/lib/stream_permission.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,42 @@
Meteor.Stream.Permission = function (acceptAll, cacheAll) {
var options = {
"read": {
results: {}
},
"write": {
results: {}
}
};

this.read = function(func, cache) {
options['read']['func'] = func;
options['read']['doCache'] = (cache === undefined)? cacheAll: cache;
};

this.write = function(func, cache) {
options['write']['func'] = func;
options['write']['doCache'] = (cache === undefined)? cacheAll: cache;
};

this.checkPermission = function(type, subscriptionId, userId, args) {
var eventName = args[0];
var namespace = subscriptionId + '-' + eventName;
var result = options[type].results[namespace];

if(result === undefined) {
var func = options[type].func;
if(func) {
var context = {subscriptionId: subscriptionId, userId: userId};
result = func.apply(context, args);
if(options[type].doCache) {
options[type].results[namespace] = result;
}
return result;
} else {
return acceptAll;
}
} else {
return result;
}
};
}
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