Rocket.Chat/server/methods/setUsername.coffee

slug = (text) ->
	text = slugify text, '.'
	return text.replace(/[^0-9a-z-_.]/g, '')

usernameIsAvaliable = (username) ->
	if username.length < 1
		return false

	return not Meteor.users.findOne({username: username})?

Meteor.methods
	setUsername: (username) ->
		if not Meteor.userId()
			throw new Meteor.Error 203, '[methods] typingStatus -> Usuário não logado'

		user = Meteor.user()

		if user.username?
			throw new Meteor.Error 'username-already-setted'

		if not usernameIsAvaliable username
			throw new Meteor.Error 'username-unavaliable'

		if not /^[0-9a-z-_.]+$/.test username
			throw new Meteor.Error 'username-invalid'

		if not user.username?
			# put user in general channel
			ChatRoom.update '57om6EQCcFami9wuT',
				$addToSet:
					username: username

			if not ChatSubscription.findOne(rid: '57om6EQCcFami9wuT', 'u._id': user._id)?
				ChatSubscription.insert
					rid: '57om6EQCcFami9wuT'
					u:
						_id: user._id
						username: username
					ls: new Date()
					rn: 'general'
					t: 'c'
					f: true
					ts: new Date()
					unread: 0

				ChatMessage.insert
					u:
						_id: user._id
						username: username
					rid: '57om6EQCcFami9wuT'
					ts: new Date()
					t: 'wm'
					msg: "#{user.name} - #{username}"

		Meteor.users.update({_id: user._id}, {$set: {username: username}})

		return username