v1 basic invite works, not pretty or tested

services/web/app/coffee/Features/Email/EmailBuilder.coffee

@@ -88,6 +88,28 @@ templates.projectSharedWithYou =
 <p> <a href="<%= siteUrl %>">#{settings.appName}</a></p>
 """
 
+
+templates.completeJoinGroupAccount = 
+	subject: _.template "Verify Email to join <%= group_name %> group"
+	layout: NotificationEmailLayout
+	type:"notification"
+	compiledTemplate: _.template """
+<p>Hi, please verify your email to join the <%= group_name %> and get your free premium account</p>
+<center>
+	<div style="width:200px;background-color:#a93629;border:1px solid #e24b3b;border-radius:3px;padding:15px; margin:24px;">
+		<div style="padding-right:10px;padding-left:10px">
+			<a href="<%= completeJoinUrl %>" style="text-decoration:none" target="_blank">
+				<span style= "font-size:16px;font-family:Helvetica,Arial;font-weight:400;color:#fff;white-space:nowrap;display:block; text-align:center">
+		  			Verify now
+				</span>
+			</a>
+		</div>
+	</div>
+</center>
+<p> Thank you</p>
+<p> <a href="<%= siteUrl %>">#{settings.appName}</a></p>
+"""
+
 module.exports =
 	templates: templates
 

services/web/app/coffee/Features/Subscription/SubscriptionDomainAllocator.coffee

@@ -6,8 +6,36 @@ _s = require("underscore.string")
 
 module.exports = SubscriptionDomainAllocator =
 
+
+	getLicenceUserCanJoin: (user, callback)->
+		licence = SubscriptionDomainAllocator._findDomainLicence(user.email)
+		if licence?
+			callback null, licence
+		else
+			callback()
+
+	attemptToJoinGroup: (user, callback)->
+		licence = SubscriptionDomainAllocator._findDomainLicence(user.email)
+		if licence? and user.emailVerified
+			SubscriptionGroupHandler.addUserToGroup licence.adminUser_id, user.email, callback
+		else
+			callback "user not verified"
+
+	rejectInvitationToGroup: (user, subscription, callback)->
+		removeUserFromGroup(subscription.admin_id, user._id, callback)
+
+
+	getDomainLicencePage: (user)->
+		licence = SubscriptionDomainAllocator._findDomainLicence(user.email)
+		if licence?.verifyEmail
+			return "/user/subscription/#{licence.subscription_id}/group/invited"
+		else
+			return undefined
+
+
 	autoAllocate: (user, callback = ->)->
 		licence = SubscriptionDomainAllocator._findDomainLicence(user.email)
+		#
 		if licence?
 			SubscriptionGroupHandler.addUserToGroup licence.adminUser_id, user.email, callback
 		else
@@ -21,4 +49,8 @@ module.exports = SubscriptionDomainAllocator =
 
 		return licence
 
+	findDomainLicenceBySubscriptionId: (subscription_id)->
+		licence = _.find settings.domainLicences, (licence)->
+			licence?.subscription_id == subscription_id
+		return licence
 

services/web/app/coffee/Features/Subscription/SubscriptionGroupController.coffee

@@ -2,6 +2,11 @@ SubscriptionGroupHandler = require("./SubscriptionGroupHandler")
 logger = require("logger-sharelatex")
 SubscriptionLocator = require("./SubscriptionLocator")
 
+settings = require("settings-sharelatex")
+PasswordResetTokenHandler = require("../PasswordReset/PasswordResetTokenHandler")
+EmailHandler = require("../Email/EmailHandler")
+SubscriptionDomainAllocator = require("./SubscriptionDomainAllocator")
+
 module.exports =
 
 	addUserToGroup: (req, res)->
@@ -32,3 +37,38 @@ module.exports =
 					title: 'group_admin'
 					users: users
 					subscription: subscription
+
+	renderGroupInvitePage: (req, res)->
+		subscription_id = req.params.subscription_id
+		licence = SubscriptionDomainAllocator.findDomainLicenceBySubscriptionId(subscription_id)
+
+		res.render "subscriptions/group/invite",
+			title: "Group Invitation"
+			subscription_id:subscription_id
+			licenceName:licence.name
+
+	beginJoinGroup: (req, res)->
+		subscription_id = req.params.subscription_id
+		user_id = req.session.user._id
+		licence = SubscriptionDomainAllocator.findDomainLicenceBySubscriptionId(subscription_id)
+		if !licence?
+			res.send 500
+		PasswordResetTokenHandler.getNewToken subscription_id, (err, token)->
+			opts =
+				to : req.session.user.email
+				group_name: licence.name
+				completeJoinUrl: "#{settings.siteUrl}/user/subscription/#{subscription_id}/group/complete_join?token=#{token}"
+			EmailHandler.sendEmail "completeJoinGroupAccount", opts, ->
+				res.send 200
+
+	completeJoin: (req, res)->
+		subscription_id = req.params.subscription_id
+		PasswordResetTokenHandler.getUserIdFromTokenAndExpire req.query.token, (err, token_subscription_id)->
+			console.log token_subscription_id
+			if subscription_id != token_subscription_id
+				return res.send 403
+			SubscriptionLocator.getSubscription subscription_id, (err, subscription)->
+				SubscriptionGroupHandler.addUserToGroup subscription.admin_id, req.user.email, (err, user)->
+					res.send "joined"
+
+

services/web/app/coffee/Features/Subscription/SubscriptionLocator.coffee

@@ -14,4 +14,7 @@ module.exports =
 
 	getMemberSubscriptions: (user_id, callback) ->
 		logger.log user_id: user_id, "getting users group subscriptions"
-		Subscription.find(member_ids: user_id).populate("admin_id").exec callback
+		Subscription.find(member_ids: user_id).populate("admin_id").exec callback
+
+	getSubscription: (subscription_id, callback)->
+		Subscription.findOne _id:subscription_id, callback

services/web/app/coffee/Features/Subscription/SubscriptionRouter.coffee

@@ -24,6 +24,9 @@ module.exports =
 		app.post '/subscription/group/user', AuthenticationController.requireLogin(),  SubscriptionGroupController.addUserToGroup
 		app.del '/subscription/group/user/:user_id', AuthenticationController.requireLogin(), SubscriptionGroupController.removeUserFromGroup
 
+		app.get '/user/subscription/:subscription_id/group/invited', AuthenticationController.requireLogin(), SubscriptionGroupController.renderGroupInvitePage
+		app.post '/user/subscription/:subscription_id/group/begin_join', AuthenticationController.requireLogin(), SubscriptionGroupController.beginJoinGroup
+		app.get '/user/subscription/:subscription_id/group/complete_join', AuthenticationController.requireLogin(), SubscriptionGroupController.completeJoin
 
 		#recurly callback
 		app.post '/user/subscription/callback',   SubscriptionController.recurlyNotificationParser, SubscriptionController.recurlyCallback

services/web/app/coffee/models/User.coffee

@@ -53,7 +53,6 @@ UserSchema = new Schema
 					# has this set to true, despite never having had a free trial
 					hadFreeTrial: {type: Boolean, default: false}
 
-
 UserSchema.statics.getAllIds = (callback)->
 	this.find {}, ["first_name"], callback
 

services/web/app/views/subscriptions/group/invite.jade

@@ -0,0 +1,25 @@
+extends ../../layout
+
+block scripts
+	script(type='text/javascript').
+		window.subscription_id = '#{subscription_id}'
+
+block content
+	.content.content-alt
+		.container
+			.row
+				.col-md-8.col-md-offset-2(ng-cloak)
+					.card(ng-controller="GroupSubscriptionInviteController")
+						.page-header
+							h1 You are invited to Join #{licenceName}
+						span(ng-show="!requestSent")
+							div You can claim a free premium account provided by #{licenceName} by verifying your email
+
+							a.btn.btn-default(href="/project") Skip 
+							 
+							a.btn.btn.btn-primary(ng-click="joinGroup()") Verify email and join Group
+
+						span(ng-show="requestSent")
+							div Check your email to complete joinging the group
+
+							a.btn(href="/project") Continue to projects

services/web/config/settings.defaults.coffee

@@ -349,6 +349,10 @@ module.exports =
 	
 	reloadModuleViewsOnEachRequest: true
 
+	domainLicences: [
+		{"domains":["gmail.com"], "adminUser_id":"555208e6ce4812e7d2319daa", "subscription_id":"555c6d1eb844bfb3964e0629", "name":"HENRYS AMAZING LICENCE"}
+	]
+
 	# ShareLaTeX Server Pro options (https://www.sharelatex.com/university/onsite.html)
 	# ----------
 

services/web/public/coffee/main.coffee

@@ -15,6 +15,7 @@ define [
 	"main/new-subscription"
 	"main/annual-upgrade"
 	"main/register-users"
+	"main/subscription/group-subscription-invite-controller"
 	"analytics/AbTestingManager"
 	"directives/asyncForm"
 	"directives/stopPropagation"

services/web/public/coffee/main/subscription/group-subscription-invite-controller.coffee

@@ -0,0 +1,14 @@
+define [
+	"base"
+], (App) ->
+	App.controller "GroupSubscriptionInviteController", ($scope, $http) ->
+
+		$scope.requestSent = false
+
+		$scope.joinGroup = ->
+			console.log "joingin group"
+			request = $http.post "/user/subscription/#{subscription_id}/group/begin_join", {_csrf:window.csrfToken}
+			request.success (data, status)->
+				$scope.requestSent = true
+			request.error (data, status)->
+				console.log "the request failed"