closes #3271

public/language/en_GB/email.json

@@ -2,6 +2,8 @@
 	"password-reset-requested": "Password Reset Requested - %1!",
 	"welcome-to": "Welcome to %1",
 
+	"invite": "Invitation from %1",
+
 	"greeting_no_name": "Hello",
 	"greeting_with_name": "Hello %1",
 
@@ -10,6 +12,9 @@
 	"welcome.text3": "An administrator has accepted your registration application. You can login with your username/password now.",
 	"welcome.cta": "Click here to confirm your email address",
 
+	"invitation.text1": "%1 has invited you to join %2",
+	"invitation.ctr": "Click here to create your account.",
+
 	"reset.text1": "We received a request to reset your password, possibly because you have forgotten it. If this is not the case, please ignore this email.",
 	"reset.text2": "To continue with the password reset, please click on the following link:",
 	"reset.cta": "Click here to reset your password",

public/language/en_GB/users.json

@@ -8,5 +8,7 @@
 	"users-found-search-took": "%1 user(s) found! Search took %2 seconds.",
 	"filter-by": "Filter By",
 	"online-only": "Online only",
-	"picture-only": "Picture only"
+	"picture-only": "Picture only",
+	"invite": "Invite",
+	"invitation-email-sent": "An invitation email has been sent to %1"
 }

public/src/client/register.js

@@ -24,6 +24,12 @@ define('forum/register', ['csrf', 'translator'], function(csrf, translator) {
 			}
 		});
 
+		var query = utils.params();
+		if (query.email && query.token) {
+			email.val(query.email);
+			$('#token').val(query.token);
+		}
+
 		// Update the "others can mention you via" text
 		username.on('keyup', function() {
 			$('#yourUsername').text(this.value.length > 0 ? utils.slugify(this.value) : 'username');

public/src/client/users.js

@@ -22,6 +22,8 @@ define('forum/users', ['translator'], function(translator) {
 
 		handleSearch();
 
+		handleInvite();
+
 		socket.removeListener('event:user_status_change', onUserStatusChange);
 		socket.on('event:user_status_change', onUserStatusChange);
 
@@ -200,5 +202,22 @@ define('forum/users', ['translator'], function(translator) {
 		return parts[parts.length - 1];
 	}
 
+	function handleInvite() {
+		$('[component="user/invite"]').on('click', function() {
+			bootbox.prompt('Email: ', function(email) {
+				if (!email) {
+					return;
+				}
+
+				socket.emit('user.invite', email, function(err) {
+					if (err) {
+						return app.alertError(err.message);
+					}
+					app.alertSuccess('[[users:invitation-email-sent, ' + email + ']]');
+				});
+			});
+		});
+	}
+
 	return Users;
 });

src/controllers/authentication.js

@@ -33,6 +33,14 @@ authenticationController.register = function(req, res, next) {
 	var uid;
 	async.waterfall([
 		function(next) {
+			if (registrationType === 'invite-only') {
+				user.verifyInvitation(userData, next);
+			} else {
+				next();
+			}
+		},
+		function(next) {
+			console.log(userData);
 			if (!userData.email) {
 				return next(new Error('[[error:invalid-email]]'));
 			}
@@ -55,7 +63,7 @@ authenticationController.register = function(req, res, next) {
 			plugins.fireHook('filter:register.check', {req: req, res: res, userData: userData}, next);
 		},
 		function(data, next) {
-			if (registrationType === 'normal') {
+			if (registrationType === 'normal' || registrationType === 'invite-only') {
 				registerAndLoginUser(req, res, userData, next);
 			} else if (registrationType === 'admin-approval') {
 				addToApprovalQueue(req, res, userData, next);
@@ -83,6 +91,8 @@ function registerAndLoginUser(req, res, userData, callback) {
 		function(next) {
 			user.logIP(uid, req.ip);
 
+			user.deleteInvitation(userData.email);
+
 			user.notifications.sendWelcomeNotification(uid);
 
 			plugins.fireHook('filter:register.complete', {uid: uid, referrer: req.body.referrer || nconf.get('relative_path') + '/'}, next);

src/controllers/index.js

@@ -98,20 +98,20 @@ Controllers.register = function(req, res, next) {
 		return helpers.notFound(req, res);
 	}
 
-	var data = {},
-		loginStrategies = require('../routes/authentication').getLoginStrategies();
-
-	if (loginStrategies.length === 0) {
-		data = {
-			'register_window:spansize': 'col-md-12',
-			'alternate_logins': false
-		};
+	async.waterfall([
+		function(next) {
+			if (registrationType === 'invite-only') {
+				user.verifyInvitation(req.query, next);
 			} else {
-		data = {
-			'register_window:spansize': 'col-md-6',
-			'alternate_logins': true
-		};
+				next();
 			}
+		},
+		function(next) {
+			var loginStrategies = require('../routes/authentication').getLoginStrategies();
+			var data = {
+				'register_window:spansize': loginStrategies.length ? 'col-md-6' : 'col-md-12',
+				'alternate_logins': !!loginStrategies.length
+			};
 
 			data.authentication = loginStrategies;
 
@@ -123,9 +123,10 @@ Controllers.register = function(req, res, next) {
 			data.regFormEntry = [];
 			data.error = req.flash('error')[0];
 
-	plugins.fireHook('filter:register.build', {req: req, res: res, templateData: data}, function(err, data) {
-		if (err && global.env === 'development') {
-			winston.warn(JSON.stringify(err));
+			plugins.fireHook('filter:register.build', {req: req, res: res, templateData: data}, next);
+		}
+	], function(err, data) {
+		if (err) {
 			return next(err);
 		}
 		res.render('register', data.templateData);

src/controllers/users.js

@@ -122,6 +122,7 @@ function render(req, res, data, next) {
 		if (err) {
 			return next(err);
 		}
+		data.templateData.inviteOnly = meta.config.registrationType === 'invite-only';
 		res.render('users', data.templateData);
 	});
 }

src/emailer.js

@@ -20,48 +20,62 @@ var	fs = require('fs'),
 	};
 
 	Emailer.send = function(template, uid, params, callback) {
-		if (!callback) { callback = function() {}; }
+		callback = callback || function() {};
 		if (!app) {
 			winston.warn('[emailer] App not ready!');
 			return callback();
 		}
 
+		async.waterfall([
+			function(next) {
+				async.parallel({
+					email: async.apply(User.getUserField, uid, 'email'),
+					settings: async.apply(User.getSettings, uid)
+				}, next);
+			},
+			function(results, next) {
+				if (!results.email) {
+					winston.warn('uid : ' + uid + ' has no email, not sending.');
+					return next();
+				}
+				params.uid = uid;
+				Emailer.sendToEmail(template, results.email, results.settings.userLang, params, next);
+			}
+		], callback);
+	};
+
+	Emailer.sendToEmail = function(template, email, language, params, callback) {
+		callback = callback || function() {};
 		async.parallel({
 			html: function(next) {
 				app.render('emails/' + template, params, next);
 			},
 			plaintext: function(next) {
 				app.render('emails/' + template + '_plaintext', params, next);
-			},
-			email: async.apply(User.getUserField, uid, 'email'),
-			settings: async.apply(User.getSettings, uid)
+			}
 		}, function(err, results) {
 			if (err) {
 				winston.error('[emailer] Error sending digest : ' + err.stack);
 				return callback(err);
 			}
 			async.map([results.html, results.plaintext, params.subject], function(raw, next) {
-				translator.translate(raw, results.settings.userLang || meta.config.defaultLang || 'en_GB', function(translated) {
+				translator.translate(raw, language || meta.config.defaultLang || 'en_GB', function(translated) {
 					next(undefined, translated);
 				});
 			}, function(err, translated) {
 				if (err) {
-					winston.error(err.message);
 					return callback(err);
-				} else if (!results.email) {
-					winston.warn('uid : ' + uid + ' has no email, not sending.');
-					return callback();
 				}
 
 				if (Plugins.hasListeners('action:email.send')) {
 					Plugins.fireHook('action:email.send', {
-						to: results.email,
+						to: email,
 						from: meta.config['email:from'] || 'no-reply@localhost.lan',
 						subject: translated[2],
 						html: translated[0],
 						plaintext: translated[1],
 						template: template,
-						uid: uid,
+						uid: params.uid,
 						pid: params.pid,
 						fromUid: params.fromUid
 					});
@@ -72,6 +86,10 @@ var	fs = require('fs'),
 				}
 			});
 		});
+
 	};
+
+
+
 }(module.exports));
 

src/socket.io/user.js

@@ -495,6 +495,17 @@ SocketUser.setStatus = function(socket, status, callback) {
 	});
 };
 
-/* Exports */
+SocketUser.invite = function(socket, email, callback) {
+	if (!email || !socket.uid) {
+		return callback(new Error('[[error:invald-data]]'));
+	}
+
+	if (meta.config.registrationType !== 'invite-only') {
+		return callback(new Error('[[error:forum-not-invite-only]]'));
+	}
+
+	user.sendInvitationEmail(socket.uid, email, callback);
+};
+
 
 module.exports = SocketUser;

src/user.js

@@ -31,6 +31,7 @@ var	async = require('async'),
 	require('./user/jobs')(User);
 	require('./user/picture')(User);
 	require('./user/approval')(User);
+	require('./user/invite')(User);
 
 	User.getUserField = function(uid, field, callback) {
 		User.getUserFields(uid, [field], function(err, user) {
@@ -509,3 +510,4 @@ var	async = require('async'),
 
 
 }(exports));
+

src/user/invite.js

@@ -0,0 +1,81 @@
+
+'use strict';
+
+var async = require('async'),
+	nconf = require('nconf'),
+	winston = require('winston'),
+	db = require('./../database'),
+
+	meta = require('../meta'),
+	emailer = require('../emailer'),
+
+	plugins = require('../plugins'),
+	translator = require('../../public/src/modules/translator'),
+	utils = require('../../public/src/utils');
+
+
+module.exports = function(User) {
+
+	User.sendInvitationEmail = function(uid, email, callback) {
+		callback = callback || function() {};
+		var token = utils.generateUUID();
+		var registerLink = nconf.get('url') + '/register?token=' + token + '&email=' + email;
+
+		var oneDay = 86400000;
+		async.waterfall([
+			function(next) {
+				db.set('invitation:email:' + email, token, next);
+			},
+			function(next) {
+				db.pexpireAt('invitation:email:' + email, Date.now() + oneDay, next);
+			},
+			function(next) {
+				User.getUserField(uid, 'username', next);
+			},
+			function(username, next) {
+				var title = meta.config.title || meta.config.browserTitle || 'NodeBB';
+				translator.translate('[[email:invite, ' + title + ']]', meta.config.defaultLang, function(subject) {
+					var data = {
+						site_title: title,
+						registerLink: registerLink,
+						subject: subject,
+						username: username,
+						template: 'invitation'
+					};
+
+					if (plugins.hasListeners('action:email.send')) {
+						emailer.sendToEmail('invitation', email, meta.config.defaultLang, data, next);
+					} else {
+						winston.warn('No emailer to send verification email!');
+						next();
+					}
+				});
+			}
+		], callback);
+	};
+
+	User.verifyInvitation = function(query, callback) {
+		if (!query.token || !query.email) {
+			return callback(new Error('[[error:invalid-data]]'));
+		}
+
+		async.waterfall([
+			function(next) {
+				db.get('invitation:email:' + query.email, next);
+			},
+			function(token, next) {
+				if (!token || token !== query.token) {
+					return next(new Error('[[error:invalid-token]]'));
+				}
+
+				next();
+			}
+		], callback);
+	};
+
+	User.deleteInvitation = function(email, callback) {
+		callback = callback || function() {};
+		db.delete('invitation:email:' + email, callback);
+	};
+
+};

src/views/admin/settings/user.tpl

@@ -39,6 +39,7 @@
 				<select class="form-control" data-field="registrationType">
 					<option value="normal">Normal</option>
 					<option value="admin-approval">Admin Approval</option>
+					<option value="invite-only">Invite Only</option>
 					<option value="disabled">No registration</option>
 				</select>
 			</div>

src/views/emails/invitation.tpl

@@ -0,0 +1,14 @@
+<p>[[email:greeting_no_name]],</p>
+
+<p>
+	<strong>[[email:invitation.text1, {username}, {site_title}]]</strong>
+</p>
+
+<blockquote>
+	<a href="{registerLink}">[[email:invitation.ctr]]</a>
+</blockquote>
+
+<p>
+	[[email:closing]]<br />
+	<strong>{site_title}</strong>
+</p>

src/views/emails/invitation_plaintext.tpl

@@ -0,0 +1,11 @@
+[[email:greeting_no_name]],
+
+[[email:invitation.text1, {username}, {site_title}]]
+
+[[email:invitation.ctr]]
+
+	{registerLink}
+
+[[email:closing]]
+{site_title}
+