diff --git a/mod/invite.php b/mod/invite.php
deleted file mode 100644
index e8901d071..000000000
--- a/mod/invite.php
+++ /dev/null
@@ -1,158 +0,0 @@
-<?php
-/**
- * Module: invite.php
- *
- * Send email invitations to join social network
- *
- */
-
-use Friendica\App;
-use Friendica\BaseModule;
-use Friendica\Core\Config;
-use Friendica\Core\L10n;
-use Friendica\Core\PConfig;
-use Friendica\Core\Renderer;
-use Friendica\Core\System;
-use Friendica\Module\Register;
-use Friendica\Protocol\Email;
-use Friendica\Util\Strings;
-
-function invite_post(App $a)
-{
-	if (! local_user()) {
-		notice(L10n::t('Permission denied.') . EOL);
-		return;
-	}
-
-	BaseModule::checkFormSecurityTokenRedirectOnError('/', 'send_invite');
-
-	$max_invites = intval(Config::get('system', 'max_invites'));
-	if (! $max_invites) {
-		$max_invites = 50;
-	}
-
-	$current_invites = intval(PConfig::get(local_user(), 'system', 'sent_invites'));
-	if ($current_invites > $max_invites) {
-		notice(L10n::t('Total invitation limit exceeded.') . EOL);
-		return;
-	}
-
-
-	$recipients  = !empty($_POST['recipients']) ? explode("\n", $_POST['recipients']) : [];
-	$message     = !empty($_POST['message'])    ? Strings::escapeTags(trim($_POST['message']))     : '';
-
-	$total = 0;
-	$invitation_only = false;
-	$invites_remaining = null;
-
-	if (Config::get('system', 'invitation_only')) {
-		$invitation_only = true;
-		$invites_remaining = PConfig::get(local_user(), 'system', 'invites_remaining');
-		if ((! $invites_remaining) && (! is_site_admin())) {
-			return;
-		}
-	}
-
-	foreach ($recipients as $recipient) {
-		$recipient = trim($recipient);
-
-		if (!filter_var($recipient, FILTER_VALIDATE_EMAIL)) {
-			notice(L10n::t('%s : Not a valid email address.', $recipient) . EOL);
-			continue;
-		}
-
-		if ($invitation_only && ($invites_remaining || is_site_admin())) {
-			$code = Friendica\Model\Register::createForInvitation();
-			$nmessage = str_replace('$invite_code', $code, $message);
-
-			if (! is_site_admin()) {
-				$invites_remaining --;
-				if ($invites_remaining >= 0) {
-					PConfig::set(local_user(), 'system', 'invites_remaining', $invites_remaining);
-				} else {
-					return;
-				}
-			}
-		} else {
-			$nmessage = $message;
-		}
-
-		$additional_headers = 'From: ' . $a->user['email'] . "\n"
-			. 'Sender: ' . $a->getSenderEmailAddress() . "\n"
-			. 'Content-type: text/plain; charset=UTF-8' . "\n"
-			. 'Content-transfer-encoding: 8bit';
-
-		$res = mail(
-			$recipient,
-			Email::encodeHeader(L10n::t('Please join us on Friendica'), 'UTF-8'),
-			$nmessage,
-			$additional_headers);
-
-		if ($res) {
-			$total ++;
-			$current_invites ++;
-			PConfig::set(local_user(), 'system', 'sent_invites', $current_invites);
-			if ($current_invites > $max_invites) {
-				notice(L10n::t('Invitation limit exceeded. Please contact your site administrator.') . EOL);
-				return;
-			}
-		} else {
-			notice(L10n::t('%s : Message delivery failed.', $recipient) . EOL);
-		}
-
-	}
-	notice(L10n::tt("%d message sent.", "%d messages sent.", $total) . EOL);
-	return;
-}
-
-function invite_content(App $a) {
-
-	if (! local_user()) {
-		notice(L10n::t('Permission denied.') . EOL);
-		return;
-	}
-
-	$tpl = Renderer::getMarkupTemplate('invite.tpl');
-	$invonly = false;
-
-	if (Config::get('system', 'invitation_only')) {
-		$invonly = true;
-		$x = PConfig::get(local_user(), 'system', 'invites_remaining');
-		if ((! $x) && (! is_site_admin())) {
-			notice(L10n::t('You have no more invitations available') . EOL);
-			return '';
-		}
-	}
-
-	$dirloc = Config::get('system', 'directory');
-	if (strlen($dirloc)) {
-		if (intval(Config::get('config', 'register_policy')) === Register::CLOSED) {
-			$linktxt = L10n::t('Visit %s for a list of public sites that you can join. Friendica members on other sites can all connect with each other, as well as with members of many other social networks.', $dirloc . '/servers');
-		} else {
-			$linktxt = L10n::t('To accept this invitation, please visit and register at %s or any other public Friendica website.', System::baseUrl())
-			. "\r\n" . "\r\n" . L10n::t('Friendica sites all inter-connect to create a huge privacy-enhanced social web that is owned and controlled by its members. They can also connect with many traditional social networks. See %s for a list of alternate Friendica sites you can join.', $dirloc . '/servers');
-		}
-	} else { // there is no global directory URL defined
-		if (intval(Config::get('config', 'register_policy')) === Register::CLOSED) {
-			$o = L10n::t('Our apologies. This system is not currently configured to connect with other public sites or invite members.');
-			return $o;
-		} else {
-			$linktxt = L10n::t('To accept this invitation, please visit and register at %s.', System::baseUrl()
-			. "\r\n" . "\r\n" . L10n::t('Friendica sites all inter-connect to create a huge privacy-enhanced social web that is owned and controlled by its members. They can also connect with many traditional social networks.'));
-		}
-	}
-
-	$o = Renderer::replaceMacros($tpl, [
-		'$form_security_token' => BaseModule::getFormSecurityToken("send_invite"),
-		'$title'               => L10n::t('Send invitations'),
-		'$recipients'          => ['recipients', L10n::t('Enter email addresses, one per line:')],
-		'$message'             => ['message', L10n::t('Your message:'),L10n::t('You are cordially invited to join me and other close friends on Friendica - and help us to create a better social web.') . "\r\n" . "\r\n"
-			. $linktxt
-			. "\r\n" . "\r\n" . (($invonly) ? L10n::t('You will need to supply this invitation code: $invite_code') . "\r\n" . "\r\n" : '') .L10n::t('Once you have registered, please connect with me via my profile page at:')
-			. "\r\n" . "\r\n" . System::baseUrl() . '/profile/' . $a->user['nickname']
-			. "\r\n" . "\r\n" . L10n::t('For more information about the Friendica project and why we feel it is important, please visit http://friendi.ca') . "\r\n" . "\r\n"],
-		'$submit'              => L10n::t('Submit')
-	]);
-
-	return $o;
-}
diff --git a/src/App/Router.php b/src/App/Router.php
index d35977dde..088f8dfdd 100644
--- a/src/App/Router.php
+++ b/src/App/Router.php
@@ -126,6 +126,7 @@ class Router
 		$this->routeCollector->addRoute(['GET'],         '/hashtag',             Module\Hashtag::class);
 		$this->routeCollector->addRoute(['GET'],         '/home',                Module\Home::class);
 		$this->routeCollector->addRoute(['GET'],         '/inbox[/{nickname}]',  Module\Inbox::class);
+		$this->routeCollector->addRoute(['GET', 'POST'], '/invite',              Module\Invite::class);
 		$this->routeCollector->addGroup('/install', function (RouteCollector $collector) {
 			$collector->addRoute(['GET', 'POST'], '[/]',                         Module\Install::class);
 			$collector->addRoute(['GET'],         '/testrewrite',                Module\Install::class);
diff --git a/src/Module/Invite.php b/src/Module/Invite.php
new file mode 100644
index 000000000..7860c703c
--- /dev/null
+++ b/src/Module/Invite.php
@@ -0,0 +1,160 @@
+<?php
+
+namespace Friendica\Module;
+
+use Friendica\BaseModule;
+use Friendica\Core\L10n;
+use Friendica\Core\PConfig;
+use Friendica\Core\Renderer;
+use Friendica\Model;
+use Friendica\Network\HTTPException;
+use Friendica\Protocol\Email;
+use Friendica\Util\Strings;
+
+/**
+ * Invite people to friendica
+ */
+class Invite extends BaseModule
+{
+	public static function post()
+	{
+		if (!local_user()) {
+			throw new HTTPException\ForbiddenException(L10n::t('Permission denied.'));
+		}
+
+		self::checkFormSecurityTokenRedirectOnError('/', 'send_invite');
+
+		$app = self::getApp();
+		$config = $app->getConfig();
+
+		$max_invites = intval($config->get('system', 'max_invites'));
+		if (!$max_invites) {
+			$max_invites = 50;
+		}
+
+		$current_invites = intval(PConfig::get(local_user(), 'system', 'sent_invites'));
+		if ($current_invites > $max_invites) {
+			throw new HTTPException\ForbiddenException(L10n::t('Total invitation limit exceeded.'));
+		}
+
+
+		$recipients = !empty($_POST['recipients']) ? explode("\n", $_POST['recipients']) : [];
+		$message = !empty($_POST['message']) ? Strings::escapeTags(trim($_POST['message'])) : '';
+
+		$total = 0;
+		$invitation_only = false;
+		$invites_remaining = null;
+
+		if ($config->get('system', 'invitation_only')) {
+			$invitation_only = true;
+			$invites_remaining = PConfig::get(local_user(), 'system', 'invites_remaining');
+			if ((!$invites_remaining) && (!is_site_admin())) {
+				throw new HTTPException\ForbiddenException();
+			}
+		}
+
+		foreach ($recipients as $recipient) {
+			$recipient = trim($recipient);
+
+			if (!filter_var($recipient, FILTER_VALIDATE_EMAIL)) {
+				notice(L10n::t('%s : Not a valid email address.', $recipient) . EOL);
+				continue;
+			}
+
+			if ($invitation_only && ($invites_remaining || is_site_admin())) {
+				$code = Model\Register::createForInvitation();
+				$nmessage = str_replace('$invite_code', $code, $message);
+
+				if (!is_site_admin()) {
+					$invites_remaining--;
+					if ($invites_remaining >= 0) {
+						PConfig::set(local_user(), 'system', 'invites_remaining', $invites_remaining);
+					} else {
+						return;
+					}
+				}
+			} else {
+				$nmessage = $message;
+			}
+
+			$additional_headers = 'From: ' . $app->user['email'] . "\n"
+				. 'Sender: ' . $app->getSenderEmailAddress() . "\n"
+				. 'Content-type: text/plain; charset=UTF-8' . "\n"
+				. 'Content-transfer-encoding: 8bit';
+
+			$res = mail(
+				$recipient,
+				Email::encodeHeader(L10n::t('Please join us on Friendica'), 'UTF-8'),
+				$nmessage,
+				$additional_headers);
+
+			if ($res) {
+				$total++;
+				$current_invites++;
+				PConfig::set(local_user(), 'system', 'sent_invites', $current_invites);
+				if ($current_invites > $max_invites) {
+					notice(L10n::t('Invitation limit exceeded. Please contact your site administrator.') . EOL);
+					return;
+				}
+			} else {
+				notice(L10n::t('%s : Message delivery failed.', $recipient) . EOL);
+			}
+
+		}
+		notice(L10n::tt('%d message sent.', '%d messages sent.', $total) . EOL);
+	}
+
+	public static function content()
+	{
+		if (!local_user()) {
+			throw new HTTPException\ForbiddenException(L10n::t('Permission denied.'));
+		}
+
+		$app = self::getApp();
+		$config = $app->getConfig();
+
+		$inviteOnly = false;
+
+		if ($config->get('system', 'invitation_only')) {
+			$inviteOnly = true;
+			$x = PConfig::get(local_user(), 'system', 'invites_remaining');
+			if ((!$x) && (!is_site_admin())) {
+				throw new HTTPException\ForbiddenException(L10n::t('You have no more invitations available'));
+			}
+		}
+
+		$dirLocation = $config->get('system', 'directory');
+		if (strlen($dirLocation)) {
+			if ($config->get('config', 'register_policy') === Register::CLOSED) {
+				$linkTxt = L10n::t('Visit %s for a list of public sites that you can join. Friendica members on other sites can all connect with each other, as well as with members of many other social networks.', $dirLocation . '/servers');
+			} else {
+				$linkTxt = L10n::t('To accept this invitation, please visit and register at %s or any other public Friendica website.', $app->getBaseURL())
+					. "\r\n" . "\r\n" . L10n::t('Friendica sites all inter-connect to create a huge privacy-enhanced social web that is owned and controlled by its members. They can also connect with many traditional social networks. See %s for a list of alternate Friendica sites you can join.', $dirLocation . '/servers');
+			}
+		} else { // there is no global directory URL defined
+			if ($config->get('config', 'register_policy') === Register::CLOSED) {
+				return L10n::t('Our apologies. This system is not currently configured to connect with other public sites or invite members.');
+			} else {
+				$linkTxt = L10n::t('To accept this invitation, please visit and register at %s.', $app->getBaseURL()
+					. "\r\n" . "\r\n" . L10n::t('Friendica sites all inter-connect to create a huge privacy-enhanced social web that is owned and controlled by its members. They can also connect with many traditional social networks.'));
+			}
+		}
+
+		$tpl = Renderer::getMarkupTemplate('invite.tpl');
+		return Renderer::replaceMacros($tpl, [
+			'$form_security_token' => self::getFormSecurityToken('send_invite'),
+			'$title'               => L10n::t('Send invitations'),
+			'$recipients'          => ['recipients', L10n::t('Enter email addresses, one per line:')],
+			'$message'             => [
+				'message',
+				L10n::t('Your message:'),
+				L10n::t('You are cordially invited to join me and other close friends on Friendica - and help us to create a better social web.') . "\r\n" . "\r\n"
+				. $linkTxt
+				. "\r\n" . "\r\n" . (($inviteOnly) ? L10n::t('You will need to supply this invitation code: $invite_code') . "\r\n" . "\r\n" : '') . L10n::t('Once you have registered, please connect with me via my profile page at:')
+				. "\r\n" . "\r\n" . $app->getBaseURL() . '/profile/' . $app->user['nickname']
+				. "\r\n" . "\r\n" . L10n::t('For more information about the Friendica project and why we feel it is important, please visit http://friendi.ca') . "\r\n" . "\r\n",
+			],
+			'$submit'              => L10n::t('Submit')
+		]);
+	}
+}