Make rainloop use internal auth

core/admin/mailu/internal/nginx.py

@@ -7,7 +7,6 @@ import ipaddress
 import socket
 import tenacity
 
-
 SUPPORTED_AUTH_METHODS = ["none", "plain"]
 
 
@@ -49,11 +48,19 @@ def handle_authentication(headers):
         user = models.User.query.get(user_email)
         status = False
         if user:
-            for token in user.tokens:
-                if (token.check_password(password) and
-                    (not token.ip or token.ip == ip)):
-                        status = True
-            if user.check_password(password):
+            # webmails
+            if len(password) == 64 and ip == app.config['WEBMAIL_ADDRESS']:
+                if user.verify_temp_token(password):
+                    status = True
+
+            # All tokens are 32 characters hex lowercase
+            if len(password) == 32:
+                for token in user.tokens:
+                    if (token.check_password(password) and
+                        (not token.ip or token.ip == ip)):
+                            status = True
+                            break
+            if not status and user.check_password(password):
                 status = True
             if status:
                 if protocol == "imap" and not user.enable_imap:

core/admin/mailu/internal/views/auth.py

@@ -43,6 +43,18 @@ def admin_authentication():
         return ""
     return flask.abort(403)
 
+@internal.route("/auth/user")
+def user_authentication():
+    """ Fails if the user is not authenticated.
+    """
+    if (not flask_login.current_user.is_anonymous
+        and flask_login.current_user.enabled):
+        response = flask.Response()
+        response.headers["X-User"] = flask_login.current_user.get_id()
+        response.headers["X-User-Token"] = models.User.get_temp_token(flask_login.current_user.get_id())
+        return response
+    return flask.abort(403)
+
 
 @internal.route("/auth/basic")
 def basic_authentication():

core/admin/mailu/models.py

@@ -12,6 +12,7 @@ import re
 import time
 import os
 import glob
+import hmac
 import smtplib
 import idna
 import dns
@@ -425,6 +426,15 @@ class User(Base, Email):
         user = cls.query.get(email)
         return user if (user and user.enabled and user.check_password(password)) else None
 
+    @classmethod
+    def get_temp_token(cls, email):
+        user = cls.query.get(email)
+        return hmac.new(bytearray(app.secret_key,'utf-8'), bytearray("{}|{}".format(datetime.utcnow().strftime("%Y%m%d"), email), 'utf-8'), 'sha256').hexdigest() if (user and user.enabled) else None
+
+    def verify_temp_token(self, token):
+        return hmac.compare_digest(b''.fromhex(self.get_temp_token(self.email)), b''.fromhex(token))
+
+
 
 class Alias(Base, Email):
     """ An alias is an email address that redirects to some destination.

core/admin/mailu/ui/views/base.py

@@ -47,6 +47,9 @@ def announcement():
         flask.flash('Your announcement was sent', 'success')
     return flask.render_template('announcement.html', form=form)
 
+@ui.route('/webmail', methods=['GET'])
+def webmail():
+    return flask.redirect(app.config['WEB_WEBMAIL'])
 
 @ui.route('/client', methods=['GET'])
 def client():

core/nginx/conf/nginx.conf

@@ -133,7 +133,27 @@ http {
         {% endif %}
         include /etc/nginx/proxy.conf;
         client_max_body_size {{ MESSAGE_SIZE_LIMIT|int + 8388608 }};
+        auth_request /internal/auth/user;
         proxy_pass http://$webmail;
+        error_page 403 @webmail_login;
+      }
+      location {{ WEB_WEBMAIL }}/sso.php {
+        {% if WEB_WEBMAIL != '/' %}
+        rewrite ^({{ WEB_WEBMAIL }})$ $1/ permanent;
+        rewrite ^{{ WEB_WEBMAIL }}/(.*) /$1 break;
+        {% endif %}
+        include /etc/nginx/proxy.conf;
+        client_max_body_size {{ MESSAGE_SIZE_LIMIT|int + 8388608 }};
+        auth_request /internal/auth/user;
+        auth_request_set $user $upstream_http_x_user;
+        auth_request_set $token $upstream_http_x_user_token;
+        proxy_set_header X-Remote-User $user;
+        proxy_set_header X-Remote-User-Token $token;
+        proxy_pass http://$webmail;
+        error_page 403 @webmail_login;
+      }
+      location @webmail_login {
+        return 302 {{ WEB_ADMIN }}/ui/login?next=ui.webmail;
       }
       {% endif %}
 

webmails/rainloop/Dockerfile

@@ -35,6 +35,7 @@ RUN apt-get update && apt-get install -y \
  && rm -rf /var/lib/apt/lists
 
 COPY include.php /var/www/html/include.php
+COPY sso.php /var/www/html/sso.php
 COPY php.ini /php.ini
 
 COPY application.ini /application.ini

webmails/rainloop/application.ini

@@ -7,6 +7,8 @@ attachment_size_limit = {{ MAX_FILESIZE }}
 allow_admin_panel = Off
 
 [labs]
+custom_login_link='sso.php'
+custom_logout_link='{{ WEB_ADMIN }}/ui/logout'
 allow_gravatar = Off
 
 [contacts]

webmails/rainloop/sso.php

@@ -0,0 +1,31 @@
+<?php
+
+$_ENV['RAINLOOP_INCLUDE_AS_API'] = true;
+if (!defined('APP_VERSION')) {
+	$version = file_get_contents('/data/VERSION');
+	if ($version) {
+		define('APP_VERSION', $version);
+		define('APP_INDEX_ROOT_FILE', __FILE__);
+		define('APP_INDEX_ROOT_PATH', str_replace('\\', '/', rtrim(dirname(__FILE__), '\\/').'/'));
+	}
+}
+
+if (file_exists(APP_INDEX_ROOT_PATH.'rainloop/v/'.APP_VERSION.'/include.php')) {
+	include APP_INDEX_ROOT_PATH.'rainloop/v/'.APP_VERSION.'/include.php';
+} else {
+	echo '[105] Missing version directory';
+	exit(105);
+}
+
+// Retrieve email and password
+if (in_array('HTTP_X_REMOTE_USER', $_SERVER) && in_array('HTTP_X_REMOTE_USER_TOKEN', $_SERVER)) {
+	$email = $_SERVER['HTTP_X_REMOTE_USER'];
+	$password = $_SERVER['HTTP_X_REMOTE_USER_TOKEN'];
+	$ssoHash = \RainLoop\Api::GetUserSsoHash($email, $password);
+
+	// redirect to webmail sso url
+	header('Location: index.php?sso&hash='.$ssoHash);
+}
+else {
+	header('HTTP/1.0 403 Forbidden');
+}

webmails/rainloop/start.py

@@ -24,6 +24,7 @@ conf.jinja("/application.ini", os.environ, "/data/_data_/_default_/configs/appli
 conf.jinja("/php.ini", os.environ, "/usr/local/etc/php/conf.d/rainloop.ini")
 
 os.system("chown -R www-data:www-data /data")
+os.system("chmod -R a+rX /var/www/html/")
 
 os.execv("/usr/local/bin/apache2-foreground", ["apache2-foreground"])