diff --git a/.travis.yml b/.travis.yml
index e9cda58..a5bd74a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,6 @@
+git:
+  depth: 3
+
 language: php
 sudo: false
 
diff --git a/README.markdown b/README.markdown
index c68a7ac..515fa9d 100644
--- a/README.markdown
+++ b/README.markdown
@@ -1,8 +1,8 @@
-[![Build Status](https://travis-ci.org/miniflux/miniflux.svg?branch=master)](https://travis-ci.org/miniflux/miniflux)
-
 Miniflux - Minimalist News Reader
 =================================
 
+[![Build Status](https://travis-ci.org/miniflux/miniflux.svg?branch=master)](https://travis-ci.org/miniflux/miniflux)
+
 Miniflux is a minimalist and web-based RSS reader.
 
 Features
diff --git a/lib/Request.php b/lib/Request.php
index 45ba7f7..e4a66ed 100644
--- a/lib/Request.php
+++ b/lib/Request.php
@@ -2,6 +2,12 @@
 
 namespace Request;
 
+function get_server_variable($variable)
+{
+    return isset($_SERVER[$variable]) ? $_SERVER[$variable] : '';
+}
+
+
 function param($name, $default_value = null)
 {
     return isset($_GET[$name]) ? $_GET[$name] : $default_value;
@@ -53,7 +59,6 @@ function file_content($field)
 }
 
 
-
 function uri()
 {
     return $_SERVER['REQUEST_URI'];
@@ -64,3 +69,35 @@ function is_post()
 {
     return $_SERVER['REQUEST_METHOD'] === 'POST';
 }
+
+
+function get_user_agent()
+{
+    return get_server_variable('HTTP_USER_AGENT') ?: t('Unknown');
+}
+
+
+function get_ip_address()
+{
+    $keys = array(
+        'HTTP_X_REAL_IP',
+        'HTTP_CLIENT_IP',
+        'HTTP_X_FORWARDED_FOR',
+        'HTTP_X_FORWARDED',
+        'HTTP_X_CLUSTER_CLIENT_IP',
+        'HTTP_FORWARDED_FOR',
+        'HTTP_FORWARDED',
+        'REMOTE_ADDR'
+    );
+
+    foreach ($keys as $key) {
+        $value = get_server_variable($key);
+        if ($value !== '') {
+            foreach (explode(',', $value) as $ip_address) {
+                return trim($ip_address);
+            }
+        }
+    }
+
+    return t('Unknown');
+}
diff --git a/lib/helpers.php b/lib/helpers.php
index 42ccaab..c4ca74c 100644
--- a/lib/helpers.php
+++ b/lib/helpers.php
@@ -2,36 +2,6 @@
 
 namespace Helper;
 
-// Get the real IP address of the connected user
-function get_ip_address()
-{
-    $keys = array(
-        'HTTP_X_REAL_IP',
-        'HTTP_CLIENT_IP',
-        'HTTP_X_FORWARDED_FOR',
-        'HTTP_X_FORWARDED',
-        'HTTP_X_CLUSTER_CLIENT_IP',
-        'HTTP_FORWARDED_FOR',
-        'HTTP_FORWARDED',
-        'REMOTE_ADDR'
-    );
-
-    foreach ($keys as $key) {
-        $value = get_server_variable($key);
-        if ($value !== '') {
-            foreach (explode(',', $value) as $ip_address) {
-                return trim($ip_address);
-            }
-        }
-    }
-
-    return t('Unknown');
-}
-
-function get_server_variable($variable)
-{
-    return isset($_SERVER[$variable]) ? $_SERVER[$variable] : '';
-}
 
 function is_secure_connection()
 {
diff --git a/models/config.php b/models/config.php
index 7fb6a7a..a830ad5 100644
--- a/models/config.php
+++ b/models/config.php
@@ -363,9 +363,3 @@ function reload()
     $_SESSION['config'] = get_all();
     Translator\load(get('language'));
 }
-
-// Get the user agent of the connected user
-function get_user_agent()
-{
-    return empty($_SERVER['HTTP_USER_AGENT']) ? t('Unknown') : $_SERVER['HTTP_USER_AGENT'];
-}
diff --git a/models/user.php b/models/user.php
index b2f2b42..260a112 100644
--- a/models/user.php
+++ b/models/user.php
@@ -6,7 +6,7 @@ use SimpleValidator\Validator;
 use SimpleValidator\Validators;
 use PicoDb\Database;
 use Session;
-use Helper;
+use Request;
 use Model\Config;
 use Model\RememberMe;
 use Model\Database as DatabaseModel;
@@ -62,7 +62,7 @@ function validate_login(array $values)
 
             // Setup the remember me feature
             if (! empty($values['remember_me'])) {
-                $cookie = RememberMe\create(DatabaseModel\select(), $values['username'], Helper\get_ip_address(), Config\get_user_agent());
+                $cookie = RememberMe\create(DatabaseModel\select(), $values['username'], Request\get_ip_address(), Request\get_user_agent());
                 RememberMe\write_cookie($cookie['token'], $cookie['sequence'], $cookie['expiration']);
             }
         } else {
diff --git a/tests/unit/HelperTest.php b/tests/unit/HelperTest.php
deleted file mode 100644
index c136348..0000000
--- a/tests/unit/HelperTest.php
+++ /dev/null
@@ -1,13 +0,0 @@
-<?php
-
-class HelperTest extends PHPUnit_Framework_TestCase
-{
-    public function testGetIpAddress()
-    {
-        $_SERVER = array('HTTP_X_REAL_IP' => '127.0.0.1');
-        $this->assertEquals('127.0.0.1', Helper\get_ip_address());
-
-        $_SERVER = array('HTTP_FORWARDED_FOR' => ' 127.0.0.1, 192.168.0.1');
-        $this->assertEquals('127.0.0.1', Helper\get_ip_address());
-    }
-}
diff --git a/tests/unit/RequestTest.php b/tests/unit/RequestTest.php
new file mode 100644
index 0000000..fdd21ea
--- /dev/null
+++ b/tests/unit/RequestTest.php
@@ -0,0 +1,25 @@
+<?php
+
+class RequestTest extends PHPUnit_Framework_TestCase
+{
+    public function testGetIpAddress()
+    {
+        $_SERVER = array('HTTP_X_REAL_IP' => '127.0.0.1');
+        $this->assertEquals('127.0.0.1', Request\get_ip_address());
+
+        $_SERVER = array('HTTP_FORWARDED_FOR' => ' 127.0.0.1, 192.168.0.1');
+        $this->assertEquals('127.0.0.1', Request\get_ip_address());
+
+        $_SERVER = array();
+        $this->assertEquals('Unknown', Request\get_ip_address());
+    }
+
+    public function testGetUserAgent()
+    {
+        $_SERVER = array();
+        $this->assertEquals('Unknown', Request\get_user_agent());
+
+        $_SERVER = array('HTTP_USER_AGENT' => 'foobar');
+        $this->assertEquals('foobar', Request\get_user_agent());
+    }
+}