From cc01c906ba63b3797bf2b9ef92a6854fe2ddbefb Mon Sep 17 00:00:00 2001
From: Igor Scheller <igor.scheller@igorshp.de>
Date: Tue, 29 Aug 2017 16:21:25 +0200
Subject: #336: Integration of symfony/http-foundation request

---
 composer.json                                    |   5 +-
 config/config.default.php                        |   5 +-
 includes/controller/angeltypes_controller.php    |   2 +-
 includes/controller/shift_entries_controller.php |   2 +-
 includes/controller/shifts_controller.php        |  25 ++--
 includes/controller/users_controller.php         |  12 +-
 includes/engelsystem_provider.php                |   5 +-
 includes/helper/internationalization_helper.php  |  14 ++-
 includes/pages/admin_groups.php                  |   5 +-
 includes/pages/admin_news.php                    |   7 +-
 includes/pages/admin_rooms.php                   |  13 ++-
 includes/pages/admin_shifts.php                  |  10 +-
 includes/pages/admin_user.php                    |  40 +++----
 includes/pages/guest_login.php                   |   8 +-
 includes/pages/user_atom.php                     |  17 +--
 includes/pages/user_news.php                     |  10 +-
 includes/pages/user_settings.php                 |   8 +-
 includes/pages/user_shifts.php                   |   4 +-
 includes/sys_form.php                            |   9 +-
 includes/sys_menu.php                            |  18 +--
 includes/sys_page.php                            |  14 ++-
 phpunit.xml                                      |  15 +--
 public/index.php                                 |   8 +-
 src/Exceptions/Handler.php                       |  56 ++++++++-
 src/Http/Request.php                             | 138 ++---------------------
 src/Routing/UrlGenerator.php                     |  27 +++++
 src/helpers.php                                  |  11 ++
 27 files changed, 230 insertions(+), 258 deletions(-)
 create mode 100644 src/Routing/UrlGenerator.php

diff --git a/composer.json b/composer.json
index d2e0108b..e6d20108 100644
--- a/composer.json
+++ b/composer.json
@@ -16,10 +16,11 @@
     "require": {
         "php": ">=5.6.4",
         "erusev/parsedown": "1.6.*",
-        "twbs/bootstrap": "^3.3"
+        "twbs/bootstrap": "^3.3",
+        "symfony/http-foundation": "^3.3"
     },
     "require-dev": {
-        "phpunit/phpunit": "^6.2"
+        "phpunit/phpunit": "^6.3"
     },
     "autoload": {
         "psr-4": {
diff --git a/config/config.default.php b/config/config.default.php
index c3a939cd..a0303b15 100644
--- a/config/config.default.php
+++ b/config/config.default.php
@@ -20,9 +20,6 @@ return [
     // Set to development to enable debugging messages
     'environment'      => 'production',
 
-    // Site URL, used to generate links on page (https://example.com/[sub-dir/])
-    'url'              => null,
-
     // URL to the angel faq and job description
     'faq_url'          => 'https://events.ccc.de/congress/2013/wiki/Static:Volunteers',
 
@@ -58,7 +55,7 @@ return [
     //  Blowfish    '$2y$13'
     //  SHA-256     '$5$rounds=5000'
     //  SHA-512     '$6$rounds=5000'
-    'crypt_alg'        => '$6$rounds=5000', // SHA-512
+    'crypt_alg'        => '$6$rounds=5000',
 
     'min_password_length'     => 8,
 
diff --git a/includes/controller/angeltypes_controller.php b/includes/controller/angeltypes_controller.php
index d60b6fc7..8c1cbe5d 100644
--- a/includes/controller/angeltypes_controller.php
+++ b/includes/controller/angeltypes_controller.php
@@ -127,7 +127,7 @@ function angeltype_edit_controller()
 
         if (!$supporter_mode) {
             if ($request->has('name')) {
-                $result = AngelType_validate_name($request->get('name'), $angeltype);
+                $result = AngelType_validate_name($request->postData('name'), $angeltype);
                 $angeltype['name'] = $result->getValue();
                 if (!$result->isValid()) {
                     $valid = false;
diff --git a/includes/controller/shift_entries_controller.php b/includes/controller/shift_entries_controller.php
index 38aad5bb..3890241d 100644
--- a/includes/controller/shift_entries_controller.php
+++ b/includes/controller/shift_entries_controller.php
@@ -27,10 +27,10 @@ function shift_entry_add_controller()
     }
 
     $shift = Shift($shift_id);
-    $shift['Name'] = $room_array[$shift['RID']];
     if ($shift == null) {
         redirect(page_link_to('user_shifts'));
     }
+    $shift['Name'] = $room_array[$shift['RID']];
 
     $type_id = 0;
     if ($request->has('type_id') && preg_match('/^\d*$/', $request->input('type_id'))) {
diff --git a/includes/controller/shifts_controller.php b/includes/controller/shifts_controller.php
index f4f3f119..f68f64fe 100644
--- a/includes/controller/shifts_controller.php
+++ b/includes/controller/shifts_controller.php
@@ -62,7 +62,7 @@ function shift_edit_controller()
     $angeltypes = select_array(AngelTypes(), 'id', 'name');
     $shifttypes = select_array(ShiftTypes(), 'id', 'name');
 
-    $needed_angel_types = select_array(NeededAngelTypes_by_shift($shift_id), 'id', 'count');
+    $needed_angel_types = select_array(NeededAngelTypes_by_shift($shift_id), 'angel_type_id', 'count');
     foreach (array_keys($angeltypes) as $angeltype_id) {
         if (!isset($needed_angel_types[$angeltype_id])) {
             $needed_angel_types[$angeltype_id] = 0;
@@ -117,15 +117,20 @@ function shift_edit_controller()
             $msg .= error(_('The ending time has to be after the starting time.'), true);
         }
 
-        foreach ($needed_angel_types as $needed_angeltype_id => $needed_angeltype_name) {
-            if ($request->has('type_' . $needed_angeltype_id) && test_request_int('type_' . $needed_angeltype_id)) {
-                $needed_angel_types[$needed_angeltype_id] = trim($request->input('type_' . $needed_angeltype_id));
-            } else {
-                $valid = false;
-                $msg .= error(sprintf(
-                    _('Please check your input for needed angels of type %s.'),
-                    $needed_angeltype_name
-                ), true);
+        foreach ($needed_angel_types as $needed_angeltype_id => $count) {
+            $needed_angel_types[$needed_angeltype_id] = 0;
+
+            $queryKey = 'type_' . $needed_angeltype_id;
+            if ($request->has($queryKey)) {
+                if (test_request_int($queryKey)) {
+                    $needed_angel_types[$needed_angeltype_id] = trim($request->input($queryKey));
+                } else {
+                    $valid = false;
+                    $msg .= error(sprintf(
+                        _('Please check your input for needed angels of type %s.'),
+                        $angeltypes[$needed_angeltype_id]
+                    ), true);
+                }
             }
         }
 
diff --git a/includes/controller/users_controller.php b/includes/controller/users_controller.php
index 6dc74d68..b8a1fdbd 100644
--- a/includes/controller/users_controller.php
+++ b/includes/controller/users_controller.php
@@ -47,7 +47,7 @@ function user_delete_controller()
     $request = request();
 
     if ($request->has('user_id')) {
-        $user_source = User($request->get('user_id'));
+        $user_source = User($request->query->get('user_id'));
     } else {
         $user_source = $user;
     }
@@ -68,7 +68,7 @@ function user_delete_controller()
         if (
         !(
             $request->has('password')
-            && verify_password($request->post('password'), $user['Passwort'], $user['UID'])
+            && verify_password($request->postData('password'), $user['Passwort'], $user['UID'])
         )
         ) {
             $valid = false;
@@ -307,9 +307,9 @@ function user_password_recovery_set_new_controller()
 
         if (
             $request->has('password')
-            && strlen($request->post('password')) >= config('min_password_length')
+            && strlen($request->postData('password')) >= config('min_password_length')
         ) {
-            if ($request->post('password') != $request->post('password2')) {
+            if ($request->postData('password') != $request->postData('password2')) {
                 $valid = false;
                 error(_('Your passwords don\'t match.'));
             }
@@ -319,7 +319,7 @@ function user_password_recovery_set_new_controller()
         }
 
         if ($valid) {
-            set_password($user_source['UID'], $request->post('password'));
+            set_password($user_source['UID'], $request->postData('password'));
             success(_('Password saved.'));
             redirect(page_link_to('login'));
         }
@@ -363,7 +363,7 @@ function user_password_recovery_start_controller()
                 _('Password recovery'),
                 sprintf(
                     _('Please visit %s to recover your password.'),
-                    page_link_to_absolute('user_password_recovery', ['token' => $token])
+                    page_link_to('user_password_recovery', ['token' => $token])
                 )
             );
             success(_('We sent an email containing your password recovery link.'));
diff --git a/includes/engelsystem_provider.php b/includes/engelsystem_provider.php
index c065d332..e6b457d9 100644
--- a/includes/engelsystem_provider.php
+++ b/includes/engelsystem_provider.php
@@ -32,9 +32,10 @@ date_default_timezone_set($config->get('timezone'));
 
 /**
  * Initialize Request
+ *
+ * @var Request $request
  */
-$request = new Request();
-$request->create($_GET, $_POST, $_SERVER, config('url'));
+$request = Request::createFromGlobals();
 $request::setInstance($request);
 
 /**
diff --git a/includes/helper/internationalization_helper.php b/includes/helper/internationalization_helper.php
index d2dbcdbd..83faabb0 100644
--- a/includes/helper/internationalization_helper.php
+++ b/includes/helper/internationalization_helper.php
@@ -1,5 +1,7 @@
 <?php
 
+use Engelsystem\Http\Request;
+
 /**
  * Return currently active locale
  *
@@ -62,14 +64,20 @@ function gettext_locale($locale = null)
  */
 function make_langselect()
 {
-    $url = $_SERVER['REQUEST_URI'] . (strpos($_SERVER['REQUEST_URI'], '?') > 0 ? '&' : '?') . 'set_locale=';
+    $request = Request::getInstance();
 
     $items = [];
     foreach (config('locales') as $locale => $name) {
+        $url = url($request->getPathInfo(), ['set_locale' => $locale]);
+
         $items[] = toolbar_item_link(
-            htmlspecialchars($url) . $locale,
+            htmlspecialchars($url),
             '',
-            '<img src="pic/flag/' . $locale . '.png" alt="' . $name . '" title="' . $name . '"> ' . $name
+            sprintf(
+                '<img src="%s" alt="%s" title="%2$s"> %2$s',
+                url('pic/flag/' . $locale . '.png'),
+                $name
+            )
         );
     }
     return $items;
diff --git a/includes/pages/admin_groups.php b/includes/pages/admin_groups.php
index d64afe76..1de8bfb7 100644
--- a/includes/pages/admin_groups.php
+++ b/includes/pages/admin_groups.php
@@ -81,7 +81,8 @@ function admin_groups()
                             'privileges[]',
                             $privilege['desc'] . ' (' . $privilege['name'] . ')',
                             $privilege['group_id'] != '',
-                            $privilege['id']
+                            $privilege['id'],
+                            'privilege-' . $privilege['name']
                         );
                         $privileges_html .= sprintf(
                             '<tr><td><input type="checkbox" name="privileges[]" value="%s" %s /></td> <td>%s</td> <td>%s</td></tr>',
@@ -112,7 +113,7 @@ function admin_groups()
                 }
 
                 $group = DB::select('SELECT * FROM `Groups` WHERE `UID`=? LIMIT 1', [$group_id]);
-                $privileges = $request->get('privileges');
+                $privileges = $request->postData('privileges');
                 if (!is_array($privileges)) {
                     $privileges = [];
                 }
diff --git a/includes/pages/admin_news.php b/includes/pages/admin_news.php
index a5354da7..64a54f4b 100644
--- a/includes/pages/admin_news.php
+++ b/includes/pages/admin_news.php
@@ -62,14 +62,15 @@ function admin_news()
                 ',
                 [
                     time(),
-                    $request->post('eBetreff'),
-                    $request->post('eText'),
+                    $request->postData('eBetreff'),
+                    $request->postData('eText'),
                     $user['UID'],
                     $request->has('eTreffen') ? 1 : 0,
                     $news_id
                 ]
             );
-            engelsystem_log('News updated: ' . $request->post('eBetreff'));
+
+            engelsystem_log('News updated: ' . $request->postData('eBetreff'));
             success(_('News entry updated.'));
             redirect(page_link_to('news'));
             break;
diff --git a/includes/pages/admin_rooms.php b/includes/pages/admin_rooms.php
index 8a7720d8..457114a0 100644
--- a/includes/pages/admin_rooms.php
+++ b/includes/pages/admin_rooms.php
@@ -110,11 +110,14 @@ function admin_rooms()
                 }
 
                 foreach ($angeltypes as $angeltype_id => $angeltype) {
-                    if (
-                        $request->has('angeltype_count_' . $angeltype_id)
-                        && preg_match('/^\d{1,4}$/', $request->input('angeltype_count_' . $angeltype_id))
-                    ) {
-                        $angeltypes_count[$angeltype_id] = $request->input('angeltype_count_' . $angeltype_id);
+                    $angeltypes_count[$angeltype_id] = 0;
+                    $queryKey = 'angeltype_count_' . $angeltype_id;
+                    if (!$request->has($queryKey)) {
+                        continue;
+                    }
+
+                    if (preg_match('/^\d{1,4}$/', $request->input($queryKey))) {
+                        $angeltypes_count[$angeltype_id] = $request->input($queryKey);
                     } else {
                         $valid = false;
                         $msg .= error(sprintf(_('Please enter needed angels for type %s.'), $angeltype), true);
diff --git a/includes/pages/admin_shifts.php b/includes/pages/admin_shifts.php
index 5b53f9cd..d36635f7 100644
--- a/includes/pages/admin_shifts.php
+++ b/includes/pages/admin_shifts.php
@@ -135,16 +135,14 @@ function admin_shifts()
             } elseif ($request->input('angelmode') == 'manually') {
                 $angelmode = 'manually';
                 foreach ($types as $type) {
-                    if (
-                        $request->has('type_' . $type['id'])
-                        && preg_match('/^\d+$/', trim($request->input('type_' . $type['id'])))
-                    ) {
-                        $needed_angel_types[$type['id']] = trim($request->input('type_' . $type['id']));
+                    if (preg_match('/^\d+$/', trim($request->input('type_' . $type['id'], 0)))) {
+                        $needed_angel_types[$type['id']] = trim($request->input('type_' . $type['id'], 0));
                     } else {
                         $valid = false;
                         error(sprintf(_('Please check the needed angels for team %s.'), $type['name']));
                     }
                 }
+
                 if (array_sum($needed_angel_types) == 0) {
                     $valid = false;
                     error(_('There are 0 angels needed. Please enter the amounts of needed angels.'));
@@ -306,7 +304,7 @@ function admin_shifts()
         }
     } elseif ($request->has('submit')) {
         if (
-            !$request->has('admin_shifts_shifts')
+            !isset($_SESSION['admin_shifts_shifts'])
             || !isset($_SESSION['admin_shifts_types'])
             || !is_array($_SESSION['admin_shifts_shifts'])
             || !is_array($_SESSION['admin_shifts_types'])
diff --git a/includes/pages/admin_user.php b/includes/pages/admin_user.php
index 00113507..aea68f52 100644
--- a/includes/pages/admin_user.php
+++ b/includes/pages/admin_user.php
@@ -261,7 +261,7 @@ function admin_user()
                       `Handy` = ?,
                       `Alter` =?,
                       `DECT` = ?,
-                      ' . ($user_source['email_by_human_allowed'] ? '`email` = ' . DB::getPdo()->quote($request->post('eemail')) . ',' : '') . '
+                      ' . ($user_source['email_by_human_allowed'] ? '`email` = ' . DB::getPdo()->quote($request->postData('eemail')) . ',' : '') . '
                       `jabber` = ?,
                       `Size` = ?,
                       `Gekommen`= ?,
@@ -272,34 +272,34 @@ function admin_user()
                       WHERE `UID` = ?
                       LIMIT 1';
                 DB::update($sql, [
-                    $request->post('eNick'),
-                    $request->post('eName'),
-                    $request->post('eVorname'),
-                    $request->post('eTelefon'),
-                    $request->post('eHandy'),
-                    $request->post('eAlter'),
-                    $request->post('eDECT'),
-                    $request->post('ejabber'),
-                    $request->post('eSize'),
-                    $request->post('eGekommen'),
-                    $request->post('eAktiv'),
+                    $request->postData('eNick'),
+                    $request->postData('eName'),
+                    $request->postData('eVorname'),
+                    $request->postData('eTelefon'),
+                    $request->postData('eHandy'),
+                    $request->postData('eAlter'),
+                    $request->postData('eDECT'),
+                    $request->postData('ejabber'),
+                    $request->postData('eSize'),
+                    $request->postData('eGekommen'),
+                    $request->postData('eAktiv'),
                     $force_active,
-                    $request->post('eTshirt'),
-                    $request->post('Hometown'),
+                    $request->postData('eTshirt'),
+                    $request->postData('Hometown'),
                     $user_id,
                 ]);
                 engelsystem_log(
-                    'Updated user: ' . $request->post('eNick') . ', ' . $request->post('eSize')
-                    . ', arrived: ' . $request->post('eVorname')
-                    . ', active: ' . $request->post('eAktiv')
-                    . ', tshirt: ' . $request->post('eTshirt')
+                    'Updated user: ' . $request->postData('eNick') . ', ' . $request->postData('eSize')
+                    . ', arrived: ' . $request->postData('eVorname')
+                    . ', active: ' . $request->postData('eAktiv')
+                    . ', tshirt: ' . $request->postData('eTshirt')
                 );
                 $html .= success('Änderung wurde gespeichert...' . "\n", true);
                 break;
 
             case 'change_pw':
-                if ($request->post('new_pw') != '' && $request->post('new_pw') == $request->post('new_pw2')) {
-                    set_password($user_id, $request->post('new_pw'));
+                if ($request->postData('new_pw') != '' && $request->postData('new_pw') == $request->postData('new_pw2')) {
+                    set_password($user_id, $request->postData('new_pw'));
                     $user_source = User($user_id);
                     engelsystem_log('Set new password for ' . User_Nick_render($user_source));
                     $html .= success('Passwort neu gesetzt.', true);
diff --git a/includes/pages/guest_login.php b/includes/pages/guest_login.php
index b83b8382..3966b55c 100644
--- a/includes/pages/guest_login.php
+++ b/includes/pages/guest_login.php
@@ -127,8 +127,8 @@ function guest_register()
             }
         }
 
-        if ($request->has('password') && strlen($request->post('password')) >= $min_password_length) {
-            if ($request->post('password') != $request->post('password2')) {
+        if ($request->has('password') && strlen($request->postData('password')) >= $min_password_length) {
+            if ($request->postData('password') != $request->postData('password2')) {
                 $valid = false;
                 $msg .= error(_('Your passwords don\'t match.'), true);
             }
@@ -234,7 +234,7 @@ function guest_register()
             // Assign user-group and set password
             $user_id = DB::getPdo()->lastInsertId();
             DB::insert('INSERT INTO `UserGroups` (`uid`, `group_id`) VALUES (?, -2)', [$user_id]);
-            set_password($user_id, $request->post('password'));
+            set_password($user_id, $request->postData('password'));
 
             // Assign angel-types
             $user_angel_types_info = [];
@@ -403,7 +403,7 @@ function guest_login()
             if (count($login_user) > 0) {
                 $login_user = $login_user[0];
                 if ($request->has('password')) {
-                    if (!verify_password($request->post('password'), $login_user['Passwort'], $login_user['UID'])) {
+                    if (!verify_password($request->postData('password'), $login_user['Passwort'], $login_user['UID'])) {
                         $valid = false;
                         error(_('Your password is incorrect.  Please try it again.'));
                     }
diff --git a/includes/pages/user_atom.php b/includes/pages/user_atom.php
index 98ace9cc..2991bdbf 100644
--- a/includes/pages/user_atom.php
+++ b/includes/pages/user_atom.php
@@ -1,6 +1,7 @@
 <?php
 
 use Engelsystem\Database\DB;
+use Engelsystem\Http\Request;
 
 /**
  * Publically available page to feed the news to feed readers
@@ -44,14 +45,15 @@ function user_atom()
  */
 function make_atom_entries_from_news($news_entries)
 {
+    $request = Request::getInstance();
     $html = '<?xml version="1.0" encoding="utf-8"?>
   <feed xmlns="http://www.w3.org/2005/Atom">
   <title>Engelsystem</title>
-  <id>' . $_SERVER['HTTP_HOST']
+  <id>' . $request->getHttpHost()
         . htmlspecialchars(preg_replace(
             '#[&?]key=[a-f\d]{32}#',
             '',
-            $_SERVER['REQUEST_URI']
+            $request->getRequestUri()
         ))
         . '</id>
   <updated>' . date('Y-m-d\TH:i:sP', $news_entries[0]['Datum']) . '</updated>' . "\n";
@@ -64,11 +66,12 @@ function make_atom_entries_from_news($news_entries)
 
 function make_atom_entry_from_news($news_entry)
 {
-    return '  <entry>
+    return '
+  <entry>
     <title>' . htmlspecialchars($news_entry['Betreff']) . '</title>
-    <link href="' . page_link_to_absolute('news_comments', ['nid' => $news_entry['ID']]) . '"/>
-      <id>' . preg_replace('#^https?://#', '', page_link_to_absolute('news')) . '-' . $news_entry['ID'] . '</id>
-      <updated>' . date('Y-m-d\TH:i:sP', $news_entry['Datum']) . '</updated>
+    <link href="' . page_link_to('news_comments', ['nid' => $news_entry['ID']]) . '"/>
+    <id>' . preg_replace('#^https?://#', '', page_link_to('news_comments', ['nid' => $news_entry['ID']])) . '</id>
+    <updated>' . date('Y-m-d\TH:i:sP', $news_entry['Datum']) . '</updated>
     <summary>' . htmlspecialchars($news_entry['Text']) . '</summary>
-    </entry>' . "\n";
+  </entry>' . "\n";
 }
diff --git a/includes/pages/user_news.php b/includes/pages/user_news.php
index 2dd141ec..bdbb0645 100644
--- a/includes/pages/user_news.php
+++ b/includes/pages/user_news.php
@@ -186,9 +186,9 @@ function user_news()
 
     $html = '<div class="col-md-12"><h1>' . news_title() . '</h1>' . msg();
 
-    $isMeeting = $request->post('treffen');
+    $isMeeting = $request->postData('treffen');
     if ($request->has('text') && $request->has('betreff') && in_array('admin_news', $privileges)) {
-        if (!$request->has('treffen') || !in_array('admin_news', $privileges)) {
+        if (!$request->has('treffen')) {
             $isMeeting = 0;
         }
         DB::insert('
@@ -197,13 +197,13 @@ function user_news()
             ',
             [
                 time(),
-                $request->post('betreff'),
-                $request->post('text'),
+                $request->postData('betreff'),
+                $request->postData('text'),
                 $user['UID'],
                 $isMeeting,
             ]
         );
-        engelsystem_log('Created news: ' . $_POST['betreff'] . ', treffen: ' . $isMeeting);
+        engelsystem_log('Created news: ' . $request->postData('betreff') . ', treffen: ' . $isMeeting);
         success(_('Entry saved.'));
         redirect(page_link_to('news'));
     }
diff --git a/includes/pages/user_settings.php b/includes/pages/user_settings.php
index 667e73d9..9a43f5ce 100644
--- a/includes/pages/user_settings.php
+++ b/includes/pages/user_settings.php
@@ -101,14 +101,14 @@ function user_settings_password($user_source)
     $request = request();
     if (
         !$request->has('password')
-        || !verify_password($request->post('password'), $user_source['Passwort'], $user_source['UID'])
+        || !verify_password($request->postData('password'), $user_source['Passwort'], $user_source['UID'])
     ) {
         error(_('-> not OK. Please try again.'));
-    } elseif (strlen($request->post('new_password')) < config('min_password_length')) {
+    } elseif (strlen($request->postData('new_password')) < config('min_password_length')) {
         error(_('Your password is to short (please use at least 6 characters).'));
-    } elseif ($request->post('new_password') != $request->post('new_password2')) {
+    } elseif ($request->postData('new_password') != $request->postData('new_password2')) {
         error(_('Your passwords don\'t match.'));
-    } elseif (set_password($user_source['UID'], $request->post('new_password'))) {
+    } elseif (set_password($user_source['UID'], $request->postData('new_password'))) {
         success(_('Password saved.'));
     } else {
         error(_('Failed setting password.'));
diff --git a/includes/pages/user_shifts.php b/includes/pages/user_shifts.php
index cd18a037..db0bb193 100644
--- a/includes/pages/user_shifts.php
+++ b/includes/pages/user_shifts.php
@@ -229,8 +229,8 @@ function view_user_shifts()
                 'shifts_table'  => msg() . $shiftCalendarRenderer->render(),
                 'ical_text'     => '<h2>' . _('iCal export') . '</h2><p>' . sprintf(
                         _('Export of shown shifts. <a href="%s">iCal format</a> or <a href="%s">JSON format</a> available (please keep secret, otherwise <a href="%s">reset the api key</a>).'),
-                        page_link_to_absolute('ical', ['key' => $user['api_key']]),
-                        page_link_to_absolute('shifts_json_export', ['key' => $user['api_key']]),
+                        page_link_to('ical', ['key' => $user['api_key']]),
+                        page_link_to('shifts_json_export', ['key' => $user['api_key']]),
                         page_link_to('user_myshifts', ['reset' => 1])
                     ) . '</p>',
                 'filter'        => _('Filter')
diff --git a/includes/sys_form.php b/includes/sys_form.php
index 936e3203..78e97792 100644
--- a/includes/sys_form.php
+++ b/includes/sys_form.php
@@ -144,10 +144,15 @@ function form_multi_checkboxes($names, $label, $items, $selected, $disabled = []
  * @param string $label
  * @param string $selected
  * @param string $value
+ * @param string $id
  * @return string
  */
-function form_checkbox($name, $label, $selected, $value = 'checked')
+function form_checkbox($name, $label, $selected, $value = 'checked', $id = null)
 {
+    if (is_null($id)) {
+        $id = $name;
+    }
+
     return '<div class="checkbox"><label>'
         . '<input type="checkbox" id="' . $name . '" name="' . $name . '" value="' . $value . '" '
         . ($selected ? ' checked="checked"' : '') . ' /> '
@@ -374,7 +379,7 @@ function form_element($label, $input, $for = '')
  */
 function form($elements, $action = '')
 {
-    return '<form role="form" action="' . $action . '" enctype="multipart/form-data" method="post">' . join($elements) . '</form>';
+    return '<form action="' . $action . '" enctype="multipart/form-data" method="post">' . join($elements) . '</form>';
 }
 
 /**
diff --git a/includes/sys_menu.php b/includes/sys_menu.php
index f809be0b..2eaa1234 100644
--- a/includes/sys_menu.php
+++ b/includes/sys_menu.php
@@ -9,24 +9,8 @@ use Engelsystem\UserHintsRenderer;
  */
 function page_link_to($page = '', $parameters = [])
 {
-    $parameters = http_build_query($parameters);
-    $page = ltrim($page, '/');
     $page = str_replace('_', '-', $page);
-    return '/' . $page . (!empty($parameters) ? '?' . $parameters : '');
-}
-
-/**
- * @TODO: remove?
- * @param string $page
- * @param array  $parameters get parameters
- * @return string
- */
-function page_link_to_absolute($page, $parameters = [])
-{
-    return (isset($_SERVER['HTTPS']) ? 'https' : 'http') . '://'
-        . $_SERVER['HTTP_HOST']
-        . preg_replace("/\?.*$/", '', $_SERVER['REQUEST_URI'])
-        . page_link_to($page, $parameters);
+    return url($page, $parameters);
 }
 
 /**
diff --git a/includes/sys_page.php b/includes/sys_page.php
index 501106ff..df57d08a 100644
--- a/includes/sys_page.php
+++ b/includes/sys_page.php
@@ -1,4 +1,5 @@
 <?php
+
 use Engelsystem\ValidationResult;
 
 /**
@@ -168,11 +169,8 @@ function strip_request_item($name, $default_value = null)
  */
 function test_request_int($name)
 {
-    $request = request();
-    if ($request->has($name)) {
-        return preg_match('/^\d*$/', $request->input($name));
-    }
-    return false;
+    $input = request()->input($name);
+    return preg_match('/^\d*$/', $input);
 }
 
 /**
@@ -186,7 +184,11 @@ function strip_request_item_nl($name, $default_value = null)
 {
     $request = request();
     if ($request->has($name)) {
-        return preg_replace("/([^\p{L}\p{S}\p{P}\p{Z}\p{N}+\n]{1,})/ui", '', strip_tags($request->get($name)));
+        return preg_replace(
+            "/([^\p{L}\p{S}\p{P}\p{Z}\p{N}+\n]{1,})/ui",
+            '',
+            strip_tags($request->input($name))
+        );
     }
     return $default_value;
 }
diff --git a/phpunit.xml b/phpunit.xml
index b868096c..ff6eb120 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -1,12 +1,8 @@
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/4.5/phpunit.xsd"
-         backupGlobals="false"
          bootstrap="./includes/engelsystem_provider.php"
+         xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/6.3/phpunit.xsd"
          colors="true"
-         convertErrorsToExceptions="true"
-         convertNoticesToExceptions="true"
-         convertWarningsToExceptions="true"
-         processIsolation="false">
+>
     <testsuites>
         <testsuite name="Models">
             <directory>./test/model/</directory>
@@ -16,10 +12,7 @@
         <whitelist>
             <directory>./include/</directory>
             <directory>./public/</directory>
-						<directory>./src/</directory>
-				</whitelist>
+            <directory>./src/</directory>
+        </whitelist>
     </filter>
-    <php>
-        <const name="PHPUNIT_TESTSUITE" value="true"/>
-    </php>
 </phpunit>
diff --git a/public/index.php b/public/index.php
index 10fecaff..a83ab5e8 100644
--- a/public/index.php
+++ b/public/index.php
@@ -1,4 +1,7 @@
 <?php
+
+use Engelsystem\Http\Request;
+
 require_once realpath(__DIR__ . '/../includes/engelsystem_provider.php');
 
 $free_pages = [
@@ -24,12 +27,13 @@ $page = '';
 $title = '';
 $content = '';
 
-$page = $request->input('p');
+/** @var Request $request */
+$page = $request->query->get('p');
 if (empty($page)) {
     $page = $request->path();
     $page = str_replace('-', '_', $page);
 }
-if (empty($page)) {
+if ($page == '/') {
     $page = isset($user) ? 'news' : 'login';
 }
 
diff --git a/src/Exceptions/Handler.php b/src/Exceptions/Handler.php
index 0532a7d8..6e5b4749 100644
--- a/src/Exceptions/Handler.php
+++ b/src/Exceptions/Handler.php
@@ -34,7 +34,9 @@ class Handler
      */
     public function errorHandler($number, $string, $file, $line, $context)
     {
-        $this->handle('error', $number, $string, $file, $line, $context);
+        $trace = array_reverse(debug_backtrace());
+
+        $this->handle('error', $number, $string, $file, $line, $context, $trace);
     }
 
     /**
@@ -59,8 +61,9 @@ class Handler
      * @param string $file
      * @param int    $line
      * @param array  $context
+     * @param array  $trace
      */
-    protected function handle($type, $number, $string, $file, $line, $context = [])
+    protected function handle($type, $number, $string, $file, $line, $context = [], $trace = [])
     {
         error_log(sprintf('%s: Number: %s, String: %s, File: %s:%u, Context: %s',
             $type,
@@ -71,13 +74,16 @@ class Handler
             json_encode($context)
         ));
 
+        $file = $this->stripBasePath($file);
+
         if ($this->environment == self::ENV_DEVELOPMENT) {
-            echo '<pre style="background-color:#333;color:#ccc;z-index:1000;position:fixed;bottom:1em;padding:1em;width:97%;overflow-y:auto;">';
+            echo '<pre style="background-color:#333;color:#ccc;z-index:1000;position:fixed;bottom:1em;padding:1em;width:97%;max-height: 90%;overflow-y:auto;">';
             echo sprintf('%s: (%s)' . PHP_EOL, ucfirst($type), $number);
             var_export([
-                'string'  => $string,
-                'file'    => $file . ':' . $line,
-                'context' => ($this->environment == self::ENV_DEVELOPMENT ? $context : null),
+                'string'     => $string,
+                'file'       => $file . ':' . $line,
+                'context'    => $context,
+                'stacktrace' => $this->formatStackTrace($trace),
             ]);
             echo '</pre>';
             die();
@@ -87,6 +93,44 @@ class Handler
         die();
     }
 
+    /**
+     * @param array $stackTrace
+     * @return array
+     */
+    protected function formatStackTrace($stackTrace)
+    {
+        $return = [];
+
+        foreach ($stackTrace as $trace) {
+            $path = '';
+            $line = '';
+
+            if (isset($trace['file']) && isset($trace['line'])) {
+                $path = $this->stripBasePath($trace['file']);
+                $line = $trace['line'];
+            }
+
+            $functionName = $trace['function'];
+
+            $return[] = [
+                'file'        => $path . ':' . $line,
+                $functionName => $trace['args'],
+            ];
+        }
+
+        return $return;
+    }
+
+    /**
+     * @param string $path
+     * @return string
+     */
+    protected function stripBasePath($path)
+    {
+        $basePath = realpath(__DIR__ . '/../..') . '/';
+        return str_replace($basePath, '', $path);
+    }
+
     /**
      * @param string $environment
      */
diff --git a/src/Http/Request.php b/src/Http/Request.php
index ded1c95b..f0235d45 100644
--- a/src/Http/Request.php
+++ b/src/Http/Request.php
@@ -3,97 +3,13 @@
 namespace Engelsystem\Http;
 
 use ErrorException;
+use Symfony\Component\HttpFoundation\Request as SymfonyRequest;
 
-class Request
+class Request extends SymfonyRequest
 {
     /** @var self */
     protected static $instance;
 
-    /** @var array of GET data */
-    protected $query;
-
-    /** @var array of POST data */
-    protected $request;
-
-    /** @var array of SERVER data */
-    protected $server;
-
-    /** @var string */
-    protected $scheme;
-
-    /** @var string */
-    protected $host;
-
-    /** @var string */
-    protected $baseUrl = '';
-
-    /** @var string */
-    protected $path;
-
-    /**
-     * Initialize request
-     *
-     * @param array  $query   The GET data
-     * @param array  $request the POST data
-     * @param array  $server  the SERVER data
-     * @param string $baseUrl base url to use for links
-     */
-    public function create(array $query, array $request, array $server, $baseUrl = null)
-    {
-        $this->query = $query;
-        $this->request = $request;
-        $this->server = array_merge([
-            'SERVER_NAME' => 'localhost',
-            'HTTP_HOST'   => 'localhost',
-            'SERVER_PORT' => 80,
-            'REQUEST_URI' => '/',
-        ], $server);
-
-        if (isset($this->server['HTTPS']) && $this->server['HTTPS'] == 'off') {
-            unset($this->server['HTTPS']);
-        }
-
-        $uri = $this->server['REQUEST_URI'];
-        $uri = '/' . ltrim($uri, '/');
-        $uri = explode('?', $uri);
-        $this->path = array_shift($uri);
-
-        $components = parse_url($baseUrl);
-        if (!$components) {
-            $components = [];
-        }
-
-        $this->scheme = (isset($components['scheme']) ? $components['scheme'] : ($this->isSecure() ? 'https' : 'http'));
-        $this->host = (isset($components['host']) ? $components['host'] : $this->server['SERVER_NAME']);
-
-        if (isset($components['path'])) {
-            $this->baseUrl = '/' . ltrim($components['path'], '/');
-            $this->path = preg_replace('~^' . preg_quote($this->baseUrl, '~') . '~i', '', $this->path);
-            $this->path = '/' . ltrim($this->path, '/');
-        }
-    }
-
-    public function isSecure()
-    {
-        return isset($this->server['HTTPS']);
-    }
-
-    /**
-     * Get GET input
-     *
-     * @param string $key
-     * @param mixed  $default
-     * @return mixed
-     */
-    public function get($key, $default = null)
-    {
-        if (!empty($this->query[$key])) {
-            return $this->query[$key];
-        }
-
-        return $default;
-    }
-
     /**
      * Get POST input
      *
@@ -101,13 +17,9 @@ class Request
      * @param mixed  $default
      * @return mixed
      */
-    public function post($key, $default = null)
+    public function postData($key, $default = null)
     {
-        if (!empty($this->request[$key])) {
-            return $this->request[$key];
-        }
-
-        return $default;
+        return $this->request->get($key, $default);
     }
 
     /**
@@ -119,13 +31,7 @@ class Request
      */
     public function input($key, $default = null)
     {
-        $data = $this->request + $this->query;
-
-        if (!empty($data[$key])) {
-            return $data[$key];
-        }
-
-        return $default;
+        return $this->get($key, $default);
     }
 
     /**
@@ -148,41 +54,19 @@ class Request
      */
     public function path()
     {
-        // @TODO: base uri?
-        return $this->path;
-    }
+        $pattern = trim($this->getPathInfo(), '/');
 
-    public function url()
-    {
-        return $this->getSchemeAndHttpHost() . $this->getBaseUrl() . '/' . $this->path();
+        return $pattern == '' ? '/' : $pattern;
     }
 
     /**
+     * Return the current URL
+     *
      * @return string
      */
-    public function root()
-    {
-        return $this->baseUrl;
-    }
-
-    public function getSchemeAndHttpHost()
-    {
-        return $this->getScheme() . '://' . $this->getHttpHost();
-    }
-
-    public function getScheme()
-    {
-        return $this->scheme;
-    }
-
-    public function getHttpHost()
-    {
-        return $this->host;
-    }
-
-    public function getBaseUrl()
+    public function url()
     {
-        return $this->baseUrl;
+        return rtrim(preg_replace('/\?.*/', '', $this->getUri()), '/');
     }
 
     /**
diff --git a/src/Routing/UrlGenerator.php b/src/Routing/UrlGenerator.php
new file mode 100644
index 00000000..8dc464c6
--- /dev/null
+++ b/src/Routing/UrlGenerator.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace Engelsystem\Routing;
+
+use Engelsystem\Http\Request;
+
+class UrlGenerator
+{
+    /**
+     * @param string $path
+     * @param array  $parameters
+     * @return string
+     */
+    public static function to($path, $parameters = [])
+    {
+        $path = '/' . ltrim($path, '/');
+        $request = Request::getInstance();
+        $uri = $request->getUriForPath($path);
+
+        if (!empty($parameters) && is_array($parameters)) {
+            $parameters = http_build_query($parameters);
+            $uri .= '?' . $parameters;
+        }
+
+        return $uri;
+    }
+}
diff --git a/src/helpers.php b/src/helpers.php
index d44d1d21..af0e802b 100644
--- a/src/helpers.php
+++ b/src/helpers.php
@@ -4,6 +4,7 @@
 use Engelsystem\Config\Config;
 use Engelsystem\Http\Request;
 use Engelsystem\Renderer\Renderer;
+use Engelsystem\Routing\UrlGenerator;
 
 /**
  * Get or set config values
@@ -56,3 +57,13 @@ function view($template = null, $data = null)
 
     return $renderer->render($template, $data);
 }
+
+/**
+ * @param string $path
+ * @param array  $parameters
+ * @return string
+ */
+function url($path, $parameters = [])
+{
+    return UrlGenerator::to($path, $parameters);
+}
-- 
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