Merge branch 'reactjs'

.htaccess

@@ -1,8 +1,13 @@
 php_flag display_errors on
 Options -Indexes
 
-RedirectMatch 404 /\.git
+DirectorySlash Off
 
 RewriteEngine On
-RewriteRule ^api/(.*)?$ index.php?api=$1&$2 [L,QSA]
-RewriteRule ^((?!((js|css|img|fonts|api)($|\/)))(.*)?)$ index.php?site=$1&$2 [L,QSA]
+RewriteRule ^api(/.*)?$ /index.php?api=$1 [L,QSA]
+
+RewriteEngine On
+RewriteOptions AllowNoSlash
+RewriteRule ^((\.idea|\.git|src|test|core)(/.*)?)$ /index.php?site=$1 [L,QSA]
+
+FallbackResource /index.php

.idea/.gitignore

@@ -0,0 +1,2 @@
+# Default ignored files
+/workspace.xml

.idea/codeStyles/codeStyleConfig.xml

@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
+  </state>
+</component>

.idea/dictionaries/webbase.xml

@@ -0,0 +1,8 @@
+<component name="ProjectDictionaryState">
+  <dictionary name="webbase">
+    <words>
+      <w>adminlte</w>
+      <w>navbar</w>
+    </words>
+  </dictionary>
+</component>

.idea/misc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="JavaScriptSettings">
+    <option name="languageLevel" value="JSX" />
+  </component>
+</project>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/web-base.iml" filepath="$PROJECT_DIR$/.idea/web-base.iml" />
+    </modules>
+  </component>
+</project>

.idea/php.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="PhpProjectSharedConfiguration" php_language_level="7.4" />
+</project>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

.idea/web-base.iml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

README.md

@@ -1,12 +1,19 @@
 # Web-Base
 
-Web-Base is a php framework which provides basic web functionalities.
+Web-Base is a php framework which provides basic web functionalities and a modern ReactJS Admin Dashboard.
+
+### Requirements
+- PHP >= 7.4
+- One of these php extensions: mysqli, postgres
 
 ### Current Functionalities:
 - Installation Guide with automatic database setup
 - REST API
-- Account managment
-- New: Now supporting MySQL + PostgreSQL
+- Account management
+- Supporting MySQL + PostgreSQL
+- New: Page Routing
+- New: Admin Dashboard
+- New: Account & User functions
 
 ### Upcoming:
 I actually don't know what i want to implement here. There are quite to many CMS out there with alot of vulnerabilities. There also exist some frameworks already. This project is meant to provide a stable project base to implement what ever a developer wants to: Dynamic Homepages, Webshops, ..

core/Api/ApiKey/Create.class.php

@@ -1,44 +0,0 @@
-<?php
-
-namespace Api\ApiKey;
-
-use \Api\Request;
-class Create extends Request {
-
-  public function __construct($user, $externCall = false) {
-    parent::__construct($user, $externCall, array());
-    $this->apiKeyAllowed = false;
-    $this->loginRequired = true;
-  }
-
-  public function execute($values = array()) {
-
-    if(!parent::execute($values)) {
-      return false;
-    }
-
-    $apiKey = generateRandomString(64);
-    $sql = $this->user->getSQL();
-    $validUntil = (new \DateTime())->modify("+30 DAY");
-
-    $this->success = $sql->insert("ApiKey", array("user_id", "api_key", "valid_until"))
-      ->addRow($this->user->getId(), $apiKey, $validUntil)
-      ->returning("uid")
-      ->execute();
-
-    $this->lastError = $sql->getLastError();
-
-    if ($this->success) {
-      $this->result["api_key"] = array(
-        "api_key" => $apiKey,
-        "valid_until" => $validUntil->getTimestamp(),
-        "uid" => $sql->getLastInsertId(),
-      );
-    } else {
-      $this->result["api_key"] = null;
-    }
-    return $this->success;
-  }
-};
-
-?>

core/Api/ApiKey/Fetch.class.php

@@ -1,46 +0,0 @@
-<?php
-
-namespace Api\ApiKey;
-
-use \Api\Request;
-use \Driver\SQL\Condition\Compare;
-
-class Fetch extends Request {
-
-  public function __construct($user, $externCall = false) {
-    parent::__construct($user, $externCall, array());
-    $this->loginRequired = true;
-  }
-
-  public function execute($values = array()) {
-    if(!parent::execute($values)) {
-      return false;
-    }
-
-    $sql = $this->user->getSQL();
-    $res = $sql->select("uid", "api_key", "valid_until")
-      ->from("ApiKey")
-      ->where(new Compare("user_id", $this->user->getId()))
-      ->where(new Compare("valid_until", $sql->currentTimestamp(), ">"))
-      ->where(new Compare("active", true))
-      ->execute();
-
-    $this->success = ($res !== FALSE);
-    $this->lastError = $sql->getLastError();
-
-    if($this->success) {
-      $this->result["api_keys"] = array();
-      foreach($res as $row) {
-        $this->result["api_keys"][] = array(
-          "uid" => $row["uid"],
-          "api_key" => $row["api_key"],
-          "valid_until" => (new \DateTime($row["valid_until"]))->getTimestamp(),
-        );
-      }
-    }
-
-    return $this->success;
-  }
-};
-
-?>

core/Api/ApiKey/Refresh.class.php

@@ -1,67 +0,0 @@
-<?php
-
-namespace Api\ApiKey;
-
-use \Api\Request;
-use \Api\Parameter\Parameter;
-use \Driver\SQL\Condition\Compare;
-
-class Refresh extends Request {
-
-  public function __construct($user, $externCall = false) {
-    parent::__construct($user, $externCall, array(
-      "id" => new Parameter("id", Parameter::TYPE_INT),
-    ));
-    $this->loginRequired = true;
-  }
-
-  private function apiKeyExists() {
-    $id = $this->getParam("id");
-
-    $sql = $this->user->getSQL();
-    $res = $sql->select($sql->count())
-      ->from("ApiKey")
-      ->where(new Compare("uid", $id))
-      ->where(new Compare("user_id", $this->user->getId()))
-      ->where(new Compare("valid_until", $sql->currentTimestamp(), ">"))
-      ->where(new Compare("active", 1))
-      ->execute();
-
-    $this->success = ($res !== FALSE);
-    $this->lastError = $sql->getLastError();
-
-    if($this->success && $res[0]["count"] === 0) {
-      $this->success = false;
-      $this->lastError = "This API-Key does not exist.";
-    }
-
-    return $this->success;
-  }
-
-  public function execute($values = array()) {
-    if(!parent::execute($values)) {
-      return false;
-    }
-
-    $id = $this->getParam("id");
-    if(!$this->apiKeyExists())
-      return false;
-
-    $validUntil = (new \DateTime)->modify("+30 DAY");
-    $sql = $this->user->getSQL();
-    $this->success = $sql->update("ApiKey")
-      ->set("valid_until", $validUntil)
-      ->where(new Compare("uid", $id))
-      ->where(new Compare("user_id", $this->user->getId()))
-      ->execute();
-    $this->lastError = $sql->getLastError();
-
-    if ($this->success) {
-      $this->result["valid_until"] = $validUntil->getTimestamp();
-    }
-
-    return $this->success;
-  }
-};
-
-?>

core/Api/ApiKey/Revoke.class.php

@@ -1,62 +0,0 @@
-<?php
-
-namespace Api\ApiKey;
-
-use \Api\Request;
-use \Api\Parameter\Parameter;
-use \Driver\SQL\Condition\Compare;
-
-class Revoke extends Request {
-
-  public function __construct($user, $externCall = false) {
-    parent::__construct($user, $externCall, array(
-      "id" => new Parameter("id", Parameter::TYPE_INT),
-    ));
-    $this->loginRequired = true;
-  }
-
-  private function apiKeyExists() {
-    $id = $this->getParam("id");
-
-    $sql = $this->user->getSQL();
-    $res = $sql->select($sql->count())
-      ->from("ApiKey")
-      ->where(new Compare("uid", $id))
-      ->where(new Compare("user_id", $this->user->getId()))
-      ->where(new Compare("valid_until", $sql->currentTimestamp(), ">"))
-      ->where(new Compare("active", 1))
-      ->execute();
-
-    $this->success = ($res !== FALSE);
-    $this->lastError = $sql->getLastError();
-
-    if($this->success && $res[0]["count"] === 0) {
-      $this->success = false;
-      $this->lastError = "This API-Key does not exist.";
-    }
-
-    return $this->success;
-  }
-
-  public function execute($aValues = array()) {
-    if(!parent::execute($aValues)) {
-      return false;
-    }
-
-    $id = $this->getParam("id");
-    if(!$this->apiKeyExists())
-      return false;
-
-    $sql = $this->user->getSQL();
-    $this->success = $sql->update("ApiKey")
-      ->set("active", false)
-      ->where(new Compare("uid", $id))
-      ->where(new Compare("user_id", $this->user->getId()))
-      ->execute();
-    $this->lastError = $sql->getLastError();
-
-    return $this->success;
-  }
-};
-
-?>

core/Api/ApiKeyAPI.class.php

@@ -0,0 +1,187 @@
+<?php
+
+namespace Api {
+
+  use Driver\SQL\Condition\Compare;
+
+  abstract class ApiKeyAPI extends Request {
+
+    protected function apiKeyExists($id) {
+      $sql = $this->user->getSQL();
+      $res = $sql->select($sql->count())
+        ->from("ApiKey")
+        ->where(new Compare("uid", $id))
+        ->where(new Compare("user_id", $this->user->getId()))
+        ->where(new Compare("valid_until", $sql->currentTimestamp(), ">"))
+        ->where(new Compare("active", 1))
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if($this->success && $res[0]["count"] === 0) {
+        return $this->createError("This API-Key does not exist.");
+      }
+
+      return $this->success;
+    }
+  }
+}
+
+namespace Api\ApiKey {
+
+  use Api\ApiKeyAPI;
+  use Api\Parameter\Parameter;
+  use DateTime;
+  use Driver\SQL\Condition\Compare;
+  use Exception;
+
+  class Create extends ApiKeyAPI {
+
+    public function __construct($user, $externalCall = false) {
+      parent::__construct($user, $externalCall, array());
+      $this->apiKeyAllowed = false;
+      $this->loginRequired = true;
+    }
+
+    public function execute($values = array()) {
+
+      if(!parent::execute($values)) {
+        return false;
+      }
+
+      $apiKey = generateRandomString(64);
+      $sql = $this->user->getSQL();
+      $validUntil = (new \DateTime())->modify("+30 DAY");
+
+      $this->success = $sql->insert("ApiKey", array("user_id", "api_key", "valid_until"))
+        ->addRow($this->user->getId(), $apiKey, $validUntil)
+        ->returning("uid")
+        ->execute();
+
+      $this->lastError = $sql->getLastError();
+
+      if ($this->success) {
+        $this->result["api_key"] = array(
+          "api_key" => $apiKey,
+          "valid_until" => $validUntil->getTimestamp(),
+          "uid" => $sql->getLastInsertId(),
+        );
+      } else {
+        $this->result["api_key"] = null;
+      }
+      return $this->success;
+    }
+  }
+
+  class Fetch extends ApiKeyAPI {
+
+    public function __construct($user, $externalCall = false) {
+      parent::__construct($user, $externalCall, array());
+      $this->loginRequired = true;
+    }
+
+    public function execute($values = array()) {
+      if(!parent::execute($values)) {
+        return false;
+      }
+
+      $sql = $this->user->getSQL();
+      $res = $sql->select("uid", "api_key", "valid_until")
+        ->from("ApiKey")
+        ->where(new Compare("user_id", $this->user->getId()))
+        ->where(new Compare("valid_until", $sql->currentTimestamp(), ">"))
+        ->where(new Compare("active", true))
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if($this->success) {
+        $this->result["api_keys"] = array();
+        foreach($res as $row) {
+          try {
+            $validUntil = (new DateTime($row["valid_until"]))->getTimestamp();
+          } catch (Exception $e) {
+            $validUntil = $row["valid_until"];
+          }
+
+          $this->result["api_keys"][] = array(
+            "uid" => intval($row["uid"]),
+            "api_key" => $row["api_key"],
+            "valid_until" => $validUntil,
+          );
+        }
+      }
+
+      return $this->success;
+    }
+  }
+
+  class Refresh extends ApiKeyAPI {
+
+    public function __construct($user, $externalCall = false) {
+      parent::__construct($user, $externalCall, array(
+        "id" => new Parameter("id", Parameter::TYPE_INT),
+      ));
+      $this->loginRequired = true;
+    }
+
+    public function execute($values = array()) {
+      if(!parent::execute($values)) {
+        return false;
+      }
+
+      $id = $this->getParam("id");
+      if(!$this->apiKeyExists($id))
+        return false;
+
+      $validUntil = (new \DateTime)->modify("+30 DAY");
+      $sql = $this->user->getSQL();
+      $this->success = $sql->update("ApiKey")
+        ->set("valid_until", $validUntil)
+        ->where(new Compare("uid", $id))
+        ->where(new Compare("user_id", $this->user->getId()))
+        ->execute();
+      $this->lastError = $sql->getLastError();
+
+      if ($this->success) {
+        $this->result["valid_until"] = $validUntil->getTimestamp();
+      }
+
+      return $this->success;
+    }
+  }
+
+  class Revoke extends ApiKeyAPI {
+
+    public function __construct($user, $externalCall = false) {
+      parent::__construct($user, $externalCall, array(
+        "id" => new Parameter("id", Parameter::TYPE_INT),
+      ));
+      $this->loginRequired = true;
+    }
+
+    public function execute($aValues = array()) {
+      if(!parent::execute($aValues)) {
+        return false;
+      }
+
+      $id = $this->getParam("id");
+      if(!$this->apiKeyExists($id))
+        return false;
+
+      $sql = $this->user->getSQL();
+      $this->success = $sql->update("ApiKey")
+        ->set("active", false)
+        ->where(new Compare("uid", $id))
+        ->where(new Compare("user_id", $this->user->getId()))
+        ->execute();
+      $this->lastError = $sql->getLastError();
+
+      return $this->success;
+    }
+  }
+
+
+}

core/Api/ContactAPI.class.php

@@ -0,0 +1,115 @@
+<?php
+
+namespace Api {
+  abstract class ContactAPI extends Request {
+
+  }
+}
+
+namespace Api\Contact {
+
+  use Api\ContactAPI;
+  use Api\Parameter\Parameter;
+  use Api\Parameter\StringType;
+  use Api\VerifyCaptcha;
+  use Objects\User;
+
+  class Request extends ContactAPI {
+
+    private int $notificationId;
+    private int $contactRequestId;
+
+    public function __construct(User $user, bool $externalCall = false) {
+      $parameters = array(
+        'fromName' => new StringType('fromName', 32),
+        'fromEmail' => new Parameter('fromEmail', Parameter::TYPE_EMAIL),
+        'message' => new StringType('message', 512),
+      );
+
+      $settings = $user->getConfiguration()->getSettings();
+      if ($settings->isRecaptchaEnabled()) {
+        $parameters["captcha"] = new StringType("captcha");
+      }
+
+      parent::__construct($user, $externalCall, $parameters);
+    }
+
+    public function execute($values = array()) {
+      if (!parent::execute($values)) {
+        return false;
+      }
+
+      $settings = $this->user->getConfiguration()->getSettings();
+      if ($settings->isRecaptchaEnabled()) {
+        $captcha = $this->getParam("captcha");
+        $req = new VerifyCaptcha($this->user);
+        if (!$req->execute(array("captcha" => $captcha, "action" => "contact"))) {
+          return $this->createError($req->getLastError());
+        }
+      }
+
+      if (!$this->insertContactRequest()) {
+        return false;
+      }
+
+      $this->createNotification();
+
+      if (!$this->success) {
+        return $this->createError("The contact request was saved, but the server was unable to create a notification.");
+      }
+
+      return $this->success;
+    }
+
+    private function insertContactRequest() {
+      $sql = $this->user->getSQL();
+      $name = $this->getParam("fromName");
+      $email = $this->getParam("fromEmail");
+      $message = $this->getParam("message");
+
+      $res = $sql->insert("ContactRequest", array("from_name", "from_email", "message"))
+        ->addRow($name, $email, $message)
+        ->returning("uid")
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if ($this->success) {
+        $this->contactRequestId = $sql->getLastInsertId();
+      }
+
+      return $this->success;
+    }
+
+    private function createNotification() {
+      $sql = $this->user->getSQL();
+      $name = $this->getParam("fromName");
+      $email = $this->getParam("fromEmail");
+      $message = $this->getParam("message");
+
+      $res = $sql->insert("Notification", array("title", "message", "type"))
+        ->addRow("New Contact Request from: $name", "$name ($email) wrote:\n$message", "message")
+        ->returning("uid")
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if ($this->success) {
+        $this->notificationId = $sql->getLastInsertId();
+
+        $res = $sql->insert("GroupNotification", array("group_id", "notification_id"))
+          ->addRow(USER_GROUP_ADMIN, $this->notificationId)
+          ->addRow(USER_GROUP_SUPPORT, $this->notificationId)
+          ->execute();
+
+        $this->success = ($res !== FALSE);
+        $this->lastError = $sql->getLastError();
+      }
+
+      return $this->success;
+    }
+  }
+
+}

core/Api/GetLanguages.class.php

@@ -1,39 +0,0 @@
-<?php
-
-namespace Api;
-
-class GetLanguages extends Request {
-
-  public function __construct($user, $externCall = false) {
-    parent::__construct($user, $externCall, array());
-  }
-
-  public function execute($values = array()) {
-    if(!parent::execute($values)) {
-      return false;
-    }
-
-    $sql = $this->user->getSQL();
-    $res = $sql->select("uid", "code", "name")
-      ->from("Language")
-      ->execute();
-
-    $this->success = ($res !== FALSE);
-    $this->lastError = $sql->getLastError();
-
-    if($this->success) {
-      $this->result['languages'] = array();
-      if(empty($res) === 0) {
-        $this->lastError = L("No languages found");
-      } else {
-        foreach($res as $row) {
-          $this->result['languages'][$row['uid']] = $row;
-        }
-      }
-    }
-
-    return $this->success;
-  }
-};
-
-?>

core/Api/GroupsAPI.class.php

@@ -0,0 +1,194 @@
+<?php
+
+namespace Api {
+
+  use Driver\SQL\Condition\Compare;
+
+  abstract class GroupsAPI extends Request {
+
+    protected function groupExists($name) {
+      $sql = $this->user->getSQL();
+      $res = $sql->select($sql->count())
+        ->from("Group")
+        ->where(new Compare("name", $name))
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+      return $this->success && $res[0]["count"] > 0;
+    }
+  }
+}
+
+namespace Api\Groups {
+
+  use Api\GroupsAPI;
+  use Api\Parameter\Parameter;
+  use Api\Parameter\StringType;
+  use Driver\SQL\Condition\Compare;
+
+  class Fetch extends GroupsAPI {
+
+    private int $groupCount;
+
+    public function __construct($user, $externalCall = false) {
+      parent::__construct($user, $externalCall, array(
+        'page' => new Parameter('page', Parameter::TYPE_INT, true, 1),
+        'count' => new Parameter('count', Parameter::TYPE_INT, true, 20)
+      ));
+
+      $this->groupCount = 0;
+    }
+
+    private function getGroupCount() {
+
+      $sql = $this->user->getSQL();
+      $res = $sql->select($sql->count())->from("Group")->execute();
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if ($this->success) {
+        $this->groupCount = $res[0]["count"];
+      }
+
+      return $this->success;
+    }
+
+    public function execute($values = array()) {
+      if(!parent::execute($values)) {
+        return false;
+      }
+
+      $page = $this->getParam("page");
+      if($page < 1) {
+        return $this->createError("Invalid page count");
+      }
+
+      $count = $this->getParam("count");
+      if($count < 1 || $count > 50) {
+        return $this->createError("Invalid fetch count");
+      }
+
+      if (!$this->getGroupCount()) {
+        return false;
+      }
+
+      $sql = $this->user->getSQL();
+      $res = $sql->select("Group.uid as groupId", "Group.name as groupName", "Group.color as groupColor", $sql->count("UserGroup.user_id"))
+        ->from("Group")
+        ->leftJoin("UserGroup", "UserGroup.group_id", "Group.uid")
+        ->groupBy("Group.uid")
+        ->orderBy("Group.uid")
+        ->ascending()
+        ->limit($count)
+        ->offset(($page - 1) * $count)
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if($this->success) {
+        $this->result["groups"] = array();
+        foreach($res as $row) {
+          $groupId = intval($row["groupId"]);
+          $groupName = $row["groupName"];
+          $groupColor = $row["groupColor"];
+          $memberCount = $row["usergroup_user_id_count"];
+          $this->result["groups"][$groupId] = array(
+            "name" => $groupName,
+            "memberCount" => $memberCount,
+            "color" => $groupColor,
+          );
+        }
+        $this->result["pageCount"] = intval(ceil($this->groupCount / $count));
+        $this->result["totalCount"] = $this->groupCount;
+      }
+
+      return $this->success;
+    }
+  }
+
+  class Create extends GroupsAPI {
+    public function __construct($user, $externalCall = false) {
+      parent::__construct($user, $externalCall, array(
+        'name' => new StringType('name', 32),
+        'color' => new StringType('color', 10),
+      ));
+    }
+
+    public function execute($values = array()) {
+      if (!parent::execute($values)) {
+        return false;
+      }
+
+      $name = $this->getParam("name");
+      if (preg_match("/^[a-zA-Z][a-zA-Z0-9_-]*$/", $name) !== 1) {
+        return $this->createError("Invalid name");
+      }
+
+      $color = $this->getParam("color");
+      if (preg_match("/^#[a-fA-F0-9]{3,6}$/", $color) !== 1) {
+        return $this->createError("Invalid color");
+      }
+
+      $exists = $this->groupExists($name);
+      if (!$this->success) {
+        return false;
+      } else if ($exists) {
+        return $this->createError("A group with this name already exists");
+      }
+
+      $sql = $this->user->getSQL();
+      $res = $sql->insert("Group", array("name", "color"))
+        ->addRow($name, $color)
+        ->returning("uid")
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if ($this->success) {
+        $this->result["uid"] = $sql->getLastInsertId();
+      }
+
+      return $this->success;
+    }
+  }
+
+  class Delete extends GroupsAPI {
+    public function __construct($user, $externalCall = false) {
+      parent::__construct($user, $externalCall, array(
+        'uid' => new Parameter('uid', Parameter::TYPE_INT)
+      ));
+    }
+
+    public function execute($values = array()) {
+      if (!parent::execute($values)) {
+        return false;
+      }
+
+      $id = $this->getParam("uid");
+      if (in_array($id, DEFAULT_GROUPS)) {
+        return $this->createError("You cannot delete a default group.");
+      }
+
+      $sql = $this->user->getSQL();
+      $res = $sql->select($sql->count())
+        ->from("Group")
+        ->where(new Compare("uid", $id))
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if ($this->success && $res[0]["count"] === 0) {
+        return $this->createError("This group does not exist.");
+      }
+
+      $res = $sql->delete("Group")->where(new Compare("uid", $id))->execute();
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+      return $this->success;
+    }
+  }
+}

core/Api/LanguageAPI.class.php

@@ -0,0 +1,128 @@
+<?php
+
+namespace Api {
+
+  abstract class LanguageAPI extends Request {
+
+  }
+
+}
+
+namespace Api\Language {
+
+  use Api\LanguageAPI;
+  use Api\Parameter\Parameter;
+  use Api\Parameter\StringType;
+  use Driver\SQL\Condition\Compare;
+  use Driver\SQL\Condition\CondOr;
+  use Objects\Language;
+
+  class Get extends LanguageAPI {
+
+    public function __construct($user, $externalCall = false) {
+      parent::__construct($user, $externalCall, array());
+    }
+
+    public function execute($values = array()) {
+      if(!parent::execute($values)) {
+        return false;
+      }
+
+      $sql = $this->user->getSQL();
+      $res = $sql->select("uid", "code", "name")
+        ->from("Language")
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if($this->success) {
+        $this->result['languages'] = array();
+        if(empty($res) === 0) {
+          $this->lastError = L("No languages found");
+        } else {
+          foreach($res as $row) {
+            $this->result['languages'][$row['uid']] = $row;
+          }
+        }
+      }
+
+      return $this->success;
+    }
+  }
+
+  class Set extends LanguageAPI {
+
+    private Language $language;
+
+    public function __construct($user, $externalCall = false) {
+      parent::__construct($user, $externalCall, array(
+        'langId' => new Parameter('langId', Parameter::TYPE_INT, true, NULL),
+        'langCode' => new StringType('langCode', 5, true, NULL),
+      ));
+
+    }
+
+    private function checkLanguage() {
+      $langId = $this->getParam("langId");
+      $langCode = $this->getParam("langCode");
+
+      if(is_null($langId) && is_null($langCode)) {
+        return $this->createError(L("Either langId or langCode must be given"));
+      }
+
+      $res = $this->user->getSQL()
+        ->select("uid", "code", "name")
+        ->from("Language")
+        ->where(new CondOr(new Compare("uid", $langId), new Compare("code", $langCode)))
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $this->user->getSQL()->getLastError();
+
+      if ($this->success) {
+        if(count($res) == 0) {
+          return $this->createError(L("This Language does not exist"));
+        } else {
+          $row = $res[0];
+          $this->language = Language::newInstance($row['uid'], $row['code'], $row['name']);
+          if(!$this->language) {
+            return $this->createError(L("Error while loading language"));
+          }
+        }
+      }
+
+      return $this->success;
+    }
+
+    private function updateLanguage() {
+      $languageId = $this->language->getId();
+      $userId = $this->user->getId();
+      $sql = $this->user->getSQL();
+
+      $this->success = $sql->update("User")
+        ->set("language_id", $languageId)
+        ->where(new Compare("uid", $userId))
+        ->execute();
+      $this->lastError = $sql->getLastError();
+      return $this->success;
+    }
+
+    public function execute($values = array()) {
+      if(!parent::execute($values)) {
+        return false;
+      }
+
+      if(!$this->checkLanguage())
+        return false;
+
+      if($this->user->isLoggedIn()) {
+        $this->updateLanguage();
+      }
+
+      $this->user->setLanguage($this->language);
+      return $this->success;
+    }
+  }
+
+}

core/Api/MailAPI.class.php

@@ -0,0 +1,120 @@
+<?php
+
+namespace Api {
+  abstract class MailAPI extends Request {
+
+  }
+}
+
+namespace Api\Mail {
+
+  use Api\MailAPI;
+  use Api\Parameter\Parameter;
+  use Api\Parameter\StringType;
+  use External\PHPMailer\Exception;
+  use External\PHPMailer\PHPMailer;
+  use Objects\ConnectionData;
+  use Objects\User;
+
+  class Test extends MailAPI {
+
+    public function __construct(User $user, bool $externalCall = false) {
+      parent::__construct($user, $externalCall, array(
+        "receiver" => new Parameter("receiver", Parameter::TYPE_EMAIL)
+      ));
+    }
+
+    public function execute($values = array()) {
+      if (!parent::execute($values)) {
+        return false;
+      }
+
+      $receiver = $this->getParam("receiver");
+      $req = new \Api\Mail\Send($this->user);
+      $this->success = $req->execute(array(
+        "to" => $receiver,
+        "subject" => "Test E-Mail",
+        "body" => "Hey! If you receive this e-mail, your mail configuration seems to be working."
+      ));
+
+      $this->lastError = $req->getLastError();
+      return $this->success;
+    }
+  }
+
+  class Send extends MailAPI {
+    public function __construct($user, $externalCall = false) {
+      parent::__construct($user, $externalCall, array(
+        'to' => new Parameter('to', Parameter::TYPE_EMAIL),
+        'subject'  => new StringType('subject', -1),
+        'body' => new StringType('body', -1),
+      ));
+      $this->isPublic = false;
+    }
+
+    private function getMailConfig() : ?ConnectionData {
+      $req = new \Api\Settings\Get($this->user);
+      $this->success = $req->execute(array("key" => "^mail_"));
+      $this->lastError = $req->getLastError();
+
+      if ($this->success) {
+        $settings = $req->getResult()["settings"];
+
+        if (!isset($settings["mail_enabled"]) || $settings["mail_enabled"] !== "1") {
+          $this->createError("Mail is not configured yet.");
+          return null;
+        }
+
+        $host = $settings["mail_host"] ?? "localhost";
+        $port = intval($settings["mail_port"] ?? "25");
+        $login = $settings["mail_username"] ?? "";
+        $password = $settings["mail_password"] ?? "";
+        $connectionData = new ConnectionData($host, $port, $login, $password);
+        $connectionData->setProperty("from", $settings["mail_from"] ?? "");
+        return $connectionData;
+      }
+
+      return null;
+    }
+
+    public function execute($values = array()) {
+      if(!parent::execute($values)) {
+        return false;
+      }
+
+      $mailConfig = $this->getMailConfig();
+      if (!$this->success) {
+        return false;
+      }
+
+      try {
+        $mail = new PHPMailer;
+        $mail->IsSMTP();
+        $mail->setFrom($mailConfig->getProperty("from"));
+        $mail->addAddress($this->getParam('to'));
+        $mail->Subject = $this->getParam('subject');
+        $mail->SMTPDebug = 0;
+        $mail->Host = $mailConfig->getHost();
+        $mail->Port = $mailConfig->getPort();
+        $mail->SMTPAuth = true;
+        $mail->Username = $mailConfig->getLogin();
+        $mail->Password = $mailConfig->getPassword();
+        $mail->SMTPSecure = 'tls';
+        $mail->IsHTML(true);
+        $mail->CharSet = 'UTF-8';
+        $mail->Body = $this->getParam('body');
+
+        $this->success = @$mail->Send();
+        if (!$this->success) {
+          $this->lastError = "Error sending Mail: $mail->ErrorInfo";
+          error_log("sendMail() failed: $mail->ErrorInfo");
+        }
+      } catch (Exception $e) {
+        $this->success = false;
+        $this->lastError = "Error sending Mail: $e";
+      }
+
+      return $this->success;
+    }
+  }
+}

core/Api/Notifications/Create.class.php

@@ -1,135 +0,0 @@
-<?php
-
-namespace Api\Notifications;
-
-use \Api\Request;
-use \Api\Parameter\Parameter;
-use \Api\Parameter\StringType;
-use \Driver\SQL\Condition\Compare;
-
-class Create extends Request {
-
-  public function __construct($user, $externCall = false) {
-    parent::__construct($user, $externCall, array(
-      'groupId' => new Parameter('groupId', Parameter::TYPE_INT, true),
-      'userId' => new Parameter('userId', Parameter::TYPE_INT, true),
-      'title' =>  new StringType('title', 32),
-      'message' =>  new StringType('message', 256),
-    ));
-    $this->isPublic = false;
-  }
-
-  private function checkUser($userId) {
-    $sql = $this->user->getSQL();
-    $res = $sql->select($sql->count())
-      ->from("User")
-      ->where(new Compare("uid", $userId))
-      ->execute();
-
-      $this->success = ($res !== FALSE);
-      $this->lastError = $sql->getLastError();
-
-    if ($this->success) {
-      if ($res[0]["count"] == 0) {
-        $this->success = false;
-        $this->lastError = "User not found";
-      }
-    }
-
-    return $this->success;
-  }
-
-  private function insertUserNotification($userId, $notificationId) {
-    $sql = $this->user->getSQL();
-    $res = $sql->insert("UserNotification", array("user_id", "notification_id"))
-      ->addRow($userId, $notificationId)
-      ->execute();
-
-    $this->success = ($res !== FALSE);
-    $this->lastError = $sql->getLastError();
-    return $this->success;
-  }
-
-  private function checkGroup($groupId) {
-    $sql = $this->user->getSQL();
-    $res = $sql->select($sql->count())
-      ->from("Group")
-      ->where(new Compare("uid", $groupId))
-      ->execute();
-
-    $this->success = ($res !== FALSE);
-    $this->lastError = $sql->getLastError();
-
-    if ($this->success) {
-      if ($res[0]["count"] == 0) {
-        $this->success = false;
-        $this->lastError = "Group not found";
-      }
-    }
-
-    return $this->success;
-  }
-
-  private function insertGroupNotification($groupId, $notificationId) {
-    $sql = $this->user->getSQL();
-    $res = $sql->insert("GroupNotification", array("group_id", "notification_id"))
-      ->addRow($groupId, $notificationId)
-      ->execute();
-
-    $this->success = ($res !== FALSE);
-    $this->lastError = $sql->getLastError();
-    return $this->success;
-  }
-
-  private function createNotification($title, $message) {
-    $sql = $this->user->getSQL();
-    $res = $sql->insert("Notification", array("title", "message"))
-      ->addRow($title, $message)
-      ->returning("uid")
-      ->execute();
-
-    $this->success = ($res !== FALSE);
-    $this->lastError = $sql->getLastError();
-
-    if ($this->success) {
-      return $sql->getLastInsertId();
-    }
-
-    return $this->success;
-  }
-
-  public function execute($values = array()) {
-    if(!parent::execute($values)) {
-      return false;
-    }
-
-    $userId = $this->getParam("userId");
-    $groupId = $this->getParam("groupId");
-    $title = $this->getParam("title");
-    $message = $this->getParam("message");
-
-    if (is_null($userId) && is_null($groupId)) {
-      return $this->createError("Either userId or groupId must be specified.");
-    } else if(!is_null($userId) && !is_null($groupId)) {
-      return $this->createError("Only one of userId and groupId must be specified.");
-    } else if(!is_null($userId)) {
-      if ($this->checkUser($userId)) {
-        $id = $this->createNotification($title, $message);
-        if ($this->success) {
-          return $this->insertUserNotification($userId, $id);
-        }
-      }
-    } else if(!is_null($groupId)) {
-      if ($this->checkGroup($groupId)) {
-        $id = $this->createNotification($title, $message);
-        if ($this->success) {
-          return $this->insertGroupNotification($groupId, $id);
-        }
-      }
-    }
-
-    return $this->success;
-  }
-};
-
-?>

core/Api/Notifications/Fetch.class.php

@@ -1,94 +0,0 @@
-<?php
-
-namespace Api\Notifications;
-
-use \Api\Request;
-use \Driver\SQL\Condition\Compare;
-
-class Fetch extends Request {
-
-  private $notifications;
-
-  public function __construct($user, $externCall = false) {
-    parent::__construct($user, $externCall, array());
-    $this->loginRequired = true;
-  }
-
-  private function fetchUserNotifications() {
-    $userId = $this->user->getId();
-    $sql = $this->user->getSQL();
-    $res = $sql->select($sql->distinct("Notification.uid"), "created_at", "title", "message")
-      ->from("Notification")
-      ->innerJoin("UserNotification", "UserNotification.notification_id", "Notification.uid")
-      ->where(new Compare("UserNotification.user_id", $userId))
-      ->where(new Compare("UserNotification.seen", false))
-      ->orderBy("created_at")->descending()
-      ->execute();
-
-    $this->success = ($res !== FALSE);
-    $this->lastError = $sql->getLastError();
-
-    if ($this->success) {
-      foreach($res as $row) {
-        $id = $row["uid"];
-        if (!isset($this->notifications[$id])) {
-          $this->notifications[$id] = array(
-            "uid" => $id,
-            "title" => $row["title"],
-            "message" => $row["message"],
-            "created_at" => $row["created_at"],
-          );
-        }
-      }
-    }
-
-    return $this->success;
-  }
-
-  private function fetchGroupNotifications() {
-    $userId = $this->user->getId();
-    $sql = $this->user->getSQL();
-    $res = $sql->select($sql->distinct("Notification.uid"), "created_at", "title", "message")
-      ->from("Notification")
-      ->innerJoin("GroupNotification", "GroupNotification.notification_id", "Notification.uid")
-      ->innerJoin("UserGroup", "GroupNotification.group_id", "UserGroup.group_id")
-      ->where(new Compare("UserGroup.user_id", $userId))
-      ->where(new Compare("GroupNotification.seen", false))
-      ->orderBy("created_at")->descending()
-      ->execute();
-
-    $this->success = ($res !== FALSE);
-    $this->lastError = $sql->getLastError();
-
-    if ($this->success) {
-      foreach($res as $row) {
-        $id = $row["uid"];
-        if (!isset($this->notifications[$id])) {
-          $this->notifications[$id] = array(
-            "uid" => $id,
-            "title" => $row["title"],
-            "message" => $row["message"],
-            "created_at" => $row["created_at"],
-          );
-        }
-      }
-    }
-
-    return $this->success;
-  }
-
-  public function execute($values = array()) {
-    if(!parent::execute($values)) {
-      return false;
-    }
-
-    $this->notifications = array();
-    if ($this->fetchUserNotifications() && $this->fetchGroupNotifications()) {
-      $this->result["notifications"] = $this->notifications;
-    }
-
-    return $this->success;
-  }
-};
-
-?>

core/Api/NotificationsAPI.class.php

@@ -0,0 +1,268 @@
+<?php
+
+namespace Api {
+  abstract class NotificationsAPI extends Request {
+
+  }
+}
+
+namespace Api\Notifications {
+
+  use Api\NotificationsAPI;
+  use Api\Parameter\Parameter;
+  use Api\Parameter\StringType;
+  use Driver\SQL\Condition\Compare;
+  use Driver\SQL\Condition\CondIn;
+  use Driver\SQL\Query\Select;
+  use Objects\User;
+
+  class Create extends NotificationsAPI {
+
+    public function __construct($user, $externalCall = false) {
+      parent::__construct($user, $externalCall, array(
+        'groupId' => new Parameter('groupId', Parameter::TYPE_INT, true),
+        'userId' => new Parameter('userId', Parameter::TYPE_INT, true),
+        'title' =>  new StringType('title', 32),
+        'message' =>  new StringType('message', 256),
+      ));
+      $this->isPublic = false;
+    }
+
+    private function checkUser($userId) {
+      $sql = $this->user->getSQL();
+      $res = $sql->select($sql->count())
+        ->from("User")
+        ->where(new Compare("uid", $userId))
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if ($this->success) {
+        if ($res[0]["count"] == 0) {
+          $this->success = false;
+          $this->lastError = "User not found";
+        }
+      }
+
+      return $this->success;
+    }
+
+    private function insertUserNotification($userId, $notificationId) {
+      $sql = $this->user->getSQL();
+      $res = $sql->insert("UserNotification", array("user_id", "notification_id"))
+        ->addRow($userId, $notificationId)
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+      return $this->success;
+    }
+
+    private function checkGroup($groupId) {
+      $sql = $this->user->getSQL();
+      $res = $sql->select($sql->count())
+        ->from("Group")
+        ->where(new Compare("uid", $groupId))
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if ($this->success) {
+        if ($res[0]["count"] == 0) {
+          $this->success = false;
+          $this->lastError = "Group not found";
+        }
+      }
+
+      return $this->success;
+    }
+
+    private function insertGroupNotification($groupId, $notificationId) {
+      $sql = $this->user->getSQL();
+      $res = $sql->insert("GroupNotification", array("group_id", "notification_id"))
+        ->addRow($groupId, $notificationId)
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+      return $this->success;
+    }
+
+    private function createNotification($title, $message) {
+      $sql = $this->user->getSQL();
+      $res = $sql->insert("Notification", array("title", "message"))
+        ->addRow($title, $message)
+        ->returning("uid")
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if ($this->success) {
+        return $sql->getLastInsertId();
+      }
+
+      return $this->success;
+    }
+
+    public function execute($values = array()) {
+      if(!parent::execute($values)) {
+        return false;
+      }
+
+      $userId = $this->getParam("userId");
+      $groupId = $this->getParam("groupId");
+      $title = $this->getParam("title");
+      $message = $this->getParam("message");
+
+      if (is_null($userId) && is_null($groupId)) {
+        return $this->createError("Either userId or groupId must be specified.");
+      } else if(!is_null($userId) && !is_null($groupId)) {
+        return $this->createError("Only one of userId and groupId must be specified.");
+      } else if(!is_null($userId)) {
+        if ($this->checkUser($userId)) {
+          $id = $this->createNotification($title, $message);
+          if ($this->success) {
+            return $this->insertUserNotification($userId, $id);
+          }
+        }
+      } else if(!is_null($groupId)) {
+        if ($this->checkGroup($groupId)) {
+          $id = $this->createNotification($title, $message);
+          if ($this->success) {
+            return $this->insertGroupNotification($groupId, $id);
+          }
+        }
+      }
+
+      return $this->success;
+    }
+  }
+
+  class Fetch extends NotificationsAPI {
+
+    private array $notifications;
+    private array $notificationids;
+
+    public function __construct($user, $externalCall = false) {
+      parent::__construct($user, $externalCall, array(
+        'new' => new Parameter('new', Parameter::TYPE_BOOLEAN, true, true)
+      ));
+      $this->loginRequired = true;
+    }
+
+    private function fetchUserNotifications() {
+      $onlyNew = $this->getParam('new');
+      $userId = $this->user->getId();
+      $sql = $this->user->getSQL();
+      $query = $sql->select($sql->distinct("Notification.uid"), "created_at", "title", "message", "type")
+        ->from("Notification")
+        ->innerJoin("UserNotification", "UserNotification.notification_id", "Notification.uid")
+        ->where(new Compare("UserNotification.user_id", $userId))
+        ->orderBy("created_at")->descending();
+
+      if ($onlyNew) {
+        $query->where(new Compare("UserNotification.seen", false));
+      }
+
+      return $this->fetchNotifications($query);
+    }
+
+    private function fetchGroupNotifications() {
+      $onlyNew = $this->getParam('new');
+      $userId = $this->user->getId();
+      $sql = $this->user->getSQL();
+      $query = $sql->select($sql->distinct("Notification.uid"), "created_at", "title", "message", "type")
+        ->from("Notification")
+        ->innerJoin("GroupNotification", "GroupNotification.notification_id", "Notification.uid")
+        ->innerJoin("UserGroup", "GroupNotification.group_id", "UserGroup.group_id")
+        ->where(new Compare("UserGroup.user_id", $userId))
+        ->orderBy("created_at")->descending();
+
+      if ($onlyNew) {
+        $query->where(new Compare("GroupNotification.seen", false));
+      }
+
+      return $this->fetchNotifications($query);
+    }
+
+    private function fetchNotifications(Select $query) {
+      $sql = $this->user->getSQL();
+      $res = $query->execute();
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if ($this->success) {
+        foreach($res as $row) {
+          $id = $row["uid"];
+          if (!in_array($id, $this->notificationids)) {
+            $this->notificationids[] = $id;
+            $this->notifications[] = array(
+              "uid" => $id,
+              "title" => $row["title"],
+              "message" => $row["message"],
+              "created_at" => $row["created_at"],
+              "type" => $row["type"]
+            );
+          }
+        }
+      }
+
+      return $this->success;
+    }
+
+    public function execute($values = array()) {
+      if(!parent::execute($values)) {
+        return false;
+      }
+
+      $this->notifications = array();
+      $this->notificationids = array();
+      if ($this->fetchUserNotifications() && $this->fetchGroupNotifications()) {
+        $this->result["notifications"] = $this->notifications;
+      }
+
+      return $this->success;
+    }
+  }
+
+  class Seen extends NotificationsAPI {
+
+    public function __construct(User $user, bool $externalCall = false) {
+      parent::__construct($user, $externalCall, array());
+      $this->loginRequired = true;
+    }
+
+    public function execute($values = array()) {
+      if (!parent::execute($values)) {
+        return false;
+      }
+
+      $sql = $this->user->getSQL();
+      $res = $sql->update("UserNotification")
+        ->set("seen", true)
+        ->where(new Compare("user_id", $this->user->getId()))
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if ($this->success) {
+        $res = $sql->update("GroupNotification")
+          ->set("seen", true)
+          ->where(new CondIn("group_id",
+            $sql->select("group_id")
+              ->from("UserGroup")
+              ->where(new Compare("user_id", $this->user->getId()))))
+          ->execute();
+
+        $this->success = ($res !== FALSE);
+        $this->lastError = $sql->getLastError();
+      }
+
+      return $this->success;
+    }
+  }
+}

core/Api/Parameter/Parameter.class.php

@@ -2,6 +2,8 @@
 
 namespace Api\Parameter;
 
+use DateTime;
+
 class Parameter {
   const TYPE_INT       = 0;
   const TYPE_FLOAT     = 1;
@@ -14,15 +16,17 @@ class Parameter {
 
   // only internal access
   const TYPE_RAW       = 8;
+
+  // only json will work here i guess
   const TYPE_ARRAY     = 9;
 
   const names = array('Integer', 'Float', 'Boolean', 'String', 'Date', 'Time', 'DateTime', 'E-Mail', 'Raw', 'Array');
 
-  public $name;
+  public string $name;
   public $value;
   public $optional;
-  public $type;
-  public $typeName;
+  public int $type;
+  public string $typeName;
 
   public function __construct($name, $type, $optional = FALSE, $defaultValue = NULL) {
     $this->name = $name;
@@ -59,11 +63,11 @@ class Parameter {
       return Parameter::TYPE_BOOLEAN;
     else if(is_a($value, 'DateTime'))
       return Parameter::TYPE_DATE_TIME;
-    else if(($d = \DateTime::createFromFormat('Y-m-d', $value)) && $d->format('Y-m-d') === $value)
+    else if(($d = DateTime::createFromFormat('Y-m-d', $value)) && $d->format('Y-m-d') === $value)
       return Parameter::TYPE_DATE;
-    else if(($d = \DateTime::createFromFormat('H:i:s', $value)) && $d->format('H:i:s') === $value)
+    else if(($d = DateTime::createFromFormat('H:i:s', $value)) && $d->format('H:i:s') === $value)
       return Parameter::TYPE_TIME;
-    else if(($d = \DateTime::createFromFormat('Y-m-d H:i:s', $value)) && $d->format('Y-m-d H:i:s') === $value)
+    else if(($d = DateTime::createFromFormat('Y-m-d H:i:s', $value)) && $d->format('Y-m-d H:i:s') === $value)
       return Parameter::TYPE_DATE_TIME;
     else if (filter_var($value, FILTER_VALIDATE_EMAIL))
       return Parameter::TYPE_EMAIL;
@@ -156,6 +160,4 @@ class Parameter {
         return true;
     }
   }
-}
-
-?>
+}

core/Api/Parameter/StringType.class.php

@@ -4,10 +4,10 @@ namespace Api\Parameter;
 
 class StringType extends Parameter {
 
-  public $maxLength;
+  public int $maxLength;
   public function __construct($name, $maxLength = -1, $optional = FALSE, $defaultValue = NULL) {
-    parent::__construct($name, Parameter::TYPE_STRING, $optional, $defaultValue);
     $this->maxLength = $maxLength;
+    parent::__construct($name, Parameter::TYPE_STRING, $optional, $defaultValue);
   }
 
   public function parseParam($value) {
@@ -38,6 +38,4 @@ class StringType extends Parameter {
 
     return $str;
   }
-}
-
-?>
+}

core/Api/PermissionAPI.class.php

@@ -0,0 +1,213 @@
+<?php
+
+namespace Api {
+
+  abstract class PermissionAPI extends Request {
+    protected function checkStaticPermission() {
+      if (!$this->user->isLoggedIn() || !$this->user->hasGroup(USER_GROUP_ADMIN)) {
+        return $this->createError("Permission denied.");
+      }
+
+      return true;
+    }
+  }
+}
+
+namespace Api\Permission {
+
+  use Api\Parameter\Parameter;
+  use Api\Parameter\StringType;
+  use Api\PermissionAPI;
+  use Driver\SQL\Column\Column;
+  use Driver\SQL\Condition\Compare;
+  use Driver\SQL\Condition\CondIn;
+  use Driver\SQL\Condition\CondNot;
+  use Driver\SQL\Strategy\UpdateStrategy;
+  use Objects\User;
+
+  class Check extends PermissionAPI {
+
+    public function __construct(User $user, bool $externalCall = false) {
+      parent::__construct($user, $externalCall, array(
+        'method' => new StringType('method', 323)
+      ));
+
+      $this->isPublic = false;
+    }
+
+    public function execute($values = array()) {
+      if (!parent::execute($values)) {
+        return false;
+      }
+
+      $method = $this->getParam("method");
+      $sql = $this->user->getSQL();
+      $res = $sql->select("groups")
+        ->from("ApiPermission")
+        ->where(new Compare("method", $method))
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if ($this->success) {
+        if (empty($res)) {
+          return true;
+        }
+
+        $groups = json_decode($res[0]["groups"]);
+        if (empty($groups)) {
+          return true;
+        }
+
+        if (!$this->user->isLoggedIn() || empty(array_intersect($groups, array_keys($this->user->getGroups())))) {
+          header('HTTP 1.1 401 Unauthorized');
+          return $this->createError("Permission denied.");
+        }
+      }
+
+      return $this->success;
+    }
+  }
+
+  class Fetch extends PermissionAPI {
+
+    private array $groups;
+
+    public function __construct(User $user, bool $externalCall = false) {
+      parent::__construct($user, $externalCall, array());
+    }
+
+    private function fetchGroups() {
+      $sql = $this->user->getSQL();
+      $res = $sql->select("uid", "name", "color")
+        ->from("Group")
+        ->orderBy("uid")
+        ->ascending()
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if ($this->success) {
+        $this->groups = array();
+        foreach($res as $row) {
+          $groupId = $row["uid"];
+          $groupName = $row["name"];
+          $groupColor = $row["color"];
+          $this->groups[$groupId] = array("name" => $groupName, "color" => $groupColor);
+        }
+      }
+
+      return $this->success;
+    }
+
+    public function execute($values = array()) {
+      if (!parent::execute($values)) {
+        return false;
+      }
+
+      if (!$this->checkStaticPermission()) {
+        return false;
+      }
+
+      if (!$this->fetchGroups()) {
+        return false;
+      }
+
+      $sql = $this->user->getSQL();
+      $res = $sql->select("method", "groups", "description")
+        ->from("ApiPermission")
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if ($this->success) {
+        $permissions = array();
+        foreach ($res as $row) {
+          $method = $row["method"];
+          $description = $row["description"];
+          $groups = json_decode($row["groups"]);
+          $permissions[] = array(
+            "method" => $method,
+            "groups" => $groups,
+            "description" => $description
+          );
+        }
+        $this->result["permissions"] = $permissions;
+        $this->result["groups"] = $this->groups;
+      }
+
+      return $this->success;
+    }
+  }
+
+  class Save extends PermissionAPI {
+
+    public function __construct(User $user, bool $externalCall = false) {
+      parent::__construct($user, $externalCall, array(
+        'permissions' => new Parameter('permissions', Parameter::TYPE_ARRAY)
+      ));
+    }
+
+    public function execute($values = array()) {
+      if (!parent::execute($values)) {
+        return false;
+      }
+
+      if (!$this->checkStaticPermission()) {
+        return false;
+      }
+
+      $permissions = $this->getParam("permissions");
+      $sql = $this->user->getSQL();
+      $methodParam = new StringType('method', 32);
+      $groupsParam = new Parameter('groups', Parameter::TYPE_ARRAY);
+
+      $updateQuery = $sql->insert("ApiPermission", array("method", "groups"))
+        ->onDuplicateKeyStrategy(new UpdateStrategy(array("method"), array( "groups" => new Column("groups") )));
+
+      $insertedMethods = array();
+
+      foreach($permissions as $permission) {
+        if (!is_array($permission)) {
+          return $this->createError("Invalid data type found in parameter: permissions, expected: object");
+        } else if(!isset($permission["method"]) || !array_key_exists("groups", $permission)) {
+          return $this->createError("Invalid object found in parameter: permissions, expected keys 'method' and 'groups'");
+        } else if (!$methodParam->parseParam($permission["method"])) {
+          $expectedType = $methodParam->getTypeName();
+          return $this->createError("Invalid data type found for attribute 'method', expected: $expectedType");
+        } else if(!$groupsParam->parseParam($permission["groups"])) {
+          $expectedType = $groupsParam->getTypeName();
+          return $this->createError("Invalid data type found for attribute 'groups', expected: $expectedType");
+        } else if(empty(trim($methodParam->value))) {
+          return $this->createError("Method cannot be empty.");
+        } else {
+          $method = $methodParam->value;
+          $groups = $groupsParam->value;
+          $updateQuery->addRow($method, $groups);
+          $insertedMethods[] = $method;
+        }
+      }
+
+      if (!empty($permissions)) {
+        $res = $updateQuery->execute();
+        $this->success = ($res !== FALSE);
+        $this->lastError = $sql->getLastError();
+      }
+
+      if ($this->success) {
+        $res = $sql->delete("ApiPermission")
+          ->where(new Compare("description", "")) // only delete non default permissions
+          ->where(new CondNot(new CondIn("method", $insertedMethods)))
+          ->execute();
+
+        $this->success = ($res !== FALSE);
+        $this->lastError = $sql->getLastError();
+      }
+
+      return $this->success;
+    }
+  }
+}

core/Api/Request.class.php

@@ -2,36 +2,41 @@
 
 namespace Api;
 
+use Objects\User;
+
 class Request {
 
-  protected $user;
-  protected $params;
-  protected $lastError;
-  protected $result;
-  protected $success;
-  protected $isPublic;
-  protected $loginRequired;
-  protected $variableParamCount;
-  protected $isDisabled;
-  protected $apiKeyAllowed;
+  protected User $user;
+  protected array $params;
+  protected string $lastError;
+  protected array $result;
+  protected bool $success;
+  protected bool $isPublic;
+  protected bool $loginRequired;
+  protected bool $variableParamCount;
+  protected bool $isDisabled;
+  protected bool $apiKeyAllowed;
+  protected bool $csrfTokenRequired;
 
-  private $aDefaultParams;
-  private $allowedMethods;
-  private $externCall;
+  private array $aDefaultParams;
+  private array $allowedMethods;
+  private bool $externalCall;
 
-  public function __construct($user, $externCall = false, $params = array()) {
+  public function __construct(User $user, bool $externalCall = false, array $params = array()) {
     $this->user = $user;
     $this->aDefaultParams = $params;
-    $this->lastError = '';
+
     $this->success = false;
     $this->result = array();
-    $this->externCall = $externCall;
+    $this->externalCall = $externalCall;
     $this->isPublic = true;
     $this->isDisabled = false;
     $this->loginRequired = false;
     $this->variableParamCount = false;
     $this->apiKeyAllowed = true;
     $this->allowedMethods = array("GET", "POST");
+    $this->lastError = "";
+    $this->csrfTokenRequired = true;
   }
 
   protected function forbidMethod($method) {
@@ -40,33 +45,20 @@ class Request {
     }
   }
 
-  public function getParamsString() {
-    $str = "";
-    $count = count($this->params);
-    $i = 0;
-    foreach($this->params as $param) {
-      $str .= $param->toString();
-      if($i < $count - 1) $str .= ", ";
-      $i++;
-    }
-
-    return "($str)";
-  }
-
   public function parseParams($values) {
-    foreach($this->params as $name => $param) {
-      $value = (isset($values[$name]) ? $values[$name] : NULL);
 
-      if(!$param->optional && is_null($value)) {
-        $this->lastError = 'Missing parameter: ' . $name;
-        return false;
+    foreach($this->params as $name => $param) {
+      $value = $values[$name] ?? NULL;
+
+      $isEmpty = (is_string($value) || is_array($value)) && empty($value);
+      if(!$param->optional && (is_null($value) || $isEmpty)) {
+        return $this->createError("Missing parameter: $name");
       }
 
-      if(!is_null($value)) {
+      if(!is_null($value) && !$isEmpty) {
         if(!$param->parseParam($value)) {
           $value = print_r($value, true);
-          $this->lastError = "Invalid Type for parameter: $name '$value' (Required: " . $param->getTypeName() . ")";
-          return false;
+          return $this->createError("Invalid Type for parameter: $name '$value' (Required: " . $param->getTypeName() . ")");
         }
       }
     }
@@ -93,11 +85,17 @@ class Request {
       $this->result['logoutIn'] = $this->user->getSession()->getExpiresSeconds();
     }
 
-    if($this->externCall) {
+    if($this->externalCall) {
       $values = $_REQUEST;
       if($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_SERVER["CONTENT_TYPE"]) && in_array("application/json", explode(";", $_SERVER["CONTENT_TYPE"]))) {
         $jsonData = json_decode(file_get_contents('php://input'), true);
-        $values = array_merge($values, $jsonData);
+        if ($jsonData) {
+          $values = array_merge($values, $jsonData);
+        } else {
+          $this->lastError = 'Invalid request body.';
+          header('HTTP 1.1 400 Bad Request');
+          return false;
+        }
       }
     }
 
@@ -106,7 +104,7 @@ class Request {
       return false;
     }
 
-    if($this->externCall && !$this->isPublic) {
+    if($this->externalCall && !$this->isPublic) {
       $this->lastError = 'This function is private.';
       header('HTTP 1.1 403 Forbidden');
       return false;
@@ -118,18 +116,42 @@ class Request {
       return false;
     }
 
+    if($this->externalCall) {
+      $apiKeyAuthorized = false;
 
-    if($this->loginRequired) {
-      $authorized = false;
-      if(isset($values['api_key']) && $this->apiKeyAllowed) {
-        $apiKey = $values['api_key'];
-        $authorized = $this->user->authorize($apiKey);
+      // Logged in or api key authorized?
+      if ($this->loginRequired) {
+        if(isset($values['api_key']) && $this->apiKeyAllowed) {
+          $apiKey = $values['api_key'];
+          $apiKeyAuthorized = $this->user->authorize($apiKey);
+        }
+
+        if(!$this->user->isLoggedIn() && !$apiKeyAuthorized) {
+          $this->lastError = 'You are not logged in.';
+          header('HTTP 1.1 401 Unauthorized');
+          return false;
+        }
       }
 
-      if(!$this->user->isLoggedIn() && !$authorized) {
-        $this->lastError = 'You are not logged in.';
-        header('HTTP 1.1 401 Unauthorized');
-        return false;
+      // CSRF Token
+      if($this->csrfTokenRequired && $this->user->isLoggedIn()) {
+        // csrf token required + external call
+        // if it's not a call with API_KEY, check for csrf_token
+        if (!isset($values["csrf_token"]) || strcmp($values["csrf_token"], $this->user->getSession()->getCsrfToken()) !== 0) {
+          $this->lastError = "CSRF-Token mismatch";
+          header('HTTP 1.1 403 Forbidden');
+          return false;
+        }
+      }
+
+      // Check for permission
+      if (!($this instanceof \Api\Permission\Save)) {
+        $req = new \Api\Permission\Check($this->user);
+        $this->success = $req->execute(array("method" => $this->getMethod()));
+        $this->lastError = $req->getLastError();
+        if (!$this->success) {
+          return false;
+        }
       }
     }
 
@@ -149,47 +171,32 @@ class Request {
     return true;
   }
 
-  protected function isValidString($str, $regex) {
-    return preg_replace($regex, "", $str) === $str;
-  }
-
   protected function createError($err) {
     $this->success = false;
     $this->lastError = $err;
     return false;
   }
-  //
-  // public static function callDirectly($class, $db) {
-  //   header('Content-Type: application/json');
-  //   require_once realpath($_SERVER['DOCUMENT_ROOT']) . '/php/api/objects/User.php';
-  //   require_once realpath($_SERVER['DOCUMENT_ROOT']) . '/php/sql.php';
-  //   require_once realpath($_SERVER['DOCUMENT_ROOT']) . '/php/conf/sql.php';
-  //
-  //   $sql = connectSQL(getSqlData($db));
-  //   $user = new CUser($sql);
-  //   $request = new $class($user, true);
-  //   $request->execute();
-  //   $sql->close();
-  //   $user->sendCookies();
-  //   return $request->getJsonResult();
-  // }
 
-  protected function getParam($name) { return isset($this->params[$name]) ? $this->params[$name]->value : NULL; }
+  protected function getParam($name) {
+    return isset($this->params[$name]) ? $this->params[$name]->value : NULL;
+  }
+
   public function isPublic() { return $this->isPublic; }
-  public function getDescription() { return ''; }
-  public function getSection() { return 'Default'; }
   public function getLastError() { return $this->lastError; }
   public function getResult() { return $this->result; }
   public function success() { return $this->success; }
   public function loginRequired() { return $this->loginRequired; }
-  public function isExternCall() { return $this->externCall; }
+  public function isExternalCall() { return $this->externalCall; }
+
+  private function getMethod() {
+    $class = str_replace("\\", "/", get_class($this));
+    $class = substr($class, strlen("api/"));
+    return $class;
+  }
 
   public function getJsonResult() {
     $this->result['success'] = $this->success;
     $this->result['msg'] = $this->lastError;
     return json_encode($this->result);
   }
-};
-
-
-?>
+}

core/Api/RoutesAPI.class.php

@@ -0,0 +1,217 @@
+<?php
+
+namespace Api {
+  abstract class RoutesAPI extends Request {
+
+    protected function formatRegex(string $input, bool $append) : string {
+      $start = startsWith($input, "^");
+      $end = endsWith($input, "$");
+      if ($append) {
+        if (!$start) $input = "^$input";
+        if (!$end) $input = "$input$";
+      } else {
+        if ($start) $input = substr($input, 1);
+        if ($end) $input = substr($input, 0, strlen($input)-1);
+      }
+
+      return $input;
+    }
+  }
+}
+
+namespace Api\Routes {
+
+  use Api\Parameter\Parameter;
+  use Api\Parameter\StringType;
+  use Api\RoutesAPI;
+  use Driver\SQL\Column\Column;
+  use Driver\SQL\Condition\CondBool;
+  use Driver\SQL\Condition\CondRegex;
+
+  class Fetch extends RoutesAPI {
+
+  public function __construct($user, $externalCall = false) {
+    parent::__construct($user, $externalCall, array());
+  }
+
+  public function execute($values = array()) {
+    if(!parent::execute($values)) {
+      return false;
+    }
+
+    $sql = $this->user->getSQL();
+
+    $res = $sql
+      ->select("uid", "request", "action", "target", "extra", "active")
+      ->from("Route")
+      ->orderBy("uid")
+      ->ascending()
+      ->execute();
+
+    $this->lastError = $sql->getLastError();
+    $this->success = ($res !== FALSE);
+
+    if ($this->success) {
+      $routes = array();
+      foreach($res as $row) {
+        $routes[] = array(
+          "uid"     => intval($row["uid"]),
+          "request" => $this->formatRegex($row["request"], false),
+          "action"  => $row["action"],
+          "target"  => $row["target"],
+          "extra"   => $row["extra"] ?? "",
+          "active"  => intval($sql->parseBool($row["active"])),
+        );
+      }
+
+      $this->result["routes"] = $routes;
+    }
+
+    return $this->success;
+  }
+}
+
+  class Find extends RoutesAPI {
+
+    public function __construct($user, $externalCall = false) {
+      parent::__construct($user, $externalCall, array(
+        'request' => new StringType('request', 128, true, '/')
+      ));
+
+      $this->isPublic = false;
+    }
+
+    public function execute($values = array()) {
+      if(!parent::execute($values)) {
+        return false;
+      }
+
+      $request = $this->getParam('request');
+      if (!startsWith($request, '/')) {
+        $request = "/$request";
+      }
+
+      $sql = $this->user->getSQL();
+
+      $res = $sql
+        ->select("uid", "request", "action", "target", "extra")
+        ->from("Route")
+        ->where(new CondBool("active"))
+        ->where(new CondRegex($request, new Column("request")))
+        ->limit(1)
+        ->execute();
+
+      $this->lastError = $sql->getLastError();
+      $this->success = ($res !== FALSE);
+
+      if ($this->success) {
+        if (!empty($res)) {
+          $row = $res[0];
+          $this->result["route"] = array(
+            "uid"     => intval($row["uid"]),
+            "request" => $row["request"],
+            "action"  => $row["action"],
+            "target"  => $row["target"],
+            "extra"   => $row["extra"]
+          );
+        } else {
+          $this->result["route"] = NULL;
+        }
+      }
+
+      return $this->success;
+    }
+  }
+
+  class Save extends RoutesAPI {
+
+    private array $routes;
+
+    public function __construct($user, $externalCall = false) {
+      parent::__construct($user, $externalCall, array(
+        'routes' => new Parameter('routes',Parameter::TYPE_ARRAY, false)
+      ));
+    }
+
+    public function execute($values = array()) {
+      if(!parent::execute($values)) {
+        return false;
+      }
+
+      if (!$this->validateRoutes()) {
+        return false;
+      }
+
+      $sql = $this->user->getSQL();
+
+      // DELETE old rules
+      $this->success = ($sql->truncate("Route")->execute() !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      // INSERT new routes
+      if ($this->success) {
+        $stmt = $sql->insert("Route", array("request", "action", "target", "extra", "active"));
+
+        foreach($this->routes as $route) {
+          $stmt->addRow($route["request"], $route["action"], $route["target"], $route["extra"], $route["active"]);
+        }
+        $this->success = ($stmt->execute() !== FALSE);
+        $this->lastError = $sql->getLastError();
+      }
+
+      return $this->success;
+    }
+
+    private function validateRoutes() {
+
+      $this->routes = array();
+      $keys = array(
+        "request" => Parameter::TYPE_STRING,
+        "action" => Parameter::TYPE_STRING,
+        "target" => Parameter::TYPE_STRING,
+        "extra"  => Parameter::TYPE_STRING,
+        "active" => Parameter::TYPE_BOOLEAN
+      );
+
+      $actions = array(
+        "redirect_temporary", "redirect_permanently", "static", "dynamic"
+      );
+
+      foreach($this->getParam("routes") as $index => $route) {
+        foreach($keys as $key => $expectedType) {
+          if (!array_key_exists($key, $route)) {
+            return $this->createError("Route $index missing key: $key");
+          }
+
+          $value = $route[$key];
+          $type = Parameter::parseType($value);
+          if ($type !== $expectedType) {
+            $expectedTypeName = Parameter::names[$expectedType];
+            $gotTypeName = Parameter::names[$type];
+            return $this->createError("Route $index has invalid value for key: $key, expected: $expectedTypeName, got: $gotTypeName");
+          }
+        }
+
+        $action = $route["action"];
+        if (!in_array($action, $actions)) {
+          return $this->createError("Invalid action: $action");
+        }
+
+        if(empty($route["request"])) {
+          return $this->createError("Request cannot be empty.");
+        }
+
+        if(empty($route["target"])) {
+          return $this->createError("Target cannot be empty.");
+        }
+
+        // add start- and end pattern for database queries
+        $route["request"] = $this->formatRegex($route["request"], true);
+        $this->routes[] = $route;
+      }
+
+      return true;
+    }
+  }
+}
+

core/Api/SendMail.class.php

@@ -1,58 +0,0 @@
-<?php
-
-namespace Api;
-use Api\Parameter\Parameter;
-use Api\Parameter\StringType;
-
-class SendMail extends Request {
-
-  public function __construct($user, $externCall = false) {
-    parent::__construct($user, $externCall, array(
-      'from' => new Parameter('from', Parameter::TYPE_EMAIL),
-      'to' => new Parameter('to', Parameter::TYPE_EMAIL),
-      'subject'  => new StringType('subject', -1),
-      'body' => new StringType('body', -1),
-      'fromName' => new StringType('fromName', -1, true, ''),
-      'replyTo' => new Parameter('to', Parameter::TYPE_EMAIL, true, ''),
-    ));
-    $this->isPublic = false;
-  }
-
-  public function execute($values = array()) {
-    if(!parent::execute($values)) {
-      return false;
-    }
-
-    $mailConfig = $this->user->getConfiguration()->getMail();
-    $mail = new \External\PHPMailer\PHPMailer;
-    $mail->IsSMTP();
-    $mail->setFrom($this->getParam('from'), $this->getParam('fromName'));
-    $mail->addAddress($this->getParam('to'));
-    $mail->Subject = $this->getParam('subject');
-    $mail->SMTPDebug = 0;
-    $mail->Host = $mailConfig->getHost();
-    $mail->Port = $mailConfig->getPort();
-    $mail->SMTPAuth = true;
-    $mail->Username = $mailConfig->getLogin();
-    $mail->Password = $mailConfig->getPassword();
-    $mail->SMTPSecure = 'tls';
-    $mail->IsHTML(true);
-    $mail->CharSet = 'UTF-8';
-    $mail->Body = $this->getParam('body');
-
-    $replyTo = $this->getParam('replyTo');
-    if(!is_null($replyTo) && !empty($replyTo)) {
-      $mail->AddReplyTo($replyTo, $this->getParam('fromName'));
-    }
-
-    $this->success = @$mail->Send();
-    if (!$this->success) {
-      $this->lastError = 'Error sending Mail: ' . $mail->ErrorInfo;
-      error_log("sendMail() failed: " . $mail->ErrorInfo);
-    }
-
-    return $this->success;
-  }
-};
-
-?>

core/Api/SetLanguage.class.php

@@ -1,83 +0,0 @@
-<?php
-
-namespace Api;
-
-use Api\Parameter\Parameter;
-use Api\Parameter\StringType;
-use Driver\SQL\Condition\CondOr;
-use Driver\SQL\Condition\Compare;
-
-class SetLanguage extends Request {
-
-  private $language;
-
-  public function __construct($user, $externCall = false) {
-    parent::__construct($user, $externCall, array(
-      'langId' => new Parameter('langId', Parameter::TYPE_INT, true, NULL),
-      'langCode' => new StringType('langCode', 5, true, NULL),
-    ));
-  }
-
-  private function checkLanguage() {
-    $langId = $this->getParam("langId");
-    $langCode = $this->getParam("langCode");
-
-    if(is_null($langId) && is_null($langCode)) {
-      return $this->createError(L("Either langId or langCode must be given"));
-    }
-
-    $res = $this->user->getSQL()
-      ->select("uid", "code", "name")
-      ->from("Language")
-      ->where(new CondOr(new Compare("uid", $langId), new Compare("code", $langCode)))
-      ->execute();
-
-    $this->success = ($res !== FALSE);
-    $this->lastError = $this->user->getSQL()->getLastError();
-
-    if ($this->success) {
-      if(count($res) == 0) {
-        return $this->createError(L("This Language does not exist"));
-      } else {
-        $row = $res[0];
-        $this->language = \Objects\Language::newInstance($row['uid'], $row['code'], $row['name']);
-        if(!$this->language) {
-          return $this->createError(L("Error while loading language"));
-        }
-      }
-    }
-
-    return $this->success;
-  }
-
-  private function updateLanguage() {
-    $languageId = $this->language->getId();
-    $userId = $this->user->getId();
-    $sql = $this->user->getSQL();
-
-    $this->success = $sql->update("User")
-      ->set("language_id", $languageId)
-      ->where(new Compare("uid", $userId))
-      ->execute();
-    $this->lastError = $sql->getLastError();
-    return $this->success;
-  }
-
-  public function execute($values = array()) {
-    if(!parent::execute($values)) {
-      return false;
-    }
-
-    if(!$this->checkLanguage())
-      return false;
-
-    if($this->user->isLoggedIn()) {
-      $this->updateLanguage();
-    }
-
-    $this->user->setLangauge($this->language);
-    return $this->success;
-  }
-};
-
-?>

core/Api/SettingsAPI.class.php

@@ -0,0 +1,169 @@
+<?php
+
+namespace Api {
+
+  abstract class SettingsAPI extends Request {
+
+  }
+
+}
+
+namespace Api\Settings {
+
+  use Api\Parameter\Parameter;
+  use Api\Parameter\StringType;
+  use Api\SettingsAPI;
+  use Driver\SQL\Column\Column;
+  use Driver\SQL\Condition\CondBool;
+  use Driver\SQL\Condition\CondIn;
+  use Driver\SQL\Condition\CondNot;
+  use Driver\SQL\Condition\CondRegex;
+  use Driver\SQL\Strategy\UpdateStrategy;
+  use Objects\User;
+
+  class Get extends SettingsAPI {
+
+    public function __construct(User $user, bool $externalCall = false) {
+      parent::__construct($user, $externalCall, array(
+        'key' => new StringType('key', -1, true, NULL)
+      ));
+    }
+
+    public function execute($values = array()) {
+       if(!parent::execute($values)) {
+         return false;
+       }
+
+       $key = $this->getParam("key");
+       $sql = $this->user->getSQL();
+
+       $query = $sql->select("name", "value") ->from("Settings");
+
+       if (!is_null($key) && !empty($key)) {
+         $query->where(new CondRegex(new Column("name"), $key));
+       }
+
+       // filter sensitive values, if called from outside
+       if ($this->isExternalCall()) {
+         $query->where(new CondNot("private"));
+       }
+
+       $res = $query->execute();
+
+       $this->success = ($res !== FALSE);
+       $this->lastError = $sql->getLastError();
+
+       if ($this->success) {
+         $settings = array();
+         foreach($res as $row) {
+           $settings[$row["name"]] = $row["value"];
+         }
+         $this->result["settings"] = $settings;
+       }
+
+       return $this->success;
+    }
+  }
+
+  class Set extends SettingsAPI {
+    public function __construct(User $user, bool $externalCall = false) {
+      parent::__construct($user, $externalCall, array(
+        'settings' => new Parameter('settings', Parameter::TYPE_ARRAY)
+      ));
+    }
+
+    public function execute($values = array()) {
+      if (!parent::execute($values)) {
+        return false;
+      }
+
+      $values = $this->getParam("settings");
+      if (empty($values)) {
+        return $this->createError("No values given.");
+      }
+
+      $paramKey = new StringType('key', 32);
+      $paramValue = new StringType('value', 1024, true, NULL);
+
+      $sql = $this->user->getSQL();
+      $query = $sql->insert("Settings", array("name", "value"));
+      $keys = array();
+      $deleteKeys = array();
+
+      foreach($values as $key => $value) {
+        if (!$paramKey->parseParam($key)) {
+          $key = print_r($key, true);
+          return $this->createError("Invalid Type for key in parameter settings: '$key' (Required: " . $paramKey->getTypeName() . ")");
+        } else if(!is_null($value) && !$paramValue->parseParam($value)) {
+          $value = print_r($value, true);
+          return $this->createError("Invalid Type for value in parameter settings: '$value' (Required: " . $paramValue->getTypeName() . ")");
+        } else if(preg_match("/^[a-zA-Z_][a-zA-Z_0-9-]*$/", $paramKey->value) !== 1) {
+          return $this->createError("The property key should only contain alphanumeric characters, underscores and dashes");
+        } else {
+          if (!is_null($paramValue->value)) {
+            $query->addRow($paramKey->value, $paramValue->value);
+          } else {
+            $deleteKeys[] = $paramKey->value;
+          }
+          $keys[] = $paramKey->value;
+        }
+      }
+
+      if ($this->isExternalCall()) {
+        $column = $this->checkReadonly($keys);
+        if(!$this->success) {
+          return false;
+        } else if($column !== null) {
+          return $this->createError("Column '$column' is readonly.");
+        }
+      }
+
+      if (!empty($deleteKeys) && !$this->deleteKeys($keys)) {
+        return false;
+      }
+
+      if (count($deleteKeys) !== count($keys)) {
+        $query->onDuplicateKeyStrategy(new UpdateStrategy(
+          array("name"),
+          array("value" => new Column("value")))
+        );
+
+
+        $this->success = ($query->execute() !== FALSE);
+        $this->lastError = $sql->getLastError();
+      }
+
+      return $this->success;
+    }
+
+    private function checkReadonly(array $keys) {
+      $sql = $this->user->getSQL();
+      $res = $sql->select("name")
+        ->from("Settings")
+        ->where(new CondBool("readonly"))
+        ->where(new CondIn("name", $keys))
+        ->limit(1)
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if ($this->success && !empty($res)) {
+        return $res[0]["name"];
+      }
+
+      return null;
+    }
+
+    private function deleteKeys(array $keys) {
+      $sql = $this->user->getSQL();
+      $res = $sql->delete("Settings")
+        ->where(new CondIn("name", $keys))
+        ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+      return $this->success;
+    }
+  }
+}

core/Api/Stats.class.php

@@ -0,0 +1,90 @@
+<?php
+
+namespace Api;
+
+use Driver\SQL\Condition\CondBool;
+
+class Stats extends Request {
+
+  private bool $mailConfigured;
+  private bool $recaptchaConfigured;
+
+  public function __construct($user, $externalCall = false) {
+    parent::__construct($user, $externalCall, array());
+  }
+
+  private function getUserCount() {
+    $sql = $this->user->getSQL();
+    $res = $sql->select($sql->count())->from("User")->execute();
+    $this->success = $this->success && ($res !== FALSE);
+    $this->lastError = $sql->getLastError();
+
+    return ($this->success ? $res[0]["count"] : 0);
+  }
+
+  private function getPageCount() {
+    $sql = $this->user->getSQL();
+    $res = $sql->select($sql->count())->from("Route")
+      ->where(new CondBool("active"))
+      ->execute();
+    $this->success = $this->success && ($res !== FALSE);
+    $this->lastError = $sql->getLastError();
+
+    return ($this->success ? $res[0]["count"] : 0);
+  }
+
+  private function checkSettings() {
+    $req = new \Api\Settings\Get($this->user);
+    $this->success = $req->execute(array("key" => "^(mail_enabled|recaptcha_enabled)$"));
+    $this->lastError = $req->getLastError();
+
+    if ($this->success) {
+      $settings = $req->getResult()["settings"];
+      $this->mailConfigured = ($settings["mail_enabled"] ?? "0") === "1";
+      $this->recaptchaConfigured = ($settings["recaptcha_enabled"] ?? "0") === "1";
+    }
+
+    return $this->success;
+  }
+
+  public function execute($values = array()) {
+    if(!parent::execute($values)) {
+      return false;
+    }
+
+    $userCount = $this->getUserCount();
+    $pageCount = $this->getPageCount();
+    $req = new \Api\Visitors\Stats($this->user);
+    $this->success = $req->execute(array("type"=>"monthly"));
+    $this->lastError = $req->getLastError();
+    if (!$this->success) {
+      return false;
+    }
+
+    $visitorStatistics = $req->getResult()["visitors"];
+    $loadAvg = "Unknown";
+    if (function_exists("sys_getloadavg")) {
+      $loadAvg = sys_getloadavg();
+    }
+
+    if (!$this->checkSettings()) {
+      return false;
+    }
+
+    $this->result["userCount"] = $userCount;
+    $this->result["pageCount"] = $pageCount;
+    $this->result["visitors"] = $visitorStatistics;
+    $this->result["server"] = array(
+      "version" => WEBBASE_VERSION,
+      "server" => $_SERVER["SERVER_SOFTWARE"] ?? "Unknown",
+      "memory_usage" => memory_get_usage(),
+      "load_avg" => $loadAvg,
+      "database" => $this->user->getSQL()->getStatus(),
+      "mail" => $this->mailConfigured,
+      "reCaptcha" => $this->recaptchaConfigured
+    );
+
+    return $this->success;
+  }
+
+}

core/Api/User/Login.class.php

@@ -1,82 +0,0 @@
-<?php
-
-namespace Api\User;
-
-use \Api\Request;
-use \Api\Parameter\Parameter;
-use \Api\Parameter\StringType;
-use \Driver\SQL\Condition\Compare;
-
-class Login extends Request {
-
-  private $startedAt;
-
-  public function __construct($user, $externCall = false) {
-    parent::__construct($user, $externCall, array(
-      'username' => new StringType('username', 32),
-      'password' => new StringType('password'),
-      'stayLoggedIn' => new Parameter('stayLoggedIn', Parameter::TYPE_BOOLEAN, true, true)
-    ));
-    $this->forbidMethod("GET");
-  }
-
-  private function wrongCredentials() {
-    $runtime = microtime(true) - $this->startedAt;
-    $sleepTime = round(3e6 - $runtime);
-    if($sleepTime > 0) usleep($sleepTime);
-    return $this->createError(L('Wrong username or password'));
-  }
-
-  public function execute($values = array()) {
-    if(!parent::execute($values)) {
-      return false;
-    }
-
-    if($this->user->isLoggedIn()) {
-      $this->lastError = L('You are already logged in');
-      $this->success = true;
-      return true;
-    }
-
-    $this->startedAt = microtime(true);
-    $this->success = false;
-    $username = $this->getParam('username');
-    $password = $this->getParam('password');
-    $stayLoggedIn = $this->getParam('stayLoggedIn');
-
-    $sql = $this->user->getSQL();
-    $res = $sql->select("User.uid", "User.password", "User.salt")
-      ->from("User")
-      ->where(new Compare("User.name", $username))
-      ->execute();
-
-    $this->success = ($res !== FALSE);
-    $this->lastError = $sql->getLastError();
-
-    if($this->success) {
-      if(count($res) === 0) {
-        return $this->wrongCredentials();
-      } else {
-        $row = $res[0];
-        $salt = $row['salt'];
-        $uid = $row['uid'];
-        $hash = hash('sha256', $password . $salt);
-        if($hash === $row['password']) {
-          if(!($this->success = $this->user->createSession($uid, $stayLoggedIn))) {
-            return $this->createError("Error creating Session: " . $sql->getLastError());
-          } else {
-            $this->result['logoutIn'] = $this->user->getSession()->getExpiresSeconds();
-            $this->success = true;
-          }
-        }
-        else {
-          return $this->wrongCredentials();
-        }
-      }
-    }
-
-    return $this->success;
-  }
-};
-
-?>

core/Api/User/Logout.class.php

@@ -1,26 +0,0 @@
-<?php
-
-namespace Api\User;
-
-use \Api\Request;
-
-class Logout extends Request {
-
-  public function __construct($user, $externCall = false) {
-    parent::__construct($user, $externCall);
-    $this->loginRequired = true;
-    $this->apiKeyAllowed = false;
-  }
-
-  public function execute($values = array()) {
-    if(!parent::execute($values)) {
-      return false;
-    }
-
-    $this->success = $this->user->logout();
-    $this->lastError = $this->user->getSQL()->getLastError();
-    return $this->success;
-  }
-};
-
-?>

core/Api/VerifyCaptcha.class.php

@@ -0,0 +1,67 @@
+<?php
+
+namespace Api;
+
+use Api\Parameter\StringType;
+use Objects\User;
+
+class VerifyCaptcha extends Request {
+
+  public function __construct(User $user, bool $externalCall = false) {
+    parent::__construct($user, $externalCall, array(
+      "captcha" => new StringType("captcha"),
+      "action" => new StringType("action"),
+    ));
+
+    $this->isPublic = false;
+  }
+
+  public function execute($values = array()) {
+     if(!parent::execute($values)) {
+       return false;
+     }
+
+     $settings = $this->user->getConfiguration()->getSettings();
+     if (!$settings->isRecaptchaEnabled()) {
+       return $this->createError("Google reCaptcha is not enabled.");
+     }
+
+    $url = "https://www.google.com/recaptcha/api/siteverify";
+    $secret = $settings->getRecaptchaSecretKey();
+    $captcha = $this->getParam("captcha");
+    $action = $this->getParam("action");
+
+    $params = array(
+      "secret" => $secret,
+      "response" => $captcha
+    );
+
+    $ch = curl_init();
+    curl_setopt($ch, CURLOPT_URL,$url);
+    curl_setopt($ch, CURLOPT_POST, 1);
+    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($params));
+    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+    $response = @json_decode(curl_exec($ch), true);
+    curl_close ($ch);
+
+    $this->success = false;
+    $this->lastError = "Could not verify captcha: No response from google received.";
+
+    if($response) {
+      $this->success = $response["success"];
+      if(!$this->success) {
+        $this->lastError = "Could not verify captcha: " . implode(";", $response["error-codes"]);
+      } else {
+        $score = $response["score"];
+        if($action !== $response["action"]) {
+          $this->createError("Could not verify captcha: Action does not match");
+        }
+        else if($score < 0.7) {
+          $this->createError("Could not verify captcha: Google ReCaptcha Score < 0.7 (Your score: $score), you are likely a bot");
+        }
+      }
+    }
+
+    return $this->success;
+  }
+}

core/Api/VisitorsAPI.class.php

@@ -0,0 +1,88 @@
+<?php
+
+namespace Api {
+
+  abstract class VisitorsAPI extends Request {
+
+  }
+}
+
+namespace Api\Visitors {
+
+  use Api\Parameter\Parameter;
+  use Api\Parameter\StringType;
+  use Api\VisitorsAPI;
+  use DateTime;
+  use Driver\SQL\Condition\Compare;
+  use Driver\SQL\Query\Select;
+  use Objects\User;
+
+  class Stats extends VisitorsAPI {
+    public function __construct(User $user, bool $externalCall = false) {
+      parent::__construct($user, $externalCall, array(
+        'type' => new StringType('type', 32),
+        'date' => new Parameter('date', Parameter::TYPE_DATE, true, new DateTime())
+      ));
+    }
+
+    private function setConditions(string $type, DateTime $date, Select $query) {
+      if ($type === "yearly") {
+        $yearStart = $date->format("Y0000");
+        $yearEnd = $date->modify("+1 year")->format("Y0000");
+        $query->where(new Compare("day", $yearStart, ">="));
+        $query->where(new Compare("day", $yearEnd, "<"));
+      } else if($type === "monthly") {
+        $monthStart = $date->format("Ym00");
+        $monthEnd = $date->modify("+1 month")->format("Ym00");
+        $query->where(new Compare("day", $monthStart, ">="));
+        $query->where(new Compare("day", $monthEnd, "<"));
+      } else if($type === "weekly") {
+        $weekStart = ($date->modify("monday this week"))->format("Ymd");
+        $weekEnd = ($date->modify("sunday this week"))->format("Ymd");
+        $query->where(new Compare("day", $weekStart, ">="));
+        $query->where(new Compare("day", $weekEnd, "<="));
+      } else {
+        $this->createError("Invalid scope: $type");
+      }
+    }
+
+    public function execute($values = array()) {
+      if (!parent::execute($values)) {
+        return false;
+      }
+
+      $date = $this->getParam("date");
+      $type = $this->getParam("type");
+
+      $sql = $this->user->getSQL();
+      $query = $sql->select($sql->count(), "day")
+        ->from("Visitor")
+        ->where(new Compare("count", 1, ">"))
+        ->groupBy("day")
+        ->orderBy("day")
+        ->ascending();
+
+      $this->setConditions($type, $date, $query);
+      if (!$this->success) {
+        return false;
+      }
+
+      $res = $query->execute();
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+      if ($this->success) {
+        $this->result["type"] = $type;
+        $this->result["visitors"] = array();
+
+        foreach($res as $row) {
+          $day = DateTime::createFromFormat("Ymd", $row["day"])->format("Y/m/d");
+          $count = $row["count"];
+          $this->result["visitors"][$day] = $count;
+        }
+      }
+
+      return $this->success;
+    }
+  }
+}

core/Configuration/.gitignore

@@ -1,3 +1 @@
-Mail\.class\.php
-JWT\.class\.php
 Database\.class\.php

core/Configuration/Configuration.class.php

@@ -2,53 +2,36 @@
 
 namespace Configuration;
 
+use Objects\ConnectionData;
+
 class Configuration {
 
-  private $database;
-  private $mail;
-  private $jwt;
+  private ?ConnectionData $database;
+  private Settings $settings;
 
   function __construct() {
-  }
+    $this->database = null;
+    $this->settings = Settings::loadDefaults();
 
-  public function load() {
-    try {
-
-      $classes = array(
-        \Configuration\Database::class => &$this->database,
-        \Configuration\Mail::class => &$this->mail,
-        \Configuration\JWT::class => &$this->jwt
-      );
-
-      $success = true;
-      foreach($classes as $class => &$ref) {
-        $path = getClassPath($class);
-        if(!file_exists($path)) {
-          $success = false;
-        } else {
-          include_once $path;
-          if(class_exists($class)) {
-            $ref = new $class();
-          }
-        }
+    $class = \Configuration\Database::class;
+    $path = getClassPath($class, true);
+    if(file_exists($path) && is_readable($path)) {
+      include_once $path;
+      if(class_exists($class)) {
+        $this->database = new \Configuration\Database();
       }
-
-      return $success;
-    } catch(\Error $e) {
-      die($e);
     }
   }
 
-  public function getDatabase() { return $this->database; }
-  public function getJWT() { return $this->jwt; }
-  public function getMail() { return $this->mail; }
-
-  public function isFilePresent($className) {
-    $path = getClassPath("\\Configuration\\$className");
-    return file_exists($path);
+  public function getDatabase() : ?ConnectionData {
+    return $this->database;
   }
 
-  public function create($className, $data) {
+  public function getSettings() : Settings {
+    return $this->settings;
+  }
+
+  public function create(string $className, $data) {
     $path = getClassPath("\\Configuration\\$className");
 
     if($data) {
@@ -59,22 +42,15 @@ class Configuration {
 
           namespace Configuration;
 
-          class $className {
-
-            private \$key;
-
+          class $className extends KeyData {
+          
             public function __construct() {
-              \$this->key = '$key';
+              parent::__construct('$key');
             }
-
-            public function getKey() {
-              return \$this->key;
-            }
-          }
-
-          ?>", false
+            
+          }", false
         );
-      } else {
+      } else if($data instanceof ConnectionData) {
         $superClass = get_class($data);
         $host = addslashes($data->getHost());
         $port = intval($data->getPort());
@@ -98,22 +74,19 @@ class Configuration {
             public function __construct() {
               parent::__construct('$host', $port, '$login', '$password');$properties
             }
-          }
-
-          ?>", false
+          }", false
         );
+      } else {
+        return false;
       }
     } else {
-      $code = intendCode(
-        "<?php
-
-        ?>", false);
+      $code = "<?php";
     }
 
     return @file_put_contents($path, $code);
   }
 
-  public function delete($className) {
+  public function delete(string $className) {
     $path = getClassPath("\\Configuration\\$className");
     if(file_exists($path)) {
       return unlink($path);
@@ -121,6 +94,4 @@ class Configuration {
 
     return true;
   }
-};
-
-?>
+}

core/Configuration/CreateDatabase.class.php

@@ -2,16 +2,16 @@
 
 namespace Configuration;
 
-use \Driver\SQL\Query\CreateTable;
-use \Driver\SQL\Query\Insert;
-use \Driver\SQL\Column\Column;
-use \Driver\SQL\Strategy\UpdateStrategy;
+use Driver\SQL\SQL;
 use \Driver\SQL\Strategy\SetNullStrategy;
 use \Driver\SQL\Strategy\CascadeStrategy;
 
 class CreateDatabase {
 
-  public static function createQueries($sql) {
+  // NOTE:
+  // explicit serial ids removed due to postgres' serial implementation
+
+  public static function createQueries(SQL $sql) {
     $queries = array();
 
     // Language
@@ -23,17 +23,18 @@ class CreateDatabase {
       ->unique("code")
       ->unique("name");
 
-    $queries[] = $sql->insert("Language", array("uid", "code", "name"))
-      ->addRow(1, "en_US", 'American English')
-      ->addRow(2, "de_DE", 'Deutsch Standard');
+    $queries[] = $sql->insert("Language", array("code", "name"))
+      ->addRow( "en_US", 'American English')
+      ->addRow( "de_DE", 'Deutsch Standard');
 
     $queries[] = $sql->createTable("User")
       ->addSerial("uid")
       ->addString("email", 64, true)
       ->addString("name", 32)
-      ->addString("salt", 16)
-      ->addString("password", 64)
+      ->addString("password", 128)
+      ->addBool("confirmed", false)
       ->addInt("language_id", true, 1)
+      ->addDateTime("registered_at", false, $sql->currentTimestamp())
       ->primaryKey("uid")
       ->unique("email")
       ->unique("name")
@@ -49,35 +50,39 @@ class CreateDatabase {
       ->addString("browser", 64)
       ->addJson("data", false, '{}')
       ->addBool("stay_logged_in", true)
+      ->addString("csrf_token", 16 )
       ->primaryKey("uid", "user_id")
       ->foreignKey("user_id", "User", "uid", new CascadeStrategy());
 
     $queries[] = $sql->createTable("UserToken")
       ->addInt("user_id")
       ->addString("token", 36)
-      ->addEnum("token_type", array("password_reset", "confirmation"))
+      ->addEnum("token_type", array("password_reset", "email_confirm", "invite"))
       ->addDateTime("valid_until")
+      ->addBool("used", false)
       ->foreignKey("user_id", "User", "uid", new CascadeStrategy());
-
     $queries[] = $sql->createTable("Group")
       ->addSerial("uid")
       ->addString("name", 32)
+      ->addString("color", 10)
       ->primaryKey("uid")
       ->unique("name");
 
-    $queries[] = $sql->insert("Group", array("uid", "name"))
-      ->addRow(USER_GROUP_DEFAULT, "Default")
-      ->addRow(USER_GROUP_ADMIN, "Administrator");
+    $queries[] = $sql->insert("Group", array("name", "color"))
+      ->addRow(USER_GROUP_MODERATOR_NAME, "#007bff")
+      ->addRow(USER_GROUP_SUPPORT_NAME, "#28a745")
+      ->addRow(USER_GROUP_ADMIN_NAME, "#dc3545");
 
     $queries[] = $sql->createTable("UserGroup")
       ->addInt("user_id")
       ->addInt("group_id")
       ->unique("user_id", "group_id")
-      ->foreignKey("user_id", "User", "uid")
-      ->foreignKey("group_id", "Group", "uid");
+      ->foreignKey("user_id", "User", "uid", new CascadeStrategy())
+      ->foreignKey("group_id", "Group", "uid", new CascadeStrategy());
 
     $queries[] = $sql->createTable("Notification")
       ->addSerial("uid")
+      ->addEnum("type", array("default","message","warning"), false, "default")
       ->addDateTime("created_at", false, $sql->currentTimestamp())
       ->addString("title", 32)
       ->addString("message", 256)
@@ -86,7 +91,7 @@ class CreateDatabase {
     $queries[] = $sql->createTable("UserNotification")
       ->addInt("user_id")
       ->addInt("notification_id")
-      ->addBool("seen")
+      ->addBool("seen", false)
       ->foreignKey("user_id", "User", "uid")
       ->foreignKey("notification_id", "Notification", "uid")
       ->unique("user_id", "notification_id");
@@ -94,7 +99,7 @@ class CreateDatabase {
     $queries[] = $sql->createTable("GroupNotification")
       ->addInt("group_id")
       ->addInt("notification_id")
-      ->addBool("seen")
+      ->addBool("seen", false)
       ->foreignKey("group_id", "Group", "uid")
       ->foreignKey("notification_id", "Notification", "uid")
       ->unique("group_id", "notification_id");
@@ -108,8 +113,116 @@ class CreateDatabase {
       ->primaryKey("uid")
       ->foreignKey("user_id", "User", "uid");
 
+    $queries[] = $sql->createTable("Visitor")
+      ->addInt("day")
+      ->addInt("count", false, 1)
+      ->addString("cookie", 26)
+      ->unique("day", "cookie");
+
+    $queries[] = $sql->createTable("Route")
+      ->addSerial("uid")
+      ->addString("request", 128)
+      ->addEnum("action", array("redirect_temporary", "redirect_permanently", "static", "dynamic"))
+      ->addString("target", 128)
+      ->addString("extra", 64, true)
+      ->addBool("active", true)
+      ->primaryKey("uid");
+
+    $queries[] = $sql->insert("Route", array("request", "action", "target", "extra"))
+      ->addRow("^/admin(/.*)?$", "dynamic", "\\Documents\\Admin", NULL)
+      ->addRow("^/register(/)?$", "dynamic", "\\Documents\\Account", "\\Views\\Account\\Register")
+      ->addRow("^/confirmEmail(/)?$", "dynamic", "\\Documents\\Account", "\\Views\\Account\\ConfirmEmail")
+      ->addRow("^/acceptInvite(/)?$", "dynamic", "\\Documents\\Account", "\\Views\\Account\\AcceptInvite")
+      ->addRow("^/resetPassword(/)?$", "dynamic", "\\Documents\\Account", "\\Views\\Account\\ResetPassword")
+      ->addRow("^/$", "static", "/static/welcome.html", NULL);
+
+    $queries[] = $sql->createTable("Settings")
+      ->addString("name", 32)
+      ->addString("value", 1024, true)
+      ->addBool("private", false) // these values are not returned from '/api/settings/get', but can be changed
+      ->addBool("readonly", false) // these values are neither returned, nor can be changed from outside
+      ->primaryKey("name");
+
+    $settingsQuery = $sql->insert("Settings", array("name", "value", "private", "readonly"))
+      // ->addRow("mail_enabled", "0") # this key will be set during installation
+      ->addRow("mail_host", "", false, false)
+      ->addRow("mail_port", "", false, false)
+      ->addRow("mail_username", "", false, false)
+      ->addRow("mail_password", "", true, false)
+      ->addRow("mail_from", "", false, false)
+      ->addRow("message_confirm_email", self::MessageConfirmEmail(), false, false)
+      ->addRow("message_accept_invite", self::MessageAcceptInvite(), false, false)
+      ->addRow("message_reset_password", self::MessageResetPassword(), false, false);
+
+    (Settings::loadDefaults())->addRows($settingsQuery);
+    $queries[] = $settingsQuery;
+
+    $queries[] = $sql->createTable("ContactRequest")
+      ->addSerial("uid")
+      ->addString("from_name", 32)
+      ->addString("from_email", 64)
+      ->addString("message", 512)
+      ->addDateTime("created_at", false, $sql->currentTimestamp())
+      ->primaryKey("uid");
+
+    $queries[] = $sql->createTable("ApiPermission")
+      ->addString("method", 32)
+      ->addJson("groups", true, '[]')
+      ->addString("description", 128, false, "")
+      ->primaryKey("method");
+
+    $queries[] = $sql->insert("ApiPermission", array("method", "groups", "description"))
+      ->addRow("ApiKey/create", array(), "Allows users to create API-Keys for themselves")
+      ->addRow("ApiKey/fetch", array(), "Allows users to list their API-Keys")
+      ->addRow("ApiKey/refresh", array(), "Allows users to refresh their API-Keys")
+      ->addRow("ApiKey/revoke", array(), "Allows users to revoke their API-Keys")
+      ->addRow("Groups/fetch", array(USER_GROUP_SUPPORT, USER_GROUP_ADMIN), "Allows users to list all available groups")
+      ->addRow("Groups/create", array(USER_GROUP_ADMIN), "Allows users to create a new groups")
+      ->addRow("Groups/delete", array(USER_GROUP_ADMIN), "Allows users to delete a group")
+      ->addRow("Routes/fetch", array(USER_GROUP_ADMIN), "Allows users to list all configured routes")
+      ->addRow("Routes/save", array(USER_GROUP_ADMIN), "Allows users to create, delete and modify routes")
+      ->addRow("Mail/test", array(USER_GROUP_SUPPORT, USER_GROUP_ADMIN), "Allows users to send a test email to a given address")
+      ->addRow("Settings/get", array(USER_GROUP_ADMIN), "Allows users to fetch server settings")
+      ->addRow("Settings/set", array(USER_GROUP_ADMIN), "Allows users create, delete or modify server settings")
+      ->addRow("Stats", array(USER_GROUP_ADMIN, USER_GROUP_SUPPORT), "Allows users to fetch server stats")
+      ->addRow("User/create", array(USER_GROUP_ADMIN), "Allows users to create a new user, email address does not need to be confirmed")
+      ->addRow("User/fetch", array(USER_GROUP_ADMIN, USER_GROUP_SUPPORT), "Allows users to list all registered users")
+      ->addRow("User/get", array(USER_GROUP_ADMIN, USER_GROUP_SUPPORT), "Allows users to get information about a single user")
+      ->addRow("User/invite", array(USER_GROUP_ADMIN), "Allows users to create a new user and send them an invitation link")
+      ->addRow("User/edit", array(USER_GROUP_ADMIN), "Allows users to edit details and group memberships of any user")
+      ->addRow("User/delete", array(USER_GROUP_ADMIN), "Allows users to delete any other user")
+      ->addRow("Permission/fetch", array(USER_GROUP_ADMIN), "Allows users to list all API permissions")
+      ->addRow("Visitors/stats", array(USER_GROUP_ADMIN, USER_GROUP_SUPPORT), "Allows users to see visitor statistics");
+
     return $queries;
   }
-}
 
-?>
+  private static function MessageConfirmEmail() : string {
+    return "Hello {{username}},<br>" .
+      "You recently created an account on {{site_name}}. Please click on the following link to " .
+      "confirm your email address and complete your registration. If you haven't registered an " .
+      "account, you can simply ignore this email. The link is valid for the next 48 hours:<br><br> " .
+      "<a href=\"{{link}}\">{{link}}</a><br><br> " .
+      "Best Regards<br> " .
+      "{{site_name}} Administration";
+  }
+
+  private static function MessageAcceptInvite() : string {
+    return "Hello {{username}},<br>" .
+      "You were invited to create an account on {{site_name}}. Please click on the following link to " .
+      "confirm your email address and complete your registration by choosing a new password. " .
+      "If you want to decline the invitation, you can simply ignore this email. The link is valid for the next 7 days:<br><br>" .
+      "<a href=\"{{link}}\">{{link}}</a><br><br>" .
+      "Best Regards<br>" .
+      "{{site_name}} Administration";
+  }
+
+  private static function MessageResetPassword() : string {
+    return "Hello {{username}},<br>" .
+      "you requested a password reset on {{site_name}}. Please click on the following link to " .
+      "choose a new password. If this request was not intended, you can simply ignore the email. The Link is valid for one hour:<br><br>" .
+      "<a href=\"{{link}}\">{{link}}</a><br><br>" .
+      "Best Regards<br>" .
+      "{{site_name}} Administration";
+  }
+}

core/Configuration/Settings.class.php

@@ -0,0 +1,107 @@
+<?php
+
+/**
+ * Do not change settings here, they are dynamically loaded from database.
+ */
+
+namespace Configuration;
+
+use Driver\SQL\Query\Insert;
+use Objects\User;
+
+class Settings {
+
+  private string $siteName;
+  private string $baseUrl;
+  private string $jwtSecret;
+  private bool $installationComplete;
+  private bool $registrationAllowed;
+  private bool $recaptchaEnabled;
+  private string $recaptchaPublicKey;
+  private string $recaptchaPrivateKey;
+
+  public function getJwtSecret(): string {
+    return $this->jwtSecret;
+  }
+
+  public function isInstalled() {
+    return $this->installationComplete;
+  }
+
+  public static function loadDefaults() : Settings {
+    $hostname = $_SERVER["SERVER_NAME"];
+    $protocol = getProtocol();
+    $jwt = generateRandomString(32);
+
+    $settings = new Settings();
+    $settings->siteName = "WebBase";
+    $settings->baseUrl = "$protocol://$hostname";
+    $settings->jwtSecret = $jwt;
+    $settings->installationComplete = false;
+    $settings->registrationAllowed = false;
+    $settings->recaptchaPublicKey = "";
+    $settings->recaptchaPrivateKey = "";
+    $settings->recaptchaEnabled = false;
+    return $settings;
+  }
+
+  public function loadFromDatabase(User $user) {
+    $req = new \Api\Settings\Get($user);
+    $success = $req->execute();
+
+    if ($success) {
+      $result = $req->getResult()["settings"];
+      $this->siteName = $result["site_name"] ?? $this->siteName;
+      $this->registrationAllowed = $result["user_registration_enabled"] ?? $this->registrationAllowed;
+      $this->installationComplete = $result["installation_completed"] ?? $this->installationComplete;
+      $this->jwtSecret = $result["jwt_secret"] ?? $this->jwtSecret;
+      $this->recaptchaEnabled = $result["recaptcha_enabled"] ?? $this->recaptchaEnabled;
+      $this->recaptchaPublicKey = $result["recaptcha_public_key"] ?? $this->recaptchaPublicKey;
+      $this->recaptchaPrivateKey = $result["recaptcha_private_key"] ?? $this->recaptchaPrivateKey;
+
+      if (!isset($result["jwt_secret"])) {
+        $req = new \Api\Settings\Set($user);
+        $req->execute(array("settings" => array(
+          "jwt_secret" => $this->jwtSecret
+        )));
+      }
+    }
+
+    return false;
+  }
+
+  public function addRows(Insert $query) {
+    $query->addRow("site_name", $this->siteName, false, false)
+      ->addRow("base_url", $this->baseUrl, false, false)
+      ->addRow("user_registration_enabled", $this->registrationAllowed ? "1" : "0", false, false)
+      ->addRow("installation_completed", $this->installationComplete ? "1" : "0", true, true)
+      ->addRow("jwt_secret", $this->jwtSecret, true, true)
+      ->addRow("recaptcha_enabled", $this->recaptchaEnabled ? "1" : "0", false, false)
+      ->addRow("recaptcha_public_key", $this->recaptchaPublicKey, false, false)
+      ->addRow("recaptcha_private_key", $this->recaptchaPrivateKey, true, false);
+  }
+
+  public function getSiteName() : string {
+    return $this->siteName;
+  }
+
+  public function getBaseUrl() : string {
+    return $this->baseUrl;
+  }
+
+  public function isRecaptchaEnabled() : bool {
+    return $this->recaptchaEnabled;
+  }
+
+  public function getRecaptchaSiteKey() : string {
+    return $this->recaptchaPublicKey;
+  }
+
+  public function getRecaptchaSecretKey() : string {
+    return $this->recaptchaPrivateKey;
+  }
+
+  public function isRegistrationAllowed() : bool {
+    return $this->registrationAllowed;
+  }
+}

core/Documents/Account.class.php

@@ -0,0 +1,72 @@
+<?php
+
+namespace Documents {
+
+  use Documents\Account\AccountBody;
+  use Documents\Account\AccountHead;
+  use Elements\Document;
+  use Objects\User;
+
+  class Account extends Document {
+    public function __construct(User $user, ?string $view) {
+      parent::__construct($user, AccountHead::class, AccountBody::class, $view);
+    }
+  }
+}
+
+namespace Documents\Account {
+
+  use Elements\Head;
+  use Elements\Script;
+  use Elements\SimpleBody;
+
+  class AccountHead extends Head {
+
+    public function __construct($document) {
+      parent::__construct($document);
+    }
+
+    protected function initSources() {
+      $this->loadJQuery();
+      $this->addJS(Script::CORE);
+      $this->addJS(Script::ACCOUNT);
+      $this->loadBootstrap();
+      $this->loadFontawesome();
+    }
+
+    protected function initMetas() {
+      return array(
+        array('name' => 'viewport', 'content' => 'width=device-width, initial-scale=1.0'),
+        array('name' => 'format-detection', 'content' => 'telephone=yes'),
+        array('charset' => 'utf-8'),
+        array("http-equiv" => 'expires', 'content' => '0'),
+        array("name" => 'robots', 'content' => 'noarchive'),
+      );
+    }
+
+    protected function initRawFields() {
+      return array();
+    }
+
+    protected function initTitle() {
+      return "Account";
+    }
+  }
+
+  class AccountBody extends SimpleBody {
+
+    public function __construct($document) {
+      parent::__construct($document);
+    }
+
+    protected function getContent() {
+
+      $view = $this->getDocument()->getView();
+      if ($view === null) {
+        return "The page you does not exist or is no longer valid. <a href='/'>Return to start page</a>";
+      }
+
+      return $view->getCode();
+    }
+  }
+}

core/Documents/Admin.class.php

@@ -1,29 +1,35 @@
 <?php
 
 namespace Documents {
-  class Admin extends \Elements\Document {
-    public function __construct($user) {
-      parent::__construct($user, Admin\Head::class, Admin\Body::class);
+
+  use Documents\Admin\AdminHead;
+  use Elements\Document;
+  use Objects\User;
+  use Views\Admin\AdminDashboardBody;
+  use Views\Admin\LoginBody;
+
+  class Admin extends Document {
+    public function __construct(User $user, ?string $view = NULL) {
+      $body = $user->isLoggedIn() ? AdminDashboardBody::class : LoginBody::class;
+      parent::__construct($user, AdminHead::class, $body, $view);
     }
   }
 }
 
 namespace Documents\Admin {
 
-  class Head extends \Elements\Head {
+  use Elements\Head;
+  use Elements\Link;
+  use Elements\Script;
+
+  class AdminHead extends Head {
 
     public function __construct($document) {
       parent::__construct($document);
     }
 
     protected function initSources() {
-      $this->loadJQuery();
-      $this->loadBootstrap();
       $this->loadFontawesome();
-      $this->addJS(\Elements\Script::CORE);
-      $this->addCSS(\Elements\Link::CORE);
-      $this->addJS(\Elements\Script::ADMIN);
-      $this->addCSS(\Elements\Link::ADMIN);
     }
 
     protected function initMetas() {
@@ -44,26 +50,4 @@ namespace Documents\Admin {
       return "WebBase - Administration";
     }
   }
-
-  class Body extends \Elements\Body {
-
-    public function __construct($document) {
-      parent::__construct($document);
-    }
-
-    public function getCode() {
-      $html = parent::getCode();
-
-      $document = $this->getDocument();
-      if(!$document->getUser()->isLoggedIn()) {
-        $html .= new \Views\Login($document);
-      } else {
-        $html .= new \Views\Admin($document);
-      }
-
-      return $html;
-    }
-  }
-}
-
-?>
+}

core/Documents/Document404.class.php

@@ -1,27 +1,32 @@
 <?php
 
 namespace Documents {
-  class Document404 extends \Elements\Document {
-    public function __construct($user) {
-      parent::__construct($user, Document404\Head404::class, Document404\Body404::class);
+
+  use Documents\Document404\Body404;
+  use Documents\Document404\Head404;
+  use Elements\Document;
+
+  class Document404 extends Document {
+    public function __construct($user, ?string $view = NULL) {
+      parent::__construct($user, Head404::class, Body404::class, $view);
     }
   }
 }
 
 namespace Documents\Document404 {
 
-  class Head404 extends \Elements\Head {
+  use Elements\Body;
+  use Elements\Head;
+  use Elements\SimpleBody;
+  use Views\View404;
+
+  class Head404 extends Head {
 
     public function __construct($document) {
       parent::__construct($document);
     }
 
     protected function initSources() {
-      // $this->loadJQuery();
-      // $this->loadBootstrap();
-      // $this->loadFontawesome();
-      // $this->addJS(\Elements\Script::CORE);
-      // $this->addCSS(\Elements\Link::CORE);
     }
 
     protected function initMetas() {
@@ -43,18 +48,18 @@ namespace Documents\Document404 {
     }
   }
 
-  class Body404 extends \Elements\Body {
+  class Body404 extends SimpleBody {
 
     public function __construct($document) {
       parent::__construct($document);
     }
 
-    public function getCode() {
-      $html = parent::getCode();
-      $html .= "<b>404 Not Found</b>";
-      return $html;
+    public function loadView() {
+      http_response_code(404);
+    }
+
+    protected function getContent() {
+      return $this->load(View404::class);
     }
   }
 }
-
-?>

core/Documents/Install.class.php

@@ -1,9 +1,14 @@
 <?php
 
 namespace Documents {
-  class Install extends \Elements\Document {
+
+  use Documents\Install\InstallBody;
+  use Documents\Install\InstallHead;
+  use Elements\Document;
+
+  class Install extends Document {
     public function __construct($user) {
-      parent::__construct($user, Install\Head::class, Install\Body::class);
+      parent::__construct($user, InstallHead::class, InstallBody::class);
       $this->databaseRequired = false;
     }
   }
@@ -11,7 +16,17 @@ namespace Documents {
 
 namespace Documents\Install {
 
-  class Head extends \Elements\Head {
+  use Configuration\CreateDatabase;
+  use Driver\SQL\SQL;
+  use Elements\Body;
+  use Elements\Head;
+  use Elements\Link;
+  use Elements\Script;
+  use External\PHPMailer\Exception;
+  use External\PHPMailer\PHPMailer;
+  use Objects\ConnectionData;
+
+  class InstallHead extends Head {
 
     public function __construct($document) {
       parent::__construct($document);
@@ -21,9 +36,9 @@ namespace Documents\Install {
       $this->loadJQuery();
       $this->loadBootstrap();
       $this->loadFontawesome();
-      $this->addJS(\Elements\Script::CORE);
-      $this->addCSS(\Elements\Link::CORE);
-      $this->addJS(\Elements\Script::INSTALL);
+      $this->addJS(Script::CORE);
+      $this->addCSS(Link::CORE);
+      $this->addJS(Script::INSTALL);
     }
 
     protected function initMetas() {
@@ -46,27 +61,31 @@ namespace Documents\Install {
 
   }
 
-  class Body extends \Elements\Body {
+  class InstallBody extends Body {
 
     // Status enum
     const NOT_STARTED = 0;
     const PENDING = 1;
-    const SUCCESFULL = 2;
+    const SUCCESSFUL = 2;
     const ERROR = 3;
 
     // Step enum
-    const CHECKING_REQUIRMENTS = 1;
+    const CHECKING_REQUIREMENTS = 1;
     const DATABASE_CONFIGURATION = 2;
     const CREATE_USER = 3;
     const ADD_MAIL_SERVICE = 4;
     const FINISH_INSTALLATION = 5;
 
     //
-    private $errorString;
+    private string $errorString;
+    private int $currentStep;
+    private array $steps;
 
     function __construct($document) {
       parent::__construct($document);
       $this->errorString = "";
+      $this->currentStep = InstallBody::CHECKING_REQUIREMENTS;
+      $this->steps = array();
     }
 
     private function getParameter($name) {
@@ -80,7 +99,7 @@ namespace Documents\Install {
     private function getCurrentStep() {
 
       if(!$this->checkRequirements()["success"]) {
-        return self::CHECKING_REQUIRMENTS;
+        return self::CHECKING_REQUIREMENTS;
       }
 
       $user = $this->getDocument()->getUser();
@@ -92,6 +111,10 @@ namespace Documents\Install {
       }
 
       $sql = $user->getSQL();
+      if(!$sql || !$sql->isConnected()) {
+        return self::DATABASE_CONFIGURATION;
+      }
+
       $countKeyword = $sql->count();
       $res = $sql->select($countKeyword)->from("User")->execute();
       if ($res === FALSE) {
@@ -104,19 +127,28 @@ namespace Documents\Install {
         }
       }
 
-      if($step === self::ADD_MAIL_SERVICE && $config->isFilePresent("Mail")) {
-        $step = self::FINISH_INSTALLATION;
-        if(!$config->isFilePresent("JWT") && !$config->create("JWT", generateRandomString(32))) {
-          $this->errorString = "Unable to create jwt file";
-        } else {
-          $req = new \Api\Notifications\Create($user);
-          $success = $req->execute(array(
-            "title" => "Welcome",
-            "message" => "Your Web-base was successfully installed. Check out the admin dashboard. Have fun!",
-            "groupId" => USER_GROUP_ADMIN)
-          );
+      if ($step === self::ADD_MAIL_SERVICE) {
+        $req = new \Api\Settings\Get($user);
+        $success = $req->execute(array("key" => "^mail_enabled$"));
+        if (!$success) {
+          $this->errorString = $req->getLastError();
+          return self::DATABASE_CONFIGURATION;
+        } else if (isset($req->getResult()["settings"]["mail_enabled"])) {
+          $step = self::FINISH_INSTALLATION;
+
+          $req = new \Api\Settings\Set($user);
+          $success = $req->execute(array("settings" => array("installation_completed" => "1")));
           if (!$success) {
             $this->errorString = $req->getLastError();
+          } else {
+            $req = new \Api\Notifications\Create($user);
+            $req->execute(array(
+                "title" => "Welcome",
+                "message" => "Your Web-base was successfully installed. Check out the admin dashboard. Have fun!",
+                "groupId" => USER_GROUP_ADMIN
+              )
+            );
+            $this->errorString = $req->getLastError();
           }
         }
       }
@@ -145,8 +177,8 @@ namespace Documents\Install {
         }
       }
 
-      if(version_compare(PHP_VERSION, '7.1', '<')) {
-          $failedRequirements[] = "PHP Version <b>>= 7.1</b> is required. Got: <b>" . PHP_VERSION . "</b>";
+      if(version_compare(PHP_VERSION, '7.4', '<')) {
+          $failedRequirements[] = "PHP Version <b>>= 7.4</b> is required. Got: <b>" . PHP_VERSION . "</b>";
           $success = false;
       }
 
@@ -213,16 +245,16 @@ namespace Documents\Install {
         $msg = "Unsupported database type. Must be one of: " . implode(", ", $supportedTypes);
         $success = false;
       } else {
-        $connectionData = new \Objects\ConnectionData($host, $port, $username, $password);
+        $connectionData = new ConnectionData($host, $port, $username, $password);
         $connectionData->setProperty('database', $database);
         $connectionData->setProperty('encoding', $encoding);
         $connectionData->setProperty('type', $type);
-        $sql = \Driver\SQL\SQL::createConnection($connectionData);
+        $sql = SQL::createConnection($connectionData);
         $success = false;
-        if(!($sql instanceof \Driver\SQL\SQL)) {
-          $msg = "Error connecting to database: " . str($sql);
+        if(is_string($sql)) {
+          $msg = "Error connecting to database: $sql";
         } else if(!$sql->isConnected()) {
-          if (!$sql->checkRequirements()["success"]) {
+          if (!$sql->checkRequirements()) {
             $driverName = $sql->getDriverName();
             $installLink = "https://www.php.net/manual/en/$driverName.setup.php";
             $link = $this->createExternalLink($installLink);
@@ -234,7 +266,7 @@ namespace Documents\Install {
 
           $msg = "";
           $success = true;
-          $queries = \Configuration\CreateDatabase::createQueries($sql);
+          $queries = CreateDatabase::createQueries($sql);
           foreach($queries as $query) {
             if (!($res = $query->execute())) {
               $msg = "Error creating tables: " . $sql->getLastError();
@@ -243,7 +275,8 @@ namespace Documents\Install {
             }
           }
 
-          if($success && !$this->getDocument()->getUser()->getConfiguration()->create("Database", $connectionData)) {
+          $config = $this->getDocument()->getUser()->getConfiguration();
+          if(!$config->create("Database", $connectionData)) {
             $success = false;
             $msg = "Unable to write file";
           }
@@ -269,8 +302,8 @@ namespace Documents\Install {
       $username = $this->getParameter("username");
       $password = $this->getParameter("password");
       $confirmPassword = $this->getParameter("confirmPassword");
+      $email = $this->getParameter("email") ?? "";
 
-      $msg = $this->errorString;
       $success = true;
       $missingInputs = array();
 
@@ -292,29 +325,23 @@ namespace Documents\Install {
       if(!$success) {
         $msg = "Please fill out the following inputs:<br>" .
           $this->createUnorderedList($missingInputs);
-      } else if(strlen($username) < 5 || strlen($username) > 32) {
-        $msg = "The username should be between 5 and 32 characters long";
-        $success = false;
-      } else if(strcmp($password, $confirmPassword) !== 0) {
-        $msg = "The given passwords do not match";
-        $success = false;
-      } else if(strlen($password) < 6) {
-        $msg = "The password should be at least 6 characters long";
-        $success = false;
       } else {
-        $salt = generateRandomString(16);
-        $hash = hash('sha256', $password . $salt);
         $sql = $user->getSQL();
+        $req = new \Api\User\Create($user);
+        $success = $req->execute(array(
+          'username' => $username,
+          'email' => $email,
+          'password' => $password,
+          'confirmPassword' => $confirmPassword,
+        ));
 
-        $success = $sql->insert("User", array("name", "salt", "password"))
-          ->addRow($username, $salt, $hash)
-          ->returning("uid")
-          ->execute()
-          && $sql->insert("UserGroup", array("group_id", "user_id"))
-          ->addRow(USER_GROUP_ADMIN, $sql->getLastInsertId())
-          ->execute();
-
-        $msg = $sql->getLastError();
+        $msg = $req->getLastError();
+        if ($success) {
+          $success = $sql->insert("UserGroup", array("group_id", "user_id"))
+            ->addRow(USER_GROUP_ADMIN, $req->getResult()["userId"])
+            ->execute();
+          $msg = $sql->getLastError();
+        }
       }
 
       return array("msg" => $msg, "success" => $success);
@@ -333,10 +360,9 @@ namespace Documents\Install {
       $success = true;
       $msg = $this->errorString;
       if($this->getParameter("skip") === "true") {
-        if(!$user->getConfiguration()->create("Mail", null)) {
-          $success = false;
-          $msg = "Unable to create file";
-        }
+        $req = new \Api\Settings\Set($user);
+        $success = $req->execute(array("settings" => array( "mail_enabled" => "0" )));
+        $msg = $req->getLastError();
       } else {
 
         $address = $this->getParameter("address");
@@ -375,7 +401,7 @@ namespace Documents\Install {
         } else {
           $success = false;
 
-          $mail = new \External\PHPMailer\PHPMailer(true);
+          $mail = new PHPMailer(true);
           $mail->IsSMTP();
           $mail->SMTPAuth = true;
           $mail->Username = $username;
@@ -395,16 +421,20 @@ namespace Documents\Install {
               $msg = "";
               $mail->smtpClose();
             }
-          } catch(\External\PHPMailer\Exception $error) {
+          } catch(Exception $error) {
             $msg = "Could not connect to SMTP Server: " . $error->errorMessage();
           }
 
           if($success) {
-            $connectionData = new \Objects\ConnectionData($address, $port, $username, $password);
-            if(!$user->getConfiguration()->create("Mail", $connectionData)) {
-              $success = false;
-              $msg = "Unable to create file";
-            }
+            $req = new \Api\Settings\Set($user);
+            $success = $req->execute(array("settings" => array(
+              "mail_enabled" => "1",
+              "mail_host" => "$address",
+              "mail_port" => "$port",
+              "mail_username" => "$username",
+              "mail_password" => "$password",
+            )));
+            $msg = $req->getLastError();
           }
         }
       }
@@ -416,7 +446,7 @@ namespace Documents\Install {
 
       switch($this->currentStep) {
 
-        case self::CHECKING_REQUIRMENTS:
+        case self::CHECKING_REQUIREMENTS:
           return $this->checkRequirements();
 
         case self::DATABASE_CONFIGURATION:
@@ -446,26 +476,26 @@ namespace Documents\Install {
 
         switch($status) {
           case self::PENDING:
-            $statusIcon  = '<i class="fas fa-spin fa-spinner"></i>';
+            $statusIcon  = $this->createIcon("spinner");
             $statusText  = "Loading…";
             $statusColor = "muted";
             break;
 
-          case self::SUCCESFULL:
-            $statusIcon  = '<i class="fas fa-check-circle"></i>';
-            $statusText  = "Successfull";
+          case self::SUCCESSFUL:
+            $statusIcon  = $this->createIcon("check-circle");
+            $statusText  = "Successful";
             $statusColor = "success";
             break;
 
           case self::ERROR:
-            $statusIcon  = '<i class="fas fa-times-circle"></i>';
+            $statusIcon  = $this->createIcon("times-circle");
             $statusText  = "Failed";
             $statusColor = "danger";
             break;
 
           case self::NOT_STARTED:
           default:
-            $statusIcon = '<i class="far fa-circle"></i>';
+            $statusIcon = $this->createIcon("circle", "far");
             $statusText = "Pending";
             $statusColor = "muted";
             break;
@@ -552,7 +582,7 @@ namespace Documents\Install {
     private function createProgessMainview() {
 
       $views = array(
-        self::CHECKING_REQUIRMENTS => array(
+        self::CHECKING_REQUIREMENTS => array(
           "title" => "Application Requirements",
           "progressText" => "Checking requirements, please wait a moment…"
         ),
@@ -585,6 +615,7 @@ namespace Documents\Install {
           "title" => "Create a User",
           "form" => array(
             array("title" => "Username", "name"  => "username", "type"  => "text", "required" => true),
+            array("title" => "Email", "name"  => "email", "type"  => "text"),
             array("title" => "Password", "name"  => "password", "type"  => "password", "required" => true),
             array("title" => "Confirm Password", "name"  => "confirmPassword", "type"  => "password", "required" => true),
           ),
@@ -661,7 +692,7 @@ namespace Documents\Install {
       );
 
       if($this->currentStep != self::FINISH_INSTALLATION) {
-        if ($this->currentStep == self::CHECKING_REQUIRMENTS) {
+        if ($this->currentStep == self::CHECKING_REQUIREMENTS) {
           $buttons[] = array("title" => "Retry", "type" => "success", "id" => "btnRetry", "float" => "right");
         } else {
           $buttons[] = array("title" => "Submit", "type" => "success", "id" => "btnSubmit", "float" => "right");
@@ -683,7 +714,7 @@ namespace Documents\Install {
         $id = $button["id"];
         $float = $button["float"];
         $disabled = (isset($button["disabled"]) && $button["disabled"]) ? " disabled" : "";
-        $button = "<button type=\"button\" id=\"$id\" class=\"btn btn-$type margin-xs\"$disabled>$title</button>";
+        $button = "<button type=\"button\" id=\"$id\" class=\"btn btn-$type m-1\"$disabled>$title</button>";
 
         if($float === "left") {
           $buttonsLeft .= $button;
@@ -701,12 +732,11 @@ namespace Documents\Install {
       return $html;
     }
 
-
     function getCode() {
       $html = parent::getCode();
 
       $this->steps = array(
-        self::CHECKING_REQUIRMENTS => array(
+        self::CHECKING_REQUIREMENTS => array(
           "title" => "Checking requirements",
           "status" => self::ERROR
         ),
@@ -731,12 +761,12 @@ namespace Documents\Install {
       $this->currentStep = $this->getCurrentStep();
 
       // set status
-      for($step = self::CHECKING_REQUIRMENTS; $step < $this->currentStep; $step++) {
-        $this->steps[$step]["status"] = self::SUCCESFULL;
+      for($step = self::CHECKING_REQUIREMENTS; $step < $this->currentStep; $step++) {
+        $this->steps[$step]["status"] = self::SUCCESSFUL;
       }
 
       if($this->currentStep == self::FINISH_INSTALLATION) {
-        $this->steps[$this->currentStep]["status"] = self::SUCCESFULL;
+        $this->steps[$this->currentStep]["status"] = self::SUCCESSFUL;
       }
 
       // POST
@@ -748,6 +778,7 @@ namespace Documents\Install {
 
       $progressSidebar = $this->createProgressSidebar();
       $progressMainview = $this->createProgessMainview();
+
       $errorStyle = ($this->errorString ? '' : ' style="display:none"');
       $errorClass = ($this->errorString ? ' alert-danger' : '');
 
@@ -773,7 +804,7 @@ namespace Documents\Install {
             </div>
             <div class=\"col-md-8 order-md-1\">
               $progressMainview
-              <div class=\"alert$errorClass margin-top-m\" id=\"status\"$errorStyle>$this->errorString</div>
+              <div class=\"alert$errorClass mt-4\" id=\"status\"$errorStyle>$this->errorString</div>
             </div>
           </div>
         </div>
@@ -781,9 +812,5 @@ namespace Documents\Install {
 
       return $html;
     }
-
   }
-
 }
-
-?>

core/Driver/SQL/Column/BoolColumn.class.php

@@ -9,5 +9,3 @@ class BoolColumn extends Column {
   }
 
 }
-
-?>

core/Driver/SQL/Column/Column.class.php

@@ -4,8 +4,8 @@ namespace Driver\SQL\Column;
 
 class Column {
 
-  private $name;
-  private $nullable;
+  private string $name;
+  private bool $nullable;
   private $defaultValue;
 
   public function __construct($name, $nullable = false, $defaultValue = NULL) {
@@ -18,6 +18,4 @@ class Column {
   public function notNull() { return !$this->nullable; }
   public function getDefaultValue() { return $this->defaultValue; }
 
-}
-
-?>
+}

core/Driver/SQL/Column/DateTimeColumn.class.php

@@ -7,6 +7,4 @@ class DateTimeColumn extends Column {
   public function __construct($name, $nullable=false, $defaultValue=NULL) {
     parent::__construct($name, $nullable, $defaultValue);
   }
-}
-
-?>
+}

core/Driver/SQL/Column/EnumColumn.class.php

@@ -4,7 +4,7 @@ namespace Driver\SQL\Column;
 
 class EnumColumn extends Column {
 
-  private $values;
+  private array $values;
 
   public function __construct($name, $values, $nullable=false, $defaultValue=NULL) {
     parent::__construct($name, $nullable, $defaultValue);
@@ -13,5 +13,3 @@ class EnumColumn extends Column {
 
   public function getValues() { return $this->values; }
 }
-
-?>

core/Driver/SQL/Column/IntColumn.class.php

@@ -9,5 +9,3 @@ class IntColumn extends Column {
   }
 
 }
-
-?>

core/Driver/SQL/Column/JsonColumn.class.php

@@ -8,6 +8,4 @@ class JsonColumn extends Column {
     parent::__construct($name, $nullable, $defaultValue);
   }
 
-}
-
-?>
+}

core/Driver/SQL/Column/SerialColumn.class.php

@@ -8,6 +8,4 @@ class SerialColumn extends Column {
     parent::__construct($name, false, $defaultValue); # not nullable
   }
 
-}
-
-?>
+}

core/Driver/SQL/Column/StringColumn.class.php

@@ -4,7 +4,7 @@ namespace Driver\SQL\Column;
 
 class StringColumn extends Column {
 
-  private $maxSize;
+  private ?int $maxSize;
 
   public function __construct($name, $maxSize=null, $nullable=false, $defaultValue=null) {
     parent::__construct($name, $nullable, $defaultValue);
@@ -12,6 +12,4 @@ class StringColumn extends Column {
   }
 
   public function getMaxSize() { return $this->maxSize; }
-}
-
-?>
+}

core/Driver/SQL/Condition/Compare.class.php

@@ -4,6 +4,10 @@ namespace Driver\SQL\Condition;
 
 class Compare extends Condition {
 
+  private string $operator;
+  private string $column;
+  private $value;
+
   public function __construct($col, $val, $operator='=') {
     $this->operator = $operator;
     $this->column = $col;
@@ -14,6 +18,4 @@ class Compare extends Condition {
   public function getValue() { return $this->value; }
   public function getOperator() { return $this->operator; }
 
-}
-
-?>
+}

core/Driver/SQL/Condition/CondAnd.class.php

@@ -4,13 +4,11 @@ namespace Driver\SQL\Condition;
 
 class CondAnd extends Condition {
 
-  private $conditions;
+  private array $conditions;
 
   public function __construct(...$conditions) {
     $this->conditions = $conditions;
   }
 
   public function getConditions() { return $this->conditions; }
-}
-
-?>
+}

core/Driver/SQL/Condition/CondBool.class.php

@@ -4,12 +4,12 @@ namespace Driver\SQL\Condition;
 
 class CondBool extends Condition {
 
+  private $value;
+
   public function __construct($val) {
     $this->value = $val;
   }
 
   public function getValue() { return $this->value; }
 
-}
-
-?>
+}

core/Driver/SQL/Condition/CondIn.class.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace Driver\SQL\Condition;
+
+class CondIn extends Condition {
+
+  private string $column;
+  private $expression;
+
+  public function __construct(string $column, $expression) {
+    $this->column = $column;
+    $this->expression = $expression;
+  }
+
+  public function getColumn() { return $this->column; }
+  public function getExpression() { return $this->expression; }
+}

core/Driver/SQL/Condition/CondKeyword.class.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace Driver\SQL\Condition;
+
+abstract class CondKeyword extends Condition {
+
+  private $leftExpression;
+  private $rightExpression;
+  private string $keyword;
+
+  public function __construct($keyword, $leftExpression, $rightExpression) {
+    $this->leftExpression = $leftExpression;
+    $this->rightExpression = $rightExpression;
+    $this->keyword = $keyword;
+  }
+
+  public function getLeftExp() { return $this->leftExpression; }
+  public function getRightExp() { return $this->rightExpression; }
+  public function getKeyword() { return $this->keyword; }
+}

core/Driver/SQL/Condition/CondLike.class.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Driver\SQL\Condition;
+
+class CondLike extends CondKeyword {
+
+  public function __construct($leftExpression, $rightExpression) {
+    parent::__construct("LIKE", $leftExpression, $rightExpression);
+  }
+}

core/Driver/SQL/Condition/CondNot.class.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace Driver\SQL\Condition;
+
+class CondNot extends Condition {
+
+  private $expression; // string or condition
+
+  public function __construct($expression) {
+    $this->expression = $expression;
+  }
+
+  public function getExpression() {
+    return $this->expression;
+  }
+}

core/Driver/SQL/Condition/CondOr.class.php

@@ -4,13 +4,11 @@ namespace Driver\SQL\Condition;
 
 class CondOr extends Condition {
 
-  private $conditions;
+  private array $conditions;
 
   public function __construct(...$conditions) {
-    $this->conditions = $conditions;
+    $this->conditions = (!empty($conditions) && is_array($conditions[0])) ? $conditions[0] : $conditions;
   }
 
   public function getConditions() { return $this->conditions; }
-}
-
-?>
+}

core/Driver/SQL/Condition/CondRegex.class.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace Driver\SQL\Condition;
+
+class CondRegex extends CondKeyword {
+
+  public function __construct($leftExpression, $rightExpression) {
+    parent::__construct("REGEXP", $leftExpression, $rightExpression);
+  }
+
+}

core/Driver/SQL/Condition/Condition.class.php

@@ -4,6 +4,4 @@ namespace Driver\SQL\Condition;
 
 abstract class Condition {
   
-}
-
-?>
+}

core/Driver/SQL/Constraint/Constraint.class.php

@@ -4,13 +4,11 @@ namespace Driver\SQL\Constraint;
 
 abstract class Constraint {
 
-  private $columnName;
+  private array $columnNames;
 
-  public function __construct($columnName) {
-    $this->columnName = $columnName;
+  public function __construct($columnNames) {
+    $this->columnNames = (!is_array($columnNames) ? array($columnNames) : $columnNames);
   }
 
-  public function getColumnName() { return $this->columnName; }
-};
-
-?>
+  public function getColumnNames() { return $this->columnNames; }
+}

core/Driver/SQL/Constraint/ForeignKey.class.php

@@ -2,11 +2,13 @@
 
 namespace Driver\SQL\Constraint;
 
+use Driver\SQL\Strategy\Strategy;
+
 class ForeignKey extends Constraint {
 
-  private $referencedTable;
-  private $referencedColumn;
-  private $strategy;
+  private string $referencedTable;
+  private string $referencedColumn;
+  private ?Strategy $strategy;
 
   public function __construct($name, $refTable, $refColumn, $strategy = NULL) {
     parent::__construct($name);
@@ -18,6 +20,4 @@ class ForeignKey extends Constraint {
   public function getReferencedTable() { return $this->referencedTable; }
   public function getReferencedColumn() { return $this->referencedColumn; }
   public function onDelete() { return $this->strategy; }
-};
-
-?>
+}

core/Driver/SQL/Constraint/PrimaryKey.class.php

@@ -8,6 +8,4 @@ class PrimaryKey extends Constraint {
     parent::__construct((!empty($names) && is_array($names[0])) ? $names[0] : $names);
   }
 
-};
-
-?>
+}

core/Driver/SQL/Constraint/Unique.class.php

@@ -8,6 +8,4 @@ class Unique extends Constraint {
     parent::__construct((!empty($names) && is_array($names[0])) ? $names[0] : $names);
   }
 
-};
-
-?>
+}

core/Driver/SQL/Expression/Add.class.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Driver\SQL\Expression;
+
+use Driver\SQL\Condition\Compare;
+
+class Add extends Compare {
+
+  public function __construct($col, $val) {
+    parent::__construct($col, $val, "+");
+  }
+
+}

core/Driver/SQL/Join.class.php

@@ -4,13 +4,13 @@ namespace Driver\SQL;
 
 class Join {
 
-  private $type;
-  private $table;
-  private $columnA;
-  private $columnB;
+  private string $type;
+  private string $table;
+  private string $columnA;
+  private string $columnB;
 
   public function __construct($type, $table, $columnA, $columnB) {
-    $this->tpye = $type;
+    $this->type = $type;
     $this->table = $table;
     $this->columnA = $columnA;
     $this->columnB = $columnB;
@@ -21,6 +21,4 @@ class Join {
   public function getColumnA() { return $this->columnA; }
   public function getColumnB() { return $this->columnB; }
 
-}
-
-?>
+}

core/Driver/SQL/Keyword.class.php

@@ -4,7 +4,7 @@ namespace Driver\SQL;
 
 class Keyword {
 
-  private $value;
+  private string $value;
 
   public function __construct($value) {
     $this->value = $value;
@@ -12,6 +12,4 @@ class Keyword {
 
   public function getValue() { return $this->value; }
 
-}
-
-?>
+}

core/Driver/SQL/MySQL.class.php

@@ -13,9 +13,9 @@ use \Driver\SQL\Column\DateTimeColumn;
 use Driver\SQL\Column\BoolColumn;
 use Driver\SQL\Column\JsonColumn;
 
-use \Driver\SQL\Strategy\CascadeStrategy;
-use \Driver\SQL\Strategy\SetDefaultStrategy;
-use \Driver\SQL\Strategy\SetNullStrategy;
+use Driver\SQL\Condition\CondRegex;
+use Driver\SQL\Expression\Add;
+use Driver\SQL\Strategy\Strategy;
 use \Driver\SQL\Strategy\UpdateStrategy;
 
 class MySQL extends SQL {
@@ -32,7 +32,7 @@ class MySQL extends SQL {
     return 'mysqli';
   }
 
-  // Connection Managment
+  // Connection Management
   public function connect() {
 
     if(!is_null($this->connection)) {
@@ -47,7 +47,7 @@ class MySQL extends SQL {
       $this->connectionData->getPort()
     );
 
-    if (mysqli_connect_errno($this->connection)) {
+    if (mysqli_connect_errno()) {
       $this->lastError = "Failed to connect to MySQL: " . mysqli_connect_error();
       $this->connection = NULL;
       return false;
@@ -63,6 +63,7 @@ class MySQL extends SQL {
     }
 
     mysqli_close($this->connection);
+    return true;
   }
 
   public function getLastError() {
@@ -81,6 +82,8 @@ class MySQL extends SQL {
       switch($paramType) {
         case Parameter::TYPE_BOOLEAN:
           $value = $value ? 1 : 0;
+          $sqlParams[0] .= 'i';
+          break;
         case Parameter::TYPE_INT:
           $sqlParams[0] .= 'i';
           break;
@@ -99,6 +102,10 @@ class MySQL extends SQL {
           $value = $value->format('Y-m-d H:i:s');
           $sqlParams[0] .= 's';
           break;
+        case Parameter::TYPE_ARRAY:
+          $value = json_encode($value);
+          $sqlParams[0] .= 's';
+          break;
         case Parameter::TYPE_EMAIL:
         default:
           $sqlParams[0] .= 's';
@@ -161,64 +168,39 @@ class MySQL extends SQL {
     return ($success && $returnValues) ? $resultRows : $success;
   }
 
-  public function executeInsert($insert) {
-    $tableName = $this->tableName($insert->getTableName());
-    $columns = $insert->getColumns();
-    $rows = $insert->getRows();
-    $onDuplicateKey = $insert->onDuplicateKey() ?? "";
+  protected function getOnDuplicateStrategy(?Strategy $strategy, &$params) {
+    if (is_null($strategy)) {
+      return "";
+    } else if ($strategy instanceof UpdateStrategy) {
+      $updateValues = array();
+      foreach($strategy->getValues() as $key => $value) {
+        $leftColumn = $this->columnName($key);
+        if ($value instanceof Column) {
+          $columnName = $this->columnName($value->getName());
+          $updateValues[] = "$leftColumn=VALUES($columnName)";
+        } else if($value instanceof Add) {
+          $columnName = $this->columnName($value->getColumn());
+          $operator = $value->getOperator();
+          $value = $value->getValue();
+          $updateValues[] = "$leftColumn=$columnName$operator" . $this->addValue($value, $params);
+        } else {
+          $updateValues[] = "$leftColumn=" . $this->addValue($value, $params);
+        }
+      }
 
-    if (empty($rows)) {
-      $this->lastError = "No rows to insert given.";
+      return " ON DUPLICATE KEY UPDATE " . implode(",", $updateValues);
+    } else {
+      $strategyClass = get_class($strategy);
+      $this->lastError = "ON DUPLICATE Strategy $strategyClass is not supported yet.";
       return false;
     }
-
-    if (is_null($columns) || empty($columns)) {
-      $columns = "";
-      $numColumns = count($rows[0]);
-    } else {
-      $numColumns = count($columns);
-      $columns = " (" . $this->columnName($columns) . ")";
-    }
-
-    $numRows = count($rows);
-    $parameters = array();
-    $values = implode(",", array_fill(0, $numRows, "(" . implode(",", array_fill(0, $numColumns, "?")) . ")"));
-
-    foreach($rows as $row) {
-      $parameters = array_merge($parameters, $row);
-    }
-
-    if ($onDuplicateKey) {
-      if ($onDuplicateKey instanceof UpdateStrategy) {
-        $updateValues = array();
-        foreach($onDuplicateKey->getValues() as $key => $value) {
-          if ($value instanceof Column) {
-            $columnName = $value->getName();
-            $updateValues[] = "`$key`=`$columnName`";
-          } else {
-            $updateValues[] = "`$key`=" . $this->addValue($value, $parameters);
-          }
-        }
-
-        $onDuplicateKey = " ON DUPLICATE KEY UPDATE " . implode(",", $updateValues);
-      } else {
-        $strategy = get_class($onDuplicateKey);
-        $this->lastError = "ON DUPLICATE Strategy $strategy is not supported yet.";
-        return false;
-      }
-    }
-
-    $query = "INSERT INTO $tableName$columns VALUES$values$onDuplicateKey";
-    $success = $this->execute($query, $parameters);
-
-    if($success) {
-      $this->lastInsertId = mysqli_insert_id($this->connection);
-    }
-
-    return $success;
   }
 
-  public function getColumnDefinition($column) {
+  protected function fetchReturning($res, string $returningCol) {
+    $this->lastInsertId = mysqli_insert_id($this->connection);
+  }
+
+  public function getColumnDefinition(Column $column) {
     $columnName = $this->columnName($column->getName());
     $defaultValue = $column->getDefaultValue();
 
@@ -255,7 +237,7 @@ class MySQL extends SQL {
 
     $notNull = $column->notNull() ? " NOT NULL" : "";
     if (!is_null($defaultValue) || !$column->notNull()) {
-      $defaultValue = " DEFAULT " . $this->getValueDefinition($column->getDefaultValue());
+      $defaultValue = " DEFAULT " . $this->getValueDefinition($defaultValue);
     } else {
       $defaultValue = "";
     }
@@ -323,4 +305,7 @@ class MySQL extends SQL {
     return new Keyword("NOW()");
   }
 
-};
+  public function getStatus() {
+    return mysqli_stat($this->connection);
+  }
+}

core/Driver/SQL/PostgreSQL.class.php

@@ -4,7 +4,7 @@ namespace Driver\SQL;
 
 use \Api\Parameter\Parameter;
 
-use \Driver\SQL\Column\Column;
+use Driver\SQL\Column\Column;
 use \Driver\SQL\Column\IntColumn;
 use \Driver\SQL\Column\SerialColumn;
 use \Driver\SQL\Column\StringColumn;
@@ -13,10 +13,10 @@ use \Driver\SQL\Column\DateTimeColumn;
 use Driver\SQL\Column\BoolColumn;
 use Driver\SQL\Column\JsonColumn;
 
-use \Driver\SQL\Strategy\CascadeStrategy;
-use \Driver\SQL\Strategy\SetDefaultStrategy;
-use \Driver\SQL\Strategy\SetNullStrategy;
-use \Driver\SQL\Strategy\UpdateStrategy;
+use Driver\SQL\Condition\CondRegex;
+use Driver\SQL\Expression\Add;
+use Driver\SQL\Strategy\Strategy;
+use Driver\SQL\Strategy\UpdateStrategy;
 
 class PostgreSQL extends SQL {
 
@@ -32,7 +32,7 @@ class PostgreSQL extends SQL {
     return 'pgsql';
   }
 
-  // Connection Managment
+  // Connection Management
   public function connect() {
     if(!is_null($this->connection)) {
       return true;
@@ -68,13 +68,13 @@ class PostgreSQL extends SQL {
     if(is_null($this->connection))
       return;
 
-    pg_close($this->connection);
+    @pg_close($this->connection);
   }
 
   public function getLastError() {
     $lastError = parent::getLastError();
     if (empty($lastError)) {
-      $lastError = pg_last_error($this->connection) . " " . pg_last_error($this->connection);
+      $lastError = trim(pg_last_error($this->connection) . " " . pg_last_error($this->connection));
     }
 
     return $lastError;
@@ -99,6 +99,9 @@ class PostgreSQL extends SQL {
           case Parameter::TYPE_DATE_TIME:
             $value = $value->format("Y-m-d H:i:s");
             break;
+          case Parameter::TYPE_ARRAY:
+            $value = json_encode($value);
+            break;
           default:
             break;
         }
@@ -131,76 +134,48 @@ class PostgreSQL extends SQL {
     }
   }
 
-  // Querybuilder
-  public function executeInsert($insert) {
+  protected function getOnDuplicateStrategy(?Strategy $strategy, &$params) {
+      if (!is_null($strategy)) {
+        if ($strategy instanceof UpdateStrategy) {
+              $updateValues = array();
+              foreach($strategy->getValues() as $key => $value) {
+                $leftColumn = $this->columnName($key);
+                if ($value instanceof Column) {
+                  $columnName = $this->columnName($value->getName());
+                  $updateValues[] = "$leftColumn=EXCLUDED.$columnName";
+                } else if ($value instanceof Add) {
+                  $columnName = $this->columnName($value->getColumn());
+                  $operator = $value->getOperator();
+                  $value = $value->getValue();
+                  $updateValues[] = "$leftColumn=$columnName$operator" . $this->addValue($value, $params);
+                } else {
+                  $updateValues[] = "$leftColumn=" . $this->addValue($value, $parameters);
+                }
+              }
 
-    $tableName = $this->tableName($insert->getTableName());
-    $columns = $insert->getColumns();
-    $rows = $insert->getRows();
-    $onDuplicateKey = $insert->onDuplicateKey() ?? "";
-
-    if (empty($rows)) {
-      $this->lastError = "No rows to insert given.";
-      return false;
-    }
-
-    if (is_null($columns) || empty($columns)) {
-      $columnStr = "";
-    } else {
-      $columnStr = " (" . $this->columnName($columns) . ")";
-    }
-
-    $numRows = count($rows);
-    $parameters = array();
-
-    $values = array();
-    foreach($rows as $row) {
-      $rowPlaceHolder = array();
-      foreach($row as $val) {
-        $rowPlaceHolder[] = $this->addValue($val, $parameters);
-      }
-
-      $values[] = "(" . implode(",", $rowPlaceHolder) . ")";
-    }
-
-    $values = implode(",", $values);
-
-    if ($onDuplicateKey) {
-      /*if ($onDuplicateKey instanceof UpdateStrategy) {
-        $updateValues = array();
-        foreach($onDuplicateKey->getValues() as $key => $value) {
-          if ($value instanceof Column) {
-            $columnName = $value->getName();
-            $updateValues[] = "\"$key\"=\"$columnName\"";
+              $conflictingColumns = $this->columnName($strategy->getConflictingColumns());
+              $updateValues = implode(",", $updateValues);
+              return " ON CONFLICT ($conflictingColumns) DO UPDATE SET $updateValues";
           } else {
-            $updateValues[] = "\"$key\"=" . $this->addValue($value, $parameters);
+            $strategyClass = get_class($strategy);
+            $this->lastError = "ON DUPLICATE Strategy $strategyClass is not supported yet.";
+           return false;
           }
-        }
-
-        $onDuplicateKey = " ON CONFLICT DO UPDATE SET " . implode(",", $updateValues);
-      } else*/ {
-        $strategy = get_class($onDuplicateKey);
-        $this->lastError = "ON DUPLICATE Strategy $strategy is not supported yet.";
-        return false;
+      } else {
+        return "";
       }
-    }
+  }
 
-    $returningCol = $insert->getReturning();
-    $returning = $returningCol ? (" RETURNING " . $this->columnName($returningCol)) : "";
+  protected function getReturning(?string $columns) {
+    return $columns ? (" RETURNING " . $this->columnName($columns)) : "";
+  }
 
-    $query = "INSERT INTO $tableName$columnStr VALUES$values$onDuplicateKey$returning";
-    $res = $this->execute($query, $parameters, !empty($returning));
-    $success = ($res !== FALSE);
-
-    if($success && !empty($returning)) {
-      $this->lastInsertId = $res[0][$returningCol];
-    }
-
-    return $success;
+  protected function fetchReturning($res, string $returningCol) {
+    $this->lastInsertId = $res[0][$returningCol];
   }
 
   // UGLY but.. what should i do?
-  private function createEnum($enumColumn) {
+  private function createEnum(EnumColumn $enumColumn) {
     $typeName = $enumColumn->getName();
     if(!endsWith($typeName, "_type")) {
       $typeName = "${typeName}_type";
@@ -319,5 +294,27 @@ class PostgreSQL extends SQL {
   public function currentTimestamp() {
     return new Keyword("CURRENT_TIMESTAMP");
   }
-}
-?>
+
+  public function getStatus() {
+    $version = pg_version($this->connection)["client"] ?? "??";
+    $status = pg_connection_status($this->connection);
+    static $statusTexts = array(
+      PGSQL_CONNECTION_OK => "PGSQL_CONNECTION_OK",
+      PGSQL_CONNECTION_BAD => "PGSQL_CONNECTION_BAD",
+    );
+
+    return ($statusTexts[$status] ?? "Unknown") . " (v$version)";
+  }
+
+  protected function buildCondition($condition, &$params) {
+    if($condition instanceof CondRegex) {
+      $left = $condition->getLeftExp();
+      $right = $condition->getRightExp();
+      $left = ($left instanceof Column) ? $this->columnName($left->getName()) : $this->addValue($left, $params);
+      $right = ($right instanceof Column) ? $this->columnName($right->getName()) : $this->addValue($right, $params);
+      return $left . " ~ " . $right;
+    } else {
+      return parent::buildCondition($condition, $params);
+    }
+  }
+}

core/Driver/SQL/Query/CreateTable.class.php

@@ -16,10 +16,10 @@ use Driver\SQL\Constraint\ForeignKey;
 
 class CreateTable extends Query {
 
-  private $tableName;
-  private $columns;
-  private $constraints;
-  private $ifNotExists;
+  private string $tableName;
+  private array $columns;
+  private array $constraints;
+  private bool $ifNotExists;
 
   public function __construct($sql, $name) {
     parent::__construct($sql);
@@ -92,6 +92,4 @@ class CreateTable extends Query {
   public function getTableName() { return $this->tableName; }
   public function getColumns() { return $this->columns; }
   public function getConstraints() { return $this->constraints; }
-};
-
-?>
+}

core/Driver/SQL/Query/Delete.class.php

@@ -2,10 +2,12 @@
 
 namespace Driver\SQL\Query;
 
+use Driver\SQL\Condition\CondOr;
+
 class Delete extends Query {
 
-  private $table;
-  private $conditions;
+  private string $table;
+  private array $conditions;
 
   public function __construct($sql, $table) {
     parent::__construct($sql);
@@ -14,7 +16,7 @@ class Delete extends Query {
   }
 
   public function where(...$conditions) {
-    $this->conditions = array_merge($this->conditions, $conditions);
+    $this->conditions[] = (count($conditions) === 1 ? $conditions : new CondOr($conditions));
     return $this;
   }
 
@@ -24,6 +26,4 @@ class Delete extends Query {
 
   public function getTable() { return $this->table; }
   public function getConditions() { return $this->conditions; }
-};
-
-?>
+}

core/Driver/SQL/Query/Insert.class.php

@@ -2,13 +2,15 @@
 
 namespace Driver\SQL\Query;
 
+use Driver\SQL\Strategy\Strategy;
+
 class Insert extends Query {
 
-  private $tableName;
-  private $columns;
-  private $rows;
-  private $onDuplicateKey;
-  private $returning;
+  private string $tableName;
+  private array $columns;
+  private array $rows;
+  private ?Strategy $onDuplicateKey;
+  private ?string $returning;
 
   public function __construct($sql, $name, $columns=array()) {
     parent::__construct($sql);
@@ -43,6 +45,4 @@ class Insert extends Query {
   public function getRows() { return $this->rows; }
   public function onDuplicateKey() { return $this->onDuplicateKey; }
   public function getReturning() { return $this->returning; }
-};
-
-?>
+}

core/Driver/SQL/Query/Query.class.php

@@ -2,16 +2,23 @@
 
 namespace Driver\SQL\Query;
 
+use Driver\SQL\SQL;
+
 abstract class Query {
 
-  protected $sql;
+  protected SQL $sql;
+  public bool $dump;
 
   public function __construct($sql) {
     $this->sql = $sql;
+    $this->dump = false;
+  }
+
+  public function dump() {
+    $this->dump = true;
+    return $this;
   }
 
   public abstract function execute();
 
-};
-
-?>
+}

core/Driver/SQL/Query/Select.class.php

@@ -2,16 +2,20 @@
 
 namespace Driver\SQL\Query;
 
+use Driver\SQL\Condition\CondOr;
+use Driver\SQL\Join;
+
 class Select extends Query {
 
-  private $columns;
-  private $tables;
-  private $conditions;
-  private $joins;
-  private $orderColumns;
-  private $sortAscending;
-  private $limit;
-  private $offset;
+  private array $columns;
+  private array $tables;
+  private array $conditions;
+  private array $joins;
+  private array $orderColumns;
+  private array $groupColumns;
+  private bool $sortAscending;
+  private int $limit;
+  private int $offset;
 
   public function __construct($sql, ...$columns) {
     parent::__construct($sql);
@@ -20,6 +24,7 @@ class Select extends Query {
     $this->conditions = array();
     $this->joins = array();
     $this->orderColumns = array();
+    $this->groupColumns = array();
     $this->limit = 0;
     $this->offset = 0;
     $this->sortAscending = true;
@@ -31,17 +36,22 @@ class Select extends Query {
   }
 
   public function where(...$conditions) {
-    $this->conditions = array_merge($this->conditions, $conditions);
+    $this->conditions[] = (count($conditions) === 1 ? $conditions : new CondOr($conditions));
     return $this;
   }
 
   public function innerJoin($table, $columnA, $columnB) {
-    $this->joins[] = new \Driver\SQL\Join("INNER", $table, $columnA, $columnB);
+    $this->joins[] = new Join("INNER", $table, $columnA, $columnB);
     return $this;
   }
 
   public function leftJoin($table, $columnA, $columnB) {
-    $this->joins[] = new \Driver\SQL\Join("LEFT", $table, $columnA, $columnB);
+    $this->joins[] = new Join("LEFT", $table, $columnA, $columnB);
+    return $this;
+  }
+
+  public function groupBy(...$columns) {
+    $this->groupColumns = $columns;
     return $this;
   }
 
@@ -51,12 +61,12 @@ class Select extends Query {
   }
 
   public function ascending() {
-    $this->ascending = true;
+    $this->sortAscending = true;
     return $this;
   }
 
   public function descending() {
-    $this->ascending = false;
+    $this->sortAscending = false;
     return $this;
   }
 
@@ -78,11 +88,10 @@ class Select extends Query {
   public function getTables() { return $this->tables; }
   public function getConditions() { return $this->conditions; }
   public function getJoins() { return $this->joins; }
-  public function isOrderedAscending() { return $this->ascending; }
+  public function isOrderedAscending() { return $this->sortAscending; }
   public function getOrderBy() { return $this->orderColumns; }
   public function getLimit() { return $this->limit; }
   public function getOffset() { return $this->offset; }
+  public function getGroupBy() { return $this->groupColumns; }
 
-};
-
-?>
+}

core/Driver/SQL/Query/Truncate.class.php

@@ -4,7 +4,7 @@ namespace Driver\SQL\Query;
 
 class Truncate extends Query {
 
-  private $tableName;
+  private string $tableName;
 
   public function __construct($sql, $name) {
     parent::__construct($sql);
@@ -15,7 +15,5 @@ class Truncate extends Query {
     return $this->sql->executeTruncate($this);
   }
 
-  public function getTableName() { return $this->tableName; }
-};
-
-?>
+  public function getTable() { return $this->tableName; }
+}

core/Driver/SQL/Query/Update.class.php

@@ -2,11 +2,13 @@
 
 namespace Driver\SQL\Query;
 
+use Driver\SQL\Condition\CondOr;
+
 class Update extends Query {
 
-  private $values;
-  private $table;
-  private $conditions;
+  private array $values;
+  private string $table;
+  private array $conditions;
 
   public function __construct($sql, $table) {
     parent::__construct($sql);
@@ -16,7 +18,7 @@ class Update extends Query {
   }
 
   public function where(...$conditions) {
-    $this->conditions = array_merge($this->conditions, $conditions);
+    $this->conditions[] = (count($conditions) === 1 ? $conditions : new CondOr($conditions));
     return $this;
   }
 
@@ -32,6 +34,4 @@ class Update extends Query {
   public function getTable() { return $this->table; }
   public function getConditions() { return $this->conditions; }
   public function getValues() { return $this->values; }
-};
-
-?>
+}

core/Driver/SQL/SQL.class.php

@@ -2,16 +2,37 @@
 
 namespace Driver\SQL;
 
+use Driver\SQL\Column\Column;
+use Driver\SQL\Condition\Compare;
+use Driver\SQL\Condition\CondBool;
+use Driver\SQL\Condition\CondIn;
+use Driver\SQL\Condition\Condition;
+use Driver\SQL\Condition\CondKeyword;
+use Driver\SQL\Condition\CondNot;
+use Driver\SQL\Condition\CondOr;
+use Driver\SQL\Constraint\Constraint;
 use \Driver\SQL\Constraint\Unique;
 use \Driver\SQL\Constraint\PrimaryKey;
 use \Driver\SQL\Constraint\ForeignKey;
+use Driver\SQL\Query\CreateTable;
+use Driver\SQL\Query\Delete;
+use Driver\SQL\Query\Insert;
+use Driver\SQL\Query\Query;
+use Driver\SQL\Query\Select;
+use Driver\SQL\Query\Truncate;
+use Driver\SQL\Query\Update;
+use Driver\SQL\Strategy\CascadeStrategy;
+use Driver\SQL\Strategy\SetDefaultStrategy;
+use Driver\SQL\Strategy\SetNullStrategy;
+use Driver\SQL\Strategy\Strategy;
+use Objects\ConnectionData;
 
 abstract class SQL {
 
-  protected $lastError;
+  protected string $lastError;
   protected $connection;
-  protected $connectionData;
-  protected $lastInsertId;
+  protected ConnectionData $connectionData;
+  protected int $lastInsertId;
 
   public function __construct($connectionData) {
     $this->connection = NULL;
@@ -29,27 +50,27 @@ abstract class SQL {
   }
 
   public function createTable($tableName) {
-    return new Query\CreateTable($this, $tableName);
+    return new CreateTable($this, $tableName);
   }
 
   public function insert($tableName, $columns=array()) {
-    return new Query\Insert($this, $tableName, $columns);
+    return new Insert($this, $tableName, $columns);
   }
 
   public function select(...$columNames) {
-    return new Query\Select($this, $columNames);
+    return new Select($this, $columNames);
   }
 
   public function truncate($table) {
-    return new Query\Truncate($this, $table);
+    return new Truncate($this, $table);
   }
 
   public function delete($table) {
-    return new Query\Delete($this, $table);
+    return new Delete($this, $table);
   }
 
   public function update($table) {
-    return new Query\Update($this, $table);
+    return new Update($this, $table);
   }
 
   // ####################
@@ -65,7 +86,54 @@ abstract class SQL {
   public abstract function disconnect();
 
   // Querybuilder
-  public function executeCreateTable($createTable) {
+  protected function buildQuery(Query $query, array &$params) {
+    if ($query instanceof Select) {
+      $select = $query;
+      $columns = $this->columnName($select->getColumns());
+      $tables = $select->getTables();
+
+      if (!$tables) {
+        return $this->execute("SELECT $columns", $params, true);
+      }
+
+      $tables = $this->tableName($tables);
+      $where = $this->getWhereClause($select->getConditions(), $params);
+
+      $joinStr = "";
+      $joins = $select->getJoins();
+      if (!empty($joins)) {
+        foreach($joins as $join) {
+          $type = $join->getType();
+          $joinTable = $this->tableName($join->getTable());
+          $columnA = $this->columnName($join->getColumnA());
+          $columnB = $this->columnName($join->getColumnB());
+          $joinStr .= " $type JOIN $joinTable ON $columnA=$columnB";
+        }
+      }
+
+      $groupBy = "";
+      $groupColumns = $select->getGroupBy();
+      if (!empty($groupColumns)) {
+        $groupBy = " GROUP BY " . $this->columnName($groupColumns);
+      }
+
+      $orderBy = "";
+      $orderColumns = $select->getOrderBy();
+      if (!empty($orderColumns)) {
+        $orderBy = " ORDER BY " . $this->columnName($orderColumns);
+        $orderBy .= ($select->isOrderedAscending() ? " ASC" : " DESC");
+      }
+
+      $limit = ($select->getLimit() > 0 ? (" LIMIT " . $select->getLimit()) : "");
+      $offset = ($select->getOffset() > 0 ? (" OFFSET " . $select->getOffset()) : "");
+      return "SELECT $columns FROM $tables$joinStr$where$groupBy$orderBy$limit$offset";
+    } else {
+      $this->lastError = "buildQuery() not implemented for type: " . get_class($query);
+      return FALSE;
+    }
+  }
+
+  public function executeCreateTable(CreateTable $createTable) {
     $tableName = $this->tableName($createTable->getTableName());
     $ifNotExists = $createTable->ifNotExists() ? " IF NOT EXISTS": "";
 
@@ -89,73 +157,94 @@ abstract class SQL {
     return $this->execute($query);
   }
 
-  // TODO pull this function up
-  public abstract function executeInsert($query);
+  public function executeInsert(Insert $insert) {
 
-  public function executeSelect($select) {
+    $tableName = $this->tableName($insert->getTableName());
+    $columns = $insert->getColumns();
+    $rows = $insert->getRows();
 
-    $columns = $this->columnName($select->getColumns());
-    $tables = $select->getTables();
-    $params = array();
-
-    if (!$tables) {
-      return "SELECT $columns";
+    if (empty($rows)) {
+      $this->lastError = "No rows to insert given.";
+      return false;
     }
 
-    $tables = $this->tableName($tables);
-    $where = $this->getWhereClause($select->getConditions(), $params);
+    if (is_null($columns) || empty($columns)) {
+      $columnStr = "";
+    } else {
+      $columnStr = " (" . $this->columnName($columns) . ")";
+    }
 
-    $joinStr = "";
-    $joins = $select->getJoins();
-    if (!empty($joins)) {
-      foreach($joins as $join) {
-        $type = $join->getType();
-        $joinTable = $this->tableName($join->getTable());
-        $columnA = $this->columnName($join->getColumnA());
-        $columnB = $this->columnName($join->getColumnB());
-        $joinStr .= " $type JOIN $joinTable ON $columnA=$columnB";
+    $parameters = array();
+    $values = array();
+    foreach($rows as $row) {
+      $rowPlaceHolder = array();
+      foreach($row as $val) {
+        $rowPlaceHolder[] = $this->addValue($val, $parameters);
       }
+
+      $values[] = "(" . implode(",", $rowPlaceHolder) . ")";
     }
 
-    $orderBy = "";
-    $orderColumns = $select->getOrderBy();
-    if (!empty($orderColumns)) {
-      $orderBy = " ORDER BY " . $this->columnName($orderColumns);
-      $orderBy .= ($select->isOrderedAscending() ? " ASC" : " DESC");
+    $values = implode(",", $values);
+
+    $onDuplicateKey = $this->getOnDuplicateStrategy($insert->onDuplicateKey(), $parameters);
+    if ($onDuplicateKey === FALSE) {
+      return false;
     }
 
-    $limit = ($select->getLimit() > 0 ? (" LIMIT " . $select->getLimit()) : "");
-    $offset = ($select->getOffset() > 0 ? (" OFFSET " . $select->getOffset()) : "");
-    $query = "SELECT $columns FROM $tables$joinStr$where$orderBy$limit$offset";
+    $returningCol = $insert->getReturning();
+    $returning = $this->getReturning($returningCol);
+
+    $query = "INSERT INTO $tableName$columnStr VALUES $values$onDuplicateKey$returning";
+    if($insert->dump) { var_dump($query); var_dump($parameters); }
+    $res = $this->execute($query, $parameters, !empty($returning));
+    $success = ($res !== FALSE);
+
+    if($success && $returningCol) {
+      $this->fetchReturning($res, $returningCol);
+    }
+
+    return $success;
+  }
+
+  public function executeSelect(Select $select) {
+    $params = array();
+    $query = $this->buildQuery($select, $params);
+    if($select->dump) { var_dump($query); var_dump($params); }
     return $this->execute($query, $params, true);
   }
 
-  public function executeDelete($delete) {
+  public function executeDelete(Delete $delete) {
 
+    $params = array();
     $table = $this->tableName($delete->getTable());
     $where = $this->getWhereClause($delete->getConditions(), $params);
 
     $query = "DELETE FROM $table$where";
+    if($delete->dump) { var_dump($query); }
+    return $this->execute($query, $params);
+  }
+
+  public function executeTruncate(Truncate $truncate) {
+    $query = "TRUNCATE " . $this->tableName($truncate->getTable());
+    if ($truncate->dump) { var_dump($query); }
     return $this->execute($query);
   }
 
-  public function executeTruncate($truncate) {
-    return $this->execute("TRUNCATE " . $truncate->getTable());
-  }
-
-  public function executeUpdate($update) {
+  public function executeUpdate(Update $update) {
 
     $params = array();
     $table = $this->tableName($update->getTable());
 
     $valueStr = array();
     foreach($update->getValues() as $key => $val) {
-      $valueStr[] = "$key=" . $this->addValue($val, $params);
+      $valueStr[] =  $this->columnName($key) . "=" . $this->addValue($val, $params);
     }
     $valueStr = implode(",", $valueStr);
 
     $where = $this->getWhereClause($update->getConditions(), $params);
     $query = "UPDATE $table SET $valueStr$where";
+    if($update->dump) { var_dump($query); var_dump($params); }
     return $this->execute($query, $params);
   }
 
@@ -167,10 +256,8 @@ abstract class SQL {
     }
   }
 
-  protected abstract function getColumnDefinition($column);
-
-  public function getConstraintDefinition($constraint) {
-    $columnName = $this->columnName($constraint->getColumnName());
+  public function getConstraintDefinition(Constraint $constraint) {
+    $columnName = $this->columnName($constraint->getColumnNames());
     if ($constraint instanceof PrimaryKey) {
       return "PRIMARY KEY ($columnName)";
     } else if ($constraint instanceof Unique) {
@@ -190,10 +277,19 @@ abstract class SQL {
 
       return $code;
     } else {
-      $this->lastError = "Unsupported constraint type: " . get_class($strategy);
+      $this->lastError = "Unsupported constraint type: " . get_class($constraint);
+      return false;
     }
   }
 
+  protected function getReturning(?string $columns) {
+    return "";
+  }
+
+  protected abstract function getColumnDefinition(Column $column);
+  protected abstract function fetchReturning($res, string $returningCol);
+  protected abstract function getOnDuplicateStrategy(?Strategy $strategy, &$params);
+
   protected abstract function getValueDefinition($val);
   protected abstract function addValue($val, &$params);
 
@@ -201,17 +297,25 @@ abstract class SQL {
   protected abstract function columnName($col);
 
   // Special Keywords and functions
+  public function now() { return $this->currentTimestamp(); }
   public abstract function currentTimestamp();
 
   public function count($col = NULL) {
     if (is_null($col)) {
       return new Keyword("COUNT(*) AS count");
     } else {
+      $countCol = strtolower(str_replace(".","_", $col)) .  "_count";
       $col = $this->columnName($col);
-      return new Keyword("COUNT($col) AS count");
+      return new Keyword("COUNT($col) AS $countCol");
     }
   }
 
+  public function sum($col) {
+    $sumCol = strtolower(str_replace(".","_", $col)) .  "_sum";
+    $col = $this->columnName($col);
+    return new Keyword("SUM($col) AS $sumCol");
+  }
+
   public function distinct($col) {
     $col = $this->columnName($col);
     return new Keyword("DISTINCT($col)");
@@ -221,29 +325,67 @@ abstract class SQL {
   protected abstract function execute($query, $values=NULL, $returnValues=false);
 
   protected function buildCondition($condition, &$params) {
-    if ($condition instanceof \Driver\SQL\Condition\CondOr) {
+
+    if ($condition instanceof CondOr) {
       $conditions = array();
       foreach($condition->getConditions() as $cond) {
         $conditions[] = $this->buildCondition($cond, $params);
       }
       return "(" . implode(" OR ", $conditions) . ")";
-    } else if ($condition instanceof \Driver\SQL\Condition\Compare) {
+    } else if ($condition instanceof Compare) {
       $column = $this->columnName($condition->getColumn());
       $value = $condition->getValue();
       $operator = $condition->getOperator();
       return $column . $operator . $this->addValue($value, $params);
-    } else if ($condition instanceof \Driver\SQL\Condition\CondBool) {
+    } else if ($condition instanceof CondBool) {
       return $this->columnName($condition->getValue());
     } else if (is_array($condition)) {
-      if (count($condition) == 1) {
+      if (count($condition) === 1) {
         return $this->buildCondition($condition[0], $params);
       } else {
         $conditions = array();
-        foreach($condition as $cond) {
+        foreach ($condition as $cond) {
           $conditions[] = $this->buildCondition($cond, $params);
         }
         return implode(" AND ", $conditions);
       }
+    } else if($condition instanceof CondIn) {
+
+      $expression = $condition->getExpression();
+      if (is_array($expression)) {
+        $values = array();
+        foreach ($expression as $value) {
+          $values[] = $this->addValue($value, $params);
+        }
+
+        $values = implode(",", $values);
+      } else if($expression instanceof Select) {
+        $values = $this->buildQuery($expression, $params);
+      } else {
+        $this->lastError = "Unsupported in-expression value: " . get_class($condition);
+        return false;
+      }
+
+      return $this->columnName($condition->getColumn()) . " IN ($values)";
+    } else if($condition instanceof CondKeyword) {
+      $left = $condition->getLeftExp();
+      $right = $condition->getRightExp();
+      $keyword = $condition->getKeyword();
+      $left = ($left instanceof Column) ? $this->columnName($left->getName()) : $this->addValue($left, $params);
+      $right = ($right instanceof Column) ? $this->columnName($right->getName()) : $this->addValue($right, $params);
+      return "$left $keyword $right ";
+    } else if($condition instanceof CondNot) {
+      $expression = $condition->getExpression();
+      if ($expression instanceof Condition) {
+        $expression = $this->buildCondition($expression, $params);
+      } else {
+        $expression = $this->columnName($expression);
+      }
+
+      return "NOT $expression";
+    } else {
+      $this->lastError = "Unsupported condition type: " . get_class($condition);
+      return false;
     }
   }
 
@@ -260,7 +402,7 @@ abstract class SQL {
     $this->connection = NULL;
   }
 
-  public static function createConnection($connectionData) {
+  public static function createConnection(ConnectionData $connectionData) {
     $type = $connectionData->getProperty("type");
     if ($type === "mysql") {
       $sql = new MySQL($connectionData);
@@ -279,6 +421,10 @@ abstract class SQL {
 
     return $sql;
   }
-}
 
-?>
+  public abstract function getStatus();
+
+  public function parseBool($val) : bool {
+    return in_array($val, array(true, 1, '1', 't', 'true', 'TRUE'), true);
+  }
+}

core/Driver/SQL/Strategy/CascadeStrategy.class.php

@@ -7,6 +7,4 @@ class CascadeStrategy extends Strategy {
   public function __construct() {
   }
 
-};
-
-?>
+}

core/Driver/SQL/Strategy/SetDefaultStrategy.class.php

@@ -7,6 +7,4 @@ class SetDefaultStrategy extends Strategy {
   public function __construct() {
   }
 
-};
-
-?>
+}

core/Driver/SQL/Strategy/SetNullStrategy.class.php

@@ -7,6 +7,4 @@ class SetNullStrategy extends Strategy {
   public function __construct() {
   }
 
-};
-
-?>
+}

core/Driver/SQL/Strategy/Strategy.class.php

@@ -4,6 +4,4 @@ namespace Driver\SQL\Strategy;
 
 abstract class Strategy {
 
-};
-
-?>
+}

core/Driver/SQL/Strategy/UpdateStrategy.class.php

@@ -4,13 +4,17 @@ namespace Driver\SQL\Strategy;
 
 class UpdateStrategy extends Strategy {
 
-  private $values;
+  private array $values;
+  private array $conflictingColumns;
 
-  public function __construct($values) {
+  public function __construct(array $conflictingColumns, array $values) {
+    $this->conflictingColumns = $conflictingColumns;
     $this->values = $values;
   }
 
-  public function getValues() { return $this->values; }
-};
+  public function getConflictingColumns() {
+    return $this->conflictingColumns;
+  }
 
-?>
+  public function getValues() { return $this->values; }
+}

core/Elements/Body.class.php

@@ -2,9 +2,8 @@
 
 namespace Elements;
 
-abstract class Body extends \View {
+abstract class Body extends View {
   public function __construct($document) {
     parent::__construct($document);
   }
-};
-?>
+}

core/Elements/Document.class.php

@@ -2,18 +2,22 @@
 
 namespace Elements;
 
+use Objects\User;
+
 abstract class Document {
 
-  protected $head;
-  protected $body;
-  protected $user;
-  protected $databaseRequired;
+  protected Head $head;
+  protected Body $body;
+  protected User $user;
+  protected bool $databaseRequired;
+  private ?string $activeView;
 
-  public function __construct($user, $headClass, $bodyClass) {
+  public function __construct(User $user, $headClass, $bodyClass, ?string $view = NULL) {
     $this->head = new $headClass($this);
     $this->body = new $bodyClass($this);
     $this->user = $user;
     $this->databaseRequired = true;
+    $this->activeView = $view;
   }
 
   public function getHead() { return $this->head; }
@@ -21,36 +25,14 @@ abstract class Document {
   public function getSQL()  { return $this->user->getSQL(); }
   public function getUser() { return $this->user; }
 
-  protected function sendHeaders() {
-    header("X-Frame-Options: DENY");
-  }
+  public function getView() : ?View {
 
-  public static function createSearchableDocument($documentClass, $user) {
-    return new $documentClass($user);
-  }
-
-  public static function createDocument($class) {
-    // TODO: check instance, configuration, ..
-
-    require_once realpath($_SERVER['DOCUMENT_ROOT']) . '/php/sql.php';
-    // require_once realpath($_SERVER['DOCUMENT_ROOT']) . '/php/conf/config.php';
-    // require_once realpath($_SERVER['DOCUMENT_ROOT']) . "/php/pages/$file.php";
-    require_once realpath($_SERVER['DOCUMENT_ROOT']) . '/php/api/objects/User.php';
-
-    $connectionData = getSqlData($database);
-    $sql = connectSQL($connectionData);
-    if(!$sql->isConnected()) {
-      http_response_code(500);
-      die('Internal Database error');
+    $file = getClassPath($this->activeView);
+    if(!file_exists($file) || !is_subclass_of($this->activeView, View::class)) {
+      return null;
     }
 
-    $user = new CUser($sql);
-    $document = new $class($user);
-    $code = $document->getCode();
-
-    $document->sendHeaders();
-    $user->sendCookies();
-    die($code);
+    return new $this->activeView($this);
   }
 
   function getCode() {
@@ -66,15 +48,14 @@ abstract class Document {
 
     $body = $this->body->getCode();
     $head = $this->head->getCode();
+    $lang = $this->user->getLanguage()->getShortCode();
 
     $html = "<!DOCTYPE html>";
-    $html .= "<html>";
+    $html .= "<html lang=\"$lang\">";
     $html .= $head;
     $html .= $body;
     $html .= "</html>";
     return $html;
   }
 
-};
-
-?>
+}

core/Elements/Head.class.php

@@ -2,19 +2,20 @@
 
 namespace Elements;
 
-abstract class Head extends \View {
+abstract class Head extends View {
 
-  protected $sources;
-  protected $title;
-  protected $metas;
-  protected $rawFields;
-  protected $keywords;
-  protected $description;
-  protected $baseUrl;
+  protected array $sources;
+  protected string $title;
+  protected array $metas;
+  protected array $rawFields;
+  protected array $keywords;
+  protected string $description;
+  protected string $baseUrl;
 
   function __construct($document) {
     parent::__construct($document);
     $this->sources = array();
+    $this->searchable = false;
     $this->metas = $this->initMetas();
     $this->rawFields = $this->initRawFields();
     $this->title = $this->initTitle();
@@ -45,7 +46,7 @@ abstract class Head extends \View {
   public function addKeywords($keywords) { array_merge($this->keywords, $keywords); }
   public function getTitle() { return $this->title; }
 
-  public function addCSS($href, $type = Link::MIME_TEXT_CSS)  { $this->sources[] = new Link("stylesheet", $href, $type); }
+  public function addCSS($href, $type = Link::MIME_TEXT_CSS)  { $this->sources[] = new Link(Link::STYLESHEET, $href, $type); }
   public function addStyle($style) { $this->sources[] = new Style($style); }
   public function addJS($url) { $this->sources[] = new Script(Script::MIME_TEXT_JAVASCRIPT, $url, ""); }
   public function addJSCode($code) { $this->sources[] = new Script(Script::MIME_TEXT_JAVASCRIPT, "", $code); }
@@ -54,19 +55,6 @@ abstract class Head extends \View {
     $this->addCSS(Link::FONTAWESOME);
   }
 
-  public function loadSyntaxHighlighting() {
-    $this->addJS(Script::HIGHLIGHT);
-    $this->addJSCode(Script::HIGHLIGHT_JS_LOADER);
-    $this->addCSS(Link::HIGHLIGHT);
-    $this->addCSS(Link::HIGHLIGHT_THEME);
-  }
-
-  public function loadJQueryTerminal($unixFormatting = true) {
-    $this->addJS(Script::JQUERY_TERMINAL);
-    if($unixFormatting) $this->addJS(Script::JQUERY_TERMINAL_UNIX);
-    $this->addCSS(Link::JQUERY_TERMINAL);
-  }
-
   public function loadGoogleRecaptcha($siteKey) {
     $this->addJS("https://www.google.com/recaptcha/api.js?render=$siteKey");
   }
@@ -80,11 +68,6 @@ abstract class Head extends \View {
     $this->addJS(Script::BOOTSTRAP);
   }
 
-  public function loadChartJS() {
-    $this->addJS(Script::MOMENT);
-    $this->addJS(Script::CHART);
-  }
-
   public function getCode() {
     $header = "<head>";
 
@@ -123,4 +106,3 @@ abstract class Head extends \View {
     return $header;
   }
 }
-?>

core/Elements/Link.class.php

@@ -2,41 +2,28 @@
 
 namespace Elements;
 
-class Link extends Source {
+class Link extends StaticView {
 
   const STYLESHEET    = "stylesheet";
   const MIME_TEXT_CSS = "text/css";
 
-  const FONTAWESOME               = '/css/fontawesome.min.css';
-  // const JQUERY_UI                 = '/css/jquery-ui.css';
-  // const JQUERY_TERMINAL           = '/css/jquery.terminal.min.css';
-  const BOOTSTRAP                 = '/css/bootstrap.min.css';
-  // const BOOTSTRAP_THEME           = '/css/bootstrap-theme.min.css';
-  // const BOOTSTRAP_DATEPICKER_CSS  = '/css/bootstrap-datepicker.standalone.min.css';
-  // const BOOTSTRAP_DATEPICKER3_CSS = '/css/bootstrap-datepicker.standalone.min.css';
-  // const HIGHLIGHT                 = '/css/highlight.css';
-  // const HIGHLIGHT_THEME           = '/css/theme.css';
-  const CORE                      = "/css/style.css";
-  const ADMIN                     = "/css/admin.css";
-  // const HOME                      = "/css/home.css";
-  // const REVEALJS                  = "/css/reveal.css";
-  // const REVEALJS_THEME_MOON       = "/css/reveal_moon.css";
-  // const REVEALJS_THEME_BLACK      = "/css/reveal_black.css";
+  const FONTAWESOME = "/css/fontawesome.min.css";
+  const BOOTSTRAP   = "/css/bootstrap.min.css";
+  const CORE        = "/css/style.css";
+  const ACCOUNT       = "/css/account.css";
 
-  private $type;
-  private $rel;
+  private string $type;
+  private string $rel;
+  private string $href;
 
   function __construct($rel, $href, $type = "") {
-    parent::__construct('link', $href);
+    $this->href = $href;
     $this->type = $type;
     $this->rel = $rel;
   }
 
   function getCode() {
     $type = (empty($this->type) ? "" : " type=\"$this->type\"");
-    $link = "<link rel=\"$this->rel\" href=\"$this->url\" $type/>";
-    return $link;
+    return "<link rel=\"$this->rel\" href=\"$this->href\"$type/>";
   }
 }
-
-?>

core/Elements/Script.class.php

@@ -2,52 +2,28 @@
 
 namespace Elements;
 
-class Script extends Source {
+class Script extends StaticView {
 
   const MIME_TEXT_JAVASCRIPT    = "text/javascript";
 
-  const CORE                    = "/js/script.js";
-  // const HOME                    = "/js/home.js";
-  const ADMIN                   = "/js/admin.js";
-  // const SORTTABLE               = "/js/sorttable.js";
-  const JQUERY                  = "/js/jquery.min.js";
-  // const JQUERY_UI               = "/js/jquery-ui.js";
-  // const JQUERY_MASKED_INPUT     = "/js/jquery.maskedinput.min.js";
-  // const JQUERY_CONTEXT_MENU     = "/js/jquery.contextmenu.min.js";
-  // const JQUERY_TERMINAL         = "/js/jquery.terminal.min.js";
-  // const JQUERY_TERMINAL_UNIX    = "/js/unix_formatting.js";
-  // const JSCOLOR                 = "/js/jscolor.min.js";
-  // const SYNTAX_HIGHLIGHTER      = "/js/syntaxhighlighter.js";
-  // const HIGHLIGHT               = "/js/highlight.pack.js";
-  // const GOOGLE_CHARTS           = "/js/loader.js";
-  const BOOTSTRAP               = "/js/bootstrap.min.js";
-  // const BOOTSTRAP_DATEPICKER_JS = "/js/bootstrap-datepicker.min.js";
-  // const POPPER                  = "/js/popper.min.js";
-  // const JSMPEG                  = "/js/jsmpeg.min.js";
-  // const MOMENT                  = "/js/moment.min.js";
-  // const CHART                   = "/js/chart.js";
-  // const REVEALJS                = "/js/reveal.js";
-  // const REVEALJS_PLUGIN_NOTES   = "/js/reveal_notes.js";
-  const INSTALL                 = "/js/install.js";
+  const CORE      = "/js/script.js";
+  const JQUERY    = "/js/jquery.min.js";
+  const INSTALL   = "/js/install.js";
+  const BOOTSTRAP = "/js/bootstrap.bundle.min.js";
+  const ACCOUNT   = "/js/account.js";
 
-  const HIGHLIGHT_JS_LOADER = "\$(document).ready(function(){\$('code').each(function(i, block) { hljs.highlightBlock(block); }); })";
-
-  private $type;
-  private $content;
+  private string $type;
+  private string $content;
+  private string $src;
 
   function __construct($type, $src, $content = "") {
-    parent::__construct('script', $src);
+    $this->src = $src;
     $this->type = $type;
     $this->content = $content;
   }
 
   function getCode() {
-    $src = (empty($this->url) ? "" : " src=\"$this->url\"");
-    $script = "<script type=\"$this->type\"$src>";
-    $script .= $this->content;
-    $script .= '</script>';
-    return $script;
+    $src = (empty($this->src) ? "" : " src=\"$this->src\"");
+      return "<script type=\"$this->type\"$src>$this->content</script>";
   }
-}
-
-?>
+}

core/Elements/SimpleBody.class.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace Elements;
+
+abstract class SimpleBody extends Body {
+  public function __construct($document) {
+    parent::__construct($document);
+  }
+
+  public function getCode() {
+    $content = $this->getContent();
+    return parent::getCode() . "<body>$content</body>";
+  }
+
+  protected abstract function getContent();
+}

core/Elements/Source.class.php

@@ -1,22 +0,0 @@
-<?php
-
-namespace Elements;
-
-class Source extends \View {
-
-  protected $sourceType;
-  protected $url;
-
-  public function __construct($sourceType, $url) {
-    $this->sourceType = $sourceType;
-    $this->url = $url;
-  }
-
-  public function getCode() {
-    return "<$sourceType />";
-  }
-
-  public function getUrl() { return $this->url; }
-}
-
-?>

core/Elements/StaticView.class.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Elements;
+
+abstract class StaticView {
+
+  public abstract function getCode();
+
+  public function __toString() {
+    return $this->getCode();
+  }
+
+}

core/Elements/Style.class.php

@@ -2,12 +2,11 @@
 
 namespace Elements;
 
-class Style extends Source {
+class Style extends StaticView {
 
-  private $style;
+  private string $style;
 
   function __construct($style) {
-    parent::__construct('style', '');
     $this->style = $style;
   }
 
@@ -15,5 +14,3 @@ class Style extends Source {
     return "<style>$this->style</style>";
   }
 }
-
-?>

core/Elements/View.class.php

@@ -0,0 +1,136 @@
+<?php
+
+namespace Elements;
+
+use External\PHPMailer\Exception;
+
+abstract class View extends StaticView {
+
+  private Document $document;
+  private bool $loadView;
+  protected bool $searchable;
+  protected string $reference;
+  protected string $title;
+  protected array $langModules;
+
+  public function __construct(Document $document, $loadView = true) {
+    $this->document = $document;
+    $this->searchable = false;
+    $this->reference = "";
+    $this->title = "Untitled View";
+    $this->langModules = array();
+    $this->loadView = $loadView;
+  }
+
+  public function getTitle() { return $this->title; }
+  public function getDocument() { return $this->document; }
+  public function isSearchable() { return $this->searchable; }
+  public function getReference() { return $this->reference; }
+
+  protected function load(string $viewClass) : string {
+    try {
+      $reflectionClass = new \ReflectionClass($viewClass);
+      if ($reflectionClass->isSubclassOf(View::class) && $reflectionClass->isInstantiable()) {
+        $view = $reflectionClass->newInstanceArgs(array($this->getDocument()));
+        $view->loadView();
+        return $view;
+      }
+    } catch(\ReflectionException $e) {
+      error_log($e->getMessage());
+    }
+
+    return "";
+  }
+
+  private function loadLanguageModules() {
+    $lang = $this->document->getUser()->getLanguage();
+    foreach($this->langModules as $langModule) {
+      $lang->loadModule($langModule);
+    }
+  }
+
+  // Virtual Methods
+  public function loadView() { }
+
+  public function getCode() {
+
+    // Load translations
+    $this->loadLanguageModules();
+
+    // Load Meta Data + Head (title, scripts, includes, ...)
+    if($this->loadView) {
+      $this->loadView();
+    }
+
+    return '';
+  }
+
+  // UI Functions
+  private function createList($items, $tag) {
+    if(count($items) === 0)
+      return "<$tag></$tag>";
+    else
+      return "<$tag><li>" . implode("</li><li>", $items) . "</li></$tag>";
+  }
+
+  public function createOrderedList($items=array()) {
+    return $this->createList($items, "ol");
+  }
+
+  public function createUnorderedList($items=array()) {
+    return $this->createList($items, "ul");
+  }
+
+  protected function createLink($link, $title=null) {
+    if(is_null($title)) $title=$link;
+    return "<a href=\"$link\">$title</a>";
+  }
+
+  protected function createExternalLink($link, $title=null) {
+    if(is_null($title)) $title=$link;
+    return "<a href=\"$link\" target=\"_blank\" class=\"external\">$title</a>";
+  }
+
+  protected function createIcon($icon, $type = "fas", $classes = "") {
+    $iconClass = "$type fa-$icon";
+
+    if($icon === "spinner" || $icon === "circle-notch")
+      $iconClass .= " fa-spin";
+
+    if($classes)
+      $iconClass .= " $classes";
+
+    return "<i class=\"$iconClass\" ></i>";
+  }
+
+  protected function createErrorText($text, $id="", $hidden=false) {
+    return $this->createStatusText("danger", $text, $id, $hidden);
+  }
+
+  protected function createWarningText($text, $id="", $hidden=false) {
+    return $this->createStatusText("warning", $text, $id, $hidden);
+  }
+
+  protected function createSuccessText($text, $id="", $hidden=false) {
+    return $this->createStatusText("success", $text, $id, $hidden);
+  }
+
+  protected function createSecondaryText($text, $id="", $hidden=false) {
+    return $this->createStatusText("secondary", $text, $id, $hidden);
+  }
+
+  protected function createInfoText($text, $id="", $hidden=false) {
+    return $this->createStatusText("info", $text, $id, $hidden);
+  }
+
+  protected function createStatusText($type, $text, $id="", $hidden=false) {
+    if(strlen($id) > 0) $id = " id=\"$id\"";
+    $hidden = ($hidden?" hidden" : "");
+    return "<div class=\"alert alert-$type$hidden\" role=\"alert\"$id>$text</div>";
+  }
+
+  protected function createBadge($type, $text) {
+    $text = htmlspecialchars($text);
+    return "<span class=\"badge badge-$type\">$text</span>";
+  }
+}

core/Objects/ApiObject.class.php

@@ -6,9 +6,6 @@ abstract class ApiObject implements \JsonSerializable {
 
   public abstract function jsonSerialize();
 
-  public function __construct() { }
   public function __toString() { return json_encode($this); }
 
 }
-
-?>

core/Objects/ConnectionData.class.php

@@ -4,11 +4,11 @@ namespace Objects;
 
 class ConnectionData {
 
-  private $host;
-  private $port;
-  private $login;
-  private $password;
-  private $properties;
+  private string $host;
+  private int $port;
+  private string $login;
+  private string $password;
+  private array $properties;
 
   public function __construct($host, $port, $login, $password) {
     $this->host = $host;
@@ -32,12 +32,11 @@ class ConnectionData {
     }
 
     $this->properties[$key] = $val;
+    return true;
   }
 
   public function getHost() { return $this->host; }
   public function getPort() { return $this->port; }
   public function getLogin() { return $this->login; }
   public function getPassword() { return $this->password; }
-}
-
-?>
+}

core/Objects/Language.class.php

@@ -2,16 +2,18 @@
 
 namespace Objects {
 
-  class Language extends ApiObject {
+    use Objects\lang\LanguageModule;
+
+    class Language extends ApiObject {
 
     const LANG_CODE_PATTERN = "/^[a-zA-Z]+_[a-zA-Z]+$/";
 
-    private $languageId;
-    private $langCode;
-    private $langName;
-    private $modules;
+    private int $languageId;
+    private string $langCode;
+    private string $langName;
+    private array $modules;
 
-    protected $entries;
+    protected array $entries;
 
     public function __construct($languageId, $langCode, $langName) {
       $this->languageId = $languageId;
@@ -29,7 +31,7 @@ namespace Objects {
     public function getEntries() { return $this->entries; }
     public function getModules() { return $this->modules; }
 
-    public function loadModule($module) {
+    public function loadModule(LanguageModule $module) {
       if(!is_object($module))
         $module = new $module;
 
@@ -100,7 +102,8 @@ namespace Objects {
 }
 
 namespace {
-  function L($key) {
+
+    function L($key) {
     if(!array_key_exists('LANGUAGE', $GLOBALS))
       return $key;
 
@@ -132,4 +135,3 @@ namespace {
     return $LANGUAGE->getShortCode();
   }
 }
-?>

core/Objects/Session.class.php

@@ -2,28 +2,34 @@
 
 namespace Objects;
 
+use DateTime;
 use \Driver\SQL\Condition\Compare;
+use Exception;
+use External\JWT;
 
 class Session extends ApiObject {
 
-  const DURATION = 120;
+  # in minutes
+  const DURATION = 60*24;
 
-  private $sessionId;
-  private $user;
-  private $expires;
-  private $ipAddress;
-  private $os;
-  private $browser;
-  private $stayLoggedIn;
+  private ?int $sessionId;
+  private User $user;
+  private int $expires;
+  private string $ipAddress;
+  private ?string $os;
+  private ?string $browser;
+  private bool $stayLoggedIn;
+  private string $csrfToken;
 
-  public function __construct($user, $sessionId) {
+  public function __construct(User $user, ?int $sessionId, ?string $csrfToken) {
     $this->user = $user;
     $this->sessionId = $sessionId;
     $this->stayLoggedIn = true;
+    $this->csrfToken = $csrfToken ?? generateRandomString(16);
   }
 
   public static function create($user, $stayLoggedIn) {
-    $session = new Session($user, null);
+    $session = new Session($user, null, null);
     if($session->insert($stayLoggedIn)) {
       return $session;
     }
@@ -38,7 +44,7 @@ class Session extends ApiObject {
       $userAgent = @get_browser($_SERVER['HTTP_USER_AGENT'], true);
       $this->os = $userAgent['platform'] ?? "Unknown";
       $this->browser = $userAgent['parent'] ?? "Unknown";
-    } catch(\Exception $ex) {
+    } catch(Exception $ex) {
       $this->os = "Unknown";
       $this->browser = "Unknown";
     }
@@ -56,13 +62,11 @@ class Session extends ApiObject {
 
   public function sendCookie() {
     $this->updateMetaData();
-    $jwt = $this->user->getConfiguration()->getJwt();
-    if($jwt) {
-      $token = array('userId' => $this->user->getId(), 'sessionId' => $this->sessionId);
-      $sessionCookie = \External\JWT::encode($token, $jwt->getKey());
-      $secure = strcmp(getProtocol(), "https") === 0;
-      setcookie('session', $sessionCookie, $this->getExpiresTime(), "/", "", $secure);
-    }
+    $settings = $this->user->getConfiguration()->getSettings();
+    $token = array('userId' => $this->user->getId(), 'sessionId' => $this->sessionId);
+    $sessionCookie = JWT::encode($token, $settings->getJwtSecret());
+    $secure = strcmp(getProtocol(), "https") === 0;
+    setcookie('session', $sessionCookie, $this->getExpiresTime(), "/", "", $secure);
   }
 
   public function getExpiresTime() {
@@ -81,6 +85,7 @@ class Session extends ApiObject {
       'ipAddress' => $this->ipAddress,
       'os' => $this->os,
       'browser' => $this->browser,
+      'csrf_token' => $this->csrfToken
     );
   }
 
@@ -88,19 +93,20 @@ class Session extends ApiObject {
     $this->updateMetaData();
     $sql = $this->user->getSQL();
 
-    $hours = Session::DURATION;
-    $columns = array("expires", "user_id", "ipAddress", "os", "browser", "data", "stay_logged_in");
+    $minutes = Session::DURATION;
+    $columns = array("expires", "user_id", "ipAddress", "os", "browser", "data", "stay_logged_in", "csrf_token");
 
     $success = $sql
       ->insert("Session", $columns)
       ->addRow(
-        (new \DateTime)->modify("+$hours hour"),
+        (new DateTime())->modify("+$minutes minute"),
         $this->user->getId(),
         $this->ipAddress,
         $this->os,
         $this->browser,
         json_encode($_SESSION),
-        $stayLoggedIn)
+        $stayLoggedIn,
+        $this->csrfToken)
       ->returning("uid")
       ->execute();
 
@@ -113,32 +119,31 @@ class Session extends ApiObject {
   }
 
   public function destroy() {
-    $success = $this->user->getSQL()->update("Session")
+    return $this->user->getSQL()->update("Session")
       ->set("active", false)
       ->where(new Compare("Session.uid", $this->sessionId))
       ->where(new Compare("Session.user_id", $this->user->getId()))
       ->execute();
-
-    return $success;
   }
 
   public function update() {
     $this->updateMetaData();
-    $hours = Session::DURATION;
+    $minutes = Session::DURATION;
 
     $sql = $this->user->getSQL();
-    $success = $sql->update("Session")
-      ->set("Session.expires", (new \DateTime)->modify("+$hours hour"))
+    return $sql->update("Session")
+      ->set("Session.expires", (new DateTime())->modify("+$minutes minute"))
       ->set("Session.ipAddress", $this->ipAddress)
       ->set("Session.os", $this->os)
       ->set("Session.browser", $this->browser)
       ->set("Session.data", json_encode($_SESSION))
+      ->set("Session.csrf_token", $this->csrfToken)
       ->where(new Compare("Session.uid", $this->sessionId))
       ->where(new Compare("Session.user_id", $this->user->getId()))
       ->execute();
+  }
 
-    return $success;
+  public function getCsrfToken(): string {
+    return $this->csrfToken;
   }
 }
-
-?>