First draft for plugins system

24 files changed, 555 insertions, 236 deletions

diff --git a/app/Core/PluginBase.php b/app/Core/PluginBase.php
new file mode 100644
index 00000000..9c3d6e32
--- /dev/null
+++ b/app/Core/PluginBase.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace Core;
+
+/**
+ * Plugin Base class
+ *
+ * @package  core
+ * @author   Frederic Guillot
+ */
+abstract class PluginBase extends Base
+{
+    /**
+     * Method called for each request
+     *
+     * @abstract
+     * @access public
+     */
+    abstract public function initialize();
+
+    /**
+     * Returns all classes that needs to be stored in the DI container
+     *
+     * @access public
+     * @return array
+     */
+    public function getClasses()
+    {
+        return array();
+    }
+}
diff --git a/app/Core/PluginLoader.php b/app/Core/PluginLoader.php
new file mode 100644
index 00000000..6030ded4
--- /dev/null
+++ b/app/Core/PluginLoader.php
@@ -0,0 +1,144 @@
+<?php
+
+namespace Core;
+
+use DirectoryIterator;
+use PDOException;
+
+/**
+ * Plugin Loader
+ *
+ * @package  core
+ * @author   Frederic Guillot
+ */
+class PluginLoader extends Base
+{
+    /**
+     * Schema version table for plugins
+     *
+     * @var string
+     */
+    const TABLE_SCHEMA = 'plugin_schema_versions';
+
+    /**
+     * Plugin folder
+     *
+     * @var string
+     */
+    const PATH = __DIR__.'/../../plugins';
+
+    /**
+     * Scan plugin folder and load plugins
+     *
+     * @access public
+     */
+    public function scan()
+    {
+        if (file_exists(self::PATH)) {
+            $dir = new DirectoryIterator(self::PATH);
+
+            foreach ($dir as $fileinfo) {
+                if (! $fileinfo->isDot() && $fileinfo->isDir()) {
+                    $plugin = $fileinfo->getFilename();
+                    $this->loadSchema($plugin);
+                    $this->load($plugin);
+                }
+            }
+        }
+    }
+
+    /**
+     * Load plugin
+     *
+     * @access public
+     */
+    public function load($plugin)
+    {
+        $class = '\Plugin\\'.$plugin.'\\Plugin';
+        $instance = new $class($this->container);
+
+        Tool::buildDic($this->container, $instance->getClasses());
+
+        $instance->initialize();
+    }
+
+    /**
+     * Load plugin schema
+     *
+     * @access public
+     * @param  string  $plugin
+     */
+    public function loadSchema($plugin)
+    {
+        $filename = __DIR__.'/../../plugins/'.$plugin.'/Schema/'.ucfirst(DB_DRIVER).'.php';
+
+        if (file_exists($filename)) {
+            require($filename);
+            $this->migrateSchema($plugin);
+        }
+    }
+
+    /**
+     * Execute plugin schema migrations
+     *
+     * @access public
+     * @param  string  $plugin
+     */
+    public function migrateSchema($plugin)
+    {
+        $last_version = constant('\Plugin\\'.$plugin.'\Schema\VERSION');
+        $current_version = $this->getSchemaVersion($plugin);
+
+        try {
+
+            $this->db->startTransaction();
+            $this->db->getDriver()->disableForeignKeys();
+
+            for ($i = $current_version + 1; $i <= $last_version; $i++) {
+                $function_name = '\Plugin\\'.$plugin.'\Schema\version_'.$i;
+
+                if (function_exists($function_name)) {
+                    call_user_func($function_name, $this->db->getConnection());
+                }
+            }
+
+            $this->db->getDriver()->enableForeignKeys();
+            $this->db->closeTransaction();
+            $this->setSchemaVersion($plugin, $i - 1);
+        }
+        catch (PDOException $e) {
+            $this->db->cancelTransaction();
+            $this->db->getDriver()->enableForeignKeys();
+            die('Unable to migrate schema for the plugin: '.$plugin.' => '.$e->getMessage());
+        }
+    }
+
+    /**
+     * Get current plugin schema version
+     *
+     * @access public
+     * @param  string  $plugin
+     * @return integer
+     */
+    public function getSchemaVersion($plugin)
+    {
+        return (int) $this->db->table(self::TABLE_SCHEMA)->eq('plugin', strtolower($plugin))->findOneColumn('version');
+    }
+
+    /**
+     * Save last plugin schema version
+     *
+     * @access public
+     * @param  string   $plugin
+     * @param  integer  $version
+     * @return boolean
+     */
+    public function setSchemaVersion($plugin, $version)
+    {
+        $dictionary = array(
+            strtolower($plugin) => $version
+        );
+
+        return $this->db->getDriver()->upsert(self::TABLE_SCHEMA, 'plugin', 'version', $dictionary);
+    }
+}
diff --git a/app/Core/Router.php b/app/Core/Router.php
index 6e7576d6..36bbfd55 100644
--- a/app/Core/Router.php
+++ b/app/Core/Router.php
@@ -213,49 +213,17 @@ class Router extends Base
         if (! empty($_GET['controller']) && ! empty($_GET['action'])) {
             $controller = $this->sanitize($_GET['controller'], 'app');
             $action = $this->sanitize($_GET['action'], 'index');
+            $plugin = ! empty($_GET['plugin']) ? $this->sanitize($_GET['plugin'], '') : '';
         }
         else {
-            list($controller, $action) = $this->findRoute($this->getPath($uri, $query_string));
+            list($controller, $action) = $this->findRoute($this->getPath($uri, $query_string)); // TODO: add plugin for routes
+            $plugin = '';
         }
 
-        return $this->load(
-            __DIR__.'/../Controller/'.ucfirst($controller).'.php',
-            $controller,
-            '\Controller\\'.ucfirst($controller),
-            $action
-        );
-    }
-
-    /**
-     * Load a controller and execute the action
-     *
-     * @access private
-     * @param  string $filename
-     * @param  string $controller
-     * @param  string $class
-     * @param  string $method
-     * @return bool
-     */
-    private function load($filename, $controller, $class, $method)
-    {
-        if (file_exists($filename)) {
-
-            require $filename;
-
-            if (! method_exists($class, $method)) {
-                return false;
-            }
-
-            $this->action = $method;
-            $this->controller = $controller;
-
-            $instance = new $class($this->container);
-            $instance->beforeAction($controller, $method);
-            $instance->$method();
-
-            return true;
-        }
+        $class = empty($plugin) ? '\Controller\\'.ucfirst($controller) : '\Plugin\\'.ucfirst($plugin).'\Controller\\'.ucfirst($controller);
 
-        return false;
+        $instance = new $class($this->container);
+        $instance->beforeAction($controller, $action);
+        $instance->$action();
     }
 }
diff --git a/app/Core/Template.php b/app/Core/Template.php
index ba869ee6..b75f7da1 100644
--- a/app/Core/Template.php
+++ b/app/Core/Template.php
@@ -13,11 +13,12 @@ use LogicException;
 class Template extends Helper
 {
     /**
-     * Template path
+     * List of template overrides
      *
-     * @var string
+     * @access private
+     * @var array
      */
-    const PATH = 'app/Template/';
+    private $overrides = array();
 
     /**
      * Render a template
@@ -33,16 +34,10 @@ class Template extends Helper
      */
     public function render($__template_name, array $__template_args = array())
     {
-        $__template_file = self::PATH.$__template_name.'.php';
-
-        if (! file_exists($__template_file)) {
-            throw new LogicException('Unable to load the template: "'.$__template_name.'"');
-        }
-
         extract($__template_args);
 
         ob_start();
-        include $__template_file;
+        include $this->getTemplateFile($__template_name);
         return ob_get_clean();
     }
 
@@ -62,4 +57,41 @@ class Template extends Helper
             $template_args + array('content_for_layout' => $this->render($template_name, $template_args))
         );
     }
+
+    /**
+     * Define a new template override
+     *
+     * @access public
+     * @param  string  $original_template
+     * @param  string  $new_template
+     */
+    public function setTemplateOverride($original_template, $new_template)
+    {
+        $this->overrides[$original_template] = $new_template;
+    }
+
+    /**
+     * Find template filename
+     *
+     * Core template name: 'task/show'
+     * Plugin template name: 'myplugin:task/show'
+     *
+     * @access public
+     * @param  string  $template_name
+     * @return string
+     */
+    public function getTemplateFile($template_name)
+    {
+        $template_name = isset($this->overrides[$template_name]) ? $this->overrides[$template_name] : $template_name;
+
+        if (strpos($template_name, ':') !== false) {
+            list($plugin, $template) = explode(':', $template_name);
+            $path = __DIR__.'/../../plugins/'.ucfirst($plugin).'/Template/'.$template.'.php';
+        }
+        else {
+            $path = __DIR__.'/../Template/'.$template_name.'.php';
+        }
+
+        return $path;
+    }
 }
diff --git a/app/Core/Tool.php b/app/Core/Tool.php
index 84e42ba8..7939a80e 100644
--- a/app/Core/Tool.php
+++ b/app/Core/Tool.php
@@ -2,6 +2,8 @@
 
 namespace Core;
 
+use Pimple\Container;
+
 /**
  * Tool class
  *
@@ -23,7 +25,6 @@ class Tool
         $fp = fopen($filename, 'w');
 
         if (is_resource($fp)) {
-
             foreach ($rows as $fields) {
                 fputcsv($fp, $fields);
             }
@@ -51,4 +52,24 @@ class Tool
 
         return $identifier;
     }
+
+    /**
+     * Build dependency injection container from an array
+     *
+     * @static
+     * @access public
+     * @param  Container  $container
+     * @param  array      $namespaces
+     */
+    public static function buildDIC(Container $container, array $namespaces)
+    {
+        foreach ($namespaces as $namespace => $classes) {
+            foreach ($classes as $name) {
+                $class = '\\'.$namespace.'\\'.$name;
+                $container[lcfirst($name)] = function ($c) use ($class) {
+                    return new $class($c);
+                };
+            }
+        }
+    }
 }
diff --git a/app/Core/Translator.php b/app/Core/Translator.php
index e3d19692..e9aa1f3f 100644
--- a/app/Core/Translator.php
+++ b/app/Core/Translator.php
@@ -15,7 +15,7 @@ class Translator
      *
      * @var string
      */
-    const PATH = 'app/Locale/';
+    const PATH = 'app/Locale';
 
     /**
      * Locale
@@ -196,18 +196,27 @@ class Translator
      * @static
      * @access public
      * @param  string   $language   Locale code: fr_FR
+     * @param  string   $path       Locale folder
      */
-    public static function load($language)
+    public static function load($language, $path = self::PATH)
     {
         setlocale(LC_TIME, $language.'.UTF-8', $language);
 
-        $filename = self::PATH.$language.DIRECTORY_SEPARATOR.'translations.php';
+        $filename = $path.DIRECTORY_SEPARATOR.$language.DIRECTORY_SEPARATOR.'translations.php';
 
         if (file_exists($filename)) {
-            self::$locales = require $filename;
-        }
-        else {
-            self::$locales = array();
+            self::$locales = array_merge(self::$locales, require($filename));
         }
     }
+
+    /**
+     * Clear locales stored in memory
+     *
+     * @static
+     * @access public
+     */
+    public static function unload()
+    {
+        self::$locales = array();
+    }
 }
diff --git a/app/Helper/Hook.php b/app/Helper/Hook.php
new file mode 100644
index 00000000..77756757
--- /dev/null
+++ b/app/Helper/Hook.php
@@ -0,0 +1,49 @@
+<?php
+
+namespace Helper;
+
+/**
+ * Template Hook helpers
+ *
+ * @package helper
+ * @author  Frederic Guillot
+ */
+class Hook extends \Core\Base
+{
+    private $hooks = array();
+
+    /**
+     * Render all attached hooks
+     *
+     * @access public
+     * @param  string  $hook
+     * @param  array   $variables
+     * @return string
+     */
+    public function render($hook, array $variables = array())
+    {
+        $buffer = '';
+
+        foreach ($this->hooks as $name => $template) {
+            if ($hook === $name) {
+                $buffer .= $this->template->render($template, $variables);
+            }
+        }
+
+        return $buffer;
+    }
+
+    /**
+     * Attach a template to a hook
+     *
+     * @access public
+     * @param  string  $hook
+     * @param  string  $template
+     * @return \Helper\Hook
+     */
+    public function attach($hook, $template)
+    {
+        $this->hooks[$hook] = $template;
+        return $this;
+    }
+}
diff --git a/app/Model/Acl.php b/app/Model/Acl.php
index 8c28cb1a..6042bc29 100644
--- a/app/Model/Acl.php
+++ b/app/Model/Acl.php
@@ -95,6 +95,18 @@ class Acl extends Base
     );
 
     /**
+     * Extend ACL rules
+     *
+     * @access public
+     * @param string $acl_name
+     * @param aray   $rules
+     */
+    public function extend($acl_name, array $rules)
+    {
+        $this->$acl_name = array_merge($this->$acl_name, $rules);
+    }
+
+    /**
      * Return true if the specified controller/action match the given acl
      *
      * @access public
diff --git a/app/Schema/Mysql.php b/app/Schema/Mysql.php
index efdb159b..5a12bb3c 100644
--- a/app/Schema/Mysql.php
+++ b/app/Schema/Mysql.php
@@ -6,7 +6,18 @@ use PDO;
 use Core\Security;
 use Model\Link;
 
-const VERSION = 86;
+const VERSION = 87;
+
+function version_87($pdo)
+{
+    $pdo->exec("
+        CREATE TABLE plugin_schema_versions (
+            plugin VARCHAR(80) NOT NULL,
+            version INT NOT NULL DEFAULT 0,
+            PRIMARY KEY(plugin)
+        ) ENGINE=InnoDB CHARSET=utf8
+    ");
+}
 
 function version_86($pdo)
 {
diff --git a/app/Schema/Postgres.php b/app/Schema/Postgres.php
index a5d28dcf..ad460cc7 100644
--- a/app/Schema/Postgres.php
+++ b/app/Schema/Postgres.php
@@ -6,7 +6,17 @@ use PDO;
 use Core\Security;
 use Model\Link;
 
-const VERSION = 66;
+const VERSION = 67;
+
+function version_67($pdo)
+{
+    $pdo->exec("
+        CREATE TABLE plugin_schema_versions (
+            plugin VARCHAR(80) NOT NULL PRIMARY KEY,
+            version INTEGER NOT NULL DEFAULT 0
+        )
+    ");
+}
 
 function version_66($pdo)
 {
diff --git a/app/Schema/Sqlite.php b/app/Schema/Sqlite.php
index 8efa016c..16fe0649 100644
--- a/app/Schema/Sqlite.php
+++ b/app/Schema/Sqlite.php
@@ -6,7 +6,17 @@ use Core\Security;
 use PDO;
 use Model\Link;
 
-const VERSION = 82;
+const VERSION = 83;
+
+function version_83($pdo)
+{
+    $pdo->exec("
+        CREATE TABLE plugin_schema_versions (
+            plugin TEXT NOT NULL PRIMARY KEY,
+            version INTEGER NOT NULL DEFAULT 0
+        )
+    ");
+}
 
 function version_82($pdo)
 {
diff --git a/app/ServiceProvider/ClassProvider.php b/app/ServiceProvider/ClassProvider.php
index b570f5cf..53bddc1b 100644
--- a/app/ServiceProvider/ClassProvider.php
+++ b/app/ServiceProvider/ClassProvider.php
@@ -4,6 +4,7 @@ namespace ServiceProvider;
 
 use Core\Paginator;
 use Core\OAuth2;
+use Core\Tool;
 use Model\Config;
 use Model\Project;
 use Model\Webhook;
@@ -94,17 +95,7 @@ class ClassProvider implements ServiceProviderInterface
 
     public function register(Container $container)
     {
-        foreach ($this->classes as $namespace => $classes) {
-
-            foreach ($classes as $name) {
-
-                $class = '\\'.$namespace.'\\'.$name;
-
-                $container[lcfirst($name)] = function ($c) use ($class) {
-                    return new $class($c);
-                };
-            }
-        }
+        Tool::buildDIC($container, $this->classes);
 
         $container['paginator'] = $container->factory(function ($c) {
             return new Paginator($c);
diff --git a/app/Template/app/sidebar.php b/app/Template/app/sidebar.php
index 2d966009..f4a455f8 100644
--- a/app/Template/app/sidebar.php
+++ b/app/Template/app/sidebar.php
@@ -19,6 +19,7 @@
         <li <?= $this->app->getRouterAction() === 'activity' ? 'class="active"' : '' ?>>
             <?= $this->url->link(t('My activity stream'), 'app', 'activity', array('user_id' => $user['id'])) ?>
         </li>
+        <?= $this->hook->render('dashboard:sidebar') ?>
     </ul>
     <div class="sidebar-collapse"><a href="#" title="<?= t('Hide sidebar') ?>"><i class="fa fa-chevron-left"></i></a></div>
     <div class="sidebar-expand" style="display: none"><a href="#" title="<?= t('Expand sidebar') ?>"><i class="fa fa-chevron-right"></i></a></div>
diff --git a/app/Template/config/sidebar.php b/app/Template/config/sidebar.php
index 3617979a..083da283 100644
--- a/app/Template/config/sidebar.php
+++ b/app/Template/config/sidebar.php
@@ -34,6 +34,7 @@
         <li>
             <?= $this->url->link(t('Documentation'), 'doc', 'show') ?>
         </li>
+        <?= $this->hook->render('config:sidebar') ?>
     </ul>
     <div class="sidebar-collapse"><a href="#" title="<?= t('Hide sidebar') ?>"><i class="fa fa-chevron-left"></i></a></div>
     <div class="sidebar-expand" style="display: none"><a href="#" title="<?= t('Expand sidebar') ?>"><i class="fa fa-chevron-right"></i></a></div>
diff --git a/app/Template/export/sidebar.php b/app/Template/export/sidebar.php
index f204d29d..7e39a5af 100644
--- a/app/Template/export/sidebar.php
+++ b/app/Template/export/sidebar.php
@@ -13,6 +13,7 @@
         <li <?= $this->app->getRouterAction() === 'summary' ? 'class="active"' : '' ?>>
             <?= $this->url->link(t('Daily project summary'), 'export', 'summary', array('project_id' => $project['id'])) ?>
         </li>
+        <?= $this->hook->render('export:sidebar') ?>
     </ul>
     <div class="sidebar-collapse"><a href="#" title="<?= t('Hide sidebar') ?>"><i class="fa fa-chevron-left"></i></a></div>
     <div class="sidebar-expand" style="display: none"><a href="#" title="<?= t('Expand sidebar') ?>"><i class="fa fa-chevron-right"></i></a></div>
diff --git a/app/Template/header.php b/app/Template/header.php
new file mode 100644
index 00000000..0bcfdbbc
--- /dev/null
+++ b/app/Template/header.php
@@ -0,0 +1,33 @@
+<header>
+    <nav>
+        <h1><?= $this->url->link('K<span>B</span>', 'app', 'index', array(), false, 'logo', t('Dashboard')).' '.$this->e($title) ?>
+            <?php if (! empty($description)): ?>
+                <span class="tooltip" title='<?= $this->e($this->text->markdown($description)) ?>'>
+                    <i class="fa fa-info-circle"></i>
+                </span>
+            <?php endif ?>
+        </h1>
+        <ul>
+            <?php if (isset($board_selector) && ! empty($board_selector)): ?>
+            <li>
+                <select id="board-selector"
+                        class="chosen-select select-auto-redirect"
+                        tabindex="-1"
+                        data-notfound="<?= t('No results match:') ?>"
+                        data-placeholder="<?= t('Display another project') ?>"
+                        data-redirect-regex="PROJECT_ID"
+                        data-redirect-url="<?= $this->url->href('board', 'show', array('project_id' => 'PROJECT_ID')) ?>">
+                    <option value=""></option>
+                    <?php foreach($board_selector as $board_id => $board_name): ?>
+                        <option value="<?= $board_id ?>"><?= $this->e($board_name) ?></option>
+                    <?php endforeach ?>
+                </select>
+            </li>
+            <?php endif ?>
+            <li>
+                <?= $this->url->link(t('Logout'), 'auth', 'logout') ?>
+                <span class="username hide-tablet">(<?= $this->user->getProfileLink() ?>)</span>
+            </li>
+        </ul>
+    </nav>
+</header>
\ No newline at end of file
diff --git a/app/Template/layout.php b/app/Template/layout.php
index 60108175..934fb62c 100644
--- a/app/Template/layout.php
+++ b/app/Template/layout.php
@@ -28,6 +28,8 @@
         <link rel="apple-touch-icon" sizes="144x144" href="<?= $this->url->dir() ?>assets/img/touch-icon-ipad-retina.png">
 
         <title><?= isset($title) ? $this->e($title) : 'Kanboard' ?></title>
+
+        <?= $this->hook->render('layout:head') ?>
     </head>
     <body data-status-url="<?= $this->url->href('app', 'status') ?>"
           data-login-url="<?= $this->url->href('auth', 'login') ?>"
@@ -38,43 +40,17 @@
     <?php if (isset($no_layout) && $no_layout): ?>
         <?= $content_for_layout ?>
     <?php else: ?>
-        <header>
-            <nav>
-                <h1><?= $this->url->link('K<span>B</span>', 'app', 'index', array(), false, 'logo', t('Dashboard')).' '.$this->e($title) ?>
-                    <?php if (! empty($description)): ?>
-                        <span class="tooltip" title='<?= $this->e($this->text->markdown($description)) ?>'>
-                            <i class="fa fa-info-circle"></i>
-                        </span>
-                    <?php endif ?>
-                </h1>
-                <ul>
-                    <?php if (isset($board_selector) && ! empty($board_selector)): ?>
-                    <li>
-                        <select id="board-selector"
-                                class="chosen-select select-auto-redirect"
-                                tabindex="-1"
-                                data-notfound="<?= t('No results match:') ?>"
-                                data-placeholder="<?= t('Display another project') ?>"
-                                data-redirect-regex="PROJECT_ID"
-                                data-redirect-url="<?= $this->url->href('board', 'show', array('project_id' => 'PROJECT_ID')) ?>">
-                            <option value=""></option>
-                            <?php foreach($board_selector as $board_id => $board_name): ?>
-                                <option value="<?= $board_id ?>"><?= $this->e($board_name) ?></option>
-                            <?php endforeach ?>
-                        </select>
-                    </li>
-                    <?php endif ?>
-                    <li>
-                        <?= $this->url->link(t('Logout'), 'auth', 'logout') ?>
-                        <span class="username hide-tablet">(<?= $this->user->getProfileLink() ?>)</span>
-                    </li>
-                </ul>
-            </nav>
-        </header>
+        <?= $this->hook->render('layout:top') ?>
+        <?= $this->render('header', array(
+            'title' => $title,
+            'description' => isset($description) ? $description : '',
+            'board_selector' => $board_selector,
+        )) ?>
         <section class="page">
             <?= $this->app->flashMessage() ?>
             <?= $content_for_layout ?>
         </section>
+        <?= $this->hook->render('layout:bottom') ?>
      <?php endif ?>
     </body>
 </html>
diff --git a/app/Template/project/dropdown.php b/app/Template/project/dropdown.php
index 0a53cc05..c9563a4f 100644
--- a/app/Template/project/dropdown.php
+++ b/app/Template/project/dropdown.php
@@ -9,21 +9,23 @@
 </li>
 <?php endif ?>
 
+<?= $this->hook->render('project:dropdown', array('project' => $project)) ?>
+
 <?php if ($this->user->isProjectManagementAllowed($project['id'])): ?>
-<li>
-    <i class="fa fa-line-chart fa-fw"></i>
-    <?= $this->url->link(t('Analytics'), 'analytic', 'tasks', array('project_id' => $project['id'])) ?>
-</li>
-<li>
-    <i class="fa fa-pie-chart fa-fw"></i>
-    <?= $this->url->link(t('Budget'), 'budget', 'index', array('project_id' => $project['id'])) ?>
-</li>
-<li>
-    <i class="fa fa-download fa-fw"></i>
-    <?= $this->url->link(t('Exports'), 'export', 'tasks', array('project_id' => $project['id'])) ?>
-</li>
-<li>
-    <i class="fa fa-cog fa-fw"></i>
-    <?= $this->url->link(t('Settings'), 'project', 'show', array('project_id' => $project['id'])) ?>
-</li>
+    <li>
+        <i class="fa fa-line-chart fa-fw"></i>
+        <?= $this->url->link(t('Analytics'), 'analytic', 'tasks', array('project_id' => $project['id'])) ?>
+    </li>
+    <li>
+        <i class="fa fa-pie-chart fa-fw"></i>
+        <?= $this->url->link(t('Budget'), 'budget', 'index', array('project_id' => $project['id'])) ?>
+    </li>
+    <li>
+        <i class="fa fa-download fa-fw"></i>
+        <?= $this->url->link(t('Exports'), 'export', 'tasks', array('project_id' => $project['id'])) ?>
+    </li>
+    <li>
+        <i class="fa fa-cog fa-fw"></i>
+        <?= $this->url->link(t('Settings'), 'project', 'show', array('project_id' => $project['id'])) ?>
+    </li>
 <?php endif ?>
diff --git a/app/Template/project/sidebar.php b/app/Template/project/sidebar.php
index 7b5d976f..84bbb6b1 100644
--- a/app/Template/project/sidebar.php
+++ b/app/Template/project/sidebar.php
@@ -48,6 +48,8 @@
                 </li>
             <?php endif ?>
         <?php endif ?>
+
+        <?= $this->hook->render('project:sidebar') ?>
     </ul>
     <div class="sidebar-collapse"><a href="#" title="<?= t('Hide sidebar') ?>"><i class="fa fa-chevron-left"></i></a></div>
     <div class="sidebar-expand" style="display: none"><a href="#" title="<?= t('Expand sidebar') ?>"><i class="fa fa-chevron-right"></i></a></div>
diff --git a/app/Template/project_user/sidebar.php b/app/Template/project_user/sidebar.php
index 8cc3f41b..98219a87 100644
--- a/app/Template/project_user/sidebar.php
+++ b/app/Template/project_user/sidebar.php
@@ -24,5 +24,7 @@
         <li <?= $this->app->getRouterAction() === 'closed' ? 'class="active"' : '' ?>>
             <?= $this->url->link(t('Closed tasks'), 'projectuser', 'closed', $filter) ?>
         </li>
+
+        <?= $this->hook->render('project-user:sidebar') ?>
     </ul>
 </div>
\ No newline at end of file
diff --git a/app/Template/task/sidebar.php b/app/Template/task/sidebar.php
index 1f06ab8c..cf0e9f76 100644
--- a/app/Template/task/sidebar.php
+++ b/app/Template/task/sidebar.php
@@ -18,6 +18,8 @@
             <?= $this->url->link(t('Time tracking'), 'task', 'timetracking', array('task_id' => $task['id'], 'project_id' => $task['project_id'])) ?>
         </li>
         <?php endif ?>
+
+        <?= $this->hook->render('task:sidebar:information') ?>
     </ul>
     <h2><?= t('Actions') ?></h2>
     <ul>
@@ -66,6 +68,8 @@
             <?= $this->url->link(t('Remove'), 'task', 'remove', array('task_id' => $task['id'], 'project_id' => $task['project_id'])) ?>
         </li>
         <?php endif ?>
+
+        <?= $this->hook->render('task:sidebar:actions') ?>
     </ul>
     <div class="sidebar-collapse"><a href="#" title="<?= t('Hide sidebar') ?>"><i class="fa fa-chevron-left"></i></a></div>
     <div class="sidebar-expand" style="display: none"><a href="#" title="<?= t('Expand sidebar') ?>"><i class="fa fa-chevron-right"></i></a></div>
diff --git a/app/Template/user/sidebar.php b/app/Template/user/sidebar.php
index cd1c85c1..77612d0f 100644
--- a/app/Template/user/sidebar.php
+++ b/app/Template/user/sidebar.php
@@ -20,6 +20,8 @@
                 <?= $this->url->link(t('Persistent connections'), 'user', 'sessions', array('user_id' => $user['id'])) ?>
             </li>
         <?php endif ?>
+
+        <?= $this->hook->render('user:sidebar:information') ?>
     </ul>
 
     <h2><?= t('Actions') ?></h2>
@@ -68,6 +70,8 @@
             </li>
         <?php endif ?>
 
+        <?= $this->hook->render('user:sidebar:actions', array('user' => $user)) ?>
+
         <?php if ($this->user->isAdmin() && ! $this->user->isCurrentUser($user['id'])): ?>
             <li <?= $this->app->getRouterController() === 'user' && $this->app->getRouterAction() === 'remove' ? 'class="active"' : '' ?>>
                 <?= $this->url->link(t('Remove'), 'user', 'remove', array('user_id' => $user['id'])) ?>
diff --git a/app/common.php b/app/common.php
index 1f1c7273..ea38ab36 100644
--- a/app/common.php
+++ b/app/common.php
@@ -30,120 +30,8 @@ $container->register(new ServiceProvider\ClassProvider);
 $container->register(new ServiceProvider\EventDispatcherProvider);
 
 if (ENABLE_URL_REWRITE) {
-
-    // Dashboard
-    $container['router']->addRoute('dashboard', 'app', 'index');
-    $container['router']->addRoute('dashboard/:user_id', 'app', 'index', array('user_id'));
-    $container['router']->addRoute('dashboard/:user_id/projects', 'app', 'projects', array('user_id'));
-    $container['router']->addRoute('dashboard/:user_id/tasks', 'app', 'tasks', array('user_id'));
-    $container['router']->addRoute('dashboard/:user_id/subtasks', 'app', 'subtasks', array('user_id'));
-    $container['router']->addRoute('dashboard/:user_id/calendar', 'app', 'calendar', array('user_id'));
-    $container['router']->addRoute('dashboard/:user_id/activity', 'app', 'activity', array('user_id'));
-
-    // Search routes
-    $container['router']->addRoute('search', 'search', 'index');
-    $container['router']->addRoute('search/:search', 'search', 'index', array('search'));
-
-    // Project routes
-    $container['router']->addRoute('projects', 'project', 'index');
-    $container['router']->addRoute('project/create', 'project', 'create');
-    $container['router']->addRoute('project/create/:private', 'project', 'create', array('private'));
-    $container['router']->addRoute('project/:project_id', 'project', 'show', array('project_id'));
-    $container['router']->addRoute('p/:project_id', 'project', 'show', array('project_id'));
-    $container['router']->addRoute('project/:project_id/share', 'project', 'share', array('project_id'));
-    $container['router']->addRoute('project/:project_id/edit', 'project', 'edit', array('project_id'));
-    $container['router']->addRoute('project/:project_id/integration', 'project', 'integration', array('project_id'));
-    $container['router']->addRoute('project/:project_id/users', 'project', 'users', array('project_id'));
-    $container['router']->addRoute('project/:project_id/duplicate', 'project', 'duplicate', array('project_id'));
-    $container['router']->addRoute('project/:project_id/remove', 'project', 'remove', array('project_id'));
-    $container['router']->addRoute('project/:project_id/disable', 'project', 'disable', array('project_id'));
-    $container['router']->addRoute('project/:project_id/enable', 'project', 'enable', array('project_id'));
-
-    // Action routes
-    $container['router']->addRoute('project/:project_id/actions', 'action', 'index', array('project_id'));
-    $container['router']->addRoute('project/:project_id/action/:action_id/confirm', 'action', 'confirm', array('project_id', 'action_id'));
-
-    // Column routes
-    $container['router']->addRoute('project/:project_id/columns', 'column', 'index', array('project_id'));
-    $container['router']->addRoute('project/:project_id/column/:column_id/edit', 'column', 'edit', array('project_id', 'column_id'));
-    $container['router']->addRoute('project/:project_id/column/:column_id/confirm', 'column', 'confirm', array('project_id', 'column_id'));
-    $container['router']->addRoute('project/:project_id/column/:column_id/move/:direction', 'column', 'move', array('project_id', 'column_id', 'direction'));
-
-    // Swimlane routes
-    $container['router']->addRoute('project/:project_id/swimlanes', 'swimlane', 'index', array('project_id'));
-    $container['router']->addRoute('project/:project_id/swimlane/:swimlane_id/edit', 'swimlane', 'edit', array('project_id', 'swimlane_id'));
-    $container['router']->addRoute('project/:project_id/swimlane/:swimlane_id/confirm', 'swimlane', 'confirm', array('project_id', 'swimlane_id'));
-    $container['router']->addRoute('project/:project_id/swimlane/:swimlane_id/disable', 'swimlane', 'disable', array('project_id', 'swimlane_id'));
-    $container['router']->addRoute('project/:project_id/swimlane/:swimlane_id/enable', 'swimlane', 'enable', array('project_id', 'swimlane_id'));
-    $container['router']->addRoute('project/:project_id/swimlane/:swimlane_id/up', 'swimlane', 'moveup', array('project_id', 'swimlane_id'));
-    $container['router']->addRoute('project/:project_id/swimlane/:swimlane_id/down', 'swimlane', 'movedown', array('project_id', 'swimlane_id'));
-
-    // Category routes
-    $container['router']->addRoute('project/:project_id/categories', 'category', 'index', array('project_id'));
-    $container['router']->addRoute('project/:project_id/category/:category_id/edit', 'category', 'edit', array('project_id', 'category_id'));
-    $container['router']->addRoute('project/:project_id/category/:category_id/confirm', 'category', 'confirm', array('project_id', 'category_id'));
-
-    // Task routes
-    $container['router']->addRoute('project/:project_id/task/:task_id', 'task', 'show', array('project_id', 'task_id'));
-    $container['router']->addRoute('t/:task_id', 'task', 'show', array('task_id'));
-    $container['router']->addRoute('public/task/:task_id/:token', 'task', 'readonly', array('task_id', 'token'));
-
-    $container['router']->addRoute('project/:project_id/task/:task_id/activity', 'activity', 'task', array('project_id', 'task_id'));
-    $container['router']->addRoute('project/:project_id/task/:task_id/screenshot', 'file', 'screenshot', array('project_id', 'task_id'));
-    $container['router']->addRoute('project/:project_id/task/:task_id/upload', 'file', 'create', array('project_id', 'task_id'));
-    $container['router']->addRoute('project/:project_id/task/:task_id/comment', 'comment', 'create', array('project_id', 'task_id'));
-    $container['router']->addRoute('project/:project_id/task/:task_id/link', 'tasklink', 'create', array('project_id', 'task_id'));
-    $container['router']->addRoute('project/:project_id/task/:task_id/transitions', 'task', 'transitions', array('project_id', 'task_id'));
-    $container['router']->addRoute('project/:project_id/task/:task_id/analytics', 'task', 'analytics', array('project_id', 'task_id'));
-    $container['router']->addRoute('project/:project_id/task/:task_id/remove', 'task', 'remove', array('project_id', 'task_id'));
-
-    $container['router']->addRoute('project/:project_id/task/:task_id/edit', 'taskmodification', 'edit', array('project_id', 'task_id'));
-    $container['router']->addRoute('project/:project_id/task/:task_id/description', 'taskmodification', 'description', array('project_id', 'task_id'));
-    $container['router']->addRoute('project/:project_id/task/:task_id/recurrence', 'taskmodification', 'recurrence', array('project_id', 'task_id'));
-
-    $container['router']->addRoute('project/:project_id/task/:task_id/close', 'taskstatus', 'close', array('task_id', 'project_id'));
-    $container['router']->addRoute('project/:project_id/task/:task_id/open', 'taskstatus', 'open', array('task_id', 'project_id'));
-
-    $container['router']->addRoute('project/:project_id/task/:task_id/duplicate', 'taskduplication', 'duplicate', array('task_id', 'project_id'));
-    $container['router']->addRoute('project/:project_id/task/:task_id/copy', 'taskduplication', 'copy', array('task_id', 'project_id'));
-    $container['router']->addRoute('project/:project_id/task/:task_id/copy/:dst_project_id', 'taskduplication', 'copy', array('task_id', 'project_id', 'dst_project_id'));
-    $container['router']->addRoute('project/:project_id/task/:task_id/move', 'taskduplication', 'move', array('task_id', 'project_id'));
-    $container['router']->addRoute('project/:project_id/task/:task_id/move/:dst_project_id', 'taskduplication', 'move', array('task_id', 'project_id', 'dst_project_id'));
-
-    // Board routes
-    $container['router']->addRoute('board/:project_id', 'board', 'show', array('project_id'));
-    $container['router']->addRoute('b/:project_id', 'board', 'show', array('project_id'));
-    $container['router']->addRoute('public/board/:token', 'board', 'readonly', array('token'));
-
-    // Calendar routes
-    $container['router']->addRoute('calendar/:project_id', 'calendar', 'show', array('project_id'));
-    $container['router']->addRoute('c/:project_id', 'calendar', 'show', array('project_id'));
-
-    // Listing routes
-    $container['router']->addRoute('list/:project_id', 'listing', 'show', array('project_id'));
-    $container['router']->addRoute('l/:project_id', 'listing', 'show', array('project_id'));
-
-    // Gantt routes
-    $container['router']->addRoute('gantt/:project_id', 'gantt', 'project', array('project_id'));
-    $container['router']->addRoute('gantt/:project_id/sort/:sorting', 'gantt', 'project', array('project_id', 'sorting'));
-
-    // Subtask routes
-    $container['router']->addRoute('project/:project_id/task/:task_id/subtask/create', 'subtask', 'create', array('project_id', 'task_id'));
-    $container['router']->addRoute('project/:project_id/task/:task_id/subtask/:subtask_id/remove', 'subtask', 'confirm', array('project_id', 'task_id', 'subtask_id'));
-    $container['router']->addRoute('project/:project_id/task/:task_id/subtask/:subtask_id/edit', 'subtask', 'edit', array('project_id', 'task_id', 'subtask_id'));
-
-    // Feed routes
-    $container['router']->addRoute('feed/project/:token', 'feed', 'project', array('token'));
-    $container['router']->addRoute('feed/user/:token', 'feed', 'user', array('token'));
-
-    // Ical routes
-    $container['router']->addRoute('ical/project/:token', 'ical', 'project', array('token'));
-    $container['router']->addRoute('ical/user/:token', 'ical', 'user', array('token'));
-
-    // Auth routes
-    $container['router']->addRoute('oauth/google', 'oauth', 'google');
-    $container['router']->addRoute('oauth/github', 'oauth', 'github');
-    $container['router']->addRoute('oauth/gitlab', 'oauth', 'gitlab');
-    $container['router']->addRoute('login', 'auth', 'login');
-    $container['router']->addRoute('logout', 'auth', 'logout');
+    require __DIR__.'/routes.php';
 }
+
+$plugin = new Core\PluginLoader($container);
+$plugin->scan();
diff --git a/app/routes.php b/app/routes.php
new file mode 100644
index 00000000..159e8f6e
--- /dev/null
+++ b/app/routes.php
@@ -0,0 +1,117 @@
+<?php
+
+// Dashboard
+$container['router']->addRoute('dashboard', 'app', 'index');
+$container['router']->addRoute('dashboard/:user_id', 'app', 'index', array('user_id'));
+$container['router']->addRoute('dashboard/:user_id/projects', 'app', 'projects', array('user_id'));
+$container['router']->addRoute('dashboard/:user_id/tasks', 'app', 'tasks', array('user_id'));
+$container['router']->addRoute('dashboard/:user_id/subtasks', 'app', 'subtasks', array('user_id'));
+$container['router']->addRoute('dashboard/:user_id/calendar', 'app', 'calendar', array('user_id'));
+$container['router']->addRoute('dashboard/:user_id/activity', 'app', 'activity', array('user_id'));
+
+// Search routes
+$container['router']->addRoute('search', 'search', 'index');
+$container['router']->addRoute('search/:search', 'search', 'index', array('search'));
+
+// Project routes
+$container['router']->addRoute('projects', 'project', 'index');
+$container['router']->addRoute('project/create', 'project', 'create');
+$container['router']->addRoute('project/create/:private', 'project', 'create', array('private'));
+$container['router']->addRoute('project/:project_id', 'project', 'show', array('project_id'));
+$container['router']->addRoute('p/:project_id', 'project', 'show', array('project_id'));
+$container['router']->addRoute('project/:project_id/share', 'project', 'share', array('project_id'));
+$container['router']->addRoute('project/:project_id/edit', 'project', 'edit', array('project_id'));
+$container['router']->addRoute('project/:project_id/integration', 'project', 'integration', array('project_id'));
+$container['router']->addRoute('project/:project_id/users', 'project', 'users', array('project_id'));
+$container['router']->addRoute('project/:project_id/duplicate', 'project', 'duplicate', array('project_id'));
+$container['router']->addRoute('project/:project_id/remove', 'project', 'remove', array('project_id'));
+$container['router']->addRoute('project/:project_id/disable', 'project', 'disable', array('project_id'));
+$container['router']->addRoute('project/:project_id/enable', 'project', 'enable', array('project_id'));
+
+// Action routes
+$container['router']->addRoute('project/:project_id/actions', 'action', 'index', array('project_id'));
+$container['router']->addRoute('project/:project_id/action/:action_id/confirm', 'action', 'confirm', array('project_id', 'action_id'));
+
+// Column routes
+$container['router']->addRoute('project/:project_id/columns', 'column', 'index', array('project_id'));
+$container['router']->addRoute('project/:project_id/column/:column_id/edit', 'column', 'edit', array('project_id', 'column_id'));
+$container['router']->addRoute('project/:project_id/column/:column_id/confirm', 'column', 'confirm', array('project_id', 'column_id'));
+$container['router']->addRoute('project/:project_id/column/:column_id/move/:direction', 'column', 'move', array('project_id', 'column_id', 'direction'));
+
+// Swimlane routes
+$container['router']->addRoute('project/:project_id/swimlanes', 'swimlane', 'index', array('project_id'));
+$container['router']->addRoute('project/:project_id/swimlane/:swimlane_id/edit', 'swimlane', 'edit', array('project_id', 'swimlane_id'));
+$container['router']->addRoute('project/:project_id/swimlane/:swimlane_id/confirm', 'swimlane', 'confirm', array('project_id', 'swimlane_id'));
+$container['router']->addRoute('project/:project_id/swimlane/:swimlane_id/disable', 'swimlane', 'disable', array('project_id', 'swimlane_id'));
+$container['router']->addRoute('project/:project_id/swimlane/:swimlane_id/enable', 'swimlane', 'enable', array('project_id', 'swimlane_id'));
+$container['router']->addRoute('project/:project_id/swimlane/:swimlane_id/up', 'swimlane', 'moveup', array('project_id', 'swimlane_id'));
+$container['router']->addRoute('project/:project_id/swimlane/:swimlane_id/down', 'swimlane', 'movedown', array('project_id', 'swimlane_id'));
+
+// Category routes
+$container['router']->addRoute('project/:project_id/categories', 'category', 'index', array('project_id'));
+$container['router']->addRoute('project/:project_id/category/:category_id/edit', 'category', 'edit', array('project_id', 'category_id'));
+$container['router']->addRoute('project/:project_id/category/:category_id/confirm', 'category', 'confirm', array('project_id', 'category_id'));
+
+// Task routes
+$container['router']->addRoute('project/:project_id/task/:task_id', 'task', 'show', array('project_id', 'task_id'));
+$container['router']->addRoute('t/:task_id', 'task', 'show', array('task_id'));
+$container['router']->addRoute('public/task/:task_id/:token', 'task', 'readonly', array('task_id', 'token'));
+
+$container['router']->addRoute('project/:project_id/task/:task_id/activity', 'activity', 'task', array('project_id', 'task_id'));
+$container['router']->addRoute('project/:project_id/task/:task_id/screenshot', 'file', 'screenshot', array('project_id', 'task_id'));
+$container['router']->addRoute('project/:project_id/task/:task_id/upload', 'file', 'create', array('project_id', 'task_id'));
+$container['router']->addRoute('project/:project_id/task/:task_id/comment', 'comment', 'create', array('project_id', 'task_id'));
+$container['router']->addRoute('project/:project_id/task/:task_id/link', 'tasklink', 'create', array('project_id', 'task_id'));
+$container['router']->addRoute('project/:project_id/task/:task_id/transitions', 'task', 'transitions', array('project_id', 'task_id'));
+$container['router']->addRoute('project/:project_id/task/:task_id/analytics', 'task', 'analytics', array('project_id', 'task_id'));
+$container['router']->addRoute('project/:project_id/task/:task_id/remove', 'task', 'remove', array('project_id', 'task_id'));
+
+$container['router']->addRoute('project/:project_id/task/:task_id/edit', 'taskmodification', 'edit', array('project_id', 'task_id'));
+$container['router']->addRoute('project/:project_id/task/:task_id/description', 'taskmodification', 'description', array('project_id', 'task_id'));
+$container['router']->addRoute('project/:project_id/task/:task_id/recurrence', 'taskmodification', 'recurrence', array('project_id', 'task_id'));
+
+$container['router']->addRoute('project/:project_id/task/:task_id/close', 'taskstatus', 'close', array('task_id', 'project_id'));
+$container['router']->addRoute('project/:project_id/task/:task_id/open', 'taskstatus', 'open', array('task_id', 'project_id'));
+
+$container['router']->addRoute('project/:project_id/task/:task_id/duplicate', 'taskduplication', 'duplicate', array('task_id', 'project_id'));
+$container['router']->addRoute('project/:project_id/task/:task_id/copy', 'taskduplication', 'copy', array('task_id', 'project_id'));
+$container['router']->addRoute('project/:project_id/task/:task_id/copy/:dst_project_id', 'taskduplication', 'copy', array('task_id', 'project_id', 'dst_project_id'));
+$container['router']->addRoute('project/:project_id/task/:task_id/move', 'taskduplication', 'move', array('task_id', 'project_id'));
+$container['router']->addRoute('project/:project_id/task/:task_id/move/:dst_project_id', 'taskduplication', 'move', array('task_id', 'project_id', 'dst_project_id'));
+
+// Board routes
+$container['router']->addRoute('board/:project_id', 'board', 'show', array('project_id'));
+$container['router']->addRoute('b/:project_id', 'board', 'show', array('project_id'));
+$container['router']->addRoute('public/board/:token', 'board', 'readonly', array('token'));
+
+// Calendar routes
+$container['router']->addRoute('calendar/:project_id', 'calendar', 'show', array('project_id'));
+$container['router']->addRoute('c/:project_id', 'calendar', 'show', array('project_id'));
+
+// Listing routes
+$container['router']->addRoute('list/:project_id', 'listing', 'show', array('project_id'));
+$container['router']->addRoute('l/:project_id', 'listing', 'show', array('project_id'));
+
+// Gantt routes
+$container['router']->addRoute('gantt/:project_id', 'gantt', 'project', array('project_id'));
+$container['router']->addRoute('gantt/:project_id/sort/:sorting', 'gantt', 'project', array('project_id', 'sorting'));
+
+// Subtask routes
+$container['router']->addRoute('project/:project_id/task/:task_id/subtask/create', 'subtask', 'create', array('project_id', 'task_id'));
+$container['router']->addRoute('project/:project_id/task/:task_id/subtask/:subtask_id/remove', 'subtask', 'confirm', array('project_id', 'task_id', 'subtask_id'));
+$container['router']->addRoute('project/:project_id/task/:task_id/subtask/:subtask_id/edit', 'subtask', 'edit', array('project_id', 'task_id', 'subtask_id'));
+
+// Feed routes
+$container['router']->addRoute('feed/project/:token', 'feed', 'project', array('token'));
+$container['router']->addRoute('feed/user/:token', 'feed', 'user', array('token'));
+
+// Ical routes
+$container['router']->addRoute('ical/project/:token', 'ical', 'project', array('token'));
+$container['router']->addRoute('ical/user/:token', 'ical', 'user', array('token'));
+
+// Auth routes
+$container['router']->addRoute('oauth/google', 'oauth', 'google');
+$container['router']->addRoute('oauth/github', 'oauth', 'github');
+$container['router']->addRoute('oauth/gitlab', 'oauth', 'gitlab');
+$container['router']->addRoute('login', 'auth', 'login');
+$container['router']->addRoute('logout', 'auth', 'logout');