From 6f9af3659c9146a2ac1b08d70610bf96398ec073 Mon Sep 17 00:00:00 2001
From: Frederic Guillot <fred@kanboard.net>
Date: Tue, 22 Dec 2015 19:06:03 +0100
Subject: Added the possiblity to define custom routes from plugins

---
 app/Core/Http/Route.php | 188 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 188 insertions(+)
 create mode 100644 app/Core/Http/Route.php

(limited to 'app/Core/Http/Route.php')

diff --git a/app/Core/Http/Route.php b/app/Core/Http/Route.php
new file mode 100644
index 00000000..ed831467
--- /dev/null
+++ b/app/Core/Http/Route.php
@@ -0,0 +1,188 @@
+<?php
+
+namespace Kanboard\Core\Http;
+
+use RuntimeException;
+use Kanboard\Core\Base;
+
+/**
+ * Route Handler
+ *
+ * @package http
+ * @author  Frederic Guillot
+ */
+class Route extends Base
+{
+    /**
+     * Flag that enable the routing table
+     *
+     * @access private
+     * @var boolean
+     */
+    private $activated = false;
+
+    /**
+     * Store routes for path lookup
+     *
+     * @access private
+     * @var array
+     */
+    private $paths = array();
+
+    /**
+     * Store routes for url lookup
+     *
+     * @access private
+     * @var array
+     */
+    private $urls = array();
+
+    /**
+     * Enable routing table
+     *
+     * @access public
+     * @return Route
+     */
+    public function enable()
+    {
+        $this->activated = true;
+        return $this;
+    }
+
+    /**
+     * Add route
+     *
+     * @access public
+     * @param  string   $path
+     * @param  string   $controller
+     * @param  string   $action
+     * @param  string   $plugin
+     * @return Route
+     */
+    public function addRoute($path, $controller, $action, $plugin = '')
+    {
+        if ($this->activated) {
+            $path = ltrim($path, '/');
+            $items = explode('/', $path);
+            $params = $this->findParams($items);
+
+            $this->paths[] = array(
+                'items' => $items,
+                'count' => count($items),
+                'controller' => $controller,
+                'action' => $action,
+                'plugin' => $plugin,
+            );
+
+            $this->urls[$plugin][$controller][$action][] = array(
+                'path' => $path,
+                'params' => $params,
+                'count' => count($params),
+            );
+        }
+
+        return $this;
+    }
+
+    /**
+     * Find a route according to the given path
+     *
+     * @access public
+     * @param  string   $path
+     * @return array
+     */
+    public function findRoute($path)
+    {
+        $items = explode('/', ltrim($path, '/'));
+        $count = count($items);
+
+        foreach ($this->paths as $route) {
+            if ($count === $route['count']) {
+                $params = array();
+
+                for ($i = 0; $i < $count; $i++) {
+                    if ($route['items'][$i]{0} === ':') {
+                        $params[substr($route['items'][$i], 1)] = $items[$i];
+                    } elseif ($route['items'][$i] !== $items[$i]) {
+                        break;
+                    }
+                }
+
+                if ($i === $count) {
+                    $this->request->setParams($params);
+                    return array(
+                        'controller' => $route['controller'],
+                        'action' => $route['action'],
+                        'plugin' => $route['plugin'],
+                    );
+                }
+            }
+        }
+
+        return array(
+            'controller' => 'app',
+            'action' => 'index',
+            'plugin' => '',
+        );
+    }
+
+    /**
+     * Find route url
+     *
+     * @access public
+     * @param  string   $controller
+     * @param  string   $action
+     * @param  array    $params
+     * @param  string   $plugin
+     * @return string
+     */
+    public function findUrl($controller, $action, array $params = array(), $plugin = '')
+    {
+        if ($plugin === '' && isset($params['plugin'])) {
+            $plugin = $params['plugin'];
+            unset($params['plugin']);
+        }
+
+        if (! isset($this->urls[$plugin][$controller][$action])) {
+            return '';
+        }
+
+        foreach ($this->urls[$plugin][$controller][$action] as $route) {
+            if (array_diff_key($params, $route['params']) === array()) {
+                $url = $route['path'];
+                $i = 0;
+
+                foreach ($params as $variable => $value) {
+                    $url = str_replace(':'.$variable, $value, $url);
+                    $i++;
+                }
+
+                if ($i === $route['count']) {
+                    return $url;
+                }
+            }
+        }
+
+        return '';
+    }
+
+    /**
+     * Find url params
+     *
+     * @access public
+     * @param  array $items
+     * @return array
+     */
+    public function findParams(array $items)
+    {
+        $params = array();
+
+        foreach ($items as $item) {
+            if ($item !== '' && $item{0} === ':') {
+                $params[substr($item, 1)] = true;
+            }
+        }
+
+        return $params;
+    }
+}
-- 
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