From 6e42f3702b38f97a1a436d30310a0e6c4faa5145 Mon Sep 17 00:00:00 2001
From: Romain d'Alverny <rda@mageia.org>
Date: Mon, 12 Nov 2012 11:36:20 +0000
Subject: pinq is a new controller-based framework for www.m.o

---
 lib/pinq/Controller.php | 185 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 185 insertions(+)
 create mode 100644 lib/pinq/Controller.php

(limited to 'lib/pinq/Controller.php')

diff --git a/lib/pinq/Controller.php b/lib/pinq/Controller.php
new file mode 100644
index 000000000..8a204357c
--- /dev/null
+++ b/lib/pinq/Controller.php
@@ -0,0 +1,185 @@
+<?php
+/**
+ *
+ * PHP version 5.4
+ *
+ * @category Mageia
+ * @package  Mageia\Web\www\Pinq
+ * @author   rda <rda@mageia.org>
+ * @license  http://www.gnu.org/licenses/gpl-2.0.html GPL-2+
+ * @link     http://www.mageia.org/
+ *
+*/
+
+/**
+*/
+class Pinq_Controller
+{
+    /**
+     * @param string $dir     root application directory
+     * @param array  $server  $_SERVER array
+     *
+    */
+    public function __construct($dir, $server)
+    {
+        $this->_app_root = $dir;
+        $this->_server   = $server;
+    }
+
+    /**
+    */
+    public function init()
+    {
+        $this->uri = $this->_server['REQUEST_URI'];
+
+        if (strpos('?', $this->uri) !== false) {
+            $uri = explode('?', $this->uri);
+            $this->query = $uri[1];
+            $this->uri   = $uri[0];
+        }
+    }
+
+    /**
+     * @param array $routes
+     *
+     * @return boolean
+    */
+    public function run($routes = null)
+    {
+        // static, image files are expected to be served directly by the server.
+
+        // detect path language; if not set, redirect to best fallback language (English for now), end
+        $this->lang = $this->get_request_language($this->uri);
+        if (!$this->lang_is_managed($this->lang)) {
+            // TODO
+        }
+
+        // delegate to declared routes/apps
+        $re = '
+        /
+            \/(([a-zA-Z\-\_]{2,5})\/)?
+            (.*)
+        /x';
+
+        if (preg_match_all($re, $this->uri, $matches)) {
+            $this->_lang = $matches[2][0];
+            $this->_path = $matches[3][0];
+        }
+
+        if (is_array($routes) && count($routes) > 0) {
+            foreach ($routes as $r => $app) {
+                $re = '/' . $r . '/';
+                if (preg_match_all($re, $this->uri, $m)) {
+                    return $this->delegate_to($app);
+                }
+            }
+        }
+
+        // delegate to local script
+        // TODO look at local code at $uri, and decide if we can load it and decorate it.
+
+        // finally, act as we used to before
+        if ($this->fallback_to_previous_mode($this->uri, $this->lang)) {
+            return true;
+        }
+
+        // if nothing matched, well...
+        return $this->delegate_to('error', array('code' => '404'));
+    }
+
+    /**
+     * @param string $uri
+     *
+     * @return string
+    */
+    function get_request_language($uri)
+    {
+        $tu   = explode('/', $uri);
+        $lang = $tu[1];
+        $sl   = strlen($lang);
+        if ($this->lang_exists($lang)) {
+            return $lang;
+        }
+
+        return null;
+    }
+
+    /**
+    */
+    function lang_exists($lang)
+    {
+        // is it a valid language code? ll[-cc] or ll[_CC]?
+        return true;
+    }
+
+    /**
+    */
+    function lang_is_managed($lang)
+    {
+        // in managed languages array?
+        return true;
+    }
+
+    /**
+     * @param  string $app_name
+     *
+     * @return boolean
+    */
+    private function delegate_to($app_name, $options = null)
+    {
+        $app_cont = realpath(sprintf('%s/apps/%s/%s_app.php', $this->_app_root, $app_name, $app_name));
+        if (!file_exists($app_cont)) {
+            throw new Exception(sprintf('Expected "%s" app, found no definition file.', $app_name));
+        }
+
+        include $app_cont;
+        $a = new $app_name($this, $options);
+
+        return $a->run();
+    }
+
+    /**
+     * @return boolean true if fallback happened
+    */
+    function fallback_to_previous_mode($uri, $lang)
+    {
+        $alt_uri = sprintf(
+            '/%s/%s', 
+            'en',
+            substr($uri, strlen($lang) + 2)
+        );
+
+        $test_uris = array(
+/*
+            $uri,
+            $uri . 'index.php',
+            $uri . 'index.html',
+/**/
+            $alt_uri,
+            $alt_uri . 'index.php',
+            $alt_uri . 'index.html'
+        );
+
+        $found = false;
+
+        foreach ($test_uris as $inc_uri) {
+
+            $real_file = realpath($this->_app_root . $inc_uri);
+
+            if (file_exists($real_file) && !is_dir($real_file)) {
+
+                $found = true;
+                break;
+            }
+        }
+
+        if ($found) {
+            chdir(dirname($real_file));
+            require $real_file;
+            return true;
+        }
+
+        return false;
+    }
+
+}
-- 
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