Reorganised code layout

Separated class library and web interface code
Added a common config/database config to be referenced by all
subprojects

Fixed previous commit

lib/HandBrakeCluster/RequestParser.class.php

@@ -0,0 +1,97 @@
+<?php
+
+class HandBrakeCluster_RequestParser {
+
+    private $request_string;
+    private $page = array();
+    private $vars = array();
+
+    public function __construct($request_string) {
+        $this->request_string = $request_string;
+
+        $this->parse();
+    }
+
+    public function parse() {
+        if (!$this->request_string) {
+        	$this->page = array('home');
+            return;
+        }
+
+        $components = explode('/', $this->request_string);
+        if (!$components) {
+            return;
+        }
+
+        // Read through the components list looking for elements matching known directories and files
+        // to determine which page this request is for
+        $base_dir = 'templates';
+        while (true) {
+            if ($components && ! $components[0]) {
+                // Skip over any empty components before we find a page
+                array_shift($components);
+            }
+            
+            if ($components && is_dir($base_dir . '/' . $components[0])) {
+                $base_dir .= '/' . $components[0];
+                array_push($this->page, array_shift($components));
+            } elseif ($components && is_file($base_dir . '/' . $components[0] . '.tpl')) {
+                // We have found a valid page, so break the loop here,
+                // leaving the remaining components as key/value pairs
+                array_push($this->page, array_shift($components));
+                break;
+            } else {
+                // See if we've already seen a component and assumed it referred to a dir when a file of the same name exists
+                if ($this->page && is_file($base_dir . '.tpl')) {
+                    break;
+                } elseif ( ! $components && is_file($base_dir . '/index.tpl')) {
+                    // The last component in the path was a valid directory, and a directory index exists
+                    array_push($this->page, 'index');
+                    break; 
+                } else {
+                    // No valid page was found, so display an error page
+                    $this->page = array('404');
+                    return;
+                }
+            }
+        }
+
+        // The subsequent tokens are parameters for this page in key value pairs
+        while ($components) {
+            // If the url ended with a trailing slash, the last element will be null
+            $last_element = $components[count($components) - 1];
+            if ($last_element == "") {
+                array_pop($components);
+            }
+            
+            $this->vars[array_shift($components)] = $components ? array_shift($components) : true;
+        }
+    }
+
+    public function page() {
+        return join('/', $this->page);
+    }
+
+    public function exists($key) {
+        return isset($this->vars[$key]);
+    }
+
+    public function get($key, $default = null) {
+        if (isset($this->vars[$key])) {
+            return $this->vars[$key];
+        }
+        
+        if (is_string($default) && preg_match('/^HandBrakeCluster_Exception/', $default) && class_exists($default) && is_subclass_of($default, HandBrakeCluster_Exception)) {
+            throw new $default();
+        }
+
+        return $default;
+    }
+    
+    public function request_string() {
+        return $this->request_string;
+    }
+
+};
+
+?>