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/Page.class.php

@@ -0,0 +1,74 @@
+<?php
+
+class HandBrakeCluster_Page {
+
+    private $smarty;
+    private $request;
+
+    private $page;
+
+    public function __construct(Smarty $smarty, HandBrakeCluster_RequestParser $request) {
+        $this->smarty = $smarty;
+        $this->request = $request;
+        $this->page = $request->page();
+    }
+
+    public function page() {
+        return $this->page;
+    }
+
+    public function template_filename() {
+        return $this->page . '.tpl';
+    }
+
+    public function evaluate($template_variables = array()) {
+        $code_filename     = $this->page . '.php';
+        $template_filename = $this->template_filename();
+
+        try {
+            $this->render($template_filename, $code_filename, $template_variables);
+        } catch (HandBrakeCluster_Exception_AbortEntirePage $e) {
+            return false;
+        } catch (HandBrakeCluster_Exception_FileNotFound $e) {
+            $this->render('errors/404.tpl', 'errors/404.php');
+        } catch (HandBrakeCluster_Exception $e) {
+            $this->render('errors/unhandled-exception.tpl', 'errors/unhandled-exception.php', array(
+                'exception' => $e,
+            ));
+        } 
+        
+        return true;
+    }
+    
+    protected function render($template_filename, $code_filename = null, $template_variables = array()) {
+        if ( ! $this->smarty->template_exists($template_filename)) {
+            throw new HandBrakeCluster_Exception_FileNotFound($template_filename);
+        }
+        
+        // Copy all the template variables into the namespace for this function,
+        // so that they are readily available to the template
+        foreach ($template_variables as $__k => $__v) {
+            $$__k = $__v;
+        }
+        
+        // Include the template code file, which will do all the work for this page
+        $real_code_filename = 'pages/' . $code_filename;
+        if ($code_filename && file_exists($real_code_filename)) {
+            include $real_code_filename;
+        }
+        
+        // Now execute the template itself, which will render the results of the code file
+        $this->smarty->assign('page_content', $this->smarty->fetch($template_filename));
+    }
+    
+    public static function redirect($relative_url) {
+        $absolute_url = HandBrakeCluster_Main::instance()->absoluteUrl($relative_url);
+        
+        header("Location: $absolute_url");
+        
+        throw new HandBrakeCluster_Exception_AbortEntirePage();
+    }
+
+};
+
+?>