index.php

   1 <?php
   2
   3 /**
   4  * @mainpage OMP API Reference
   5  *
   6  * Welcome to the OMP API Reference. This resource contains documentation
   7  * generated automatically from the OMP source code.
   8  *
   9  * The design of Open Monograph press is heavily structured for maintainability,
  10  * flexibility and robustness. For this reason it may seem complex when first
  11  * approached. Those familiar with Sun's Enterprise Java Beans technology or the
  12  * Model-View-Controller (MVC) pattern will note many similarities.
  13  *
  14  * As in a MVC structure, data storage and representation, user interface
  15  * presentation, and control are separated into different layers. The major
  16  * categories, roughly ordered from "front-end" to "back-end," follow:
  17  * - Smarty templates, which are responsible for assembling HTML pages to
  18  * display to users;
  19  * - Page classes, which receive requests from users' web browsers, delegate any
  20  * required processing to various other classes, and call up the appropriate
  21  * Smarty template to generate a response;
  22  * - Action classes, which are used by the Page classes to perform non-trivial
  23  * processing of user requests;
  24  * - Model classes, which implement PHP objects representing the system's
  25  * various entities, such as Users, Monographs, and Presses;
  26  * - Data Access Objects (DAOs), which generally provide (amongst others)
  27  * update, create, and delete functions for their associated Model classes, are
  28  * responsible for all database interaction;
  29  * - Support classes, which provide core functionalities, miscellaneous common
  30  *
  31  * As the system makes use of inheritance and has consistent class naming
  32  * conventionsl it is generally easy to tell what category a particular class falls into.
  33  * For example, a Data Access Object class always inherits from the DAO class, has a
  34  * Class name of the form [Something]%DAO, and has a filename of the form
  35  * [Something]%DAO.inc.php.
  36  *
  37  * To learn more about developing OMP, there are several additional resources that may be useful:
  38  * - The docs/README document
  39  * - The PKP support forum at http://pkp.sfu.ca/support/forum
  40  * - The technical reference (and other documents), available at http://pkp.sfu.ca/omp_documentation
  41  *
  42  * @file index.php
  43  *
  44  * Copyright (c) 2003-2008 John Willinsky
  45  * Distributed under the GNU GPL v2. For full terms see the file docs/COPYING.
  46  *
  47  * @ingroup index
  48  *
  49  * Front controller for OMP site. Loads required files and dispatches requests to the appropriate handler.
  50  */
  51
  52 ini_set('display_errors', '2');
  53 ERROR_REPORTING(E_ALL);
  54
  55 define('INDEX_FILE_LOCATION', __FILE__);
  56 /**
  57  * Handle a new request.
  58  */
  59 function handleRequest() {
  60         if (!Config::getVar('general', 'installed')) {
  61                 define('SESSION_DISABLE_INIT', 1);
  62                 if (pageRequiresInstall()) {
  63                         // Redirect to installer if application has not been installed
  64                         Request::redirect(null, 'install');
  65                 }
  66         }
  67
  68         // Determine the handler for this request
  69         $page = Request::getRequestedPage();
  70         $op = Request::getRequestedOp();
  71
  72         $sourceFile = sprintf('pages/%s/index.php', $page);
  73
  74         // If a hook has been registered to handle this page, give it the
  75         // opportunity to load required resources and set HANDLER_CLASS.
  76         if (!HookRegistry::call('LoadHandler', array(&$page, &$op, &$sourceFile))) {
  77                 if (file_exists($sourceFile) || file_exists('lib/pkp/'.$sourceFile)) require($sourceFile);
  78                 elseif (empty($page)) require('pages/index/index.php');
  79                 else PKPRequest::handle404();
  80         }
  81
  82         if (!defined('SESSION_DISABLE_INIT')) {
  83                 // Initialize session
  84                 $sessionManager =& SessionManager::getManager();
  85                 $session =& $sessionManager->getUserSession();
  86         }
  87
  88         $methods = array_map('strtolower', get_class_methods(HANDLER_CLASS));
  89
  90         if (in_array(strtolower($op), $methods)) {
  91                 // Call a specific operation
  92                 $HandlerClass = HANDLER_CLASS;
  93                 $handler = new $HandlerClass;
  94                 $handler->$op(Request::getRequestedArgs());
  95
  96         } elseif (empty($op)) {
  97                 // Call the selected handler's index operation
  98                 $HandlerClass = HANDLER_CLASS;
  99                 $handler = new $HandlerClass;
 100                 $handler->index(Request::getRequestedArgs());
 101         } else PKPRequest::handle404();
 102 }
 103
 104 // Initialize system and handle the current request
 105 require('includes/driver.inc.php');
 106 initSystem();
 107 handleRequest();
 108
 109 ?>