index.php

   1 <?php
   2 require('includes/header.php');
   3
   4 include('lib/db.php');
   5 include('lib/utils.php');
   6
   7 /**
   8  * [session_start start a unique session for the current browser client]
   9  */
  10 session_start();
  11
  12 $connection = new CustomDB($configs['host'], $configs['username'], $configs['password'], $configs['database']);
  13
  14 $page = filter_input(INPUT_GET, 'page', FILTER_SANITIZE_URL);
  15 $isPage = true;
  16 if (!isset($page)) {
  17     $isPage = false;
  18     $page = "";
  19 }
  20
  21 /**
  22  * form MUST have an hidden field named 'form' to enable proper routing
  23  */
  24 $form = filter_input(INPUT_POST, 'form', FILTER_SANITIZE_URL);
  25 $isForm = true;
  26 if (!isset($form)) {
  27     $isForm = false;
  28     $form = "";
  29 }
  30
  31 function get_action_type() {
  32     global $isPage, $isForm;
  33
  34     if ($isPage && !$isForm && is_get_request()) {
  35         return "page";
  36     } elseif ($isForm && !$isPage && is_post_request()) {
  37         return "form";
  38     } elseif (!$isPage && !$isForm && is_get_request()){
  39         return "empty";
  40     } else {
  41         return "unknown";
  42     }
  43 }
  44
  45 function get_url_action($action_type) {
  46     global $page, $form;
  47
  48     if ($action_type === "page") {
  49         return $page;
  50     } elseif ($action_type === "form") {
  51         return $form;
  52     } elseif ($action_type === "empty") {
  53         return "";
  54     } elseif ($action_type === "unknown") {
  55         die('Cannot get a valid action from URL parameters or form fields');
  56     }
  57 }
  58
  59 /**
  60  * [validate_url_action validate if the current page is a valid site actions]
  61  * @param  [string] $page [the viewed page name]
  62  * @return [string]       [the valid matching action or the default action
  63  *                         if the action name do not exist ]
  64  */
  65 function validate_url_action($action_name)
  66 {
  67     global $configs;
  68
  69     foreach ($configs['actions'] as $action) {
  70         if (strcmp($action_name, $action) === 0) {
  71             // The actions list can't have duplicated entries
  72             return $action;
  73         }
  74     }
  75     // Return the default action
  76     return $configs['actions'][0];
  77 }
  78
  79 function display_action($action_name, $action_type)
  80 {
  81     global $configs;
  82     $includes_rpath = 'includes';
  83
  84     $found_action = false;
  85     foreach ($configs['actions'] as $action) {
  86         if (strcmp($action_name, $action) === 0) {
  87             // HTTP GET case
  88             if ($action_type === "page" || $action_type === "empty") {
  89                 include($includes_rpath . "/" . $action . ".php");
  90             // HTTP POST case
  91             } elseif ($action_type === "form") {
  92                 include($includes_rpath . "/form" . $action . ".php");
  93             } else {
  94                 echo "Unknown error in action displaying <br>";
  95             }
  96             $found_action = true;
  97             break;
  98         }
  99     }
 100     if (!$found_action) {
 101         echo "Action to display do not exist <br>";
 102     }
 103 }
 104
 105 //password_hash('12345678', PASSWORD_DEFAULT);
 106
 107 $action_type = get_action_type();
 108 $url_action = get_url_action($action_type);
 109 $action = validate_url_action($url_action);
 110 display_action($action, $action_type);
 111
 112 $connection->close();
 113
 114 session_destroy();
 115
 116 require('includes/footer.html');
 117 ?>