model/note.php

   1 <?php
   2
   3 class note extends model {
   4
   5   public $id;
   6   public $comments_enabled = false;
   7   public $failed_captcha;
   8   public $url;
   9   public $title;
  10   public $year_posted;
  11   public $month_posted;
  12   public $day_posted;
  13   public $text;
  14   public $number_of_comments;
  15
  16   public function __construct() {
  17     parent::__construct();
  18     if (isset($_GET['comments'])) {
  19       $this->comments_enabled = true;
  20     }
  21     $url = htmlspecialchars($_SERVER['REQUEST_URI']);
  22     if (isset($_GET['verify'])) {
  23       $url = substr($url, 0, (strlen($url)-6));
  24     }
  25     $this->url = $url;
  26     $sql = "SELECT title, date_posted, text, id
  27               FROM notes WHERE url = ?";
  28     $result = $this->query($sql, "s",
  29                               $_GET['note']);
  30     if ($result) {
  31       $entry = $result[0];
  32       $this->id = $entry["id"];
  33       $this->title = $entry["title"];
  34       $date_posted =  explode("-", $entry["date_posted"]);
  35       $this->year_posted = $date_posted[0];
  36       $this->month_posted = $date_posted[1];
  37       $datetime_posted = explode(' ', $date_posted[2]);
  38       $this->day_posted = $datetime_posted[0];
  39       $this->text = $entry["text"];
  40     } else {
  41       throw new notFound();
  42     }
  43     $sql = "SELECT COUNT(*) FROM comments
  44               WHERE note = $this->id";
  45     $result = $this->db->query($sql);
  46     $result = $result->fetch_array();
  47     $this->number_of_comments = $result[0];
  48     if (isset($_GET['verify'])) {
  49       $this->verify();
  50     }
  51   }
  52
  53   public function display() {
  54       require_once("view/note.php");
  55   }
  56
  57   public function verify() {
  58     if (!isset($_POST['captcha'])) {
  59       require_once('includes/recaptchalib.php');
  60       echo "<br>";
  61       $resp = recaptcha_check_answer ($this->recaptcha_privatekey,
  62                                       $_SERVER["REMOTE_ADDR"],
  63                                       $_POST["recaptcha_challenge_field"],
  64                                       $_POST["recaptcha_response_field"]);
  65       if (!$resp->is_valid) {
  66         $this->failed_captcha = true;
  67       }
  68     }
  69     if (isset($_POST['captcha']) || $resp->is_valid) {
  70       $sql = ("INSERT INTO comments (date_posted, author,
  71                   text, note)
  72                 VALUES(NOW(), ?, ?, ?)");
  73       $stmt = $this->db->prepare($sql);
  74       // Checks are needed here (no blank text,
  75       // and a default author needs to be set
  76       // for no-javascript users.
  77       $stmt->bind_param('sss',
  78                           $_POST['name'],
  79                           $_POST['text'],
  80                         $this->id);
  81       $stmt->execute();
  82     }
  83   }
  84
  85   public function display_comment_link() {
  86     if ($this->number_of_comments > 0) {
  87       $anchor_text = "comments($this->number_of_comments)/";
  88     } else {
  89       $anchor_text = "comment?";
  90     }
  91     if (substr($this->url, (strlen($this->url)-1), strlen($this->url)) == '/') {
  92       $url = $this->url . 'comments/';
  93     } else {
  94       $url = $this->url . '/comments/';
  95     }
  96     echo "<a id='comment_link' href='$url'>$anchor_text</a>";
  97   }
  98
  99   public function display_comments() {
 100     echo "<div id='comments'>";
 101     $sql= "SELECT date_posted, author, text
 102              FROM comments WHERE note = ?
 103              ORDER BY date_posted DESC";
 104     $result = $this->query($sql, 'd', $this->id);
 105     foreach ($result as $row => $entry) {
 106       $date_posted = $entry['date_posted'];
 107       $author = $entry['author'];
 108       $text = htmlspecialchars($entry['text']);
 109       $head = "<h3>" . htmlspecialchars($author) . "</h3>";
 110       echo "<div class='comment'>";
 111       echo $head;
 112       echo $text;
 113       echo "</div>";
 114       }
 115     echo "</div>";
 116   }
 117
 118   public function display_comment_form() {
 119     $publickey = $this->recaptcha_publickey;
 120     require_once("view/comment-form.php");
 121   }
 122 }
 123
 124 ?>