reCAPTCHA image now loaded w/ AJAX
[dylansserver.git] / index.php
index 0f23b80..a0c48f2 100644 (file)
--- a/index.php
+++ b/index.php
@@ -3,25 +3,31 @@
 abstract class cms {
   private $config_file = '/etc/dylanstestserver.ini';
   protected $db;
+  protected $recaptcha_publickey;
+  protected $recaptcha_privatekey;
 
   public function __construct() {
-    $config = parse_ini_file($this->config_file);
+    $config = parse_ini_file($this->config_file, true);
     $this->db = new mysqli(
-         $config['domain'],
-         $config['user'],
-         $config['password'],
-      $config['database']);
+         $config[database]['domain'],
+         $config[database]['user'],
+         $config[database]['password'],
+      $config[database]['database']);
        if (mysqli_connect_errno()) {
          echo "Problem connecting to database: ";
          echo mysqli_connect_error();
          exit();
        }
+       $this->recaptcha_publickey = $config[recaptcha]['publickey'];
+       $this->recaptcha_privatekey = $config[recaptcha]['privatekey'];
        ob_start();
   }
 
   public static function determine_type() {
     if (isset($_GET['page']) && is_numeric($_GET['page'])) {
          return 'page';
+       } else if (isset($_GET['year'])) {
+         return 'archive';
        } else if (isset($_GET['note'])) {
          return 'note';
        } else if ($_SERVER['REQUEST_URI'] == '/') {
@@ -49,7 +55,7 @@ abstract class cms {
        call_user_func_array("mysqli_stmt_bind_result", $fields);
        $i = 0;
        while ($statement->fetch()) {
-         foreach ($row as $key1=>$value1) $return[$i][$key1] = $value1;
+         foreach ($row as $key=>$value) $return[$i][$key] = $value;
          $i++;
        }
        $statement->free_result();
@@ -60,9 +66,11 @@ abstract class cms {
                                                                $home_link = "/") {
     $scripts = "";
        $stylesheets = "<link href=\"/includes/style.css\" rel=\"stylesheet\" type=\"text/css\">";
-       if (cms::determine_type() == "index") {
+       if ($this->determine_type() == "index") {
          $scripts = "<script type=\"text/javascript\" src=\"/includes/all.js\">";
          $home_link = "http://validator.w3.org/unicorn/check?ucn_uri=dylanstestserver.com&amp;ucn_task=conformance#";
+       } else if ($this->determine_type() == 'note') {
+         $scripts = "<script type=\"text/javascript\" src=\"http://www.google.com/recaptcha/api/js/recaptcha_ajax.js\"></script>";
        }
   echo <<<END_OF_HEAD
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
@@ -93,12 +101,20 @@ abstract class cms {
 END_OF_HEAD;
   }
 
-  public function display_close(){
-    echo <<<END_OF_CLOSE
+  public function display_contact() {
+    echo <<<END_OF_CONTACT
       <div id="contact_me"><h1><a href=
       "mailto:dylan@psu.edu">dylan</a></h1><a href=
       "mailto:dylan@psu.edu">@psu.edu</a>
          </div>
+END_OF_CONTACT;
+  }
+
+  public function display_close($show_contact = true) {
+    if ($show_contact) {
+         $this->display_contact();
+       }
+    echo <<<END_OF_CLOSE
     </div>
        <br>
     <br>
@@ -111,6 +127,10 @@ END_OF_CLOSE;
 
 }
 
+class blank_page extends cms {
+
+}
+
 class index extends cms {
        public function display() {
                $this->display_head();
@@ -151,9 +171,13 @@ class index extends cms {
 
         <li>
         </li>
-      </ul>
 OTHER_PROJECTS;
-               $this->display_close();
+        // Because of the CSS necessary for the animations,
+               // the contact link needs to be in #portfolio to clear
+               // the floats.
+           $this->display_contact();
+      echo "</ul>";
+               $this->display_close($show_contact = false);
        }
 
        protected function display_exhibits() {
@@ -273,9 +297,203 @@ class page extends cms {
 
 class note extends cms {
 
+  private $id;
+  private $comments_enabled = false;
+  private $failed_captcha;
+  public $url;
+  public $title;
+  public $year_posted;
+  public $month_posted;
+  public $day_posted;
+  public $text;
+  public $number_of_comments;
+
+  public function __construct($comments_enabled = false) {
+    parent::__construct();
+       $this->comments_enabled = $comments_enabled;
+    $url = htmlspecialchars($_SERVER['REQUEST_URI']);
+       if (isset($_GET['verify'])) {
+      $url = substr($url, 0, (strlen($url)-6));
+       }
+       $this->url = $url;
+    $sql = "SELECT title, date_posted, text, id
+                         FROM notes WHERE url = ?";
+       $result = $this->query($sql, "s",
+                                                         $_GET['note']);
+       if ($result) {
+         $entry = $result[0];
+         $this->id = $entry["id"];
+         $this->title = $entry["title"];
+         $date_posted =  explode("-", $entry["date_posted"]);
+         $this->year_posted = $date_posted[0];
+         $this->month_posted = $date_posted[1];
+         $datetime_posted = explode(' ', $date_posted[2]);
+         $this->day_posted = $datetime_posted[0];
+         $this->text = $entry["text"];
+       } else {
+         throw new notFound();
+       }
+       $sql = "SELECT COUNT(*) FROM comments
+                         WHERE note = $this->id";
+       $result = $this->db->query($sql);
+       $result = $result->fetch_array();
+       $this->number_of_comments = $result[0];
+       if (isset($_GET['verify'])) {
+         $this->verify();
+       }
+  }
+
+  public function display() {
+       $this->display_head();
+       $this->display_note();
+       if ($this->comments_enabled) {
+         $this->display_comments();
+         $this->display_comment_form();
+       }
+       $this->write_navigation();
+    $this->display_close();
+  }
+
+  private function verify() {
+    require_once('includes/recaptchalib.php');
+       echo "<br>";
+    $resp = recaptcha_check_answer ($this->recaptcha_privatekey,
+                                                                   $_SERVER["REMOTE_ADDR"],
+                                                                   $_POST["recaptcha_challenge_field"],
+                                                                   $_POST["recaptcha_response_field"]);
+    if (!$resp->is_valid) {
+         $this->failed_captcha = true;
+    } else {
+         $sql = ("INSERT INTO comments (date_posted, author,
+                               email, text, note)
+                               VALUES(NOW(), ?, ?, ?, ?)");
+         $stmt = $this->db->prepare($sql);
+         // Checks are needed here (no blank text,
+         // and a default author / email need to be set
+         $stmt->bind_param('ssss',
+                                               htmlspecialchars($_POST['author']),
+                                               htmlspecialchars($_POST['email']),
+                                               htmlspecialchars($_POST['text']),
+                                               $this->id);
+         $stmt->execute();
+       }
+  }
+
+  private function display_note() {
+       echo "<div id=\"note\">";
+    echo "<h2><span style=\"color:grey;\">$this->year_posted/$this->month_posted/$this->day_posted/</span>$this->title</h2>";
+       echo $this->text;
+  }
+
+  private function write_navigation() {
+    echo <<<END_OF_NAVIGATION
+       <br>
+    <div id=\"navigation\">
+    <h2>
+END_OF_NAVIGATION;
+    if ($this->failed_captcha) {
+      echo "<span style=\"color:red;border:1px solid black;padding:15px;\">sorry, reCAPTCHA said you're not human.</span><br><br><br>";
+       }
+       if (!$this->comments_enabled) {
+         $this->display_comment_link();
+       }
+    echo <<<END_OF_NAVIGATION
+       <a href="/notes/">notes</a>/
+    </h2>
+    </div>
+END_OF_NAVIGATION;
+  }
+
+  private function display_comment_link() {
+    if ($this->number_of_comments > 0) {
+         $anchor_text = "comments ($this->number_of_comments)";
+       } else {
+         $anchor_text = "comment?";
+       }
+       if (substr($this->url, (strlen($this->url)-1), strlen($this->url)) == '/') {
+      $url = $this->url . 'comments/';
+       } else {
+      $url = $this->url . '/comments/';
+       }
+    echo "<a id=\"comment_link\" href=\"$url\">$anchor_text</a>";
+  }
+
+  private function display_comments() {
+    echo "<div id=\"comments\">";
+       $sql= "SELECT date_posted, author, email, text
+                FROM comments WHERE note = ?
+                        ORDER BY date_posted DESC";
+    $result = $this->query($sql, "d", $this->id);
+       foreach ($result as $row => $entry) {
+         $date_posted = $entry['date_posted'];
+         $author = $entry['author'];
+         $email = $entry['email'];
+         $text = htmlspecialchars($entry['text']);
+         echo <<<END_OF_COMMENT
+         <h3><a href="mailto:$email">$author</a></h3>
+         $text
+         <br>
+         <br>
+END_OF_COMMENT;
+         }
+       echo "</div>";
+  }
+
+  private function display_comment_form() {
+    $publickey = $this->recaptcha_publickey;
+    echo <<<END_CAPTCHA_STYLE
+<script type="text/javascript">
+function showRecaptcha(element) {
+Recaptcha.create("$publickey",
+   "recaptcha_div", 
+   {
+     theme : 'custom',
+     custom_theme_widget: 'recaptcha_widget',
+     callback: Recaptcha.focus_response_field
+   });
+}
+</script>
+END_CAPTCHA_STYLE;
+    require_once('includes/recaptchalib.php');
+       // Trailing slash is necessary for reloads to work
+    $url = $this->url . "verify";
+       echo "<form method=\"post\" action=\"$url\">";
+       echo  <<<END_OF_FORM
+<div id="comment">
+<input type="button" value="comment" onclick="showRecaptcha('recaptcha_div');"></input>
+
+<div id="recaptcha_div">
+<br>
+<h3>comment:</h3>
+<textarea rows="10" cols="70" name=text></textarea>
+<h3>name:</h3>
+<input type=text name=author>
+<h3>email:</h3>
+<input type=text name=email><br>
+<nowiki>
+
+<div id="recaptcha_widget"> 
+<h3 class="recaptcha_only_if_image"><b>what's this say</b>?</h3>
+<h3 class="recaptcha_only_if_audio"><b>enter the numbers you hear</b>:</h3><span style="font-size:80%;">(<a href="javascript:Recaptcha.reload()">another</a>/<span class="recaptcha_only_if_image"><a href="javascript:Recaptcha.switch_type('audio')">audio</a></span>/<span class="recaptcha_only_if_audio"><a href="javascript:Recaptcha.switch_type('image')">Get an image CAPTCHA</a></span><a href="javascript:Recaptcha.showhelp()">help</a>)</span><br><br>
+  <input type="text" id="recaptcha_response_field" name="recaptcha_response_field" />
+<br><br>
+<div style="float:right;position:relative;width:100px;"><div id="recaptcha_image"></div></div>
+<br><br><br><br>
+</div>
+</div>
+
+<input class="submit" type="submit" value="comment">
+</form>
+</div>
+END_OF_FORM;
+  }
+}
+
+
+class archive extends cms {
+
   public function __construct() {
     parent::__construct();
-       $this->check_exists();
   }
 
   private function check_exists() {
@@ -283,27 +501,66 @@ class note extends cms {
                          WHERE url = ?";
        $results = $this->query($sql, "s", $_GET['note']);
        if ($results[0]["COUNT(*)"] != 1) {
-         throw new notFound();
+         $this->not_found();
        }
   }
 
   public function display() {
+    // this really needs its own pagination...
+       // there should be a class for that.
        $this->display_head();
-    $sql = "SELECT title, date_posted, text
-                         FROM notes WHERE url = ?";
-       $result = $this->query($sql, "s",
-                                                         $_GET['note']);
-       $entry = $result[0];
-       $title = $entry["title"];
-       $date_posted =  explode("-", $entry["date_posted"]);
-       $year_posted = $date_posted[0];
-       $month_posted = $date_posted[1];
-       $datetime_posted = explode(' ', $date_posted[2]);
-       $day_posted = $datetime_posted[0];
-       echo "<div id=\"note\">";
-    echo "<h2><span style=\"color:grey;\">$year_posted/$month_posted/$day_posted/</span>$title</h2>";
-       echo $entry['text'];
-       $this->write_navigation();
+       switch (true) {
+         case (isset($_GET['year']) && !isset($_GET['month'])
+                         && !isset($_GET['day'])):
+       $sql = "SELECT title, url, date_posted, text
+                               FROM notes WHERE YEAR(date_posted) = ?
+                               ORDER BY date_posted DESC";
+               $result = $this->query($sql, "d",
+                                                               $_GET['year']);
+           break;
+         case (isset($_GET['year']) && isset($_GET['month'])
+                         && !isset($_GET['day'])):
+       $sql = "SELECT title, url, date_posted, text
+                               FROM notes WHERE YEAR(date_posted) = ?
+                               AND MONTH(date_posted) = ?
+                               ORDER BY date_posted DESC";
+               $result = $this->query($sql, "dd",
+                                                               $_GET['year'], $_GET['month']);
+           break;
+         case (isset($_GET['year']) && isset($_GET['month'])
+                 && isset($_GET['day'])):
+       $sql = "SELECT title, url, date_posted, text
+                               FROM notes WHERE YEAR(date_posted) = ?
+                               AND MONTH(date_posted) = ?
+                               AND DAY(date_posted) = ?
+                               ORDER BY date_posted DESC";
+               $result = $this->query($sql, "ddd",
+                                                               $_GET['year'], $_GET['month'],
+                                                               $_GET['day']);
+           break;
+       }
+       if (count($result) >= 1) {
+         echo "<div id=\"notes\">";
+         foreach ($result as $row => $entry) {
+           $title = $entry['title'];
+           $url = '/note/' . $entry['url'];
+           $date_posted =  explode("-", $entry['date_posted']);
+           $year_posted = $date_posted[0];
+           $month_posted = $date_posted[1];
+           $datetime_posted = explode(' ', $date_posted[2]);
+           $day_posted = $datetime_posted[0];
+           echo "<div class=\"note\">";
+        echo "<h2><span style=\"color:grey;\">$year_posted/$month_posted/$day_posted/</span><a href=\"$url\">$title</a></h2>";
+           echo $entry['text'];
+           echo "</div>";
+         }
+         echo "</div>";
+         $this->write_navigation();
+       } else {
+         echo "<br>";
+         echo "<h2 style=\"font-family:sans-serif;\">sorry, nothing here</h2>";
+         echo "<pre>Empty set (0.00 sec)</pre>";
+       }
     $this->display_close();
   }
 
@@ -311,12 +568,13 @@ class note extends cms {
        echo "<br>";
     echo "<div id=\"navigation\">";
     echo "<h2>";
-    echo "<a href=\"/notes/\">notes</a>/";
+       // fill me in!
     echo "</h2>";
     echo "</div>";
   }
 }
 
+
 class notFound extends Exception {
        public function __construct() {
       header("HTTP/1.0 404 Not Found");
@@ -337,13 +595,21 @@ switch (cms::determine_type()) {
        $project->display();
        break;
   case "note":
-    $note = new note;
+    if (isset($_GET['comments'])) {
+      $note = new note($comments_enabled = true);
+       } else {
+      $note = new note;
+       }
        $note->display();
        break;
   case "page":
     $page = new page;
        $page->display();
        break;
+  case "archive":
+    $archive = new archive;
+       $archive->display();
+       break;
 }
 
 ?>