cms.php

   1 <?php
   2
   3 abstract class cms {
   4
   5   private $config_file = '/etc/dylansserver.ini';
   6   protected $db;
   7   protected $recaptcha_publickey;
   8   protected $recaptcha_privatekey;
   9   protected  $scripts;
  10   public $title;
  11   public $home_link;
  12
  13   public function __construct() {
  14     $config = parse_ini_file($this->config_file, true);
  15     $this->db = new mysqli(
  16       $config['database']['domain'],
  17       $config['database']['user'],
  18       $config['database']['password'],
  19       $config['database']['database']);
  20     if (mysqli_connect_errno()) {
  21       echo "Problem connecting to database: ";
  22       echo mysqli_connect_error();
  23       exit();
  24     }
  25     $this->recaptcha_publickey = $config['recaptcha']['publickey'];
  26     $this->recaptcha_privatekey = $config['recaptcha']['privatekey'];
  27     $this->title = $config['site']['default_title'];
  28     $this->home_link = $config['site']['home_link'];
  29     ob_start();
  30   }
  31
  32   public static function determine_type() {
  33     if (isset($_GET['page']) && is_numeric($_GET['page'])) {
  34       return 'page';
  35     } else if (isset($_GET['year'])) {
  36       return 'archive';
  37     } else if (isset($_GET['note'])) {
  38       return 'note';
  39     } else if ($_SERVER['REQUEST_URI'] == '/') {
  40       return 'index';
  41     } else if (isset($_GET['project'])) {
  42       return 'project';
  43         } else if (isset($_GET['rss'])) {
  44           return 'rss';
  45         } else if (isset($_GET['challenge'])) {
  46       return 'captcha';
  47     }
  48   }
  49
  50   public function query() {
  51     $args = func_get_args();
  52     $statement = $this->db->prepare($args[0]);
  53     $args = array_slice($args, 1);
  54     call_user_func_array(array($statement, 'bind_param'), &$args);
  55     $statement->execute();
  56     $return = array();
  57     $statement->store_result();
  58     $row = array();
  59     $data = $statement->result_metadata();
  60     $fields = array();
  61     $fields[0] = &$statement;
  62     while($field = $data->fetch_field()) {
  63       $fields[] = &$row[$field->name];
  64     }
  65     call_user_func_array("mysqli_stmt_bind_result", $fields);
  66     $i = 0;
  67     while ($statement->fetch()) {
  68         foreach ($row as $key=>$value) $return[$i][$key] = $value;
  69       $i++;
  70     }
  71     $statement->free_result();
  72     return $return;
  73       }
  74
  75   public function display_head($title = "dylansserver",
  76                                   $home_link = "/") {
  77     $scripts = $this->scripts;
  78     $stylesheets = "<link href='/includes/style.css' rel='stylesheet' type='text/css'>";
  79     $home_link = "http://validator.w3.org/unicorn/check?ucn_uri=dylansserver.com&amp;ucn_task=conformance#";
  80     echo <<<END_OF_HEAD
  81 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
  82 "http://www.w3.org/TR/html4/loose.dtd">
  83
  84 <html>
  85 <head>
  86   <meta name="generator" content=
  87   "HTML Tidy for Linux (vers 25 March 2009), see www.w3.org">
  88   <meta http-equiv="Content-type" content="text/html;charset=UTF-8">
  89
  90   <title>$this->title</title>
  91   <link rel="icon" href="/favicon.ico" type="image/png">
  92   $stylesheets
  93   $scripts
  94 </head>
  95
  96 <body onload="return typeof highlight == 'function' ? highlight() : true;">
  97   <div id="structure">
  98     <div id="banner">
  99       <a href="$this->home_link">
 100       <img src="/images/dylansserver.png" alt="dylansserver"
 101       border="0"></a>
 102     </div>
 103
 104     <div id="content">
 105 END_OF_HEAD;
 106   }
 107
 108   public function display_contact() {
 109     echo <<<END_OF_CONTACT
 110       <div id="contact_me"><h1><a href=
 111       "mailto:dylan@psu.edu">dylan</a></h1><a href=
 112       "mailto:dylan@psu.edu">@psu.edu</a>
 113       </div>
 114 END_OF_CONTACT;
 115   }
 116
 117   public function display_close($show_contact = true) {
 118     if ($show_contact) {
 119       $this->display_contact();
 120     }
 121     echo <<<END_OF_CLOSE
 122     </div>
 123     <br>
 124     <br>
 125   </div>
 126 </body>
 127 </html>
 128 END_OF_CLOSE;
 129     ob_flush();
 130   }
 131
 132   public function init() {
 133     switch (cms::determine_type()) {
 134       case 'index':
 135         $index = new index();
 136         $index->display();
 137         break;
 138       case 'project':
 139         $project = new project();
 140         $project->display();
 141         break;
 142       case 'note':
 143         $note = new note;
 144         $note->display();
 145         break;
 146       case 'page':
 147         $page = new page;
 148         $page->display();
 149         break;
 150       case "rss":
 151         $rss = new rss();
 152         $rss->display();
 153         break;
 154       case 'archive':
 155         $archive = new archive;
 156         $archive->display();
 157         break;
 158       case "captcha":
 159         $captcha = new captcha;
 160         $captcha->display();
 161         break;
 162     }
 163   }
 164
 165 }
 166
 167
 168 class index extends cms {
 169
 170   public function display() {
 171     $this->scripts = "<script type='text/javascript' src='/includes/index.js'></script>";
 172     $this->display_head();
 173     $this->display_exhibits();
 174     echo "<ul id='portfolio'>";
 175     $this->list_projects();
 176     echo <<<OTHER_PROJECTS
 177         <li>
 178           <h3>things i've done for others:</h3>
 179         </li>
 180
 181         <li><a href=
 182         "http://activehamptons.com">activehamptons.com</a></li>
 183
 184         <li><a href=
 185         "http://transfishing.com">transfishing.com</a></li>
 186
 187         <li>
 188           <h3>something i've worked on:</h3>
 189         </li>
 190
 191         <li><a href=
 192         "http://tempositions.com">tempositions.com</a></li>
 193
 194         <li>
 195           <h3>my repositories:</h3>
 196         </li>
 197
 198         <li><a href=
 199         "/git/">git://dylansserver.com</a></li>
 200
 201         <li>
 202           <h3>some notes:</h3>
 203         </li>
 204
 205         <li><a href=
 206         "/notes/">here</a> [<a href="/notes/rss">rss</a>]</li>
 207
 208         <li>
 209           <h3>my resume:</h3>
 210         </li>
 211
 212         <li>[<a href=
 213         "/resume">pdf</a>]</li>
 214
 215         <li>
 216         </li>
 217 OTHER_PROJECTS;
 218     // Because of the CSS necessary for the animations,
 219     // the contact link needs to be in #portfolio to clear
 220     // the floats.
 221     echo "<li>";
 222     $this->display_contact();
 223     echo "</li>";
 224     echo "</ul>";
 225     $this->display_close($show_contact = false);
 226   }
 227
 228   protected function display_exhibits() {
 229     echo "<div id='exhibit'>";
 230     $sql = "SELECT text FROM projects ORDER BY rank";
 231     $result = $this->db->query($sql);
 232     while ($entry = $result->fetch_object()) {
 233       echo $entry->text;
 234     }
 235     echo "</div>";
 236   }
 237
 238   private function list_projects() {
 239     echo <<<HEREDOC
 240         <li>
 241           <h3>my projects:</h3>
 242         </li>
 243 HEREDOC;
 244     $sql = "SELECT title FROM projects ORDER BY rank";
 245     $result = $this->db->query($sql);
 246     while ($entry = $result->fetch_object()) {
 247       echo "<li><a class='tab' href='$entry->title'>$entry->title</a></li>";
 248     }
 249   }
 250
 251 }
 252
 253
 254 class project extends index {
 255
 256   protected function display_exhibits() {
 257     echo "<div id='exhibit'>";
 258     $sql = "SELECT text FROM projects
 259              WHERE title = ?";
 260     $result = $this->query($sql, "s", $_GET['project']);
 261     if ($result = $result[0]['text']) {
 262       $text =  str_replace("class='exhibit'", "class='exhibit' style='display:block;'", $result);
 263       echo $text;
 264       echo "</div>";
 265     } else {
 266       throw new notFound();
 267     }
 268   }
 269
 270 }
 271
 272
 273 class page extends cms {
 274
 275   private $page = 1;
 276   private $offset = 0;
 277   private $notes_per_page = 4;
 278   private $number_of_pages = 1;
 279
 280   public function __construct() {
 281     parent::__construct();
 282     $this->page_offset();
 283     $this->scripts = "
 284         <script type='text/javascript' src='/includes/syntax/scripts/shCore.js'></script>
 285         <script type='text/javascript' src='/includes/syntax/scripts/shAutoloader.js'></script>
 286         <link type='text/css' rel='stylesheet' href='/includes/syntax/styles/shCore.css'>
 287         <link type='text/css' rel='stylesheet' href='/includes/syntax/styles/shThemeDefault.css'>
 288         <script type='text/javascript'>
 289           function highlight() {
 290             SyntaxHighlighter.autoloader(
 291              'js /includes/syntax/scripts/shBrushJScript.js',
 292              'bash /includes/syntax/scripts/shBrushBash.js',
 293              'sql /includes/syntax/scripts/shBrushSql.js',
 294              'cpp /includes/syntax/scripts/shBrushCpp.js');
 295             SyntaxHighlighter.defaults['gutter'] = false;
 296             SyntaxHighlighter.defaults['toolbar'] = false;
 297             SyntaxHighlighter.all();
 298           }
 299         </script>
 300     ";
 301   }
 302
 303   private function page_offset() {
 304     $sql = "SELECT COUNT(*) FROM notes";
 305     $result = $this->db->query($sql);
 306     $result = $result->fetch_array();
 307     $this->number_of_pages = ceil($result[0] / $this->notes_per_page);
 308     if (isset($_GET['page']) && is_numeric($_GET['page'])) {
 309       $this->page = (int) $_GET['page'];
 310     } else {
 311       throw new notFound();
 312     }
 313     if ($this->page > $this->number_of_pages) {
 314       throw new notFound();
 315     }
 316     if ($this->page < 1) {
 317       throw new notFound();
 318     }
 319     $this->offset = ($this->page - 1) * $this->notes_per_page;
 320   }
 321
 322   public function display() {
 323     $this->display_head();
 324     echo "<div id='notes'>";
 325     $sql = "SELECT date_posted, title, url, text
 326               FROM notes ORDER BY date_posted DESC
 327               LIMIT ?, ?";
 328     $result = $this->query($sql, "ii",
 329                               $this->offset,
 330                               $this->notes_per_page);
 331     foreach ($result as $row => $entry) {
 332       $title = $entry['title'];
 333       $url = '/note/' . $entry['url'];
 334       $date_posted =  explode("-", $entry['date_posted']);
 335       $year_posted = $date_posted[0];
 336       $month_posted = $date_posted[1];
 337       $datetime_posted = explode(' ', $date_posted[2]);
 338       $day_posted = $datetime_posted[0];
 339       $text = $entry['text'];
 340       echo <<<END_NOTE
 341       <div class='note'>
 342       <h1>
 343         <span class='date'>$year_posted/$month_posted/$day_posted/</span><a rel="canonical" href='$url'>$title</a>
 344       </h1>
 345       $text
 346       </div>
 347 END_NOTE;
 348     }
 349     echo "</div>";
 350     $this->write_navigation();
 351     $this->display_close();
 352   }
 353
 354   private function write_navigation() {
 355     echo "<div id='navigation'>";
 356     echo "<h1>";
 357     if($this->page > 1){
 358       $previous_page = $this->page - 1;
 359       echo "<a href='/notes/page/$previous_page'>prev</a>";
 360     }
 361     if($this->page < $this->number_of_pages) {
 362     $forward_page = $this->page + 1;
 363     echo " <a href='/notes/page/$forward_page'>next</a>";
 364     }
 365     echo "</h1>";
 366     echo "</div>";
 367   }
 368
 369 }
 370
 371
 372 class note extends cms {
 373
 374   private $id;
 375   private $comments_enabled = false;
 376   private $failed_captcha;
 377   public $url;
 378   public $title;
 379   public $year_posted;
 380   public $month_posted;
 381   public $day_posted;
 382   public $text;
 383   public $number_of_comments;
 384
 385   public function __construct() {
 386       $this->scripts = "
 387         <script type='text/javascript' src='/includes/syntax/scripts/shCore.js'></script>
 388         <script type='text/javascript' src='/includes/syntax/scripts/shAutoloader.js'></script>
 389         <link type='text/css' rel='stylesheet' href='/includes/syntax/styles/shCore.css'>
 390         <link type='text/css' rel='stylesheet' href='/includes/syntax/styles/shThemeDefault.css'>
 391         <script type='text/javascript'>
 392           function highlight() {
 393             SyntaxHighlighter.autoloader(
 394              'js /includes/syntax/scripts/shBrushJScript.js',
 395              'bash /includes/syntax/scripts/shBrushBash.js',
 396              'sql /includes/syntax/scripts/shBrushSql.js',
 397              'cpp /includes/syntax/scripts/shBrushCpp.js');
 398             SyntaxHighlighter.defaults['gutter'] = false;
 399             SyntaxHighlighter.defaults['toolbar'] = false;
 400             SyntaxHighlighter.all();
 401           }
 402         </script>
 403       ";
 404
 405     if (isset($_GET['comments'])) {
 406       $this->scripts .= "
 407         <script type='text/javascript' src='http://www.google.com/recaptcha/api/js/recaptcha_ajax.js'></script>
 408         <script type='text/javascript' src='/includes/comment.js'></script>";
 409     }
 410     parent::__construct();
 411     if (isset($_GET['comments'])) {
 412       $this->comments_enabled = true;
 413     }
 414     $url = htmlspecialchars($_SERVER['REQUEST_URI']);
 415     if (isset($_GET['verify'])) {
 416       $url = substr($url, 0, (strlen($url)-6));
 417     }
 418     $this->url = $url;
 419     $sql = "SELECT title, date_posted, text, id
 420               FROM notes WHERE url = ?";
 421     $result = $this->query($sql, "s",
 422                               $_GET['note']);
 423     if ($result) {
 424       $entry = $result[0];
 425       $this->id = $entry["id"];
 426       $this->title = $entry["title"];
 427       $date_posted =  explode("-", $entry["date_posted"]);
 428       $this->year_posted = $date_posted[0];
 429       $this->month_posted = $date_posted[1];
 430       $datetime_posted = explode(' ', $date_posted[2]);
 431       $this->day_posted = $datetime_posted[0];
 432       $this->text = $entry["text"];
 433     } else {
 434       throw new notFound();
 435     }
 436     $sql = "SELECT COUNT(*) FROM comments
 437               WHERE note = $this->id";
 438     $result = $this->db->query($sql);
 439     $result = $result->fetch_array();
 440     $this->number_of_comments = $result[0];
 441     if (isset($_GET['verify'])) {
 442       $this->verify();
 443     }
 444   }
 445
 446   public function display() {
 447       require_once("view/note.php");
 448   }
 449
 450   private function verify() {
 451     if (!isset($_POST['captcha'])) {
 452       require_once('includes/recaptchalib.php');
 453       echo "<br>";
 454       $resp = recaptcha_check_answer ($this->recaptcha_privatekey,
 455                                       $_SERVER["REMOTE_ADDR"],
 456                                       $_POST["recaptcha_challenge_field"],
 457                                       $_POST["recaptcha_response_field"]);
 458       if (!$resp->is_valid) {
 459         $this->failed_captcha = true;
 460       }
 461     }
 462     if (isset($_POST['captcha']) || $resp->is_valid) {
 463       $sql = ("INSERT INTO comments (date_posted, author,
 464                   text, note)
 465                 VALUES(NOW(), ?, ?, ?)");
 466       $stmt = $this->db->prepare($sql);
 467       // Checks are needed here (no blank text,
 468       // and a default author needs to be set
 469       // for no-javascript users.
 470       $stmt->bind_param('sss',
 471                           $_POST['name'],
 472                           $_POST['text'],
 473                         $this->id);
 474       $stmt->execute();
 475     }
 476   }
 477
 478   private function display_comment_link() {
 479     if ($this->number_of_comments > 0) {
 480       $anchor_text = "comments($this->number_of_comments)/";
 481     } else {
 482       $anchor_text = "comment?";
 483     }
 484     if (substr($this->url, (strlen($this->url)-1), strlen($this->url)) == '/') {
 485       $url = $this->url . 'comments/';
 486     } else {
 487       $url = $this->url . '/comments/';
 488     }
 489     echo "<a id='comment_link' href='$url'>$anchor_text</a>";
 490   }
 491
 492   private function display_comments() {
 493     echo "<div id='comments'>";
 494     $sql= "SELECT date_posted, author, text
 495              FROM comments WHERE note = ?
 496              ORDER BY date_posted DESC";
 497     $result = $this->query($sql, 'd', $this->id);
 498     foreach ($result as $row => $entry) {
 499       $date_posted = $entry['date_posted'];
 500       $author = $entry['author'];
 501       $text = htmlspecialchars($entry['text']);
 502       $head = "<h3>" . htmlspecialchars($author) . "</h3>";
 503       echo <<<END_OF_COMMENT
 504       <div class='comment'>
 505       $head
 506       $text
 507       </div>
 508 END_OF_COMMENT;
 509       }
 510     echo "</div>";
 511   }
 512
 513   private function display_comment_form() {
 514     $publickey = $this->recaptcha_publickey;
 515     echo <<<END_CAPTCHA_STYLE
 516 <script type="text/javascript">
 517 Recaptcha.create("$publickey",
 518    "recaptcha_div",
 519    {
 520      theme : 'custom',
 521      custom_theme_widget: 'recaptcha_widget',
 522      callback: Recaptcha.focus_response_field
 523    });
 524 </script>
 525 END_CAPTCHA_STYLE;
 526     require_once('includes/recaptchalib.php');
 527     $url = $this->url . "verify";
 528     echo "<form id='comment_form'  method='post' action='$url'>";
 529     echo <<<END_OF_FORM
 530     <div id="comment">
 531       <h3>comment:</h3>
 532       <textarea rows="10" cols="70" name="text" id="comment_text"></textarea>
 533       <h3>name:</h3>
 534       <input type=text name="name" id="comment_name">
 535
 536       <nowiki>
 537       <div id="recaptcha_widget">
 538         <br>
 539         <h3><b>what's this say</b>?</h3>
 540         <br>
 541           <div id="recaptcha_image"></div>
 542         <br><br><br>
 543         <span class="recaptcha_only_if_image"><br><br><br></span>
 544         <input type="text" id="recaptcha_response_field" name="recaptcha_response_field" />
 545         <br><br>
 546         <h3 class="recaptcha_only_if_audio"><b>enter the numbers you hear</b>:</h3>
 547         <span class="recaptcha_help">
 548           <a href="javascript:Recaptcha.reload()">another?</a> /
 549           <span class="recaptcha_only_if_image"><a href="javascript:Recaptcha.switch_type('audio')">audio?</a> /</span>
 550           <span class="recaptcha_only_if_audio"><a href="javascript:Recaptcha.switch_type('image')">image?</a></span><a href="javascript:Recaptcha.showhelp()">help?</a>
 551         </span>
 552       </div>
 553 END_OF_FORM;
 554     echo recaptcha_get_html($this->recaptcha_publickey);
 555     if ($this->failed_captcha) {
 556     echo <<<END_OF_ERRORS
 557         <div id="not_human">
 558           reCAPTCHA said you're not human, <br>
 559           try again?
 560         </div>
 561         <input id="submit" class="submit" type="submit" value="post comment">
 562         </form>
 563       </div>
 564 END_OF_ERRORS;
 565     } else {
 566       echo <<<END_OF_ERRORS
 567         <div id="not_human">
 568           reCAPTCHA said you're not human, <br>
 569           try again?
 570         </div>
 571         <div id="blank_comment">
 572           but you didn't write anything! <br>
 573         </div>
 574 END_OF_ERRORS;
 575     }
 576     echo <<<END_OF_FORM
 577       <input id="submit" class="submit" type="submit" value="post comment">
 578       </form>
 579       </div>
 580 END_OF_FORM;
 581   }
 582 }
 583
 584
 585 class archive extends cms {
 586
 587   public function __construct() {
 588     parent::__construct();
 589   }
 590
 591   private function check_exists() {
 592     $sql = "SELECT COUNT(*) FROM notes
 593               WHERE url = ?";
 594     $results = $this->query($sql, "s", $_GET['note']);
 595     if ($results[0]["COUNT(*)"] != 1) {
 596       $this->not_found();
 597     }
 598   }
 599
 600   public function display() {
 601     $this->display_head();
 602     switch (true) {
 603       case (isset($_GET['year']) && !isset($_GET['month'])
 604                 && !isset($_GET['day'])):
 605         $sql = "SELECT title, url, date_posted, text
 606                   FROM notes WHERE YEAR(date_posted) = ?
 607                 ORDER BY date_posted DESC";
 608         $result = $this->query($sql, "d",
 609                                   $_GET['year']);
 610         break;
 611       case (isset($_GET['year']) && isset($_GET['month'])
 612                && !isset($_GET['day'])):
 613         $sql = "SELECT title, url, date_posted, text
 614                   FROM notes WHERE YEAR(date_posted) = ?
 615                 AND MONTH(date_posted) = ?
 616                 ORDER BY date_posted DESC";
 617         $result = $this->query($sql, "dd",
 618                                   $_GET['year'], $_GET['month']);
 619         break;
 620       case (isset($_GET['year']) && isset($_GET['month'])
 621               && isset($_GET['day'])):
 622         $sql = "SELECT title, url, date_posted, text
 623                   FROM notes WHERE YEAR(date_posted) = ?
 624                 AND MONTH(date_posted) = ?
 625                 AND DAY(date_posted) = ?
 626                 ORDER BY date_posted DESC";
 627         $result = $this->query($sql, "ddd",
 628                                 $_GET['year'], $_GET['month'],
 629                                 $_GET['day']);
 630         break;
 631     }
 632     if (count($result) >= 1) {
 633       echo "<div id='notes'>";
 634       foreach ($result as $row => $entry) {
 635         $title = $entry['title'];
 636         $url = '/note/' . $entry['url'];
 637         $date_posted =  explode("-", $entry['date_posted']);
 638         $year_posted = $date_posted[0];
 639         $month_posted = $date_posted[1];
 640         $datetime_posted = explode(' ', $date_posted[2]);
 641         $day_posted = $datetime_posted[0];
 642         echo "<div class='note'>";
 643         echo "<h1><span class='date'>";
 644         echo "$year_posted/$month_posted/$day_posted/";
 645         echo "</span><a href='$url'>$title</a></h1>";
 646         echo $entry['text'];
 647         echo "</div>";
 648       }
 649       echo "</div>";
 650       $this->write_navigation();
 651     } else {
 652       echo "<br>";
 653       echo "<h1>sorry, nothing here</h2>";
 654       echo "<pre>Empty set (0.00 sec)</pre>";
 655     }
 656     $this->display_close();
 657   }
 658
 659   private function write_navigation() {
 660     echo "<br>";
 661     echo "<div id='navigation'>";
 662     // fill me in!
 663     echo "</div>";
 664   }
 665
 666 }
 667
 668
 669 class rss extends cms {
 670   public function display() {
 671     $result = $this->db->query("SELECT date_posted, title, text, url
 672                                           FROM notes ORDER BY date_posted DESC
 673                                           LIMIT 5");
 674           echo <<<END_OF_ENTRY
 675           <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
 676       <channel>
 677             <title>dylansserver.com/notes/rss</title>
 678                 <link>http://dylansserver.com/notes</link>
 679                 <description>dylansserver.com/notes/rss</description>
 680                 <atom:link href="http://dylansserver.com/notes/rss" rel="self" type="application/rss+xml" />
 681 END_OF_ENTRY;
 682         while ($entry = $result->fetch_object()) {
 683           $title = $entry->title;
 684           $date_posted = $entry->date_posted;
 685           $url = "http://dylansserver.com/note/" . $entry->url;
 686           $text = $entry->text;
 687           $text = strip_tags($text);
 688           $end_of_first_sentence = strpos($text, '.');
 689           if ($end_of_first_sentence) {
 690             $end_of_second_sentence = strpos($text, '.', ($end_of_first_sentence + 1));
 691                 if ($end_of_second_sentence) {
 692                   $description = substr($text, '0', ($end_of_second_sentence + 1));
 693                 } else {
 694                   $description = substr($text, '0', ($end_of_first_sentence + 1));
 695                 }
 696           }
 697           echo <<<END_OF_ENTRY
 698             <item>
 699                   <title>$title</title>
 700                   <link>$url</link>
 701                   <guid>$url</guid>
 702                   <description>$description</description>
 703             </item>
 704 END_OF_ENTRY;
 705         }
 706       echo "</channel>";
 707       echo "</rss>";
 708
 709   }
 710 }
 711
 712
 713 class notFound extends Exception {
 714
 715     public function __construct() {
 716       header('HTTP/1.0 404 Not Found');
 717       ob_end_clean();
 718       include('404.php');
 719       exit();
 720     }
 721
 722 }
 723
 724
 725 class captcha extends cms {
 726
 727     public function display() {
 728       $challenge = $_GET['challenge'];
 729       $response = $_GET['response'];
 730       $remoteip = $_SERVER['REMOTE_ADDR'];
 731       $curl = curl_init('http://api-verify.recaptcha.net/verify?');
 732       curl_setopt ($curl, CURLOPT_POST, 4);
 733       curl_setopt ($curl, CURLOPT_POSTFIELDS, "privatekey=$this->recaptcha_privatekey&remoteip=$remoteip&challenge=$challenge&response=$response");
 734       $result = curl_exec ($curl);
 735       curl_close ($curl);
 736     }
 737
 738 }
 739
 740 ?>