index.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 }
 133
 134
 135 class index extends cms {
 136
 137   public function display() {
 138     $this->scripts = "<script type='text/javascript' src='/includes/index.js'></script>";
 139     $this->display_head();
 140     $this->display_exhibits();
 141     echo "<ul id='portfolio'>";
 142     $this->list_projects();
 143     echo <<<OTHER_PROJECTS
 144         <li>
 145           <h3>things i've done for others:</h3>
 146         </li>
 147
 148         <li><a href=
 149         "http://activehamptons.com">activehamptons.com</a></li>
 150
 151         <li><a href=
 152         "http://transfishing.com">transfishing.com</a></li>
 153
 154         <li>
 155           <h3>something i've worked on:</h3>
 156         </li>
 157
 158         <li><a href=
 159         "http://tempositions.com">tempositions.com</a></li>
 160
 161         <li>
 162           <h3>my repositories:</h3>
 163         </li>
 164
 165         <li><a href=
 166         "git">git://dylansserver.com</a></li>
 167
 168         <li>
 169           <h3>some notes:</h3>
 170         </li>
 171
 172         <li><a href=
 173         "/notes/">here</a> [<a href="/notes/rss">rss</a>]</li>
 174
 175         <li>
 176         </li>
 177 OTHER_PROJECTS;
 178     // Because of the CSS necessary for the animations,
 179     // the contact link needs to be in #portfolio to clear
 180     // the floats.
 181     echo "<li>";
 182     $this->display_contact();
 183     echo "</li>";
 184     echo "</ul>";
 185     $this->display_close($show_contact = false);
 186   }
 187
 188   protected function display_exhibits() {
 189     echo "<div id='exhibit'>";
 190     $sql = "SELECT text FROM projects";
 191     $result = $this->db->query($sql);
 192     while ($entry = $result->fetch_object()) {
 193       echo $entry->text;
 194     }
 195     echo "</div>";
 196   }
 197
 198   private function list_projects() {
 199     echo <<<HEREDOC
 200         <li>
 201           <h3>my projects:</h3>
 202         </li>
 203 HEREDOC;
 204     $sql = "SELECT title FROM projects";
 205     $result = $this->db->query($sql);
 206     while ($entry = $result->fetch_object()) {
 207       echo "<li><a class='tab' href='$entry->title'>$entry->title</a></li>";
 208     }
 209   }
 210
 211 }
 212
 213
 214 class project extends index {
 215
 216   protected function display_exhibits() {
 217     echo "<div id='exhibit'>";
 218     $sql = "SELECT text FROM projects
 219              WHERE title = ?";
 220     $result = $this->query($sql, "s", $_GET['project']);
 221     if ($result = $result[0]['text']) {
 222       $text =  str_replace("class='exhibit'", "class='exhibit' style='display:block;'", $result);
 223       echo $text;
 224       echo "</div>";
 225     } else {
 226       throw new notFound();
 227     }
 228   }
 229
 230 }
 231
 232
 233 class page extends cms {
 234
 235   private $page = 1;
 236   private $offset = 0;
 237   private $notes_per_page = 4;
 238   private $number_of_pages = 1;
 239
 240   public function __construct() {
 241     parent::__construct();
 242     $this->page_offset();
 243     $this->scripts = "
 244         <script type='text/javascript' src='/includes/syntax/scripts/shCore.js'></script>
 245         <script type='text/javascript' src='/includes/syntax/scripts/shAutoloader.js'></script>
 246         <link type='text/css' rel='stylesheet' href='/includes/syntax/styles/shCore.css'></script>
 247         <link type='text/css' rel='stylesheet' href='/includes/syntax/styles/shThemeDefault.css'></link>
 248         <script type='text/javascript'>
 249           function highlight() {
 250             SyntaxHighlighter.autoloader(
 251              'js /includes/syntax/scripts/shBrushJScript.js',
 252              'bash /includes/syntax/scripts/shBrushBash.js',
 253              'sql /includes/syntax/scripts/shBrushSql.js');
 254             SyntaxHighlighter.defaults['gutter'] = false;
 255             SyntaxHighlighter.defaults['toolbar'] = false;
 256             SyntaxHighlighter.all();
 257           }
 258         </script>
 259     ";
 260   }
 261
 262   private function page_offset() {
 263     $sql = "SELECT COUNT(*) FROM notes";
 264     $result = $this->db->query($sql);
 265     $result = $result->fetch_array();
 266     $this->number_of_pages = ceil($result[0] / $this->notes_per_page);
 267     if (isset($_GET['page']) && is_numeric($_GET['page'])) {
 268       $this->page = (int) $_GET['page'];
 269     } else {
 270       throw new notFound();
 271     }
 272     if ($this->page > $this->number_of_pages) {
 273       throw new notFound();
 274     }
 275     if ($this->page < 1) {
 276       throw new notFound();
 277     }
 278     $this->offset = ($this->page - 1) * $this->notes_per_page;
 279   }
 280
 281   public function display() {
 282     $this->display_head();
 283     echo "<div id='notes'>";
 284     $sql = "SELECT date_posted, title, url, text
 285               FROM notes ORDER BY date_posted DESC
 286               LIMIT ?, ?";
 287     $result = $this->query($sql, "ii",
 288                               $this->offset,
 289                               $this->notes_per_page);
 290     foreach ($result as $row => $entry) {
 291       $title = $entry['title'];
 292       $url = '/note/' . $entry['url'];
 293       $date_posted =  explode("-", $entry['date_posted']);
 294       $year_posted = $date_posted[0];
 295       $month_posted = $date_posted[1];
 296       $datetime_posted = explode(' ', $date_posted[2]);
 297       $day_posted = $datetime_posted[0];
 298       $text = $entry['text'];
 299       echo <<<END_NOTE
 300       <div class='note'>
 301       <h1>
 302         <span class='date'>$year_posted/$month_posted/$day_posted/</span><a rel="canonical" href='$url'>$title</a>
 303       </h1>
 304       $text
 305       </div>
 306 END_NOTE;
 307     }
 308     echo "</div>";
 309     $this->write_navigation();
 310     $this->display_close();
 311   }
 312
 313   private function write_navigation() {
 314     echo "<div id='navigation'>";
 315     echo "<h1>";
 316     if($this->page > 1){
 317       $previous_page = $this->page - 1;
 318       echo "<a href='/notes/page/$previous_page'>prev</a>";
 319     }
 320     if($this->page < $this->number_of_pages) {
 321     $forward_page = $this->page + 1;
 322     echo " <a href='/notes/page/$forward_page'>next</a>";
 323     }
 324     echo "</h1>";
 325     echo "</div>";
 326   }
 327
 328 }
 329
 330
 331 class note extends cms {
 332
 333   private $id;
 334   private $comments_enabled = false;
 335   private $failed_captcha;
 336   public $url;
 337   public $title;
 338   public $year_posted;
 339   public $month_posted;
 340   public $day_posted;
 341   public $text;
 342   public $number_of_comments;
 343
 344   public function __construct() {
 345       $this->scripts = "
 346         <script type='text/javascript' src='/includes/syntax/scripts/shCore.js'></script>
 347         <script type='text/javascript' src='/includes/syntax/scripts/shAutoloader.js'></script>
 348         <link type='text/css' rel='stylesheet' href='/includes/syntax/styles/shCore.css'></script>
 349         <link type='text/css' rel='stylesheet' href='/includes/syntax/styles/shThemeDefault.css'></link>
 350         <script type='text/javascript'>
 351           function highlight() {
 352             SyntaxHighlighter.autoloader(
 353              'js /includes/syntax/scripts/shBrushJScript.js',
 354              'bash /includes/syntax/scripts/shBrushBash.js',
 355              'sql /includes/syntax/scripts/shBrushSql.js');
 356             SyntaxHighlighter.defaults['gutter'] = false;
 357             SyntaxHighlighter.defaults['toolbar'] = false;
 358             SyntaxHighlighter.all();
 359           }
 360         </script>
 361       ";
 362
 363     if (isset($_GET['comments'])) {
 364       $this->scripts += "
 365         <script type='text/javascript' src='http://www.google.com/recaptcha/api/js/recaptcha_ajax.js'></script>
 366         <script type='text/javascript' src='/includes/comment.js'></script>";
 367     }
 368     parent::__construct();
 369     if (isset($_GET['comments'])) {
 370       $this->comments_enabled = true;
 371     }
 372     $url = htmlspecialchars($_SERVER['REQUEST_URI']);
 373     if (isset($_GET['verify'])) {
 374       $url = substr($url, 0, (strlen($url)-6));
 375     }
 376     $this->url = $url;
 377     $sql = "SELECT title, date_posted, text, id
 378               FROM notes WHERE url = ?";
 379     $result = $this->query($sql, "s",
 380                               $_GET['note']);
 381     if ($result) {
 382       $entry = $result[0];
 383       $this->id = $entry["id"];
 384       $this->title = $entry["title"];
 385       $date_posted =  explode("-", $entry["date_posted"]);
 386       $this->year_posted = $date_posted[0];
 387       $this->month_posted = $date_posted[1];
 388       $datetime_posted = explode(' ', $date_posted[2]);
 389       $this->day_posted = $datetime_posted[0];
 390       $this->text = $entry["text"];
 391     } else {
 392       throw new notFound();
 393     }
 394     $sql = "SELECT COUNT(*) FROM comments
 395               WHERE note = $this->id";
 396     $result = $this->db->query($sql);
 397     $result = $result->fetch_array();
 398     $this->number_of_comments = $result[0];
 399     if (isset($_GET['verify'])) {
 400       $this->verify();
 401     }
 402   }
 403
 404   public function display() {
 405     $this->display_head();
 406     $this->display_note();
 407     if ($this->comments_enabled) {
 408       $this->display_comments();
 409       $this->display_comment_form();
 410     }
 411     $this->write_navigation();
 412     $this->display_close();
 413   }
 414
 415   private function verify() {
 416     if (!isset($_POST['captcha'])) {
 417       require_once('includes/recaptchalib.php');
 418       echo "<br>";
 419       $resp = recaptcha_check_answer ($this->recaptcha_privatekey,
 420                                       $_SERVER["REMOTE_ADDR"],
 421                                       $_POST["recaptcha_challenge_field"],
 422                                       $_POST["recaptcha_response_field"]);
 423       if (!$resp->is_valid) {
 424         $this->failed_captcha = true;
 425       }
 426     }
 427     if (isset($_POST['captcha']) || $resp->is_valid) {
 428       $sql = ("INSERT INTO comments (date_posted, author,
 429                   text, note)
 430                 VALUES(NOW(), ?, ?, ?)");
 431       $stmt = $this->db->prepare($sql);
 432       // Checks are needed here (no blank text,
 433       // and a default author needs to be set
 434       // for no-javascript users.
 435       $stmt->bind_param('sss',
 436                           htmlspecialchars($_POST['name']),
 437                           htmlspecialchars($_POST['text']),
 438                         $this->id);
 439       $stmt->execute();
 440     }
 441   }
 442
 443   private function display_note() {
 444     echo <<<END_OF_NOTE
 445     <div id='note'>
 446     <h1><span class='date'>$this->year_posted/$this->month_posted/$this->day_posted/</span>$this->title</h1>
 447     $this->text
 448     </div>
 449 END_OF_NOTE;
 450   }
 451
 452   private function write_navigation() {
 453     echo <<<END_OF_NAVIGATION
 454     <br><br><br><br>
 455     <div id='navigation'>
 456     <h1>
 457 END_OF_NAVIGATION;
 458     if (!$this->comments_enabled) {
 459       $this->display_comment_link();
 460     }
 461     echo <<<END_OF_NAVIGATION
 462     <a href="/notes/">back to notes/</a>
 463     </h1>
 464     </div>
 465 END_OF_NAVIGATION;
 466   }
 467
 468   private function display_comment_link() {
 469     if ($this->number_of_comments > 0) {
 470       $anchor_text = "comments($this->number_of_comments)/";
 471     } else {
 472       $anchor_text = "comment?";
 473     }
 474     if (substr($this->url, (strlen($this->url)-1), strlen($this->url)) == '/') {
 475       $url = $this->url . 'comments/';
 476     } else {
 477       $url = $this->url . '/comments/';
 478     }
 479     echo "<a id='comment_link' href='$url'>$anchor_text</a>";
 480   }
 481
 482   private function display_comments() {
 483     echo "<div id='comments'>";
 484     $sql= "SELECT date_posted, author, text
 485              FROM comments WHERE note = ?
 486              ORDER BY date_posted DESC";
 487     $result = $this->query($sql, 'd', $this->id);
 488     foreach ($result as $row => $entry) {
 489       $date_posted = $entry['date_posted'];
 490       $author = $entry['author'];
 491       $text = htmlspecialchars($entry['text']);
 492       $head = "<h3>$author</h3>";
 493       echo <<<END_OF_COMMENT
 494       <div class='comment'>
 495       $head
 496       $text
 497       </div>
 498 END_OF_COMMENT;
 499       }
 500     echo "</div>";
 501   }
 502
 503   private function display_comment_form() {
 504     $publickey = $this->recaptcha_publickey;
 505     echo <<<END_CAPTCHA_STYLE
 506 <script type="text/javascript">
 507 Recaptcha.create("$publickey",
 508    "recaptcha_div",
 509    {
 510      theme : 'custom',
 511      custom_theme_widget: 'recaptcha_widget',
 512      callback: Recaptcha.focus_response_field
 513    });
 514 </script>
 515 END_CAPTCHA_STYLE;
 516     require_once('includes/recaptchalib.php');
 517     $url = $this->url . "verify";
 518     echo "<form id='comment_form'  method='post' action='$url'>";
 519     echo <<<END_OF_FORM
 520     <div id="comment">
 521       <h3>comment:</h3>
 522       <textarea rows="10" cols="70" name="text" id="comment_text"></textarea>
 523       <h3>name:</h3>
 524       <input type=text name="name" id="comment_name">
 525
 526       <nowiki>
 527       <div id="recaptcha_widget">
 528         <br>
 529         <h3><b>what's this say</b>?</h3>
 530         <br>
 531           <div id="recaptcha_image"></div>
 532         <br><br><br>
 533         <span class="recaptcha_only_if_image"><br><br><br></span>
 534         <input type="text" id="recaptcha_response_field" name="recaptcha_response_field" />
 535         <br><br>
 536         <h3 class="recaptcha_only_if_audio"><b>enter the numbers you hear</b>:</h3>
 537         <span class="recaptcha_help">
 538           <a href="javascript:Recaptcha.reload()">another?</a> /
 539           <span class="recaptcha_only_if_image"><a href="javascript:Recaptcha.switch_type('audio')">audio?</a> /</span>
 540           <span class="recaptcha_only_if_audio"><a href="javascript:Recaptcha.switch_type('image')">image?</a></span><a href="javascript:Recaptcha.showhelp()">help?</a>
 541         </span>
 542       </div>
 543 END_OF_FORM;
 544     echo recaptcha_get_html($this->recaptcha_publickey);
 545     if ($this->failed_captcha) {
 546     echo <<<END_OF_ERRORS
 547         <div id="not_human">
 548           reCAPTCHA said you're not human, <br>
 549           try again?
 550         </div>
 551         <input id="submit" class="submit" type="submit" value="post comment">
 552         </form>
 553       </div>
 554 END_OF_ERRORS;
 555     } else {
 556       echo <<<END_OF_ERRORS
 557         <div id="not_human">
 558           reCAPTCHA said you're not human, <br>
 559           try again?
 560         </div>
 561         <div id="blank_comment">
 562           but you didn't write anything! <br>
 563         </div>
 564 END_OF_ERRORS;
 565     }
 566     echo <<<END_OF_FORM
 567       <input id="submit" class="submit" type="submit" value="post comment">
 568       </form>
 569       </div>
 570 END_OF_FORM;
 571   }
 572 }
 573
 574
 575 class archive extends cms {
 576
 577   public function __construct() {
 578     parent::__construct();
 579   }
 580
 581   private function check_exists() {
 582     $sql = "SELECT COUNT(*) FROM notes
 583               WHERE url = ?";
 584     $results = $this->query($sql, "s", $_GET['note']);
 585     if ($results[0]["COUNT(*)"] != 1) {
 586       $this->not_found();
 587     }
 588   }
 589
 590   public function display() {
 591     $this->display_head();
 592     switch (true) {
 593       case (isset($_GET['year']) && !isset($_GET['month'])
 594                 && !isset($_GET['day'])):
 595         $sql = "SELECT title, url, date_posted, text
 596                   FROM notes WHERE YEAR(date_posted) = ?
 597                 ORDER BY date_posted DESC";
 598         $result = $this->query($sql, "d",
 599                                   $_GET['year']);
 600         break;
 601       case (isset($_GET['year']) && isset($_GET['month'])
 602                && !isset($_GET['day'])):
 603         $sql = "SELECT title, url, date_posted, text
 604                   FROM notes WHERE YEAR(date_posted) = ?
 605                 AND MONTH(date_posted) = ?
 606                 ORDER BY date_posted DESC";
 607         $result = $this->query($sql, "dd",
 608                                   $_GET['year'], $_GET['month']);
 609         break;
 610       case (isset($_GET['year']) && isset($_GET['month'])
 611               && isset($_GET['day'])):
 612         $sql = "SELECT title, url, date_posted, text
 613                   FROM notes WHERE YEAR(date_posted) = ?
 614                 AND MONTH(date_posted) = ?
 615                 AND DAY(date_posted) = ?
 616                 ORDER BY date_posted DESC";
 617         $result = $this->query($sql, "ddd",
 618                                 $_GET['year'], $_GET['month'],
 619                                 $_GET['day']);
 620         break;
 621     }
 622     if (count($result) >= 1) {
 623       echo "<div id='notes'>";
 624       foreach ($result as $row => $entry) {
 625         $title = $entry['title'];
 626         $url = '/note/' . $entry['url'];
 627         $date_posted =  explode("-", $entry['date_posted']);
 628         $year_posted = $date_posted[0];
 629         $month_posted = $date_posted[1];
 630         $datetime_posted = explode(' ', $date_posted[2]);
 631         $day_posted = $datetime_posted[0];
 632         echo "<div class='note'>";
 633         echo "<h1><span class='date'>";
 634         echo "$year_posted/$month_posted/$day_posted/";
 635         echo "</span><a href='$url'>$title</a></h1>";
 636         echo $entry['text'];
 637         echo "</div>";
 638       }
 639       echo "</div>";
 640       $this->write_navigation();
 641     } else {
 642       echo "<br>";
 643       echo "<h1>sorry, nothing here</h2>";
 644       echo "<pre>Empty set (0.00 sec)</pre>";
 645     }
 646     $this->display_close();
 647   }
 648
 649   private function write_navigation() {
 650     echo "<br>";
 651     echo "<div id='navigation'>";
 652     // fill me in!
 653     echo "</div>";
 654   }
 655
 656 }
 657
 658
 659 class rss extends cms {
 660   public function display() {
 661     $result = $this->db->query("SELECT date_posted, title, text, url
 662                                           FROM notes ORDER BY date_posted DESC
 663                                           LIMIT 5");
 664           echo <<<END_OF_ENTRY
 665           <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
 666       <channel>
 667             <title>dylanstestserver.com/notes/rss</title>
 668                 <link>http://dylanstestserver.com/notes</link>
 669                 <description>dylanstestserver.com/notes/rss</description>
 670                 <atom:link href="http://dylanstestserver.com/notes/rss" rel="self" type="application/rss+xml" />
 671 END_OF_ENTRY;
 672         while ($entry = $result->fetch_object()) {
 673           $title = $entry->title;
 674           $date_posted = $entry->date_posted;
 675           $url = "http://dylanstestserver.com/note/" . $entry->url;
 676           $text = $entry->text;
 677           $text = strip_tags($text);
 678           $end_of_first_sentence = strpos($text, '.');
 679           if ($end_of_first_sentence) {
 680             $end_of_second_sentence = strpos($text, '.', ($end_of_first_sentence + 1));
 681                 if ($end_of_second_sentence) {
 682                   $description = substr($text, '0', ($end_of_second_sentence + 1));
 683                 } else {
 684                   $description = substr($text, '0', ($end_of_first_sentence + 1));
 685                 }
 686           }
 687           echo <<<END_OF_ENTRY
 688             <item>
 689                   <title>$title</title>
 690                   <link>$url</link>
 691                   <guid>$url</guid>
 692                   <description>$description</description>
 693             </item>
 694 END_OF_ENTRY;
 695         }
 696       echo "</channel>";
 697       echo "</rss>";
 698
 699   }
 700 }
 701
 702
 703 class notFound extends Exception {
 704
 705     public function __construct() {
 706       header('HTTP/1.0 404 Not Found');
 707       ob_end_clean();
 708       include('404.php');
 709       exit();
 710     }
 711
 712 }
 713
 714
 715 class captcha extends cms {
 716
 717     public function display() {
 718       $challenge = $_GET['challenge'];
 719       $response = $_GET['response'];
 720       $remoteip = $_SERVER['REMOTE_ADDR'];
 721       $curl = curl_init('http://api-verify.recaptcha.net/verify?');
 722       curl_setopt ($curl, CURLOPT_POST, 4);
 723       curl_setopt ($curl, CURLOPT_POSTFIELDS, "privatekey=$this->recaptcha_privatekey&remoteip=$remoteip&challenge=$challenge&response=$response");
 724       $result = curl_exec ($curl);
 725       curl_close ($curl);
 726     }
 727
 728 }
 729
 730
 731 ## now actually do something:
 732 switch (cms::determine_type()) {
 733   case 'index':
 734     $index = new index();
 735     $index->display();
 736     break;
 737   case 'project':
 738     $project = new project();
 739     $project->display();
 740     break;
 741   case 'note':
 742     $note = new note;
 743     $note->display();
 744     break;
 745   case 'page':
 746     $page = new page;
 747     $page->display();
 748     break;
 749   case "rss":
 750     $rss = new rss();
 751         $rss->display();
 752   case 'archive':
 753     $archive = new archive;
 754         $archive->display();
 755         break;
 756   case "captcha":
 757     $captcha = new captcha;
 758     $captcha->display();
 759     break;
 760 }
 761
 762 ?>