index.php

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