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