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     $this->display_close();
 361   }
 362
 363   private function verify() {
 364     var_dump($_POST['captcha']);
 365     var_dump(isset($_POST['captcha']));
 366     var_dump(isset($_POST['captcha']) || false);
 367     if (!isset($_POST['captcha'])) {
 368       require_once('includes/recaptchalib.php');
 369           echo "<br>";
 370       $resp = recaptcha_check_answer ($this->recaptcha_privatekey,
 371                                                                       $_SERVER["REMOTE_ADDR"],
 372                                                                       $_POST["recaptcha_challenge_field"],
 373                                                                       $_POST["recaptcha_response_field"]);
 374       if (!$resp->is_valid) {
 375             $this->failed_captcha = true;
 376           }
 377     }
 378         if (isset($_POST['captcha']) || $resp->is_valid) {
 379           $sql = ("INSERT INTO comments (date_posted, author,
 380                                 email, text, note)
 381                                 VALUES(NOW(), ?, ?, ?, ?)");
 382           $stmt = $this->db->prepare($sql);
 383           // Checks are needed here (no blank text,
 384           // and a default author / email need to be set
 385           // for no-javascript users.
 386           $stmt->bind_param('ssss',
 387                                                 htmlspecialchars($_POST['name']),
 388                                                 htmlspecialchars($_POST['email']),
 389                                                 htmlspecialchars($_POST['text']),
 390                                                 $this->id);
 391           $stmt->execute();
 392         }
 393   }
 394
 395   private function display_note() {
 396         echo "<div id=\"note\">";
 397     echo "<h2><span style=\"color:grey;\">$this->year_posted/$this->month_posted/$this->day_posted/</span>$this->title</h2>";
 398         echo $this->text;
 399   }
 400
 401   private function write_navigation() {
 402     echo <<<END_OF_NAVIGATION
 403         <br>
 404     <div id=\"navigation\">
 405     <h2>
 406 END_OF_NAVIGATION;
 407     if ($this->failed_captcha) {
 408       echo "<span style=\"color:red;border:1px solid black;padding:15px;\">sorry, reCAPTCHA said you're not human.</span><br><br><br>";
 409         }
 410         if (!$this->comments_enabled) {
 411           $this->display_comment_link();
 412         }
 413     echo <<<END_OF_NAVIGATION
 414         <a href="/notes/">notes</a>/
 415     </h2>
 416     </div>
 417 END_OF_NAVIGATION;
 418   }
 419
 420   private function display_comment_link() {
 421     if ($this->number_of_comments > 0) {
 422           $anchor_text = "comments ($this->number_of_comments)";
 423         } else {
 424           $anchor_text = "comment?";
 425         }
 426         if (substr($this->url, (strlen($this->url)-1), strlen($this->url)) == '/') {
 427       $url = $this->url . 'comments/';
 428         } else {
 429       $url = $this->url . '/comments/';
 430         }
 431     echo "<a id=\"comment_link\" href=\"$url\">$anchor_text</a>";
 432   }
 433
 434   private function display_comments() {
 435     echo "<div id=\"comments\">";
 436         $sql= "SELECT date_posted, author, email, text
 437                  FROM comments WHERE note = ?
 438                          ORDER BY date_posted DESC";
 439     $result = $this->query($sql, "d", $this->id);
 440         foreach ($result as $row => $entry) {
 441           $date_posted = $entry['date_posted'];
 442           $author = $entry['author'];
 443           $email = $entry['email'];
 444           $text = htmlspecialchars($entry['text']);
 445           echo <<<END_OF_COMMENT
 446           <h3><a href="mailto:$email">$author</a></h3>
 447           $text
 448           <br>
 449           <br>
 450 END_OF_COMMENT;
 451           }
 452         echo "</div>";
 453   }
 454
 455   private function display_comment_form() {
 456     $publickey = $this->recaptcha_publickey;
 457     echo <<<END_CAPTCHA_STYLE
 458 <script type="text/javascript">
 459 Recaptcha.create("$publickey",
 460    "recaptcha_div",
 461    {
 462      theme : 'custom',
 463      custom_theme_widget: 'recaptcha_widget',
 464      callback: Recaptcha.focus_response_field
 465    });
 466 </script>
 467 END_CAPTCHA_STYLE;
 468     require_once('includes/recaptchalib.php');
 469         // Trailing slash is necessary for reloads to work
 470     $url = $this->url . "verify/";
 471         echo "<form id=\"comment_form\"  method=\"post\" action=\"$url\">";
 472         echo <<<END_OF_FORM
 473 <div id="comment">
 474
 475 <div id="recaptcha_div">
 476 <br>
 477 <h3>comment:</h3>
 478 <textarea rows="10" cols="70" name="text" id="comment_text"></textarea>
 479 <h3>name:</h3>
 480 <input type=text name="name" id="comment_name">
 481 <h3>email:</h3>
 482 <input type=text name="email" id="comment_email"><br>
 483 <nowiki>
 484
 485 <div id="recaptcha_widget">
 486 <h3 class="recaptcha_only_if_image"><b>what's this say</b>?</h3>
 487 <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>
 488   <input type="text" id="recaptcha_response_field" name="recaptcha_response_field" />
 489 <br><br>
 490 <div style="float:right;position:relative;width:100px;"><div id="recaptcha_image"></div></div>
 491 <br><br><br><br>
 492 </div>
 493 END_OF_FORM;
 494     echo recaptcha_get_html($this->recaptcha_publickey);
 495     echo <<<END_OF_FORM
 496 </div>
 497
 498 <input class="submit" type="submit" value="comment">
 499 </form>
 500 </div>
 501 END_OF_FORM;
 502   }
 503 }
 504
 505
 506 class archive extends cms {
 507
 508   public function __construct() {
 509     parent::__construct();
 510   }
 511
 512   private function check_exists() {
 513     $sql = "SELECT COUNT(*) FROM notes
 514                           WHERE url = ?";
 515         $results = $this->query($sql, "s", $_GET['note']);
 516         if ($results[0]["COUNT(*)"] != 1) {
 517           $this->not_found();
 518         }
 519   }
 520
 521   public function display() {
 522     // this really needs its own pagination...
 523         // there should be a class for that.
 524         $this->display_head();
 525         switch (true) {
 526           case (isset($_GET['year']) && !isset($_GET['month'])
 527                           && !isset($_GET['day'])):
 528         $sql = "SELECT title, url, date_posted, text
 529                                 FROM notes WHERE YEAR(date_posted) = ?
 530                                 ORDER BY date_posted DESC";
 531                 $result = $this->query($sql, "d",
 532                                                                 $_GET['year']);
 533             break;
 534           case (isset($_GET['year']) && isset($_GET['month'])
 535                           && !isset($_GET['day'])):
 536         $sql = "SELECT title, url, date_posted, text
 537                                 FROM notes WHERE YEAR(date_posted) = ?
 538                                 AND MONTH(date_posted) = ?
 539                                 ORDER BY date_posted DESC";
 540                 $result = $this->query($sql, "dd",
 541                                                                 $_GET['year'], $_GET['month']);
 542             break;
 543           case (isset($_GET['year']) && isset($_GET['month'])
 544                   && isset($_GET['day'])):
 545         $sql = "SELECT title, url, date_posted, text
 546                                 FROM notes WHERE YEAR(date_posted) = ?
 547                                 AND MONTH(date_posted) = ?
 548                                 AND DAY(date_posted) = ?
 549                                 ORDER BY date_posted DESC";
 550                 $result = $this->query($sql, "ddd",
 551                                                                 $_GET['year'], $_GET['month'],
 552                                                                 $_GET['day']);
 553             break;
 554         }
 555         if (count($result) >= 1) {
 556           echo "<div id=\"notes\">";
 557           foreach ($result as $row => $entry) {
 558             $title = $entry['title'];
 559             $url = '/note/' . $entry['url'];
 560             $date_posted =  explode("-", $entry['date_posted']);
 561             $year_posted = $date_posted[0];
 562             $month_posted = $date_posted[1];
 563             $datetime_posted = explode(' ', $date_posted[2]);
 564             $day_posted = $datetime_posted[0];
 565             echo "<div class=\"note\">";
 566         echo "<h2><span style=\"color:grey;\">$year_posted/$month_posted/$day_posted/</span><a href=\"$url\">$title</a></h2>";
 567             echo $entry['text'];
 568             echo "</div>";
 569           }
 570           echo "</div>";
 571           $this->write_navigation();
 572         } else {
 573           echo "<br>";
 574           echo "<h2 style=\"font-family:sans-serif;\">sorry, nothing here</h2>";
 575           echo "<pre>Empty set (0.00 sec)</pre>";
 576         }
 577     $this->display_close();
 578   }
 579
 580   private function write_navigation() {
 581         echo "<br>";
 582     echo "<div id=\"navigation\">";
 583     echo "<h2>";
 584         // fill me in!
 585     echo "</h2>";
 586     echo "</div>";
 587   }
 588 }
 589
 590
 591 class notFound extends Exception {
 592         public function __construct() {
 593       header("HTTP/1.0 404 Not Found");
 594           ob_end_clean();
 595           include("404.php");
 596           exit();
 597         }
 598 }
 599
 600 class captcha extends cms {
 601         public function display() {
 602           $challenge = $_GET['challenge'];
 603           $response = $_GET['response'];
 604           $remoteip = $_SERVER['REMOTE_ADDR'];
 605       $curl = curl_init('http://api-verify.recaptcha.net/verify?');
 606       curl_setopt ($curl, CURLOPT_POST, 4);
 607       curl_setopt ($curl, CURLOPT_POSTFIELDS, "privatekey=$this->recaptcha_privatekey&remoteip=$remoteip&challenge=$challenge&response=$response");
 608           $result = curl_exec ($curl);
 609           curl_close ($curl);
 610         }
 611 }
 612
 613 ## now actually do something:
 614 switch (cms::determine_type()) {
 615   case "index":
 616     $index = new index();
 617         $index->display();
 618         break;
 619   case "project":
 620     $project = new project();
 621         $project->display();
 622         break;
 623   case "note":
 624     if (isset($_GET['comments'])) {
 625       $note = new note($comments_enabled = true);
 626         } else {
 627       $note = new note;
 628         }
 629         $note->display();
 630         break;
 631   case "page":
 632     $page = new page;
 633         $page->display();
 634         break;
 635   case "archive":
 636     $archive = new archive;
 637         $archive->display();
 638         break;
 639   case "captcha":
 640     $captcha = new captcha;
 641         $captcha->display();
 642         break;
 643 }
 644
 645 ?>