lib/class.page.php

   1 <?php
   2 /**
   3  * Class to represent the XHTML page, do header+footer and display errors in a XHTML-safe way
   4  *
   5  * @author Anthony Parsons (xmpp:ant@specialops.ath.cx)
   6  * @license file://../COPYING
   7  * @version $Id$
   8  */
   9 class page
  10 {
  11         public $sitename = 'Special Ops';
  12         public $title;
  13         public $lang;
  14         public $nav = array();
  15
  16         private $errors = array();
  17
  18         const Pageheader = 1;
  19         const Userheader = 2;
  20         public $headers = 0;
  21
  22         function __construct()
  23         {
  24                 set_error_handler(array($this, 'error_handler'));
  25
  26                 if ( strpos($_SERVER['PHP_SELF'], 'index') === false ) {
  27                         $this->nav['Board List'] = '.';
  28                 }
  29         }
  30
  31         public function pageheader()
  32         {
  33                 global $user, $DB;
  34
  35                 switch ( $user->theme ) {
  36                         case -1:
  37                                 $css = array('default', 'Default Theme'); break;
  38                         case 0:
  39                                 $css = array('u'.$user->userid, 'User Theme'); break;
  40                         default:
  41                                 $css = $DB->query('SELECT `css_file`, `theme_name` FROM `themes` WHERE `themeid` = '.$user->theme)->fetch_row();
  42                 }
  43
  44                 if ( isset($_POST['login'], $_POST['u'], $_POST['p']) && ! ($user instanceof authuser) ) {
  45                         header('HTTP/1.1 400 Bad Request');
  46                 }
  47
  48                 header('Content-Type: application/xhtml+xml; charset=UTF-8');
  49                 echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"  "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">',"\n",
  50                 '<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-GB">',"\n",
  51                 "<head>\n",
  52                 '       <title>',( $this->title ? $this->title.' :: '.SITE_NAME : SITE_NAME ),"</title>\n",
  53                 '       <link rel="stylesheet" type="text/css" href="css/',$css[0],'.css" title="',$css[1],'"/>',"\n",
  54                 "</head>\n\n",
  55                 '<body id="so2-',basename($_SERVER['SCRIPT_NAME'], '.php'),"\">\n",
  56                 '<h1>',( $this->title ? $this->title : SITE_NAME ),"</h1>\n";
  57
  58                 if ( isset($_POST['logout']) && $user instanceof anonuser ) {
  59                         echo '<p class="notice">You are now logged out.</p>',"\n";
  60                 } elseif ( isset($_POST['login'], $_POST['u'], $_POST['p']) ) {
  61                         if ( $user instanceof authuser ) {
  62                                 $DB->query('UPDATE `users` SET `last_login_ip` = INET_ATON("'.$_SERVER['REMOTE_ADDR'].'")
  63                                                         WHERE `userid` = @userid');
  64                                 echo '<p class="notice">You are now logged in.</p>',"\n";
  65                                 if ( $user instanceof authuser && $user->check_nullpass() ) {
  66                                         echo '<p class="notice">Your password has been reset by an admin. You should <a href="passwd">set a new one</a> ASAP.</p>';
  67                                 }
  68                         } else {
  69                                 echo '<p class="error">Invalid password or username.</p>',"\n";
  70                         }
  71                 }
  72
  73                 if ( $this->nav ) {
  74                         echo '<ul id="navbar" class="nl">',"\n";
  75                         foreach ( $this->nav as $title => $url ) {
  76                                 echo "\t",'<li><a href="',$url,'">',$title,"</a></li>\n";
  77                         }
  78                         echo "</ul>\n\n";
  79                 }
  80
  81                 $this->headers |= self::Pageheader;
  82         }
  83
  84         private function finish_headers()
  85         {
  86                 if ( ! ($this->headers & self::Pageheader) ) {
  87                         $this->pageheader();
  88                 }
  89                 if ( ! ($this->headers & self::Userheader) ) {
  90                         $GLOBALS['user']->userheader();
  91                 }
  92         }
  93
  94         public function errorfooter($type = 'login')
  95         {
  96                 if ( !headers_sent() ) {
  97                         switch ( $type ) {
  98                                 case 'level':
  99                                         header('HTTP/1.1 403 Forbidden');
 100                                         break;
 101                                 default:
 102                                         header('HTTP/1.1 400 Bad Request');
 103                         }
 104                 }
 105
 106                 $this->finish_headers();
 107
 108                 $messages = array(
 109                         'level'         => 'You can\'t do this.',
 110                         'login'         => 'You must be logged in to do this.',
 111                         'logout'        => 'You must be logged out to do this.',
 112                         'boardid'       => 'Invalid board ID given.',
 113                         'topicid'       => 'Invalid topic ID given.',
 114                         'messageid'     => 'Invalid message ID given.',
 115                         'userid'        => 'Invalid user ID given.',
 116                         'runtime'       => 'A serious error has occured in the page. If this happens again and you don\'t think it\'s your fault, '.
 117                                                         'let the site owner know and they\'ll probably fix it. Unless the site owner is Aquatakat.',
 118                         'request'       => 'Invalid request.'
 119                 );
 120
 121                 echo '<p class="error">',$messages[$type],'</p>';
 122                 $this->pagefooter();
 123         }
 124
 125         public function pagefooter()
 126         {
 127                 $this->finish_headers();
 128
 129                 echo
 130                         "\n\n",
 131                         '<form id="footer" action="',
 132                                 $_SERVER['PHP_SELF'],'?',htmlspecialchars($_SERVER['QUERY_STRING']),'" method="post">',"\n",
 133                         '<fieldset><legend>Session:</legend>',"\n";
 134
 135                 if ( $GLOBALS['user'] instanceof authuser ) {
 136                         echo
 137                         '       <button type="submit" name="logout" onclick="return confirm(\'o rly?\');">Log Out</button>';
 138                 } else {
 139                         echo
 140                         '       <label>Username: <input type="text" name="u"/></label>',"\n",
 141                         '       <label>Password: <input type="password" name="p"/></label>',"\n",
 142                         '       <button type="submit" name="login">Log In</button>';
 143                 }
 144
 145                 echo "\n</fieldset>\n";
 146
 147                 if ( defined('DEVELOPER') && count($this->errors) ) {
 148                         echo "<h2>Errors on page:</h2>\n<dl>\n";
 149                         foreach ( $this->errors as $e ) {
 150                                 vprintf('<dt>File %s at line <var>%s</var></dt><dd>errcode <var>%s</var>: <tt>%s</tt></dd>', $e);
 151                         }
 152                         echo "</dl>\n";
 153                 }
 154
 155                 /* *wanks* */
 156                 echo
 157                 '<p><a href="http://specialops.ath.cx">Special Ops Two</a>: <a href="COPYING" rel="copyright">© 2004-2006</a> Ant P | ',
 158                         ( defined('DEVELOPER') ? $GLOBALS['DB']->c.' queries' : count($this->errors).' errors' ),
 159                         sprintf(" |\n%.3F", microtime(1) - CLOCK),'s | <a href="http://specialops.ath.cx/repos/so2/">',SO2VER,"</a></p>\n</form>\n",
 160                 '</body></html>';
 161
 162                 exit;
 163         }
 164
 165         public function error_handler($number, $string, $file, $line)
 166         {
 167                 // If errors are being returned as unencoded text then try to fix them before they fuck the XHTML
 168                 if ( ! ini_get('html_errors') ) {
 169                         $string = new message($string);
 170                         $string = $string->output;
 171                 }
 172                 $this->errors[] = array($file, $line, $number, $string);
 173         }
 174 }
 175 ?>