feeds.php

<?
/*-- Feed Start Class ----------------------------------*/
/*------------------------------------------------------*/
/* Simplified version of script_start, used for the     */
/* sitewide RSS system.                                 */
/*------------------------------------------------------*/
/********************************************************/

// Let's prevent people from clearing feeds
if (isset($_GET['clearcache'])) {
  unset($_GET['clearcache']);
}

require_once('classes/config.php'); // The config contains all site-wide configuration information as well as memcached rules

require_once(SERVER_ROOT.'/classes/misc.class.php'); // Require the misc class
require_once(SERVER_ROOT.'/classes/cache.class.php'); // Require the caching class
require_once(SERVER_ROOT.'/classes/feed.class.php'); // Require the feeds class
$Cache = new Cache(MEMCACHED_SERVERS); // Load the caching class
$Feed = new FEED; // Load the time class

function check_perms() {
  return false;
}

function is_number($Str) {
  if ($Str < 0) {
    return false;
  }
  // We're converting input to an int, then string, and comparing to the original
  return ($Str == strval(intval($Str)));
}

function display_str($Str) {
  if ($Str != '') {
    $Str = make_utf8($Str);
    $Str = mb_convert_encoding($Str, 'HTML-ENTITIES', 'UTF-8');
    $Str = preg_replace("/&(?![A-Za-z]{0,4}\w{2,3};|#[0-9]{2,5};)/m", '&amp;', $Str);

    $Replace = array(
      "'",'"',"<",">",
      '&#128;','&#130;','&#131;','&#132;','&#133;','&#134;','&#135;','&#136;',
      '&#137;','&#138;','&#139;','&#140;','&#142;','&#145;','&#146;','&#147;',
      '&#148;','&#149;','&#150;','&#151;','&#152;','&#153;','&#154;','&#155;',
      '&#156;','&#158;','&#159;'
    );

    $With = array(
      '&#39;','&quot;','&lt;','&gt;',
      '&#8364;','&#8218;','&#402;','&#8222;','&#8230;','&#8224;','&#8225;','&#710;',
      '&#8240;','&#352;','&#8249;','&#338;','&#381;','&#8216;','&#8217;','&#8220;',
      '&#8221;','&#8226;','&#8211;','&#8212;','&#732;','&#8482;','&#353;','&#8250;',
      '&#339;','&#382;','&#376;'
    );

    $Str = str_replace($Replace, $With, $Str);
  }
  return $Str;
}

function make_utf8($Str) {
  if ($Str != '') {
    if (is_utf8($Str)) {
      $Encoding = 'UTF-8';
    }
    if (empty($Encoding)) {
      $Encoding = mb_detect_encoding($Str, 'UTF-8, ISO-8859-1');
    }
    if (empty($Encoding)) {
      $Encoding = 'ISO-8859-1';
    }
    if ($Encoding == 'UTF-8') {
      return $Str;
    } else {
      return @mb_convert_encoding($Str, 'UTF-8', $Encoding);
    }
  }
}

function is_utf8($Str) {
  return preg_match('%^(?:
    [\x09\x0A\x0D\x20-\x7E]             // ASCII
    | [\xC2-\xDF][\x80-\xBF]            // non-overlong 2-byte
    | \xE0[\xA0-\xBF][\x80-\xBF]        // excluding overlongs
    | [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} // straight 3-byte
    | \xED[\x80-\x9F][\x80-\xBF]        // excluding surrogates
    | \xF0[\x90-\xBF][\x80-\xBF]{2}     // planes 1-3
    | [\xF1-\xF3][\x80-\xBF]{3}         // planes 4-15
    | \xF4[\x80-\x8F][\x80-\xBF]{2}     // plane 16
    )*$%xs', $Str
  );
}

function display_array($Array, $Escape = []) {
  foreach ($Array as $Key => $Val) {
    if ((!is_array($Escape) && $Escape == true) || !in_array($Key, $Escape)) {
      $Array[$Key] = display_str($Val);
    }
  }
  return $Array;
}

/**
 * Print the site's URL including the appropriate URI scheme, including the trailing slash
 */
function site_url() {
  return 'https://' . SITE_DOMAIN . '/';
}

header('Cache-Control: no-cache, must-revalidate, post-check=0, pre-check=0');
header('Pragma:');
header('Expires: '.date('D, d M Y H:i:s', time() + (2 * 60 * 60)).' GMT');
header('Last-Modified: '.date('D, d M Y H:i:s').' GMT');

require(SERVER_ROOT.'/sections/feeds/index.php');