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<?php
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// $Id: accessibility.php, v2.1 2008/03/04 15:15:00 jaburns Exp $
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/**
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* @file
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* Part of accessibility.module
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* Can be used as stand alone script
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* Depends on 'browser.inc' -> list of know handheld devices
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*
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* @functions
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* is_mobi() returns TRUE or FALSE dependant on the device browsing the site
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* content_type() returns integer that should be linked to $mime['types']
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*
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* @author Jamie Burns <http://www.skiffie.com/>
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* @link http://www.skiffie.com/
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*/
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//~ For PHP < 5
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if (!function_exists('stripos')) {
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function stripos($haystack, $needle, $offset=0) {
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return strpos(strtolower($haystack), strtolower($needle), $offset);
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}
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}
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//~ $mime['VARS'] must be in order
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global $mime;
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$mime['types'] = array (
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'none',
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'xhtml',
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'html',
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'mhtml',
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'wml',
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'chtml'
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);
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$mime['xml'] = array (1,3,4);
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$mime['mobis'] = array (3,4,5);
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$mime['mhtml'] = 3;
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$mime['wml'] = 4;
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$mime['chtml'] = 5;
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$mime['nodes'] = 1;
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$mime['theme'] = array(
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0 => 'web2',
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1 => 'web2',
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2 => 'web2',
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3 => 'mobi',
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4 => 'wap',
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5 => 'mobi'
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);
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$mime['desc'] = array (
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'No Override',
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'XHTML',
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'HTML',
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'XHTML MP',
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'WML',
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'HTML BASIC'
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);
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$mime['content'] = array (
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'text/html',
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'application/xhtml+xml',
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'text/html',
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'application/vnd.wap.xhtml+xml',
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'text/vnd.wap.wml',
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'text/html'
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);
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$mime['dtds'] = array (
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'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">'."\n",
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'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">'."\n",
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'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">'."\n",
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'<!DOCTYPE html PUBLIC "-//WAPFORUM//DTD XHTML Mobile 1.2//EN"
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"http://www.openmobilealliance.org/tech/DTD/xhtml-mobile11.dtd"> '."\n",
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'<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN" "http://www.wapforum.org/DTD/wml_1.1.xml">',
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'<!DOCTYPE html PUBLIC "-//W3C//DTD Compact HTML 1.0 Draft//EN">'."\n"
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);
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//~ Some extra user_agent strings to check for
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global $imode;
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$imode = array ('doco', 'j-pho', 'up.b', 'ddip', 'port');
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global $extra;
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$extra = array ('MIDP', 'symbian', 'phone', 'palm', 'ipaq', 'Googlebot-Mobile');
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global $xml;
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$xml = '<?xml version="1.0" encoding="utf-8"?>'."\n";
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global $dir;
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$dir = dirname(__FILE__) .'/browser.inc';
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global $fix;
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$fix = (isset($fix)) ? $fix : FALSE;
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//~ Extra function to catch additional mobi parameters: returns > 0 if TRUE
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function extra(&$extra) {
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$count = 0;
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if (is_array($extra)) {
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foreach($extra as $findme) {
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if ( @stripos(@$_SERVER['HTTP_USER_AGENT'], $findme) !== FALSE ) {
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$count++;
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}
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}
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} else {
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if ( @stripos(@$_SERVER['HTTP_USER_AGENT'], $extra) !== FALSE ) {
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$count++;
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}
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}
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return $count;
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}
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//~ Is the device a mobile ?
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function is_mobi($override = FALSE) {
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global $imode, $extra, $dir;
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$browsers = file( $dir );
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foreach ($browsers as $dev) {
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$browserlist [] = trim($dev);
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}
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if ($override == TRUE) {
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return $override;
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} elseif (
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@in_array(strtolower(substr(trim(@$_SERVER['HTTP_USER_AGENT']),0,4)), $browserlist) OR
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@in_array(strtolower(substr(trim(@$_SERVER['HTTP_USER_AGENT']),0,4)), $imode) OR
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extra($extra) > 0
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) {
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return TRUE;
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} else {
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return FALSE;
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}
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}
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//~ Establish best suited content type
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function content_type () {
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global $mime, $accessibility;
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$is_mobi = (isset($accessibility['is_mobi'])) ? $accessibility['is_mobi'] : FALSE;
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$accept = array();
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foreach ($mime['types'] as $lang => $val){
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$accept[$val] = $mime['content'][$lang];
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}
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//~ remove unwanted elements
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$unused = array_shift($accept);
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$unused = array_pop($accept);
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$c = array();
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if ( !isset($_SERVER["HTTP_ACCEPT"]) OR empty($_SERVER["HTTP_ACCEPT"]) ) {
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$c['html'] = 1;
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} else {
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foreach ($accept as $mime_lang => $mime_type) {
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$esc_type = '/'. str_replace( array ('/','.','+'), array('\/','\.','\+'), $mime_type) .";q=0(\.[1-9]+)/i";
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$c[$mime_lang] = 1;
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if ( @stristr(@$_SERVER["HTTP_ACCEPT"], $mime_type) ) {
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$c[$mime_lang] = $c[$mime_lang] + 1;
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if (preg_match($esc_type, @$_SERVER["HTTP_ACCEPT"], $matches)) {
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$c[$mime_lang] = $c[$mime_lang] - (float)$matches[1];
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} // end if pregmatch
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} // end if stristr
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} // end foreach accept
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}
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arsort ($c, SORT_NUMERIC);
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if ( array_sum($c) == count($c) ){
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unset ( $c );
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$c['html'] = 1;
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} // end array_sum
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$max = max($c);
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foreach ($c as $type => $val) {
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if ($val != $max) { unset ( $c[$type] ); }
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} // end foreach
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if ( array_key_exists('xhtml', $c) ) { unset ( $c ); $c['xhtml'] = 1; }
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if ( array_key_exists('html', $c) ) { unset ( $c ); $c['html'] = 1;}
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if ( array_key_exists('html', $c) AND $is_mobi === TRUE ) { unset ( $c ); $c['chtml'] = 1;}
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if ( array_key_exists('wml', $c) ) { unset ( $c ); $c['wml'] = 1; }
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if ( array_key_exists('mhtml', $c) ) { unset ( $c ); $c['mhtml'] = 1; }
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if ( stristr(@$_SERVER["HTTP_USER_AGENT"], 'W3C_Validator') ) { unset ( $c ); $c['xhtml'] = 1; }
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return array_search(key($c), $mime['types']);
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}
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//~ Make code WML compatible
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function wmlfix($buffer) {
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global $fix;
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$buffer = str_replace('Submitted by', '<p>Submitted by', $buffer);
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$buffer = str_replace('<!--np-->', '<p>', $buffer);
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$buffer = preg_replace('/<a href="\/taxonomy(.*?)class="feed-icon">(.*?)<\/a>/ims', '', $buffer);
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$buffer = preg_replace('/<a id="comment">(.*?)<\/a>/ims', '', $buffer);
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$buffer = preg_replace('/<span class="terms">(.*?)<\/span>/ims', '$1<br /><br />', $buffer);
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$buffer = preg_replace('/<div class="service-label">(.*?)<\/div>/ims', '', $buffer);
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$buffer = preg_replace('/<div class="service-links">(.*?)<\/div>/ims', '', $buffer);
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$buffer = str_replace('<div class="pager">', '<p>', $buffer);
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$buffer = str_replace('</a><', '</a> <', $buffer);
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$buffer = preg_replace('#<div(.*?)>#', '', $buffer);
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$buffer = str_replace('</div>', ' ', $buffer);
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$buffer = str_replace('<hr />', '', $buffer);
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$buffer = preg_replace('# class="(.*?)"#', '', $buffer);
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$buffer = preg_replace('# rel="(.*?)"#', '', $buffer);
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$buffer = preg_replace('#p id="(.*?)"#', 'p', $buffer);
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$buffer = preg_replace('#p class="(.*?)"#', 'p', $buffer);
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$buffer = preg_replace('# style="(.*?)"#', '', $buffer);
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$buffer = preg_replace('# title="(.*?)"#', '', $buffer);
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$buffer = preg_replace('/<a href="\/comment(.*?)<\/a>/ims', '', $buffer);
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$buffer = preg_replace('/<a href="?q=comment(.*?)<\/a>/ims', '', $buffer);
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$buffer = preg_replace('#<h(.*?)>#', '<p><big>', $buffer);
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$buffer = preg_replace('#</h(.*?)>#', "</big></p>\n", $buffer);
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$buffer = preg_replace('#<img (.*?) />#', '', $buffer);
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$buffer = preg_replace('#<ul(.*?)>#', '<p>', $buffer);
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$buffer = preg_replace('#<ol(.*?)>#', '<p>', $buffer);
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$buffer = preg_replace('#<dl(.*?)>#', '<p>', $buffer);
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$buffer = preg_replace('/<form(.*?)\/form>/ims', '<p>Please make comments through website!</p>', $buffer);
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$buffer = str_replace('<dt>', '<strong>', $buffer);
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$buffer = str_replace('</dt>', '</strong><br />', $buffer);
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$buffer = str_replace('<dd>', '', $buffer);
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$buffer = str_replace('</dd>', '<br />', $buffer);
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$buffer = str_replace('<li>', '', $buffer);
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$buffer = str_replace('</li>', '<br />', $buffer);
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$buffer = str_replace('</dl>', '</p>', $buffer);
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$buffer = str_replace('</ul>', '</p>', $buffer);
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$buffer = str_replace('</ol>', '</p>', $buffer);
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$buffer = str_replace('</p></p>', '</p>', $buffer);
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$buffer = str_replace('<span>', '', $buffer);
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$buffer = str_replace('</span>', '', $buffer);
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$buffer = str_replace('<acronym>', '(', $buffer);
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$buffer = str_replace('</acronym>', ')', $buffer);
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$buffer = str_replace('<code>', '<em>', $buffer);
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$buffer = str_replace('</code>', '</em>', $buffer);
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$buffer = str_replace('<legend>', '<big>', $buffer);
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$buffer = str_replace('</legend>', '</big><br />', $buffer);
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$buffer = str_replace('cardid', 'id', $buffer);
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$buffer = str_replace('cardtitle', 'title', $buffer);
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$buffer = str_replace('cardname', 'name', $buffer);
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$buffer = str_replace('cardtype', 'type', $buffer);
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$buffer = str_replace('cardlabel', 'label', $buffer);
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$buffer = str_replace('<p><big></big></p>', '', $buffer);
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$buffer = str_replace('<p></p>', '', $buffer);
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$buffer = str_replace('</strong><a', '</strong> <a', $buffer);
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$buffer = str_replace('<', '<', $buffer);
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$buffer = str_replace('Dev News', 'News', $buffer);
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$buffer = str_replace('Site Updates', 'Updates', $buffer);
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$buffer = str_replace('>[7] Prev', ' accesskey="7">[7] Prev', $buffer);
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$buffer = str_replace('>Next [9]', ' accesskey="9">Next [9]', $buffer);
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return fix($buffer, $fix);
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}
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//~ Make code mobile compatible, strip out some extras
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function mobifix($buffer) {
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global $fix;
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$buffer = preg_replace('/<a href="\/comment(.*?)<\/a>/ims', '', $buffer);
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$buffer = preg_replace('/<a href="?q=comment(.*?)<\/a>/ims', '', $buffer);
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$buffer = str_replace('<', '<', $buffer);
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$buffer = str_replace(' ', ' ', $buffer);
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$buffer = preg_replace('/<div class="service-label">(.*?)<\/div>/ims', '', $buffer);
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$buffer = preg_replace('/<div class="service-links">(.*?)<\/div>/ims', '', $buffer);
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$buffer = preg_replace('/<a id="comment">(.*?)<\/a>/ims', '', $buffer);
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$buffer = preg_replace('/<a href="\/taxonomy(.*?)class="feed-icon">(.*?)<\/a>/ims', '', $buffer);
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$buffer = preg_replace('/<span title="comment">(.*?)<\/span>/ims', 'Visit the website to post comments', $buffer);
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$buffer = str_replace('</a><', '</a> <', $buffer);
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$buffer = str_replace('</strong><a', '</strong> <a', $buffer);
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$buffer = str_replace('Dev News', 'News', $buffer);
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$buffer = str_replace('Site Updates', 'Updates', $buffer);
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$buffer = str_replace('>[7] Prev', ' accesskey="7">[7] Prev', $buffer);
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$buffer = str_replace('>Next [9]', ' accesskey="9">Next [9]', $buffer);
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return fix($buffer, $fix);
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}
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//~ Make code HTML compatible
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function htmlfix($buffer) {
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$buffer = preg_replace("!\s*/>!", ">", $buffer);
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return mobifix($buffer);
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}
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//~ Make code XHTML compatible
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function fix($buffer, $fix = FALSE) {
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if ($fix == FALSE) {
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return $buffer;
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} else {
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/**
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* This segment is based on htmlcorrector module was made by Steven Wittens <unconed@drop.org>
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*/
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$nonesting = array('li', 'p');
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// Single use tags in HTML4
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$singleuse = array('base', 'meta', 'link', 'hr', 'br', 'param', 'img', 'area', 'input', 'col', 'frame', 'go');
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// Properly entify angles
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$text = preg_replace('!<([^a-zA-Z/])!', '<\1', $buffer);
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// Splits tags from text
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$split = preg_split('/<([^>]+?)>/', $text, -1, PREG_SPLIT_DELIM_CAPTURE);
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// Note: PHP ensures the array consists of alternating delimiters and literals
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// and begins and ends with a literal (inserting $null as required).
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$tag = false; // Odd/even counter. Tag or no tag.
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$stack = array();
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$output = '';
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foreach ($split as $value) {
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// HTML tag
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if ($tag) {
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list($tagname) = explode(' ', strtolower($value), 2);
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// Closing tag
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if ($tagname{0} == '/') {
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$tagname = substr($tagname, 1);
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if (!in_array($tagname, $singleuse)) {
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// See if we have other tags lingering first, and close them
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while (($stack[0] != $tagname) && count($stack)) {
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$output .= '</'. array_shift($stack) .'>';
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}
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// If the tag was not found, just leave it out;
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if (count($stack)) {
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$output .= '</'. array_shift($stack) .'>';
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}
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}
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}
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// Opening tag
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else {
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// See if we have an identical tag already open and close it if desired.
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if (count($stack) && ($stack[0] == $tagname) && in_array($stack[0], $nonesting)) {
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$output .= '</'. array_shift($stack) .'>';
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}
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// Push non-single-use tags onto the stack
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if (!in_array($tagname, $singleuse)) {
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array_unshift($stack, $tagname);
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}
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// Add trailing slash to single-use tags as per X(HT)ML.
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else {
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$value = rtrim($value, ' /') . ' /';
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}
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$output .= '<'. $value .'>';
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}
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}
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else {
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// Passthrough
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$output .= $value;
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}
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$tag = !$tag;
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| 348 |
}
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// Close remaining tags
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| 350 |
while (count($stack) > 0) {
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$output .= '</'. array_shift($stack) .'>';
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}
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return str_replace (array('<','<p></p>'), array('<',''), $output );
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}
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}
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