function getHtmlBody($path) {
$dom = new DOMDocument();
$dom->loadHTMLFile($path);
$body = $dom->getElementsByTagName('body')->item(0);
return dom_save_html($dom, $body);
}
function standard_text_escape($text, $mathimg = '../../courses/mathimg/')
{
global $purifier;
$text = preg_replace_callback('/\\[m\\].*?\\[\\/m\\]/s', 'math_unescape', $text);
$html = $purifier->purify(mathfilter($text, 12, $mathimg));
if (!isset($_SESSION['glossary_terms_regexp'])) {
return $html;
}
$dom = new DOMDocument();
// workaround because DOM doesn't handle utf8 encoding correctly.
@$dom->loadHTML('<div>' . mb_convert_encoding($html, 'HTML-ENTITIES', 'UTF-8') . '</div>');
$xpath = new DOMXpath($dom);
$textNodes = $xpath->query('//text()');
foreach ($textNodes as $textNode) {
if (!empty($textNode->data)) {
$new_contents = glossary_expand($textNode->data);
if ($new_contents != $textNode->data) {
$newdoc = new DOMDocument();
$newdoc->loadXML('<span>' . $new_contents . '</span>', LIBXML_NONET | LIBXML_DTDLOAD | LIBXML_DTDATTR);
$newnode = $dom->importNode($newdoc->getElementsByTagName('span')->item(0), true);
$textNode->parentNode->replaceChild($newnode, $textNode);
unset($newdoc);
unset($newnode);
}
}
}
$base_node = $dom->getElementsByTagName('div')->item(0);
// iframe hack
return preg_replace(array('|^<div>(.*)</div>$|s', '#(<iframe [^>]+)/>#'), array('\\1', '\\1></iframe>'), dom_save_html($dom, $base_node));
}
$newdoc->loadXML('<span>' . $new_contents . '</span>', LIBXML_NONET|LIBXML_DTDLOAD|LIBXML_DTDATTR);
$newnode = $dom->importNode($newdoc->getElementsByTagName('span')->item(0), true);
$textNode->parentNode->replaceChild($newnode, $textNode);
}
}
}
}
foreach (array('link', 'style', 'script') as $tagname) {
foreach ($dom->getElementsByTagName($tagname) as $element) {
$ebook_head .= str_replace(array('<![CDATA[', ']]>'), array('', ''), dom_save_html($dom, $element));
}
}
$body_node = $dom->getElementsByTagName('body')->item(0);
foreach ($body_node->childNodes as $element) {
$ebook_body .= str_replace(' ', '', dom_save_html($dom, $element));
}
unset($dom);
$t->set_var('ebook_head', $ebook_head);
$t->set_var('ebook_body', $ebook_body);
$t->set_block('page', 'chapter_select_options', 'option_var');
if (!$show_orphan_file) {
foreach ($sections as $section_info) {
$t->set_var('chapter_title', ($section_info['indent'] ? ' ' : '') .
q(ellipsize($section_info['title'], 40)));
$t->set_var('chapter_id', $section_info['id']);
if ($section_info['current']) {
$t->set_var('chapter_selected', ' selected="selected"');
} else {
$t->set_var('chapter_selected', '');
/**
* Make sure URLs appearing in href and src attributes in HTML include a host.
*
* @param string $html - The HTML snippet to canonicalize
* @return string - The canonicalized HTML
*/
function add_host_to_urls($html)
{
global $urlServer, $urlAppend;
static $html_memo, $out_memo;
if (!isset($html_memo) or $html_memo != $html) {
$html_memo = $html;
$url_start = substr($urlServer, 0, strlen($urlServer) - strlen($urlAppend));
$dom = new DOMDocument();
@$dom->loadHTML('<div>' . mb_convert_encoding($html, 'HTML-ENTITIES', 'UTF-8') . '</div>');
foreach (array('a' => 'href', 'img' => 'src') as $tag_name => $attribute) {
$elements = $dom->getElementsByTagName($tag_name);
if ($elements instanceof DOMNodeList) {
foreach ($elements as $element) {
$url = $element->getAttribute($attribute);
if ($url) {
$url_info = parse_url($url);
if (!isset($url_info['scheme']) and !isset($url_info['host'])) {
$element->setAttribute($attribute, $url_start . $url);
}
}
}
}
}
$base_node = $dom->getElementsByTagName('div')->item(0);
$out_memo = dom_save_html($dom, $base_node);
}
return $out_memo;
}
