/**
* Print a standard header
*
* @uses $USER
* @uses $CFG
* @uses $SESSION
* @param string $title Appears at the top of the window
* @param string $heading Appears at the top of the page
* @param array $navigation Array of $navlinks arrays (keys: name, link, type) for use as breadcrumbs links
* @param string $focus Indicates form element to get cursor focus on load eg inputform.password
* @param string $meta Meta tags to be added to the header
* @param boolean $cache Should this page be cacheable?
* @param string $button HTML code for a button (usually for module editing)
* @param string $menu HTML code for a popup menu
* @param boolean $usexml use XML for this page
* @param string $bodytags This text will be included verbatim in the <body> tag (useful for onload() etc)
* @param bool $return If true, return the visible elements of the header instead of echoing them.
*/
function print_header($title = '', $heading = '', $navigation = '', $focus = '', $meta = '', $cache = true, $button = ' ', $menu = '', $usexml = false, $bodytags = '', $return = false)
{
global $USER, $CFG, $THEME, $SESSION, $ME, $SITE, $COURSE;
global $MODULE_INCLUDE;
if ($MODULE_INCLUDE) {
return;
}
if (gettype($navigation) == 'string' && strlen($navigation) != 0 && $navigation != 'home') {
debugging("print_header() was sent a string as 3rd ({$navigation}) parameter. " . "This is deprecated in favour of an array built by build_navigation(). Please upgrade your code.", DEBUG_DEVELOPER);
}
$heading = format_string($heading);
// Fix for MDL-8582
/// This makes sure that the header is never repeated twice on a page
if (defined('HEADER_PRINTED')) {
debugging('print_header() was called more than once - this should not happen. Please check the code for this page closely. Note: error() and redirect() are now safe to call after print_header().');
return;
}
define('HEADER_PRINTED', 'true');
/// Perform a browser environment check for the flash version. Should only run once per login session.
if (isloggedin() && !empty($CFG->excludeoldflashclients) && empty($SESSION->flashversion)) {
// Unfortunately we can't use require_js here and keep it all clean in 1.9 ...
// require_js(array('yui_yahoo', 'yui_event', 'yui_connection', $CFG->httpswwwroot."/lib/swfobject/swfobject.js"));
$meta .= '<script type="text/javascript" src="' . $CFG->wwwroot . '/lib/yui/yahoo/yahoo-min.js"></script>';
$meta .= '<script type="text/javascript" src="' . $CFG->wwwroot . '/lib/yui/event/event-min.js"></script>';
$meta .= '<script type="text/javascript" src="' . $CFG->wwwroot . '/lib/yui/connection/connection-min.js"></script>';
$meta .= '<script type="text/javascript" src="' . $CFG->wwwroot . '/lib/swfobject/swfobject.js"></script>';
$meta .= "<script type=\"text/javascript\">\n" . " var flashversion = swfobject.getFlashPlayerVersion();\n" . " YAHOO.util.Connect.asyncRequest('GET','" . $CFG->wwwroot . "/login/environment.php?sesskey=" . sesskey() . "&flashversion='+flashversion.major+'.'+flashversion.minor+'.'+flashversion.release);\n" . "</script>";
}
/// Add the required stylesheets
$stylesheetshtml = '';
foreach ($CFG->stylesheets as $stylesheet) {
$stylesheetshtml .= '<link rel="stylesheet" type="text/css" href="' . $stylesheet . '" />' . "\n";
}
$meta = $stylesheetshtml . $meta;
/// Add the meta page from the themes if any were requested
$metapage = '';
if (!isset($THEME->standardmetainclude) || $THEME->standardmetainclude) {
ob_start();
include_once $CFG->dirroot . '/theme/standard/meta.php';
$metapage .= ob_get_contents();
ob_end_clean();
}
if ($THEME->parent && (!isset($THEME->parentmetainclude) || $THEME->parentmetainclude)) {
if (file_exists($CFG->dirroot . '/theme/' . $THEME->parent . '/meta.php')) {
ob_start();
include_once $CFG->dirroot . '/theme/' . $THEME->parent . '/meta.php';
$metapage .= ob_get_contents();
ob_end_clean();
}
}
if (!isset($THEME->metainclude) || $THEME->metainclude) {
if (file_exists($CFG->dirroot . '/theme/' . current_theme() . '/meta.php')) {
ob_start();
include_once $CFG->dirroot . '/theme/' . current_theme() . '/meta.php';
$metapage .= ob_get_contents();
ob_end_clean();
}
}
$meta = $meta . "\n" . $metapage;
$meta .= "\n" . require_js('', 1);
/// Set up some navigation variables
if (is_newnav($navigation)) {
$home = false;
} else {
if ($navigation == 'home') {
$home = true;
$navigation = '';
} else {
$home = false;
}
}
/// This is another ugly hack to make navigation elements available to print_footer later
$THEME->title = $title;
$THEME->heading = $heading;
$THEME->navigation = $navigation;
$THEME->button = $button;
$THEME->menu = $menu;
$navmenulist = isset($THEME->navmenulist) ? $THEME->navmenulist : '';
if ($button == '') {
$button = ' ';
}
if (file_exists($CFG->dataroot . '/' . SITEID . '/maintenance.html')) {
$button = '<a href="' . $CFG->wwwroot . '/' . $CFG->admin . '/maintenance.php">' . get_string('maintenancemode', 'admin') . '</a> ' . $button;
if (!empty($title)) {
$title .= ' - ';
}
$title .= get_string('maintenancemode', 'admin');
}
if (!$menu and $navigation) {
if (empty($CFG->loginhttps)) {
$wwwroot = $CFG->wwwroot;
} else {
$wwwroot = str_replace('http:', 'https:', $CFG->wwwroot);
}
$menu = user_login_string($COURSE);
}
if (isset($SESSION->justloggedin)) {
unset($SESSION->justloggedin);
if (!empty($CFG->displayloginfailures)) {
if (!empty($USER->username) and $USER->username != 'guest') {
if ($count = count_login_failures($CFG->displayloginfailures, $USER->username, $USER->lastlogin)) {
$menu .= ' <font size="1">';
if (empty($count->accounts)) {
$menu .= get_string('failedloginattempts', '', $count);
} else {
$menu .= get_string('failedloginattemptsall', '', $count);
}
if (has_capability('coursereport/log:view', get_context_instance(CONTEXT_SYSTEM))) {
$menu .= ' (<a href="' . $CFG->wwwroot . '/course/report/log/index.php' . '?chooselog=1&id=1&modid=site_errors">' . get_string('logs') . '</a>)';
}
$menu .= '</font>';
}
}
}
}
$meta = '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />' . "\n" . $meta . "\n";
if (!$usexml) {
@header('Content-Type: text/html; charset=utf-8');
}
@header('Content-Script-Type: text/javascript');
@header('Content-Style-Type: text/css');
//Accessibility: added the 'lang' attribute to $direction, used in theme <html> tag.
$direction = get_html_lang($dir = true);
if ($cache) {
// Allow caching on "back" (but not on normal clicks)
@header('Cache-Control: private, pre-check=0, post-check=0, max-age=0');
@header('Pragma: no-cache');
@header('Expires: ');
} else {
// Do everything we can to always prevent clients and proxies caching
@header('Cache-Control: no-store, no-cache, must-revalidate');
@header('Cache-Control: post-check=0, pre-check=0', false);
@header('Pragma: no-cache');
@header('Expires: Mon, 20 Aug 1969 09:23:00 GMT');
@header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
$meta .= "\n<meta http-equiv=\"pragma\" content=\"no-cache\" />";
$meta .= "\n<meta http-equiv=\"expires\" content=\"0\" />";
}
@header('Accept-Ranges: none');
$currentlanguage = current_language();
if (empty($usexml)) {
$direction = ' xmlns="http://www.w3.org/1999/xhtml"' . $direction;
// See debug_header
} else {
$mathplayer = preg_match("/MathPlayer/i", $_SERVER['HTTP_USER_AGENT']);
if (!$mathplayer) {
header('Content-Type: application/xhtml+xml');
}
echo '<?xml version="1.0" ?>' . "\n";
if (!empty($CFG->xml_stylesheets)) {
$stylesheets = explode(';', $CFG->xml_stylesheets);
foreach ($stylesheets as $stylesheet) {
echo '<?xml-stylesheet type="text/xsl" href="' . $CFG->wwwroot . '/' . $stylesheet . '" ?>' . "\n";
}
}
echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1';
if (!empty($CFG->xml_doctype_extra)) {
echo ' plus ' . $CFG->xml_doctype_extra;
}
echo '//' . strtoupper($currentlanguage) . '" "' . $CFG->xml_dtd . '">' . "\n";
$direction = " xmlns=\"http://www.w3.org/1999/xhtml\"\n xmlns:math=\"http://www.w3.org/1998/Math/MathML\"\n xmlns:xlink=\"http://www.w3.org/1999/xlink\"\n {$direction}";
if ($mathplayer) {
$meta .= '<object id="mathplayer" classid="clsid:32F66A20-7614-11D4-BD11-00104BD3F987">' . "\n";
$meta .= '<!--comment required to prevent this becoming an empty tag-->' . "\n";
$meta .= '</object>' . "\n";
$meta .= '<?import namespace="math" implementation="#mathplayer" ?>' . "\n";
}
}
// Clean up the title
$title = format_string($title);
// fix for MDL-8582
$title = str_replace('"', '"', $title);
// Create class and id for this page
page_id_and_class($pageid, $pageclass);
$pageclass .= ' course-' . $COURSE->id;
if (!isloggedin()) {
$pageclass .= ' notloggedin';
}
if (!empty($USER->editing)) {
$pageclass .= ' editing';
}
if (!empty($CFG->blocksdrag)) {
$pageclass .= ' drag';
}
$pageclass .= ' dir-' . get_string('thisdirection');
$pageclass .= ' lang-' . $currentlanguage;
$bodytags .= ' class="' . $pageclass . '" id="' . $pageid . '"';
ob_start();
include $CFG->header;
$output = ob_get_contents();
ob_end_clean();
// container debugging info
$THEME->open_header_containers = open_containers();
// Skip to main content, see skip_main_destination().
if ($pageid == 'course-view' or $pageid == 'site-index' or $pageid == 'course-index') {
$skiplink = '<a class="skip" href="#maincontent">' . get_string('tocontent', 'access') . '</a>';
if (!preg_match('/(.*<div[^>]+id="page"[^>]*>)(.*)/s', $output, $matches)) {
preg_match('/(.*<body.*?>)(.*)/s', $output, $matches);
}
$output = $matches[1] . "\n" . $skiplink . $matches[2];
}
$output = force_strict_header($output);
if (!empty($CFG->messaging)) {
$output .= message_popup_window();
}
// Add in any extra JavaScript libraries that occurred during the header
$output .= require_js('', 2);
if ($return) {
return $output;
} else {
echo $output;
}
}
/**
* Print a standard header
*
* @uses $USER
* @uses $CFG
* @uses $SESSION
* @param string $title Appears at the top of the window
* @param string $heading Appears at the top of the page
* @param array $navigation Array of $navlinks arrays (keys: name, link, type) for use as breadcrumbs links
* @param string $focus Indicates form element to get cursor focus on load eg inputform.password
* @param string $meta Meta tags to be added to the header
* @param boolean $cache Should this page be cacheable?
* @param string $button HTML code for a button (usually for module editing)
* @param string $menu HTML code for a popup menu
* @param boolean $usexml use XML for this page
* @param string $bodytags This text will be included verbatim in the <body> tag (useful for onload() etc)
* @param bool $return If true, return the visible elements of the header instead of echoing them.
*/
function print_header($title = '', $heading = '', $navigation = '', $focus = '', $meta = '', $cache = true, $button = ' ', $menu = '', $usexml = false, $bodytags = '', $return = false)
{
global $USER, $CFG, $THEME, $SESSION, $ME, $SITE, $COURSE, $PAGE;
if (gettype($navigation) == 'string' && strlen($navigation) != 0 && $navigation != 'home') {
debugging("print_header() was sent a string as 3rd ({$navigation}) parameter. " . "This is deprecated in favour of an array built by build_navigation(). Please upgrade your code.", DEBUG_DEVELOPER);
}
$PAGE->set_state(moodle_page::STATE_PRINTING_HEADER);
$heading = format_string($heading);
// Fix for MDL-8582
if (CLI_SCRIPT) {
$output = $heading;
if ($return) {
return $output;
} else {
console_write($output . "\n", '', false);
return;
}
}
/// Add the required stylesheets
$stylesheetshtml = '';
foreach ($CFG->stylesheets as $stylesheet) {
$stylesheetshtml .= '<link rel="stylesheet" type="text/css" href="' . $stylesheet . '" />' . "\n";
}
$meta = $stylesheetshtml . $meta;
/// Add the meta page from the themes if any were requested
$metapage = '';
if (!isset($THEME->standardmetainclude) || $THEME->standardmetainclude) {
ob_start();
include_once $CFG->dirroot . '/theme/standard/meta.php';
$metapage .= ob_get_contents();
ob_end_clean();
}
if ($THEME->parent && (!isset($THEME->parentmetainclude) || $THEME->parentmetainclude)) {
if (file_exists($CFG->dirroot . '/theme/' . $THEME->parent . '/meta.php')) {
ob_start();
include_once $CFG->dirroot . '/theme/' . $THEME->parent . '/meta.php';
$metapage .= ob_get_contents();
ob_end_clean();
}
}
if (!isset($THEME->metainclude) || $THEME->metainclude) {
if (file_exists($CFG->dirroot . '/theme/' . current_theme() . '/meta.php')) {
ob_start();
include_once $CFG->dirroot . '/theme/' . current_theme() . '/meta.php';
$metapage .= ob_get_contents();
ob_end_clean();
}
}
$meta = $meta . "\n" . $metapage;
$meta .= "\n" . require_js('', 1);
$meta .= standard_js_config();
/// Set up some navigation variables
if (is_newnav($navigation)) {
$home = false;
} else {
if ($navigation == 'home') {
$home = true;
$navigation = '';
} else {
$home = false;
}
}
/// This is another ugly hack to make navigation elements available to print_footer later
$THEME->title = $title;
$THEME->heading = $heading;
$THEME->navigation = $navigation;
$THEME->button = $button;
$THEME->menu = $menu;
$navmenulist = isset($THEME->navmenulist) ? $THEME->navmenulist : '';
if ($button == '') {
$button = ' ';
}
if (file_exists($CFG->dataroot . '/' . SITEID . '/maintenance.html')) {
$button = '<a href="' . $CFG->wwwroot . '/' . $CFG->admin . '/maintenance.php">' . get_string('maintenancemode', 'admin') . '</a> ' . $button;
if (!empty($title)) {
$title .= ' - ';
}
$title .= get_string('maintenancemode', 'admin');
}
if (!$menu and $navigation) {
if (empty($CFG->loginhttps)) {
$wwwroot = $CFG->wwwroot;
} else {
$wwwroot = str_replace('http:', 'https:', $CFG->wwwroot);
}
$menu = user_login_string($COURSE);
}
if (isset($SESSION->justloggedin)) {
unset($SESSION->justloggedin);
if (!empty($CFG->displayloginfailures)) {
if (!empty($USER->username) and $USER->username != 'guest') {
if ($count = count_login_failures($CFG->displayloginfailures, $USER->username, $USER->lastlogin)) {
$menu .= ' <font size="1">';
if (empty($count->accounts)) {
$menu .= get_string('failedloginattempts', '', $count);
} else {
$menu .= get_string('failedloginattemptsall', '', $count);
}
if (has_capability('coursereport/log:view', get_context_instance(CONTEXT_SYSTEM))) {
$menu .= ' (<a href="' . $CFG->wwwroot . '/course/report/log/index.php' . '?chooselog=1&id=1&modid=site_errors">' . get_string('logs') . '</a>)';
}
$menu .= '</font>';
}
}
}
}
$meta = '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />' . "\n" . $meta . "\n";
if (!$usexml) {
@header('Content-Type: text/html; charset=utf-8');
}
@header('Content-Script-Type: text/javascript');
@header('Content-Style-Type: text/css');
//Accessibility: added the 'lang' attribute to $direction, used in theme <html> tag.
$direction = get_html_lang($dir = true);
if ($cache) {
// Allow caching on "back" (but not on normal clicks)
@header('Cache-Control: private, pre-check=0, post-check=0, max-age=0');
@header('Pragma: no-cache');
@header('Expires: ');
} else {
// Do everything we can to always prevent clients and proxies caching
@header('Cache-Control: no-store, no-cache, must-revalidate');
@header('Cache-Control: post-check=0, pre-check=0', false);
@header('Pragma: no-cache');
@header('Expires: Mon, 20 Aug 1969 09:23:00 GMT');
@header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
$meta .= "\n<meta http-equiv=\"pragma\" content=\"no-cache\" />";
$meta .= "\n<meta http-equiv=\"expires\" content=\"0\" />";
}
@header('Accept-Ranges: none');
$currentlanguage = current_language();
if (empty($usexml)) {
$direction = ' xmlns="http://www.w3.org/1999/xhtml"' . $direction;
// See debug_header
} else {
$mathplayer = preg_match("/MathPlayer/i", $_SERVER['HTTP_USER_AGENT']);
if (!$mathplayer) {
header('Content-Type: application/xhtml+xml');
}
echo '<?xml version="1.0" ?>' . "\n";
if (!empty($CFG->xml_stylesheets)) {
$stylesheets = explode(';', $CFG->xml_stylesheets);
foreach ($stylesheets as $stylesheet) {
echo '<?xml-stylesheet type="text/xsl" href="' . $CFG->wwwroot . '/' . $stylesheet . '" ?>' . "\n";
}
}
echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1';
if (!empty($CFG->xml_doctype_extra)) {
echo ' plus ' . $CFG->xml_doctype_extra;
}
echo '//' . strtoupper($currentlanguage) . '" "' . $CFG->xml_dtd . '">' . "\n";
$direction = " xmlns=\"http://www.w3.org/1999/xhtml\"\n xmlns:math=\"http://www.w3.org/1998/Math/MathML\"\n xmlns:xlink=\"http://www.w3.org/1999/xlink\"\n {$direction}";
if ($mathplayer) {
$meta .= '<object id="mathplayer" classid="clsid:32F66A20-7614-11D4-BD11-00104BD3F987">' . "\n";
$meta .= '<!--comment required to prevent this becoming an empty tag-->' . "\n";
$meta .= '</object>' . "\n";
$meta .= '<?import namespace="math" implementation="#mathplayer" ?>' . "\n";
}
}
// Clean up the title
$title = format_string($title);
// fix for MDL-8582
$title = str_replace('"', '"', $title);
// Create class and id for this page
$pageid = $PAGE->pagetype;
$pageclass = $PAGE->bodyclasses;
$bodytags .= ' class="' . $pageclass . '" id="' . $pageid . '"';
require_once $CFG->libdir . '/editor/htmlEditor.class.php';
$htmlEditorObject = new htmlEditor();
$htmlEditor = $htmlEditorObject->configure(NULL, $COURSE->id);
ob_start();
include $CFG->header;
$output = ob_get_contents();
ob_end_clean();
// container debugging info
$THEME->open_header_containers = open_containers();
// Skip to main content, see skip_main_destination().
if ($pageid == 'course-view' or $pageid == 'site-index' or $pageid == 'course-index') {
$skiplink = '<a class="skip" href="#maincontent">' . get_string('tocontent', 'access') . '</a>';
if (!preg_match('/(.*<div[^>]+id="page"[^>]*>)(.*)/s', $output, $matches)) {
preg_match('/(.*<body.*?>)(.*)/s', $output, $matches);
}
$output = $matches[1] . "\n" . $skiplink . $matches[2];
}
$output = force_strict_header($output);
if (!empty($CFG->messaging)) {
$output .= message_popup_window();
}
// Add in any extra JavaScript libraries that occurred during the header
$output .= require_js('', 2);
$output .= print_js_call('moodle_initialise_body', array(), true);
$PAGE->set_state(moodle_page::STATE_IN_BODY);
if ($return) {
return $output;
} else {
echo $output;
}
}
/**
* Print a standard header
*
* @uses $USER
* @uses $CFG
* @uses $SESSION
* @param string $title Appears at the top of the window
* @param string $heading Appears at the top of the page
* @param string $navigation Premade navigation string (for use as breadcrumbs links)
* @param string $focus Indicates form element to get cursor focus on load eg inputform.password
* @param string $meta Meta tags to be added to the header
* @param boolean $cache Should this page be cacheable?
* @param string $button HTML code for a button (usually for module editing)
* @param string $menu HTML code for a popup menu
* @param boolean $usexml use XML for this page
* @param string $bodytags This text will be included verbatim in the <body> tag (useful for onload() etc)
* @param bool $return If true, return the visible elements of the header instead of echoing them.
*/
function print_header($title = '', $heading = '', $navigation = '', $focus = '', $meta = '', $cache = true, $button = ' ', $menu = '', $usexml = false, $bodytags = '', $return = false)
{
global $USER, $CFG, $THEME, $SESSION, $ME, $SITE, $COURSE;
$heading = format_string($heading);
// Fix for MDL-8582
/// This makes sure that the header is never repeated twice on a page
if (defined('HEADER_PRINTED')) {
debugging('print_header() was called more than once - this should not happen. Please check the code for this page closely. Note: error() and redirect() are now safe to call after print_header().');
return;
}
define('HEADER_PRINTED', 'true');
/// Add the required stylesheets
$stylesheetshtml = '';
foreach ($CFG->stylesheets as $stylesheet) {
$stylesheetshtml .= '<link rel="stylesheet" type="text/css" href="' . $stylesheet . '" />' . "\n";
}
$meta = $stylesheetshtml . $meta;
/// Add the meta page from the themes if any were requested
$metapage = '';
if (!isset($THEME->standardmetainclude) || $THEME->standardmetainclude) {
ob_start();
include_once $CFG->dirroot . '/theme/standard/meta.php';
$metapage .= ob_get_contents();
ob_end_clean();
}
if ($THEME->parent && (!isset($THEME->parentmetainclude) || $THEME->parentmetainclude)) {
if (file_exists($CFG->dirroot . '/theme/' . $THEME->parent . '/meta.php')) {
ob_start();
include_once $CFG->dirroot . '/theme/' . $THEME->parent . '/meta.php';
$metapage .= ob_get_contents();
ob_end_clean();
}
}
if (!isset($THEME->metainclude) || $THEME->metainclude) {
if (file_exists($CFG->dirroot . '/theme/' . current_theme() . '/meta.php')) {
ob_start();
include_once $CFG->dirroot . '/theme/' . current_theme() . '/meta.php';
$metapage .= ob_get_contents();
ob_end_clean();
}
}
$meta = $meta . "\n" . $metapage;
/// Add the required JavaScript Libraries
$meta .= "\n" . require_js();
if ($navigation == 'home') {
$home = true;
$navigation = '';
} else {
$home = false;
}
/// This is another ugly hack to make navigation elements available to print_footer later
$THEME->title = $title;
$THEME->heading = $heading;
$THEME->navigation = $navigation;
$THEME->button = $button;
$THEME->menu = $menu;
$navmenulist = isset($THEME->navmenulist) ? $THEME->navmenulist : '';
if ($button == '') {
$button = ' ';
}
if (!$menu and $navigation) {
if (empty($CFG->loginhttps)) {
$wwwroot = $CFG->wwwroot;
} else {
$wwwroot = str_replace('http:', 'https:', $CFG->wwwroot);
}
$menu = user_login_string($COURSE);
}
if (isset($SESSION->justloggedin)) {
unset($SESSION->justloggedin);
if (!empty($CFG->displayloginfailures)) {
if (!empty($USER->username) and $USER->username != 'guest') {
if ($count = count_login_failures($CFG->displayloginfailures, $USER->username, $USER->lastlogin)) {
$menu .= ' <font size="1">';
if (empty($count->accounts)) {
$menu .= get_string('failedloginattempts', '', $count);
} else {
$menu .= get_string('failedloginattemptsall', '', $count);
}
if (has_capability('moodle/site:viewreports', get_context_instance(CONTEXT_SYSTEM, SITEID))) {
$menu .= ' (<a href="' . $CFG->wwwroot . '/course/report/log/index.php' . '?chooselog=1&id=1&modid=site_errors">' . get_string('logs') . '</a>)';
}
$menu .= '</font>';
}
}
}
}
$meta = '<meta http-equiv="content-type" content="text/html; charset=utf-8" />' . "\n" . $meta . "\n";
if (!$usexml) {
@header('Content-type: text/html; charset=utf-8');
}
//Accessibility: added the 'lang' attribute to $direction, used in theme <html> tag.
$direction = get_html_lang($dir = true);
if ($cache) {
// Allow caching on "back" (but not on normal clicks)
@header('Cache-Control: private, pre-check=0, post-check=0, max-age=0');
@header('Pragma: no-cache');
@header('Expires: ');
} else {
// Do everything we can to always prevent clients and proxies caching
@header('Cache-Control: no-store, no-cache, must-revalidate');
@header('Cache-Control: post-check=0, pre-check=0', false);
@header('Pragma: no-cache');
@header('Expires: Mon, 20 Aug 1969 09:23:00 GMT');
@header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
$meta .= "\n<meta http-equiv=\"pragma\" content=\"no-cache\" />";
$meta .= "\n<meta http-equiv=\"expires\" content=\"0\" />";
}
@header('Accept-Ranges: none');
$currentlanguage = current_language();
if (empty($usexml)) {
$direction = ' xmlns="http://www.w3.org/1999/xhtml"' . $direction;
// See debug_header
} else {
$mathplayer = preg_match("/MathPlayer/i", $_SERVER['HTTP_USER_AGENT']);
if (!$mathplayer) {
header('Content-Type: application/xhtml+xml');
}
echo '<?xml version="1.0" ?>' . "\n";
if (!empty($CFG->xml_stylesheets)) {
$stylesheets = explode(';', $CFG->xml_stylesheets);
foreach ($stylesheets as $stylesheet) {
echo '<?xml-stylesheet type="text/xsl" href="' . $CFG->wwwroot . '/' . $stylesheet . '" ?>' . "\n";
}
}
echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1';
if (!empty($CFG->xml_doctype_extra)) {
echo ' plus ' . $CFG->xml_doctype_extra;
}
echo '//' . strtoupper($currentlanguage) . '" "' . $CFG->xml_dtd . '">' . "\n";
$direction = " xmlns=\"http://www.w3.org/1999/xhtml\"\n xmlns:math=\"http://www.w3.org/1998/Math/MathML\"\n xmlns:xlink=\"http://www.w3.org/1999/xlink\"\n {$direction}";
if ($mathplayer) {
$meta .= '<object id="mathplayer" classid="clsid:32F66A20-7614-11D4-BD11-00104BD3F987">' . "\n";
$meta .= '<!--comment required to prevent this becoming an empty tag-->' . "\n";
$meta .= '</object>' . "\n";
$meta .= '<?import namespace="math" implementation="#mathplayer" ?>' . "\n";
}
}
// Clean up the title
$title = format_string($title);
// fix for MDL-8582
$title = str_replace('"', '"', $title);
// Create class and id for this page
page_id_and_class($pageid, $pageclass);
$pageclass .= ' course-' . $COURSE->id;
if ($pageid != 'site-index' && $pageid != 'course-view' && strstr($pageid, 'admin') === FALSE) {
$pageclass .= ' nocoursepage';
}
if (!isloggedin()) {
$pageclass .= ' notloggedin';
}
if (!empty($USER->editing)) {
$pageclass .= ' editing';
}
if (!empty($CFG->blocksdrag)) {
$pageclass .= ' drag';
}
$pageclass .= ' lang-' . $currentlanguage;
$bodytags .= ' class="' . $pageclass . '" id="' . $pageid . '"';
ob_start();
include $CFG->header;
$output = ob_get_contents();
ob_end_clean();
$output = force_strict_header($output);
if (!empty($CFG->messaging)) {
$output .= message_popup_window();
}
if ($return) {
return $output;
} else {
echo $output;
}
}