function add_js($script, $type = 'import', $defer = FALSE)
{
$success = TRUE;
$js = NULL;
$this->CI->load->helper('url');
switch ($type) {
case 'import':
// $filepath = base_url() . $script;
// echo 'a='.is_uri($script);exit;
$filepath = is_uri($script) == true ? $script : base_url() . $script;
$js = '<script type="text/javascript" src="' . $filepath . '"';
if ($defer) {
$js .= ' defer="defer"';
}
$js .= "></script>";
break;
case 'embed':
$js = '<script type="text/javascript"';
if ($defer) {
$js .= ' defer="defer"';
}
$js .= ">";
$js .= $script;
$js .= '</script>';
break;
default:
$success = FALSE;
break;
}
// Add to js array if it doesn't already exist
// if ($js != NULL && !in_array($js, $this->js)){
// $this->js[] = $js;
// $this->write('_scripts', $js);
// }
$this->write('_scripts', $script);
return $success;
}
/**
* Do a sanity check on a whether a given path can be a valid URI path.
*
* we're looking for a URI path that directly maps to a filesystem path:
* so all path components also need to be valid directory (or file) names on
* the file system.
*
* We check whether a given path contains only characters valid in <b>both</b>
* a URI path and a filesystem path and does not consist of only dots (not valid
* for a filesystem path).
*/
function validUriPath($path)
{
if (is_uri($path)) {
$result = FALSE;
// $path was a URL: not allowed
// @@@ we would need to allow this for different wikis sharing
// the same server but running on a different domain: in that
// case all filesystem paths would work, so a fully-qualified
// URL should be possible. Options:
// 1. do not check at all (just return input as $result)
// (assume admin knows what (s)he's doing)
// 2. check for valid URL syntax
// 3. attempt to find out if they run on the same server - how??
// 4. translate URL to filesystem path and check for match with
// other paths ???
} else {
// 1. valid characters in a URI path are:
// - a slash (component separator); and
// - 0-9a-zA-Z_!~'().;@&=+$,%#-
// 2. on Windows, these chars are forbidden in a file/dir name: *?:
// @@@ move to regex library!
$result = $path;
// assume it's correct; then check
$pattern_pathfragment = "(/?)([0-9a-zA-Z_!~'.;@&=+,%#-\$()]+)";
// escaped $, ( and )
$pattern_path = '^(/)|(' . $pattern_pathfragment . ')+$';
// either a single '/' or one or more path components
// check if the path matches the pattern
if (!preg_match(':' . $pattern_path . ':', $path)) {
$result = FALSE;
} elseif (preg_match('/^\\.*$/', $path)) {
$result = FALSE;
} else {
// attempt to remove .. components from path
}
}
return $result;
}
