function zip_flatten($zipfile, $filter)
{
@ini_set('memory_limit', apply_filters('admin_memory_limit', WP_MAX_MEMORY_LIMIT));
//if a temp dir already exists remove it and create a new one
if (is_dir($this->paths['tempdir'])) {
$this->delete_folder($this->paths['tempdir']);
}
//create a new
$tempdir = avia_backend_create_folder($this->paths['tempdir'], false);
if (!$tempdir) {
exit('Wasn\'t able to create temp folder');
}
$zip = new ZipArchive();
if ($zip->open($zipfile)) {
for ($i = 0; $i < $zip->numFiles; $i++) {
$entry = $zip->getNameIndex($i);
if (!empty($filter)) {
$delete = true;
$matches = array();
foreach ($filter as $regex) {
preg_match("!" . $regex . "!", $entry, $matches);
if (!empty($matches)) {
$delete = false;
break;
}
}
}
if (substr($entry, -1) == '/' || !empty($delete)) {
continue;
}
// skip directories and non matching files
$fp = $zip->getStream($entry);
$ofp = fopen($this->paths['tempdir'] . '/' . basename($entry), 'w');
if (!$fp) {
exit('Unable to extract the file.');
}
while (!feof($fp)) {
fwrite($ofp, fread($fp, 8192));
}
fclose($fp);
fclose($ofp);
}
$zip->close();
} else {
exit('Wasn\'t able to work with Zip Archive');
}
return true;
}
function avia_generate_stylesheet($options = false)
{
global $avia;
$safe_name = avia_backend_safe_string($avia->base_data['prefix']);
$safe_name = apply_filters('avf_dynamic_stylesheet_filename', $safe_name);
if (defined('AVIA_CSSFILE') && AVIA_CSSFILE === FALSE) {
$dir_flag = update_option('avia_stylesheet_dir_writable' . $safe_name, 'false');
$stylesheet_flag = update_option('avia_stylesheet_exists' . $safe_name, 'false');
return;
}
$wp_upload_dir = wp_upload_dir();
$stylesheet_dir = $wp_upload_dir['basedir'] . '/dynamic_avia';
$stylesheet_dir = str_replace('\\', '/', $stylesheet_dir);
$stylesheet_dir = apply_filters('avia_dyn_stylesheet_dir_path', $stylesheet_dir);
$isdir = avia_backend_create_folder($stylesheet_dir);
/*
* directory could not be created (WP upload folder not write able)
* @todo save error in db and output error message for user.
* @todo maybe add mkdirfix: http://php.net/manual/de/function.mkdir.php
*/
if ($isdir === false) {
$dir_flag = update_option('avia_stylesheet_dir_writable' . $safe_name, 'false');
$stylesheet_flag = update_option('avia_stylesheet_exists' . $safe_name, 'false');
return;
}
/*
* Go ahead - WP managed to create the folder as expected
*/
$stylesheet = trailingslashit($stylesheet_dir) . $safe_name . '.css';
$stylesheet = apply_filters('avia_dyn_stylesheet_file_path', $stylesheet);
//import avia_superobject and reset the options array
$avia_superobject = $GLOBALS['avia'];
$avia_superobject->reset_options();
//regenerate style array after saving options page so we can create a new css file that has the actual values and not the ones that were active when the script was called
avia_prepare_dynamic_styles();
//generate stylesheet content
$generate_style = new avia_style_generator($avia_superobject, false, false, false);
$styles = $generate_style->create_styles();
$created = avia_backend_create_file($stylesheet, $styles, true);
if ($created === true) {
$dir_flag = update_option('avia_stylesheet_dir_writable' . $safe_name, 'true');
$stylesheet_flag = update_option('avia_stylesheet_exists' . $safe_name, 'true');
$dynamic_id = update_option('avia_stylesheet_dynamic_version' . $safe_name, uniqid());
}
}
