private function _try_create_missing_folders($folders, $url)
{
$permissions = array(0755, 0775, 0777);
$prev_perm = w3_get_file_permissions(WP_CONTENT_DIR);
foreach ($permissions as $permission) {
$result = true;
if ($prev_perm > $permission) {
continue;
}
if ($permission != $prev_perm) {
if (!($result = @chmod(WP_CONTENT_DIR, $permission))) {
$result = w3_chmod_dir(WP_CONTENT_DIR, $permission);
}
}
if ($result) {
try {
w3_wp_create_folders($folders, '', $url);
return true;
} catch (Exception $ex) {
}
}
if ($permission != $prev_perm) {
if (!@chmod(WP_CONTENT_DIR, $prev_perm)) {
w3_chmod_dir(WP_CONTENT_DIR, $prev_perm);
}
}
}
return true;
}
/**
* Creates cache folder and extension files.
* Throws exception on failure.
*
* @throws Exception
*/
function w3_activation_create_required_files()
{
/**
* Check installation files
*/
$files = array(W3TC_INSTALL_FILE_ADVANCED_CACHE, W3TC_INSTALL_FILE_DB, W3TC_INSTALL_FILE_OBJECT_CACHE);
$nonexistent_files = array();
foreach ($files as $file) {
if (!file_exists($file)) {
$nonexistent_files[] = $file;
}
}
if (count($nonexistent_files)) {
throw new Exception(sprintf('Unfortunately core file(s): (<strong>%s</strong>) ' . 'are missing, so activation will fail. Please re-start the installation ' . 'process from the beginning.', implode(', ', $nonexistent_files)));
}
$directories = array(W3TC_CACHE_DIR, W3TC_CONFIG_DIR, W3TC_CACHE_CONFIG_DIR, W3TC_CACHE_TMP_DIR);
try {
w3_wp_create_folders($directories, 'direct');
} catch (Exception $ex) {
}
}