function _import_file($file)
{
if ($this->had_error()) {
return false;
}
if (!is_file($file)) {
$this->add_error(new WP_Error('builder-import-export-no-file', __('Unable to find requested export file', 'it-l10n-Builder-Cohen')));
return false;
}
it_classes_load('it-file-utility.php');
it_classes_load('it-zip.php');
$path = ITFileUtility::create_writable_directory(array('name' => 'deleteme-builder-import-export-upload-temp', 'random' => true));
if (is_wp_error($path)) {
$this->add_error($path);
return false;
}
$result = ITZip::unzip($file, $path);
if (is_wp_error($result) || !is_file("{$path}/info.txt") || !is_dir("{$path}/data-sources")) {
ITFileUtility::delete_directory($path);
$this->add_error(new WP_Error('builder-import-export-invalid-export-format', __('The uploaded file is not a valid Builder export file. It cannot be imported.', 'it-l10n-Builder-Cohen')));
return false;
}
$info = $this->_get_file_content("{$path}/info.txt");
$zip = new ITZip();
$export_path = $this->_get_export_path($info['guid'], $info['name']);
$new_guid = false;
if (is_wp_error($export_path)) {
$info['guid'] = $this->_generate_guid();
if (false === $info['guid']) {
return false;
}
$export_path = $this->_get_export_path($info['guid'], $info['name']);
$new_guid = true;
}
if (true === $new_guid) {
$this->_add_zip_file_content($zip, 'info.txt', $info);
}
$files = ITFileUtility::get_flat_file_listing($path);
foreach ((array) $files as $file) {
if (true === $new_guid && 'info.txt' === $file) {
continue;
}
$dir = dirname($file);
$dir = '.' === $dir ? '' : "{$dir}/";
$zip->add_file("{$path}/{$file}", $dir);
}
$file = $zip->create_zip(array('file' => $export_path));
ITFileUtility::delete_directory($path);
return $info['guid'];
}
public static function unzip($file, $path, $args = array())
{
if (!is_file($file)) {
return new WP_Error('it_zip_load_no_file', 'Unable to find the requested file to be unzipped.');
}
if (!is_writable($path)) {
return new WP_Error('it_zip_load_no_writable_path', 'Unable to write to destination path for zip file content.');
}
$default_args = array('force_compatibility' => false);
$args = array_merge($default_args, $args);
if (true !== $args['force_compatibility']) {
$result = ITZip::_load_native_zip($file, $path, $args);
}
if (true !== $result) {
$result = ITZip::_load_compatibility_zip($file, $path, $args);
}
if (is_wp_error($result)) {
return $result;
} else {
if (true !== $result) {
return new WP_Error('unknown_zip_failure', 'Zip file loading failed for an unknown reason');
}
}
return true;
}