/**
* Extract a ZIP compressed file to a given path
*
* @param string $archive Path to ZIP archive to extract
* @param string $destination Path to extract archive into
*
* @return boolean True if successful
* @throws Exception
*/
public function extract($archive, $destination)
{
$this->data = null;
$this->metadata = null;
$this->data = file_get_contents($archive);
if (!$this->data) {
throw new Exception('Unable to read archive');
}
$this->getTarInfo($this->data);
for ($i = 0, $n = count($this->metadata); $i < $n; $i++) {
$type = strtolower($this->metadata[$i]['type']);
if ($type == 'file' || $type == 'unix file') {
$buffer = $this->metadata[$i]['data'];
$path = xapp_Path2::clean($destination . '/' . $this->metadata[$i]['name']);
// Make sure the destination folder exists
if (!xapp_Folder2::create(dirname($path))) {
throw new Exception('Unable to create destination');
}
if (xapp_File2::write($path, $buffer) === false) {
throw new Exception('Unable to write entry');
}
}
}
return true;
}
/**
* Extract a ZIP compressed file to a given path using native php api calls for speed
*
* @param string $archive Path to ZIP archive to extract
* @param string $destination Path to extract archive into
*
* @return boolean True on success
*
* @since 1.0
* @throws \RuntimeException
*/
protected function extractNative($archive, $destination)
{
$zip = zip_open($archive);
if (is_resource($zip)) {
// Make sure the destination folder exists
if (!xapp_Folder2::create($destination)) {
throw new Exception('Unable to create destination');
}
// Read files in the archive
while ($file = @zip_read($zip)) {
if (zip_entry_open($zip, $file, "r")) {
if (substr(zip_entry_name($file), strlen(zip_entry_name($file)) - 1) != "/") {
$buffer = zip_entry_read($file, zip_entry_filesize($file));
if (xapp_File2::write($destination . '/' . zip_entry_name($file), $buffer) === false) {
throw new Exception('Unable to write entry');
}
zip_entry_close($file);
}
} else {
throw new Exception('Unable to read entry');
}
}
@zip_close($zip);
} else {
throw new \RuntimeException('Unable to open archive');
}
return true;
}
/**
* Write contents to a file
*
* @param string $file The full file path
* @param string &$buffer The buffer to write
* @param boolean $use_streams Use streams
*
* @return boolean True on success
*
* @since 1.0
* @throws FilesystemException
*/
public static function write($file, &$buffer, $use_streams = false)
{
@set_time_limit(ini_get('max_execution_time'));
// If the destination directory doesn't exist we need to create it
if (!file_exists(dirname($file))) {
xapp_Folder2::create(dirname($file));
}
if ($use_streams) {
$stream = Stream::getStream();
// Beef up the chunk size to a meg
$stream->set('chunksize', 1024 * 1024);
if (!$stream->writeFile($file, $buffer)) {
throw new FilesystemException(sprintf('%1$s(%2$s): %3$s', __METHOD__, $file, $stream->getError()));
}
return true;
} else {
$file = xapp_Path2::clean($file);
$ret = is_int(file_put_contents($file, $buffer)) ? true : false;
return $ret;
}
}
