/**
* 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 Bzip2 compressed file to a given path
*
* @param string $archive Path to Bzip2 archive to extract
* @param string $destination Path to extract archive to
*
* @return boolean True if successful
*
* @since 1.0
* @throws Exception
*/
public function extract($archive, $destination)
{
$this->data = null;
$this->options['use_streams'] = false;
if (!isset($this->options['use_streams']) || $this->options['use_streams'] == false) {
// Old style: read the whole file and then parse it
$this->data = file_get_contents($archive);
if (!$this->data) {
throw new Exception('Unable to read archive');
}
$buffer = bzdecompress($this->data);
unset($this->data);
if (empty($buffer)) {
throw new Exception('Unable to decompress data');
}
if (xapp_File2::write($destination, $buffer) === false) {
throw new Exception('Unable to write archive');
}
} else {
// New style! streams!
$input = Stream::getStream();
// Use bzip
$input->set('processingmethod', 'bz');
if (!$input->open($archive)) {
throw new Exception('Unable to read archive (bz2)');
}
$output = Stream::getStream();
if (!$output->open($destination, 'w')) {
$input->close();
throw new Exception('Unable to write archive (bz2)');
}
do {
$this->data = $input->read($input->get('chunksize', 8196));
if ($this->data) {
if (!$output->write($this->data)) {
$input->close();
throw new Exception('Unable to write archive (bz2)');
}
}
} while ($this->data);
$output->close();
$input->close();
}
// @codeCoverageIgnoreEnd
return true;
}
/**
* Extract a Gzip compressed file to a given path
*
* @param string $archive Path to ZIP archive to extract
* @param string $destination Path to extract archive to
*
* @return boolean True if successful
*
* @since 1.0
* @throws Exception
*/
public function extract($archive, $destination)
{
$this->data = null;
$this->options['use_streams'] = false;
if (!isset($this->options['use_streams']) || $this->options['use_streams'] == false) {
$this->data = file_get_contents($archive);
if (!$this->data) {
throw new Exception('Unable to read archive');
}
$position = $this->getFilePosition();
$buffer = gzinflate(substr($this->data, $position, strlen($this->data) - $position));
if (empty($buffer)) {
throw new Exception('Unable to decompress data');
}
if (xapp_File2::write($destination, $buffer) === false) {
throw new Exception('Unable to write archive');
}
} else {
// New style! streams!
$input = Stream::getStream();
// Use gz
$input->set('processingmethod', 'gz');
if (!$input->open($archive)) {
throw new Exception('Unable to read archive (gz)');
}
$output = Stream::getStream();
if (!$output->open($destination, 'w')) {
$input->close();
throw new Exception('Unable to write archive (gz)');
}
do {
$this->data = $input->read($input->get('chunksize', 8196));
if ($this->data) {
if (!$output->write($this->data)) {
$input->close();
throw new Exception('Unable to write file (gz)');
}
}
} while ($this->data);
$output->close();
$input->close();
}
// @codeCoverageIgnoreEnd
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;
}
