/**
* Extract a ZIP compressed file to a given path
*
* @access public
* @param string $archive Path to ZIP archive to extract
* @param string $destination Path to extract archive into
* @param array $options Extraction options [unused]
* @return boolean True if successful
* @since 1.5
*/
function extract($archive, $destination, $options = array())
{
// Initialize variables
$this->_data = null;
$this->_metadata = null;
if (!($this->_data = file_get_contents($archive))) {
return PEAR::raiseError('Unable to read archive');
}
if (!$this->_getTarInfo($this->_data)) {
return PEAR::raiseError('Unable to decompress data');
}
for ($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'];
$path = extPath::clean($destination . DS . $this->_metadata[$i]['name']);
// Make sure the destination folder exists
if (!extMkdirR(dirname($path))) {
return PEAR::raiseError('Unable to create destination');
}
if (file_put_contents($path, $buffer) === false) {
return PEAR::raiseError('Unable to write entry');
}
}
}
return true;
}
/**
* Extract a ZIP compressed file to a given path using native php api calls for speed
*
* @access private
* @param string $archive Path to ZIP archive to extract
* @param string $destination Path to extract archive into
* @param array $options Extraction options [unused]
* @return boolean True if successful
* @since 1.5
*/
function _extractNative($archive, $destination, $options)
{
$zip = zip_open($archive);
if (is_resource($zip)) {
// Make sure the destination folder exists
if (!is_dir($destination) && !mkdir($destination)) {
return PEAR::raiseError('Unable to create destination');
}
// Read files in the archive
while ($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($file));
if (!extMkdirR(dirname($destination . DS . zip_entry_name($file))) || file_put_contents($destination . DS . zip_entry_name($file), $buffer) === false) {
return PEAR::raiseError('Unable to write entry: ' . $destination . DS . zip_entry_name($file));
}
zip_entry_close($file);
}
} else {
return PEAR::raiseError('Unable to read entry');
}
}
@zip_close($zip);
} else {
return PEAR::raiseError("Unable to open archive: " . extArchiveZip::zipFileErrMsg($zip));
}
return true;
}
