/**
* Unpacks a file and verifies it as a Joomla element package
* Supports .gz .tar .tar.gz and .zip
*
* @static
* @param string $p_filename The uploaded package filename or install directory
* @return boolean True on success, False on error
* @since 1.5
*/
static function unpack($p_filename)
{
// Path to the archive
$archivename = $p_filename;
// Temporary folder to extract the archive into
$tmpdir = uniqid('install_');
// Clean the paths to use for archive extraction
$extractdir = JPath::clean(dirname($p_filename) . DS . $tmpdir);
$archivename = JPath::clean($archivename);
// do the unpacking of the archive
$result = self::archive_extract($archivename, $extractdir);
if ($result === false) {
return false;
}
/*
* Lets set the extraction directory and package file in the result array so we can
* cleanup everything properly later on.
*/
$retval['extractdir'] = $extractdir;
$retval['packagefile'] = $archivename;
/*
* Try to find the correct install directory. In case the package is inside a
* subdirectory detect this and set the install directory to the correct path.
*
* List all the items in the installation directory. If there is only one, and
* it is a folder, then we will set that folder to be the installation folder.
*/
$dirList = array_merge(JFolder::files($extractdir, ''), JFolder::folders($extractdir, ''));
if (count($dirList) == 1) {
if (JFolder::exists($extractdir . DS . $dirList[0])) {
$extractdir = JPath::clean($extractdir . DS . $dirList[0]);
}
}
/*
* We have found the install directory so lets set it and then move on
* to detecting the extension type.
*/
$retval['dir'] = $extractdir;
/*
* Get the extension type and return the directory/type array on success or
* false on fail.
*/
if ($retval['type'] = isJInstallerHelper::detectType($extractdir)) {
return $retval;
} else {
return false;
}
}
