public static function getInstallerList()
{
// This is a static cache which persists between subsequent calls, but not
// between successive page loads.
static $installer_list = array();
// Try to serve cached data first
if(!empty($installer_list) && is_array($installer_list))
{
if(count($installer_list) > 0) return $installer_list;
}
// Find absolute path to normal and plugins directories
$ds = DIRECTORY_SEPARATOR;
$path_list = array(
AEPlatform::get_installer_images_path()
);
// Initialize the array where we store our data
$installer_list = array();
// Loop for the paths where engines can be found
foreach($path_list as $path)
{
if(is_dir($path))
{
if(is_readable($path))
{
if( $handle = @opendir($path) )
{
while(false !== $filename = @readdir($handle))
{
if( (strtolower(substr($filename, -4)) == '.ini') && @is_file($path.$ds.$filename) )
{
$data = AEUtilINI::parse_ini_file($path.$ds.$filename, true);
foreach($data as $key => $values)
{
$installer_list[$key] = array();
foreach($values as $key2 => $value)
{
$installer_list[$key][$key2]=$value;
}
}
}
} // while readdir
@closedir($handle);
} // if opendir
} // if readable
} // if is_dir
}
return $installer_list;
}
/**
* Transforms a JPA archive (containing an installer) to the native archive format
* of the class. It actually extracts the source JPA in memory and instructs the
* class to include each extracted file.
*
* @param int $offset The source JPA archive's offset to use
* @return boolean False if an error occured, true otherwise
*/
public final function transformJPA( $offset )
{
// Do we have to open the file?
if(!$this->_xform_fp)
{
// Get the source path
$registry =& AEFactory::getConfiguration();
$embedded_installer = $registry->get('akeeba.advanced.embedded_installer');
// Fetch the name of the installer image
$installerDescriptors = AEUtilInihelper::getInstallerList();
$xform_source = AEPlatform::get_installer_images_path().DIRECTORY_SEPARATOR.
'foobar.jpa'; // We need this as a "safe fallback"
if(array_key_exists($embedded_installer, $installerDescriptors)) {
$package = $installerDescriptors[$embedded_installer]['package'];
if(empty($package)) {
// No installer package specified. Pretend we are done!
$retArray = array(
"filename" => '', // File name extracted
"data" => '', // File data
"offset" => 0, // Offset in ZIP file
"skip" => false, // Skip this?
"done" => true, // Are we done yet?
"filesize" => 0
);
return $retArray;
} else {
// A package is specified, use it!
$xform_source = AEPlatform::get_installer_images_path().DIRECTORY_SEPARATOR.
$package;
}
}
// 2.3: Try to use sane default if the indicated installer doesn't exist
if( !file_exists($xform_source) && (basename($xform_source) != 'abi.jpa') )
{
$this->setWarning(__CLASS__ . ":: Selected embedded installer not found, using ABI instead");
$xform_source = dirname($xform_source).DS.'abi.jpa';
}
// Try opening the file
if( file_exists($xform_source) )
{
$this->_xform_fp = @fopen( $xform_source, 'r');
if( $this->_xform_fp === false )
{
$this->setError(__CLASS__ . ":: Can't seed archive with installer package ".$xform_source);
return false;
}
} else {
$this->setError(__CLASS__ . ":: Installer package ".$xform_source." does not exist!");
return false;
}
}
if(!$offset)
{
// First run detected!
AEUtilLogger::WriteLog(_AE_LOG_DEBUG, 'Initializing with JPA package ');
$offset = 0;
// Skip over the header and check no problem exists
$offset = $this->_xformReadHeader();
if($offset === false)
{
$this->setError('JPA package file was not read');
return false; // Oops! The package file doesn't exist or is corrupt
}
}
$ret =& $this->_xformExtract($offset);
if(is_array($ret))
{
$offset = $ret['offset'];
if(!$ret['skip'] && !$ret['done'])
{
AEUtilLogger::WriteLog(_AE_LOG_DEBUG, ' Adding '.$ret['filename'] . '; Next offset:'.$offset);
$this->addVirtualFile($ret['filename'], '', $ret['data']);
if($this->getError()) return false;
}
else
{
$reason = $ret['done'] ? 'Done' : ' Skipping '.$ret['filename'];
AEUtilLogger::WriteLog(_AE_LOG_DEBUG, $reason);
}
}
else
{
$this->setError('JPA extraction returned FALSE');
return false;
}
if($ret['done'])
{
// We are finished! Close the file
fclose($this->_xform_fp);
AEUtilLogger::WriteLog(_AE_LOG_DEBUG, 'Initializing with JPA package has finished');
}
$ret['filesize'] = @filesize($xform_source);
return $ret;
}
