/**
* Tries to read the file $this->file, and to decode it as a KeePass 2.x
* database, using the key $this->key. Returns true if the operation was
* successful, or false otherwise. In case of success, the array
* $this->entries will contain the resulting list of entries.
*
* @return boolean
*/
public function tryLoad()
{
if ($this->loaded) {
return $this->rawEntries != null;
}
$this->loaded = true;
if (!is_file($this->file) || !is_readable($this->file)) {
KeePassPHP::raiseError("Impossible to read " . $this->file);
return false;
}
KeePassPHP::printDebug("Attempting to load database from " . $this->file);
if (!$this->tryParse(RessourceReader::openFile($this->file))) {
KeePassPHP::printDebug(" ... attempt failed !");
return false;
}
KeePassPHP::printDebug(" ... attempt succeeded !");
return true;
}
/**
* Tries to parse the given file as a binary or a hex file.
* @param string $filename The name of the file to parse.
* @return boolean Returns true in case of success, false otherwise.
*/
private function tryParse($filename)
{
$reader = RessourceReader::openFile($filename);
if ($reader == null) {
return false;
}
$key = $reader->readToTheEnd();
if (strlen($key) == 32) {
$this->hash = $key;
return true;
}
if (strlen($key) == 64) {
$this->hash = hex2bin($key);
return true;
}
return false;
}
