/**
* gets the decrypted password
*
* @return the decrypted password hash
*/
public byte[] getDecryptedPasswordHash() {
byte[] b1 = key.decodeByteArray(password);
byte[] b2 = Hash.xor(clientNonce, serverNonce);
if (b2 == null) {
logger.debug("B2 is null");
return null;
}
byte[] passwordHash = Hash.xor(b1, b2);
if (password == null) {
logger.debug("Password is null");
return null;
}
return passwordHash;
}
/** sends id, version and distribution */
public static void send() {
String clientid = readID();
if (clientid == null) {
clientid = generateRandomString();
saveID(clientid);
}
final RPAction action = new RPAction();
// compatibility with old servers
if (RPClass.getRPClass("cstatus") != null) {
action.put("type", "cstatus");
} else {
action.put("type", "cid");
}
// a client id to help with the investigation of hacked accounts
// especially in the common "angry sibling" case.
if (clientid != null) {
action.put("cid", clientid);
}
// the client version, the server will deactivate certain features that
// are incompatible with old clients. E. g. changing of light and dark
// in the current zone is implemented by retransmitting the tileset
// information. an old client would mistake that for a zone change and
// hang.
String version = Debug.VERSION;
if (Debug.PRE_RELEASE_VERSION != null) {
version = version + " - " + Debug.PRE_RELEASE_VERSION;
}
action.put("version", version);
// extract the signer of the client, so that we can ask bug
// reporters to try again with the official client, if they
// are using an unofficial one.
try {
Class<?> clazz = Class.forName("games.stendhal.client.update.Starter");
if (clazz != null) {
Object[] objects = clazz.getSigners();
if (objects instanceof Certificate[]) {
Certificate[] certs = (Certificate[]) objects;
if ((certs.length > 0)) {
byte[] key = certs[0].getPublicKey().getEncoded();
action.put("dist", Hash.toHexString(Hash.hash(key)));
}
}
}
// Throwable: both errors and exceptions
} catch (Throwable e) {
logger.error(e, e);
}
// Get build number. The class is not in CVS to prevent lots of unwanted
// conflicts. This has, however, the side effect, that it is missing in
// an IDE (e. g. Eclipes) environment.
// The build number is especially helpful for pre releases
try {
Class<?> clazz = Class.forName("games.stendhal.client.StendhalBuild");
Object buildNumber = clazz.getMethod("getBuildNumber").invoke(null);
if (buildNumber != null) {
action.put("build", buildNumber.toString());
}
} catch (Throwable e) {
logger.debug(e, e);
}
ClientSingletonRepository.getClientFramework().send(action);
}