mirrors/riiablo
1
0
Fork 0
mirror of https://github.com/collinsmith/riiablo.git synced 2025-07-08 23:07:46 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

Aggregated client connection data/state into ClientData

Browse Source
This commit is contained in:
Collin Smith
2020-06-27 03:04:46 -07:00
parent 3906fbdf4c
commit 413ebc8f6c
1 changed files with 22 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
server/netty/src/com/riiablo/server/d2gs/Main.java
View File

@ -58,10 +58,7 @@ public class Main extends ApplicationAdapter implements PacketProcessor {
private final ConnectionLimiter connectionLimiter = new ConnectionLimiter();
private final ConcurrentHashMap<SocketAddress, Integer> connectionIds = new ConcurrentHashMap<>(32);
private final byte[] connectionState = new byte[MAX_CLIENTS];
private final ConcurrentHashMap<SocketAddress, Long> clientSalts = new ConcurrentHashMap<>(32);
private final ConcurrentHashMap<SocketAddress, Long> serverSalts = new ConcurrentHashMap<>(32);
private final ConcurrentHashMap<SocketAddress, Long> xor = new ConcurrentHashMap<>(32);
private final ConcurrentHashMap<SocketAddress, ClientData> clientDatas = new ConcurrentHashMap<>(32);
@Override
public void create() {
@ -155,39 +152,38 @@ public class Main extends ApplicationAdapter implements PacketProcessor {
boolean generateSalt = true;
long clientSalt = connection.salt();
Gdx.app.debug(TAG, " " + String.format("client salt=%016x", clientSalt));
if (clientSalts.containsKey(from)) {
long storedClientSalt = clientSalts.get(from);
ClientData client = clientDatas.get(from);
if (client != null) {
long storedClientSalt = client.clientSalt;
if (storedClientSalt == clientSalt) {
Gdx.app.debug(TAG, " " + "client salt matches server record");
generateSalt = false;
} else {
Gdx.app.debug(TAG, " " + "client salt mismatch with server record");
Gdx.app.debug(TAG, " " + "updating client salt to server record");
clientSalts.put(from, clientSalt);
client.clientSalt = clientSalt;
clientSalt = storedClientSalt;
Gdx.app.debug(TAG, " " + String.format("client salt=%016x", clientSalt));
}
} else {
Gdx.app.debug(TAG, " " + "no server record found matching client salt");
clientSalts.put(from, clientSalt);
clientDatas.put(from, client = new ClientData(clientSalt));
}
long serverSalt;
if (generateSalt) {
Gdx.app.debug(TAG, " " + "generating server salt");
serverSalt = MathUtils.random.nextLong();
Long previousValue = serverSalts.put(from, serverSalt);
if (previousValue != null) {
Gdx.app.debug(TAG, " " + String.format("overwriting existing server salt %016x", previousValue));
if (client.serverSalt != 0L) {
Gdx.app.debug(TAG, " " + String.format("overwriting existing server salt %016x", client.serverSalt));
}
client.serverSalt = serverSalt;
Gdx.app.debug(TAG, " " + String.format("server salt=%016x", serverSalt));
} else {
serverSalt = serverSalts.get(from);
serverSalt = client.serverSalt;
}
long salt = clientSalt ^ serverSalt;
xor.put(from, salt);
long salt = client.xor = clientSalt ^ serverSalt;
Gdx.app.debug(TAG, " " + String.format("salt=%016x", salt));
}
@ -216,4 +212,15 @@ public class Main extends ApplicationAdapter implements PacketProcessor {
Gdx.app.debug(TAG, String.format("connection closed. %d / %d", count, MAX_CLIENTS));
}
}
private static class ClientData {
long clientSalt;
long serverSalt;
long xor;
byte state;
ClientData(long clientSalt) {
this.clientSalt = clientSalt;
}
}
}