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[MP] Fix auth not waiting for confirmation in some cases

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The auth implementation was treating any received packet as a remote
confirmation after the peer was confirmed locally.

It now correctly awaits for the remote confirmation packet before
admitting new peers.
This commit is contained in:
Fabio Alessandrelli 2023-12-17 13:19:07 +01:00
parent 26b1fd0d84
commit 754036f82f
1 changed files with 20 additions and 26 deletions
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46
modules/multiplayer/scene_multiplayer.cpp
View file

@ -96,35 +96,29 @@ Error SceneMultiplayer::poll() {
#endif
if (pending_peers.has(sender)) {
if (pending_peers[sender].local) {
// If the auth is over, admit the peer at the first packet.
pending_peers.erase(sender);
_admit_peer(sender);
ERR_CONTINUE(len < 2 || (packet[0] & CMD_MASK) != NETWORK_COMMAND_SYS || packet[1] != SYS_COMMAND_AUTH);
// Auth message.
PackedByteArray pba;
pba.resize(len - 2);
if (pba.size()) {
memcpy(pba.ptrw(), &packet[2], len - 2);
// User callback
const Variant sv = sender;
const Variant pbav = pba;
const Variant *argv[2] = { &sv, &pbav };
Variant ret;
Callable::CallError ce;
auth_callback.callp(argv, 2, ret, ce);
ERR_CONTINUE_MSG(ce.error != Callable::CallError::CALL_OK, "Failed to call authentication callback");
} else {
ERR_CONTINUE(len < 2 || (packet[0] & CMD_MASK) != NETWORK_COMMAND_SYS || packet[1] != SYS_COMMAND_AUTH);
// Auth message.
PackedByteArray pba;
pba.resize(len - 2);
if (pba.size()) {
memcpy(pba.ptrw(), &packet[2], len - 2);
// User callback
const Variant sv = sender;
const Variant pbav = pba;
const Variant *argv[2] = { &sv, &pbav };
Variant ret;
Callable::CallError ce;
auth_callback.callp(argv, 2, ret, ce);
ERR_CONTINUE_MSG(ce.error != Callable::CallError::CALL_OK, "Failed to call authentication callback");
} else {
// Remote complete notification.
pending_peers[sender].remote = true;
if (pending_peers[sender].local) {
pending_peers.erase(sender);
_admit_peer(sender);
}
// Remote complete notification.
pending_peers[sender].remote = true;
if (pending_peers[sender].local) {
pending_peers.erase(sender);
_admit_peer(sender);
}
continue; // Auth in progress.
}
continue; // Auth in progress.
}
ERR_CONTINUE(!connected_peers.has(sender));