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Code Issues Projects Releases Wiki Activity

Disable polling while doing connect-via-BT

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This commit is contained in:
Daniel Lublin
2021-05-04 16:45:06 +02:00
parent c647c52638
commit fba028db03
6 changed files with 73 additions and 45 deletions
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2
bramble-api/src/main/java/org/briarproject/bramble/api/keyagreement/event/KeyAgreementStartedEvent.java
View File

@@ -3,7 +3,7 @@ package org.briarproject.bramble.api.keyagreement.event;
import org.briarproject.bramble.api.event.Event;
/**
* An event that is broadcast when a BQP protocol completes.
* An event that is broadcast when a BQP protocol begins.
*/
public class KeyAgreementStartedEvent extends Event {
}

14
bramble-core/src/main/java/org/briarproject/bramble/plugin/bluetooth/AbstractBluetoothPlugin.java
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@@ -473,6 +473,16 @@ abstract class AbstractBluetoothPlugin<S, SS> implements BluetoothPlugin,
return discoverSemaphore.availablePermits() == 0;
}
@Override
public void disablePolling() {
connectionLimiter.startLimiting();
}
@Override
public void enablePolling() {
connectionLimiter.endLimiting();
}
@Override
public DuplexTransportConnection discoverAndConnectForSetup(String uuid) {
DuplexTransportConnection conn = discoverAndConnect(uuid);
@@ -501,9 +511,9 @@ abstract class AbstractBluetoothPlugin<S, SS> implements BluetoothPlugin,
if (s.getNamespace().equals(ID.getString()))
ioExecutor.execute(() -> onSettingsUpdated(s.getSettings()));
} else if (e instanceof KeyAgreementListeningEvent) {
ioExecutor.execute(connectionLimiter::keyAgreementStarted);
connectionLimiter.startLimiting();
} else if (e instanceof KeyAgreementStoppedListeningEvent) {
ioExecutor.execute(connectionLimiter::keyAgreementEnded);
connectionLimiter.endLimiting();
} else if (e instanceof RemoteTransportPropertiesUpdatedEvent) {
RemoteTransportPropertiesUpdatedEvent r =
(RemoteTransportPropertiesUpdatedEvent) e;

9
bramble-core/src/main/java/org/briarproject/bramble/plugin/bluetooth/BluetoothConnectionLimiter.java
View File

@@ -7,14 +7,15 @@ import org.briarproject.bramble.api.plugin.duplex.DuplexTransportConnection;
interface BluetoothConnectionLimiter {
/**
* Informs the limiter that key agreement has started.
* Tells the limiter to not allow regular polling connections (because we
* are about to do key agreement, or connect via BT for setup).
*/
void keyAgreementStarted();
void startLimiting();
/**
* Informs the limiter that key agreement has ended.
* Tells the limiter to no longer limit regular polling connections.
*/
void keyAgreementEnded();
void endLimiting();
/**
* Returns true if a contact connection can be opened. This method does not

21
bramble-core/src/main/java/org/briarproject/bramble/plugin/bluetooth/BluetoothConnectionLimiterImpl.java
View File

@@ -30,34 +30,37 @@ class BluetoothConnectionLimiterImpl implements BluetoothConnectionLimiter {
private final List<DuplexTransportConnection> connections =
new LinkedList<>();
@GuardedBy("lock")
private boolean keyAgreementInProgress = false;
private int limitingInProgress = 0;
BluetoothConnectionLimiterImpl(EventBus eventBus) {
this.eventBus = eventBus;
}
@Override
public void keyAgreementStarted() {
public void startLimiting() {
synchronized (lock) {
keyAgreementInProgress = true;
limitingInProgress++;
}
LOG.info("Key agreement started");
LOG.info("Limiting started");
eventBus.broadcast(new CloseSyncConnectionsEvent(ID));
}
@Override
public void keyAgreementEnded() {
public void endLimiting() {
synchronized (lock) {
keyAgreementInProgress = false;
limitingInProgress--;
if (limitingInProgress < 0) {
throw new IllegalStateException();
}
}
LOG.info("Key agreement ended");
LOG.info("Limiting ended");
}
@Override
public boolean canOpenContactConnection() {
synchronized (lock) {
if (keyAgreementInProgress) {
LOG.info("Can't open contact connection during key agreement");
if (limitingInProgress > 0) {
LOG.info("Can't open contact connection while limiting");
return false;
} else {
LOG.info("Can open contact connection");

4
bramble-core/src/main/java/org/briarproject/bramble/plugin/bluetooth/BluetoothPlugin.java
View File

@@ -11,6 +11,10 @@ public interface BluetoothPlugin extends DuplexPlugin {
boolean isDiscovering();
void disablePolling();
void enablePolling();
@Nullable
DuplexTransportConnection discoverAndConnectForSetup(String uuid);

68
briar-android/src/main/java/org/briarproject/briar/android/conversation/BluetoothConnecter.java
View File

@@ -176,6 +176,7 @@ class BluetoothConnecter implements EventListener {
connect();
}
@UiThread
@Override
public void eventOccurred(@NonNull Event e) {
if (e instanceof ConnectionOpenedEvent) {
@@ -192,43 +193,52 @@ class BluetoothConnecter implements EventListener {
}
private void connect() {
bluetoothPlugin.disablePolling();
pluginManager.setPluginEnabled(ID, true);
ioExecutor.execute(() -> {
if (!waitForBluetoothActive()) {
showToast(R.string.bt_plugin_status_inactive);
LOG.warning("Bluetooth plugin didn't become active");
return;
}
showToast(R.string.toast_connect_via_bluetooth_start);
eventBus.addListener(this);
try {
String uuid = null;
if (!waitForBluetoothActive()) {
showToast(R.string.bt_plugin_status_inactive);
LOG.warning("Bluetooth plugin didn't become active");
return;
}
showToast(R.string.toast_connect_via_bluetooth_start);
eventBus.addListener(this);
try {
uuid = transportPropertyManager
.getRemoteProperties(contactId, ID).get(PROP_UUID);
} catch (DbException e) {
logException(LOG, WARNING, e);
}
if (isNullOrEmpty(uuid)) {
LOG.warning("PROP_UUID missing for contact");
return;
}
DuplexTransportConnection conn = bluetoothPlugin
.discoverAndConnectForSetup(uuid);
if (conn == null) {
if (!isConnectedViaBluetooth(contactId)) {
LOG.warning("Failed to connect");
showToast(R.string.toast_connect_via_bluetooth_error);
} else {
LOG.info("Failed to connect, but contact connected");
String uuid = null;
try {
uuid = transportPropertyManager
.getRemoteProperties(contactId, ID)
.get(PROP_UUID);
} catch (DbException e) {
logException(LOG, WARNING, e);
}
return;
if (isNullOrEmpty(uuid)) {
LOG.warning("PROP_UUID missing for contact");
return;
}
DuplexTransportConnection conn = bluetoothPlugin
.discoverAndConnectForSetup(uuid);
if (conn == null) {
if (!isConnectedViaBluetooth(contactId)) {
LOG.warning("Failed to connect");
showToast(
R.string.toast_connect_via_bluetooth_error);
} else {
LOG.info(
"Failed to connect, but contact connected");
}
return;
}
connectionManager
.manageOutgoingConnection(contactId, ID, conn);
showToast(R.string.toast_connect_via_bluetooth_success);
} finally {
eventBus.removeListener(this);
}
connectionManager.manageOutgoingConnection(contactId, ID, conn);
showToast(R.string.toast_connect_via_bluetooth_success);
} finally {
eventBus.removeListener(this);
bluetoothPlugin.enablePolling();
}
});
}