Add ContactManager support for pending contact states.

parent b9283ea6
......@@ -8,6 +8,7 @@ import org.briarproject.bramble.api.contact.ContactManager;
import org.briarproject.bramble.api.contact.PendingContact;
import org.briarproject.bramble.api.contact.PendingContactId;
import org.briarproject.bramble.api.contact.PendingContactState;
import org.briarproject.bramble.api.contact.event.PendingContactStateChangedEvent;
import org.briarproject.bramble.api.crypto.KeyPair;
import org.briarproject.bramble.api.crypto.PublicKey;
import org.briarproject.bramble.api.crypto.SecretKey;
......@@ -15,24 +16,35 @@ import org.briarproject.bramble.api.db.DatabaseComponent;
import org.briarproject.bramble.api.db.DbException;
import org.briarproject.bramble.api.db.NoSuchContactException;
import org.briarproject.bramble.api.db.Transaction;
import org.briarproject.bramble.api.event.Event;
import org.briarproject.bramble.api.event.EventBus;
import org.briarproject.bramble.api.event.EventListener;
import org.briarproject.bramble.api.identity.Author;
import org.briarproject.bramble.api.identity.AuthorId;
import org.briarproject.bramble.api.identity.AuthorInfo;
import org.briarproject.bramble.api.identity.IdentityManager;
import org.briarproject.bramble.api.identity.LocalAuthor;
import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
import org.briarproject.bramble.api.rendezvous.event.RendezvousConnectionClosedEvent;
import org.briarproject.bramble.api.rendezvous.event.RendezvousConnectionOpenedEvent;
import org.briarproject.bramble.api.rendezvous.event.RendezvousFailedEvent;
import org.briarproject.bramble.api.transport.KeyManager;
import java.security.GeneralSecurityException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CopyOnWriteArrayList;
import javax.annotation.Nullable;
import javax.annotation.concurrent.GuardedBy;
import javax.annotation.concurrent.ThreadSafe;
import javax.inject.Inject;
import static org.briarproject.bramble.api.contact.PendingContactState.ADDING_CONTACT;
import static org.briarproject.bramble.api.contact.PendingContactState.FAILED;
import static org.briarproject.bramble.api.contact.PendingContactState.WAITING_FOR_CONNECTION;
import static org.briarproject.bramble.api.identity.AuthorConstants.MAX_AUTHOR_NAME_LENGTH;
import static org.briarproject.bramble.api.identity.AuthorInfo.Status.OURSELVES;
......@@ -43,24 +55,31 @@ import static org.briarproject.bramble.util.StringUtils.toUtf8;
@ThreadSafe
@NotNullByDefault
class ContactManagerImpl implements ContactManager {
class ContactManagerImpl implements ContactManager, EventListener {
private final DatabaseComponent db;
private final KeyManager keyManager;
private final IdentityManager identityManager;
private final PendingContactFactory pendingContactFactory;
private final EventBus eventBus;
private final List<ContactHook> hooks;
private final List<ContactHook> hooks = new CopyOnWriteArrayList<>();
private final Object statesLock = new Object();
@GuardedBy("statesLock")
private final Map<PendingContactId, PendingContactState> states =
new HashMap<>();
@Inject
ContactManagerImpl(DatabaseComponent db, KeyManager keyManager,
ContactManagerImpl(DatabaseComponent db,
KeyManager keyManager,
IdentityManager identityManager,
PendingContactFactory pendingContactFactory) {
PendingContactFactory pendingContactFactory,
EventBus eventBus) {
this.db = db;
this.keyManager = keyManager;
this.identityManager = identityManager;
this.pendingContactFactory = pendingContactFactory;
hooks = new CopyOnWriteArrayList<>();
this.eventBus = eventBus;
}
@Override
......@@ -139,6 +158,7 @@ class ContactManagerImpl implements ContactManager {
} finally {
db.endTransaction(txn);
}
setState(p.getId(), WAITING_FOR_CONNECTION);
return p;
}
......@@ -156,7 +176,12 @@ class ContactManagerImpl implements ContactManager {
List<Pair<PendingContact, PendingContactState>> pairs =
new ArrayList<>(pendingContacts.size());
for (PendingContact p : pendingContacts) {
pairs.add(new Pair<>(p, WAITING_FOR_CONNECTION)); // TODO
PendingContactState state;
synchronized (statesLock) {
state = states.get(p.getId());
}
if (state == null) state = WAITING_FOR_CONNECTION;
pairs.add(new Pair<>(p, state));
}
return pairs;
}
......@@ -164,6 +189,9 @@ class ContactManagerImpl implements ContactManager {
@Override
public void removePendingContact(PendingContactId p) throws DbException {
db.transaction(false, txn -> db.removePendingContact(txn, p));
synchronized (statesLock) {
states.remove(p);
}
}
@Override
......@@ -263,4 +291,34 @@ class ContactManagerImpl implements ContactManager {
else return new AuthorInfo(UNVERIFIED, c.getAlias());
}
@Override
public void eventOccurred(Event e) {
if (e instanceof RendezvousConnectionOpenedEvent) {
RendezvousConnectionOpenedEvent r =
(RendezvousConnectionOpenedEvent) e;
setState(r.getPendingContactId(), ADDING_CONTACT);
} else if (e instanceof RendezvousConnectionClosedEvent) {
RendezvousConnectionClosedEvent r =
(RendezvousConnectionClosedEvent) e;
// We're only interested in failures - if the rendezvous succeeds
// the pending contact will be removed
if (!r.isSuccess())
setState(r.getPendingContactId(), WAITING_FOR_CONNECTION);
} else if (e instanceof RendezvousFailedEvent) {
RendezvousFailedEvent r = (RendezvousFailedEvent) e;
setState(r.getPendingContactId(), FAILED);
}
}
/*
* Sets the state of the given pending contact and broadcasts an event,
* unless the current state is FAILED.
*/
private void setState(PendingContactId p, PendingContactState state) {
synchronized (statesLock) {
if (states.get(p) == FAILED) return;
states.put(p, state);
eventBus.broadcast(new PendingContactStateChangedEvent(p, state));
}
}
}
......@@ -3,6 +3,7 @@ package org.briarproject.bramble.contact;
import org.briarproject.bramble.api.contact.ContactExchangeManager;
import org.briarproject.bramble.api.contact.ContactManager;
import org.briarproject.bramble.api.contact.HandshakeManager;
import org.briarproject.bramble.api.event.EventBus;
import javax.inject.Inject;
import javax.inject.Singleton;
......@@ -20,7 +21,9 @@ public class ContactModule {
@Provides
@Singleton
ContactManager provideContactManager(ContactManagerImpl contactManager) {
ContactManager provideContactManager(EventBus eventBus,
ContactManagerImpl contactManager) {
eventBus.addListener(contactManager);
return contactManager;
}
......
......@@ -11,6 +11,7 @@ import org.briarproject.bramble.api.db.DatabaseComponent;
import org.briarproject.bramble.api.db.DbException;
import org.briarproject.bramble.api.db.NoSuchContactException;
import org.briarproject.bramble.api.db.Transaction;
import org.briarproject.bramble.api.event.EventBus;
import org.briarproject.bramble.api.identity.Author;
import org.briarproject.bramble.api.identity.AuthorId;
import org.briarproject.bramble.api.identity.AuthorInfo;
......@@ -20,6 +21,7 @@ import org.briarproject.bramble.api.transport.KeyManager;
import org.briarproject.bramble.test.BrambleMockTestCase;
import org.briarproject.bramble.test.DbExpectations;
import org.jmock.Expectations;
import org.junit.Before;
import org.junit.Test;
import java.util.Collection;
......@@ -54,7 +56,8 @@ public class ContactManagerImplTest extends BrambleMockTestCase {
context.mock(IdentityManager.class);
private final PendingContactFactory pendingContactFactory =
context.mock(PendingContactFactory.class);
private final ContactManager contactManager;
private final EventBus eventBus = context.mock(EventBus.class);
private final Author remote = getAuthor();
private final LocalAuthor localAuthor = getLocalAuthor();
private final AuthorId local = localAuthor.getId();
......@@ -62,9 +65,12 @@ public class ContactManagerImplTest extends BrambleMockTestCase {
private final Contact contact = getContact(remote, local, verified);
private final ContactId contactId = contact.getId();
public ContactManagerImplTest() {
private ContactManager contactManager;
@Before
public void setUp() {
contactManager = new ContactManagerImpl(db, keyManager,
identityManager, pendingContactFactory);
identityManager, pendingContactFactory, eventBus);
}
@Test
......
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