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Send versions record at start of each session.

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This commit is contained in:
akwizgran
2019-06-13 16:14:51 +01:00
parent c228e5c219
commit 132e20a6ce
4 changed files with 29 additions and 2 deletions
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8
bramble-api/src/main/java/org/briarproject/bramble/api/sync/SyncConstants.java
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@@ -2,6 +2,9 @@ package org.briarproject.bramble.api.sync;
import org.briarproject.bramble.api.UniqueId;
import java.util.List;
import static java.util.Collections.singletonList;
import static org.briarproject.bramble.api.record.Record.MAX_RECORD_PAYLOAD_BYTES;
public interface SyncConstants {
@@ -11,6 +14,11 @@ public interface SyncConstants {
*/
byte PROTOCOL_VERSION = 0;
/**
* The versions of the sync protocol this peer supports.
*/
List<Byte> SUPPORTED_VERSIONS = singletonList(PROTOCOL_VERSION);
/**
* The maximum length of a group descriptor in bytes.
*/

7
bramble-core/src/main/java/org/briarproject/bramble/sync/DuplexOutgoingSession.java
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@@ -17,6 +17,7 @@ import org.briarproject.bramble.api.sync.Offer;
import org.briarproject.bramble.api.sync.Request;
import org.briarproject.bramble.api.sync.SyncRecordWriter;
import org.briarproject.bramble.api.sync.SyncSession;
import org.briarproject.bramble.api.sync.Versions;
import org.briarproject.bramble.api.sync.event.GroupVisibilityUpdatedEvent;
import org.briarproject.bramble.api.sync.event.MessageRequestedEvent;
import org.briarproject.bramble.api.sync.event.MessageSharedEvent;
@@ -39,9 +40,11 @@ import javax.annotation.concurrent.ThreadSafe;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
import static java.util.logging.Level.INFO;
import static java.util.logging.Level.WARNING;
import static java.util.logging.Logger.getLogger;
import static org.briarproject.bramble.api.lifecycle.LifecycleManager.LifecycleState.STOPPING;
import static org.briarproject.bramble.api.record.Record.MAX_RECORD_PAYLOAD_BYTES;
import static org.briarproject.bramble.api.sync.SyncConstants.MAX_MESSAGE_IDS;
import static org.briarproject.bramble.api.sync.SyncConstants.SUPPORTED_VERSIONS;
import static org.briarproject.bramble.util.LogUtils.logException;
/**
@@ -55,7 +58,7 @@ import static org.briarproject.bramble.util.LogUtils.logException;
class DuplexOutgoingSession implements SyncSession, EventListener {
private static final Logger LOG =
Logger.getLogger(DuplexOutgoingSession.class.getName());
getLogger(DuplexOutgoingSession.class.getName());
private static final ThrowingRunnable<IOException> CLOSE = () -> {
};
@@ -103,6 +106,8 @@ class DuplexOutgoingSession implements SyncSession, EventListener {
public void run() throws IOException {
eventBus.addListener(this);
try {
// Send our supported protocol versions
recordWriter.writeVersions(new Versions(SUPPORTED_VERSIONS));
// Start a query for each type of record
generateAck();
generateBatch();

9
bramble-core/src/main/java/org/briarproject/bramble/sync/IncomingSession.java
View File

@@ -18,6 +18,7 @@ import org.briarproject.bramble.api.sync.Offer;
import org.briarproject.bramble.api.sync.Request;
import org.briarproject.bramble.api.sync.SyncRecordReader;
import org.briarproject.bramble.api.sync.SyncSession;
import org.briarproject.bramble.api.sync.Versions;
import java.io.IOException;
import java.util.concurrent.Executor;
@@ -25,6 +26,7 @@ import java.util.logging.Logger;
import javax.annotation.concurrent.ThreadSafe;
import static java.util.logging.Level.INFO;
import static java.util.logging.Level.WARNING;
import static org.briarproject.bramble.api.lifecycle.LifecycleManager.LifecycleState.STOPPING;
import static org.briarproject.bramble.util.LogUtils.logException;
@@ -80,6 +82,13 @@ class IncomingSession implements SyncSession, EventListener {
} else if (recordReader.hasRequest()) {
Request r = recordReader.readRequest();
dbExecutor.execute(new ReceiveRequest(r));
} else if (recordReader.hasVersions()) {
Versions v = recordReader.readVersions();
// TODO: Store remote peer's supported versions
if (LOG.isLoggable(INFO)) {
LOG.info("Received supported versions: "
+ v.getSupportedVersions());
}
} else {
// unknown records are ignored in RecordReader#eof()
throw new FormatException();

7
bramble-core/src/main/java/org/briarproject/bramble/sync/SimplexOutgoingSession.java
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@@ -15,6 +15,7 @@ import org.briarproject.bramble.api.sync.Ack;
import org.briarproject.bramble.api.sync.Message;
import org.briarproject.bramble.api.sync.SyncRecordWriter;
import org.briarproject.bramble.api.sync.SyncSession;
import org.briarproject.bramble.api.sync.Versions;
import org.briarproject.bramble.api.transport.StreamWriter;
import java.io.IOException;
@@ -29,9 +30,11 @@ import javax.annotation.concurrent.ThreadSafe;
import static java.util.logging.Level.INFO;
import static java.util.logging.Level.WARNING;
import static java.util.logging.Logger.getLogger;
import static org.briarproject.bramble.api.lifecycle.LifecycleManager.LifecycleState.STOPPING;
import static org.briarproject.bramble.api.record.Record.MAX_RECORD_PAYLOAD_BYTES;
import static org.briarproject.bramble.api.sync.SyncConstants.MAX_MESSAGE_IDS;
import static org.briarproject.bramble.api.sync.SyncConstants.SUPPORTED_VERSIONS;
import static org.briarproject.bramble.util.LogUtils.logException;
/**
@@ -44,7 +47,7 @@ import static org.briarproject.bramble.util.LogUtils.logException;
class SimplexOutgoingSession implements SyncSession, EventListener {
private static final Logger LOG =
Logger.getLogger(SimplexOutgoingSession.class.getName());
getLogger(SimplexOutgoingSession.class.getName());
private static final ThrowingRunnable<IOException> CLOSE = () -> {
};
@@ -80,6 +83,8 @@ class SimplexOutgoingSession implements SyncSession, EventListener {
public void run() throws IOException {
eventBus.addListener(this);
try {
// Send our supported protocol versions
recordWriter.writeVersions(new Versions(SUPPORTED_VERSIONS));
// Start a query for each type of record
dbExecutor.execute(new GenerateAck());
dbExecutor.execute(new GenerateBatch());