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Code Issues Projects Releases Wiki Activity

Remove old v2 onion code from TorPlugin

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This commit is contained in:
Torsten Grote
2021-11-17 10:25:43 -03:00
parent 5a8b822e08
commit 0dc2aba22f
3 changed files with 39 additions and 115 deletions
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119
bramble-core/src/main/java/org/briarproject/bramble/plugin/tor/TorPlugin.java
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@@ -79,9 +79,7 @@ import static org.briarproject.bramble.api.plugin.TorConstants.DEFAULT_PREF_PLUG
import static org.briarproject.bramble.api.plugin.TorConstants.DEFAULT_PREF_TOR_MOBILE;
import static org.briarproject.bramble.api.plugin.TorConstants.DEFAULT_PREF_TOR_NETWORK;
import static org.briarproject.bramble.api.plugin.TorConstants.DEFAULT_PREF_TOR_ONLY_WHEN_CHARGING;
import static org.briarproject.bramble.api.plugin.TorConstants.HS_PRIVATE_KEY_V2;
import static org.briarproject.bramble.api.plugin.TorConstants.HS_PRIVATE_KEY_V3;
import static org.briarproject.bramble.api.plugin.TorConstants.HS_V3_CREATED;
import static org.briarproject.bramble.api.plugin.TorConstants.ID;
import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_MOBILE;
import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_NETWORK;
@@ -90,12 +88,10 @@ import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_NETWORK_
import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_NETWORK_WITH_BRIDGES;
import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_ONLY_WHEN_CHARGING;
import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_PORT;
import static org.briarproject.bramble.api.plugin.TorConstants.PROP_ONION_V2;
import static org.briarproject.bramble.api.plugin.TorConstants.PROP_ONION_V3;
import static org.briarproject.bramble.api.plugin.TorConstants.REASON_BATTERY;
import static org.briarproject.bramble.api.plugin.TorConstants.REASON_COUNTRY_BLOCKED;
import static org.briarproject.bramble.api.plugin.TorConstants.REASON_MOBILE_DATA;
import static org.briarproject.bramble.api.plugin.TorConstants.V3_MIGRATION_PERIOD_MS;
import static org.briarproject.bramble.plugin.tor.TorRendezvousCrypto.SEED_BYTES;
import static org.briarproject.bramble.util.IoUtils.copyAndClose;
import static org.briarproject.bramble.util.IoUtils.tryToClose;
@@ -115,7 +111,6 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
private static final String OWNER = "__OwningControllerProcess";
private static final int COOKIE_TIMEOUT_MS = 3000;
private static final int COOKIE_POLLING_INTERVAL_MS = 200;
private static final Pattern ONION_V2 = Pattern.compile("[a-z2-7]{16}");
private static final Pattern ONION_V3 = Pattern.compile("[a-z2-7]{56}");
private final Executor ioExecutor, wakefulIoExecutor;
@@ -135,8 +130,8 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
private final int maxIdleTime;
private final int socketTimeout;
private final File torDirectory, geoIpFile, configFile;
private int torSocksPort;
private int torControlPort;
private final int torSocksPort;
private final int torControlPort;
private final File doneFile, cookieFile;
private final AtomicBoolean used = new AtomicBoolean(false);
@@ -284,6 +279,7 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
if (LOG.isLoggable(INFO)) listFiles(torDirectory);
throw new PluginException();
}
//noinspection BusyWait
Thread.sleep(COOKIE_POLLING_INTERVAL_MS);
}
LOG.info("Auth cookie created");
@@ -412,6 +408,7 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
append(strb, "RunAsDaemon", 1);
append(strb, "SafeSocks", 1);
append(strb, "SocksPort", torSocksPort);
//noinspection CharsetObjectCanBeUsed
return new ByteArrayInputStream(
strb.toString().getBytes(Charset.forName("UTF-8")));
}
@@ -478,54 +475,10 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
private void publishHiddenService(String port) {
if (!state.isTorRunning()) return;
// TODO: Remove support for v2 hidden services after a reasonable
// migration period (migration started 2020-06-30)
String privKey2 = settings.get(HS_PRIVATE_KEY_V2);
String privKey3 = settings.get(HS_PRIVATE_KEY_V3);
String v3Created = settings.get(HS_V3_CREATED);
// Publish a v2 hidden service if we've already created one, and
// either we've never published a v3 hidden service or we're still
// in the migration period since first publishing it
if (!isNullOrEmpty(privKey2)) {
long now = clock.currentTimeMillis();
long then = v3Created == null ? now : Long.parseLong(v3Created);
if (now - then >= V3_MIGRATION_PERIOD_MS) retireV2HiddenService();
else publishV2HiddenService(port, privKey2);
}
publishV3HiddenService(port, privKey3);
}
private void publishV2HiddenService(String port, String privKey) {
LOG.info("Creating v2 hidden service");
Map<Integer, String> portLines = singletonMap(80, "127.0.0.1:" + port);
Map<String, String> response;
try {
response = controlConnection.addOnion(privKey, portLines);
} catch (IOException e) {
logException(LOG, WARNING, e);
return;
}
if (!response.containsKey(HS_ADDRESS)) {
LOG.warning("Tor did not return a hidden service address");
return;
}
String onion2 = response.get(HS_ADDRESS);
if (LOG.isLoggable(INFO)) {
LOG.info("V2 hidden service " + scrubOnion(onion2));
}
// The hostname has already been published and the private key stored
}
private void retireV2HiddenService() {
LOG.info("Retiring v2 hidden service");
TransportProperties p = new TransportProperties();
p.put(PROP_ONION_V2, "");
callback.mergeLocalProperties(p);
Settings s = new Settings();
s.put(HS_PRIVATE_KEY_V2, "");
callback.mergeSettings(s);
}
private void publishV3HiddenService(String port, @Nullable String privKey) {
LOG.info("Creating v3 hidden service");
Map<Integer, String> portLines = singletonMap(80, "127.0.0.1:" + port);
@@ -562,7 +515,6 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
// Save the hidden service's private key for next time
Settings s = new Settings();
s.put(HS_PRIVATE_KEY_V3, response.get(HS_PRIVKEY));
s.put(HS_V3_CREATED, String.valueOf(clock.currentTimeMillis()));
callback.mergeSettings(s);
}
}
@@ -669,49 +621,30 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
@Override
public DuplexTransportConnection createConnection(TransportProperties p) {
if (getState() != ACTIVE) return null;
// TODO: Remove support for v2 hidden services after a reasonable
// migration period (migration started 2020-06-30)
String bestOnion = null, version = null;
String onion2 = p.get(PROP_ONION_V2);
String onion3 = p.get(PROP_ONION_V3);
if (!isNullOrEmpty(onion2)) {
if (ONION_V2.matcher(onion2).matches()) {
bestOnion = onion2;
version = "v2";
} else {
// Don't scrub the address so we can find the problem
if (LOG.isLoggable(INFO))
LOG.info("Invalid v2 hostname: " + onion2);
if (onion3 != null && !ONION_V3.matcher(onion3).matches()) {
// Don't scrub the address so we can find the problem
if (LOG.isLoggable(INFO)) {
LOG.info("Invalid v3 hostname: " + onion3);
}
onion3 = null;
}
if (!isNullOrEmpty(onion3)) {
if (ONION_V3.matcher(onion3).matches()) {
bestOnion = onion3;
version = "v3";
} else {
// Don't scrub the address so we can find the problem
if (LOG.isLoggable(INFO))
LOG.info("Invalid v3 hostname: " + onion3);
}
}
if (bestOnion == null) return null;
if (onion3 == null) return null;
Socket s = null;
try {
if (LOG.isLoggable(INFO)) {
LOG.info("Connecting to " + version + " "
+ scrubOnion(bestOnion));
LOG.info("Connecting to v3 " + scrubOnion(onion3));
}
s = torSocketFactory.createSocket(bestOnion + ".onion", 80);
s = torSocketFactory.createSocket(onion3 + ".onion", 80);
s.setSoTimeout(socketTimeout);
if (LOG.isLoggable(INFO)) {
LOG.info("Connected to " + version + " "
+ scrubOnion(bestOnion));
LOG.info("Connected to v3 " + scrubOnion(onion3));
}
return new TorTransportConnection(this, s);
} catch (IOException e) {
if (LOG.isLoggable(INFO)) {
LOG.info("Could not connect to " + version + " "
+ scrubOnion(bestOnion) + ": " + e.toString());
LOG.info("Could not connect to v3 "
+ scrubOnion(onion3) + ": " + e.toString());
}
tryToClose(s, LOG, WARNING);
return null;
@@ -1005,17 +938,17 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
@Nullable
private ServerSocket serverSocket = null;
synchronized void setStarted() {
private synchronized void setStarted() {
started = true;
callback.pluginStateChanged(getState());
}
synchronized boolean isTorRunning() {
private synchronized boolean isTorRunning() {
return started && !stopped;
}
@Nullable
synchronized ServerSocket setStopped() {
private synchronized ServerSocket setStopped() {
stopped = true;
ServerSocket ss = serverSocket;
serverSocket = null;
@@ -1023,44 +956,44 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
return ss;
}
synchronized void setBootstrapped() {
private synchronized void setBootstrapped() {
bootstrapped = true;
callback.pluginStateChanged(getState());
}
synchronized boolean getAndSetCircuitBuilt() {
private synchronized boolean getAndSetCircuitBuilt() {
boolean firstCircuit = !circuitBuilt;
circuitBuilt = true;
callback.pluginStateChanged(getState());
return firstCircuit;
}
synchronized void enableNetwork(boolean enable) {
private synchronized void enableNetwork(boolean enable) {
networkInitialised = true;
networkEnabled = enable;
if (!enable) circuitBuilt = false;
callback.pluginStateChanged(getState());
}
synchronized void setReasonsDisabled(int reasonsDisabled) {
private synchronized void setReasonsDisabled(int reasonsDisabled) {
settingsChecked = true;
this.reasonsDisabled = reasonsDisabled;
callback.pluginStateChanged(getState());
}
// Doesn't affect getState()
synchronized boolean setServerSocket(ServerSocket ss) {
private synchronized boolean setServerSocket(ServerSocket ss) {
if (stopped || serverSocket != null) return false;
serverSocket = ss;
return true;
}
// Doesn't affect getState()
synchronized void clearServerSocket(ServerSocket ss) {
private synchronized void clearServerSocket(ServerSocket ss) {
if (serverSocket == ss) serverSocket = null;
}
synchronized State getState() {
private synchronized State getState() {
if (!started || stopped || !settingsChecked) {
return STARTING_STOPPING;
}
@@ -1070,7 +1003,7 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
return bootstrapped && circuitBuilt ? ACTIVE : ENABLING;
}
synchronized int getReasonsDisabled() {
private synchronized int getReasonsDisabled() {
return getState() == DISABLED ? reasonsDisabled : 0;
}
}