mirror of
https://code.briarproject.org/briar/briar.git
synced 2026-02-12 18:59:06 +01:00
Changed the root package from net.sf.briar to org.briarproject.
This commit is contained in:
akwizgran
@@ -0,0 +1,273 @@
|
||||
package org.briarproject.plugins.modem;
|
||||
|
||||
import static java.util.logging.Level.INFO;
|
||||
import static java.util.logging.Level.WARNING;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import java.io.OutputStream;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Collection;
|
||||
import java.util.Collections;
|
||||
import java.util.Iterator;
|
||||
import java.util.List;
|
||||
import java.util.Map;
|
||||
import java.util.concurrent.CountDownLatch;
|
||||
import java.util.concurrent.Executor;
|
||||
import java.util.logging.Logger;
|
||||
|
||||
import org.briarproject.api.ContactId;
|
||||
import org.briarproject.api.TransportId;
|
||||
import org.briarproject.api.TransportProperties;
|
||||
import org.briarproject.api.crypto.PseudoRandom;
|
||||
import org.briarproject.api.plugins.duplex.DuplexPlugin;
|
||||
import org.briarproject.api.plugins.duplex.DuplexPluginCallback;
|
||||
import org.briarproject.api.plugins.duplex.DuplexTransportConnection;
|
||||
import org.briarproject.util.StringUtils;
|
||||
|
||||
class ModemPlugin implements DuplexPlugin, Modem.Callback {
|
||||
|
||||
static final byte[] TRANSPORT_ID =
|
||||
StringUtils.fromHexString("8f573867bedf54884b5868ee5d902832" +
|
||||
"ee5e522da84d0d431712bd672fbd2f79" +
|
||||
"262d27b93879b94ee9afbb80e7fc87fb");
|
||||
static final TransportId ID = new TransportId(TRANSPORT_ID);
|
||||
|
||||
private static final Logger LOG =
|
||||
Logger.getLogger(ModemPlugin.class.getName());
|
||||
|
||||
private final Executor pluginExecutor;
|
||||
private final ModemFactory modemFactory;
|
||||
private final SerialPortList serialPortList;
|
||||
private final DuplexPluginCallback callback;
|
||||
private final int maxFrameLength;
|
||||
private final long maxLatency, pollingInterval;
|
||||
private final boolean shuffle; // Used to disable shuffling for testing
|
||||
|
||||
private volatile boolean running = false;
|
||||
private volatile Modem modem = null;
|
||||
|
||||
ModemPlugin(Executor pluginExecutor, ModemFactory modemFactory,
|
||||
SerialPortList serialPortList, DuplexPluginCallback callback,
|
||||
int maxFrameLength, long maxLatency, long pollingInterval,
|
||||
boolean shuffle) {
|
||||
this.pluginExecutor = pluginExecutor;
|
||||
this.modemFactory = modemFactory;
|
||||
this.serialPortList = serialPortList;
|
||||
this.callback = callback;
|
||||
this.maxFrameLength = maxFrameLength;
|
||||
this.maxLatency = maxLatency;
|
||||
this.pollingInterval = pollingInterval;
|
||||
this.shuffle = shuffle;
|
||||
}
|
||||
|
||||
public TransportId getId() {
|
||||
return ID;
|
||||
}
|
||||
|
||||
public String getName() {
|
||||
return "MODEM_PLUGIN_NAME";
|
||||
}
|
||||
|
||||
public int getMaxFrameLength() {
|
||||
return maxFrameLength;
|
||||
}
|
||||
|
||||
public long getMaxLatency() {
|
||||
return maxLatency;
|
||||
}
|
||||
|
||||
public boolean start() {
|
||||
for(String portName : serialPortList.getPortNames()) {
|
||||
if(LOG.isLoggable(INFO))
|
||||
LOG.info("Trying to initialise modem on " + portName);
|
||||
modem = modemFactory.createModem(this, portName);
|
||||
try {
|
||||
if(!modem.start()) continue;
|
||||
if(LOG.isLoggable(INFO))
|
||||
LOG.info("Initialised modem on " + portName);
|
||||
running = true;
|
||||
return true;
|
||||
} catch(IOException e) {
|
||||
if(LOG.isLoggable(WARNING)) LOG.log(WARNING, e.toString(), e);
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
public void stop() {
|
||||
running = false;
|
||||
if(modem != null) {
|
||||
try {
|
||||
modem.stop();
|
||||
} catch(IOException e) {
|
||||
if(LOG.isLoggable(WARNING)) LOG.log(WARNING, e.toString(), e);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private boolean resetModem() {
|
||||
if(!running) return false;
|
||||
for(String portName : serialPortList.getPortNames()) {
|
||||
if(LOG.isLoggable(INFO))
|
||||
LOG.info("Trying to initialise modem on " + portName);
|
||||
modem = modemFactory.createModem(this, portName);
|
||||
try {
|
||||
if(!modem.start()) continue;
|
||||
if(LOG.isLoggable(INFO))
|
||||
LOG.info("Initialised modem on " + portName);
|
||||
return true;
|
||||
} catch(IOException e) {
|
||||
if(LOG.isLoggable(WARNING)) LOG.log(WARNING, e.toString(), e);
|
||||
}
|
||||
}
|
||||
running = false;
|
||||
return false;
|
||||
}
|
||||
|
||||
public boolean shouldPoll() {
|
||||
return true;
|
||||
}
|
||||
|
||||
public long getPollingInterval() {
|
||||
return pollingInterval;
|
||||
}
|
||||
|
||||
public void poll(Collection<ContactId> connected) {
|
||||
if(!connected.isEmpty()) return; // One at a time please
|
||||
pluginExecutor.execute(new Runnable() {
|
||||
public void run() {
|
||||
poll();
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
private void poll() {
|
||||
if(!running) return;
|
||||
// Get the ISO 3166 code for the caller's country
|
||||
String callerIso = callback.getLocalProperties().get("iso3166");
|
||||
if(StringUtils.isNullOrEmpty(callerIso)) return;
|
||||
// Call contacts one at a time in a random order
|
||||
Map<ContactId, TransportProperties> remote =
|
||||
callback.getRemoteProperties();
|
||||
List<ContactId> contacts = new ArrayList<ContactId>(remote.keySet());
|
||||
if(shuffle) Collections.shuffle(contacts);
|
||||
Iterator<ContactId> it = contacts.iterator();
|
||||
while(it.hasNext() && running) {
|
||||
ContactId c = it.next();
|
||||
// Get the ISO 3166 code for the callee's country
|
||||
TransportProperties properties = remote.get(c);
|
||||
if(properties == null) continue;
|
||||
String calleeIso = properties.get("iso3166");
|
||||
if(StringUtils.isNullOrEmpty(calleeIso)) continue;
|
||||
// Get the callee's phone number
|
||||
String number = properties.get("number");
|
||||
if(StringUtils.isNullOrEmpty(number)) continue;
|
||||
// Convert the number into direct dialling form
|
||||
number = CountryCodes.translate(number, callerIso, calleeIso);
|
||||
if(number == null) continue;
|
||||
// Dial the number
|
||||
try {
|
||||
if(!modem.dial(number)) continue;
|
||||
} catch(IOException e) {
|
||||
if(LOG.isLoggable(WARNING)) LOG.log(WARNING, e.toString(), e);
|
||||
if(resetModem()) continue;
|
||||
break;
|
||||
}
|
||||
if(LOG.isLoggable(INFO)) LOG.info("Outgoing call connected");
|
||||
ModemTransportConnection conn = new ModemTransportConnection();
|
||||
callback.outgoingConnectionCreated(c, conn);
|
||||
try {
|
||||
conn.waitForDisposal();
|
||||
} catch(InterruptedException e) {
|
||||
if(LOG.isLoggable(WARNING))
|
||||
LOG.warning("Interrupted while polling");
|
||||
Thread.currentThread().interrupt();
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public DuplexTransportConnection createConnection(ContactId c) {
|
||||
if(!running) return null;
|
||||
// Get the ISO 3166 code for the caller's country
|
||||
String fromIso = callback.getLocalProperties().get("iso3166");
|
||||
if(StringUtils.isNullOrEmpty(fromIso)) return null;
|
||||
// Get the ISO 3166 code for the callee's country
|
||||
TransportProperties properties = callback.getRemoteProperties().get(c);
|
||||
if(properties == null) return null;
|
||||
String toIso = properties.get("iso3166");
|
||||
if(StringUtils.isNullOrEmpty(toIso)) return null;
|
||||
// Get the callee's phone number
|
||||
String number = properties.get("number");
|
||||
if(StringUtils.isNullOrEmpty(number)) return null;
|
||||
// Convert the number into direct dialling form
|
||||
number = CountryCodes.translate(number, fromIso, toIso);
|
||||
if(number == null) return null;
|
||||
// Dial the number
|
||||
try {
|
||||
if(!modem.dial(number)) return null;
|
||||
} catch(IOException e) {
|
||||
if(LOG.isLoggable(WARNING)) LOG.log(WARNING, e.toString(), e);
|
||||
resetModem();
|
||||
return null;
|
||||
}
|
||||
return new ModemTransportConnection();
|
||||
}
|
||||
|
||||
public boolean supportsInvitations() {
|
||||
return false;
|
||||
}
|
||||
|
||||
public DuplexTransportConnection createInvitationConnection(PseudoRandom r,
|
||||
long timeout) {
|
||||
throw new UnsupportedOperationException();
|
||||
}
|
||||
|
||||
public void incomingCallConnected() {
|
||||
if(LOG.isLoggable(INFO)) LOG.info("Incoming call connected");
|
||||
callback.incomingConnectionCreated(new ModemTransportConnection());
|
||||
}
|
||||
|
||||
private class ModemTransportConnection
|
||||
implements DuplexTransportConnection {
|
||||
|
||||
private final CountDownLatch finished = new CountDownLatch(1);
|
||||
|
||||
public int getMaxFrameLength() {
|
||||
return maxFrameLength;
|
||||
}
|
||||
|
||||
public long getMaxLatency() {
|
||||
return maxLatency;
|
||||
}
|
||||
|
||||
public InputStream getInputStream() throws IOException {
|
||||
return modem.getInputStream();
|
||||
}
|
||||
|
||||
public OutputStream getOutputStream() throws IOException {
|
||||
return modem.getOutputStream();
|
||||
}
|
||||
|
||||
public boolean shouldFlush() {
|
||||
return true;
|
||||
}
|
||||
|
||||
public void dispose(boolean exception, boolean recognised) {
|
||||
if(LOG.isLoggable(INFO)) LOG.info("Call disconnected");
|
||||
try {
|
||||
modem.hangUp();
|
||||
} catch(IOException e) {
|
||||
if(LOG.isLoggable(WARNING)) LOG.log(WARNING, e.toString(), e);
|
||||
exception = true;
|
||||
}
|
||||
if(exception) resetModem();
|
||||
finished.countDown();
|
||||
}
|
||||
|
||||
private void waitForDisposal() throws InterruptedException {
|
||||
finished.await();
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user