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Add support for configuring a signal proxy.
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moxie0 committed Feb 2, 2021
1 parent 53177bf commit 7f2b617
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Showing 7 changed files with 373 additions and 16 deletions.
Expand Up @@ -185,6 +185,7 @@ public SignalServiceNetworkAccess(Context context) {
new SignalStorageUrl[] {egyptGoogleStorage, baseGoogleStorage, baseAndroidStorage, mapsOneAndroidStorage, mapsTwoAndroidStorage, mailAndroidStorage},
interceptors,
dns,
Optional.absent(),
zkGroupServerPublicParams));

put(COUNTRY_CODE_UAE, new SignalServiceConfiguration(new SignalServiceUrl[] {uaeGoogleService, baseAndroidService, baseGoogleService, mapsOneAndroidService, mapsTwoAndroidService, mailAndroidService},
Expand All @@ -195,6 +196,7 @@ public SignalServiceNetworkAccess(Context context) {
new SignalStorageUrl[] {uaeGoogleStorage, baseGoogleStorage, baseAndroidStorage, mapsOneAndroidStorage, mapsTwoAndroidStorage, mailAndroidStorage},
interceptors,
dns,
Optional.absent(),
zkGroupServerPublicParams));

put(COUNTRY_CODE_OMAN, new SignalServiceConfiguration(new SignalServiceUrl[] {omanGoogleService, baseAndroidService, baseGoogleService, mapsOneAndroidService, mapsTwoAndroidService, mailAndroidService},
Expand All @@ -205,6 +207,7 @@ public SignalServiceNetworkAccess(Context context) {
new SignalStorageUrl[] {omanGoogleStorage, baseGoogleStorage, baseAndroidStorage, mapsOneAndroidStorage, mapsTwoAndroidStorage, mailAndroidStorage},
interceptors,
dns,
Optional.absent(),
zkGroupServerPublicParams));


Expand All @@ -216,6 +219,7 @@ public SignalServiceNetworkAccess(Context context) {
new SignalStorageUrl[] {qatarGoogleStorage, baseGoogleStorage, baseAndroidStorage, mapsOneAndroidStorage, mapsTwoAndroidStorage, mailAndroidStorage},
interceptors,
dns,
Optional.absent(),
zkGroupServerPublicParams));
}};

Expand All @@ -227,6 +231,7 @@ public SignalServiceNetworkAccess(Context context) {
new SignalStorageUrl[] {new SignalStorageUrl(BuildConfig.STORAGE_URL, new SignalServiceTrustStore(context))},
interceptors,
dns,
Optional.absent(),
zkGroupServerPublicParams);

this.censoredCountries = this.censorshipConfiguration.keySet().toArray(new String[0]);
Expand Down
Expand Up @@ -243,7 +243,8 @@ public SignalServiceMessagePipe createMessagePipe() {
Optional.of(credentialsProvider), signalAgent, connectivityListener,
sleepTimer,
urls.getNetworkInterceptors(),
urls.getDns());
urls.getDns(),
urls.getSignalProxy());

return new SignalServiceMessagePipe(webSocket, Optional.of(credentialsProvider), clientZkProfileOperations);
}
Expand All @@ -254,7 +255,8 @@ public SignalServiceMessagePipe createUnidentifiedMessagePipe() {
Optional.<CredentialsProvider>absent(), signalAgent, connectivityListener,
sleepTimer,
urls.getNetworkInterceptors(),
urls.getDns());
urls.getDns(),
urls.getSignalProxy());

return new SignalServiceMessagePipe(webSocket, Optional.of(credentialsProvider), clientZkProfileOperations);
}
Expand Down
@@ -0,0 +1,306 @@
package org.whispersystems.signalservice.api.util;

import org.whispersystems.libsignal.util.guava.Optional;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.SocketException;
import java.net.SocketOption;
import java.net.UnknownHostException;
import java.nio.channels.SocketChannel;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.util.List;
import java.util.Set;

import javax.net.SocketFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;

import okhttp3.Dns;

public class TlsProxySocketFactory extends SocketFactory {

private final SSLSocketFactory system;

private final String proxyHost;
private final int proxyPort;
private final Optional<Dns> dns;

public TlsProxySocketFactory(String proxyHost, int proxyPort, Optional<Dns> dns) {
try {
SSLContext context = SSLContext.getInstance("TLS");
context.init(null, null, null);

this.system = context.getSocketFactory();
this.proxyHost = proxyHost;
this.proxyPort = proxyPort;
this.dns = dns;
} catch (NoSuchAlgorithmException | KeyManagementException e) {
throw new AssertionError(e);
}
}

@Override
public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
if (dns.isPresent()) {
List<InetAddress> resolved = dns.get().lookup(host);

if (resolved.size() > 0) {
return createSocket(resolved.get(0), port);
}
}

return new ProxySocket(system.createSocket(proxyHost, proxyPort));
}

@Override
public Socket createSocket(String host, int port, InetAddress localHost, int localPort) throws IOException, UnknownHostException {
if (dns.isPresent()) {
List<InetAddress> resolved = dns.get().lookup(host);

if (resolved.size() > 0) {
return createSocket(resolved.get(0), port, localHost, localPort);
}
}

return new ProxySocket(system.createSocket(proxyHost, proxyPort, localHost, localPort));
}

@Override
public Socket createSocket(InetAddress host, int port) throws IOException {
return new ProxySocket(system.createSocket(proxyHost, proxyPort));
}

@Override
public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) throws IOException {
return new ProxySocket(system.createSocket(proxyHost, proxyPort, localAddress, localPort));
}

@Override
public Socket createSocket() throws IOException {
SSLSocket socket = (SSLSocket)system.createSocket(proxyHost, proxyPort);
socket.startHandshake();

return new ProxySocket(socket);
}

private static class ProxySocket extends Socket {

private final Socket delegate;

private ProxySocket(Socket delegate) {
this.delegate = delegate;
}

@Override
public void bind(SocketAddress bindpoint) throws IOException {
delegate.bind(bindpoint);
}

@Override
public InetAddress getInetAddress() {
return delegate.getInetAddress();
}

@Override
public InetAddress getLocalAddress() {
return delegate.getLocalAddress();
}

@Override
public int getPort() {
return delegate.getPort();
}

@Override
public int getLocalPort() {
return delegate.getLocalPort();
}

@Override
public SocketAddress getRemoteSocketAddress() {
return delegate.getRemoteSocketAddress();
}

@Override
public SocketAddress getLocalSocketAddress() {
return delegate.getLocalSocketAddress();
}

@Override
public SocketChannel getChannel() {
return delegate.getChannel();
}

@Override
public InputStream getInputStream() throws IOException {
return delegate.getInputStream();
}

@Override
public OutputStream getOutputStream() throws IOException {
return delegate.getOutputStream();
}

@Override
public void setTcpNoDelay(boolean on) throws SocketException {
delegate.setTcpNoDelay(on);
}

@Override
public boolean getTcpNoDelay() throws SocketException {
return delegate.getTcpNoDelay();
}

@Override
public void setSoLinger(boolean on, int linger) throws SocketException {
delegate.setSoLinger(on, linger);
}

@Override
public int getSoLinger() throws SocketException {
return delegate.getSoLinger();
}

@Override
public void sendUrgentData(int data) throws IOException {
delegate.sendUrgentData(data);
}

@Override
public void setOOBInline(boolean on) throws SocketException {
delegate.setOOBInline(on);
}

@Override
public boolean getOOBInline() throws SocketException {
return delegate.getOOBInline();
}

@Override
public void setSoTimeout(int timeout) throws SocketException {
delegate.setSoTimeout(timeout);
}

@Override
public int getSoTimeout() throws SocketException {
return delegate.getSoTimeout();
}

@Override
public void setSendBufferSize(int size) throws SocketException {
delegate.setSendBufferSize(size);
}

@Override
public int getSendBufferSize() throws SocketException {
return delegate.getSendBufferSize();
}

@Override
public void setReceiveBufferSize(int size) throws SocketException {
delegate.setReceiveBufferSize(size);
}

@Override
public int getReceiveBufferSize() throws SocketException {
return delegate.getReceiveBufferSize();
}

@Override
public void setKeepAlive(boolean on) throws SocketException {
delegate.setKeepAlive(on);
}

@Override
public boolean getKeepAlive() throws SocketException {
return delegate.getKeepAlive();
}

@Override
public void setTrafficClass(int tc) throws SocketException {
delegate.setTrafficClass(tc);
}

@Override
public int getTrafficClass() throws SocketException {
return delegate.getTrafficClass();
}

@Override
public void setReuseAddress(boolean on) throws SocketException {
delegate.setReuseAddress(on);
}

@Override
public boolean getReuseAddress() throws SocketException {
return delegate.getReuseAddress();
}

@Override
public void close() throws IOException {
delegate.close();
}

@Override
public void shutdownInput() throws IOException {
delegate.shutdownInput();
}

@Override
public void shutdownOutput() throws IOException {
delegate.shutdownOutput();
}

@Override
public String toString() {
return delegate.toString();
}

@Override
public boolean isConnected() {
return delegate.isConnected();
}

@Override
public boolean isBound() {
return delegate.isBound();
}

@Override
public boolean isClosed() {
return delegate.isClosed();
}

@Override
public boolean isInputShutdown() {
return delegate.isInputShutdown();
}

@Override
public boolean isOutputShutdown() {
return delegate.isOutputShutdown();
}

@Override
public void setPerformancePreferences(int connectionTime, int latency, int bandwidth) {
delegate.setPerformancePreferences(connectionTime, latency, bandwidth);
}

@Override
public void connect(SocketAddress endpoint) throws IOException {
// Already connected
}

@Override
public void connect(SocketAddress endpoint, int timeout) throws IOException {
// Already connected
}
}
}
@@ -0,0 +1,19 @@
package org.whispersystems.signalservice.internal.configuration;

public class SignalProxy {
private final String host;
private final int port;

public SignalProxy(String host, int port) {
this.host = host;
this.port = port;
}

public String getHost() {
return host;
}

public int getPort() {
return port;
}
}

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