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Add support for configuring a signal proxy.
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306 changes: 306 additions & 0 deletions
306
...ervice/src/main/java/org/whispersystems/signalservice/api/util/TlsProxySocketFactory.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,306 @@ | ||
| package org.whispersystems.signalservice.api.util; | ||
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| import org.whispersystems.libsignal.util.guava.Optional; | ||
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| 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; | ||
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| import javax.net.SocketFactory; | ||
| import javax.net.ssl.SSLContext; | ||
| import javax.net.ssl.SSLSocket; | ||
| import javax.net.ssl.SSLSocketFactory; | ||
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| import okhttp3.Dns; | ||
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| public class TlsProxySocketFactory extends SocketFactory { | ||
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| private final SSLSocketFactory system; | ||
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| private final String proxyHost; | ||
| private final int proxyPort; | ||
| private final Optional<Dns> dns; | ||
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| public TlsProxySocketFactory(String proxyHost, int proxyPort, Optional<Dns> dns) { | ||
| try { | ||
| SSLContext context = SSLContext.getInstance("TLS"); | ||
| context.init(null, null, null); | ||
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| this.system = context.getSocketFactory(); | ||
| this.proxyHost = proxyHost; | ||
| this.proxyPort = proxyPort; | ||
| this.dns = dns; | ||
| } catch (NoSuchAlgorithmException | KeyManagementException e) { | ||
| throw new AssertionError(e); | ||
| } | ||
| } | ||
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| @Override | ||
| public Socket createSocket(String host, int port) throws IOException, UnknownHostException { | ||
| if (dns.isPresent()) { | ||
| List<InetAddress> resolved = dns.get().lookup(host); | ||
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| if (resolved.size() > 0) { | ||
| return createSocket(resolved.get(0), port); | ||
| } | ||
| } | ||
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| return new ProxySocket(system.createSocket(proxyHost, proxyPort)); | ||
| } | ||
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| @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); | ||
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| if (resolved.size() > 0) { | ||
| return createSocket(resolved.get(0), port, localHost, localPort); | ||
| } | ||
| } | ||
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| return new ProxySocket(system.createSocket(proxyHost, proxyPort, localHost, localPort)); | ||
| } | ||
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| @Override | ||
| public Socket createSocket(InetAddress host, int port) throws IOException { | ||
| return new ProxySocket(system.createSocket(proxyHost, proxyPort)); | ||
| } | ||
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| @Override | ||
| public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) throws IOException { | ||
| return new ProxySocket(system.createSocket(proxyHost, proxyPort, localAddress, localPort)); | ||
| } | ||
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| @Override | ||
| public Socket createSocket() throws IOException { | ||
| SSLSocket socket = (SSLSocket)system.createSocket(proxyHost, proxyPort); | ||
| socket.startHandshake(); | ||
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| return new ProxySocket(socket); | ||
| } | ||
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| private static class ProxySocket extends Socket { | ||
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| private final Socket delegate; | ||
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| private ProxySocket(Socket delegate) { | ||
| this.delegate = delegate; | ||
| } | ||
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| @Override | ||
| public void bind(SocketAddress bindpoint) throws IOException { | ||
| delegate.bind(bindpoint); | ||
| } | ||
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| @Override | ||
| public InetAddress getInetAddress() { | ||
| return delegate.getInetAddress(); | ||
| } | ||
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| @Override | ||
| public InetAddress getLocalAddress() { | ||
| return delegate.getLocalAddress(); | ||
| } | ||
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| @Override | ||
| public int getPort() { | ||
| return delegate.getPort(); | ||
| } | ||
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| @Override | ||
| public int getLocalPort() { | ||
| return delegate.getLocalPort(); | ||
| } | ||
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| @Override | ||
| public SocketAddress getRemoteSocketAddress() { | ||
| return delegate.getRemoteSocketAddress(); | ||
| } | ||
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| @Override | ||
| public SocketAddress getLocalSocketAddress() { | ||
| return delegate.getLocalSocketAddress(); | ||
| } | ||
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| @Override | ||
| public SocketChannel getChannel() { | ||
| return delegate.getChannel(); | ||
| } | ||
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| @Override | ||
| public InputStream getInputStream() throws IOException { | ||
| return delegate.getInputStream(); | ||
| } | ||
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| @Override | ||
| public OutputStream getOutputStream() throws IOException { | ||
| return delegate.getOutputStream(); | ||
| } | ||
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| @Override | ||
| public void setTcpNoDelay(boolean on) throws SocketException { | ||
| delegate.setTcpNoDelay(on); | ||
| } | ||
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| @Override | ||
| public boolean getTcpNoDelay() throws SocketException { | ||
| return delegate.getTcpNoDelay(); | ||
| } | ||
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| @Override | ||
| public void setSoLinger(boolean on, int linger) throws SocketException { | ||
| delegate.setSoLinger(on, linger); | ||
| } | ||
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| @Override | ||
| public int getSoLinger() throws SocketException { | ||
| return delegate.getSoLinger(); | ||
| } | ||
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| @Override | ||
| public void sendUrgentData(int data) throws IOException { | ||
| delegate.sendUrgentData(data); | ||
| } | ||
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| @Override | ||
| public void setOOBInline(boolean on) throws SocketException { | ||
| delegate.setOOBInline(on); | ||
| } | ||
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| @Override | ||
| public boolean getOOBInline() throws SocketException { | ||
| return delegate.getOOBInline(); | ||
| } | ||
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| @Override | ||
| public void setSoTimeout(int timeout) throws SocketException { | ||
| delegate.setSoTimeout(timeout); | ||
| } | ||
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| @Override | ||
| public int getSoTimeout() throws SocketException { | ||
| return delegate.getSoTimeout(); | ||
| } | ||
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| @Override | ||
| public void setSendBufferSize(int size) throws SocketException { | ||
| delegate.setSendBufferSize(size); | ||
| } | ||
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| @Override | ||
| public int getSendBufferSize() throws SocketException { | ||
| return delegate.getSendBufferSize(); | ||
| } | ||
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| @Override | ||
| public void setReceiveBufferSize(int size) throws SocketException { | ||
| delegate.setReceiveBufferSize(size); | ||
| } | ||
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| @Override | ||
| public int getReceiveBufferSize() throws SocketException { | ||
| return delegate.getReceiveBufferSize(); | ||
| } | ||
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| @Override | ||
| public void setKeepAlive(boolean on) throws SocketException { | ||
| delegate.setKeepAlive(on); | ||
| } | ||
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| @Override | ||
| public boolean getKeepAlive() throws SocketException { | ||
| return delegate.getKeepAlive(); | ||
| } | ||
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| @Override | ||
| public void setTrafficClass(int tc) throws SocketException { | ||
| delegate.setTrafficClass(tc); | ||
| } | ||
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| @Override | ||
| public int getTrafficClass() throws SocketException { | ||
| return delegate.getTrafficClass(); | ||
| } | ||
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| @Override | ||
| public void setReuseAddress(boolean on) throws SocketException { | ||
| delegate.setReuseAddress(on); | ||
| } | ||
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| @Override | ||
| public boolean getReuseAddress() throws SocketException { | ||
| return delegate.getReuseAddress(); | ||
| } | ||
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| @Override | ||
| public void close() throws IOException { | ||
| delegate.close(); | ||
| } | ||
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| @Override | ||
| public void shutdownInput() throws IOException { | ||
| delegate.shutdownInput(); | ||
| } | ||
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| @Override | ||
| public void shutdownOutput() throws IOException { | ||
| delegate.shutdownOutput(); | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return delegate.toString(); | ||
| } | ||
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| @Override | ||
| public boolean isConnected() { | ||
| return delegate.isConnected(); | ||
| } | ||
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| @Override | ||
| public boolean isBound() { | ||
| return delegate.isBound(); | ||
| } | ||
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| @Override | ||
| public boolean isClosed() { | ||
| return delegate.isClosed(); | ||
| } | ||
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| @Override | ||
| public boolean isInputShutdown() { | ||
| return delegate.isInputShutdown(); | ||
| } | ||
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| @Override | ||
| public boolean isOutputShutdown() { | ||
| return delegate.isOutputShutdown(); | ||
| } | ||
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| @Override | ||
| public void setPerformancePreferences(int connectionTime, int latency, int bandwidth) { | ||
| delegate.setPerformancePreferences(connectionTime, latency, bandwidth); | ||
| } | ||
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| @Override | ||
| public void connect(SocketAddress endpoint) throws IOException { | ||
| // Already connected | ||
| } | ||
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| @Override | ||
| public void connect(SocketAddress endpoint, int timeout) throws IOException { | ||
| // Already connected | ||
| } | ||
| } | ||
| } |
19 changes: 19 additions & 0 deletions
19
...ce/src/main/java/org/whispersystems/signalservice/internal/configuration/SignalProxy.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| package org.whispersystems.signalservice.internal.configuration; | ||
|
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| public class SignalProxy { | ||
| private final String host; | ||
| private final int port; | ||
|
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| public SignalProxy(String host, int port) { | ||
| this.host = host; | ||
| this.port = port; | ||
| } | ||
|
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| public String getHost() { | ||
| return host; | ||
| } | ||
|
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| public int getPort() { | ||
| return port; | ||
| } | ||
| } |
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