mirror of https://github.com/i2p-zero/i2p-zero
knaccc
5 years ago
parent
9a0f72d3d0
commit
7b6a21c15a
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#!/bin/bash
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exec 3<>/dev/tcp/localhost/30000; echo "$1 $2 $3" >&3; cat <&3
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@ -0,0 +1,114 @@
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package org.getmonero.i2p.embedded;
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import net.i2p.data.Base64;
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import net.i2p.i2ptunnel.I2PTunnel;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.InputStreamReader;
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import java.io.PrintWriter;
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import java.net.InetAddress;
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import java.net.ServerSocket;
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import java.nio.file.Files;
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import java.util.HashMap;
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import java.util.Map;
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public class TunnelControl implements Runnable {
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private Map<Integer, I2PTunnel> clientTunnels = new HashMap<>();
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private Map<String, I2PTunnel> serverTunnels = new HashMap<>();
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private int clientPortSeq = 30000;
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private int serverSeq = 0;
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private String tunnelConfigDirPrefix;
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public TunnelControl(File tunnelConfigDir) {
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tunnelConfigDir.delete();
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tunnelConfigDir.mkdir();
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this.tunnelConfigDirPrefix = tunnelConfigDir.getAbsolutePath() + File.separator;
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}
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@Override
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public void run() {
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// listen for socket connections to the tunnel controller.
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// listen for the commands on port 30000:
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// server.create <host> <port> // returns a newly created destination public key, which will listen for i2p connections and forward them to the specified host and port
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// server.destroy <i2p destination public key> // closes the tunnel listening for connections on the specified port, and returns OK
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// client.create <i2p destination public key> // returns a newly created localhost port number, where connections will be sent over I2P to the destination public key
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// client.destroy <port> // closes the tunnel listening for connections on the specified port, and returns OK
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//
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// send a command with bash: exec 3<>/dev/tcp/localhost/30000; echo "server.create localhost 80" >&3; cat <&3
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//
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try (var listener = new ServerSocket(clientPortSeq++, 0, InetAddress.getLoopbackAddress())) {
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while (true) {
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try (var socket = listener.accept()) {
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var out = new PrintWriter(socket.getOutputStream(), true);
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var in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
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var args = in.readLine().split(" ");
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if(args[0].equals("server.create")) {
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String destHost = args[1];
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String destPort = args[2];
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String seckeyPath = tunnelConfigDirPrefix + "seckey."+serverSeq+".dat";
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String pubkeyPath = tunnelConfigDirPrefix + "pubkey."+serverSeq+".dat";
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serverSeq++;
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new I2PTunnel(new String[]{"-die", "-nocli", "-e", "genkeys " + seckeyPath + " " + pubkeyPath});
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String destPubKey = Base64.encode(Files.readAllBytes(new File(pubkeyPath).toPath()));
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// listen using the I2P server keypair, and forward incoming connections to a destination and port
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new Thread() {
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@Override
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public void run() {
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I2PTunnel t = new I2PTunnel(new String[]{"-die", "-nocli", "-e", "server "+destHost+" "+destPort+" " + seckeyPath});
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serverTunnels.put(destPubKey, t);
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}
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}.start();
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out.println(destPubKey);
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}
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else if(args[0].equals("server.destroy")) {
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String destPubKey = args[1];
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new Thread() {
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@Override
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public void run() {
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var t = serverTunnels.get(destPubKey);
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serverTunnels.remove(destPubKey);
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t.runClose(new String[]{"forced", "all"}, t);
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}
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}.start();
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out.println("OK");
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}
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else if(args[0].equals("client.create")) {
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String destPubKey = args[1];
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int port = clientPortSeq++;
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new Thread() {
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@Override
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public void run() {
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var t = new I2PTunnel(new String[]{"-die", "-nocli", "-e", "config localhost 7654", "-e", "client " + port + " " + destPubKey});
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clientTunnels.put(port, t);
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}
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}.start();
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out.println(port);
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}
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if(args[0].equals("client.destroy")) {
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int port = Integer.parseInt(args[1]);
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new Thread() {
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@Override
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public void run() {
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var t = clientTunnels.get(port);
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clientTunnels.remove(port);
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t.runClose(new String[]{"forced", "all"}, t);
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}
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}.start();
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out.println("OK");
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}
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}
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catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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