## Zero dependency, small footprint, cross-platform I2P Java Router with GUI, simple tunnel/socks controller and SAM interface ## This project will run under Linux, and build native launchers for Linux, MacOS and Windows. The launchers will include the I2P router, a SAM listener, simple tunnel and socks tunnel functionality and a minimal JVM. ## GUI Screenshots
## Footprint The zero-dependency distribution sizes are as follows: OS | Uncompressed size (MB) | xz Compressed size (MB) ------------ | ------------- | ------------- Linux | 42.6 | 23.4 MacOS | 40.2 | 21.1 Windows | 33.1 | 20.8 ## Building the launchers From a freshly installed Ubuntu system, first ensure git is installed: `sudo apt install git` Then, retrieve this project from git: `git clone https://github.com/knaccc/i2p-zero.git` Note that the current version of this script uses jdk-11.0.2. If this version of Java becomes no longer available for download, then update the references to jdk-11.0.2 in java-config.sh to the later version. To locate a recent JDK download URL, see https://jdk.java.net/11/ Also note that JDKs for Linux, MacOS and Windows will be downloaded, which will total several hundred megabytes. Run the `bin/build-all.sh` script, which will in turn call the following scripts: 1. `bin/import-packages.sh` to retrieve the I2P Java sources, OpenJDK and the Ant build tool 2. `bin/build-original-i2p.sh` to build the I2P project retrieved from the I2P repository 3. `build-launcher.sh` to convert the I2P JARs to modules, compile the Java source code in this project, and then use the jlink tool to build zero-dependency platform-specific launchers. ## Running the launchers To run the Linux router, type: `dist/linux/router/bin/launch.sh` or `dist/linux/router/bin/launch-gui.sh` To run the MacOS router, type: `dist/mac/router/bin/launch.sh` or `dist/mac/router/bin/launch-gui.sh` For Windows, run: `dist/windows/router/bin/launch.bat` or `dist/windows/router/bin/launch-gui.bat` Note that for the Windows GUI to run, you may need to install the latest Microsoft Visual C++ Redistributable If it launches successfully, you'll see the message: ``` I2P router launched. SAM listening on port 7656. Press Ctrl-C to gracefully shut down the router (or send the SIGINT signal to the process). ``` ## Check that the I2P router is running and that it is listening for SAM connections `fuser 7656/tcp` ## Tunnel control Note that it may take a short while for new tunnels to be set up. Call the `dist/linux/router/bin/tunnel-control.sh` script as follows to create and destroy tunnels: #### Listen for i2p connections and forward them to the specified host and port. Returns a newly created destination public key. `tunnel-control.sh server.create ` #### Close the tunnel listening for connections on the specified destination public key. Returns "OK". `tunnel-control.sh server.destroy ` #### Create a tunnel that listens for connections on localhost and forwards connections over I2P to the specified destination public key. Returns a newly created localhost port number. `tunnel-control.sh client.create ` #### Close the tunnel listening for connections on the specified port. Returns "OK". `tunnel-control.sh client.destroy ` #### Create a socks tunnel, listening on the specified port `tunnel-control.sh socks.create ` #### Destroy the socks tunnel listening on the specified port `tunnel-control.sh socks.destroy ` #### Start a SAM listener on port 7656. Returns "OK" `tunnel-control.sh sam.create` ## Watch the I2P log for messages `tail -f dist/linux/router/i2p.config/wrapper.log`