package com.ryanmichela.sshd; import org.apache.sshd.common.file.virtualfs.VirtualFileSystemFactory; import org.apache.sshd.server.SshServer; import org.apache.sshd.server.keyprovider.SimpleGeneratorHostKeyProvider; import org.apache.sshd.server.subsystem.sftp.SftpSubsystemFactory; import org.bukkit.plugin.java.JavaPlugin; import com.ryanmichela.sshd.ConsoleShellFactory; import com.ryanmichela.sshd.MkpasswdCommand; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.nio.file.FileSystems; import java.nio.file.Files; import java.util.Collections; import java.util.logging.Level; /** * Copyright 2013 Ryan Michela */ public class SshdPlugin extends JavaPlugin { private SshServer sshd; public static SshdPlugin instance; @Override public void onLoad() { saveDefaultConfig(); File authorizedKeys = new File(getDataFolder(), "authorized_keys"); if (!authorizedKeys.exists()) authorizedKeys.mkdirs(); try { File motd = new File(getDataFolder(), "motd.txt"); if (!motd.exists()) { InputStream link = (getClass().getResourceAsStream("/motd.txt")); Files.copy(link, motd.getAbsoluteFile().toPath()); } } catch (IOException e) { e.printStackTrace(); } // Don't go any lower than INFO or SSHD will cause a stack overflow exception. // SSHD will log that it wrote bites to the output stream, which writes // bytes to the output stream - ad nauseaum. getLogger().setLevel(Level.INFO); } @Override public void onEnable() { instance = this; sshd = SshServer.setUpDefaultServer(); sshd.setPort(getConfig().getInt("Port", 1025)); String host = getConfig().getString("ListenAddress", "all"); sshd.setHost(host.equals("all") ? null : host); File hostKey = new File(getDataFolder(), "hostkey"); File authorizedKeys = new File(getDataFolder(), "authorized_keys"); sshd.setKeyPairProvider(new SimpleGeneratorHostKeyProvider(hostKey.toPath())); sshd.setShellFactory(new ConsoleShellFactory()); sshd.setPasswordAuthenticator(new ConfigPasswordAuthenticator()); sshd.setPublickeyAuthenticator(new PublicKeyAuthenticator(authorizedKeys)); if (getConfig().getBoolean("EnableSFTP")) { sshd.setSubsystemFactories(Collections.singletonList(new SftpSubsystemFactory())); sshd.setFileSystemFactory( new VirtualFileSystemFactory(FileSystems.getDefault().getPath(getDataFolder().getAbsolutePath()).getParent().getParent())); } this.getCommand("mkpasswd").setExecutor(new MkpasswdCommand()); sshd.setCommandFactory(new ConsoleCommandFactory()); try { sshd.start(); } catch (IOException e) { getLogger().log(Level.SEVERE, "Failed to start SSH server! ", e); } } @Override public void onDisable() { try { sshd.stop(); } catch (Exception e) { // do nothing } } }