Examples with PtyCapableChannelSession org.apache.sshd.client.channel.PtyCapableChannelSession used on opensource projects

Example 1 with PtyCapableChannelSession

use of org.apache.sshd.client.channel.PtyCapableChannelSession in project tesb-studio-se by Talend.

the class RuntimeClient method connect.

public void connect(String[] args) throws Exception {
    ClientConfig config = new ClientConfig(args);
    SimpleLogger.setLevel(config.getLevel());
    if (config.getFile() != null) {
        StringBuilder sb = new StringBuilder();
        sb.setLength(0);
        try (Reader reader = new BufferedReader(new InputStreamReader(new FileInputStream(config.getFile())))) {
            for (int c = reader.read(); c >= 0; c = reader.read()) {
                sb.append((char) c);
            }
        }
        config.setCommand(sb.toString());
    } else if (config.isBatch()) {
        StringBuilder sb = new StringBuilder();
        sb.setLength(0);
        Reader reader = new BufferedReader(new InputStreamReader(System.in));
        for (int c = reader.read(); c >= 0; c = reader.read()) {
            sb.append((char) c);
        }
        config.setCommand(sb.toString());
    }
    SshClient client = ClientBuilder.builder().build();
    // setupAgent(config.getUser(), config.getKeyFile(), client);
    // client.getProperties().put(FactoryManager.IDLE_TIMEOUT, String.valueOf(config.getIdleTimeout()));
    final Console console = System.console();
    if (console != null) {
        client.setUserInteraction(new UserInteraction() {

            @Override
            public void welcome(ClientSession s, String banner, String lang) {
                System.err.println(banner);
            }

            @Override
            public String[] interactive(ClientSession s, String name, String instruction, String lang, String[] prompt, boolean[] echo) {
                String[] answers = new String[prompt.length];
                try {
                    for (int i = 0; i < prompt.length; i++) {
                        if (echo[i]) {
                            answers[i] = console.readLine(prompt[i] + " ");
                        } else {
                            answers[i] = new String(console.readPassword(prompt[i] + " "));
                        }
                        if (answers[i] == null) {
                            return null;
                        }
                    }
                    return answers;
                } catch (IOError e) {
                    return null;
                }
            }

            @Override
            public boolean isInteractionAllowed(ClientSession session) {
                return true;
            }

            @Override
            public void serverVersionInfo(ClientSession session, List<String> lines) {
            }

            @Override
            public String getUpdatedPassword(ClientSession session, String prompt, String lang) {
                return null;
            }
        });
    }
    client.start();
    ClientSession session = connectWithRetries(client, config);
    if (config.getPassword() != null) {
        session.addPasswordIdentity(config.getPassword());
    }
    session.auth().verify();
    int exitStatus = 0;
    Terminal terminal = TerminalBuilder.terminal();
    Attributes attributes = terminal.enterRawMode();
    IOConsoleOutputStream outputStream = RuntimeConsoleUtil.getOutputStream();
    try {
        ClientChannel channel;
        if (config.getCommand().length() > 0) {
            channel = session.createChannel("exec", config.getCommand() + "\n");
            channel.setIn(new ByteArrayInputStream(new byte[0]));
        } else {
            ChannelShell shell = session.createShellChannel();
            channel = shell;
            channel.setIn(new NoCloseInputStream(inputStream));
            Map<PtyMode, Integer> modes = new HashMap<>();
            // Control chars
            modes.put(PtyMode.VINTR, attributes.getControlChar(ControlChar.VINTR));
            modes.put(PtyMode.VQUIT, attributes.getControlChar(ControlChar.VQUIT));
            modes.put(PtyMode.VERASE, attributes.getControlChar(ControlChar.VERASE));
            modes.put(PtyMode.VKILL, attributes.getControlChar(ControlChar.VKILL));
            modes.put(PtyMode.VEOF, attributes.getControlChar(ControlChar.VEOF));
            modes.put(PtyMode.VEOL, attributes.getControlChar(ControlChar.VEOL));
            modes.put(PtyMode.VEOL2, attributes.getControlChar(ControlChar.VEOL2));
            modes.put(PtyMode.VSTART, attributes.getControlChar(ControlChar.VSTART));
            modes.put(PtyMode.VSTOP, attributes.getControlChar(ControlChar.VSTOP));
            modes.put(PtyMode.VSUSP, attributes.getControlChar(ControlChar.VSUSP));
            modes.put(PtyMode.VDSUSP, attributes.getControlChar(ControlChar.VDSUSP));
            modes.put(PtyMode.VREPRINT, attributes.getControlChar(ControlChar.VREPRINT));
            modes.put(PtyMode.VWERASE, attributes.getControlChar(ControlChar.VWERASE));
            modes.put(PtyMode.VLNEXT, attributes.getControlChar(ControlChar.VLNEXT));
            modes.put(PtyMode.VSTATUS, attributes.getControlChar(ControlChar.VSTATUS));
            modes.put(PtyMode.VDISCARD, attributes.getControlChar(ControlChar.VDISCARD));
            // Input flags
            modes.put(PtyMode.IGNPAR, getFlag(attributes, InputFlag.IGNPAR));
            modes.put(PtyMode.PARMRK, getFlag(attributes, InputFlag.PARMRK));
            modes.put(PtyMode.INPCK, getFlag(attributes, InputFlag.INPCK));
            modes.put(PtyMode.ISTRIP, getFlag(attributes, InputFlag.ISTRIP));
            modes.put(PtyMode.INLCR, getFlag(attributes, InputFlag.INLCR));
            modes.put(PtyMode.IGNCR, getFlag(attributes, InputFlag.IGNCR));
            modes.put(PtyMode.ICRNL, getFlag(attributes, InputFlag.ICRNL));
            modes.put(PtyMode.IXON, getFlag(attributes, InputFlag.IXON));
            modes.put(PtyMode.IXANY, getFlag(attributes, InputFlag.IXANY));
            modes.put(PtyMode.IXOFF, getFlag(attributes, InputFlag.IXOFF));
            // Local flags
            modes.put(PtyMode.ISIG, getFlag(attributes, LocalFlag.ISIG));
            modes.put(PtyMode.ICANON, getFlag(attributes, LocalFlag.ICANON));
            modes.put(PtyMode.ECHO, getFlag(attributes, LocalFlag.ECHO));
            modes.put(PtyMode.ECHOE, getFlag(attributes, LocalFlag.ECHOE));
            modes.put(PtyMode.ECHOK, getFlag(attributes, LocalFlag.ECHOK));
            modes.put(PtyMode.ECHONL, getFlag(attributes, LocalFlag.ECHONL));
            modes.put(PtyMode.NOFLSH, getFlag(attributes, LocalFlag.NOFLSH));
            modes.put(PtyMode.TOSTOP, getFlag(attributes, LocalFlag.TOSTOP));
            modes.put(PtyMode.IEXTEN, getFlag(attributes, LocalFlag.IEXTEN));
            // Output flags
            modes.put(PtyMode.OPOST, getFlag(attributes, OutputFlag.OPOST));
            modes.put(PtyMode.ONLCR, getFlag(attributes, OutputFlag.ONLCR));
            modes.put(PtyMode.OCRNL, getFlag(attributes, OutputFlag.OCRNL));
            modes.put(PtyMode.ONOCR, getFlag(attributes, OutputFlag.ONOCR));
            modes.put(PtyMode.ONLRET, getFlag(attributes, OutputFlag.ONLRET));
            shell.setPtyModes(modes);
            shell.setPtyColumns(terminal.getWidth());
            shell.setPtyLines(terminal.getHeight());
            shell.setAgentForwarding(true);
            String ctype = System.getenv("LC_CTYPE");
            if (ctype == null) {
                ctype = Locale.getDefault().toString() + "." + System.getProperty("input.encoding", Charset.defaultCharset().name());
            }
            shell.setEnv("LC_CTYPE", ctype);
        }
        channel.setOut(outputStream);
        channel.setErr(outputStream);
        channel.open().verify();
        if (channel instanceof PtyCapableChannelSession) {
            registerSignalHandler(terminal, (PtyCapableChannelSession) channel);
        }
        connected = true;
        channel.waitFor(EnumSet.of(ClientChannelEvent.CLOSED), 0);
        if (channel.getExitStatus() != null) {
            exitStatus = channel.getExitStatus();
        }
        channel.close();
    } finally {
        terminal.setAttributes(attributes);
        client.stop();
        client.close();
        connected = false;
        if (!outputStream.isClosed()) {
            outputStream.close();
        }
    }
}