Examples with KeyPairProvider org.apache.sshd.common.KeyPairProvider used on opensource projects

Example 1 with KeyPairProvider

use of org.apache.sshd.common.KeyPairProvider in project camel by apache.

the class SshHelper method sendExecCommand.

public static SshResult sendExecCommand(String command, SshEndpoint endpoint, SshClient client) throws Exception {
    SshResult result = null;
    SshConfiguration configuration = endpoint.getConfiguration();
    if (configuration == null) {
        throw new IllegalStateException("Configuration must be set");
    }
    ConnectFuture connectFuture = client.connect(null, configuration.getHost(), configuration.getPort());
    // Wait getTimeout milliseconds for connect operation to complete
    connectFuture.await(configuration.getTimeout());
    if (!connectFuture.isDone() || !connectFuture.isConnected()) {
        final String msg = "Failed to connect to " + configuration.getHost() + ":" + configuration.getPort() + " within timeout " + configuration.getTimeout() + "ms";
        LOG.debug(msg);
        throw new RuntimeCamelException(msg);
    }
    LOG.debug("Connected to {}:{}", configuration.getHost(), configuration.getPort());
    ClientChannel channel = null;
    ClientSession session = null;
    try {
        AuthFuture authResult;
        session = connectFuture.getSession();
        KeyPairProvider keyPairProvider;
        final String certResource = configuration.getCertResource();
        if (certResource != null) {
            LOG.debug("Attempting to authenticate using ResourceKey '{}'...", certResource);
            keyPairProvider = new ResourceHelperKeyPairProvider(new String[] { certResource }, endpoint.getCamelContext().getClassResolver());
        } else {
            keyPairProvider = configuration.getKeyPairProvider();
        }
        if (keyPairProvider != null) {
            LOG.debug("Attempting to authenticate username '{}' using Key...", configuration.getUsername());
            KeyPair pair = keyPairProvider.loadKey(configuration.getKeyType());
            authResult = session.authPublicKey(configuration.getUsername(), pair);
        } else {
            LOG.debug("Attempting to authenticate username '{}' using Password...", configuration.getUsername());
            authResult = session.authPassword(configuration.getUsername(), configuration.getPassword());
        }
        authResult.await(configuration.getTimeout());
        if (!authResult.isDone() || authResult.isFailure()) {
            LOG.debug("Failed to authenticate");
            throw new RuntimeCamelException("Failed to authenticate username " + configuration.getUsername());
        }
        channel = session.createChannel(ClientChannel.CHANNEL_EXEC, command);
        ByteArrayInputStream in = new ByteArrayInputStream(new byte[] { 0 });
        channel.setIn(in);
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        channel.setOut(out);
        ByteArrayOutputStream err = new ByteArrayOutputStream();
        channel.setErr(err);
        OpenFuture openFuture = channel.open();
        openFuture.await(configuration.getTimeout());
        if (openFuture.isOpened()) {
            channel.waitFor(ClientChannel.CLOSED, 0);
            result = new SshResult(command, channel.getExitStatus(), new ByteArrayInputStream(out.toByteArray()), new ByteArrayInputStream(err.toByteArray()));
        }
        return result;
    } finally {
        if (channel != null) {
            channel.close(true);
        }
        // need to make sure the session is closed 
        if (session != null) {
            session.close(false);
        }
    }
}