Examples with Connection org.openmuc.j62056.Connection used on opensource projects

Example 36 with Connection

use of org.openmuc.j62056.Connection in project Payara by payara.

the class SSHLauncher method setupKey.

/**
 * Setting up the key involves the following steps:
 * -If a key exists and we can connect using the key, do nothing.
 * -Generate a key pair if there isn't one
 * -Connect to remote host using password auth and do the following:
 *  1. create .ssh directory if it doesn't exist
 *  2. copy over the key as key.tmp
 *  3. Append the key to authorized_keys file
 *  4. Remove the temporary key file key.tmp
 *  5. Fix permissions for home, .ssh and authorized_keys
 * @param node        - remote host
 * @param pubKeyFile  - .pub file
 * @param generateKey - flag to indicate if key needs to be generated or not
 * @param passwd      - ssh user password
 * @throws IOException
 * @throws InterruptedException
 */
public void setupKey(String node, String pubKeyFile, boolean generateKey, String passwd) throws IOException, InterruptedException {
    boolean connected = false;
    File key = new File(keyFile);
    if (logger.isLoggable(Level.FINER))
        logger.finer("Key = " + keyFile);
    if (key.exists()) {
        if (checkConnection()) {
            throw new IOException("SSH public key authentication is already configured for " + userName + "@" + node);
        }
    } else {
        if (generateKey) {
            if (!generateKeyPair()) {
                throw new IOException("SSH key pair generation failed. Please generate key manually.");
            }
        } else {
            throw new IOException("SSH key pair not present. Please generate a key pair manually or specify an existing one and re-run the command.");
        }
    }
    // password is must for key distribution
    if (passwd == null) {
        throw new IOException("SSH password is required for distributing the public key. You can specify the SSH password in a password file and pass it through --passwordfile option.");
    }
    connection = new Connection(node, port);
    connection.connect();
    connected = connection.authenticateWithPassword(userName, passwd);
    if (!connected) {
        throw new IOException("SSH password authentication failed for user " + userName + " on host " + node);
    }
    // We open up a second connection for scp and exec. For some reason, a hang
    // is seen in MKS if we try to do everything using the same connection.
    Connection conn = new Connection(node, port);
    conn.connect();
    boolean ret = conn.authenticateWithPassword(userName, passwd);
    if (!ret) {
        throw new IOException("SSH password authentication failed for user " + userName + " on host " + node);
    }
    // initiate scp client
    SCPClient scp = new SCPClient(conn);
    SFTPClient sftp = new SFTPClient(connection);
    if (key.exists()) {
        // fixes .ssh file mode
        setupSSHDir();
        if (pubKeyFile == null) {
            pubKeyFile = keyFile + ".pub";
        }
        File pubKey = new File(pubKeyFile);
        if (!pubKey.exists()) {
            throw new IOException("Public key file " + pubKeyFile + " does not exist.");
        }
        try {
            if (!sftp.exists(SSH_DIR)) {
                if (logger.isLoggable(Level.FINE)) {
                    logger.fine(SSH_DIR + " does not exist");
                }
                sftp.mkdirs(".ssh", 0700);
            }
        } catch (Exception e) {
            if (logger.isLoggable(Level.FINER)) {
                e.printStackTrace();
            }
            throw new IOException("Error while creating .ssh directory on remote host:" + e.getMessage());
        }
        // copy over the public key to remote host
        scp.put(pubKey.getAbsolutePath(), "key.tmp", ".ssh", "0600");
        // append the public key file contents to authorized_keys file on remote host
        String mergeCommand = "cd .ssh; cat key.tmp >> " + AUTH_KEY_FILE;
        if (logger.isLoggable(Level.FINER)) {
            logger.finer("mergeCommand = " + mergeCommand);
        }
        if (conn.exec(mergeCommand, new ByteArrayOutputStream()) != 0) {
            throw new IOException("Failed to propogate the public key " + pubKeyFile + " to " + host);
        }
        logger.info("Copied keyfile " + pubKeyFile + " to " + userName + "@" + host);
        // remove the public key file on remote host
        if (conn.exec("rm .ssh/key.tmp", new ByteArrayOutputStream()) != 0) {
            logger.warning("WARNING: Failed to remove the public key file key.tmp on remote host " + host);
        }
        if (logger.isLoggable(Level.FINER)) {
            logger.finer("Removed the temporary key file on remote host");
        }
        // Lets fix all the permissions
        // On MKS, chmod doesn't work as expected. StrictMode needs to be disabled
        // for connection to go through
        logger.info("Fixing file permissions for home(755), .ssh(700) and authorized_keys file(644)");
        sftp.chmod(".", 0755);
        sftp.chmod(SSH_DIR, 0700);
        sftp.chmod(SSH_DIR + AUTH_KEY_FILE, 0644);
        // release the connections
        sftp.close();
        conn.close();
    }
}

Example 37 with Connection

use of org.openmuc.j62056.Connection in project okhttp by square.

the class HttpLoggingInterceptor method intercept.

@Override
public Response intercept(Chain chain) throws IOException {
    Level level = this.level;
    Request request = chain.request();
    if (level == Level.NONE) {
        return chain.proceed(request);
    }
    boolean logBody = level == Level.BODY;
    boolean logHeaders = logBody || level == Level.HEADERS;
    RequestBody requestBody = request.body();
    boolean hasRequestBody = requestBody != null;
    Connection connection = chain.connection();
    Protocol protocol = connection != null ? connection.protocol() : Protocol.HTTP_1_1;
    String requestStartMessage = "--> " + request.method() + ' ' + request.url() + ' ' + protocol;
    if (!logHeaders && hasRequestBody) {
        requestStartMessage += " (" + requestBody.contentLength() + "-byte body)";
    }
    logger.log(requestStartMessage);
    if (logHeaders) {
        if (hasRequestBody) {
            // them to be included (when available) so there values are known.
            if (requestBody.contentType() != null) {
                logger.log("Content-Type: " + requestBody.contentType());
            }
            if (requestBody.contentLength() != -1) {
                logger.log("Content-Length: " + requestBody.contentLength());
            }
        }
        Headers headers = request.headers();
        for (int i = 0, count = headers.size(); i < count; i++) {
            String name = headers.name(i);
            // Skip headers from the request body as they are explicitly logged above.
            if (!"Content-Type".equalsIgnoreCase(name) && !"Content-Length".equalsIgnoreCase(name)) {
                logger.log(name + ": " + headers.value(i));
            }
        }
        if (!logBody || !hasRequestBody) {
            logger.log("--> END " + request.method());
        } else if (bodyEncoded(request.headers())) {
            logger.log("--> END " + request.method() + " (encoded body omitted)");
        } else {
            Buffer buffer = new Buffer();
            requestBody.writeTo(buffer);
            Charset charset = UTF8;
            MediaType contentType = requestBody.contentType();
            if (contentType != null) {
                charset = contentType.charset(UTF8);
            }
            logger.log("");
            if (isPlaintext(buffer)) {
                logger.log(buffer.readString(charset));
                logger.log("--> END " + request.method() + " (" + requestBody.contentLength() + "-byte body)");
            } else {
                logger.log("--> END " + request.method() + " (binary " + requestBody.contentLength() + "-byte body omitted)");
            }
        }
    }
    long startNs = System.nanoTime();
    Response response;
    try {
        response = chain.proceed(request);
    } catch (Exception e) {
        logger.log("<-- HTTP FAILED: " + e);
        throw e;
    }
    long tookMs = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startNs);
    ResponseBody responseBody = response.body();
    long contentLength = responseBody.contentLength();
    String bodySize = contentLength != -1 ? contentLength + "-byte" : "unknown-length";
    logger.log("<-- " + response.code() + ' ' + response.message() + ' ' + response.request().url() + " (" + tookMs + "ms" + (!logHeaders ? ", " + bodySize + " body" : "") + ')');
    if (logHeaders) {
        Headers headers = response.headers();
        for (int i = 0, count = headers.size(); i < count; i++) {
            logger.log(headers.name(i) + ": " + headers.value(i));
        }
        if (!logBody || !HttpHeaders.hasBody(response)) {
            logger.log("<-- END HTTP");
        } else if (bodyEncoded(response.headers())) {
            logger.log("<-- END HTTP (encoded body omitted)");
        } else {
            BufferedSource source = responseBody.source();
            // Buffer the entire body.
            source.request(Long.MAX_VALUE);
            Buffer buffer = source.buffer();
            Charset charset = UTF8;
            MediaType contentType = responseBody.contentType();
            if (contentType != null) {
                charset = contentType.charset(UTF8);
            }
            if (!isPlaintext(buffer)) {
                logger.log("");
                logger.log("<-- END HTTP (binary " + buffer.size() + "-byte body omitted)");
                return response;
            }
            if (contentLength != 0) {
                logger.log("");
                logger.log(buffer.clone().readString(charset));
            }
            logger.log("<-- END HTTP (" + buffer.size() + "-byte body)");
        }
    }
    return response;
}

Example 38 with Connection

use of org.openmuc.j62056.Connection in project openhab1-addons by openhab.

the class Meter method read.

/**
     * Reads data from meter
     * 
     * @return a map of DataSet objects with the obis as key.
     */
public Map<String, DataSet> read() {
    // the frequently executed code (polling) goes here ...
    Map<String, DataSet> dataSetMap = new HashMap<String, DataSet>();
    Connection connection = new Connection(config.getSerialPort(), config.getInitMessage(), config.getEchoHandling(), config.getBaudRateChangeDelay());
    try {
        try {
            connection.open();
        } catch (IOException e) {
            logger.error("Failed to open serial port {}: {}", config.getSerialPort(), e.getMessage());
            return dataSetMap;
        }
        List<DataSet> dataSets = null;
        try {
            dataSets = connection.read();
            for (DataSet dataSet : dataSets) {
                logger.debug("DataSet: {};{};{}", dataSet.getId(), dataSet.getValue(), dataSet.getUnit());
                dataSetMap.put(dataSet.getId(), dataSet);
            }
        } catch (IOException e) {
            logger.error("IOException while trying to read: {}", e.getMessage());
        } catch (TimeoutException e) {
            logger.error("Read attempt timed out");
        }
    } finally {
        connection.close();
    }
    return dataSetMap;
}

Example 39 with Connection

use of org.openmuc.j62056.Connection in project CloudStack-archive by CloudStack-extras.

the class TestClientWithAPI method sshWinTest.

private static String sshWinTest(String host) {
    if (host == null) {
        s_logger.info("Did not receive a host back from test, ignoring win ssh test");
        return null;
    }
    // We will retry 5 times before quitting
    int retry = 1;
    while (true) {
        try {
            if (retry > 0) {
                s_logger.info("Retry attempt : " + retry + " ...sleeping 300 seconds before next attempt. Account is " + _account.get());
                Thread.sleep(300000);
            }
            s_logger.info("Attempting to SSH into windows host " + host + " with retry attempt: " + retry + " for account " + _account.get());
            Connection conn = new Connection(host);
            conn.connect(null, 60000, 60000);
            s_logger.info("User " + _account.get() + " ssHed successfully into windows host " + host);
            boolean success = false;
            boolean isAuthenticated = conn.authenticateWithPassword("Administrator", "password");
            if (isAuthenticated == false) {
                return "Authentication failed";
            } else {
                s_logger.info("Authentication is successfull");
            }
            try {
                SCPClient scp = new SCPClient(conn);
                scp.put("wget.exe", "wget.exe", "C:\\Users\\Administrator", "0777");
                s_logger.info("Successfully put wget.exe file");
            } catch (Exception ex) {
                s_logger.error("Unable to put wget.exe " + ex);
            }
            if (conn == null) {
                s_logger.error("Connection is null");
            }
            Session sess = conn.openSession();
            s_logger.info("User + " + _account.get() + " executing : wget http://" + downloadUrl);
            String downloadCommand = "wget http://" + downloadUrl + " && dir dump.bin";
            sess.execCommand(downloadCommand);
            InputStream stdout = sess.getStdout();
            InputStream stderr = sess.getStderr();
            byte[] buffer = new byte[8192];
            while (true) {
                if ((stdout.available() == 0) && (stderr.available() == 0)) {
                    int conditions = sess.waitForCondition(ChannelCondition.STDOUT_DATA | ChannelCondition.STDERR_DATA | ChannelCondition.EOF, 120000);
                    if ((conditions & ChannelCondition.TIMEOUT) != 0) {
                        s_logger.info("Timeout while waiting for data from peer.");
                        return null;
                    }
                    if ((conditions & ChannelCondition.EOF) != 0) {
                        if ((conditions & (ChannelCondition.STDOUT_DATA | ChannelCondition.STDERR_DATA)) == 0) {
                            break;
                        }
                    }
                }
                while (stdout.available() > 0) {
                    success = true;
                    int len = stdout.read(buffer);
                    if (// this check is somewhat paranoid
                    len > 0)
                        s_logger.info(new String(buffer, 0, len));
                }
                while (stderr.available() > 0) {
                    /* int len = */
                    stderr.read(buffer);
                }
            }
            sess.close();
            conn.close();
            if (success) {
                return null;
            } else {
                retry++;
                if (retry == MAX_RETRY_WIN) {
                    return "SSH Windows Network test fail for account " + _account.get();
                }
            }
        } catch (Exception e) {
            s_logger.error(e);
            retry++;
            if (retry == MAX_RETRY_WIN) {
                return "SSH Windows Network test fail with error " + e.getMessage();
            }
        }
    }
}

Example 40 with Connection

use of org.openmuc.j62056.Connection in project CloudStack-archive by CloudStack-extras.

the class TestClientWithAPI method sshTest.

private static String sshTest(String host, String password, String snapshot_test) {
    int i = 0;
    if (host == null) {
        s_logger.info("Did not receive a host back from test, ignoring ssh test");
        return null;
    }
    if (password == null) {
        s_logger.info("Did not receive a password back from test, ignoring ssh test");
        return null;
    }
    // We will retry 5 times before quitting
    String result = null;
    int retry = 0;
    while (true) {
        try {
            if (retry > 0) {
                s_logger.info("Retry attempt : " + retry + " ...sleeping 120 seconds before next attempt. Account is " + _account.get());
                Thread.sleep(120000);
            }
            s_logger.info("Attempting to SSH into linux host " + host + " with retry attempt: " + retry + ". Account is " + _account.get());
            Connection conn = new Connection(host);
            conn.connect(null, 60000, 60000);
            s_logger.info("User + " + _account.get() + " ssHed successfully into linux host " + host);
            boolean isAuthenticated = conn.authenticateWithPassword("root", password);
            if (isAuthenticated == false) {
                s_logger.info("Authentication failed for root with password" + password);
                return "Authentication failed";
            }
            boolean success = false;
            String linuxCommand = null;
            if (i % 10 == 0)
                linuxCommand = "rm -rf *; wget http://" + downloadUrl + " && ls -al dump.bin";
            else
                linuxCommand = "wget http://" + downloadUrl + " && ls -al dump.bin";
            Session sess = conn.openSession();
            s_logger.info("User " + _account.get() + " executing : " + linuxCommand);
            sess.execCommand(linuxCommand);
            InputStream stdout = sess.getStdout();
            InputStream stderr = sess.getStderr();
            byte[] buffer = new byte[8192];
            while (true) {
                if ((stdout.available() == 0) && (stderr.available() == 0)) {
                    int conditions = sess.waitForCondition(ChannelCondition.STDOUT_DATA | ChannelCondition.STDERR_DATA | ChannelCondition.EOF, 120000);
                    if ((conditions & ChannelCondition.TIMEOUT) != 0) {
                        s_logger.info("Timeout while waiting for data from peer.");
                        return null;
                    }
                    if ((conditions & ChannelCondition.EOF) != 0) {
                        if ((conditions & (ChannelCondition.STDOUT_DATA | ChannelCondition.STDERR_DATA)) == 0) {
                            break;
                        }
                    }
                }
                while (stdout.available() > 0) {
                    success = true;
                    int len = stdout.read(buffer);
                    if (// this check is somewhat paranoid
                    len > 0)
                        s_logger.info(new String(buffer, 0, len));
                }
                while (stderr.available() > 0) {
                    /* int len = */
                    stderr.read(buffer);
                }
            }
            sess.close();
            conn.close();
            if (!success) {
                retry++;
                if (retry == MAX_RETRY_LINUX) {
                    result = "SSH Linux Network test fail";
                }
            }
            if (snapshot_test.equals("no"))
                return result;
            else {
                Long sleep = 300000L;
                s_logger.info("Sleeping for " + sleep / 1000 / 60 + "minutes before executing next ssh test");
                Thread.sleep(sleep);
            }
        } catch (Exception e) {
            retry++;
            s_logger.error("SSH Linux Network test fail with error");
            if ((retry == MAX_RETRY_LINUX) && (snapshot_test.equals("no"))) {
                return "SSH Linux Network test fail with error " + e.getMessage();
            }
        }
        i++;
    }
}