Examples with ChannelExec com.jcraft.jsch.ChannelExec used on opensource projects

Example 46 with ChannelExec

use of com.jcraft.jsch.ChannelExec in project OsmAnd-tools by osmandapp.

the class IndexUploader method uploadToSSH.

public void uploadToSSH(File f, String description, String size, String date, UploadSSHCredentials cred) throws IOException, JSchException {
    log.info("Uploading file " + f.getName() + " " + size + " MB " + date + " of " + description);
    // Upload to ftp
    JSch jSch = new JSch();
    boolean knownHosts = false;
    if (cred.knownHosts != null) {
        jSch.setKnownHosts(cred.knownHosts);
        knownHosts = true;
    }
    if (cred.privateKey != null) {
        jSch.addIdentity(cred.privateKey);
    }
    String serverName = cred.url;
    if (serverName.startsWith("ssh://")) {
        serverName = serverName.substring("ssh://".length());
    }
    Session session = jSch.getSession(cred.user, serverName);
    if (cred.password != null) {
        session.setPassword(cred.password);
    }
    if (!knownHosts) {
        java.util.Properties config = new java.util.Properties();
        config.put("StrictHostKeyChecking", "no");
        session.setConfig(config);
    }
    String rfile = cred.path + "/" + f.getName();
    String lfile = f.getAbsolutePath();
    session.connect();
    // exec 'scp -t rfile' remotely
    String command = "scp -p -t \"" + rfile + "\"";
    Channel channel = session.openChannel("exec");
    ((ChannelExec) channel).setCommand(command);
    // get I/O streams for remote scp
    OutputStream out = channel.getOutputStream();
    InputStream in = channel.getInputStream();
    channel.connect();
    if (checkAck(in) != 0) {
        channel.disconnect();
        session.disconnect();
        return;
    }
    // send "C0644 filesize filename", where filename should not include '/'
    long filesize = (new File(lfile)).length();
    command = "C0644 " + filesize + " ";
    if (lfile.lastIndexOf('/') > 0) {
        command += lfile.substring(lfile.lastIndexOf('/') + 1);
    } else {
        command += lfile;
    }
    command += "\n";
    out.write(command.getBytes());
    out.flush();
    if (checkAck(in) != 0) {
        channel.disconnect();
        session.disconnect();
        return;
    }
    // send a content of lfile
    FileInputStream fis = new FileInputStream(lfile);
    byte[] buf = new byte[1024];
    try {
        int len;
        while ((len = fis.read(buf, 0, buf.length)) > 0) {
            // out.flush();
            out.write(buf, 0, len);
        }
    } finally {
        fis.close();
    }
    fis = null;
    // send '\0'
    buf[0] = 0;
    out.write(buf, 0, 1);
    out.flush();
    if (checkAck(in) != 0) {
        channel.disconnect();
        session.disconnect();
        return;
    }
    out.close();
    channel.disconnect();
    session.disconnect();
    log.info("Finish uploading file index");
}

Example 47 with ChannelExec

use of com.jcraft.jsch.ChannelExec in project CommandHelper by EngineHub.

the class SSHWrapper method SCPFrom.

private static void SCPFrom(String remote, File local, Session session) throws IOException, JSchException {
    // exec 'scp -f rfile' remotely
    String command = "scp -f " + remote;
    Channel channel = session.openChannel("exec");
    ((ChannelExec) channel).setCommand(command);
    // get I/O streams for remote scp
    OutputStream out = channel.getOutputStream();
    InputStream in = channel.getInputStream();
    channel.connect();
    byte[] buf = new byte[1024];
    // send '\0'
    buf[0] = 0;
    out.write(buf, 0, 1);
    out.flush();
    while (true) {
        int c = checkAckFrom(in);
        if (c != 'C') {
            break;
        }
        // read '0644 '
        in.read(buf, 0, 5);
        long filesize = 0L;
        while (true) {
            if (in.read(buf, 0, 1) < 0) {
                // error
                break;
            }
            if (buf[0] == ' ') {
                break;
            }
            filesize = filesize * 10L + (long) (buf[0] - '0');
        }
        String file = null;
        for (int i = 0; ; i++) {
            in.read(buf, i, 1);
            if (buf[i] == (byte) 0x0a) {
                file = new String(buf, 0, i);
                break;
            }
        }
        // send '\0'
        buf[0] = 0;
        out.write(buf, 0, 1);
        out.flush();
        String prefix = null;
        if (local.isDirectory()) {
            prefix = local.getPath() + File.separator;
        }
        // read a content of lfile
        FileOutputStream fos = new FileOutputStream(prefix == null ? local.getPath() : prefix + file);
        int foo;
        while (true) {
            if (buf.length < filesize) {
                foo = buf.length;
            } else {
                foo = (int) filesize;
            }
            foo = in.read(buf, 0, foo);
            if (foo < 0) {
                // error
                break;
            }
            fos.write(buf, 0, foo);
            filesize -= foo;
            if (filesize == 0L) {
                break;
            }
        }
        fos.close();
        fos = null;
        checkAckFrom(in);
        // send '\0'
        buf[0] = 0;
        out.write(buf, 0, 1);
        out.flush();
    }
    channel.disconnect();
}

Example 48 with ChannelExec

use of com.jcraft.jsch.ChannelExec in project CommandHelper by EngineHub.

the class SSHWrapper method getRemoteMD5.

private static String getRemoteMD5(String remoteFile, Session session) throws JSchException, IOException {
    ChannelExec channel = null;
    final StringBuilder sb = new StringBuilder();
    try {
        channel = (ChannelExec) session.openChannel("exec");
        channel.setCommand("openssl md5 " + remoteFile);
        channel.setInputStream(null);
        channel.setOutputStream(null);
        channel.setErrStream(System.err);
        InputStream in = channel.getInputStream();
        channel.connect();
        byte[] tmp = new byte[1024];
        while (true) {
            while (in.available() > 0) {
                int i = in.read(tmp, 0, 1024);
                if (i < 0) {
                    break;
                }
                sb.append(new String(tmp, 0, i));
            }
            if (channel.isClosed()) {
                if (in.available() > 0) {
                    continue;
                }
                if (channel.getExitStatus() != 0) {
                    // Something went wrong, fail the comparison
                    return "invalidMD5sum";
                }
                break;
            }
            try {
                Thread.sleep(1);
            } catch (Exception ee) {
            }
        }
    } finally {
        if (channel != null) {
            channel.disconnect();
        }
    }
    if ("".equals(sb.toString())) {
        // or if the file simply doesn't exist.
        return "invalidMD5sum";
    }
    String opensslReturn = sb.toString();
    // This will be something like MD5(/path/to/file)= 798ffb41da648e405ca160fb547e3a09
    // and we just need 798ffb41da648e405ca160fb547e3a09
    opensslReturn = opensslReturn.replaceAll("MD5\\(.*\\)= ", "");
    return opensslReturn.replaceAll("\n|\r", "");
}

Example 49 with ChannelExec

use of com.jcraft.jsch.ChannelExec in project fabric8 by jboss-fuse.

the class SshContainerProvider method runScriptOnHost.

protected void runScriptOnHost(Session session, String script) throws Exception {
    ChannelExec executor = null;
    ByteArrayOutputStream output = new ByteArrayOutputStream();
    ByteArrayOutputStream error = new ByteArrayOutputStream();
    try {
        executor = (ChannelExec) session.openChannel("exec");
        executor.setPty(true);
        executor.setCommand(script);
        executor.setOutputStream(output);
        executor.setErrStream(error);
        executor.connect();
        int errorStatus = -1;
        for (int i = 0; !executor.isClosed(); i++) {
            if (i > 0) {
                long delayMs = (long) (200L * Math.pow(i, 2));
                Thread.sleep(delayMs);
            }
            if ((errorStatus = executor.getExitStatus()) != -1) {
                break;
            }
        }
        LOGGER.debug("Output: {}", output.toString());
        LOGGER.debug("Error:  {}", error.toString());
        if (verbose) {
            System.out.println("Output : " + output.toString());
            System.out.println("Error : " + error.toString());
        }
        if (errorStatus != 0) {
            throw new Exception(String.format("%s@%s:%d: received exit status %d executing \n--- command ---\n%s\n--- output ---\n%s\n--- error ---\n%s\n------\n", session.getUserName(), session.getHost(), session.getPort(), executor.getExitStatus(), script, output.toString(), error.toString()));
        }
    } finally {
        if (executor != null) {
            executor.disconnect();
        }
    }
}

Example 50 with ChannelExec

use of com.jcraft.jsch.ChannelExec in project compss by bsc-wdc.

the class AbstractSSHConnector method tryToExecuteCommand.

private boolean tryToExecuteCommand(String workerIP, String user, boolean setPassword, String passwordOrKeyPair, String command) throws ConnectorException {
    Session session = null;
    ChannelExec exec = null;
    InputStream inputStream = null;
    try {
        // Create session
        session = getSession(workerIP, user, setPassword, passwordOrKeyPair);
        // Configure session
        exec = (ChannelExec) session.openChannel("exec");
        exec.setCommand(command);
        // Waits the command to be executed
        inputStream = exec.getErrStream();
        InputStream stdOut = exec.getInputStream();
        // Execute command
        exec.connect(SERVER_TIMEOUT);
        if (LOGGER.isDebugEnabled()) {
            String output = readInputStream(stdOut);
            LOGGER.debug("Command output: " + output);
        }
        int exitStatus = -1;
        while (exitStatus < 0) {
            exitStatus = exec.getExitStatus();
            if (exitStatus == 0) {
                if (LOGGER.isDebugEnabled()) {
                    LOGGER.debug("Command successfully executed: " + command);
                }
                return true;
            } else if (exitStatus > 0) {
                String output = readInputStream(inputStream);
                if (LOGGER.isDebugEnabled()) {
                    LOGGER.debug(ERROR_COMMAND_EXEC + command + " in " + workerIP + ".\nReturned std error: " + output);
                }
                throw new ConnectorException(ERROR_COMMAND_EXEC + command + " in " + workerIP + " (exit status:" + exitStatus + ")");
            }
            LOGGER.debug("Command still on execution");
            try {
                Thread.sleep(RETRY_TIME * S_TO_MS);
            } catch (InterruptedException e) {
                LOGGER.debug("Sleep interrupted");
                Thread.currentThread().interrupt();
            }
        }
    } catch (ConnectorException | IOException | JSchException e) {
        throw new ConnectorException(ERROR_EXCEPTION_EXEC_COMMAND + user + "@" + workerIP, e);
    } finally {
        if (inputStream != null) {
            try {
                inputStream.close();
            } catch (IOException e) {
                LOGGER.warn(WARN_INPUTSTREAM_CLOSE);
            }
        }
        if (exec != null && exec.isConnected()) {
            LOGGER.debug("Disconnecting exec channel");
            exec.disconnect();
        }
        if (session != null && session.isConnected()) {
            LOGGER.debug("Disconnecting session");
            session.disconnect();
        }
    }
    return false;
}