Package net.schmizz.sshj.connection.channel.direct

Examples of net.schmizz.sshj.connection.channel.direct.Session$Subsystem

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                return newSession();
            }
        }

        private Session newSession() throws ConnectionException, TransportException {
            final Session s = getSsh().startSession();
            s.allocateDefaultPTY();
//            try {
//                s.getOutputStream().write("ls\n".getBytes(IOUtils.UTF8));
//                s.getOutputStream().flush();
//            } catch (IOException e) {
//                throw new RuntimeException(e);
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        ssh.loadKnownHosts();

        ssh.connect("localhost");
        try {
            ssh.authPublickey(System.getProperty("user.name"));
            final Session session = ssh.startSession();
            try {
                final Command cmd = session.exec("ping -c 1 google.com");
                System.out.println(IOUtils.readFully(cmd.getInputStream()).toString());
                cmd.join(5, TimeUnit.SECONDS);
                System.out.println("\n** exit status: " + cmd.getExitStatus());
            } finally {
                session.close();
            }
        } finally {
            ssh.disconnect();
        }
    }
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        ssh.connect("localhost");
        try {

            ssh.authPublickey(System.getProperty("user.name"));

            Session sess = ssh.startSession();

            /*
            * It is recommendable to send a fake cookie, and in your ConnectListener when a connection comes in replace
            * it with the real one. But here simply one from `xauth list` is being used.
            */
            sess.reqX11Forwarding("MIT-MAGIC-COOKIE-1", "b0956167c9ad8f34c8a2788878307dc9", 0);

            final Command cmd = sess.exec("/usr/X11/bin/xcalc");

            new StreamCopier(cmd.getInputStream(), System.out).spawn("stdout");
            new StreamCopier(cmd.getErrorStream(), System.err).spawn("stderr");

            // Wait for session & X11 channel to get closed
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        ssh.connect("localhost");
        try {

            ssh.authPublickey(System.getProperty("user.name"));

            final Session session = ssh.startSession();
            try {

                session.allocateDefaultPTY();

                final Shell shell = session.startShell();

                new StreamCopier(shell.getInputStream(), System.out)
                        .bufSize(shell.getLocalMaxPacketSize())
                        .spawn("stdout");

                new StreamCopier(shell.getErrorStream(), System.err)
                        .bufSize(shell.getLocalMaxPacketSize())
                        .spawn("stderr");

                // Now make System.in act as stdin. To exit, hit Ctrl+D (since that results in an EOF on System.in)
                // This is kinda messy because java only allows console input after you hit return
                // But this is just an example... a GUI app could implement a proper PTY
                new StreamCopier(System.in, shell.getOutputStream())
                        .bufSize(shell.getRemoteMaxPacketSize())
                        .copy();

            } finally {
                session.close();
            }

        } finally {
            ssh.disconnect();
        }
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     *             if the server communication failed
     * @throws TavernaExecutorException
     *             if the directory cannot be created
     */
    private String createWorkingDir() throws IOException, TavernaExecutorException {
        final Session session = ssh.startSession();
        try {
            final Command cmd = session.exec("mktemp -d -t plato.XXXXXXXXXXXXXXXXXXXX");
            String tempDir = IOUtils.readFully(cmd.getInputStream()).toString();
            cmd.join(commandTimeout, TimeUnit.SECONDS);
            if (cmd.getExitStatus().equals(0)) {
                tempDir = tempDir.trim();
                LOG.debug("Created working directory " + tempDir);
                return tempDir;
            } else {
                String stderr = IOUtils.readFully(cmd.getErrorStream()).toString();
                LOG.error("Error creating working directory " + stderr);
                throw new TavernaExecutorException("Error creating working directory " + stderr);
            }
        } finally {
            session.close();
        }
    }
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     * @throws TavernaExecutorException
     *             if the directory cannot be created
     */
    private void createDir(String dir) throws IOException, TavernaExecutorException {
        if (!createdDirsCache.contains(dir)) {
            final Session session = ssh.startSession();
            try {
                final Command cmd = session.exec("mkdir -p \"" + dir + "\"");
                cmd.join(commandTimeout, TimeUnit.SECONDS);

                if (cmd.getExitStatus().equals(0)) {
                    LOG.debug("Created directory " + dir);
                    createdDirsCache.add(dir);
                } else {
                    String stderr = IOUtils.readFully(cmd.getErrorStream()).toString();
                    LOG.error("Error creating directory " + dir + ": " + stderr);
                    throw new TavernaExecutorException("Error creating directory " + dir + ": " + stderr);
                }

            } finally {
                session.close();
            }
        }
    }
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     *             if the server communication failed
     * @throws TavernaExecutorException
     *             if the workflow cannot be executed
     */
    private void executeWorkflow() throws IOException, TavernaExecutorException {
        final Session session = ssh.startSession();
        try {
            String command = tavernaCommand.replace("%%inputdoc%%", inputDocPath)
                .replace("%%outputdoc%%", outputDocPath).replace("%%workflow%%", workflowPath)
                .replace("%%working_dir%%", workingDir);
            final Command cmd = session.exec(command);
            cmd.join(commandTimeout, TimeUnit.SECONDS);

            if (!cmd.getExitStatus().equals(0)) {
                String stderr = IOUtils.readFully(cmd.getErrorStream()).toString();
                LOG.error("Error executing workflow: " + stderr);
                throw new TavernaExecutorException("Error executing workflow: " + stderr);
            }

            LOG.debug("Executed workflow with command " + command);
        } finally {
            session.close();
        }
    }
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     *             if a communication error occurred
     * @throws TavernaExecutorException
     *             if the cleanup was not successful
     */
    private void cleanupServer() throws IOException, TavernaExecutorException {
        final Session session = ssh.startSession();
        try {
            final Command cmd = session.exec("rm -rf " + workingDir);
            cmd.join(commandTimeout, TimeUnit.SECONDS);

            if (!cmd.getExitStatus().equals(0)) {
                String stderr = IOUtils.readFully(cmd.getErrorStream()).toString();
                LOG.error("Error deleting working directory " + stderr);
                throw new TavernaExecutorException("Error deleting working directory " + stderr);
            }

            LOG.debug("Deleted working directory " + workingDir);
        } finally {
            session.close();
        }
    }
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            }

            final String destination = "/tmp/" + remoteFileName + ".pp";
            Ssh.createFile(client, createPuppetScript(pool, machine), 0600, destination);

            Session session = client.startSession();
            try {
                session.allocateDefaultPTY();

                // TODO: extract this loop outside of this activity (probably using a business process error)
                final String runScriptWithWaitCommand = "while ! which puppet &> /dev/null ; " +
                    "do echo 'Puppet command not found. Waiting for userdata.sh script to finish (10s)' " +
                    "&& sleep 10; " +
                    "done " +
                    "&& sudo puppet apply --detailed-exitcodes --debug --verbose " + destination;
                Session.Command command = session.exec(runScriptWithWaitCommand);

                Ssh.logCommandOutput(LOG, machine.getExternalId(), command);
                command.join();

                final Integer exitStatus = command.getExitStatus();
                if (exitStatus != PUPPET_FINISHED_WITH_NO_FAILURES && exitStatus != 0) {
                    throw new RuntimeException(String.format("Failed to execute puppet. " +
                        "Exit code: %d. Exit message: %s", exitStatus, command.getExitErrorMessage()));

                } else {
                    LOG.info("<< Command completed successfully with exit code 0");
                }


            } finally {
                session.close();
            }
        } finally {
            client.close();
        }
    }
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    @Test
    public void testConnectToLocalhostAndCollectOutput() throws IOException {
        SSHClient client = Ssh.newClient(localhost, adminAccess, 1000);
        try {
            Session session = client.startSession();
            try {
                final Session.Command command = session.exec("echo 'stdout' && echo 'stderr' 1>&2");

                String stdout = CharStreams.toString(new InputStreamReader(command.getInputStream()));
                String stderr = CharStreams.toString(new InputStreamReader(command.getErrorStream()));

                command.join();
                assertThat(command.getExitStatus()).isEqualTo(0);
                assertThat(command.getExitErrorMessage()).isNull();

                assertThat(stdout).contains("stdout");
                assertThat(stderr).contains("stderr");

            } finally {
                session.close();
            }
        } finally {
            client.close();
        }
    }
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