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

Example 86 with ChannelExec

use of com.jcraft.jsch.ChannelExec in project ant-ivy by apache.

the class Scp method getExecChannel.

/**
 * @return ChannelExec
 * @throws JSchException if something goes wrong
 */
private ChannelExec getExecChannel() throws JSchException {
    ChannelExec channel;
    channel = (ChannelExec) session.openChannel("exec");
    return channel;
}

Example 87 with ChannelExec

use of com.jcraft.jsch.ChannelExec in project ant-ivy by apache.

the class SshRepository method checkExistence.

/**
 * check for existence of file or dir on target system
 *
 * @param filePath
 *            to the object to check
 * @param session
 *            to use
 * @return true: object exists, false otherwise
 */
private boolean checkExistence(String filePath, Session session) throws IOException {
    Message.debug("SShRepository: checkExistence called: " + filePath);
    ChannelExec channel = null;
    channel = getExecChannel(session);
    String fullCmd = replaceArgument(existCommand, filePath);
    channel.setCommand(fullCmd);
    StringBuilder stdOut = new StringBuilder();
    StringBuilder stdErr = new StringBuilder();
    readSessionOutput(channel, stdOut, stdErr);
    return channel.getExitStatus() == 0;
}

Example 88 with ChannelExec

use of com.jcraft.jsch.ChannelExec in project ant-ivy by apache.

the class SshRepository method list.

/*
     * (non-Javadoc)
     *
     * @see org.apache.ivy.repository.Repository#list(java.lang.String)
     */
public List<String> list(String parent) throws IOException {
    Message.debug("SShRepository:list called: " + parent);
    List<String> result = new ArrayList<>();
    Session session = null;
    ChannelExec channel = null;
    session = getSession(parent);
    channel = getExecChannel(session);
    URI parentUri = null;
    try {
        parentUri = new URI(parent);
    } catch (URISyntaxException e) {
        throw new IOException("The uri '" + parent + "' is not valid!", e);
    }
    String fullCmd = replaceArgument(listCommand, parentUri.getPath());
    channel.setCommand(fullCmd);
    StringBuilder stdOut = new StringBuilder();
    StringBuilder stdErr = new StringBuilder();
    readSessionOutput(channel, stdOut, stdErr);
    if (channel.getExitStatus() != 0) {
        Message.error("Ssh ListCommand exited with status != 0");
        Message.error(stdErr.toString());
        return null;
    } else {
        BufferedReader br = new BufferedReader(new StringReader(stdOut.toString()));
        String line = null;
        while ((line = br.readLine()) != null) {
            result.add(line);
        }
    }
    return result;
}

Example 89 with ChannelExec

use of com.jcraft.jsch.ChannelExec in project ant-ivy by apache.

the class SshRepository method makePath.

/**
 * Tries to create a directory path on the target system
 *
 * @param path
 *            to create
 * @param session
 *            to use
 */
private void makePath(String path, Session session) throws IOException {
    ChannelExec channel = null;
    String trimmed = path;
    try {
        while (trimmed.length() > 0 && trimmed.charAt(trimmed.length() - 1) == fileSeparator) {
            trimmed = trimmed.substring(0, trimmed.length() - 1);
        }
        if (trimmed.length() == 0 || checkExistence(trimmed, session)) {
            return;
        }
        int nextSlash = trimmed.lastIndexOf(fileSeparator);
        if (nextSlash > 0) {
            String parent = trimmed.substring(0, nextSlash);
            makePath(parent, session);
        }
        channel = getExecChannel(session);
        String mkdir = replaceArgument(createDirCommand, trimmed);
        Message.debug("SShRepository: trying to create path: " + mkdir);
        channel.setCommand(mkdir);
        StringBuilder stdOut = new StringBuilder();
        StringBuilder stdErr = new StringBuilder();
        readSessionOutput(channel, stdOut, stdErr);
    } finally {
        if (channel != null) {
            channel.disconnect();
        }
    }
}

Example 90 with ChannelExec

use of com.jcraft.jsch.ChannelExec in project nimbus by nimbus-org.

the class SCPClientImpl method mget.

public File[] mget(String remote, String localDir) throws SCPException {
    if (jsch == null) {
        throw new SCPException(scpClientFactoryServiceName, "Connection is not established!");
    }
    if (session == null) {
        throw new SCPException(scpClientFactoryServiceName, "It is not authenticated!");
    }
    if (remote == null || remote.length() == 0) {
        throw new SCPException(scpClientFactoryServiceName, "Path is null.");
    }
    if (localDir == null) {
        localDir = ".";
    }
    File localDirFile = new File(localDir);
    if (homeDir != null && !localDirFile.isAbsolute()) {
        localDirFile = new File(homeDir, localDir);
    }
    List<File> localFiles = new ArrayList<File>();
    Channel channel = null;
    final String cmd = "scp -f " + remote;
    File localFile = null;
    try {
        channel = session.openChannel("exec");
        ((ChannelExec) channel).setCommand(cmd);
        OutputStream os = channel.getOutputStream();
        InputStream is = channel.getInputStream();
        channel.connect();
        byte[] buf = new byte[1024];
        os.write(0);
        os.flush();
        while (true) {
            int c = checkAck(is);
            if (c == -1) {
                if (localFiles.size() == 0) {
                    throw new IOException("Remote SCP terminated unexpectedly.");
                }
                break;
            }
            if (c != 'C') {
                break;
            }
            is.read(buf, 0, 5);
            long fileSize = 0L;
            while (true) {
                if (is.read(buf, 0, 1) < 0) {
                    throw new SCPException(scpClientFactoryServiceName, "Unexpected EOF.");
                }
                if (buf[0] == ' ') {
                    break;
                }
                fileSize = fileSize * 10L + (long) (buf[0] - '0');
            }
            String fileName = null;
            for (int i = 0; ; i++) {
                is.read(buf, i, 1);
                if (buf[i] == (byte) 0x0a) {
                    fileName = new String(buf, 0, i);
                    break;
                }
            }
            buf[0] = 0;
            os.write(buf, 0, 1);
            os.flush();
            localFile = new File(localDirFile, fileName);
            localFiles.add(localFile);
            FileOutputStream fos = new FileOutputStream(localFile);
            try {
                int readLen = 0;
                while (true) {
                    if (buf.length < fileSize) {
                        readLen = buf.length;
                    } else {
                        readLen = (int) fileSize;
                    }
                    readLen = is.read(buf, 0, readLen);
                    if (readLen < 0) {
                        throw new SCPException(scpClientFactoryServiceName, "Unexpected EOF.");
                    }
                    fos.write(buf, 0, readLen);
                    fileSize -= readLen;
                    if (fileSize == 0L) {
                        break;
                    }
                }
            } finally {
                fos.close();
                fos = null;
            }
            checkAck(is);
            localFile = null;
            buf[0] = 0;
            os.write(buf, 0, 1);
            os.flush();
        }
    } catch (IOException e) {
        throw new SCPException(scpClientFactoryServiceName, "It failed to mget! from=" + remote + ", to=" + localFile, e);
    } catch (JSchException e) {
        throw new SCPException(scpClientFactoryServiceName, "It failed to mget! from=" + remote + ", to=" + localFile, e);
    } finally {
        if (channel != null) {
            channel.disconnect();
        }
    }
    return localFiles.toArray(new File[localFiles.size()]);
}