@Override
public ChannelSftp create() throws JSchException {
checkConnected();
String channel = "sftp";
sftp = (ChannelSftp) sessionConnection.getSession().openChannel(channel);
sftp.connect();
return sftp;
}
public JschSshClient(
ProxyConfig proxyConfig,
BackoffLimitedRetryHandler backoffLimitedRetryHandler,
HostAndPort socket,
LoginCredentials loginCredentials,
int timeout) {
this.user = checkNotNull(loginCredentials, "loginCredentials").getUser();
this.host = checkNotNull(socket, "socket").getHostText();
checkArgument(socket.getPort() > 0, "ssh port must be greater then zero" + socket.getPort());
checkArgument(
loginCredentials.getPassword() != null || loginCredentials.getPrivateKey() != null,
"you must specify a password or a key");
this.backoffLimitedRetryHandler =
checkNotNull(backoffLimitedRetryHandler, "backoffLimitedRetryHandler");
if (loginCredentials.getPrivateKey() == null) {
this.toString =
String.format(
"%s:pw[%s]@%s:%d",
loginCredentials.getUser(),
base16()
.lowerCase()
.encode(md5().hashString(loginCredentials.getPassword(), UTF_8).asBytes()),
host,
socket.getPort());
} else {
String fingerPrint = fingerprintPrivateKey(loginCredentials.getPrivateKey());
String sha1 = sha1PrivateKey(loginCredentials.getPrivateKey());
this.toString =
String.format(
"%s:rsa[fingerprint(%s),sha1(%s)]@%s:%d",
loginCredentials.getUser(), fingerPrint, sha1, host, socket.getPort());
}
sessionConnection =
SessionConnection.builder()
.hostAndPort(HostAndPort.fromParts(host, socket.getPort()))
.loginCredentials(loginCredentials)
.proxy(checkNotNull(proxyConfig, "proxyConfig"))
.connectTimeout(timeout)
.sessionTimeout(timeout)
.build();
}
@Override
public ExecChannel create() throws Exception {
this.sessionConnection =
acquire(
SessionConnection.builder()
.from(JschSshClient.this.sessionConnection)
.sessionTimeout(0)
.build());
String channel = "exec";
executor = (ChannelExec) sessionConnection.openChannel(channel);
executor.setCommand(command);
executor.setErrStream(new ByteArrayOutputStream());
InputStream inputStream = executor.getInputStream();
InputStream errStream = executor.getErrStream();
OutputStream outStream = executor.getOutputStream();
executor.connect();
return new ExecChannel(
outStream,
inputStream,
errStream,
new Supplier<Integer>() {
@Override
public Integer get() {
int exitStatus = executor.getExitStatus();
return exitStatus != -1 ? exitStatus : null;
}
},
new Closeable() {
@Override
public void close() throws IOException {
clear();
}
});
}
protected Builder fromSessionConnection(SessionConnection in) {
return hostAndPort(in.getHostAndPort())
.connectTimeout(in.getConnectTimeout())
.loginCredentials(in.getLoginCredentials());
}
@PreDestroy
public void disconnect() {
sessionConnection.clear();
}
private void checkConnected() {
checkState(
sessionConnection.getSession() != null && sessionConnection.getSession().isConnected(),
String.format("(%s) Session not connected!", toString()));
}