def clear_ssh_tunnel(self, reason='timeout'):
self.lock.acquire()
error_flag = False
if self.ssh_tunnel:
proc_status = self.ssh_tunnel.poll()
if proc_status is None:
os.kill(self.ssh_tunnel.pid, signal.SIGUSR1)
logger.info('ssh reverse tunnel closed. Reason: {reason}'.format(reason = reason))
elif proc_status:
errors = ', '.join([line.strip() for line in self.ssh_tunnel.stderr])
if errors:
logger.error('ssh exited with errors: {errors}'.format(errors=errors))
if SEND_FAULT_SMS and self.phone:
pi_sms.send_sms(self.s, self.phone, 'SSH tunnel error. Log: {log}'.format(log=errors))
error_flag = True
ssh_info = ', '.join([l.strip() for l in self.ssh_tunnel.stdout])
if ssh_info:
logger.info('ssh event: {event}'.format(event=ssh_info))
if self.timer:
self.timer.cancel()
self.timer = None
if ACK_SMS and self.phone and not error_flag:
pi_sms.send_sms(self.s, self.phone, 'SSH tunnel closed')
self.ssh_tunnel = None
self.phone = None
self.lock.release()
def clear_ssh_tunnel(self, reason='timeout'):
self.lock.acquire()
error_flag = False
if self.ssh_tunnel:
proc_status = self.ssh_tunnel.poll()
if proc_status is None:
os.kill(self.ssh_tunnel.pid, signal.SIGUSR1)
logger.info(
'ssh reverse tunnel closed. Reason: {reason}'.format(
reason=reason))
elif proc_status:
errors = ', '.join(
[line.strip() for line in self.ssh_tunnel.stderr])
if errors:
logger.error('ssh exited with errors: {errors}'.format(
errors=errors))
if SEND_FAULT_SMS and self.phone:
pi_sms.send_sms(
self.s, self.phone,
'SSH tunnel error. Log: {log}'.format(log=errors))
error_flag = True
ssh_info = ', '.join([l.strip() for l in self.ssh_tunnel.stdout])
if ssh_info:
logger.info('ssh event: {event}'.format(event=ssh_info))
if self.timer:
self.timer.cancel()
self.timer = None
if ACK_SMS and self.phone and not error_flag:
pi_sms.send_sms(self.s, self.phone, 'SSH tunnel closed')
self.ssh_tunnel = None
self.phone = None
self.lock.release()
def open_reverse_ssh(self):
if not self.ssh_tunnel:
logger.info('Opened reverse SSH tunnel via {user}:{server}'.format(user=CLOUD_USER, server=CLOUD_SERVER))
self.ssh_tunnel = subprocess.Popen(['ssh', '-nNT', '-o', 'TCPKeepAlive=yes', '-R', '2222:localhost:22', CLOUD_USER + '@' + CLOUD_SERVER], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
if ACK_SMS and self.phone:
time.sleep(10)
if self.ssh_tunnel.poll() is None:
pi_sms.send_sms(self.s, self.phone, 'SSH tunnel set up')
self.timer = threading.Timer(SSH_PIPE_UP, self.clear_ssh_tunnel)
self.timer.start()
def open_reverse_ssh(self):
if not self.ssh_tunnel:
logger.info('Opened reverse SSH tunnel via {user}:{server}'.format(
user=CLOUD_USER, server=CLOUD_SERVER))
self.ssh_tunnel = subprocess.Popen([
'ssh', '-nNT', '-o', 'TCPKeepAlive=yes', '-R',
'2222:localhost:22', CLOUD_USER + '@' + CLOUD_SERVER
],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
if ACK_SMS and self.phone:
time.sleep(10)
if self.ssh_tunnel.poll() is None:
pi_sms.send_sms(self.s, self.phone, 'SSH tunnel set up')
self.timer = threading.Timer(SSH_PIPE_UP, self.clear_ssh_tunnel)
self.timer.start()
def info(self):
info = pi_sms.info(self.s)
pi_sms.send_sms(self.s, self.phone, info)
def info(self):
info = pi_sms.info(self.s)
pi_sms.send_sms(self.s, self.phone, info)
