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| 1 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved. |
| 2 # Use of this source code is governed by a BSD-style license that can be |
| 3 # found in the LICENSE file. |
| 4 |
| 5 import telnetlib, threading, time |
| 6 |
| 7 # Controls Server Technology CW-16V1-C20M switched CDUs over Telnet |
| 8 # Opens a new connection for every command to |
| 9 # avoid threading and address space conflicts |
| 10 |
| 11 class PowerStrip(): |
| 12 def __init__(self, host, user='admn', password='admn'): |
| 13 self.host = host |
| 14 self.user = user |
| 15 self.password = password |
| 16 |
| 17 def reboot(self, outlet, delay=0): |
| 18 self.command('reboot', outlet, delay) |
| 19 |
| 20 def off(self, outlet, delay=0): |
| 21 self.command('off', outlet, delay) |
| 22 |
| 23 def on(self, outlet, delay=0): |
| 24 self.command('on', outlet, delay) |
| 25 |
| 26 def command(self, command, outlet=1, delay=0): |
| 27 if delay == 0: |
| 28 self._do_command(command, outlet) |
| 29 else: |
| 30 threading.Timer(delay, self._do_command, (command, outlet)).start() |
| 31 |
| 32 def _do_command(self, command, outlet=1): |
| 33 tn = telnetlib.Telnet(self.host) |
| 34 tn.read_until('Username: ') |
| 35 tn.write(self.user + '\n') |
| 36 tn.read_until('Password: ') |
| 37 tn.write(self.password + '\n') |
| 38 tn.read_until('Switched CDU: ') |
| 39 tn.write('%s .a%d\n' % (command, outlet)) |
| 40 tn.read_some() |
| 41 tn.close() |
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