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Code Issues Releases Wiki Activity

TelnetConnection: allow username and/or password to be optional

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If username is set to None, no '-l' option is appended to the telnet command.
If password is set to None, devlib does not wait for a password prompt when
connecting.
This commit is contained in:
Gareth Stockwell 2016-07-29 15:49:41 +01:00
parent 76b059c6b1
commit f24493676c
1 changed files with 17 additions and 9 deletions
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26
devlib/utils/ssh.py
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@ -83,18 +83,26 @@ class TelnetConnection(pxssh.pxssh):
def login(self, server, username, password='', login_timeout=10,
auto_prompt_reset=True, sync_multiplier=1, port=23):
cmd = 'telnet -l {} {} {}'.format(username, server, port)
args = ['telnet']
if username is not None:
args += ['-l', username]
args += [server, str(port)]
cmd = ' '.join(args)
spawn._spawn(self, cmd) # pylint: disable=protected-access
i = self.expect('(?i)(?:password)', timeout=login_timeout)
if i == 0:
self.sendline(password)
i = self.expect([self.original_prompt, 'Login incorrect'], timeout=login_timeout)
else:
raise pxssh.ExceptionPxssh('could not log in: did not see a password prompt')
if i:
raise pxssh.ExceptionPxssh('could not log in: password was incorrect')
if password is None:
i = self.expect([self.original_prompt, 'Login timed out'], timeout=login_timeout)
else:
i = self.expect('(?i)(?:password)', timeout=login_timeout)
if i == 0:
self.sendline(password)
i = self.expect([self.original_prompt, 'Login incorrect'], timeout=login_timeout)
else:
raise pxssh.ExceptionPxssh('could not log in: did not see a password prompt')
if i:
raise pxssh.ExceptionPxssh('could not log in: password was incorrect')
if not self.sync_original_prompt(sync_multiplier):
self.close()