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Merge pull request #12250 from bcoca/become_clean

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Become clean
This commit is contained in:
Brian Coca 2015-09-04 10:49:45 -04:00
commit 4705409c9e
5 changed files with 77 additions and 71 deletions
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13
lib/ansible/playbook/play_context.py
View file

@ -335,6 +335,7 @@ class PlayContext(Base):
prompt = None
success_key = None
self.prompt = None
if executable is None:
executable = C.DEFAULT_EXECUTABLE
@ -366,13 +367,14 @@ class PlayContext(Base):
# directly doesn't work, so we shellquote it with pipes.quote() and pass the quoted
# string to the user's shell. We loop reading output until we see the randomly-generated
# sudo prompt set with the -p option.
prompt = '[sudo via ansible, key=%s] password: ' % randbits
# force quick error if password is required but not supplied, should prevent sudo hangs.
if not self.become_pass:
flags += " -n "
if self.become_pass:
prompt = '[sudo via ansible, key=%s] password: ' % randbits
becomecmd = '%s %s -p "%s" -S -u %s %s -c %s' % (exe, flags, prompt, self.become_user, executable, success_cmd)
else:
becomecmd = '%s %s -n -S -u %s %s -c %s' % (exe, flags, self.become_user, executable, success_cmd)
becomecmd = '%s %s -S -p "%s" -u %s %s -c %s' % (exe, flags, prompt, self.become_user, executable, success_cmd)
elif self.become_method == 'su':
@ -415,7 +417,8 @@ class PlayContext(Base):
else:
raise AnsibleError("Privilege escalation method not found: %s" % self.become_method)
self.prompt = prompt
if self.become_pass:
self.prompt = prompt
self.success_key = success_key
return ('%s -c %s' % (executable, pipes.quote(becomecmd)))

2
lib/ansible/plugins/connections/local.py
View file

@ -70,7 +70,7 @@ class Connection(ConnectionBase):
)
self._display.debug("done running command with Popen()")
if self._play_context.prompt and self._play_context.become_pass and sudoable:
if self._play_context.prompt and sudoable:
fcntl.fcntl(p.stdout, fcntl.F_SETFL, fcntl.fcntl(p.stdout, fcntl.F_GETFL) | os.O_NONBLOCK)
fcntl.fcntl(p.stderr, fcntl.F_SETFL, fcntl.fcntl(p.stderr, fcntl.F_GETFL) | os.O_NONBLOCK)
become_output = ''

47
lib/ansible/plugins/connections/paramiko_ssh.py
View file

@ -224,33 +224,32 @@ class Connection(ConnectionBase):
try:
chan.exec_command(cmd)
if self._play_context.prompt:
if self._play_context.become and self._play_context.become_pass:
passprompt = False
while True:
self._display.debug('Waiting for Privilege Escalation input')
if self.check_become_success(become_output):
break
elif self.check_password_prompt(become_output):
passprompt = True
break
passprompt = False
while True:
self._display.debug('Waiting for Privilege Escalation input')
if self.check_become_success(become_output):
break
elif self.check_password_prompt(become_output):
passprompt = True
break
chunk = chan.recv(bufsize)
self._display.debug("chunk is: %s" % chunk)
if not chunk:
if 'unknown user' in become_output:
raise AnsibleError( 'user %s does not exist' % become_user)
else:
break
#raise AnsibleError('ssh connection closed waiting for password prompt')
become_output += chunk
if passprompt:
if self._play_context.become and self._play_context.become_pass:
chan.sendall(self._play_context.become_pass + '\n')
chunk = chan.recv(bufsize)
self._display.debug("chunk is: %s" % chunk)
if not chunk:
if 'unknown user' in become_output:
raise AnsibleError( 'user %s does not exist' % become_user)
else:
raise AnsibleError("A password is reqired but none was supplied")
break
#raise AnsibleError('ssh connection closed waiting for password prompt')
become_output += chunk
if passprompt:
if self._play_context.become and self._play_context.become_pass:
chan.sendall(self._play_context.become_pass + '\n')
else:
no_prompt_out += become_output
no_prompt_err += become_output
raise AnsibleError("A password is reqired but none was supplied")
else:
no_prompt_out += become_output
no_prompt_err += become_output
except socket.timeout:
raise AnsibleError('ssh timed out waiting for privilege escalation.\n' + become_output)

77
lib/ansible/plugins/connections/ssh.py
View file

@ -378,54 +378,53 @@ class Connection(ConnectionBase):
self._display.debug("Handling privilege escalation password prompt.")
if self._play_context.become and self._play_context.become_pass:
fcntl.fcntl(p.stdout, fcntl.F_SETFL, fcntl.fcntl(p.stdout, fcntl.F_GETFL) | os.O_NONBLOCK)
fcntl.fcntl(p.stderr, fcntl.F_SETFL, fcntl.fcntl(p.stderr, fcntl.F_GETFL) | os.O_NONBLOCK)
fcntl.fcntl(p.stdout, fcntl.F_SETFL, fcntl.fcntl(p.stdout, fcntl.F_GETFL) | os.O_NONBLOCK)
fcntl.fcntl(p.stderr, fcntl.F_SETFL, fcntl.fcntl(p.stderr, fcntl.F_GETFL) | os.O_NONBLOCK)
become_output = ''
become_errput = ''
passprompt = False
while True:
self._display.debug('Waiting for Privilege Escalation input')
become_output = ''
become_errput = ''
passprompt = False
while True:
self._display.debug('Waiting for Privilege Escalation input')
if self.check_become_success(become_output + become_errput):
self._display.debug('Succeded!')
break
elif self.check_password_prompt(become_output) or self.check_password_prompt(become_errput):
self._display.debug('Password prompt!')
passprompt = True
break
if self.check_become_success(become_output + become_errput):
self._display.debug('Succeded!')
break
elif self.check_password_prompt(become_output) or self.check_password_prompt(become_errput):
self._display.debug('Password prompt!')
passprompt = True
break
self._display.debug('Read next chunks')
rfd, wfd, efd = select.select([p.stdout, p.stderr], [], [p.stdout], self._play_context.timeout)
if not rfd:
# timeout. wrap up process communication
stdout, stderr = p.communicate()
raise AnsibleError('Connection error waiting for privilege escalation password prompt: %s' % become_output)
self._display.debug('Read next chunks')
rfd, wfd, efd = select.select([p.stdout, p.stderr], [], [p.stdout], self._play_context.timeout)
if not rfd:
# timeout. wrap up process communication
stdout, stderr = p.communicate()
raise AnsibleError('Connection error waiting for privilege escalation password prompt: %s' % become_output)
elif p.stderr in rfd:
chunk = p.stderr.read()
become_errput += chunk
self._display.debug('stderr chunk is: %s' % chunk)
self.check_incorrect_password(become_errput)
elif p.stderr in rfd:
chunk = p.stderr.read()
become_errput += chunk
self._display.debug('stderr chunk is: %s' % chunk)
self.check_incorrect_password(become_errput)
elif p.stdout in rfd:
chunk = p.stdout.read()
become_output += chunk
self._display.debug('stdout chunk is: %s' % chunk)
elif p.stdout in rfd:
chunk = p.stdout.read()
become_output += chunk
self._display.debug('stdout chunk is: %s' % chunk)
if not chunk:
break
#raise AnsibleError('Connection closed waiting for privilege escalation password prompt: %s ' % become_output)
if not chunk:
break
#raise AnsibleError('Connection closed waiting for privilege escalation password prompt: %s ' % become_output)
if passprompt:
self._display.debug("Sending privilege escalation password.")
stdin.write(self._play_context.become_pass + '\n')
else:
no_prompt_out = become_output
no_prompt_err = become_errput
if passprompt:
self._display.debug("Sending privilege escalation password.")
stdin.write(self._play_context.become_pass + '\n')
else:
no_prompt_out = become_output
no_prompt_err = become_errput
(returncode, stdout, stderr) = self._communicate(p, stdin, in_data, sudoable=sudoable)

9
test/units/playbook/test_play_context.py
View file

@ -116,7 +116,7 @@ class TestPlayContext(unittest.TestCase):
default_cmd = "/bin/foo"
default_exe = "/bin/bash"
sudo_exe = C.DEFAULT_SUDO_EXE or 'sudo'
sudo_flags = C.DEFAULT_SUDO_FLAGS + " -n "
sudo_flags = C.DEFAULT_SUDO_FLAGS
su_exe = C.DEFAULT_SU_EXE or 'su'
su_flags = C.DEFAULT_SU_FLAGS or ''
pbrun_exe = 'pbrun'
@ -134,7 +134,12 @@ class TestPlayContext(unittest.TestCase):
play_context.become_method = 'sudo'
cmd = play_context.make_become_cmd(cmd=default_cmd, executable="/bin/bash")
self.assertEqual(cmd, """%s -c '%s %s -S -p "%s" -u %s %s -c '"'"'echo %s; %s'"'"''""" % (default_exe, sudo_exe, sudo_flags, play_context.prompt, play_context.become_user, default_exe, play_context.success_key, default_cmd))
self.assertEqual(cmd, """%s -c '%s %s -n -S -u %s %s -c '"'"'echo %s; %s'"'"''""" % (default_exe, sudo_exe, sudo_flags, play_context.become_user, default_exe, play_context.success_key, default_cmd))
play_context.become_pass = 'testpass'
cmd = play_context.make_become_cmd(cmd=default_cmd, executable=default_exe)
self.assertEqual(cmd, """%s -c '%s %s -p "%s" -S -u %s %s -c '"'"'echo %s; %s'"'"''""" % (default_exe, sudo_exe, sudo_flags, play_context.prompt, play_context.become_user, default_exe, play_context.success_key, default_cmd))
play_context.become_pass = None
play_context.become_method = 'su'
cmd = play_context.make_become_cmd(cmd=default_cmd, executable="/bin/bash")