190 lines
7.9 KiB
Python
190 lines
7.9 KiB
Python
# (c) 2012, Michael DeHaan <michael.dehaan@gmail.com>
|
|
# (c) 2015, 2017 Toshio Kuratomi <tkuratomi@ansible.com>
|
|
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
|
|
|
|
from __future__ import (absolute_import, division, print_function)
|
|
__metaclass__ = type
|
|
|
|
DOCUMENTATION = '''
|
|
name: local
|
|
short_description: execute on controller
|
|
description:
|
|
- This connection plugin allows ansible to execute tasks on the Ansible 'controller' instead of on a remote host.
|
|
author: ansible (@core)
|
|
version_added: historical
|
|
extends_documentation_fragment:
|
|
- connection_pipelining
|
|
notes:
|
|
- The remote user is ignored, the user with which the ansible CLI was executed is used instead.
|
|
'''
|
|
|
|
import os
|
|
import pty
|
|
import shutil
|
|
import subprocess
|
|
import fcntl
|
|
import getpass
|
|
|
|
import ansible.constants as C
|
|
from ansible.errors import AnsibleError, AnsibleFileNotFound
|
|
from ansible.module_utils.compat import selectors
|
|
from ansible.module_utils.six import text_type, binary_type
|
|
from ansible.module_utils._text import to_bytes, to_native, to_text
|
|
from ansible.plugins.connection import ConnectionBase
|
|
from ansible.utils.display import Display
|
|
from ansible.utils.path import unfrackpath
|
|
|
|
display = Display()
|
|
|
|
|
|
class Connection(ConnectionBase):
|
|
''' Local based connections '''
|
|
|
|
transport = 'local'
|
|
has_pipelining = True
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
|
|
super(Connection, self).__init__(*args, **kwargs)
|
|
self.cwd = None
|
|
self.default_user = getpass.getuser()
|
|
|
|
def _connect(self):
|
|
''' connect to the local host; nothing to do here '''
|
|
|
|
# Because we haven't made any remote connection we're running as
|
|
# the local user, rather than as whatever is configured in remote_user.
|
|
self._play_context.remote_user = self.default_user
|
|
|
|
if not self._connected:
|
|
display.vvv(u"ESTABLISH LOCAL CONNECTION FOR USER: {0}".format(self._play_context.remote_user), host=self._play_context.remote_addr)
|
|
self._connected = True
|
|
return self
|
|
|
|
def exec_command(self, cmd, in_data=None, sudoable=True):
|
|
''' run a command on the local host '''
|
|
|
|
super(Connection, self).exec_command(cmd, in_data=in_data, sudoable=sudoable)
|
|
|
|
display.debug("in local.exec_command()")
|
|
|
|
executable = C.DEFAULT_EXECUTABLE.split()[0] if C.DEFAULT_EXECUTABLE else None
|
|
|
|
if not os.path.exists(to_bytes(executable, errors='surrogate_or_strict')):
|
|
raise AnsibleError("failed to find the executable specified %s."
|
|
" Please verify if the executable exists and re-try." % executable)
|
|
|
|
display.vvv(u"EXEC {0}".format(to_text(cmd)), host=self._play_context.remote_addr)
|
|
display.debug("opening command with Popen()")
|
|
|
|
if isinstance(cmd, (text_type, binary_type)):
|
|
cmd = to_bytes(cmd)
|
|
else:
|
|
cmd = map(to_bytes, cmd)
|
|
|
|
master = None
|
|
stdin = subprocess.PIPE
|
|
if sudoable and self.become and self.become.expect_prompt() and not self.get_option('pipelining'):
|
|
# Create a pty if sudoable for privlege escalation that needs it.
|
|
# Falls back to using a standard pipe if this fails, which may
|
|
# cause the command to fail in certain situations where we are escalating
|
|
# privileges or the command otherwise needs a pty.
|
|
try:
|
|
master, stdin = pty.openpty()
|
|
except (IOError, OSError) as e:
|
|
display.debug("Unable to open pty: %s" % to_native(e))
|
|
|
|
p = subprocess.Popen(
|
|
cmd,
|
|
shell=isinstance(cmd, (text_type, binary_type)),
|
|
executable=executable,
|
|
cwd=self.cwd,
|
|
stdin=stdin,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE,
|
|
)
|
|
|
|
# if we created a master, we can close the other half of the pty now, otherwise master is stdin
|
|
if master is not None:
|
|
os.close(stdin)
|
|
|
|
display.debug("done running command with Popen()")
|
|
|
|
if self.become and self.become.expect_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)
|
|
selector = selectors.DefaultSelector()
|
|
selector.register(p.stdout, selectors.EVENT_READ)
|
|
selector.register(p.stderr, selectors.EVENT_READ)
|
|
|
|
become_output = b''
|
|
try:
|
|
while not self.become.check_success(become_output) and not self.become.check_password_prompt(become_output):
|
|
events = selector.select(self._play_context.timeout)
|
|
if not events:
|
|
stdout, stderr = p.communicate()
|
|
raise AnsibleError('timeout waiting for privilege escalation password prompt:\n' + to_native(become_output))
|
|
|
|
for key, event in events:
|
|
if key.fileobj == p.stdout:
|
|
chunk = p.stdout.read()
|
|
elif key.fileobj == p.stderr:
|
|
chunk = p.stderr.read()
|
|
|
|
if not chunk:
|
|
stdout, stderr = p.communicate()
|
|
raise AnsibleError('privilege output closed while waiting for password prompt:\n' + to_native(become_output))
|
|
become_output += chunk
|
|
finally:
|
|
selector.close()
|
|
|
|
if not self.become.check_success(become_output):
|
|
become_pass = self.become.get_option('become_pass', playcontext=self._play_context)
|
|
if master is None:
|
|
p.stdin.write(to_bytes(become_pass, errors='surrogate_or_strict') + b'\n')
|
|
else:
|
|
os.write(master, to_bytes(become_pass, errors='surrogate_or_strict') + b'\n')
|
|
|
|
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)
|
|
|
|
display.debug("getting output with communicate()")
|
|
stdout, stderr = p.communicate(in_data)
|
|
display.debug("done communicating")
|
|
|
|
# finally, close the other half of the pty, if it was created
|
|
if master:
|
|
os.close(master)
|
|
|
|
display.debug("done with local.exec_command()")
|
|
return (p.returncode, stdout, stderr)
|
|
|
|
def put_file(self, in_path, out_path):
|
|
''' transfer a file from local to local '''
|
|
|
|
super(Connection, self).put_file(in_path, out_path)
|
|
|
|
in_path = unfrackpath(in_path, basedir=self.cwd)
|
|
out_path = unfrackpath(out_path, basedir=self.cwd)
|
|
|
|
display.vvv(u"PUT {0} TO {1}".format(in_path, out_path), host=self._play_context.remote_addr)
|
|
if not os.path.exists(to_bytes(in_path, errors='surrogate_or_strict')):
|
|
raise AnsibleFileNotFound("file or module does not exist: {0}".format(to_native(in_path)))
|
|
try:
|
|
shutil.copyfile(to_bytes(in_path, errors='surrogate_or_strict'), to_bytes(out_path, errors='surrogate_or_strict'))
|
|
except shutil.Error:
|
|
raise AnsibleError("failed to copy: {0} and {1} are the same".format(to_native(in_path), to_native(out_path)))
|
|
except IOError as e:
|
|
raise AnsibleError("failed to transfer file to {0}: {1}".format(to_native(out_path), to_native(e)))
|
|
|
|
def fetch_file(self, in_path, out_path):
|
|
''' fetch a file from local to local -- for compatibility '''
|
|
|
|
super(Connection, self).fetch_file(in_path, out_path)
|
|
|
|
display.vvv(u"FETCH {0} TO {1}".format(in_path, out_path), host=self._play_context.remote_addr)
|
|
self.put_file(in_path, out_path)
|
|
|
|
def close(self):
|
|
''' terminate the connection; nothing to do here '''
|
|
self._connected = False
|