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  $   ˆl–Ðz¾”Ji?u4 ^¸ËwÒ˜´oÀ„-:ç¿ÂÄ 4¤    #!/usr/bin/env python
# Copyright: (c) 2017, Ansible Project
# 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


import argparse
import fcntl
import hashlib
import io
import os
import pickle
import signal
import socket
import sys
import time
import traceback
import errno
import json

from contextlib import contextmanager

from ansible import constants as C
from ansible.cli.arguments import option_helpers as opt_help
from ansible.module_utils._text import to_bytes, to_text
from ansible.module_utils.connection import Connection, ConnectionError, send_data, recv_data
from ansible.module_utils.service import fork_process
from ansible.parsing.ajson import AnsibleJSONEncoder, AnsibleJSONDecoder
from ansible.playbook.play_context import PlayContext
from ansible.plugins.loader import connection_loader
from ansible.utils.path import unfrackpath, makedirs_safe
from ansible.utils.display import Display
from ansible.utils.jsonrpc import JsonRpcServer

display = Display()


def read_stream(byte_stream):
    size = int(byte_stream.readline().strip())

    data = byte_stream.read(size)
    if len(data) < size:
        raise Exception("EOF found before data was complete")

    data_hash = to_text(byte_stream.readline().strip())
    if data_hash != hashlib.sha1(data).hexdigest():
        raise Exception("Read {0} bytes, but data did not match checksum".format(size))

    # restore escaped loose \r characters
    data = data.replace(br'\r', b'\r')

    return data


@contextmanager
def file_lock(lock_path):
    """
    Uses contextmanager to create and release a file lock based on the
    given path. This allows us to create locks using `with file_lock()`
    to prevent deadlocks related to failure to unlock properly.
    """

    lock_fd = os.open(lock_path, os.O_RDWR | os.O_CREAT, 0o600)
    fcntl.lockf(lock_fd, fcntl.LOCK_EX)
    yield
    fcntl.lockf(lock_fd, fcntl.LOCK_UN)
    os.close(lock_fd)


class ConnectionProcess(object):
    '''
    The connection process wraps around a Connection object that manages
    the connection to a remote device that persists over the playbook
    '''
    def __init__(self, fd, play_context, socket_path, original_path, task_uuid=None, ansible_playbook_pid=None):
        self.play_context = play_context
        self.socket_path = socket_path
        self.original_path = original_path
        self._task_uuid = task_uuid

        self.fd = fd
        self.exception = None

        self.srv = JsonRpcServer()
        self.sock = None

        self.connection = None
        self._ansible_playbook_pid = ansible_playbook_pid

    def start(self, options):
        messages = list()
        result = {}

        try:
            messages.append(('vvvv', 'control socket path is %s' % self.socket_path))

            # If this is a relative path (~ gets expanded later) then plug the
            # key's path on to the directory we originally came from, so we can
            # find it now that our cwd is /
            if self.play_context.private_key_file and self.play_context.private_key_file[0] not in '~/':
                self.play_context.private_key_file = os.path.join(self.original_path, self.play_context.private_key_file)
            self.connection = connection_loader.get(self.play_context.connection, self.play_context, '/dev/null',
                                                    task_uuid=self._task_uuid, ansible_playbook_pid=self._ansible_playbook_pid)
            try:
                self.connection.set_options(direct=options)
            except ConnectionError as exc:
                messages.append(('debug', to_text(exc)))
                raise ConnectionError('Unable to decode JSON from response set_options. See the debug log for more information.')

            self.connection._socket_path = self.socket_path
            self.srv.register(self.connection)
            messages.extend([('vvvv', msg) for msg in s