523 lines
23 KiB
Python
523 lines
23 KiB
Python
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# This file is part of Ansible
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# Copyright (c) 2017 Ansible Project
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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# Make coding more python3-ish
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import base64
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import json
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import os
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import os.path
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import shutil
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import tempfile
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import traceback
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import zipfile
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from ansible import constants as C
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from ansible.errors import AnsibleError, AnsibleFileNotFound
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from ansible.module_utils._text import to_bytes, to_native, to_text
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from ansible.module_utils.parsing.convert_bool import boolean
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from ansible.plugins.action import ActionBase
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from ansible.utils.hashing import checksum
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def _walk_dirs(topdir, loader, decrypt=True, base_path=None, local_follow=False, trailing_slash_detector=None, checksum_check=False):
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"""
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Walk a filesystem tree returning enough information to copy the files.
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This is similar to the _walk_dirs function in ``copy.py`` but returns
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a dict instead of a tuple for each entry and includes the checksum of
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a local file if wanted.
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:arg topdir: The directory that the filesystem tree is rooted at
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:arg loader: The self._loader object from ActionBase
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:kwarg decrypt: Whether to decrypt a file encrypted with ansible-vault
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:kwarg base_path: The initial directory structure to strip off of the
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files for the destination directory. If this is None (the default),
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the base_path is set to ``top_dir``.
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:kwarg local_follow: Whether to follow symlinks on the source. When set
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to False, no symlinks are dereferenced. When set to True (the
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default), the code will dereference most symlinks. However, symlinks
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can still be present if needed to break a circular link.
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:kwarg trailing_slash_detector: Function to determine if a path has
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a trailing directory separator. Only needed when dealing with paths on
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a remote machine (in which case, pass in a function that is aware of the
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directory separator conventions on the remote machine).
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:kawrg whether to get the checksum of the local file and add to the dict
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:returns: dictionary of dictionaries. All of the path elements in the structure are text string.
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This separates all the files, directories, and symlinks along with
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import information about each::
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{
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'files'; [{
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src: '/absolute/path/to/copy/from',
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dest: 'relative/path/to/copy/to',
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checksum: 'b54ba7f5621240d403f06815f7246006ef8c7d43'
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}, ...],
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'directories'; [{
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src: '/absolute/path/to/copy/from',
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dest: 'relative/path/to/copy/to'
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}, ...],
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'symlinks'; [{
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src: '/symlink/target/path',
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dest: 'relative/path/to/copy/to'
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}, ...],
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}
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The ``symlinks`` field is only populated if ``local_follow`` is set to False
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*or* a circular symlink cannot be dereferenced. The ``checksum`` entry is set
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to None if checksum_check=False.
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"""
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# Convert the path segments into byte strings
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r_files = {'files': [], 'directories': [], 'symlinks': []}
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def _recurse(topdir, rel_offset, parent_dirs, rel_base=u'', checksum_check=False):
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"""
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This is a closure (function utilizing variables from it's parent
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function's scope) so that we only need one copy of all the containers.
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Note that this function uses side effects (See the Variables used from
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outer scope).
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:arg topdir: The directory we are walking for files
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:arg rel_offset: Integer defining how many characters to strip off of
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the beginning of a path
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:arg parent_dirs: Directories that we're copying that this directory is in.
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:kwarg rel_base: String to prepend to the path after ``rel_offset`` is
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applied to form the relative path.
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Variables used from the outer scope
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:r_files: Dictionary of files in the hierarchy. See the return value
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for :func:`walk` for the structure of this dictionary.
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:local_follow: Read-only inside of :func:`_recurse`. Whether to follow symlinks
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"""
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for base_path, sub_folders, files in os.walk(topdir):
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for filename in files:
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filepath = os.path.join(base_path, filename)
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dest_filepath = os.path.join(rel_base, filepath[rel_offset:])
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if os.path.islink(filepath):
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# Dereference the symlnk
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real_file = loader.get_real_file(os.path.realpath(filepath), decrypt=decrypt)
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if local_follow and os.path.isfile(real_file):
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# Add the file pointed to by the symlink
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r_files['files'].append(
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{
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"src": real_file,
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"dest": dest_filepath,
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"checksum": _get_local_checksum(checksum_check, real_file)
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}
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)
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else:
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# Mark this file as a symlink to copy
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r_files['symlinks'].append({"src": os.readlink(filepath), "dest": dest_filepath})
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else:
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# Just a normal file
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real_file = loader.get_real_file(filepath, decrypt=decrypt)
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r_files['files'].append(
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{
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"src": real_file,
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"dest": dest_filepath,
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"checksum": _get_local_checksum(checksum_check, real_file)
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}
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)
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for dirname in sub_folders:
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dirpath = os.path.join(base_path, dirname)
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dest_dirpath = os.path.join(rel_base, dirpath[rel_offset:])
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real_dir = os.path.realpath(dirpath)
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dir_stats = os.stat(real_dir)
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if os.path.islink(dirpath):
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if local_follow:
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if (dir_stats.st_dev, dir_stats.st_ino) in parent_dirs:
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# Just insert the symlink if the target directory
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# exists inside of the copy already
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r_files['symlinks'].append({"src": os.readlink(dirpath), "dest": dest_dirpath})
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else:
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# Walk the dirpath to find all parent directories.
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new_parents = set()
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parent_dir_list = os.path.dirname(dirpath).split(os.path.sep)
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for parent in range(len(parent_dir_list), 0, -1):
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parent_stat = os.stat(u'/'.join(parent_dir_list[:parent]))
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if (parent_stat.st_dev, parent_stat.st_ino) in parent_dirs:
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# Reached the point at which the directory
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# tree is already known. Don't add any
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# more or we might go to an ancestor that
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# isn't being copied.
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break
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new_parents.add((parent_stat.st_dev, parent_stat.st_ino))
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if (dir_stats.st_dev, dir_stats.st_ino) in new_parents:
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# This was a a circular symlink. So add it as
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# a symlink
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r_files['symlinks'].append({"src": os.readlink(dirpath), "dest": dest_dirpath})
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else:
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# Walk the directory pointed to by the symlink
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r_files['directories'].append({"src": real_dir, "dest": dest_dirpath})
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offset = len(real_dir) + 1
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_recurse(real_dir, offset, parent_dirs.union(new_parents),
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rel_base=dest_dirpath,
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checksum_check=checksum_check)
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else:
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# Add the symlink to the destination
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r_files['symlinks'].append({"src": os.readlink(dirpath), "dest": dest_dirpath})
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else:
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# Just a normal directory
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r_files['directories'].append({"src": dirpath, "dest": dest_dirpath})
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# Check if the source ends with a "/" so that we know which directory
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# level to work at (similar to rsync)
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source_trailing_slash = False
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if trailing_slash_detector:
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source_trailing_slash = trailing_slash_detector(topdir)
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else:
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source_trailing_slash = topdir.endswith(os.path.sep)
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# Calculate the offset needed to strip the base_path to make relative
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# paths
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if base_path is None:
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base_path = topdir
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if not source_trailing_slash:
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base_path = os.path.dirname(base_path)
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if topdir.startswith(base_path):
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offset = len(base_path)
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# Make sure we're making the new paths relative
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if trailing_slash_detector and not trailing_slash_detector(base_path):
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offset += 1
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elif not base_path.endswith(os.path.sep):
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offset += 1
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if os.path.islink(topdir) and not local_follow:
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r_files['symlinks'] = {"src": os.readlink(topdir), "dest": os.path.basename(topdir)}
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return r_files
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dir_stats = os.stat(topdir)
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parents = frozenset(((dir_stats.st_dev, dir_stats.st_ino),))
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# Actually walk the directory hierarchy
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_recurse(topdir, offset, parents, checksum_check=checksum_check)
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return r_files
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def _get_local_checksum(get_checksum, local_path):
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if get_checksum:
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return checksum(local_path)
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else:
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return None
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class ActionModule(ActionBase):
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WIN_PATH_SEPARATOR = "\\"
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def _create_content_tempfile(self, content):
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''' Create a tempfile containing defined content '''
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fd, content_tempfile = tempfile.mkstemp(dir=C.DEFAULT_LOCAL_TMP)
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f = os.fdopen(fd, 'wb')
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content = to_bytes(content)
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try:
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f.write(content)
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except Exception as err:
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os.remove(content_tempfile)
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raise Exception(err)
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finally:
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f.close()
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return content_tempfile
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def _create_zip_tempfile(self, files, directories):
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tmpdir = tempfile.mkdtemp(dir=C.DEFAULT_LOCAL_TMP)
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zip_file_path = os.path.join(tmpdir, "win_copy.zip")
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zip_file = zipfile.ZipFile(zip_file_path, "w", zipfile.ZIP_STORED, True)
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# encoding the file/dir name with base64 so Windows can unzip a unicode
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# filename and get the right name, Windows doesn't handle unicode names
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# very well
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for directory in directories:
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directory_path = to_bytes(directory['src'], errors='surrogate_or_strict')
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archive_path = to_bytes(directory['dest'], errors='surrogate_or_strict')
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encoded_path = to_text(base64.b64encode(archive_path), errors='surrogate_or_strict')
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zip_file.write(directory_path, encoded_path, zipfile.ZIP_DEFLATED)
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for file in files:
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file_path = to_bytes(file['src'], errors='surrogate_or_strict')
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archive_path = to_bytes(file['dest'], errors='surrogate_or_strict')
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encoded_path = to_text(base64.b64encode(archive_path), errors='surrogate_or_strict')
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zip_file.write(file_path, encoded_path, zipfile.ZIP_DEFLATED)
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return zip_file_path
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def _remove_tempfile_if_content_defined(self, content, content_tempfile):
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if content is not None:
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os.remove(content_tempfile)
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def _copy_single_file(self, local_file, dest, source_rel, task_vars, tmp, backup):
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if self._play_context.check_mode:
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module_return = dict(changed=True)
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return module_return
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# copy the file across to the server
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tmp_src = self._connection._shell.join_path(tmp, 'source')
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self._transfer_file(local_file, tmp_src)
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copy_args = self._task.args.copy()
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copy_args.update(
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dict(
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dest=dest,
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src=tmp_src,
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_original_basename=source_rel,
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_copy_mode="single",
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backup=backup,
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)
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)
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copy_args.pop('content', None)
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copy_result = self._execute_module(module_name="copy",
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module_args=copy_args,
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task_vars=task_vars)
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return copy_result
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def _copy_zip_file(self, dest, files, directories, task_vars, tmp, backup):
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# create local zip file containing all the files and directories that
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# need to be copied to the server
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if self._play_context.check_mode:
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module_return = dict(changed=True)
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return module_return
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try:
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zip_file = self._create_zip_tempfile(files, directories)
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except Exception as e:
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module_return = dict(
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changed=False,
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failed=True,
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msg="failed to create tmp zip file: %s" % to_text(e),
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exception=traceback.format_exc()
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)
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return module_return
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zip_path = self._loader.get_real_file(zip_file)
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# send zip file to remote, file must end in .zip so
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# Com Shell.Application works
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tmp_src = self._connection._shell.join_path(tmp, 'source.zip')
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self._transfer_file(zip_path, tmp_src)
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# run the explode operation of win_copy on remote
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copy_args = self._task.args.copy()
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copy_args.update(
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dict(
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src=tmp_src,
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dest=dest,
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_copy_mode="explode",
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backup=backup,
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)
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)
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copy_args.pop('content', None)
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module_return = self._execute_module(module_name='copy',
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module_args=copy_args,
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task_vars=task_vars)
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shutil.rmtree(os.path.dirname(zip_path))
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return module_return
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def run(self, tmp=None, task_vars=None):
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''' handler for file transfer operations '''
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if task_vars is None:
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task_vars = dict()
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result = super(ActionModule, self).run(tmp, task_vars)
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del tmp # tmp no longer has any effect
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source = self._task.args.get('src', None)
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content = self._task.args.get('content', None)
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dest = self._task.args.get('dest', None)
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remote_src = boolean(self._task.args.get('remote_src', False), strict=False)
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local_follow = boolean(self._task.args.get('local_follow', False), strict=False)
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force = boolean(self._task.args.get('force', True), strict=False)
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decrypt = boolean(self._task.args.get('decrypt', True), strict=False)
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backup = boolean(self._task.args.get('backup', False), strict=False)
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|
|
result['src'] = source
|
||
|
|
result['dest'] = dest
|
||
|
|
|
||
|
|
result['failed'] = True
|
||
|
|
if (source is None and content is None) or dest is None:
|
||
|
|
result['msg'] = "src (or content) and dest are required"
|
||
|
|
elif source is not None and content is not None:
|
||
|
|
result['msg'] = "src and content are mutually exclusive"
|
||
|
|
elif content is not None and dest is not None and (
|
||
|
|
dest.endswith(os.path.sep) or dest.endswith(self.WIN_PATH_SEPARATOR)):
|
||
|
|
result['msg'] = "dest must be a file if content is defined"
|
||
|
|
else:
|
||
|
|
del result['failed']
|
||
|
|
|
||
|
|
if result.get('failed'):
|
||
|
|
return result
|
||
|
|
|
||
|
|
# If content is defined make a temp file and write the content into it
|
||
|
|
content_tempfile = None
|
||
|
|
if content is not None:
|
||
|
|
try:
|
||
|
|
# if content comes to us as a dict it should be decoded json.
|
||
|
|
# We need to encode it back into a string and write it out
|
||
|
|
if isinstance(content, dict) or isinstance(content, list):
|
||
|
|
content_tempfile = self._create_content_tempfile(json.dumps(content))
|
||
|
|
else:
|
||
|
|
content_tempfile = self._create_content_tempfile(content)
|
||
|
|
source = content_tempfile
|
||
|
|
except Exception as err:
|
||
|
|
result['failed'] = True
|
||
|
|
result['msg'] = "could not write content tmp file: %s" % to_native(err)
|
||
|
|
return result
|
||
|
|
# all actions should occur on the remote server, run win_copy module
|
||
|
|
elif remote_src:
|
||
|
|
new_module_args = self._task.args.copy()
|
||
|
|
new_module_args.update(
|
||
|
|
dict(
|
||
|
|
_copy_mode="remote",
|
||
|
|
dest=dest,
|
||
|
|
src=source,
|
||
|
|
force=force,
|
||
|
|
backup=backup,
|
||
|
|
)
|
||
|
|
)
|
||
|
|
new_module_args.pop('content', None)
|
||
|
|
result.update(self._execute_module(module_args=new_module_args, task_vars=task_vars))
|
||
|
|
return result
|
||
|
|
# find_needle returns a path that may not have a trailing slash on a
|
||
|
|
# directory so we need to find that out first and append at the end
|
||
|
|
else:
|
||
|
|
trailing_slash = source.endswith(os.path.sep)
|
||
|
|
try:
|
||
|
|
# find in expected paths
|
||
|
|
source = self._find_needle('files', source)
|
||
|
|
except AnsibleError as e:
|
||
|
|
result['failed'] = True
|
||
|
|
result['msg'] = to_text(e)
|
||
|
|
result['exception'] = traceback.format_exc()
|
||
|
|
return result
|
||
|
|
|
||
|
|
if trailing_slash != source.endswith(os.path.sep):
|
||
|
|
if source[-1] == os.path.sep:
|
||
|
|
source = source[:-1]
|
||
|
|
else:
|
||
|
|
source = source + os.path.sep
|
||
|
|
|
||
|
|
# A list of source file tuples (full_path, relative_path) which will try to copy to the destination
|
||
|
|
source_files = {'files': [], 'directories': [], 'symlinks': []}
|
||
|
|
|
||
|
|
# If source is a directory populate our list else source is a file and translate it to a tuple.
|
||
|
|
if os.path.isdir(to_bytes(source, errors='surrogate_or_strict')):
|
||
|
|
result['operation'] = 'folder_copy'
|
||
|
|
|
||
|
|
# Get a list of the files we want to replicate on the remote side
|
||
|
|
source_files = _walk_dirs(source, self._loader, decrypt=decrypt, local_follow=local_follow,
|
||
|
|
trailing_slash_detector=self._connection._shell.path_has_trailing_slash,
|
||
|
|
checksum_check=force)
|
||
|
|
|
||
|
|
# If it's recursive copy, destination is always a dir,
|
||
|
|
# explicitly mark it so (note - win_copy module relies on this).
|
||
|
|
if not self._connection._shell.path_has_trailing_slash(dest):
|
||
|
|
dest = "%s%s" % (dest, self.WIN_PATH_SEPARATOR)
|
||
|
|
|
||
|
|
check_dest = dest
|
||
|
|
# Source is a file, add details to source_files dict
|
||
|
|
else:
|
||
|
|
result['operation'] = 'file_copy'
|
||
|
|
|
||
|
|
# If the local file does not exist, get_real_file() raises AnsibleFileNotFound
|
||
|
|
try:
|
||
|
|
source_full = self._loader.get_real_file(source, decrypt=decrypt)
|
||
|
|
except AnsibleFileNotFound as e:
|
||
|
|
result['failed'] = True
|
||
|
|
result['msg'] = "could not find src=%s, %s" % (source_full, to_text(e))
|
||
|
|
return result
|
||
|
|
|
||
|
|
original_basename = os.path.basename(source)
|
||
|
|
result['original_basename'] = original_basename
|
||
|
|
|
||
|
|
# check if dest ends with / or \ and append source filename to dest
|
||
|
|
if self._connection._shell.path_has_trailing_slash(dest):
|
||
|
|
check_dest = dest
|
||
|
|
filename = original_basename
|
||
|
|
result['dest'] = self._connection._shell.join_path(dest, filename)
|
||
|
|
else:
|
||
|
|
# replace \\ with / so we can use os.path to get the filename or dirname
|
||
|
|
unix_path = dest.replace(self.WIN_PATH_SEPARATOR, os.path.sep)
|
||
|
|
filename = os.path.basename(unix_path)
|
||
|
|
check_dest = os.path.dirname(unix_path)
|
||
|
|
|
||
|
|
file_checksum = _get_local_checksum(force, source_full)
|
||
|
|
source_files['files'].append(
|
||
|
|
dict(
|
||
|
|
src=source_full,
|
||
|
|
dest=filename,
|
||
|
|
checksum=file_checksum
|
||
|
|
)
|
||
|
|
)
|
||
|
|
result['checksum'] = file_checksum
|
||
|
|
result['size'] = os.path.getsize(to_bytes(source_full, errors='surrogate_or_strict'))
|
||
|
|
|
||
|
|
# find out the files/directories/symlinks that we need to copy to the server
|
||
|
|
query_args = self._task.args.copy()
|
||
|
|
query_args.update(
|
||
|
|
dict(
|
||
|
|
_copy_mode="query",
|
||
|
|
dest=check_dest,
|
||
|
|
force=force,
|
||
|
|
files=source_files['files'],
|
||
|
|
directories=source_files['directories'],
|
||
|
|
symlinks=source_files['symlinks'],
|
||
|
|
)
|
||
|
|
)
|
||
|
|
# src is not required for query, will fail path validation is src has unix allowed chars
|
||
|
|
query_args.pop('src', None)
|
||
|
|
|
||
|
|
query_args.pop('content', None)
|
||
|
|
query_return = self._execute_module(module_args=query_args,
|
||
|
|
task_vars=task_vars)
|
||
|
|
|
||
|
|
if query_return.get('failed') is True:
|
||
|
|
result.update(query_return)
|
||
|
|
return result
|
||
|
|
|
||
|
|
if len(query_return['files']) > 0 or len(query_return['directories']) > 0 and self._connection._shell.tmpdir is None:
|
||
|
|
self._connection._shell.tmpdir = self._make_tmp_path()
|
||
|
|
|
||
|
|
if len(query_return['files']) == 1 and len(query_return['directories']) == 0:
|
||
|
|
# we only need to copy 1 file, don't mess around with zips
|
||
|
|
file_src = query_return['files'][0]['src']
|
||
|
|
file_dest = query_return['files'][0]['dest']
|
||
|
|
result.update(self._copy_single_file(file_src, dest, file_dest,
|
||
|
|
task_vars, self._connection._shell.tmpdir, backup))
|
||
|
|
if result.get('failed') is True:
|
||
|
|
result['msg'] = "failed to copy file %s: %s" % (file_src, result['msg'])
|
||
|
|
result['changed'] = True
|
||
|
|
|
||
|
|
elif len(query_return['files']) > 0 or len(query_return['directories']) > 0:
|
||
|
|
# either multiple files or directories need to be copied, compress
|
||
|
|
# to a zip and 'explode' the zip on the server
|
||
|
|
# TODO: handle symlinks
|
||
|
|
result.update(self._copy_zip_file(dest, source_files['files'],
|
||
|
|
source_files['directories'],
|
||
|
|
task_vars, self._connection._shell.tmpdir, backup))
|
||
|
|
result['changed'] = True
|
||
|
|
else:
|
||
|
|
# no operations need to occur
|
||
|
|
result['failed'] = False
|
||
|
|
result['changed'] = False
|
||
|
|
|
||
|
|
# remove the content tmp file and remote tmp file if it was created
|
||
|
|
self._remove_tempfile_if_content_defined(content, content_tempfile)
|
||
|
|
self._remove_tmp_path(self._connection._shell.tmpdir)
|
||
|
|
return result
|