87 lines
3.0 KiB
Python
87 lines
3.0 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright: (c) 2013, Romeo Theriault <romeot () hawaii.edu>
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# Copyright: (c) 2016 Michael Gruener <michael.gruener@chaosmoon.net>
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# Copyright: (c) 2021 Felix Fontein <felix@fontein.de>
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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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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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import os
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import shutil
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import tempfile
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import traceback
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from ansible.module_utils.common.text.converters import to_native
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from ansible_collections.community.crypto.plugins.module_utils.acme.errors import ModuleFailException
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def read_file(fn, mode='b'):
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try:
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with open(fn, 'r' + mode) as f:
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return f.read()
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except Exception as e:
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raise ModuleFailException('Error while reading file "{0}": {1}'.format(fn, e))
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# This function was adapted from an earlier version of https://github.com/ansible/ansible/blob/devel/lib/ansible/modules/uri.py
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def write_file(module, dest, content):
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'''
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Write content to destination file dest, only if the content
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has changed.
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'''
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changed = False
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# create a tempfile
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fd, tmpsrc = tempfile.mkstemp(text=False)
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f = os.fdopen(fd, 'wb')
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try:
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f.write(content)
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except Exception as err:
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try:
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f.close()
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except Exception as dummy:
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pass
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os.remove(tmpsrc)
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raise ModuleFailException("failed to create temporary content file: %s" % to_native(err), exception=traceback.format_exc())
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f.close()
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checksum_src = None
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checksum_dest = None
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# raise an error if there is no tmpsrc file
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if not os.path.exists(tmpsrc):
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try:
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os.remove(tmpsrc)
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except Exception as dummy:
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pass
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raise ModuleFailException("Source %s does not exist" % (tmpsrc))
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if not os.access(tmpsrc, os.R_OK):
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os.remove(tmpsrc)
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raise ModuleFailException("Source %s not readable" % (tmpsrc))
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checksum_src = module.sha1(tmpsrc)
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# check if there is no dest file
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if os.path.exists(dest):
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# raise an error if copy has no permission on dest
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if not os.access(dest, os.W_OK):
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os.remove(tmpsrc)
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raise ModuleFailException("Destination %s not writable" % (dest))
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if not os.access(dest, os.R_OK):
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os.remove(tmpsrc)
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raise ModuleFailException("Destination %s not readable" % (dest))
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checksum_dest = module.sha1(dest)
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else:
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dirname = os.path.dirname(dest) or '.'
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if not os.access(dirname, os.W_OK):
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os.remove(tmpsrc)
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raise ModuleFailException("Destination dir %s not writable" % (dirname))
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if checksum_src != checksum_dest:
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try:
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shutil.copyfile(tmpsrc, dest)
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changed = True
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except Exception as err:
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os.remove(tmpsrc)
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raise ModuleFailException("failed to copy %s to %s: %s" % (tmpsrc, dest, to_native(err)), exception=traceback.format_exc())
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os.remove(tmpsrc)
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return changed
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