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# -*- coding: utf-8 -*-
#
# Copyright (C) 2015 Matt Martz <matt@sivel.net>
# Copyright (C) 2015 Rackspace US, Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from __future__ import annotations
import ast
import datetime
import os
import re
import sys
from io import BytesIO, TextIOWrapper
import yaml
import yaml.reader
from ansible.module_utils._text import to_text
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.common.yaml import SafeLoader
from ansible.module_utils.six import string_types
from ansible.parsing.yaml.loader import AnsibleLoader
class AnsibleTextIOWrapper(TextIOWrapper):
def write(self, s):
super(AnsibleTextIOWrapper, self).write(to_text(s, self.encoding, errors='replace'))
def find_executable(executable, cwd=None, path=None):
"""Finds the full path to the executable specified"""
match = None
real_cwd = os.getcwd()
if not cwd:
cwd = real_cwd
if os.path.dirname(executable):
target = os.path.join(cwd, executable)
if os.path.exists(target) and os.access(target, os.F_OK | os.X_OK):
match = executable
else:
path = os.environ.get('PATH', os.path.defpath)
path_dirs = path.split(os.path.pathsep)
seen_dirs = set()
for path_dir in path_dirs:
if path_dir in seen_dirs:
continue
seen_dirs.add(path_dir)
if os.path.abspath(path_dir) == real_cwd:
path_dir = cwd
candidate = os.path.join(path_dir, executable)
if os.path.exists(candidate) and os.access(candidate, os.F_OK | os.X_OK):
match = candidate
break
return match
def find_globals(g, tree):
"""Uses AST to find globals in an ast tree"""
for child in tree:
if hasattr(child, 'body') and isinstance(child.body, list):
find_globals(g, child.body)
elif isinstance(child, (ast.FunctionDef, ast.ClassDef)):
g.add(child.name)
continue
elif isinstance(child, ast.Assign):
try:
g.add(child.targets[0].id)
except (IndexError, AttributeError):
pass
elif isinstance(child, ast.Import):
g.add(child.names[0].name)
elif isinstance(child, ast.ImportFrom):
for name in child.names:
g_name = name.asname or name.name
if g_name == '*':
continue
g.add(g_name)
class CaptureStd():
"""Context manager to handle capturing stderr and stdout"""
def __enter__(self):
self.sys_stdout = sys.stdout
self.sys_stderr = sys.stderr
sys.stdout = self.stdout = AnsibleTextIOWrapper(BytesIO(), encoding=self.sys_stdout.encoding)
sys.stderr = self.stderr = AnsibleTextIOWrapper(BytesIO(), encoding=self.sys_stderr.encoding)
return self
def __exit__(self, exc_type, exc_value, traceback):
sys.stdout = self.sys_stdout
sys.stderr = self.sys_stderr
def get(self):
"""Return ``(stdout, stderr)``"""
return self.stdout.buffer.getvalue(), self.stderr.buffer.getvalue()
def get_module_name_from_filename(filename, collection):
# Calculate the module's name so that relative imports work correctly
if collection:
# collection is a relative path, example: ansible_collections/my_namespace/my_collection
# filename is a relative path, example: plugins/modules/my_module.py
path = os.path.join(collection, filename)
else:
# filename is a relative path, example: lib/ansible/modules/system/ping.py
path = os.path.relpath(filename, 'lib')
name = os.path.splitext(path)[0].replace(os.path.sep, '.')
return name
def parse_yaml(value, lineno, module, name, load_all=False, ansible_loader=False):
traces = []
errors = []
data = None
if load_all:
yaml_load = yaml.load_all
else:
yaml_load = yaml.load
if ansible_loader:
loader = AnsibleLoader
else:
loader = SafeLoader
try:
data = yaml_load(value, Loader=loader)
if load_all:
data = list(data)
except yaml.MarkedYAMLError as e:
errors.append({
'msg': '%s is not valid YAML' % name,
'line': e.problem_mark.line + lineno,
'column': e.problem_mark.column + 1
})
traces.append(e)
except yaml.reader.ReaderError as e:
traces.append(e)
# TODO: Better line/column detection
errors.append({
'msg': ('%s is not valid YAML. Character '
'0x%x at position %d.' % (name, e.character, e.position)),
'line': lineno
})
except yaml.YAMLError as e:
traces.append(e)
errors.append({
'msg': '%s is not valid YAML: %s: %s' % (name, type(e), e),
'line': lineno
})
return data, errors, traces
def is_empty(value):
"""Evaluate null like values excluding False"""
if value is False:
return False
return not bool(value)
def compare_unordered_lists(a, b):
"""Safe list comparisons
Supports:
- unordered lists
- unhashable elements
"""
return len(a) == len(b) and all(x in b for x in a)
class NoArgsAnsibleModule(AnsibleModule):
"""AnsibleModule that does not actually load params. This is used to get access to the
methods within AnsibleModule without having to fake a bunch of data
"""
def _load_params(self):
self.params = {'_ansible_selinux_special_fs': [], '_ansible_remote_tmp': '/tmp', '_ansible_keep_remote_files': False, '_ansible_check_mode': False}
def parse_isodate(v, allow_date):
if allow_date:
if isinstance(v, datetime.date):
return v
msg = 'Expected ISO 8601 date string (YYYY-MM-DD) or YAML date'
else:
msg = 'Expected ISO 8601 date string (YYYY-MM-DD)'
if not isinstance(v, string_types):
raise ValueError(msg)
# From Python 3.7 in, there is datetime.date.fromisoformat(). For older versions,
# we have to do things manually.
if not re.match('^[0-9]{4}-[0-9]{2}-[0-9]{2}$', v):
raise ValueError(msg)
try:
return datetime.datetime.strptime(v, '%Y-%m-%d').date()
except ValueError:
raise ValueError(msg)
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