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# (c) 2012, Daniel Hokka Zakrisson <daniel@hozac.com>
# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.com> and others
# (c) 2017, Toshio Kuratomi <tkuratomi@ansible.com>
#
# This file is part of Ansible
#
# Ansible 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.
#
# Ansible 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 Ansible. If not, see <http://www.gnu.org/licenses/>.
from __future__ import annotations
import abc
import functools
import types
import typing as t
from ansible import constants as C
from ansible.errors import AnsibleError
from ansible.utils.display import Display
from ansible.utils import display as _display
from ansible.module_utils._internal import _plugin_info
display = Display()
if t.TYPE_CHECKING:
from . import loader as _t_loader
# Global so that all instances of a PluginLoader will share the caches
MODULE_CACHE = {} # type: dict[str, dict[str, types.ModuleType]]
PATH_CACHE = {} # type: dict[str, list[_t_loader.PluginPathContext] | None]
PLUGIN_PATH_CACHE = {} # type: dict[str, dict[str, dict[str, _t_loader.PluginPathContext]]]
def get_plugin_class(obj):
if isinstance(obj, str):
return obj.lower().replace('module', '')
else:
return obj.__class__.__name__.lower().replace('module', '')
class _ConfigurablePlugin(t.Protocol):
"""Protocol to provide type-safe access to config for plugin-related mixins."""
def get_option(self, option: str, hostvars: dict[str, object] | None = None) -> t.Any: ...
class _AnsiblePluginInfoMixin(_plugin_info.HasPluginInfo):
"""Mixin to provide type annotations and default values for existing PluginLoader-set load-time attrs."""
_original_path: str | None = None
_load_name: str | None = None
_redirected_names: list[str] | None = None
ansible_aliases: list[str] | None = None
ansible_name: str | None = None
@property
def plugin_type(self) -> str:
return self.__class__.__name__.lower().replace('module', '')
class AnsiblePlugin(_AnsiblePluginInfoMixin, _ConfigurablePlugin, metaclass=abc.ABCMeta):
# Set by plugin loader
_load_name: str
# allow extra passthrough parameters
allow_extras: bool = False
_extras_prefix: str | None = None
def __init__(self):
self._options = {}
self._defs = None
@property
def extras_prefix(self):
if not self._extras_prefix:
self._extras_prefix = self._load_name.split('.')[-1]
return self._extras_prefix
def matches_name(self, possible_names):
possible_fqcns = set()
for name in possible_names:
if '.' not in name:
possible_fqcns.add(f"ansible.builtin.{name}")
elif name.startswith("ansible.legacy."):
possible_fqcns.add(name.removeprefix("ansible.legacy."))
possible_fqcns.add(name)
return bool(possible_fqcns.intersection(set(self.ansible_aliases)))
def get_option_and_origin(self, option, hostvars=None):
try:
option_value, origin = C.config.get_config_value_and_origin(option, plugin_type=self.plugin_type, plugin_name=self._load_name, variables=hostvars)
except AnsibleError as e:
raise KeyError(str(e))
return option_value, origin
@functools.cached_property
def __plugin_info(self):
"""
Internal cached property to retrieve `PluginInfo` for this plugin instance.
Only for use by the `AnsiblePlugin` base class.
"""
return _plugin_info.get_plugin_info(self)
def get_option(self, option, hostvars=None):
if option not in self._options:
option_value, dummy = self.get_option_and_origin(option, hostvars=hostvars)
self.set_option(option, option_value)
return self._options.get(option)
def get_options(self, hostvars=None):
options = {}
for option in self.option_definitions.keys():
options[option] = self.get_option(option, hostvars=hostvars)
return options
def set_option(self, option, value):
self._options[option] = C.config.get_config_value(option, plugin_type=self.plugin_type, plugin_name=self._load_name, direct={option: value})
_display._report_config_warnings(self.__plugin_info)
def set_options(self, task_keys=None, var_options=None, direct=None):
"""
Sets the _options attribute with the configuration/keyword information for this plugin
:arg task_keys: Dict with playbook keywords that affect this option
:arg var_options: Dict with either 'connection variables'
:arg direct: Dict with 'direct assignment'
"""
self._options = C.config.get_plugin_options(self.plugin_type, self._load_name, keys=task_keys, variables=var_options, direct=direct)
# allow extras/wildcards from vars that are not directly consumed in configuration
# this is needed to support things like winrm that can have extended protocol options we don't directly handle
if self.allow_extras and var_options and '_extras' in var_options:
# these are largely unvalidated passthroughs, either plugin or underlying API will validate
self._options['_extras'] = var_options['_extras']
_display._report_config_warnings(self.__plugin_info)
def has_option(self, option):
if not self._options:
self.set_options()
return option in self._options
@property
def option_definitions(self):
if (not hasattr(self, "_defs")) or self._defs is None:
self._defs = C.config.get_configuration_definitions(plugin_type=self.plugin_type, name=self._load_name)
return self._defs
def _check_required(self):
# FIXME: standardize required check based on config
pass
def __repr__(self):
ansible_name = getattr(self, 'ansible_name', '(unknown)')
load_name = getattr(self, '_load_name', '(unknown)')
return f'{type(self).__name__}(plugin_type={self.plugin_type!r}, {ansible_name=!r}, {load_name=!r})'
class AnsibleJinja2Plugin(AnsiblePlugin, metaclass=abc.ABCMeta):
def __init__(self, function: t.Callable) -> None:
super(AnsibleJinja2Plugin, self).__init__()
self._function = function
# Declare support for markers. Plugins with `False` here will never be invoked with markers for top-level arguments.
self.accept_args_markers = getattr(self._function, 'accept_args_markers', False)
self.accept_lazy_markers = getattr(self._function, 'accept_lazy_markers', False)
@property
@abc.abstractmethod
def plugin_type(self) -> str:
...
def _no_options(self, *args, **kwargs) -> t.NoReturn:
raise NotImplementedError()
has_option = get_option = get_options = option_definitions = set_option = set_options = _no_options
@property
def j2_function(self) -> t.Callable:
return self._function
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