ansible/lib/ansible/vars/unsafe_proxy.py
Toshio Kuratomi 4ed88512e4 Move uses of to_bytes, to_text, to_native to use the module_utils version (#17423)
We couldn't copy to_unicode, to_bytes, to_str into module_utils because
of licensing.  So once created it we had two sets of functions that did
the same things but had different implementations.  To remedy that, this
change removes the ansible.utils.unicode versions of those functions.
2016-09-06 22:54:17 -07:00

123 lines
4.6 KiB
Python

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# Original Python Recipe for Proxy:
# http://code.activestate.com/recipes/496741-object-proxying/
# Author: Tomer Filiba
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import json
from ansible.compat.six import string_types, text_type
from ansible.module_utils._text import to_text
__all__ = ['UnsafeProxy', 'AnsibleUnsafe', 'AnsibleJSONUnsafeEncoder', 'AnsibleJSONUnsafeDecoder', 'wrap_var']
class AnsibleUnsafe(object):
__UNSAFE__ = True
class AnsibleUnsafeText(text_type, AnsibleUnsafe):
pass
class UnsafeProxy(object):
def __new__(cls, obj, *args, **kwargs):
# In our usage we should only receive unicode strings.
# This conditional and conversion exists to sanity check the values
# we're given but we may want to take it out for testing and sanitize
# our input instead.
if isinstance(obj, string_types):
obj = to_text(obj, errors='surrogate_or_strict')
return AnsibleUnsafeText(obj)
return obj
class AnsibleJSONUnsafeEncoder(json.JSONEncoder):
def encode(self, obj):
if isinstance(obj, AnsibleUnsafe):
return super(AnsibleJSONUnsafeEncoder, self).encode(dict(__ansible_unsafe=True, value=unicode(obj)))
else:
return super(AnsibleJSONUnsafeEncoder, self).encode(obj)
class AnsibleJSONUnsafeDecoder(json.JSONDecoder):
def decode(self, obj):
value = super(AnsibleJSONUnsafeDecoder, self).decode(obj)
if isinstance(value, dict) and '__ansible_unsafe' in value:
return UnsafeProxy(value.get('value', ''))
else:
return value
def _wrap_dict(v):
for k in v.keys():
if v[k] is not None:
v[k] = wrap_var(v[k])
return v
def _wrap_list(v):
for idx, item in enumerate(v):
if item is not None:
v[idx] = wrap_var(item)
return v
def wrap_var(v):
if isinstance(v, dict):
v = _wrap_dict(v)
elif isinstance(v, list):
v = _wrap_list(v)
else:
if v is not None and not isinstance(v, AnsibleUnsafe):
v = UnsafeProxy(v)
return v