/usr/lib/python3/dist-packages/coreapi/document.py is in python3-coreapi 2.3.3-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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from __future__ import unicode_literals
from collections import OrderedDict, namedtuple
from coreapi.compat import string_types
import itypes
def _to_immutable(value):
if isinstance(value, dict):
return Object(value)
elif isinstance(value, list):
return Array(value)
return value
def _repr(node):
from coreapi.codecs.python import PythonCodec
return PythonCodec().encode(node)
def _str(node):
from coreapi.codecs.display import DisplayCodec
return DisplayCodec().encode(node)
def _key_sorting(item):
"""
Document and Object sorting.
Regular attributes sorted alphabetically.
Links are sorted based on their URL and action.
"""
key, value = item
if isinstance(value, Link):
action_priority = {
'get': 0,
'post': 1,
'put': 2,
'patch': 3,
'delete': 4
}.get(value.action, 5)
return (1, (value.url, action_priority))
return (0, key)
# The field class, as used by Link objects:
# NOTE: 'type', 'description' and 'example' are now deprecated,
# in favor of 'schema'.
Field = namedtuple('Field', ['name', 'required', 'location', 'schema', 'description', 'type', 'example'])
Field.__new__.__defaults__ = (False, '', None, None, None, None)
# The Core API primitives:
class Document(itypes.Dict):
"""
The Core API document type.
Expresses the data that the client may access,
and the actions that the client may perform.
"""
def __init__(self, url=None, title=None, description=None, media_type=None, content=None):
content = {} if (content is None) else content
if url is not None and not isinstance(url, string_types):
raise TypeError("'url' must be a string.")
if title is not None and not isinstance(title, string_types):
raise TypeError("'title' must be a string.")
if description is not None and not isinstance(description, string_types):
raise TypeError("'description' must be a string.")
if media_type is not None and not isinstance(media_type, string_types):
raise TypeError("'media_type' must be a string.")
if not isinstance(content, dict):
raise TypeError("'content' must be a dict.")
if any([not isinstance(key, string_types) for key in content.keys()]):
raise TypeError('content keys must be strings.')
self._url = '' if (url is None) else url
self._title = '' if (title is None) else title
self._description = '' if (description is None) else description
self._media_type = '' if (media_type is None) else media_type
self._data = {key: _to_immutable(value) for key, value in content.items()}
def clone(self, data):
return self.__class__(self.url, self.title, self.description, self.media_type, data)
def __iter__(self):
items = sorted(self._data.items(), key=_key_sorting)
return iter([key for key, value in items])
def __repr__(self):
return _repr(self)
def __str__(self):
return _str(self)
def __eq__(self, other):
if self.__class__ == other.__class__:
return (
self.url == other.url and
self.title == other.title and
self._data == other._data
)
return super(Document, self).__eq__(other)
@property
def url(self):
return self._url
@property
def title(self):
return self._title
@property
def description(self):
return self._description
@property
def media_type(self):
return self._media_type
@property
def data(self):
return OrderedDict([
(key, value) for key, value in self.items()
if not isinstance(value, Link)
])
@property
def links(self):
return OrderedDict([
(key, value) for key, value in self.items()
if isinstance(value, Link)
])
class Object(itypes.Dict):
"""
An immutable mapping of strings to values.
"""
def __init__(self, *args, **kwargs):
data = dict(*args, **kwargs)
if any([not isinstance(key, string_types) for key in data.keys()]):
raise TypeError('Object keys must be strings.')
self._data = {key: _to_immutable(value) for key, value in data.items()}
def __iter__(self):
items = sorted(self._data.items(), key=_key_sorting)
return iter([key for key, value in items])
def __repr__(self):
return _repr(self)
def __str__(self):
return _str(self)
@property
def data(self):
return OrderedDict([
(key, value) for key, value in self.items()
if not isinstance(value, Link)
])
@property
def links(self):
return OrderedDict([
(key, value) for key, value in self.items()
if isinstance(value, Link)
])
class Array(itypes.List):
"""
An immutable list type container.
"""
def __init__(self, *args):
self._data = [_to_immutable(value) for value in list(*args)]
def __repr__(self):
return _repr(self)
def __str__(self):
return _str(self)
class Link(itypes.Object):
"""
Links represent the actions that a client may perform.
"""
def __init__(self, url=None, action=None, encoding=None, transform=None, title=None, description=None, fields=None):
if (url is not None) and (not isinstance(url, string_types)):
raise TypeError("Argument 'url' must be a string.")
if (action is not None) and (not isinstance(action, string_types)):
raise TypeError("Argument 'action' must be a string.")
if (encoding is not None) and (not isinstance(encoding, string_types)):
raise TypeError("Argument 'encoding' must be a string.")
if (transform is not None) and (not isinstance(transform, string_types)):
raise TypeError("Argument 'transform' must be a string.")
if (title is not None) and (not isinstance(title, string_types)):
raise TypeError("Argument 'title' must be a string.")
if (description is not None) and (not isinstance(description, string_types)):
raise TypeError("Argument 'description' must be a string.")
if (fields is not None) and (not isinstance(fields, (list, tuple))):
raise TypeError("Argument 'fields' must be a list.")
if (fields is not None) and any([
not (isinstance(item, string_types) or isinstance(item, Field))
for item in fields
]):
raise TypeError("Argument 'fields' must be a list of strings or fields.")
self._url = '' if (url is None) else url
self._action = '' if (action is None) else action
self._encoding = '' if (encoding is None) else encoding
self._transform = '' if (transform is None) else transform
self._title = '' if (title is None) else title
self._description = '' if (description is None) else description
self._fields = () if (fields is None) else tuple([
item if isinstance(item, Field) else Field(item, required=False, location='')
for item in fields
])
@property
def url(self):
return self._url
@property
def action(self):
return self._action
@property
def encoding(self):
return self._encoding
@property
def transform(self):
return self._transform
@property
def title(self):
return self._title
@property
def description(self):
return self._description
@property
def fields(self):
return self._fields
def __eq__(self, other):
return (
isinstance(other, Link) and
self.url == other.url and
self.action == other.action and
self.encoding == other.encoding and
self.transform == other.transform and
self.description == other.description and
sorted(self.fields, key=lambda f: f.name) == sorted(other.fields, key=lambda f: f.name)
)
def __repr__(self):
return _repr(self)
def __str__(self):
return _str(self)
class Error(itypes.Dict):
def __init__(self, title=None, content=None):
data = {} if (content is None) else content
if title is not None and not isinstance(title, string_types):
raise TypeError("'title' must be a string.")
if content is not None and not isinstance(content, dict):
raise TypeError("'content' must be a dict.")
if any([not isinstance(key, string_types) for key in data.keys()]):
raise TypeError('content keys must be strings.')
self._title = '' if (title is None) else title
self._data = {key: _to_immutable(value) for key, value in data.items()}
def __iter__(self):
items = sorted(self._data.items(), key=_key_sorting)
return iter([key for key, value in items])
def __repr__(self):
return _repr(self)
def __str__(self):
return _str(self)
def __eq__(self, other):
return (
isinstance(other, Error) and
self.title == other.title and
self._data == other._data
)
@property
def title(self):
return self._title
def get_messages(self):
messages = []
for value in self.values():
if isinstance(value, Array):
messages += [
item for item in value if isinstance(item, string_types)
]
return messages
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