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"""Classes to wrap cached response objects"""
from logging import getLogger
from attr import define, field, fields_dict
from requests import PreparedRequest
from requests.cookies import RequestsCookieJar
from requests.structures import CaseInsensitiveDict
from ..cache_keys import encode
logger = getLogger(__name__)
@define(auto_attribs=False)
class CachedRequest:
"""A serializable dataclass that emulates :py:class:`requests.PreparedResponse`"""
body: bytes = field(default=None, converter=encode)
cookies: RequestsCookieJar = field(factory=RequestsCookieJar)
headers: CaseInsensitiveDict = field(factory=CaseInsensitiveDict)
method: str = field(default=None)
url: str = field(default=None)
@classmethod
def from_request(cls, original_request: PreparedRequest) -> 'CachedRequest':
"""Create a CachedRequest based on an original request object"""
kwargs = {k: getattr(original_request, k, None) for k in fields_dict(cls).keys()}
kwargs['cookies'] = getattr(original_request, '_cookies', None)
return cls(**kwargs)
def prepare(self) -> PreparedRequest:
"""Convert the CachedRequest back into a PreparedRequest"""
prepared_request = PreparedRequest()
prepared_request.prepare(
cookies=self.cookies,
data=self.body,
headers=self.headers,
method=self.method,
url=self.url,
)
return prepared_request
@property
def _cookies(self):
"""For compatibility with PreparedRequest, which has an attribute named '_cookies', and a
keyword argument named 'cookies'.
"""
return self.cookies
def __str__(self):
return f'{self.method} {self.url}'
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