mirror of
https://github.com/moparisthebest/SickRage
synced 2024-11-14 05:15:12 -05:00
98 lines
3.2 KiB
Python
98 lines
3.2 KiB
Python
import io
|
|
|
|
from requests.structures import CaseInsensitiveDict
|
|
|
|
from .compat import HTTPResponse, pickle
|
|
|
|
|
|
class Serializer(object):
|
|
def dumps(self, request, response, body=None):
|
|
response_headers = CaseInsensitiveDict(response.headers)
|
|
|
|
if body is None:
|
|
# TODO: Figure out a way to handle this which doesn't break
|
|
# streaming
|
|
body = response.read(decode_content=False)
|
|
response._fp = io.BytesIO(body)
|
|
|
|
data = {
|
|
"response": {
|
|
"body": body,
|
|
"headers": response.headers,
|
|
"status": response.status,
|
|
"version": response.version,
|
|
"reason": response.reason,
|
|
"strict": response.strict,
|
|
"decode_content": response.decode_content,
|
|
},
|
|
}
|
|
|
|
# Construct our vary headers
|
|
data["vary"] = {}
|
|
if "vary" in response_headers:
|
|
varied_headers = response_headers['vary'].split(',')
|
|
for header in varied_headers:
|
|
header = header.strip()
|
|
data["vary"][header] = request.headers.get(header, None)
|
|
|
|
return b"cc=1," + pickle.dumps(data, pickle.HIGHEST_PROTOCOL)
|
|
|
|
def loads(self, request, data):
|
|
# Short circuit if we've been given an empty set of data
|
|
if not data:
|
|
return
|
|
|
|
# Determine what version of the serializer the data was serialized
|
|
# with
|
|
try:
|
|
ver, data = data.split(b",", 1)
|
|
except ValueError:
|
|
ver = b"cc=0"
|
|
|
|
# Make sure that our "ver" is actually a version and isn't a false
|
|
# positive from a , being in the data stream.
|
|
if ver[:3] != b"cc=":
|
|
data = ver + data
|
|
ver = b"cc=0"
|
|
|
|
# Get the version number out of the cc=N
|
|
ver = ver.split(b"=", 1)[-1].decode("ascii")
|
|
|
|
# Dispatch to the actual load method for the given version
|
|
try:
|
|
return getattr(self, "_loads_v{0}".format(ver))(request, data)
|
|
except AttributeError:
|
|
# This is a version we don't have a loads function for, so we'll
|
|
# just treat it as a miss and return None
|
|
return
|
|
|
|
def _loads_v0(self, request, data):
|
|
# The original legacy cache data. This doesn't contain enough
|
|
# information to construct everything we need, so we'll treat this as
|
|
# a miss.
|
|
return
|
|
|
|
def _loads_v1(self, request, data):
|
|
try:
|
|
cached = pickle.loads(data)
|
|
except ValueError:
|
|
return
|
|
|
|
# Special case the '*' Vary value as it means we cannot actually
|
|
# determine if the cached response is suitable for this request.
|
|
if "*" in cached.get("vary", {}):
|
|
return
|
|
|
|
# Ensure that the Vary headers for the cached response match our
|
|
# request
|
|
for header, value in cached.get("vary", {}).items():
|
|
if request.headers.get(header, None) != value:
|
|
return
|
|
|
|
body = io.BytesIO(cached["response"].pop("body"))
|
|
return HTTPResponse(
|
|
body=body,
|
|
preload_content=False,
|
|
**cached["response"]
|
|
)
|