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def main(request, response):
token = request.GET.first("token", None)
if "querystate" in request.GET:
from json import JSONEncoder
response.headers.set("Content-Type", "text/plain")
return JSONEncoder().encode(request.server.stash.take(token))
content = request.GET.first("content", None)
tag = request.GET.first("tag", None)
date = request.GET.first("date", None)
expires = request.GET.first("expires", None)
vary = request.GET.first("vary", None)
cc = request.GET.first("cache_control", None)
redirect = request.GET.first("redirect", None)
inm = request.headers.get("If-None-Match", None)
ims = request.headers.get("If-Modified-Since", None)
pragma = request.headers.get("Pragma", None)
cache_control = request.headers.get("Cache-Control", None)
ignore = "ignore" in request.GET
if tag:
tag = '"%s"' % tag
server_state = request.server.stash.take(token)
if not server_state:
server_state = []
state = dict()
if not ignore:
if inm:
state["If-None-Match"] = inm
if ims:
state["If-Modified-Since"] = ims
if pragma:
state["Pragma"] = pragma
if cache_control:
state["Cache-Control"] = cache_control
server_state.append(state)
request.server.stash.put(token, server_state)
if tag:
response.headers.set("ETag", '%s' % tag)
elif date:
response.headers.set("Last-Modified", date)
if expires:
response.headers.set("Expires", expires)
if vary:
response.headers.set("Vary", vary)
if cc:
response.headers.set("Cache-Control", cc)
# The only-if-cached redirect tests wants CORS to be okay, the other tests
# are all same-origin anyways and don't care.
response.headers.set("Access-Control-Allow-Origin", "*");
if redirect:
response.headers.set("Location", redirect);
response.status = (302, "Redirect")
return ""
elif ((inm is not None and inm == tag) or
(ims is not None and ims == date)):
response.status = (304, "Not Modified")
return ""
else:
response.status = (200, "OK")
response.headers.set("Content-Type", "text/plain")
return content
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