50 lines
1.8 KiB
Python
50 lines
1.8 KiB
Python
import random
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import string
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from wptserve.utils import isomorphic_encode
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import importlib
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client_hints_full_list = importlib.import_module("client-hints.resources.clienthintslist").client_hints_full_list
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def id_token():
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letters = string.ascii_lowercase
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return u''.join(random.choice(letters) for i in range(20))
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def main(request, response):
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client_hint_headers = client_hints_full_list()
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client_hints_curr = {i:request.headers.get(i) for i in client_hint_headers}
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token = request.GET.first(b"token", None)
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is_query = request.GET.first(b"query", None) is not None
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with request.server.stash.lock:
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stash = request.server.stash.take(token)
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if stash != None:
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(value, client_hints_prev) = stash
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count = int(value)
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else:
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count = 0
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client_hints_prev = {}
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if is_query:
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if count < 2:
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request.server.stash.put(token, (count, client_hints_curr))
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else:
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count = count + 1
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request.server.stash.put(token, (count, client_hints_curr))
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for header in client_hint_headers:
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if client_hints_curr[header] is not None:
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response.headers.set(header+b"-recieved", client_hints_curr[header])
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if (header in client_hints_prev) and (client_hints_prev[header] is not None):
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response.headers.set(header+b"-previous", client_hints_prev[header])
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if is_query:
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headers = [(b"Count", count)]
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content = u""
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return 200, headers, content
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else:
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unique_id = id_token()
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headers = [(b"Content-Type", b"text/html"),
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(b"Cache-Control", b"private, max-age=0, stale-while-revalidate=60"),
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(b"Unique-Id", isomorphic_encode(unique_id))]
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content = u"report('{}')".format(unique_id)
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return 200, headers, content
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