60 lines
1.7 KiB
Python
60 lines
1.7 KiB
Python
import contextlib
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import socket
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import threading
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import jwt
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class Thread(threading.Thread):
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"Variant of threading.Thread that re-raises any exceptions when joining the thread"
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def __init__(self, *args, **kwargs):
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self._exception = None
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super(Thread, self).__init__(*args, **kwargs)
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def run(self):
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try:
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super(Thread, self).run()
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except Exception as e:
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self._exception = e
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def join(self):
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super(Thread, self).join()
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if self._exception is not None:
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raise self._exception
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def freeport():
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"Find a free port on localhost."
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with contextlib.closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as s:
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s.bind(("", 0))
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s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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return s.getsockname()[1]
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def authheader(token):
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"Bearer token HTTP authorization header."
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return {"Authorization": f"Bearer {token}"}
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def jwtauthheader(claim, secret):
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"Authorization header with signed JWT."
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return authheader(jwt.encode(claim, secret))
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def parse_server_timings_header(header):
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"""Parse the Server-Timing header into a dict of metric names to values.
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The header is a comma-separated list of metrics, each of which has a name
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and a duration. The duration may be followed by a semicolon and a list of
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parameters, but we ignore those.
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See https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Server-Timing
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"""
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timings = {}
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for timing in header.split(","):
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name, duration_text, *_ = timing.split(";")
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_, duration = duration_text.split("=")
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timings[name.strip()] = float(duration)
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return timings
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