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annotate roundup/cgi/timestamp.py @ 6681:ab2ed11c021e

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issue2551205: Add support for specifying valid origins for api: xmlrpc/rest We now have an allow list to filter the hosts allowed to do api requests. An element of this allow list must match the http ORIGIN header exactly or the rest/xmlrpc CORS request will result in an error. The tracker host is always allowed to do a request.
author John Rouillard <rouilj@ieee.org>
date Tue, 17 May 2022 17:18:51 -0400
parents 5ec3171580a6
children 07ce4e4110f5
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 '''Set of functions of adding/checking timestamp to be used to limit
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2 form submission for cgi actions.
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3 '''
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4
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5 import time, struct, binascii, base64
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6 from roundup.cgi.exceptions import FormError
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7 from roundup.i18n import _
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8 from roundup.anypy.strings import b2s, s2b
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9
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11 def pack_timestamp():
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12 return b2s(base64.b64encode(struct.pack("i", int(time.time()))).strip())
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13
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15 def unpack_timestamp(s):
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16 try:
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17 timestamp = struct.unpack("i", base64.b64decode(s2b(s)))[0]
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18 except (struct.error, binascii.Error, TypeError):
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19 raise FormError(_("Form is corrupted."))
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20 return timestamp
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21
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22
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23 class Timestamped:
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24 def timecheck(self, field, delay):
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25 try:
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26 created = unpack_timestamp(self.form[field].value)
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27 except KeyError:
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28 raise FormError(_("Form is corrupted, missing: %s." % field))
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29 if time.time() - created < delay:
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30 raise FormError(_("Responding to form too quickly."))
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31 return True
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