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annotate roundup/cgi/timestamp.py @ 8264:09e8d1a4c796

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docs: clarify wording, fix index, add superseder link Make superseder, messages etc. properties index entries point to the right place. Link to description of using Superseder in the original overview. fix bad wording on boolean properties.
author John Rouillard <rouilj@ieee.org>
date Wed, 08 Jan 2025 11:39:54 -0500
parents 216662fbaaee
children
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 base64
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6 import binascii
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7 import struct
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8 import time
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9
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10 from roundup.cgi.exceptions import FormError
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11 from roundup.i18n import _
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12 from roundup.anypy.strings import b2s, s2b
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15 def pack_timestamp():
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16 return b2s(base64.b64encode(struct.pack("i", int(time.time()))).strip())
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17
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18
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19 def unpack_timestamp(s):
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20 try:
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21 timestamp = struct.unpack("i", base64.b64decode(s2b(s)))[0]
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22 except (struct.error, binascii.Error, TypeError):
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23 raise FormError(_("Form is corrupted."))
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24 return timestamp
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25
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26
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27 class Timestamped:
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28 def timecheck(self, field, delay):
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29 try:
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30 created = unpack_timestamp(self.form[field].value)
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31 except KeyError:
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32 raise FormError(_("Form is corrupted, missing: %s.") % field)
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33 if time.time() - created < delay:
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34 raise FormError(_("Responding to form too quickly."))
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35 return True
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