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4024


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
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     1 import time, struct, base64


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
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     2 from roundup.cgi.actions import RegisterAction


c2d0d3e9099d
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Stefan Seefeld <stefan@users.sourceforge.net>
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     3 from roundup.cgi.exceptions import *


c2d0d3e9099d
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Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
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     4 


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
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     5 def timestamp():


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
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     6     return base64.encodestring(struct.pack("i", time.time())).strip()


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
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changeset


     7 


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
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     8 def unpack_timestamp(s):


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
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     9     return struct.unpack("i",base64.decodestring(s))[0]


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
diff
changeset


    10 


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
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    11 class Timestamped:


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
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    12     def check(self):


c2d0d3e9099d
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Stefan Seefeld <stefan@users.sourceforge.net>
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    13         try:


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
diff
changeset


    14             created = unpack_timestamp(self.form['opaque'].value)


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
diff
changeset


    15         except KeyError:


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
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    16             raise FormError, "somebody tampered with the form"


c2d0d3e9099d
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Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
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    17         if time.time() - created < 4:


c2d0d3e9099d
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Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
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    18             raise FormError, "responding to the form too quickly"


c2d0d3e9099d
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Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
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    19         return True


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
diff
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    20 


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
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    21 class TimestampedRegister(Timestamped, RegisterAction):


c2d0d3e9099d
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Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
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    22     def permission(self):


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
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    23         self.check()


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
diff
changeset


    24         RegisterAction.permission(self)


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
diff
changeset


    25 


c2d0d3e9099d
svn repository setup

Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
diff
changeset


    26 def init(instance):


c2d0d3e9099d
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Stefan Seefeld <stefan@users.sourceforge.net>
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    27     instance.registerUtil('timestamp', timestamp)


c2d0d3e9099d
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Stefan Seefeld <stefan@users.sourceforge.net>
parents: 
diff
changeset


    28     instance.registerAction('register', TimestampedRegister)
author	Stefan Seefeld <stefan@users.sourceforge.net>
date	Fri, 06 Feb 2009 13:16:31 +0000
parents
children	35ea9b1efc14
rev	line source
4024 c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	1 import time, struct, base64
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	2 from roundup.cgi.actions import RegisterAction
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	3 from roundup.cgi.exceptions import *
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	4
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	5 def timestamp():
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	6 return base64.encodestring(struct.pack("i", time.time())).strip()
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	7
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	8 def unpack_timestamp(s):
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	9 return struct.unpack("i",base64.decodestring(s))[0]
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	10
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	11 class Timestamped:
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	12 def check(self):
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	13 try:
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	14 created = unpack_timestamp(self.form['opaque'].value)
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	15 except KeyError:
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	16 raise FormError, "somebody tampered with the form"
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	17 if time.time() - created < 4:
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	18 raise FormError, "responding to the form too quickly"
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	19 return True
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	20
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	21 class TimestampedRegister(Timestamped, RegisterAction):
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	22 def permission(self):
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	23 self.check()
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	24 RegisterAction.permission(self)
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	25
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	26 def init(instance):
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	27 instance.registerUtil('timestamp', timestamp)
c2d0d3e9099d svn repository setup Stefan Seefeld <stefan@users.sourceforge.net> parents: diff changeset	28 instance.registerAction('register', TimestampedRegister)