src/third_party/tlslite/tlslite/utils/datefuncs.py

   1 # Author: Trevor Perrin
   2 # See the LICENSE file for legal information regarding use of this file.
   3
   4 import os
   5
   6 #Functions for manipulating datetime objects
   7 #CCYY-MM-DDThh:mm:ssZ
   8 def parseDateClass(s):
   9     year, month, day = s.split("-")
  10     day, tail = day[:2], day[2:]
  11     hour, minute, second = tail[1:].split(":")
  12     second = second[:2]
  13     year, month, day = int(year), int(month), int(day)
  14     hour, minute, second = int(hour), int(minute), int(second)
  15     return createDateClass(year, month, day, hour, minute, second)
  16
  17
  18 if os.name != "java":
  19     from datetime import datetime, timedelta
  20
  21     #Helper functions for working with a date/time class
  22     def createDateClass(year, month, day, hour, minute, second):
  23         return datetime(year, month, day, hour, minute, second)
  24
  25     def printDateClass(d):
  26         #Split off fractional seconds, append 'Z'
  27         return d.isoformat().split(".")[0]+"Z"
  28
  29     def getNow():
  30         return datetime.utcnow()
  31
  32     def getHoursFromNow(hours):
  33         return datetime.utcnow() + timedelta(hours=hours)
  34
  35     def getMinutesFromNow(minutes):
  36         return datetime.utcnow() + timedelta(minutes=minutes)
  37
  38     def isDateClassExpired(d):
  39         return d < datetime.utcnow()
  40
  41     def isDateClassBefore(d1, d2):
  42         return d1 < d2
  43
  44 else:
  45     #Jython 2.1 is missing lots of python 2.3 stuff,
  46     #which we have to emulate here:
  47     import java
  48     import jarray
  49
  50     def createDateClass(year, month, day, hour, minute, second):
  51         c = java.util.Calendar.getInstance()
  52         c.setTimeZone(java.util.TimeZone.getTimeZone("UTC"))
  53         c.set(year, month-1, day, hour, minute, second)
  54         return c
  55
  56     def printDateClass(d):
  57         return "%04d-%02d-%02dT%02d:%02d:%02dZ" % \
  58         (d.get(d.YEAR), d.get(d.MONTH)+1, d.get(d.DATE), \
  59         d.get(d.HOUR_OF_DAY), d.get(d.MINUTE), d.get(d.SECOND))
  60
  61     def getNow():
  62         c = java.util.Calendar.getInstance()
  63         c.setTimeZone(java.util.TimeZone.getTimeZone("UTC"))
  64         c.get(c.HOUR) #force refresh?
  65         return c
  66
  67     def getHoursFromNow(hours):
  68         d = getNow()
  69         d.add(d.HOUR, hours)
  70         return d
  71
  72     def isDateClassExpired(d):
  73         n = getNow()
  74         return d.before(n)
  75
  76     def isDateClassBefore(d1, d2):
  77         return d1.before(d2)