Chapter 5 Advanced Expressions: Working with Dates, Times, and Numbers 105
certificate.
VALID_NOT_AFTER.
RELATIVE_NOW
Calculates the number of seconds between the current
system time and the specified time and returns an
integer. If the time is in the past, the integer is negative;
if it is in the future, the integer is positive.
certificate.
VALID_NOT_AFTER.SECONDS Extracts the last second that the certificate is valid and
returns that value as an integer from 0 to 59.
certificate.
VALID_NOT_AFTER.WEEKDAY Extracts the last weekday that the certificate is valid.
Returns a number between 0 (Sunday) and 6 (Saturday)
to give the weekday in the time value.
certificate.
VALID_NOT_AFTER.
WITHIN(time1, time2)
Returns a Boolean TRUE if the time lies within all the
ranges defined by the elements in time1, time2.
If you omit an element of time from time1, it is assumed
to have the lowest value in its range. If you omit an
element from time2, it is assumed to have the highest
value of its range. If you specify a year in time1, you
must specify it in time2.
The ranges for elements of time are as follows: month
1-12, day 1-31, weekday 0-6, hour 0-23, minutes 0-59
and seconds 0-59. For the result to be TRUE, each
element in the time must exist in the corresponding
range that you specify in time1, time2.
For example, if time is GMT 2005 May 10 10h 15m
30s, and it is the second Tuesday of the month, you can
specify the following (evaluation results are in
parentheses):
•. . .within(GMT 2004, GMT 2006)
(TRUE)
•. . .within(GMT 2004 Jan, GMT 2006
Mar) (FALSE, May is not in the range of January
to March.)
•. . .within(GMT Feb, GMT) (TRUE, May
is in the range for February to December)
•. . .within(GMT Sun_1, GMT Sun_3)
(TRUE, the second Tuesday lies within the range of
the first Sunday through the third Sunday)
•. . .within(GMT 2005 May 1 10h, GMT
May 2005 1 17h) (TRUE)
•. . .within(LOCAL 2005 May 1, LOCAL
May 2005 1) (TRUE or FALSE, depending on
the NetScaler system time zone)
certificate.
VALID_NOT_AFTER.YEAR Extracts the last year that the certificate is valid and
returns a four-digit integer.
certificate.
VALID_NOT_BEFORE Returns the date that the client certificate becomes
valid.
The return format is the number of seconds since GMT
January 1, 1970 (0 hours, 0 minutes, 0 seconds).
Operations on Certificate (client.ssl.client_cert) Dates and Times
SSL Certificate Operation Description