Name: REQUIRE-SESSION
Section:
Session Operators
Synopsis:
<require-session [MISSING=MISSING-CODE] [TIMEOUT=TIMEOUT-CODE]>
Description:
<set-var anonymous="Anonymous Session">
<require-session
missing="<create-session anonymous allow-multiple>
<redirect <get-var SID>/<get-var mhtml::current-doc>"
timeout=<redirect /timed-out.mhtml>>
In the real world, additional care should be taken when returning new
URLs. The variable MHTML::COOKIE-COMPATIBLE is
true
when the attached browser/server combination is
capable of handling HTTP Cookies. In this case, it is preferable to
use the HTTP Cookie handling facilities instead of returning the
session ID in the URL. Here is how one might write the above example
to handle both cases:
<set-var anonymous="Anonymous Session" session-timeout=60>
<require-session
missing = <prog
<create-session anonymous allow-multiple>
<set-session-timeout <get-var session-timeout>>
<when <not <get-var mhtml::cookie-compatible>>>
<redirect <concat
<get-var mhtml::http-to-host>/
<get-var SID><get-var mhtml::relative-prefix>/
<get-var mhtml::current-doc>>>
</when>>
timeout = <prog
<set-var SID="">
<if <get-var mhtml::cookie-compatible>
<replace-page
<get-var mhtml::relative-prefix>/timedout.mhtml>
<redirect
<get-var mhtml::url-to-dir-sans-sid>/timedout.mhtml>>>>
For more detail on the built-in variables provided by the Meta-HTML
Server and CGI Engine, see Server Variables.
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The
META-HTML
Reference Manual V1.4
Copyright © 1995, 1996,
Brian J. Fox,
1996, 1997 Universal Access Inc.
Found a bug? Send mail to
bug-manual@metahtml.com