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    		• cgigetsession()
    		• cgitestparam()
    		• cgitestsession()
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    		• waitsema()
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    Topic complex CGI functions
    Function cgitestsession()
    Short Checks a session id for validity
    Syntax CGITESTSESSION(SessionID : STRING) : INTEGER
    Parameter SessionID : a session id returned by CGIGETSESSION, which can be arbitrarily extended.
    Return 0 : session not valid because not matching corresponding IP address

    else: 1+number of seconds, that have gone since the session id had been established
    See also:
    cgigetsession()
    Description A session id should be tested if it is valid espacially at sensible transmission on signals.
    CGITESTSESSION does not provide 100 percent protection against vicious attacks, but suspends the huge number of "accidental" accesses to session applied data effeciently.

    Example 1: CGITestSession



    VAR SessionID : STRING
VAR SessionTest : INTEGER
...
  SessionID:=CGIGetParam("sessionid")
  SessionTest:=CGITestSession(SessionID)
  IF SessionTest=0 THEN
     // illegal session because of different IP numbers
  ELSIF SessionTest>3600 THEN
     // TimeOut because this session was valid only for one hour
  ELSE
     // here it is all right
  END


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       Last changed: 21.10.2004
    {Fehler für :execmacro{execmacro="sessionspy"}