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Writing CGI Scripts in REXX (Web Techniques, May 1996)


Writing CGI Scripts in REXX, Listing 10 (Web Techniques, May 1996)

Web Techniques Magazine

May 1996

Volume 1, Issue 2





Writing CGI Scripts in REXX




Listing Ten



/* CgiError

# Prints out an error message which which containes appropriate headers,

# markup, etcetera.

# Parameters:

#  If no parameters, gives a generic error message

#  Otherwise, the first parameter will be the title and the rest will 

#  be given as the body

*/

CgiError: PROCEDURE

   PARSE ARG Title, Body

   IF Title='' THEN Title='Error: script' MyURL() 'encountered fatal error.'

   SAY 'Content-type: text/html'; SAY ''

   SAY '<html><head><title>'Title'</title></head>'

   SAY '<body><h1>'Title'</h1>'

   IF Body/='' THEN SAY Body

   SAY '</body></html>'

RETURN ''

/* CgiDie

   Identical to CgiError, but also quits with the passed error message.

*/

CgiDie: PROCEDURE

  PARSE ARG Title, Body

  Fail=CgiError(Title, Body)

  EXIT 

/* MyURL

   Returns a URL to the script

*/

MyURL: PROCEDURE

   IF GETENV('SERVER_PORT')/='80' THEN Port=':'GETENV('SERVER_PORT')

   ELSE                                Port=''

   RETURN 'http://'GETENV('SERVER_NAME')||Port||GETENV('SCRIPT_NAME')









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