On September 4, 2002 at 22:13, Gunnar Hjalmarsson wrote:
You may want to have a test operation for you CGI program that checks
that things will work properly. For example, the program blindly does:
require 'mhamain.pl';
...
In general, I
would wrap the main block for the CGI program in an eval block so
any die()'s are caught.
Principally I agree, but an easier way to achieve the same thing is to
explicitly add a few die statements and:
use CGI::Carp 'fatalsToBrowser';
I wrote the script for my own use, but since I mention it on this list
from time to time, I guess I should clean up the code, including
preventing "Internal Server Error" messages on the screen...
Using the blanket "use CGI::Carp 'fatalsToBrowser';" may not be
desirable since it could reveal system and/or configuration information
you may not want to be exposed if the CGI program can be accessed
without restriction.
An alternative is to have your own log file. Then you can examine
it via ftp.
You can do your own log file by wrapping that main code block in an
eval to capture any die messages and/or register __DIE__ and __WARN__
handlers (which is what CGI::Carp does) to send the messages to your
log file. You may also want to open STDERR to the log file for cases
where output is send directly to STDERR. I'd test this first to see
if closing STDERR that the web server provides may cause some problems
with the web server (which it should not, but you never know).
--ewh
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