Sorry! Here it is again in text/plain this time...
(My mail client doesn't ask whether I want to send in text or HTML,
hence the slip. Maybe *I* should get a new one!)
---
I'm having problems using "CGI::Carp qw(fatalsToBrowser);" in modperl
scripts.
Below are three short scripts and their output under Apache/CGI and
Apache/modperl. All three of them produce (more or
less) useful output under Apache/CGI, but only the last one does under
Apache/modperl.
The first one calls die() itself. Under Apache/CGI the die() message
appears in the web browser (albeit preceded by a
spurious Content-Type line), but under Apache/modperl the message goes
to the error.log and a bizarre message appears in
the web browser consisting of some output from the script, followed by a
"200 OK" HTTP header, followed by a message
suggesting that all was not OK after all (all the same as if CGI::Carp
was not being used).
The second one has a syntax error. Under Apache/CGI a message about a
compilation error appears in the web browser (but not
the detail of the syntax error itself, which disappears completely - not
even going to error.log!); under Apache/modperl an
"Internal Server Error" message appears in the web browser (again just
like CGI::Carp was not being used) and (curiously)
the detail of the syntax error does now at least appear in error.log!
The third one attempts a division by zero and correctly says so in the
web browser under both Apache/CGI and
Apache/modperl.
Can anybody explain what's going on here???
The first script is closest to the problem I've really got. I'm using
DBI/DBD::mysql and I want SQL syntax errors (which I
keep making) to appear in the web browser instead of having to keep
opening the error.log. Running under Apache/CGI I get
useful messages like:
Software error:
DBD::mysql::st execute failed: You have an error in your SQL syntax near
'BINARY USER_NAME LIKE 'mk-%' LIMIT 10' at line 1
at d:/inetpub/cgi-bin/mysql.pl line 300.
but under Apache/modperl I just get useless garbage like the
error_die.pl below produces.
I'm running Perl 5.005_03 / Apache 1.3.6 / mod_perl 1.22 on NT 4.
error_die.pl
------------
use CGI::Carp qw(fatalsToBrowser);
$| = 1;
print "Content-Type: text/html\n\n";
print "I'm about to die() ...\n";
die "I'm dead.\n";
Apache/CGI:
I'm about to die() ... Content-type: text/html
Software error:
I'm dead.
For help, please send mail to the webmaster ([EMAIL PROTECTED]),
giving this error message and the time and date of
the error.
Apache/modperl:
I'm about to die() ... HTTP/1.1 200 OK Date: Tue, 18 Apr 2000 11:09:35
GMT Server: Apache/1.3.6 (Win32) mod_perl/1.22
Connection: close Content-Type: text/html
OK
The server encountered an internal error or misconfiguration and was
unable to complete your request.
Please contact the server administrator, [EMAIL PROTECTED] and
inform them of the time the error occurred, and
anything you might have done that may have caused the error.
More information about this error may be available in the server error
log.
error_syntax.pl
---------------
use CGI::Carp qw(fatalsToBrowser);
$| = 1;
print "Content-Type: text/html\n\n";
print "Syntax error at the end of this line ...\n"
print "blah blah blah.\n";
Apache/CGI:
Software error:
Execution of d:/inetpub/cgi-bin/error_syntax.pl aborted due to
compilation errors.
For help, please send mail to the webmaster ([EMAIL PROTECTED]),
giving this error message and the time and date of
the error.
Apache/modperl:
Internal Server Error
The server encountered an internal error or misconfiguration and was
unable to complete your request.
Please contact the server administrator, [EMAIL PROTECTED] and
inform them of the time the error occurred, and
anything you might have done that may have caused the error.
More information about this error may be available in the server error
log.
error_divide.pl
---------------
use CGI::Carp qw(fatalsToBrowser);
$| = 1;
print "Content-Type: text/html\n\n";
print "I'm about to divide by zero ...\n";
my $x = 1 / 0;
Apache/CGI:
Software error:
Illegal division by zero at d:/inetpub/cgi-bin/error_divide.pl line 5.
For help, please send mail to the webmaster ([EMAIL PROTECTED]),
giving this error message and the time and date of
the error.
Apache/modperl:
Software error:
Illegal division by zero at d:/inetpub/cgi-bin/error_divide.pl line 5.
For help, please send mail to the webmaster ([EMAIL PROTECTED]),
giving this error message and the time and date of
the error.
