Re: more apache/perl problems, "premature end of script"
welcome to the club, you've been initiated.
On Mon, Nov 27, 2000 at 10:34:40AM -0600, Herbert Ho wrote:
> i downloaded cgi-lib.pl and placed it in the same directory as my
> script. (from cgi-lib.berkeley.edu) it runs fine on the cmdline (both
> my box and my university's server)
> the error i get in /var/log/apache/error.log is (without the time
> Premature end of script headers: /home/herb/public_html/init/login.pl
> what changes have to be made to a stock apache config on potato for
> cgi/perl to work in the user public_html directories?
apache, when it runs a process that generates the stuff that'll
be sent out to a client's browser, checks the text for
completeness. this includes all the header fields, such as
date: 27 nov 2000
try this, now:
telnet localhost 80 ^M
GET / HTTP/1.1 ^M
<localhost> is whatever host your server's running on;
the ^M merely denotes end-of-line/enter on your part.
here's what you'll get back:
HTTP/1.1 200 OK
that first line is the STATUS for the whole request,
which comes even before the header:value fields.
so try this in your script:
print "HTTP/1.1 200 OK\nContent-Type: text/html\n\n";
print "<b>hello world</b><p>it worked!";
so what you're seeing is APACHE noticing that you
didn't specify a HTTP STATUS CODE.
from the perl.apache.org/guide/ website--
If you take a basic CGI script like this:
print "Content-type: text/plain\r\n\r\n";
print "Hello world";
it wouldn't work, because the HTTP header will not be sent
out. By default, mod_perl does not send any headers itself.
You may wish to change this by adding
in the Apache::Registry <Location> section of your
configuration. Now, the response line and common headers
will be sent as they are by mod_cgi. Just as with mod_cgi,
PerlSendHeader will not send the MIME type and a terminating
double newline. Your script must send that itself
the modperl guide (perl.apache.org/guide) offers a wealth of
info, once you know what you're looking for... :)
> the changes i've made so far:
> 1) in access.conf (adding ExecCGI to the Options directive in the
> DirectoryMatch directive for the public_html directories)
> 2) in srm.conf (adding AddHandler cgi-script .pl .cgi)
> ## my script works in /usr/lib/cgi-bin/ but not in the public_html
> directories. i've tried copying the Directory directive for
> /usr/lib/cgi-bin word for word to the public_html directive w/ no
# something along the lines of...
LoadModule userdir_module /usr/lib/apache/1.3/mod_userdir.so
UserDir disabled root
somewhere in your config, then.
> thanks for everyone's help so far. i'm gonna get this to
> work...somehow. =)
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