On Apache/2.0.61 (Unix) PHP/4.4.7 mod_ssl/2.0.61 OpenSSL/0.9.7e mod_fastcgi/2.4.2 DAV/2 SVN/1.4.2
Under GNU General Public License
2009-01-06 12:47 @38.103.63.57 Crawled by CCBot/1.0 (+http://www.commoncrawl.org/bot.html)
Apache::Registry(3pm) User Contributed Perl Documentation Apache::Registry(3pm)
NAME
Apache::Registry - Run unaltered CGI scrips under mod_perl
SYNOPSIS
#in httpd.conf
Alias /perl/ /perl/apache/scripts/ #optional
PerlModule Apache::Registry
<Location /perl>
SetHandler perl-script
PerlHandler Apache::Registry
Options ExecCGI
</Location>
DESCRIPTION
URIs in the form of "http://www.host.com/perl/file.pl" will be compiled as the body of a
perl subroutine and executed. Each server process or 'child' will compile the subroutine
once and store it in memory. It will recompile it whenever the file is updated on disk.
Think of it as an object oriented server with each script implementing a class loaded at
runtime.
The file looks much like a "normal" script, but it is compiled or 'evaled' into a subrou-
tine.
Here's an example:
my $r = Apache->request;
$r->content_type("text/html");
$r->send_http_header;
$r->print("Hi There!");
This module emulates the CGI environment, allowing programmers to write scripts that run
under CGI or mod_perl without change. Existing CGI scripts may require some changes, sim-
ply because a CGI script has a very short lifetime of one HTTP request, allowing you to
get away with "quick and dirty" scripting. Using mod_perl and Apache::Registry requires
you to be more careful, but it also gives new meaning to the word "quick"!
Be sure to read all mod_perl related documentation for more details, including instruc-
tions for setting up an environment that looks exactly like CGI:
print "Content-type: text/html\n\n";
print "Hi There!";
Note that each httpd process or "child" must compile each script once, so the first
request to one server may seem slow, but each request there after will be faster. If your
scripts are large and/or make use of many Perl modules, this difference should be notice-
able to the human eye.
SECURITY
Apache::Registry::handler will preform the same checks as mod_cgi before running the
script.
ENVIRONMENT
The Apache function `exit' overrides the Perl core built-in function.
The environment variable GATEWAY_INTERFACE is set to "CGI-Perl/1.1".
COMMANDLINE SWITCHES IN FIRST LINE
Normally when a Perl script is run from the command line or under CGI, arguments on the
`#!' line are passed to the perl interpreter for processing.
Apache::Registry currently only honors the -w switch and will turn on warnings using the
$^W global variable. Another common switch used with CGI scripts is -T to turn on taint
checking. This can only be enabled when the server starts with the configuration direc-
tive:
PerlTaintCheck On
However, if taint checking is not enabled, but the -T switch is seen, Apache::Registry
will write a warning to the error_log.
DEBUGGING
You may set the debug level with the $Apache::Registry::Debug bitmask
1 => log recompile in errorlog
2 => Apache::Debug::dump in case of $@
4 => trace pedantically
CAVEATS
Apache::Registry makes things look just the CGI environment, however, you must understand
that this *is not CGI*. Each httpd child will compile your script into memory and keep it
there, whereas CGI will run it once, cleaning out the entire process space. Many times
you have heard "always use "-w", always use "-w" and 'use strict'". This is more impor-
tant here than anywhere else!
Your scripts cannot contain the __END__ or __DATA__ token to terminate compilation.
SEE ALSO
perl(1), mod_perl(3), Apache(3), Apache::Debug(3)
AUTHORS
Andreas J. Koenig and Doug MacEachern
perl v5.8.4 1999-01-17 Apache::Registry(3pm)
Generated by $Id: phpMan.php,v 4.49 2006/02/26 13:18:18 chedong Exp $ Author: Che Dong
On Apache/2.0.61 (Unix) PHP/4.4.7 mod_ssl/2.0.61 OpenSSL/0.9.7e mod_fastcgi/2.4.2 DAV/2 SVN/1.4.2
Under GNU General Public License
2009-01-06 12:47 @38.103.63.57 Crawled by CCBot/1.0 (+http://www.commoncrawl.org/bot.html)