CGI::Emulate::PSGI man page on Alpinelinux

Man page or keyword search:  
man Server   18016 pages
apropos Keyword Search (all sections)
Output format
Alpinelinux logo
[printable version]

CGI::Emulate::PSGI(3) User Contributed Perl DocumentationCGI::Emulate::PSGI(3)

NAME
       CGI::Emulate::PSGI - PSGI adapter for CGI

SYNOPSIS
	   my $app = CGI::Emulate::PSGI->handler(sub {
	       # Existing CGI code
	   });

DESCRIPTION
       This module allows an application designed for the CGI environment to
       run in a PSGI environment, and thus on any of the backends that PSGI
       supports.

       It works by translating the environment provided by the PSGI
       specification to one expected by the CGI specification. Likewise, it
       captures output as it would be prepared for the CGI standard, and
       translates it to the format expected for the PSGI standard using
       CGI::Parse::PSGI module.

CGI.pm
       If your application uses CGI, be sure to cleanup the global variables
       in the handler loop yourself, so:

	   my $app = CGI::Emulate::PSGI->handler(sub {
	       use CGI;
	       CGI::initialize_globals();
	       my $q = CGI->new;
	       # ...
	   });

       Otherwise previous request variables will be reused in the new
       requests.

       Alternatively, you can install and use CGI::Compile from CPAN and
       compiles your existing CGI scripts into a sub that is perfectly ready
       to be converted to PSGI application using this module.

	 my $sub = CGI::Compile->compile("/path/to/script.cgi");
	 my $app = CGI::Emulate::PSGI->handler($sub);

       This will take care of assigning an unique namespace for each script
       etc. See CGI::Compile for details.

       You can also consider using CGI::PSGI but that would require you to
       slightly change your code from:

	 my $q = CGI->new;
	 # ...
	 print $q->header, $output;

       into:

	 use CGI::PSGI;

	 my $app = sub {
	     my $env = shift;
	     my $q = CGI::PSGI->new($env);
	     # ...
	     return [ $q->psgi_header, [ $output ] ];
	 };

       See CGI::PSGI for details.

METHODS
       handler
	     my $app = CGI::Emulate::PSGI->handler($code);

	   Creates a PSGI application code reference out of CGI code
	   reference.

       emulate_environment
	     my %env = CGI::Emulate::PSGI->emulate_environment($env);

	   Creates an environment hash out of PSGI environment hash. If your
	   code or framework just needs an environment variable emulation, use
	   this method like:

	     local %ENV = (%ENV, CGI::Emulate::PSGI->emulate_environment($env));
	     # run your application

	   If you use "handler" method to create a PSGI environment hash, this
	   is automatically called in the created application.

AUTHOR
       Tokuhiro Matsuno <tokuhirom@cpan.org>

       Tatsuhiko Miyagawa

COPYRIGHT AND LICENSE
       Copyright (c) 2009-2010 by tokuhirom.

       This program is free software; you can redistribute it and/or modify it
       under the same terms as Perl itself.

       The full text of the license can be found in the LICENSE file included
       with this module.

SEE ALSO
       PSGI CGI::Compile CGI::PSGI Plack CGI::Parse::PSGI

perl v5.18.2			  2012-10-19		 CGI::Emulate::PSGI(3)
[top]

List of man pages available for Alpinelinux

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net