# NAME

Plack::Builder::Conditionals - Plack::Builder extension

# SYNOPSIS

   use Plack::Builder;
   use Plack::Builder::Conditionals;
   # exports "match_if, addr, path, method, header, browser, any, all"

   builder {
       enable match_if addr(['192.168.0.0/24','127.0.0.1']),
           "Plack::Middleware::ReverseProxy";

     enable match_if all( path(qr!^/private!), addr( '!', [qw!127.0.0.1 ::1!] ) ),
         "Plack::Middleware::Auth::Basic", authenticator => \&authen_cb;

     enable match_if sub { my $env = shift; $env->{HTTP_X_ENABLE_FRAMEWORK} },
         "Plack::Middleware::XFramework", framework => 'Test';

       $app;
   };

   use Plack::Builder::Conditionals -prefx => 'c';
   # exports "c_match_if, c_addr, c_path, c_method, c_header, c_any, c_all"



# DESCRIPTION

Plack::Builder::Conditionals is..

# FUNCTIONS

- match\_if

       enable match_if addr('127.0.0.1'), "Plack::Middleware::ReverseProxy";
       enable match_if sub { $_[0]->{REMOTE_ADDR} eq '127.0.0.1' }, "Plack::Middleware::ReverseProxy";

   As like Plack::Builder's enable\_if enable middleware if given conditions return true

- addr

       addr('127.0.0.1');
       addr([qw!192.168.0.0/24 127.0.0.1 ::1!]);
       addr('!','127.0.0.1');

   return true if REMOTE\_ADDR is found in the CIDR range. If first argument is '!', return the opposite result.
   This function supports IPv6 addresses

- path

       path('/')
       path(qr!^/(\w+)/!)
       path('!', qr!^/private!)

   matching PATH\_INFO

- method

       method('GET')
       method(qr/^(get|head)$/i)
       method(qw(GET HEAD))
       method('!','GET')
       method('!', qr/^(post|put)$/i)
       method('!', qw(POST PUT))
- header

       header('User-Agent',qr/iphone/)
       header('If-Modified-Since') #exists check
       header('!', 'User-Agent',qr/MSIE/)
- browser

       browser(qr/\bMSIE (7|8)/)
       browser('!',qr!^Mozilla/4!);

   Shortcut for header('User-Agent')

- all

       all( method('GET'), path(qr!^/static!) )

   return true if all conditions are return true

- any

       any( path(qr!^/static!), path('/favicon.ico') )

   return true if any condition return true

# EXPORT

   use Plack::Builder::Conditionals -prefx => 'c';
   # exports "c_match_if, c_addr, c_path, c_method, c_header, c_any, c_all"


you can add selected prefix to export functions

# AUTHOR

Masahiro Nagano <kazeburo {at} gmail.com>

# SEE ALSO

[Plack::Builder](http://search.cpan.org/perldoc?Plack::Builder)

# LICENSE

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