NAME
Catalyst::Plugin::ExternalURI - Rewrite URLs generated with uri_for
VERSION
Version 0.02
SYNOPSIS
Include ExternalURI in your Catalyst Plugin list to activate it
In MyApp.pm
use Catalyst qw/ ... ExternalURI ... /;
In MyApps configuration:
__PACKAGE__->config(
externaluri => [
# Converts urls with the form of /static/css to start with another domain name
{ '^/static' => 'http://static.mydomain.com' },
...
{ 'MATCH' => 'REWRITE' }
or
{ match => '^/static', rewrite => 'http://static.mydomain.com' },
]
);
DESCRIPTION
This plugin helps you rewrite the URLs generated by "uri_for" (and
"uri_for_action") so they can point to different domains (not necesarily
hosted by your application).
USE CASES
Enable static content to be hosted in external services
If you upload your resources to services like Amazon S3, CloudFiles, or
CDNs you can easily change the appropiate urls in your application to
point to the resources on that provider.
{ '^/static/' => 'http://yours3bucket.s3.amazonaws.com/' }
# $c->uri_for('/static/css/main.css') gets converted into
# http://yours3bucket.s3.amazonaws.com/static/css/main.css
Enable parallel download of resources
Since your pages now point to various domains, your browser will open
parallel connections to those domains (enabling faster pages loads). Try
splitting images, js and css to load from different domains.
{ '^/static/css/' => 'http://css.myapp.com/' },
{ '^/static/js/' => 'http://js.myapp.com/' },
# $c->uri_for('/static/css/main.css') gets converted into
# http://css.myapp.com/static/css/main.css
# $c->uri_for('/static/js/framework.js') gets converted into
# http://js.myapp.com/static/js/framework.js
Avoid cache problems
You can prefix a version number to all your static URLs. That way, when
you deploy, you can point all your static contents to fresh, new,
uncached versions of your files.
{ '^/static' => 'http://js.mydomain.com/v1' }
# $c->uri_for('/static/js/framework.js') gets converted into
# http://js.myapp.com/v1/static/js/framework.js
Configuration
The "externaluri" key of the configuration has to contain an ARRAY of
RULES. Each call to uri_for will evaluate the RULES in the configuration
of the plugin.
Each rule is a hashref that has the form of:
{ 'REGEX' => 'REWRITE' }
or
{ match => 'REGEX', rewrite => 'REWRITE' [, continue => 1 ] }
Each rules match is evaluated against the uri that is passed to
"uri_for". When a key matches the uri, the REWRITE gets applied, and
evaluation of rules is interrupted, unless stated in the rule with a
"continue" key with a value of 1.
REWRITE rules force specific portions of a url to their specification:
"https://" Forces the scheme part of the URL to be https. All other
elements are unchanged
"http://mydomain.com" Will force the scheme to http, and the host part
of the URL to mydomain.com
"/v3" Will force a prefix in the path of the URL
"http://mybucket.s3.amazonaws.com/v1" Will force scheme to http, change
the host, and prefix the URI part with /v1
CAVEAT
Be specific with your matches
'/static' will match uris like '/im/not/static'. This is supported, but
it may not be what you meant to do. You probably meant '^/static'
AUTHOR
Jose Luis Martinez (JLMARTIN)
Miquel Ruiz (MRUIZ)
COPYRIGHT