NAME
Catalyst::Action::RenderView::ErrorHandler - Custom errorhandling in deployed applications
VERSION
version 0.100166
SYNOPSIS
sub end : ActionClass('RenderView::ErrorHandler') {}
DESCRIPTION
We all dread the Please come back later screen. Its uninformative, non- helpful, and in general an awfull default thing to do.
This module lets the developer configure what happens in case of emergency.
- If you want the errors emailed to you? You can have it.
- Want them logged somewhere as well? suresure, we will do it.
- Custom errorpage that fits your design you say? Aw come on :)
CONFIGURATION AND ENVIRONMENT
We take our configuration from $c->config->{'error_handler'}
. If you do no configuration, the default is to look for the file 'root/static/error.html', and serve that as a static file. If all you want is to show a custom, static, error page, all you have to do is install the module and add it to your end action.
OPTIONS
actions
Is an array of actions you want taken. Each value should be an hashref with atleast the following keys:
enable
If this is true, we will act even in debug mode. Great for getting debug logs AND error-handler templates rendered.
ignorePath (Optional)
If this regex matches $c->req->path
, the action will be skipped. Useful if you want to exclude some paths from triggering emails for instance. Can be used to ignore hacking attempts against PhpMyAdmin and such.
type
Can be Log for builtin, or you can prefix it with a +, then we will use it as a fully qualified class name.
The most excellent Stefan Profanter wrote Catalyst::Action::RenderView::ErrorHandler::Action::Email, which lets you send templated emails on errors.
id
The id you want to have for this action
expose_stash
Either a list of keys, a regexp for matching keys, or a simple string to denote a single stash value.
stash keys that match will be available to template handlers
handlers
Configuration as to what to do when an error occurs. We always need to show something to the user, so thats a given. Each handler represents an error state, and a given handler can perform any given number of actions in addition to rendering or sending something to the browser/client.
- HTTP status codes (404, 500 etc)
- HTTP status code groups (4xx, 5xx etc)
- "fallback" - default action taken on error.
The action is decided in that order.
template
Will be sent to your default_view for processing. Can use c.errors as needed
static
Will be read and served as a static file. This is the only option for fallback, since fallback will be used in case rendering a template failed for some reason.
If the given string begins with an '/', we treat it as an absolute path and try to read it directly. If not, we pass it trough $c->path_to()
to get an absolute path to read from.
EXAMPLE
error_handler:
actions:
# Check out
# L<Catalyst::Action::RenderView::ErrorHandler::Action::Email> if
# you want to send email from an action
- type: Email
id: email-devel
to: andreas@example.com
subject: __MYAPP__ errors:
- type: Log
id: log-server
level: error
handlers:
5xx:
template: root/error/5xx.tt
actions:
- email-devel
- log-server
500:
template: root/error/500.tt
actions:
- log-server
fallback:
static: root/static/error.html
actions:
- email-devel
INTERFACE
IMPLEMENTED METHODS
execute
Implemented to comply with Catalyst::Action interface.
It checks if there are errors, if not it it simply returns, assuming Catalyst::Action::RenderView has handled the job. If there are errors we parse the configuration and try to build our handlers.
Then it calls $self->handle
.
METHODS
handle
Handles a request, by finding the propper handler.
Once a handler is found, it calls render if there are statics or templates, and then performs all actions (if any).
render
Given either a static file or a template, it will attempt to render it and send it to $context->res->body
.
PRIVATE METHODS
_render_stash
return a list of rendering data in template from exposed stash
INHERITED METHODS
meta
Inherited from Moose
DEPENDENCIES
SEE ALSO
Thanks
AUTHOR
Andreas Marienborg <andremar@cpan.org>
CONTRIBUTORS
Andreas Marienborg <andreas.marienborg@gmail.com>
Pinnapong Silpsakulsuk <ping@abctech-thailand.com>
zdk <nx2zdk@gmail.com>
COPYRIGHT AND LICENSE
This software is copyright (c) 2013 by Andreas Marienborg.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.