Provided by: libatompub-perl_0.3.7-2_all 
NAME
Atompub::Client - A client for the Atom Publishing Protocol
SYNOPSIS
use Atompub::Client;
my $client = Atompub::Client->new;
$client->username('Melody');
$client->password('Nelson');
#$client->proxy( $proxy_uri );
# Get a Service Document
my $service = $client->getService($service_uri);
my @workspaces = $service->workspaces;
my @collections = $workspaces[0]->collections;
# CRUD an Entry Resource; assuming that the 0-th collection supports
# Entry Resources
my $collection_uri = $collections[0]->href;
my $name = 'New Post';
my $entry = XML::Atom::Entry->new;
$entry->title($name);
$entry->content('Content of my post.');
my $edit_uri = $client->createEntry($collection_uri, $entry, $name);
my $feed = $client->getFeed($collection_uri);
my @entries = $feed->entries;
$entry = $client->getEntry($edit_uri);
$client->updateEntry($edit_uri, $entry);
$client->deleteEntry($edit_uri);
# CRUD a Media Resource; assuming that the 1-st collection supports
# Media Resources
my $collection_uri = $collections[1]->href;
my $name = 'My Photo';
my $edit_uri = $client->createMedia($collection_uri, 'sample1.png',
'image/png', $name);
# Get a href attribute of an "edit-media" link
my $edit_media_uri = $client->resource->edit_media_link;
my $binary = $client->getMedia($edit_media_uri);
$client->updateMedia($edit_media_uri, 'sample2.png', 'image/png');
$client->deleteEntry($edit_media_uri);
# Access to the requested HTTP::Request object
my $request = $client->request;
# Access to the received HTTP::Response object
my $response = $client->response;
# Access to the received resource (XML::Atom object or binary data)
my $resource = $client->resource;
DESCRIPTION
Atompub::Client implements a client for the Atom Publishing Protocol described at
<http://www.ietf.org/rfc/rfc5023.txt>.
The client supports the following features:
· Authentication
Atompub::Client supports the Basic and WSSE Authentication described in
<http://www.intertwingly.net/wiki/pie/DifferentlyAbledClients>.
· Service Document
Atompub::Client understands Service Documents, in which information of collections are
described, such as URIs, acceptable media types, and allowable categories.
· Media Resource support
Media Resources (binary data) as well as Entry Resources are supported. You can
create and edit Media Resources such as image and video by using Atompub::Client.
· Media type check
Atompub::Client checks media types of resources before creating and editing them to
the collection. Acceptable media types are shown in app:accept elements in the
Service Document.
· Category check
Atompub::Client checks categories in Entry Resources before creating and editing them
to the collection. Allowable categories are shown in app:categories elements in the
Service Document.
· Cache controll and versioning
On-memory cache and versioning, which are controlled by ETag and Last-Modified header,
are implemented in Atompub::Client.
· Naming resources by Slug header
The client can specify Slug header when creating a resource, which may be used as part
of the resource URI.
METHODS
Atompub::Client->new([ %options ])
Creates a new Atompub client object. The options are same as LWP::UserAgent.
$client->getService($service_uri)
Retrieves a Service Document at URI $service_uri.
Returns an XML::Atom::Service object on success, false otherwise.
$client->getCategories($category_uri)
Retrieves a Category Document at URI $category_uri.
Returns an XML::Atom::Categories object on success, false otherwise.
$client->getFeed($collection_uri)
Retrieves a Feed Document from the collection at URI $collection_uri.
Returns an XML::Atom::Feed object, false otherwise.
$client->createEntry($collection_uri, $entry, [ $slug ])
Creates a new entry in the collection at URI $collection_uri.
$entry must be an XML::Atom::Entry object.
If $slug is provided, it is set in Slug header and may be used as part of the resource
URI.
Returns a Location header, which contains a URI of the newly created resource, or false on
error.
$client->createMedia($collection_uri, $media, $media_type, [ $slug ])
Creates a new Media Resource and a Media Link Entry in the collection at URI
$collection_uri.
If $media is a reference to a scalar, it is treated as the binary. If a scalar, treated
as a file containing the Media Resource.
$media_type is the media type of the Media Resource, such as 'image/png'.
$slug is set in the Slug header, and may be used as part of the resource URI.
Returns a Location header, which contains a URI of the newly created resource, or false on
error.
$client->getEntry($edit_uri)
Retrieves an Entry Document with the given URI $edit_uri.
Returns an XML::Atom::Entry object on success, false otherwise. If the server returns 304
(Not Modified), returns a cache of the Media Resource.
$client->getMedia($edit_uri)
Retrieves a Media Resource with the given URI $edit_uri.
Returns binary data of the Media Resource on success, false otherwise. If the server
returns 304 (Not Modified), returns a cache of the Media Resource.
$client->updateEntry($edit_uri, $entry)
Updates the Entry Document at URI $edit_uri with the new Entry Document $entry, which must
be an XML::Atom::Entry object.
Returns true on success, false otherwise.
$client->updateMedia($edit_uri, $media, $media_type)
Updates the Media Resource at URI $edit_uri with the $media.
If $media is a reference to a scalar, it is treated as the binary. If a scalar, treated
as a file containing the Media Resource.
$media_type is the media type of the Media Resource, such as 'image/png'.
Returns true on success, false otherwise.
$client->deleteEntry($edit_uri)
Deletes the Entry Document at URI $edit_uri.
Returns true on success, false otherwise.
$client->deleteMedia($edit_uri)
Deletes the Media Resource at URI $edit_uri and related Media Link Entry.
Returns true on success, false otherwise.
Accessors
$client->username([ $username ])
If called with an argument, sets the username for login to $username.
Returns the current username that will be used when logging in to the Atompub server.
$client->password([ $password ])
If called with an argument, sets the password for login to $password.
Returns the current password that will be used when logging in to the Atompub server.
$client->proxy([ $proxy_uri ])
If called with an argument, sets URI of proxy server like 'http://proxy.example.com:8080'.
Returns the current URI of the proxy server.
$client->resource
$client->rc
An accessor for Entry or Media Resource, which was retrieved in the previous action.
$client->request
$client->req
An accessor for an HTTP::Request object, which was used in the previous action.
$client->response
$client->res
An accessor for an HTTP::Response object, which was used in the previous action.
INTERNAL INTERFACES
$client->init
$client->ua
Accessor to the UserAgent.
$client->info
An accessor to information of Collections described in a Service Document.
$client->cache
An accessor to the resource cache.
$client->munge_request($req)
$client->_clear
$client->_get_service(\%args)
$client->_get_categories(\%args)
$client->_get_feed(\%args)
$client->_create_resource(\%args)
$client->_get_resource(\%args)
$client->_update_resource(\%args)
$client->_delete_resource(\%args)
ERROR HANDLING
Methods return "undef" on error, and the error message can be retrieved using the errstr
method.
SEE ALSO
XML::Atom XML::Atom::Service Atompub
AUTHOR
Takeru INOUE, <takeru.inoue _ gmail.com>
LICENCE AND COPYRIGHT
Copyright (c) 2007, Takeru INOUE "<takeru.inoue _ gmail.com>". All rights reserved.
This module is free software; you can redistribute it and/or modify it under the same
terms as Perl itself. See perlartistic.
DISCLAIMER OF WARRANTY
BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE,
TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE
COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF
ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO
THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE
DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT
HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY
THE ABOVE LICENCE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY
OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.