LWP::Authen::OAuth(3pm) 				User Contributed Perl Documentation				   LWP::Authen::OAuth(3pm)

NAME

       LWP::Authen::OAuth - generate signed OAuth requests

SYNOPSIS

	       require LWP::Authen::OAuth;

   Google
	       # Google uses 'anonymous' for unregistered Web/offline applications or the
	       # domain name for registered Web applications
	       my $ua = LWP::Authen::OAuth->new(
		       oauth_consumer_secret => "anonymous",
	       );

	       # request a 'request' token
	       my $r = $ua->post( "https://www.google.com/accounts/OAuthGetRequestToken",
		       [
			       oauth_consumer_key => 'anonymous',
			       oauth_callback => 'http://example.net/oauth',
			       xoauth_displayname => 'Example Application',
			       scope => 'https://docs.google.com/feeds/',
		       ]
	       );
	       die $r->as_string if $r->is_error;

	       # update the token secret from the HTTP response
	       $ua->oauth_update_from_response( $r );

	       # open a browser for the user

	       # data are returned as form-encoded
	       my $uri = URI->new( 'http:' );
	       $uri->query( $r->content );
	       my %oauth_data = $uri->query_form;

	       # Direct the user to here to grant you access:
	       # https://www.google.com/accounts/OAuthAuthorizeToken?
	       #       oauth_token=$oauth_data{oauth_token}
";

	       # turn the 'request' token into an 'access' token with the verifier
	       # returned by google
	       $r = $ua->post( "https://www.google.com/accounts/OAuthGetAccessToken", [
		       oauth_consumer_key => 'anonymous',
		       oauth_token => $oauth_data{oauth_token},
		       oauth_verifier => $oauth_verifier,
	       ]);

	       # update the token secret from the HTTP response
	       $ua->oauth_update_from_response( $r );

	       # now use the $ua to perform whatever actions you want

   Twitter
       Sending status updates to a single account is quite easy if you create an application. The "oauth_consumer_key" and "oauth_consumer_secret"
       come from the 'Application Details' page and the "oauth_token" and "oauth_token_secret" from the 'My Access Token' page.

	       my $ua = LWP::Authen::OAuth->new(
		       oauth_consumer_key => 'xxx1',
		       oauth_consumer_secret => 'xxx2',
		       oauth_token => 'yyy1',
		       oauth_token_secret => 'yyy2',
	       );

	       $ua->post( 'http://api.twitter.com/1/statuses/update.json', [
		       status => 'Posted this using LWP::Authen::OAuth!'
	       ]);

DESCRIPTION

       This module provides a sub-class of LWP::UserAgent that generates OAuth 1.0 signed requests. You should familiarise yourself with OAuth at
       <http://oauth.net/>.

       This module only supports HMAC_SHA1 signing.

       OAuth nonces are generated using the Perl random number generator. To set a nonce manually define 'oauth_nonce' in your requests via a CGI
       parameter or the Authorization header - see the OAuth documentation.

METHODS

       $ua = LWP::Authen::OAuth->new( ... )
	   Takes the same options as "new" in LWP::UserAgent plus optionally:

		   oauth_consumer_key
		   oauth_consumer_secret
		   oauth_token
		   oauth_token_secret

	   Most services will require some or all of these to be set even if it's just 'anonymous'.

       $ua->oauth_update_from_response( $r )
	   Update the "oauth_token" and "oauth_token_secret" from an HTTP::Response object returned by a previous request e.g. when converting a
	   request token into an access token.

       $key = $ua->oauth_consumer_key( [ KEY ] )
	   Get and optionally set the consumer key.

       $secret = $ua->oauth_consumer_secret( [ SECRET ] )
	   Get and optionally set the consumer secret.

       $token = $ua->oauth_token( [ TOKEN ] )
	   Get and optionally set the oauth token.

       $secret = $ua->oauth_token_secret( [ SECRET ] )
	   Get and optionally set the oauth token secret.

SEE ALSO

       LWP::UserAgent, MIME::Base64, Digest::SHA, URI, URI::Escape

   Rationale
       I think the complexity in OAuth is in the parameter normalisation and message signing. What this module does is to hide that complexity
       without replicating the higher-level protocol chatter.

       In Net::OAuth:

	       $r = Net::OAuth->request('request token')->new(
		       consumer_key => 'xxx',
		       request_url => 'https://photos.example.net/request_token',
		       callback => 'http://printer.example.com/request_token_ready',
		       ...
		       extra_params {
			       scope => 'global',
		       }
	       );
	       $r->sign;
	       $res = $ua->request(POST $r->to_url);
	       $res = Net::OAuth->response('request token')
		       ->from_post_body($res->content);
	       ... etc

       In LWP::Authen::OAuth:

	       $ua = LWP::Authen::OAuth->new(
		       oauth_consumer_key => 'xxx'
	       );
	       $res = $ua->post( 'https://photos.example.net/request_token', [
		       oauth_callback => 'http://printer.example.com/request_token_ready',
		       ...
		       scope => 'global',
	       ]);
	       $ua->oauth_update_from_response( $res );
	       ... etc

       Net::OAuth, OAuth::Lite.

AUTHOR

       Timothy D Brody <tdb2@ecs.soton.ac.uk>

       Copyright 2011 University of Southampton, UK

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

perl v5.12.3							    2011-03-31						   LWP::Authen::OAuth(3pm)