table of contents
Net::OAuth2::AccessToken(3pm) | User Contributed Perl Documentation | Net::OAuth2::AccessToken(3pm) |
NAME¶
Net::OAuth2::AccessToken - OAuth2 bearer token
SYNOPSIS¶
my $auth = Net::OAuth2::Profile::WebServer->new(...); my $session = $auth->get_access_token($code, ...); # $session is a Net::OAuth2::AccessToken object if($session->error) { print $session->error_description; } my $response = $session->get($request); my $response = $session->get($header, $content); print $session->to_string; # JSON # probably better to set new(auto_refresh), but you may do: $session->refresh if $session->expired;
DESCRIPTION¶
This object represents a received (bearer) token, and offers ways to use it and maintain it. A better name for this module would include client or session.
A "bearer token" is an abstract proof of your existence: different services or potentially different physical servers are able to exchange information about your session based on this, for instance whether someone logged-in while showing the token.
METHODS¶
Constructors¶
- Net::OAuth2::AccessToken->new(%options)
-
-Option --Default access_token undef auto_refresh <false> changed <false> error undef error_description <value of error> error_uri undef expires_at undef expires_in undef profile <required> refresh_always BOOLEAN refresh_token false scope undef token_type undef
- access_token => STRING
- auto_refresh => BOOLEAN
- Refresh the token when expired.
- changed => BOOLEAN
- [0.52] The token (session) needs to be saved.
- error => STRING
- Set when an error has occurred, the token is not valid. This is not numerical.
- error_description => STRING
- A humanly readible explanation on the error. This defaults to the string set with the "error" option, which is not nice to read.
- error_uri => URI
- Where to find more details about the error.
- expires_at => TIMESTAMP
- Expire this token after TIMESTAMP (as produced by the time() function)
- expires_in => SECONDS
- Expire the token SECONDS after the initiation of this object.
- profile => Net::OAuth2::Profile object
- refresh_always => BOOLEAN
- [0.53] Auto-refresh the token at each use.
- refresh_token => STRING
- [0.53] Token which can be used to refresh the token, after it has expired or earlier.
- scope => URL
- token_type => TYPE
- Net::OAuth2::AccessToken->session_thaw($session, %options)
- Pass in the output of a session_freeze() call in the past (maybe
even for an older version of this module) and get the token object
revived. This $session is a HASH.
You may pass any of the parameters for new() as %options, to overrule the values inside the $session.
-Option --Default profile <required>
example:
my $auth = Net::OAuth2::Profile::WebServer->new(...); my $token = $auth->get_access_token(...); my $session = $token->session_freeze; # now save $session in database or file ... # restore session my $auth = Net::OAuth2::Profile::WebServer->new(...); my $token = Net::OAuth2::AccessToken->session_thaw($session , profile => $auth);
Accessors¶
- $obj->access_token()
- Returns the (base64 encoded version of the) access token. The token will
get updated first, if it has expired and refresh_token is enabled, or when
new(auto_refresh) is set.
It does not matter that the token is base64 encoded or not: it will always need to be base64 encoded during transport.
- $obj->attribute(NAME)
- [0.58] Sometimes, the token gets attributes which are not standard; they have no official accessor (yet?). You can get them with this generic accessor.
- $obj->changed( [BOOLEAN] )
- [0.52] The session (token) needs to be saved, because any of the crucial parameters have been modified and "auto_save" is not defined by the profile.
- $obj->hd()
- $obj->profile()
- $obj->scope()
- $obj->state()
- $obj->token_type()
errors
When the token is received (hence this object created) it be the result of an error. It is the way the original code was designed...
- $obj->error()
- $obj->error_description()
- $obj->error_uri()
Expiration
- $obj->auto_refresh()
- $obj->expired( [$after] )
- Returns true when the token has an expiration set and that time has passed. We use this token $after this check: to avoid the token to timeout inbetween, we take (by default 15 seconds) margin.
- $obj->expires_at( [$timestamp] )
- Returns the expiration timestamp of this token (true) or "undef" (false) when it is not set.
- $obj->expires_in()
- Returns the number of seconds left, before the token is expired. That may be negative.
- $obj->refresh_always()
- $obj->refresh_token()
- $obj->update_token( $token, $tokentype, $expires_at, [$refresh_token] )
- Change the token.
Actions¶
- $obj->refresh()
- Refresh the token, even if it has not expired yet. Returned is the new access_token value, which may be undef on failure.
- $obj->session_freeze(%options)
- This returns a SESSION (a flat HASH) containing all token parameters which
needs to be saved to be able to restore this token later. This SESSION can
be passed to session_thaw() to get revived.
The "changed" flag will be cleared by this method.
Be sure that your storage is character-set aware. For instance, you probably want to set 'mysql_enable_utf8' when you store this in a MySQL database. Perl's JSON module will output utf8 by default.
- $obj->to_json()
- Freeze this object into JSON. The JSON syntax is also used by the OAuth2 protocol, so a logical choice to provide. However, generically, the session_freeze() method provided.
HTTP
The token can be encoded in transport protocol in different ways. Using these method will add the token to the HTTP messages sent.
- $obj->delete( $uri, [$header, [$content]] )
- $obj->get( $uri, [$header, [$content]] )
- $obj->post( $uri, [$header, [$content]] )
- $obj->put( $uri, [$header, [$content]] )
- $obj->request($request)
SEE ALSO¶
This module is part of Net-OAuth2 distribution version 0.66, built on October 01, 2019. Website: http://perl.overmeer.net/CPAN/.
COPYRIGHTS¶
Copyrights 2013-2019-2018 on the perl code and the related
documentation
by [Mark Overmeer <markov@cpan.org>] for SURFnet bv, The Netherlands.
For other contributors see ChangeLog.
Copyrights 2011-12 by Keith Grennan.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See http://dev.perl.org/licenses/
2019-11-26 | perl v5.30.0 |