62 lines
1.4 KiB
PHP
62 lines
1.4 KiB
PHP
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<?php
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/**
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* An interface for OpenID extensions.
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*
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* @package OpenID
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*/
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/**
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* Require the Message implementation.
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*/
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require_once 'Auth/OpenID/Message.php';
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/**
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* A base class for accessing extension request and response data for
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* the OpenID 2 protocol.
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*
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* @package OpenID
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*/
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class Auth_OpenID_Extension {
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/**
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* ns_uri: The namespace to which to add the arguments for this
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* extension
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*/
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var $ns_uri = null;
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var $ns_alias = null;
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/**
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* Get the string arguments that should be added to an OpenID
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* message for this extension.
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*/
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function getExtensionArgs()
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{
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return null;
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}
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/**
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* Add the arguments from this extension to the provided message.
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*
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* Returns the message with the extension arguments added.
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*/
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function toMessage(&$message)
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{
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$implicit = $message->isOpenID1();
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$added = $message->namespaces->addAlias($this->ns_uri,
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$this->ns_alias,
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$implicit);
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if ($added === null) {
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if ($message->namespaces->getAlias($this->ns_uri) !=
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$this->ns_alias) {
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return null;
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}
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}
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$message->updateArgs($this->ns_uri,
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$this->getExtensionArgs());
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return $message;
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}
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}
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?>
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