1023 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			1023 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * Implements the OpenID attribute exchange specification, version 1.0
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 * as of svn revision 370 from openid.net svn.
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 *
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 * @package OpenID
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 */
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/**
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 * Require utility classes and functions for the consumer.
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 */
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require_once "Auth/OpenID/Extension.php";
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require_once "Auth/OpenID/Message.php";
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require_once "Auth/OpenID/TrustRoot.php";
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define('Auth_OpenID_AX_NS_URI',
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       'http://openid.net/srv/ax/1.0');
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// Use this as the 'count' value for an attribute in a FetchRequest to
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// ask for as many values as the OP can provide.
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define('Auth_OpenID_AX_UNLIMITED_VALUES', 'unlimited');
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// Minimum supported alias length in characters.  Here for
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// completeness.
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define('Auth_OpenID_AX_MINIMUM_SUPPORTED_ALIAS_LENGTH', 32);
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/**
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 * AX utility class.
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 *
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 * @package OpenID
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 */
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class Auth_OpenID_AX {
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    /**
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     * @param mixed $thing Any object which may be an
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     * Auth_OpenID_AX_Error object.
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     *
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     * @return bool true if $thing is an Auth_OpenID_AX_Error; false
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     * if not.
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     */
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    function isError($thing)
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    {
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        return is_a($thing, 'Auth_OpenID_AX_Error');
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    }
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}
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/**
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 * Check an alias for invalid characters; raise AXError if any are
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 * found.  Return None if the alias is valid.
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 */
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function Auth_OpenID_AX_checkAlias($alias)
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{
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  if (strpos($alias, ',') !== false) {
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      return new Auth_OpenID_AX_Error(sprintf(
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                   "Alias %s must not contain comma", $alias));
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  }
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  if (strpos($alias, '.') !== false) {
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      return new Auth_OpenID_AX_Error(sprintf(
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                   "Alias %s must not contain period", $alias));
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  }
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  return true;
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}
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/**
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 * Results from data that does not meet the attribute exchange 1.0
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 * specification
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 *
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 * @package OpenID
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 */
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class Auth_OpenID_AX_Error {
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    function Auth_OpenID_AX_Error($message=null)
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    {
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        $this->message = $message;
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    }
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}
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/**
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 * Abstract class containing common code for attribute exchange
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 * messages.
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 *
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 * @package OpenID
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 */
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class Auth_OpenID_AX_Message extends Auth_OpenID_Extension {
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    /**
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     * ns_alias: The preferred namespace alias for attribute exchange
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     * messages
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     */
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    var $ns_alias = 'ax';
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    /**
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     * mode: The type of this attribute exchange message. This must be
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     * overridden in subclasses.
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     */
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    var $mode = null;
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    var $ns_uri = Auth_OpenID_AX_NS_URI;
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    /**
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     * Return Auth_OpenID_AX_Error if the mode in the attribute
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     * exchange arguments does not match what is expected for this
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     * class; true otherwise.
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     *
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     * @access private
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     */
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    function _checkMode($ax_args)
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    {
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        $mode = Auth_OpenID::arrayGet($ax_args, 'mode');
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        if ($mode != $this->mode) {
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            return new Auth_OpenID_AX_Error(
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                            sprintf(
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                                    "Expected mode '%s'; got '%s'",
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                                    $this->mode, $mode));
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        }
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        return true;
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    }
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    /**
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     * Return a set of attribute exchange arguments containing the
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     * basic information that must be in every attribute exchange
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     * message.
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     *
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     * @access private
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     */
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    function _newArgs()
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    {
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        return array('mode' => $this->mode);
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    }
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}
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/**
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 * Represents a single attribute in an attribute exchange
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 * request. This should be added to an AXRequest object in order to
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 * request the attribute.
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 *
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 * @package OpenID
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 */
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class Auth_OpenID_AX_AttrInfo {
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    /**
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     * Construct an attribute information object.  Do not call this
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     * directly; call make(...) instead.
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     *
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     * @param string $type_uri The type URI for this attribute.
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     *
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     * @param int $count The number of values of this type to request.
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     *
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     * @param bool $required Whether the attribute will be marked as
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     * required in the request.
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     *
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     * @param string $alias The name that should be given to this
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     * attribute in the request.
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     */
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    function Auth_OpenID_AX_AttrInfo($type_uri, $count, $required,
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                                     $alias)
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    {
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        /**
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         * required: Whether the attribute will be marked as required
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         * when presented to the subject of the attribute exchange
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         * request.
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         */
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        $this->required = $required;
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        /**
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         * count: How many values of this type to request from the
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         * subject. Defaults to one.
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         */
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        $this->count = $count;
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        /**
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         * type_uri: The identifier that determines what the attribute
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         * represents and how it is serialized. For example, one type
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         * URI representing dates could represent a Unix timestamp in
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         * base 10 and another could represent a human-readable
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         * string.
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         */
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        $this->type_uri = $type_uri;
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        /**
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         * alias: The name that should be given to this attribute in
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         * the request. If it is not supplied, a generic name will be
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         * assigned. For example, if you want to call a Unix timestamp
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         * value 'tstamp', set its alias to that value. If two
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         * attributes in the same message request to use the same
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         * alias, the request will fail to be generated.
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         */
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        $this->alias = $alias;
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    }
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    /**
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     * Construct an attribute information object.  For parameter
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     * details, see the constructor.
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     */
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    function make($type_uri, $count=1, $required=false,
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                  $alias=null)
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    {
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        if ($alias !== null) {
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            $result = Auth_OpenID_AX_checkAlias($alias);
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            if (Auth_OpenID_AX::isError($result)) {
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                return $result;
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            }
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        }
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        return new Auth_OpenID_AX_AttrInfo($type_uri, $count, $required,
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                                           $alias);
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    }
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    /**
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     * When processing a request for this attribute, the OP should
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     * call this method to determine whether all available attribute
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     * values were requested.  If self.count == UNLIMITED_VALUES, this
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     * returns True.  Otherwise this returns False, in which case
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     * self.count is an integer.
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    */
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    function wantsUnlimitedValues()
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    {
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        return $this->count === Auth_OpenID_AX_UNLIMITED_VALUES;
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    }
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}
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/**
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 * Given a namespace mapping and a string containing a comma-separated
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 * list of namespace aliases, return a list of type URIs that
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 * correspond to those aliases.
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 *
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 * @param $namespace_map The mapping from namespace URI to alias
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 * @param $alias_list_s The string containing the comma-separated
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 * list of aliases. May also be None for convenience.
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 *
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 * @return $seq The list of namespace URIs that corresponds to the
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 * supplied list of aliases. If the string was zero-length or None, an
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 * empty list will be returned.
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 *
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 * return null If an alias is present in the list of aliases but
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 * is not present in the namespace map.
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 */
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function Auth_OpenID_AX_toTypeURIs(&$namespace_map, $alias_list_s)
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{
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    $uris = array();
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    if ($alias_list_s) {
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        foreach (explode(',', $alias_list_s) as $alias) {
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            $type_uri = $namespace_map->getNamespaceURI($alias);
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            if ($type_uri === null) {
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                // raise KeyError(
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                // 'No type is defined for attribute name %r' % (alias,))
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                return new Auth_OpenID_AX_Error(
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                  sprintf('No type is defined for attribute name %s',
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                          $alias)
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                  );
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            } else {
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                $uris[] = $type_uri;
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            }
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        }
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    }
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    return $uris;
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}
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/**
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 * An attribute exchange 'fetch_request' message. This message is sent
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 * by a relying party when it wishes to obtain attributes about the
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 * subject of an OpenID authentication request.
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 *
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 * @package OpenID
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 */
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class Auth_OpenID_AX_FetchRequest extends Auth_OpenID_AX_Message {
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    var $mode = 'fetch_request';
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    function Auth_OpenID_AX_FetchRequest($update_url=null)
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    {
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        /**
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         * requested_attributes: The attributes that have been
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         * requested thus far, indexed by the type URI.
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         */
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        $this->requested_attributes = array();
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        /**
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         * update_url: A URL that will accept responses for this
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         * attribute exchange request, even in the absence of the user
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         * who made this request.
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        */
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        $this->update_url = $update_url;
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    }
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    /**
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     * Add an attribute to this attribute exchange request.
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     *
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     * @param attribute: The attribute that is being requested
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     * @return true on success, false when the requested attribute is
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     * already present in this fetch request.
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     */
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    function add($attribute)
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    {
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        if ($this->contains($attribute->type_uri)) {
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            return new Auth_OpenID_AX_Error(
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              sprintf("The attribute %s has already been requested",
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                      $attribute->type_uri));
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        }
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        $this->requested_attributes[$attribute->type_uri] = $attribute;
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        return true;
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    }
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    /**
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     * Get the serialized form of this attribute fetch request.
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     *
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     * @returns Auth_OpenID_AX_FetchRequest The fetch request message parameters
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     */
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    function getExtensionArgs()
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    {
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        $aliases = new Auth_OpenID_NamespaceMap();
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        $required = array();
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        $if_available = array();
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        $ax_args = $this->_newArgs();
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        foreach ($this->requested_attributes as $type_uri => $attribute) {
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            if ($attribute->alias === null) {
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                $alias = $aliases->add($type_uri);
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            } else {
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                $alias = $aliases->addAlias($type_uri, $attribute->alias);
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                if ($alias === null) {
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                    return new Auth_OpenID_AX_Error(
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                      sprintf("Could not add alias %s for URI %s",
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                              $attribute->alias, $type_uri
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                      ));
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                }
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            }
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            if ($attribute->required) {
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                $required[] = $alias;
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            } else {
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                $if_available[] = $alias;
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            }
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            if ($attribute->count != 1) {
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                $ax_args['count.' . $alias] = strval($attribute->count);
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            }
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            $ax_args['type.' . $alias] = $type_uri;
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        }
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        if ($required) {
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            $ax_args['required'] = implode(',', $required);
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        }
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        if ($if_available) {
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            $ax_args['if_available'] = implode(',', $if_available);
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        }
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        return $ax_args;
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    }
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 | 
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    /**
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     * Get the type URIs for all attributes that have been marked as
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     * required.
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     *
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     * @return A list of the type URIs for attributes that have been
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     * marked as required.
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     */
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    function getRequiredAttrs()
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    {
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        $required = array();
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						|
        foreach ($this->requested_attributes as $type_uri => $attribute) {
 | 
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            if ($attribute->required) {
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                $required[] = $type_uri;
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            }
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        }
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        return $required;
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    }
 | 
						|
 | 
						|
    /**
 | 
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     * Extract a FetchRequest from an OpenID message
 | 
						|
     *
 | 
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     * @param request: The OpenID request containing the attribute
 | 
						|
     * fetch request
 | 
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     *
 | 
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     * @returns mixed An Auth_OpenID_AX_Error or the
 | 
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     * Auth_OpenID_AX_FetchRequest extracted from the request message if
 | 
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     * successful
 | 
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     */
 | 
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    function &fromOpenIDRequest($request)
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    {
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        $m = $request->message;
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        $obj = new Auth_OpenID_AX_FetchRequest();
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        $ax_args = $m->getArgs($obj->ns_uri);
 | 
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 | 
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        $result = $obj->parseExtensionArgs($ax_args);
 | 
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 | 
						|
        if (Auth_OpenID_AX::isError($result)) {
 | 
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            return $result;
 | 
						|
        }
 | 
						|
 | 
						|
        if ($obj->update_url) {
 | 
						|
            // Update URL must match the openid.realm of the
 | 
						|
            // underlying OpenID 2 message.
 | 
						|
            $realm = $m->getArg(Auth_OpenID_OPENID_NS, 'realm',
 | 
						|
                        $m->getArg(
 | 
						|
                                  Auth_OpenID_OPENID_NS,
 | 
						|
                                  'return_to'));
 | 
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 | 
						|
            if (!$realm) {
 | 
						|
                $obj = new Auth_OpenID_AX_Error(
 | 
						|
                  sprintf("Cannot validate update_url %s " .
 | 
						|
                          "against absent realm", $obj->update_url));
 | 
						|
            } else if (!Auth_OpenID_TrustRoot::match($realm,
 | 
						|
                                                     $obj->update_url)) {
 | 
						|
                $obj = new Auth_OpenID_AX_Error(
 | 
						|
                  sprintf("Update URL %s failed validation against realm %s",
 | 
						|
                          $obj->update_url, $realm));
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        return $obj;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Given attribute exchange arguments, populate this FetchRequest.
 | 
						|
     *
 | 
						|
     * @return $result Auth_OpenID_AX_Error if the data to be parsed
 | 
						|
     * does not follow the attribute exchange specification. At least
 | 
						|
     * when 'if_available' or 'required' is not specified for a
 | 
						|
     * particular attribute type.  Returns true otherwise.
 | 
						|
    */
 | 
						|
    function parseExtensionArgs($ax_args)
 | 
						|
    {
 | 
						|
        $result = $this->_checkMode($ax_args);
 | 
						|
        if (Auth_OpenID_AX::isError($result)) {
 | 
						|
            return $result;
 | 
						|
        }
 | 
						|
 | 
						|
        $aliases = new Auth_OpenID_NamespaceMap();
 | 
						|
 | 
						|
        foreach ($ax_args as $key => $value) {
 | 
						|
            if (strpos($key, 'type.') === 0) {
 | 
						|
                $alias = substr($key, 5);
 | 
						|
                $type_uri = $value;
 | 
						|
 | 
						|
                $alias = $aliases->addAlias($type_uri, $alias);
 | 
						|
 | 
						|
                if ($alias === null) {
 | 
						|
                    return new Auth_OpenID_AX_Error(
 | 
						|
                      sprintf("Could not add alias %s for URI %s",
 | 
						|
                              $alias, $type_uri)
 | 
						|
                      );
 | 
						|
                }
 | 
						|
 | 
						|
                $count_s = Auth_OpenID::arrayGet($ax_args, 'count.' . $alias);
 | 
						|
                if ($count_s) {
 | 
						|
                    $count = Auth_OpenID::intval($count_s);
 | 
						|
                    if (($count === false) &&
 | 
						|
                        ($count_s === Auth_OpenID_AX_UNLIMITED_VALUES)) {
 | 
						|
                        $count = $count_s;
 | 
						|
                    }
 | 
						|
                } else {
 | 
						|
                    $count = 1;
 | 
						|
                }
 | 
						|
 | 
						|
                if ($count === false) {
 | 
						|
                    return new Auth_OpenID_AX_Error(
 | 
						|
                      sprintf("Integer value expected for %s, got %s",
 | 
						|
                              'count.' . $alias, $count_s));
 | 
						|
                }
 | 
						|
 | 
						|
                $attrinfo = Auth_OpenID_AX_AttrInfo::make($type_uri, $count,
 | 
						|
                                                          false, $alias);
 | 
						|
 | 
						|
                if (Auth_OpenID_AX::isError($attrinfo)) {
 | 
						|
                    return $attrinfo;
 | 
						|
                }
 | 
						|
 | 
						|
                $this->add($attrinfo);
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        $required = Auth_OpenID_AX_toTypeURIs($aliases,
 | 
						|
                         Auth_OpenID::arrayGet($ax_args, 'required'));
 | 
						|
 | 
						|
        foreach ($required as $type_uri) {
 | 
						|
            $attrib =& $this->requested_attributes[$type_uri];
 | 
						|
            $attrib->required = true;
 | 
						|
        }
 | 
						|
 | 
						|
        $if_available = Auth_OpenID_AX_toTypeURIs($aliases,
 | 
						|
                             Auth_OpenID::arrayGet($ax_args, 'if_available'));
 | 
						|
 | 
						|
        $all_type_uris = array_merge($required, $if_available);
 | 
						|
 | 
						|
        foreach ($aliases->iterNamespaceURIs() as $type_uri) {
 | 
						|
            if (!in_array($type_uri, $all_type_uris)) {
 | 
						|
                return new Auth_OpenID_AX_Error(
 | 
						|
                  sprintf('Type URI %s was in the request but not ' .
 | 
						|
                          'present in "required" or "if_available"',
 | 
						|
                          $type_uri));
 | 
						|
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        $this->update_url = Auth_OpenID::arrayGet($ax_args, 'update_url');
 | 
						|
 | 
						|
        return true;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Iterate over the AttrInfo objects that are contained in this
 | 
						|
     * fetch_request.
 | 
						|
     */
 | 
						|
    function iterAttrs()
 | 
						|
    {
 | 
						|
        return array_values($this->requested_attributes);
 | 
						|
    }
 | 
						|
 | 
						|
    function iterTypes()
 | 
						|
    {
 | 
						|
        return array_keys($this->requested_attributes);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Is the given type URI present in this fetch_request?
 | 
						|
     */
 | 
						|
    function contains($type_uri)
 | 
						|
    {
 | 
						|
        return in_array($type_uri, $this->iterTypes());
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
 * An abstract class that implements a message that has attribute keys
 | 
						|
 * and values. It contains the common code between fetch_response and
 | 
						|
 * store_request.
 | 
						|
 *
 | 
						|
 * @package OpenID
 | 
						|
 */
 | 
						|
class Auth_OpenID_AX_KeyValueMessage extends Auth_OpenID_AX_Message {
 | 
						|
 | 
						|
    function Auth_OpenID_AX_KeyValueMessage()
 | 
						|
    {
 | 
						|
        $this->data = array();
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Add a single value for the given attribute type to the
 | 
						|
     * message. If there are already values specified for this type,
 | 
						|
     * this value will be sent in addition to the values already
 | 
						|
     * specified.
 | 
						|
     *
 | 
						|
     * @param type_uri: The URI for the attribute
 | 
						|
     * @param value: The value to add to the response to the relying
 | 
						|
     * party for this attribute
 | 
						|
     * @return null
 | 
						|
     */
 | 
						|
    function addValue($type_uri, $value)
 | 
						|
    {
 | 
						|
        if (!array_key_exists($type_uri, $this->data)) {
 | 
						|
            $this->data[$type_uri] = array();
 | 
						|
        }
 | 
						|
 | 
						|
        $values =& $this->data[$type_uri];
 | 
						|
        $values[] = $value;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Set the values for the given attribute type. This replaces any
 | 
						|
     * values that have already been set for this attribute.
 | 
						|
     *
 | 
						|
     * @param type_uri: The URI for the attribute
 | 
						|
     * @param values: A list of values to send for this attribute.
 | 
						|
     */
 | 
						|
    function setValues($type_uri, &$values)
 | 
						|
    {
 | 
						|
        $this->data[$type_uri] =& $values;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Get the extension arguments for the key/value pairs contained
 | 
						|
     * in this message.
 | 
						|
     *
 | 
						|
     * @param aliases: An alias mapping. Set to None if you don't care
 | 
						|
     * about the aliases for this request.
 | 
						|
     *
 | 
						|
     * @access private
 | 
						|
     */
 | 
						|
    function _getExtensionKVArgs(&$aliases)
 | 
						|
    {
 | 
						|
        if ($aliases === null) {
 | 
						|
            $aliases = new Auth_OpenID_NamespaceMap();
 | 
						|
        }
 | 
						|
 | 
						|
        $ax_args = array();
 | 
						|
 | 
						|
        foreach ($this->data as $type_uri => $values) {
 | 
						|
            $alias = $aliases->add($type_uri);
 | 
						|
 | 
						|
            $ax_args['type.' . $alias] = $type_uri;
 | 
						|
            $ax_args['count.' . $alias] = strval(count($values));
 | 
						|
 | 
						|
            foreach ($values as $i => $value) {
 | 
						|
              $key = sprintf('value.%s.%d', $alias, $i + 1);
 | 
						|
              $ax_args[$key] = $value;
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        return $ax_args;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Parse attribute exchange key/value arguments into this object.
 | 
						|
     *
 | 
						|
     * @param ax_args: The attribute exchange fetch_response
 | 
						|
     * arguments, with namespacing removed.
 | 
						|
     *
 | 
						|
     * @return Auth_OpenID_AX_Error or true
 | 
						|
     */
 | 
						|
    function parseExtensionArgs($ax_args)
 | 
						|
    {
 | 
						|
        $result = $this->_checkMode($ax_args);
 | 
						|
        if (Auth_OpenID_AX::isError($result)) {
 | 
						|
            return $result;
 | 
						|
        }
 | 
						|
 | 
						|
        $aliases = new Auth_OpenID_NamespaceMap();
 | 
						|
 | 
						|
        foreach ($ax_args as $key => $value) {
 | 
						|
            if (strpos($key, 'type.') === 0) {
 | 
						|
                $type_uri = $value;
 | 
						|
                $alias = substr($key, 5);
 | 
						|
 | 
						|
                $result = Auth_OpenID_AX_checkAlias($alias);
 | 
						|
 | 
						|
                if (Auth_OpenID_AX::isError($result)) {
 | 
						|
                    return $result;
 | 
						|
                }
 | 
						|
 | 
						|
                $alias = $aliases->addAlias($type_uri, $alias);
 | 
						|
 | 
						|
                if ($alias === null) {
 | 
						|
                    return new Auth_OpenID_AX_Error(
 | 
						|
                      sprintf("Could not add alias %s for URI %s",
 | 
						|
                              $alias, $type_uri)
 | 
						|
                      );
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        foreach ($aliases->iteritems() as $pair) {
 | 
						|
            list($type_uri, $alias) = $pair;
 | 
						|
 | 
						|
            if (array_key_exists('count.' . $alias, $ax_args)) {
 | 
						|
 | 
						|
                $count_key = 'count.' . $alias;
 | 
						|
                $count_s = $ax_args[$count_key];
 | 
						|
 | 
						|
                $count = Auth_OpenID::intval($count_s);
 | 
						|
 | 
						|
                if ($count === false) {
 | 
						|
                    return new Auth_OpenID_AX_Error(
 | 
						|
                      sprintf("Integer value expected for %s, got %s",
 | 
						|
                              'count. %s' . $alias, $count_s,
 | 
						|
                              Auth_OpenID_AX_UNLIMITED_VALUES)
 | 
						|
                                                    );
 | 
						|
                }
 | 
						|
 | 
						|
                $values = array();
 | 
						|
                for ($i = 1; $i < $count + 1; $i++) {
 | 
						|
                    $value_key = sprintf('value.%s.%d', $alias, $i);
 | 
						|
 | 
						|
                    if (!array_key_exists($value_key, $ax_args)) {
 | 
						|
                      return new Auth_OpenID_AX_Error(
 | 
						|
                        sprintf(
 | 
						|
                                "No value found for key %s",
 | 
						|
                                $value_key));
 | 
						|
                    }
 | 
						|
 | 
						|
                    $value = $ax_args[$value_key];
 | 
						|
                    $values[] = $value;
 | 
						|
                }
 | 
						|
            } else {
 | 
						|
                $key = 'value.' . $alias;
 | 
						|
 | 
						|
                if (!array_key_exists($key, $ax_args)) {
 | 
						|
                  return new Auth_OpenID_AX_Error(
 | 
						|
                    sprintf(
 | 
						|
                            "No value found for key %s",
 | 
						|
                            $key));
 | 
						|
                }
 | 
						|
 | 
						|
                $value = $ax_args['value.' . $alias];
 | 
						|
 | 
						|
                if ($value == '') {
 | 
						|
                    $values = array();
 | 
						|
                } else {
 | 
						|
                    $values = array($value);
 | 
						|
                }
 | 
						|
            }
 | 
						|
 | 
						|
            $this->data[$type_uri] = $values;
 | 
						|
        }
 | 
						|
 | 
						|
        return true;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Get a single value for an attribute. If no value was sent for
 | 
						|
     * this attribute, use the supplied default. If there is more than
 | 
						|
     * one value for this attribute, this method will fail.
 | 
						|
     *
 | 
						|
     * @param type_uri: The URI for the attribute
 | 
						|
     * @param default: The value to return if the attribute was not
 | 
						|
     * sent in the fetch_response.
 | 
						|
     *
 | 
						|
     * @return $value Auth_OpenID_AX_Error on failure or the value of
 | 
						|
     * the attribute in the fetch_response message, or the default
 | 
						|
     * supplied
 | 
						|
     */
 | 
						|
    function getSingle($type_uri, $default=null)
 | 
						|
    {
 | 
						|
        $values = Auth_OpenID::arrayGet($this->data, $type_uri);
 | 
						|
        if (!$values) {
 | 
						|
            return $default;
 | 
						|
        } else if (count($values) == 1) {
 | 
						|
            return $values[0];
 | 
						|
        } else {
 | 
						|
            return new Auth_OpenID_AX_Error(
 | 
						|
              sprintf('More than one value present for %s',
 | 
						|
                      $type_uri)
 | 
						|
              );
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Get the list of values for this attribute in the
 | 
						|
     * fetch_response.
 | 
						|
     *
 | 
						|
     * XXX: what to do if the values are not present? default
 | 
						|
     * parameter? this is funny because it's always supposed to return
 | 
						|
     * a list, so the default may break that, though it's provided by
 | 
						|
     * the user's code, so it might be okay. If no default is
 | 
						|
     * supplied, should the return be None or []?
 | 
						|
     *
 | 
						|
     * @param type_uri: The URI of the attribute
 | 
						|
     *
 | 
						|
     * @return $values The list of values for this attribute in the
 | 
						|
     * response. May be an empty list.  If the attribute was not sent
 | 
						|
     * in the response, returns Auth_OpenID_AX_Error.
 | 
						|
     */
 | 
						|
    function get($type_uri)
 | 
						|
    {
 | 
						|
        if (array_key_exists($type_uri, $this->data)) {
 | 
						|
            return $this->data[$type_uri];
 | 
						|
        } else {
 | 
						|
            return new Auth_OpenID_AX_Error(
 | 
						|
              sprintf("Type URI %s not found in response",
 | 
						|
                      $type_uri)
 | 
						|
              );
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Get the number of responses for a particular attribute in this
 | 
						|
     * fetch_response message.
 | 
						|
     *
 | 
						|
     * @param type_uri: The URI of the attribute
 | 
						|
     *
 | 
						|
     * @returns int The number of values sent for this attribute.  If
 | 
						|
     * the attribute was not sent in the response, returns
 | 
						|
     * Auth_OpenID_AX_Error.
 | 
						|
     */
 | 
						|
    function count($type_uri)
 | 
						|
    {
 | 
						|
        if (array_key_exists($type_uri, $this->data)) {
 | 
						|
            return count($this->get($type_uri));
 | 
						|
        } else {
 | 
						|
            return new Auth_OpenID_AX_Error(
 | 
						|
              sprintf("Type URI %s not found in response",
 | 
						|
                      $type_uri)
 | 
						|
              );
 | 
						|
        }
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
 * A fetch_response attribute exchange message.
 | 
						|
 *
 | 
						|
 * @package OpenID
 | 
						|
 */
 | 
						|
class Auth_OpenID_AX_FetchResponse extends Auth_OpenID_AX_KeyValueMessage {
 | 
						|
    var $mode = 'fetch_response';
 | 
						|
 | 
						|
    function Auth_OpenID_AX_FetchResponse($update_url=null)
 | 
						|
    {
 | 
						|
        $this->Auth_OpenID_AX_KeyValueMessage();
 | 
						|
        $this->update_url = $update_url;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Serialize this object into arguments in the attribute exchange
 | 
						|
     * namespace
 | 
						|
     *
 | 
						|
     * @return $args The dictionary of unqualified attribute exchange
 | 
						|
     * arguments that represent this fetch_response, or
 | 
						|
     * Auth_OpenID_AX_Error on error.
 | 
						|
     */
 | 
						|
    function getExtensionArgs($request=null)
 | 
						|
    {
 | 
						|
        $aliases = new Auth_OpenID_NamespaceMap();
 | 
						|
 | 
						|
        $zero_value_types = array();
 | 
						|
 | 
						|
        if ($request !== null) {
 | 
						|
            // Validate the data in the context of the request (the
 | 
						|
            // same attributes should be present in each, and the
 | 
						|
            // counts in the response must be no more than the counts
 | 
						|
            // in the request)
 | 
						|
 | 
						|
            foreach ($this->data as $type_uri => $unused) {
 | 
						|
                if (!$request->contains($type_uri)) {
 | 
						|
                    return new Auth_OpenID_AX_Error(
 | 
						|
                      sprintf("Response attribute not present in request: %s",
 | 
						|
                              $type_uri)
 | 
						|
                      );
 | 
						|
                }
 | 
						|
            }
 | 
						|
 | 
						|
            foreach ($request->iterAttrs() as $attr_info) {
 | 
						|
                // Copy the aliases from the request so that reading
 | 
						|
                // the response in light of the request is easier
 | 
						|
                if ($attr_info->alias === null) {
 | 
						|
                    $aliases->add($attr_info->type_uri);
 | 
						|
                } else {
 | 
						|
                    $alias = $aliases->addAlias($attr_info->type_uri,
 | 
						|
                                                $attr_info->alias);
 | 
						|
 | 
						|
                    if ($alias === null) {
 | 
						|
                        return new Auth_OpenID_AX_Error(
 | 
						|
                          sprintf("Could not add alias %s for URI %s",
 | 
						|
                                  $attr_info->alias, $attr_info->type_uri)
 | 
						|
                          );
 | 
						|
                    }
 | 
						|
                }
 | 
						|
 | 
						|
                if (array_key_exists($attr_info->type_uri, $this->data)) {
 | 
						|
                    $values = $this->data[$attr_info->type_uri];
 | 
						|
                } else {
 | 
						|
                    $values = array();
 | 
						|
                    $zero_value_types[] = $attr_info;
 | 
						|
                }
 | 
						|
 | 
						|
                if (($attr_info->count != Auth_OpenID_AX_UNLIMITED_VALUES) &&
 | 
						|
                    ($attr_info->count < count($values))) {
 | 
						|
                    return new Auth_OpenID_AX_Error(
 | 
						|
                      sprintf("More than the number of requested values " .
 | 
						|
                              "were specified for %s",
 | 
						|
                              $attr_info->type_uri)
 | 
						|
                      );
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        $kv_args = $this->_getExtensionKVArgs($aliases);
 | 
						|
 | 
						|
        // Add the KV args into the response with the args that are
 | 
						|
        // unique to the fetch_response
 | 
						|
        $ax_args = $this->_newArgs();
 | 
						|
 | 
						|
        // For each requested attribute, put its type/alias and count
 | 
						|
        // into the response even if no data were returned.
 | 
						|
        foreach ($zero_value_types as $attr_info) {
 | 
						|
            $alias = $aliases->getAlias($attr_info->type_uri);
 | 
						|
            $kv_args['type.' . $alias] = $attr_info->type_uri;
 | 
						|
            $kv_args['count.' . $alias] = '0';
 | 
						|
        }
 | 
						|
 | 
						|
        $update_url = null;
 | 
						|
        if ($request) {
 | 
						|
            $update_url = $request->update_url;
 | 
						|
        } else {
 | 
						|
            $update_url = $this->update_url;
 | 
						|
        }
 | 
						|
 | 
						|
        if ($update_url) {
 | 
						|
            $ax_args['update_url'] = $update_url;
 | 
						|
        }
 | 
						|
 | 
						|
        Auth_OpenID::update(&$ax_args, $kv_args);
 | 
						|
 | 
						|
        return $ax_args;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @return $result Auth_OpenID_AX_Error on failure or true on
 | 
						|
     * success.
 | 
						|
     */
 | 
						|
    function parseExtensionArgs($ax_args)
 | 
						|
    {
 | 
						|
        $result = parent::parseExtensionArgs($ax_args);
 | 
						|
 | 
						|
        if (Auth_OpenID_AX::isError($result)) {
 | 
						|
            return $result;
 | 
						|
        }
 | 
						|
 | 
						|
        $this->update_url = Auth_OpenID::arrayGet($ax_args, 'update_url');
 | 
						|
 | 
						|
        return true;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Construct a FetchResponse object from an OpenID library
 | 
						|
     * SuccessResponse object.
 | 
						|
     *
 | 
						|
     * @param success_response: A successful id_res response object
 | 
						|
     *
 | 
						|
     * @param signed: Whether non-signed args should be processsed. If
 | 
						|
     * True (the default), only signed arguments will be processsed.
 | 
						|
     *
 | 
						|
     * @return $response A FetchResponse containing the data from the
 | 
						|
     * OpenID message
 | 
						|
     */
 | 
						|
    function fromSuccessResponse($success_response, $signed=true)
 | 
						|
    {
 | 
						|
        $obj = new Auth_OpenID_AX_FetchResponse();
 | 
						|
        if ($signed) {
 | 
						|
            $ax_args = $success_response->getSignedNS($obj->ns_uri);
 | 
						|
        } else {
 | 
						|
            $ax_args = $success_response->message->getArgs($obj->ns_uri);
 | 
						|
        }
 | 
						|
        if ($ax_args === null || Auth_OpenID::isFailure($ax_args) ||
 | 
						|
              sizeof($ax_args) == 0) {
 | 
						|
            return null;
 | 
						|
        }
 | 
						|
 | 
						|
        $result = $obj->parseExtensionArgs($ax_args);
 | 
						|
        if (Auth_OpenID_AX::isError($result)) {
 | 
						|
            #XXX log me
 | 
						|
            return null;
 | 
						|
        }
 | 
						|
        return $obj;
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
 * A store request attribute exchange message representation.
 | 
						|
 *
 | 
						|
 * @package OpenID
 | 
						|
 */
 | 
						|
class Auth_OpenID_AX_StoreRequest extends Auth_OpenID_AX_KeyValueMessage {
 | 
						|
    var $mode = 'store_request';
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param array $aliases The namespace aliases to use when making
 | 
						|
     * this store response. Leave as None to use defaults.
 | 
						|
     */
 | 
						|
    function getExtensionArgs($aliases=null)
 | 
						|
    {
 | 
						|
        $ax_args = $this->_newArgs();
 | 
						|
        $kv_args = $this->_getExtensionKVArgs($aliases);
 | 
						|
        Auth_OpenID::update(&$ax_args, $kv_args);
 | 
						|
        return $ax_args;
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
 * An indication that the store request was processed along with this
 | 
						|
 * OpenID transaction.  Use make(), NOT the constructor, to create
 | 
						|
 * response objects.
 | 
						|
 *
 | 
						|
 * @package OpenID
 | 
						|
 */
 | 
						|
class Auth_OpenID_AX_StoreResponse extends Auth_OpenID_AX_Message {
 | 
						|
    var $SUCCESS_MODE = 'store_response_success';
 | 
						|
    var $FAILURE_MODE = 'store_response_failure';
 | 
						|
 | 
						|
    /**
 | 
						|
     * Returns Auth_OpenID_AX_Error on error or an
 | 
						|
     * Auth_OpenID_AX_StoreResponse object on success.
 | 
						|
     */
 | 
						|
    function &make($succeeded=true, $error_message=null)
 | 
						|
    {
 | 
						|
        if (($succeeded) && ($error_message !== null)) {
 | 
						|
            return new Auth_OpenID_AX_Error('An error message may only be '.
 | 
						|
                                    'included in a failing fetch response');
 | 
						|
        }
 | 
						|
 | 
						|
        return new Auth_OpenID_AX_StoreResponse($succeeded, $error_message);
 | 
						|
    }
 | 
						|
 | 
						|
    function Auth_OpenID_AX_StoreResponse($succeeded=true, $error_message=null)
 | 
						|
    {
 | 
						|
        if ($succeeded) {
 | 
						|
            $this->mode = $this->SUCCESS_MODE;
 | 
						|
        } else {
 | 
						|
            $this->mode = $this->FAILURE_MODE;
 | 
						|
        }
 | 
						|
 | 
						|
        $this->error_message = $error_message;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Was this response a success response?
 | 
						|
     */
 | 
						|
    function succeeded()
 | 
						|
    {
 | 
						|
        return $this->mode == $this->SUCCESS_MODE;
 | 
						|
    }
 | 
						|
 | 
						|
    function getExtensionArgs()
 | 
						|
    {
 | 
						|
        $ax_args = $this->_newArgs();
 | 
						|
        if ((!$this->succeeded()) && $this->error_message) {
 | 
						|
            $ax_args['error'] = $this->error_message;
 | 
						|
        }
 | 
						|
 | 
						|
        return $ax_args;
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
?>
 |