CAS_Client::_readExtraAttributesCas20 PHP Method

    private function _readExtraAttributesCas20($success_elements)
    {
        phpCAS::traceBegin();
        $extra_attributes = array();
        // "Jasig Style" Attributes:
        //
        // 	<cas:serviceResponse xmlns:cas='http://www.yale.edu/tp/cas'>
        // 		<cas:authenticationSuccess>
        // 			<cas:user>jsmith</cas:user>
        // 			<cas:attributes>
        // 				<cas:attraStyle>RubyCAS</cas:attraStyle>
        // 				<cas:surname>Smith</cas:surname>
        // 				<cas:givenName>John</cas:givenName>
        // 				<cas:memberOf>CN=Staff,OU=Groups,DC=example,DC=edu</cas:memberOf>
        // 				<cas:memberOf>CN=Spanish Department,OU=Departments,OU=Groups,DC=example,DC=edu</cas:memberOf>
        // 			</cas:attributes>
        // 			<cas:proxyGrantingTicket>PGTIOU-84678-8a9d2sfa23casd</cas:proxyGrantingTicket>
        // 		</cas:authenticationSuccess>
        // 	</cas:serviceResponse>
        //
        if ($this->_casAttributeParserCallbackFunction !== null && is_callable($this->_casAttributeParserCallbackFunction)) {
            array_unshift($this->_casAttributeParserCallbackArgs, $success_elements->item(0));
            phpCas::trace("Calling attritubeParser callback");
            $extra_attributes = call_user_func_array($this->_casAttributeParserCallbackFunction, $this->_casAttributeParserCallbackArgs);
        } elseif ($success_elements->item(0)->getElementsByTagName("attributes")->length != 0) {
            $attr_nodes = $success_elements->item(0)->getElementsByTagName("attributes");
            phpCas::trace("Found nested jasig style attributes");
            if ($attr_nodes->item(0)->hasChildNodes()) {
                // Nested Attributes
                foreach ($attr_nodes->item(0)->childNodes as $attr_child) {
                    phpCas::trace("Attribute [" . $attr_child->localName . "] = " . $attr_child->nodeValue);
                    $this->_addAttributeToArray($extra_attributes, $attr_child->localName, $attr_child->nodeValue);
                }
            }
        } else {
            // "RubyCAS Style" attributes
            //
            // 	<cas:serviceResponse xmlns:cas='http://www.yale.edu/tp/cas'>
            // 		<cas:authenticationSuccess>
            // 			<cas:user>jsmith</cas:user>
            //
            // 			<cas:attraStyle>RubyCAS</cas:attraStyle>
            // 			<cas:surname>Smith</cas:surname>
            // 			<cas:givenName>John</cas:givenName>
            // 			<cas:memberOf>CN=Staff,OU=Groups,DC=example,DC=edu</cas:memberOf>
            // 			<cas:memberOf>CN=Spanish Department,OU=Departments,OU=Groups,DC=example,DC=edu</cas:memberOf>
            //
            // 			<cas:proxyGrantingTicket>PGTIOU-84678-8a9d2sfa23casd</cas:proxyGrantingTicket>
            // 		</cas:authenticationSuccess>
            // 	</cas:serviceResponse>
            //
            phpCas::trace("Testing for rubycas style attributes");
            $childnodes = $success_elements->item(0)->childNodes;
            foreach ($childnodes as $attr_node) {
                switch ($attr_node->localName) {
                    case 'user':
                    case 'proxies':
                    case 'proxyGrantingTicket':
                        continue;
                    default:
                        if (strlen(trim($attr_node->nodeValue))) {
                            phpCas::trace("Attribute [" . $attr_node->localName . "] = " . $attr_node->nodeValue);
                            $this->_addAttributeToArray($extra_attributes, $attr_node->localName, $attr_node->nodeValue);
                        }
                }
            }
        }
        // "Name-Value" attributes.
        //
        // Attribute format from these mailing list thread:
        // http://jasig.275507.n4.nabble.com/CAS-attributes-and-how-they-appear-in-the-CAS-response-td264272.html
        // Note: This is a less widely used format, but in use by at least two institutions.
        //
        // 	<cas:serviceResponse xmlns:cas='http://www.yale.edu/tp/cas'>
        // 		<cas:authenticationSuccess>
        // 			<cas:user>jsmith</cas:user>
        //
        // 			<cas:attribute name='attraStyle' value='Name-Value' />
        // 			<cas:attribute name='surname' value='Smith' />
        // 			<cas:attribute name='givenName' value='John' />
        // 			<cas:attribute name='memberOf' value='CN=Staff,OU=Groups,DC=example,DC=edu' />
        // 			<cas:attribute name='memberOf' value='CN=Spanish Department,OU=Departments,OU=Groups,DC=example,DC=edu' />
        //
        // 			<cas:proxyGrantingTicket>PGTIOU-84678-8a9d2sfa23casd</cas:proxyGrantingTicket>
        // 		</cas:authenticationSuccess>
        // 	</cas:serviceResponse>
        //
        if (!count($extra_attributes) && $success_elements->item(0)->getElementsByTagName("attribute")->length != 0) {
            $attr_nodes = $success_elements->item(0)->getElementsByTagName("attribute");
            $firstAttr = $attr_nodes->item(0);
            if (!$firstAttr->hasChildNodes() && $firstAttr->hasAttribute('name') && $firstAttr->hasAttribute('value')) {
                phpCas::trace("Found Name-Value style attributes");
                // Nested Attributes
                foreach ($attr_nodes as $attr_node) {
                    if ($attr_node->hasAttribute('name') && $attr_node->hasAttribute('value')) {
                        phpCas::trace("Attribute [" . $attr_node->getAttribute('name') . "] = " . $attr_node->getAttribute('value'));
                        $this->_addAttributeToArray($extra_attributes, $attr_node->getAttribute('name'), $attr_node->getAttribute('value'));
                    }
                }
            }
        }
        $this->setAttributes($extra_attributes);
        phpCAS::traceEnd();
        return true;
    }