151 lines
		
	
	
		
			5.7 KiB
		
	
	
	
		
			PHP
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			151 lines
		
	
	
		
			5.7 KiB
		
	
	
	
		
			PHP
		
	
	
		
			Executable File
		
	
	
	
	
<?php
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/**
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 * This file is part of libomb
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 *
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 * PHP version 5
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 *
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 * LICENSE: This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU Affero General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU Affero General Public License for more details.
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 *
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 * You should have received a copy of the GNU Affero General Public License
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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 *
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 * @package OMB
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 * @author  Adrian Lang <mail@adrianlang.de>
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 * @license http://www.gnu.org/licenses/agpl.html GNU AGPL 3.0
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 * @version 0.1a-20090828
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 * @link    http://adrianlang.de/libomb
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 */
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require_once 'xrds_writer.php';
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/**
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 * Write OMB-specific XRDS using XMLWriter
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 *
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 * This class writes the XRDS file announcing the OMB server. It uses XMLWriter.
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 * An instance of OMB_Plain_XRDS_Writer should be passed to
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 * OMB_Service_Provider->writeXRDS.
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 */
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class OMB_Plain_XRDS_Writer implements OMB_XRDS_Writer
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{
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    /**
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     * Write XRDS using XMLWriter
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     *
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     * Outputs a XRDS document specifying an OMB service.
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     *
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     * @param OMB_profile     $user   The target user for the OMB service
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     * @param OMB_XRDS_Mapper $mapper An OMB_XRDS_Mapper providing endpoint URLs
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     */
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    public function writeXRDS($user, $mapper)
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    {
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        header('Content-Type: application/xrds+xml');
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        $xw = new XMLWriter();
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        $xw->openURI('php://output');
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        $xw->setIndent(true);
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        $xw->startDocument('1.0', 'UTF-8');
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        $this->_writeFullElement($xw, 'XRDS', array('xmlns' => 'xri://$xrds'), array(
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        array('XRD', array('xmlns' => 'xri://$xrd*($v*2.0)',
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                            'xml:id' => 'oauth',
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                            'xmlns:simple' => 'http://xrds-simple.net/core/1.0',
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                            'version' => '2.0'), array(
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          array('Type', null, 'xri://$xrds*simple'),
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          array('Service', null, array(
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            array('Type', null, OAUTH_ENDPOINT_REQUEST),
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            array('URI', null, $mapper->getURL(OAUTH_ENDPOINT_REQUEST)),
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            array('Type', null, OAUTH_AUTH_HEADER),
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            array('Type', null, OAUTH_POST_BODY),
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            array('Type', null, OAUTH_HMAC_SHA1),
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            array('LocalID', null, $user->getIdentifierURI())
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          )),
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          array('Service', null, array(
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            array('Type', null, OAUTH_ENDPOINT_AUTHORIZE),
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            array('URI', null, $mapper->getURL(OAUTH_ENDPOINT_AUTHORIZE)),
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            array('Type', null, OAUTH_AUTH_HEADER),
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            array('Type', null, OAUTH_POST_BODY),
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            array('Type', null, OAUTH_HMAC_SHA1)
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          )),
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          array('Service', null, array(
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            array('Type', null, OAUTH_ENDPOINT_ACCESS),
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            array('URI', null, $mapper->getURL(OAUTH_ENDPOINT_ACCESS)),
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            array('Type', null, OAUTH_AUTH_HEADER),
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            array('Type', null, OAUTH_POST_BODY),
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            array('Type', null, OAUTH_HMAC_SHA1)
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          )),
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          array('Service', null, array(
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            array('Type', null, OAUTH_ENDPOINT_RESOURCE),
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            array('Type', null, OAUTH_AUTH_HEADER),
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            array('Type', null, OAUTH_POST_BODY),
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            array('Type', null, OAUTH_HMAC_SHA1)
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          ))
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        )),
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        array('XRD', array('xmlns' => 'xri://$xrd*($v*2.0)',
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                           'xml:id' => 'omb',
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                           'xmlns:simple' => 'http://xrds-simple.net/core/1.0',
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                           'version' => '2.0'), array(
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          array('Type', null, 'xri://$xrds*simple'),
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          array('Service', null, array(
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            array('Type', null, OMB_ENDPOINT_POSTNOTICE),
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            array('URI', null, $mapper->getURL(OMB_ENDPOINT_POSTNOTICE))
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          )),
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          array('Service', null, array(
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            array('Type', null, OMB_ENDPOINT_UPDATEPROFILE),
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            array('URI', null, $mapper->getURL(OMB_ENDPOINT_UPDATEPROFILE))
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          ))
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        )),
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        array('XRD', array('xmlns' => 'xri://$xrd*($v*2.0)',
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                           'version' => '2.0'), array(
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          array('Type', null, 'xri://$xrds*simple'),
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          array('Service', null, array(
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            array('Type', null, OAUTH_DISCOVERY),
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            array('URI', null, '#oauth')
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          )),
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          array('Service', null, array(
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            array('Type', null, OMB_VERSION),
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            array('URI', null, '#omb')
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          ))
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        ))));
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        $xw->endDocument();
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        $xw->flush();
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    }
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    /**
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     * Write a complex XML element
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     *
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     * Outputs a XML element with attributes and content.
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     *
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     * @param XMLWriter    $xw         The XMLWriter used to output the element
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     * @param string       $tag        The tag name
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     * @param array|null   $attributes A map of XML attributes
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     * @param array|string $content    The content of the element; either an
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     *                                 array of child nodes each specified by a
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     *                                 three entry-array ($tag, $attributes,
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     *                                 $content) or a string
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     */
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    private function _writeFullElement($xw, $tag, $attributes, $content)
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    {
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        $xw->startElement($tag);
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        if (!is_null($attributes)) {
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            foreach ($attributes as $name => $value) {
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                $xw->writeAttribute($name, $value);
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            }
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        }
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        if (is_array($content)) {
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            foreach ($content as $val) {
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                $this->_writeFullElement($xw, $val[0], $val[1], $val[2]);
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            }
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        } else {
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            $xw->text($content);
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        }
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        $xw->fullEndElement();
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    }
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}
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?>
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