diff options
Diffstat (limited to 'plugins/OStatus/lib/xrd.php')
| -rw-r--r-- | plugins/OStatus/lib/xrd.php | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/plugins/OStatus/lib/xrd.php b/plugins/OStatus/lib/xrd.php new file mode 100644 index 000000000..16d27f8eb --- /dev/null +++ b/plugins/OStatus/lib/xrd.php @@ -0,0 +1,183 @@ +<?php +/** + * StatusNet - the distributed open-source microblogging tool + * Copyright (C) 2010, StatusNet, Inc. + * + * A sample module to show best practices for StatusNet plugins + * + * PHP version 5 + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * @package StatusNet + * @author James Walker <james@status.net> + * @copyright 2010 StatusNet, Inc. + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0 + * @link http://status.net/ + */ + + +class XRD +{ + const XML_NS = 'http://www.w3.org/2000/xmlns/'; + + const XRD_NS = 'http://docs.oasis-open.org/ns/xri/xrd-1.0'; + + const HOST_META_NS = 'http://host-meta.net/xrd/1.0'; + + public $expires; + + public $subject; + + public $host; + + public $alias = array(); + + public $types = array(); + + public $links = array(); + + public static function parse($xml) + { + $xrd = new XRD(); + + $dom = new DOMDocument(); + $dom->loadXML($xml); + $xrd_element = $dom->getElementsByTagName('XRD')->item(0); + + // Check for host-meta host + $host = $xrd_element->getElementsByTagName('Host')->item(0)->nodeValue; + if ($host) { + $xrd->host = $host; + } + + // Loop through other elements + foreach ($xrd_element->childNodes as $node) { + switch ($node->tagName) { + case 'Expires': + $xrd->expires = $node->nodeValue; + break; + case 'Subject': + $xrd->subject = $node->nodeValue; + break; + + case 'Alias': + $xrd->alias[] = $node->nodeValue; + break; + + case 'Link': + $xrd->links[] = $xrd->parseLink($node); + break; + + case 'Type': + $xrd->types[] = $xrd->parseType($node); + break; + + } + } + return $xrd; + } + + public function toXML() + { + $dom = new DOMDocument('1.0', 'UTF-8'); + $dom->formatOutput = true; + + $xrd_dom = $dom->createElementNS(XRD::XRD_NS, 'XRD'); + $dom->appendChild($xrd_dom); + + if ($this->host) { + $host_dom = $dom->createElement('hm:Host', $this->host); + $xrd_dom->setAttributeNS(XRD::XML_NS, 'xmlns:hm', XRD::HOST_META_NS); + $xrd_dom->appendChild($host_dom); + } + + if ($this->expires) { + $expires_dom = $dom->createElement('Expires', $this->expires); + $xrd_dom->appendChild($expires_dom); + } + + if ($this->subject) { + $subject_dom = $dom->createElement('Subject', $this->subject); + $xrd_dom->appendChild($subject_dom); + } + + foreach ($this->alias as $alias) { + $alias_dom = $dom->createElement('Alias', $alias); + $xrd_dom->appendChild($alias_dom); + } + + foreach ($this->types as $type) { + $type_dom = $dom->createElement('Type', $type); + $xrd_dom->appendChild($type_dom); + } + + foreach ($this->links as $link) { + $link_dom = $this->saveLink($dom, $link); + $xrd_dom->appendChild($link_dom); + } + + return $dom->saveXML(); + } + + function parseType($element) + { + return array(); + } + + function parseLink($element) + { + $link = array(); + $link['rel'] = $element->getAttribute('rel'); + $link['type'] = $element->getAttribute('type'); + $link['href'] = $element->getAttribute('href'); + $link['template'] = $element->getAttribute('template'); + foreach ($element->childNodes as $node) { + switch($node->tagName) { + case 'Title': + $link['title'][] = $node->nodeValue; + } + } + + return $link; + } + + function saveLink($doc, $link) + { + $link_element = $doc->createElement('Link'); + if ($link['rel']) { + $link_element->setAttribute('rel', $link['rel']); + } + if ($link['type']) { + $link_element->setAttribute('type', $link['type']); + } + if ($link['href']) { + $link_element->setAttribute('href', $link['href']); + } + if ($link['template']) { + $link_element->setAttribute('template', $link['template']); + } + + if (is_array($link['title'])) { + foreach($link['title'] as $title) { + $title = $doc->createElement('Title', $title); + $link_element->appendChild($title); + } + } + + + return $link_element; + } +} + |