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-rw-r--r--plugins/OStatus/lib/Webfinger.php139
-rw-r--r--plugins/OStatus/lib/XRD.php183
2 files changed, 322 insertions, 0 deletions
diff --git a/plugins/OStatus/lib/Webfinger.php b/plugins/OStatus/lib/Webfinger.php
new file mode 100644
index 000000000..7ab6b421b
--- /dev/null
+++ b/plugins/OStatus/lib/Webfinger.php
@@ -0,0 +1,139 @@
+<?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/
+ */
+
+define('WEBFINGER_SERVICE_REL_VALUE', 'lrdd');
+
+/**
+ * Implement the webfinger protocol.
+ */
+class Webfinger
+{
+ /**
+ * Perform a webfinger lookup given an account.
+ */
+ public function lookup($id)
+ {
+ $id = $this->normalize($id);
+ list($name, $domain) = explode('@', $id);
+
+ $links = $this->getServiceLinks($domain);
+ if (!$links) {
+ return false;
+ }
+
+ $services = array();
+ foreach ($links as $link) {
+ if ($link['template']) {
+ return $this->getServiceDescription($link['template'], $id);
+ }
+ if ($link['href']) {
+ return $this->getServiceDescription($link['href'], $id);
+ }
+ }
+ }
+
+ /**
+ * Normalize an account ID
+ */
+ function normalize($id)
+ {
+ if (substr($id, 0, 7) == 'acct://') {
+ return substr($id, 7);
+ } else if (substr($id, 0, 5) == 'acct:') {
+ return substr($id, 5);
+ }
+
+ return $id;
+ }
+
+ function getServiceLinks($domain)
+ {
+ $url = 'http://'. $domain .'/.well-known/host-meta';
+ $content = $this->fetchURL($url);
+ $result = XRD::parse($content);
+
+ // Ensure that the host == domain (spec may include signing later)
+ if ($result->host != $domain) {
+ return false;
+ }
+
+ $links = array();
+ foreach ($result->links as $link) {
+ if ($link['rel'] == WEBFINGER_SERVICE_REL_VALUE) {
+ $links[] = $link;
+ }
+
+ }
+ return $links;
+ }
+
+ function getServiceDescription($template, $id)
+ {
+ $url = $this->applyTemplate($template, 'acct:' . $id);
+
+ $content = $this->fetchURL($url);
+
+ return XRD::parse($content);
+ }
+
+ function fetchURL($url)
+ {
+ try {
+ $client = new HTTPClient();
+ $response = $client->get($url);
+ } catch (HTTP_Request2_Exception $e) {
+ return false;
+ }
+
+ if ($response->getStatus() != 200) {
+ return false;
+ }
+
+ return $response->getBody();
+ }
+
+ function applyTemplate($template, $id)
+ {
+ $template = str_replace('{uri}', urlencode($id), $template);
+
+ return $template;
+ }
+
+ function getHostMeta($domain, $template) {
+ $xrd = new XRD();
+ $xrd->host = $domain;
+ $xrd->links[] = array('rel' => 'lrdd',
+ 'template' => $template,
+ 'title' => array('Resource Descriptor'));
+
+ return $xrd->toXML();
+ }
+}
+
+
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;
+ }
+}
+
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-14 15:40:47 +0000