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discovery piece - hand merged :P

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This commit is contained in:
James Walker 2010-02-09 01:37:45 -05:00
parent 4e6f587f86
commit 841981a381
7 changed files with 824 additions and 1 deletions
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35
plugins/OStatus/OStatusPlugin.php
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@ -53,6 +53,19 @@ class OStatusPlugin extends Plugin
*/
function onRouterInitialized($m)
{
$m->connect('.well-known/host-meta',
array('action' => 'hostmeta'));
$m->connect('main/webfinger',
array('action' => 'webfinger'));
$m->connect('main/ostatus',
array('action' => 'ostatusinit'));
$m->connect('main/ostatus?nickname=:nickname',
array('action' => 'ostatusinit'), array('nickname' => '[A-Za-z0-9_-]+'));
$m->connect('main/ostatussub',
array('action' => 'ostatussub'));
$m->connect('main/ostatussub',
array('action' => 'ostatussub'), array('feed' => '[A-Za-z0-9\.\/\:]+'));
$m->connect('main/push/hub', array('action' => 'pushhub'));
$m->connect('main/push/callback/:feed',
@ -148,6 +161,28 @@ class OStatusPlugin extends Plugin
return true;
}
/**
* Add in an OStatus subscribe button
*/
function onStartProfilePageActionsElements($output, $profile)
{
$cur = common_current_user();
if (empty($cur)) {
// Add an OStatus subscribe
$output->elementStart('li', 'entity_subscribe');
$url = common_local_url('ostatusinit',
array('nickname' => $profile->nickname));
$output->element('a', array('href' => $url,
'class' => 'entity_remote_subscribe'),
_('OStatus'));
$output->elementEnd('li');
}
}
function onCheckSchema() {
// warning: the autoincrement doesn't seem to set.
// alter table feedinfo change column id id int(11) not null auto_increment;

42
plugins/OStatus/actions/hostmeta.php Normal file
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@ -0,0 +1,42 @@
<?php
/*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2010, StatusNet, Inc.
*
* 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 OStatusPlugin
* @maintainer James Walker <james@status.net>
*/
if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
class HostMetaAction extends Action
{
function handle()
{
parent::handle();
$w = new Webfinger();
$domain = common_config('site', 'server');
$url = common_local_url('webfinger');
$url.= '?uri={uri}';
print $w->getHostMeta($domain, $url);
}
}

128
plugins/OStatus/actions/ostatusinit.php Normal file
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@ -0,0 +1,128 @@
<?php
/*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2010, StatusNet, Inc.
*
* 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 OStatusPlugin
* @maintainer James Walker <james@status.net>
*/
if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
class OStatusInitAction extends Action
{
var $nickname;
var $acct;
var $err;
function prepare($args)
{
parent::prepare($args);
if (common_logged_in()) {
$this->clientError(_('You can use the local subscription!'));
return false;
}
$this->nickname = $this->trimmed('nickname');
$this->acct = $this->trimmed('acct');
return true;
}
function handle($args)
{
parent::handle($args);
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
/* Use a session token for CSRF protection. */
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
$this->showForm(_('There was a problem with your session token. '.
'Try again, please.'));
return;
}
$this->ostatusConnect();
} else {
$this->showForm();
}
}
function showForm($err = null)
{
$this->err = $err;
$this->showPage();
}
function showContent()
{
$this->elementStart('form', array('id' => 'form_ostatus_connect',
'method' => 'post',
'class' => 'form_settings',
'action' => common_local_url('ostatusinit')));
$this->elementStart('fieldset');
$this->element('legend', _('Subscribe to a remote user'));
$this->hidden('token', common_session_token());
$this->elementStart('ul', 'form_data');
$this->elementStart('li');
$this->input('nickname', _('User nickname'), $this->nickname,
_('Nickname of the user you want to follow'));
$this->elementEnd('li');
$this->elementStart('li');
$this->input('acct', _('Profile Account'), $this->acct,
_('Your account id (i.e. user@identi.ca)'));
$this->elementEnd('li');
$this->elementEnd('ul');
$this->submit('submit', _('Subscribe'));
$this->elementEnd('fieldset');
$this->elementEnd('form');
}
function ostatusConnect()
{
$w = new Webfinger;
$result = $w->lookup($this->acct);
foreach ($result->links as $link) {
if ($link['rel'] == 'http://ostatus.org/schema/1.0/subscribe') {
// We found a URL - let's redirect!
$user = User::staticGet('nickname', $this->nickname);
$feed_url = common_local_url('ApiTimelineUser',
array('id' => $user->id,
'format' => 'atom'));
$url = $w->applyTemplate($link['template'], $feed_url);
common_redirect($url, 303);
}
}
}
function title()
{
return _('OStatus Connect');
}
}

226
plugins/OStatus/actions/ostatussub.php Normal file
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@ -0,0 +1,226 @@
<?php
/*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2010, StatusNet, Inc.
*
* 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 OStatusPlugin
* @maintainer James Walker <james@status.net>
*/
if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
class OStatusSubAction extends Action
{
protected $feedurl;
function title()
{
return _m("OStatus Subscribe");
}
function handle($args)
{
if ($this->validateFeed()) {
$this->showForm();
}
return true;
}
function showForm($err = null)
{
$this->err = $err;
$this->showPage();
}
function showContent()
{
$user = common_current_user();
$profile = $user->getProfile();
$fuser = null;
$flink = Foreign_link::getByUserID($user->id, FEEDSUB_SERVICE);
if (!empty($flink)) {
$fuser = $flink->getForeignUser();
}
$this->elementStart('form', array('method' => 'post',
'id' => 'form_settings_feedsub',
'class' => 'form_settings',
'action' =>
common_local_url('feedsubsettings')));
$this->hidden('token', common_session_token());
$this->elementStart('fieldset', array('id' => 'settings_feeds'));
$this->elementStart('ul', 'form_data');
$this->elementStart('li', array('id' => 'settings_twitter_login_button'));
$this->input('feedurl', _('Feed URL'), $this->feedurl, _('Enter the URL of a PubSubHubbub-enabled feed'));
$this->elementEnd('li');
$this->elementEnd('ul');
$this->submit('subscribe', _m('Subscribe'));
$this->elementEnd('fieldset');
$this->elementEnd('form');
$this->previewFeed();
}
/**
* Handle posts to this form
*
* Based on the button that was pressed, muxes out to other functions
* to do the actual task requested.
*
* All sub-functions reload the form with a message -- success or failure.
*
* @return void
*/
function handlePost()
{
// CSRF protection
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
$this->showForm(_('There was a problem with your session token. '.
'Try again, please.'));
return;
}
if ($this->arg('subscribe')) {
$this->saveFeed();
} else {
$this->showForm(_('Unexpected form submission.'));
}
}
/**
* Set up and add a feed
*
* @return boolean true if feed successfully read
* Sends you back to input form if not.
*/
function validateFeed()
{
$feedurl = $this->trimmed('feed');
if ($feedurl == '') {
$this->showForm(_m('Empty feed URL!'));
return;
}
$this->feedurl = $feedurl;
// Get the canonical feed URI and check it
try {
$discover = new FeedDiscovery();
$uri = $discover->discoverFromURL($feedurl);
} catch (FeedSubBadURLException $e) {
$this->showForm(_m('Invalid URL or could not reach server.'));
return false;
} catch (FeedSubBadResponseException $e) {
$this->showForm(_m('Cannot read feed; server returned error.'));
return false;
} catch (FeedSubEmptyException $e) {
$this->showForm(_m('Cannot read feed; server returned an empty page.'));
return false;
} catch (FeedSubBadHTMLException $e) {
$this->showForm(_m('Bad HTML, could not find feed link.'));
return false;
} catch (FeedSubNoFeedException $e) {
$this->showForm(_m('Could not find a feed linked from this URL.'));
return false;
} catch (FeedSubUnrecognizedTypeException $e) {
$this->showForm(_m('Not a recognized feed type.'));
return false;
} catch (FeedSubException $e) {
// Any new ones we forgot about
$this->showForm(_m('Bad feed URL.'));
return false;
}
$this->munger = $discover->feedMunger();
$this->feedinfo = $this->munger->feedInfo();
if ($this->feedinfo->huburi == '') {
$this->showForm(_m('Feed is not PuSH-enabled; cannot subscribe.'));
return false;
}
return true;
}
function saveFeed()
{
if ($this->validateFeed()) {
$this->preview = true;
$this->feedinfo = Feedinfo::ensureProfile($this->munger);
// If not already in use, subscribe to updates via the hub
if ($this->feedinfo->sub_start) {
common_log(LOG_INFO, __METHOD__ . ": double the fun! new sub for {$this->feedinfo->feeduri} last subbed {$this->feedinfo->sub_start}");
} else {
$ok = $this->feedinfo->subscribe();
common_log(LOG_INFO, __METHOD__ . ": sub was $ok");
if (!$ok) {
$this->showForm(_m('Feed subscription failed! Bad response from hub.'));
return;
}
}
// And subscribe the current user to the local profile
$user = common_current_user();
$profile = $this->feedinfo->getProfile();
if ($user->isSubscribed($profile)) {
$this->showForm(_m('Already subscribed!'));
} elseif ($user->subscribeTo($profile)) {
$this->showForm(_m('Feed subscribed!'));
} else {
$this->showForm(_m('Feed subscription failed!'));
}
}
}
function previewFeed()
{
$feedinfo = $this->munger->feedinfo();
$notice = $this->munger->notice(0, true); // preview
if ($notice) {
$this->element('b', null, 'Preview of latest post from this feed:');
$item = new NoticeList($notice, $this);
$item->show();
} else {
$this->element('b', null, 'No posts in this feed yet.');
}
}
}

70
plugins/OStatus/actions/webfinger.php Normal file
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@ -0,0 +1,70 @@
<?php
/*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2010, StatusNet, Inc.
*
* 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 OStatusPlugin
* @maintainer James Walker <james@status.net>
*/
if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
class WebfingerAction extends Action
{
public $uri;
function prepare($args)
{
parent::prepare($args);
$this->uri = $this->trimmed('uri');
return true;
}
function handle()
{
$acct = Webfinger::normalize($this->uri);
$xrd = new XRD();
list($nick, $domain) = explode('@', urldecode($acct));
$nick = common_canonical_nickname($nick);
$this->user = User::staticGet('nickname', $nick);
if (!$this->user) {
$this->clientError(_('No such user.'), 404);
return false;
}
$xrd->subject = $this->uri;
$xrd->alias[] = common_profile_url($nick);
$xrd->links[] = array('rel' => 'http://webfinger.net/rel/profile-page',
'type' => 'text/html',
'href' => common_profile_url($nick));
// TODO - finalize where the redirect should go on the publisher
$url = common_local_url('ostatussub') . '?feed={uri}';
$xrd->links[] = array('rel' => 'http://ostatus.org/schema/1.0/subscribe',
'template' => $url );
header('Content-type: text/xml');
print $xrd->toXML();
}
}

139
plugins/OStatus/lib/Webfinger.php Normal file
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@ -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();
}
}

183
plugins/OStatus/lib/XRD.php Normal file
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@ -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;
}
}