summaryrefslogtreecommitdiff
path: root/actions
diff options
context:
space:
mode:
authorEvan Prodromou <evan@status.net>2010-01-31 15:16:59 -0500
committerEvan Prodromou <evan@status.net>2010-01-31 15:16:59 -0500
commit30268cff7899519f249861e067e3af680ee1c570 (patch)
tree6d63f28d129942bb25cef7ad09935dca91b848b7 /actions
parentdc62246443e3584ef5267505275f618f6fa86bf7 (diff)
Add Really Simple Discovery (RSD) support
Anil Dash suggested that all implementers of the Twitter API include support for the remedial RSD format. This commit adds an RSD action that returns the API root and additional API data to help client developers discover and use our Twitter-compatible API. http://dashes.com/anil/2009/12/the-twitter-api-is-finished.html http://tales.phrasewise.com/rfc/rsd
Diffstat (limited to 'actions')
-rw-r--r--actions/public.php10
-rw-r--r--actions/rsd.php226
-rw-r--r--actions/showstream.php9
3 files changed, 244 insertions, 1 deletions
diff --git a/actions/public.php b/actions/public.php
index 982dfde15..50278bfce 100644
--- a/actions/public.php
+++ b/actions/public.php
@@ -131,12 +131,20 @@ class PublicAction extends Action
return _('Public timeline');
}
}
-
+
function extraHead()
{
parent::extraHead();
$this->element('meta', array('http-equiv' => 'X-XRDS-Location',
'content' => common_local_url('publicxrds')));
+
+ $rsd = common_local_url('rsd');
+
+ // RSD, http://tales.phrasewise.com/rfc/rsd
+
+ $this->element('link', array('rel' => 'EditURI',
+ 'type' => 'application/rsd+xml',
+ 'href' => $rsd));
}
/**
diff --git a/actions/rsd.php b/actions/rsd.php
new file mode 100644
index 000000000..f88bf2e9a
--- /dev/null
+++ b/actions/rsd.php
@@ -0,0 +1,226 @@
+<?php
+/**
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2008-2010, StatusNet, Inc.
+ *
+ * Really Simple Discovery (RSD) for API access
+ *
+ * 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/>.
+ *
+ * @category API
+ * @package StatusNet
+ * @author Evan Prodromou <evan@status.net>
+ * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
+ * @link http://status.net/
+ *
+ */
+
+if (!defined('STATUSNET')) {
+ exit(1);
+}
+
+/**
+ * RSD action class
+ *
+ * Really Simple Discovery (RSD) is a simple (to a fault, maybe)
+ * discovery tool for blog APIs.
+ *
+ * http://tales.phrasewise.com/rfc/rsd
+ *
+ * Anil Dash suggested that RSD be used for services that implement
+ * the Twitter API:
+ *
+ * http://dashes.com/anil/2009/12/the-twitter-api-is-finished.html
+ *
+ * It's in use now for WordPress.com blogs:
+ *
+ * http://matt.wordpress.com/xmlrpc.php?rsd
+ *
+ * I (evan@status.net) have tried to stay faithful to the premise of
+ * RSD, while adding information useful to StatusNet client developers.
+ * In particular:
+ *
+ * - There is a link from each user's profile page to their personal
+ * RSD feed. A personal rsd.xml includes a 'blogID' element that is
+ * their username.
+ * - There is a link from the public root to '/rsd.xml', a public RSD
+ * feed. It's identical to the personal rsd except it doesn't include
+ * a blogId.
+ * - I've added a setting to the API to indicate that OAuth support is
+ * available.
+ *
+ * @category API
+ * @package StatusNet
+ * @author Evan Prodromou <evan@status.net>
+ * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
+ * @link http://status.net/
+ */
+
+class RsdAction extends Action
+{
+ /**
+ * Optional attribute for the personal rsd.xml file.
+ */
+
+ var $user = null;
+
+ /**
+ * Prepare the action for use.
+ *
+ * Check for a nickname; redirect if non-canonical; if
+ * not provided, assume public rsd.xml.
+ *
+ * @param array $args GET, POST, and URI arguments.
+ *
+ * @return boolean success flag
+ */
+
+ function prepare($args)
+ {
+ parent::prepare($args);
+
+ // optional argument
+
+ $nickname_arg = $this->arg('nickname');
+
+ if (empty($nickname_arg)) {
+ $this->user = null;
+ } else {
+ $nickname = common_canonical_nickname($nickname_arg);
+
+ // Permanent redirect on non-canonical nickname
+
+ if ($nickname_arg != $nickname) {
+ common_redirect(common_local_url('rsd',
+ array('nickname' => $nickname)),
+ 301);
+ return false;
+ }
+
+ $this->user = User::staticGet('nickname', $nickname);
+
+ if (empty($this->user)) {
+ $this->clientError(_('No such user.'), 404);
+ return false;
+ }
+ }
+
+ return true;
+ }
+
+ /**
+ * Action handler.
+ *
+ * Outputs the XML format for an RSD file. May include
+ * personal information if this is a personal file
+ * (based on whether $user attribute is set).
+ *
+ * @param array $args array of arguments
+ *
+ * @return nothing
+ */
+
+ function handle($args)
+ {
+ header('Content-Type: application/rsd+xml');
+
+ $this->startXML();
+
+ $rsdNS = 'http://archipelago.phrasewise.com/rsd';
+ $this->elementStart('rsd', array('version' => '1.0',
+ 'xmlns' => $rsdNS));
+ $this->elementStart('service');
+ $this->element('engineName', null, _('StatusNet'));
+ $this->element('engineLink', null, 'http://status.net/');
+ $this->elementStart('apis');
+ if (Event::handle('StartRsdListApis', array($this, $this->user))) {
+
+ $blogID = (empty($this->user)) ? '' : $this->user->nickname;
+ $apiAttrs = array('name' => 'Twitter',
+ 'preferred' => 'true',
+ 'apiLink' => $this->_apiRoot(),
+ 'blogID' => $blogID);
+
+ $this->elementStart('api', $apiAttrs);
+ $this->elementStart('settings');
+ $this->element('docs', null,
+ 'http://status.net/wiki/TwitterCompatibleAPI');
+ $this->element('setting', array('name' => 'OAuth'),
+ 'true');
+ $this->elementEnd('settings');
+ $this->elementEnd('api');
+ Event::handle('EndRsdListApis', array($this, $this->user));
+ }
+ $this->elementEnd('apis');
+ $this->elementEnd('service');
+ $this->elementEnd('rsd');
+
+ $this->endXML();
+
+ return true;
+ }
+
+ /**
+ * Returns last-modified date for use in caching
+ *
+ * Per-user rsd.xml is dated to last change of user
+ * (in case of nickname change); public has no date.
+ *
+ * @return string date of last change of this page
+ */
+
+ function lastModified()
+ {
+ if (!empty($this->user)) {
+ return $this->user->modified;
+ } else {
+ return null;
+ }
+ }
+
+ /**
+ * Flag to indicate if this action is read-only
+ *
+ * It is; it doesn't change the DB.
+ *
+ * @param array $args ignored
+ *
+ * @return boolean true
+ */
+
+ function isReadOnly($args)
+ {
+ return true;
+ }
+
+ /**
+ * Return current site's API root
+ *
+ * Varies based on URL parameters, like if fancy URLs are
+ * turned on.
+ *
+ * @return string API root URI for this site
+ */
+
+ private function _apiRoot()
+ {
+ if (common_config('site', 'fancy')) {
+ return common_path('api/', true);
+ } else {
+ return common_path('index.php/api/', true);
+ }
+ }
+}
diff --git a/actions/showstream.php b/actions/showstream.php
index c52919386..07cc68b76 100644
--- a/actions/showstream.php
+++ b/actions/showstream.php
@@ -178,6 +178,15 @@ class ShowstreamAction extends ProfileAction
$this->element('link', array('rel' => 'microsummary',
'href' => common_local_url('microsummary',
array('nickname' => $this->profile->nickname))));
+
+ $rsd = common_local_url('rsd',
+ array('nickname' => $this->profile->nickname));
+
+ // RSD, http://tales.phrasewise.com/rfc/rsd
+ $this->element('link', array('rel' => 'EditURI',
+ 'type' => 'application/rsd+xml',
+ 'href' => $rsd));
+
}
function showProfile()