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-rw-r--r--actions/remotesubscribe.php328
1 files changed, 62 insertions, 266 deletions
diff --git a/actions/remotesubscribe.php b/actions/remotesubscribe.php
index 7323103fc..90499bbe2 100644
--- a/actions/remotesubscribe.php
+++ b/actions/remotesubscribe.php
@@ -1,5 +1,16 @@
<?php
-/*
+/**
+ * Handler for remote subscription
+ *
+ * PHP version 5
+ *
+ * @category Action
+ * @package Laconica
+ * @author Evan Prodromou <evan@controlyourself.ca>
+ * @author Robin Millette <millette@controlyourself.ca>
+ * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
+ * @link http://laconi.ca/
+ *
* Laconica - a distributed open-source microblogging tool
* Copyright (C) 2008, 2009, Control Yourself, Inc.
*
@@ -15,11 +26,26 @@
*
* 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/>.
- */
+ **/
-if (!defined('LACONICA')) { exit(1); }
+if (!defined('LACONICA')) {
+ exit(1);
+}
+
+require_once INSTALLDIR.'/lib/omb.php';
+require_once INSTALLDIR.'/extlib/libomb/service_consumer.php';
+require_once INSTALLDIR.'/extlib/libomb/profile.php';
-require_once(INSTALLDIR.'/lib/omb.php');
+/**
+ * Handler for remote subscription
+ *
+ * @category Action
+ * @package Laconica
+ * @author Evan Prodromou <evan@controlyourself.ca>
+ * @author Robin Millette <millette@controlyourself.ca>
+ * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
+ * @link http://laconi.ca/
+ */
class RemotesubscribeAction extends Action
{
@@ -36,7 +62,7 @@ class RemotesubscribeAction extends Action
return false;
}
- $this->nickname = $this->trimmed('nickname');
+ $this->nickname = $this->trimmed('nickname');
$this->profile_url = $this->trimmed('profile_url');
return true;
@@ -47,7 +73,7 @@ class RemotesubscribeAction extends Action
parent::handle($args);
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
- # CSRF protection
+ /* 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. '.
@@ -92,8 +118,8 @@ class RemotesubscribeAction extends Action
function showContent()
{
- # id = remotesubscribe conflicts with the
- # button on profile page
+ /* The id 'remotesubscribe' conflicts with the
+ button on profile page. */
$this->elementStart('form', array('id' => 'form_remote_subscribe',
'method' => 'post',
'class' => 'form_settings',
@@ -119,247 +145,50 @@ class RemotesubscribeAction extends Action
function remoteSubscription()
{
- $user = $this->getUser();
-
- if (!$user) {
+ if (!$this->nickname) {
$this->showForm(_('No such user.'));
return;
}
+ $user = User::staticGet('nickname', $this->nickname);
+
$this->profile_url = $this->trimmed('profile_url');
if (!$this->profile_url) {
- $this->showForm(_('No such user.'));
+ $this->showForm(_('No such user'));
return;
}
- if (!Validate::uri($this->profile_url, array('allowed_schemes' => array('http', 'https')))) {
+ if (!common_valid_http_url($this->profile_url)) {
$this->showForm(_('Invalid profile URL (bad format)'));
return;
}
- $fetcher = Auth_Yadis_Yadis::getHTTPFetcher();
- $yadis = Auth_Yadis_Yadis::discover($this->profile_url, $fetcher);
-
- if (!$yadis || $yadis->failed) {
- $this->showForm(_('Not a valid profile URL (no YADIS document).'));
- return;
- }
-
- # XXX: a little liberal for sites that accidentally put whitespace before the xml declaration
-
- $xrds =& Auth_Yadis_XRDS::parseXRDS(trim($yadis->response_text));
-
- if (!$xrds) {
- $this->showForm(_('Not a valid profile URL (no XRDS defined).'));
- return;
- }
-
- $omb = $this->getOmb($xrds);
-
- if (!$omb) {
- $this->showForm(_('Not a valid profile URL (incorrect services).'));
- return;
- }
-
- if (omb_service_uri($omb[OAUTH_ENDPOINT_REQUEST]) ==
- common_local_url('requesttoken'))
- {
- $this->showForm(_('That\'s a local profile! Login to subscribe.'));
+ try {
+ $service = new OMB_Service_Consumer($this->profile_url,
+ common_root_url(),
+ omb_oauth_datastore());
+ } catch (OMB_InvalidYadisException $e) {
+ $this->showForm(_('Not a valid profile URL (no YADIS document or ' .
+ 'no or invalid XRDS defined).'));
return;
}
- if (User::staticGet('uri', omb_local_id($omb[OAUTH_ENDPOINT_REQUEST]))) {
- $this->showForm(_('That\'s a local profile! Login to subscribe.'));
+ if ($service->getServiceURI(OAUTH_ENDPOINT_REQUEST) ==
+ common_local_url('requesttoken') ||
+ User::staticGet('uri', $service->getRemoteUserURI())) {
+ $this->showForm(_('That’s a local profile! Login to subscribe.'));
return;
}
- list($token, $secret) = $this->requestToken($omb);
-
- if (!$token || !$secret) {
- $this->showForm(_('Couldn\'t get a request token.'));
+ try {
+ $service->requestToken();
+ } catch (OMB_RemoteServiceException $e) {
+ $this->showForm(_('Couldn’t get a request token.'));
return;
}
- $this->requestAuthorization($user, $omb, $token, $secret);
- }
-
- function getUser()
- {
- $user = null;
- if ($this->nickname) {
- $user = User::staticGet('nickname', $this->nickname);
- }
- return $user;
- }
-
- function getOmb($xrds)
- {
- static $omb_endpoints = array(OMB_ENDPOINT_UPDATEPROFILE, OMB_ENDPOINT_POSTNOTICE);
- static $oauth_endpoints = array(OAUTH_ENDPOINT_REQUEST, OAUTH_ENDPOINT_AUTHORIZE,
- OAUTH_ENDPOINT_ACCESS);
- $omb = array();
-
- # XXX: the following code could probably be refactored to eliminate dupes
-
- $oauth_services = omb_get_services($xrds, OAUTH_DISCOVERY);
-
- if (!$oauth_services) {
- return null;
- }
-
- $oauth_service = $oauth_services[0];
-
- $oauth_xrd = $this->getXRD($oauth_service, $xrds);
-
- if (!$oauth_xrd) {
- return null;
- }
-
- if (!$this->addServices($oauth_xrd, $oauth_endpoints, $omb)) {
- return null;
- }
-
- $omb_services = omb_get_services($xrds, OMB_NAMESPACE);
-
- if (!$omb_services) {
- return null;
- }
-
- $omb_service = $omb_services[0];
-
- $omb_xrd = $this->getXRD($omb_service, $xrds);
-
- if (!$omb_xrd) {
- return null;
- }
-
- if (!$this->addServices($omb_xrd, $omb_endpoints, $omb)) {
- return null;
- }
-
- # XXX: check that we got all the services we needed
-
- foreach (array_merge($omb_endpoints, $oauth_endpoints) as $type) {
- if (!array_key_exists($type, $omb) || !$omb[$type]) {
- return null;
- }
- }
-
- if (!omb_local_id($omb[OAUTH_ENDPOINT_REQUEST])) {
- return null;
- }
-
- return $omb;
- }
-
- function getXRD($main_service, $main_xrds)
- {
- $uri = omb_service_uri($main_service);
- if (strpos($uri, "#") !== 0) {
- # FIXME: more rigorous handling of external service definitions
- return null;
- }
- $id = substr($uri, 1);
- $nodes = $main_xrds->allXrdNodes;
- $parser = $main_xrds->parser;
- foreach ($nodes as $node) {
- $attrs = $parser->attributes($node);
- if (array_key_exists('xml:id', $attrs) &&
- $attrs['xml:id'] == $id) {
- # XXX: trick the constructor into thinking this is the only node
- $bogus_nodes = array($node);
- return new Auth_Yadis_XRDS($parser, $bogus_nodes);
- }
- }
- return null;
- }
-
- function addServices($xrd, $types, &$omb)
- {
- foreach ($types as $type) {
- $matches = omb_get_services($xrd, $type);
- if ($matches) {
- $omb[$type] = $matches[0];
- } else {
- # no match for type
- return false;
- }
- }
- return true;
- }
-
- function requestToken($omb)
- {
- $con = omb_oauth_consumer();
-
- $url = omb_service_uri($omb[OAUTH_ENDPOINT_REQUEST]);
-
- # XXX: Is this the right thing to do? Strip off GET params and make them
- # POST params? Seems wrong to me.
-
- $parsed = parse_url($url);
- $params = array();
- parse_str($parsed['query'], $params);
-
- $req = OAuthRequest::from_consumer_and_token($con, null, "POST", $url, $params);
-
- $listener = omb_local_id($omb[OAUTH_ENDPOINT_REQUEST]);
-
- if (!$listener) {
- return null;
- }
-
- $req->set_parameter('omb_listener', $listener);
- $req->set_parameter('omb_version', OMB_VERSION_01);
-
- # XXX: test to see if endpoint accepts this signature method
-
- $req->sign_request(omb_hmac_sha1(), $con, null);
-
- # We re-use this tool's fetcher, since it's pretty good
-
- $fetcher = Auth_Yadis_Yadis::getHTTPFetcher();
-
- $result = $fetcher->post($req->get_normalized_http_url(),
- $req->to_postdata(),
- array('User-Agent: Laconica/' . LACONICA_VERSION));
- if ($result->status != 200) {
- return null;
- }
-
- parse_str($result->body, $return);
-
- return array($return['oauth_token'], $return['oauth_token_secret']);
- }
-
- function requestAuthorization($user, $omb, $token, $secret)
- {
- $con = omb_oauth_consumer();
- $tok = new OAuthToken($token, $secret);
-
- $url = omb_service_uri($omb[OAUTH_ENDPOINT_AUTHORIZE]);
-
- # XXX: Is this the right thing to do? Strip off GET params and make them
- # POST params? Seems wrong to me.
-
- $parsed = parse_url($url);
- $params = array();
- parse_str($parsed['query'], $params);
-
- $req = OAuthRequest::from_consumer_and_token($con, $tok, 'GET', $url, $params);
-
- # We send over a ton of information. This lets the other
- # server store info about our user, and it lets the current
- # user decide if they really want to authorize the subscription.
-
- $req->set_parameter('omb_version', OMB_VERSION_01);
- $req->set_parameter('omb_listener', omb_local_id($omb[OAUTH_ENDPOINT_REQUEST]));
- $req->set_parameter('omb_listenee', $user->uri);
- $req->set_parameter('omb_listenee_profile', common_profile_url($user->nickname));
- $req->set_parameter('omb_listenee_nickname', $user->nickname);
- $req->set_parameter('omb_listenee_license', common_config('license', 'url'));
-
+ /* Create an OMB_Profile from $user. */
$profile = $user->getProfile();
if (!$profile) {
common_log_db_error($user, 'SELECT', __FILE__);
@@ -367,49 +196,16 @@ class RemotesubscribeAction extends Action
return;
}
- if (!is_null($profile->fullname)) {
- $req->set_parameter('omb_listenee_fullname', $profile->fullname);
- }
- if (!is_null($profile->homepage)) {
- $req->set_parameter('omb_listenee_homepage', $profile->homepage);
- }
- if (!is_null($profile->bio)) {
- $req->set_parameter('omb_listenee_bio', $profile->bio);
- }
- if (!is_null($profile->location)) {
- $req->set_parameter('omb_listenee_location', $profile->location);
- }
- $avatar = $profile->getAvatar(AVATAR_PROFILE_SIZE);
- if ($avatar) {
- $req->set_parameter('omb_listenee_avatar', $avatar->url);
- }
-
- # XXX: add a nonce to prevent replay attacks
-
- $req->set_parameter('oauth_callback', common_local_url('finishremotesubscribe'));
-
- # XXX: test to see if endpoint accepts this signature method
-
- $req->sign_request(omb_hmac_sha1(), $con, $tok);
-
- # store all our info here
-
- $omb['listenee'] = $user->nickname;
- $omb['listener'] = omb_local_id($omb[OAUTH_ENDPOINT_REQUEST]);
- $omb['token'] = $token;
- $omb['secret'] = $secret;
- # call doesn't work after bounce back so we cache; maybe serialization issue...?
- $omb['access_token_url'] = omb_service_uri($omb[OAUTH_ENDPOINT_ACCESS]);
- $omb['post_notice_url'] = omb_service_uri($omb[OMB_ENDPOINT_POSTNOTICE]);
- $omb['update_profile_url'] = omb_service_uri($omb[OMB_ENDPOINT_UPDATEPROFILE]);
+ $target_url = $service->requestAuthorization(
+ profile_to_omb_profile($user->uri, $profile),
+ common_local_url('finishremotesubscribe'));
common_ensure_session();
- $_SESSION['oauth_authorization_request'] = $omb;
-
- # Redirect to authorization service
+ $_SESSION['oauth_authorization_request'] = serialize($service);
- common_redirect($req->to_url(), 303);
- return;
+ /* Redirect to the remote service for authorization. */
+ common_redirect($target_url, 303);
}
}
+?>
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-18 04:51:32 +0000