- common_debug('stored request: '.print_r($omb,true), __FILE__);
-
- $req = OAuthRequest::from_request();
-
- $token = $req->get_parameter('oauth_token');
-
- # I think this is the success metric
-
- if ($token != $omb['token']) {
- common_user_error(_('Not authorized.'));
- return;
- }
-
- $version = $req->get_parameter('omb_version');
-
- if ($version != OMB_VERSION_01) {
- common_user_error(_('Unknown version of OMB protocol.'));
- return;
- }
-
- $nickname = $req->get_parameter('omb_listener_nickname');
-
- if (!$nickname) {
- common_user_error(_('No nickname provided by remote server.'));
- return;
- }
-
- $profile_url = $req->get_parameter('omb_listener_profile');
-
- if (!$profile_url) {
- common_user_error(_('No profile URL returned by server.'));
- return;
- }
-
- if (!Validate::uri($profile_url, array('allowed_schemes' => array('http', 'https')))) {
- common_user_error(_('Invalid profile URL returned by server.'));
- return;
- }
-
- common_debug('listenee: "'.$omb['listenee'].'"', __FILE__);
-
- $user = User::staticGet('nickname', $omb['listenee']);
-
- if (!$user) {
- common_user_error(_('User being listened to doesn\'t exist.'));
- return;
- }
-
- $fullname = $req->get_parameter('omb_listener_fullname');
- $homepage = $req->get_parameter('omb_listener_homepage');
- $bio = $req->get_parameter('omb_listener_bio');
- $location = $req->get_parameter('omb_listener_location');
- $avatar_url = $req->get_parameter('omb_listener_avatar');
-
- list($newtok, $newsecret) = $this->access_token($omb);
-
- if (!$newtok || !$newsecret) {
- common_user_error(_('Couldn\'t convert request tokens to access tokens.'));
- return;
- }
-
- # XXX: possible attack point; subscribe and return someone else's profile URI
-
- $remote = Remote_profile::staticGet('uri', $omb['listener']);
-
- if ($remote) {
- $exists = true;
- $profile = Profile::staticGet($remote->id);
- $orig_remote = clone($remote);
- $orig_profile = clone($profile);
- # XXX: compare current postNotice and updateProfile URLs to the ones
- # stored in the DB to avoid (possibly...) above attack
- } else {
- $exists = false;
- $remote = new Remote_profile();
- $remote->uri = $omb['listener'];
- $profile = new Profile();
- }
-
- $profile->nickname = $nickname;
- $profile->profileurl = $profile_url;
-
- if ($fullname) {
- $profile->fullname = $fullname;
- }
- if ($homepage) {
- $profile->homepage = $homepage;
- }
- if ($bio) {
- $profile->bio = $bio;
- }
- if ($location) {
- $profile->location = $location;
- }
-
- if ($exists) {
- $profile->update($orig_profile);
- } else {
- $profile->created = DB_DataObject_Cast::dateTime(); # current time
- $id = $profile->insert();
- if (!$id) {
- common_server_error(_('Error inserting new profile'));
- return;
- }
- $remote->id = $id;
- }
-
- if ($avatar_url) {
- if (!$this->add_avatar($profile, $avatar_url)) {
- common_server_error(_('Error inserting avatar'));
- return;
- }
- }
-
- $remote->postnoticeurl = $omb['post_notice_url'];
- $remote->updateprofileurl = $omb['update_profile_url'];
-
- if ($exists) {
- if (!$remote->update($orig_remote)) {
- common_server_error(_('Error updating remote profile'));
- return;
- }
- } else {
- $remote->created = DB_DataObject_Cast::dateTime(); # current time
- if (!$remote->insert()) {
- common_server_error(_('Error inserting remote profile'));
- return;
- }
- }
-
- $sub = new Subscription();
- $sub->subscriber = $remote->id;
- $sub->subscribed = $user->id;
- $sub->token = $newtok;
- $sub->secret = $newsecret;
- $sub->created = DB_DataObject_Cast::dateTime(); # current time
-
- if (!$sub->insert()) {
- common_user_error(_('Couldn\'t insert new subscription.'));
- return;
- }
-
- # Notify user, if necessary
-
- mail_subscribe_notify_profile($user, $profile);
-
- # Clear the data
- unset($_SESSION['oauth_authorization_request']);
-
- # If we show subscriptions in reverse chron order, this should
- # show up close to the top of the page
-
- common_redirect(common_local_url('subscribers', array('nickname' =>
- $user->nickname)));
- }
-
- function add_avatar($profile, $url) {
- $temp_filename = tempnam(sys_get_temp_dir(), 'listener_avatar');
- copy($url, $temp_filename);
- return $profile->setOriginal($temp_filename);
- }
-
- function access_token($omb) {
-
- common_debug('starting request for access token', __FILE__);
-
- $con = omb_oauth_consumer();
- $tok = new OAuthToken($omb['token'], $omb['secret']);
-
- common_debug('using request token "'.$tok.'"', __FILE__);
-
- $url = $omb['access_token_url'];
-
- common_debug('using access token url "'.$url.'"', __FILE__);
-
- # 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, "POST", $url, $params);
-
- $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, $tok);
-
- # We re-use this tool's fetcher, since it's pretty good