<?php
/*
* Laconica - a distributed open-source microblogging tool
- * Copyright (C) 2008, Controlez-Vous, Inc.
+ * Copyright (C) 2008, 2009, Control Yourself, 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
require_once(INSTALLDIR.'/lib/omb.php');
-class RemotesubscribeAction extends Action {
-
- function handle($args) {
-
- parent::handle($args);
+class RemotesubscribeAction extends Action
+{
+ var $nickname;
+ var $profile_url;
+ 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->profile_url = $this->trimmed('profile_url');
+
+ return true;
+ }
+
+ function handle($args)
+ {
+ parent::handle($args);
+
+ if ($_SERVER['REQUEST_METHOD'] == 'POST') {
+ # 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->remoteSubscription();
+ } else {
+ $this->showForm();
+ }
+ }
+
+ function showForm($err=null)
+ {
+ $this->err = $err;
+ $this->showPage();
+ }
+
+ function showPageNotice()
+ {
+ if ($this->err) {
+ $this->element('div', 'error', $this->err);
+ } else {
+ $inst = _('To subscribe, you can [login](%%action.login%%),' .
+ ' or [register](%%action.register%%) a new ' .
+ ' account. If you already have an account ' .
+ ' on a [compatible microblogging site](%%doc.openmublog%%), ' .
+ ' enter your profile URL below.');
+ $output = common_markup_to_html($inst);
+ $this->elementStart('div', 'instructions');
+ $this->raw($output);
+ $this->elementEnd('div');
+ }
+ }
+
+ function title()
+ {
+ return _('Remote subscribe');
+ }
+
+ function showContent()
+ {
+ # id = remotesubscribe conflicts with the
+ # button on profile page
+ $this->elementStart('form', array('id' => 'form_remote_subscribe',
+ 'method' => 'post',
+ 'class' => 'form_settings',
+ 'action' => common_local_url('remotesubscribe')));
+ $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('profile_url', _('Profile URL'), $this->profile_url,
+ _('URL of your profile on another compatible microblogging service'));
+ $this->elementEnd('li');
+ $this->elementEnd('ul');
+ $this->submit('submit', _('Subscribe'));
+ $this->elementEnd('fieldset');
+ $this->elementEnd('form');
+ }
+
+ function remoteSubscription()
+ {
+ $user = $this->getUser();
+
+ if (!$user) {
+ $this->showForm(_('No such user.'));
+ return;
+ }
+
+ $this->profile_url = $this->trimmed('profile_url');
+
+ if (!$this->profile_url) {
+ $this->showForm(_('No such user.'));
+ return;
+ }
+
+ if (!Validate::uri($this->profile_url, array('allowed_schemes' => array('http', 'https')))) {
+ $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'))
+ {
+ $this->showForm(_('That\'s a local profile! Login to subscribe.'));
+ return;
+ }
+
+ if (User::staticGet('uri', omb_local_id($omb[OAUTH_ENDPOINT_REQUEST]))) {
+ $this->showForm(_('That\'s a local profile! Login to subscribe.'));
+ return;
+ }
+
+ list($token, $secret) = $this->requestToken($omb);
+
+ if (!$token || !$secret) {
+ $this->showForm(_('Couldn\'t get a request token.'));
+ 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, $omb)) {
+ return null;
+ }
- if (common_logged_in()) {
- common_user_error(_t('You can use the local subscription!'));
- return;
- }
+ # XXX: check that we got all the services we needed
- if ($_SERVER['REQUEST_METHOD'] == 'POST') {
- $this->remote_subscription();
- } else {
- $this->show_form();
- }
- }
+ foreach (array_merge($omb_endpoints, $oauth_endpoints) as $type) {
+ if (!array_key_exists($type, $omb) || !$omb[$type]) {
+ return null;
+ }
+ }
- function show_form($err=NULL) {
- $nickname = $this->trimmed('nickname');
- common_show_header(_t('Remote subscribe'));
- if ($err) {
- common_element('div', 'error', $err);
- }
- common_element_start('form', array('id' => 'remotesubscribe', 'method' => 'POST',
- 'action' => common_local_url('remotesubscribe')));
- common_input('nickname', _t('User nickname'), $nickname);
- common_input('profile', _t('Profile URL'));
- common_submit('submit', _t('Subscribe'));
- common_element_end('form');
- common_show_footer();
- }
+ if (!omb_local_id($omb[OAUTH_ENDPOINT_REQUEST])) {
+ return null;
+ }
- function remote_subscription() {
- $user = $this->get_user();
+ return $omb;
+ }
- if (!$user) {
- $this->show_form(_t('No such user!'));
- return;
- }
+ function getXRD($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'));
+
+ $profile = $user->getProfile();
+ if (!$profile) {
+ common_log_db_error($user, 'SELECT', __FILE__);
+ $this->serverError(_('User without matching profile'));
+ return;
+ }
+
+ if (!is_null($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);
+ }
- $profile = $this->trimmed('profile');
+ # XXX: add a nonce to prevent replay attacks
- if (!$profile) {
- $this->show_form(_t('No such user!'));
- return;
- }
+ $req->set_parameter('oauth_callback', common_local_url('finishremotesubscribe'));
- if (!Validate::uri($profile, array('allowed_schemes' => array('http', 'https')))) {
- $this->show_form(_t('Invalid profile URL (bad format)'));
- return;
- }
+ # XXX: test to see if endpoint accepts this signature method
- $fetcher = Auth_Yadis_Yadis::getHTTPFetcher();
- $yadis = Auth_Yadis_Yadis::discover($profile, $fetcher);
+ $req->sign_request(omb_hmac_sha1(), $con, $tok);
- if (!$yadis || $yadis->failed) {
- $this->show_form(_t('Not a valid profile URL (no YADIS document).'));
- return;
- }
+ # store all our info here
- $xrds =& Auth_Yadis_XRDS::parseXRDS($yadis->response_text);
+ $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]);
- if (!$xrds) {
- $this->show_form(_t('Not a valid profile URL (no XRDS defined).'));
- return;
- }
-
- $omb = $this->getOmb($xrds);
-
- if (!$omb) {
- $this->show_form(_t('Not a valid profile URL (incorrect services).'));
- return;
- }
-
- list($token, $secret) = $this->request_token($omb);
-
- if (!$token || !$secret) {
- $this->show_form(_t('Couldn\'t get a request token.'));
- return;
- }
-
- $this->request_authorization($user, $omb, $token, $secret);
- }
-
- function get_user() {
- $user = NULL;
- $nickname = $this->trimmed('nickname');
- if ($nickname) {
- $user = User::staticGet('nickname', $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;
- }
+ common_ensure_session();
- $omb_service = $omb_services[0];
+ $_SESSION['oauth_authorization_request'] = $omb;
- $omb_xrd = $this->getXRD($omb_service, $xrds);
+ # Redirect to authorization service
- if (!$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] = $matches[0];
- } else {
- # no match for type
- return false;
- }
- }
- return true;
- }
-
- function request_token($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(),
- $req->to_postdata());
-
- if ($result->status != 200) {
- return NULL;
- }
-
- parse_str($result->body, $return);
-
- return array($return['oauth_token'], $return['oauth_token_secret']);
- }
-
- function request_authorization($user, $omb, $token, $secret) {
- global $config; # for license URL
-
- $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', $config['license']['url']);
- $profile = $user->getProfile();
- if ($profile->fullname) {
- $req->set_parameter('omb_listenee_fullname', $profile->fullname);
- }
- if ($profile->homepage) {
- $req->set_parameter('omb_listenee_homepage', $profile->homepage);
- }
- if ($profile->bio) {
- $req->set_parameter('omb_listenee_bio', $profile->bio);
- }
- if ($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['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]);
-
- $_SESSION['oauth_authorization_request'] = $omb;
-
- # Redirect to authorization service
-
- common_redirect($req->to_url());
- return;
- }
-
- function make_nonce() {
- return common_good_rand(16);
- }
-}
\ No newline at end of file
+ common_redirect($req->to_url(), 303);
+ return;
+ }
+}
projects / quix0rs-gnu-social.git / blobdiff