255 lines
7.1 KiB
PHP
255 lines
7.1 KiB
PHP
<?php
|
|
/*
|
|
* Laconica - a distributed open-source microblogging tool
|
|
* Copyright (C) 2008, Controlez-Vous, 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/>.
|
|
*/
|
|
|
|
if (!defined('LACONICA')) { exit(1); }
|
|
|
|
require_once(INSTALLDIR.'/lib/omb.php');
|
|
require_once('Auth/Yadis/Yadis.php');
|
|
|
|
class RemotesubscribeAction extends Action {
|
|
|
|
function handle($args) {
|
|
|
|
parent::handle($args);
|
|
|
|
if (common_logged_in()) {
|
|
common_user_error(_t('You can use the local subscription!'));
|
|
return;
|
|
}
|
|
|
|
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
|
|
$this->remote_subscription();
|
|
} else {
|
|
$this->show_form();
|
|
}
|
|
}
|
|
|
|
function show_form($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();
|
|
}
|
|
|
|
function remote_subscription() {
|
|
$user = $this->get_user();
|
|
|
|
if (!$user) {
|
|
$this->show_form(_t('No such user!'));
|
|
return;
|
|
}
|
|
|
|
$profile = $this->trimmed('profile');
|
|
|
|
if (!$profile) {
|
|
$this->show_form(_t('No such user!'));
|
|
return;
|
|
}
|
|
|
|
if (!Validate::uri($profile, array('allowed_schemes' => array('http', 'https')))) {
|
|
$this->show_form(_t('Invalid profile URL (bad format)'));
|
|
return;
|
|
}
|
|
|
|
$fetcher = Auth_Yadis_Yadis::getHTTPFetcher();
|
|
$yadis = Auth_Yadis_Yadis::discover($profile, $fetcher);
|
|
|
|
if (!$yadis || $yadis->fail) {
|
|
$this->show_form(_t('Not a valid profile URL (no YADIS document).'));
|
|
return;
|
|
}
|
|
|
|
$omb = $this->getOmb($yadis);
|
|
|
|
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 $user;
|
|
}
|
|
|
|
function getOmb($yadis) {
|
|
static $endpoints = array(OMB_ENDPOINT_UPDATEPROFILE, OMB_ENDPOINT_POSTNOTICE,
|
|
OAUTH_ENDPOINT_REQUEST, OAUTH_ENDPOINT_AUTHORIZE,
|
|
OAUTH_ENDPOINT_ACCESS);
|
|
$omb = array();
|
|
$services = $yadis->services(); # ordered by priority
|
|
if (!$services) {
|
|
return NULL;
|
|
}
|
|
|
|
foreach ($services as $service) {
|
|
$types = $service->matchTypes($endpoints);
|
|
foreach ($types as $type) {
|
|
# We take the first one, since it's the highest priority
|
|
if (!array_key_exists($type, $omb)) {
|
|
# URIs is an array, priority-ordered
|
|
$omb[$type] = $service->getURIs();
|
|
# Special handling for request
|
|
if ($type == OAUTH_ENDPOINT_REQUEST) {
|
|
$nodes = $service->getElements('LocalID');
|
|
if (!$nodes) {
|
|
# error
|
|
return NULL;
|
|
}
|
|
$omb['listener'] = $service->parser->content($nodes[0]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
foreach ($endpoints as $ep) {
|
|
if (!array_key_exists($ep, $omb)) {
|
|
return NULL;
|
|
}
|
|
}
|
|
if (!array_key_exists('listener', $omb)) {
|
|
return NULL;
|
|
}
|
|
return $omb;
|
|
}
|
|
|
|
function request_token($omb) {
|
|
$con = omb_oauth_consumer();
|
|
|
|
$url = $omb[OAUTH_ENDPOINT_REQUEST][0];
|
|
|
|
# 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);
|
|
|
|
$req->set_parameter('omb_listener', $omb['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[OAUTH_ENDPOINT_AUTHORIZE][0];
|
|
|
|
# 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['listener']);
|
|
$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);
|
|
}
|
|
|
|
$nonce = $this->make_nonce();
|
|
|
|
$req->set_parameter('oauth_callback', common_local_url('finishremotesubscribe',
|
|
array('nonce' => $nonce)));
|
|
|
|
# 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;
|
|
|
|
$_SESSION[$nonce] = $omb;
|
|
|
|
# Redirect to authorization service
|
|
|
|
common_redirect($req->to_url());
|
|
return;
|
|
}
|
|
} |