if (!defined('LACONICA')) { exit(1); }
+require_once(INSTALLDIR.'/lib/omb.php');
+define('TIMESTAMP_THRESHOLD', 300);
+
class UserauthorizationAction extends Action {
- function handle($args) {
- parent::handle($args);
-
- if ($_SERVER['REQUEST_METHOD'] == 'POST') {
- $this->send_authorization();
- } else {
- try {
- $req = $this->get_request();
- $server = common_oauth_server();
- list($consumer, $token) = $server->verify_request($req);
- } catch (OAuthException $e) {
- $this->clear_request();
- common_server_error($e->getMessage());
- return;
- }
-
- if (common_logged_in()) {
- $this->show_form($req);
- } else {
- common_return_to(common_local_url('userauthorization'));
- common_redirect(common_local_url('login'));
- }
- }
- }
-
- function store_request($req) {
- common_ensure_session();
- $_SESSION['userauthorizationrequest'] = $req;
- }
-
- function get_request() {
- common_ensure_session();
- $req = $_SESSION['userauthorizationrequest'];
- if (!$req) {
- # XXX: may have an uncaught exception
- $req = OAuthRequest::from_request();
- $this->store_request($req);
- }
- return $req;
- }
-
- function show_form($req) {
- common_show_header(_t('Authorize subscription'));
-
- common_show_footer();
- }
-
- function send_authorization() {
- $req = $this->get_request();
- if (!$req) {
- common_user_error(_t('No authorization request!'));
- return;
- }
-
- if ($this->boolean('authorize')) {
-
- }
- }
+
+ function handle($args) {
+ parent::handle($args);
+
+ if ($_SERVER['REQUEST_METHOD'] == 'POST') {
+ # CSRF protection
+ $token = $this->trimmed('token');
+ if (!$token || $token != common_session_token()) {
+ $req = $this->get_stored_request();
+ $this->show_form(_('There was a problem with your session token. Try again, please.'), $req);
+ return;
+ }
+ # We've shown the form, now post user's choice
+ $this->send_authorization();
+ } else {
+ if (!common_logged_in()) {
+ # Go log in, and then come back
+ common_debug('saving URL for returnto', __FILE__);
+ common_set_returnto($_SERVER['REQUEST_URI']);
+
+ common_debug('redirecting to login', __FILE__);
+ common_redirect(common_local_url('login'));
+ return;
+ }
+ try {
+ # this must be a new request
+ common_debug('getting new request', __FILE__);
+ $req = $this->get_new_request();
+ if (!$req) {
+ $this->client_error(_('No request found!'));
+ }
+ common_debug('validating request', __FILE__);
+ # XXX: only validate new requests, since nonce is one-time use
+ $this->validate_request($req);
+ common_debug('showing form', __FILE__);
+ $this->store_request($req);
+ $this->show_form($req);
+ } catch (OAuthException $e) {
+ $this->clear_request();
+ $this->client_error($e->getMessage());
+ return;
+ }
+
+ }
+ }
+
+ function show_form($req) {
+
+ $nickname = $req->get_parameter('omb_listenee_nickname');
+ $profile = $req->get_parameter('omb_listenee_profile');
+ $license = $req->get_parameter('omb_listenee_license');
+ $fullname = $req->get_parameter('omb_listenee_fullname');
+ $homepage = $req->get_parameter('omb_listenee_homepage');
+ $bio = $req->get_parameter('omb_listenee_bio');
+ $location = $req->get_parameter('omb_listenee_location');
+ $avatar = $req->get_parameter('omb_listenee_avatar');
+
+ common_show_header(_('Authorize subscription'));
+ common_element('p', null, _('Please check these details to make sure '.
+ 'that you want to subscribe to this user\'s notices. '.
+ 'If you didn\'t just ask to subscribe to someone\'s notices, '.
+ 'click "Cancel".'));
+ common_element_start('div', 'profile');
+ if ($avatar) {
+ common_element('img', array('src' => $avatar,
+ 'class' => 'avatar profile',
+ 'width' => AVATAR_PROFILE_SIZE,
+ 'height' => AVATAR_PROFILE_SIZE,
+ 'alt' => $nickname));
+ }
+ common_element('a', array('href' => $profile,
+ 'class' => 'external profile nickname'),
+ $nickname);
+ if ($fullname) {
+ common_element_start('div', 'fullname');
+ if ($homepage) {
+ common_element('a', array('href' => $homepage),
+ $fullname);
+ } else {
+ common_text($fullname);
+ }
+ common_element_end('div');
+ }
+ if ($location) {
+ common_element('div', 'location', $location);
+ }
+ if ($bio) {
+ common_element('div', 'bio', $bio);
+ }
+ common_element_start('div', 'license');
+ common_element('a', array('href' => $license,
+ 'class' => 'license'),
+ $license);
+ common_element_end('div');
+ common_element_end('div');
+ common_element_start('form', array('method' => 'post',
+ 'id' => 'userauthorization',
+ 'name' => 'userauthorization',
+ 'action' => common_local_url('userauthorization')));
+ common_hidden('token', common_session_token());
+ common_submit('accept', _('Accept'));
+ common_submit('reject', _('Reject'));
+ common_element_end('form');
+ common_show_footer();
+ }
+
+ function send_authorization() {
+ $req = $this->get_stored_request();
+
+ if (!$req) {
+ common_user_error(_('No authorization request!'));
+ return;
+ }
+
+ $callback = $req->get_parameter('oauth_callback');
+
+ if ($this->arg('accept')) {
+ if (!$this->authorize_token($req)) {
+ $this->client_error(_('Error authorizing token'));
+ }
+ if (!$this->save_remote_profile($req)) {
+ $this->client_error(_('Error saving remote profile'));
+ }
+ if (!$callback) {
+ $this->show_accept_message($req->get_parameter('oauth_token'));
+ } else {
+ $params = array();
+ $params['oauth_token'] = $req->get_parameter('oauth_token');
+ $params['omb_version'] = OMB_VERSION_01;
+ $user = User::staticGet('uri', $req->get_parameter('omb_listener'));
+ $profile = $user->getProfile();
+ if (!$profile) {
+ common_log_db_error($user, 'SELECT', __FILE__);
+ $this->server_error(_('User without matching profile'));
+ return;
+ }
+ $params['omb_listener_nickname'] = $user->nickname;
+ $params['omb_listener_profile'] = common_local_url('showstream',
+ array('nickname' => $user->nickname));
+ if ($profile->fullname) {
+ $params['omb_listener_fullname'] = $profile->fullname;
+ }
+ if ($profile->homepage) {
+ $params['omb_listener_homepage'] = $profile->homepage;
+ }
+ if ($profile->bio) {
+ $params['omb_listener_bio'] = $profile->bio;
+ }
+ if ($profile->location) {
+ $params['omb_listener_location'] = $profile->location;
+ }
+ $avatar = $profile->getAvatar(AVATAR_PROFILE_SIZE);
+ if ($avatar) {
+ $params['omb_listener_avatar'] = $avatar->url;
+ }
+ $parts = array();
+ foreach ($params as $k => $v) {
+ $parts[] = $k . '=' . OAuthUtil::urlencodeRFC3986($v);
+ }
+ $query_string = implode('&', $parts);
+ $parsed = parse_url($callback);
+ $url = $callback . (($parsed['query']) ? '&' : '?') . $query_string;
+ common_redirect($url, 303);
+ }
+ } else {
+ if (!$callback) {
+ $this->show_reject_message();
+ } else {
+ # XXX: not 100% sure how to signal failure... just redirect without token?
+ common_redirect($callback, 303);
+ }
+ }
+ }
+
+ function authorize_token(&$req) {
+ $consumer_key = $req->get_parameter('oauth_consumer_key');
+ $token_field = $req->get_parameter('oauth_token');
+ common_debug('consumer key = "'.$consumer_key.'"', __FILE__);
+ common_debug('token field = "'.$token_field.'"', __FILE__);
+ $rt = new Token();
+ $rt->consumer_key = $consumer_key;
+ $rt->tok = $token_field;
+ $rt->type = 0;
+ $rt->state = 0;
+ common_debug('request token to look up: "'.print_r($rt,TRUE).'"');
+ if ($rt->find(true)) {
+ common_debug('found request token to authorize', __FILE__);
+ $orig_rt = clone($rt);
+ $rt->state = 1; # Authorized but not used
+ if ($rt->update($orig_rt)) {
+ common_debug('updated request token so it is authorized', __FILE__);
+ return true;
+ }
+ }
+ return FALSE;
+ }
+
+ # XXX: refactor with similar code in finishremotesubscribe.php
+
+ function save_remote_profile(&$req) {
+ # FIXME: we should really do this when the consumer comes
+ # back for an access token. If they never do, we've got stuff in a
+ # weird state.
+
+ $nickname = $req->get_parameter('omb_listenee_nickname');
+ $fullname = $req->get_parameter('omb_listenee_fullname');
+ $profile_url = $req->get_parameter('omb_listenee_profile');
+ $homepage = $req->get_parameter('omb_listenee_homepage');
+ $bio = $req->get_parameter('omb_listenee_bio');
+ $location = $req->get_parameter('omb_listenee_location');
+ $avatar_url = $req->get_parameter('omb_listenee_avatar');
+
+ $listenee = $req->get_parameter('omb_listenee');
+ $remote = Remote_profile::staticGet('uri', $listenee);
+
+ if ($remote) {
+ $exists = true;
+ $profile = Profile::staticGet($remote->id);
+ $orig_remote = clone($remote);
+ $orig_profile = clone($profile);
+ } else {
+ $exists = false;
+ $remote = new Remote_profile();
+ $remote->uri = $listenee;
+ $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) {
+ return FALSE;
+ }
+ $remote->id = $id;
+ }
+
+ if ($exists) {
+ if (!$remote->update($orig_remote)) {
+ return FALSE;
+ }
+ } else {
+ $remote->created = DB_DataObject_Cast::dateTime(); # current time
+ if (!$remote->insert()) {
+ return FALSE;
+ }
+ }
+
+ if ($avatar_url) {
+ if (!$this->add_avatar($profile, $avatar_url)) {
+ return FALSE;
+ }
+ }
+
+ $user = common_current_user();
+ $datastore = omb_oauth_datastore();
+ $consumer = $this->get_consumer($datastore, $req);
+ $token = $this->get_token($datastore, $req, $consumer);
+
+ $sub = new Subscription();
+ $sub->subscriber = $user->id;
+ $sub->subscribed = $remote->id;
+ $sub->token = $token->key; # NOTE: request token, not valid for use!
+ $sub->created = DB_DataObject_Cast::dateTime(); # current time
+
+ if (!$sub->insert()) {
+ return FALSE;
+ }
+
+ return TRUE;
+ }
+
+ function add_avatar($profile, $url) {
+ $temp_filename = tempnam(sys_get_temp_dir(), 'listenee_avatar');
+ copy($url, $temp_filename);
+ return $profile->setOriginal($temp_filename);
+ }
+
+ function show_accept_message($tok) {
+ common_show_header(_('Subscription authorized'));
+ common_element('p', null,
+ _('The subscription has been authorized, but no '.
+ 'callback URL was passed. Check with the site\'s instructions for '.
+ 'details on how to authorize the subscription. Your subscription token is:'));
+ common_element('blockquote', 'token', $tok);
+ common_show_footer();
+ }
+
+ function show_reject_message($tok) {
+ common_show_header(_('Subscription rejected'));
+ common_element('p', null,
+ _('The subscription has been rejected, but no '.
+ 'callback URL was passed. Check with the site\'s instructions for '.
+ 'details on how to fully reject the subscription.'));
+ common_show_footer();
+ }
+
+ function store_request($req) {
+ common_ensure_session();
+ $_SESSION['userauthorizationrequest'] = $req;
+ }
+
+ function clear_request() {
+ common_ensure_session();
+ unset($_SESSION['userauthorizationrequest']);
+ }
+
+ function get_stored_request() {
+ common_ensure_session();
+ $req = $_SESSION['userauthorizationrequest'];
+ return $req;
+ }
+
+ function get_new_request() {
+ common_remove_magic_from_request();
+ $req = OAuthRequest::from_request();
+ return $req;
+ }
+
+ # Throws an OAuthException if anything goes wrong
+
+ function validate_request(&$req) {
+ # OAuth stuff -- have to copy from OAuth.php since they're
+ # all private methods, and there's no user-authentication method
+ common_debug('checking version', __FILE__);
+ $this->check_version($req);
+ common_debug('getting datastore', __FILE__);
+ $datastore = omb_oauth_datastore();
+ common_debug('getting consumer', __FILE__);
+ $consumer = $this->get_consumer($datastore, $req);
+ common_debug('getting token', __FILE__);
+ $token = $this->get_token($datastore, $req, $consumer);
+ common_debug('checking timestamp', __FILE__);
+ $this->check_timestamp($req);
+ common_debug('checking nonce', __FILE__);
+ $this->check_nonce($datastore, $req, $consumer, $token);
+ common_debug('checking signature', __FILE__);
+ $this->check_signature($req, $consumer, $token);
+ common_debug('validating omb stuff', __FILE__);
+ $this->validate_omb($req);
+ common_debug('done validating', __FILE__);
+ return true;
+ }
+
+ function validate_omb(&$req) {
+ foreach (array('omb_version', 'omb_listener', 'omb_listenee',
+ 'omb_listenee_profile', 'omb_listenee_nickname',
+ 'omb_listenee_license') as $param)
+ {
+ if (!$req->get_parameter($param)) {
+ throw new OAuthException("Required parameter '$param' not found");
+ }
+ }
+ # Now, OMB stuff
+ $version = $req->get_parameter('omb_version');
+ if ($version != OMB_VERSION_01) {
+ throw new OAuthException("OpenMicroBlogging version '$version' not supported");
+ }
+ $listener = $req->get_parameter('omb_listener');
+ $user = User::staticGet('uri', $listener);
+ if (!$user) {
+ throw new OAuthException("Listener URI '$listener' not found here");
+ }
+ $cur = common_current_user();
+ if ($cur->id != $user->id) {
+ throw new OAuthException("Can't add for another user!");
+ }
+ $listenee = $req->get_parameter('omb_listenee');
+ if (!Validate::uri($listenee) &&
+ !common_valid_tag($listenee)) {
+ throw new OAuthException("Listenee URI '$listenee' not a recognizable URI");
+ }
+ if (strlen($listenee) > 255) {
+ throw new OAuthException("Listenee URI '$listenee' too long");
+ }
+
+ $other = User::staticGet('uri', $listenee);
+ if ($other) {
+ throw new OAuthException("Listenee URI '$listenee' is local user");
+ }
+
+ $remote = Remote_profile::staticGet('uri', $listenee);
+ if ($remote) {
+ $sub = new Subscription();
+ $sub->subscriber = $user->id;
+ $sub->subscribed = $remote->id;
+ if ($sub->find(TRUE)) {
+ throw new OAuthException("Already subscribed to user!");
+ }
+ }
+ $nickname = $req->get_parameter('omb_listenee_nickname');
+ if (!Validate::string($nickname, array('min_length' => 1,
+ 'max_length' => 64,
+ 'format' => VALIDATE_NUM . VALIDATE_ALPHA_LOWER))) {
+ throw new OAuthException('Nickname must have only letters and numbers and no spaces.');
+ }
+ $profile = $req->get_parameter('omb_listenee_profile');
+ if (!common_valid_http_url($profile)) {
+ throw new OAuthException("Invalid profile URL '$profile'.");
+ }
+
+ if ($profile == common_local_url('showstream', array('nickname' => $nickname))) {
+ throw new OAuthException("Profile URL '$profile' is for a local user.");
+ }
+
+ $license = $req->get_parameter('omb_listenee_license');
+ if (!common_valid_http_url($license)) {
+ throw new OAuthException("Invalid license URL '$license'.");
+ }
+ $site_license = common_config('license', 'url');
+ if (!common_compatible_license($license, $site_license)) {
+ throw new OAuthException("Listenee stream license '$license' not compatible with site license '$site_license'.");
+ }
+ # optional stuff
+ $fullname = $req->get_parameter('omb_listenee_fullname');
+ if ($fullname && strlen($fullname) > 255) {
+ throw new OAuthException("Full name '$fullname' too long.");
+ }
+ $homepage = $req->get_parameter('omb_listenee_homepage');
+ if ($homepage && (!common_valid_http_url($homepage) || strlen($homepage) > 255)) {
+ throw new OAuthException("Invalid homepage '$homepage'");
+ }
+ $bio = $req->get_parameter('omb_listenee_bio');
+ if ($bio && strlen($bio) > 140) {
+ throw new OAuthException("Bio too long '$bio'");
+ }
+ $location = $req->get_parameter('omb_listenee_location');
+ if ($location && strlen($location) > 255) {
+ throw new OAuthException("Location too long '$location'");
+ }
+ $avatar = $req->get_parameter('omb_listenee_avatar');
+ if ($avatar) {
+ if (!common_valid_http_url($avatar) || strlen($avatar) > 255) {
+ throw new OAuthException("Invalid avatar URL '$avatar'");
+ }
+ $size = @getimagesize($avatar);
+ if (!$size) {
+ throw new OAuthException("Can't read avatar URL '$avatar'");
+ }
+ if ($size[0] != AVATAR_PROFILE_SIZE || $size[1] != AVATAR_PROFILE_SIZE) {
+ throw new OAuthException("Wrong size image at '$avatar'");
+ }
+ if (!in_array($size[2], array(IMAGETYPE_GIF, IMAGETYPE_JPEG,
+ IMAGETYPE_PNG))) {
+ throw new OAuthException("Wrong image type for '$avatar'");
+ }
+ }
+ $callback = $req->get_parameter('oauth_callback');
+ if ($callback && !common_valid_http_url($callback)) {
+ throw new OAuthException("Invalid callback URL '$callback'");
+ }
+ if ($callback && $callback == common_local_url('finishremotesubscribe')) {
+ throw new OAuthException("Callback URL '$callback' is for local site.");
+ }
+ }
+
+ # Snagged from OAuthServer
+
+ function check_version(&$req) {
+ $version = $req->get_parameter("oauth_version");
+ if (!$version) {
+ $version = 1.0;
+ }
+ if ($version != 1.0) {
+ throw new OAuthException("OAuth version '$version' not supported");
+ }
+ return $version;
+ }
+
+ # Snagged from OAuthServer
+
+ function get_consumer($datastore, $req) {
+ $consumer_key = @$req->get_parameter("oauth_consumer_key");
+ if (!$consumer_key) {
+ throw new OAuthException("Invalid consumer key");
+ }
+
+ $consumer = $datastore->lookup_consumer($consumer_key);
+ if (!$consumer) {
+ throw new OAuthException("Invalid consumer");
+ }
+ return $consumer;
+ }
+
+ # Mostly cadged from OAuthServer
+
+ function get_token($datastore, &$req, $consumer) {/*{{{*/
+ $token_field = @$req->get_parameter('oauth_token');
+ $token = $datastore->lookup_token($consumer, 'request', $token_field);
+ if (!$token) {
+ throw new OAuthException("Invalid $token_type token: $token_field");
+ }
+ return $token;
+ }
+
+ function check_timestamp(&$req) {
+ $timestamp = @$req->get_parameter('oauth_timestamp');
+ $now = time();
+ if ($now - $timestamp > TIMESTAMP_THRESHOLD) {
+ throw new OAuthException("Expired timestamp, yours $timestamp, ours $now");
+ }
+ }
+
+ # NOTE: don't call twice on the same request; will fail!
+ function check_nonce(&$datastore, &$req, $consumer, $token) {
+ $timestamp = @$req->get_parameter('oauth_timestamp');
+ $nonce = @$req->get_parameter('oauth_nonce');
+ $found = $datastore->lookup_nonce($consumer, $token, $nonce, $timestamp);
+ if ($found) {
+ throw new OAuthException("Nonce already used");
+ }
+ return true;
+ }
+
+ function check_signature(&$req, $consumer, $token) {
+ $signature_method = $this->get_signature_method($req);
+ $signature = $req->get_parameter('oauth_signature');
+ $valid_sig = $signature_method->check_signature($req,
+ $consumer,
+ $token,
+ $signature);
+ if (!$valid_sig) {
+ throw new OAuthException("Invalid signature");
+ }
+ }
+
+ function get_signature_method(&$req) {
+ $signature_method = @$req->get_parameter("oauth_signature_method");
+ if (!$signature_method) {
+ $signature_method = "PLAINTEXT";
+ }
+ if ($signature_method != 'HMAC-SHA1') {
+ throw new OAuthException("Signature method '$signature_method' not supported.");
+ }
+ return omb_hmac_sha1();
+ }
}
projects / quix0rs-gnu-social.git / blobdiff