diff options
Diffstat (limited to 'actions/userauthorization.php')
| -rw-r--r-- | actions/userauthorization.php | 439 |
1 files changed, 410 insertions, 29 deletions
diff --git a/actions/userauthorization.php b/actions/userauthorization.php index aaa161b68..6a49af825 100644 --- a/actions/userauthorization.php +++ b/actions/userauthorization.php @@ -20,28 +20,29 @@ 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') { + # We've shown the form, now post user's choice $this->send_authorization(); } else { try { common_debug('userauthorization.php - fetching request'); - $req = $this->get_request(); + # We get called after login if we have a stored request + $req = $this->get_stored_request(); if (!$req) { - common_server_error(_t('Cannot find request')); + # this must be a new request + $req = $this->get_new_request(); + # XXX: only validate new requests, since nonce is one-time use + $this->validate_request($req); + } + if (!$req) { + common_server_error(_t('No request found!')); } - common_debug('userauthorization.php - $req = "'.print_r($req,TRUE).'"'); - $server = omb_oauth_server(); - common_debug('userauthorization.php - getting the consumer'); - $consumer = $server->get_consumer($req); - common_debug('userauthorization.php - $consumer = "'.print_r($consumer,TRUE).'"'); - $token = $server->get_token($req, $consumer, "request"); - common_debug('userauthorization.php - $token = "'.print_r($token,TRUE).'"'); - $server->check_signature($req, $consumer, $token); } catch (OAuthException $e) { $this->clear_request(); common_server_error($e->getMessage()); @@ -52,46 +53,426 @@ class UserauthorizationAction extends Action { $this->show_form($req); } else { # Go log in, and then come back + $this->store_request($req); common_set_returnto(common_local_url('userauthorization')); common_redirect(common_local_url('login')); } } } + + 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 = $req->get_parameter('omb_listenee_avatar'); + + common_show_header(_t('Authorize subscription')); + common_element('p', _t('Please check these details to make sure '. + 'that you want to subscribe to this user\'s notices. '. + 'If you didn\'t just ask to subscribe to someone\'s notices, '. + 'click "Cancel".')); + common_element_start('div', 'profile'); + if ($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_submit('accept', _t('Accept')); + common_submit('reject', _t('Reject')); + common_element_end('form'); + common_show_footer(); + } + + function send_authorization() { + $req = $this->get_stored_request(); + + if (!$req) { + common_user_error(_t('No authorization request!')); + return; + } + + $callback = $req->get_parameter('oauth_callback'); + + if ($this->arg('accept')) { + $this->authorize_token($req); + $this->save_remote_profile($req); + 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(); + $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'); + $rt = new Token(); + $rt->consumer_key = $consumer_key; + $rt->tok = $token_field; + if ($rt->find(TRUE)) { + $orig_rt = clone($rt); + $rt->state = 1; # Authorized but not used + if ($rt->update($orig_rt)) { + return true; + } + } + return FALSE; + } + + # XXX: refactor with similar code in finishremotesubscribe.php + + function save_remote_profile(&$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. + + $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 = $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(); + $remote->id = $id; + } + + if ($avatar_url) { + $this->add_avatar($avatar_url); + } + + if ($exists) { + $remote->update($orig_remote); + } else { + $remote->created = DB_DataObject_Cast::dateTime(); # current time + $remote->insert(); + } + + $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()) { + common_user_error(_t('Couldn\'t insert new subscription.')); + return; + } + } + + function show_accept_message($tok) { + common_show_header(_t('Subscription authorized')); + common_element('p', NULL, + _t('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(_t('Subscription rejected')); + common_element('p', NULL, + _t('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'] = $req; } - function get_request() { + function clear_request($req) { + common_ensure_session(); + unset($_SESSION['userauthorizationrequest']); + } + + function get_stored_request() { common_ensure_session(); $req = $_SESSION['userauthorizationrequest']; - if (!$req) { - # XXX: may have an uncaught exception - $req = OAuthRequest::from_request(); - if ($req) { - $this->store_request($req); - } - } return $req; } + + function get_new_request() { + $req = OAuthRequest::from_request(); + } - function show_form($req) { - common_show_header(_t('Authorize subscription')); + # 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 + $this->check_version($req); + $datastore = omb_oauth_datastore(); + $consumer = $this->get_consumer($datastore, $req); + $token = $this->get_token($datastore, $req, $consumer); + $this->check_timestamp($req); + $this->check_nonce($datastore, $req, $consumer, $token); + $this->check_signature($req, $consumer, $token); + $this->validate_omb($req); + return true; + } - common_show_footer(); + 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"); + } + $user = User::staticGet('uri', $req->get_parameter('omb_listener')); + if (!$user) { + throw new OAuthException("Listener URI '$listener' not found here"); + } + $listenee = $req->get_parameter('omb_listenee'); + if (!Validate::uri($listenee)) { + throw new OAuthException("Listenee URI '$listenee' not a valid URI"); + } else if (strlen($listenee) > 255) { + throw new OAuthException("Listenee URI '$listenee' too long"); + } + $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'."); + } + $license = $req->get_parameter('omb_listenee_license'); + if (!common_valid_http_url($license)) { + throw new OAuthException("Invalid license URL '$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 && (!common_valid_http_url($avatar) || strlen($avatar) > 255)) { + throw new OAuthException("Invalid avatar '$avatar'"); + } + $callback = $req->get_parameter('oauth_callback'); + if ($avatar && common_valid_http_url($callback)) { + throw new OAuthException("Invalid callback URL '$callback'"); + } } - function send_authorization() { - $req = $this->get_request(); - - if (!$req) { - common_user_error(_t('No authorization request!')); - return; + # 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 (!$consumer_key) { + throw new OAuthException("Invalid consumer key"); } - if ($this->boolean('authorize')) { - + $consumer = $datastore->lookup_consumer($consumer_key); + if (!$consumer) { + throw new OAuthException("Invalid consumer"); + } + return $consumer; + } + + # Mostly cadged from OAuthServer + + function get_token(&$req, $consumer, $datastore) {/*{{{*/ + $token_field = @$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(); } } |