-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 {
- if (!common_logged_in()) {
- # Go log in, and then come back
- common_debug('userauthorization.php - saving URL for returnto');
- $argsclone = $args;
- unset($argsclone['action']);
- common_set_returnto(common_local_url('userauthorization', $argsclone));
- common_debug('userauthorization.php - redirecting to login');
- common_redirect(common_local_url('login'));
- return;
- }
- try {
- # this must be a new request
- common_debug('userauthorization.php - getting new request');
- $req = $this->get_new_request();
- if (!$req) {
- common_server_error(_t('No request found!'));
- }
- common_debug('userauthorization.php - validating request');
- # XXX: only validate new requests, since nonce is one-time use
- $this->validate_request($req);
- common_debug('userauthorization.php - showing form');
- $this->store_request($req);
- $this->show_form($req);
- } catch (OAuthException $e) {
- $this->clear_request();
- common_server_error($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 = $req->get_parameter('omb_listenee_avatar');
-
- common_show_header(_t('Authorize subscription'));
- common_element('p', _t('Please check these details to make sure '.
- 'that you want to subscribe to this user\'s notices. '.
- 'If you didn\'t just ask to subscribe to someone\'s notices, '.
- 'click "Cancel".'));
- common_element_start('div', 'profile');
- if ($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.
-
- $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();
- $remote->id = $id;
- }
-
- if ($exists) {
- $remote->update($orig_remote);
- } else {
- $remote->created = DB_DataObject_Cast::dateTime(); # current time
- $remote->insert();
- }
-
- if ($avatar_url) {
- $this->add_avatar($profile, $avatar_url);
- }
-
- $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 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(_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'] = $req;
- }
-
- function clear_request() {
- common_ensure_session();
- unset($_SESSION['userauthorizationrequest']);
- }
-
- function get_stored_request() {
- common_ensure_session();
- $req = $_SESSION['userauthorizationrequest'];
- return $req;
- }
-
- function get_new_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");
- }
- $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) &&
- !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");
- }
- $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) {
- 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'");
- }
- }
-
- # 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();
- }
+class UserauthorizationAction extends Action
+{
+ var $error;
+ var $params;
+
+ function handle($args)
+ {
+ parent::handle($args);
+
+ if ($_SERVER['REQUEST_METHOD'] == 'POST') {
+ /* Use a session token for CSRF protection. */
+ $token = $this->trimmed('token');
+ if (!$token || $token != common_session_token()) {
+ $srv = $this->getStoredParams();
+ $this->showForm($srv->getRemoteUser(), _('There was a problem ' .
+ 'with your session token. Try again, ' .
+ 'please.'));
+ return;
+ }
+ /* We've shown the form, now post user's choice. */
+ $this->sendAuthorization();
+ } else {
+ if (!common_logged_in()) {
+ /* Go log in, and then come back. */
+ common_set_returnto($_SERVER['REQUEST_URI']);
+
+ common_redirect(common_local_url('login'));
+ return;
+ }
+
+ $user = common_current_user();
+ $profile = $user->getProfile();
+ if (!$profile) {
+ common_log_db_error($user, 'SELECT', __FILE__);
+ $this->serverError(_('User without matching profile'));
+ return;
+ }
+
+ /* TODO: If no token is passed the user should get a prompt to enter
+ it according to OAuth Core 1.0. */
+ try {
+ $this->validateOmb();
+ $srv = new OMB_Service_Provider(
+ profile_to_omb_profile($user->uri, $profile),
+ omb_oauth_datastore());
+
+ $remote_user = $srv->handleUserAuth();
+ } catch (Exception $e) {
+ $this->clearParams();
+ $this->clientError($e->getMessage());
+ return;
+ }
+
+ $this->storeParams($srv);
+ $this->showForm($remote_user);
+ }
+ }
+
+ function showForm($params, $error=null)
+ {
+ $this->params = $params;
+ $this->error = $error;
+ $this->showPage();
+ }
+
+ function title()
+ {
+ return _('Authorize subscription');
+ }
+
+ function showPageNotice()
+ {
+ $this->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 “Reject”.'));
+ }
+
+ function showContent()
+ {
+ $params = $this->params;
+
+ $nickname = $params->getNickname();
+ $profile = $params->getProfileURL();
+ $license = $params->getLicenseURL();
+ $fullname = $params->getFullname();
+ $homepage = $params->getHomepage();
+ $bio = $params->getBio();
+ $location = $params->getLocation();
+ $avatar = $params->getAvatarURL();
+
+ $this->elementStart('div', 'entity_profile vcard');
+ $this->elementStart('dl', 'entity_depiction');
+ $this->element('dt', null, _('Photo'));
+ $this->elementStart('dd');
+ if ($avatar) {
+ $this->element('img', array('src' => $avatar,
+ 'class' => 'photo avatar',
+ 'width' => AVATAR_PROFILE_SIZE,
+ 'height' => AVATAR_PROFILE_SIZE,
+ 'alt' => $nickname));
+ }
+ $this->elementEnd('dd');
+ $this->elementEnd('dl');
+
+ $this->elementStart('dl', 'entity_nickname');
+ $this->element('dt', null, _('Nickname'));
+ $this->elementStart('dd');
+ $hasFN = ($fullname !== '') ? 'nickname' : 'fn nickname';
+ $this->elementStart('a', array('href' => $profile,
+ 'class' => 'url '.$hasFN));
+ $this->raw($nickname);
+ $this->elementEnd('a');
+ $this->elementEnd('dd');
+ $this->elementEnd('dl');
+
+ if (!is_null($fullname)) {
+ $this->elementStart('dl', 'entity_fn');
+ $this->elementStart('dd');
+ $this->elementStart('span', 'fn');
+ $this->raw($fullname);
+ $this->elementEnd('span');
+ $this->elementEnd('dd');
+ $this->elementEnd('dl');
+ }
+ if (!is_null($location)) {
+ $this->elementStart('dl', 'entity_location');
+ $this->element('dt', null, _('Location'));
+ $this->elementStart('dd', 'label');
+ $this->raw($location);
+ $this->elementEnd('dd');
+ $this->elementEnd('dl');
+ }
+
+ if (!is_null($homepage)) {
+ $this->elementStart('dl', 'entity_url');
+ $this->element('dt', null, _('URL'));
+ $this->elementStart('dd');
+ $this->elementStart('a', array('href' => $homepage,
+ 'class' => 'url'));
+ $this->raw($homepage);
+ $this->elementEnd('a');
+ $this->elementEnd('dd');
+ $this->elementEnd('dl');
+ }
+
+ if (!is_null($bio)) {
+ $this->elementStart('dl', 'entity_note');
+ $this->element('dt', null, _('Note'));
+ $this->elementStart('dd', 'note');
+ $this->raw($bio);
+ $this->elementEnd('dd');
+ $this->elementEnd('dl');
+ }
+
+ if (!is_null($license)) {
+ $this->elementStart('dl', 'entity_license');
+ $this->element('dt', null, _('License'));
+ $this->elementStart('dd', 'license');
+ $this->element('a', array('href' => $license,
+ 'class' => 'license'),
+ $license);
+ $this->elementEnd('dd');
+ $this->elementEnd('dl');
+ }
+ $this->elementEnd('div');
+
+ $this->elementStart('div', 'entity_actions');
+ $this->elementStart('ul');
+ $this->elementStart('li', 'entity_subscribe');
+ $this->elementStart('form', array('method' => 'post',
+ 'id' => 'userauthorization',
+ 'class' => 'form_user_authorization',
+ 'name' => 'userauthorization',
+ 'action' => common_local_url(
+ 'userauthorization')));
+ $this->hidden('token', common_session_token());
+
+ $this->submit('accept', _('Accept'), 'submit accept', null,
+ _('Subscribe to this user'));
+ $this->submit('reject', _('Reject'), 'submit reject', null,
+ _('Reject this subscription'));
+ $this->elementEnd('form');
+ $this->elementEnd('li');
+ $this->elementEnd('ul');
+ $this->elementEnd('div');
+ }
+
+ function sendAuthorization()
+ {
+ $srv = $this->getStoredParams();
+
+ if (is_null($srv)) {
+ $this->clientError(_('No authorization request!'));
+ return;
+ }
+
+ $accepted = $this->arg('accept');
+ try {
+ list($val, $token) = $srv->continueUserAuth($accepted);
+ } catch (Exception $e) {
+ $this->clientError($e->getMessage());
+ return;
+ }
+ if ($val !== false) {
+ common_redirect($val, 303);
+ } elseif ($accepted) {
+ $this->showAcceptMessage($token);
+ } else {
+ $this->showRejectMessage();
+ }
+ }
+
+ function showAcceptMessage($tok)
+ {
+ common_show_header(_('Subscription authorized'));
+ $this->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:'));
+ $this->element('blockquote', 'token', $tok);
+ common_show_footer();
+ }
+
+ function showRejectMessage()
+ {
+ common_show_header(_('Subscription rejected'));
+ $this->element('p', null,
+ _('The subscription has been rejected, but no '.
+ 'callback URL was passed. Check with the site’s ' .
+ 'instructions for details on how to fully reject ' .
+ 'the subscription.'));
+ common_show_footer();
+ }
+
+ function storeParams($params)
+ {
+ common_ensure_session();
+ $_SESSION['userauthorizationparams'] = serialize($params);
+ }
+
+ function clearParams()
+ {
+ common_ensure_session();
+ unset($_SESSION['userauthorizationparams']);
+ }
+
+ function getStoredParams()
+ {
+ common_ensure_session();
+ $params = unserialize($_SESSION['userauthorizationparams']);
+ return $params;
+ }
+
+ function validateOmb()
+ {
+ $listener = $_GET['omb_listener'];
+ $listenee = $_GET['omb_listenee'];
+ $nickname = $_GET['omb_listenee_nickname'];
+ $profile = $_GET['omb_listenee_profile'];
+
+ $user = User::staticGet('uri', $listener);
+ if (!$user) {
+ throw new Exception(sprintf(_('Listener URI ‘%s’ not found here.'),
+ $listener));
+ }
+
+ if (strlen($listenee) > 255) {
+ throw new Exception(sprintf(_('Listenee URI ‘%s’ is too long.'),
+ $listenee));
+ }
+
+ $other = User::staticGet('uri', $listenee);
+ if ($other) {
+ throw new Exception(sprintf(_('Listenee URI ‘%s’ is a local user.'),
+ $listenee));
+ }
+
+ $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 Exception('You are already subscribed to this user.');
+ }
+ }
+
+ if ($profile == common_profile_url($nickname)) {
+ throw new Exception(sprintf(_('Profile URL ‘%s’ is for a local user.'),
+ $profile));
+
+ }
+
+ $license = $_GET['omb_listenee_license'];
+ $site_license = common_config('license', 'url');
+ if (!common_compatible_license($license, $site_license)) {
+ throw new Exception(sprintf(_('Listenee stream license ‘%1$s’ is not ' .
+ 'compatible with site license ‘%2$s’.'),
+ $license, $site_license));
+ }
+
+ $avatar = $_GET['omb_listenee_avatar'];
+ if ($avatar) {
+ if (!common_valid_http_url($avatar) || strlen($avatar) > 255) {
+ throw new Exception(sprintf(_('Avatar URL ‘%s’ is not valid.'),
+ $avatar));
+ }
+ $size = @getimagesize($avatar);
+ if (!$size) {
+ throw new Exception(sprintf(_('Can’t read avatar URL ‘%s’.'),
+ $avatar));
+ }
+ if (!in_array($size[2], array(IMAGETYPE_GIF, IMAGETYPE_JPEG,
+ IMAGETYPE_PNG))) {
+ throw new Exception(sprintf(_('Wrong image type for avatar URL '.
+ '‘%s’.'), $avatar));
+ }
+ }
+ }