diff options
Diffstat (limited to 'actions/remotesubscribe.php')
| -rw-r--r-- | actions/remotesubscribe.php | 678 |
1 files changed, 354 insertions, 324 deletions
diff --git a/actions/remotesubscribe.php b/actions/remotesubscribe.php index 624497af7..f727a63b8 100644 --- a/actions/remotesubscribe.php +++ b/actions/remotesubscribe.php @@ -21,366 +21,396 @@ if (!defined('LACONICA')) { exit(1); } require_once(INSTALLDIR.'/lib/omb.php'); -class RemotesubscribeAction extends Action { - - function handle($args) { - - parent::handle($args); - - if (common_logged_in()) { - common_user_error(_('You can use the local subscription!')); - return; - } - - if ($_SERVER['REQUEST_METHOD'] == 'POST') { - - # CSRF protection - $token = $this->trimmed('token'); - if (!$token || $token != common_session_token()) { - $this->show_form(_('There was a problem with your session token. Try again, please.')); - return; - } - - $this->remote_subscription(); - } else { - $this->show_form(); - } - } - - function get_instructions() { - return _('To subscribe, you can [login](%%action.login%%),' . - ' or [register](%%action.register%%) a new' . - ' account. If you already have an account' . - ' on a [compatible microblogging site](%%doc.openmublog%%),' . - ' enter your profile URL below.'); - } - - function show_top($err=NULL) { - if ($err) { - common_element('div', 'error', $err); - } else { - $instructions = $this->get_instructions(); - $output = common_markup_to_html($instructions); - common_element_start('div', 'instructions'); - common_raw($output); - common_element_end('p'); - } - } - - function show_form($err=NULL) { - $nickname = $this->trimmed('nickname'); - $profile = $this->trimmed('profile_url'); - common_show_header(_('Remote subscribe'), NULL, $err, - array($this, 'show_top')); - # id = remotesubscribe conflicts with the - # button on profile page - common_element_start('form', array('id' => 'remsub', 'method' => 'post', - 'action' => common_local_url('remotesubscribe'))); - common_hidden('token', common_session_token()); - common_input('nickname', _('User nickname'), $nickname, - _('Nickname of the user you want to follow')); - common_input('profile_url', _('Profile URL'), $profile, - _('URL of your profile on another compatible microblogging service')); - common_submit('submit', _('Subscribe')); - common_element_end('form'); - common_show_footer(); - } - - function remote_subscription() { - $user = $this->get_user(); - - if (!$user) { - $this->show_form(_('No such user.')); - return; - } - - $profile = $this->trimmed('profile_url'); - - if (!$profile) { - $this->show_form(_('No such user.')); - return; - } - - if (!Validate::uri($profile, array('allowed_schemes' => array('http', 'https')))) { - $this->show_form(_('Invalid profile URL (bad format)')); - return; - } - - $fetcher = Auth_Yadis_Yadis::getHTTPFetcher(); - $yadis = Auth_Yadis_Yadis::discover($profile, $fetcher); - - if (!$yadis || $yadis->failed) { - $this->show_form(_('Not a valid profile URL (no YADIS document).')); - return; - } - - # XXX: a little liberal for sites that accidentally put whitespace before the xml declaration +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) { - $this->show_form(_('Not a valid profile URL (no XRDS defined).')); - return; - } + if (!$xrds) { + $this->showForm(_('Not a valid profile URL (no XRDS defined).')); + return; + } - $omb = $this->getOmb($xrds); + $omb = $this->getOmb($xrds); - if (!$omb) { - $this->show_form(_('Not a valid profile URL (incorrect services).')); - return; - } + if (!$omb) { + $this->showForm(_('Not a valid profile URL (incorrect services).')); + return; + } - if (omb_service_uri($omb[OAUTH_ENDPOINT_REQUEST]) == - common_local_url('requesttoken')) - { - $this->show_form(_('That\'s a local profile! Login to subscribe.')); - return; - } - - if (User::staticGet('uri', omb_local_id($omb[OAUTH_ENDPOINT_REQUEST]))) { - $this->show_form(_('That\'s a local profile! Login to subscribe.')); - return; - } - - list($token, $secret) = $this->request_token($omb); - - if (!$token || !$secret) { - $this->show_form(_('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, $xrds); + if (omb_service_uri($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, $omb)) { + return null; + } + + # XXX: check that we got all the services we needed + + foreach (array_merge($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] = $matches[0]; + } else { + # no match for type + return false; + } + } + return true; + } - if (!$oauth_xrd) { - return NULL; - } + function requestToken($omb) + { + $con = omb_oauth_consumer(); - if (!$this->addServices($oauth_xrd, $oauth_endpoints, $omb)) { - return NULL; - } + $url = omb_service_uri($omb[OAUTH_ENDPOINT_REQUEST]); - $omb_services = omb_get_services($xrds, OMB_NAMESPACE); + # XXX: Is this the right thing to do? Strip off GET params and make them + # POST params? Seems wrong to me. - if (!$omb_services) { - return NULL; - } + $parsed = parse_url($url); + $params = array(); + parse_str($parsed['query'], $params); - $omb_service = $omb_services[0]; + $req = OAuthRequest::from_consumer_and_token($con, null, "POST", $url, $params); - $omb_xrd = $this->getXRD($omb_service, $xrds); + $listener = omb_local_id($omb[OAUTH_ENDPOINT_REQUEST]); - if (!$omb_xrd) { - return NULL; - } + if (!$listener) { + 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(), + $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, $return); + if ($result->status != 200) { + return null; + } - return array($return['oauth_token'], $return['oauth_token_secret']); - } + parse_str($result->body, $return); - function request_authorization($user, $omb, $token, $secret) { - global $config; # for license URL + return array($return['oauth_token'], $return['oauth_token_secret']); + } - $con = omb_oauth_consumer(); - $tok = new OAuthToken($token, $secret); + function requestAuthorization($user, $omb, $token, $secret) + { + global $config; # for license URL - $url = omb_service_uri($omb[OAUTH_ENDPOINT_AUTHORIZE]); + $con = omb_oauth_consumer(); + $tok = new OAuthToken($token, $secret); - # XXX: Is this the right thing to do? Strip off GET params and make them - # POST params? Seems wrong to me. + $url = omb_service_uri($omb[OAUTH_ENDPOINT_AUTHORIZE]); - $parsed = parse_url($url); - $params = array(); - parse_str($parsed['query'], $params); + # XXX: Is this the right thing to do? Strip off GET params and make them + # POST params? Seems wrong to me. - $req = OAuthRequest::from_consumer_and_token($con, $tok, 'GET', $url, $params); + $parsed = parse_url($url); + $params = array(); + parse_str($parsed['query'], $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. + $req = OAuthRequest::from_consumer_and_token($con, $tok, 'GET', $url, $params); - $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']); + # 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. - $profile = $user->getProfile(); - if (!$profile) { - common_log_db_error($user, 'SELECT', __FILE__); - $this->server_error(_('User without matching profile')); - return; - } + $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', $config['license']['url']); - if ($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); - } + $profile = $user->getProfile(); + if (!$profile) { + common_log_db_error($user, 'SELECT', __FILE__); + $this->serverError(_('User without matching profile')); + return; + } - # XXX: add a nonce to prevent replay attacks + if ($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); + } - $req->set_parameter('oauth_callback', common_local_url('finishremotesubscribe')); + # XXX: add a nonce to prevent replay attacks - # XXX: test to see if endpoint accepts this signature method + $req->set_parameter('oauth_callback', common_local_url('finishremotesubscribe')); - $req->sign_request(omb_hmac_sha1(), $con, $tok); + # XXX: test to see if endpoint accepts this signature method - # store all our info here + $req->sign_request(omb_hmac_sha1(), $con, $tok); - $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]); + # store all our info here - common_ensure_session(); + $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]); - $_SESSION['oauth_authorization_request'] = $omb; + common_ensure_session(); - # Redirect to authorization service + $_SESSION['oauth_authorization_request'] = $omb; - common_redirect($req->to_url()); - return; - } + # Redirect to authorization service - function make_nonce() { - return common_good_rand(16); - } + common_redirect($req->to_url()); + return; + } } |