gnu-social/actions/apioauthauthorize.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Authorize an OAuth request token
*
* PHP version 5
*
* LICENCE: 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/>.
*
* @category API
* @package StatusNet
* @author Zach Copley <zach@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
exit(1);
}
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require_once INSTALLDIR . '/lib/apioauth.php';
require_once INSTALLDIR . '/lib/info.php';
/**
* Authorize an OAuth request token
*
* @category API
* @package StatusNet
* @author Zach Copley <zach@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
class ApiOauthAuthorizeAction extends Action
{
var $oauthTokenParam;
var $reqToken;
var $callback;
var $app;
var $nickname;
var $password;
var $store;
/**
* Is this a read-only action?
*
* @return boolean false
*/
function isReadOnly($args)
{
return false;
}
function prepare($args)
{
parent::prepare($args);
$this->nickname = $this->trimmed('nickname');
$this->password = $this->arg('password');
$this->oauthTokenParam = $this->arg('oauth_token');
$this->callback = $this->arg('oauth_callback');
$this->store = new ApiStatusNetOAuthDataStore();
try {
$this->app = $this->store->getAppByRequestToken($this->oauthTokenParam);
} catch (Exception $e) {
$this->clientError($e->getMessage());
}
return true;
}
/**
* Handle input, produce output
*
* Switches on request method; either shows the form or handles its input.
*
* @param array $args $_REQUEST data
*
* @return void
*/
function handle($args)
{
parent::handle($args);
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$this->handlePost();
} else {
// Make sure a oauth_token parameter was provided
if (empty($this->oauthTokenParam)) {
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$this->clientError(_('No oauth_token parameter provided.'));
} else {
// Check to make sure the token exists
$this->reqToken = $this->store->getTokenByKey($this->oauthTokenParam);
if (empty($this->reqToken)) {
$this->serverError(
_('Invalid request token.')
);
} else {
// Check to make sure we haven't already authorized the token
if ($this->reqToken->state != 0) {
$this->clientError("Invalid request token.");
}
}
}
// make sure there's an app associated with this token
if (empty($this->app)) {
$this->clientError(_('Invalid request token.'));
}
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$name = $this->app->name;
$this->showForm();
}
}
function handlePost()
{
// check session token for CSRF protection.
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
$this->showForm(
_('There was a problem with your session token. Try again, please.'));
return;
}
// check creds
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$user = null;
if (!common_logged_in()) {
// XXX Force credentials check?
// XXX OpenID
$user = common_check_user($this->nickname, $this->password);
if (empty($user)) {
$this->showForm(_("Invalid nickname / password!"));
return;
}
} else {
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$user = common_current_user();
}
if ($this->arg('allow')) {
// fetch the token
$this->reqToken = $this->store->getTokenByKey($this->oauthTokenParam);
// mark the req token as authorized
try {
$this->store->authorize_token($this->oauthTokenParam);
} catch (Exception $e) {
$this->serverError($e->getMessage());
}
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// Check to see if there was a previous token associated
// with this user/app and kill it. If the user is doing this she
// probably doesn't want any old tokens anyway.
$appUser = Oauth_application_user::getByKeys($user, $this->app);
if (!empty($appUser)) {
$result = $appUser->delete();
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if (!$result) {
common_log_db_error($appUser, 'DELETE', __FILE__);
$this->serverError(_('Database error deleting OAuth application user.'));
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}
}
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// associated the authorized req token with the user and the app
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$appUser = new Oauth_application_user();
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$appUser->profile_id = $user->id;
$appUser->application_id = $this->app->id;
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// Note: do not copy the access type from the application.
// The access type should always be 0 when the OAuth app
// user record has a request token associated with it.
// Access type gets assigned once an access token has been
// granted. The OAuth app user record then gets updated
// with the new access token and access type.
$appUser->token = $this->oauthTokenParam;
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$appUser->created = common_sql_now();
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$result = $appUser->insert();
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if (!$result) {
common_log_db_error($appUser, 'INSERT', __FILE__);
$this->serverError(_('Database error inserting OAuth application user.'));
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}
// If we have a callback redirect and provide the token
// Note: A callback specified in the app setup overrides whatever
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// is passed in with the request.
if (!empty($this->app->callback_url)) {
$this->callback = $this->app->callback_url;
}
if (!empty($this->callback)) {
$targetUrl = $this->getCallback(
$this->callback,
array(
'oauth_token' => $this->oauthTokenParam,
'oauth_verifier' => $this->reqToken->verifier // 1.0a
)
);
// Redirect the user to the provided OAuth callback
common_redirect($targetUrl, 303);
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} else {
common_log(
LOG_INFO,
"No oauth_callback parameter provided for application ID "
. $this->app->id
. " when authorizing request token."
);
}
// Otherwise, inform the user that the rt was authorized
$this->showAuthorized();
} else if ($this->arg('cancel')) {
try {
$this->store->revoke_token($this->oauthTokenParam, 0);
$this->showCanceled();
} catch (Exception $e) {
$this->ServerError($e->getMessage());
}
} else {
$this->clientError(_('Unexpected form submission.'));
}
}
function showForm($error=null)
{
$this->error = $error;
$this->showPage();
}
function showScripts()
{
parent::showScripts();
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if (!common_logged_in()) {
$this->autofocus('nickname');
}
}
/**
* Title of the page
*
* @return string title of the page
*/
function title()
{
return _('An application would like to connect to your account');
}
/**
* Shows the authorization form.
*
* @return void
*/
function showContent()
{
$this->elementStart('form', array('method' => 'post',
'id' => 'form_apioauthauthorize',
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'class' => 'form_settings',
'action' => common_local_url('ApiOauthAuthorize')));
$this->elementStart('fieldset');
$this->element('legend', array('id' => 'apioauthauthorize_allowdeny'),
_('Allow or deny access'));
$this->hidden('token', common_session_token());
$this->hidden('oauth_token', $this->oauthTokenParam);
$this->hidden('oauth_callback', $this->callback);
$this->elementStart('ul', 'form_data');
$this->elementStart('li');
$this->elementStart('p');
if (!empty($this->app->icon)) {
$this->element('img', array('src' => $this->app->icon));
}
$access = ($this->app->access_type & Oauth_application::$writeAccess) ?
'access and update' : 'access';
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$msg = _('The application <strong>%1$s</strong> by ' .
'<strong>%2$s</strong> would like the ability ' .
'to <strong>%3$s</strong> your %4$s account data. ' .
'You should only give access to your %4$s account ' .
'to third parties you trust.');
$this->raw(sprintf($msg,
$this->app->name,
$this->app->organization,
$access,
common_config('site', 'name')));
$this->elementEnd('p');
$this->elementEnd('li');
$this->elementEnd('ul');
if (!common_logged_in()) {
$this->elementStart('fieldset');
$this->element('legend', null, _('Account'));
$this->elementStart('ul', 'form_data');
$this->elementStart('li');
$this->input('nickname', _('Nickname'));
$this->elementEnd('li');
$this->elementStart('li');
$this->password('password', _('Password'));
$this->elementEnd('li');
$this->elementEnd('ul');
$this->elementEnd('fieldset');
}
$this->element('input', array('id' => 'cancel_submit',
'class' => 'submit submit form_action-primary',
'name' => 'cancel',
'type' => 'submit',
'value' => _('Cancel')));
$this->element('input', array('id' => 'allow_submit',
'class' => 'submit submit form_action-secondary',
'name' => 'allow',
'type' => 'submit',
'value' => _('Allow')));
$this->elementEnd('fieldset');
$this->elementEnd('form');
}
/**
* Instructions for using the form
*
* For "remembered" logins, we make the user re-login when they
* try to change settings. Different instructions for this case.
*
* @return void
*/
function getInstructions()
{
return _('Authorize access to your account information.');
}
/**
* A local menu
*
* Shows different login/register actions.
*
* @return void
*/
function showLocalNav()
{
// NOP
}
/**
* Show site notice.
*
* @return nothing
*/
function showSiteNotice()
{
// NOP
}
/**
* Show notice form.
*
* Show the form for posting a new notice
*
* @return nothing
*/
function showNoticeForm()
{
// NOP
}
/*
* Show a nice message confirming the authorization
* operation was canceled.
*
* @return nothing
*/
function showCanceled()
{
$info = new InfoAction(
_('Authorization canceled.'),
sprintf(
_('The request token %s has been revoked.'),
$this->oauthTokenParm
)
);
$info->showPage();
}
/*
* Show a nice message that the authorization was successful.
* If the operation is out-of-band, show a pin.
*
* @return nothing
*/
function showAuthorized()
{
if ($this->reqToken->verified_callback == 'oob') {
$pin = new ApiOauthPinAction($this->reqToken->verifier);
$pin->showPage();
} else {
$info = new InfoAction(
_("Authorization succeeded."),
sprintf(
_('The request token %s has been authorized. Please exchange it for an access token using this verifier: %s'),
$this->oauthTokenParam,
$this->reqToken->verifier
)
);
$info->showPage();
}
}
/*
* Properly format the callback URL and parameters so it's
* suitable for a redirect in the OAuth dance
*
* @param string $url the URL
* @param array $params an array of parameters
*
* @return string $url a URL to use for redirecting to
*/
function getCallback($url, $params)
{
foreach ($params as $k => $v) {
$url = $this->appendQueryVar(
$url,
OAuthUtil::urlencode_rfc3986($k),
OAuthUtil::urlencode_rfc3986($v)
);
}
return $url;
}
/*
* Append a new query parameter after any existing query
* parameters.
*
* @param string $url the URL
* @prarm string $k the parameter name
* @param string $v value of the paramter
*
* @return string $url the new URL with added parameter
*/
function appendQueryVar($url, $k, $v) {
$url = preg_replace('/(.*)(\?|&)' . $k . '=[^&]+?(&)(.*)/i', '$1$2$4', $url . '&');
$url = substr($url, 0, -1);
if (strpos($url, '?') === false) {
return ($url . '?' . $k . '=' . $v);
} else {
return ($url . '&' . $k . '=' . $v);
}
}
}