forked from GNUsocial/gnu-social
538 lines
17 KiB
PHP
538 lines
17 KiB
PHP
<?php
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/**
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* StatusNet, the distributed open-source microblogging tool
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*
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* Authorize an OAuth request token
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*
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* PHP version 5
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*
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* LICENCE: This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category API
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* @package StatusNet
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* @author Zach Copley <zach@status.net>
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* @copyright 2010 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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if (!defined('STATUSNET')) {
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exit(1);
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}
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require_once INSTALLDIR . '/lib/apioauth.php';
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require_once INSTALLDIR . '/lib/info.php';
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/**
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* Authorize an OAuth request token
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*
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* @category API
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* @package StatusNet
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* @author Zach Copley <zach@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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class ApiOauthAuthorizeAction extends Action
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{
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var $oauthTokenParam;
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var $reqToken;
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var $callback;
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var $app;
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var $nickname;
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var $password;
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var $store;
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/**
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* Is this a read-only action?
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*
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* @return boolean false
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*/
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function isReadOnly($args)
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{
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return false;
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}
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function prepare($args)
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{
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parent::prepare($args);
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$this->nickname = $this->trimmed('nickname');
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$this->password = $this->arg('password');
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$this->oauthTokenParam = $this->arg('oauth_token');
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$this->callback = $this->arg('oauth_callback');
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$this->store = new ApiStatusNetOAuthDataStore();
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try {
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$this->app = $this->store->getAppByRequestToken($this->oauthTokenParam);
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} catch (Exception $e) {
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$this->clientError($e->getMessage());
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}
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return true;
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}
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/**
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* Handle input, produce output
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*
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* Switches on request method; either shows the form or handles its input.
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*
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* @param array $args $_REQUEST data
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*
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* @return void
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*/
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function handle($args)
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{
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parent::handle($args);
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if ($_SERVER['REQUEST_METHOD'] == 'POST') {
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$this->handlePost();
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} else {
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// Make sure a oauth_token parameter was provided
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if (empty($this->oauthTokenParam)) {
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// TRANS: Client error given when no oauth_token was passed to the OAuth API.
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$this->clientError(_('No oauth_token parameter provided.'));
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} else {
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// Check to make sure the token exists
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$this->reqToken = $this->store->getTokenByKey($this->oauthTokenParam);
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if (empty($this->reqToken)) {
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// TRANS: Client error given when an invalid request token was passed to the OAuth API.
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$this->clientError(_('Invalid request token.'));
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} else {
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// Check to make sure we haven't already authorized the token
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if ($this->reqToken->state != 0) {
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// TRANS: Client error given when an invalid request token was passed to the OAuth API.
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$this->clientError(_("Invalid request token."));
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}
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}
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}
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// make sure there's an app associated with this token
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if (empty($this->app)) {
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// TRANS: Client error given when an invalid request token was passed to the OAuth API.
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$this->clientError(_('Invalid request token.'));
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}
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$name = $this->app->name;
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$this->showForm();
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}
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}
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function handlePost()
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{
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// check session token for CSRF protection.
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$token = $this->trimmed('token');
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if (!$token || $token != common_session_token()) {
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$this->showForm(
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_('There was a problem with your session token. Try again, please.'));
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return;
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}
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// check creds
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$user = null;
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if (!common_logged_in()) {
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// XXX Force credentials check?
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// XXX OpenID
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$user = common_check_user($this->nickname, $this->password);
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if (empty($user)) {
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// TRANS: Form validation error given when an invalid username and/or password was passed to the OAuth API.
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$this->showForm(_("Invalid nickname / password!"));
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return;
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}
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} else {
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$user = common_current_user();
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}
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if ($this->arg('allow')) {
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// fetch the token
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$this->reqToken = $this->store->getTokenByKey($this->oauthTokenParam);
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// mark the req token as authorized
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try {
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$this->store->authorize_token($this->oauthTokenParam);
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} catch (Exception $e) {
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$this->serverError($e->getMessage());
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}
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// associated the authorized req token with the user and the app
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$appUser = new Oauth_application_user();
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$appUser->profile_id = $user->id;
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$appUser->application_id = $this->app->id;
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// Note: do not copy the access type from the application.
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// The access type should always be 0 when the OAuth app
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// user record has a request token associated with it.
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// Access type gets assigned once an access token has been
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// granted. The OAuth app user record then gets updated
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// with the new access token and access type.
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$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) {
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common_log_db_error($appUser, 'INSERT', __FILE__);
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// TRANS: Server error given when a database error occurs inserting an OAuth application user.
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$this->serverError(_('Database error inserting OAuth application user.'));
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}
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// If we have a callback redirect and provide the token
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// Note: A callback specified in the app setup overrides whatever
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// is passed in with the request.
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if (!empty($this->app->callback_url)) {
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$this->callback = $this->app->callback_url;
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}
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if (!empty($this->callback)) {
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$targetUrl = $this->getCallback(
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$this->callback,
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array(
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'oauth_token' => $this->oauthTokenParam,
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'oauth_verifier' => $this->reqToken->verifier // 1.0a
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)
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);
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// Redirect the user to the provided OAuth callback
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common_redirect($targetUrl, 303);
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} elseif ($this->app->type == 2) {
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// Strangely, a web application seems to want to do the OOB
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// workflow. Because no callback was specified anywhere.
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common_log(
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LOG_WARNING,
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sprintf(
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"API OAuth - No callback provided for OAuth web client ID %s (%s) "
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. "during authorization step. Falling back to OOB workflow.",
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$this->app->id,
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$this->app->name
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)
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);
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}
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common_log(
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LOG_INFO,
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sprintf(
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"The request token '%s' for OAuth application %s (%s) has been authorized.",
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$this->oauthTokenParam,
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$this->app->id,
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$this->app->name
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)
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);
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// Otherwise, inform the user that the rt was authorized
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$this->showAuthorized();
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} else if ($this->arg('cancel')) {
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try {
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$this->store->revoke_token($this->oauthTokenParam, 0);
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$this->showCanceled();
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} catch (Exception $e) {
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$this->ServerError($e->getMessage());
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}
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} else {
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// TRANS: Client error given on when invalid data was passed through a form in the OAuth API.
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$this->clientError(_('Unexpected form submission.'));
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}
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}
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function showForm($error=null)
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{
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$this->error = $error;
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$this->showPage();
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}
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function showScripts()
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{
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parent::showScripts();
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if (!common_logged_in()) {
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$this->autofocus('nickname');
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}
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}
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/**
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* Title of the page
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*
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* @return string title of the page
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*/
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function title()
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{
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// TRANS: Title for a page where a user can confirm/deny account access by an external application.
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return _('An application would like to connect to your account');
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}
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/**
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* Shows the authorization form.
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*
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* @return void
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*/
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function showContent()
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{
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$this->elementStart('form', array('method' => 'post',
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'id' => 'form_apioauthauthorize',
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'class' => 'form_settings',
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'action' => common_local_url('ApiOauthAuthorize')));
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$this->elementStart('fieldset');
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$this->element('legend', array('id' => 'apioauthauthorize_allowdeny'),
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// TRANS: Fieldset legend.
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_('Allow or deny access'));
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$this->hidden('token', common_session_token());
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$this->hidden('oauth_token', $this->oauthTokenParam);
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$this->hidden('oauth_callback', $this->callback);
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$this->elementStart('ul', 'form_data');
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$this->elementStart('li');
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$this->elementStart('p');
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if (!empty($this->app->icon)) {
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$this->element('img', array('src' => $this->app->icon));
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}
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$access = ($this->app->access_type & Oauth_application::$writeAccess) ?
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'access and update' : 'access';
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// TRANS: User notification of external application requesting account access.
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// TRANS: %1$s is the application name requesting access, %2$s is the organisation behind the application,
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// TRANS: %3$s is the access type requested, %4$s is the StatusNet sitename.
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$msg = _('The application <strong>%1$s</strong> by ' .
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'<strong>%2$s</strong> would like the ability ' .
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'to <strong>%3$s</strong> your %4$s account data. ' .
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'You should only give access to your %4$s account ' .
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'to third parties you trust.');
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$this->raw(sprintf($msg,
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$this->app->name,
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$this->app->organization,
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$access,
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common_config('site', 'name')));
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$this->elementEnd('p');
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$this->elementEnd('li');
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$this->elementEnd('ul');
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if (!common_logged_in()) {
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$this->elementStart('fieldset');
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// TRANS: Fieldset legend.
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$this->element('legend', null, _m('LEGEND','Account'));
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$this->elementStart('ul', 'form_data');
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$this->elementStart('li');
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// TRANS: Field label on OAuth API authorisation form.
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$this->input('nickname', _('Nickname'));
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$this->elementEnd('li');
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$this->elementStart('li');
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// TRANS: Field label on OAuth API authorisation form.
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$this->password('password', _('Password'));
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$this->elementEnd('li');
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$this->elementEnd('ul');
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$this->elementEnd('fieldset');
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}
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$this->element('input', array('id' => 'cancel_submit',
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'class' => 'submit submit form_action-primary',
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'name' => 'cancel',
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'type' => 'submit',
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// TRANS: Button text that when clicked will cancel the process of allowing access to an account
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// TRANS: by an external application.
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'value' => _m('BUTTON','Cancel')));
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$this->element('input', array('id' => 'allow_submit',
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'class' => 'submit submit form_action-secondary',
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'name' => 'allow',
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'type' => 'submit',
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// TRANS: Button text that when clicked will allow access to an account by an external application.
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'value' => _m('BUTTON','Allow')));
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$this->elementEnd('fieldset');
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$this->elementEnd('form');
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}
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/**
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* Instructions for using the form
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*
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* For "remembered" logins, we make the user re-login when they
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* try to change settings. Different instructions for this case.
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*
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* @return void
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*/
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function getInstructions()
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{
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// TRANS: Form instructions.
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return _('Authorize access to your account information.');
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}
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/**
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* A local menu
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*
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* Shows different login/register actions.
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*
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* @return void
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*/
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function showLocalNav()
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{
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// NOP
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}
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/**
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* Show site notice.
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*
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* @return nothing
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*/
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function showSiteNotice()
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{
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// NOP
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}
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/**
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* Show notice form.
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*
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* Show the form for posting a new notice
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*
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* @return nothing
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*/
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function showNoticeForm()
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{
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// NOP
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}
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/*
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* Show a nice message confirming the authorization
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* operation was canceled.
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*
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* @return nothing
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*/
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function showCanceled()
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{
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$info = new InfoAction(
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// TRANS: Header for user notification after revoking OAuth access to an application.
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_('Authorization canceled.'),
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sprintf(
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// TRANS: User notification after revoking OAuth access to an application.
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// TRANS: %s is an OAuth token.
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_('The request token %s has been revoked.'),
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$this->oauthTokenParm
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)
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);
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$info->showPage();
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}
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/*
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* Show a nice message that the authorization was successful.
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* If the operation is out-of-band, show a pin.
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*
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* @return nothing
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*/
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function showAuthorized()
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{
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$title = sprintf(
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// TRANS: Header of user notification after authorising an application access to a profile.
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// TRANS: %s is the authorised application name.
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_("You have successfully authorized %s."),
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$this->app->name
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);
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$msg = sprintf(
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// TRANS: Uer notification after authorising an application access to a profile.
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// TRANS: %s is the authorised application name.
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_('Please return to %s and enter the following security code to complete the process.'),
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$this->app->name
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);
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if ($this->reqToken->verified_callback == 'oob') {
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$pin = new ApiOauthPinAction($title, $msg, $this->reqToken->verifier);
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$pin->showPage();
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} else {
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// NOTE: This would only happen if an application registered as
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// a web application but sent in 'oob' for the oauth_callback
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// parameter. Usually web apps will send in a callback and
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// not use the pin-based workflow.
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$info = new InfoAction(
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$title,
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$msg,
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$this->oauthTokenParam,
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$this->reqToken->verifier
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);
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$info->showPage();
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}
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}
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/*
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* Properly format the callback URL and parameters so it's
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* suitable for a redirect in the OAuth dance
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*
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* @param string $url the URL
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* @param array $params an array of parameters
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*
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* @return string $url a URL to use for redirecting to
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*/
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function getCallback($url, $params)
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{
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foreach ($params as $k => $v) {
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$url = $this->appendQueryVar(
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$url,
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OAuthUtil::urlencode_rfc3986($k),
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OAuthUtil::urlencode_rfc3986($v)
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);
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}
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return $url;
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}
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/*
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* Append a new query parameter after any existing query
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* parameters.
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*
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* @param string $url the URL
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* @prarm string $k the parameter name
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* @param string $v value of the paramter
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*
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* @return string $url the new URL with added parameter
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*/
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function appendQueryVar($url, $k, $v) {
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$url = preg_replace('/(.*)(\?|&)' . $k . '=[^&]+?(&)(.*)/i', '$1$2$4', $url . '&');
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$url = substr($url, 0, -1);
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if (strpos($url, '?') === false) {
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return ($url . '?' . $k . '=' . $v);
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} else {
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return ($url . '&' . $k . '=' . $v);
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}
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}
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}
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