<commit_before><?php
/**
 * StatusNet, the distributed open-source microblogging tool
 *
 * Base class for API actions that require authentication
 *
 * 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    <NAME> <<EMAIL>>
 * @author    <NAME> <<EMAIL>>
 * @author    <NAME> <<EMAIL>>
 * @author    <NAME> <<EMAIL>>
 * @author    <NAME> <<EMAIL>>
 * @author    mEDI <<EMAIL>>
 * @author    <NAME> <<EMAIL>>
 * @author    <NAME> <<EMAIL>>
 * @copyright 2009-2010 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);
}

require_once INSTALLDIR . '/lib/api.php';
require_once INSTALLDIR . '/lib/apioauth.php';

/**
 * Actions extending this class will require auth
 *
 * @category API
 * @package  StatusNet
 * @author   <NAME>y <<EMAIL>>
 * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
 * @link     http://status.net/
 */

class ApiAuthAction extends ApiAction
{
    var $auth_user_nickname = null;
    var $auth_user_password = <PASSWORD>;
    var $access_token       = null;
    var $oauth_source       = null;

    /**
     * Take arguments for running, and output basic auth header if needed
     *
     * @param array $args $_REQUEST args
     *
     * @return boolean success flag
     *
     */

    function prepare($args)
    {
        parent::prepare($args);

        $this->consumer_key = $this->arg('oauth_consumer_key');
        $this->access_token = $this->arg('oauth_token');

        // NOTE: $this->auth_user has to get set in prepare(), not handle(),
        // because subclasses do stuff with it in their prepares.

        if ($this->requiresAuth()) {
            if (!empty($this->access_token)) {
                $this->checkOAuthRequest();
            } else {
                $this->checkBasicAuthUser(true);
            }
        } else {

            // Check to see if a basic auth user is there even
            // if one's not required

            if (empty($this->access_token)) {
                $this->checkBasicAuthUser(false);
            }
        }

        // Reject API calls with the wrong access level

        if ($this->isReadOnly($args) == false) {
            if ($this->access != self::READ_WRITE) {
                $msg = _('API resource requires read-write access, ' .
                         'but you only have read access.');
                $this->clientError($msg, 401, $this->format);
                exit;
            }
        }

        return true;
    }

    function handle($args)
    {
        parent::handle($args);
    }

    function checkOAuthRequest()
    {
        $datastore   = new ApiStatusNetOAuthDataStore();
        $server      = new OAuthServer($datastore);
        $hmac_method = new OAuthSignatureMethod_HMAC_SHA1();

        $server->add_signature_method($hmac_method);

        ApiOauthAction::cleanRequest();

        try {

            $req  = OAuthRequest::from_request();
            $server->verify_request($req);

            $app = Oauth_application::getByConsumerKey($this->consumer_key);

            if (empty($app)) {

                // this should probably not happen
                common_log(LOG_WARNING,
                           'Couldn\'t find the OAuth app for consumer key: ' .
                           $this->consumer_key);

                throw new OAuthException('No application for that consumer key.');
            }

            // set the source attr

            $this->oauth_source = $app->name;

            $appUser = Oauth_application_user::staticGet('token',
                                                         $this->access_token);

            // XXX: Check that app->id and appUser->application_id and consumer all
            // match?

            if (!empty($appUser)) {

                // If access_type == 0 we have either a request token
                // or a bad / revoked access token

                if ($appUser->access_type != 0) {

                    // Set the access level for the api call

                    $this->access = ($appUser->access_type & Oauth_application::$writeAccess)
                      ? self::READ_WRITE : self::READ_ONLY;

                    if (Event::handle('StartSetApiUser', array(&$user))) {
                        $this->auth_user = User::staticGet('id', $appUser->profile_id);
                        Event::handle('EndSetApiUser', array($user));
                    }

                    $msg = "API OAuth authentication for user '%s' (id: %d) on behalf of " .
                      "application '%s' (id: %d) with %s access.";

                    common_log(LOG_INFO, sprintf($msg,
                                                 $this->auth_user->nickname,
                                                 $this->auth_user->id,
                                                 $app->name,
                                                 $app->id,
                                                 ($this->access = self::READ_WRITE) ?
                                                 'read-write' : 'read-only'
                                                 ));
                    return;
                } else {
                    throw new OAuthException('Bad access token.');
                }
            } else {

                // Also should not happen

                throw new OAuthException('No user for that token.');
            }

        } catch (OAuthException $e) {
            common_log(LOG_WARNING, 'API OAuthException - ' . $e->getMessage());
            $this->showAuthError();
            exit;<commit_msg>Adjust API authentication to also check for OAuth protocol params in the HTTP Authorization header, as defined in OAuth HTTP Authorization Scheme.<commit_after><?php
/**
 * StatusNet, the distributed open-source microblogging tool
 *
 * Base class for API actions that require authentication
 *
 * 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    <NAME> <<EMAIL>>
 * @author    <NAME> <<EMAIL>>
 * @author    <NAME> <<EMAIL>>
 * @author    <NAME> <<EMAIL>>
 * @author    <NAME> <<EMAIL>>
 * @author    mEDI <<EMAIL>>
 * @author    <NAME> <<EMAIL>>
 * @author    <NAME> <<EMAIL>>
 * @copyright 2009-2010 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);
}

require_once INSTALLDIR . '/lib/api.php';
require_once INSTALLDIR . '/lib/apioauth.php';

/**
 * Actions extending this class will require auth
 *
 * @category API
 * @package  StatusNet
 * @author   <NAME> <<EMAIL>>
 * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
 * @link     http://status.net/
 */

class ApiAuthAction extends ApiAction
{
    var $auth_user_nickname = null;
    var $auth_user_password = null;

    /**
     * Take arguments for running, looks for an OAuth request,
     * and outputs basic auth header if needed
     *
     * @param array $args $_REQUEST args
     *
     * @return boolean success flag
     *
     */

    function prepare($args)
    {
        parent::prepare($args);

        // NOTE: $this->auth_user has to get set in prepare(), not handle(),
        // because subclasses do stuff with it in their prepares.

        if ($this->requiresAuth()) {

            $oauthReq = $this->getOAuthRequest();

            if (!$oauthReq) {
                $this->checkBasicAuthUser(true);
            } else {
                $this->checkOAuthRequest($oauthReq);
            }
        } else {

            // Check to see if a basic auth user is there even
            // if one's not required
            $this->checkBasicAuthUser(false);
        }

        // Reject API calls with the wrong access level

        if ($this->isReadOnly($args) == false) {
            if ($this->access != self::READ_WRITE) {
                $msg = _('API resource requires read-write access, ' .
                         'but you only have read access.');
                $this->clientError($msg, 401, $this->format);
                exit;
            }
        }

        return true;
    }

    /**
     * Determine whether the request is an OAuth request.
     * This is to avoid doign any unnecessary DB lookups.
     *
     * @return mixed the OAuthRequest or false
     *
     */

    function getOAuthRequest()
    {
        ApiOauthAction::cleanRequest();

        $req  = OAuthRequest::from_request();

        $consumer    = $req->get_parameter('oauth_consumer_key');
        $accessToken = $req->get_parameter('oauth_token');

        // XXX: Is it good enough to assume it's not meant to be an
        // OAuth request if there is no consumer or token? --Z

        if (empty($consumer) || empty($accessToken)) {
            return false;
        }

        return $req;
    }

    /**
     * Verifies the OAuth request signature, sets the auth user
     * and access type (read-only or read-write)
     *
     * @param OAuthRequest $request the OAuth Request
     *
     * @return nothing
     *
     */

    function checkOAuthRequest($request)
    {
        $datastore   = new ApiStatusNetOAuthDataStore();
        $server      = new OAuthServer($datastore);
        $hmac_method = new OAuthSignatureMethod_HMAC_SHA1();

        $server->add_signature_method($hmac_method);

        try {

            $server->verify_request($request);

            $consumer     = $request->get_parameter('oauth_consumer_key');
            $access_token = $request->get_parameter('oauth_token');

            $app = Oauth_application::getByConsumerKey($consumer);

            if (empty($app)) {
                common_log(LOG_WARNING,
                           'Couldn\'t find the OAuth app for consumer key: ' .
                           $consumer);
                throw new OAuthException('No application for that consumer key.');
            }

            // set the source attr

            $this->oauth_source = $app->name;

            $appUser = Oauth_application_user::staticGet('token', $access_token);

            if (!empty($appUser)) {

                // If access_type == 0 we have either a request token
                // or a bad / revoked access token

                if ($appUser->access_type != 0) {

                    // Set the access level for the api call

                    $this->access = ($appUser->access_type & Oauth_application::$writeAccess)
                      ? self::READ_WRITE : self::READ_ONLY;

                    // Set the auth user

                    if (Event::handle('StartSetApiUser', array(&$user))) {
                        $this->auth_user = User::staticGet('id', $appUser->profile_id);
                        Event::handle('EndSetApiUser', array($user));
                    }

                    $msg = "API OAuth authentication for user '%s' (id: %d) on behalf of " .
                      "application '%s' (id: %d) with %s access.";

                    common_log(LOG_INFO, sprintf($msg,
                                                 $this->auth_user->nickname,
                                                 $this->auth_user->id,
                                                 $app->name,
                                                 $app->id,
                                                 ($this->access = self::READ_WRITE) ?
                                                 'read-write' : 'read-only'
                                                 ));
                } else {
                    throw new OAuthException('Bad access token.');
                }
            } else {

                // Also should not happen

                throw new OAuthException('No user for that token.');
            }

        } catch (OAuthException $e) {
            common_log(LOG_WARNING, 'API OAuthException - ' . $e->getMessage());
            $this->showAuthError();
            exit;
{'fraction_non_alphanumeric': 0.11095474409303015, 'fraction_numerical': 0.0037034293756018073, 'mean_word_length': 1.6875, 'pattern_counts': {'":': 0, '<': 60, '<?xml version=': 0, '>': 128, 'https://': 0, 'lorem ipsum': 0, 'www.': 6, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 30, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '7271001', 'n_tokens_mistral': 3620, 'n_tokens_neox': 3452, 'n_words': 1050}