forked from GNUsocial/gnu-social
414 lines
14 KiB
PHP
414 lines
14 KiB
PHP
<?php
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/*
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2008, 2009, StatusNet, Inc.
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*
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* 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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if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
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require_once INSTALLDIR . '/lib/oauthstore.php';
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// @todo FIXME: Class documentation missing.
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class ApiStatusNetOAuthDataStore extends StatusNetOAuthDataStore
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{
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function lookup_consumer($consumerKey)
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{
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$con = Consumer::staticGet('consumer_key', $consumerKey);
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if (!$con) {
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// Create an anon consumer and anon application if one
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// doesn't exist already
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if ($consumerKey == 'anonymous') {
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common_debug("API OAuth - creating anonymous consumer");
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$con = new Consumer();
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$con->consumer_key = $consumerKey;
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$con->consumer_secret = $consumerKey;
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$con->created = common_sql_now();
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$result = $con->insert();
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if (!$result) {
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// TRANS: Server error displayed when trying to create an anynymous OAuth consumer.
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$this->serverError(_('Could not create anonymous consumer.'));
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}
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$app = Oauth_application::getByConsumerKey('anonymous');
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if (!$app) {
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common_debug("API OAuth - creating anonymous application");
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$app = new OAuth_application();
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$app->owner = 1; // XXX: What to do here?
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$app->consumer_key = $con->consumer_key;
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$app->name = 'anonymous';
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$app->icon = 'default-avatar-stream.png'; // XXX: Fix this!
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$app->description = "An anonymous application";
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// XXX: allow the user to set the access type when
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// authorizing? Currently we default to r+w for anonymous
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// OAuth client applications
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$app->access_type = 3; // read + write
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$app->type = 2; // desktop
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$app->created = common_sql_now();
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$id = $app->insert();
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if (!$id) {
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// TRANS: Server error displayed when trying to create an anynymous OAuth application.
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$this->serverError(_("Could not create anonymous OAuth application."));
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}
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}
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} else {
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return null;
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}
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}
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return new OAuthConsumer(
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$con->consumer_key,
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$con->consumer_secret
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);
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}
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function getAppByRequestToken($token_key)
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{
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// Look up the full req token
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$req_token = $this->lookup_token(
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null,
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'request',
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$token_key
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);
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if (empty($req_token)) {
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common_debug("Couldn't get request token from oauth datastore");
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return null;
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}
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// Look up the full Token
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$token = new Token();
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$token->tok = $req_token->key;
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$result = $token->find(true);
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if (empty($result)) {
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common_debug('Couldn\'t find req token in the token table.');
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return null;
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}
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// Look up the app
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$app = new Oauth_application();
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$app->consumer_key = $token->consumer_key;
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$result = $app->find(true);
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if (!empty($result)) {
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return $app;
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} else {
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common_debug("Couldn't find the app!");
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return null;
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}
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}
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function new_access_token($token, $consumer, $verifier)
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{
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common_debug(
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sprintf(
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"New access token from request token %s, consumer %s and verifier %s ",
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$token,
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$consumer,
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$verifier
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),
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__FILE__
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);
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$rt = new Token();
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$rt->consumer_key = $consumer->key;
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$rt->tok = $token->key;
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$rt->type = 0; // request
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$app = Oauth_application::getByConsumerKey($consumer->key);
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assert(!empty($app));
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if ($rt->find(true) && $rt->state == 1 && $rt->verifier == $verifier) { // authorized
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common_debug('Request token found.', __FILE__);
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// find the app and profile associated with this token
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$tokenAssoc = Oauth_token_association::staticGet('token', $rt->tok);
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if (!$tokenAssoc) {
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throw new Exception(
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// TRANS: Exception thrown when no token association could be found.
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_('Could not find a profile and application associated with the request token.')
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);
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}
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// Check to see if we have previously issued an access token for
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// this application and profile; if so we can just return the
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// existing access token. That seems to be the best practice. It
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// makes it so users only have to authorize the app once per
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// machine.
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$appUser = new Oauth_application_user();
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$appUser->application_id = $app->id;
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$appUser->profile_id = $tokenAssoc->profile_id;
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$result = $appUser->find(true);
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if (!empty($result)) {
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common_log(LOG_INFO,
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sprintf(
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"Existing access token found for application %s, profile %s.",
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$app->id,
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$tokenAssoc->profile_id
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)
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);
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$at = null;
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// Special case: we used to store request tokens in the
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// Oauth_application_user record, and the access_type would
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// always be 0 (no access) as a failsafe until an access
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// token was issued and replaced the request token. There could
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// be a few old Oauth_application_user records storing request
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// tokens still around, and we don't want to accidentally
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// return a useless request token instead of a new access
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// token. So if we find one, we generate a new access token
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// and update the existing Oauth_application_user record before
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// returning the new access token. This should be rare.
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if ($appUser->access_type == 0) {
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$at = $this->generateNewAccessToken($consumer, $rt, $verifier);
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$this->updateAppUser($appUser, $app, $at);
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} else {
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$at = new Token();
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// fetch the full access token
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$at->consumer_key = $consumer->key;
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$at->tok = $appUser->token;
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$result = $at->find(true);
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if (!$result) {
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throw new Exception(
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// TRANS: Exception thrown when no access token can be issued.
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_('Could not issue access token.')
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);
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}
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}
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// Yay, we can re-issue the access token
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return new OAuthToken($at->tok, $at->secret);
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} else {
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common_log(LOG_INFO,
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sprintf(
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"Creating new access token for application %s, profile %s.",
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$app->id,
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$tokenAssoc->profile_id
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)
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);
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$at = $this->generateNewAccessToken($consumer, $rt, $verifier);
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$this->newAppUser($tokenAssoc, $app, $at);
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// Okay, good
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return new OAuthToken($at->tok, $at->secret);
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}
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} else {
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// the token was not authorized or not verfied
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common_log(
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LOG_INFO,
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sprintf(
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"API OAuth - Attempt to exchange unauthorized or unverified request token %s for an access token.",
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$rt->tok
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)
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);
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return null;
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}
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}
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/*
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* Generate a new access token and save it to the database
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*
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* @param Consumer $consumer the OAuth consumer
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* @param Token $rt the authorized request token
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* @param string $verifier the OAuth 1.0a verifier
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*
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* @access private
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*
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* @return Token $at the new access token
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*/
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private function generateNewAccessToken($consumer, $rt, $verifier)
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{
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$at = new Token();
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$at->consumer_key = $consumer->key;
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$at->tok = common_good_rand(16);
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$at->secret = common_good_rand(16);
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$at->type = 1; // access
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$at->verifier = $verifier;
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$at->verified_callback = $rt->verified_callback; // 1.0a
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$at->created = common_sql_now();
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if (!$at->insert()) {
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$e = $at->_lastError;
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common_debug('access token "' . $at->tok . '" not inserted: "' . $e->message . '"', __FILE__);
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return null;
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} else {
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common_debug('access token "' . $at->tok . '" inserted', __FILE__);
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// burn the old one
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$orig_rt = clone($rt);
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$rt->state = 2; // used
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if (!$rt->update($orig_rt)) {
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return null;
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}
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common_debug('request token "' . $rt->tok . '" updated', __FILE__);
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}
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return $at;
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}
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/*
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* Add a new app user (Oauth_application_user) record
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*
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* @param Oauth_token_association $tokenAssoc token-to-app association
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* @param Oauth_application $app the OAuth client app
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* @param Token $at the access token
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*
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* @access private
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*
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* @return void
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*/
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private function newAppUser($tokenAssoc, $app, $at)
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{
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$appUser = new Oauth_application_user();
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$appUser->profile_id = $tokenAssoc->profile_id;
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$appUser->application_id = $app->id;
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$appUser->access_type = $app->access_type;
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$appUser->token = $at->tok;
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$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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throw new Exception(
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// TRANS: Exception thrown when a database error occurs.
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_('Database error inserting OAuth application user.')
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);
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}
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}
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/*
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* Update an existing app user (Oauth_application_user) record
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*
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* @param Oauth_application_user $appUser existing app user rec
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* @param Oauth_application $app the OAuth client app
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* @param Token $at the access token
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*
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* @access private
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*
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* @return void
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*/
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private function updateAppUser($appUser, $app, $at)
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{
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$original = clone($appUser);
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$appUser->access_type = $app->access_type;
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$appUser->token = $at->tok;
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$result = $appUser->update($original);
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if (!$result) {
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common_log_db_error($appUser, 'UPDATE', __FILE__);
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throw new Exception(
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// TRANS: Exception thrown when a database error occurs.
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_('Database error updating OAuth application user.')
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);
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}
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}
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/**
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* Revoke specified access token
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*
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* Revokes the token specified by $token_key.
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* Throws exceptions in case of error.
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*
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* @param string $token_key the token to be revoked
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* @param int $type type of token (0 = req, 1 = access)
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*
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* @access public
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*
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* @return void
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*/
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public function revoke_token($token_key, $type = 0) {
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$rt = new Token();
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$rt->tok = $token_key;
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$rt->type = $type;
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$rt->state = 0;
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if (!$rt->find(true)) {
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// TRANS: Exception thrown when an attempt is made to revoke an unknown token.
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throw new Exception(_('Tried to revoke unknown token.'));
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}
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if (!$rt->delete()) {
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// TRANS: Exception thrown when an attempt is made to remove a revoked token.
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throw new Exception(_('Failed to delete revoked token.'));
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}
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}
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/*
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* Create a new request token. Overrided to support OAuth 1.0a callback
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*
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* @param OAuthConsumer $consumer the OAuth Consumer for this token
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* @param string $callback the verified OAuth callback URL
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*
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* @return OAuthToken $token a new unauthorized OAuth request token
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*/
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function new_request_token($consumer, $callback)
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{
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$t = new Token();
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$t->consumer_key = $consumer->key;
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$t->tok = common_good_rand(16);
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$t->secret = common_good_rand(16);
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$t->type = 0; // request
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$t->state = 0; // unauthorized
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$t->verified_callback = $callback;
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if ($callback === 'oob') {
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// six digit pin
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$t->verifier = mt_rand(0, 9999999);
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} else {
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$t->verifier = common_good_rand(8);
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}
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$t->created = DB_DataObject_Cast::dateTime();
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if (!$t->insert()) {
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return null;
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} else {
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return new OAuthToken($t->tok, $t->secret);
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}
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}
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}
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