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<?php
/**
* Part of grauphel
*
* PHP version 5
*
* @category Tools
* @package Grauphel
* @author Christian Weiske <cweiske@cweiske.de>
* @copyright 2014 Christian Weiske
* @license http://www.gnu.org/licenses/agpl.html GNU AGPL v3
* @link http://cweiske.de/grauphel.htm
*/
namespace OCA\Grauphel\Controller;
use \OCP\AppFramework\Controller;
/**
* OAuth handling
*
* @category Tools
* @package Grauphel
* @author Christian Weiske <cweiske@cweiske.de>
* @copyright 2014 Christian Weiske
* @license http://www.gnu.org/licenses/agpl.html GNU AGPL v3
* @version Release: @package_version@
* @link http://cweiske.de/grauphel.htm
*/
class OAuthController extends Controller
{
/**
* Handle out an access token after verifying the verification token
* OAuth step 3 of 3
*/
public function accessTokenAction()
{
$oauth = new OAuth();
$oauth->setDeps($this->deps);
try {
$provider = new \OAuthProvider();
$oauth->registerHandler($provider)
->registerVerificationTokenHandler($provider);
$provider->checkOAuthRequest($this->deps->urlGen->oauthAccessToken());
$token = $this->deps->tokens->loadAndDelete('verify', $provider->token);
$newToken = new OAuth_Token('access');
$newToken->tokenKey = 'a' . bin2hex($provider->generateToken(8));
$newToken->secret = 's' . bin2hex($provider->generateToken(8));
$newToken->user = $token->user;
$this->deps->tokens->store($newToken);
$this->deps->renderer->sendFormData(
array(
'oauth_token' => $newToken->tokenKey,
'oauth_token_secret' => $newToken->secret,
)
);
exit(0);
} catch (\OAuthException $e) {
$oauth->error($e);
}
}
/**
* Log the user in and let him authorize that the app may access notes
* OAuth step 2 of 3
*/
public function authorizeAction()
{
$oauth = new OAuth();
$oauth->setDeps($this->deps);
if (!isset($_REQUEST['oauth_token'])) {
$this->deps->renderer->errorOut('oauth_token missing');
}
if (!$oauth->validateToken($_REQUEST['oauth_token'])) {
$this->deps->renderer->errorOut('Invalid token string');
}
$reqToken = $_REQUEST['oauth_token'];
try {
$token = $this->deps->tokens->load('temp', $reqToken);
} catch (OAuth_Exception $e) {
$this->deps->renderer->errorOut($e->getMessage());
}
$authState = $this->deps->frontend->doAuthorize(
$this->deps->urlGen->current()
);
if ($authState === null) {
//this should not happen; doAuthorize() must block
exit(1);
}
try {
$token = $this->deps->tokens->loadAndDelete('temp', $reqToken);
} catch (OAuth_Exception $e) {
$this->deps->renderer->errorOut($e->getMessage());
}
if ($authState === false) {
//user declined
//http://wiki.oauth.net/w/page/12238543/ProblemReporting
$callback = $this->deps->urlGen->addParams(
$token->callback,
array(
'oauth_token' => $token->tokenKey,
'oauth_problem' => 'permission_denied',
)
);
header('Location: ' . $callback, true, 302);
exit(0);
}
//the user is logged in and authorized
$provider = new \OAuthProvider();
$newToken = new OAuth_Token('verify');
$newToken->tokenKey = $token->tokenKey;
$newToken->secret = $token->secret;
$newToken->verifier = 'v' . bin2hex($provider->generateToken(8));
$newToken->user = $this->deps->frontend->getUser();
$this->deps->tokens->store($newToken);
//redirect
//FIXME: if no callback is given, show the token to the user
$callback = $this->deps->urlGen->addParams(
$token->callback,
array(
'oauth_token' => $newToken->tokenKey,
'oauth_verifier' => $newToken->verifier
)
);
header('Location: ' . $callback, true, 302);
exit();
}
/**
* Create and return a request token.
* OAuth step 1 of 3
*/
public function requestTokenAction()
{
$oauth = new OAuth();
$oauth->setDeps($this->deps);
try {
$provider = new \OAuthProvider();
$oauth->registerHandler($provider);
$provider->isRequestTokenEndpoint(true);
$provider->checkOAuthRequest($this->deps->urlGen->oauthRequestToken());
//store token + callback URI for later
$token = new OAuth_Token('temp');
$token->tokenKey = 'r' . bin2hex($provider->generateToken(8));
$token->secret = 's' . bin2hex($provider->generateToken(8));
$token->callback = $provider->callback;
$this->deps->tokens->store($token);
$this->deps->renderer->sendFormData(
array(
'oauth_token' => $token->tokenKey,
'oauth_token_secret' => $token->secret,
'oauth_callback_confirmed' => 'TRUE'
)
);
} catch (\OAuthException $e) {
$oauth->error($e);
}
}
}
?>
|
