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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\Lib;
/**
* Storage base class that implements note updating
*
* @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 OAuth
{
/**
* Token data store
*
* @var Token_Storage
*/
protected $tokens;
public function setDeps(Dependencies $deps)
{
$this->tokens = $deps->tokens;
}
/**
* Register callbacks for the oauth dance.
*/
public function registerHandler(\OAuthProvider $provider)
{
$provider->consumerHandler(array($this, 'lookupConsumer'));
$provider->timestampNonceHandler(array($this, 'timestampNonceChecker'));
return $this;
}
public function registerVerificationTokenHandler(\OAuthProvider $provider)
{
$provider->tokenHandler(array($this, 'verifyTokenHandler'));
return $this;
}
public function registerAccessTokenHandler(\OAuthProvider $provider)
{
$provider->tokenHandler(array($this, 'accessTokenHandler'));
return $this;
}
public function validateToken($tokenKey)
{
return (bool) preg_match('#^[a-z0-9]+$#', $tokenKey);
}
public function lookupConsumer(\OAuthProvider $provider)
{
//tomboy assumes secret==key=="anyone"
$provider->consumer_secret = $provider->consumer_key;//'anyone';
$provider->addRequiredParameter('oauth_callback');
return OAUTH_OK;
}
public function timestampNonceChecker(\OAuthProvider $provider)
{
//var_dump($provider->nonce, $provider->timestamp);
//OAUTH_BAD_NONCE
//OAUTH_BAD_TIMESTAMP
return OAUTH_OK;
}
public function verifyTokenHandler(\OAuthProvider $provider)
{
$token = $this->tokens->load('verify', $provider->token);
if ($provider->verifier == '') {
return OAUTH_VERIFIER_INVALID;
}
if ($provider->verifier != $token->verifier) {
return OAUTH_VERIFIER_INVALID;
}
$provider->token_secret = $token->secret;
return OAUTH_OK;
}
public function accessTokenHandler(\OAuthProvider $provider)
{
$token = $this->tokens->load('access', $provider->token);
$provider->token_secret = $token->secret;
return OAUTH_OK;
}
public function verifyOAuthUser($username, $url)
{
try {
$provider = OAuth::getProvider();
$this->registerHandler($provider);
$this->registerAccessTokenHandler($provider);
//do not use "user" in signature
$provider->setParam('user', null);
$provider->checkOAuthRequest($url);
$token = $this->tokens->load('access', $provider->token);
if ($token->user != $username) {
errorOut('Invalid user');
}
} catch (\OAuthException $e) {
$this->error($e);
}
}
public function error(\OAuthException $e)
{
header('HTTP/1.0 400 Bad Request');
//header('Content-type: application/x-www-form-urlencoded');
echo \OAuthProvider::reportProblem($e);
//var_dump($e);
exit(1);
}
/**
* Get a new oauth provider instance.
* Used to work around the fastcgi bug in oauthprovider.
*
* @return \OAuthProvider
*/
public static function getProvider()
{
//$_SERVER['REDIRECT_HTTP_AUTHORIZATION'] = $_SERVER['HTTP_AUTHORIZATION'];
//unset($_SERVER['HTTP_AUTHORIZATION']);
$params = array();
if (!isset($_SERVER['HTTP_AUTHORIZATION'])
&& isset($_SERVER['REDIRECT_HTTP_AUTHORIZATION'])
) {
//FastCgi puts the headers in REDIRECT_HTTP_AUTHORIZATION,
// but the oauth extension does not read that.
// we have to parse the parameters manually
$regex = "/(oauth_[a-z_-]*)=(?:\"([^\"]*)\"|([^,]*))/";
preg_match_all(
$regex, $_SERVER['REDIRECT_HTTP_AUTHORIZATION'], $matches
);
foreach ($matches[1] as $key => $paramName) {
$params[$paramName] = urldecode($matches[2][$key]);
}
}
return new \OAuthProvider($params);
}
}
?>
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