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<?php
require_once 'Google/common.inc.php';
OCP\JSON::checkAppEnabled('files_external');
OCP\JSON::checkLoggedIn();
$consumer = new OAuthConsumer('anonymous', 'anonymous');
$sigMethod = new OAuthSignatureMethod_HMAC_SHA1();
if (isset($_POST['step'])) {
switch ($_POST['step']) {
case 1:
if (isset($_POST['callback'])) {
$callback = $_POST['callback'];
} else {
$callback = null;
}
$scope = 'https://docs.google.com/feeds/ https://docs.googleusercontent.com/ https://spreadsheets.google.com/feeds/';
$url = 'https://www.google.com/accounts/OAuthGetRequestToken?scope='.urlencode($scope);
$params = array('scope' => $scope, 'oauth_callback' => $callback);
$request = OAuthRequest::from_consumer_and_token($consumer, null, 'GET', $url, $params);
$request->sign_request($sigMethod, $consumer, null);
$response = send_signed_request('GET', $url, array($request->to_header()), null, false);
$token = array();
parse_str($response, $token);
if (isset($token['oauth_token']) && isset($token['oauth_token_secret'])) {
$authUrl = 'https://www.google.com/accounts/OAuthAuthorizeToken?oauth_token='.$token['oauth_token'];
OCP\JSON::success(array('data' => array('url' => $authUrl, 'request_token' => $token['oauth_token'], 'request_token_secret' => $token['oauth_token_secret'])));
} else {
OCP\JSON::error(array('data' => array('message' => 'Fetching request tokens failed. Error: '.$response)));
}
break;
case 2:
if (isset($_POST['oauth_verifier']) && isset($_POST['request_token']) && isset($_POST['request_token_secret'])) {
$token = new OAuthToken($_POST['request_token'], $_POST['request_token_secret']);
$url = 'https://www.google.com/accounts/OAuthGetAccessToken';
$request = OAuthRequest::from_consumer_and_token($consumer, $token, 'GET', $url, array('oauth_verifier' => $_POST['oauth_verifier']));
$request->sign_request($sigMethod, $consumer, $token);
$response = send_signed_request('GET', $url, array($request->to_header()), null, false);
$token = array();
parse_str($response, $token);
if (isset($token['oauth_token']) && isset($token['oauth_token_secret'])) {
OCP\JSON::success(array('access_token' => $token['oauth_token'], 'access_token_secret' => $token['oauth_token_secret']));
} else {
OCP\JSON::error(array('data' => array('message' => 'Fetching access tokens failed. Error: '.$response)));
}
}
break;
}
}
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