Add support for mounting Google Drive in external storage UI

1 files changed, 51 insertions, 0 deletions

diff --git a/apps/files_external/ajax/google.php b/apps/files_external/ajax/google.php
new file mode 100644
index 00000000000..23ecfc3708d
--- /dev/null
+++ b/apps/files_external/ajax/google.php
@@ -0,0 +1,51 @@
+<?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;
+	}
+}
+
+?>
\ No newline at end of file