Add support for mounting Google Drive in external storage UI

4 files changed, 102 insertions, 2 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
diff --git a/apps/files_external/js/google.js b/apps/files_external/js/google.js
new file mode 100644
index 00000000000..0d65cfda011
--- /dev/null
+++ b/apps/files_external/js/google.js
@@ -0,0 +1,48 @@
+$(document).ready(function() {
+	
+	$('#externalStorage tbody tr').each(function() {
+		if ($(this).find('.backend').data('class') == 'OC_Filestorage_Google') {
+			var token = $(this).find('[data-parameter="token"]');
+			var token_secret = $(this).find('[data-parameter="token_secret"]');
+			if ($(token).val() == '' && $(token).val() == '') {
+				$(this).find('.configuration').append('<a class="button google">Grant access</a>');
+			} else  {
+				var params = {};
+				window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi, function(m, key, value) {
+					params[key] = value;
+				});
+				if (params['oauth_token'].length > 1 && decodeURIComponent(params['oauth_token']) == $(token).val() && params['oauth_verifier'].length > 1) {
+					var tr = $(this);
+					$.post(OC.filePath('files_external', 'ajax', 'google.php'), { step: 2, oauth_verifier: params['oauth_verifier'], request_token: $(token).val(), request_token_secret: $(token_secret).val() }, function(result) {
+						if (result && result.status == 'success') {
+							$(token).val(result.access_token);
+							$(token_secret).val(result.access_token_secret);
+							OC.MountConfig.saveStorage(tr);
+						} else {
+							OC.dialogs.alert(result.data.message, 'Error configuring Google Drive storage');
+						}
+					});
+				}
+			}
+			return false;
+		}
+	});
+	
+	$('.google').live('click', function(event) {
+		event.preventDefault();
+		var tr = $(this).parent().parent();
+		var token = $(this).parent().find('[data-parameter="token"]');
+		var token_secret = $(this).parent().find('[data-parameter="token_secret"]');
+		$.post(OC.filePath('files_external', 'ajax', 'google.php'), { step: 1, callback: window.location.href }, function(result) {
+			if (result && result.status == 'success') {
+				$(token).val(result.data.request_token);
+				$(token_secret).val(result.data.request_token_secret);
+				OC.MountConfig.saveStorage(tr);
+				window.location = result.data.url;
+			} else {
+				OC.dialogs.alert(result.data.message, 'Error configuring Google Drive storage');
+			}
+		});
+	});
+	
+});
diff --git a/apps/files_external/lib/config.php b/apps/files_external/lib/config.php
index b2ebcd96fcc..870c13b5aed 100755
--- a/apps/files_external/lib/config.php
+++ b/apps/files_external/lib/config.php
@@ -41,8 +41,9 @@ class OC_Mount_Config {
 		return array(
 			'OC_Filestorage_Local' => array('backend' => 'Local', 'configuration' => array('datadir' => 'Location')),
 			'OC_Filestorage_AmazonS3' => array('backend' => 'Amazon S3', 'configuration' => array('key' => 'Key', 'secret' => '*Secret', 'bucket' => 'Bucket')),
-			'OC_Filestorage_Dropbox' => array('backend' => 'Dropbox', 'configuration' => array('app_key' => 'App key', 'app_secret' => 'App secret', 'token' => '#token', 'token_secret' => '#token_secret' ), 'custom' => 'dropbox'),
+			'OC_Filestorage_Dropbox' => array('backend' => 'Dropbox', 'configuration' => array('app_key' => 'App key', 'app_secret' => 'App secret', 'token' => '#token', 'token_secret' => '#token_secret'), 'custom' => 'dropbox'),
 			'OC_Filestorage_FTP' => array('backend' => 'FTP', 'configuration' => array('host' => 'URL', 'user' => 'Username', 'password' => '*Password', 'root' => '&Root', 'secure' => '!Secure ftps://')),
+			'OC_Filestorage_Google' => array('backend' => 'Google Drive', 'configuration' => array('token' => '#token', 'token_secret' => '#token secret'), 'custom' => 'google'),
 			'OC_Filestorage_SWIFT' => array('backend' => 'OpenStack Swift', 'configuration' => array('host' => 'URL', 'user' => 'Username', 'token' => '*Token', 'root' => '&Root', 'secure' => '!Secure ftps://')),
 			'OC_Filestorage_SMB' => array('backend' => 'SMB', 'configuration' => array('host' => 'URL', 'user' => 'Username', 'password' => '*Password', 'root' => '&Root')),
 			'OC_Filestorage_DAV' => array('backend' => 'WebDAV', 'configuration' => array('host' => 'URL', 'user' => 'Username', 'password' => '*Password', 'root' => '&Root', 'secure' => '!Secure https://'))
diff --git a/apps/files_external/lib/google.php b/apps/files_external/lib/google.php
index d2285a6d82c..c2a4af0ff8a 100644
--- a/apps/files_external/lib/google.php
+++ b/apps/files_external/lib/google.php
@@ -20,7 +20,7 @@
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-require_once 'common.inc.php';
+require_once 'Google/common.inc.php';
 
 class OC_Filestorage_Google extends OC_Filestorage_Common {