From 364c74df930633bf897cacf391f6dc24dbc183b8 Mon Sep 17 00:00:00 2001
From: Alexander Tkachev
Date: Tue, 26 Jul 2016 14:13:38 +0600
Subject: CLOUD: Update DropboxStorage

JSON checks added.
---
 backends/cloud/dropbox/dropboxstorage.cpp | 39 +++++++++++++++++++------------
 1 file changed, 24 insertions(+), 15 deletions(-)

diff --git a/backends/cloud/dropbox/dropboxstorage.cpp b/backends/cloud/dropbox/dropboxstorage.cpp
index 789f6b497c..d12070316b 100644
--- a/backends/cloud/dropbox/dropboxstorage.cpp
+++ b/backends/cloud/dropbox/dropboxstorage.cpp
@@ -92,25 +92,34 @@ void DropboxStorage::getAccessToken(Common::String code) {
 
 void DropboxStorage::codeFlowComplete(Networking::JsonResponse response) {
 	Common::JSONValue *json = (Common::JSONValue *)response.value;
-	if (json) {
-		Common::JSONObject result = json->asObject();
-		if (!result.contains("access_token") || !result.contains("uid")) {
-			warning("DropboxStorage: bad response, no token/uid passed");
-			debug(9, "%s", json->stringify(true).c_str());
-			CloudMan.removeStorage(this);
-		} else {
-			_token = result.getVal("access_token")->asString();
-			_uid = result.getVal("uid")->asString();
-			ConfMan.removeKey("dropbox_code", ConfMan.kCloudDomain);
-			CloudMan.replaceStorage(this, kStorageDropboxId);
-			ConfMan.flushToDisk();
-		}
+	if (json == nullptr) {
+		debug(9, "DropboxStorage::codeFlowComplete: got NULL instead of JSON!");
+		CloudMan.removeStorage(this);
+		return;
+	}
 
+	if (!json->isObject()) {
+		debug(9, "DropboxStorage::codeFlowComplete: Passed JSON is not an object!");
+		CloudMan.removeStorage(this);
 		delete json;
-	} else {
-		debug(9, "DropboxStorage::codeFlowComplete: got NULL instead of JSON!");
+		return;
+	}
+
+	Common::JSONObject result = json->asObject();
+	if (!Networking::CurlJsonRequest::jsonContainsString(result, "access_token", "DropboxStorage::codeFlowComplete") ||
+		!Networking::CurlJsonRequest::jsonContainsString(result, "uid", "DropboxStorage::codeFlowComplete")) {
+		warning("DropboxStorage: bad response, no token/uid passed");
+		debug(9, "%s", json->stringify(true).c_str());
 		CloudMan.removeStorage(this);
+	} else {
+		_token = result.getVal("access_token")->asString();
+		_uid = result.getVal("uid")->asString();
+		ConfMan.removeKey("dropbox_code", ConfMan.kCloudDomain);
+		CloudMan.replaceStorage(this, kStorageDropboxId);
+		ConfMan.flushToDisk();
 	}
+
+	delete json;
 }
 
 void DropboxStorage::codeFlowFailed(Networking::ErrorResponse error) {
-- 
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