3 files changed, 51 insertions, 55 deletions

diff --git a/backends/cloud/box/boxlistdirectorybyidrequest.cpp b/backends/cloud/box/boxlistdirectorybyidrequest.cpp
index 3e518066f2..776ee71d64 100644
--- a/backends/cloud/box/boxlistdirectorybyidrequest.cpp
+++ b/backends/cloud/box/boxlistdirectorybyidrequest.cpp
@@ -125,63 +125,16 @@ void BoxListDirectoryByIdRequest::responseCallback(Networking::JsonResponse resp
 
 		Common::JSONArray items = responseObject.getVal("entries")->asArray();
 		for (uint32 i = 0; i < items.size(); ++i) {
-			if (!items[i]->isObject()) {
-				warning("BoxListDirectoryByIdRequest: \"entries\" item is not an object!");
-				debug(9, "%s", items[i]->stringify(true).c_str());
-				continue;
-			}
+			if (!Networking::CurlJsonRequest::jsonIsObject(items[i], "BoxListDirectoryByIdRequest")) continue;
 
 			Common::JSONObject item = items[i]->asObject();
 
-			if (!item.contains("id") || !item.getVal("id")->isString()) {
-				warning("BoxListDirectoryByIdRequest: \"entries\" item's \"id\"!");
-				if (item.contains("id")) {
-					debug(9, "%s", item.getVal("id")->stringify(true).c_str());
-				} else {
-					debug(9, "(not available)");
-				}
-				continue;
-			}
-
-			if (!item.contains("name") || !item.getVal("name")->isString()) {
-				warning("BoxListDirectoryByIdRequest: \"entries\" item's \"name\"!");
-				if (item.contains("name")) {
-					debug(9, "%s", item.getVal("name")->stringify(true).c_str());
-				} else {
-					debug(9, "(not available)");
-				}
-				continue;
-			}
-
-			if (!item.contains("type") || !item.getVal("type")->isString()) {
-				warning("BoxListDirectoryByIdRequest: \"entries\" item's \"type\"!");
-				if (item.contains("type")) {
-					debug(9, "%s", item.getVal("type")->stringify(true).c_str());
-				} else {
-					debug(9, "(not available)");
-				}
-				continue;
-			}
-
-			if (!item.contains("size") || (!item.getVal("size")->isString() && !item.getVal("size")->isIntegerNumber())) {
-				warning("BoxListDirectoryByIdRequest: \"entries\" item's \"size\"!");
-				if (item.contains("size")) {
-					debug(9, "%s", item.getVal("size")->stringify(true).c_str());
-				} else {
-					debug(9, "(not available)");
-				}
-				continue;
-			}
-
-			if (!item.contains("modified_at") || !item.getVal("modified_at")->isString()) {
-				warning("BoxListDirectoryByIdRequest: \"entries\" item's \"modified_at\"!");
-				if (item.contains("modified_at")) {
-					debug(9, "%s", item.getVal("modified_at")->stringify(true).c_str());
-				} else {
-					debug(9, "(not available)");
-				}
-				continue;
-			}
+			if (!Networking::CurlJsonRequest::jsonContainsString(item, "id", "BoxListDirectoryByIdRequest")) continue;
+			if (!Networking::CurlJsonRequest::jsonContainsString(item, "name", "BoxListDirectoryByIdRequest")) continue;
+			if (!Networking::CurlJsonRequest::jsonContainsString(item, "type", "BoxListDirectoryByIdRequest")) continue;
+			if (!Networking::CurlJsonRequest::jsonContainsString(item, "modified_at", "BoxListDirectoryByIdRequest")) continue;
+			if (!Networking::CurlJsonRequest::jsonContainsString(item, "size", "BoxListDirectoryByIdRequest") &&
+				!Networking::CurlJsonRequest::jsonContainsIntegerNumber(item, "size", "BoxListDirectoryByIdRequest")) continue;
 
 			Common::String id = item.getVal("id")->asString();
 			Common::String name = item.getVal("name")->asString();
diff --git a/backends/networking/curl/curljsonrequest.cpp b/backends/networking/curl/curljsonrequest.cpp
index 875f5e7fbd..7f7cbca2e0 100644
--- a/backends/networking/curl/curljsonrequest.cpp
+++ b/backends/networking/curl/curljsonrequest.cpp
@@ -31,7 +31,7 @@
 
 namespace Networking {
 
-CurlJsonRequest::CurlJsonRequest(JsonCallback cb, ErrorCallback ecb, Common::String url):
+CurlJsonRequest::CurlJsonRequest(JsonCallback cb, ErrorCallback ecb, Common::String url) :
 	CurlRequest(nullptr, ecb, url), _jsonCallback(cb), _contentsStream(DisposeAfterUse::YES),
 	_buffer(new byte[CURL_JSON_REQUEST_BUFFER_SIZE]) {}
 
@@ -97,4 +97,43 @@ void CurlJsonRequest::finishJson(Common::JSONValue *json) {
 	else delete json;
 }
 
+bool CurlJsonRequest::jsonIsObject(Common::JSONValue *item, const char *warningPrefix) {
+	if (item == nullptr) {
+		warning("%s: passed item is NULL", warningPrefix);
+		return false;
+	}
+
+	if (item->isObject()) return true;
+
+	warning("%s: passed item is not an object!", warningPrefix);
+	debug(9, "%s", item->stringify(true).c_str());
+	return false;
+}
+
+bool CurlJsonRequest::jsonContainsString(Common::JSONObject &item, const char *key, const char *warningPrefix) {
+	if (!item.contains(key)) {
+		warning("%s: passed item misses the \"%s\" attribute!", warningPrefix, key);
+		return false;
+	}
+
+	if (item.getVal(key)->isString()) return true;
+
+	warning("%s: passed item's \"%s\" attribute is not a string!", warningPrefix, key);
+	debug(9, "%s", item.getVal(key)->stringify(true).c_str());
+	return false;
+}
+
+bool CurlJsonRequest::jsonContainsIntegerNumber(Common::JSONObject &item, const char *key, const char *warningPrefix) {
+	if (!item.contains(key)) {
+		warning("%s: passed item misses the \"%s\" attribute!", warningPrefix, key);
+		return false;
+	}
+
+	if (item.getVal(key)->isIntegerNumber()) return true;
+
+	warning("%s: passed item's \"%s\" attribute is not an integer!", warningPrefix, key);
+	debug(9, "%s", item.getVal(key)->stringify(true).c_str());
+	return false;
+}
+
 } // End of namespace Networking
diff --git a/backends/networking/curl/curljsonrequest.h b/backends/networking/curl/curljsonrequest.h
index 7858c89b80..1d1409efc8 100644
--- a/backends/networking/curl/curljsonrequest.h
+++ b/backends/networking/curl/curljsonrequest.h
@@ -52,6 +52,10 @@ public:
 
 	virtual void handle();
 	virtual void restart();
+
+	static bool jsonIsObject(Common::JSONValue *item, const char *warningPrefix);
+	static bool jsonContainsString(Common::JSONObject &item, const char *key, const char *warningPrefix);
+	static bool jsonContainsIntegerNumber(Common::JSONObject &item, const char *key, const char *warningPrefix);
 };
 
 } // End of namespace Networking