Update client startup for new nodes

- Still needs to get IP from linux nodes
- Other tasks still, idk

Client/utilities/utilities.js

@@ -261,4 +261,24 @@ function convertRadioPresetsToOP25Config(presetName){
 
     log.DEBUG(updatedOP25Config);
     return updatedOP25Config;
-}
+}
+
+// Convert a buffer from the DB to JSON object
+exports.BufferToJson = (buffer) => {
+    return JSON.parse(buffer.toString());
+}
+
+/**
+ * Check to see if the input is a valid JSON string
+ * 
+ * @param {*} str The string to check for valud JSON
+ * @returns {true|false}
+ */
+exports.isJsonString = (str) => {
+    try {
+        JSON.parse(str);
+    } catch (e) {
+        return false;
+    }
+    return true;
+}