/* goodB2G() - use BadSource and GoodSink */ private static void GoodB2G() { string data; data = ""; /* Initialize data */ /* read input from WebClient */ { try { using (WebClient client = new WebClient()) { using (StreamReader sr = new StreamReader(client.OpenRead("http://www.example.org/"))) { /* POTENTIAL FLAW: Read data from a web server with WebClient */ /* This will be reading the first "line" of the response body, * which could be very long if there are no newlines in the HTML */ data = sr.ReadLine(); } } } catch (IOException exceptIO) { IO.Logger.Log(NLog.LogLevel.Warn, exceptIO, "Error with stream reading"); } } LinkedList <string> dataLinkedList = new LinkedList <string>(); dataLinkedList.AddLast(data); dataLinkedList.AddLast(data); dataLinkedList.AddLast(data); CWE643_Xpath_Injection__NetClient_73b.GoodB2GSink(dataLinkedList); }
/* goodG2B() - use GoodSource and BadSink */ private static void GoodG2B() { string data; /* FIX: Use a hardcoded string */ data = "foo"; LinkedList <string> dataLinkedList = new LinkedList <string>(); dataLinkedList.AddLast(data); dataLinkedList.AddLast(data); dataLinkedList.AddLast(data); CWE643_Xpath_Injection__NetClient_73b.GoodG2BSink(dataLinkedList); }