rspec/rules/S5144/java/rule.adoc

include::../description.adoc[]

== Noncompliant Code Example

----
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
  URL url = new URL(req.getParameter("url"));
  HttpURLConnection conn = (HttpURLConnection) url.openConnection(); // Noncompliant
}
----

== Compliant Solution

----
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
  String urlWhiteListed = "https://example.com/";
  String str = req.getParameter("url");
  if (!str.startsWith(urlWhiteListed))
    throw new IOException();

  URL url2 = new URL(str);
  HttpURLConnection conn2 = (HttpURLConnection) url2.openConnection(); // compliant
}
----

include::../see.adoc[]
ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

include::../message.adoc[]

include::../highlighting.adoc[]

endif::env-github,rspecator-view[]