rspec/rules/S5334/java/rule.adoc

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== Noncompliant Code Example

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protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
  String input = req.getParameter("input");

  ScriptEngineManager manager = new ScriptEngineManager();
  ScriptEngine engine = manager.getEngineByName("JavaScript");
  engine.eval(input); // Noncompliant
}
----

== Compliant Solution

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protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
  String input = req.getParameter("input");

  // Match the input against a whitelist
  if (!whiteList.contains(input))
    throw new IOException();

  ScriptEngineManager manager = new ScriptEngineManager();
  ScriptEngine engine = manager.getEngineByName("JavaScript");
  engine.eval(input);
}
----

include::../see.adoc[]

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== Comments And Links
(visible only on this page)

include::comments-and-links.adoc[]
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