45 lines
1.0 KiB
Plaintext
45 lines
1.0 KiB
Plaintext
include::../description.adoc[]
|
|
|
|
== Noncompliant Code Example
|
|
|
|
[source,java]
|
|
----
|
|
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
|
|
URL url = new URL(req.getParameter("url"));
|
|
HttpURLConnection conn = (HttpURLConnection) url.openConnection(); // Noncompliant
|
|
}
|
|
----
|
|
|
|
== Compliant Solution
|
|
|
|
[source,java]
|
|
----
|
|
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
|
|
String[] urlWhiteList = { "example.com", "www.example.com" };
|
|
|
|
String inputUrl = req.getParameter("url");
|
|
|
|
URI uri = new URI(inputUrl);
|
|
String remoteHost = uri.getHost();
|
|
|
|
if (!urlWhiteList.contains(remoteHost))
|
|
throw new IOException();
|
|
|
|
URL url = uri.toURL();
|
|
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
|
|
}
|
|
----
|
|
|
|
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[]
|