undefect. CWE-407 — 63 sites patched across 27 ecosystems

Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.

test/jdk/java/net/URLConnection/ContentHandlers/test.template

@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+import java.net.ContentHandlerFactory;
+import java.net.URL;
+import java.net.URLConnection;
+import java.net.URLStreamHandler;
+import java.net.URLStreamHandlerFactory;
+
+public class Test {
+
+    public static void main(String[] args) throws Exception {
+        if (args.length > 0) {
+            String fqn = args[0];
+
+            @SuppressWarnings("unchecked")
+            Class<? extends ContentHandlerFactory> c =
+                    (Class<? extends ContentHandlerFactory>) Class.forName(fqn);
+
+            ContentHandlerFactory f = c.newInstance();
+
+            URLConnection.setContentHandlerFactory(f);
+        }
+
+        // One does not simply use a ContentHandler...
+        // From an end user perspective ContentHandler is used indirectly
+        // and it's more like SPI rather than API. So there's a certain amount
+        // of preparations needs to be done beforehand.
+
+        URLStreamHandlerFactory streamHandlerFactory =
+                (protocol) ->
+                        new URLStreamHandler() {
+                            @Override
+                            protected URLConnection openConnection(URL u) {
+                                return newUrlConnection(u);
+                            }
+                        };
+
+        URL.setURLStreamHandlerFactory(streamHandlerFactory);
+
+        // Finally
+        Object content = new URL("whatever:").getContent();
+
+        System.out.println("Content class is: " + content.getClass());
+    }
+
+    private static URLConnection newUrlConnection(URL u) {
+        return new URLConnection(u) {
+            @Override public void connect() { }
+
+            @Override
+            public InputStream getInputStream() { return null; }
+
+            @Override public String getContentType() { return "text/plain"; }
+        };
+    }
+}