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/com/sun/net/httpserver/EchoHandler.java

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2005, 2025, 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.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.StandardCharsets;
+
+import com.sun.net.httpserver.Headers;
+import com.sun.net.httpserver.HttpExchange;
+import com.sun.net.httpserver.HttpHandler;
+import static com.sun.net.httpserver.HttpExchange.RSPBODY_EMPTY;
+import static com.sun.net.httpserver.HttpExchange.RSPBODY_CHUNKED;
+
+/**
+ * Implements a basic static EchoHandler for an HTTP server
+ */
+public class EchoHandler implements HttpHandler {
+    public void handle (HttpExchange t)
+        throws IOException
+    {
+        InputStream is = t.getRequestBody();
+        Headers map = t.getRequestHeaders();
+        String fixedrequest = map.getFirst ("XFixed");
+
+        // return the number of bytes received (no echo)
+        String summary = map.getFirst ("XSummary");
+        OutputStream os = t.getResponseBody();
+        byte[] in;
+        in = is.readAllBytes();
+        if (summary != null) {
+            in = Integer.toString(in.length).getBytes(StandardCharsets.UTF_8);
+        }
+        if (fixedrequest != null) {
+            t.sendResponseHeaders(200, in.length == 0 ? RSPBODY_EMPTY : in.length);
+        } else {
+            t.sendResponseHeaders(200, RSPBODY_CHUNKED);
+        }
+        os.write(in);
+        close(t, os);
+        close(t, is);
+    }
+
+    protected void close(OutputStream os) throws IOException {
+        os.close();
+    }
+    protected void close(InputStream is) throws IOException {
+        is.close();
+    }
+    protected void close(HttpExchange t, OutputStream os) throws IOException {
+        close(os);
+    }
+    protected void close(HttpExchange t, InputStream is) throws IOException {
+        close(is);
+    }
+}