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/httpclient/ExpectContinue.java

@@ -0,0 +1,185 @@
+/*
+ * Copyright (c) 2018, 2026, 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.
+ */
+
+/*
+ * @test
+ * @summary Basic test for Expect 100-Continue ( HTTP/1.1 only )
+ * @library /test/lib /test/jdk/java/net/httpclient/lib
+ * @build jdk.test.lib.net.SimpleSSLContext jdk.httpclient.test.lib.common.TestServerConfigurator
+ * @modules java.net.http/jdk.internal.net.http.common
+ *          jdk.httpserver
+ * @run junit/othervm ExpectContinue
+ */
+
+import com.sun.net.httpserver.HttpExchange;
+import com.sun.net.httpserver.HttpHandler;
+import com.sun.net.httpserver.HttpServer;
+import com.sun.net.httpserver.HttpsServer;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpRequest.BodyPublishers;
+import java.net.http.HttpResponse;
+import java.net.http.HttpResponse.BodyHandlers;
+import java.util.List;
+import javax.net.ssl.SSLContext;
+
+import jdk.httpclient.test.lib.common.TestServerConfigurator;
+import jdk.test.lib.net.SimpleSSLContext;
+import static java.lang.System.out;
+
+import org.junit.jupiter.api.AfterAll;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.TestInstance;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.MethodSource;
+
+public class ExpectContinue {
+
+    private static final SSLContext sslContext = SimpleSSLContext.findSSLContext();
+    private static HttpServer httpTestServer;         // HTTP/1.1    [ 2 servers ]
+    private static HttpsServer httpsTestServer;       // HTTPS/1.1
+    private static String httpURI;
+    private static String httpsURI;
+
+    public static Object[][] positive() {
+        return new Object[][] {
+                { httpURI,  false, "Billy" },
+                { httpURI,  false, "Bob"   },
+                { httpURI,  true,  "Jimmy" },
+                { httpsURI, true,  "Jack"  },
+        };
+    }
+
+    @ParameterizedTest
+    @MethodSource("positive")
+    void test(String uriString, boolean expectedContinue, String data)
+        throws Exception
+    {
+        out.printf("test(%s, %s, %s): starting%n", uriString, expectedContinue, data);
+        HttpClient client = HttpClient.newBuilder()
+                .sslContext(sslContext)
+                .build();
+
+        URI uri = URI.create(uriString);
+        HttpRequest request = HttpRequest.newBuilder(uri)
+                .expectContinue(expectedContinue)
+                .POST(BodyPublishers.ofString(data))
+                .build();
+
+        HttpResponse<String> response = client.send(request,
+                                                    BodyHandlers.ofString());
+        System.out.println("First response: " + response);
+        assertEquals(200, response.statusCode());
+        assertEquals(data, response.body());
+
+        // again with the same request, to ensure no Expect header duplication
+        response = client.send(request, BodyHandlers.ofString());
+        System.out.println("Second response: " + response);
+        assertEquals(200, response.statusCode());
+        assertEquals(data, response.body());
+    }
+
+    @ParameterizedTest
+    @MethodSource("positive")
+    void testAsync(String uriString, boolean expectedContinue, String data) {
+        out.printf("test(%s, %s, %s): starting%n", uriString, expectedContinue, data);
+        HttpClient client = HttpClient.newBuilder()
+                .sslContext(sslContext)
+                .build();
+
+        URI uri = URI.create(uriString);
+        HttpRequest request = HttpRequest.newBuilder(uri)
+                .expectContinue(expectedContinue)
+                .POST(BodyPublishers.ofString(data))
+                .build();
+
+        HttpResponse<String> response = client.sendAsync(request,
+                BodyHandlers.ofString()).join();
+        System.out.println("First response: " + response);
+        assertEquals(200, response.statusCode());
+        assertEquals(data, response.body());
+
+        // again with the same request, to ensure no Expect header duplication
+        response = client.sendAsync(request, BodyHandlers.ofString()).join();
+        System.out.println("Second response: " + response);
+        assertEquals(200, response.statusCode());
+        assertEquals(data, response.body());
+    }
+
+    // -- Infrastructure
+
+    static String serverAuthority(HttpServer server) {
+        return InetAddress.getLoopbackAddress().getHostName() + ":"
+                + server.getAddress().getPort();
+    }
+
+    @BeforeAll
+    public static void setup() throws Exception {
+        InetSocketAddress sa = new InetSocketAddress(InetAddress.getLoopbackAddress(), 0);
+        httpTestServer = HttpServer.create(sa, 0);
+        httpTestServer.createContext("/http1/ec", new Http1ExpectContinueHandler());
+        httpURI = "http://" + serverAuthority(httpTestServer) + "/http1/ec";
+
+        httpsTestServer = HttpsServer.create(sa, 0);
+        httpsTestServer.setHttpsConfigurator(new TestServerConfigurator(sa.getAddress(), sslContext));
+        httpsTestServer.createContext("/https1/ec", new Http1ExpectContinueHandler());
+        httpsURI = "https://" + serverAuthority(httpsTestServer) + "/https1/ec";
+
+        httpTestServer.start();
+        httpsTestServer.start();
+    }
+
+    @AfterAll
+    public static void teardown() throws Exception {
+        httpTestServer.stop(0);
+        httpsTestServer.stop(0);
+    }
+
+    static class Http1ExpectContinueHandler implements HttpHandler {
+        @Override
+        public void handle(HttpExchange t) throws IOException {
+            try (InputStream is = t.getRequestBody();
+                 OutputStream os = t.getResponseBody()) {
+                byte[] bytes = is.readAllBytes();
+
+                List<String> expect = t.getRequestHeaders().get("Expect");
+                if (expect != null && expect.size() != 1) {
+                    System.out.println("Server: Expect: " + expect);
+                    Throwable ex = new AssertionError("Expect: " + expect);
+                    ex.printStackTrace();
+                    t.sendResponseHeaders(500, 0);
+                } else {
+                    t.sendResponseHeaders(200, bytes.length);
+                    os.write(bytes);
+                }
+            }
+        }
+    }
+}