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/offline/OfflineTesting.java

@@ -0,0 +1,203 @@
+/*
+ * 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 Demonstrates how to achieve testing without network connections
+ * @build DelegatingHttpClient FixedHttpResponse FixedResponseHttpClient
+ * @run junit/othervm OfflineTesting
+ */
+
+import java.io.IOException;
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpHeaders;
+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.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.function.BiPredicate;
+import static java.lang.String.format;
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static java.util.Objects.requireNonNull;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
+
+public class OfflineTesting {
+
+    private static HttpClient getClient() {
+        // be sure to return the appropriate client when testing
+        //return HttpClient.newHttpClient();
+        return FixedResponseHttpClient.createClientFrom(
+                HttpClient.newBuilder(),
+                200,
+                headersOf("Server", "nginx",
+                          "Content-Type", "text/html"),
+                "A response message");
+    }
+
+    @Test
+    public void testResponseAsString() {
+        try (HttpClient client = getClient()) {
+
+            HttpRequest request = HttpRequest.newBuilder()
+                    .uri(URI.create("https://openjdk.org/"))
+                    .build();
+
+            client.sendAsync(request, BodyHandlers.ofString())
+                    .thenAccept(response -> {
+                        System.out.println("response: " + response);
+                        assertEquals(200, response.statusCode());
+                        assertTrue(response.headers().firstValue("Server").isPresent());
+                        assertEquals("A response message", response.body());
+                    })
+                    .join();
+        }
+    }
+
+    @Test
+    public void testResponseAsByteArray() {
+        try (HttpClient client = getClient()) {
+
+            HttpRequest request = HttpRequest.newBuilder()
+                    .uri(URI.create("https://openjdk.org/"))
+                    .build();
+
+            client.sendAsync(request, BodyHandlers.ofByteArray())
+                    .thenAccept(response -> {
+                        System.out.println("response: " + response);
+                        assertEquals(200, response.statusCode());
+                        assertTrue(response.headers().firstValue("Content-Type").isPresent());
+                        Assertions.assertArrayEquals("A response message".getBytes(UTF_8), response.body());
+                    })
+                    .join();
+        }
+    }
+
+    @Test
+    public void testFileNotFound() {
+        //HttpClient client = HttpClient.newHttpClient();
+        HttpClient fixedClient = FixedResponseHttpClient.createClientFrom(
+                HttpClient.newBuilder(),
+                404,
+                headersOf("Connection",  "keep-alive",
+                          "Content-Length", "162",
+                          "Content-Type", "text/html",
+                          "Date", "Mon, 15 Jan 2018 15:01:16 GMT",
+                          "Server", "nginx"),
+                "<html>\n" +
+                "<head><title>404 Not Found</title></head>\n" +
+                "<body bgcolor=\"white\">\n" +
+                "<center><h1>404 Not Found</h1></center>\n" +
+                "<hr><center>nginx</center>\n" +
+                "</body>\n" +
+                "</html>");
+
+        HttpRequest request = HttpRequest.newBuilder()
+                .uri(URI.create("https://openjdk.org/notFound"))
+                .build();
+
+        try (var client = fixedClient) {
+            client.sendAsync(request, BodyHandlers.ofString())
+                    .thenAccept(response -> {
+                        assertEquals(404, response.statusCode());
+                        response.headers().firstValue("Content-Type")
+                                .ifPresentOrElse(type -> assertEquals("text/html", type),
+                                        () -> fail("Content-Type not present"));
+                        assertTrue(response.body().contains("404 Not Found"));
+                    })
+                    .join();
+        }
+        assertTrue(fixedClient.isTerminated());
+    }
+
+    @Test
+    public void testEcho() {
+        try (HttpClient client = FixedResponseHttpClient.createEchoClient(
+                HttpClient.newBuilder(),
+                200,
+                headersOf("Connection",  "keep-alive"))) {
+
+            HttpRequest request = HttpRequest.newBuilder()
+                    .uri(URI.create("https://openjdk.org/echo"))
+                    .POST(BodyPublishers.ofString("Hello World"))
+                    .build();
+
+            client.sendAsync(request, BodyHandlers.ofString())
+                    .thenAccept(response -> {
+                        System.out.println("response: " + response);
+                        assertEquals(200, response.statusCode());
+                        assertEquals("Hello World", response.body());
+                    })
+                    .join();
+        }
+    }
+
+    @Test
+    public void testEchoBlocking() throws IOException, InterruptedException {
+        try (HttpClient client = FixedResponseHttpClient.createEchoClient(
+                HttpClient.newBuilder(),
+                200,
+                headersOf("Connection",  "keep-alive"))) {
+
+            HttpRequest request = HttpRequest.newBuilder()
+                    .uri(URI.create("https://openjdk.org/echo"))
+                    .POST(BodyPublishers.ofString("Hello chegar!!"))
+                    .build();
+
+            HttpResponse<String> response = client.send(request, BodyHandlers.ofString());
+            System.out.println("response: " + response);
+            assertEquals(200, response.statusCode());
+            assertEquals("Hello chegar!!", response.body());
+        }
+    }
+
+    // ---
+
+    public static IllegalArgumentException newIAE(String message, Object... args) {
+        return new IllegalArgumentException(format(message, args));
+    }
+
+    static final BiPredicate<String,String> ACCEPT_ALL = (x, y) -> true;
+
+    static HttpHeaders headersOf(String... params) {
+        Map<String,List<String>> map = new HashMap<>();
+        requireNonNull(params);
+        if (params.length == 0 || params.length % 2 != 0) {
+            throw newIAE("wrong number, %d, of parameters", params.length);
+        }
+        for (int i = 0; i < params.length; i += 2) {
+            String name  = params[i];
+            String value = params[i + 1];
+            map.put(name, List.of(value));
+        }
+        return HttpHeaders.of(map, ACCEPT_ALL);
+    }
+}