More lenient test, using dynamic local port.

This commit is contained in:
Harald Kuhr 2023-05-25 12:16:38 +02:00
parent d35d67651f
commit 783c28ae0e

View File

@ -35,8 +35,11 @@ import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
@ -50,6 +53,7 @@ import java.util.Iterator;
import javax.imageio.ImageIO;
import javax.imageio.stream.ImageInputStream;
import com.twelvemonkeys.imageio.stream.DirectImageInputStream;
import org.junit.Test;
import com.twelvemonkeys.imageio.metadata.CompoundDirectory;
@ -490,12 +494,15 @@ public class XMPReaderTest extends MetadataReaderAbstractTest {
assertThat(exif.getEntryById("http://ns.adobe.com/exif/1.0/NativeDigest"), hasValue("36864,40960,40961,37121,37122,40962,40963,37510,40964,36867,36868,33434,33437,34850,34852,34855,34856,37377,37378,37379,37380,37381,37382,37383,37384,37385,37386,37396,41483,41484,41486,41487,41488,41492,41493,41495,41728,41729,41730,41985,41986,41987,41988,41989,41990,41991,41992,41993,41994,41995,41996,42016,0,2,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,20,22,23,24,25,26,27,28,30;A7F21D25E2C562F152B2C4ECC9E534DA"));
}
@Test(timeout = 1500L)
@Test(timeout = 2500L)
public void testNoExternalRequest() throws Exception {
// TODO: Use dynamic port?
try (HTTPServer server = new HTTPServer(7777)) {
try {
createReader().read(getResourceAsIIS("/xmp/xmp-jpeg-xxe.xml"));
String maliciousXML = resourceAsString("/xmp/xmp-jpeg-xxe.xml");
try (HTTPServer server = new HTTPServer()) {
String dynamicXML = maliciousXML.replace("http://localhost:7777/", "http://localhost:" + server.port() + "/");
try (DirectImageInputStream input = new DirectImageInputStream(new ByteArrayInputStream(dynamicXML.getBytes(StandardCharsets.UTF_8)));) {
createReader().read(input);
} catch (IOException ioe) {
if (ioe.getMessage().contains("501")) {
throw new AssertionError("Reading should not cause external requests", ioe);
@ -507,12 +514,26 @@ public class XMPReaderTest extends MetadataReaderAbstractTest {
}
}
private String resourceAsString(String name) throws IOException {
StringBuilder builder = new StringBuilder(1024);
try (BufferedReader reader = new BufferedReader(new InputStreamReader(getResource(name).openStream(), StandardCharsets.UTF_8))) {
String line;
while ((line = reader.readLine()) != null) {
builder.append(line)
.append('\n');
}
}
return builder.toString();
}
private static class HTTPServer implements AutoCloseable {
private final ServerSocket server;
private final Thread thread;
HTTPServer(int port) throws IOException {
server = new ServerSocket(port, 1);
HTTPServer() throws IOException {
server = new ServerSocket(0, 1);
thread = new Thread(new Runnable() {
@Override public void run() {
serve();
@ -521,6 +542,10 @@ public class XMPReaderTest extends MetadataReaderAbstractTest {
thread.start();
}
public final int port() {
return server.getLocalPort();
}
private void serve() {
try {
Socket client = server.accept();