This is an automated email from the ASF dual-hosted git repository.
markt pushed a commit to branch 9.0.x
in repository https://gitbox.apache.org/repos/asf/tomcat.git
The following commit(s) were added to refs/heads/9.0.x by this push:
new 7a2d8818fc Ensure IOException on request read always triggers error
handling
7a2d8818fc is described below
commit 7a2d8818fcea0b51747a67af9510ce7977245ebd
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Wed Nov 8 15:25:17 2023 +0000
Ensure IOException on request read always triggers error handling
---
.../org/apache/catalina/connector/InputBuffer.java | 14 ++++
.../http11/filters/TestChunkedInputFilter.java | 77 ++++++++++++++++++++++
webapps/docs/changelog.xml | 5 ++
3 files changed, 96 insertions(+)
diff --git a/java/org/apache/catalina/connector/InputBuffer.java
b/java/org/apache/catalina/connector/InputBuffer.java
index 59e85c8ca6..013b4a49a1 100644
--- a/java/org/apache/catalina/connector/InputBuffer.java
+++ b/java/org/apache/catalina/connector/InputBuffer.java
@@ -29,6 +29,7 @@ import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import javax.servlet.ReadListener;
+import javax.servlet.RequestDispatcher;
import org.apache.catalina.security.SecurityUtil;
import org.apache.coyote.ActionCode;
@@ -295,6 +296,7 @@ public class InputBuffer extends Reader implements
ByteChunk.ByteInputChannel, A
*
* @throws IOException An underlying IOException occurred
*/
+ @SuppressWarnings("deprecation")
@Override
public int realReadBytes() throws IOException {
if (closed) {
@@ -308,11 +310,23 @@ public class InputBuffer extends Reader implements
ByteChunk.ByteInputChannel, A
try {
return coyoteRequest.doRead(this);
} catch (BadRequestException bre) {
+ // Set flag used by asynchronous processing to detect errors on
non-container threads
coyoteRequest.setErrorException(bre);
+ // In synchronous processing, this exception may be swallowed by
the application so set error flags here.
+ coyoteRequest.setAttribute(RequestDispatcher.ERROR_EXCEPTION, bre);
+ coyoteRequest.getResponse().setStatus(400);
+ coyoteRequest.getResponse().setError();
+ // Make the exception visible to the application
throw bre;
} catch (IOException ioe) {
+ // Set flag used by asynchronous processing to detect errors on
non-container threads
coyoteRequest.setErrorException(ioe);
+ // In synchronous processing, this exception may be swallowed by
the application so set error flags here.
+ coyoteRequest.setAttribute(RequestDispatcher.ERROR_EXCEPTION, ioe);
+ coyoteRequest.getResponse().setStatus(400);
+ coyoteRequest.getResponse().setError();
// Any other IOException on a read is almost always due to the
remote client aborting the request.
+ // Make the exception visible to the application
throw new ClientAbortException(ioe);
}
}
diff --git a/test/org/apache/coyote/http11/filters/TestChunkedInputFilter.java
b/test/org/apache/coyote/http11/filters/TestChunkedInputFilter.java
index 4c91e131f5..d568e90ec8 100644
--- a/test/org/apache/coyote/http11/filters/TestChunkedInputFilter.java
+++ b/test/org/apache/coyote/http11/filters/TestChunkedInputFilter.java
@@ -428,6 +428,83 @@ public class TestChunkedInputFilter extends TomcatBaseTest
{
}
}
+
+ @Test
+ public void testTrailerHeaderNameNotTokenThrowException() throws Exception
{
+ doTestTrailerHeaderNameNotToken(false);
+ }
+
+ @Test
+ public void testTrailerHeaderNameNotTokenSwallowException() throws
Exception {
+ doTestTrailerHeaderNameNotToken(true);
+ }
+
+ private void doTestTrailerHeaderNameNotToken(boolean swallowException)
throws Exception {
+
+ // Setup Tomcat instance
+ Tomcat tomcat = getTomcatInstance();
+
+ // No file system docBase required
+ Context ctx = tomcat.addContext("", null);
+
+ Tomcat.addServlet(ctx, "servlet", new
SwallowBodyServlet(swallowException));
+ ctx.addServletMappingDecoded("/", "servlet");
+
+ tomcat.start();
+
+ String[] request = new String[]{
+ "POST / HTTP/1.1" + SimpleHttpClient.CRLF +
+ "Host: localhost" + SimpleHttpClient.CRLF +
+ "Transfer-encoding: chunked" + SimpleHttpClient.CRLF +
+ "Content-Type: application/x-www-form-urlencoded" +
SimpleHttpClient.CRLF +
+ "Connection: close" + SimpleHttpClient.CRLF +
+ SimpleHttpClient.CRLF +
+ "3" + SimpleHttpClient.CRLF +
+ "a=0" + SimpleHttpClient.CRLF +
+ "4" + SimpleHttpClient.CRLF +
+ "&b=1" + SimpleHttpClient.CRLF +
+ "0" + SimpleHttpClient.CRLF +
+ "x@trailer: Test" + SimpleHttpClient.CRLF +
+ SimpleHttpClient.CRLF };
+
+ TrailerClient client = new
TrailerClient(tomcat.getConnector().getLocalPort());
+ client.setRequest(request);
+
+ client.connect();
+ client.processRequest();
+ // Expected to fail because of invalid trailer header name
+ Assert.assertTrue(client.getResponseLine(), client.isResponse400());
+ }
+
+ private static class SwallowBodyServlet extends HttpServlet {
+ private static final long serialVersionUID = 1L;
+
+ private final boolean swallowException;
+
+ SwallowBodyServlet(boolean swallowException) {
+ this.swallowException = swallowException;
+ }
+
+ @Override
+ protected void doPost(HttpServletRequest req, HttpServletResponse resp)
+ throws ServletException, IOException {
+ resp.setContentType("text/plain");
+ PrintWriter pw = resp.getWriter();
+
+ // Read the body
+ InputStream is = req.getInputStream();
+ try {
+ while (is.read() > -1) {
+ }
+ pw.write("OK");
+ } catch (IOException ioe) {
+ if (!swallowException) {
+ throw ioe;
+ }
+ }
+ }
+ }
+
private static class EchoHeaderServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
index 683cdd061d..e79fdaa902 100644
--- a/webapps/docs/changelog.xml
+++ b/webapps/docs/changelog.xml
@@ -149,6 +149,11 @@
Use a 400 status code to report an error due to a bad request (e.g. an
invalid trailer header) rather than a 500 status code. (markt)
</fix>
+ <fix>
+ Ensure that an <code>IOException</code> during the reading of the
+ request triggers always error handling, regardless of whether the
+ application swallows the exception. (markt)
+ </fix>
</changelog>
</subsection>
<subsection name="Coyote">
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