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Posted to dev@tomcat.apache.org by ma...@apache.org on 2022/12/16 20:37:21 UTC

[tomcat] branch main updated: Fix dropped HTTP/2 responses.

This is an automated email from the ASF dual-hosted git repository.

markt pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/tomcat.git


The following commit(s) were added to refs/heads/main by this push:
     new 1e7e121cef Fix dropped HTTP/2 responses.
1e7e121cef is described below

commit 1e7e121cefe6dae4ef03bc046b9575192ff13cc1
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Fri Dec 16 20:37:03 2022 +0000

    Fix dropped HTTP/2 responses.
    
    When resetting an HTTP/2 stream because the final response has been
    generated before the request has been fully read, use the HTTP/2 error
    code NO_ERROR so that client does not discard the response.
    
    Based on a suggestion by Lorenzo Dalla Vecchia.
---
 java/org/apache/coyote/http2/StreamProcessor.java | 2 +-
 test/org/apache/coyote/http2/TestFlowControl.java | 2 +-
 webapps/docs/changelog.xml                        | 6 ++++++
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/java/org/apache/coyote/http2/StreamProcessor.java b/java/org/apache/coyote/http2/StreamProcessor.java
index 5572e070c9..3afda9037b 100644
--- a/java/org/apache/coyote/http2/StreamProcessor.java
+++ b/java/org/apache/coyote/http2/StreamProcessor.java
@@ -97,7 +97,7 @@ class StreamProcessor extends AbstractProcessor {
                             // send any more data on this stream (reset).
                             StreamException se = new StreamException(
                                     sm.getString("streamProcessor.cancel", stream.getConnectionId(),
-                                            stream.getIdAsString()), Http2Error.CANCEL, stream.getIdAsInt());
+                                            stream.getIdAsString()), Http2Error.NO_ERROR, stream.getIdAsInt());
                             stream.close(se);
                         } else if (!getErrorState().isConnectionIoAllowed()) {
                             ConnectionException ce = new ConnectionException(sm.getString(
diff --git a/test/org/apache/coyote/http2/TestFlowControl.java b/test/org/apache/coyote/http2/TestFlowControl.java
index 60269389e1..8d45ce86d7 100644
--- a/test/org/apache/coyote/http2/TestFlowControl.java
+++ b/test/org/apache/coyote/http2/TestFlowControl.java
@@ -109,7 +109,7 @@ public class TestFlowControl extends Http2TestBase {
                     "3-HeadersEnd\n" +
                     "3-Body-" + contentLength + "\n" +
                     "3-EndOfStream\n" +
-                    "3-RST-[8]\n", output.getTrace());
+                    "3-RST-[0]\n", output.getTrace());
             output.clearTrace();
 
             // Write 3*16k=48k of request body
diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
index 378bbc5ac0..f7685e8a37 100644
--- a/webapps/docs/changelog.xml
+++ b/webapps/docs/changelog.xml
@@ -136,6 +136,12 @@
         Add a parser for the <code>priority</code> HTTP header field defined in
         RFC 9218. (markt)
       </add>
+      <fix>
+        When resetting an HTTP/2 stream because the final response has been
+        generated before the request has been fully read, use the HTTP/2 error
+        code <code>NO_ERROR</code> so that client does not discard the response.
+        Based on a suggestion by Lorenzo Dalla Vecchia. (markt)
+      </fix>
     </changelog>
   </subsection>
   <subsection name="Other">


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