[tomcat] branch 8.5.x updated: Fix 66530 - Regression in fix for BZ 66442. Ensure count is decremented

[markt]

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

markt pushed a commit to branch 8.5.x
in repository https://gitbox.apache.org/repos/asf/tomcat.git


The following commit(s) were added to refs/heads/8.5.x by this push:
     new 32518738e9 Fix 66530 - Regression in fix for BZ 66442. Ensure count is 
decremented
32518738e9 is described below

commit 32518738e9b86d22dae748b6cd9f3846832fbd34
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Fri Mar 17 09:23:05 2023 +0000

    Fix 66530 - Regression in fix for BZ 66442. Ensure count is decremented
    
    https://bz.apache.org/bugzilla/show_bug.cgi?id=66530
---
 java/org/apache/coyote/http2/Http2UpgradeHandler.java | 15 ++++++++++-----
 webapps/docs/changelog.xml                            |  7 +++++++
 2 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/java/org/apache/coyote/http2/Http2UpgradeHandler.java 
b/java/org/apache/coyote/http2/Http2UpgradeHandler.java
index 08e1b5f084..17c53583c8 100644
--- a/java/org/apache/coyote/http2/Http2UpgradeHandler.java
+++ b/java/org/apache/coyote/http2/Http2UpgradeHandler.java
@@ -689,7 +689,7 @@ class Http2UpgradeHandler extends AbstractStream implements 
InternalHttpUpgradeH
         }
         stream.sentHeaders();
         if (endOfStream) {
-            stream.sentEndOfStream();
+            sentEndOfStream(stream);
         }
     }
 
@@ -795,10 +795,7 @@ class Http2UpgradeHandler extends AbstractStream 
implements InternalHttpUpgradeH
         header[3] = FrameType.DATA.getIdByte();
         if (finished) {
             header[4] = FLAG_END_OF_STREAM;
-            stream.sentEndOfStream();
-            if (!stream.isActive()) {
-                
setConnectionTimeoutForStreamCount(activeRemoteStreamCount.decrementAndGet());
-            }
+            sentEndOfStream(stream);
         }
         if (writable) {
             ByteUtil.set31Bits(header, 5, stream.getIdAsInt());
@@ -818,6 +815,14 @@ class Http2UpgradeHandler extends AbstractStream 
implements InternalHttpUpgradeH
     }
 
 
+    protected void sentEndOfStream(Stream stream) {
+        stream.sentEndOfStream();
+        if (!stream.isActive()) {
+            
setConnectionTimeoutForStreamCount(activeRemoteStreamCount.decrementAndGet());
+        }
+    }
+
+
     /*
      * Handles an I/O error on the socket underlying the HTTP/2 connection 
when it is triggered by application code
      * (usually reading the request or writing the response). Such I/O errors 
are fatal so the connection is closed. The
diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
index 4cca125306..36a64c242d 100644
--- a/webapps/docs/changelog.xml
+++ b/webapps/docs/changelog.xml
@@ -160,6 +160,13 @@
         <bug>66512</bug>: Align AJP handling of invalid HTTP response headers
         (they are now removed from the response) with HTTP. (markt)
       </fix>
+      <fix>
+        <bug>66530</bug>: Correct a regression in the fix for bug
+        <bug>66442</bug> that meant that streams without a response body did 
not
+        decrement the active stream count when completing leading to
+        <code>ERR_HTTP2_SERVER_REFUSED_STREAM</code> for some connections.
+        (markt)
+      </fix>
     </changelog>
   </subsection>
   <subsection name="WebSocket">


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