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remm pushed a commit to branch 10.1.x
in repository https://gitbox.apache.org/repos/asf/tomcat.git

commit 6f85b32c545539f36266ef83218d85c9656ae6a9
Author: remm <r...@apache.org>
AuthorDate: Wed Mar 6 11:44:14 2024 +0100

    Add new suspendWrappedResponseAfterForward
    
    This allow configuring the suspend after forward unwrapping.
---
 java/org/apache/catalina/Context.java                   | 17 +++++++++++++++++
 .../org/apache/catalina/core/ApplicationDispatcher.java |  3 ++-
 java/org/apache/catalina/core/StandardContext.java      | 14 ++++++++++++++
 java/org/apache/catalina/startup/FailedContext.java     |  9 +++++++++
 test/org/apache/tomcat/unittest/TesterContext.java      |  5 +++++
 webapps/docs/changelog.xml                              |  5 ++++-
 webapps/docs/config/context.xml                         |  7 +++++++
 7 files changed, 58 insertions(+), 2 deletions(-)

diff --git a/java/org/apache/catalina/Context.java 
b/java/org/apache/catalina/Context.java
index fb50454dcc..2f66fb46c5 100644
--- a/java/org/apache/catalina/Context.java
+++ b/java/org/apache/catalina/Context.java
@@ -1994,6 +1994,23 @@ public interface Context extends Container, ContextBind {
     void setDispatcherWrapsSameObject(boolean dispatcherWrapsSameObject);
 
 
+    /**
+     * If this is <code>true</code>, then following a forward the response will
+     * be unwrapped to suspend the Catalina response instead of simply closing
+     * the top level response. The default value is <code>true</code>.
+     * @return the flag value
+     */
+    boolean getSuspendWrappedResponseAfterForward();
+
+
+    /**
+     * Allows unwrapping the response object to suspend the response following
+     * a forward.
+     * @param suspendWrappedResponseAfterForward the new flag value
+     */
+    void setSuspendWrappedResponseAfterForward(boolean 
suspendWrappedResponseAfterForward);
+
+
     /**
      * Find configuration file with the specified path, first looking into the
      * webapp resources, then delegating to
diff --git a/java/org/apache/catalina/core/ApplicationDispatcher.java 
b/java/org/apache/catalina/core/ApplicationDispatcher.java
index eff85041f6..abb7b2fe4d 100644
--- a/java/org/apache/catalina/core/ApplicationDispatcher.java
+++ b/java/org/apache/catalina/core/ApplicationDispatcher.java
@@ -355,7 +355,8 @@ final class ApplicationDispatcher implements 
AsyncDispatcher, RequestDispatcher
         if (response instanceof ResponseFacade) {
             finished = true;
             ((ResponseFacade) response).finish();
-        } else if (response instanceof ServletResponseWrapper) {
+        } else if (context.getSuspendWrappedResponseAfterForward()
+                && response instanceof ServletResponseWrapper) {
             ServletResponse baseResponse = response;
             do {
                 baseResponse = ((ServletResponseWrapper) 
baseResponse).getResponse();
diff --git a/java/org/apache/catalina/core/StandardContext.java 
b/java/org/apache/catalina/core/StandardContext.java
index 698dadf132..4f13b69a3f 100644
--- a/java/org/apache/catalina/core/StandardContext.java
+++ b/java/org/apache/catalina/core/StandardContext.java
@@ -798,6 +798,8 @@ public class StandardContext extends ContainerBase 
implements Context, Notificat
 
     private boolean dispatcherWrapsSameObject = 
Globals.STRICT_SERVLET_COMPLIANCE;
 
+    private boolean suspendWrappedResponseAfterForward = false;
+
     private boolean parallelAnnotationScanning = false;
 
     private boolean useBloomFilterForArchives = false;
@@ -881,6 +883,18 @@ public class StandardContext extends ContainerBase 
implements Context, Notificat
     }
 
 
+    @Override
+    public boolean getSuspendWrappedResponseAfterForward() {
+        return suspendWrappedResponseAfterForward;
+    }
+
+
+    @Override
+    public void setSuspendWrappedResponseAfterForward(boolean 
suspendWrappedResponseAfterForward) {
+        this.suspendWrappedResponseAfterForward = 
suspendWrappedResponseAfterForward;
+    }
+
+
     @Override
     public String getRequestCharacterEncoding() {
         return requestEncoding;
diff --git a/java/org/apache/catalina/startup/FailedContext.java 
b/java/org/apache/catalina/startup/FailedContext.java
index eb249a1d16..6ca2063a46 100644
--- a/java/org/apache/catalina/startup/FailedContext.java
+++ b/java/org/apache/catalina/startup/FailedContext.java
@@ -1425,4 +1425,13 @@ public class FailedContext extends LifecycleMBeanBase 
implements Context {
     public void setUseBloomFilterForArchives(boolean 
useBloomFilterForArchives) {
     }
 
+    @Override
+    public boolean getSuspendWrappedResponseAfterForward() {
+        return false;
+    }
+
+    @Override
+    public void setSuspendWrappedResponseAfterForward(boolean 
suspendWrappedResponseAfterForward) {
+    }
+
 }
\ No newline at end of file
diff --git a/test/org/apache/tomcat/unittest/TesterContext.java 
b/test/org/apache/tomcat/unittest/TesterContext.java
index 1b980556cd..3c7a5cdf0c 100644
--- a/test/org/apache/tomcat/unittest/TesterContext.java
+++ b/test/org/apache/tomcat/unittest/TesterContext.java
@@ -1327,4 +1327,9 @@ public class TesterContext implements Context {
         this.useBloomFilterForArchives = useBloomFilterForArchives;
     }
 
+    @Override
+    public boolean getSuspendWrappedResponseAfterForward() { return true; }
+    @Override
+    public void setSuspendWrappedResponseAfterForward(boolean 
suspendWrappedResponseAfterForward) {}
+
 }
diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
index a3738aaac3..5d0b29f31c 100644
--- a/webapps/docs/changelog.xml
+++ b/webapps/docs/changelog.xml
@@ -130,7 +130,10 @@
       </fix>
       <fix>
         After forwarding a request, attempt to unwrap the response in order to
-        suspend it, instead of simply closing it if it was wrapped. (remm)
+        suspend it, instead of simply closing it if it was wrapped. Add a new
+        <code>suspendWrappedResponseAfterForward</code> boolean attribute on
+        <code>Context</code> to control the bahavior, defaulting to
+        <code>false</code>. (remm)
       </fix>
     </changelog>
   </subsection>
diff --git a/webapps/docs/config/context.xml b/webapps/docs/config/context.xml
index c233df716f..5097e59f0f 100644
--- a/webapps/docs/config/context.xml
+++ b/webapps/docs/config/context.xml
@@ -596,6 +596,13 @@
         attribute is <code>false</code>.</p>
       </attribute>
 
+      <attribute name="suspendWrappedResponseAfterForward" required="false">
+        <p>If the value of this flag is <code>true</code>, Catalina will
+        suspend wrapped responses after a forward, instead of closing them.
+        If not specified, the default value of the flag is
+        <code>false</code>.</p>
+      </attribute>
+
       <attribute name="swallowAbortedUploads" required="false">
         <p>Set to <code>false</code> if Tomcat should <b>not</b> read any
         additional request body data for aborted uploads and instead abort the


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