Invoke request_body_filter of modules for proxies

.bleep

@@ -1 +1 @@
-9ec5f295aba1ec889914afb8c3cbb44724a516f1
+00504ca4d524990b3a1b53bbeb42824c3fbdcfe9

pingora-proxy/src/proxy_h1.rs

@@ -546,6 +546,11 @@ impl<SV> HttpProxy<SV> {
         // affected by the request_body_filter
         let end_of_body = end_of_body || data.is_none();
 
+        session
+            .downstream_modules_ctx
+            .request_body_filter(&mut data, end_of_body)
+            .await?;
+
         self.inner
             .request_body_filter(session, &mut data, end_of_body, ctx)
             .await?;

pingora-proxy/src/proxy_h2.rs

@@ -525,6 +525,11 @@ impl<SV> HttpProxy<SV> {
         SV: ProxyHttp + Send + Sync,
         SV::CTX: Send + Sync,
     {
+        session
+            .downstream_modules_ctx
+            .request_body_filter(&mut data, end_of_body)
+            .await?;
+
         self.inner
             .request_body_filter(session, &mut data, end_of_body, ctx)
             .await?;