From 5dd1932f5f527ab68ff3a73073a38a9383773f3a Mon Sep 17 00:00:00 2001
From: Alex Hultman <alexhultman@gmail.com>
Date: Wed, 3 Apr 2019 03:29:44 +0200
Subject: [PATCH] Salvage fallback buffer from burning house

---
 src/App.h        | 3 +++
 src/HttpParser.h | 5 +++++
 2 files changed, 8 insertions(+)

diff --git a/src/App.h b/src/App.h
index 042c7dc..0081b33 100644
--- a/src/App.h
+++ b/src/App.h
@@ -192,6 +192,9 @@ public:
                 /* Move any backpressure */
                 std::string backpressure(std::move(((AsyncSocketData<SSL> *) res->getHttpResponseData())->buffer));
 
+                /* Keep any fallback buffer alive until we returned from open event, keeping req valid */
+                std::string fallback(std::move(res->getHttpResponseData()->salvageFallbackBuffer()));
+
                 /* Destroy HttpResponseData */
                 res->getHttpResponseData()->~HttpResponseData();
 
diff --git a/src/HttpParser.h b/src/HttpParser.h
index 28e48d4..0a312cc 100644
--- a/src/HttpParser.h
+++ b/src/HttpParser.h
@@ -221,6 +221,11 @@ private:
 
 public:
 
+    /* We do this to prolong the validity of parsed headers by keeping only the fallback buffer alive */
+    std::string &&salvageFallbackBuffer() {
+        return std::move(fallback);
+    }
+
     void *consumePostPadded(char *data, int length, void *user, fu2::unique_function<void *(void *, HttpRequest *)> &&requestHandler, fu2::unique_function<void *(void *, std::string_view, bool)> &&dataHandler, fu2::unique_function<void *(void *)> &&errorHandler) {
 
         HttpRequest req;