From b2cd52067348aad0f751e654ed7f42f0a29b418d Mon Sep 17 00:00:00 2001
From: Valentin Bartenev <vbart@nginx.com>
Date: Mon, 7 Apr 2014 19:27:56 +0400
Subject: [PATCH] SPDY: better detect premature closing of stream.

Following a24f88eff684, now the case when the FIN flag is set in SYN_STREAM
is also covered.
---
 src/http/ngx_http_spdy.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/http/ngx_http_spdy.c b/src/http/ngx_http_spdy.c
index 92f2a00c6..d821475d2 100644
--- a/src/http/ngx_http_spdy.c
+++ b/src/http/ngx_http_spdy.c
@@ -2962,6 +2962,16 @@ ngx_http_spdy_run_request(ngx_http_request_t *r)
         return;
     }
 
+    if (r->headers_in.content_length_n > 0 && r->spdy_stream->in_closed) {
+        ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
+                      "client prematurely closed stream");
+
+        r->spdy_stream->skip_data = NGX_SPDY_DATA_ERROR;
+
+        ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
+        return;
+    }
+
     ngx_http_process_request(r);
 }