[PATCH 12 of 15] Upstream: process Connection header and detect close token

[Maxim Dounin]

# HG changeset patch
# User Maxim Dounin <mdounin at mdounin.ru>
# Date 1315040808 -14400
# Node ID 0e57952574064b354ee3084b6c8b3cac80941c33
# Parent  326308f7e409d9d5e92265ee98be2b3bbd4ba39e
Upstream: process Connection header and detect close token.

diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -91,6 +91,8 @@ static ngx_int_t ngx_http_upstream_proce
     ngx_table_elt_t *h, ngx_uint_t offset);
 static ngx_int_t ngx_http_upstream_process_charset(ngx_http_request_t *r,
     ngx_table_elt_t *h, ngx_uint_t offset);
+static ngx_int_t ngx_http_upstream_process_connection(ngx_http_request_t *r,
+    ngx_table_elt_t *h, ngx_uint_t offset);
 static ngx_int_t
     ngx_http_upstream_process_transfer_encoding(ngx_http_request_t *r,
     ngx_table_elt_t *h, ngx_uint_t offset);
@@ -218,7 +220,7 @@ ngx_http_upstream_header_t  ngx_http_ups
                  offsetof(ngx_http_headers_out_t, accept_ranges), 1 },
 
     { ngx_string("Connection"),
-                 ngx_http_upstream_ignore_header_line, 0,
+                 ngx_http_upstream_process_connection, 0,
                  ngx_http_upstream_ignore_header_line, 0, 0 },
 
     { ngx_string("Keep-Alive"),
@@ -3372,6 +3374,23 @@ ngx_http_upstream_process_charset(ngx_ht
 
 
 static ngx_int_t
+ngx_http_upstream_process_connection(ngx_http_request_t *r, ngx_table_elt_t *h,
+    ngx_uint_t offset)
+{
+    r->upstream->headers_in.connection = h;
+
+    if (ngx_strlcasestrn(h->value.data, h->value.data + h->value.len,
+                         (u_char *) "close", 5 - 1)
+        != NULL)
+    {
+        r->upstream->headers_in.connection_close = 1;
+    }
+
+    return NGX_OK;
+}
+
+
+static ngx_int_t
 ngx_http_upstream_process_transfer_encoding(ngx_http_request_t *r,
     ngx_table_elt_t *h, ngx_uint_t offset)
 {
diff --git a/src/http/ngx_http_upstream.h b/src/http/ngx_http_upstream.h
--- a/src/http/ngx_http_upstream.h
+++ b/src/http/ngx_http_upstream.h
@@ -227,6 +227,7 @@ typedef struct {
 
     ngx_array_t                      cache_control;
 
+    unsigned                         connection_close:1;
     unsigned                         chunked:1;
 } ngx_http_upstream_headers_in_t;