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diff src/http/modules/ngx_http_proxy_module.c @ 5072:7fa7e60a7f66

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Proxy: support for connection upgrade (101 Switching Protocols). This allows to proxy WebSockets by using configuration like this: location /chat/ { proxy_pass http://backend; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "upgrade"; } Connection upgrade is allowed as long as it was requested by a client via the Upgrade request header.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 18 Feb 2013 13:50:52 +0000
parents bbdb172f0927
children f7fe817c92a2
line wrap: on
line diff
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -1474,6 +1474,14 @@ ngx_http_proxy_process_header(ngx_http_r
                 u->keepalive = !u->headers_in.connection_close;
             }
 
+            if (u->headers_in.status_n == NGX_HTTP_SWITCHING_PROTOCOLS) {
+                u->keepalive = 0;
+
+                if (r->headers_in.upgrade) {
+                    u->upgrade = 1;
+                }
+            }
+
             return NGX_OK;
         }