winhttp: Close the network connection if necessary.

[Hans Leidekker]

diff --git a/dlls/winhttp/request.c b/dlls/winhttp/request.c
index 4468963..1f91c99 100644
--- a/dlls/winhttp/request.c
+++ b/dlls/winhttp/request.c
@@ -1225,7 +1225,21 @@ static BOOL receive_data_chunked( request_t *request, void *buffer, DWORD size,
 
 static void finished_reading( request_t *request )
 {
-    /* FIXME: close connection here if necessary */
+    static const WCHAR closeW[] = {'c','l','o','s','e',0};
+
+    BOOL close = FALSE;
+    WCHAR connection[20];
+    DWORD size = sizeof(connection);
+
+    if (request->hdr.disable_flags & WINHTTP_DISABLE_KEEP_ALIVE) close = TRUE;
+    else if (query_headers( request, WINHTTP_QUERY_CONNECTION, NULL, connection, &size, NULL ) ||
+             query_headers( request, WINHTTP_QUERY_PROXY_CONNECTION, NULL, connection, &size, NULL ))
+    {
+        if (!strcmpiW( connection, closeW )) close = TRUE;
+    }
+    else if (!strcmpW( request->version, http1_0 )) close = TRUE;
+
+    if (close) close_connection( request );
     request->content_length = ~0UL;
     request->content_read = 0;
 }
diff --git a/dlls/winhttp/winhttp_private.h b/dlls/winhttp/winhttp_private.h
index 0270ea8..8f5e17c 100644
--- a/dlls/winhttp/winhttp_private.h
+++ b/dlls/winhttp/winhttp_private.h
@@ -39,6 +39,7 @@
 static const WCHAR getW[]    = {'G','E','T',0};
 static const WCHAR postW[]   = {'P','O','S','T',0};
 static const WCHAR slashW[]  = {'/',0};
+static const WCHAR http1_0[] = {'H','T','T','P','/','1','.','0',0};
 static const WCHAR http1_1[] = {'H','T','T','P','/','1','.','1',0};
 
 typedef struct _object_header_t object_header_t;