new file mode 100644
--- /dev/null
+++ b/src/http/modules/ngx_http_header_filter.c
@@ -0,0 +1,55 @@
+
+
+typedef struct {
+    int    len;
+    char  *line;
+} line;
+
+
+static line http_codes[] = {
+    { 6, "200 OK" }
+};
+
+
+
+
+int ngx_http_header_filter(ngx_http_request_t *r)
+{
+    int  status;
+    ngx_hunk_t  *h;
+
+    ngx_test_null(h, ngx_get_hunk(r->pool, 1024, 0, 64), NGX_HTTP_FILTER_ERROR);
+
+    status = r->headers_out->status - GX_HTTP_OK;
+
+    ngx_memcpy(h->pos.mem, "HTTP/1.0 ", 9);
+    h->pos.mem += 9;
+    ngx_memcpy(h->pos.mem, http_codes[status].line, http_codes[status].len);
+    h->pos.mem += http_codes[status].len;
+    *(h->pos.mem++) = CR; *(h->pos.mem++) = LF;
+
+    memcpy(h->pos.mem, "Date: ", 6);
+    h->pos.mem += 6;
+    h->pos.mem += ngx_http_get_time(h->pos.mem, time());
+    *(h->pos.mem++) = CR; *(h->pos.mem++) = LF;
+
+    /* 2^64 is 20 characters  */
+    if (r->headers_out->content_length)
+        h->pos.mem += ngx_snprintf(h->pos.mem, 49, "Content-Length: %d" CRLF,
+                                   r->headers_out->content_length);
+
+    /* check */
+
+    memcpy(h->pos.mem, "Server: ", 8);
+    h->pos.mem += 8;
+    if (r->headers_out->server) {
+        h->pos.mem = ngx_cpystrn(h->pos.mem, r->headers_out->server,
+                                 h->last.mem - h->pos.mem);
+        check space
+    } else {
+        ngx_memcpy(h->pos.mem, NGINX_VER, sizeof(NGINX_VER));
+        h->pos.mem += sizeof(NGINX_VER);
+    }
+    *(h->pos.mem++) = CR; *(h->pos.mem++) = LF;
+    
+}