# HG changeset patch
# User Maxim Dounin <mdounin@mdounin.ru>
# Date 1341695781 0
# Node ID 5ea8c710c532f771baa72ef4cf868ca357feaba6
# Parent  432428be692de127f90ab6854d82bb816a8bb7e9
Fixed If-Range with unknown last modified time.

If modification time isn't known, skip range processing and return full
entity body instead of just ignoring If-Range.  Ignoring If-Range isn't
safe as client will assume entity wasn't changed since time specified.

diff --git a/src/http/modules/ngx_http_range_filter_module.c b/src/http/modules/ngx_http_range_filter_module.c
--- a/src/http/modules/ngx_http_range_filter_module.c
+++ b/src/http/modules/ngx_http_range_filter_module.c
@@ -174,7 +174,11 @@ ngx_http_range_header_filter(ngx_http_re
         goto next_filter;
     }
 
-    if (r->headers_in.if_range && r->headers_out.last_modified_time != -1) {
+    if (r->headers_in.if_range) {
+
+        if (r->headers_out.last_modified_time == (time_t) -1) {
+            goto next_filter;
+        }
 
         if_range = ngx_http_parse_time(r->headers_in.if_range->value.data,
                                        r->headers_in.if_range->value.len);