Mailing List Archive

On Wed, 9 Sep 2020 at 17:43, <gbechis@apache.org> wrote:

> Author: gbechis
> Date: Wed Sep 9 14:43:07 2020
> New Revision: 1881590
>
> URL: http://svn.apache.org/viewvc?rev=1881590&view=rev
> Log:
> handle headers when replying a 304 following rfc7234
> as discussed in bz 61820
>
> Modified:
> httpd/httpd/trunk/modules/http/http_filters.c
>
> Modified: httpd/httpd/trunk/modules/http/http_filters.c
> URL:
> http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/http/http_filters.c?rev=1881590&r1=1881589&r2=1881590&view=diff
>
> ==============================================================================
> --- httpd/httpd/trunk/modules/http/http_filters.c (original)
> +++ httpd/httpd/trunk/modules/http/http_filters.c Wed Sep 9 14:43:07 2020
> @@ -1427,25 +1427,21 @@ AP_CORE_DECLARE_NONSTD(apr_status_t) ap_
> h.bb = b2;
>
> if (r->status == HTTP_NOT_MODIFIED) {
> - apr_table_do((int (*)(void *, const char *, const char *))
> form_header_field,
> - (void *) &h, r->headers_out,
> - "Connection",
> - "Keep-Alive",
> - "ETag",
> - "Content-Location",
> - "Expires",
> - "Cache-Control",
> - "Vary",
> - "Warning",
> - "WWW-Authenticate",
> - "Proxy-Authenticate",
> - "Set-Cookie",
> - "Set-Cookie2",
> - NULL);
> - }
> - else {
> - send_all_header_fields(&h, r);
> + /*
> + * List of headers that must not be updated on a 304 (or 206
> partial content)
> + * https://tools.ietf.org/id/draft-ietf-httpbis-cache-08.txt
> + */
> + apr_table_unset(r->headers_out, "Content_Encoding");
> + apr_table_unset(r->headers_out, "Content_Length");
> + apr_table_unset(r->headers_out, "Content_MD5");
> + apr_table_unset(r->headers_out, "Content_Range");
> + apr_table_unset(r->headers_out, "ETag");
> + apr_table_unset(r->headers_out, "TE");
> + apr_table_unset(r->headers_out, "Trailer");
> + apr_table_unset(r->headers_out, "Transfer_Encoding");
>
Maybe I am missing some context, but header names use dash, not
underscore. I.e Content-Encoding, not Content_Encoding.


--
Ivan Zhakov