This should be happier now.
-r
On (01/10/26 15:10), Ronald Klop wrote:
Hi,
I have a script which regularly fetch some files from pkg.freebsd.org for
keeping statistics. (https://www.klop.ws/pkgstats/pkg-age.html)
The command it executes is: "fetch -vv -o
/home/ronald/verify_pkgs.sh/downloads/FreeBSD:13:armv7_latest_data.pkg
--if-modified-since=/home/ronald/verify_pkgs.sh/downloads/FreeBSD:13:armv7_latest_data.pkg
https://pkg.freebsd.org/FreeBSD:13:armv7/latest/data.pkg";
Mind that the request header If-Modified-Since has the exact same time as the
response header Last-Modified.
If-Modified-Since: Sun, 05 Oct 2025 04:47:06 GMT
Last-Modified: Sun, 05 Oct 2025 04:47:06 GMT
Still the response says HTTP/1.1 200 OK instead of 304 Not Modified.
I've had this in my projects if the File.lastModified() returns a date with
milliseconds, while the http-request time always uses 0 for milliseconds. In
that case the file is always newer.
NB: not all fetch requests have this behaviour. Some give a 304 response.
Anyway, maybe the cause is something else. Would be nice to fix this
optimization.
Here the verbose output of the fetch command:
scheme: "https"
user: ""
password: ""
host: "pkg.freebsd.org"
port: "0"
document: "/FreeBSD:13:armv7/latest/data.pkg"
---> pkg.freebsd.org:443
resolving server address: pkg.freebsd.org:443
SSL options: 82004850
Peer verification enabled
Using OpenSSL default CA cert file and path
Verify hostname
TLSv1.3 connection established using TLS_AES_128_GCM_SHA256
Certificate subject: /CN=pkg.freebsd.org
Certificate issuer: /C=US/O=Certainly/CN=Certainly Intermediate R1
requesting https://pkg.freebsd.org/FreeBSD:13:armv7/latest/data.pkg
GET /FreeBSD:13:armv7/latest/data.pkg HTTP/1.1
If-Modified-Since: Sun, 05 Oct 2025 04:47:06 GMT
If-Modified-Since: Sun, 05 Oct 2025 04:47:06 GMT
Host: pkg.freebsd.org
Accept: */*
User-Agent: fetch libfetch/2.0
Connection: close
<<< HTTP/1.1 200 OK
<<< Connection: close
<<< Content-Length: 9137918
<<< Server: nginx
content length: [9137918]
<<< Content-Type: application/octet-stream
<<< Last-Modified: Sun, 05 Oct 2025 04:47:06 GMT
<<< ETag: "68e1f84a-8b6efe"
last modified: [2025-10-05 04:47:06]
<<< X-Content-Type-Options: nosniff
<<< X-XSS-Protection: 1; mode=block
<<< X-Frame-Options: SAMEORIGIN
<<< Accept-Ranges: bytes
<<< Via: 1.1 varnish, 1.1 varnish
<<< Date: Sat, 10 Jan 2026 11:04:02 GMT
<<< X-Served-By: cache-chi-kigq8000150-CHI, cache-ams2100142-AMS
<<< X-Cache: MISS, MISS
<<< X-Cache-Hits: 0, 0
<<< X-Timer: S1768043043.639628,VS0,VE106
<<< Cache-Control: no-cache,no-store,max-age=0
<<<
offset 0, length -1, size -1, clength 9137918
local size / mtime: 9137918 / 1759639626
remote size / mtime: 9137918 / 1759639626
/home/ronald/verify_pkgs.sh/downloads/FreeBSD:13:armv7_latest_d 8923 kB
20 MBps 01s
Regards,
Ronald.
--
Ryan Steinmetz
PGP: 4143 0BDC 21B0 B3D9 6D47 F0DA 504D C825 7FAD 8C58
