Update several status codes to RFC 9110 #197

waterkip · 2024-04-09T21:08:28Z

306 is officially reserved but unused
413 is called 'Content Too Large' in RFC 9110
418 is officially reserved, so let's make it official here too
422 is imported from WebDAV and named 'Unprocessable Content'.

Reference: https://www.rfc-editor.org/rfc/rfc9110.html#name-changes-from-rfc-7231

oalders · 2024-04-09T21:54:07Z

I'm going to close and re-open to see if that starts CI.

vanHoesel

We need a proper way to fix HTTP_UNUSED

vanHoesel · 2024-04-09T21:55:41Z

lib/HTTP/Status.pm

 414 => 'URI Too Long',
 415 => 'Unsupported Media Type',
 416 => 'Range Not Satisfiable', # RFC 7233: Range Requests
 417 => 'Expectation Failed',
-# 418 .. 420
+ 418 => "I'm a teapot", # RFC 9110: Its official now -sorta


the registry indicates that it is (Unused)

Yes. However becauee of the HTTP_UNUSED being there twixe I opted for keeping the Teapot reference. Also because the RFC refers to this fact as the reason why it assigned.

As much as it hurts my personal feeling that I'm a Teapot will be gone, I prefer correctness above sentiment, and let's stick with (Unused) :-(

I get what you are saying, but I do think this easter egg or April's day can stay. But you're in charge, so I'll remove it.

I've done some middle grounding based on another comment of yours in this PR.

In the compat section, when you call I_AM_A_TEAPOT, we set the status code of 418 to I'm a teapot and from that moment onwards you have the status message as I'm a teapot. It keeps the easter egg alive and kicking for those who get a little giggle out of it (myself included) and when you don't use it it stays (Unused). And we are skipping HTTP_UNUSED from being exported/implemented.

Not sure if we had Easter on 1-April in that year to0 ... butt yes, this is what I prefer, for those that ever used it to keep it alive.

lib/HTTP/Status.pm

vanHoesel · 2024-04-10T08:46:46Z

What about the following:

set the %StatusCodes like:

    306 => '(Unused)',                        # RFC 9110: Previously used and reserved
    418 => '(Unused)',                        # RFC 9110: Its official now -sorta
#   419 .. 420

my %compat = (
    I_AM_A_TEAPOT                 => sub {
                                       carp "HTTP Status Code 418 set to \"I'm a Teapot\"\n"
                                       $StatusCode{418} = "I'm a teapot";
                                       418
                                     },
    NO_CODE                       => \&HTTP_TOO_EARLY,
    PAYLOAD_TOO_LARGE             => \&HTTP_CONTENT_TOO_LARGE,
    REQUEST_ENTITY_TOO_LARGE      => \&HTTP_CONTENT_TOO_LARGE,
    REQUEST_RANGE_NOT_SATISFIABLE => \&HTTP_RANGE_NOT_SATISFIABLE,
    REQUEST_URI_TOO_LARGE         => \&HTTP_URI_TOO_LONG,
    UNPROCESSABLE_ENTITY          => \&HTTP_UNPROCESSABLE_CONTENT,
    UNORDERED_COLLECTION          => \&HTTP_TOO_EARLY,
    UNUSED                        => sub {
                                       carp "HTTP Status Code '(Unused)'\n";
                                       000
                                     },
);

That way, for those who fancy the 🫖 , it is still there when once used as HTTP_I_AM_A_TEAPOT. Maybe a nice way to only warn the user once for the teapot, and only set the status code message once ?

Please be advised, that use Carp might be needed, and that whilst looping during '# create mnemonic subroutines
' it will redefine HTTP_UNUSED.

Just some ideas...

haarg · 2024-04-10T08:49:52Z

I think it would be better to remove the constants for the "unused" codes. That eliminates the ambiguity between 306 and 418.

vanHoesel · 2024-04-10T09:16:24Z

I think it would be better to remove the constants for the "unused" codes. That eliminates the ambiguity between 306 and 418.

I am totally fine with removing (or preferably not adding) the HTTP_UNUSED and RC_UNUSED.

But unlike non registered codes that will return undef when calling status_message for not registered codes, II think we should return (Unused) for both 306 and 418, for that is what is set to at the IANA registry.

vanHoesel

LGTM

haarg · 2024-04-10T13:10:56Z

lib/HTTP/Status.pm

@@ -121,7 +118,13 @@ die if $@;
 push(@EXPORT, "RC_MOVED_TEMPORARILY");

 my %compat = (
- REQUEST_ENTITY_TOO_LARGE => \&HTTP_PAYLOAD_TOO_LARGE,
+ I_AM_A_TEAPOT => sub {
+ $StatusCode{418} = "I'm a teapot";


This is a really terrible idea. Changing global behavior based on a constant access should never happen. This should just return 418 and do nothing else.

The prototype also needs to be ().

Good catch, about the prototype

it is a terrible idea, but so is it to just change the registry.

I would like to avoid the surprise:
say status_message HTTP_I_AM_A_TEAPOT; # (Unused)

If that is a large concern, just leave the message as "I'm a teapot".

The likelihood of anyone actually relying on 418 is very small.

We use it in Production, and I often use it when developers can't get an agreement on the exact 4xx status

And you are relying on what the message is?

There's just no way you can have this both ways. The message should either be (Unused) or I'm a teapot. I don't think it's particularly important which one. You can't do both. Trying to do both will make the result unpredictable and anything that relies on it will always be broken in some cases.

I favor the teapot, but if you want it to be unused, I'll go with that.

If we need to decide on one and the status code is unused anyway, I'm in favour of 🫖.

* 306 is officially reserved but unused * 413 is called 'Content Too Large' in RFC 9110 * 418 is officially reserved, so let's make it official here too * 422 is imported from WebDAV and named 'Unprocessable Content'. Reference: https://www.rfc-editor.org/rfc/rfc9110.html#name-changes-from-rfc-7231 Signed-off-by: Wesley Schwengle <waterkip@cpan.org>

waterkip · 2024-05-23T16:32:02Z

Any update on this PR?

oalders · 2024-05-26T18:07:59Z

Close and re-open to kick off CI.

oalders · 2024-05-27T18:53:06Z

Thanks, @waterkip!

oalders closed this Apr 9, 2024

oalders reopened this Apr 9, 2024

vanHoesel requested changes Apr 9, 2024

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waterkip force-pushed the rfc9110 branch 2 times, most recently from f8f000d to 1c94d56 Compare April 10, 2024 12:53

waterkip requested a review from vanHoesel April 10, 2024 12:56

vanHoesel approved these changes Apr 10, 2024

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haarg reviewed Apr 10, 2024

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waterkip force-pushed the rfc9110 branch from 1c94d56 to cff134c Compare April 18, 2024 11:51

oalders approved these changes May 26, 2024

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oalders closed this May 26, 2024

oalders reopened this May 26, 2024

haarg approved these changes May 27, 2024

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oalders merged commit 906d85f into libwww-perl:master May 27, 2024
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waterkip deleted the rfc9110 branch May 27, 2024 20:17

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Update several status codes to RFC 9110 #197

Update several status codes to RFC 9110 #197

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Update several status codes to RFC 9110 #197

Update several status codes to RFC 9110 #197

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