using `equal' on email addresses

using `equal' on email addresses

[NAGY Andras]

While email addresses are case insensitive, `equal' is being used at
some (several?) places in Gnus to compare them, which should be
fixed.  For instance, article-hide-boring-headers in gnus-art.el does
this.



Andras

Re: using `equal' on email addresses

[ShengHuo ZHU]

NAGY Andras <nagya@inf.elte.hu> writes:

> While email addresses are case insensitive, `equal' is being used at
> some (several?) places in Gnus to compare them, which should be
> fixed.  For instance, article-hide-boring-headers in gnus-art.el does
> this.

article-hide-boring-headers has been fixed.  But I did not go through
other Gnus code. If you find other instances, please post them.

ShengHuo

-- 
(setq gnus-posting-styles '((".*" (signature-file "~/.signature"))))

Re: using `equal' on email addresses

[Jost.Krieger]

On Tue, Jan 30, 2001 at 04:48:42PM +0100, NAGY Andras wrote:
 
> While email addresses are case insensitive, `equal' is being used at
> some (several?) places in Gnus to compare them, which should be
> fixed.  For instance, article-hide-boring-headers in gnus-art.el does
> this.

Please don't do this *exactly like this*.

The rules are:
The domain part is case insensitive.
In the local part, the address "Postmaster" must be valid
case-insensitively.
Othe local parts *can* be case-sensitive.

On the other hand, I know of no system that acts like this
intentionally, but under *nix you can easily have two users with
only case-differences to their loginid.

Jost
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Re: using `equal' on email addresses

[Paul Jarc]

Jost.Krieger@ruhr-uni-bochum.de writes:
> The rules are:
> The domain part is case insensitive.
> In the local part, the address "Postmaster" must be valid
> case-insensitively.
> Othe local parts *can* be case-sensitive.

Also, to be maximally careful, the domain is everything after the
*last* "@".


paul

Re: using `equal' on email addresses

[Florian Weimer]

prj@po.cwru.edu (Paul Jarc) writes:

> Also, to be maximally careful, the domain is everything after the
> *last* "@".

Ugh, does anybody still use RFC 822 source routing?  I don't think so,
bang paths and percent hacks might still exist, however.

Re: using `equal' on email addresses

[Randal L. Schwartz]

>>>>> "Florian" == Florian Weimer <fw@deneb.enyo.de> writes:

Florian> prj@po.cwru.edu (Paul Jarc) writes:
>> Also, to be maximally careful, the domain is everything after the
>> *last* "@".

Florian> Ugh, does anybody still use RFC 822 source routing?  I don't think so,
Florian> bang paths and percent hacks might still exist, however.

It's not just for "source routing".  It's perfectly legal for me to
set up <merlyn@news@stonehenge.com> to use for Usenet postings.  Only
the rightmost "@" is significant *outside* the mail handler for
stonehenge.com.  Any presumptions about meaning to the left of that
one are quite possibly wrong.

Hmm.  Maybe I just invented a new spamproof address scheme, until the
scrapers figure this out!

-- 
Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095
<merlyn@stonehenge.com> <URL:http://www.stonehenge.com/merlyn/>
Perl/Unix/security consulting, Technical writing, Comedy, etc. etc.
See PerlTraining.Stonehenge.com for onsite and open-enrollment Perl training!

Re: using `equal' on email addresses

[Florian Weimer]

merlyn@stonehenge.com (Randal L. Schwartz) writes:

> Florian> Ugh, does anybody still use RFC 822 source routing?  I
> Florian> don't think so, bang paths and percent hacks might still
> Florian> exist, however.
> 
> It's not just for "source routing".  It's perfectly legal for me to
> set up <merlyn@news@stonehenge.com> to use for Usenet postings.

This is not a valid address in RFC 822 syntax, and thus not permitted
by RFC 1036.  You could use "merlyn@news"@stonehenge.com instead.

> Hmm.  Maybe I just invented a new spamproof address scheme, until the
> scrapers figure this out!

Unfortunately, UUCP rmail can't deal with spaces in local-parts,
that's why I stopped using " "@some.domain.

Re: using `equal' on email addresses

[Randal L. Schwartz]

>>>>> "Florian" == Florian Weimer <fw@deneb.enyo.de> writes:

Florian> merlyn@stonehenge.com (Randal L. Schwartz) writes:
Florian> Ugh, does anybody still use RFC 822 source routing?  I
Florian> don't think so, bang paths and percent hacks might still
Florian> exist, however.
>> 
>> It's not just for "source routing".  It's perfectly legal for me to
>> set up <merlyn@news@stonehenge.com> to use for Usenet postings.

Florian> This is not a valid address in RFC 822 syntax, and thus not permitted
Florian> by RFC 1036.  You could use "merlyn@news"@stonehenge.com instead.

Oops. :)  Now I remember why I didn't do that.  Blame the "3 hours
of sleep in 48 hours" for that, please. :)

That's what happens when you spend 10 days at sea in the caribbean
with a bunch of other geeks (www.geekcruises.com)... no sleep. :)

-- 
Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095
<merlyn@stonehenge.com> <URL:http://www.stonehenge.com/merlyn/>
Perl/Unix/security consulting, Technical writing, Comedy, etc. etc.
See PerlTraining.Stonehenge.com for onsite and open-enrollment Perl training!

Re: using `equal' on email addresses

[NAGY Andras]

Jost.Krieger@ruhr-uni-bochum.de writes:

> The rules are:
> The domain part is case insensitive.
> In the local part, the address "Postmaster" must be valid
> case-insensitively.
> Othe local parts *can* be case-sensitive.

We could have a gnus-address-equal(-p?) function -- instead of the
newly introduced gnus-string-equal -- which could be configured
through variables whether to be case sensitive, insensitive, mixed
mode etc.  Maybe even an alist of regexps, matching domains,
indicating the case-sensitiveness of local parts in the given domain.
Kinda weird. :)


Andras