[ic] [interchange-core] Encoding of mail headers

[Mike Heins]

Quoting David Christensen (david at endpoint.com):
> 
> On Mar 4, 2009, at 10:27 AM, Mike Heins wrote:
> 
> > Quoting David Christensen (david at endpoint.com):
> >>
> >> On Mar 4, 2009, at 9:27 AM, Stefan Hornburg wrote:
> >>
> >>> David Christensen wrote:
> >>>> On Mar 4, 2009, at 2:52 AM, Stefan Hornburg (Racke) wrote:
> >>>>
> >>>>> According to RFC 2047 mail headers with characters other than US-
> >>>>> ASCII needs
> >>>>> to be escaped. Interchange fails to do so, resulting in emails
> >>>>> delivered
> >>>>> which will be tagged by Spamassassin with SUBJECT_NEEDS_ENCODING  
> >>>>> and
> >>>>> SUBJ_ILLEGAL_CHARS.
> >>>>>
> >>>>> I wrote a simple filter which addresses this problem:
> >>>>>
> >>>>> CodeDef mime_encode_words Filter
> >>>>> CodeDef mime_encode_words Description Find MIME type of filename
> >>>>> CodeDef mime_encode_words Routine <<EOR
> >>>>>
> >>>>> use MIME::EncWords;
> >>>>>
> >>>>> sub {
> >>>>> 	return MIME::EncWords::encode_mimewords(shift);
> >>>>> }
> >>>>> EOR
> >>>>>
> >>>>> Of course the whole IC email infrastructure needs to be adjusted  
> >>>>> to
> >>>>> use
> >>>>> this.
> >>>>
> >>>> The Encode module also offers this capability, and has the  
> >>>> benefit of
> >>>> being core.  While we're doing this, we should revisit the body
> >>>> encoding as well.  I definitely agree that this should be done.
> >>>>
> >>>
> >>> How would this work with Encode?
> >>>
> >>> Regards
> >>> 	Racke
> >>
> >>
> >> use Encode qw(encode);
> >>
> >> sub mime_encode_header {
> >>     return encode('MIME-Header',shift);
> >> }
> >>
> >
> > Why would we prefer the Encode module, which has known problems
> > with Safe?
> 
> This will need to be resolved, but any module which does not import  
> into the main namespace will have the same issues.

Not at all true. If you don't rely on runtime requires, there is no problem.

> ("main" not  
> necessarily being "main::" where Safe is concerned.)

-- 
Mike Heins
Perusion -- Expert Interchange Consulting    http://www.perusion.com/
phone +1.765.328.4479  <mike at perusion.com>

"Laughter is inner jogging." -- Norman Cousins