[Bug 7215] Towards supporting IDNA (Internationalizing Domain Names in Applications)

[bu...@bugzilla.spamassassin.org]

https://bz.apache.org/SpamAssassin/show_bug.cgi?id=7215

Mark Martinec <Ma...@ijs.si> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Attachment #5313|0                           |1
        is obsolete|                            |

--- Comment #3 from Mark Martinec <Ma...@ijs.si> ---
Created attachment 5322
  --> https://bz.apache.org/SpamAssassin/attachment.cgi?id=5322&action=edit
Introduce Util::idn_to_ascii and make use of it

Here is a focused variant of the previously attached patch,
which provides the Util::idn_to_ascii (which calls Net::LibIDN
if it is available and is needed), and makes use of it where
necessary (i.e. wherever DNS query is being assembled).

The following feature as mentioned in the opening posting
is _not_ included with this patch - it should be implemented
elsewhere:
| Instead of the more complex task of fixing
| the text parser, as a stop-gap solution I added some sanitation
| code for extracted URIs: trimming prefix and suffix characters
| that cannot appear in a valid Unicode URI. This sanitation code
| would eventually be removed when a parser is improved.

Similarly the user-defined character classes InIDNAWhitespace,
InIDNAFullStop, and InIDNA2008 are _not_ included in this patch
so that it can remain clean and focused on a single task of
introducing idn_to_ascii() and is_valid_utf_8().

trunk:
  Sending lib/Mail/SpamAssassin/AsyncLoop.pm
  Sending lib/Mail/SpamAssassin/Dns.pm
  Sending lib/Mail/SpamAssassin/DnsResolver.pm
  Sending lib/Mail/SpamAssassin/Plugin/AskDNS.pm
  Sending lib/Mail/SpamAssassin/Plugin/HeaderEval.pm
  Sending lib/Mail/SpamAssassin/Plugin/URIDNSBL.pm
  Sending lib/Mail/SpamAssassin/Util.pm
Committed revision 1694252.


Please yell if this is for some reason unacceptable :)

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