From mboxrd@z Thu Jan  1 00:00:00 1970
From: marcus-sup@bar-coded.net (Marcus Williams)
Date: Thu, 24 Apr 2008 09:54:53 +0100
Subject: [sup-talk] [PATCH] Add list-id as a new property of messages
In-Reply-To: <1208985725-sup-6028@elly>
References: <1208985725-sup-6028@elly>
Message-ID: <1209026545-sup-9368@tomsk>

On 23.4.2008, Israel Herraiz wrote:
> I am using list_address.email to automatically generate labels for
> messages that are coming from mailing lists (that field uses the value
> of the List-Post header of the raw message). It seems that some
> mailing lists are not including that header though. In those lists
> where I do not see List-Post, I have found that List-Id is still
> present. Therefore I propose to add that header to the message class
> for filtering purposes.

Adding list-id is a good idea I think but you cant do a personmanager
lookup with it because it isnt really an email address according to
the RFC [1].  List-Subscribe and List-Unsubscribe all set their
counterparts in message.rb to the raw header so this is what I would
expect list_id to get set to.

[snip]
> @@ -128,6 +128,12 @@ class Message
>      @source_marked_read = header["status"] == "RO"
>      @list_subscribe = header["list-subscribe"]
>      @list_unsubscribe = header["list-unsubscribe"]
> +    @list_id = 
> +      if header["list-id"]
> +        @list_id = PersonManager.person_for header["list-id"]
> +      else
> +        nil
> +      end
>    end
>    private :parse_header
[snip]

If you are labeling via list-id you just want the raw header so this
should just be 

@list_id = header["list-id"]

Then if you want to do a lookup you can do it in the
before-add-message hook.

Marcus

[1] http://www.apps.ietf.org/rfc/rfc2919.html