[imapfilter-devel] interest in filter mailing lists on unknown names

[Gautam Gopalakrishnan]

On Thu, May 06, 2004 at 05:41:51PM -0400, Tobias Eigen wrote:
> Hi, 
> 
> I've just started playing with imapfilter and am very pleased with its
> functionality, esp for filtering lists into subfolders automatically. 
> 
> I'm interested in the functionality described in this thread titled "filter
> mailing lists on unknown names" -
> http://lists.hellug.gr/pipermail/imapfilter-devel/2004/000512.html

Hey,

I've always wanted to do this with procmail on my POP mail, didn't
know how to. Anyway, here's some code I wrote. It almost works.
Anybody with more skill in Lua could maybe help out here. The
filter runs for only half of my messages. Looks like something to do
with table.foreachi, but I can't figure it out.

As usual, no guarantees. To be safe, you could change move() to copy().
Also, if you want to filter based on the subject having [listname],
it's trivial to change the regex in function and the fetchheader line

Any feedback is welcome.

Cheers
Gautam



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options.timeout = 120
options.subscribe = true
options.info = true
options.create = true
options.expunge = true

acc1 = {
	server = '*',
	username = '*',
	password = '*',
	ssl = 'ssl3',
}

function filter_listid(k, v) 
	hdr = fetchheaders(acc1, 'INBOX', {'List-Id'}, {v})
	if hdr[v] == nil then return nil end
	hdr[v] = string.gsub(hdr[v], "[\n\r]", "")
	if hdr[v] == "" then return nil end
	z, z, listname = string.find(hdr[v], "<([a-zA-Z0-9_.-]-)>", 1)
	if listname == nil then return nil end
	move(acc1, 'INBOX', acc1, listname, {v})
	return nil
end

f_all  = {}

results = match(acc1, 'INBOX', f_all)
if results ~= nil
then
	table.foreachi(results, filter_listid)
end