Add split-mailman-mails-and-discard-and-save

git-svn-id: svn+ssh://asteria.noreply.org/svn/weaselutils/trunk@88 bc3d92e2-beff-0310-a7cd-cc87d7ac0ede

1 files changed, 91 insertions, 0 deletions

diff --git a/split-mailman-mails-and-discard-and-save b/split-mailman-mails-and-discard-and-save
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+++ b/split-mailman-mails-and-discard-and-save
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+#!/usr/bin/ruby
+
+require 'rmail'
+
+
+MAILIN="mail-in"
+SPAM="spam-learn"
+OUTBOX="outbox"
+
+DOMAIN='lists.oftc.net'
+FROM="listmoderators@lists.oftc.net"
+HOSTNAME=`hostname`.chop
+
+class Counter
+	@@counter = 0
+
+	def Counter.value
+		@@counter += 1
+	end
+end
+
+def uniqueName
+	"%d.%d_%d.%s"%[
+		Time.now.to_i,
+		$$,
+		Counter.value,
+		HOSTNAME]
+end
+
+def check_maildir(d)
+	throw "#{d} is not a maildir" unless FileTest.directory?(d)
+	throw "#{d} is not a maildir" unless FileTest.directory?(d+"/new")
+	throw "#{d} is not a maildir" unless FileTest.directory?(d+"/cur")
+	throw "#{d} is not a maildir" unless FileTest.directory?(d+"/tmp")
+	true
+end
+
+def store_in_maildir(md, msg)
+	fn = uniqueName
+	File.open(md+"/tmp/"+fn, "w", 0600) do |f|
+		f.puts msg
+	end
+	File.link(md+"/tmp/"+fn, md+"/new/"+fn)
+	File.unlink(md+"/tmp/"+fn)
+	md+"/new/"+fn
+end
+
+def process_mail(filename)
+	message = File.open(filename) { |f| RMail::Parser.read(f) }
+	# some sanity checks
+	throw "Mailman moderation mails are expected to have 3 mime parts" unless message.body.length == 3
+	throw "Mime Part 0 does have an unexpected content type: #{message.body[0].header['Content-Type']}" unless message.body[0].header['Content-Type'] == 'text/plain; charset="us-ascii"'
+	throw "Mime Part 1 does have an unexpected content type: #{message.body[1].header['Content-Type']}" unless message.body[1].header['Content-Type'] == 'message/rfc822'
+	throw "Mime Part 2 does have an unexpected content type: #{message.body[2].header['Content-Type']}" unless message.body[2].header['Content-Type'] == 'message/rfc822'
+	explanation_body = message.body[0].body
+	held_part = RMail::Parser.read( message.body[1].body )
+	discard_part = RMail::Parser.read( message.body[2].body )
+
+	# more sanity checks
+	throw "Did not find 'As list administrator, your..' boilerplate in mail" unless explanation_body =~ /^As list administrator, your authorization is requested for the/
+	throw "Did not find listname in mail" unless explanation_body =~ /^ *List: *.*@#{DOMAIN}/
+	throw "discard_part does have an unexpected content type: #{discard_part.header['Content-Type']}" unless discard_part.header['Content-Type'] == 'text/plain; charset="us-ascii"'
+
+	request_address = discard_part.header['From']
+	throw "discard_part does not have a from address" unless request_address
+
+	matchdata = /confirm ([0-9a-f]*)/.match discard_part.header['Subject']
+	throw "Could not find cookie in discard_part" unless matchdata and matchdata[1]
+	cookie = matchdata[1]
+
+	store_in_maildir(SPAM, held_part)
+	mail_request = RMail::Message.new()
+	mail_request.header['From'] = FROM
+	mail_request.header['To'] = request_address
+	mail_request.header['Subject'] = "Re: confirm #{cookie}"
+	mail_request.body = ''
+	store_in_maildir(OUTBOX, mail_request)
+end
+
+check_maildir MAILIN
+check_maildir SPAM
+check_maildir OUTBOX
+
+Dir[MAILIN+"/new/*"].each do |filename|
+	begin
+		process_mail filename
+		File.unlink filename
+	rescue Exception => e
+		STDERR.puts "Error when processing #{filename}: #{e}"
+	end
+end