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#!/usr/bin/env ruby
#--
# Copyright (C) 2002 Matt Armstrong. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. The name of the author may not be used to endorse or promote
# products derived from this software without specific prior
# written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
# GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
require 'rmail/parser'
require 'rmail/address'
require 'rmail/serialize'
def syslog(str)
system('logger', '-p', 'mail.info', '-t', 'rsendmail', str.to_s)
end
extract_recipients = false
sender = nil
full_name = nil
single_dot_ends = true
end_of_options = false
recipients = []
while not ARGV.empty?
arg = ARGV.shift
if ! recipients.empty? || arg =~ /\A[^-]/ || end_of_options
recipients.push(arg)
else
case arg
when '-t'
extract_recipients = true
when '-f'
sender = ARGV.shift
when '-F'
full_name = ARGV.shift
when '-oi'
single_dot_ends = false
when '--'
end_of_options = true
else
$stderr.puts("rsendmail: invalid option -- #{arg}")
exit 1
end
end
end
# FIXME: parsing messages should be external to the RMail::Message
# class. For example, we should differentiate here between -oi and
# not -oi.
message = RMail::Parser.new.parse($stdin)
def get_recipients(message, field_name, list)
unless message.header[field_name].nil?
RMail::Address.parse(message.header[field_name]).each do |address|
# FIXME: need an "smtpaddress" method
list.push(address.address)
end
end
end
if extract_recipients
get_recipients(message, 'to', recipients)
get_recipients(message, 'cc', recipients)
get_recipients(message, 'bcc', recipients)
end
# FIXME: put this into some kind of library
# FIXME: simplify verp recipients?
# FIXME: share with .rdeliver
def with_db(name)
require 'gdbm'
begin
db = nil
begin
db = GDBM::open(File.join("/home/matt/.rfilter/var", name), 0600)
rescue Errno::EWOULDBLOCK
# FIXME: only wait so long, then defer
sleep(2)
retry
end
yield db
ensure
db.close unless db.nil?
end
end
# FIXME: share with .rdeliver
def record_string_in_db(db, address)
record = db[address]
count = record.split(/:/)[1] unless record.nil?
count ||= '0'
db[address] = Time.now.strftime("%Y%m%d") + ':' + count.succ
end
with_db('sent-recipient') do |db|
dup = {}
recipients.each do |r|
address = r.downcase
record_string_in_db(db, address) unless dup.key?(address)
dup[address] ||= 1
end
end
with_db "sent-subjects" do |db|
if subject = message.header['subject']
subject = subject.strip.downcase
record_string_in_db(db, subject)
end
end
with_db "sent-msgid" do |db|
if msgid = message.header['message-id']
msgid = msgid.strip.downcase
record_string_in_db(db, msgid)
end
end
# FIXME: delete any bcc headers
# FIXME: should be able to generate a default From: header
#raise 'no from header' if message.header['from'].nil?
# FIXME: more error checking here
IO.popen('-', 'w') do |child|
if child.nil?
# FIXME: instead of 'address' need a way to output the address for
# SMTP purposes.
command = ['/usr/sbin/sendmail', '-oi']
command.concat(['-F', full_name]) if full_name
command.concat(['-f', sender]) if sender
command.concat(recipients)
#syslog("args ouggoing: " + command.inspect)
exec(*command)
else
RMail::Serialize.new(child).serialize(message)
end
end
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