| # |
| # Receive and deliver mail |
| # |
| |
| require 'digest' |
| require 'fileutils' |
| |
| MAIL_ROOT = '/srv/mail' |
| |
| # get the message ID |
| def self.getmid(hdrs) |
| mid = hdrs[/^Message-ID:.*/i] |
| if mid =~ /^Message-ID:\s*$/i # no mid on the first line |
| # capture the next line and join them together |
| # line may also start with tab; we don't use \s as this also matches EOL |
| # Rescue is in case we don't match properly - we want to return nil in that case |
| mid = hdrs[/^Message-ID:.*\r?\n[ \t].*/i].sub(/\r?\n/,'') rescue nil |
| end |
| mid |
| end |
| |
| STDIN.binmode |
| mail = STDIN.read |
| |
| # only search headers for MID and List-ID etc |
| hdrs = mail[/\A(.*?)\r?\n\r?\n/m, 1] || '' |
| |
| # extract info |
| dest = hdrs[/^List-Id: <(.*)>/, 1] || hdrs[/^Delivered-To.* (\S+)\s*$/, 1] || 'unknown' |
| month = Time.now.strftime('%Y%m') |
| hash = Digest::SHA1.hexdigest(getmid(hdrs) || mail)[0..9] |
| |
| # build file name |
| file = "#{MAIL_ROOT}/#{dest[/^[-\w]+/]}/#{month}/#{hash}" |
| |
| File.umask 0002 |
| FileUtils.mkdir_p File.dirname(file) |
| File.write file, mail, encoding: Encoding::BINARY |
| File.chmod 0644, file |
