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#
# sendmail.rb
#
require 'tmail'
require 'net/smtp'
require 'nkf'
require 'etc'
require 'socket'
require 'getopts'
def usage( status, msg = nil )
output = (status == 0 ? $stdout : $stderr)
output.puts msg if msg
output.print(<<EOS)
Usage: cat msg | #{File.basename $0} [-j|--ja] [-s <subject>] [-f <from>] <to>
-h,--host=addr SMTP server address. (default=localhost)
-s,--subject=sbj subject of the message. (default=(none))
-f,--from=from from address.
-j,--ja handle japanese message. (default=off)
EOS
exit status
end
def main
getopts('j', 'ja', 'h:', 'host:',
's:', 'subject:', 'f:', 'from:',
'help') or usage(1)
smtphost = $OPT_host || $OPT_h || 'localhost'
subject = $OPT_subject || $OPT_s
from = $OPT_from || $OPT_f || guess_from_address()
usage(1, 'Sender address not given') unless from
to = ARGV
usage(1, 'Receipt address(es) not given') if to.empty?
ja_locale = $OPT_ja || $OPT_j
send_mail smtphost, setup_mail(from, to, subject, $stdin.read, ja_locale)
end
def setup_mail( from, to, subject, body, ja_locale )
mail = TMail::Mail.new
mail.date = Time.now
mail.from = from
mail.to = to
mail.subject = subject if subject
mail.mime_version = '1.0'
if ja_locale
mail.body = NKF.nkf('-j', body)
mail.set_content_type 'text', 'plain', 'charset' => 'iso-2022-jp'
else
mail.body = body
mail.set_content_type 'text', 'plain'
end
mail
end
def send_mail( host, mail )
msg = mail.encoded
$stderr.print msg if $DEBUG
smtp = Net::SMTP.new(host, 25)
smtp.set_debug_output $stderr if $DEBUG
smtp.start {
smtp.send_mail msg, mail.from_address, mail.destinations
}
end
def guess_from_address
user = getlogin()
unless user
$stderr.puts 'cannot get user account; abort.'
exit 1
end
if domain = (Socket.gethostname || ENV['HOSTNAME'] || ENV['HOST'])
user + '@' + domain
else
user
end
end
def getlogin
begin
require 'etc'
Etc.getlogin
rescue LoadError
ENV['LOGNAME'] || ENV['USER']
end
end
main
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