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|
=begin
= net/smtp.rb
written by Minero Aoki <aamine@dp.u-netsurf.ne.jp>
This library is distributed under the terms of the Ruby license.
You can freely distribute/modify this library.
=end
require 'net/protocol'
module Net
=begin
== Net::SMTP
=== Super Class
Net::Protocol
=== Class Methods
: new( address = 'localhost', port = 25 )
This method create new SMTP object.
=== Methods
: start( helo_domain = ENV['HOSTNAME'] )
This method opens TCP connection and start SMTP.
If protocol had been started, do nothing and return false.
: sendmail( mailsrc, from_domain, to_addrs )
This method sends 'mailsrc' as mail. SMTPSession read strings
from 'mailsrc' by calling 'each' iterator, and convert them
into "\r\n" terminated string when write.
Exceptions which SMTP raises are:
* Net::ProtoSyntaxError: syntax error (errno.500)
* Net::ProtoFatalError: fatal error (errno.550)
* Net::ProtoUnknownError: unknown error
* Net::ProtoServerBusy: temporary error (errno.420/450)
: ready( from_domain, to_addrs ) {|adapter| .... }
This method stands by the SMTP object for sending mail.
In the block of this iterator, you can call ONLY 'write' method
for 'adapter'.
# usage example
SMTP.start( 'localhost', 25 ) do |smtp|
smtp.ready( from, to ) do |adapter|
adapter.write str1
adapter.write str2
adapter.write str3
end
end
: finish
This method ends SMTP.
If protocol had not started, do nothind and return false.
=end
class SMTP < Protocol
protocol_param :port, '25'
protocol_param :command_type, '::Net::SMTPCommand'
def sendmail( mailsrc, fromaddr, toaddrs, &block )
@command.mailfrom fromaddr
@command.rcpt toaddrs
@command.data
@command.write_mail( mailsrc, &block )
end
def ready( fromaddr, toaddrs, &block )
sendmail nil, fromaddr, toaddrs, &block
end
attr :esmtp
private
def do_start( helodom = ENV['HOSTNAME'] )
unless helodom then
raise ArgumentError, "cannot get hostname"
end
@esmtp = false
begin
@command.ehlo helodom
@esmtp = true
rescue ProtocolError
@command.helo helodom
end
end
end
SMTPSession = SMTP
=begin
== Net::SMTPCommand
=== Super Class
Net::Command
=== Class Methods
: new( socket )
This method creates new SMTPCommand object, and open SMTP.
=== Methods
: helo( helo_domain )
This method send "HELO" command and start SMTP.
helo_domain is localhost's FQDN.
: mailfrom( from_addr )
This method sends "MAIL FROM" command.
from_addr is your mail address(????@????).
: rcpt( to_addrs )
This method sends "RCPT TO" command.
to_addrs is array of mail address(???@???) of destination.
: data
This method sends "DATA" command.
: write_mail( mailsrc )
: write_mail {|socket| ... }
send 'mailsrc' as mail.
SMTPCommand reads strings from 'mailsrc' by calling 'each' iterator.
When iterator, SMTPCommand only stand by socket and pass it.
(The socket will accepts only 'in_write' method in the block)
: quit
This method sends "QUIT" command and ends SMTP session.
=end
class SMTPCommand < Command
def initialize( sock )
super
check_reply SuccessCode
end
def helo( fromdom )
getok sprintf( 'HELO %s', fromdom )
end
def ehlo( fromdom )
getok sprintf( 'EHLO %s', fromdom )
end
def mailfrom( fromaddr )
getok sprintf( 'MAIL FROM:<%s>', fromaddr )
end
def rcpt( toaddrs )
toaddrs.each do |i|
getok sprintf( 'RCPT TO:<%s>', i )
end
end
def data
getok 'DATA', ContinueCode
end
def write_mail( mailsrc, &block )
@socket.write_pendstr mailsrc, &block
check_reply SuccessCode
end
alias sendmail write_mail
private
def do_quit
getok 'QUIT'
end
def get_reply
arr = read_reply
stat = arr[0][0,3]
klass = UnknownCode
klass = case stat[0]
when ?2 then SuccessCode
when ?3 then ContinueCode
when ?4 then ServerBusyCode
when ?5 then
case stat[1]
when ?0 then SyntaxErrorCode
when ?5 then FatalErrorCode
end
end
klass.new( stat, arr.join('') )
end
def read_reply
arr = []
while (str = @socket.readline)[3] == ?- do # ex: "210-..."
arr.push str
end
arr.push str
return arr
end
end
end
|
