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# Copyright (C) 1998 by the Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 0211-1307, USA.
# A quick hack. Talk to the SMTP port.
# Right now this isn't very functional.
# A lot of functionality was borrowed directly from ftplib...
# John Viega (viega@list.org)
# >>> from smtplib import *
# >>> s = SmtpConnection('list.org')
# >>> s.helo('adder.cs.virginia.edu')
# >>> s.send(to='viega@list.org', frm='jtv2j@cs.virginia.edu', text='hello, world!')
# >>> s.quit()
from socket import *
import string
SMTP_PORT = 25
CRLF = '\r\n'
# Exception raised when an error or invalid response is received
error_reply = 'smtplib.error_reply' # unexpected [123]xx reply
error_temp = 'smtplib.error_temp' # 4xx errors
error_perm = 'smtplib.error_perm' # 5xx errors
error_proto = 'smtplib.error_proto' # response does not begin with [1-5]
class SmtpConnection:
def __init__(self, host=''):
self.host = host
self._file = None
self.connect()
def connect(self):
self._sock = socket(AF_INET, SOCK_STREAM)
self._sock.connect(self.host, SMTP_PORT)
self._file = self._sock.makefile('r')
self.getresp()
def helo(self, host):
self._sock.send('HELO %s\r\n' % host)
self.getresp()
def quit(self):
self._sock.send('QUIT\r\n')
self.getresp()
# text should be \n at eol, we'll add the \r.
def send(self, to, frm, text, headers=None):
if headers:
hlines = string.split(headers, '\n')
lines = string.split(text, '\n')
self._sock.send('MAIL FROM: %s\r\n' % frm)
self.getresp()
self._sock.send('RCPT TO: %s\r\n' % to)
self.getresp()
self._sock.send('DATA\r\n')
self.getresp()
if headers:
for line in hlines:
self._sock.send(line + '\r\n')
self._sock.send('\r\n')
for line in lines:
if line == '.': line = '..'
self._sock.send(line + '\r\n')
self._sock.send('.\r\n')
self.getresp()
# Private crap from here down.
def getline(self):
line = self._file.readline()
if not line: raise EOFError
if line[-2:] == CRLF: line = line[:-2]
elif line[-1:] in CRLF: line = line[:-1]
return line
# Internal: get a response from the server, which may possibly
# consist of multiple lines. Return a single string with no
# trailing CRLF. If the response consists of multiple lines,
# these are separated by '\n' characters in the string
def getmultiline(self):
line = self.getline()
if line[3:4] == '-':
code = line[:3]
while 1:
nextline = self.getline()
line = line + ('\n' + nextline)
if nextline[:3] == code and \
nextline[3:4] <> '-':
break
return line
def getresp(self):
resp = self.getmultiline()
self.lastresp = resp[:3]
c = resp[:1]
if c == '4':
raise error_temp, resp
if c == '5':
raise error_perm, resp
if c not in '123':
raise error_proto, resp
return resp
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