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#! /usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright (C) 2007 Michal Mazurek; WALLIX, SARL. <michal.mazurek at wallix dot com>
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
import smtplib
import types
import socket, os
from sshproxy.config import get_config, ConfigSection
from sshproxy.util import istrue
from sshproxy import log
message_template = """
Reported error: %(reason)s
Client: %(client)s
Site: %(site)s
Connection Type: %(conntype)s
Date: %(when)s
Additional message:
%(msg)s
--
Your sshproxy <%(sshproxy_id)s>
"""
class EmailNotifierConfigSection(ConfigSection):
section_id = 'email_notifier'
section_defaults = {
'admin_email': '',
'smtp_server': 'localhost',
'smtp_port': '25',
'smtp_login': '',
'smtp_password': '',
'smtp_sender': '%s@%s' % (os.environ['USER'], socket.getfqdn()),
'smtp_tls': 'no',
'message_template': message_template.replace('%', '%%'),
}
types = {
'smtp_port': int,
}
EmailNotifierConfigSection.register()
class Email(object):
"""Class for sending emails using smtplib"""
recipients = []
def __init__(self, server, port=25, login="", password="", tls=False):
"""Constructor
Email(server, [port, [login, [password]], tls])
@param server: smtp server address
@param port: smtp port number
@param login: auth username (optional)
@param password: auth password (optional)
@param tls: use TLS (defaults to False)
"""
self.smtp_server = server
self.smtp_port = port
self.smtp_tls = tls
self.login = login
self.password = password
def new(self, recipients=None, sender=None, subject=None, msg=None):
"""Creating new email
@param recipient: string or iterable object containing string
@param sender: string with sender address
@param subject: subject of message
@param msg: message body
"""
try:
if types.StringType == type(recipients):
recipients = [recipients]
for recipient in recipients:
self.recipients.append(recipient)
except TypeError:
raise TypError, "'recipients' is not iterable, nor a string"
self.sender = sender
self.subject = subject
self.msg = msg
def _connect_to_smtp(self):
"""Connecting to smtp server, this methods runs also self._authorize()"""
self._connection = smtplib.SMTP(self.smtp_server, self.smtp_port)
self._starttls()
self._authorize()
def _starttls(self):
"""If TLS is requested, try to put the connection in TLS mode."""
if self.smtp_tls:
self._connection.starttls()
def _authorize(self):
"""If there are give login and password, it tries to authorize on
smtp server"""
if self.login and self.password:
self._connection.login(self.login, self.password)
def send_email(self):
"""Method which sends email, if there are any problems it raises
smtplib.SMTPException"""
msg = ""
msg += "From: %s\n" % self.sender
msg += "To: %s\n" % ", ".join(self.recipients)
msg += "Subject: %s\n\n%s" % (self.subject, self.msg)
try:
self._connect_to_smtp()
except (socket.error, socket.herror):
return False
result = self._connection.sendmail(self.sender, self.recipients, msg)
if result:
errmsg = ""
for recp in result.keys():
errmsg += """Server returned error for recipient: %s
%s
%s
""" % (recp, result[recp][0], result[recp][1])
raise smtplib.SMTPException, errmsg
self._connection.quit()
return True
from sshproxy.registry import get_class
Server = get_class("Server")
class EmailNotifierServer(Server):
def do_work(self):
self.get_site_name()
Server.do_work(self)
def get_site_name(self):
"""getting the site name"""
if len(self.args) == 0:
self.g_site = "Console Session"
self.g_conn_type = "scp"
else:
if self.args[0] == "scp":
self.g_conn_type = "scp"
argv = self.args[1:]
while True:
if argv[0][0] == '-':
argv.pop(0)
continue
break
self.g_site = argv[0].split(":", 1)[0]
elif self.args[0][0] != '-':
if len(self.args) > 1:
self.g_conn_type = "remote_exec"
else:
self.g_conn_type = "shell"
self.g_site = self.args[0]
else:
self.g_site = "proxy_command"
return self.g_site
def report_failure(self, reason, *args, **kwargs):
"""Reporting error
@param reason: reason of failure"""
from datetime import datetime
cfg = get_config('email_notifier')
tpldict = {}
tpldict['reason'] = reason
if len(args) > 0:
tpldict['msg'] = args[0]
else:
tpldict['msg'] = "No additional message."
tpldict['client'] = self.username
tpldict['site'] = self.g_site
tpldict['when'] = datetime.now()
tpldict['conntype'] = self.g_conn_type
tpldict['sshproxy_id'] = cfg['smtp_sender'] # ?
server = cfg['smtp_server']
try:
port = cfg['smtp_port']
except ValueError:
port = 25
login = cfg['smtp_login']
password = cfg['smtp_password']
admin_email = cfg['admin_email']
sender = cfg['smtp_sender']
tls = istrue(cfg["smtp_tls"])
msg = cfg['message_template'] % tpldict
if admin_email != "" and "@" in admin_email:
email = Email(server, port, login, password, tls=tls)
email.new(admin_email, sender, "Failure Report", msg)
try:
email.send_email()
except smtplib.SMTPException, e:
log.exception(e)
Server.report_failure(self, reason, *args, **kwargs)
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