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# -*- coding: utf-8 -*-
# smtpbootstrapper.py
# Copyright (C) 2013 LEAP
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
"""
SMTP bootstrapping
"""
import logging
import os
import requests
from PySide import QtCore
from leap.common.check import leap_assert, leap_assert_type
from leap.common.files import get_mtime
from leap.config.providerconfig import ProviderConfig
from leap.crypto.srpauth import SRPAuth
from leap.util.request_helpers import get_content
logger = logging.getLogger(__name__)
class SMTPBootstrapper(QtCore.QObject):
"""
SMTP init procedure
"""
PASSED_KEY = "passed"
ERROR_KEY = "error"
IDLE_SLEEP_INTERVAL = 100
# All dicts returned are of the form
# {"passed": bool, "error": str}
download_config = QtCore.Signal(dict)
def __init__(self):
QtCore.QObject.__init__(self)
# **************************************************** #
# Dependency injection helpers, override this for more
# granular testing
self._fetcher = requests
# **************************************************** #
self._session = self._fetcher.session()
self._provider_config = None
self._smtp_config = None
self._download_if_needed = False
def _download_config(self):
"""
Downloads the SMTP config for the given provider
:return: True if everything went as expected, False otherwise
:rtype: bool
"""
leap_assert(self._provider_config,
"We need a provider configuration!")
logger.debug("Downloading SMTP config for %s" %
(self._provider_config.get_domain(),))
download_config_data = {
self.PASSED_KEY: False,
self.ERROR_KEY: ""
}
try:
headers = {}
mtime = get_mtime(os.path.join(self._smtp_config
.get_path_prefix(),
"leap",
"providers",
self._provider_config.get_domain(),
"smtp-service.json"))
if self._download_if_needed and mtime:
headers['if-modified-since'] = mtime
# there is some confusion with this uri,
config_uri = "%s/%s/config/smtp-service.json" % (
self._provider_config.get_api_uri(),
self._provider_config.get_api_version())
logger.debug('Downloading SMTP config from: %s' % config_uri)
srp_auth = SRPAuth(self._provider_config)
session_id = srp_auth.get_session_id()
cookies = None
if session_id:
cookies = {"_session_id": session_id}
res = self._session.get(config_uri,
verify=self._provider_config
.get_ca_cert_path(),
headers=headers,
cookies=cookies)
res.raise_for_status()
# Not modified
if res.status_code == 304:
logger.debug("SMTP definition has not been modified")
self._smtp_config.load(os.path.join(
"leap", "providers",
self._provider_config.get_domain(),
"smtp-service.json"))
else:
smtp_definition, mtime = get_content(res)
self._smtp_config.load(data=smtp_definition, mtime=mtime)
self._smtp_config.save(["leap",
"providers",
self._provider_config.get_domain(),
"smtp-service.json"])
download_config_data[self.PASSED_KEY] = True
except Exception as e:
download_config_data[self.PASSED_KEY] = False
download_config_data[self.ERROR_KEY] = "%s" % (e,)
logger.debug("Emitting download_config %s" % (download_config_data,))
self.download_config.emit(download_config_data)
return download_config_data[self.PASSED_KEY]
def run_smtp_setup_checks(self,
checker,
provider_config,
smtp_config,
download_if_needed=False):
"""
Starts the checks needed for a new smtp setup
:param checker: Object that executes actions in a different
thread
:type checker: leap.util.checkerthread.CheckerThread
:param provider_config: Provider configuration
:type provider_config: ProviderConfig
:param smtp_config: SMTP configuration to populate
:type smtp_config: SMTPConfig
:param download_if_needed: True if it should check for mtime
for the file
:type download_if_needed: bool
"""
leap_assert_type(provider_config, ProviderConfig)
self._provider_config = provider_config
self._smtp_config = smtp_config
self._download_if_needed = download_if_needed
checker.add_checks([
self._download_config
])
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