diff options
Diffstat (limited to 'src/leap/services/eip/eipbootstrapper.py')
| -rw-r--r-- | src/leap/services/eip/eipbootstrapper.py | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/src/leap/services/eip/eipbootstrapper.py b/src/leap/services/eip/eipbootstrapper.py new file mode 100644 index 00000000..b2af0aea --- /dev/null +++ b/src/leap/services/eip/eipbootstrapper.py @@ -0,0 +1,178 @@ +# -*- coding: utf-8 -*- +# eipbootstrapper.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/>. + +""" +EIP bootstrapping +""" + +import logging +import os + +from PySide import QtCore + +from leap.common.check import leap_assert, leap_assert_type +from leap.common import certs +from leap.common.files import check_and_fix_urw_only, get_mtime, mkdir_p +from leap.config.providerconfig import ProviderConfig +from leap.crypto.srpauth import SRPAuth +from leap.services.eip.eipconfig import EIPConfig +from leap.util.request_helpers import get_content +from leap.services.abstractbootstrapper import AbstractBootstrapper + +logger = logging.getLogger(__name__) + + +class EIPBootstrapper(AbstractBootstrapper): + """ + Sets up EIP for a provider a series of checks and emits signals + after they are passed. + If a check fails, the subsequent checks are not executed + """ + + # All dicts returned are of the form + # {"passed": bool, "error": str} + download_config = QtCore.Signal(dict) + download_client_certificate = QtCore.Signal(dict) + + def __init__(self): + AbstractBootstrapper.__init__(self) + + self._provider_config = None + self._eip_config = None + self._download_if_needed = False + + def _download_config(self, *args): + """ + Downloads the EIP config for the given provider + """ + + leap_assert(self._provider_config, + "We need a provider configuration!") + + logger.debug("Downloading EIP config for %s" % + (self._provider_config.get_domain(),)) + + self._eip_config = EIPConfig() + + headers = {} + mtime = get_mtime(os.path.join(self._eip_config + .get_path_prefix(), + "leap", + "providers", + self._provider_config.get_domain(), + "eip-service.json")) + + if self._download_if_needed and mtime: + headers['if-modified-since'] = mtime + + # there is some confusion with this uri, + # it's in 1/config/eip, config/eip and config/1/eip... + config_uri = "%s/%s/config/eip-service.json" % ( + self._provider_config.get_api_uri(), + self._provider_config.get_api_version()) + logger.debug('Downloading eip config from: %s' % config_uri) + + res = self._session.get(config_uri, + verify=self._provider_config + .get_ca_cert_path(), + headers=headers) + res.raise_for_status() + + # Not modified + if res.status_code == 304: + logger.debug("EIP definition has not been modified") + else: + eip_definition, mtime = get_content(res) + + self._eip_config.load(data=eip_definition, mtime=mtime) + self._eip_config.save(["leap", + "providers", + self._provider_config.get_domain(), + "eip-service.json"]) + + def _download_client_certificates(self, *args): + """ + Downloads the EIP client certificate for the given provider + """ + leap_assert(self._provider_config, "We need a provider configuration!") + leap_assert(self._eip_config, "We need an eip configuration!") + + logger.debug("Downloading EIP client certificate for %s" % + (self._provider_config.get_domain(),)) + + client_cert_path = self._eip_config.\ + get_client_cert_path(self._provider_config, + about_to_download=True) + + # For re-download if something is wrong with the cert + self._download_if_needed = self._download_if_needed and \ + not certs.should_redownload(client_cert_path) + + if self._download_if_needed and \ + os.path.exists(client_cert_path): + check_and_fix_urw_only(client_cert_path) + return + + srp_auth = SRPAuth(self._provider_config) + session_id = srp_auth.get_session_id() + cookies = None + if session_id: + cookies = {"_session_id": session_id} + cert_uri = "%s/%s/cert" % ( + self._provider_config.get_api_uri(), + self._provider_config.get_api_version()) + logger.debug('getting cert from uri: %s' % cert_uri) + res = self._session.get(cert_uri, + verify=self._provider_config + .get_ca_cert_path(), + cookies=cookies) + res.raise_for_status() + client_cert = res.content + + if not certs.is_valid_pemfile(client_cert): + raise Exception(self.tr("The downloaded certificate is not a " + "valid PEM file")) + + mkdir_p(os.path.dirname(client_cert_path)) + + with open(client_cert_path, "w") as f: + f.write(client_cert) + + check_and_fix_urw_only(client_cert_path) + + def run_eip_setup_checks(self, + provider_config, + download_if_needed=False): + """ + Starts the checks needed for a new eip setup + + :param provider_config: Provider configuration + :type provider_config: ProviderConfig + """ + leap_assert(provider_config, "We need a provider config!") + leap_assert_type(provider_config, ProviderConfig) + + self._provider_config = provider_config + self._download_if_needed = download_if_needed + + cb_chain = [ + (self._download_config, self.download_config), + (self._download_client_certificates, + self.download_client_certificate) + ] + + return self.addCallbackChain(cb_chain) |