Integrate soledad and keymanager in the client

1 files changed, 279 insertions, 0 deletions

diff --git a/src/leap/services/soledad/soledadbootstrapper.py b/src/leap/services/soledad/soledadbootstrapper.py
new file mode 100644
index 00000000..51c53a6e
--- /dev/null
+++ b/src/leap/services/soledad/soledadbootstrapper.py
@@ -0,0 +1,279 @@
+# -*- coding: utf-8 -*-
+# soledadbootstrapper.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/>.
+
+"""
+Soledad bootstrapping
+"""
+
+import logging
+import os
+
+import requests
+
+from PySide import QtCore
+from mock import Mock
+
+from leap.common.check import leap_assert, leap_assert_type
+from leap.common.files import get_mtime
+from leap.common.keymanager import KeyManager, openpgp
+from leap.common.keymanager.errors import KeyNotFound
+from leap.config.providerconfig import ProviderConfig
+from leap.crypto.srpauth import SRPAuth
+from leap.services.soledad.soledadconfig import SoledadConfig
+from leap.util.request_helpers import get_content
+from leap.soledad import Soledad
+
+logger = logging.getLogger(__name__)
+
+
+class SoledadBootstrapper(QtCore.QObject):
+    """
+    Soledad init procedure
+    """
+
+    PASSED_KEY = "passed"
+    ERROR_KEY = "error"
+
+    PUBKEY_KEY = "user[public_key]"
+
+    IDLE_SLEEP_INTERVAL = 100
+
+    # All dicts returned are of the form
+    # {"passed": bool, "error": str}
+    download_config = QtCore.Signal(dict)
+    gen_key = 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._soledad_config = None
+        self._keymanager = None
+        self._download_if_needed = False
+        self._user = ""
+        self._password = ""
+
+    def _load_and_sync_soledad(self, srp_auth):
+        """
+        Once everthing is in the right place, we instantiate and sync
+        Soledad
+
+        :param srp_auth: SRPAuth object used
+        :type srp_auth: SRPAuth
+        """
+        uuid = srp_auth.get_uid()
+
+        prefix = os.path.join(self._soledad_config.get_path_prefix(),
+                              "leap", "soledad")
+        secrets_path = "%s/%s.secret" % (prefix, uuid)
+        local_db_path = "%s/%s.db" % (prefix, uuid)
+
+        # TODO: use the proper URL
+        server_url = 'https://mole.dev.bitmask.net:2424/user-%s' % (uuid,)
+        # server_url = self._soledad_config.get_hosts(...)
+
+        cert_file = self._provider_config.get_ca_cert_path()
+
+        self._soledad = Soledad(uuid,
+                                self._password.encode("utf-8"),
+                                secrets_path,
+                                local_db_path,
+                                server_url,
+                                cert_file,
+                                srp_auth.get_token())
+        self._soledad.sync()
+
+    def _download_config(self):
+        """
+        Downloads the Soledad 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 Soledad config for %s" %
+                     (self._provider_config.get_domain(),))
+
+        download_config_data = {
+            self.PASSED_KEY: False,
+            self.ERROR_KEY: ""
+        }
+
+        self._soledad_config = SoledadConfig()
+
+        try:
+            headers = {}
+            mtime = get_mtime(os.path.join(self._soledad_config
+                                           .get_path_prefix(),
+                                           "leap",
+                                           "providers",
+                                           self._provider_config.get_domain(),
+                                           "soledad-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/soledad-service.json" % (
+                self._provider_config.get_api_uri(),
+                self._provider_config.get_api_version())
+            logger.debug('Downloading soledad 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("Soledad definition has not been modified")
+            else:
+                soledad_definition, mtime = get_content(res)
+
+                self._soledad_config.load(data=soledad_definition, mtime=mtime)
+                self._soledad_config.save(["leap",
+                                           "providers",
+                                           self._provider_config.get_domain(),
+                                           "soledad-service.json"])
+
+            self._load_and_sync_soledad(srp_auth)
+
+            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 _gen_key(self):
+        """
+        Generates the key pair if needed, uploads it to the webapp and
+        nickserver
+
+        :return: True if everything is done successfully, False
+        otherwise
+        :rtype: bool
+        """
+        leap_assert(self._provider_config,
+                    "We need a provider configuration!")
+
+        # XXX Sanitize this
+        address = "%s@%s" % (self._user, self._provider_config.get_domain())
+
+        logger.debug("Retrieving key for %s" % (address,))
+
+        genkey_data = {
+            self.PASSED_KEY: False,
+            self.ERROR_KEY: ""
+        }
+
+        try:
+            srp_auth = SRPAuth(self._provider_config)
+            self._keymanager = KeyManager(
+                address,
+                "https://nickserver",  # TODO: nickserver url, none for now
+                self._soledad,
+                token=srp_auth.get_token())
+            self._keymanager._fetcher.put = Mock()
+            try:
+                self._keymanager.get_key(address, openpgp.OpenPGPKey,
+                                         private=True, fetch_remote=False)
+            except KeyNotFound:
+                logger.debug("Key not found. Generating key for %s" % (address,))
+                self._keymanager.gen_key(openpgp.OpenPGPKey)
+
+                logger.debug("Key generated successfully.")
+
+            cookies = None
+            session_id = srp_auth.get_session_id()
+            if session_id:
+                cookies = {"_session_id": session_id}
+
+            key_uri = "%s/%s/users/%s.json" % (
+                self._provider_config.get_api_uri(),
+                self._provider_config.get_api_version(),
+                srp_auth.get_uid())
+
+            logger.debug("Uploading public key to %s" % (key_uri,))
+
+            pubkey = self._keymanager.get_key(address, openpgp.OpenPGPKey,
+                                              private=False, fetch_remote=False)
+            key_data = {
+                self.PUBKEY_KEY: pubkey.key_data,
+            }
+
+            # TODO: check if uploaded before uploading it
+            key_result = self._session.put(key_uri,
+                                           data=key_data,
+                                           verify=self._provider_config
+                                           .get_ca_cert_path(),
+                                           cookies=cookies)
+            key_result.raise_for_status()
+            genkey_data[self.PASSED_KEY] = True
+        except Exception as e:
+            genkey_data[self.PASSED_KEY] = False
+            genkey_data[self.ERROR_KEY] = "%s" % (e,)
+
+        logger.debug("Emitting gen_key %s" % (genkey_data,))
+        self.gen_key.emit(genkey_data)
+
+        return genkey_data[self.PASSED_KEY]
+
+    def run_soledad_setup_checks(self,
+                                 checker,
+                                 provider_config,
+                                 user,
+                                 password,
+                                 download_if_needed=False):
+        """
+        Starts the checks needed for a new soledad setup
+
+        :param provider_config: Provider configuration
+        :type provider_config: ProviderConfig
+        """
+        leap_assert_type(provider_config, ProviderConfig)
+
+        self._provider_config = provider_config
+        self._download_if_needed = download_if_needed
+        self._user = user
+        self._password = password
+
+        checker.add_checks([
+            self._download_config,
+            self._gen_key
+        ])