diff options
Diffstat (limited to 'server/src/leap')
| -rw-r--r-- | server/src/leap/soledad/server/__init__.py | 2 | ||||
| -rw-r--r-- | server/src/leap/soledad/server/auth.py | 55 | ||||
| -rw-r--r-- | server/src/leap/soledad/server/sync.py | 2 |
3 files changed, 7 insertions, 52 deletions
diff --git a/server/src/leap/soledad/server/__init__.py b/server/src/leap/soledad/server/__init__.py index 618ccb2b..00e1e9fb 100644 --- a/server/src/leap/soledad/server/__init__.py +++ b/server/src/leap/soledad/server/__init__.py @@ -104,7 +104,7 @@ from leap.soledad.server.sync import ( ) from leap.soledad.common import SHARED_DB_NAME -from leap.soledad.common.couch import CouchServerState +from leap.soledad.common.couch.state import CouchServerState # ---------------------------------------------------------------------------- # Soledad WSGI application diff --git a/server/src/leap/soledad/server/auth.py b/server/src/leap/soledad/server/auth.py index 02b54cca..ccbd6fbd 100644 --- a/server/src/leap/soledad/server/auth.py +++ b/server/src/leap/soledad/server/auth.py @@ -21,20 +21,16 @@ Authentication facilities for Soledad Server. """ -import time import httplib import json from u1db import DBNAME_CONSTRAINTS, errors as u1db_errors from abc import ABCMeta, abstractmethod from routes.mapper import Mapper -from couchdb.client import Server from twisted.python import log -from hashlib import sha512 from leap.soledad.common import SHARED_DB_NAME from leap.soledad.common import USER_DB_PREFIX -from leap.soledad.common.errors import InvalidAuthTokenError class URLToAuthorization(object): @@ -351,14 +347,12 @@ class SoledadTokenAuthMiddleware(SoledadAuthMiddleware): Token based authentication. """ - TOKENS_DB_PREFIX = "tokens_" - TOKENS_DB_EXPIRE = 30 * 24 * 3600 # 30 days in seconds - TOKENS_TYPE_KEY = "type" - TOKENS_TYPE_DEF = "Token" - TOKENS_USER_ID_KEY = "user_id" - TOKEN_AUTH_ERROR_STRING = "Incorrect address or token." + def __init__(self, app): + self._state = app.state + super(SoledadTokenAuthMiddleware, self).__init__(app) + def _verify_authentication_scheme(self, scheme): """ Verify if authentication scheme is valid. @@ -391,50 +385,11 @@ class SoledadTokenAuthMiddleware(SoledadAuthMiddleware): """ token = auth_data # we expect a cleartext token at this point try: - return self._verify_token_in_couch(uuid, token) - except InvalidAuthTokenError: - raise + return self._state.verify_token(uuid, token) except Exception as e: log.err(e) return False - def _verify_token_in_couch(self, uuid, token): - """ - Query couchdb to decide if C{token} is valid for C{uuid}. - - @param uuid: The user uuid. - @type uuid: str - @param token: The token. - @type token: str - - @raise InvalidAuthTokenError: Raised when token received from user is - either missing in the tokens db or is - invalid. - """ - server = Server(url=self._app.state.couch_url) - # the tokens db rotates every 30 days, and the current db name is - # "tokens_NNN", where NNN is the number of seconds since epoch divided - # by the rotate period in seconds. When rotating, old and new tokens - # db coexist during a certain window of time and valid tokens are - # replicated from the old db to the new one. See: - # https://leap.se/code/issues/6785 - dbname = self.TOKENS_DB_PREFIX + \ - str(int(time.time() / self.TOKENS_DB_EXPIRE)) - db = server[dbname] - # lookup key is a hash of the token to prevent timing attacks. - token = db.get(sha512(token).hexdigest()) - if token is None: - raise InvalidAuthTokenError() - # we compare uuid hashes to avoid possible timing attacks that - # might exploit python's builtin comparison operator behaviour, - # which fails immediatelly when non-matching bytes are found. - couch_uuid_hash = sha512(token[self.TOKENS_USER_ID_KEY]).digest() - req_uuid_hash = sha512(uuid).digest() - if token[self.TOKENS_TYPE_KEY] != self.TOKENS_TYPE_DEF \ - or couch_uuid_hash != req_uuid_hash: - raise InvalidAuthTokenError() - return True - def _get_auth_error_string(self): """ Get the error string for token auth. diff --git a/server/src/leap/soledad/server/sync.py b/server/src/leap/soledad/server/sync.py index 92b29102..db25c406 100644 --- a/server/src/leap/soledad/server/sync.py +++ b/server/src/leap/soledad/server/sync.py @@ -32,7 +32,7 @@ class SyncExchange(sync.SyncExchange): def __init__(self, db, source_replica_uid, last_known_generation, sync_id): """ :param db: The target syncing database. - :type db: CouchDatabase + :type db: SoledadBackend :param source_replica_uid: The uid of the source syncing replica. :type source_replica_uid: str :param last_known_generation: The last target replica generation the |