summaryrefslogtreecommitdiff
path: root/common
diff options
context:
space:
mode:
Diffstat (limited to 'common')
-rw-r--r--common/src/leap/soledad/common/couch/state.py46
1 files changed, 0 insertions, 46 deletions
diff --git a/common/src/leap/soledad/common/couch/state.py b/common/src/leap/soledad/common/couch/state.py
index a7f5b7b6..a4841d0d 100644
--- a/common/src/leap/soledad/common/couch/state.py
+++ b/common/src/leap/soledad/common/couch/state.py
@@ -19,13 +19,10 @@ Server state using CouchDatabase as backend.
"""
import couchdb
import re
-import time
from urlparse import urljoin
-from hashlib import sha512
from leap.soledad.common.log import getLogger
from leap.soledad.common.couch import CouchDatabase
-from leap.soledad.common.couch import couch_server
from leap.soledad.common.couch import CONFIG_DOC_ID
from leap.soledad.common.couch import SCHEMA_VERSION
from leap.soledad.common.couch import SCHEMA_VERSION_KEY
@@ -59,12 +56,6 @@ class CouchServerState(ServerState):
Inteface of the WSGI server with the CouchDB backend.
"""
- 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"
-
def __init__(self, couch_url, create_cmd=None,
check_schema_versions=False):
"""
@@ -164,40 +155,3 @@ class CouchServerState(ServerState):
delete databases.
"""
raise Unauthorized()
-
- def verify_token(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
- """
- with couch_server(self.couch_url) as server:
- # the tokens db rotates every 30 days, and the current db name is
- # "tokens_NNN", where NNN is the number of seconds since epoch
- # divide dby 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_dbname()
- 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:
- return False
- # 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:
- return False
- return True
-
- def _tokens_dbname(self):
- dbname = self.TOKENS_DB_PREFIX + \
- str(int(time.time() / self.TOKENS_DB_EXPIRE))
- return dbname