Merge pull request #671 from nikriek/jwt-support

Support login using Javascript Web Tokens (JWT)
This commit is contained in:
Erik Johnston 2016-03-29 16:31:42 +01:00
commit f5bf45a2e5
4 changed files with 93 additions and 1 deletions

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@ -29,13 +29,14 @@ from .key import KeyConfig
from .saml2 import SAML2Config
from .cas import CasConfig
from .password import PasswordConfig
from .jwt import JWTConfig
class HomeServerConfig(TlsConfig, ServerConfig, DatabaseConfig, LoggingConfig,
RatelimitConfig, ContentRepositoryConfig, CaptchaConfig,
VoipConfig, RegistrationConfig, MetricsConfig, ApiConfig,
AppServiceConfig, KeyConfig, SAML2Config, CasConfig,
PasswordConfig,):
JWTConfig, PasswordConfig,):
pass

37
synapse/config/jwt.py Normal file
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@ -0,0 +1,37 @@
# -*- coding: utf-8 -*-
# Copyright 2015 Niklas Riekenbrauck
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from ._base import Config
class JWTConfig(Config):
def read_config(self, config):
jwt_config = config.get("jwt_config", None)
if jwt_config:
self.jwt_enabled = jwt_config.get("enabled", False)
self.jwt_secret = jwt_config["secret"]
self.jwt_algorithm = jwt_config["algorithm"]
else:
self.jwt_enabled = False
self.jwt_secret = None
self.jwt_algorithm = None
def default_config(self, **kwargs):
return """\
# jwt_config:
# enabled: true
# secret: "a secret"
# algorithm: "HS256"
"""

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@ -36,6 +36,7 @@ REQUIREMENTS = {
"blist": ["blist"],
"pysaml2>=3.0.0,<4.0.0": ["saml2>=3.0.0,<4.0.0"],
"pymacaroons-pynacl": ["pymacaroons"],
"pyjwt": ["jwt"],
}
CONDITIONAL_REQUIREMENTS = {
"web_client": {

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@ -33,6 +33,9 @@ from saml2.client import Saml2Client
import xml.etree.ElementTree as ET
import jwt
from jwt.exceptions import InvalidTokenError
logger = logging.getLogger(__name__)
@ -43,12 +46,16 @@ class LoginRestServlet(ClientV1RestServlet):
SAML2_TYPE = "m.login.saml2"
CAS_TYPE = "m.login.cas"
TOKEN_TYPE = "m.login.token"
JWT_TYPE = "m.login.jwt"
def __init__(self, hs):
super(LoginRestServlet, self).__init__(hs)
self.idp_redirect_url = hs.config.saml2_idp_redirect_url
self.password_enabled = hs.config.password_enabled
self.saml2_enabled = hs.config.saml2_enabled
self.jwt_enabled = hs.config.jwt_enabled
self.jwt_secret = hs.config.jwt_secret
self.jwt_algorithm = hs.config.jwt_algorithm
self.cas_enabled = hs.config.cas_enabled
self.cas_server_url = hs.config.cas_server_url
self.cas_required_attributes = hs.config.cas_required_attributes
@ -57,6 +64,8 @@ class LoginRestServlet(ClientV1RestServlet):
def on_GET(self, request):
flows = []
if self.jwt_enabled:
flows.append({"type": LoginRestServlet.JWT_TYPE})
if self.saml2_enabled:
flows.append({"type": LoginRestServlet.SAML2_TYPE})
if self.cas_enabled:
@ -98,6 +107,10 @@ class LoginRestServlet(ClientV1RestServlet):
"uri": "%s%s" % (self.idp_redirect_url, relay_state)
}
defer.returnValue((200, result))
elif self.jwt_enabled and (login_submission["type"] ==
LoginRestServlet.JWT_TYPE):
result = yield self.do_jwt_login(login_submission)
defer.returnValue(result)
# TODO Delete this after all CAS clients switch to token login instead
elif self.cas_enabled and (login_submission["type"] ==
LoginRestServlet.CAS_TYPE):
@ -209,6 +222,46 @@ class LoginRestServlet(ClientV1RestServlet):
defer.returnValue((200, result))
@defer.inlineCallbacks
def do_jwt_login(self, login_submission):
token = login_submission['token']
if token is None:
raise LoginError(401, "Unauthorized", errcode=Codes.UNAUTHORIZED)
try:
payload = jwt.decode(token, self.jwt_secret, algorithms=[self.jwt_algorithm])
except InvalidTokenError:
raise LoginError(401, "Invalid JWT", errcode=Codes.UNAUTHORIZED)
user = payload['user']
if user is None:
raise LoginError(401, "Invalid JWT", errcode=Codes.UNAUTHORIZED)
user_id = UserID.create(user, self.hs.hostname).to_string()
auth_handler = self.handlers.auth_handler
user_exists = yield auth_handler.does_user_exist(user_id)
if user_exists:
user_id, access_token, refresh_token = (
yield auth_handler.get_login_tuple_for_user_id(user_id)
)
result = {
"user_id": user_id, # may have changed
"access_token": access_token,
"refresh_token": refresh_token,
"home_server": self.hs.hostname,
}
else:
user_id, access_token = (
yield self.handlers.registration_handler.register(localpart=user)
)
result = {
"user_id": user_id, # may have changed
"access_token": access_token,
"home_server": self.hs.hostname,
}
defer.returnValue((200, result))
# TODO Delete this after all CAS clients switch to token login instead
def parse_cas_response(self, cas_response_body):
root = ET.fromstring(cas_response_body)