From c33f5c1a2414632f21183f41ecd4aef00e46a437 Mon Sep 17 00:00:00 2001 From: Steven Hammerton Date: Wed, 7 Oct 2015 14:45:57 +0100 Subject: Provide ability to login using CAS --- synapse/config/cas.py | 39 +++++++++++++++++++++++++++++++++++++++ synapse/config/homeserver.py | 3 ++- 2 files changed, 41 insertions(+), 1 deletion(-) create mode 100644 synapse/config/cas.py (limited to 'synapse/config') diff --git a/synapse/config/cas.py b/synapse/config/cas.py new file mode 100644 index 0000000000..81d034e8f0 --- /dev/null +++ b/synapse/config/cas.py @@ -0,0 +1,39 @@ +# -*- coding: utf-8 -*- +# Copyright 2015 OpenMarket Ltd +# +# 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 CasConfig(Config): + """Cas Configuration + + cas_server_url: URL of CAS server + """ + + def read_config(self, config): + cas_config = config.get("cas_config", None) + if cas_config: + self.cas_enabled = True + self.cas_server_url = cas_config["server_url"] + else: + self.cas_enabled = False + self.cas_server_url = None + + def default_config(self, config_dir_path, server_name, **kwargs): + return """ + # Enable CAS for registration and login. + #cas_config: + # server_url: "https://cas-server.com" + """ diff --git a/synapse/config/homeserver.py b/synapse/config/homeserver.py index d77f045406..3039f3c0bf 100644 --- a/synapse/config/homeserver.py +++ b/synapse/config/homeserver.py @@ -26,12 +26,13 @@ from .metrics import MetricsConfig from .appservice import AppServiceConfig from .key import KeyConfig from .saml2 import SAML2Config +from .cas import CasConfig class HomeServerConfig(TlsConfig, ServerConfig, DatabaseConfig, LoggingConfig, RatelimitConfig, ContentRepositoryConfig, CaptchaConfig, VoipConfig, RegistrationConfig, MetricsConfig, - AppServiceConfig, KeyConfig, SAML2Config, ): + AppServiceConfig, KeyConfig, SAML2Config, CasConfig): pass -- cgit 1.5.1 From 76421c496d1ee4ba5ea97fb24466156d0ddc0723 Mon Sep 17 00:00:00 2001 From: Steven Hammerton Date: Mon, 12 Oct 2015 11:11:49 +0100 Subject: Allow optional config params for a required attribute and it's value, if specified any CAS user must have the given attribute and the value must equal --- synapse/config/cas.py | 15 +++++++++++++++ synapse/rest/client/v1/login.py | 16 +++++++++++++++- 2 files changed, 30 insertions(+), 1 deletion(-) (limited to 'synapse/config') diff --git a/synapse/config/cas.py b/synapse/config/cas.py index 81d034e8f0..4d1dd8cc7b 100644 --- a/synapse/config/cas.py +++ b/synapse/config/cas.py @@ -27,13 +27,28 @@ class CasConfig(Config): if cas_config: self.cas_enabled = True self.cas_server_url = cas_config["server_url"] + + if "required_attribute" in cas_config: + self.cas_required_attribute = cas_config["required_attribute"] + else: + self.cas_required_attribute = None + + if "required_attribute_value" in cas_config: + self.cas_required_attribute_value = cas_config["required_attribute_value"] + else: + self.cas_required_attribute_value = None + else: self.cas_enabled = False self.cas_server_url = None + self.cas_required_attribute = None + self.cas_required_attribute_value = None def default_config(self, config_dir_path, server_name, **kwargs): return """ # Enable CAS for registration and login. #cas_config: # server_url: "https://cas-server.com" + # #required_attribute: something + # #required_attribute_value: true """ diff --git a/synapse/rest/client/v1/login.py b/synapse/rest/client/v1/login.py index 0e12880ab5..1e62beaff8 100644 --- a/synapse/rest/client/v1/login.py +++ b/synapse/rest/client/v1/login.py @@ -45,8 +45,9 @@ class LoginRestServlet(ClientV1RestServlet): self.idp_redirect_url = hs.config.saml2_idp_redirect_url self.saml2_enabled = hs.config.saml2_enabled self.cas_enabled = hs.config.cas_enabled - self.cas_server_url = hs.config.cas_server_url + self.cas_required_attribute = hs.config.cas_required_attribute + self.cas_required_attribute_value = hs.config.cas_required_attribute_value self.servername = hs.config.server_name def on_GET(self, request): @@ -126,6 +127,19 @@ class LoginRestServlet(ClientV1RestServlet): @defer.inlineCallbacks def do_cas_login(self, cas_response_body): (user, attributes) = self.parse_cas_response(cas_response_body) + + if self.cas_required_attribute is not None: + # If required attribute was not in CAS Response - Forbidden + if self.cas_required_attribute not in attributes: + raise LoginError(401, "Unauthorized", errcode=Codes.UNAUTHORIZED) + + # Also need to check value + if self.cas_required_attribute_value is not None: + actualValue = attributes[self.cas_required_attribute] + # If required attribute value does not match expected - Forbidden + if self.cas_required_attribute_value != actualValue: + raise LoginError(401, "Unauthorized", 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) -- cgit 1.5.1 From 01a5f1991c8e54d0762cf1647c941d00c938f994 Mon Sep 17 00:00:00 2001 From: Steven Hammerton Date: Mon, 12 Oct 2015 14:43:17 +0100 Subject: Support multiple required attributes in CAS response, and in a nicer config format too --- synapse/config/cas.py | 19 ++++--------------- synapse/rest/client/v1/login.py | 13 ++++++------- 2 files changed, 10 insertions(+), 22 deletions(-) (limited to 'synapse/config') diff --git a/synapse/config/cas.py b/synapse/config/cas.py index 4d1dd8cc7b..e884d03fe6 100644 --- a/synapse/config/cas.py +++ b/synapse/config/cas.py @@ -27,28 +27,17 @@ class CasConfig(Config): if cas_config: self.cas_enabled = True self.cas_server_url = cas_config["server_url"] - - if "required_attribute" in cas_config: - self.cas_required_attribute = cas_config["required_attribute"] - else: - self.cas_required_attribute = None - - if "required_attribute_value" in cas_config: - self.cas_required_attribute_value = cas_config["required_attribute_value"] - else: - self.cas_required_attribute_value = None - + self.cas_required_attributes = cas_config.get("required_attributes", None) else: self.cas_enabled = False self.cas_server_url = None - self.cas_required_attribute = None - self.cas_required_attribute_value = None + self.cas_required_attributes = {} def default_config(self, config_dir_path, server_name, **kwargs): return """ # Enable CAS for registration and login. #cas_config: # server_url: "https://cas-server.com" - # #required_attribute: something - # #required_attribute_value: true + # #required_attributes: + # # name: value """ diff --git a/synapse/rest/client/v1/login.py b/synapse/rest/client/v1/login.py index 1e62beaff8..84774e61aa 100644 --- a/synapse/rest/client/v1/login.py +++ b/synapse/rest/client/v1/login.py @@ -46,8 +46,7 @@ class LoginRestServlet(ClientV1RestServlet): self.saml2_enabled = hs.config.saml2_enabled self.cas_enabled = hs.config.cas_enabled self.cas_server_url = hs.config.cas_server_url - self.cas_required_attribute = hs.config.cas_required_attribute - self.cas_required_attribute_value = hs.config.cas_required_attribute_value + self.cas_required_attributes = hs.config.cas_required_attributes self.servername = hs.config.server_name def on_GET(self, request): @@ -128,16 +127,16 @@ class LoginRestServlet(ClientV1RestServlet): def do_cas_login(self, cas_response_body): (user, attributes) = self.parse_cas_response(cas_response_body) - if self.cas_required_attribute is not None: + for required_attribute in self.cas_required_attributes: # If required attribute was not in CAS Response - Forbidden - if self.cas_required_attribute not in attributes: + if required_attribute not in attributes: raise LoginError(401, "Unauthorized", errcode=Codes.UNAUTHORIZED) # Also need to check value - if self.cas_required_attribute_value is not None: - actualValue = attributes[self.cas_required_attribute] + if self.cas_required_attributes[required_attribute] is not None: + actualValue = attributes[required_attribute] # If required attribute value does not match expected - Forbidden - if self.cas_required_attribute_value != actualValue: + if self.cas_required_attributes[required_attribute] != actualValue: raise LoginError(401, "Unauthorized", errcode=Codes.UNAUTHORIZED) user_id = UserID.create(user, self.hs.hostname).to_string() -- cgit 1.5.1 From ab7f9bb861791b9415d80f0e71d7b4b867b0a445 Mon Sep 17 00:00:00 2001 From: Steven Hammerton Date: Mon, 12 Oct 2015 14:58:59 +0100 Subject: Default cas_required_attributes to empty dictionary --- synapse/config/cas.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'synapse/config') diff --git a/synapse/config/cas.py b/synapse/config/cas.py index e884d03fe6..d268680729 100644 --- a/synapse/config/cas.py +++ b/synapse/config/cas.py @@ -27,7 +27,7 @@ class CasConfig(Config): if cas_config: self.cas_enabled = True self.cas_server_url = cas_config["server_url"] - self.cas_required_attributes = cas_config.get("required_attributes", None) + self.cas_required_attributes = cas_config.get("required_attributes", {}) else: self.cas_enabled = False self.cas_server_url = None -- cgit 1.5.1