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authorPatrick Cloke <clokep@users.noreply.github.com>2021-04-20 14:55:20 -0400
committerGitHub <noreply@github.com>2021-04-20 14:55:20 -0400
commit683d6f75af0e941e9ab3bc0a985aa6ed5cc7a238 (patch)
tree29cb310f2a8dae564ef6c561ea2be30e11c7d1ea /synapse/config/saml2_config.py
parentMerge branch 'master' into develop (diff)
downloadsynapse-683d6f75af0e941e9ab3bc0a985aa6ed5cc7a238.tar.xz
Rename handler and config modules which end in handler/config. (#9816)
Diffstat (limited to 'synapse/config/saml2_config.py')
-rw-r--r--synapse/config/saml2_config.py415
1 files changed, 0 insertions, 415 deletions
diff --git a/synapse/config/saml2_config.py b/synapse/config/saml2_config.py
deleted file mode 100644
index 55a7838b10..0000000000
--- a/synapse/config/saml2_config.py
+++ /dev/null
@@ -1,415 +0,0 @@
-# Copyright 2018 New Vector Ltd
-# Copyright 2019 The Matrix.org Foundation C.I.C.
-#
-# 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.
-
-import logging
-from typing import Any, List
-
-from synapse.config.sso import SsoAttributeRequirement
-from synapse.python_dependencies import DependencyException, check_requirements
-from synapse.util.module_loader import load_module, load_python_module
-
-from ._base import Config, ConfigError
-from ._util import validate_config
-
-logger = logging.getLogger(__name__)
-
-DEFAULT_USER_MAPPING_PROVIDER = (
-    "synapse.handlers.saml_handler.DefaultSamlMappingProvider"
-)
-
-
-def _dict_merge(merge_dict, into_dict):
-    """Do a deep merge of two dicts
-
-    Recursively merges `merge_dict` into `into_dict`:
-      * For keys where both `merge_dict` and `into_dict` have a dict value, the values
-        are recursively merged
-      * For all other keys, the values in `into_dict` (if any) are overwritten with
-        the value from `merge_dict`.
-
-    Args:
-        merge_dict (dict): dict to merge
-        into_dict (dict): target dict
-    """
-    for k, v in merge_dict.items():
-        if k not in into_dict:
-            into_dict[k] = v
-            continue
-
-        current_val = into_dict[k]
-
-        if isinstance(v, dict) and isinstance(current_val, dict):
-            _dict_merge(v, current_val)
-            continue
-
-        # otherwise we just overwrite
-        into_dict[k] = v
-
-
-class SAML2Config(Config):
-    section = "saml2"
-
-    def read_config(self, config, **kwargs):
-        self.saml2_enabled = False
-
-        saml2_config = config.get("saml2_config")
-
-        if not saml2_config or not saml2_config.get("enabled", True):
-            return
-
-        if not saml2_config.get("sp_config") and not saml2_config.get("config_path"):
-            return
-
-        try:
-            check_requirements("saml2")
-        except DependencyException as e:
-            raise ConfigError(
-                e.message  # noqa: B306, DependencyException.message is a property
-            )
-
-        self.saml2_enabled = True
-
-        attribute_requirements = saml2_config.get("attribute_requirements") or []
-        self.attribute_requirements = _parse_attribute_requirements_def(
-            attribute_requirements
-        )
-
-        self.saml2_grandfathered_mxid_source_attribute = saml2_config.get(
-            "grandfathered_mxid_source_attribute", "uid"
-        )
-
-        self.saml2_idp_entityid = saml2_config.get("idp_entityid", None)
-
-        # user_mapping_provider may be None if the key is present but has no value
-        ump_dict = saml2_config.get("user_mapping_provider") or {}
-
-        # Use the default user mapping provider if not set
-        ump_dict.setdefault("module", DEFAULT_USER_MAPPING_PROVIDER)
-
-        # Ensure a config is present
-        ump_dict["config"] = ump_dict.get("config") or {}
-
-        if ump_dict["module"] == DEFAULT_USER_MAPPING_PROVIDER:
-            # Load deprecated options for use by the default module
-            old_mxid_source_attribute = saml2_config.get("mxid_source_attribute")
-            if old_mxid_source_attribute:
-                logger.warning(
-                    "The config option saml2_config.mxid_source_attribute is deprecated. "
-                    "Please use saml2_config.user_mapping_provider.config"
-                    ".mxid_source_attribute instead."
-                )
-                ump_dict["config"]["mxid_source_attribute"] = old_mxid_source_attribute
-
-            old_mxid_mapping = saml2_config.get("mxid_mapping")
-            if old_mxid_mapping:
-                logger.warning(
-                    "The config option saml2_config.mxid_mapping is deprecated. Please "
-                    "use saml2_config.user_mapping_provider.config.mxid_mapping instead."
-                )
-                ump_dict["config"]["mxid_mapping"] = old_mxid_mapping
-
-        # Retrieve an instance of the module's class
-        # Pass the config dictionary to the module for processing
-        (
-            self.saml2_user_mapping_provider_class,
-            self.saml2_user_mapping_provider_config,
-        ) = load_module(ump_dict, ("saml2_config", "user_mapping_provider"))
-
-        # Ensure loaded user mapping module has defined all necessary methods
-        # Note parse_config() is already checked during the call to load_module
-        required_methods = [
-            "get_saml_attributes",
-            "saml_response_to_user_attributes",
-            "get_remote_user_id",
-        ]
-        missing_methods = [
-            method
-            for method in required_methods
-            if not hasattr(self.saml2_user_mapping_provider_class, method)
-        ]
-        if missing_methods:
-            raise ConfigError(
-                "Class specified by saml2_config."
-                "user_mapping_provider.module is missing required "
-                "methods: %s" % (", ".join(missing_methods),)
-            )
-
-        # Get the desired saml auth response attributes from the module
-        saml2_config_dict = self._default_saml_config_dict(
-            *self.saml2_user_mapping_provider_class.get_saml_attributes(
-                self.saml2_user_mapping_provider_config
-            )
-        )
-        _dict_merge(
-            merge_dict=saml2_config.get("sp_config", {}), into_dict=saml2_config_dict
-        )
-
-        config_path = saml2_config.get("config_path", None)
-        if config_path is not None:
-            mod = load_python_module(config_path)
-            _dict_merge(merge_dict=mod.CONFIG, into_dict=saml2_config_dict)
-
-        import saml2.config
-
-        self.saml2_sp_config = saml2.config.SPConfig()
-        self.saml2_sp_config.load(saml2_config_dict)
-
-        # session lifetime: in milliseconds
-        self.saml2_session_lifetime = self.parse_duration(
-            saml2_config.get("saml_session_lifetime", "15m")
-        )
-
-    def _default_saml_config_dict(
-        self, required_attributes: set, optional_attributes: set
-    ):
-        """Generate a configuration dictionary with required and optional attributes that
-        will be needed to process new user registration
-
-        Args:
-            required_attributes: SAML auth response attributes that are
-                necessary to function
-            optional_attributes: SAML auth response attributes that can be used to add
-                additional information to Synapse user accounts, but are not required
-
-        Returns:
-            dict: A SAML configuration dictionary
-        """
-        import saml2
-
-        public_baseurl = self.public_baseurl
-        if public_baseurl is None:
-            raise ConfigError("saml2_config requires a public_baseurl to be set")
-
-        if self.saml2_grandfathered_mxid_source_attribute:
-            optional_attributes.add(self.saml2_grandfathered_mxid_source_attribute)
-        optional_attributes -= required_attributes
-
-        metadata_url = public_baseurl + "_synapse/client/saml2/metadata.xml"
-        response_url = public_baseurl + "_synapse/client/saml2/authn_response"
-        return {
-            "entityid": metadata_url,
-            "service": {
-                "sp": {
-                    "endpoints": {
-                        "assertion_consumer_service": [
-                            (response_url, saml2.BINDING_HTTP_POST)
-                        ]
-                    },
-                    "required_attributes": list(required_attributes),
-                    "optional_attributes": list(optional_attributes),
-                    # "name_id_format": saml2.saml.NAMEID_FORMAT_PERSISTENT,
-                }
-            },
-        }
-
-    def generate_config_section(self, config_dir_path, server_name, **kwargs):
-        return """\
-        ## Single sign-on integration ##
-
-        # The following settings can be used to make Synapse use a single sign-on
-        # provider for authentication, instead of its internal password database.
-        #
-        # You will probably also want to set the following options to `false` to
-        # disable the regular login/registration flows:
-        #   * enable_registration
-        #   * password_config.enabled
-        #
-        # You will also want to investigate the settings under the "sso" configuration
-        # section below.
-
-        # Enable SAML2 for registration and login. Uses pysaml2.
-        #
-        # At least one of `sp_config` or `config_path` must be set in this section to
-        # enable SAML login.
-        #
-        # Once SAML support is enabled, a metadata file will be exposed at
-        # https://<server>:<port>/_synapse/client/saml2/metadata.xml, which you may be able to
-        # use to configure your SAML IdP with. Alternatively, you can manually configure
-        # the IdP to use an ACS location of
-        # https://<server>:<port>/_synapse/client/saml2/authn_response.
-        #
-        saml2_config:
-          # `sp_config` is the configuration for the pysaml2 Service Provider.
-          # See pysaml2 docs for format of config.
-          #
-          # Default values will be used for the 'entityid' and 'service' settings,
-          # so it is not normally necessary to specify them unless you need to
-          # override them.
-          #
-          sp_config:
-            # Point this to the IdP's metadata. You must provide either a local
-            # file via the `local` attribute or (preferably) a URL via the
-            # `remote` attribute.
-            #
-            #metadata:
-            #  local: ["saml2/idp.xml"]
-            #  remote:
-            #    - url: https://our_idp/metadata.xml
-
-            # Allowed clock difference in seconds between the homeserver and IdP.
-            #
-            # Uncomment the below to increase the accepted time difference from 0 to 3 seconds.
-            #
-            #accepted_time_diff: 3
-
-            # By default, the user has to go to our login page first. If you'd like
-            # to allow IdP-initiated login, set 'allow_unsolicited: true' in a
-            # 'service.sp' section:
-            #
-            #service:
-            #  sp:
-            #    allow_unsolicited: true
-
-            # The examples below are just used to generate our metadata xml, and you
-            # may well not need them, depending on your setup. Alternatively you
-            # may need a whole lot more detail - see the pysaml2 docs!
-
-            #description: ["My awesome SP", "en"]
-            #name: ["Test SP", "en"]
-
-            #ui_info:
-            #  display_name:
-            #    - lang: en
-            #      text: "Display Name is the descriptive name of your service."
-            #  description:
-            #    - lang: en
-            #      text: "Description should be a short paragraph explaining the purpose of the service."
-            #  information_url:
-            #    - lang: en
-            #      text: "https://example.com/terms-of-service"
-            #  privacy_statement_url:
-            #    - lang: en
-            #      text: "https://example.com/privacy-policy"
-            #  keywords:
-            #    - lang: en
-            #      text: ["Matrix", "Element"]
-            #  logo:
-            #    - lang: en
-            #      text: "https://example.com/logo.svg"
-            #      width: "200"
-            #      height: "80"
-
-            #organization:
-            #  name: Example com
-            #  display_name:
-            #    - ["Example co", "en"]
-            #  url: "http://example.com"
-
-            #contact_person:
-            #  - given_name: Bob
-            #    sur_name: "the Sysadmin"
-            #    email_address": ["admin@example.com"]
-            #    contact_type": technical
-
-          # Instead of putting the config inline as above, you can specify a
-          # separate pysaml2 configuration file:
-          #
-          #config_path: "%(config_dir_path)s/sp_conf.py"
-
-          # The lifetime of a SAML session. This defines how long a user has to
-          # complete the authentication process, if allow_unsolicited is unset.
-          # The default is 15 minutes.
-          #
-          #saml_session_lifetime: 5m
-
-          # An external module can be provided here as a custom solution to
-          # mapping attributes returned from a saml provider onto a matrix user.
-          #
-          user_mapping_provider:
-            # The custom module's class. Uncomment to use a custom module.
-            #
-            #module: mapping_provider.SamlMappingProvider
-
-            # Custom configuration values for the module. Below options are
-            # intended for the built-in provider, they should be changed if
-            # using a custom module. This section will be passed as a Python
-            # dictionary to the module's `parse_config` method.
-            #
-            config:
-              # The SAML attribute (after mapping via the attribute maps) to use
-              # to derive the Matrix ID from. 'uid' by default.
-              #
-              # Note: This used to be configured by the
-              # saml2_config.mxid_source_attribute option. If that is still
-              # defined, its value will be used instead.
-              #
-              #mxid_source_attribute: displayName
-
-              # The mapping system to use for mapping the saml attribute onto a
-              # matrix ID.
-              #
-              # Options include:
-              #  * 'hexencode' (which maps unpermitted characters to '=xx')
-              #  * 'dotreplace' (which replaces unpermitted characters with
-              #     '.').
-              # The default is 'hexencode'.
-              #
-              # Note: This used to be configured by the
-              # saml2_config.mxid_mapping option. If that is still defined, its
-              # value will be used instead.
-              #
-              #mxid_mapping: dotreplace
-
-          # In previous versions of synapse, the mapping from SAML attribute to
-          # MXID was always calculated dynamically rather than stored in a
-          # table. For backwards- compatibility, we will look for user_ids
-          # matching such a pattern before creating a new account.
-          #
-          # This setting controls the SAML attribute which will be used for this
-          # backwards-compatibility lookup. Typically it should be 'uid', but if
-          # the attribute maps are changed, it may be necessary to change it.
-          #
-          # The default is 'uid'.
-          #
-          #grandfathered_mxid_source_attribute: upn
-
-          # It is possible to configure Synapse to only allow logins if SAML attributes
-          # match particular values. The requirements can be listed under
-          # `attribute_requirements` as shown below. All of the listed attributes must
-          # match for the login to be permitted.
-          #
-          #attribute_requirements:
-          #  - attribute: userGroup
-          #    value: "staff"
-          #  - attribute: department
-          #    value: "sales"
-
-          # If the metadata XML contains multiple IdP entities then the `idp_entityid`
-          # option must be set to the entity to redirect users to.
-          #
-          # Most deployments only have a single IdP entity and so should omit this
-          # option.
-          #
-          #idp_entityid: 'https://our_idp/entityid'
-        """ % {
-            "config_dir_path": config_dir_path
-        }
-
-
-ATTRIBUTE_REQUIREMENTS_SCHEMA = {
-    "type": "array",
-    "items": SsoAttributeRequirement.JSON_SCHEMA,
-}
-
-
-def _parse_attribute_requirements_def(
-    attribute_requirements: Any,
-) -> List[SsoAttributeRequirement]:
-    validate_config(
-        ATTRIBUTE_REQUIREMENTS_SCHEMA,
-        attribute_requirements,
-        config_path=("saml2_config", "attribute_requirements"),
-    )
-    return [SsoAttributeRequirement(**x) for x in attribute_requirements]