sample_config.yaml

#
# 'false' by default: uncomment the following to enable it (and specify a
# url_preview_ip_range_blacklist blacklist).
#
#url_preview_enabled: true

# List of IP address CIDR ranges that the URL preview spider is denied
# from accessing.  There are no defaults: you must explicitly
# specify a list for URL previewing to work.  You should specify any
# internal services in your network that you do not want synapse to try
# to connect to, otherwise anyone in any Matrix room could cause your
# synapse to issue arbitrary GET requests to your internal services,
# causing serious security issues.
#
# (0.0.0.0 and :: are always blacklisted, whether or not they are explicitly
# listed here, since they correspond to unroutable addresses.)
#
# This must be specified if url_preview_enabled is set. It is recommended that
# you uncomment the following list as a starting point.
#
#url_preview_ip_range_blacklist:
#  - '127.0.0.0/8'
#  - '10.0.0.0/8'
#  - '172.16.0.0/12'
#  - '192.168.0.0/16'
#  - '100.64.0.0/10'
#  - '192.0.0.0/24'
#  - '169.254.0.0/16'
#  - '192.88.99.0/24'
#  - '198.18.0.0/15'
#  - '192.0.2.0/24'
#  - '198.51.100.0/24'
#  - '203.0.113.0/24'
#  - '224.0.0.0/4'
#  - '::1/128'
#  - 'fe80::/10'
#  - 'fc00::/7'
#  - '2001:db8::/32'
#  - 'ff00::/8'
#  - 'fec0::/10'

# List of IP address CIDR ranges that the URL preview spider is allowed
# to access even if they are specified in url_preview_ip_range_blacklist.
# This is useful for specifying exceptions to wide-ranging blacklisted
# target IP ranges - e.g. for enabling URL previews for a specific private
# website only visible in your network.
#
#url_preview_ip_range_whitelist:
#   - '192.168.1.1'

# Optional list of URL matches that the URL preview spider is
# denied from accessing.  You should use url_preview_ip_range_blacklist
# in preference to this, otherwise someone could define a public DNS
# entry that points to a private IP address and circumvent the blacklist.
# This is more useful if you know there is an entire shape of URL that
# you know that will never want synapse to try to spider.
#
# Each list entry is a dictionary of url component attributes as returned
# by urlparse.urlsplit as applied to the absolute form of the URL.  See
# https://docs.python.org/2/library/urlparse.html#urlparse.urlsplit
# The values of the dictionary are treated as an filename match pattern
# applied to that component of URLs, unless they start with a ^ in which
# case they are treated as a regular expression match.  If all the
# specified component matches for a given list item succeed, the URL is
# blacklisted.
#
#url_preview_url_blacklist:
#  # blacklist any URL with a username in its URI
#  - username: '*'
#
#  # blacklist all *.google.com URLs
#  - netloc: 'google.com'
#  - netloc: '*.google.com'
#
#  # blacklist all plain HTTP URLs
#  - scheme: 'http'
#
#  # blacklist http(s)://www.acme.com/foo
#  - netloc: 'www.acme.com'
#    path: '/foo'
#
#  # blacklist any URL with a literal IPv4 address
#  - netloc: '^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$'

# The largest allowed URL preview spidering size in bytes
#
#max_spider_size: 10M

# A list of values for the Accept-Language HTTP header used when
# downloading webpages during URL preview generation. This allows
# Synapse to specify the preferred languages that URL previews should
# be in when communicating with remote servers.
#
# Each value is a IETF language tag; a 2-3 letter identifier for a
# language, optionally followed by subtags separated by '-', specifying
# a country or region variant.
#
# Multiple values can be provided, and a weight can be added to each by
# using quality value syntax (;q=). '*' translates to any language.
#
# Defaults to "en".
#
# Example:
#
# url_preview_accept_language:
#   - en-UK
#   - en-US;q=0.9
#   - fr;q=0.8
#   - *;q=0.7
#
url_preview_accept_language:
#   - en


## Captcha ##
# See docs/CAPTCHA_SETUP.md for full details of configuring this.

# This homeserver's ReCAPTCHA public key. Must be specified if
# enable_registration_captcha is enabled.
#
#recaptcha_public_key: "YOUR_PUBLIC_KEY"

# This homeserver's ReCAPTCHA private key. Must be specified if
# enable_registration_captcha is enabled.
#
#recaptcha_private_key: "YOUR_PRIVATE_KEY"

# Uncomment to enable ReCaptcha checks when registering, preventing signup
# unless a captcha is answered. Requires a valid ReCaptcha
# public/private key. Defaults to 'false'.
#
#enable_registration_captcha: true

# The API endpoint to use for verifying m.login.recaptcha responses.
# Defaults to "https://www.recaptcha.net/recaptcha/api/siteverify".
#
#recaptcha_siteverify_api: "https://my.recaptcha.site"


## TURN ##

# The public URIs of the TURN server to give to clients
#
#turn_uris: []

# The shared secret used to compute passwords for the TURN server
#
#turn_shared_secret: "YOUR_SHARED_SECRET"

# The Username and password if the TURN server needs them and
# does not use a token
#
#turn_username: "TURNSERVER_USERNAME"
#turn_password: "TURNSERVER_PASSWORD"

# How long generated TURN credentials last
#
#turn_user_lifetime: 1h

# Whether guests should be allowed to use the TURN server.
# This defaults to True, otherwise VoIP will be unreliable for guests.
# However, it does introduce a slight security risk as it allows users to
# connect to arbitrary endpoints without having first signed up for a
# valid account (e.g. by passing a CAPTCHA).
#
#turn_allow_guests: true


## Registration ##
#
# Registration can be rate-limited using the parameters in the "Ratelimiting"
# section of this file.

# Enable registration for new users.
#
#enable_registration: false

# Optional account validity configuration. This allows for accounts to be denied
# any request after a given period.
#
# Once this feature is enabled, Synapse will look for registered users without an
# expiration date at startup and will add one to every account it found using the
# current settings at that time.
# This means that, if a validity period is set, and Synapse is restarted (it will
# then derive an expiration date from the current validity period), and some time
# after that the validity period changes and Synapse is restarted, the users'
# expiration dates won't be updated unless their account is manually renewed. This
# date will be randomly selected within a range [now + period - d ; now + period],
# where d is equal to 10% of the validity period.
#
account_validity:
  # The account validity feature is disabled by default. Uncomment the
  # following line to enable it.
  #
  #enabled: true

  # The period after which an account is valid after its registration. When
  # renewing the account, its validity period will be extended by this amount
  # of time. This parameter is required when using the account validity
  # feature.
  #
  #period: 6w

  # The amount of time before an account's expiry date at which Synapse will
  # send an email to the account's email address with a renewal link. By
  # default, no such emails are sent.
  #
  # If you enable this setting, you will also need to fill out the 'email' and
  # 'public_baseurl' configuration sections.
  #
  #renew_at: 1w

  # The subject of the email sent out with the renewal link. '%(app)s' can be
  # used as a placeholder for the 'app_name' parameter from the 'email'
  # section.
  #
  # Note that the placeholder must be written '%(app)s', including the
  # trailing 's'.
  #
  # If this is not set, a default value is used.
  #
  #renew_email_subject: "Renew your %(app)s account"

  # Directory in which Synapse will try to find templates for the HTML files to
  # serve to the user when trying to renew an account. If not set, default
  # templates from within the Synapse package will be used.
  #
  #template_dir: "res/templates"

  # File within 'template_dir' giving the HTML to be displayed to the user after
  # they successfully renewed their account. If not set, default text is used.
  #
  #account_renewed_html_path: "account_renewed.html"

  # File within 'template_dir' giving the HTML to be displayed when the user
  # tries to renew an account with an invalid renewal token. If not set,
  # default text is used.
  #
  #invalid_token_html_path: "invalid_token.html"

# Time that a user's session remains valid for, after they log in.
#
# Note that this is not currently compatible with guest logins.
#
# Note also that this is calculated at login time: changes are not applied
# retrospectively to users who have already logged in.
#
# By default, this is infinite.
#
#session_lifetime: 24h

# The user must provide all of the below types of 3PID when registering.
#
#registrations_require_3pid:
#  - email
#  - msisdn

# Explicitly disable asking for MSISDNs from the registration
# flow (overrides registrations_require_3pid if MSISDNs are set as required)
#
#disable_msisdn_registration: true

# Mandate that users are only allowed to associate certain formats of
# 3PIDs with accounts on this server.
#
#allowed_local_3pids:
#  - medium: email
#    pattern: '^[^@]+@matrix\.org$'
#  - medium: email
#    pattern: '^[^@]+@vector\.im$'
#  - medium: msisdn
#    pattern: '\+44'

# Enable 3PIDs lookup requests to identity servers from this server.
#
#enable_3pid_lookup: true

# If set, allows registration of standard or admin accounts by anyone who
# has the shared secret, even if registration is otherwise disabled.
#
#registration_shared_secret: <PRIVATE STRING>

# Set the number of bcrypt rounds used to generate password hash.
# Larger numbers increase the work factor needed to generate the hash.
# The default number is 12 (which equates to 2^12 rounds).
# N.B. that increasing this will exponentially increase the time required
# to register or login - e.g. 24 => 2^24 rounds which will take >20 mins.
#
#bcrypt_rounds: 12

# Allows users to register as guests without a password/email/etc, and
# participate in rooms hosted on this server which have been made
# accessible to anonymous users.
#
#allow_guest_access: false

# The identity server which we suggest that clients should use when users log
# in on this server.
#
# (By default, no suggestion is made, so it is left up to the client.
# This setting is ignored unless public_baseurl is also set.)
#
#default_identity_server: https://matrix.org

# Handle threepid (email/phone etc) registration and password resets through a set of
# *trusted* identity servers. Note that this allows the configured identity server to
# reset passwords for accounts!
#
# Be aware that if `email` is not set, and SMTP options have not been
# configured in the email config block, registration and user password resets via
# email will be globally disabled.
#
# Additionally, if `msisdn` is not set, registration and password resets via msisdn
# will be disabled regardless, and users will not be able to associate an msisdn
# identifier to their account. This is due to Synapse currently not supporting
# any method of sending SMS messages on its own.
#
# To enable using an identity server for operations regarding a particular third-party
# identifier type, set the value to the URL of that identity server as shown in the
# examples below.
#
# Servers handling the these requests must answer the `/requestToken` endpoints defined
# by the Matrix Identity Service API specification:
# https://matrix.org/docs/spec/identity_service/latest
#
# If a delegate is specified, the config option public_baseurl must also be filled out.
#
account_threepid_delegates:
    #email: https://example.com     # Delegate email sending to example.com
    #msisdn: http://localhost:8090  # Delegate SMS sending to this local process

# Whether users are allowed to change their displayname after it has
# been initially set. Useful when provisioning users based on the
# contents of a third-party directory.
#
# Does not apply to server administrators. Defaults to 'true'
#
#enable_set_displayname: false

# Whether users are allowed to change their avatar after it has been
# initially set. Useful when provisioning users based on the contents
# of a third-party directory.
#
# Does not apply to server administrators. Defaults to 'true'
#
#enable_set_avatar_url: false

# Whether users can change the 3PIDs associated with their accounts
# (email address and msisdn).
#
# Defaults to 'true'
#
#enable_3pid_changes: false

# Users who register on this homeserver will automatically be joined
# to these rooms.
#
# By default, any room aliases included in this list will be created
# as a publicly joinable room when the first user registers for the
# homeserver. This behaviour can be customised with the settings below.
# If the room already exists, make certain it is a publicly joinable
# room. The join rule of the room must be set to 'public'.
#
#auto_join_rooms:
#  - "#example:example.com"

# Where auto_join_rooms are specified, setting this flag ensures that the
# the rooms exist by creating them when the first user on the
# homeserver registers.
#
# By default the auto-created rooms are publicly joinable from any federated
# server. Use the autocreate_auto_join_rooms_federated and
# autocreate_auto_join_room_preset settings below to customise this behaviour.
#
# Setting to false means that if the rooms are not manually created,
# users cannot be auto-joined since they do not exist.
#
# Defaults to true. Uncomment the following line to disable automatically
# creating auto-join rooms.
#
#autocreate_auto_join_rooms: false

# Whether the auto_join_rooms that are auto-created are available via
# federation. Only has an effect if autocreate_auto_join_rooms is true.
#
# Note that whether a room is federated cannot be modified after
# creation.
#
# Defaults to true: the room will be joinable from other servers.
# Uncomment the following to prevent users from other homeservers from
# joining these rooms.
#
#autocreate_auto_join_rooms_federated: false

# The room preset to use when auto-creating one of auto_join_rooms. Only has an
# effect if autocreate_auto_join_rooms is true.
#
# This can be one of "public_chat", "private_chat", or "trusted_private_chat".
# If a value of "private_chat" or "trusted_private_chat" is used then
# auto_join_mxid_localpart must also be configured.
#
# Defaults to "public_chat", meaning that the room is joinable by anyone, including
# federated servers if autocreate_auto_join_rooms_federated is true (the default).
# Uncomment the following to require an invitation to join these rooms.
#
#autocreate_auto_join_room_preset: private_chat

# The local part of the user id which is used to create auto_join_rooms if
# autocreate_auto_join_rooms is true. If this is not provided then the
# initial user account that registers will be used to create the rooms.
#
# The user id is also used to invite new users to any auto-join rooms which
# are set to invite-only.
#
# It *must* be configured if autocreate_auto_join_room_preset is set to
# "private_chat" or "trusted_private_chat".
#
# Note that this must be specified in order for new users to be correctly
# invited to any auto-join rooms which have been set to invite-only (either
# at the time of creation or subsequently).
#
# Note that, if the room already exists, this user must be joined and
# have the appropriate permissions to invite new members.
#
#auto_join_mxid_localpart: system

# When auto_join_rooms is specified, setting this flag to false prevents
# guest accounts from being automatically joined to the rooms.
#
# Defaults to true.
#
#auto_join_rooms_for_guests: false


## Metrics ###

# Enable collection and rendering of performance metrics
#
#enable_metrics: false

# Enable sentry integration
# NOTE: While attempts are made to ensure that the logs don't contain
# any sensitive information, this cannot be guaranteed. By enabling
# this option the sentry server may therefore receive sensitive
# information, and it in turn may then diseminate sensitive information
# through insecure notification channels if so configured.
#
#sentry:
#    dsn: "..."

# Flags to enable Prometheus metrics which are not suitable to be
# enabled by default, either for performance reasons or limited use.
#
metrics_flags:
    # Publish synapse_federation_known_servers, a gauge of the number of
    # servers this homeserver knows about, including itself. May cause
    # performance problems on large homeservers.
    #
    #known_servers: true

# Whether or not to report anonymized homeserver usage statistics.
#
#report_stats: true|false

# The endpoint to report the anonymized homeserver usage statistics to.
# Defaults to https://matrix.org/report-usage-stats/push
#
#report_stats_endpoint: https://example.com/report-usage-stats/push


## API Configuration ##

# Controls for the state that is shared with users who receive an invite
# to a room
#
room_prejoin_state:
   # By default, the following state event types are shared with users who
   # receive invites to the room:
   #
   # - m.room.join_rules
   # - m.room.canonical_alias
   # - m.room.avatar
   # - m.room.encryption
   # - m.room.name
   #
   # Uncomment the following to disable these defaults (so that only the event
   # types listed in 'additional_event_types' are shared). Defaults to 'false'.
   #
   #disable_default_event_types: true

   # Additional state event types to share with users when they are invited
   # to a room.
   #
   # By default, this list is empty (so only the default event types are shared).
   #
   #additional_event_types:
   #  - org.example.custom.event.type


# A list of application service config files to use
#
#app_service_config_files:
#  - app_service_1.yaml
#  - app_service_2.yaml

# Uncomment to enable tracking of application service IP addresses. Implicitly
# enables MAU tracking for application service users.
#
#track_appservice_user_ips: true


# a secret which is used to sign access tokens. If none is specified,
# the registration_shared_secret is used, if one is given; otherwise,
# a secret key is derived from the signing key.
#
#macaroon_secret_key: <PRIVATE STRING>

# a secret which is used to calculate HMACs for form values, to stop
# falsification of values. Must be specified for the User Consent
# forms to work.
#
#form_secret: <PRIVATE STRING>

## Signing Keys ##

# Path to the signing key to sign messages with
#
signing_key_path: "CONFDIR/SERVERNAME.signing.key"

# The keys that the server used to sign messages with but won't use
# to sign new messages.
#
old_signing_keys:
  # For each key, `key` should be the base64-encoded public key, and
  # `expired_ts`should be the time (in milliseconds since the unix epoch) that
  # it was last used.
  #
  # It is possible to build an entry from an old signing.key file using the
  # `export_signing_key` script which is provided with synapse.
  #
  # For example:
  #
  #"ed25519:id": { key: "base64string", expired_ts: 123456789123 }

# How long key response published by this server is valid for.
# Used to set the valid_until_ts in /key/v2 APIs.
# Determines how quickly servers will query to check which keys
# are still valid.
#
#key_refresh_interval: 1d

# The trusted servers to download signing keys from.
#
# When we need to fetch a signing key, each server is tried in parallel.
#
# Normally, the connection to the key server is validated via TLS certificates.
# Additional security can be provided by configuring a `verify key`, which
# will make synapse check that the response is signed by that key.
#
# This setting supercedes an older setting named `perspectives`. The old format
# is still supported for backwards-compatibility, but it is deprecated.
#
# 'trusted_key_servers' defaults to matrix.org, but using it will generate a
# warning on start-up. To suppress this warning, set
# 'suppress_key_server_warning' to true.
#
# Options for each entry in the list include:
#
#    server_name: the name of the server. required.
#
#    verify_keys: an optional map from key id to base64-encoded public key.
#       If specified, we will check that the response is signed by at least
#       one of the given keys.
#
#    accept_keys_insecurely: a boolean. Normally, if `verify_keys` is unset,
#       and federation_verify_certificates is not `true`, synapse will refuse
#       to start, because this would allow anyone who can spoof DNS responses
#       to masquerade as the trusted key server. If you know what you are doing
#       and are sure that your network environment provides a secure connection
#       to the key server, you can set this to `true` to override this
#       behaviour.
#
# An example configuration might look like:
#
#trusted_key_servers:
#  - server_name: "my_trusted_server.example.com"
#    verify_keys:
#      "ed25519:auto": "abcdefghijklmnopqrstuvwxyzabcdefghijklmopqr"
#  - server_name: "my_other_trusted_server.example.com"
#
trusted_key_servers:
  - server_name: "matrix.org"

# Uncomment the following to disable the warning that is emitted when the
# trusted_key_servers include 'matrix.org'. See above.
#
#suppress_key_server_warning: true

# The signing keys to use when acting as a trusted key server. If not specified
# defaults to the server signing key.
#
# Can contain multiple keys, one per line.
#
#key_server_signing_keys_path: "key_server_signing_keys.key"


## 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: "CONFDIR/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'


# List of OpenID Connect (OIDC) / OAuth 2.0 identity providers, for registration
# and login.
#
# Options for each entry include:
#
#   idp_id: a unique identifier for this identity provider. Used internally
#       by Synapse; should be a single word such as 'github'.
#
#       Note that, if this is changed, users authenticating via that provider
#       will no longer be recognised as the same user!
#
#       (Use "oidc" here if you are migrating from an old "oidc_config"
#       configuration.)
#
#   idp_name: A user-facing name for this identity provider, which is used to
#       offer the user a choice of login mechanisms.
#
#   idp_icon: An optional icon for this identity provider, which is presented
#       by clients and Synapse's own IdP picker page. If given, must be an
#       MXC URI of the format mxc://<server-name>/<media-id>. (An easy way to
#       obtain such an MXC URI is to upload an image to an (unencrypted) room
#       and then copy the "url" from the source of the event.)
#
#   idp_brand: An optional brand for this identity provider, allowing clients
#       to style the login flow according to the identity provider in question.
#       See the spec for possible options here.
#
#   discover: set to 'false' to disable the use of the OIDC discovery mechanism
#       to discover endpoints. Defaults to true.
#
#   issuer: Required. The OIDC issuer. Used to validate tokens and (if discovery
#       is enabled) to discover the provider's endpoints.
#
#   client_id: Required. oauth2 client id to use.
#
#   client_secret: oauth2 client secret to use. May be omitted if
#        client_secret_jwt_key is given, or if client_auth_method is 'none'.
#
#   client_secret_jwt_key: Alternative to client_secret: details of a key used
#      to create a JSON Web Token to be used as an OAuth2 client secret. If
#      given, must be a dictionary with the following properties:
#
#          key: a pem-encoded signing key. Must be a suitable key for the
#              algorithm specified. Required unless 'key_file' is given.
#
#          key_file: the path to file containing a pem-encoded signing key file.
#              Required unless 'key' is given.
#
#          jwt_header: a dictionary giving properties to include in the JWT
#              header. Must include the key 'alg', giving the algorithm used to
#              sign the JWT, such as "ES256", using the JWA identifiers in
#              RFC7518.
#
#          jwt_payload: an optional dictionary giving properties to include in
#              the JWT payload. Normally this should include an 'iss' key.
#
#   client_auth_method: auth method to use when exchanging the token. Valid
#       values are 'client_secret_basic' (default), 'client_secret_post' and
#       'none'.
#
#   scopes: list of scopes to request. This should normally include the "openid"
#       scope. Defaults to ["openid"].
#
#   authorization_endpoint: the oauth2 authorization endpoint. Required if
#       provider discovery is disabled.
#
#   token_endpoint: the oauth2 token endpoint. Required if provider discovery is
#       disabled.
#
#   userinfo_endpoint: the OIDC userinfo endpoint. Required if discovery is
#       disabled and the 'openid' scope is not requested.
#
#   jwks_uri: URI where to fetch the JWKS. Required if discovery is disabled and
#       the 'openid' scope is used.
#
#   skip_verification: set to 'true' to skip metadata verification. Use this if
#       you are connecting to a provider that is not OpenID Connect compliant.
#       Defaults to false. Avoid this in production.
#
#   user_profile_method: Whether to fetch the user profile from the userinfo
#       endpoint. Valid values are: 'auto' or 'userinfo_endpoint'.
#
#       Defaults to 'auto', which fetches the userinfo endpoint if 'openid' is
#       included in 'scopes'. Set to 'userinfo_endpoint' to always fetch the
#       userinfo endpoint.
#
#   allow_existing_users: set to 'true' to allow a user logging in via OIDC to
#       match a pre-existing account instead of failing. This could be used if
#       switching from password logins to OIDC. Defaults to false.
#
#   user_mapping_provider: Configuration for how attributes returned from a OIDC
#       provider are mapped onto a matrix user. This setting has the following
#       sub-properties:
#
#       module: The class name of a custom mapping module. Default is
#           'synapse.handlers.oidc_handler.JinjaOidcMappingProvider'.
#           See https://github.com/matrix-org/synapse/blob/master/docs/sso_mapping_providers.md#openid-mapping-providers
#           for information on implementing a custom mapping provider.
#
#       config: Configuration for the mapping provider module. This section will
#           be passed as a Python dictionary to the user mapping provider
#           module's `parse_config` method.
#
#           For the default provider, the following settings are available:
#
#             subject_claim: name of the claim containing a unique identifier
#                 for the user. Defaults to 'sub', which OpenID Connect
#                 compliant providers should provide.
#
#             localpart_template: Jinja2 template for the localpart of the MXID.
#                 If this is not set, the user will be prompted to choose their
#                 own username (see 'sso_auth_account_details.html' in the 'sso'
#                 section of this file).
#
#             display_name_template: Jinja2 template for the display name to set
#                 on first login. If unset, no displayname will be set.
#
#             email_template: Jinja2 template for the email address of the user.
#                 If unset, no email address will be added to the account.
#
#             extra_attributes: a map of Jinja2 templates for extra attributes
#                 to send back to the client during login.
#                 Note that these are non-standard and clients will ignore them
#                 without modifications.
#
#           When rendering, the Jinja2 templates are given a 'user' variable,
#           which is set to the claims returned by the UserInfo Endpoint and/or
#           in the ID Token.
#
#   It is possible to configure Synapse to only allow logins if certain attributes
#   match particular values in the OIDC userinfo. The requirements can be listed under
#   `attribute_requirements` as shown below. All of the listed attributes must
#   match for the login to be permitted. Additional attributes can be added to
#   userinfo by expanding the `scopes` section of the OIDC config to retrieve
#   additional information from the OIDC provider.
#
#   If the OIDC claim is a list, then the attribute must match any value in the list.
#   Otherwise, it must exactly match the value of the claim. Using the example
#   below, the `family_name` claim MUST be "Stephensson", but the `groups`
#   claim MUST contain "admin".
#
#   attribute_requirements:
#     - attribute: family_name
#       value: "Stephensson"
#     - attribute: groups
#       value: "admin"
#
# See https://github.com/matrix-org/synapse/blob/master/docs/openid.md
# for information on how to configure these options.
#
# For backwards compatibility, it is also possible to configure a single OIDC
# provider via an 'oidc_config' setting. This is now deprecated and admins are
# advised to migrate to the 'oidc_providers' format. (When doing that migration,
# use 'oidc' for the idp_id to ensure that existing users continue to be
# recognised.)
#
oidc_providers:
  # Generic example
  #
  #- idp_id: my_idp
  #  idp_name: "My OpenID provider"
  #  idp_icon: "mxc://example.com/mediaid"
  #  discover: false
  #  issuer: "https://accounts.example.com/"
  #  client_id: "provided-by-your-issuer"
  #  client_secret: "provided-by-your-issuer"
  #  client_auth_method: client_secret_post
  #  scopes: ["openid", "profile"]
  #  authorization_endpoint: "https://accounts.example.com/oauth2/auth"
  #  token_endpoint: "https://accounts.example.com/oauth2/token"
  #  userinfo_endpoint: "https://accounts.example.com/userinfo"
  #  jwks_uri: "https://accounts.example.com/.well-known/jwks.json"
  #  skip_verification: true
  #  user_mapping_provider:
  #    config:
  #      subject_claim: "id"
  #      localpart_template: "{{ user.login }}"
  #      display_name_template: "{{ user.name }}"
  #      email_template: "{{ user.email }}"
  #  attribute_requirements:
  #    - attribute: userGroup
  #      value: "synapseUsers"


# Enable Central Authentication Service (CAS) for registration and login.
#
cas_config:
  # Uncomment the following to enable authorization against a CAS server.
  # Defaults to false.
  #
  #enabled: true

  # The URL of the CAS authorization endpoint.
  #
  #server_url: "https://cas-server.com"

  # The attribute of the CAS response to use as the display name.
  #
  # If unset, no displayname will be set.
  #
  #displayname_attribute: name

  # It is possible to configure Synapse to only allow logins if CAS attributes
  # match particular values. All of the keys in the mapping below must exist
  # and the values must match the given value. Alternately if the given value
  # is None then any value is allowed (the attribute just must exist).
  # All of the listed attributes must match for the login to be permitted.
  #
  #required_attributes:
  #  userGroup: "staff"
  #  department: None


# Additional settings to use with single-sign on systems such as OpenID Connect,
# SAML2 and CAS.