infrastructure/ansible/plays/services/matrix/mautrix-signal/config.yaml

# Homeserver details
# {% set config = matrix.bridge.signal %}

homeserver:
    # The address that this appservice can use to connect to the homeserver.
    address: https://synapse.{{ matrix.baseurl }}
    # The domain of the homeserver (also known as server_name, used for MXIDs, etc).
    domain: {{ matrix.baseurl }}
    # Whether or not to verify the SSL certificate of the homeserver.
    # Only applies if address starts with https://
    verify_ssl: true
    # What software is the homeserver running?
    # Standard Matrix homeservers like Synapse, Dendrite and Conduit should just use "standard" here.
    software: standard
    # Number of retries for all HTTP requests if the homeserver isn't reachable.
    http_retry_count: 4
    # The URL to push real-time bridge status to.
    # If set, the bridge will make POST requests to this URL whenever a user's Signal connection state changes.
    # The bridge will use the appservice as_token to authorize requests.
    status_endpoint:
    # Endpoint for reporting per-message status.
    message_send_checkpoint_endpoint:
    # Maximum number of simultaneous HTTP connections to the homeserver.
    connection_limit: 100
    # Whether asynchronous uploads via MSC2246 should be enabled for media.
    # Requires a media repo that supports MSC2246.
    async_media: false

# Application service host/registration related details
# Changing these values requires regeneration of the registration.
appservice:
    # The address that the homeserver can use to connect to this appservice.
    address: http://mautrix-signal:29328
    # When using https:// the TLS certificate and key files for the address.
    tls_cert: false
    tls_key: false

    # The hostname and port where this appservice should listen.
    hostname: 0.0.0.0
    port: 29328
    # The maximum body size of appservice API requests (from the homeserver) in mebibytes
    # Usually 1 is enough, but on high-traffic bridges you might need to increase this to avoid 413s
    max_body_size: 1

    # The full URI to the database. SQLite and Postgres are supported.
    # Format examples:
    #   SQLite:   sqlite:///filename.db
    #   Postgres: postgres://username:password@hostname/dbname
    database: postgres://{{ config.dbuser }}:{{ config.dbpass }}@db-bridge-signal/{{ config.dbname }}?sslmode=disable
    # Additional arguments for asyncpg.create_pool() or sqlite3.connect()
    # https://magicstack.github.io/asyncpg/current/api/index.html#asyncpg.pool.create_pool
    # https://docs.python.org/3/library/sqlite3.html#sqlite3.connect
    # For sqlite, min_size is used as the connection thread pool size and max_size is ignored.
    # Additionally, SQLite supports init_commands as an array of SQL queries to run on connect (e.g. to set PRAGMAs).
    database_opts:
        min_size: 1
        max_size: 10
    id: signal
    # Username of the appservice bot.
    bot_username: signalbot
    # Display name and avatar for bot. Set to "remove" to remove display name/avatar, leave empty
    # to leave display name/avatar as-is.
    bot_displayname: Signal bridge bot
    bot_avatar: mxc://maunium.net/wPJgTQbZOtpBFmDNkiNEMDUp

    # Whether or not to receive ephemeral events via appservice transactions.
    # Requires MSC2409 support (i.e. Synapse 1.22+).
    # You should disable bridge -> sync_with_custom_puppets when this is enabled.
    ephemeral_events: true

    # Authentication tokens for AS <-> HS communication. Autogenerated; do not modify.
    as_token: "{{ config.as_token }}"
    hs_token: "{{ config.hs_token }}"

# Prometheus telemetry config. Requires prometheus-client to be installed.
metrics:
    enabled: false
    listen_port: 8000

# Manhole config.
manhole:
    # Whether or not opening the manhole is allowed.
    enabled: false
    # The path for the unix socket.
    path: /var/tmp/mautrix-signal.manhole
    # The list of UIDs who can be added to the whitelist.
    # If empty, any UIDs can be specified in the open-manhole command.
    whitelist:
    - 0
signal:
    # Path to signald unix socket
    socket_path: /signald/signald.sock
    # Directory for temp files when sending files to Signal. This should be an
    # absolute path that signald can read. For attachments in the other direction,
    # make sure signald is configured to use an absolute path as the data directory.
    outgoing_attachment_dir: /signald/attachments
    # Directory where signald stores avatars for groups.
    avatar_dir: /signald/avatars
    # Directory where signald stores auth data. Used to delete data when logging out.
    data_dir: /signald/data
    # Whether or not unknown signald accounts should be deleted when the bridge is started.
    # When this is enabled, any UserInUse errors should be resolved by restarting the bridge.
    delete_unknown_accounts_on_start: false
    # Whether or not message attachments should be removed from disk after they're bridged.
    remove_file_after_handling: true
    # Whether or not users can register a primary device
    registration_enabled: true
    # Whether or not to enable disappearing messages in groups. If enabled, then the expiration
    # time of the messages will be determined by the first users to read the message, rather
    # than individually. If the bridge has a single user, this can be turned on safely.
    enable_disappearing_messages_in_groups: false

# Bridge config
bridge:
    # {% raw %}
    # Localpart template of MXIDs for Signal users.
    # {userid} is replaced with the UUID of the Signal user.
    username_template: "signal_{{.}}"
    # Displayname template for Signal users.
    # {displayname} is replaced with the displayname of the Signal user, which is the first
    # available variable in displayname_preference. The variables in displayname_preference
    # can also be used here directly.
    # FIXME: ContactName is not save for multi-user instances.
    displayname_template: '{{or .ProfileName .ContactName .PhoneNumber "Unknown User"}} (Signal)'
    # {% endraw %}
    autocreate_group_portal: true
    # Whether or not to create portals for all contacts on login/connect.
    autocreate_contact_portal: false
    # Whether or not to make portals of Signal groups in which joining via invite link does
    # not need to be approved by an administrator publicly joinable on Matrix.
    public_portals: false
    # Whether or not to use /sync to get read receipts and typing notifications
    # when double puppeting is enabled
    sync_with_custom_puppets: false
    # Whether or not to update the m.direct account data event when double puppeting is enabled.
    # Note that updating the m.direct event is not atomic (except with mautrix-asmux)
    # and is therefore prone to race conditions.
    sync_direct_chat_list: false
    # Allow using double puppeting from any server with a valid client .well-known file.
    double_puppet_allow_discovery: false
    # Servers to allow double puppeting from, even if double_puppet_allow_discovery is false.
    double_puppet_server_map:
        {{ matrix.baseurl }}: https://{{ matrix.baseurl }}
    login_shared_secret_map:
        {{ matrix.baseurl }}: {{ matrix.authenticator.shared_secret }}
    federate_rooms: false
    # End-to-bridge encryption support options.
    #
    # See https://docs.mau.fi/bridges/general/end-to-bridge-encryption.html for more info.
    encryption:
        # Allow encryption, work in group chat rooms with e2ee enabled
        allow: true
        # Default to encryption, force-enable encryption in all portals the bridge creates
        # This will cause the bridge bot to be in private chats for the encryption to work properly.
        default: true
        # Whether to use MSC2409/MSC3202 instead of /sync long polling for receiving encryption-related data.
        appservice: false
        # Require encryption, drop any unencrypted messages.
        require: true
        # Enable key sharing? If enabled, key requests for rooms where users are in will be fulfilled.
        # You must use a client that supports requesting keys from other users to use this feature.
        allow_key_sharing: false
        # What level of device verification should be required from users?
        #
        # Valid levels:
        #   unverified - Send keys to all device in the room.
        #   cross-signed-untrusted - Require valid cross-signing, but trust all cross-signing keys.
        #   cross-signed-tofu - Require valid cross-signing, trust cross-signing keys on first use (and reject changes).
        #   cross-signed-verified - Require valid cross-signing, plus a valid user signature from the bridge bot.
        #                           Note that creating user signatures from the bridge bot is not currently possible.
        #   verified - Require manual per-device verification
        #              (currently only possible by modifying the `trust` column in the `crypto_device` database table).
        verification_levels:
            # Minimum level for which the bridge should send keys to when bridging messages from Telegram to Matrix.
            receive: unverified
            # Minimum level that the bridge should accept for incoming Matrix messages.
            send: unverified
            # Minimum level that the bridge should require for accepting key requests.
            share: cross-signed-tofu
        # Options for Megolm room key rotation. These options allow you to
        # configure the m.room.encryption event content. See:
        # https://spec.matrix.org/v1.3/client-server-api/#mroomencryption for
        # more information about that event.
        rotation:
            # Enable custom Megolm room key rotation settings. Note that these
            # settings will only apply to rooms created after this option is
            # set.
            enable_custom: false
            # The maximum number of milliseconds a session should be used
            # before changing it. The Matrix spec recommends 604800000 (a week)
            # as the default.
            milliseconds: 604800000
            # The maximum number of messages that should be sent with a given a
            # session before changing it. The Matrix spec recommends 100 as the
            # default.
            messages: 100

    # Whether or not to explicitly set the avatar and room name for private
    # chat portal rooms. This will be implicitly enabled if encryption.default is true.
    private_chat_portal_meta: "default"
    # Whether or not the bridge should send a read receipt from the bridge bot when a message has
    # been sent to Signal. This let's you check manually whether the bridge is receiving your
    # messages.
    # Note that this is not related to Signal delivery receipts.
    delivery_receipts: true
    # Whether or not delivery errors should be reported as messages in the Matrix room.
    delivery_error_reports: true
    # Whether the bridge should send the message status as a custom com.beeper.message_send_status event.
    message_status_events: false
    # Set this to true to tell the bridge to re-send m.bridge events to all rooms on the next run.
    # This field will automatically be changed back to false after it,
    # except if the config file is not writable.
    resend_bridge_info: false
    # Interval at which to resync contacts (in seconds).
    periodic_sync: 0
    # Should leaving the room on Matrix make the user leave on Signal?
    bridge_matrix_leave: false
    # Should the bridge auto-create a group chat on Signal when a ghost is invited to a room?
    # Requires the user to have sufficient power level and double puppeting enabled.
    create_group_on_invite: true
    hacky_contact_name_mixup_detection: false

    # Provisioning API part of the web server for automated portal creation and fetching information.
    # Used by things like mautrix-manager (https://github.com/tulir/mautrix-manager).
    provisioning:
        # Whether or not the provisioning API should be enabled.
        enabled: false
        # The prefix to use in the provisioning API endpoints.
        prefix: /_matrix/provision
        # The shared secret to authorize users of the API.
        # Set to "generate" to generate and save a new token.
        shared_secret: disabled
        # Segment API key to enable analytics tracking for web server
        # endpoints. Set to null to disable.
        # Currently the only events are login start, QR code scan, and login
        # success/failure.
        segment_key:
        # Optional user_id to use when sending Segment events. If null, defaults to using mxID.
        segment_user_id:

    # The prefix for commands. Only required in non-management rooms.
    command_prefix: '!signal'

    # Messages sent upon joining a management room.
    # Markdown is supported. The defaults are listed below.
    management_room_text:
        # Sent when joining a room.
        welcome: Hello, I'm a Signal bridge bot.
        # Sent when joining a management room and the user is already logged in.
        welcome_connected: Use `help` for help.
        # Sent when joining a management room and the user is not logged in.
        welcome_unconnected: Use `help` for help or `link` to log in.
        # Optional extra text sent when joining a management room.
        additional_help: ''

    # Send each message separately (for readability in some clients)
    management_room_multiple_messages: false

    # Permissions for using the bridge.
    # Permitted values:
    #      relay - Allowed to be relayed through the bridge, no access to commands.
    #       user - Use the bridge with puppeting.
    #      admin - Use and administrate the bridge.
    # Permitted keys:
    #        * - All Matrix users
    #   domain - All users on that homeserver
    #     mxid - Specific user
    permissions:
        '*': relay
        {{ matrix.baseurl }}: user
        '@tobi:{{ matrix.baseurl }}': admin
    relay:
        # Whether relay mode should be allowed. If allowed, `!signal set-relay` can be used to turn any
        # authenticated user into a relaybot for that chat.
        enabled: false
        # The formats to use when sending messages to Signal via a relay user.
        #
        # Available variables:
        #   $sender_displayname - The display name of the sender (e.g. Example User)
        #   $sender_username    - The username (Matrix ID localpart) of the sender (e.g. exampleuser)
        #   $sender_mxid        - The Matrix ID of the sender (e.g. @exampleuser:example.com)
        #   $message            - The message content
        message_formats:
            m.text: '$sender_displayname: $message'
            m.notice: '$sender_displayname: $message'
            m.emote: '* $sender_displayname $message'
            m.file: $sender_displayname sent a file
            m.image: $sender_displayname sent an image
            m.audio: $sender_displayname sent an audio file
            m.video: $sender_displayname sent a video
            m.location: $sender_displayname sent a location
        relaybot: '@relaybot:example.com'
        # Whether or not invites from non-logged-in users should be relayed
        invite: true

    # Format for generating URLs from location messages for sending to Signal
    # Google Maps: 'https://www.google.com/maps/place/{lat},{long}'
    # OpenStreetMap: 'https://www.openstreetmap.org/?mlat={lat}&mlon={long}'
    location_format: https://www.google.com/maps/place/{lat},{long}

logging:
    min_level: debug
    writers:
    - type: stdout
      format: json