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# Matrix Facebook Bridge
Install the matrix bridge for facebook:
This role is part of my ansible roles. It is made to interact with other roles that are listed here, and require some variables.
## Role required:
- postgre (TODO: ADD LINK HERE)
## Variable required:
```
ansible_managed: str, msg indicating a file managed by ansible
matrix_server_name: the matrix server name
matrix_bridge_facebook_postgre_user_pwd: **SECRET** pwd for connecting to the postgre db
matrix_bridge_facebook_integration_manager_shared_secret: **SECRET** pwd for mautrix-manager. TODO: remove it
matrix_bridge_facebook_as_token: **SECRET** token generated automatically by the bridge (should be handle better at some point...)
matrix_bridge_facebook_hs_token: **SECRET** token generated automatically by the bridge (should be handle better at some point...)
matrix_bridge_facebook_allowed_external_user: list of external users allow to use the bridge
matrix_bridge_facebook_admins: list of admins
```
## Add role to you ansible playbook:
To add this role to your project, you can use git submodules:
```
git submodule add ssh://git@gitea.auro.re:2222/Pains-Perdus/matrix-bridge-facebook.git roles/matrix-bridge-facebook
git submodule init
```
## Copyright
Copyright 2021 Jean-Marie Mineau <histausse@protonmail.com>

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# TODO
- remove `matrix_bridge_facebook_integration_manager_shared_secret`
- Setup prometheus somehow (maybe not in the role)
- Add link to postgres role
- Move registration files to a registration folder
- Use local bot avatar
- Better management of `matrix_bridge_facebook_as_token` and `matrix_bridge_facebook_hs_token`

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---
- name: Restart the facebook bridge
systemd:
name: bridge_facebook
state: restarted

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---
- name: Setup postgres
include_role:
name: postgre
vars:
postgres_users:
- name: bridge_facebook_user
password: "{{ matrix_bridge_facebook_postgre_user_pwd }}"
databases:
- name: bridge_facebook
owner: bridge_facebook_user
local: C
template: template0
no_log: true
- name: Install dependencies
apt:
name:
- python3
- python3-virtualenv
- python3-pip
state: latest
update_cache: true
register: apt_result
retries: 3
until: apt_result is succeeded
- name: Create the mautrix-facebook user
user:
name: mautrix-facebook
home: /opt/mautrix-facebook
password_lock: yes
system: yes
- name: Install bridge
become: yes
become_user: mautrix-facebook
pip:
name: mautrix-facebook[animated_stickers]
virtualenv: /opt/mautrix-facebook
virtualenv_command: virtualenv
virtualenv_python: /usr/bin/python3
- name: Configure the bridge
template:
src: config.yaml
dest: /opt/mautrix-facebook/config.yaml
owner: mautrix-facebook
group: nogroup
mode: '0600'
notify: Restart the facebook bridge
no_log: true
- name: Generate facebook-registration.yaml
become: yes
become_user: mautrix-facebook
shell:
cmd: "/opt/mautrix-facebook/bin/python -m mautrix_facebook -g"
chdir: /opt/mautrix-facebook
creates: /opt/mautrix-facebook/registration.yaml
notify: Restart synapse
no_log: true
- name: Copy config for synapse
file:
src: /opt/mautrix-facebook/registration.yaml
dest: /etc/matrix-synapse/facebook-registration.yaml
state: link
- name: Ensure the log directory exists
file:
path: /var/log/bridge_facebook
state: directory
group: nogroup
owner: mautrix-facebook
mode: u=rwx,g=rx,o=
- name: Copy the daemon configuration
template:
src: bridge_facebook.service
dest: /etc/systemd/system/bridge_facebook.service
notify: Restart the facebook bridge
- name: Enable the daemon
systemd:
name: bridge_facebook
state: started
enabled: yes

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{{ ansible_managed | comment }}
[Unit]
Description=mautrix-facebook bridge
[Service]
WorkingDirectory=~
ExecStart=/opt/mautrix-facebook/bin/python -m mautrix_facebook
User=mautrix-facebook
[Install]
WantedBy=multi-user.target

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{{ ansible_managed | comment }}
# Homeserver details
homeserver:
# The address that this appservice can use to connect to the homeserver.
address: "https://{{ matrix_server_name }}"
# The domain of the homeserver (for MXIDs, etc).
domain: "{{ matrix_server_name }}"
# Whether or not to verify the SSL certificate of the homeserver.
# Only applies if address starts with https://
verify_ssl: true
# Whether or not the homeserver supports asmux-specific endpoints,
# such as /_matrix/client/unstable/net.maunium.asmux/dms for atomically
# updating m.direct.
asmux: false
# 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 Facebook MQTT connection state changes.
# The bridge will use the appservice as_token to authorize requests.
status_endpoint:
# 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://localhost:29319
# The hostname and port where this appservice should listen.
hostname: localhost
port: 29319
# 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. Only Postgres is currently supported.
database: postgres://bridge_facebook_user:{{ matrix_bridge_facebook_postgre_user_pwd }}@localhost/bridge_facebook
# Additional arguments for asyncpg.create_pool()
# https://magicstack.github.io/asyncpg/current/api/index.html#asyncpg.pool.create_pool
database_opts:
min_size: 5
max_size: 10
# Public part of web server for out-of-Matrix interaction with the bridge.
public:
# Whether or not the public-facing endpoints should be enabled.
enabled: false
# The prefix to use in the public-facing endpoints.
prefix: /public
# The base URL where the public-facing endpoints are available. The prefix is not added
# implicitly.
external:
# Shared secret for integration managers such as mautrix-manager.
# If set to "generate", a random string will be generated on the next startup.
# If null, integration manager access to the API will not be possible.
shared_secret: {{ matrix_bridge_facebook_integration_manager_shared_secret }}
# Allow logging in within Matrix. If false, users can only log in using the web interface.
allow_matrix_login: true
# The unique ID of this appservice.
id: facebook
# Username of the appservice bot.
bot_username: facebookbot
# 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: Facebook bridge bot
bot_avatar: mxc://maunium.net/ygtkteZsXnGJLJHRchUwYWak
# Community ID for bridged users (changes registration file) and rooms.
# Must be created manually. Example: "+facebook:example.com"
community_id:
# 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: false
# Authentication tokens for AS <-> HS communication. Autogenerated; do not modify.
as_token: {{ matrix_bridge_facebook_as_token }}
hs_token: {{ matrix_bridge_facebook_hs_token }}
# Prometheus telemetry config. Requires prometheus-client to be installed.
metrics:
enabled: false
listen_port: 8000
# Bridge config
bridge:
# Localpart template of MXIDs for Facebook users.
# {userid} is replaced with the user ID of the Facebook user.
username_template: facebook_{userid}
# Localpart template for per-user room grouping community IDs.
# The bridge will create these communities and add all of the specific user's portals to the community.
# {localpart} is the MXID localpart and {server} is the MXID server part of the user.
# (Note that, by default, non-admins might not have your homeserver's permission to create
# communities. You should set `enable_group_creation: true` in homeserver.yaml to fix this.)
# `facebook_{localpart}={server}` is a good value.
community_template: facebook_{localpart}={server}
# Displayname template for Facebook users.
# {displayname} is replaced with the display name of the Facebook user
# as defined below in displayname_preference.
# Keys available for displayname_preference are also available here.
displayname_template: '{displayname} (FB)'
# Available keys:
# "name" (full name)
# "first_name"
# "last_name"
# "nickname"
# "own_nickname" (user-specific!)
displayname_preference:
- name
- first_name
# The prefix for commands. Only required in non-management rooms.
command_prefix: '!fb'
# Number of chats to sync (and create portals for) on startup/login.
# Set 0 to disable automatic syncing.
initial_chat_sync: 20
# Whether or not the Facebook users of logged in Matrix users should be
# invited to private chats when the user sends a message from another client.
invite_own_puppet_to_pm: false
# Whether or not to use /sync to get presence, read receipts and typing notifications
# when double puppeting is enabled
sync_with_custom_puppets: true
# 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
# Servers to always allow double puppeting from
double_puppet_server_map:
# Allow using double puppeting from any server with a valid client .well-known file.
double_puppet_allow_discovery: false
# Shared secrets for https://github.com/devture/matrix-synapse-shared-secret-auth
#
# If set, custom puppets will be enabled automatically for local users
# instead of users having to find an access token and run `login-matrix`
# manually.
# If using this for other servers than the bridge's server,
# you must also set the URL in the double_puppet_server_map.
login_shared_secret_map:
# Whether or not to bridge presence in both directions. Facebook allows users not to broadcast
# presence, but then it won't send other users' presence to the client.
presence: true
# Whether or not to update avatars when syncing all contacts at startup.
update_avatar_initial_sync: true
# End-to-bridge encryption support options. These require matrix-nio to be installed with pip
# and login_shared_secret to be configured in order to get a device for the bridge bot.
#
# Additionally, https://github.com/matrix-org/synapse/pull/5758 is required if using a normal
# application service.
encryption:
# Allow encryption, work in group chat rooms with e2ee enabled
allow: false
# 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: false
# Options for automatic key sharing.
key_sharing:
# 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: false
# Require the requesting device to have a valid cross-signing signature?
# This doesn't require that the bridge has verified the device, only that the user has verified it.
# Not yet implemented.
require_cross_signing: false
# Require devices to be verified by the bridge?
# Verification by the bridge is not yet implemented.
require_verification: true
# Whether or not the bridge should send a read receipt from the bridge bot when a message has
# been sent to Facebook.
delivery_receipts: false
# Whether to allow inviting arbitrary mxids to portal rooms
allow_invites: false
# Settings for backfilling messages from Facebook.
backfill:
# Whether or not the Facebook users of logged in Matrix users should be
# invited to private chats when backfilling history from Facebook. This is
# usually needed to prevent rate limits and to allow timestamp massaging.
invite_own_puppet: true
# Maximum number of messages to backfill initially.
# Set to 0 to disable backfilling when creating portal.
initial_limit: 0
# Maximum number of messages to backfill if messages were missed while
# the bridge was disconnected.
# Set to 0 to disable backfilling missed messages.
missed_limit: 1000
# If using double puppeting, should notifications be disabled
# while the initial backfill is in progress?
disable_notifications: false
periodic_reconnect:
# Interval in seconds in which to automatically reconnect all users.
# This can be used to automatically mitigate the bug where Facebook stops sending messages.
# Set to -1 to disable periodic reconnections entirely.
interval: 3600
# What to do in periodic reconnects. Either "refresh" or "reconnect"
mode: refresh
# Should even disconnected users be reconnected?
always: false
# The number of seconds that a disconnection can last without triggering an automatic re-sync
# and missed message backfilling when reconnecting.
# Set to 0 to always re-sync, or -1 to never re-sync automatically.
resync_max_disconnected_time: 5
# Whether or not temporary disconnections should send notices to the notice room.
# If this is false, disconnections will never send messages and connections will only send
# messages if it was disconnected for more than resync_max_disconnected_time seconds.
temporary_disconnect_notices: true
# Disable bridge notices entirely
disable_bridge_notices: false
# Whether or not the bridge should try to "refresh" the connection if a normal reconnection
# attempt fails.
refresh_on_reconnection_fail: 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
# When using double puppeting, should muted chats be muted in Matrix?
mute_bridging: false
# Whether or not mute status and tags should only be bridged when the portal room is created.
tag_only_on_create: true
# Permissions for using the bridge.
# Permitted values:
# 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:
{{ matrix_server_name }}: user
{% for user in matrix_bridge_facebook_allowed_external_user %}
'{{ user }}': user
{% endfor %}
{% for admin in matrix_bridge_facebook_admins %}
'@{{ admin }}:{{ matrix_server_name }}': admin
{% endfor %}
logging:
version: 1
formatters:
colored:
(): mautrix_facebook.util.ColorFormatter
format: '[%(asctime)s] [%(levelname)s@%(name)s] %(message)s'
normal:
format: '[%(asctime)s] [%(levelname)s@%(name)s] %(message)s'
handlers:
file:
class: logging.handlers.RotatingFileHandler
formatter: normal
filename: /var/log/bridge_facebook/mautrix-facebook.log
maxBytes: 10485760
backupCount: 10
console:
class: logging.StreamHandler
formatter: colored
loggers:
mau:
level: DEBUG
paho:
level: INFO
aiohttp:
level: INFO
root:
level: DEBUG
handlers: [file, console]