conduit/debian/postinst

#!/bin/sh
set -e

. /usr/share/debconf/confmodule

CONDUIT_CONFIG_PATH=/etc/matrix-conduit
CONDUIT_CONFIG_FILE="${CONDUIT_CONFIG_PATH}/conduit.toml"
CONDUIT_DATABASE_PATH=/var/lib/matrix-conduit/

case "$1" in
  configure)
    # Create the `_matrix-conduit` user if it does not exist yet.
    if ! getent passwd _matrix-conduit > /dev/null ; then
      echo 'Adding system user for the Conduit Matrix homeserver' 1>&2
      adduser --system --group --quiet \
        --home "$CONDUIT_DATABASE_PATH" \
        --disabled-login \
        --force-badname \
        _matrix-conduit
    fi

    # Create the database path if it does not exist yet and fix up ownership
    # and permissions.
    mkdir -p "$CONDUIT_DATABASE_PATH"
    chown _matrix-conduit "$CONDUIT_DATABASE_PATH"
    chmod 700 "$CONDUIT_DATABASE_PATH"

    if [ ! -e "$CONDUIT_CONFIG_FILE" ]; then
      # Write the debconf values in the config.
      db_get matrix-conduit/hostname
      CONDUIT_SERVER_NAME="$RET"
      db_get matrix-conduit/address
      CONDUIT_ADDRESS="$RET"
      db_get matrix-conduit/port
      CONDUIT_PORT="$RET"
      mkdir -p "$CONDUIT_CONFIG_PATH"
      cat > "$CONDUIT_CONFIG_FILE" << EOF
# =============================================================================
#  This is the official example config for conduwuit.
#  If you use it for your server, you will need to adjust it to your own needs.
#  At the very least, change the server_name field!
# =============================================================================

[global]

# The server_name is the pretty name of this server. It is used as a suffix for user
# and room ids. Examples: matrix.org, conduit.rs

# The Conduit server needs all /_matrix/ requests to be reachable at
# https://your.server.name/ on port 443 (client-server) and 8448 (federation).

# If that's not possible for you, you can create /.well-known files to redirect
# requests (delegation). See
# https://spec.matrix.org/latest/client-server-api/#getwell-knownmatrixclient
# and
# https://spec.matrix.org/v1.9/server-server-api/#getwell-knownmatrixserver
# for more information

# YOU NEED TO EDIT THIS
server_name = "${CONDUIT_SERVER_NAME}"

# Servers listed here will be used to gather public keys of other servers.
# Generally, copying this exactly should be enough. (Currently, conduwuit doesn't
# support batched key requests, so this list should only contain Synapse
# servers.) Defaults to `matrix.org`
# trusted_servers = ["matrix.org"]



### Database configuration

# This is the only directory where conduwuit will save its data, including media
database_path = "${CONDUIT_DATABASE_PATH}"

# Database backend: Only rocksdb and sqlite are supported. Please note that sqlite
# will perform significantly worse than rocksdb as it is not intended to be used the
# way it is by conduwuit. sqlite only exists for historical reasons.
database_backend = "rocksdb"



### Network

# The port conduwuit will be running on. You need to set up a reverse proxy such as
# Caddy or Nginx so all requests to /_matrix on port 443 and 8448 will be
# forwarded to the conduwuit instance running on this port
# Docker users: Don't change this, you'll need to map an external port to this.
port = ${CONDUIT_PORT}

# default address (IPv4 or IPv6) conduwuit will listen on. Generally you want this to be
# localhost (127.0.0.1 / ::1). If you are using Docker or a container NAT networking setup, you
# likely need this to be 0.0.0.0. 
address = "${CONDUIT_ADDRESS}"

# How many requests conduwuit sends to other servers at the same time concurrently. Default is 500
# Note that because conduwuit is very fast unlike other homeserver implementations, setting this too
# high could inadvertently result in ratelimits kicking in, or overloading lower-end homeservers out there.
#
# A valid use-case for enabling this is if you have a significant amount of overall federation activity
# such as many rooms joined/tracked, and many servers in the true destination cache caused by that. Upon
# rebooting conduwuit, depending on how fast your resources are, client and incoming federation requests
# may timeout or be "stalled" for a period of time due to hitting the max concurrent requests limit from
# refreshing federation/destination caches and such.
#
# If you have a lot of active users on your homeserver, you will definitely need to raise this.
#
# No this will not speed up room joins.
#max_concurrent_requests = 500

# Max request size for file uploads
max_request_size = 20_000_000 # in bytes

# Uncomment unix_socket_path to listen on a UNIX socket at the specified path.
# If listening on a UNIX socket, you must remove/comment the 'address' key if defined and add your
# reverse proxy to the 'conduwuit' group, unless world RW permissions are specified with unix_socket_perms (666 minimum).
#unix_socket_path = "/run/conduwuit/conduwuit.sock"
#unix_socket_perms = 660

# Set this to true for conduwuit to compress HTTP response bodies using zstd.
# Please be aware that enabling HTTP compression may weaken or even defeat TLS.
# Most users should not need to enable this.
# See https://breachattack.com/ and https://wikipedia.org/wiki/BREACH before deciding to enable this.
zstd_compression = false

# Vector list of IPv4 and IPv6 CIDR ranges / subnets *in quotes* that you do not want conduwuit to send outbound requests to.
# Defaults to RFC1918, unroutable, loopback, multicast, and testnet addresses for security.
#
# To disable, set this to be an empty vector (`[]`).
#
# Currently this does not account for proxies in use like Synapse does.
ip_range_denylist = [
    "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",
]



### Moderation / Privacy / Security

# Set to true to allow user type "guest" registrations. Element attempts to register guest users automatically.
# For private homeservers, this is best at false.
allow_guest_registration = false

# Vector list of servers that conduwuit will refuse to download remote media from.
# No default.
# prevent_media_downloads_from = ["example.com", "example.local"]

# Enables open registration. If set to false, no users can register on this
# server.
# If set to true without a token configured, users can register with no form of 2nd-
# step only if you set
# `yes_i_am_very_very_sure_i_want_an_open_registration_server_prone_to_abuse` to
# true in your config. If you would like
# registration only via token reg, please configure the `registration_token` key.
allow_registration = false
# Please note that an open registration homeserver with no second-step verification
# is highly prone to abuse and potential defederation by homeservers, including
# matrix.org.

# A static registration token that new users will have to provide when creating
# an account. If unset and `allow_registration` is true, registration is open
# without any condition. YOU NEED TO EDIT THIS.
registration_token = "change this token for something specific to your server"

# controls whether federation is allowed or not
# defaults to true
# allow_federation = true

# controls whether users are allowed to create rooms.
# appservices and admins are always allowed to create rooms
# defaults to true
# allow_room_creation = true

# Set this to true to allow your server's public room directory to be federated.
# Set this to false to protect against /publicRooms spiders, but will forbid external users
# from viewing your server's public room directory. If federation is disabled entirely
# (`allow_federation`), this is inherently false.
allow_public_room_directory_over_federation = false

# Set this to true to allow your server's public room directory to be queried without client
# authentication (access token) through the Client APIs. Set this to false to protect against /publicRooms spiders.
allow_public_room_directory_without_auth = false

# Set this to true to allow federating device display names / allow external users to see your device display name.
# If federation is disabled entirely (`allow_federation`), this is inherently false. For privacy, this is best disabled.
allow_device_name_federation = false

# Vector list of domains allowed to send requests to for URL previews. Defaults to none.
# Note: this is a *contains* match, not an explicit match. Putting "google.com" will match "https://google.com" and "http://mymaliciousdomainexamplegoogle.com"
url_preview_domain_contains_allowlist = []

# Vector list of explicit domains allowed to send requests to for URL previews. Defaults to none.
# Note: This is an *explicit* match, not a ccontains match. Putting "google.com" will match "https://google.com", "http://google.com", but not "https://mymaliciousdomainexamplegoogle.com"
url_preview_domain_explicit_allowlist = []

# Vector list of URLs allowed to send requests to for URL previews. Defaults to none.
# Note that this is a *contains* match, not an explicit match. Putting "https://google.com" will match "https://google.com/" and "https://google.com/url?q=https://mymaliciousdomainexample.com"
url_preview_url_contains_allowlist = []



### Misc

# max log level for conduwuit. allows debug, info, warn, or error
#log = "warn"

# controls whether encrypted rooms and events are allowed (default true)
#allow_encryption = false

# conduwuit will send a simple GET request periodically to `https://pupbrain.dev/check-for-updates/stable`
# for any new announcements made. Despite the name, this is not an update check
# endpoint, it is simply an announcement check endpoint. I don't plan on using
# this so feel free to disable it.
allow_check_for_updates = true

# Enables adding the lightning bolt emoji (⚡️) to all newly registered users'
# initial display names. 
enable_lightning_bolt = false

# If you are using delegation via well-known files and you cannot serve them from your reverse proxy, you can
# uncomment these to serve them directly from conduwuit. This requires proxying all requests to conduwuit, not just `/_matrix` to work.
#well_known_server = "matrix.example.com:443"
#well_known_client = "https://matrix.example.com"
# Note that whatever you put will show up in the well-known JSON values.

# Set to false to disable users from joining or creating room versions that aren't 100% officially supported by conduwuit.
# conduwuit officially supports room versions 6 - 10. conduwuit has experimental/unstable support for 1 - 5, and 11.
# Defaults to true.
#allow_unstable_room_versions = true

# Set this to any float value to multiply conduwuit's in-memory LRU caches with.
# May be useful if you have significant memory to spare to increase performance.
# Defaults to 1.0.
#conduit_cache_capacity_modifier = 1.0

# Set this to any float value in megabytes for conduwuit to tell the database engine that this much memory is available for database-related caches.
# May be useful if you have significant memory to spare to increase performance.
# Defaults to 900.0
#db_cache_capacity_mb = 900.0



### RocksDB options

# Set this to true to use RocksDB config options that are tailored to HDDs (slower device storage)
#rocksdb_optimize_for_spinning_disks = false

# RocksDB log level. This is not the same as conduwuit's log level. This is the log level for RocksDB itself
# which show up in your database folder/path as `LOG` files. Defaults to warn. conduwuit will typically log RocksDB errors. 
#rocksdb_log_level = "warn"

# Max RocksDB `LOG` file size before rotating in bytes. Defaults to 4MB.
#rocksdb_max_log_file_size = 4194304

# Time in seconds before RocksDB will forcibly rotate logs. Defaults to 0.
#rocksdb_log_time_to_roll = 0



### Presence

# Config option to control local (your server only) presence updates/requests. Defaults to false.
# Note that presence on conduwuit is very fast unlike Synapse's.
#allow_local_presence = false

# Config option to control incoming federated presence updates/requests. Defaults to false.
# This option receives presence updates from other servers, but does not send any unless `allow_outgoing_presence` is true.
# Note that presence on conduwuit is very fast unlike Synapse's.
#allow_incoming_presence = false

# Config option to control outgoing presence updates/requests. Defaults to false.
# This option sends presence updates to other servers, but does not receive any unless `allow_incoming_presence` is true.
# Note that presence on conduwuit is very fast unlike Synapse's.
#
# Warning: Outgoing federated presence is not spec compliant due to relying on PDUs and EDUs combined.
# Outgoing presence will not be very reliable due to this and any issues with federated outgoing presence are very likely attributed to this issue.
# Incoming presence and local presence are unaffected.
#allow_outgoing_presence = false

# Config option to control how many seconds before presence updates that you are idle. Defaults to 5 minutes.
#presence_idle_timeout_s = 300

# Config option to control how many seconds before presence updates that you are offline. Defaults to 30 minutes.
#presence_offline_timeout_s = 1800

EOF
    fi
    ;;
esac

#DEBHELPER#