# This is a config file for the Chorus nostr relay
# Refer to https://github.com/mikedilger/chorus

# This is the directory where chorus stores data.
#
# Default is "/tmp".
#
# If deployed according to docs/DEPLOYING.md, is "/opt/chorus/var/chorus".
#
data_directory = "/opt/chorus/var/chorus"


# This is the IP address that chorus listens on. If deployed directly on the
# Internet, this should be an Internet globally accessible IP address.
# If proxied or if testing locally, this can be a localhost address.
#
# Default is "127.0.0.1".
#
ip_address = "127.0.0.1"


# This is the port that chorus listens on. If deployed directly on the Internet,
# this should probably be 443 which is the expected default port for the
# "wss://" protocol.
#
# Default is 443.
#
port = 443


# This is the DNS hostname of your relay.
# This is used for verifying AUTH events, which specify your relay host name.
#
hostname = "localhost"


# If chorus is behind a proxy like nginx, set this to true. In this case chorus will look for and
# trust the `X-Real-Ip` HTTP request header to get the real IP of the client. This header MUST exist
# or the connection will not be served.
#
# Default is false.
#
chorus_is_behind_a_proxy = false


# If true, chorus will handle TLS, running over HTTPS. If false, chorus run over HTTP.
#
# If you are proxying via nginx, normally you will set this to false and allow nginx to handle TLS.
#
use_tls = true


# This is the path to your TLS certificate chain file.
#
# If use_tls is false, this value is irrelevant.
#
# Default is "./tls/fullchain.pem".
#
# If deployed according to docs/DEPLOYING.md using the direct method, this is set to
# "/opt/chorus/etc/tls/fullchain.pem" and the systemd service copies letsencrypt TLS
# certificates into this position on start.
#
certchain_pem_path = "/opt/chorus/etc/tls/fullchain.pem"


# This is the path to yoru TLS private key file.
#
# If use_tls is false, this value is irrelevant.
#
# Default is "./tls/privkey.pem".
#
# If deployed according to docs/DEPLOYING.md using the direct method, this is set to
# "/opt/chorus/etc/tls/privkey.pem" and the systemd service copies letsencrypt TLS
# certificates into this position on start.
#
key_pem_path = "/opt/chorus/etc/tls/privkey.pem"


# This is a name for your relay, displayed in the NIP-11 response.
#
# Default is "Chorus Default"
#
# name = "Chorus Default"


# This is a description for your relay, displayed in the NIP-11 response.
#
# Default is "A default config of the Chorus relay"
#
# description = "A default config of the Chorus relay"


# This is an icon URL pointing to an image representing your relay, displayed in the NIP-11
# response.
#
# Default is not set
#
# icon_url =


# This is an optional contact for your relay, displayed in the NIP-11 response.
#
# Default is not set
#
# contact =


# This is an optional public key (hex format) for your relay, displayed in the NIP-11 response.
#
# Default is not set
#
# public_key_hex =


# If open_relay is true, the relay behaves as an open public relay.
#
# Default is false.
#
# open_relay = false


# These are the public keys (hex format) of your relay's authorized users. See BEHAVIOR.md
# to understand how chorus uses these.
#
# Default is []
#
user_hex_keys = []


# These are the public keys (hex format) of your relay's moderators.
# Moderators can moderate the relay using the following NIP PR:
# https://github.com/nostr-protocol/nips/pull/1325
#
# Default is []
#
moderator_hex_keys = []


# This is a boolean indicating whether or not chorus verifies incoming events.
#
# This setting only skips verification of events that are submitted by AUTHed and
# authorized users. Chorus always verifies incoming AUTH events, and any event that
# is not submitted by an AUTHed and authorized relay user.
#
# Default is true.
#
verify_events = true


# This is a boolean indicating whether or not scraping is allowed. Scraping is any filter
# where all of the following are true:
#
# - `ids` is missing or empty
# - `authors` is missing or empty
# - There are no `#X` tag filters
#
# Filter that fail to match these conditions will be rejected if allow_scraping is false.
#
# If allow_scraping is true, be aware that filters that don't match any of these conditions
# have no indexes to speed up their query, so they scan through every single event on the relay.
#
# The purpose of this setting is as a temporary setting that allows you to dump every single
# event on your relay, but the `dump` binary automatically sets it while it runs.
#
# Default is false.
#
allow_scraping = false


# This is a u32 count of events indicating a filter `limit` value under which a scrape is
# allowed, irrespective of the `allow_scraping` setting. Such scrapes are not expensive due
# to the limit.
#
# See `allow_scraping` to learn the definition of a scrape.
#
# The default is 100.
#
allow_scrape_if_limited_to = 100


# This is a u64 number of seconds indicating a filter time range under which a scrape is
# allowed, irrespective of the `allow_scraping` setting. Such scrapes are rarely expensive
# due to the short time period.
#
# See `allow_scraping` to learn the definition of a scrape.
#
# The default is 7200.
#
allow_scrape_if_max_seconds = 7200


# This is an integer indicating the maximum number of subscriptions a connection can have open
# at a given time.
#
# If you set this too low, clients will be incentivised to resubmit updated subscriptions which
# will pull down the same events over again, instead of submitting a new subscription that only
# gets the additional events that the client wants. It may seem intuitive that setting this to
# a low value like 10 will decrease server load, but it will probably increase server load.
#
# It is strongly recommended to not go below 16.
#
# Default is 128.
#
max_subscriptions = 128


# Whether or not to accept and serve all ephemeral events to everybody.
#
# Default is true.
#
serve_ephemeral = true

# Whether or not to accept and serve kind 10002 Relay List Metadata (NIP-65) events to everybody.
#
# Default is true.
#
serve_relay_lists = true

# How verbose to log issues with the main server code.
#
# Possible values are: Trace, Debug, Info, Warn, Error
#
# Default is Info
#
server_log_level = "Info"


# How verbose to log library issues and other general issues
#
# Possible values are: Trace, Debug, Info, Warn, Error
#
# Default is Info
#
library_log_level = "Info"


# How verbose to log issues with client requests
#
# Possible values are: Trace, Debug, Info, Warn, Error
#
# Default is Info
#
client_log_level = "Info"


# Whether to block incoming connections based on recent prior behavior
#
# Chorus normally blocks IP addresses for a short period preventing quick reconnections,
# and for a longer period if the previous connection ended in some error condition.
#
# By setting this variable to false, it will allow all connections, incluing poorly behaving
# clients that reconnect over and over in a tight loop.
#
# Default is true
#
enable_ip_blocking = true


# Number of seconds to ban an IP address after disconnection.
#
# Enforcing this minimum ban prevents clients from immediately reconnecting which can cause tight loops.
# Only relevant if enable_ip_blocking is true.
#
# Default is 1
#
minimum_ban_seconds = 1


# Number of seconds beyond which chorus times out a client that has no open subscriptions.
#
# Default is 60
#
timeout_seconds = 60


# Maximum number of websocket connections per IP address
#
# Default is 5
#
max_connections_per_ip = 5


# The maximum rate (excluding bursts) of data that will be transmitted over a websocket connection
# (both directions, per connection). Beyond this rate (in a sustained way) the connection will be
# closed.
#
# Default is 1024576 bytes per second.
#
throttling_bytes_per_second = 1024576


# The allowable bursts of data beyond the normal rate.
#
# We keep a count of how many bytes they are allowed, and that count starts at this number.
# As bytes are consumed the count goes down, but we refund throttling_bytes_per_second every
# second. If that bucket doesn't have enough, the burst won't be allowed and the connection
# will be closed.
#
# Default is 16777216 bytes.
#
throttling_burst = 16777216


# Blossom server directory
#
# Set to a filesystem directory where you want chorus to store files.
#
# Blossom allows clients to upload files making them available for the public to download.
# Our implementation makes all files publicly readable, but only chorus users can upload
# or delete.  See https://github.com/hzrd149/blossom
#
# Default is not set
#
# blossom_directory =