Add option to randomize instance statistics

config.example.toml

@@ -103,6 +103,14 @@ description = "https://www.youtube.com/watch?v=6lnnPnr_0SU"
 # This is the maximum length of posts that can be posted on your instance
 # On Mastodon it's 500, on most other implementations it's freely configurable
 character-limit = 5000
+# Randomize the statistics of your server
+#
+# Kitsune will expose certain statistics about your server by default.
+# Set this value to `true` to serve randomized statistics instead.
+#
+# Why you'd want this can have many reasons, one of them being privacy reasons.
+# Perhaps you don't want to expose accurate information about your server publicly.
+randomize-statistics = false
 # Registrations open
 #
 # This signals to clients whether your registrations are currently open or not.

crates/kitsune-config/src/instance.rs

@@ -17,5 +17,6 @@ pub struct Configuration {
     pub webfinger_domain: Option<SmolStr>,
     pub character_limit: usize,
     pub federation_filter: FederationFilterConfiguration,
+    pub randomize_statistics: bool,
     pub registrations_open: bool,
 }

crates/kitsune-service/src/instance.rs

@@ -6,7 +6,16 @@ use kitsune_db::{
 };
 use kitsune_derive::kitsune_service;
 use kitsune_error::{Error, Result};
+use rand::seq::IteratorRandom;
 use smol_str::SmolStr;
+use std::ops::RangeInclusive;
+
+const STATISTICS_RANGE: RangeInclusive<u64> = 24..=1312_1312;
+
+#[inline]
+fn random_statistic() -> u64 {
+    STATISTICS_RANGE.choose(&mut rand::thread_rng()).unwrap()
+}
 
 #[kitsune_service]
 pub struct InstanceService {
@@ -16,6 +25,7 @@ pub struct InstanceService {
     #[builder(setter(into))]
     description: SmolStr,
     character_limit: usize,
+    randomize_statistics: bool,
     registrations_open: bool,
 }
 
@@ -36,6 +46,10 @@ impl InstanceService {
     }
 
     pub async fn known_instances(&self) -> Result<u64> {
+        if self.randomize_statistics {
+            return Ok(random_statistic());
+        }
+
         with_connection!(self.db_pool, |db_conn| {
             accounts::table
                 .filter(accounts::local.eq(false))
@@ -50,6 +64,10 @@ impl InstanceService {
     }
 
     pub async fn local_post_count(&self) -> Result<u64> {
+        if self.randomize_statistics {
+            return Ok(random_statistic());
+        }
+
         with_connection!(self.db_pool, |db_conn| {
             posts::table
                 .filter(posts::is_local.eq(true))
@@ -67,6 +85,10 @@ impl InstanceService {
     }
 
     pub async fn user_count(&self) -> Result<u64> {
+        if self.randomize_statistics {
+            return Ok(random_statistic());
+        }
+
         with_connection!(self.db_pool, |db_conn| {
             users::table
                 .count()

kitsune/src/lib.rs

@@ -126,6 +126,7 @@ pub async fn initialise_state(
         .db_pool(db_pool.clone())
         .description(config.instance.description.clone())
         .name(config.instance.name.clone())
+        .randomize_statistics(config.instance.randomize_statistics)
         .registrations_open(config.instance.registrations_open)
         .build();
 

website/src/content/docs/configuration/instance.mdx

@@ -56,6 +56,16 @@ Similar to `name`, this setting adjusts the description on the landing page and
 
 This setting sets the character limit specific to your instance.
 
+## `randomize-statistics`
+
+Randomize the statistics of your server
+
+Kitsune will expose certain statistics about your server by default.  
+Set this value to `true` to serve randomized statistics instead.
+
+Why you'd want this can have many reasons, one of them being privacy reasons.  
+Perhaps you don't want to expose accurate information about your server publicly.
+
 ## `registrations-open`
 
 Determines whether your instance accepts new users or not. When set to `false`, the registration APIs will return a failure code.