feat: custom text for user displayname suffix upon registration

replaces the lightning bolt emoji option with support for
your own text or emojis

Signed-off-by: strawberry <strawberry@puppygock.gay>

conduwuit-example.toml

@@ -204,10 +204,6 @@ url_preview_check_root_domain = false
 # 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"
@@ -219,6 +215,12 @@ enable_lightning_bolt = false
 # Defaults to true.
 #allow_unstable_room_versions = true
 
+# Option to control adding arbitrary text to the end of the user's displayname upon registration with a space before the text.
+# This was the lightning bolt emoji option, just replaced with support for adding your own custom text or emojis.
+# To disable, set this to "" (an empty string)
+# Defaults to "🏳️‍⚧️" (trans pride flag)
+#new_user_displayname_suffix = "🏳️‍⚧️"
+
 # 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.

src/api/client_server/account.rs

@@ -233,9 +233,9 @@ pub async fn register_route(body: Ruma<register::v3::Request>) -> Result<registe
     // Default to pretty displayname
     let mut displayname = user_id.localpart().to_owned();
 
-    // If enabled append lightning bolt to display name (default true)
-    if services().globals.enable_lightning_bolt() {
-        displayname.push_str(" ⚡️");
+    // If `new_user_displayname_suffix` is set, registration will push whatever content is set to the user's display name with a space before it
+    if !services().globals.new_user_displayname_suffix().is_empty() {
+        displayname.push_str(&(" ".to_owned() + services().globals.new_user_displayname_suffix()));
     }
 
     services()

src/config/mod.rs

@@ -36,8 +36,8 @@ pub struct Config {
     pub database_path: String,
     #[serde(default = "default_db_cache_capacity_mb")]
     pub db_cache_capacity_mb: f64,
-    #[serde(default = "true_fn")]
-    pub enable_lightning_bolt: bool,
+    #[serde(default = "default_new_user_displayname_suffix")]
+    pub new_user_displayname_suffix: String,
     #[serde(default = "true_fn")]
     pub allow_check_for_updates: bool,
     #[serde(default = "default_conduit_cache_capacity_modifier")]
@@ -246,8 +246,8 @@ impl fmt::Display for Config {
                 &self.allow_guest_registration.to_string(),
             ),
             (
-                "Enabled lightning bolt",
-                &self.enable_lightning_bolt.to_string(),
+                "New user display name suffix",
+                &self.new_user_displayname_suffix,
             ),
             ("Allow encryption", &self.allow_encryption.to_string()),
             ("Allow federation", &self.allow_federation.to_string()),
@@ -509,3 +509,7 @@ fn default_ip_range_denylist() -> Vec<String> {
 fn default_url_preview_max_spider_size() -> usize {
     1_000_000 // 1MB
 }
+
+fn default_new_user_displayname_suffix() -> String {
+    "🏳️‍⚧️".to_owned()
+}

src/service/admin/mod.rs

@@ -647,9 +647,11 @@ impl Service {
                     // Default to pretty displayname
                     let mut displayname = user_id.localpart().to_owned();
 
-                    // If enabled append lightning bolt to display name (default true)
-                    if services().globals.enable_lightning_bolt() {
-                        displayname.push_str(" ⚡️");
+                    // If `new_user_displayname_suffix` is set, registration will push whatever content is set to the user's display name with a space before it
+                    if !services().globals.new_user_displayname_suffix().is_empty() {
+                        displayname.push_str(
+                            &(" ".to_owned() + services().globals.new_user_displayname_suffix()),
+                        );
                     }
 
                     services()

src/service/globals/mod.rs

@@ -352,8 +352,8 @@ impl Service<'_> {
         self.config.default_room_version.clone()
     }
 
-    pub fn enable_lightning_bolt(&self) -> bool {
-        self.config.enable_lightning_bolt
+    pub fn new_user_displayname_suffix(&self) -> &String {
+        &self.config.new_user_displayname_suffix
     }
 
     pub fn allow_check_for_updates(&self) -> bool {