graphql: Expose CAPTCHA config and whether password registration is enabled

crates/handlers/src/graphql/model/site_config.rs

@@ -14,15 +14,19 @@
 
 #![allow(clippy::str_to_string)] // ComplexObject macro uses &str.to_string()
 
-use async_graphql::{ComplexObject, SimpleObject, ID};
+use async_graphql::{ComplexObject, Enum, SimpleObject, ID};
 use url::Url;
 
 pub const SITE_CONFIG_ID: &str = "site_config";
+pub const CAPTCHA_CONFIG_ID: &str = "captcha_config";
 
 #[derive(SimpleObject)]
 #[graphql(complex)]
 #[allow(clippy::struct_excessive_bools)]
 pub struct SiteConfig {
+    /// The configuration of CAPTCHA provider.
+    captcha_config: Option<CaptchaConfig>,
+
     /// The server name of the homeserver.
     server_name: String,
 
@@ -47,12 +51,33 @@ pub struct SiteConfig {
     /// Whether passwords are enabled and users can change their own passwords.
     password_change_allowed: bool,
 
+    /// Whether passwords are enabled and users can register using a password.
+    password_registration_enabled: bool,
+
     /// Minimum password complexity, from 0 to 4, in terms of a zxcvbn score.
     /// The exact scorer (including dictionaries and other data tables)
     /// in use is <https://crates.io/crates/zxcvbn>.
     minimum_password_complexity: u8,
 }
 
+#[derive(SimpleObject)]
+#[graphql(complex)]
+pub struct CaptchaConfig {
+    /// Which Captcha service is being used
+    pub service: CaptchaService,
+
+    /// The site key used by the instance
+    pub site_key: String,
+}
+
+/// Which Captcha service is being used
+#[derive(Enum, Debug, Clone, Copy, PartialEq, Eq)]
+pub enum CaptchaService {
+    RecaptchaV2,
+    CloudflareTurnstile,
+    HCaptcha,
+}
+
 #[ComplexObject]
 impl SiteConfig {
     /// The ID of the site configuration.
@@ -66,6 +91,7 @@ impl SiteConfig {
     /// [`mas_data_model:::SiteConfig`].
     pub fn new(data_model: &mas_data_model::SiteConfig) -> Self {
         Self {
+            captcha_config: data_model.captcha.as_ref().map(CaptchaConfig::new),
             server_name: data_model.server_name.clone(),
             policy_uri: data_model.policy_uri.clone(),
             tos_uri: data_model.tos_uri.clone(),
@@ -74,7 +100,32 @@ impl SiteConfig {
             display_name_change_allowed: data_model.displayname_change_allowed,
             password_login_enabled: data_model.password_login_enabled,
             password_change_allowed: data_model.password_change_allowed,
+            password_registration_enabled: data_model.password_registration_enabled,
             minimum_password_complexity: data_model.minimum_password_complexity,
         }
     }
 }
+
+#[ComplexObject]
+impl CaptchaConfig {
+    pub async fn id(&self) -> ID {
+        CAPTCHA_CONFIG_ID.into()
+    }
+}
+
+impl CaptchaConfig {
+    /// Create a new [`CaptchaConfig`] from the data model
+    /// [`mas_data_model:::CaptchaConfig`].
+    pub fn new(data_model: &mas_data_model::CaptchaConfig) -> Self {
+        Self {
+            service: match data_model.service {
+                mas_data_model::CaptchaService::RecaptchaV2 => CaptchaService::RecaptchaV2,
+                mas_data_model::CaptchaService::CloudflareTurnstile => {
+                    CaptchaService::CloudflareTurnstile
+                }
+                mas_data_model::CaptchaService::HCaptcha => CaptchaService::HCaptcha,
+            },
+            site_key: data_model.site_key.clone(),
+        }
+    }
+}