feat: Initial implementation of OIDC

src/admin/oidc/commands.rs

@@ -0,0 +1,17 @@
+use conduwuit::Result;
+
+use crate::utils::parse_active_local_user_id;
+
+impl crate::Context<'_> {
+	pub(super) async fn oidc_link(&self, user_id: String, subject: String) -> Result {
+		let user_id = parse_active_local_user_id(self.services, &user_id).await?;
+
+		self.services.oidc.link_user(&user_id, &subject).await;
+
+		self.write_str("Account linked successfully").await?;
+
+		Ok(())
+	}
+
+	pub(super) async fn oidc_unlink(&self, _user_id: String) -> Result { todo!() }
+}

src/admin/oidc/mod.rs

@@ -0,0 +1,21 @@
+mod commands;
+
+use clap::Subcommand;
+use conduwuit::Result;
+use conduwuit_macros::admin_command_dispatch;
+
+#[admin_command_dispatch]
+#[derive(Debug, Subcommand)]
+pub enum OidcCommand {
+	/// Link a user ID to the given subject claim.
+	#[clap(name = "link")]
+	OidcLink {
+		user_id: String,
+		subject: String,
+	},
+
+	#[clap(name = "unlink")]
+	OidcUnlink {
+		user_id: String,
+	},
+}