Merge pull request #63 from msirringhaus/refactoring

Fix #61: Refactor model.rs and management.rs

Author: AlfioEmanueleFresta

libwebauthn/src/management.rs

@@ -0,0 +1,226 @@
+pub use crate::transport::error::{CtapError, Error};
+use crate::transport::Channel;
+use crate::webauthn::handle_errors;
+use crate::webauthn::{user_verification, UsedPinUvAuthToken};
+use crate::{
+    ops::webauthn::UserVerificationRequirement,
+    pin::{PinProvider, PinUvAuthProtocol},
+    proto::ctap2::{
+        Ctap2, Ctap2AuthTokenPermissionRole, Ctap2AuthenticatorConfigCommand,
+        Ctap2AuthenticatorConfigRequest, Ctap2GetInfoResponse, Ctap2UserVerifiableRequest,
+    },
+};
+use async_trait::async_trait;
+use serde_bytes::ByteBuf;
+use serde_cbor::ser::to_vec;
+use std::time::Duration;
+use tracing::info;
+
+#[async_trait]
+pub trait AuthenticatorConfig {
+    async fn toggle_always_uv(
+        &mut self,
+        pin_provider: &Box<dyn PinProvider>,
+        timeout: Duration,
+    ) -> Result<(), Error>;
+
+    async fn enable_enterprise_attestation(
+        &mut self,
+        pin_provider: &Box<dyn PinProvider>,
+        timeout: Duration,
+    ) -> Result<(), Error>;
+
+    async fn set_min_pin_length(
+        &mut self,
+        new_pin_length: u64,
+        pin_provider: &Box<dyn PinProvider>,
+        timeout: Duration,
+    ) -> Result<(), Error>;
+
+    async fn force_change_pin(
+        &mut self,
+        force: bool,
+        pin_provider: &Box<dyn PinProvider>,
+        timeout: Duration,
+    ) -> Result<(), Error>;
+
+    async fn set_min_pin_length_rpids(
+        &mut self,
+        rpids: Vec<String>,
+        pin_provider: &Box<dyn PinProvider>,
+        timeout: Duration,
+    ) -> Result<(), Error>;
+}
+
+#[async_trait]
+impl<C> AuthenticatorConfig for C
+where
+    C: Channel,
+{
+    async fn toggle_always_uv(
+        &mut self,
+        pin_provider: &Box<dyn PinProvider>,
+        timeout: Duration,
+    ) -> Result<(), Error> {
+        let mut req = Ctap2AuthenticatorConfigRequest::new_toggle_always_uv();
+
+        loop {
+            let uv_auth_used = user_verification(
+                self,
+                UserVerificationRequirement::Required,
+                &mut req,
+                pin_provider,
+                timeout,
+            )
+            .await?;
+            // On success, this is an all-empty Ctap2AuthenticatorConfigResponse
+            handle_errors!(
+                self,
+                self.ctap2_authenticator_config(&req, timeout).await,
+                uv_auth_used
+            )
+        }
+    }
+
+    async fn enable_enterprise_attestation(
+        &mut self,
+        pin_provider: &Box<dyn PinProvider>,
+        timeout: Duration,
+    ) -> Result<(), Error> {
+        let mut req = Ctap2AuthenticatorConfigRequest::new_enable_enterprise_attestation();
+
+        loop {
+            let uv_auth_used = user_verification(
+                self,
+                UserVerificationRequirement::Required,
+                &mut req,
+                pin_provider,
+                timeout,
+            )
+            .await?;
+            // On success, this is an all-empty Ctap2AuthenticatorConfigResponse
+            handle_errors!(
+                self,
+                self.ctap2_authenticator_config(&req, timeout).await,
+                uv_auth_used
+            )
+        }
+    }
+
+    async fn set_min_pin_length(
+        &mut self,
+        new_pin_length: u64,
+        pin_provider: &Box<dyn PinProvider>,
+        timeout: Duration,
+    ) -> Result<(), Error> {
+        let mut req = Ctap2AuthenticatorConfigRequest::new_set_min_pin_length(new_pin_length);
+
+        loop {
+            let uv_auth_used = user_verification(
+                self,
+                UserVerificationRequirement::Required,
+                &mut req,
+                pin_provider,
+                timeout,
+            )
+            .await?;
+            // On success, this is an all-empty Ctap2AuthenticatorConfigResponse
+            handle_errors!(
+                self,
+                self.ctap2_authenticator_config(&req, timeout).await,
+                uv_auth_used
+            )
+        }
+    }
+
+    async fn force_change_pin(
+        &mut self,
+        force: bool,
+        pin_provider: &Box<dyn PinProvider>,
+        timeout: Duration,
+    ) -> Result<(), Error> {
+        let mut req = Ctap2AuthenticatorConfigRequest::new_force_change_pin(force);
+
+        loop {
+            let uv_auth_used = user_verification(
+                self,
+                UserVerificationRequirement::Required,
+                &mut req,
+                pin_provider,
+                timeout,
+            )
+            .await?;
+            // On success, this is an all-empty Ctap2AuthenticatorConfigResponse
+            handle_errors!(
+                self,
+                self.ctap2_authenticator_config(&req, timeout).await,
+                uv_auth_used
+            )
+        }
+    }
+
+    async fn set_min_pin_length_rpids(
+        &mut self,
+        rpids: Vec<String>,
+        pin_provider: &Box<dyn PinProvider>,
+        timeout: Duration,
+    ) -> Result<(), Error> {
+        let mut req = Ctap2AuthenticatorConfigRequest::new_set_min_pin_length_rpids(rpids);
+        loop {
+            let uv_auth_used = user_verification(
+                self,
+                UserVerificationRequirement::Required,
+                &mut req,
+                pin_provider,
+                timeout,
+            )
+            .await?;
+            // On success, this is an all-empty Ctap2AuthenticatorConfigResponse
+            handle_errors!(
+                self,
+                self.ctap2_authenticator_config(&req, timeout).await,
+                uv_auth_used
+            )
+        }
+    }
+}
+
+impl Ctap2UserVerifiableRequest for Ctap2AuthenticatorConfigRequest {
+    fn ensure_uv_set(&mut self) {
+        // No-op
+    }
+
+    fn calculate_and_set_uv_auth(
+        &mut self,
+        uv_proto: &Box<dyn PinUvAuthProtocol>,
+        uv_auth_token: &[u8],
+    ) {
+        // pinUvAuthParam (0x04): the result of calling
+        // authenticate(pinUvAuthToken, 32×0xff || 0x0d || uint8(subCommand) || subCommandParams).
+        let mut data = vec![0xff; 32];
+        data.push(0x0D);
+        data.push(self.subcommand as u8);
+        if self.subcommand == Ctap2AuthenticatorConfigCommand::SetMinPINLength {
+            data.extend(to_vec(&self.subcommand_params).unwrap());
+        }
+        let uv_auth_param = uv_proto.authenticate(uv_auth_token, &data);
+        self.protocol = Some(uv_proto.version());
+        self.uv_auth_param = Some(ByteBuf::from(uv_auth_param));
+    }
+
+    fn client_data_hash(&self) -> &[u8] {
+        unreachable!()
+    }
+
+    fn permissions(&self) -> Ctap2AuthTokenPermissionRole {
+        return Ctap2AuthTokenPermissionRole::AUTHENTICATOR_CONFIGURATION;
+    }
+
+    fn permissions_rpid(&self) -> Option<&str> {
+        None
+    }
+
+    fn can_use_uv(&self, info: &Ctap2GetInfoResponse) -> bool {
+        info.option_enabled("uvAcfg")
+    }
+}