feat(core): add support for connectors having separate version call for pre authentication (#4603)

Co-authored-by: hyperswitch-bot[bot] <148525504+hyperswitch-bot[bot]@users.noreply.github.com>

crates/api_models/src/enums.rs

@@ -273,6 +273,15 @@ pub enum AuthenticationConnectors {
     Gpayments,
 }
 
+impl AuthenticationConnectors {
+    pub fn is_separate_version_call_required(&self) -> bool {
+        match self {
+            Self::Threedsecureio | Self::Netcetera => false,
+            Self::Gpayments => true,
+        }
+    }
+}
+
 #[cfg(feature = "payouts")]
 #[derive(
     Clone,

crates/router/src/connector/gpayments.rs

@@ -204,6 +204,7 @@ impl api::IncomingWebhook for Gpayments {
 impl api::ExternalAuthentication for Gpayments {}
 impl api::ConnectorAuthentication for Gpayments {}
 impl api::ConnectorPreAuthentication for Gpayments {}
+impl api::ConnectorPreAuthenticationVersionCall for Gpayments {}
 impl api::ConnectorPostAuthentication for Gpayments {}
 impl
     ConnectorIntegration<
@@ -221,6 +222,14 @@ impl
     > for Gpayments
 {
 }
+impl
+    ConnectorIntegration<
+        api::PreAuthenticationVersionCall,
+        types::authentication::PreAuthNRequestData,
+        types::authentication::AuthenticationResponseData,
+    > for Gpayments
+{
+}
 impl
     ConnectorIntegration<
         api::PostAuthentication,

crates/router/src/connector/netcetera.rs

@@ -228,6 +228,7 @@ fn build_endpoint(
 }
 
 impl api::ConnectorPreAuthentication for Netcetera {}
+impl api::ConnectorPreAuthenticationVersionCall for Netcetera {}
 impl api::ExternalAuthentication for Netcetera {}
 impl api::ConnectorAuthentication for Netcetera {}
 impl api::ConnectorPostAuthentication for Netcetera {}
@@ -451,3 +452,12 @@ impl
     > for Netcetera
 {
 }
+
+impl
+    ConnectorIntegration<
+        api::PreAuthenticationVersionCall,
+        types::authentication::PreAuthNRequestData,
+        types::authentication::AuthenticationResponseData,
+    > for Netcetera
+{
+}

crates/router/src/connector/threedsecureio.rs

@@ -211,6 +211,7 @@ impl api::IncomingWebhook for Threedsecureio {
 }
 
 impl api::ConnectorPreAuthentication for Threedsecureio {}
+impl api::ConnectorPreAuthenticationVersionCall for Threedsecureio {}
 impl api::ExternalAuthentication for Threedsecureio {}
 impl api::ConnectorAuthentication for Threedsecureio {}
 impl api::ConnectorPostAuthentication for Threedsecureio {}
@@ -409,10 +410,6 @@ impl
             data: data.clone(),
             http_code: res.status_code,
         })
-        // Ok(types::authentication::PreAuthNRouterData {
-        //     response,
-        //     ..data.clone()
-        // })
     }
 
     fn get_error_response(
@@ -527,3 +524,12 @@ impl
         self.build_error_response(res, event_builder)
     }
 }
+
+impl
+    ConnectorIntegration<
+        api::PreAuthenticationVersionCall,
+        types::authentication::PreAuthNRequestData,
+        types::authentication::AuthenticationResponseData,
+    > for Threedsecureio
+{
+}

crates/router/src/core/authentication.rs

@@ -140,12 +140,41 @@ pub async fn perform_pre_authentication(
     )
     .await?;
 
-    let router_data = transformers::construct_pre_authentication_router_data(
+    let authentication = if authentication_connector.is_separate_version_call_required() {
-        authentication_connector_name.clone(),
+        let router_data: core_types::authentication::PreAuthNVersionCallRouterData =
-        card_number,
+            transformers::construct_pre_authentication_router_data(
-        &three_ds_connector_account,
+                authentication_connector_name.clone(),
-        business_profile.merchant_id.clone(),
+                card_number.clone(),
-    )?;
+                &three_ds_connector_account,
+                business_profile.merchant_id.clone(),
+            )?;
+        let router_data = utils::do_auth_connector_call(
+            state,
+            authentication_connector_name.clone(),
+            router_data,
+        )
+        .await?;
+
+        let updated_authentication =
+            utils::update_trackers(state, router_data, authentication, acquirer_details.clone())
+                .await?;
+        // from version call response, we will get to know the maximum supported 3ds version.
+        // If the version is not greater than or equal to 3DS 2.0, We should not do the successive pre authentication call.
+        if !updated_authentication.is_separate_authn_required() {
+            return Ok(updated_authentication);
+        }
+        updated_authentication
+    } else {
+        authentication
+    };
+
+    let router_data: core_types::authentication::PreAuthNRouterData =
+        transformers::construct_pre_authentication_router_data(
+            authentication_connector_name.clone(),
+            card_number,
+            &three_ds_connector_account,
+            business_profile.merchant_id.clone(),
+        )?;
     let router_data =
         utils::do_auth_connector_call(state, authentication_connector_name, router_data).await?;
 

crates/router/src/core/authentication/transformers.rs

@@ -109,12 +109,18 @@ pub fn construct_post_authentication_router_data(
     )
 }
 
-pub fn construct_pre_authentication_router_data(
+pub fn construct_pre_authentication_router_data<F: Clone>(
     authentication_connector: String,
     card_holder_account_number: cards::CardNumber,
     merchant_connector_account: &payments_helpers::MerchantConnectorAccountType,
     merchant_id: String,
-) -> RouterResult<types::authentication::PreAuthNRouterData> {
+) -> RouterResult<
+    types::RouterData<
+        F,
+        types::authentication::PreAuthNRequestData,
+        types::authentication::AuthenticationResponseData,
+    >,
+> {
     let router_request = types::authentication::PreAuthNRequestData {
         card_holder_account_number,
     };

crates/router/src/core/payments/flows.rs

@@ -2568,6 +2568,7 @@ macro_rules! default_imp_for_connector_authentication {
         $( impl api::ExternalAuthentication for $path::$connector {}
             impl api::ConnectorAuthentication for $path::$connector {}
             impl api::ConnectorPreAuthentication for $path::$connector {}
+            impl api::ConnectorPreAuthenticationVersionCall for $path::$connector {}
             impl api::ConnectorPostAuthentication for $path::$connector {}
             impl
             services::ConnectorIntegration<
@@ -2583,6 +2584,13 @@ macro_rules! default_imp_for_connector_authentication {
             types::authentication::AuthenticationResponseData,
         > for $path::$connector
         {}
+        impl
+            services::ConnectorIntegration<
+            api::PreAuthenticationVersionCall,
+            types::authentication::PreAuthNRequestData,
+            types::authentication::AuthenticationResponseData,
+        > for $path::$connector
+        {}
         impl
             services::ConnectorIntegration<
             api::PostAuthentication,
@@ -2599,6 +2607,8 @@ impl<const T: u8> api::ExternalAuthentication for connector::DummyConnector<T> {
 #[cfg(feature = "dummy_connector")]
 impl<const T: u8> api::ConnectorPreAuthentication for connector::DummyConnector<T> {}
 #[cfg(feature = "dummy_connector")]
+impl<const T: u8> api::ConnectorPreAuthenticationVersionCall for connector::DummyConnector<T> {}
+#[cfg(feature = "dummy_connector")]
 impl<const T: u8> api::ConnectorAuthentication for connector::DummyConnector<T> {}
 #[cfg(feature = "dummy_connector")]
 impl<const T: u8> api::ConnectorPostAuthentication for connector::DummyConnector<T> {}
@@ -2622,6 +2632,15 @@ impl<const T: u8>
 {
 }
 #[cfg(feature = "dummy_connector")]
+impl<const T: u8>
+    services::ConnectorIntegration<
+        api::PreAuthenticationVersionCall,
+        types::authentication::PreAuthNRequestData,
+        types::authentication::AuthenticationResponseData,
+    > for connector::DummyConnector<T>
+{
+}
+#[cfg(feature = "dummy_connector")]
 impl<const T: u8>
     services::ConnectorIntegration<
         api::PostAuthentication,

crates/router/src/types/api/authentication.rs

@@ -10,6 +10,9 @@ use crate::core::errors;
 #[derive(Debug, Clone)]
 pub struct PreAuthentication;
 
+#[derive(Debug, Clone)]
+pub struct PreAuthenticationVersionCall;
+
 #[derive(Debug, Clone)]
 pub struct Authentication;
 
@@ -94,6 +97,15 @@ pub trait ConnectorPreAuthentication:
 {
 }
 
+pub trait ConnectorPreAuthenticationVersionCall:
+    services::ConnectorIntegration<
+    PreAuthenticationVersionCall,
+    types::authentication::PreAuthNRequestData,
+    types::authentication::AuthenticationResponseData,
+>
+{
+}
+
 pub trait ConnectorPostAuthentication:
     services::ConnectorIntegration<
     PostAuthentication,
@@ -107,6 +119,7 @@ pub trait ExternalAuthentication:
     super::ConnectorCommon
     + ConnectorAuthentication
     + ConnectorPreAuthentication
+    + ConnectorPreAuthenticationVersionCall
     + ConnectorPostAuthentication
 {
 }

crates/router/src/types/authentication.rs

@@ -125,6 +125,9 @@ pub struct ConnectorPostAuthenticationRequestData {
 pub type PreAuthNRouterData =
     RouterData<api::PreAuthentication, PreAuthNRequestData, AuthenticationResponseData>;
 
+pub type PreAuthNVersionCallRouterData =
+    RouterData<api::PreAuthenticationVersionCall, PreAuthNRequestData, AuthenticationResponseData>;
+
 pub type ConnectorAuthenticationRouterData =
     RouterData<api::Authentication, ConnectorAuthenticationRequestData, AuthenticationResponseData>;