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feat(core): add core functions for external authentication (#3969)

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Co-authored-by: hyperswitch-bot[bot] <148525504+hyperswitch-bot[bot]@users.noreply.github.com>
Co-authored-by: sai-harsha-vardhan <harsha111hero@gmail.com>
Co-authored-by: Sai Harsha Vardhan <56996463+sai-harsha-vardhan@users.noreply.github.com>
This commit is contained in:
Hrithikesh
2024-03-08 19:16:35 +05:30
committed by GitHub
parent ba9d465483
commit 897e264ad9
24 changed files with 766 additions and 5 deletions
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225
crates/router/src/core/authentication.rs
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@ -1 +1,226 @@
pub(crate) mod utils;
pub mod transformers;
pub mod types;
use api_models::payments;
use common_enums::Currency;
use common_utils::{errors::CustomResult, ext_traits::ValueExt};
use error_stack::ResultExt;
use masking::PeekInterface;
use super::errors;
use crate::{
core::{errors::ApiErrorResponse, payments as payments_core},
routes::AppState,
types::{self as core_types, api, authentication::AuthenticationResponseData, storage},
utils::OptionExt,
};
#[allow(clippy::too_many_arguments)]
pub async fn perform_authentication(
state: &AppState,
authentication_connector: String,
payment_method_data: payments::PaymentMethodData,
payment_method: common_enums::PaymentMethod,
billing_address: api_models::payments::Address,
shipping_address: Option<api_models::payments::Address>,
browser_details: Option<core_types::BrowserInformation>,
business_profile: core_types::storage::BusinessProfile,
merchant_connector_account: payments_core::helpers::MerchantConnectorAccountType,
amount: Option<i64>,
currency: Option<Currency>,
message_category: api::authentication::MessageCategory,
device_channel: payments::DeviceChannel,
authentication_data: (types::AuthenticationData, storage::Authentication),
return_url: Option<String>,
sdk_information: Option<payments::SdkInformation>,
threeds_method_comp_ind: api_models::payments::ThreeDsCompletionIndicator,
email: Option<common_utils::pii::Email>,
) -> CustomResult<core_types::api::authentication::AuthenticationResponse, ApiErrorResponse> {
let router_data = transformers::construct_authentication_router_data(
authentication_connector.clone(),
payment_method_data,
payment_method,
billing_address,
shipping_address,
browser_details,
amount,
currency,
message_category,
device_channel,
business_profile,
merchant_connector_account,
authentication_data.clone(),
return_url,
sdk_information,
threeds_method_comp_ind,
email,
)?;
let response =
utils::do_auth_connector_call(state, authentication_connector.clone(), router_data).await?;
let (_authentication, _authentication_data) =
utils::update_trackers(state, response.clone(), authentication_data.1, None, None).await?;
let authentication_response =
response
.response
.map_err(|err| ApiErrorResponse::ExternalConnectorError {
code: err.code,
message: err.message,
connector: authentication_connector,
status_code: err.status_code,
reason: err.reason,
})?;
match authentication_response {
AuthenticationResponseData::AuthNResponse {
authn_flow_type,
trans_status,
..
} => Ok(match authn_flow_type {
core_types::authentication::AuthNFlowType::Challenge(challenge_params) => {
core_types::api::AuthenticationResponse {
trans_status,
acs_url: challenge_params.acs_url,
challenge_request: challenge_params.challenge_request,
acs_reference_number: challenge_params.acs_reference_number,
acs_trans_id: challenge_params.acs_trans_id,
three_dsserver_trans_id: challenge_params.three_dsserver_trans_id,
acs_signed_content: challenge_params.acs_signed_content,
}
}
core_types::authentication::AuthNFlowType::Frictionless => {
core_types::api::AuthenticationResponse {
trans_status,
acs_url: None,
challenge_request: None,
acs_reference_number: None,
acs_trans_id: None,
three_dsserver_trans_id: None,
acs_signed_content: None,
}
}
}),
_ => Err(errors::ApiErrorResponse::InternalServerError.into())
.attach_printable("unexpected response in authentication flow")?,
}
}
pub async fn perform_post_authentication<F: Clone + Send>(
state: &AppState,
authentication_connector: String,
business_profile: core_types::storage::BusinessProfile,
merchant_connector_account: payments_core::helpers::MerchantConnectorAccountType,
authentication_flow_input: types::PostAuthenthenticationFlowInput<'_, F>,
) -> CustomResult<(), ApiErrorResponse> {
match authentication_flow_input {
types::PostAuthenthenticationFlowInput::PaymentAuthNFlow {
payment_data,
authentication_data: (authentication, authentication_data),
should_continue_confirm_transaction,
} => {
// let (auth, authentication_data) = authentication;
let updated_authentication =
if !authentication.authentication_status.is_terminal_status() {
let router_data = transformers::construct_post_authentication_router_data(
authentication_connector.clone(),
business_profile,
merchant_connector_account,
authentication_data,
)?;
let router_data =
utils::do_auth_connector_call(state, authentication_connector, router_data)
.await?;
let (updated_authentication, updated_authentication_data) =
utils::update_trackers(
state,
router_data,
authentication,
payment_data.token.clone(),
None,
)
.await?;
payment_data.authentication = Some((
updated_authentication.clone(),
updated_authentication_data.unwrap_or_default(),
));
updated_authentication
} else {
authentication
};
//If authentication is not successful, skip the payment connector flows and mark the payment as failure
if !(updated_authentication.authentication_status
== api_models::enums::AuthenticationStatus::Success)
{
*should_continue_confirm_transaction = false;
}
}
types::PostAuthenthenticationFlowInput::PaymentMethodAuthNFlow { other_fields: _ } => {
// todo!("Payment method post authN operation");
}
}
Ok(())
}
pub async fn perform_pre_authentication<F: Clone + Send>(
state: &AppState,
authentication_connector_name: String,
authentication_flow_input: types::PreAuthenthenticationFlowInput<'_, F>,
business_profile: &core_types::storage::BusinessProfile,
three_ds_connector_account: payments_core::helpers::MerchantConnectorAccountType,
payment_connector_account: payments_core::helpers::MerchantConnectorAccountType,
) -> CustomResult<(), ApiErrorResponse> {
let authentication = utils::create_new_authentication(
state,
business_profile.merchant_id.clone(),
authentication_connector_name.clone(),
)
.await?;
match authentication_flow_input {
types::PreAuthenthenticationFlowInput::PaymentAuthNFlow {
payment_data,
should_continue_confirm_transaction,
card_number,
} => {
let router_data = 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?;
let acquirer_details: types::AcquirerDetails = payment_connector_account
.get_metadata()
.get_required_value("merchant_connector_account.metadata")?
.peek()
.clone()
.parse_value("AcquirerDetails")
.change_context(ApiErrorResponse::PreconditionFailed { message: "acquirer_bin and acquirer_merchant_id not found in Payment Connector's Metadata".to_string()})?;
let (authentication, authentication_data) = utils::update_trackers(
state,
router_data,
authentication,
payment_data.token.clone(),
Some(acquirer_details),
)
.await?;
if authentication_data
.as_ref()
.is_some_and(|authentication_data| authentication_data.is_separate_authn_required())
{
*should_continue_confirm_transaction = false;
}
payment_data.authentication =
Some((authentication, authentication_data.unwrap_or_default()));
}
types::PreAuthenthenticationFlowInput::PaymentMethodAuthNFlow {
card_number: _,
other_fields: _,
} => {
// todo!("Payment method authN operation");
}
};
Ok(())
}