/
data.rs
203 lines (179 loc) · 6.06 KB
/
data.rs
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use axum::{
extract,
routing::{get, post},
Json,
};
#[cfg(feature = "middleware")]
use axum::middleware;
use error_stack::ResultExt;
use masking::ExposeInterface;
use crate::{
app::AppState,
crypto::{aes::GcmAes256, sha::Sha512, Encode},
error::{self, LogReport},
storage::{HashInterface, LockerInterface, MerchantInterface},
};
#[cfg(feature = "middleware")]
use crate::middleware as custom_middleware;
mod transformers;
pub mod types;
///
/// Function for creating the server that is specifically handling the cards api
///
pub fn serve(#[cfg(feature = "middleware")] state: AppState) -> axum::Router<AppState> {
let router = axum::Router::new()
.route("/add", post(add_card))
.route("/delete", post(delete_card))
.route("/retrieve", get(retrieve_card));
#[cfg(feature = "middleware")]
{
router.layer(middleware::from_fn_with_state(
state,
custom_middleware::middleware,
))
}
#[cfg(not(feature = "middleware"))]
router
}
/// `/data/add` handling the requirement of storing cards
pub async fn add_card(
extract::State(state): extract::State<AppState>,
Json(request): Json<types::StoreCardRequest>,
) -> Result<Json<types::StoreCardResponse>, error::ApiError> {
let master_encryption = GcmAes256::new(state.config.secrets.master_key);
let merchant = state
.db
.find_or_create_by_merchant_id(
request.merchant_id.clone(),
state.config.secrets.tenant.clone(),
&master_encryption,
)
.await
.change_context(error::ApiError::StoreDataFailed)
.report_unwrap()?;
let merchant_dek = GcmAes256::new(merchant.enc_key.expose());
let hash_data = serde_json::to_vec(&request.data)
.change_context(error::ApiError::StoreDataFailed)
.and_then(|data| {
(Sha512)
.encode(data)
.change_context(error::ApiError::StoreDataFailed)
})
.report_unwrap()?;
let optional_hash_table = state
.db
.find_by_data_hash(hash_data.clone())
.await
.change_context(error::ApiError::StoreDataFailed)
.report_unwrap()?;
let output = match optional_hash_table {
Some(hash_table) => {
let stored_data = state
.db
.find_by_hash_id_merchant_id_customer_id(
hash_table.hash_id.to_string(),
state.config.secrets.tenant.to_string(),
request.merchant_id.to_string(),
request.merchant_customer_id.to_string(),
&merchant_dek,
)
.await
.change_context(error::ApiError::StoreDataFailed)
.report_unwrap()?;
match stored_data {
Some(data) => data,
None => state
.db
.insert_or_get_from_locker(
(request, state.config.secrets.tenant, hash_table.hash_id).try_into()?,
&merchant_dek,
)
.await
.change_context(error::ApiError::StoreDataFailed)
.report_unwrap()?,
}
}
None => {
let hash_table = state
.db
.insert_hash(hash_data)
.await
.change_context(error::ApiError::StoreDataFailed)
.report_unwrap()?;
state
.db
.insert_or_get_from_locker(
(request, state.config.secrets.tenant, hash_table.hash_id).try_into()?,
&merchant_dek,
)
.await
.change_context(error::ApiError::StoreDataFailed)
.report_unwrap()?
}
};
Ok(Json(output.into()))
}
/// `/data/delete` handling the requirement of deleting cards
pub async fn delete_card(
extract::State(state): extract::State<AppState>,
Json(request): Json<types::DeleteCardRequest>,
) -> Result<Json<types::DeleteCardResponse>, error::ApiError> {
let master_key = GcmAes256::new(state.config.secrets.master_key.clone());
let _merchant = state
.db
.find_by_merchant_id(
request.merchant_id.clone(),
state.config.secrets.tenant.clone(),
&master_key,
)
.await
.change_context(error::ApiError::DeleteDataFailed)
.report_unwrap()?;
let delete_status = state
.db
.delete_from_locker(
request.card_reference.into(),
state.config.secrets.tenant,
request.merchant_id,
request.merchant_customer_id,
)
.await
.change_context(error::ApiError::DeleteDataFailed)
.report_unwrap()?;
Ok(Json(types::DeleteCardResponse {
status: delete_status.to_string(),
error_message: None,
error_code: None,
}))
}
/// `/data/retrieve` handling the requirement of retrieving cards
pub async fn retrieve_card(
extract::State(state): extract::State<AppState>,
Json(request): Json<types::RetrieveCardRequest>,
) -> Result<Json<types::RetrieveCardResponse>, error::ApiError> {
let master_key = GcmAes256::new(state.config.secrets.master_key.clone());
let merchant = state
.db
.find_by_merchant_id(
request.merchant_id.clone(),
state.config.secrets.tenant.clone(),
&master_key,
)
.await
.change_context(error::ApiError::DeleteDataFailed)
.report_unwrap()?;
let merchant_dek = GcmAes256::new(merchant.enc_key.expose());
let card = state
.db
.find_by_locker_id_merchant_id_customer_id(
request.card_reference.into(),
state.config.secrets.tenant.clone(),
request.merchant_id,
request.merchant_customer_id,
&merchant_dek,
)
.await
.change_context(error::ApiError::DeleteDataFailed)
.report_unwrap()?;
Ok(Json(card.try_into()?))
}