Bogdan-Ștefan Neacşu
1ad97adc7c
* Replace expect with error * Move PersistentStorage in separate file * Add in-memory cred manager * Make wasm and mobile build * Unify wasm and mobile cred storage * Network defaults has mainnet default * Add network_details to SDK * Move BandwidthController in its own crate * Move out credential into lib crate * Remove nyxd arg in credential binary * Use acquire cred in sdk * Add example file, in sandbox * Mobile lock file * Update changelog * Clearer builder methods and more documentation for them * Sign only amount, without denom * Toggle credentials mode on when enabled
75 lines
2.4 KiB
Rust
75 lines
2.4 KiB
Rust
// Copyright 2022 - Nym Technologies SA <contact@nymtech.net>
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
use crate::models::CoconutCredential;
|
|
|
|
#[derive(Clone)]
|
|
pub struct CoconutCredentialManager {
|
|
connection_pool: sqlx::SqlitePool,
|
|
}
|
|
|
|
impl CoconutCredentialManager {
|
|
/// Creates new instance of the `CoconutCredentialManager` with the provided sqlite connection pool.
|
|
///
|
|
/// # Arguments
|
|
///
|
|
/// * `connection_pool`: database connection pool to use.
|
|
pub fn new(connection_pool: sqlx::SqlitePool) -> Self {
|
|
CoconutCredentialManager { connection_pool }
|
|
}
|
|
|
|
/// Inserts provided signature into the database.
|
|
///
|
|
/// # Arguments
|
|
///
|
|
/// * `voucher_value`: Plaintext bandwidth value of the credential.
|
|
/// * `voucher_info`: Plaintext information of the credential.
|
|
/// * `serial_number`: Base58 representation of the serial number attribute.
|
|
/// * `binding_number`: Base58 representation of the binding number attribute.
|
|
/// * `signature`: Coconut credential in the form of a signature.
|
|
pub async fn insert_coconut_credential(
|
|
&self,
|
|
voucher_value: String,
|
|
voucher_info: String,
|
|
serial_number: String,
|
|
binding_number: String,
|
|
signature: String,
|
|
epoch_id: String,
|
|
) -> Result<(), sqlx::Error> {
|
|
sqlx::query!(
|
|
"INSERT INTO coconut_credentials(voucher_value, voucher_info, serial_number, binding_number, signature, epoch_id, consumed) VALUES (?, ?, ?, ?, ?, ?, ?)",
|
|
voucher_value, voucher_info, serial_number, binding_number, signature, epoch_id, false
|
|
)
|
|
.execute(&self.connection_pool)
|
|
.await?;
|
|
Ok(())
|
|
}
|
|
|
|
/// Tries to retrieve one of the stored, unused credentials.
|
|
pub async fn get_next_coconut_credential(
|
|
&self,
|
|
) -> Result<Option<CoconutCredential>, sqlx::Error> {
|
|
sqlx::query_as!(
|
|
CoconutCredential,
|
|
"SELECT * FROM coconut_credentials WHERE NOT consumed"
|
|
)
|
|
.fetch_optional(&self.connection_pool)
|
|
.await
|
|
}
|
|
|
|
/// Consumes in the database the specified credential.
|
|
///
|
|
/// # Arguments
|
|
///
|
|
/// * `id`: Database id.
|
|
pub async fn consume_coconut_credential(&self, id: i64) -> Result<(), sqlx::Error> {
|
|
sqlx::query!(
|
|
"UPDATE coconut_credentials SET consumed = TRUE WHERE id = ?",
|
|
id
|
|
)
|
|
.execute(&self.connection_pool)
|
|
.await?;
|
|
Ok(())
|
|
}
|
|
}
|