From 332745862e728dc5e79a424698b2736c4f2683bf Mon Sep 17 00:00:00 2001
From: Florian Dold <florian@dold.me>
Date: Mon, 14 Mar 2022 18:31:30 +0100
Subject: wallet: towards db-less benchmarking, some refactoring

---
 packages/taler-util/src/talerCrypto.ts | 16 ++++++++++++
 packages/taler-util/src/talerTypes.ts  | 46 ++++++++++++++++++++++++++++++++++
 packages/taler-util/src/time.ts        |  3 +++
 packages/taler-util/src/walletTypes.ts |  2 +-
 4 files changed, 66 insertions(+), 1 deletion(-)

(limited to 'packages/taler-util/src')

diff --git a/packages/taler-util/src/talerCrypto.ts b/packages/taler-util/src/talerCrypto.ts
index 358da9dac..4d6e73671 100644
--- a/packages/taler-util/src/talerCrypto.ts
+++ b/packages/taler-util/src/talerCrypto.ts
@@ -785,6 +785,22 @@ export function setupRefreshTransferPub(
   };
 }
 
+/**
+ * 
+ * @param paytoUri
+ * @param salt 16-byte salt 
+ * @returns 
+ */
+export function hashWire(paytoUri: string, salt: string): string {
+  const r = kdf(
+    64,
+    stringToBytes(paytoUri + "\0"),
+    decodeCrock(salt),
+    stringToBytes("merchant-wire-signature"),
+  );
+  return encodeCrock(r);
+}
+
 export enum TalerSignaturePurpose {
   MERCHANT_TRACK_TRANSACTION = 1103,
   WALLET_RESERVE_WITHDRAW = 1200,
diff --git a/packages/taler-util/src/talerTypes.ts b/packages/taler-util/src/talerTypes.ts
index b38f788af..4ccfffce0 100644
--- a/packages/taler-util/src/talerTypes.ts
+++ b/packages/taler-util/src/talerTypes.ts
@@ -951,6 +951,15 @@ export interface MerchantPayResponse {
   sig: string;
 }
 
+export interface ExchangeMeltRequest {
+  coin_pub: CoinPublicKeyString;
+  confirm_sig: EddsaSignatureString;
+  denom_pub_hash: HashCodeString;
+  denom_sig: UnblindedSignature;
+  rc: string;
+  value_with_fee: AmountString;
+}
+
 export interface ExchangeMeltResponse {
   /**
    * Which of the kappa indices does the client not have to reveal.
@@ -1710,3 +1719,40 @@ export interface ExchangeRefreshRevealRequest {
 
   link_sigs: EddsaSignatureString[];
 }
+
+export interface DepositSuccess {
+  // Optional base URL of the exchange for looking up wire transfers
+  // associated with this transaction.  If not given,
+  // the base URL is the same as the one used for this request.
+  // Can be used if the base URL for /transactions/ differs from that
+  // for /coins/, i.e. for load balancing.  Clients SHOULD
+  // respect the transaction_base_url if provided.  Any HTTP server
+  // belonging to an exchange MUST generate a 307 or 308 redirection
+  // to the correct base URL should a client uses the wrong base
+  // URL, or if the base URL has changed since the deposit.
+  transaction_base_url?: string;
+
+  // timestamp when the deposit was received by the exchange.
+  exchange_timestamp: Timestamp;
+
+  // the EdDSA signature of TALER_DepositConfirmationPS using a current
+  // signing key of the exchange affirming the successful
+  // deposit and that the exchange will transfer the funds after the refund
+  // deadline, or as soon as possible if the refund deadline is zero.
+  exchange_sig: string;
+
+  // public EdDSA key of the exchange that was used to
+  // generate the signature.
+  // Should match one of the exchange's signing keys from /keys.  It is given
+  // explicitly as the client might otherwise be confused by clock skew as to
+  // which signing key was used.
+  exchange_pub: string;
+}
+
+export const codecForDepositSuccess = (): Codec<DepositSuccess> =>
+  buildCodecForObject<DepositSuccess>()
+    .property("exchange_pub", codecForString())
+    .property("exchange_sig", codecForString())
+    .property("exchange_timestamp", codecForTimestamp)
+    .property("transaction_base_url", codecOptional(codecForString()))
+    .build("DepositSuccess");
diff --git a/packages/taler-util/src/time.ts b/packages/taler-util/src/time.ts
index 5fef0bf47..3b80b4ee0 100644
--- a/packages/taler-util/src/time.ts
+++ b/packages/taler-util/src/time.ts
@@ -78,6 +78,9 @@ export namespace Duration {
     return Math.ceil(d.d_ms / 1000 / 60 / 60 / 24 / 365);
   }
   export const fromSpec = durationFromSpec;
+  export function getForever(): Duration {
+    return { d_ms: "forever" };
+  }
 }
 
 export namespace Timestamp {
diff --git a/packages/taler-util/src/walletTypes.ts b/packages/taler-util/src/walletTypes.ts
index b8433e261..444fac154 100644
--- a/packages/taler-util/src/walletTypes.ts
+++ b/packages/taler-util/src/walletTypes.ts
@@ -458,7 +458,7 @@ export interface TalerErrorDetails {
   details: unknown;
 }
 
-export interface PlanchetCreationResult {
+export interface WithdrawalPlanchet {
   coinPub: string;
   coinPriv: string;
   reservePub: string;
-- 
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