[taler-wallet-core] branch master updated: wallet-core: testing request for reserve history

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dold pushed a commit to branch master
in repository wallet-core.

The following commit(s) were added to refs/heads/master by this push:
     new 2339438e4 wallet-core: testing request for reserve history
2339438e4 is described below

commit 2339438e4892dd3afc11538f45442a714ab5732f
Author: Florian Dold <florian@dold.me>
AuthorDate: Fri May 10 18:23:37 2024 +0200

    wallet-core: testing request for reserve history
---
 packages/taler-util/src/taler-crypto.ts            | 17 ++++++-----
 packages/taler-util/src/wallet-types.ts            | 12 ++++++++
 .../src/crypto/cryptoImplementation.ts             | 35 ++++++++++++++++++++++
 packages/taler-wallet-core/src/deposits.ts         |  2 +-
 packages/taler-wallet-core/src/wallet-api-types.ts |  8 +++++
 packages/taler-wallet-core/src/wallet.ts           | 35 +++++++++++++++++++++-
 6 files changed, 99 insertions(+), 10 deletions(-)

diff --git a/packages/taler-util/src/taler-crypto.ts 
b/packages/taler-util/src/taler-crypto.ts
index e587773e2..950161b10 100644
--- a/packages/taler-util/src/taler-crypto.ts
+++ b/packages/taler-util/src/taler-crypto.ts
@@ -21,23 +21,23 @@
 /**
  * Imports.
  */
-import * as nacl from "./nacl-fast.js";
-import { hmacSha256, hmacSha512 } from "./kdf.js";
 import bigint from "big-integer";
+import * as fflate from "fflate";
+import { AmountLike, Amounts } from "./amounts.js";
 import * as argon2 from "./argon2.js";
+import { canonicalJson } from "./helpers.js";
+import { hmacSha256, hmacSha512 } from "./kdf.js";
+import { Logger } from "./logging.js";
+import * as nacl from "./nacl-fast.js";
+import { secretbox } from "./nacl-fast.js";
 import {
   CoinEnvelope,
   CoinPublicKeyString,
-  DenominationPubKey,
   DenomKeyType,
+  DenominationPubKey,
   HashCodeString,
 } from "./taler-types.js";
-import { Logger } from "./logging.js";
-import { secretbox } from "./nacl-fast.js";
-import * as fflate from "fflate";
-import { canonicalJson } from "./helpers.js";
 import { TalerProtocolDuration, TalerProtocolTimestamp } from "./time.js";
-import { AmountLike, Amounts } from "./amounts.js";
 
 export type Flavor<T, FlavorT extends string> = T & {
   _flavor?: `taler.${FlavorT}`;
@@ -974,6 +974,7 @@ export function hashWire(paytoUri: string, salt: string): 
string {
 export enum TalerSignaturePurpose {
   MERCHANT_TRACK_TRANSACTION = 1103,
   WALLET_RESERVE_WITHDRAW = 1200,
+  WALLET_RESERVE_HISTORY = 1208,
   WALLET_COIN_DEPOSIT = 1201,
   GLOBAL_FEES = 1022,
   MASTER_DENOMINATION_KEY_VALIDITY = 1025,
diff --git a/packages/taler-util/src/wallet-types.ts 
b/packages/taler-util/src/wallet-types.ts
index ec6cb6f58..b9fd24754 100644
--- a/packages/taler-util/src/wallet-types.ts
+++ b/packages/taler-util/src/wallet-types.ts
@@ -3010,6 +3010,18 @@ export interface TestingWaitTransactionRequest {
   txState: TransactionState;
 }
 
+export interface TestingGetReserveHistoryRequest {
+  reservePub: string;
+  exchangeBaseUrl: string;
+}
+
+export const codecForTestingGetReserveHistoryRequest =
+  (): Codec<TestingGetReserveHistoryRequest> =>
+    buildCodecForObject<TestingGetReserveHistoryRequest>()
+      .property("reservePub", codecForString())
+      .property("exchangeBaseUrl", codecForString())
+      .build("TestingGetReserveHistoryRequest");
+
 export interface TestingGetDenomStatsRequest {
   exchangeBaseUrl: string;
 }
diff --git a/packages/taler-wallet-core/src/crypto/cryptoImplementation.ts 
b/packages/taler-wallet-core/src/crypto/cryptoImplementation.ts
index 0745d70c4..2a2958a71 100644
--- a/packages/taler-wallet-core/src/crypto/cryptoImplementation.ts
+++ b/packages/taler-wallet-core/src/crypto/cryptoImplementation.ts
@@ -214,6 +214,10 @@ export interface TalerCryptoInterface {
 
   signPurseCreation(req: SignPurseCreationRequest): 
Promise<EddsaSigningResult>;
 
+  signReserveHistoryReq(
+    req: SignReserveHistoryReqRequest,
+  ): Promise<SignReserveHistoryReqResponse>;
+
   signPurseDeposits(
     req: SignPurseDepositsRequest,
   ): Promise<SignPurseDepositsResponse>;
@@ -438,6 +442,11 @@ export const nullCrypto: TalerCryptoInterface = {
   ): Promise<SignCoinHistoryResponse> {
     throw new Error("Function not implemented.");
   },
+  signReserveHistoryReq: function (
+    req: SignReserveHistoryReqRequest,
+  ): Promise<SignReserveHistoryReqResponse> {
+    throw new Error("Function not implemented.");
+  },
 };
 
 export type WithArg<X> = X extends (req: infer T) => infer R
@@ -475,6 +484,15 @@ export interface SignPurseCreationRequest {
   minAge: number;
 }
 
+export interface SignReserveHistoryReqRequest {
+  reservePriv: string;
+  startOffset: number;
+}
+
+export interface SignReserveHistoryReqResponse {
+  sig: string;
+}
+
 export interface SpendCoinDetails {
   coinPub: string;
   coinPriv: string;
@@ -1730,6 +1748,23 @@ export const nativeCryptoR: TalerCryptoInterfaceR = {
       sig: sigResp.sig,
     };
   },
+  async signReserveHistoryReq(
+    tci: TalerCryptoInterfaceR,
+    req: SignReserveHistoryReqRequest,
+  ): Promise<SignReserveHistoryReqResponse> {
+    const reserveHistoryBlob = buildSigPS(
+      TalerSignaturePurpose.WALLET_RESERVE_HISTORY,
+    )
+      .put(bufferForUint64(req.startOffset))
+      .build();
+    const sigResp = await tci.eddsaSign(tci, {
+      msg: encodeCrock(reserveHistoryBlob),
+      priv: req.reservePriv,
+    });
+    return {
+      sig: sigResp.sig,
+    };
+  },
 };
 
 export interface EddsaSignRequest {
diff --git a/packages/taler-wallet-core/src/deposits.ts 
b/packages/taler-wallet-core/src/deposits.ts
index dbba55247..c4cd98d73 100644
--- a/packages/taler-wallet-core/src/deposits.ts
+++ b/packages/taler-wallet-core/src/deposits.ts
@@ -776,7 +776,7 @@ async function processDepositGroupPendingTrack(
       { storeNames: ["coins"] },
       async (tx) => {
         const coinRecord = await tx.coins.get(coinPub);
-        checkDbInvariant(!!coinRecord);
+        checkDbInvariant(!!coinRecord, `coin ${coinPub} not found in DB`);
         return coinRecord.exchangeBaseUrl;
       },
     );
diff --git a/packages/taler-wallet-core/src/wallet-api-types.ts 
b/packages/taler-wallet-core/src/wallet-api-types.ts
index ed882708c..9a8ea8470 100644
--- a/packages/taler-wallet-core/src/wallet-api-types.ts
+++ b/packages/taler-wallet-core/src/wallet-api-types.ts
@@ -270,6 +270,7 @@ export enum WalletApiOperation {
   TestingListTaskForTransaction = "testingListTasksForTransaction",
   TestingGetDenomStats = "testingGetDenomStats",
   TestingPing = "testingPing",
+  TestingGetReserveHistory = "testingGetReserveHistory",
 }
 
 // group: Initialization
@@ -1187,6 +1188,12 @@ export type TestingPingOp = {
   response: EmptyObject;
 };
 
+export type TestingGetReserveHistoryOp = {
+  op: WalletApiOperation.TestingGetReserveHistory;
+  request: EmptyObject;
+  response: any;
+};
+
 /**
  * Get stats about an exchange denomination.
  */
@@ -1329,6 +1336,7 @@ export type WalletOperations = {
   [WalletApiOperation.PrepareBankIntegratedWithdrawal]: 
PrepareBankIntegratedWithdrawalOp;
   [WalletApiOperation.ConfirmWithdrawal]: ConfirmWithdrawalOp;
   [WalletApiOperation.CanonicalizeBaseUrl]: CanonicalizeBaseUrlOp;
+  [WalletApiOperation.TestingGetReserveHistory]: TestingGetReserveHistoryOp;
 };
 
 export type WalletCoreRequestType<
diff --git a/packages/taler-wallet-core/src/wallet.ts 
b/packages/taler-wallet-core/src/wallet.ts
index ea47ffad7..fe03dbf62 100644
--- a/packages/taler-wallet-core/src/wallet.ts
+++ b/packages/taler-wallet-core/src/wallet.ts
@@ -134,6 +134,7 @@ import {
   codecForSuspendTransaction,
   codecForTestPayArgs,
   codecForTestingGetDenomStatsRequest,
+  codecForTestingGetReserveHistoryRequest,
   codecForTestingListTasksForTransactionRequest,
   codecForTestingSetTimetravelRequest,
   codecForTransactionByIdRequest,
@@ -154,7 +155,10 @@ import {
   setDangerousTimetravel,
   validateIban,
 } from "@gnu-taler/taler-util";
-import type { HttpRequestLibrary } from "@gnu-taler/taler-util/http";
+import {
+  readSuccessResponseJsonOrThrow,
+  type HttpRequestLibrary,
+} from "@gnu-taler/taler-util/http";
 import {
   getUserAttentions,
   getUserAttentionsUnreadCount,
@@ -909,6 +913,35 @@ async function dispatchRequestInternal(
         restrictAge: req.restrictAge,
       });
     }
+    case WalletApiOperation.TestingGetReserveHistory: {
+      const req = codecForTestingGetReserveHistoryRequest().decode(payload);
+      const reserve = await wex.db.runReadOnlyTx(
+        { storeNames: ["reserves"] },
+        async (tx) => {
+          return tx.reserves.indexes.byReservePub.get(req.reservePub);
+        },
+      );
+      if (!reserve) {
+        throw Error("no reserve pub found");
+      }
+      const sigResp = await wex.cryptoApi.signReserveHistoryReq({
+        reservePriv: reserve.reservePriv,
+        startOffset: 0,
+      });
+      const exchangeBaseUrl = req.exchangeBaseUrl;
+      const url = new URL(
+        `reserves/${req.reservePub}/history`,
+        exchangeBaseUrl,
+      );
+      const resp = await wex.http.fetch(url.href, {
+        headers: { ["Taler-Reserve-History-Signature"]: sigResp.sig },
+      });
+      const historyJson = await readSuccessResponseJsonOrThrow(
+        resp,
+        codecForAny(),
+      );
+      return historyJson;
+    }
     case WalletApiOperation.AcceptManualWithdrawal: {
       const req = codecForAcceptManualWithdrawalRequest().decode(payload);
       const res = await createManualWithdrawal(wex, {

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