From 84d5b5e5ef34f7289256c6fd301206cda19be694 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian@dold.me>
Date: Thu, 17 Dec 2020 12:21:03 +0100
Subject: export complete backup, derive planchets in withdrawal

---
 .../taler-wallet-core/src/operations/backup.ts     | 44 +++++++++++++++-------
 .../taler-wallet-core/src/operations/reserves.ts   |  1 +
 packages/taler-wallet-core/src/operations/tip.ts   |  8 ++--
 .../taler-wallet-core/src/operations/withdraw.ts   |  2 +
 4 files changed, 39 insertions(+), 16 deletions(-)

(limited to 'packages/taler-wallet-core/src/operations')

diff --git a/packages/taler-wallet-core/src/operations/backup.ts b/packages/taler-wallet-core/src/operations/backup.ts
index 1e5aa542d..f071b6d08 100644
--- a/packages/taler-wallet-core/src/operations/backup.ts
+++ b/packages/taler-wallet-core/src/operations/backup.ts
@@ -198,17 +198,17 @@ export async function exportBackup(
         const withdrawalGroups = (withdrawalGroupsByReserve[
           wg.reservePub
         ] ??= []);
-        // FIXME: finish!
-        // withdrawalGroups.push({
-        //   raw_withdrawal_amount: Amounts.stringify(wg.rawWithdrawalAmount),
-        //   selected_denoms: wg.denomsSel.selectedDenoms.map((x) => ({
-        //     count: x.count,
-        //     denom_pub_hash: x.denomPubHash,
-        //   })),
-        //   timestamp_start: wg.timestampStart,
-        //   timestamp_finish: wg.timestampFinish,
-        //   withdrawal_group_id: wg.withdrawalGroupId,
-        // });
+        withdrawalGroups.push({
+          raw_withdrawal_amount: Amounts.stringify(wg.rawWithdrawalAmount),
+          selected_denoms: wg.denomsSel.selectedDenoms.map((x) => ({
+            count: x.count,
+            denom_pub_hash: x.denomPubHash,
+          })),
+          timestamp_start: wg.timestampStart,
+          timestamp_finish: wg.timestampFinish,
+          withdrawal_group_id: wg.withdrawalGroupId,
+          secret_seed: wg.secretSeed
+        });
       });
 
       await tx.iter(Stores.reserves).forEach((reserve) => {
@@ -572,11 +572,29 @@ export async function encryptBackup(
   throw Error("not implemented");
 }
 
-export function importBackup(
+export async function importBackup(
   ws: InternalWalletState,
   backupRequest: BackupRequest,
 ): Promise<void> {
-  throw Error("not implemented");
+  await provideBackupState(ws);
+  return ws.db.runWithWriteTransaction(
+    [
+      Stores.config,
+      Stores.exchanges,
+      Stores.coins,
+      Stores.denominations,
+      Stores.purchases,
+      Stores.proposals,
+      Stores.refreshGroups,
+      Stores.backupProviders,
+      Stores.tips,
+      Stores.recoupGroups,
+      Stores.reserves,
+      Stores.withdrawalGroups,
+    ],
+    async (tx) => {
+
+    });
 }
 
 function deriveAccountKeyPair(
diff --git a/packages/taler-wallet-core/src/operations/reserves.ts b/packages/taler-wallet-core/src/operations/reserves.ts
index 95c38120c..4e4db1fc9 100644
--- a/packages/taler-wallet-core/src/operations/reserves.ts
+++ b/packages/taler-wallet-core/src/operations/reserves.ts
@@ -623,6 +623,7 @@ async function updateReserve(
           retryInfo: initRetryInfo(),
           lastError: undefined,
           denomsSel: denomSelectionInfoToState(denomSelInfo),
+          secretSeed: encodeCrock(getRandomBytes(64)),
         };
 
         newReserve.lastError = undefined;
diff --git a/packages/taler-wallet-core/src/operations/tip.ts b/packages/taler-wallet-core/src/operations/tip.ts
index f47f76623..f683999bc 100644
--- a/packages/taler-wallet-core/src/operations/tip.ts
+++ b/packages/taler-wallet-core/src/operations/tip.ts
@@ -48,7 +48,7 @@ import {
 } from "../util/http";
 import { URL } from "../util/url";
 import { Logger } from "../util/logging";
-import { checkDbInvariant } from "../util/invariants";
+import { checkDbInvariant, checkLogicInvariant } from "../util/invariants";
 import { TalerErrorCode } from "../TalerErrorCode";
 import { initRetryInfo, updateRetryInfoTimeout } from "../util/retries";
 import { j2s } from "../util/helpers";
@@ -221,13 +221,13 @@ async function processTipImpl(
       dh.denomPubHash,
     ]);
     checkDbInvariant(!!denom, "denomination should be in database");
-    denomForPlanchet[planchets.length] = denom;
     for (let i = 0; i < dh.count; i++) {
       const p = await ws.cryptoApi.createTipPlanchet({
-        denomPub: dh.denomPubHash,
+        denomPub: denom.denomPub,
         planchetIndex: planchets.length,
         secretSeed: tipRecord.secretSeed,
       });
+      denomForPlanchet[planchets.length] = denom;
       planchets.push(p);
       planchetsDetail.push({
         coin_ev: p.coinEv,
@@ -275,7 +275,9 @@ async function processTipImpl(
     const blindedSig = response.blind_sigs[i].blind_sig;
 
     const denom = denomForPlanchet[i];
+    checkLogicInvariant(!!denom);
     const planchet = planchets[i];
+    checkLogicInvariant(!!planchet);
 
     const denomSig = await ws.cryptoApi.rsaUnblind(
       blindedSig,
diff --git a/packages/taler-wallet-core/src/operations/withdraw.ts b/packages/taler-wallet-core/src/operations/withdraw.ts
index 758b80787..c2dfcd1c4 100644
--- a/packages/taler-wallet-core/src/operations/withdraw.ts
+++ b/packages/taler-wallet-core/src/operations/withdraw.ts
@@ -284,6 +284,8 @@ async function processPlanchetGenerate(
       reservePriv: reserve.reservePriv,
       reservePub: reserve.reservePub,
       value: denom.value,
+      coinIndex: coinIdx,
+      secretSeed: withdrawalGroup.secretSeed,
     });
     const newPlanchet: PlanchetRecord = {
       blindingKey: r.blindingKey,
-- 
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