[taler-wallet-core] branch master updated: model more backup provider errors

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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 4fdcaab6 model more backup provider errors
4fdcaab6 is described below

commit 4fdcaab6325289fd8525fc9e63c8c86b07131376
Author: Florian Dold <florian@dold.me>
AuthorDate: Wed May 12 14:16:01 2021 +0200

    model more backup provider errors
---
 packages/taler-util/src/backupTypes.ts             |  5 ++
 packages/taler-wallet-core/src/db.ts               | 39 ++++++++++++----
 .../src/operations/backup/export.ts                |  1 +
 .../src/operations/backup/index.ts                 | 54 ++++++++++++++++++----
 4 files changed, 81 insertions(+), 18 deletions(-)

diff --git a/packages/taler-util/src/backupTypes.ts 
b/packages/taler-util/src/backupTypes.ts
index 13ff7519..1980bfb4 100644
--- a/packages/taler-util/src/backupTypes.ts
+++ b/packages/taler-util/src/backupTypes.ts
@@ -304,6 +304,11 @@ export class BackupBackupProvider {
    * Proposal IDs for payments to this provider.
    */
   pay_proposal_ids: string[];
+
+  /**
+   * UIDs for adding this backup provider.
+   */
+  uids: OperationUid[];
 }
 
 /**
diff --git a/packages/taler-wallet-core/src/db.ts 
b/packages/taler-wallet-core/src/db.ts
index 22cbd16c..946e71e1 100644
--- a/packages/taler-wallet-core/src/db.ts
+++ b/packages/taler-wallet-core/src/db.ts
@@ -13,7 +13,22 @@ import {
   IDBKeyPath,
 } from "@gnu-taler/idb-bridge";
 import { Logger } from "./util/logging";
-import { AmountJson, AmountString, Auditor, CoinDepositPermission, 
ContractTerms, Duration, ExchangeSignKeyJson, InternationalizedString, 
MerchantInfo, Product, RefreshReason, ReserveTransaction, TalerErrorDetails, 
Timestamp } from "@gnu-taler/taler-util";
+import {
+  AmountJson,
+  AmountString,
+  Auditor,
+  CoinDepositPermission,
+  ContractTerms,
+  Duration,
+  ExchangeSignKeyJson,
+  InternationalizedString,
+  MerchantInfo,
+  Product,
+  RefreshReason,
+  ReserveTransaction,
+  TalerErrorDetails,
+  Timestamp,
+} from "@gnu-taler/taler-util";
 import { RetryInfo } from "./util/retries.js";
 import { PayCoinSelection } from "./util/coinSelection.js";
 
@@ -170,7 +185,6 @@ export function deleteTalerDatabase(idbFactory: 
IDBFactory): void {
   Database.deleteDatabase(idbFactory, TALER_DB_NAME);
 }
 
-
 export enum ReserveRecordStatus {
   /**
    * Reserve must be registered with the bank.
@@ -1269,14 +1283,12 @@ export interface WalletContractData {
   maxDepositFee: AmountJson;
 }
 
-
 export enum AbortStatus {
   None = "none",
   AbortRefund = "abort-refund",
   AbortFinished = "abort-finished",
 }
 
-
 /**
  * Record that stores status information about one purchase, starting from when
  * the customer accepts a proposal.  Includes refund status if applicable.
@@ -1316,7 +1328,7 @@ export interface PurchaseRecord {
 
   /**
    * Pending removals from pay coin selection.
-   * 
+   *
    * Used when a the pay coin selection needs to be changed
    * because a coin became known as double-spent or invalid,
    * but a new coin selection can't immediately be done, as
@@ -1548,6 +1560,12 @@ export enum BackupProviderStatus {
   Ready = "ready",
 }
 
+export interface BackupProviderTerms {
+  supportedProtocolVersion: string;
+  annualFee: AmountString;
+  storageLimitInMegabytes: number;
+}
+
 export interface BackupProviderRecord {
   baseUrl: string;
 
@@ -1556,11 +1574,7 @@ export interface BackupProviderRecord {
    * Might be unavailable in the DB in certain situations
    * (such as loading a recovery document).
    */
-  terms?: {
-    supportedProtocolVersion: string;
-    annualFee: AmountString;
-    storageLimitInMegabytes: number;
-  };
+  terms?: BackupProviderTerms;
 
   active: boolean;
 
@@ -1601,6 +1615,11 @@ export interface BackupProviderRecord {
    * Last error that occurred, if any.
    */
   lastError: TalerErrorDetails | undefined;
+
+  /**
+   * UIDs for the operation that added the backup provider.
+   */
+  uids: string[];
 }
 
 /**
diff --git a/packages/taler-wallet-core/src/operations/backup/export.ts 
b/packages/taler-wallet-core/src/operations/backup/export.ts
index 4ccaf8f4..70d249ab 100644
--- a/packages/taler-wallet-core/src/operations/backup/export.ts
+++ b/packages/taler-wallet-core/src/operations/backup/export.ts
@@ -191,6 +191,7 @@ export async function exportBackup(
           terms,
           base_url: canonicalizeBaseUrl(bp.baseUrl),
           pay_proposal_ids: bp.paymentProposalIds,
+          uids: bp.uids,
         });
       });
 
diff --git a/packages/taler-wallet-core/src/operations/backup/index.ts 
b/packages/taler-wallet-core/src/operations/backup/index.ts
index b4c1a6c9..110e7659 100644
--- a/packages/taler-wallet-core/src/operations/backup/index.ts
+++ b/packages/taler-wallet-core/src/operations/backup/index.ts
@@ -31,8 +31,12 @@ import {
   codecForAmountString,
   WalletBackupContentV1,
 } from "@gnu-taler/taler-util";
-import { TransactionHandle } from "../../util/query";
-import { BackupProviderRecord, ConfigRecord, Stores } from "../../db.js";
+import {
+  BackupProviderRecord,
+  BackupProviderTerms,
+  ConfigRecord,
+  Stores,
+} from "../../db.js";
 import { checkDbInvariant, checkLogicInvariant } from "../../util/invariants";
 import {
   bytesToString,
@@ -40,13 +44,13 @@ import {
   eddsaGetPublic,
   EddsaKeyPair,
   encodeCrock,
+  getRandomBytes,
   hash,
   rsaBlind,
   stringToBytes,
 } from "../../crypto/talerCrypto";
 import { canonicalizeBaseUrl, canonicalJson, j2s } from 
"@gnu-taler/taler-util";
 import {
-  durationAdd,
   durationFromSpec,
   getTimestampNow,
   Timestamp,
@@ -495,6 +499,7 @@ export async function addBackupProvider(
     baseUrl: canonUrl,
     lastError: undefined,
     retryInfo: initRetryInfo(false),
+    uids: [encodeCrock(getRandomBytes(32))],
   });
 }
 
@@ -513,14 +518,39 @@ export async function restoreFromRecoverySecret(): 
Promise<void> {}
 export interface ProviderInfo {
   active: boolean;
   syncProviderBaseUrl: string;
+  terms?: BackupProviderTerms;
+  /**
+   * Last communication issue with the provider.
+   */
   lastError?: TalerErrorDetails;
-  lastRemoteClock?: number;
-  lastBackupTimestamp?: Timestamp;
+  lastSuccessfulBackupTimestamp?: Timestamp;
+  lastAttemptedBackupTimestamp?: Timestamp;
   paymentProposalIds: string[];
+  backupProblem?: BackupProblem;
   paymentStatus: ProviderPaymentStatus;
 }
 
+export type BackupProblem =
+  | BackupUnreadableProblem
+  | BackupConflictingDeviceProblem;
+
+export interface BackupUnreadableProblem {
+  type: "backup-unreadable";
+}
+
+export interface BackupUnreadableProblem {
+  type: "backup-unreadable";
+}
+
+export interface BackupConflictingDeviceProblem {
+  type: "backup-conflicting-device";
+  otherDeviceId: string;
+  myDeviceId: string;
+  backupTimestamp: Timestamp;
+}
+
 export type ProviderPaymentStatus =
+  | ProviderPaymentTermsChanged
   | ProviderPaymentPaid
   | ProviderPaymentInsufficientBalance
   | ProviderPaymentUnpaid
@@ -529,7 +559,6 @@ export type ProviderPaymentStatus =
 export interface BackupInfo {
   walletRootPub: string;
   deviceId: string;
-  lastLocalClock: number;
   providers: ProviderInfo[];
 }
 
@@ -550,6 +579,7 @@ export enum ProviderPaymentType {
   Pending = "pending",
   InsufficientBalance = "insufficient-balance",
   Paid = "paid",
+  TermsChanged = "terms-changed",
 }
 
 export interface ProviderPaymentUnpaid {
@@ -569,6 +599,13 @@ export interface ProviderPaymentPaid {
   paidUntil: Timestamp;
 }
 
+export interface ProviderPaymentTermsChanged {
+  type: ProviderPaymentType.TermsChanged;
+  paidUntil: Timestamp;
+  oldTerms: BackupProviderTerms;
+  newTerms: BackupProviderTerms;
+}
+
 async function getProviderPaymentInfo(
   ws: InternalWalletState,
   provider: BackupProviderRecord,
@@ -623,15 +660,15 @@ export async function getBackupInfo(
     providers.push({
       active: x.active,
       syncProviderBaseUrl: x.baseUrl,
-      lastBackupTimestamp: x.lastBackupTimestamp,
+      lastSuccessfulBackupTimestamp: x.lastBackupTimestamp,
       paymentProposalIds: x.paymentProposalIds,
       lastError: x.lastError,
       paymentStatus: await getProviderPaymentInfo(ws, x),
+      terms: x.terms,
     });
   }
   return {
     deviceId: backupConfig.deviceId,
-    lastLocalClock: backupConfig.clocks[backupConfig.deviceId],
     walletRootPub: backupConfig.walletRootPub,
     providers,
   };
@@ -686,6 +723,7 @@ async function backupRecoveryTheirs(
             paymentProposalIds: [],
             retryInfo: initRetryInfo(false),
             lastError: undefined,
+            uids: [encodeCrock(getRandomBytes(32))],
           });
         }
       }

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