140 lines
3.6 KiB
TypeScript
140 lines
3.6 KiB
TypeScript
/*
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This file is part of TALER
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(C) 2015 GNUnet e.V.
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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TALER; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/>
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*/
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"use strict";
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/**
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* Declarations and helpers for
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* things that are stored in the wallet's
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* database.
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* @module Db
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* @author Florian Dold
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*/
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namespace Db {
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export interface Mint {
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baseUrl: string;
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keys: Keys
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}
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export interface CoinWithDenom {
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coin: Coin;
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denom: Denomination;
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}
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export interface Keys {
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denoms: Denomination[];
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}
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export interface Denomination {
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value: AmountJson;
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denom_pub: string;
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fee_withdraw: AmountJson;
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fee_deposit: AmountJson;
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}
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export interface PreCoin {
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coinPub: string;
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coinPriv: string;
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reservePub: string;
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denomPub: string;
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blindingKey: string;
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withdrawSig: string;
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coinEv: string;
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mintBaseUrl: string;
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coinValue: AmountJson;
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}
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export interface Coin {
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coinPub: string;
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coinPriv: string;
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denomPub: string;
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denomSig: string;
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currentAmount: AmountJson;
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mintBaseUrl: string;
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}
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}
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const DB_NAME = "taler";
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const DB_VERSION = 1;
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/**
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* Return a promise that resolves
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* to the taler wallet db.
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*/
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function openTalerDb(): Promise<IDBDatabase> {
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return new Promise((resolve, reject) => {
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let req = indexedDB.open(DB_NAME, DB_VERSION);
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req.onerror = (e) => {
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reject(e);
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};
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req.onsuccess = (e) => {
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resolve(req.result);
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};
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req.onupgradeneeded = (e) => {
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let db = req.result;
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console.log("DB: upgrade needed: oldVersion = " + e.oldVersion);
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switch (e.oldVersion) {
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case 0: // DB does not exist yet
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let mints = db.createObjectStore("mints", {keyPath: "baseUrl"});
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mints.createIndex("pubKey", "keys.master_public_key");
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db.createObjectStore("reserves", {keyPath: "reserve_pub"});
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db.createObjectStore("denoms", {keyPath: "denomPub"});
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let coins = db.createObjectStore("coins", {keyPath: "coinPub"});
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coins.createIndex("mintBaseUrl", "mintBaseUrl");
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db.createObjectStore("transactions", {keyPath: "contractHash"});
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db.createObjectStore("precoins",
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{keyPath: "coinPub", autoIncrement: true});
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break;
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}
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};
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});
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}
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function exportDb(db): Promise<any> {
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let dump = {
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name: db.name,
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version: db.version,
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stores: {}
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};
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return new Promise((resolve, reject) => {
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let tx = db.transaction(db.objectStoreNames);
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tx.addEventListener('complete', (e) => {
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resolve(dump);
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});
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for (let i = 0; i < db.objectStoreNames.length; i++) {
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let name = db.objectStoreNames[i];
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let storeDump = {};
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dump.stores[name] = storeDump;
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let store = tx.objectStore(name)
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.openCursor()
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.addEventListener('success', (e) => {
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let cursor = e.target.result;
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if (cursor) {
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storeDump[cursor.key] = cursor.value;
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cursor.continue();
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}
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});
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}
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});
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} |