Added Albedo wallet (#172)

* In progress

* Albedo wallet added

* Clarify changelog update

CHANGELOG.md

@@ -3,7 +3,8 @@
 - [KeyManager] Added Trezor wallet.
 - [KeyManager] Only sign SEP-10 auth transactions with seq number 0.
 - [DataProvider] Fix `watchPayments` stopper.
-- [KeyManager] Added Lyra wallet.
+- [KeyManager] Added Lyra wallet for key management.
+- [KeyManager] Added Albedo wallet for key management.
 
 ## [v0.1.0-rc.1](https://github.com/stellar/js-stellar-wallets/compare/v0.0.9-rc.1...v0.1.0-rc.1)
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@stellar/wallet-sdk",
-  "version": "0.1.0-rc.10",
+  "version": "0.1.0-rc.11",
   "description": "Libraries to help you write Stellar-enabled wallets in Javascript",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
@@ -78,6 +78,7 @@
     "webpack-cli": "^3.3.10"
   },
   "dependencies": {
+    "@albedo-link/intent": "^0.9.2",
     "@ledgerhq/hw-app-str": "^4.48.0",
     "@ledgerhq/hw-transport-u2f": "^4.48.0",
     "@stellar/lyra-api": "^1.0.0-alpha.2",

src/KeyManager.ts

@@ -1,5 +1,6 @@
 import StellarSdk, { Transaction } from "stellar-sdk";
 
+import { albedoHandler } from "./keyTypeHandlers/albedo";
 import { ledgerHandler } from "./keyTypeHandlers/ledger";
 import { lyraHandler } from "./keyTypeHandlers/lyra";
 import { plaintextKeyHandler } from "./keyTypeHandlers/plaintextKey";
@@ -86,6 +87,7 @@ export class KeyManager {
   constructor(params: KeyManagerParams) {
     this.encrypterMap = {};
     this.keyHandlerMap = {
+      [KeyType.albedo]: albedoHandler,
       [KeyType.ledger]: ledgerHandler,
       [KeyType.lyra]: lyraHandler,
       [KeyType.plaintextKey]: plaintextKeyHandler,

src/constants/keys.ts

@@ -1,4 +1,5 @@
 export enum KeyType {
+  albedo = "albedo",
   ledger = "ledger",
   lyra = "lyra",
   plaintextKey = "plaintextKey",

src/keyTypeHandlers/albedo.ts

@@ -0,0 +1,42 @@
+import albedo from "@albedo-link/intent";
+import { Networks, Transaction, TransactionBuilder } from "stellar-sdk";
+
+import { HandlerSignTransactionParams, KeyTypeHandler } from "../types";
+
+import { KeyType } from "../constants/keys";
+
+export const albedoHandler: KeyTypeHandler = {
+  keyType: KeyType.albedo,
+  async signTransaction(params: HandlerSignTransactionParams) {
+    const { transaction, key } = params;
+
+    if (key.privateKey !== "") {
+      throw new Error(
+        `Non-ledger key sent to ledger handler: ${JSON.stringify(
+          key.publicKey,
+        )}`,
+      );
+    }
+
+    try {
+      const xdr = transaction.toXDR();
+      const response = await albedo.tx({ xdr });
+
+      if (!response.signed_envelope_xdr) {
+        throw new Error("We couldn’t sign the transaction with Albedo.");
+      }
+
+      // fromXDR() returns type "Transaction | FeeBumpTransaction" and
+      // signTransaction() doesn't like "| FeeBumpTransaction" type, so casting
+      // to "Transaction" type.
+      return TransactionBuilder.fromXDR(
+        response.signed_envelope_xdr,
+        Networks.PUBLIC,
+      ) as Transaction;
+    } catch (error) {
+      throw new Error(
+        `We couldn’t sign the transaction with Albedo. ${error.toString()}.`,
+      );
+    }
+  },
+};

src/types/modules.d.ts

@@ -3,3 +3,4 @@ declare module "scrypt-async";
 declare module "jest-mock-random";
 // @types/trezor-connect doesn't have stellarSignTransaction()
 declare module "trezor-connect";
+declare module "@albedo-link/intent";

yarn.lock

@@ -2,6 +2,11 @@
 # yarn lockfile v1
 
 
+"@albedo-link/intent@^0.9.2":
+  version "0.9.2"
+  resolved "https://registry.yarnpkg.com/@albedo-link/intent/-/intent-0.9.2.tgz#64d198a3a8fb4ed70ab17dee555f2fe59f5dcac6"
+  integrity sha512-toETcSL3seYeNvP9mxUdzpJ/7UxekF6+XrqnFWrlT7Khwne/ufEE2+kT7Zqc4Zp2awNZZtlyKzTdLEud4c+uEw==
+
 "@babel/code-frame@^7.0.0":
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.0.0.tgz#06e2ab19bdb535385559aabb5ba59729482800f8"