launchpad-ledger: Add ledger demo and wallet

packages/launchpad-ledger/src/index.ts

@@ -1 +1,2 @@
 export { LaunchpadLedger } from "./launchpadledger";
+export { LedgerWallet } from "./ledgerwallet";

packages/launchpad-ledger/src/ledger.demo.ts

@@ -0,0 +1,38 @@
+import { toHex, toUtf8 } from "@cosmjs/encoding";
+
+import { LedgerWallet } from "./ledgerwallet";
+
+declare const window: any;
+declare const document: any;
+
+const ledgerWallet = new LedgerWallet({ testModeAllowed: true });
+
+window.getAccounts = async function getAccounts(): Promise<void> {
+  const addressInput = document.getElementById("address");
+  const accountsDiv = document.getElementById("accounts");
+  accountsDiv.textContent = "Loading...";
+
+  try {
+    const accounts = await ledgerWallet.getAccounts();
+    const prettyAccounts = accounts.map((account) => ({ ...account, pubkey: toHex(account.pubkey) }));
+    accountsDiv.textContent = JSON.stringify(prettyAccounts, null, "\t");
+    addressInput.value = accounts[0].address;
+  } catch (error) {
+    accountsDiv.textContent = error;
+  }
+};
+
+window.sign = async function sign(): Promise<void> {
+  const signatureDiv = document.getElementById("signature");
+  signatureDiv.textContent = "Loading...";
+
+  try {
+    const address = document.getElementById("address").value;
+    const rawMessage = document.getElementById("message").textContent;
+    const message = JSON.stringify(JSON.parse(rawMessage));
+    const signature = await ledgerWallet.sign(address, toUtf8(message));
+    signatureDiv.textContent = JSON.stringify(signature, null, "\t");
+  } catch (error) {
+    signatureDiv.textContent = error;
+  }
+};

packages/launchpad-ledger/src/ledgerwallet.ts

@@ -0,0 +1,45 @@
+import { AccountData, encodeSecp256k1Signature, OfflineSigner, StdSignature } from "@cosmjs/launchpad";
+
+import { LaunchpadLedger } from "./launchpadledger";
+
+interface LedgerWalletOptions {
+  readonly testModeAllowed: boolean;
+}
+
+export class LedgerWallet implements OfflineSigner {
+  private readonly ledger: LaunchpadLedger;
+  private address: string | undefined;
+  private pubkey: Uint8Array | undefined;
+
+  constructor(options?: LedgerWalletOptions) {
+    this.ledger = new LaunchpadLedger(options);
+  }
+
+  public async getAccounts(): Promise<readonly AccountData[]> {
+    await this.ledger.connect();
+
+    const address = (this.address = this.address || (await this.ledger.getCosmosAddress()));
+    const pubkey = (this.pubkey = this.pubkey || (await this.ledger.getPubKey()));
+
+    return [
+      {
+        algo: "secp256k1",
+        address: address,
+        pubkey: pubkey,
+      },
+    ];
+  }
+
+  public async sign(address: string, message: Uint8Array): Promise<StdSignature> {
+    await this.ledger.connect();
+
+    const thisAddress = (this.address = this.address || (await this.ledger.getCosmosAddress()));
+    if (address !== thisAddress) {
+      throw new Error(`Address ${address} not found in wallet`);
+    }
+
+    const signature = await this.ledger.sign(message);
+    const pubkey = (this.pubkey = this.pubkey || (await this.ledger.getPubKey()));
+    return encodeSecp256k1Signature(pubkey, signature);
+  }
+}

packages/launchpad-ledger/types/index.d.ts

@@ -1 +1,2 @@
 export { LaunchpadLedger } from "./launchpadledger";
+export { LedgerWallet } from "./ledgerwallet";

packages/launchpad-ledger/types/ledger.demo.d.ts

@@ -0,0 +1 @@
+export {};

packages/launchpad-ledger/types/ledgerwallet.d.ts

@@ -0,0 +1,13 @@
+import { AccountData, OfflineSigner, StdSignature } from "@cosmjs/launchpad";
+interface LedgerWalletOptions {
+  readonly testModeAllowed: boolean;
+}
+export declare class LedgerWallet implements OfflineSigner {
+  private readonly ledger;
+  private address;
+  private pubkey;
+  constructor(options?: LedgerWalletOptions);
+  getAccounts(): Promise<readonly AccountData[]>;
+  sign(address: string, message: Uint8Array): Promise<StdSignature>;
+}
+export {};

packages/launchpad-ledger/webpack.web.config.js

@@ -1,19 +1,29 @@
 const glob = require("glob");
 const path = require("path");
-const webpack = require("webpack");
+// const webpack = require("webpack");
 
 const target = "web";
-const distdir = path.join(__dirname, "dist", "web");
+// const distdir = path.join(__dirname, "dist", "web");
+const demodir = path.join(__dirname, "dist", "demo");
 
 module.exports = [
+  // {
+  //   // bundle used for Karma tests
+  //   target: target,
+  //   entry: glob.sync("./build/**/*.spec.js"),
+  //   output: {
+  //     path: distdir,
+  //     filename: "tests.js",
+  //   },
+  //   plugins: [new webpack.EnvironmentPlugin(["WASMD_ENABLED"])],
+  // },
   {
-    // bundle used for Karma tests
+    // bundle used for Ledger demo
     target: target,
-    entry: glob.sync("./build/**/*.spec.js"),
+    entry: glob.sync("./build/**/*.demo.js"),
     output: {
-      path: distdir,
-      filename: "tests.js",
+      path: demodir,
+      filename: "ledger.js",
     },
-    plugins: [new webpack.EnvironmentPlugin(["WASMD_ENABLED"])],
   },
 ];