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feat: update generic app code, add migration app #104

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merged 4 commits into from
May 10, 2024
Merged

feat: update generic app code, add migration app #104

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a2e70e6
feat: update generic app code, add migration app
emmanuelm41 May 8, 2024
61cc962
fix: export newMigrationApp method
emmanuelm41 May 8, 2024
3b6d0fd
feat: adjust code to last api version
emmanuelm41 May 10, 2024
36f152f
feat: rename classes and functions
emmanuelm41 May 10, 2024
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56 changes: 41 additions & 15 deletions src/generic_app.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -33,46 +33,67 @@ import {
P1_VALUES,
} from "./common";

const PolkadotCLA = 0x90;
const PolkadotSlip0044 = 0x80000162;

interface TxMetadata {
txMetadata: string;
}

export function newGenericApp(transport: Transport, chainTicker: string, txMetadataSrvUrl: string): GenericApp {
return GenericApp.new(transport, chainTicker, txMetadataSrvUrl);
export function newGenericApp(transport: Transport, chainId: string, txMetadataSrvUrl: string): GenericApp {
return GenericApp.new(transport, chainId, txMetadataSrvUrl);
}
export function newMigrationApp(
transport: Transport,
chainId: string,
cla: number,
sip0044: number,
txMetadataSrvUrl: string,
): GenericApp {
return GenericApp.newMigrationApp(transport, cla, sip0044, chainId, txMetadataSrvUrl);
}

export class GenericApp {
transport: Transport;
cla: number;
slip0044: number;
txMetadataSrvUrl: string;
chainTicker: string;
chainId: string;

static new(transport: Transport, chainId: string, txMetadataSrvUrl: string): GenericApp {
return new GenericApp(transport, PolkadotCLA, PolkadotSlip0044, chainId, txMetadataSrvUrl);
}

static new(transport: Transport, chainTicker: string, txMetadataSrvUrl: string): GenericApp {
return new GenericApp(transport, 0x90, 0x80000162, chainTicker, txMetadataSrvUrl);
static newApp(transport: Transport, chainId: string, txMetadataSrvUrl: string): GenericApp {
return new GenericApp(transport, PolkadotCLA, PolkadotSlip0044, chainId, txMetadataSrvUrl);
}

private constructor(
static newMigrationApp(
transport: Transport,
cla: number,
slip0044: number,
chainTicker: string,
chainId: string,
txMetadataSrvUrl: string,
) {
): GenericApp {
return new GenericApp(transport, cla, slip0044, chainId, txMetadataSrvUrl);
}

private constructor(transport: Transport, cla: number, slip0044: number, chainId: string, txMetadataSrvUrl: string) {
if (transport == null) {
throw new Error("Transport has not been defined");
}
this.transport = transport;
this.cla = cla;
this.slip0044 = slip0044;
this.txMetadataSrvUrl = txMetadataSrvUrl;
this.chainTicker = chainTicker;
this.chainId = chainId;
}

async getTxMetadata(txBlob: Buffer): Promise<Buffer> {
async getTxMetadata(callData: Buffer, signedExtensions: Buffer): Promise<Buffer> {
const resp = await axios.post<TxMetadata>(this.txMetadataSrvUrl, {
txBlob: txBlob.toString("hex"),
chain: { id: this.chainTicker },
callData: callData.toString("hex"),
signedExtensions: signedExtensions.toString("hex"),
chain: { id: this.chainId },
});

return Buffer.from(resp.data.txMetadata, "hex");
Expand Down Expand Up @@ -245,9 +266,14 @@ export class GenericApp {
}
}

async sign(account: number, change: number, addressIndex: number, blob: Buffer) {
const txMetadata = await this.getTxMetadata(blob);
return await this.signImpl(account, change, addressIndex, INS.SIGN, blob, txMetadata);
async sign(account: number, change: number, addressIndex: number, callData: Buffer, signedExtensions: Buffer) {
const txMetadata = await this.getTxMetadata(callData, signedExtensions);
const txBlob = Buffer.concat([callData, signedExtensions]);
return await this.signImpl(account, change, addressIndex, INS.SIGN, txBlob, txMetadata);
}

async signAdvanced(account: number, change: number, addressIndex: number, txBlob: Buffer, txMetadata: Buffer) {
return await this.signImpl(account, change, addressIndex, INS.SIGN, txBlob, txMetadata);
}

async signRaw(account: number, change: number, addressIndex: number, blob: Buffer) {
Expand Down
2 changes: 1 addition & 1 deletion src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -18,4 +18,4 @@
export * from "./legacy_apps";
export * from "./generic_app";
export { SubstrateApp } from "./substrate_app";
export { newSubstrateApp, supportedApps } from "./supported_apps";
export { newSubstrateApp, newMigrationGenericApp, supportedApps } from "./supported_apps";
17 changes: 17 additions & 0 deletions src/supported_apps.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@
import { SubstrateApp } from "./substrate_app";
import { type SubstrateAppParams } from "./common";
import type Transport from "@ledgerhq/hw-transport";
import { GenericApp } from "./generic_app";

export function newSubstrateApp(transport: Transport, chainName: string) {
const requestedApp = supportedApps.find((app: SubstrateAppParams) => {
Expand All @@ -28,6 +29,22 @@ export function newSubstrateApp(transport: Transport, chainName: string) {
throw new Error(`Error: ${chainName} not supported`);
}

export function newMigrationGenericApp(transport: Transport, chainName: string, txMetadataSrvUrl: string) {
const requestedApp = supportedApps.find((app: SubstrateAppParams) => {
return app.name.toLowerCase() === chainName.toLowerCase();
});
if (requestedApp != null) {
return GenericApp.newMigrationApp(
transport,
requestedApp.cla,
requestedApp.slip0044,
requestedApp.name,
txMetadataSrvUrl,
);
}
throw new Error(`Error: ${chainName} not supported`);
}

export function getAppParams(chainName: string) {
const params = supportedApps.find((app: SubstrateAppParams) => {
return app.name.toLowerCase() === chainName.toLowerCase();
Expand Down
27 changes: 17 additions & 10 deletions tests/integration_generic.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -28,8 +28,10 @@ const CHAIN_NAME = "Kusama";
const CHAIN_TICKER = "ksm";
const YOUR_PUBKEY = "d280b24dface41f31006e5a2783971fc5a66c862dd7d08f97603d2902b75e47a";
const YOUR_ADDRESS = "HLKocKgeGjpXkGJU6VACtTYJK4ApTCfcGRw51E5jWntcsXv";
const YOUR_BLOB =
"040000313233343536373839303132333435363738393031323334353637383930313233158139ae28a3dfaac5fe1560a5e9e05cd5038d2433158139ae28a3dfaac5fe1560a5e9e05c362400000c000000b0a8d493285c2df73290dfb7e61f870f17b41801197a149ca93654499ea3dafeb0a8d493285c2df73290dfb7e61f870f17b41801197a149ca93654499ea3dafe";
const YOUR_CALL_DATA =
"0000d050f0c8c0a9706b7c0c4e439245a347627901c89d4791239533d1d2c961f1a72ad615c8530de078e565ba644b38b01bcad249e8c0";
const YOUR_SIGNED_EXTENSIONS =
"a80aceb4befe330990a59f74ed976c933db269c64dda40104a0f001900000091b171bb158e2d3848fa23a9f1c25182fb8e20313b2c1eb49219da7a70ce90c3a071db11cdbfd29285f25d402f1aee7a1c0384269c9c2edb476688d35e346998";

let transport = {};

Expand Down Expand Up @@ -111,8 +113,9 @@ describe("Integration", function () {
// @ts-expect-error transport will be there
const app = newGenericApp(transport, CHAIN_TICKER, TX_METADATA_SRV_URL);

const txBlob = Buffer.from(YOUR_BLOB, "hex");
const resp = await app.getTxMetadata(txBlob);
const callData = Buffer.from(YOUR_CALL_DATA, "hex");
const signedExtensions = Buffer.from(YOUR_SIGNED_EXTENSIONS, "hex");
const resp = await app.getTxMetadata(callData, signedExtensions);

expect(resp).toBeDefined();
});
Expand All @@ -121,9 +124,10 @@ describe("Integration", function () {
// @ts-expect-error transport will be there
const app = newGenericApp(transport, "xxx", TX_METADATA_SRV_URL);

const txBlob = Buffer.from(YOUR_BLOB, "hex");
const callData = Buffer.from(YOUR_CALL_DATA, "hex");
const signedExtensions = Buffer.from(YOUR_SIGNED_EXTENSIONS, "hex");
try {
await app.getTxMetadata(txBlob);
await app.getTxMetadata(callData, signedExtensions);
} catch (e: any) {
expect(e.response.status).toBe(404);
}
Expand All @@ -133,9 +137,10 @@ describe("Integration", function () {
// @ts-expect-error transport will be there
const app = newGenericApp(transport, "ksm", "");

const txBlob = Buffer.from(YOUR_BLOB, "hex");
const callData = Buffer.from(YOUR_CALL_DATA, "hex");
const signedExtensions = Buffer.from(YOUR_SIGNED_EXTENSIONS, "hex");
try {
await app.getTxMetadata(txBlob);
await app.getTxMetadata(callData, signedExtensions);
} catch (e: any) {
expect(e.code).toBe("ECONNREFUSED");
}
Expand All @@ -149,7 +154,9 @@ describe("Integration", function () {
return;
}

const txBlob = Buffer.from(YOUR_BLOB, "hex");
const callData = Buffer.from(YOUR_CALL_DATA, "hex");
const signedExtensions = Buffer.from(YOUR_SIGNED_EXTENSIONS, "hex");
const txBlob = Buffer.concat([callData, signedExtensions]);

// @ts-expect-error transport will be there
const app = newGenericApp(transport, CHAIN_TICKER, TX_METADATA_SRV_URL);
Expand All @@ -159,7 +166,7 @@ describe("Integration", function () {
const pathIndex = 0x80000000;

const responseAddr = await app.getAddress(pathAccount, pathChange, pathIndex, ss58prefix);
const responseSign = await app.sign(pathAccount, pathChange, pathIndex, txBlob);
const responseSign = await app.sign(pathAccount, pathChange, pathIndex, callData, signedExtensions);

const pubkey = responseAddr.pubKey;

Expand Down
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