✨ (signer-solana) [DSDK-552]: Added getAppConfigurationCommand

.changeset/fast-planes-cover.md

@@ -0,0 +1,5 @@
+---
+"@ledgerhq/device-signer-kit-solana": patch
+---
+
+Added getAppConfigurationCommand in solana-signer

packages/signer/signer-solana/src/internal/app-binder/command/GetAppConfigurationCommand.test.ts

@@ -0,0 +1,88 @@
+import {
+  ApduResponse,
+  CommandResultFactory,
+  isSuccessCommandResult,
+} from "@ledgerhq/device-management-kit";
+
+import { GetAppConfigurationCommand } from "./GetAppConfigurationCommand";
+
+const GET_APP_CONFIG_APDU = new Uint8Array([0xe0, 0x04, 0x00, 0x00, 0x00]);
+
+const GET_APP_CONFIG_RESPONSE_DATA = new Uint8Array([
+  0x01, 0x00, 0x02, 0x05, 0x0a,
+]);
+
+const GET_APP_CONFIG_RESPONSE = new ApduResponse({
+  statusCode: Uint8Array.from([0x90, 0x00]),
+  data: GET_APP_CONFIG_RESPONSE_DATA,
+});
+
+describe("GetAppConfigurationCommand", () => {
+  let command: GetAppConfigurationCommand;
+
+  beforeEach(() => {
+    command = new GetAppConfigurationCommand();
+    jest.clearAllMocks();
+    jest.requireActual("@ledgerhq/device-management-kit");
+  });
+
+  describe("getApdu", () => {
+    it("should return the correct APDU", () => {
+      const apdu = command.getApdu();
+      expect(apdu.getRawApdu()).toEqual(GET_APP_CONFIG_APDU);
+    });
+  });
+
+  describe("parseResponse", () => {
+    it("should parse the response correctly", () => {
+      const parsed = command.parseResponse(GET_APP_CONFIG_RESPONSE);
+      expect(parsed).toStrictEqual(
+        CommandResultFactory({
+          data: {
+            blindSigningEnabled: true,
+            pubKeyDisplayMode: false,
+            version: "2.5.10",
+          },
+        }),
+      );
+    });
+
+    describe("error handling", () => {
+      it("should return error if response is not success", () => {
+        const response = new ApduResponse({
+          statusCode: Uint8Array.from([0x6a, 0x82]),
+          data: new Uint8Array(0),
+        });
+        const result = command.parseResponse(response);
+        expect(isSuccessCommandResult(result)).toBe(false);
+        if (!isSuccessCommandResult(result)) {
+          expect(result.error).toEqual(
+            expect.objectContaining({
+              message: "Unexpected device exchange error happened.",
+            }),
+          );
+        } else {
+          fail("Expected error");
+        }
+      });
+
+      it("should return error if response length is invalid", () => {
+        const response = new ApduResponse({
+          statusCode: Uint8Array.from([0x90, 0x00]),
+          data: new Uint8Array([0x01, 0x00]),
+        });
+        const result = command.parseResponse(response);
+        expect(isSuccessCommandResult(result)).toBe(false);
+        if (!isSuccessCommandResult(result)) {
+          expect(result.error.originalError).toEqual(
+            expect.objectContaining({
+              message: "Invalid response",
+            }),
+          );
+        } else {
+          fail("Expected error");
+        }
+      });
+    });
+  });
+});

packages/signer/signer-solana/src/internal/app-binder/command/GetAppConfigurationCommand.ts

@@ -0,0 +1,72 @@
+import {
+  Apdu,
+  ApduBuilder,
+  ApduParser,
+  ApduResponse,
+  Command,
+  CommandResult,
+  CommandResultFactory,
+  CommandUtils,
+  GlobalCommandErrorHandler,
+  InvalidStatusWordError,
+} from "@ledgerhq/device-management-kit";
+
+type GetAppConfigurationCommandResponse = {
+  blindSigningEnabled: boolean;
+  pubKeyDisplayMode: boolean;
+  version: string;
+};
+
+type GetAppConfigurationCommandArgs = void;
+
+export class GetAppConfigurationCommand
+  implements
+    Command<GetAppConfigurationCommandResponse, GetAppConfigurationCommandArgs>
+{
+  args: GetAppConfigurationCommandArgs;
+
+  constructor(args: GetAppConfigurationCommandArgs) {
+    this.args = args;
+  }
+
+  getApdu(): Apdu {
+    return new ApduBuilder({
+      cla: 0xe0,
+      ins: 0x04,
+      p1: 0x00,
+      p2: 0x00,
+    }).build();
+  }
+
+  parseResponse(
+    response: ApduResponse,
+  ): CommandResult<GetAppConfigurationCommandResponse> {
+    const parser = new ApduParser(response);
+
+    if (!CommandUtils.isSuccessResponse(response)) {
+      return CommandResultFactory({
+        error: GlobalCommandErrorHandler.handle(response),
+      });
+    }
+
+    const buffer = parser.extractFieldByLength(5);
+
+    if (
+      !buffer ||
+      buffer.length !== 5 ||
+      buffer.some((element) => element === undefined)
+    ) {
+      return CommandResultFactory({
+        error: new InvalidStatusWordError("Invalid response"),
+      });
+    }
+
+    return CommandResultFactory({
+      data: {
+        blindSigningEnabled: Boolean(buffer[0]),
+        pubKeyDisplayMode: Boolean(buffer[1]),
+        version: `${buffer[2]}.${buffer[3]}.${buffer[4]}`,
+      },
+    });
+  }
+}