feat: add portal to aa-signers

packages/signers/package.json

@@ -45,6 +45,7 @@
     "@fireblocks/fireblocks-web3-provider": "^1.2.6",
     "@particle-network/auth": "^1.2.2",
     "@particle-network/provider": "^1.2.1",
+    "@portal-hq/web": "^0.0.8",
     "@web3auth/base": "^7.1.0",
     "@web3auth/modal": "^7.1.1",
     "jsdom": "^22.1.0",
@@ -76,6 +77,7 @@
     "@fireblocks/fireblocks-web3-provider": "^1.2.6",
     "@particle-network/auth": "^1.2.2",
     "@particle-network/provider": "^1.2.1",
+    "@portal-hq/web": "^0.0.8",
     "@web3auth/base": "^7.1.0",
     "@web3auth/modal": "^7.1.1",
     "magic-sdk": "^21.3.0"

packages/signers/src/index.ts

@@ -3,15 +3,19 @@ export {
   type FireblocksAuthenticationParams,
 } from "./fireblocks/index.js";
 export { MagicSigner, type MagicAuthParams } from "./magic/index.js";
+export {
+  ParticleSigner,
+  type ParticleAuthenticationParams,
+} from "./particle/index.js";
+export {
+  PortalSigner,
+  type PortalAuthenticationParams,
+} from "./portal/index.js";
 export {
   TurnkeySigner,
   TurnkeySubOrganization,
   type TurnkeyAuthParams,
 } from "./turnkey/index.js";
-export {
-  ParticleSigner,
-  type ParticleAuthenticationParams,
-} from "./particle/index.js";
 export {
   Web3AuthSigner,
   type Web3AuthAuthenticationParams,

packages/signers/src/portal/__tests__/signer.test.ts

@@ -0,0 +1,130 @@
+import Portal from "@portal-hq/web";
+import { sepolia } from "viem/chains";
+import { PortalSigner } from "../signer.js";
+
+// taken from Portal SDK since not exported
+interface RequestArguments {
+  method: string;
+  params?: unknown[];
+}
+
+describe("Portal Signer Tests", () => {
+  it("should correctly get address", async () => {
+    const signer = await givenSigner();
+
+    const address = await signer.getAddress();
+    expect(address).toMatchInlineSnapshot(
+      '"0x1234567890123456789012345678901234567890"'
+    );
+  });
+
+  it("should correctly fail to get address if unauthenticated", async () => {
+    const signer = await givenSigner(false);
+
+    const address = signer.getAddress();
+    await expect(address).rejects.toThrowErrorMatchingInlineSnapshot(
+      '"Not authenticated"'
+    );
+  });
+
+  it("should correctly get auth details", async () => {
+    const signer = await givenSigner();
+
+    const details = await signer.getAuthDetails();
+    expect(details).toMatchInlineSnapshot(`
+      {
+        "address": "0x1234567890123456789012345678901234567890",
+        "backupStatus": null,
+        "custodian": {
+          "id": "1",
+          "name": "test",
+        },
+        "id": "0",
+        "signingStatus": null,
+      }
+    `);
+  });
+
+  it("should correctly fail to get auth details if unauthenticated", async () => {
+    const signer = await givenSigner(false);
+
+    const details = signer.getAuthDetails();
+    await expect(details).rejects.toThrowErrorMatchingInlineSnapshot(
+      '"Not authenticated"'
+    );
+  });
+
+  it("should correctly sign message if authenticated", async () => {
+    const signer = await givenSigner();
+
+    const signMessage = await signer.signMessage("test");
+    expect(signMessage).toMatchInlineSnapshot('"0xtest"');
+  });
+
+  it("should correctly fail to sign message if unauthenticated", async () => {
+    const signer = await givenSigner(false);
+
+    const signMessage = signer.signMessage("test");
+    await expect(signMessage).rejects.toThrowErrorMatchingInlineSnapshot(
+      '"Not authenticated"'
+    );
+  });
+
+  it("should correctly sign typed data if authenticated", async () => {
+    const signer = await givenSigner();
+
+    const typedData = {
+      types: {
+        Request: [{ name: "hello", type: "string" }],
+      },
+      primaryType: "Request",
+      message: {
+        hello: "world",
+      },
+    };
+    const signTypedData = await signer.signTypedData(typedData);
+    expect(signTypedData).toMatchInlineSnapshot('"0xtest"');
+  });
+});
+
+const givenSigner = async (auth = true) => {
+  const inner = new Portal({
+    autoApprove: true,
+    gatewayConfig: `${sepolia.rpcUrls.alchemy.http}/${process.env.ALCHEMY_API_KEY}`,
+    chainId: sepolia.id,
+  });
+
+  inner.getClient = vi.fn().mockResolvedValue({
+    id: "0",
+    address: "0x1234567890123456789012345678901234567890",
+    backupStatus: null,
+    custodian: {
+      id: "1",
+      name: "test",
+    },
+    signingStatus: null,
+  });
+
+  inner.provider.request = vi.fn(async <R>(args: RequestArguments) => {
+    switch (args.method) {
+      case "eth_accounts":
+        return Promise.resolve([
+          "0x1234567890123456789012345678901234567890",
+        ]) as R;
+      case "personal_sign":
+        return Promise.resolve("0xtest") as R;
+      case "eth_signTypedData_v4":
+        return Promise.resolve("0xtest") as R;
+      default:
+        return Promise.reject(new Error("Method not found"));
+    }
+  });
+
+  const signer = new PortalSigner({ inner });
+
+  if (auth) {
+    await signer.authenticate();
+  }
+
+  return signer;
+};

packages/signers/src/portal/index.ts

@@ -0,0 +1,2 @@
+export { PortalSigner } from "./signer.js";
+export type * from "./types.js";

packages/signers/src/portal/signer.ts

@@ -0,0 +1,75 @@
+import {
+  WalletClientSigner,
+  type SignTypedDataParams,
+  type SmartAccountAuthenticator,
+} from "@alchemy/aa-core";
+import Portal, { type PortalOptions } from "@portal-hq/web";
+import { createWalletClient, custom, type Hash } from "viem";
+import type { PortalAuthenticationParams, PortalUserInfo } from "./types.js";
+
+/**
+ * This class requires the `@portal-hq/web` dependency.
+ * `@alchemy/aa-signers` lists it as an optional dependency.
+ *
+ * @see: https://docs.portalhq.io/sdk/web-beta
+ */
+export class PortalSigner
+  implements
+    SmartAccountAuthenticator<
+      PortalAuthenticationParams,
+      PortalUserInfo,
+      Portal
+    >
+{
+  inner: Portal;
+  private signer: WalletClientSigner | undefined;
+
+  constructor(params: PortalOptions | { inner: Portal }) {
+    if ("inner" in params) {
+      this.inner = params.inner;
+      return;
+    }
+
+    this.inner = new Portal(params);
+  }
+
+  readonly signerType = "portal";
+
+  getAddress = async () => {
+    if (!this.signer) throw new Error("Not authenticated");
+
+    const address = await this.signer.getAddress();
+    if (address == null) throw new Error("No address found");
+
+    return address as Hash;
+  };
+
+  signMessage = async (msg: Uint8Array | string) => {
+    if (!this.signer) throw new Error("Not authenticated");
+
+    return this.signer.signMessage(msg);
+  };
+
+  signTypedData = (params: SignTypedDataParams) => {
+    if (!this.signer) throw new Error("Not authenticated");
+
+    return this.signer.signTypedData(params);
+  };
+
+  authenticate = async () => {
+    this.signer = new WalletClientSigner(
+      createWalletClient({
+        transport: custom(this.inner.provider),
+      }),
+      this.signerType
+    );
+
+    return this.inner.getClient() as Promise<PortalUserInfo>;
+  };
+
+  getAuthDetails = async () => {
+    if (!this.signer) throw new Error("Not authenticated");
+
+    return this.inner.getClient() as Promise<PortalUserInfo>;
+  };
+}

packages/signers/src/portal/types.ts

@@ -0,0 +1,15 @@
+import type { Address } from "viem";
+
+export interface PortalAuthenticationParams {}
+
+// taken from Portal SDK since not exported
+export type PortalUserInfo = {
+  id: string;
+  address: Address;
+  backupStatus?: string | null;
+  custodian: {
+    id: string;
+    name: string;
+  };
+  signingStatus?: string | null;
+};

site/.vitepress/config.ts

@@ -738,6 +738,20 @@ export default defineConfig({
                   { text: "getAuthDetails", link: "/getAuthDetails" },
                 ],
               },
+              {
+                text: "Portal Signer",
+                collapsed: true,
+                base: "/packages/aa-signers/portal",
+                items: [
+                  { text: "Introduction", link: "/introduction" },
+                  { text: "constructor", link: "/constructor" },
+                  { text: "authenticate", link: "/authenticate" },
+                  { text: "getAddress", link: "/getAddress" },
+                  { text: "signMessage", link: "/signMessage" },
+                  { text: "signTypedData", link: "/signTypedData" },
+                  { text: "getAuthDetails", link: "/getAuthDetails" },
+                ],
+              },
               { text: "Contributing", link: "/contributing" },
             ],
           },

site/packages/aa-signers/portal/authenticate.md

@@ -0,0 +1,54 @@
+---
+outline: deep
+head:
+  - - meta
+    - property: og:title
+      content: PortalSigner • authenticate
+  - - meta
+    - name: description
+      content: Overview of the authenticate method on PortalSigner
+  - - meta
+    - property: og:description
+      content: Overview of the authenticate method on PortalSigner
+---
+
+# authenticate
+
+`authenticate` is a method on the `PortalSigner` which leverages the `Portal` SDK to authenticate a user.
+
+You must call this method before accessing the other methods available on the `PortalSigner`, such as signing messages or typed data or accessing user details.
+
+## Usage
+
+::: code-group
+
+```ts [example.ts]
+// [!code focus:99]
+import { PortalSigner } from "@alchemy/aa-signers";
+
+const portalSigner = new PortalSigner({
+  autoApprove: true,
+  gatewayConfig: `${sepolia.rpcUrls.alchemy.http}/${process.env.ALCHEMY_API_KEY}`,
+  chainId: sepolia.id,
+});
+
+await portalSigner.authenticate();
+```
+
+:::
+
+## Returns
+
+### `Promise<PortalUserInfo>`
+
+A Promise containing the `PortalUserInfo`, an object with the following fields:
+
+- `id: string` -- ID of the Portal Signer.
+- `address: string` -- EOA address of the Portal Signer.
+- `backupStatus: string | null` -- [optional] status of wallet backup.
+- `custodian: Obect` -- [optional] EOA address of the Portal Signer.
+  - `id: string` -- ID of the Signer's custodian.
+  - `name: string` -- Name of the Signer's custodian.
+- `signingStatus: string | null` -- [optional] status of signing.
+
+This derives from the return type of a Portal provider's `getClient()` method.