DCKM-582: OID4VP integration

Author: maycon-mello

packages/core/src/credentials/oidvc.ts

@@ -1,7 +1,10 @@
-
 import {IWallet} from '../types';
 import {IDIDProvider} from '../did-provider';
 import {credentialServiceRPC} from '@docknetwork/wallet-sdk-wasm/src/services/credential';
+import {MetadataClient} from '@sphereon/oid4vci-client';
+import jwtDecode from 'jwt-decode';
+import axios from 'axios';
+import {pexService} from '@docknetwork/wallet-sdk-wasm/src/services/pex';
 
 export async function acquireOpenIDCredentialFromURI({
   didProvider,
@@ -30,3 +33,78 @@ export async function acquireOpenIDCredentialFromURI({
 
   return response.credential;
 }
+
+export async function getAuthURL(
+  uri: string,
+  walletClientId: string = 'dock-wallet',
+  requestedRedirectURI: string = 'dockwallet://vp',
+) {
+  function buildOID4VPRequestURL(params, prefix = 'dockwallet://') {
+    return `${prefix}?${Object.keys(params)
+      .map(
+        key =>
+          `${encodeURIComponent(key)}=${encodeURIComponent(
+            typeof params[key] === 'object'
+              ? JSON.stringify(params[key])
+              : params[key],
+          )}`,
+      )
+      .join('&')}`;
+  }
+
+  const searchParams = new URL(uri).searchParams;
+  const params = new URLSearchParams(searchParams);
+  const clientId = params.get('client_id');
+  const metadata = await MetadataClient.retrieveAllMetadata(clientId);
+  const requestedAlg =
+    metadata?.authorizationServerMetadata
+      ?.request_object_signing_alg_values_supported[0];
+  const requestParams = {
+    scope: 'openid vp_token',
+    redirect_uri: requestedRedirectURI,
+    client_metadata:
+      requestedAlg && requestedAlg !== 'EdDSA'
+        ? JSON.stringify({
+            vp_formats_supported: {
+              vc_json: {
+                alg_values_supported: [requestedAlg],
+              },
+            },
+          })
+        : ['EdDSA'],
+  };
+
+  return buildOID4VPRequestURL(
+    {
+      ...requestParams,
+      client_id: walletClientId,
+    },
+    metadata.authorization_endpoint,
+  );
+}
+
+export async function decodeRequestJWT(uri: string) {
+  const searchParams = new URL(uri).searchParams;
+  const params = new URLSearchParams(searchParams);
+  const requestUri = params.get('request_uri');
+  const jwt = await axios.get(requestUri).then(res => res.data);
+  const decoded = jwtDecode(jwt);
+
+  return decoded;
+}
+
+export async function getPresentationSubmision({
+  credentials,
+  presentationDefinition,
+  holderDID,
+}) {
+  const presentation = await pexService.presentationFrom({
+    presentationDefinition,
+    credentials,
+    holderDID,
+  });
+
+  return presentation.presentation_submission;
+}
+
+pexService.evaluatePresentation;

packages/wasm/src/services/pex/config.ts

@@ -19,6 +19,12 @@ export type FilterCredentialsParams = {
   holderDIDs: string[];
 };
 
+export type CreatePresentationParams = {
+  credentials: any[];
+  presentationDefinition: any;
+  holderDID: string;
+};
+
 export type EvaluatePresentationParams = {
   presentation: any;
   presentationDefinition: any;

packages/wasm/src/services/pex/service-rpc.js

@@ -4,6 +4,7 @@ import {
   FilterCredentialsParams,
   validation,
   EvaluatePresentationParams,
+  CreatePresentationParams,
 } from './config';
 
 export class PEXServiceRPC extends RpcService {
@@ -19,4 +20,8 @@ export class PEXServiceRPC extends RpcService {
     validation.evaluatePresentation(params);
     return this.call('evaluatePresentation', params);
   }
+
+  async presentationFrom(params: CreatePresentationParams) {
+    return this.call('presentationFrom', params);
+  }
 }

packages/wasm/src/services/pex/service.ts

@@ -4,8 +4,9 @@ import {
   validation,
   EvaluatePresentationParams,
   FilterCredentialsParams,
+  CreatePresentationParams,
 } from './config';
-import {PEX} from '@sphereon/pex';
+import {IPresentationDefinition, PEX} from '@sphereon/pex';
 
 const pex: PEX = new PEX();
 
@@ -65,6 +66,7 @@ class PEXService {
   rpcMethods = [
     PEXService.prototype.filterCredentials,
     PEXService.prototype.evaluatePresentation,
+    PEXService.prototype.presentationFrom,
   ];
 
   filterCredentials(params: FilterCredentialsParams) {
@@ -89,6 +91,17 @@ class PEXService {
 
     return result;
   }
+
+  presentationFrom(params: CreatePresentationParams) {
+    const {credentials, presentationDefinition, holderDID} = params;
+    const result: IPresentation = pex.presentationFrom(
+      removeOptionalAttribute(presentationDefinition),
+      credentials,
+      holderDID,
+    );
+
+    return result;
+  }
 }
 
 export const pexService = new PEXService();

yarn.lock

@@ -4775,6 +4775,13 @@ available-typed-arrays@^1.0.5:
   resolved "https://registry.yarnpkg.com/available-typed-arrays/-/available-typed-arrays-1.0.5.tgz#92f95616501069d07d10edb2fc37d3e1c65123b7"
   integrity sha512-DMD0KiN46eipeziST1LPP/STfDU0sufISXmjSgvVsoU2tqxctQeASejWcfNtxYKqETM1UxQ8sp2OrSBWpHY6sw==
 
+available-typed-arrays@^1.0.7:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/available-typed-arrays/-/available-typed-arrays-1.0.7.tgz#a5cc375d6a03c2efc87a553f3e0b1522def14846"
+  integrity sha512-wvUjBtSGN7+7SjNpq/9M2Tg350UZD3q62IFZLbRAR1bSMlCo1ZaeW+BJ+D090e4hIIZLBcTDWe4Mh4jvUDajzQ==
+  dependencies:
+    possible-typed-array-names "^1.0.0"
+
 axe-core@^4.6.2:
   version "4.8.1"
   resolved "https://registry.yarnpkg.com/axe-core/-/axe-core-4.8.1.tgz#6948854183ee7e7eae336b9877c5bafa027998ea"