Use origin on login and registration funnel (#2985)

Author: Llorenç Muntaner

src/frontend/src/flows/authorize/postMessageInterface.ts

@@ -2,6 +2,7 @@
 // applications that want to authenticate the user using Internet Identity
 import { analytics } from "$src/utils/analytics/analytics";
 import { loginFunnel } from "$src/utils/analytics/loginFunnel";
+import { registrationFunnel } from "$src/utils/analytics/registrationFunnel";
 import { type SignedDelegation as FrontendSignedDelegation } from "@dfinity/identity";
 import { Principal } from "@dfinity/principal";
 import { z } from "zod";
@@ -131,8 +132,8 @@ export async function authenticationProtocol({
   analytics.event("authorize-client-request-valid", {
     origin: requestOrigin,
   });
-  // TODO: Add origin to login funnel
-  loginFunnel.init();
+  loginFunnel.init({ origin: requestOrigin });
+  registrationFunnel.init({ origin: requestOrigin });
 
   const authContext = {
     authRequest: requestResult.request,

src/frontend/src/index.ts

@@ -11,6 +11,7 @@ import { createSpa } from "./spa";
 import { getAddDeviceAnchor } from "./utils/addDeviceLink";
 import { analytics, initAnalytics } from "./utils/analytics/analytics";
 import { registrationFunnel } from "./utils/analytics/registrationFunnel";
+import { loginFunnel } from "./utils/analytics/loginFunnel";
 
 void createSpa(async (connection) => {
   initAnalytics(connection.canisterConfig.analytics_config[0]?.[0]);
@@ -51,7 +52,6 @@ void createSpa(async (connection) => {
   // Simple, #-based routing
   if (url.hash === "#authorize") {
     analytics.event("page-authorize");
-    registrationFunnel.init();
     // User was brought here by a dapp for authorization
     return authFlowAuthorize(connection);
   } else if (url.hash === WEBAUTHN_IFRAME_PATH) {
@@ -60,7 +60,9 @@ void createSpa(async (connection) => {
     return webAuthnInIframeFlow(connection);
   } else {
     analytics.event("page-manage");
+    // Initialize funnels without origin.
     registrationFunnel.init();
+    loginFunnel.init();
     // The default flow
     return authFlowManage(connection);
   }