Trigger auth plugin by given query param (#3586)

* Trigger auth plugin by given query param

* Fix fallback patameters

* Move hook to the separated file

* Re-login case

src/auth/hooks/useAuthParameters.ts

@@ -0,0 +1,20 @@
+import useLocalStorage from "@dashboard/hooks/useLocalStorage";
+
+import { loginCallbackPath } from "../urls";
+
+export const useAuthParameters = () => {
+  const [requestedExternalPluginId, setRequestedExternalPluginId] =
+    useLocalStorage("requestedExternalPluginId", null);
+  const [fallbackUri, setFallbackUri] = useLocalStorage(
+    "externalLoginFallbackUri",
+    null,
+  );
+
+  return {
+    requestedExternalPluginId,
+    fallbackUri: fallbackUri === "null" ? "/" : fallbackUri,
+    isCallbackPath: location.pathname.includes(loginCallbackPath),
+    setRequestedExternalPluginId,
+    setFallbackUri,
+  };
+};

src/auth/hooks/useAuthRedirection.ts

@@ -0,0 +1,60 @@
+import { getAppMountUri } from "@dashboard/config";
+import { getAppMountUriForRedirect } from "@dashboard/utils/urls";
+import { useEffect } from "react";
+import urlJoin from "url-join";
+import useRouter from "use-react-router";
+
+import { useUser } from "..";
+import { loginCallbackPath } from "../urls";
+import { useAuthParameters } from "./useAuthParameters";
+
+const PLUGIN_ID_PARAM = "saleorPluginId";
+
+export const useAuthRedirection = () => {
+  const router = useRouter();
+  const params = new URLSearchParams(router.location.search);
+  const shouldRedirect = params.has(PLUGIN_ID_PARAM);
+  const { authenticated, authenticating, requestLoginByExternalPlugin } =
+    useUser();
+  const { setRequestedExternalPluginId } = useAuthParameters();
+  const pluginId = params.get(PLUGIN_ID_PARAM);
+
+  const handleAuthentication = async () => {
+    setRequestedExternalPluginId(pluginId);
+
+    const redirectUri = urlJoin(
+      window.location.origin,
+      getAppMountUriForRedirect(),
+      loginCallbackPath,
+    );
+
+    const response = await requestLoginByExternalPlugin(pluginId, {
+      redirectUri,
+    });
+    const data = JSON.parse(response?.authenticationData || "");
+
+    if (data && !response?.errors?.length) {
+      window.location.href = data.authorizationUrl;
+    }
+  };
+
+  useEffect(() => {
+    if (!shouldRedirect) {
+      return;
+    }
+
+    if (authenticated || authenticating) {
+      window.location.href = getAppMountUri();
+      return;
+    }
+
+    if (!authenticated && !authenticating) {
+      handleAuthentication();
+    }
+  }, [shouldRedirect, authenticated, authenticating]);
+
+  return {
+    authenticated,
+    authenticating: authenticating || shouldRedirect,
+  };
+};

src/auth/views/Login.tsx

@@ -1,5 +1,4 @@
 import { useAvailableExternalAuthenticationsQuery } from "@dashboard/graphql";
-import useLocalStorage from "@dashboard/hooks/useLocalStorage";
 import useNavigator from "@dashboard/hooks/useNavigator";
 import { getAppMountUriForRedirect } from "@dashboard/utils/urls";
 import React, { useEffect } from "react";
@@ -9,6 +8,7 @@ import useRouter from "use-react-router";
 import { useUser } from "..";
 import LoginPage from "../components/LoginPage";
 import { LoginFormData } from "../components/LoginPage/types";
+import { useAuthParameters } from "../hooks/useAuthParameters";
 import { loginCallbackPath, LoginUrlQueryParams } from "../urls";
 
 interface LoginViewProps {
@@ -29,15 +29,14 @@ const LoginView: React.FC<LoginViewProps> = ({ params }) => {
     data: externalAuthentications,
     loading: externalAuthenticationsLoading,
   } = useAvailableExternalAuthenticationsQuery();
-  const [
-    requestedExternalPluginId,
-    setRequestedExternalPluginId,
-  ] = useLocalStorage("requestedExternalPluginId", null);
 
-  const [fallbackUri, setFallbackUri] = useLocalStorage(
-    "externalLoginFallbackUri",
-    null,
-  );
+  const {
+    fallbackUri,
+    requestedExternalPluginId,
+    isCallbackPath,
+    setFallbackUri,
+    setRequestedExternalPluginId,
+  } = useAuthParameters();
 
   const handleSubmit = async (data: LoginFormData) => {
     const result = await login(data.email, data.password);
@@ -70,15 +69,13 @@ const LoginView: React.FC<LoginViewProps> = ({ params }) => {
     });
     setRequestedExternalPluginId(null);
     if (result && !result?.errors?.length) {
-      navigate(fallbackUri ?? "/");
+      navigate(fallbackUri);
       setFallbackUri(null);
     }
   };
 
   useEffect(() => {
     const { code, state } = params;
-    const isCallbackPath = location.pathname.includes(loginCallbackPath);
-
     const externalAuthParamsExist = code && state && isCallbackPath;
     const externalAuthNotPerformed = !authenticating && !errors.length;
 

src/index.tsx

@@ -20,10 +20,11 @@ import { ExternalAppProvider } from "./apps/components/ExternalAppContext";
 import { AppSections } from "./apps/urls";
 import AttributeSection from "./attributes";
 import { attributeSection } from "./attributes/urls";
-import Auth, { useUser } from "./auth";
+import Auth from "./auth";
 import AuthProvider from "./auth/AuthProvider";
 import LoginLoading from "./auth/components/LoginLoading/LoginLoading";
 import SectionRoute from "./auth/components/SectionRoute";
+import { useAuthRedirection } from "./auth/hooks/useAuthRedirection";
 import CategorySection from "./categories";
 import ChannelsSection from "./channels";
 import { channelsSection } from "./channels/urls";
@@ -145,7 +146,7 @@ const App: React.FC = () => (
 const Routes: React.FC = () => {
   const intl = useIntl();
   const [, dispatchAppState] = useAppState();
-  const { authenticated, authenticating } = useUser();
+  const { authenticated, authenticating } = useAuthRedirection();
 
   const { channel } = useAppChannel(false);