enh(#861): Redirect back to requested page after authentication (#870)

* merge with main

* added check for presence of addDefaultCallbackUrl in globalAppMiddleware

* Update src/runtime/composables/local/useAuth.ts

* Update useAuth.ts

---------

Co-authored-by: Zoey <[email protected]>
Co-authored-by: Marsel Shayhin <[email protected]>

Author: 3 people

src/runtime/composables/local/useAuth.ts

@@ -10,7 +10,7 @@ import { type UseAuthStateReturn, useAuthState } from './useAuthState'
 import { callWithNuxt } from '#app/nuxt'
 // @ts-expect-error - #auth not defined
 import type { SessionData } from '#auth'
-import { navigateTo, nextTick, useNuxtApp, useRuntimeConfig } from '#imports'
+import { navigateTo, nextTick, useNuxtApp, useRoute, useRuntimeConfig } from '#imports'
 
 type Credentials = { username?: string, email?: string, password?: string } & Record<string, any>
 
@@ -60,7 +60,13 @@ const signIn: SignInFunc<Credentials, any> = async (credentials, signInOptions,
   const { redirect = true, external } = signInOptions ?? {}
   let { callbackUrl } = signInOptions ?? {}
   if (typeof callbackUrl === 'undefined') {
-    callbackUrl = await determineCallbackUrl(runtimeConfig.public.auth, () => getRequestURLWN(nuxt))
+    const redirectQueryParam = useRoute()?.query?.redirect
+    if (redirectQueryParam) {
+      callbackUrl = redirectQueryParam.toString()
+    }
+    else {
+      callbackUrl = await determineCallbackUrl(runtimeConfig.public.auth, () => getRequestURLWN(nuxt))
+    }
   }
   if (redirect) {
     return navigateTo(callbackUrl, { external })

src/runtime/middleware/auth.ts

@@ -105,6 +105,19 @@ export default defineNuxtRouteMiddleware((to) => {
     return navigateTo(metaAuth.navigateUnauthenticatedTo)
   }
   else {
+    if (typeof globalAppMiddleware === 'object' && globalAppMiddleware.addDefaultCallbackUrl) {
+      let redirectUrl: string = to.fullPath
+      if (typeof globalAppMiddleware.addDefaultCallbackUrl === 'string') {
+        redirectUrl = globalAppMiddleware.addDefaultCallbackUrl
+      }
+
+      return navigateTo({
+        path: authConfig.provider.pages.login,
+        query: {
+          redirect: redirectUrl
+        }
+      })
+    }
     return navigateTo(authConfig.provider.pages.login)
   }
 })