first commit

src/runtime/composables/useAuth.ts

@@ -0,0 +1,68 @@
+import {CookieRef, navigateTo, useCookie, useRuntimeConfig} from "#app";
+import {ModuleOptions} from "../../module";
+
+declare interface ComposableOptions {
+  fetchUserOnInitialization: boolean
+}
+
+export default async (options: ComposableOptions = {
+  fetchUserOnInitialization: false
+}) => {
+  const user: CookieRef<any> = useCookie('oauth_user')
+  const accessToken: CookieRef<any> = useCookie('oauth_access_token')
+  const authConfig = useRuntimeConfig().public.oauth as ModuleOptions;
+
+  const fetchUser = async () => {
+    try {
+      const response = await fetch(authConfig.endpoints.userInfo, {
+        headers: {
+          Accept: 'application/json',
+          Authorization: `${accessToken.value.tokenType} ${accessToken.value.token}`
+        }
+      });
+
+      user.value = response.ok
+        ? await response.json()
+        : null;
+    } catch (e) {
+      user.value = null;
+    }
+  }
+
+  const signIn = async () => {
+    // create oauth authorization url
+    const params = new URLSearchParams({
+      client_id: authConfig.clientId,
+      redirect_uri: window.location.origin + authConfig.redirect.callback,
+      response_type: 'token',
+      scope: authConfig.scope.join(' ')
+    })
+
+    window.location.href = `${authConfig.endpoints.authorization}?${params.toString()}`
+  };
+
+  const signOut = async () => {
+    accessToken.value = null;
+    user.value = null;
+
+    return navigateTo('/')
+  }
+
+  const setBearer = async (token: string, tokenType: string, expires: number) => {
+    accessToken.value = {token, tokenType, expiresAt: Date.now() + expires * 1000};
+    await fetchUser()
+  }
+
+  // Initialize the user if the option is set to true
+  if (options.fetchUserOnInitialization) {
+    await fetchUser()
+  }
+
+  return {
+    user,
+    signIn,
+    signOut,
+    setBearer,
+    authConfig
+  }
+}

src/runtime/plugin.ts

@@ -0,0 +1,35 @@
+import {addRouteMiddleware, defineNuxtPlugin, navigateTo} from '#app'
+import useAuth from "./composables/useAuth"
+
+export default defineNuxtPlugin(() => {
+  addRouteMiddleware('auth', async (to) => {
+    const {user, authConfig, setBearer} = await useAuth()
+
+    if (to.path === authConfig.redirect.callback) {
+      const params = new URLSearchParams(to.hash.substring(1))
+
+      if (params.has('access_token')) {
+        const token = params.get('access_token') as string;
+        const tokenType = params.get('token_type') as string;
+        const expires = params.get('expires_in') as string;
+
+        await setBearer(token, tokenType, parseInt(expires));
+        return navigateTo(authConfig.redirect.home)
+      }
+
+      return
+    }
+
+    if (user.value === undefined) {
+      return navigateTo(authConfig.redirect.login)
+    }
+  })
+
+  addRouteMiddleware('guest', async () => {
+    const {user, authConfig} = await useAuth()
+
+    if (user.value !== undefined) {
+      return navigateTo(authConfig.redirect.home)
+    }
+  })
+})