added utils file

Author: joshika39

auth/utils.ts

@@ -0,0 +1,70 @@
+import {Octokit} from "@octokit/core";
+import type {Account} from 'next-auth'
+
+const getOrgs = async (accessToken: string) => {
+  const octokit = new Octokit({auth: accessToken});
+  const {data} = await octokit.request('GET /user/orgs', {
+    headers: {
+      'X-GitHub-Api-Version': '2022-11-28'
+    }
+  })
+
+  return data;
+}
+
+/**
+ * Check if user is in org
+ * @param allowedOrgs
+ * @param email
+ * @param account
+ */
+export const isUserInOrg = async (allowedOrgs: string[], email: string | null, account: Account | null) => {
+  try {
+    if (account && account.access_token) {
+      const data = await getOrgs(account.access_token);
+      if (data) {
+        const orgs = data.map((org: any) => org.login);
+        if (orgs.some((org) => allowedOrgs.includes(org))) {
+          return true;
+        }
+      }
+    }
+  } catch (e) {
+    console.log(e);
+  }
+  return false;
+}
+
+export type WhiteListedEmail = {
+  email: string;
+}
+
+/**
+ * Check if user is whitelisted
+ * @param emails
+ * @param email
+ */
+export const isWhitelisted = async (emails: WhiteListedEmail[], email: string | null) => {
+  try {
+    if (email && emails.find((w) => w.email === email)) {
+      return true;
+    }
+  } catch (e) {
+    console.log(e);
+  }
+  return false;
+}
+
+/**
+ * Check if user is allowed to access the page
+ * @param allowedOrgs
+ * @param emails
+ * @param email
+ * @param account
+ */
+export const isUserAllowed = async (allowedOrgs: string[], emails: WhiteListedEmail[], email: string | null, account: Account | null) => {
+  const isInOrg = await isUserInOrg(allowedOrgs, email, account);
+  const whitelisted = await isWhitelisted(emails, email);
+
+  return isInOrg || whitelisted;
+}