index.js

/* eslint-disable no-console */
const path = require("path");
const { ManagementClient } = require("auth0");
require("dotenv").config({
  path: path.resolve(process.cwd(), `.env.${process.env.CONTEXT}`),
});

module.exports = {
  onPreBuild: ({ utils }) => {
    console.log(`🔑 Auth0 Plugin startup`);
    const tab = "   ";
    const requiredEnvVariables = [
      "AUTH0_DOMAIN",
      "AUTH0_CLIENT_ID",
      "AUTH0_MANAGEMENT_CLIENT_ID",
      "AUTH0_MANAGEMENT_CLIENT_SECRET",
    ];
    const missingEnvVariables = requiredEnvVariables.filter(
      (envVar) => typeof process.env[envVar] === "undefined"
    );

    if (missingEnvVariables.length > 0) {
      utils.build.failPlugin(
        `${tab} ☠️ Missing environment variables: ${missingEnvVariables.join(
          ", "
        )}`
      );
    }

    return new Promise((resolve) => {
      const deployUrl = process.env.DEPLOY_URL;
      console.log(`${tab} 🧭 Deploy Preview URL will be:`, deployUrl);
      const deployPrimeUrl = process.env.DEPLOY_PRIME_URL;
      if (deployPrimeUrl) {
        console.log(
          `${tab} 🧭 Deploy Preview Prime URL will be:`,
          deployPrimeUrl
        );
      }

      const management = new ManagementClient({
        domain: process.env.AUTH0_DOMAIN,
        clientId: process.env.AUTH0_MANAGEMENT_CLIENT_ID,
        clientSecret: process.env.AUTH0_MANAGEMENT_CLIENT_SECRET,
        scope: "read:clients update:clients",
      });

      management.clients
        .get({ client_id: process.env.AUTH0_CLIENT_ID })
        .then((client) => {
          console.log(`${tab} 🗝 Retrieved Auth0 client: ${client.name}`);

          // Handles empty value https://github.com/romainbessugesmeusy/netlify-plugin-auth0-patch-urls/issues/9
          const clientWebOrigins = client.web_origins || [];

          // If a PRIME URL is given by Netlify, we want to add it.
          // Will be made optional in future release
          const urlOrigins = deployPrimeUrl
            ? [deployUrl, deployPrimeUrl]
            : [deployUrl];

          // Urls that need to be added are the ones that are not already in the Client WebOrigins array.
          const urlsToAdd = urlOrigins.filter(
            (url) => !clientWebOrigins.includes(url)
          );

          if (urlsToAdd.length > 0) {
            console.log(
              `${tab} Adding URLs to the Auth0 Application Web Origins:`
            );
            urlsToAdd.forEach((url) => console.log(`${tab} • ${url}`));
            management.clients.update(
              { client_id: process.env.AUTH0_CLIENT_ID },
              { web_origins: clientWebOrigins.concat(urlsToAdd) },
              (updateError) => {
                if (updateError) {
                  utils.build.failPlugin(
                    `${tab} ☠️ Something wrong happened while trying to patch Auth0 Application`
                  );
                } else {
                  console.log(
                    `${tab} 🍾 Successfully patched Auth0 Application.`
                  );
                }
                resolve();
              }
            );
          } else {
            console.log(
              `${tab} 👍 URL has already been added to Auth0 Application`
            );
            resolve();
          }
        });
    });
  },
};