chore: Move all routes under routes directory (#2513)

closes #2504

server/routes/auth/index.js

@@ -0,0 +1,68 @@
+// @flow
+import passport from "@outlinewiki/koa-passport";
+import { addMonths } from "date-fns";
+import debug from "debug";
+import Koa from "koa";
+import bodyParser from "koa-body";
+import Router from "koa-router";
+import { AuthenticationError } from "../../errors";
+import auth from "../../middlewares/authentication";
+import validation from "../../middlewares/validation";
+import { Collection, Team, View } from "../../models";
+import providers from "./providers";
+
+const log = debug("server");
+const app = new Koa();
+const router = new Router();
+
+router.use(passport.initialize());
+
+// dynamically load available authentication provider routes
+providers.forEach((provider) => {
+  if (provider.enabled) {
+    router.use("/", provider.router.routes());
+    log(`loaded ${provider.name} auth provider`);
+  }
+});
+
+router.get("/redirect", auth(), async (ctx) => {
+  const user = ctx.state.user;
+  const jwtToken = user.getJwtToken();
+
+  if (jwtToken === ctx.params.token) {
+    throw new AuthenticationError("Cannot extend token");
+  }
+
+  // ensure that the lastActiveAt on user is updated to prevent replay requests
+  await user.updateActiveAt(ctx.request.ip, true);
+
+  ctx.cookies.set("accessToken", jwtToken, {
+    httpOnly: false,
+    expires: addMonths(new Date(), 3),
+  });
+
+  const [team, collection, view] = await Promise.all([
+    Team.findByPk(user.teamId),
+    Collection.findOne({
+      where: { teamId: user.teamId },
+      order: [["index", "ASC"]],
+    }),
+    View.findOne({
+      where: { userId: user.id },
+    }),
+  ]);
+
+  const hasViewedDocuments = !!view;
+
+  ctx.redirect(
+    !hasViewedDocuments && collection
+      ? `${team.url}${collection.url}`
+      : `${team.url}/home`
+  );
+});
+
+app.use(bodyParser());
+app.use(validation());
+app.use(router.routes());
+
+export default app;