87 lines
2.4 KiB
TypeScript
87 lines
2.4 KiB
TypeScript
import { HandlerContext, Handlers, PageProps } from "$fresh/server.ts";
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import { compare } from "https://deno.land/x/bcrypt@v0.4.1/mod.ts";
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import { Page } from "@/components/Page.tsx";
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import { query } from "@/db/mod.ts";
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type UserID = string;
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interface LoginError {
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message: string;
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}
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async function invalidLogin<LoginError>(context: HandlerContext<LoginError>) {
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return await context.render({ message: "Invalid login" } as LoginError);
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}
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export const handler: Handlers<UserID | LoginError | null> = {
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async POST(request: Request, context) {
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const formData = (await request.formData());
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const username = formData.get("username");
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const password = formData.get("password");
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if (!username) {
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return await context.render({ message: "no username provided" });
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}
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if (!password) {
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return await context.render({ message: "no password provided" });
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}
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const result = await query<
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{ id: string; username: string; password_digest: string }
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>(
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`select * from "user" where username = $1`,
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[username],
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);
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if (result == null || result.rows.length < 1) {
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return await invalidLogin(context);
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}
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const { rows: [{ id, password_digest }] } = result;
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if (await compare(password.toString(), password_digest)) {
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return await context.render(id);
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} else {
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return await invalidLogin(context);
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}
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},
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};
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export default function Login({ data }: PageProps) {
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if (typeof data == "string") {
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return LoginSuccessful(data);
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} else {
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return LoginForm(data);
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}
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}
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function LoginSuccessful(_userId: UserID) {
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return (
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<Page>
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<p>
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You are now logged in. Let's go to your{" "}
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<a href="/dashboard">dashboard</a>!
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</p>
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</Page>
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);
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}
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function LoginForm(props?: LoginError | null) {
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return (
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<Page>
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{props != null &&
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(
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<p class="text-red-500">
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<strong>Error</strong>: {props.message}
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</p>
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)}
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<h1 class="text-4xl mb-4 outline-white">
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Log in to your account
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</h1>
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<form class="flex flex-col max-w-lg" method="post">
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<label for="username">Username</label>
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<input type="text" name="username" />
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<label for="password">Password</label>
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<input type="password" name="password" />
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<input class="mt-2" type="submit" value="Login" />
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</form>
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</Page>
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);
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}
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