82 lines
2.2 KiB
TypeScript
82 lines
2.2 KiB
TypeScript
import { Handlers } from "$fresh/server.ts";
|
|
import { create, getNumericDate } from "https://deno.land/x/djwt@v2.2/mod.ts";
|
|
import { oauth2Client } from "@lib/auth.ts";
|
|
import { getCookies, setCookie } from "@std/http/cookie";
|
|
import { codeChallengeMap } from "./login.ts";
|
|
import { GITEA_SERVER, JWT_SECRET, SESSION_DURATION } from "@lib/env.ts";
|
|
import { GiteaOauthUser } from "@lib/types.ts";
|
|
import { BadRequestError } from "@lib/errors.ts";
|
|
import { db } from "@lib/sqlite/sqlite.ts";
|
|
import { userTable } from "@lib/sqlite/schema.ts";
|
|
import { eq } from "drizzle-orm";
|
|
|
|
export const handler: Handlers = {
|
|
async GET(request) {
|
|
if (!JWT_SECRET) {
|
|
throw new BadRequestError();
|
|
}
|
|
|
|
// Exchange the authorization code for an access token
|
|
const cookies = getCookies(request.headers);
|
|
|
|
const stored = codeChallengeMap.get(cookies["code_challenge"]);
|
|
if (!stored) {
|
|
throw new BadRequestError();
|
|
}
|
|
|
|
const { codeVerifier, redirect } = stored;
|
|
|
|
const tokens = await oauth2Client.code.getToken(request.url, {
|
|
codeVerifier,
|
|
});
|
|
|
|
// Use the access token to make an authenticated API request
|
|
const userInfo = `${GITEA_SERVER}/login/oauth/userinfo`;
|
|
const userResponse = await fetch(userInfo, {
|
|
headers: {
|
|
Authorization: `token ${tokens.accessToken}`,
|
|
},
|
|
});
|
|
|
|
const oauthUser = await userResponse.json() as GiteaOauthUser;
|
|
|
|
let user = await db.select().from(userTable).where(
|
|
eq(userTable.name, oauthUser.name),
|
|
).limit(1).then((users) => users[0]);
|
|
|
|
if (!user) {
|
|
const res = await db.insert(userTable).values({
|
|
id: crypto.randomUUID(),
|
|
email: oauthUser.email,
|
|
name: oauthUser.name,
|
|
}).returning();
|
|
user = res[0];
|
|
}
|
|
|
|
const jwt = await create({ alg: "HS512", type: "JWT" }, {
|
|
id: user.id,
|
|
name: user.name,
|
|
exp: getNumericDate(SESSION_DURATION),
|
|
}, JWT_SECRET);
|
|
|
|
const headers = new Headers({
|
|
location: redirect || "/",
|
|
});
|
|
|
|
setCookie(headers, {
|
|
name: "session_cookie",
|
|
value: jwt,
|
|
path: "/",
|
|
maxAge: SESSION_DURATION,
|
|
httpOnly: false,
|
|
secure: true,
|
|
sameSite: "Lax",
|
|
});
|
|
|
|
return new Response(null, {
|
|
headers,
|
|
status: 302,
|
|
});
|
|
},
|
|
};
|