fix(auth): use Plex PIN flow instead of OAuth2 code exchange

Plex auth uses PIN-based flow, not standard OAuth2 authorization_code.

- backend/auth: POST /api/v2/pins to create PIN, GET /api/v2/pins/{id} to get authToken
- frontend/login: store pinId in sessionStorage before redirect
- frontend/callback: send pinId to backend instead of query code
- backend/index: fix dotenv path resolution for tsx (__dirname returns '.')
This commit is contained in:
2026-04-21 09:27:00 -04:00
parent 7e68f57d69
commit 5751e08eb1
5 changed files with 515 additions and 460 deletions
+202 -183
View File
@@ -1,192 +1,211 @@
import { Router } from 'express';
import axios from 'axios';
import jwt from 'jsonwebtoken';
import { prisma } from '../utils/prisma';
import { asyncHandler } from '../middleware/errorHandler';
import { Router } from "express";
import axios from "axios";
import jwt from "jsonwebtoken";
import { prisma } from "../utils/prisma";
import { asyncHandler } from "../middleware/errorHandler";
const router = Router();
// Plex OAuth configuration
const PLEX_CLIENT_ID = process.env.PLEX_CLIENT_ID || '';
const PLEX_CLIENT_SECRET = process.env.PLEX_CLIENT_SECRET || '';
const PLEX_REDIRECT_URI = process.env.PLEX_REDIRECT_URI || '';
const JWT_SECRET = process.env.JWT_SECRET || 'secret';
const PLEX_CLIENT_ID = process.env.PLEX_CLIENT_ID || "";
const PLEX_REDIRECT_URI = process.env.PLEX_REDIRECT_URI || "";
const JWT_SECRET = process.env.JWT_SECRET || "secret";
// Step 1: Get Plex OAuth URL
router.get('/plex/url', asyncHandler(async (_req, res) => {
const params = new URLSearchParams({
client_id: PLEX_CLIENT_ID,
redirect_uri: PLEX_REDIRECT_URI,
response_type: 'code',
scope: 'openid profile',
'X-Plex-Product': 'CoopCoins',
'X-Plex-Client-Identifier': PLEX_CLIENT_ID,
'X-Plex-Device': 'Web Browser',
'X-Plex-Platform': 'Web'
});
const authUrl = `https://app.plex.tv/auth#?${params.toString()}`;
res.json({ authUrl });
}));
if (!PLEX_CLIENT_ID) {
console.error("ERROR: PLEX_CLIENT_ID not set");
}
// Step 2: Handle Plex OAuth callback
router.post('/plex/callback', asyncHandler(async (req, res) => {
const { code } = req.body;
if (!code) {
return res.status(400).json({ error: 'Authorization code required' });
}
// Exchange code for Plex token
const tokenResponse = await axios.post(
'https://plex.tv/api/v2/oauth/token',
{
code,
client_id: PLEX_CLIENT_ID,
client_secret: PLEX_CLIENT_SECRET,
grant_type: 'authorization_code'
},
{
headers: {
'Accept': 'application/json',
'X-Plex-Client-Identifier': PLEX_CLIENT_ID
}
}
);
const plexToken = tokenResponse.data.access_token;
// Get user info from Plex
const userResponse = await axios.get('https://plex.tv/api/v2/user', {
headers: {
'X-Plex-Token': plexToken,
'X-Plex-Client-Identifier': PLEX_CLIENT_ID,
'Accept': 'application/json'
}
});
const plexUser = userResponse.data;
// Check if user exists, create if not
let user = await prisma.user.findUnique({
where: { plexId: plexUser.id }
});
if (!user) {
user = await prisma.user.create({
data: {
plexId: plexUser.id,
plexUsername: plexUser.username || plexUser.email,
email: plexUser.email,
// Check if user is Plex admin (implement your logic)
isAdmin: false
}
});
} else {
// Update user info
user = await prisma.user.update({
where: { id: user.id },
data: {
plexUsername: plexUser.username || plexUser.email,
email: plexUser.email
}
});
}
// Create session
const session = await prisma.session.create({
data: {
userId: user.id,
token: jwt.sign({ userId: user.id }, JWT_SECRET, { expiresIn: '7d' }),
expiresAt: new Date(Date.now() + 7 * 24 * 60 * 60 * 1000)
}
});
// Generate JWT
const token = jwt.sign(
{
userId: user.id,
plexId: user.plexId,
isAdmin: user.isAdmin
},
JWT_SECRET,
{ expiresIn: '7d' }
);
res.json({
token,
sessionToken: session.token,
user: {
id: user.id,
plexId: user.plexId,
plexUsername: user.plexUsername,
email: user.email,
isAdmin: user.isAdmin,
walletAddress: user.walletAddress,
totalEarned: user.totalEarned,
totalSpent: user.totalSpent
}
});
}));
// Step 1: Generate Plex PIN and return auth URL
router.get(
"/plex/url",
asyncHandler(async (_req, res) => {
if (!PLEX_CLIENT_ID) {
return res.status(500).json({ error: "Plex not configured" });
}
// Verify token
router.get('/verify', asyncHandler(async (req, res) => {
const authHeader = req.headers.authorization;
if (!authHeader?.startsWith('Bearer ')) {
return res.status(401).json({ error: 'No token provided' });
}
const token = authHeader.substring(7);
try {
const decoded = jwt.verify(token, JWT_SECRET) as any;
const user = await prisma.user.findUnique({
where: { id: decoded.userId }
});
if (!user || !user.isActive) {
return res.status(401).json({ error: 'User not found or inactive' });
}
res.json({
user: {
id: user.id,
plexId: user.plexId,
plexUsername: user.plexUsername,
email: user.email,
isAdmin: user.isAdmin,
walletAddress: user.walletAddress,
totalEarned: user.totalEarned,
totalSpent: user.totalSpent
}
});
} catch (error) {
res.status(401).json({ error: 'Invalid token' });
}
}));
const pinResponse = await axios.post(
"https://plex.tv/api/v2/pins?strong=true",
null,
{
headers: {
Accept: "application/json",
"X-Plex-Client-Identifier": PLEX_CLIENT_ID,
"X-Plex-Product": "CoopCoins",
"X-Plex-Version": "1.0.0",
"X-Plex-Device": "Web Browser",
"X-Plex-Platform": "Web",
},
},
);
// Logout
router.post('/logout', asyncHandler(async (req, res) => {
const authHeader = req.headers.authorization;
if (authHeader?.startsWith('Bearer ')) {
const token = authHeader.substring(7);
try {
const decoded = jwt.verify(token, JWT_SECRET) as any;
await prisma.session.deleteMany({
where: { userId: decoded.userId }
});
} catch {
// Invalid token, ignore
}
}
res.json({ message: 'Logged out successfully' });
}));
const pin = pinResponse.data;
const authUrl = `https://app.plex.tv/auth#?clientID=${encodeURIComponent(PLEX_CLIENT_ID)}&code=${pin.code}&forwardUrl=${encodeURIComponent(PLEX_REDIRECT_URI)}`;
res.json({ authUrl, pinId: pin.id });
}),
);
// Step 2: Exchange PIN for Plex token and create user session
router.post(
"/plex/callback",
asyncHandler(async (req, res) => {
const { pinId } = req.body;
if (!pinId) {
return res.status(400).json({ error: "PIN ID required" });
}
// Check PIN status to get auth token
const pinResponse = await axios.get(
`https://plex.tv/api/v2/pins/${pinId}`,
{
headers: {
Accept: "application/json",
"X-Plex-Client-Identifier": PLEX_CLIENT_ID,
},
},
);
const pin = pinResponse.data;
if (!pin.authToken) {
return res.status(400).json({ error: "Authentication not completed" });
}
const plexToken = pin.authToken;
// Get user info from Plex
const userResponse = await axios.get("https://plex.tv/api/v2/user", {
headers: {
"X-Plex-Token": plexToken,
"X-Plex-Client-Identifier": PLEX_CLIENT_ID,
Accept: "application/json",
},
});
const plexUser = userResponse.data;
// Find or create user
let user = await prisma.user.findUnique({
where: { plexId: plexUser.id },
});
if (!user) {
user = await prisma.user.create({
data: {
plexId: plexUser.id,
plexUsername: plexUser.username || plexUser.email,
email: plexUser.email,
isAdmin: false,
},
});
} else {
user = await prisma.user.update({
where: { id: user.id },
data: {
plexUsername: plexUser.username || plexUser.email,
email: plexUser.email,
},
});
}
// Create session
const session = await prisma.session.create({
data: {
userId: user.id,
token: jwt.sign({ userId: user.id }, JWT_SECRET, { expiresIn: "7d" }),
expiresAt: new Date(Date.now() + 7 * 24 * 60 * 60 * 1000),
},
});
// Generate JWT
const token = jwt.sign(
{
userId: user.id,
plexId: user.plexId,
isAdmin: user.isAdmin,
},
JWT_SECRET,
{ expiresIn: "7d" },
);
res.json({
token,
sessionToken: session.token,
user: {
id: user.id,
plexId: user.plexId,
plexUsername: user.plexUsername,
email: user.email,
isAdmin: user.isAdmin,
walletAddress: user.walletAddress,
totalEarned: user.totalEarned,
totalSpent: user.totalSpent,
},
});
}),
);
router.get(
"/verify",
asyncHandler(async (req, res) => {
const authHeader = req.headers.authorization;
if (!authHeader?.startsWith("Bearer ")) {
return res.status(401).json({ error: "No token provided" });
}
const token = authHeader.substring(7);
try {
const decoded = jwt.verify(token, JWT_SECRET) as any;
const user = await prisma.user.findUnique({
where: { id: decoded.userId },
});
if (!user || !user.isActive) {
return res.status(401).json({ error: "User not found or inactive" });
}
res.json({
user: {
id: user.id,
plexId: user.plexId,
plexUsername: user.plexUsername,
email: user.email,
isAdmin: user.isAdmin,
walletAddress: user.walletAddress,
totalEarned: user.totalEarned,
totalSpent: user.totalSpent,
},
});
} catch (error) {
res.status(401).json({ error: "Invalid token" });
}
}),
);
router.post(
"/logout",
asyncHandler(async (req, res) => {
const authHeader = req.headers.authorization;
if (authHeader?.startsWith("Bearer ")) {
const token = authHeader.substring(7);
try {
const decoded = jwt.verify(token, JWT_SECRET) as any;
await prisma.session.deleteMany({
where: { userId: decoded.userId },
});
} catch {
// Ignore invalid tokens on logout
}
}
res.json({ message: "Logged out successfully" });
}),
);
export { router as authRouter };