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auth.js
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auth.js
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const argon2 = require("argon2");
const jwt = require("jsonwebtoken");
const hashingOptions = {
type: argon2.argon2id,
memoryCost: 2 ** 16,
timeCost: 5,
parallelism: 1,
};
const hashPassword = (req, res, next) => {
argon2
.hash(req.body.password, hashingOptions)
.then((hashedPassword) => {
req.body.hashedPassword = hashedPassword;
delete req.body.password;
next();
})
.catch((err) => {
console.error(err);
res.sendStatus(500);
});
};
const verifyPassword = (req, res) => {
argon2
.verify(req.user.hashedPassword, req.body.password)
.then((isVerified) => {
if (isVerified) {
const payload = { sub: req.user.id };
const token = jwt.sign(payload, process.env.JWT_SECRET, {
expiresIn: "1h",
});
delete req.user.hashedPassword;
res.send({ token, user: req.user });
} else {
res.sendStatus(401);
}
})
.catch((err) => {
console.error(err);
res.sendStatus(500);
});
};
const verifyToken = (req, res, next) => {
try {
const authorizationHeader = req.get("Authorization");
if (authorizationHeader == null) {
throw new Error("Authorization header is missing");
}
const [type, token] = authorizationHeader.split(" ");
if (type !== "Bearer") {
throw new Error("Authorization header has not the 'Bearer' type");
}
req.payload = jwt.verify(token, process.env.JWT_SECRET);
next();
} catch (err) {
console.error(err);
res.sendStatus(401);
}
};
// PUT /api/users/:id et DELETE /api/users/:id ne devraient fonctionner que si l'id correspond à celui du payload du token (req.payload.sub). Si ce n'est pas le cas, réponds avec un statut 403 ("Forbidden").
const verifyId = (req, res, next) => {
const id = parseInt(req.params.id);
try {
if(req.payload.sub !== id) {
throw new Error("You're not allowed!");
}
next();
} catch(err) {
console.error(err);
res.sendStatus(403);
}
};
module.exports = {
hashPassword,
verifyPassword,
verifyToken,
verifyId,
};