backend/src/authchecker.ts

51 lines
1.8 KiB
TypeScript

import * as jwt from "jsonwebtoken";
import { Action, HttpError } from "routing-controllers";
// -----------
const sampletoken = jwt.sign({
"permissions": {
"TRACKS": ["read", "update", "delete", "add"]
// "TRACKS": []
}
}, process.env.JWT_SECRET || "secretjwtsecret")
console.log(`sampletoken: ${sampletoken}`);
// -----------
const authchecker = async (action: Action, permissions: string | string[]) => {
let required_permissions = undefined
if (typeof permissions === "string") {
required_permissions = [permissions]
} else {
required_permissions = permissions
}
// const token = action.request.headers["authorization"];
const provided_token = action.request.query["auth"];
let jwtPayload = undefined
try {
jwtPayload = <any>jwt.verify(provided_token, process.env.JWT_SECRET || "secretjwtsecret");
} catch (error) {
throw new HttpError(401, "jwt_illegal")
}
if (jwtPayload.permissions) {
action.response.local = {}
action.response.local.jwtPayload = jwtPayload.permissions
required_permissions.forEach(r => {
const permission_key = r.split(":")[0]
const actual_accesslevel_for_permission = jwtPayload.permissions[permission_key]
const permission_access_level = r.split(":")[1]
if (actual_accesslevel_for_permission.includes(permission_access_level)) {
return true;
} else {
throw new HttpError(403, "no")
}
});
} else {
throw new HttpError(403, "no")
}
//
try {
jwt.verify(provided_token, process.env.JWT_SECRET || "secretjwtsecret");
return true
} catch (error) {
return false
}
}
export default authchecker