from radicale.auth import BaseAuth
import urllib.request
import json
import hashlib
import requests


class Auth(BaseAuth):
    def get_server(self):
        return self.configuration.get("auth", "server")

    def is_authenticated(self, user, password):
        if user is None:
            return False

        res1 = requests.post(self.get_server + "/api/login?uid=" + user)
        data1 = res1.json()

        if "error" in data:
            return False

        salt = data["salt"]

        id = self.configuration.get("auth", "client_id")
        secret = self.configuration.get("auth", "client_secret")
        password = hashlib.sha512(salt + password.encode()).hexdigest())
        res2=requests.post("/api/internel/password", params = {
                           "client_id": id, "client_secret": secret}, json = {"uid": user, "password": password})
        data2=res2.json();

        if "success" in data2 and data["success"] is True:
            return True
        return False

    def map_login_to_user(self, login):
        # Get uid from username
        if login is None or login is "":
            return None
        req_data=dict()
        res=requests.post(self.get_server + "/api/login?username=" + login)
        data=res.json()
        if "error" in data:
            return None
        return data["uid"]