modemapi

#!/usr/bin/env python
import requests
import sys


def encrypt(word):
    # from the javascript
    phrase = "e5dl12XYVggihggafXWf0f2YSf2Xngd1"
    # (a[2 * n] = (240 & t[n % t.length].charCodeAt()) | ((15 & r) ^ (15 & t[n % t.length].charCodeAt()))), (a[2 * n + 1] = (240 & t[n % t.length].charCodeAt()) | ((r >> 4) ^ (15 & t[n % t.length].charCodeAt())));
    a = []
    for idx, char in enumerate(word):
        r = ord(char)
        positioncode = ord(phrase[idx % len(phrase)])
        a.append((240 & positioncode) | ((15 & r) ^ (15 & positioncode)))
        a.append((240 & positioncode) | ((r >> 4) ^ (15 & positioncode)))
    return "".join(chr(char) for char in a)


class APIError(Exception):
    pass


class API:
    def __init__(self, url):
        self.session = requests.Session()
        self._url = url
        self.session.headers = {
            "Accept": "application/json, text/javascript, */*; " + "q=0.01",
            "Content-Type": "application/json",
            "Referer": f"{url}/index.html",
            "_TclRequestVerificationKey": "KSDHSDFOGQ5WERYTUIQWERTYUISDFG1HJZXCVCXBN2GDSMNDHKVKFsVBNf",
        }

    def _command(self, command, **kwargs):
        message = {"jsonrpc": "2.0", "method": command, "id": "12", "params": kwargs}
        resp = self.session.post(self._url + "/jrd/webapi", json=message)
        result = resp.json()
        if "result" not in result:
            raise APIError(result["error"])
        return result["result"]

    def login(self, password, username="admin"):
        result = self._command(
            "Login", UserName=encrypt(username), Password=encrypt(password)
        )
        token = result["token"]
        self.session.headers["_TclRequestVerificationToken"] = encrypt(str(token))

    def reboot(self):
        self._command("SetDeviceReboot")


if __name__ == "__main__":
    import argparse

    parser = argparse.ArgumentParser()
    parser.add_argument("--url", required=True)
    parser.add_argument("--password", required=True)
    parser.add_argument("--cmd", default="reboot")
    options = parser.parse_args()
    api = API(options.url)
    api.login(options.password)
    func = getattr(api, options.cmd, None)
    if not func:
        print("No such command", file=sys.stderr)
    else:
        print(func())