"""
//  -------------------------------------------------------------
//  author        Giga
//  project       qeeqbox/honeypots
//  email         gigaqeeq@gmail.com
//  description   app.py (CLI)
//  licensee      AGPL-3.0
//  -------------------------------------------------------------
//  contributors list qeeqbox/honeypots/graphs/contributors
//  -------------------------------------------------------------
"""

from warnings import filterwarnings

filterwarnings(action="ignore", module=".*OpenSSL.*")

from twisted.protocols.sip import Base
from twisted.internet import reactor
from twisted.python import log as tlog
from subprocess import Popen
from os import path, getenv
from honeypots.helper import (
    close_port_wrapper,
    get_free_port,
    kill_server_wrapper,
    server_arguments,
    setup_logger,
    disable_logger,
    set_local_vars,
    check_if_server_is_running,
)
from uuid import uuid4
from contextlib import suppress


class QSIPServer:
    def __init__(self, **kwargs):
        self.auto_disabled = None
        self.process = None
        self.uuid = "honeypotslogger" + "_" + __class__.__name__ + "_" + str(uuid4())[:8]
        self.config = kwargs.get("config", "")
        if self.config:
            self.logs = setup_logger(__class__.__name__, self.uuid, self.config)
            set_local_vars(self, self.config)
        else:
            self.logs = setup_logger(__class__.__name__, self.uuid, None)
        self.ip = kwargs.get("ip", None) or (hasattr(self, "ip") and self.ip) or "0.0.0.0"
        self.port = (
            (kwargs.get("port", None) and int(kwargs.get("port", None)))
            or (hasattr(self, "port") and self.port)
            or 5060
        )
        self.username = (
            kwargs.get("username", None) or (hasattr(self, "username") and self.username) or "test"
        )
        self.password = (
            kwargs.get("password", None) or (hasattr(self, "password") and self.password) or "test"
        )
        self.options = (
            kwargs.get("options", "")
            or (hasattr(self, "options") and self.options)
            or getenv("HONEYPOTS_OPTIONS", "")
            or ""
        )
        disable_logger(1, tlog)

    def sip_server_main(self):
        _q_s = self

        class CustomSIPServer(Base):
            def handle_request(self, message, addr):
                headers = {}

                _q_s.logs.info(
                    {
                        "server": "sip_server",
                        "action": "connection",
                        "src_ip": addr[0],
                        "src_port": addr[1],
                    }
                )

                def check_bytes(string):
                    if isinstance(string, bytes):
                        return string.decode()
                    else:
                        return str(string)

                for item, value in message.headers.items():
                    headers.update({check_bytes(item): ",".join(map(check_bytes, value))})

                _q_s.logs.info(
                    {
                        "server": "sip_server",
                        "action": "request",
                        "src_ip": addr[0],
                        "src_port": addr[1],
                        "data": headers,
                    }
                )
                response = self.responseFromRequest(200, message)
                response.creationFinished()
                self.deliverResponse(response)

        reactor.listenUDP(port=self.port, protocol=CustomSIPServer(), interface=self.ip)
        reactor.run()

    def run_server(self, process=False, auto=False):
        status = "error"
        run = False
        if process:
            if auto and not self.auto_disabled:
                port = get_free_port()
                if port > 0:
                    self.port = port
                    run = True
            elif self.close_port() and self.kill_server():
                run = True

            if run:
                self.process = Popen(
                    [
                        "python3",
                        path.realpath(__file__),
                        "--custom",
                        "--ip",
                        str(self.ip),
                        "--port",
                        str(self.port),
                        "--options",
                        str(self.options),
                        "--config",
                        str(self.config),
                        "--uuid",
                        str(self.uuid),
                    ]
                )
                if self.process.poll() is None and check_if_server_is_running(self.uuid):
                    status = "success"

            self.logs.info(
                {
                    "server": "sip_server",
                    "action": "process",
                    "status": status,
                    "src_ip": self.ip,
                    "src_port": self.port,
                    "dest_ip": self.ip,
                    "dest_port": self.port,
                }
            )

            if status == "success":
                return True
            else:
                self.kill_server()
                return False
        else:
            self.sip_server_main()

    def close_port(self):
        ret = close_port_wrapper("sip_server", self.ip, self.port, self.logs)
        return ret

    def kill_server(self):
        ret = kill_server_wrapper("sip_server", self.uuid, self.process)
        return ret

    def test_server(self, ip=None, port=None, username=None, password=None):
        with suppress(Exception):
            from socket import socket, AF_INET, SOCK_DGRAM, IPPROTO_UDP

            _ip = ip or self.ip
            _port = port or self.port
            _username = username or self.username
            _password = password or self.password
            sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)
            sock.sendto(
                b"INVITE sip:user_1@test.test SIP/2.0\r\nTo: <sip:user_2@test.test>\r\nFrom: sip:user_3@test.test.test;tag=none\r\nCall-ID: 1@0.0.0.0\r\nCSeq: 1 INVITE\r\nContact: sip:user_3@test.test.test\r\nVia: SIP/2.0/TCP 0.0.0.0;branch=34uiddhjczqw3mq23\r\nContent-Length: 1\r\n\r\nT",
                (_ip, _port),
            )
            sock.close()


if __name__ == "__main__":
    parsed = server_arguments()
    if parsed.docker or parsed.aws or parsed.custom:
        QSIPServer = QSIPServer(
            ip=parsed.ip,
            port=parsed.port,
            username=parsed.username,
            password=parsed.password,
            options=parsed.options,
            config=parsed.config,
        )
        QSIPServer.run_server()
