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#!/usr/bin/python3
import configparser
import concurrent.futures
import signal
import sys

from lib import core
from lib import model
from lib.config import Config

class PyWhoisD():
    """Main class. It reads the configuration options and starts the server"""

    def __init__(self):
        self.config = Config().parser

        self.data = None
        self.daemon = None
        self.classic_server = None
        self.web_server = None

        self.executor = concurrent.futures.ThreadPoolExecutor(max_workers=2)

    def signal_sigint(self, signal, frame):
        print("[+] Received SIGINT signal. Aborting...")

        sys.exit(0)

   # What kind of storage are we using?
    def config_data(self):
        """Config data sources."""

        #At the moment only XML is supported.
        mode = self.config['Storage']['mode']

        if mode == 'xml':
            self.data = model.DataXML()

    def config_daemon(self):
        """Config common information source for all configured servers"""
        
        self.config_data()
        self.daemon = core.Daemon(self.data)

    
    def web(self):
        """Returns true if web server is enabled"""
        
        return self.config['Servers']['web'] == 'yes'

    
    def classic(self):
        """Returns true if classic whois server is enabled"""
        
        return self.config['Servers']['classic'] == 'yes'

    def config_servers(self):
        """Sets up server configuration from config files"""
        
        if self.classic():
            self.classic_server = core.ClassicServer(self.daemon)            
        else:
            print("[+] Classic server is not enabled")
                
        if self.web():
            self.web_server = core.WebServer(self.daemon)
        else:
            print("[+] Web server is not enabled")


    def start_servers(self):
        """Properly configure and start configured servers"""
        
        self.config_servers()

        if self.classic_server:
            print("[+] Starting classic whois server")
            self.executor.submit(self.classic_server.serve_forever)
            
        if self.web_server:
            self.executor.submit(self.web_server.serve_forever)


    def main(self):
        signal.signal(signal.SIGINT, self.signal_sigint)

        self.config_daemon()
        self.start_servers()

        # Wait for running server to finish. Probably never.
        # self.executor.shutdown()

if __name__ == "__main__":
    pwd = PyWhoisD()
    pwd.main()
nihil fit ex nihilo