128 lines
3.4 KiB
Python
Executable File
128 lines
3.4 KiB
Python
Executable File
#!/usr/bin/env python3
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import ssl, socket, subprocess, time
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import configparser
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CONFIG = "ding_server.cfg"
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def getTimestamp():
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t = "[" + time.strftime("%Y-%m-%d %H:%M:%S") + "]"
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return t
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def execFromConfig(option):
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cfg = configparser.SafeConfigParser()
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cfg.read(CONFIG)
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try:
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cmd = cfg.get("Commands", option).replace("\"", "").replace("\'", "")
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cmd = cmd.split(" ")
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try:
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subprocess.Popen(cmd)
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return 0
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except FileNotFoundError:
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print(getTimestamp(), "Can't execute", cmd, ". File not found.")
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return 2
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except configparser.NoOptionError:
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print(getTimestamp(), "No execution set:", option)
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return 1
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def main():
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while True:
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newsocket, fromaddr = bindsocket.accept()
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try:
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connstream = context.wrap_socket(newsocket, server_side=True)
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print(getTimestamp(), "Incoming connection:", fromaddr[0])
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connstream.send(b"OK 1337\n")
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con_loop = True
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while con_loop:
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try:
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buf = connstream.recv(1024)
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if not buf: break
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buf = buf.decode("utf-8").upper()
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except ssl.SSLEOFError:
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print(getTimestamp(), "SSL-EOF-Error.")
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con_loop = False
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except ConnectionResetError:
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print(getTimestamp(), "Connection reset.")
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serve()
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print(getTimestamp(), " ", fromaddr[0], ": ", buf, sep="")
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retval = execFromConfig(buf)
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if(retval == 0):
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connstream.send(b"OK CMD")
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elif(retval == 1):
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connstream.send(b"ERR NO_CMD")
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elif(retval == 2):
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connstream.send(b"ERR CMD_ERR")
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except ssl.SSLError as e:
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print(getTimestamp(), e)
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except EOFError:
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print(getTimestamp(), "EOF")
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def init():
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global host, port, cafile, certfile, keyfile, context, bindsocket
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cfg = configparser.SafeConfigParser()
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cfg.read(CONFIG)
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try:
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host=cfg.get("Server", "host").replace("\"","").replace("\'","")
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port=int(cfg.get("Server", "port").replace("\"","").replace("\'",""))
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cafile=cfg.get("Security", "cafile").replace("\"","").replace("\'","")
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certfile=cfg.get("Security", "certfile").replace("\"","").replace("\'","")
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keyfile=cfg.get("Security", "keyfile").replace("\"","").replace("\'","")
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except configparser.NoOptionError as e:
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print("Error in configuration file:", e)
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quit(1)
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try:
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context = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH, cafile=cafile)
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context.load_cert_chain(certfile=certfile, keyfile=keyfile)
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context.verify_mode = ssl.CERT_REQUIRED
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context.load_verify_locations(cafile=cafile)
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except FileNotFoundError as e:
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print(e)
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print("Please check your paths in the config file. (Have you forgotten to generate the Certificates?)")
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quit(2)
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try:
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bindsocket = socket.socket()
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bindsocket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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bindsocket.bind((host, port))
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bindsocket.listen(5)
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except socket.gaierror:
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print("Error: Hostname error. Name or service not known.")
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quit(1)
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except PermissionError:
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print("Error: Can't bind for port number ", port, ". Permission denied.", sep="")
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quit(1)
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print("Running ding server on ", host, ":", port,
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"\nCAFile: ", cafile,
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"\nCertfile: ", certfile,
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"\nKeyfile: ", keyfile,
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"\n===========",
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sep="")
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if(__name__ == "__main__"):
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try:
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init()
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main()
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except KeyboardInterrupt:
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print("\r\rServer stopped.")
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