144 lines
3.2 KiB
Python
144 lines
3.2 KiB
Python
#!/usr/bin/env python3
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import sys
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oldexcepthook = sys.excepthook
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def newexcepthook(type,value,traceback):
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oldexcepthook(type,value,traceback)
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#input("Press ENTER to quit.")
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sys.excepthook = newexcepthook
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import os
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p = os.path.join
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pUp = os.path.dirname
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s = False
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if getattr(sys, 'frozen', False) and hasattr(sys, '_MEIPASS'):
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s = os.path.realpath(sys.executable)
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else:
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s = os.path.realpath(__file__)
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sp = pUp(s)
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# script start
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import subprocess
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import socket
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import time
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def eprint(*args, **kwargs): print(*args, file=sys.stderr, **kwargs)
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bufferSize = 4096 # max buffer size in bytes for receiving data, lower values shouldn't reduce the delay
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bufferSizeStdin = 128 # min buffer size for buffer, lower values DO reduce delay but raise CPU usage
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timeout = 15 # timeout in seconds
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connection = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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unbufferedStdout = os.fdopen(sys.stdout.fileno(),"wb",0) # Make unbuffered stdout
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def listToCommand(lst):
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cmd = ""
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for arg in lst:
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arg = arg.replace("\\","\\\\")
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arg = arg.replace(",","\\,")
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cmd += arg + ","
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return cmd[:-1]
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def commandToList(cmd):
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args = []
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cArg = ""
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escape = False
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for letter in cmd:
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if escape == True:
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cArg += letter
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escape = False
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continue
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if letter == "\\":
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escape = True
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continue
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if letter == ",":
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if cArg == "": continue
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args.append(cArg)
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cArg = ""
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continue
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cArg += letter
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args.append(cArg)
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return args
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def recv(conn,l):
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start = time.process_time()
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timeo = conn.gettimeout()
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bytes = b""
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while l > 0:
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b = conn.recv(l)
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if b == b"": raise ConnectionResetError
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if time.process_time() - start > timeo: raise TimeoutError
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bytes += b
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l -= len(b)
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return bytes
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def getResponse(connection,maxLength = 0):
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data = b''
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data = recv(connection,4)
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if not data: return False
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nul = recv(connection,1)
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if not nul: return False
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if nul != b"\x00": return False
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requestLength = int.from_bytes(data,"big")
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if maxLength != 0 and requestLength > maxLength: return False
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return recv(connection,requestLength)
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def sendResponse(connection,data):
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connection.sendall(len(data).to_bytes(4,"big") + b"\x00" + data)
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def stringToAddressTuple(addr):
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rtn = addr.rsplit(":",1)
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rtn[1] = int(rtn[1])
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rtn = tuple(rtn)
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return rtn
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def main():
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global serverAddr
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serverAddr = stringToAddressTuple(sys.argv[1])
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global bufferSize
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eprint("Connecting to server...")
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connection.settimeout(timeout)
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connection.connect(serverAddr)
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eprint("Sending payload...")
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sendResponse(connection,sys.argv[2].encode("utf-8"))
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cmd = commandToList(sys.argv[2])
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args = {}
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for arg in cmd[1:]:
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argSplit = arg.split("=",1)
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args[argSplit[0]] = argSplit[1]
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cmd = cmd[0]
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if cmd == "watch":
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try:
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eprint("Receiving data...")
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while True:
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data = connection.recv(bufferSize)
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if data == b"":
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eprint("Connection closed.")
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return
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unbufferedStdout.write(data)
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except:
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connection.close()
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raise
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if cmd == "broadcast":
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try:
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eprint("Sending data...")
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while True:
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data = sys.stdin.buffer.read(bufferSizeStdin)
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connection.sendall(data)
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except:
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connection.close()
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raise
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if __name__ == '__main__':
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main()
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