Removed Disc0very (obsolete)

Shared/Disc0very.py

@@ -1,97 +0,0 @@
-from socket import *
-from random import getrandbits
-from random import choice
-from time import time
-from time import sleep
-import Utils
-import Logging
-from _thread import start_new_thread
-
-
-HEY = "HEY".encode()
-NAY = "NAY".encode()
-WHAT = "WHAT".encode()
-
-
-class MissingInterfaceError(TypeError):
-	def __init__(self):
-		super(TypeError, self).__init__("platform requires interface parameter.")	
-
-
-class Disc0very:
-	def __init__(self, port, interface=None, max_peers=32):
-		self.port = port
-		self.sock = socket(AF_INET, SOCK_DGRAM)
-		self.sock.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
-		self.sock.setsockopt(SOL_SOCKET, SO_BROADCAST, 1)
-		self.sock.bind(("", self.port))
-		self.ip_address = Utils.get_ip_address(interface)
-		self.discovering = False
-		self.enlisting = False
-		
-
-
-	# Not thread-safe if ran in parallel with __enlist
-	def discover(self, time_out=1):
-		self.sock.setblocking(False)
-		end_time = time() + time_out
-		servers = []
-		self.sock.sendto(HEY, ('255.255.255.255', self.port))
-		while time() < end_time:
-			try:
-				data, address = self.sock.recvfrom(512)
-				address = address[0]
-				# If enlisted peer responds with ip address
-				if data not in (HEY, NAY) and address != self.ip_address and not data in servers:
-					servers.append(data)
-				# If another peer is currently discovering
-				elif data == HEY and address != self.ip_address:
-					self.sock.sendto(NAY, ('255.255.255.255', self.port))
-					return self.discover(time_out=time_out)
-				# If another peer gave up
-				elif data == NAY and address != self.ip_address:
-					return None
-			except BlockingIOError:
-				sleep((choice(range(1, 10)) / 2) / 10)
-		if len(servers) == 0:
-			return None
-		elif len(servers) > 1:
-			self.sock.sendto(WHAT, ('255.255.255.255', self.port))
-		else:
-			return servers[0]
-		
-
-	def enlist(self, interface, blocking=False):
-		if blocking:
-			self.__enlist(interface)
-		else:
-			start_new_thread(self.__enlist, (interface, ))
-
-
-	# Not thread-safe if ran in parallel with discover
-	# Interface should always be provided when using a Wallaby
-	# because wlan0 and wlan1 have an IP address assigned
-	def __enlist(self, interface=None):
-		self.sock.setblocking(True)
-		data = ""
-		while True:
-			try:
-				data, address = self.sock.recvfrom(512)
-			except BlockingIOError:
-				sleep(0.1)
-			if data == HEY:
-				self.sock.sendto(self.ip_address.encode(), ('255.255.255.255', self.port))
-			elif data == WHAT:
-				Logging.error("Apparently more than one server is running. "
-					"Investigating...")
-			 	# Discover and if other server is found shutdown
-
-
-if __name__ == "__main__":
-	disc0very = Disc0very(3077)
-	server = disc0very.discover()
-	if not server:
-		print("enlisting")
-		disc0very.enlist(None, blocking=True)
-	else:
-		print(server)