server.py 22.3 KB
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### Import ###
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import sys
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import json
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import time
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import _thread
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import socket
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from _thread import *
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import pymongo
from pymongo import MongoClient
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import hashlib
from hashlib import md5
import random
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import uuid
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from bson.objectid import ObjectId

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def getRandomMd5():
	return str(uuid.uuid4().hex)
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#md5 hash function
def md5(string):
    m = hashlib.md5()
    m.update(string.encode('UTF-8'))
    return m.hexdigest() 
	
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#Pymongo MongoDB Setup
client = MongoClient()
client = MongoClient('localhost',27017)
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db = client.gamesister
user = db.user
map = db.map
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offer = db.offer
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server = db.server
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market = db.market
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PORT = 8000
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IP = str(socket.gethostbyname(socket.gethostname()))
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#Join procedure
def join():
	#Connect to tracker
	try:
		sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
		sock.settimeout(3)
	except socket.error:
		print ('Failed to create socket')
		sys.exit()		 
	print ('Socket Created')
	 
	host = '167.205.32.46';
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	sock.connect((host , 8000))
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	message = {"method": "join", "ip": IP, "port": PORT}
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	try :
		#Set the whole string
		sock.sendall(bytes(json.dumps(message), 'UTF-8'))
		response = sock.recv(4096)
		
	except socket.error:
		#Send failed
		print ('Send failed')
		sys.exit()
	
	print (response.decode('UTF-8'))
	
	#Now receive data from tracker
	decoded = json.loads(response.decode('UTF-8'))
	
	#join reply
	if (decoded['status'] == "ok"):
		server.remove({})
		print(server.find().count())
		for serv in decoded['value']:
			server.insert({"ip": str(serv['ip']), "port": str(serv['port'])}) #Insert to database
	elif (decoded['status'] == "error"):
		print (decoded['description'])

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#Defining All Items in Inventory
honey = 0
herbs = 1
clay = 2
mineral = 3
potion = 4
incense = 5
gems = 6
lifeElixir = 7
manaCrystal = 8
philosopherStone = 9

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#Function for handling tracker connection.
#def trackerThread(conn):
	#while True:
		#try:
			#Receiving from tracker
			#json_input = conn.recv(1024)
			#if not json_input:
			#	break;
			#else:
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#Function for handling connections. This will be used to create threads
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def clientThread(conn):
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	#infinite loop so that function do not terminate and thread do not end.
	while True:
		try:
			#Receiving from client
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			json_input  = conn.recv(4096)
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			if not json_input: #empty data
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				break
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			else: #data not empty
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				decoded = json.loads(json_input.decode('UTF-8'))
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				print("request: " + str(decoded))
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				#ServerStatus(tracker)
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				if (decoded['method'] == "serverStatus"): 	
					server.remove({})
					for serv in decoded['server']:
						server.insert({"ip": str(serv['ip']), "port": str(serv['port'])}) #Insert to database
					reply = {"status": "ok"}
					
					conn.sendall(bytes(json.dumps(reply), 'UTF-8'))
					break
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				#Signup(client)
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				elif (decoded['method'] == "signup"): 
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					userQuery = user.find_one({"username": decoded['username'].lower()})
					if (userQuery == None): #user available
						#Assign Map for new user
						mapQuery = list(map.find())
						randomMap = random.randrange(nMap)
						for i in range(0,nMap):
							if (i == randomMap):
								selectedMap = mapQuery[i]
						
						#Randoming items
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						randomItems = [2,4,8,12]
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						random.shuffle(randomItems)
						inventory = randomItems + [0,0,0,0,0,0]
						
						#Inserting User Data
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						data = {"username": decoded['username'].lower(),
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								"password": md5(decoded['password']),
								"inventory": inventory,
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								"position": {"x": 0, "y": 0},
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								"map_token" : str(selectedMap['_id']),
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								"time": int(0),
								"collected": True}
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						user.insert(data)
						reply = {"status": "ok"}
					else: #user exist
						reply = {"status": "fail", "description": "username exists"}
					
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				#Login(client)
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				elif (decoded['method'] == "login"):
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					userQuery = user.find_one({"username": decoded['username'].lower()})
					if (userQuery == None): #username not exist
						reply = {"status": "fail","description": "username doesn't exist, please register first"}
					else: #username exist
						if (userQuery['password'] == md5(decoded['password'])): #password match
							reply = {"status": "ok", "token": str(userQuery['_id']), "x": userQuery['position']['x'], "y": userQuery['position']['y'], "time": userQuery['time']}
						else: #password not match
							reply = {"status": "fail", "description": "username/password combination is not found"}
							
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				#Inventory(client)
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				elif (decoded['method'] == 'inventory'):
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					userQuery = user.find_one({"_id": ObjectId(decoded['token'])})
					if (userQuery == None): #Invalid Request, token mismatch
						reply = {"status": "error"}
					else: #valid request
						reply = {"status": "ok", "inventory": userQuery['inventory']}
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				#MixItem(client)
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				elif (decoded['method'] == 'mixitem'):
					userQuery = user.find_one({"_id": ObjectId(decoded['token'])})
					if (userQuery == None): #Invalid Request, token mismatch
						reply = {"status": "error"}
					else: #valid request
						if (userQuery['inventory'][decoded['item1']] >= 3 and userQuery['inventory'][decoded['item2']] >= 3): #number of item sufficient
							if ((decoded['item1'] == honey and decoded['item2'] == herbs) or (decoded['item2'] == honey and decoded['item1'] == herbs)): #into potion
								user.update({"_id":userQuery['_id']},{"$inc":{"inventory."+str(decoded['item1']):-3 , "inventory."+str(decoded['item2']):-3 , "inventory.4" : 1}})
								mixItem = potion
							elif ((decoded['item1'] == clay and decoded['item2'] == herbs) or (decoded['item2'] == clay and decoded['item1'] == herbs)): #into incense
								user.update({"_id":userQuery['_id']},{"$inc":{"inventory."+str(decoded['item1']):-3 , "inventory."+str(decoded['item2']):-3 , "inventory.5" : 1}})
								mixItem = incense
							elif ((decoded['item1'] == clay and decoded['item2'] == mineral) or (decoded['item2'] == clay and decoded['item1'] == mineral)): #into gems
								user.update({"_id":userQuery['_id']},{"$inc":{"inventory."+str(decoded['item1']):-3 , "inventory."+str(decoded['item2']):-3 , "inventory.6" : 1}})
								mixItem = gems
							elif ((decoded['item1'] == potion and decoded['item2'] == incense) or (decoded['item2'] == potion and decoded['item1'] == incense)): #into lifeElixir
								user.update({"_id":userQuery['_id']},{"$inc":{"inventory."+str(decoded['item1']):-3 , "inventory."+str(decoded['item2']):-3 , "inventory.7" : 1}})
								mixItem = lifeElixir
							elif ((decoded['item1'] == gems and decoded['item2'] == incense) or (decoded['item2'] == gems and decoded['item1'] == incense)): #into manaCrystal
								user.update({"_id":userQuery['_id']},{"$inc":{"inventory."+str(decoded['item1']):-3 , "inventory."+str(decoded['item2']):-3 , "inventory.8" : 1}})
								mixItem = manaCrystal
							elif ((decoded['item1'] == lifeElixir and decoded['item2'] == manaCrystal) or (decoded['item2'] == lifeElixir and decoded['item1'] == manaCrystal)): #into philosopherStone
								user.update({"_id":userQuery['_id']},{"$inc":{"inventory."+str(decoded['item1']):-3 , "inventory."+str(decoded['item2']):-3 , "inventory.9" : 1}})
								mixItem = philosopherStone
							else:
								mixItem = ''
							
							if (mixItem):
								reply = {"status":"ok", "item": int(mixItem)}
							else:
								reply = {"status":"fail", "description": "Item Combination is not valid"}
						else:
							reply = {"status": "fail", "description": "You have not enough items to combine"}
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				#Map(client)
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				elif (decoded['method'] == 'map'):
					userQuery = user.find_one({"_id": ObjectId(decoded['token'])})
					if (userQuery == None): #Invalid Request, token mismatch
						reply = {"status": "error"}
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					else: #valid request
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						mapQuery = map.find_one({"_id": ObjectId(userQuery['map_token'])})
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						if(mapQuery == None): #map not found
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							reply = {"status": "error"}
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						else: #map OK
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							reply = {"status": "ok", "name": mapQuery["name"], "width": mapQuery["width"], "height": mapQuery["height"]}
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				#Move(client)
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				elif (decoded['method'] == 'move'):
					userQuery = user.find_one({"_id": ObjectId(decoded['token'])})
					if (userQuery == None): #Invalid Request, token mismatch
						reply = {"status": "error"}
					else:
						mapQuery = map.find_one({"_id": ObjectId(userQuery['map_token'])})
						if (mapQuery == None): #map not found
							reply = {"status": "error"}
						else: #map OK
							timeNow = int(time.time())
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							if (userQuery['time'] > timeNow): # still on the way
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								reply = {"status":"fail","decription": "You are still on the way"}
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							else: # character has been arrived
								if (userQuery['position']['x'] == decoded['x'] and userQuery['position']['y'] == decoded['y']): #move to same place
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									reply = {"status": "fail", "description": "You are already here"}
								else:
									if (decoded['x'] < mapQuery["width"] and decoded['x'] >= 0 and
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										decoded['x'] < mapQuery["height"] and decoded['y'] >= 0): #move OK
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										jarak = abs(decoded['x'] - userQuery['position']['x']) + abs(decoded['y'] - userQuery['position']['y'])
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										user.update({"_id": userQuery['_id']}, {"$set": {"time": int(timeNow + 7 * jarak), "position.x": int(decoded['x']), "position.y": int(decoded['y']), "collected": False}})
										reply = {"status": "ok", "time" : int(timeNow+7 * jarak)}
									else: # out of bound target
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										reply = {"status": "fail", "description": "Your destination is out of your reach"}
				
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				#Field(client)
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				elif (decoded['method'] == 'field'):
					userQuery = user.find_one({"_id": ObjectId(decoded['token'])})
					if (userQuery == None): #Invalid Request, token mismatch
						reply = {"status": "error"}
					else: #valid request
						timeNow = int(time.time())
						if (userQuery['time'] > timeNow): #still on the way
							reply = {"status":"fail","decription": "You are still on the way"}
						else:
							if (userQuery['collected']): # item already collected
								reply = {"status":"fail", "description": "Item is already collected"}
							else: #collect granted
								mapQuery = map.find_one({"_id": ObjectId(userQuery['map_token'])})
								item =  mapQuery['map'][userQuery['position']['y']][userQuery['position']['x']]
								user.update({"_id": userQuery['_id']},{"$set": {"collected": True},"$inc": {"inventory."+str(item): 1}})
								reply = {"status": "ok", "item": item}
				
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				#Offer(client)
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				elif (decoded['method'] == 'offer'):
					userQuery = user.find_one({"_id": ObjectId(decoded['token'])})
					if (userQuery == None): #Invalid Request, token mismatch
						reply = {"status": "error"}
					else: #valid request
						if (userQuery['inventory'][decoded['offered_item']] < decoded['n1']): #resource not enough
							reply = {"status": "fail", "description": "insufficient resource"}
						else:
							#update inventory
							user.update({"_id": userQuery['_id']}, {"$inc": {"inventory."+ str(decoded['offered_item']) : -decoded['n1']}})
							#insert new offer
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							offer.insert({	"offer_token": getRandomMd5(),
											"user_token": str(userQuery['_id']),
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											"offered_item": decoded['offered_item'],
											"n_offered_item": decoded['n1'],
											"demanded_item": decoded['demanded_item'],
											"n_demanded_item": decoded['n2'],
											"availability": True})
							reply = {"status": "ok"}
				
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				#Tradebox(client)
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				elif (decoded['method'] == 'tradebox'):
					userQuery = user.find_one({"_id": ObjectId(decoded['token'])})
					if (userQuery == None): #Invalid Request, token mismatch
						reply = {"status": "error"}
					else: #valid request
						allOffer = offer.find({"user_token": decoded['token']})
						offers = []
						for off in allOffer:
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							singleOffer = [int(off['offered_item']),int(off['n_offered_item']),int(off['demanded_item']),int(off['n_demanded_item']),off['availability'],str(off['offer_token'])]
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							offers.append(singleOffer)
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						reply = {"status": "ok", "offers": offers}
				
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				#SendFind(client)
				elif (decoded['method'] == 'sendfind'):
					userQuery = user.find_one({"_id": ObjectId(decoded['token'])})
					if (userQuery == None): #Invalid Request, token mismatch
						reply = {"status": "error"}
					else: #valid request
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						serverList = server.find({"ip": {"$ne": IP}, "port": {"$ne": PORT}})
						
						#Request all offer in another servers
						for serve in serverList:
							#Make socket to all server
							try:
								sock_serv = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
								sock_serv.settimeout(3)
							except socket.error: #Socket fail to create
								print ('Failed to create socket')
							
							sock_serv.connect((serve['ip'] , serve['port']))
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							request = {"method": "findoffer", "item": decoded['item']}
							
							#Sending request
							try :
								sock_serv.sendall(bytes(json.dumps(request), 'UTF-8'))
							except socket.error: #Send Failed
								print ('Send failed')
								sys.exit()
							#Receiving response
							try:
								response = sock_serv.recv(4096)
							except socket.error:
								print('receive failed')
								sys.exit()
								
							res = json.loads(response.decode('UTF-8'))
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							print(res)
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							if (res['status'] == 'ok'): #sendfind ok!
								#update market
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								if (market.count() > 0):
									market.remove({"offered_item": decoded['item'], "ip": str(serve['ip']), "port": int(serve['port'])})
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								for off in res['offers']:
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									market.insert({	"offer_token": off[5],
													"offered_item": off[0],
													"n_offered_item": off[1],
													"demanded_item": off[2],
													"n_demanded_item": off[3],
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													"availability": True,
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													"server": {"ip": str(serve['ip']),"port": int(serve['port'])}})
													
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							elif (res['status'] == 'error'): #sendfind error
								print("Error response from server "+ str(serve['ip']) + ":" + str(serve['port']))
							
							sock_serv.close()
						
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						offers = []
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						#market (another server)
						marketOffer = market.find({"offered_item": decoded['item'], "availability": True})
						for off in marketOffer:
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							singleOffer = [int(off['offered_item']),int(off['n_offered_item']),int(off['demanded_item']),int(off['n_demanded_item']),off['availability'],str(off['offer_token'])]
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							offers.append(singleOffer)
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						#own server
						ownOffer = offer.find({"user_token": {"$ne": decoded['token']}, "offered_item": decoded['item'], "availability": True})
						for off in ownOffer:
							singleOffer = [int(off['offered_item']),int(off['n_offered_item']),int(off['demanded_item']),int(off['n_demanded_item']),off['availability'],str(off['offer_token'])]
							offers.append(singleOffer)
						
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						reply = {"status": "ok", "offers": offers}
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				#FindOffer(server)
				elif (decoded['method'] == 'findoffer'):
					allOffer = offer.find({"offered_item": decoded['item']})
					offers = []
					for off in allOffer:
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						singleOffer = [int(off['offered_item']),int(off['n_offered_item']),int(off['demanded_item']),int(off['n_demanded_item']),off['availability'],str(off['offer_token'])]
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						offers.append(singleOffer)
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					reply = {"status": "ok", "offers": offers}
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					print("response " + str(reply))
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					conn.sendall(bytes(json.dumps(reply), 'UTF-8'))
					break;
					
				#SendAccept(client)
				elif (decoded['method'] == 'sendaccept'):
					userQuery = user.find_one({"_id": ObjectId(decoded['token'])})
					if (userQuery == None): #Invalid Request, token mismatch
						reply = {"status": "error"}
					else: #valid request
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						off = offer.find_one({"offer_token": decoded['offer_token']}) # search own server
						if (off == None): #offer token not found in own server
							marketOff = market.find_one({"offer_token": decoded['offer_token']}) #search in another server
							
							if (marketOff == None): #offer not found in another server
								reply = {"status": "fail", "description": "offer not found"}
							else: #offer found in another server
								if (marketOff['availability']): #offer available
									if (marketOff['n_demanded_item'] <= userQuery['inventory'][marketOff['demanded_item']]): #sufficient item
										#create socket
										try:
											sock_serv = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
											sock_serv.settimeout(3)
										except socket.error:
											print ('Failed to create socket')
											sys.exit()		 
										print ('Socket Created')
										
										#connect socket
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										sock_serv.connect((str(marketOff['ip']) , int(marketOff['port'])))
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										request = {"method": "accept", "offer_token": decoded['offer_token']}
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										try : 
											sock_serv.sendall(bytes(json.dumps(request), 'UTF-8')) 
										except socket.error: #send failed
											print ('Send failed')
											sys.exit()
										
										#recv response
										try:
											response = sock_serv.recv(4096)
										except socket.error: #recv failed
											print("Recv failed")
											sys.exit()
										
										#closing socket
										sock_serv.close()
										
										#Update database
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										if (market.count() > 0):
											market.remove({'offer_token': decoded['offer_token']})
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										user.update({'_id': ObjectId(decoded['token'])},{"$inc": {'inventory.'+str(off['demanded_item']): -off['n_demanded_item'], 
																							'inventory.'+str(off['offered_item']): off['n_offered_item']}})
										reply = {"status": "ok"}
									else: #insufficient item
										reply = {"status": "fail", "description": "you have insufficient item"}
								else: #offer not available / already taken
									reply = {"status": "fail", "description": "offer is already taken"}
								
						else: #offer found in own server
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							if (off['availability']): #offer still available
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								if (off['n_demanded_item'] <= userQuery['inventory'][off['demanded_item']]): #sufficient item
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									#update inventory of acceptor
									user.update({'_id': ObjectId(decoded['token'])},{"$inc": {'inventory.'+str(off['demanded_item']): -off['n_demanded_item'], 
																					'inventory.'+str(off['offered_item']): off['n_offered_item']}})
									
									#turn availability of offer to false
									offer.update({'offer_token': decoded['offer_token']}, {"$set": {'availability': False}})
									
									reply = {"status": "ok"}
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								else: #sufficient item. Accept OK
									reply = {"status": "fail", "description": "offer is already taken"}
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							else: #offer already taken
								reply = {"status": "fail", "description": "offer is already taken"}
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				#Accept(server)
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				elif (decoded['method'] == 'accept'):
					off = offer.find_one({"offer_token": decoded['offer_token']})
					if (offer == None) : #offer token not found
						reply = {"status": "fail", "description": "offer not found"}
					else: #offer found
						if (off['availability']): #offer still available
							#turn availability of offer to false
							offer.update({'offer_token': decoded['offer_token']}, {"$set": {'availability': False}})
							
							reply = {"status": "ok"}
						else: #offer already taken
							reply = {"status": "fail", "description": "offer is already taken"}
					
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					print("response: " + str(reply))
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					conn.sendall(bytes(json.dumps(reply), 'UTF-8'))
					break;
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				#FetchItem(client)
				elif (decoded['method'] == 'fetchitem'):
					userQuery = user.find_one({"_id": ObjectId(decoded['token'])})
					if (userQuery == None): #Invalid Request, token mismatch
						reply = {"status": "error"}
					else: #valid request
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						off = offer.find_one({"offer_token": decoded['offer_token']})
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						if (off == None): #offer token not found
							reply = {"status": "fail", "description": "offer not found"}
						else: #offer found
							if (off['availability']): #still available
								reply = {"status": "fail", "description": "offer still available"}
							else: #not available, ready to fetch
								#update inventory of offerer
								user.update({'_id': ObjectId(decoded['token'])},{"$inc": {'inventory.'+str(off['demanded_item']): off['n_demanded_item']}})
								
								#remove offer
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								offer.remove({'offer_token': decoded['offer_token']})
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								reply = {"status": "ok"}
								
				#CancelOffer(client)
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				elif (decoded['method'] == 'canceloffer'):
					userQuery = user.find_one({"_id": ObjectId(decoded['token'])})
					if (userQuery == None): #Invalid Request, token mismatch
						reply = {"status": "error"}
					else: #valid request
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						off = offer.find_one({'offer_token': decoded['offer_token']})
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						if (off == None): #Offer not found
							reply = {"status": "fail", "description": "Offer not found"}
						else: # Offer found
							if (off['availability']): #offer still available, cancel OK
								user.update({"_id": userQuery['_id']},{"$inc": {"inventory."+str(off['offered_item']): off['n_offered_item']}})
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								offer.remove({"offer_token": off['offer_token']})
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								reply = {"status": "ok"}
							else: # not available, offer already accepted (taken)
								reply = {"status": "fail", "description": "Offer already accepted / taken"}
							
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				print("response: "+str(reply))
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				conn.sendall(bytes(json.dumps(reply), 'UTF-8'))
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		except Exception as e:
			break
	
    #came out of loop
	conn.close()

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### MAIN PROGRAM ###
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if __name__ == '__main__':
	nMap = 2
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	#Join
	#join()
	
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	# LOAD MAP
	mapQuery = list(map.find())
	if (not mapQuery): # if map Database still empty
		for i in range (0,nMap):
			mapFile = "map_" + str(i) + ".json"
			with open(mapFile) as json_file:
				json_map = json.load(json_file)
				# Ambil data dari file
				mapName = json_map['name']
				mapWidth = json_map['width']
				mapHeight = json_map['height']
				mapMap = json_map['map']
				
				reply = {"status": "ok", "name": mapName, "width": mapWidth, "height": mapHeight}
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				data = {"name": mapName,
						"width": mapWidth,
						"height": mapHeight,
						"map": mapMap
						}				
				map.insert(data)
	
	# MAKING SOCKET CONNECTION #
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	sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
	print ('Socket created')
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	#Bind socket to local host and port
	try:
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		sock.bind(('localhost', PORT))
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	except (socket.error):
		print ('Bind failed')
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		sys.exit()
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	print ('Socket bind complete')
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	#Start listening on socket , 10 connect requests
	sock.listen(10) 
	print ('Socket now listening')
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	#now keep talking with the client
	while True:
		#wait to accept a connection - blocking call
		conn, addr = sock.accept()
		print ('Connected with ' + addr[0] + ':' + str(addr[1]))
		
		#start new thread takes 1st argument as a function name to be run, second is the tuple of arguments to the function.
		start_new_thread(clientThread ,(conn,))
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	sock.close()