def get_board(request):
resp = {}
user = token_to_user(request)
#for unlogged users
hasGameID = "gameid" in request.COOKIES
setGameID = False
if user is not None:
game = user.currentGame
if game is None:
game = newGame(user)
user.currentGame = game
user.save()
elif hasGameID:
game = cookie_to_game(request)
if game is None:
game = newGame(user)
setGameID = True
else:
game = newGame(None)
setGameID = True
if game.gameover:
game = newGame(user)
setGameID = True
if user is not None:
user.currentGame = game
user.save()
resp["board"] = move_logic.deserialize_board(game.lastMove.board)
resp["moveNumber"] = game.lastMove.moveNumber
response = HttpResponse(json.dumps(resp), content_type='application/json')
if setGameID:
response.set_cookie("gameid", value=game.gameid, httponly=False)
return response
def get_board(request):
resp = {}
user = token_to_user(request)
#for unlogged users
hasGameID = "gameid" in request.COOKIES
setGameID = False
if user is not None:
game = user.currentGame
if game is None:
game = newGame(user)
user.currentGame = game
user.save()
elif hasGameID:
game = cookie_to_game(request)
if game is None:
game = newGame(user)
setGameID = True
else:
game = newGame(None)
setGameID = True
if game.gameover:
game = newGame(user)
setGameID = True
if user is not None:
user.currentGame = game
user.save()
resp["board"] = move_logic.deserialize_board(game.lastMove.board)
resp["moveNumber"] = game.lastMove.moveNumber
response = HttpResponse(json.dumps(resp), content_type='application/json')
if setGameID:
response.set_cookie("gameid", value=game.gameid, httponly=False)
return response
def check_validity(move): # isValid, randomNumber
clientSecret = move.clientSecret
clientSecretHashed = move.clientSecretHashed
valid = (sha256(clientSecret) == clientSecretHashed)
if valid:
serverSecret = move.serverSecret
randomNumber = xorHex(serverSecret, clientSecret)
else:
serverSecret = "X"
randomNumber = rand256hex()
allempty = move_logic.deserialize_board(move.allempty)
emptyNo = len(allempty)
board = move_logic.deserialize_board(move.board)
position = allempty[int(randomNumber, 16)%emptyNo]
board[position[0]][position[1]] = move_logic.new_value
if move.moveNumber != sum(map(sum, board)):
raise Error("moveNumber != sum(board), database corruption, we're all going to die.")
gameover = False
result = move.moveNumber
game = move.belongs_to
if emptyNo == 1:
gameover = not move_logic.has_move(board)
if gameover:
result = move.moveNumber + 1
game.result = result
#person = game.belongs_to
#if result > person.bestResult:
# person.bestResult = result
move.board = move_logic.serialize_board(board)
game.gameover = gameover
game.save()
move.save()
return { "valid": valid,
"serverSecret": serverSecret,
"randomNumber": randomNumber,
"position": position,
"value": move_logic.new_value,
"gameover": gameover,
"moveNumber": result
}
def prepareCommitment(game, booleans, clientCommitment):
previous_move = game.lastMove
previous_board = move_logic.deserialize_board(previous_move.board)
full_board = move_logic.next_board(previous_board, *booleans)
board = full_board["newboard"]
allempty = full_board["allempty"]
changed = full_board["changed"]
if changed:
try:
current_move = negotiate_first(game, board, allempty, clientCommitment)
except UnfinishedMove:
return HttpResponse("Pacta sunt servanda. You are obliged to finish " +
"your previous move by exchanging secrets. To " +
"give up the negotiation and accept server's" +
"choice of the pseudorandom number send" +
'"surrender="True""', status=452)
else:
return HttpResponseForbidden("not changed!")
full_board["serverSecretHashed"] = current_move.serverSecretHashed;
full_board["moveNumber"] = current_move.moveNumber
return HttpResponse(json.dumps(full_board),
content_type='application/json')
def prepareCommitment(game, booleans, clientCommitment):
previous_move = game.lastMove
previous_board = move_logic.deserialize_board(previous_move.board)
full_board = move_logic.next_board(previous_board, *booleans)
board = full_board["newboard"]
allempty = full_board["allempty"]
changed = full_board["changed"]
if changed:
try:
current_move = negotiate_first(game, board, allempty, clientCommitment)
except UnfinishedMove:
return HttpResponse("Pacta sunt servanda. You are obliged to finish " +
"your previous move by exchanging secrets. To " +
"give up the negotiation and accept server's" +
"choice of the pseudorandom number send" +
'"surrender="True""', status=452)
else:
return HttpResponseForbidden("not changed!")
full_board["serverSecretHashed"] = current_move.serverSecretHashed;
full_board["moveNumber"] = current_move.moveNumber
return HttpResponse(json.dumps(full_board),
content_type='application/json')
