tippero/tipbot/modules/kitsune.py
2015-03-22 09:55:32 +00:00

278 lines
9.2 KiB
Python

#!/bin/python
#
# Cryptonote tipbot - kitsune bakuchi
# Copyright 2014,2015 moneromooo
#
# The Cryptonote tipbot is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as published
# by the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
import sys
import os
import redis
import hashlib
import time
import string
import random
import tipbot.config as config
from tipbot.log import log_error, log_warn, log_info, log_log
import tipbot.coinspecs as coinspecs
from tipbot.utils import *
from tipbot.command_manager import *
from tipbot.redisdb import *
from tipbot.betutils import *
def Roll(link):
identity=link.identity()
try:
if redis_hexists('kitsune:rolls',identity):
rolls = redis_hget('kitsune:rolls',identity)
rolls = long(rolls) + 1
else:
rolls = 1
except Exception,e:
log_error('Failed to prepare roll for %s: %s' % (identity, str(e)))
raise
try:
log_log('0')
s = GetServerSeed(link,'kitsune') + ":" + GetPlayerSeed(link,'kitsune') + ":" + str(rolls)
log_log('1')
sh = hashlib.sha256(s).hexdigest()
log_log('2')
triplet = [ long(sh[0:3],base=16)%6+1, long(sh[3:6],base=16)%6+1, long(sh[6:9],base=16)%6+1 ]
log_log('3')
return rolls, triplet
except Exception,e:
log_error('Failed to roll for %s: %s' % (identity,str(e)))
raise
def Kitsune(link,cmd):
identity=link.identity()
try:
amount=float(cmd[1])
units=StringToUnits(cmd[1])
except Exception,e:
link.send("Usage: !kitsune amount")
return
log_info("Kitsune: %s wants to bet %s" % (identity, AmountToString(units)))
potential_loss = amount * 35
valid,reason = IsBetValid(link,amount,config.kitsune_min_bet,config.kitsune_max_bet,potential_loss,config.kitsune_max_loss,config.kitsune_max_loss_ratio)
if not valid:
log_info("Kitsune: %s's bet refused: %s" % (identity, reason))
link.send("%s: %s" % (link.user.nick, reason))
return
try:
rolls, triplet = Roll(link)
except:
link.send("An error occured")
return
lose_units = units
win_units = long(units * 35) - lose_units
win = triplet[0] == triplet[1] and triplet[0] == triplet[2]
if win:
msg = "%s bets %s and wins %s on roll #%d! %s %s %s" % (link.user.nick, AmountToString(lose_units), AmountToString(win_units+lose_units), rolls, triplet[0], triplet[1], triplet[2])
else:
msg = "%s bets %s and loses on roll #%d: %s %s %s" % (link.user.nick, AmountToString(lose_units), rolls, triplet[0], triplet[1], triplet[2])
try:
RecordGameResult(link,"kitsune",win,not win,win_units if win else lose_units)
except:
return
redis_hset("kitsune:rolls",identity,rolls)
link.send("%s" % msg)
def ShowKitsuneStats(link,sidentity,title):
return ShowGameStats(link,sidentity,title,"kitsune")
def GetKitsuneStats(link,cmd):
identity=link.identity()
sidentity = GetParam(cmd,1)
if sidentity:
sidentity=IdentityFromString(link,sidentity)
if sidentity and sidentity != identity:
if not IsAdmin(link):
log_error('%s is not admin, cannot see kitsune stats for %s' % (identity, sidentity))
link.send('Access denied')
return
else:
sidentity=identity
ShowKitsuneStats(link,sidentity,NickFromIdentity(sidentity))
ShowKitsuneStats(link,"reset:"+sidentity,'%s since reset' % NickFromIdentity(sidentity))
ShowKitsuneStats(link,'','overall')
def ResetKitsuneStats(link,cmd):
identity=link.identity()
sidentity = GetParam(cmd,1)
if sidentity:
sidentity=IdentityFromString(link,sidentity)
if sidentity and sidentity != identity:
if not IsAdmin(link):
log_error('%s is not admin, cannot see kitsune stats for %s' % (identity, sidentity))
link.send('Access denied')
return
else:
sidentity=identity
try:
ResetGameStats(link,sidentity,"kitsune")
except Exception,e:
link.send("An error occured")
def PlayerSeed(link,cmd):
identity=link.identity()
fair_string = GetParam(cmd,1)
if not fair_string:
link.send("Usage: !playerseed <string>")
return
try:
SetPlayerSeed(link,'kitsune',fair_string)
except Exception,e:
log_error('Failed to save player seed for %s: %s' % (identity, str(e)))
link.send('An error occured')
try:
ps = GetPlayerSeed(link,'kitsune')
except Exception,e:
log_error('Failed to retrieve newly set player seed for %s: %s' % (identity, str(e)))
link.send('An error occured')
return
link.send('Your new player seed is: %s' % ps)
def FairCheck(link,cmd):
identity=link.identity()
try:
seed = GetServerSeed(link,'kitsune')
except Exception,e:
log_error('Failed to get server seed for %s: %s' % (identity,str(e)))
link.send('An error has occured')
return
try:
GenerateServerSeed(link,'kitsune')
except Exception,e:
log_error('Failed to generate server seed for %s: %s' % (identity,str(e)))
link.send('An error has occured')
return
link.send('Your server seed was %s - it has now been reset; see !fair for details' % str(seed))
def Seeds(link,cmd):
identity=link.identity()
try:
sh = GetServerSeedHash(link,'kitsune')
ps = GetPlayerSeed(link,'kitsune')
except Exception,e:
log_error('Failed to get server seed for %s: %s' % (identity,str(e)))
link.send('An error has occured')
return
link.send('Your server seed hash is %s' % str(sh))
if ps == "":
link.send('You have not set a player seed')
else:
link.send('Your player seed hash is %s' % str(ps))
def Fair(link,cmd):
link.send_private("%s's kitsune betting is provably fair" % config.tipbot_name)
link.send_private("Your rolls are determined by three pieces of information:")
link.send_private(" - your server seed. You can see its hash with !seeds")
link.send_private(" - your player seed. Empty by default, you can set it with !playerseed")
link.send_private(" - the roll number, displayed with each bet you make")
link.send_private("To verify past rolls were fair, use !faircheck")
link.send_private("You will be given your server seed, and a new one will be generated")
link.send_private("for future rolls. Then follow these steps:")
link.send_private("Calculate the SHA-256 sum of serverseed:playerseed:rollnumber")
link.send_private("Use the first 3 digits of the hexadecimal representation of this hash")
link.send_private("modulo 6 and add 1 to make your first roll. Do the same with the three")
link.send_private("next digits for the second, and again for the third roll")
link.send_private("See !faircode for Python code implementing this check")
def FairCode(link,cmd):
link.send_private("This Python 2 code takes the seeds and roll number and outputs the rolls")
link.send_private("for the corresponding game. Run it with three arguments: server seed,")
link.send_private("player seed (use '' if you did not set any), and roll number.")
link.send_private("import sys,hashlib,random")
link.send_private("try:")
link.send_private(" s=hashlib.sha256(sys.argv[1]+':'+sys.argv[2]+':'+sys.argv[3]).hexdigest()")
link.send_private(" triplet = [ long(s[0:3],base=16)%6+1, long(s[3:6],base=16)%6+1, long(s[6:9],base=16)%6+1 ]")
link.send_private(" print triplet[0], triplet[1], triplet[2]")
link.send_private("except:")
link.send_private(" print 'need serverseed, playerseed, and roll number'")
def KitsuneHelp(link):
link.send_private("The kitsune module is a provably fair %s dice betting game" % coinspecs.name)
link.send_private("Basic usage: !kitsune <amount>")
link.send_private("The goal in the old Japanese game Kitsune Bakuchi is to roll")
link.send_private("three dice and get three of a kind to win back 35 times your bet")
link.send_private("See !fair and !faircode for a description of the provable fairness of the game")
link.send_private("See !faircheck to get the server seed to check past rolls were fair")
random.seed(time.time())
RegisterModule({
'name': __name__,
'help': KitsuneHelp,
})
RegisterCommand({
'module': __name__,
'name': 'kitsune',
'parms': '<amount-in-%s>' % coinspecs.name,
'function': Kitsune,
'registered': True,
'help': "play a kitsune bakuchi game - pays 1:35"
})
RegisterCommand({
'module': __name__,
'name': 'stats',
'parms': '[<name>]',
'function': GetKitsuneStats,
'registered': True,
'help': "displays your kitsune bakuchi stats"
})
RegisterCommand({
'module': __name__,
'name': 'resetstats',
'parms': '[<name>]',
'function': ResetKitsuneStats,
'registered': True,
'help': "resets your kitsune bakuchi stats"
})
RegisterCommand({
'module': __name__,
'name': 'playerseed',
'parms': '<string>',
'function': PlayerSeed,
'registered': True,
'help': "set a custom seed to use in the hash calculation"
})
RegisterCommand({
'module': __name__,
'name': 'seeds',
'function': Seeds,
'registered': True,
'help': "Show hash of your current server seed and your player seed"
})
RegisterCommand({
'module': __name__,
'name': 'faircheck',
'function': FairCheck,
'registered': True,
'help': "Check provably fair rolls"
})
RegisterCommand({
'module': __name__,
'name': 'fair',
'function': Fair,
'help': "describe the provably fair kitsune bakuchi game"
})
RegisterCommand({
'module': __name__,
'name': 'faircode',
'function': FairCode,
'help': "Show sample Python code to check bet fairness"
})