def jury_vote_check(tx, txs, out, DB):
#make sure that this person is one of the 1000 richest people for this rep type.
if not transactions.signature_check(tx):
out[0]+='signature check'
return False
if not E_check(tx, 'decision_id', [str, unicode]): return False
if not E_check(tx, 'vote_id', [str, unicode]): return False
if is_number(tx['vote_id']) or is_number(tx['decision_id']):
out[0]+='that can not be a number'
return False
if not E_check(tx, 'old_vote', [str, unicode]): return False
if not E_check(tx, 'new_vote', [str, unicode]): return False
decision=tools.db_get(tx['decision_id'], DB)
if 'state' not in decision:
out[0]+='that is not a decision_id'
out[0]+='decision: ' +str(decision)
out[0]+='tx: ' +str(tx)
return False
if decision['state']!='proposed':
out[0]+='this decision has already been decided'
return False
if not tools.db_existence(tx['decision_id'], DB):
out[0]+='decision error'
return False
if tools.reveal_time_p(DB):
out[0]+='reveal time check'
return False
if len(tx['new_vote'])<4:
out[0]+='secret too short error'
return False
if not txs_tools.fee_check(tx, txs, DB): return False
return True
def create_jury_check(tx, txs, out, DB):
address=addr(tx)
if not transactions.signature_check(tx):
out[0]+='signature check'
return False
if not E_check(tx, 'vote_id', [str, unicode]):
out[0]+='vote id error'
return False
if tools.is_number(tx['vote_id']):
out[0]+='vote_id can not be a number'
return False
if len(tx['vote_id'])>1000: return False
if tools.db_existence(tx['vote_id'], DB):
out[0]+='this vote_id is already being used'
return False
if not tools.db_existence(address, DB):
out[0]+='this address is not used by anyone'
return False
acc=tools.db_get(address, DB)
for t in txs:
if 'jury_id' in t:
if t['jury_id']==tx['jury_id']:
out[0]+='this zeroth confirmation transaction already exists'
return False
if not txs_tools.fee_check(tx, txs, DB): return False
return True
def jury_vote_check(tx, txs, out, DB):
if not transactions.signature_check(tx):
out[0]+='signature check'
return False
if not E_check(tx, 'decision_id', [str, unicode]): return False
if not E_check(tx, 'vote_id', [str, unicode]): return False
if is_number(tx['vote_id']) or is_number(tx['decision_id']):
out[0]+='that can not be a number'
return False
if not E_check(tx, 'old_vote', [str, unicode]): return False
if not E_check(tx, 'new_vote', [str, unicode]): return False
decision=tools.db_get(tx['decision_id'], DB)
if 'state' not in decision:
out[0]+='that is not a decision_id'
out[0]+='decision: ' +str(decision)
out[0]+='tx: ' +str(tx)
return False
if decision['state']!='proposed':
out[0]+='this decision has already been decided'
return False
if not tools.db_existence(tx['decision_id'], DB):
out[0]+='decision error'
return False
if tools.reveal_time_p(DB):
out[0]+='reveal time check'
return False
if len(tx['new_vote'])<4:
out[0]+='secret too short error'
return False
if not txs_tools.fee_check(tx, txs, DB): return False
return True
def SVD_consensus_check(tx, txs, out, DB):
if not E_check(tx, 'vote_id', [str, unicode]): return False
if not E_check(tx, 'decisions', [list]): return False
if not tools.reveal_time_p(DB, custom.SVD_length):
out[0]+='this is not the correct time to do SVD'
return False
if is_number(tx['vote_id']):
out[0]+='that can not be a number'
return False
jury=tools.db_get(tx['vote_id'], DB)
if len(tx['decisions'])<5:
out[0]+='need at least 5 decisions to compute SVD'
return False
if not E_check(jury, 'members', [list]):
out[0]+='that jury has not been created yet'
return False
if len(jury['members'])<3:
out[0]+='need at least 3 voters in order to compute SVD'
return False
try:
matrix=txs_tools.decision_matrix(jury, tx['decisions'], DB)
except:
tools.log(sys.exc_info())
tools.log('matrix failure')
return False
w=txs_tools.weights(tx['vote_id'], DB, jury)
k=txs_tools.decisions_keepers(tx['vote_id'], jury, DB)
for decision in tx['decisions']:
if not decision in k:
out[0]+='one of the decisions has insufficient participation*certainty or has not matured yet: ' +str(decision)+' '+str(tools.db_get(decision))
return False
if not txs_tools.fee_check(tx, txs, DB):
out[0]+='you do not have enough money'
return False
return True
def reveal_jury_vote_check(tx, txs, out, DB):
if not transactions.signature_check(tx):
out[0]+='signature check'
return False
address=addr(tx)
acc=tools.db_get(address, DB)
if not E_check(tx, 'decision_id', [str, unicode]):
out[0]+='decision id error'
return False
if is_number(tx['decision_id']):
out[0]+='that can not be a number'
return False
decision=tools.db_get(tx['decision_id'], DB)
if decision['state']!='proposed':
out[0]+='this decision has already been decided'
return False
if not E_check(tx, 'old_vote', [str, unicode]): return False
if not E_check(tx, 'secret', [str, unicode]): return False
if not E_check(tx, 'new_vote', [str, unicode]):
out[0]+='new vote error'
return False
if tx['decision_id'] not in acc['votes']:
out[0]+='decision id not in acc[votes] error'
return False
answer_hash=acc['votes'][tx['decision_id']]
if not answer_hash==tools.det_hash([tx['new_vote'], tx['secret']]):
out[0]+='hash does not match'
return False
if not E_check(tx, 'old_vote', [str, unicode]):
out[0]+='old vote does not exist error'
return False
if not txs_tools.fee_check(tx, txs, DB): return False
return True
def create_jury_check(tx, txs, out, DB):
address=addr(tx)
mine=filter(lambda t: t['type']=='create_jury', txs)
mine=filter(lambda t: addr(t)==address, mine)
if len(mine)>0:
out[0]+='you cannot create 2 juries on the same block from the same address'
return False
if not transactions.signature_check(tx):
out[0]+='signature check'
return False
if not E_check(tx, 'vote_id', [str, unicode]):
out[0]+='vote id error'
return False
if tools.is_number(tx['vote_id']):
out[0]+='vote_id can not be a number'
return False
if len(tx['vote_id'])>1000: return False
if tools.db_existence(tx['vote_id'], DB):
out[0]+='this vote_id is already being used'
return False
if not tools.db_existence(address, DB):
out[0]+='this address is not used by anyone'
return False
acc=tools.db_get(address, DB)
for t in txs:
if t['type']=='prediction_market':
if t['jury_id']==tx['jury_id']:
out[0]+='this zeroth confirmation transaction already exists'
return False
if not txs_tools.fee_check(tx, txs, DB): return False
return True
def SVD_consensus_check(tx, txs, out, DB):
if not E_check(tx, 'vote_id', [str, unicode]): return False
if not E_check(tx, 'decisions', [list]): return False
if not tools.reveal_time_p(DB, custom.SVD_length):
out[0]+='this is not the correct time to do SVD'
return False
if is_number(tx['vote_id']):
out[0]+='that can not be a number'
return False
jury=tools.db_get(tx['vote_id'], DB)
if len(tx['decisions'])<5:
out[0]+='need at least 5 decisions to compute SVD'
return False
if not E_check(jury, 'members', [list]):
out[0]+='that jury has not been created yet'
return False
if len(jury['members'])<3:
out[0]+='need at least 3 voters in order to compute SVD'
return False
try:
matrix=txs_tools.decision_matrix(jury, tx['decisions'], DB)
except:
tools.log(sys.exc_info())
tools.log('matrix failure')
return False
w=txs_tools.weights(tx['vote_id'], DB, jury)
k=txs_tools.decisions_keepers(tx['vote_id'], jury, DB)
for decision in tx['decisions']:
if not decision in k:
out[0]+='one of the decisions has insufficient participation*certainty or has not matured yet: ' +str(decision)+' '+str(tools.db_get(decision))
return False
if not txs_tools.fee_check(tx, txs, DB):
out[0]+='you do not have enough money'
return False
return True
def create_jury_check(tx, txs, out, DB):
address=addr(tx)
mine=filter(lambda t: t['type']=='create_jury', txs)
mine=filter(lambda t: addr(t)==address, mine)
if len(mine)>0:
out[0]+='you cannot create 2 juries on the same block from the same address'
return False
if not transactions.signature_check(tx):
out[0]+='signature check'
return False
if not E_check(tx, 'vote_id', [str, unicode]):
out[0]+='vote id error'
return False
if tools.is_number(tx['vote_id']):
out[0]+='vote_id can not be a number'
return False
if len(tx['vote_id'])>1000: return False
if tools.db_existence(tx['vote_id'], DB):
out[0]+='this vote_id is already being used'
return False
if not tools.db_existence(address, DB):
out[0]+='this address is not used by anyone'
return False
acc=tools.db_get(address, DB)
if not txs_tools.fee_check(tx, txs, DB): return False
return True
def reveal_jury_vote_check(tx, txs, out, DB):
if not transactions.signature_check(tx):
out[0]+='signature check'
return False
address=addr(tx)
acc=tools.db_get(address, DB)
if not E_check(tx, 'decision_id', [str, unicode]):
out[0]+='decision id error'
return False
if is_number(tx['decision_id']):
out[0]+='that can not be a number'
return False
decision=tools.db_get(tx['decision_id'], DB)
if decision['state']!='proposed':
out[0]+='this decision has already been decided'
return False
if not E_check(tx, 'old_vote', [str, unicode]): return False
if not E_check(tx, 'secret', [str, unicode]): return False
if not E_check(tx, 'new_vote', [str, unicode]):
out[0]+='new vote error'
return False
if tx['decision_id'] not in acc['votes']:
out[0]+='decision id not in acc[votes] error'
return False
answer_hash=acc['votes'][tx['decision_id']]
if not answer_hash==tools.det_hash([tx['new_vote'], tx['secret']]):
out[0]+='hash does not match'
return False
if not E_check(tx, 'old_vote', [str, unicode]):
out[0]+='old vote does not exist error'
return False
if not txs_tools.fee_check(tx, txs, DB): return False
return True
def prediction_market_check(tx, txs, out, DB):
if not transactions.signature_check(tx):
out[0]+='signature check'
return False
address=addr(tx)
for l in ['states', 'states_combinatory', 'decisions']:
if not E_check(tx, l, list):
out[0]+=str(l)+ ' error'
return False
for dec in tx['decisions']:
if not tools.db_existence(dec, DB):
out[0]+='decision is not in the database: ' +str(dec)
return False
if is_number(dec):
out[0]+='decision_id can not be a number'
return False
if is_number(tx['PM_id']):
out[0]+='PM_id can not be a number'
return False
if len(tx['states'])>200:
out[0]+='too many states'
return False
if not E_check(tx, 'B', int):
out[0]+='B error'
return False
for comb in tx['states_combinatory']:
if len(comb)!=len(tx['decisions']):
out[0]+=str(comb)+' comb error'
return False
for l in [tx['states_combinatory'], tx['states'], tx['decisions']]:
for comb in l:
copies=len(filter(lambda comb2: comb==comb2, l))
if copies!=1:
out[0]+=str(comb)+' not mutually exclusive'
return False
if len(tx['states'])!=len(tx['states_combinatory'])+1:
out[0]+='wrong number of possible states?'
return False
if not E_check(tx, 'PM_id', [str, unicode]):
out[0]+='PM_id error'
return False
if len(tx['PM_id'])>1000:
out[0]+='PM_id too long'
return False
if tools.db_existence(tx['PM_id'], DB):
#out[0]+='PM: ' +str(tools.db_get(tx['PM_id'], DB))
out[0]+='this PM_id is already being used'
return False
for t in txs:
if 'PM_id' in t:
if t['PM_id']==tx['PM_id']:
out[0]+='Someone used that PM in this block already'
return False
acc=tools.db_get(address, DB)
if not txs_tools.fee_check(tx, txs, DB):
out[0]+='you do not have enough money'
return False
return True
def buy_shares_check(tx, txs, out, DB):
#make sure that we can only buy the shares of undecided markets.
if not transactions.signature_check(tx):
out[0]+='signature check'
return False
a=copy.deepcopy(tx)
a.pop('signatures')
half_way=tools.make_half_way(a)
if tools.det_hash(half_way)>custom.buy_shares_target:
out[0]+='insufficient POW'
return False
if not E_check(tx, 'buy', list):
out[0]+='buy error'
return False
if not E_check(tx, 'PM_id', [str, unicode]):
out[0]+='pm id error'
return False
pm=tools.db_get(tx['PM_id'], DB)
if 'decisions' not in pm:
out[0]+='that is not a prediction market yet'
return False
if len(tx['buy'])!=len(pm['shares_purchased']):
out[0]+='buy length error'
return False
stop=True
for i in tx['buy']:
if i!=0:
stop=False
if stop:
out[0]+='you need to buy a non-zero amount of at least one share'
return False
if 'price_limit' in tx:
price = txs_tools.cost_to_buy_shares(tx)
if price>tx['price_limit']:
out[0]+='that is outside the price limit for that tx '+str(price) + ' is bigger than ' +str(tx)
return False
for purchase in tx['buy']:
if type(purchase)!=int:
return False
for i in range(len(tx['buy'])):
if tx['buy'][i]+pm['shares_purchased'][i]<0:
out[0]+='PM cannot have negative shares'
return False
if not txs_tools.fee_check(tx, txs, DB):
out[0]+='fee check error'
return False
for dec in pm['decisions']:
decision = tools.db_get(dec, DB)
bad=True
if decision['state'] not in ['yes', 'no']:
bad=False
if bad:
out[0]+='this PM is already expired. you cannot buy shares.'
return False
return True
def spend_verify(tx, txs, DB):
if not E_check(tx, 'to', [str, unicode]):
tools.log('no to')
return False
if not signature_check(tx):
tools.log('signature check')
return False
if len(tx['to']) <= 30:
tools.log('that address is too short')
tools.log('tx: ' + str(tx))
return False
return False
if not E_check(tx, 'amount', int):
tools.log('no amount')
return False
tx_copy.pop('signatures')
if not txs_tools.fee_check(tx, txs, DB):
tools.log('fee check error')
return False
return True
def propose_decision_check(tx, txs, out, DB):
if 'maturation' in tx:
n=tx['maturation']
if type(n)!=int or n<0: return False
if not transactions.signature_check(tx):
out[0]+='signature check'
return False
if not E_check(tx, 'vote_id', [str, unicode]):
out[0]+='no vote id'
return False
if not E_check(tx, 'decision_id', [str, unicode]):
out[0]+='no decision id'
return False
if is_number(tx['vote_id']) or is_number(tx['decision_id']):
out[0]+='that can not be a number'
return False
if len(tx['decision_id'])>custom.max_key_length:
out[0]+='decision id too long'
return False
if not tools.db_existence(tx['vote_id'], DB):
out[0]+='that vote id has not been created yet'
return False
if tools.db_existence(tx['decision_id'], DB):
out[0]+='that decision id has already been used'
return False
for t in txs:
if 'decision_id' in t:
if t['decision_id']==tx['decision_id']:
out[0]+='already have a zeroth confirmation tx of this'
return False
if not txs_tools.fee_check(tx, txs, DB):
out[0]+='you do not have enough money'
return False
if not E_check(tx, 'txt', [str, unicode]):
out[0]+='what is the txt of this decision?'
return False
if len(tx['txt'])>6**5:
out[0]+='the txt of this decision is too long'
return False
return True
def propose_decision_check(tx, txs, out, DB):
if 'maturation' in tx:
n=tx['maturation']
if type(n)!=int or n<0: return False
if not transactions.signature_check(tx):
out[0]+='signature check'
return False
if not E_check(tx, 'vote_id', [str, unicode]):
out[0]+='no vote id'
return False
if not E_check(tx, 'decision_id', [str, unicode]):
out[0]+='no decision id'
return False
if is_number(tx['vote_id']) or is_number(tx['decision_id']):
out[0]+='that can not be a number'
return False
if len(tx['decision_id'])>custom.max_key_length:
out[0]+='decision id too long'
return False
if not tools.db_existence(tx['vote_id'], DB):
out[0]+='that vote id has not been created yet'
return False
if tools.db_existence(tx['decision_id'], DB):
out[0]+='that decision id has already been used'
return False
for t in txs:
if 'decision_id' in t:
if t['decision_id']==tx['decision_id']:
out[0]+='already have a zeroth confirmation tx of this'
return False
if not txs_tools.fee_check(tx, txs, DB):
out[0]+='you do not have enough money'
return False
if not E_check(tx, 'txt', [str, unicode]):
out[0]+='what is the txt of this decision?'
return False
if len(tx['txt'])>6**5:
out[0]+='the txt of this decision is too long'
return False
return True
def spend_verify(tx, txs, out, DB):
if not E_check(tx, 'to', [str, unicode]):
out[0] += 'no to'
return False
if not signature_check(tx):
out[0] += 'signature check'
return False
if len(tx['to']) <= 30:
out[0] += 'that address is too short'
out[0] += 'tx: ' + str(tx)
return False
if not E_check(tx, 'amount', int):
out[0] += 'no amount'
return False
if not txs_tools.fee_check(tx, txs, DB):
out[0] += 'fee check error'
return False
if 'vote_id' in tx:
if not tx['to'][:-29] == '11':
out[0] += 'cannot hold votecoins in a multisig address'
return False
return True
def spend_verify(tx, txs, out, DB):
if not E_check(tx, 'to', [str, unicode]):
out[0]+='no to'
return False
if not signature_check(tx):
out[0]+='signature check'
return False
if len(tx['to'])<=30:
out[0]+='that address is too short'
out[0]+='tx: ' +str(tx)
return False
if not E_check(tx, 'amount', int):
out[0]+='no amount'
return False
if not txs_tools.fee_check(tx, txs, DB):
out[0]+='fee check error'
return False
if 'vote_id' in tx:
if not tx['to'][:-29]=='11':
out[0]+='cannot hold votecoins in a multisig address'
return False
return True
def buy_shares_check(tx, txs, out, DB):
#make sure that we can only buy the shares of undecided markets.
if not transactions.signature_check(tx):
out[0]+='signature check'
return False
if not E_check(tx, 'buy', list):
out[0]+='buy error'
return False
if not E_check(tx, 'PM_id', [str, unicode]):
out[0]+='pm id error'
return False
pm=tools.db_get(tx['PM_id'], DB)
if 'decisions' not in pm:
out[0]+='that is not a prediction market yet'
return False
if len(tx['buy'])!=len(pm['shares_purchased']):
out[0]+='buy length error'
return False
for purchase in tx['buy']:
if type(purchase)!=int:
return False
for i in range(len(tx['buy'])):
if tx['buy'][i]+pm['shares_purchased'][i]<0:
out[0]+='PM cannot have negative shares'
return False
if not txs_tools.fee_check(tx, txs, DB):
out[0]+='fee check error'
return False
for dec in pm['decisions']:
decision = tools.db_get(dec, DB)
bad=True
if decision['state'] not in ['yes', 'no']:
bad=False
if bad:
out[0]+='this PM is already expired. you cannot buy shares.'
return False
return True