def pending_transaction():
if request.method == 'GET':
data = pending_pool.get_data('pool.pickle')
if data != False:
return str(data)
else:
return ("Something get wrong!\nYou have no transaction in pool")
def get_script(txid, vout):
utxo_set = pp.get_data('utxo.pickle')
for utxo in utxo_set:
for unspent in utxo['unspent_outputs']:
if unspent['tx_hash_big_endian'] == txid and hex(
unspent['tx_output_n'])[2:] == vout:
return unspent['script']
def utxo():
if request.method == 'GET':
data = pending_pool.get_data('utxo.pickle')
if data != False:
return str(data)
else:
return ("Something get wrong!\nYou have no utxo in pool")
def get_difficulty():
if request.method == 'GET':
data = pending_pool.get_data('blockchain.pickle')
if data != False:
diff = data.diff
return str(diff)
else:
return ("Something get wrong!\nYou have no chain")
def get_chain():
if request.method == 'GET':
data = pending_pool.get_data('blockchain.pickle')
if data != False:
if (type(data) == str):
data = json.loads(data)
return str(data)
else:
return ("Something get wrong!\nYou have no chain")
def last_block():
if request.method == 'GET':
data = pending_pool.get_data('blockchain.pickle')
if data != False:
if type(data) is dict:
block = data['chain'][0]
else:
block = data.chain[0]
return str(block)
else:
return ("Something get wrong!\nYou have no chain")
def chain_length():
if request.method == 'GET':
data = pending_pool.get_data('blockchain.pickle')
if data != False:
if type(data) is dict:
lens = str(data['chain'][0]['height'])
else:
lens = str(data.chain[0].height)
return lens
else:
return ("0")
def init_file(self, name, t):
data = pp.get_data(name)
if data == False:
data = []
height = 0
else:
data = json.loads(data)
if t != 0:
height = data.chain[0].height
if t == 1:
return data, height
else:
return data
def block_height():
if request.method == 'GET':
height = str(request.args.get('height'))
data = pending_pool.get_data('blockchain.pickle')
if data != False:
i = len(data.chain) - 1
while (i >= 0):
if (int(data.chain[i].height) == int(height)):
return str(data.chain[i])
i -= 1
return "No such block!"
else:
return "There no chain data!"
def __init__(self, is_premine=0):
cmd.Cmd.__init__(self)
self.prompt = "฿ "
self.intro = "\t\tWelcome to the miner cli\nHow to use? 'help'!!"
self.doc_header = "For detail information use 'help _command_')"
self.blockchain = pp.get_data("blockchain.pickle")
if (self.blockchain == False or is_premine == True):
os.remove("utxo.pickle")
self.blockchain = blockchain.Blockchain()
if is_premine == True:
print("PREMINE IS ON")
pubkeys = premine.createKeysAndAddresses()
self.blockchain.genesis_block()
if is_premine == True:
premine.premine_mode(pubkeys, self)
def get_utxo_set(which, address):
if which == 'Testnet':
resp = requests.get(
'https://testnet.blockchain.info/unspent?active=%s' % address)
utxo_set = json.load(resp.text)["unspent_outputs"]
else:
i = 0
utxo_set = pp.get_data('utxo.pickle')
if utxo_set != False:
for elem in utxo_set:
if (elem['address'] == address):
utxo_set = elem['unspent_outputs']
i = 1
break
if i != 1:
utxo_set = 0
return utxo_set
def del_from_pool(tx): #deserialiazed transaction
utxo_set = pp.get_data('utxo.pickle')
if utxo_set == False:
print("Empty utxo pool!!")
return
new_pool = []
for elem in tx['inputs']:
address = get_address(elem['ScriptSig'])
for utxo in utxo_set:
if utxo['address'] != address:
new_pool.append(utxo)
else:
new_data = []
for unspent in utxo['unspent_outputs']:
if unspent['tx_hash_big_endian'] != elem[
'TXID'] and unspent['tx_output_n'] != elem['VOUT']:
new_data.append(unspent)
utxo['unspent_outputs'] = new_data
new_pool.append(utxo)
pp.add_data(new_pool, 'utxo.pickle')
def add_output(tx_output, n, tx_hash):
#####
new_data = {
'tx_hash_big_endian': tx_hash,
'tx_output_n': n,
'script': tx_output['SPK'],
'value': tx_output['Value']
}
ready_data = {
'address':
tx_output['address'],
'unspent_outputs': [{
'tx_hash_big_endian': tx_hash,
'tx_output_n': n,
'script': tx_output['SPK'],
'value': tx_output['Value']
}]
}
#####
i = 0
utxo_set = pp.get_data('utxo.pickle')
print("Utxo in add_output ", utxo_set)
if type(utxo_set) is bytes:
utx = []
for utxo in utxo_set:
if type(utxo) is not int:
utx.append(utxo)
utxo_set = utx
if utxo_set == False:
utxo_set = []
else:
for elem in utxo_set:
if (elem['address'] == tx_output['address']):
i = 1
elem['unspent_outputs'].append(new_data)
if i == 0:
utxo_set.append(ready_data)
pp.add_data(utxo_set, 'utxo.pickle')
def add_output(tx_output, n, tx_hash):
#####
new_data = {
'tx_hash_big_endian': tx_hash,
'tx_output_n': n,
'script': tx_output['SPK'],
'value': tx_output['Value']
}
ready_data = {
'address':
tx_output['address'],
'unspent_outputs': [{
'tx_hash_big_endian': tx_hash,
'tx_output_n': n,
'script': tx_output['SPK'],
'value': tx_output['Value']
}]
}
#####
i = 0
utxo_set = pp.get_data('utxo.pickle')
# if type(utxo_set) is str:
# utxo_set = literal_eval(utxo_set)
if utxo_set == False:
utxo_set = []
else:
# lens = len(utxo_set) ЗАЧЕМ????
for elem in utxo_set:
if (elem['address'] == tx_output['address']):
i = 1
elem['unspent_outputs'].append(new_data)
if i == 0:
utxo_set.append(ready_data)
pp.add_data(utxo_set, 'utxo.pickle')
