def filtering(comments, keywords):
block = Block()
# 개인 키워드 기반 적절성 유무 판단
block = Block()
if keywords:
comments = block.privateKeywordMatch(comments, keywords) # 딕셔너리 리스트 받음
# 부적절한 댓글 가리기
conceal_bad_comment(comments)
return comments
def add_block(self, last_block, data):
#新增区块
block = Block(last_block.index + 1, date.datetime.now(), data,
last_block.hash)
self.chain.append(block)
last_block = self.chain[-1]
return last_block
def add_block(self, last_block, target_hash, nonce, data):
block = Block(last_block.index + 1, target_hash, nonce,
date.datetime.now(), data, last_block.hash)
self.chain.append(block)
# Return last block in the chain
return self.chain[-1]
def block_from_other_node(self, prev_block, index, timestamp, target_hash,
nonce, data, block_hash):
block = Block(index, target_hash, nonce, timestamp, data,
prev_block.hash, block_hash)
self.chain.append(block)
last_block = self.chain[-1]
return last_block
def create_genesis_block():
m = hashlib.sha256()
timestamp = date.datetime.now()
m.update(
str(timestamp).encode('ascii') +
str(random.randint(0x008000, 0x7FFFFF)).encode('ascii'))
target_hash = m.hexdigest()
block = Block(0, target_hash, 0, date.datetime.now(), {
'proof-of-work': None,
'transactions': None
}, '0')
return block
def proof_of_work(target_hash):
nonce = 0
while (1):
block = Block(0, target_hash, nonce, date.datetime.now(), {
'proof-of-work': None,
'transactions': None
}, '0')
nonce += 1
if (int(block.hash, 16) < int(target_hash, 16)):
proof = block
break
return proof
def load_chain_from_list(self, block_chain_list):
# Empty existing chain
self.chain[:] = []
chain_len = len(block_chain_list)
#print(block_chain_list)
for i in range(0, chain_len):
block = Block(block_chain_list[i]['index'],
block_chain_list[i]['target_hash'],
block_chain_list[i]['nonce'],
block_chain_list[i]['timestamp'],
block_chain_list[i]['data'],
block_chain_list[i]['previous_hash'],
block_chain_list[i]['hash'])
#print(block_chain_list[i]['hash'])
self.chain.append(block)
def create_genesis_block():
#创建创世块的信息
block = Block(0, date.datetime.now(), 'This is Genesis block', '0')
return block
def filter():
block = Block()
comment = request.args.get('comment')
result = block.runBlockComment(comment)
return str(result)
def properness_judge(new_comment):
block = Block()
result = block.runBlockComment(new_comment['comment'])
print("적절성 : " + result)
new_comment['property'] = result