def login():
if request.method == 'GET':
return render_template('sign_in.html')
else:
username = request.form['username']
password = request.form['password']
role = request.form['role']
mysql = Mysql_service()
name, real_pass, role, email, address, account, credit = mysql.getUserInfoByUsername(
username)
if password == real_pass:
if role == 'Product':
session['username'] = name
return render_template('signin_sailer_index.html',
username=name,
email=email,
address=address)
if role == 'Transport':
session['username'] = name
return render_template('signin_trans_index.html',
username=name,
email=email,
address=address)
if role == 'Sale':
session['username'] = name
return render_template('signin_custs_index.html',
username=name,
email=email,
address=address)
else:
print("======登录失败======")
# 这里还没有考虑怎么样的返回界面
return render_template('sign_in.html', res="fail")
def signin_sailer_system():
username = session['username']
mysql = Mysql_service()
[name, password, role, email, address, account,
credit] = mysql.getUserInfoByUsername(username)
return render_template('signin_sailer_system.html',
username=username,
credit=credit)
def register():
if request.method == 'GET':
return render_template('register.html')
else:
username = request.form['name']
email = request.form['email']
password = request.form['password']
role = request.form['role']
# add into the mysql
mysql = Mysql_service()
mysql.register(username, password, email, role)
return redirect(url_for('login'))
def change_2():
if request.method == 'GET':
return render_template('signin_trans_index.html')
else:
username = request.form['username']
email = request.form['email']
address = request.form['address']
# 不同的身份返回不同的界面所以要进行判断
role = request.form['role']
# 修改个人信息，这个界面只有在刚刚登陆成功之后才能成功运行，没有留有借口进行返回
mysql = Mysql_service()
mysql.modify_user_info(username=username, email=email, address=address)
print("======成功修改======")
if role == 'Transport':
return render_template('signin_trans_index.html',
username=username,
email=email,
address=address)
hash(block)：计算给定的block的哈希值
返回：十六进制的字符串
proof_of_work(self, hash:str):挖矿
返回：nonce
new_node(self, address)：新建用户节点
valid_chain(self, chain)：判断chain是否合法
返回：合法True否则False
valid_chains(self)：获取整个网络节点的合法链
返回：有替换返回True反之False
"""
mysql=Mysql_service()
class Blockchain(object):
def __init__(self):
# 当前交易总数
self.num = 0
self.chain = []
# self.Blockchain.getchain()
self.getchain()
self.nodes = set()
self.get_all_host()
self.cur_transactions = []
self.get_cur_tran()
# 创建创世区块
self.new_block(nonce=self.proof_of_work('1'), previous_hash='1')
hash(block)：计算给定的block的哈希值
返回：十六进制的字符串
proof_of_work(self, hash:str):挖矿
返回：nonce
new_node(self, address)：新建用户节点
valid_chain(self, chain)：判断chain是否合法
返回：合法True否则False
valid_chains(self)：获取整个网络节点的合法链
返回：有替换返回True反之False
"""
mysql=Mysql_service()
class Blockchain(object):
def __init__(self):
# 当前交易总数
self.num = 0
self.chain = []
# self.Blockchain.getchain()
self.getchain()
self.nodes = set()
self.get_all_host()
self.cur_transactions = []
self.get_cur_tran()
# 创建创世区块
self.new_block(nonce=self.proof_of_work('1'), previous_hash='1')