def searchDevice():
data = json.loads(request.form.get('data'))
deviceID = data['id']
#print(deviceID)
trans = queryAllDB(transaction_db)
t = []
for item in trans:
key = str(item["id"], encoding='utf-8')
if key[:key.find(':')] == deviceID:
t.append(item["value"])
#print(t)
result = []
for item in t:
item = json.loads(item)
block_hash = item["block_hash"]
number = item["transaction_number"]
block_num = queryDB(block_db, block_hash)
#print(block_num)
if block_num:
one = {}
filename = "../blocks/blk" + block_num + ".dat"
fp = open(filename, "rb")
value = json.loads(fp.read())
fp.close()
#print(value)
one["sender"] = value["transactions"][int(number)]["sender"]
one["receiver"] = value["transactions"][int(number)]["receive"]
one["ctime1"] = value["transactions"][int(number)]["ctime"]
one["ctime2"] = value["ctime"]
result.append(one)
result = sorted(result, key=lambda x: x["ctime2"])
print(result)
return jsonify(result), 200
def input_device():
userID = session.get("userID")
device = {}
deviceID = request.args.get('device_id')
deviceName = request.args.get('device_name')
buyTime = request.args.get('buy_time')
device["name"] = deviceName
device["id"] = deviceID
device["date"] = buyTime
device_info = json.dumps(device,
ensure_ascii=False).encode(encoding="utf-8")
md5 = hashlib.md5(device_info).hexdigest()
device["md5"] = md5
device_info = json.dumps(device,
ensure_ascii=False).encode(encoding="utf-8")
if md5 in device_db:
return """<script>alert('device exist');location.replace("/manager");</script>"""
else:
insertDB(device_db, deviceID, device_info)
value = queryDB(user_db, userID)
info = json.loads(value)
info["device"].append(deviceID)
info = json.dumps(info, ensure_ascii=False).encode(encoding="utf-8")
insertDB(user_db, userID, info)
return """<script>alert('submit success');location.replace("/manager");</script>"""
def new_transaction():
values = request.form
print(values)
# Check that the required fields are in the POST'ed data
required = ['sender_address', 'recipient_address', 'amount','signature']
#if not all(k in values for k in required):
# return 'Missing values', 400
# Create a new Transaction
#valid Transaction,so delete deviceID
deviceID=values['amount']
senderID=values['senderID']
receiverID=values['receiverID']
#print('%s->%s:%s'%(senderID,receiverID,deviceID))
transaction_result = blockchain.submit_transaction(values['sender_address'],\
values['recipient_address'], values['amount'], values['signature'],\
senderID,receiverID)
print(transaction_result)
if transaction_result == False:
response = {'message': 'Invalid Transaction!'}
return jsonify(response), 406
else:
#sender delete device
value=queryDB(user_db,senderID)
info=json.loads(value)
print(info["device"])
info["device"].remove(deviceID)
info=json.dumps(info,ensure_ascii=False).encode(encoding="utf-8")
insertDB(user_db,senderID,info)
#receiver append device
value=queryDB(user_db,receiverID)
info=json.loads(value)
print(info["device"])
info["device"].append(deviceID)
info=json.dumps(info,ensure_ascii=False).encode(encoding="utf-8")
insertDB(user_db,receiverID,info)
response = {'message': 'Transaction will be added to Block '+ str(transaction_result)}
return jsonify(response), 201
def new_wallet():
userID = session.get("userID")
random_gen = Crypto.Random.new().read
private_key = RSA.generate(1024, random_gen)
public_key = private_key.publickey()
response = {
'private_key':
binascii.hexlify(private_key.exportKey(format='DER')).decode('ascii'),
'public_key':
binascii.hexlify(public_key.exportKey(format='DER')).decode('ascii')
}
print(userID)
print(queryDB(user_db, str(userID)))
value = json.loads(queryDB(user_db, userID))
value["public_key"] = response["public_key"]
value = json.dumps(value, ensure_ascii=False).encode(encoding="utf-8")
insertDB(user_db, userID, value)
#print(user_db[username])
#user_db.close()
#user_db.open("DB/users_info")
#user_db=dbm.open('DB/users_info','c')
return jsonify(response), 200
def check():
if request.method == "POST":
userID = request.form.get('id')
tempPsw = request.form.get('password').encode(encoding="utf-8")
passWord = hashlib.md5(tempPsw).hexdigest()
#print('%s,%s,%s'%(UserName,tempPsw,PassWord))
value = queryDB(user_db, userID)
if value:
info = json.loads(value)
print(info)
passw = info["password"]
if passWord == passw:
session["userID"] = userID
if userID == "manager":
return """<script>location.replace("/manager");</script>"""
else:
return """<script>location.replace("/make/transaction");</script>"""
return """<script>alert('studentID or password error');location.replace("/login");</script>"""
def make_transaction():
userID = session.get("userID")
value = queryDB(user_db, userID)
info = json.loads(value)
device = info["device"]
if userID != None:
users = queryAllDB(user_db)
result = []
if len(users) != 0:
for user in users:
one = {}
one["id"] = user["id"].decode("utf-8")
if one["id"] == userID:
continue
value = json.loads(user["value"])
one["public_key"] = value["public_key"]
one["device"] = device
#value=queryDB(device_db,deviceID)
#info=json.loads(value)
#device_hash=info["md5"]
#one["deviceID"]=deviceID
#one["md5"]=device_hash
result.append(one)
print(result)
json_value = json.dumps(result)
#devices=[]
#for device in device_db:
# d={}
# info=eval(device_db[device].decode("utf-8"))
# d['name']=info["name"]
# d['md5']=device.decode("utf-8")
# devices.append(d)
# print(d)
#json_value2=json.dumps(devices)
return render_template('./make_transaction.html',
userid=userID,
users=json_value)
else:
return login()