def private():
amount = session.get('amount', 'hren')
sender_public_key = session.get('sender_public_key', 'hren')
receiver_public_key = session.get('receiver_public_key', 'hren')
sender = User.query.filter_by(public_key=sender_public_key).first()
receiver = User.query.filter_by(public_key=receiver_public_key).first()
if request.method == 'GET':
return render_template('private.html',
amount=amount,
from_whom=sender_public_key,
to_whom=receiver_public_key,
sender_private_key=sender.private_key)
elif request.method == 'POST':
input_private_key = request.form['private']
if input_private_key == sender.private_key:
sender.balance = sender.balance - int(amount)
receiver.balance = receiver.balance + int(amount)
conf = "Transactions added to blockchain!"
write_block(from_who=sender_public_key,
to_whom=receiver_public_key,
amount=amount)
write_block_to_nodes(from_who=sender_public_key,
to_whom=receiver_public_key,
amount=amount)
db.session.commit()
return render_template('private.html', confirmation=conf)
else:
wrong = 'The Private Key is incorrect'
return render_template('private.html', wrong=wrong)
def private():
amount = session.get('amount', 'hren')
sender_public_key = session.get('sender_public_key', 'hren')
receiver_public_key = session.get('receiver_public_key', 'hren')
sender = User.query.filter_by(public_key=sender_public_key).first()
receiver = User.query.filter_by(public_key=receiver_public_key).first()
if request.method == 'GET':
return render_template('private.html', amount=amount, from_whom=sender_public_key, to_whom=receiver_public_key, sender_private_key=sender.private_key)
elif request.method == 'POST':
input_private_key = request.form['private']
nodes_numbers = []
for i in range(1,7):
nodes_numbers.append(request.form.get(f'node{i}'))
if input_private_key == sender.private_key:
for node_num in nodes_numbers:
if node_num:
node = nodes_route + str(node_num) + '/'
sender.balance = sender.balance - int(amount)
receiver.balance = receiver.balance + int(amount)
conf = "Transactions added to blockchain!"
write_block_to_node(node, from_who=sender_public_key,
to_whom=receiver_public_key, amount=amount)
if nodes_numbers.count('None') < 3:
write_block(from_who=sender_public_key,
to_whom=receiver_public_key, amount=amount)
db.session.commit()
return render_template('private.html', confirmation=conf, nodes=nodes_numbers)
else:
wrong = 'The Private Key is incorrect'
return render_template('private.html', wrong=wrong)
def private():
amount = session.get('amount')
sender_public_key = session.get('sender_public_key')
receiver_public_key = session.get('receiver_public_key')
sender = User.query.filter_by(public_key=sender_public_key).first()
#receiver = User.query.filter_by(public_key=receiver_public_key).first()
if request.method == 'GET':
return render_template('private.html', amount=amount,
from_whom=sender_public_key, to_whom=receiver_public_key,
sender_private_key=sender.private_key)
elif request.method == 'POST':
input_private_key = request.form['private']
nodes_numbers = []
for i in range(1, 7):
nodes_numbers.append(request.form.get(f'node{i}'))
if input_private_key == sender.private_key:
if nodes_numbers.count(None) < 3:
write_block(from_who=sender_public_key,
to_whom=receiver_public_key, amount=amount)
write_block_to_nodes(from_who=sender_public_key,
to_whom=receiver_public_key, amount=amount)
return render_template('private.html', confirmation='Transaction added to the blockchain!', nodes=nodes_numbers)
else:
return render_template('private.html', deny = "Not enough nodes to change the blockchain!")
else:
wrong = 'The Private Key is incorrect'
return render_template('private.html', wrong=wrong)
def private(sen, rec, am):
amount = am
sender_public_key = request.form.get('from')
receiver_public_key = request.form.get('to')
amount = request.form.get('amount')
if request.method == 'GET':
return render_template('private.html',
amount=amount,
from_whom=sender_public_key,
to_whom=receiver_public_key)
elif request.method == 'POST':
input_private_key = request.form['private']
nodes_numbers = []
for i in range(1, 7):
nodes_numbers.append(request.form.get(f'node{i}'))
if input_private_key == sender.private_key:
if nodes_numbers.count(None) < 3:
block_data = write_block(from_who=sender_public_key,
to_whom=receiver_public_key,
amount=amount)
write_block_to_nodes(from_who=sender_public_key,
to_whom=receiver_public_key,
amount=amount)
return render_template(
'private.html',
block=block_data,
confirmation='Transaction added to the blockchain!')
else:
return render_template(
'private.html',
deny="Not enough nodes to change the blockchain!")
else:
wrong = 'The Private Key is incorrect'
return render_template('private.html', wrong=wrong)
def transaction():
users = User.query.all()
if request.method == 'POST':
sender_public_key = request.form.get('from')
receiver_public_key = request.form.get('to')
amount = request.form.get('amount')
sender = User.query.filter_by(public_key=sender_public_key).first()
print(sender.private_key)
if request.form.get('private'):
if sender.private_key == request.form.get('private'):
block_data = write_block(from_who=sender_public_key,
to_whom=receiver_public_key,
amount=amount)
write_block_to_nodes(from_who=sender_public_key,
to_whom=receiver_public_key,
amount=amount)
return render_template(
'transactions.html',
block=block_data,
confirmation='Transaction added to the blockchain!',
sender=sender_public_key,
receiver=receiver_public_key,
amount=amount,
sender_private_key=sender.private_key,
users=users)
else:
return render_template('transactions.html', users=users)
def private():
amount = session.get('amount')
sender_public_key = session.get('sender_public_key')
receiver_public_key = session.get('receiver_public_key')
sender = User.query.filter(User.balance==100).first()
print(sender.public_key)
print(sender_public_key=='174ebb9e859c11eaadabd983fb560cf7')
print(type(sender_public_key))
print(sender_public_key)
print(sender)
if request.method == 'GET':
return render_template('private.html', amount=amount,
from_whom=sender_public_key, to_whom=receiver_public_key)
elif request.method == 'POST':
input_private_key = request.form['private']
nodes_numbers = []
for i in range(1, 7):
nodes_numbers.append(request.form.get(f'node{i}'))
if input_private_key == sender.private_key:
if nodes_numbers.count(None) < 3:
block_data = write_block(from_who=sender_public_key,
to_whom=receiver_public_key, amount=amount)
write_block_to_nodes(from_who=sender_public_key,
to_whom=receiver_public_key, amount=amount)
return render_template('private.html', block=block_data, confirmation='Transaction added to the blockchain!')
else:
return render_template('private.html', deny="Not enough nodes to change the blockchain!")
else:
wrong = 'The Private Key is incorrect'
return render_template('private.html', wrong=wrong)
def transaction():
users = User.query.all()
if request.method == 'POST':
if request.form.get('private'):
sender_public_key = request.form.get('read_only_sender')
receiver_public_key = request.form.get('read_only_receiver')
amount = request.form.get('read_only_amount')
sender = User.query.filter_by(public_key=sender_public_key).first()
receiver = User.query.filter_by(
public_key=receiver_public_key).first()
if sender.private_key == request.form.get('private'):
block_data = write_block(from_who=sender_public_key,
to_whom=receiver_public_key,
amount=amount)
write_block_to_nodes(from_who=sender_public_key,
to_whom=receiver_public_key,
amount=amount)
sender.balance -= int(amount)
receiver.balance += amount
return render_template(
'transactions.html',
confirmation='Transaction added to the blockchain!',
block=block_data)
else:
wrong = 'The Private Key is incorrect'
return render_template('transactions.html', wrong=wrong)
else:
sender_public_key = request.form.get('from')
receiver_public_key = request.form.get('to')
amount = request.form.get('amount')
sender = User.query.filter_by(public_key=sender_public_key).first()
print(sender)
print(sender)
return render_template('transactions.html',
sender=sender_public_key,
receiver=receiver_public_key,
amount=amount,
sender_private_key=sender.private_key,
users=users)
else:
return render_template('transactions.html', users=users)
from functions import genesis
from functions import write_block, change_block, repair_integrity
import os
from_who = 'ivan'
to_whom = 'petr'
amount = 1002
def create_dir(num):
if not os.path.exists('{}'.format(num)):
os.makedirs('{}'.format(num))
return ('Done!')
write_block(from_who,to_whom,amount)
#genesis()
#create_dir(2)
receiver_public_key = session.get('receiver_public_key')
sender = User.query.filter(User.public_key==sender_public_key).first()
print(type(sender_public_key))
print(sender_public_key)
print(sender)
if request.method == 'GET':
return render_template('private.html', amount=amount,
from_whom=sender_public_key, to_whom=receiver_public_key)
elif request.method == 'POST':
input_private_key = request.form['private']
nodes_numbers = []
for i in range(1, 7):
nodes_numbers.append(request.form.get(f'node{i}'))
if input_private_key == sender.private_key:
if nodes_numbers.count(None) < 3:
block_data = write_block(from_who=sender_public_key,
to_whom=receiver_public_key, amount=amount)
write_block_to_nodes(from_who=sender_public_key,
to_whom=receiver_public_key, amount=amount)
return render_template('private.html', block=block_data, confirmation='Transaction added to the blockchain!')
else:
return render_template('private.html', deny="Not enough nodes to change the blockchain!")
else:
wrong = 'The Private Key is incorrect'
return render_template('private.html', wrong=wrong)
@app.route('/blockchain/', methods=['GET'])
def blockchain():
blocks_dict = {}
files = int_and_sort(os.listdir(blockchain_dir))
for filename in reversed(files[1:]):
