def add_block(new_block):
block = Block()
block.id = new_block['id']
block.creator = new_block['creator']
block.created_at = datetime.datetime.strptime(new_block['created_at'],
'%Y-%m-%d %H:%M:%S.%f')
block.prev_hash = new_block['prev_hash']
block.hash = new_block['hash']
block.difficulty = new_block['difficulty']
block.suffix = new_block['suffix']
block.root_hash = new_block['root_hash']
fx_session.add(block)
return block
def post_block():
new_block = request.get_json()
last_block = Block.query.order_by(Block.id.desc()).first()
if not new_block:
return jsonify(result='failed',
message="empty block."), 400
if not last_block and new_block['id'] != 1:
Block.sync(
Node.query.order_by(
Node.last_connected_at.desc()).first())
return jsonify(result='failed',
message="new block isn't our next block."), 403
if (new_block['id'] > 1 and
(new_block['id'] != last_block.id + 1 or
new_block['prev_hash'] != last_block.hash)):
if new_block['id'] > last_block.id + 1:
Block.sync(
Node.query.order_by(
Node.last_connected_at.desc()).first())
return jsonify(result='failed',
message="new block isn't our next block."), 403
block = Block()
block.id = new_block['id']
block.creator = new_block['creator']
block.created_at = datetime.datetime.strptime(
new_block['created_at'], '%Y-%m-%d %H:%M:%S.%f')
block.prev_hash = new_block['prev_hash']
block.hash = new_block['hash']
block.difficulty = new_block['difficulty']
block.suffix = new_block['suffix']
block.root_hash = new_block['root_hash']
for new_move in new_block['moves']:
move = Move.query.get(new_move['id'])
if not move:
move = Move(
id=new_move['id'],
user=new_move['user'],
name=new_move['name'],
signature=new_move['signature'],
tax=new_move['tax'],
details=new_move['details'],
created_at=datetime.datetime.strptime(
new_move['created_at'], '%Y-%m-%d %H:%M:%S.%f'
),
block_id=block.id,
)
if not move.valid:
return jsonify(result='failed',
message=f"move {move.id} isn't valid."), 400
block.moves.append(move)
if not block.valid:
return jsonify(result='failed',
message="new block isn't valid."), 400
db.session.add(block)
db.session.commit()
sent_node = Node()
if 'sent_node' in new_block:
sent_node.url = new_block['sent_node']
block_broadcast.delay(
block.id,
sent_node_url=sent_node.url,
my_node_url=f'{request.scheme}://{request.host}'
)
return jsonify(result='success')