def send_request(self, order_id):
new_order_info = self.buyer.query_order(order_id)
message = Message()
buyer_data = message.buyer_data
message.type = Message.BUYER_DATA
buyer_data.order_id = order_id
buyer_data.seller_addr = to_bytes(hexstr=new_order_info[3])
buyer_data.buyer_addr = to_bytes(hexstr=new_order_info[2])
buyer_data.market_hash = new_order_info[0]
sign_message = SignMessage()
sign_message.public_key = Encoder.str_to_base64_byte(
self.market_client.pub_key)
sign_message.data = message.SerializeToString()
sign_message.signature = crypto.ECCipher.generate_signature(
Encoder.str_to_base64_byte(self.market_client.priv_key),
sign_message.data)
d = start_client(sign_message)
def update_buyer_db(file_uuid, file_path, new_order_id):
market_hash = Encoder.bytes_to_base64_str(
self.buyer.query_order(new_order_id)[0])
session.query(BuyerFileInfo).filter(BuyerFileInfo.order_id == order_id). \
update({BuyerFileInfo.market_hash: market_hash,
BuyerFileInfo.is_downloaded: True,
BuyerFileInfo.file_uuid: file_uuid,
BuyerFileInfo.path: file_path,
BuyerFileInfo.size: os.path.getsize(file_path)
}, synchronize_session=False)
session.commit()
return market_hash
def buyer_request_proxy_callback(message):
print("Inside buyer request callback.")
assert message.type == Message.PROXY_REPLY
proxy_reply = message.proxy_reply
if not proxy_reply.error:
print('file_uuid: %s' % proxy_reply.file_uuid)
print('AES_key: ')
print(len(proxy_reply.AES_key))
print(proxy_reply.AES_key)
file_dir = os.path.expanduser(config.wallet.download_dir)
file_path = os.path.join(file_dir, proxy_reply.file_uuid)
print(file_path)
decrypted_file = decrypt_file_aes(file_path,
proxy_reply.AES_key)
print('Decrypted file path ' + str(decrypted_file))
update_buyer_db(proxy_reply.file_uuid, decrypted_file,
order_id)
self.update_treasure_pane()
self.confirm_order(order_id)
self.order_id_list.remove(order_id)
else:
print(proxy_reply.error)
d.addBoth(buyer_request_proxy_callback)
def buy_product(self, msg_hash, file_title, proxy, seller, value):
logger.debug("start to buy product")
seller_addr = get_address_from_public_key_object(seller)
desc_hash = Encoder.str_to_base64_byte(msg_hash)
rsa_key = RSACipher.load_public_key()
# rsa_key = self.broker.wallet.market_client.public_key
logger.debug("desc hash: %s", desc_hash)
logger.info('Value: %s', value)
product = OrderInfo(
desc_hash=desc_hash,
buyer_rsa_pubkey=rsa_key,
seller=self.broker.buyer.web3.toChecksumAddress(seller_addr),
proxy=self.broker.buyer.web3.toChecksumAddress(proxy),
secondary_proxy=self.broker.buyer.web3.toChecksumAddress(proxy),
proxy_value=10,
value=value,
time_allowed=3600 * 24
)
logger.debug("product info has been created")
logger.debug("product info: %s", product)
logger.debug("seller address: %s", product.seller)
d_placed_order = deferToThread(self.broker.buyer.place_order, product)
def add_bought_order(order_id):
logger.debug("start to update local database")
new_buyer_file_info = BuyerFileInfo(order_id=order_id,
market_hash=Encoder.bytes_to_base64_str(desc_hash),
file_title=file_title, is_downloaded=False)
add_file(new_buyer_file_info)
logger.debug("update local db completed")
event.emit(events.PAY, (order_id, msg_hash))
# Update the purchased downloaded tab in the main window of wallet
d_placed_order.addCallback(add_bought_order)
def buyer_place_order(self, product, proxy):
buyer_rsa_pubkey = self.rsa_public_key
desc_hash = Encoder.str_to_base64_byte(product['msg_hash'])
public_key = ECCipher.create_public_key(
Encoder.hex_to_bytes(product['owner_address']))
seller_addr = w3.toChecksumAddress(
ECCipher.get_address_from_public_key(public_key))
proxy = w3.toChecksumAddress(proxy)
product = OrderInfo(desc_hash=desc_hash,
buyer_rsa_pubkey=buyer_rsa_pubkey,
seller=seller_addr,
proxy=proxy,
secondary_proxy=proxy,
proxy_value=100,
value=product['price'],
time_allowed=3600 * 24)
w3.personal.unlockAccount(self.account.address, _passphrase)
order_id = self.buyer_agent.place_order(product)
# w3.personal.lockAccount(self.account.address)
# return -1 if failure
return order_id
def send_request(self):
new_order = self.query_new_order()
if len(new_order) != 0:
for new_order_id in new_order:
new_order_info = self.seller.query_order(new_order_id)
print('In seller send request: new oder infomation:')
market_hash = new_order_info[0]
buyer_rsa_pubkey = new_order_info[1]
raw_aes_key = session.query(FileInfo.aes_key)\
.filter(FileInfo.market_hash == Encoder.bytes_to_base64_str(market_hash))\
.all()[0][0]
encrypted_aes_key = load_der_public_key(
buyer_rsa_pubkey, backend=default_backend()).encrypt(
raw_aes_key,
padding.OAEP(
mgf=padding.MGF1(algorithm=hashes.SHA256()),
algorithm=hashes.SHA256(),
label=None))
print("Encrypted_aes_key length" + str(len(encrypted_aes_key)))
storage_type = Message.Storage.IPFS
ipfs_gateway = config.proxy.default_ipfs_gateway
file_hash = session.query(FileInfo.hashcode)\
.filter(FileInfo.market_hash == Encoder.bytes_to_base64_str(market_hash))\
.all()[0][0]
message = Message()
seller_data = message.seller_data
message.type = Message.SELLER_DATA
seller_data.order_id = new_order_id
seller_data.seller_addr = to_bytes(hexstr=new_order_info[3])
seller_data.buyer_addr = to_bytes(hexstr=new_order_info[2])
seller_data.market_hash = market_hash
seller_data.AES_key = encrypted_aes_key
storage = seller_data.storage
storage.type = storage_type
ipfs = storage.ipfs
ipfs.file_hash = file_hash.encode('utf-8')
ipfs.gateway = ipfs_gateway
sign_message = SignMessage()
sign_message.public_key = Encoder.str_to_base64_byte(
self.market_client.pub_key)
sign_message.data = message.SerializeToString()
sign_message.signature = crypto.ECCipher.generate_signature(
Encoder.str_to_base64_byte(self.market_client.priv_key),
sign_message.data)
d = start_client(sign_message)
d.addBoth(self.seller_deliver_proxy_callback)
def proxy_claim_relay(self):
proxy_trans = ProxyTrans(default_web3, config.chain.core_contract)
private_key_file_path = join_with_root(config.wallet.private_key_file)
password_path = join_with_root(config.wallet.private_key_password_file)
with open(password_path) as f:
password = f.read()
priv_key, pub_key = ECCipher.geth_load_key_pair_from_private_key(
private_key_file_path, password)
priv_key_bytes = Encoder.str_to_base64_byte(priv_key)
digest = hashes.Hash(hashes.SHA256(), backend=default_backend())
digest.update(
ECCipher.generate_signature(priv_key_bytes,
to_bytes(self.trade.order_id),
password))
deliver_hash = digest.finalize()
tx_hash = proxy_trans.claim_relay(self.trade.order_id, deliver_hash)
return tx_hash
def buy_product(self, msg_hash, file_title, proxy, seller):
logger.debug("start to buy product")
seller_addr = get_address_from_public_key_object(seller)
desc_hash = Encoder.str_to_base64_byte(msg_hash)
rsa_key = RSACipher.load_public_key()
logger.debug("desc hash: %s", desc_hash)
product = OrderInfo(
desc_hash=desc_hash,
buyer_rsa_pubkey=rsa_key,
seller=self.broker.buyer.web3.toChecksumAddress(seller_addr),
proxy=self.broker.buyer.web3.toChecksumAddress(proxy),
secondary_proxy=self.broker.buyer.web3.toChecksumAddress(proxy),
proxy_value=10,
value=20,
time_allowed=1000)
logger.debug("product info has been created")
logger.debug("product info: %s", product)
logger.debug("seller address: %s", product.seller)
logger.debug("bought order queue size: %s",
self.broker.bought_order_queue.qsize())
d_placed_order = deferToThread(self.broker.buyer.place_order, product)
def add_bought_order(order_id):
logger.debug("order has been placed to chain")
self.broker.bought_order_queue.put(order_id)
logger.debug("new order has been put into bought order queue")
logger.debug("bought order queue size: %s",
self.broker.bought_order_queue.qsize())
logger.debug("start to update local database")
new_buyer_file_info = BuyerFileInfo(
order_id=order_id,
market_hash=Encoder.bytes_to_base64_str(desc_hash),
file_title=file_title,
is_downloaded=False)
add_file(new_buyer_file_info)
logger.debug("update local db completed")
# Update the purchased downloaded tab in the main window of wallet
self.broker.wallet.main_wnd.update_purchased_tab('downloading')
d_placed_order.addCallback(add_bought_order)
return self.broker.bought_order_queue