def seller_send_request_stream(self, order_info):
logger.debug("seller send request to proxy ...")
order_id = list(order_info.keys())[0]
new_order_info = order_info[order_id]
market_hash = new_order_info[0]
seller_addr = eth_addr_to_string(new_order_info[3])
buyer_addr = eth_addr_to_string(new_order_info[2])
buyer_rsa_public_key = new_order_info[1]
proxy_id = eth_addr_to_string(new_order_info[4])
session = get_session()
raw_aes_key = session.query(FileInfo.aes_key) \
.filter(FileInfo.market_hash == Encoder.bytes_to_base64_str(market_hash)) \
.all()[0][0]
logger.debug("start to encrypt aes key with buyer rsa public key")
logger.debug("raw aes key: %s", raw_aes_key)
logger.debug("buyer rsa public key: %s", buyer_rsa_public_key)
encrypted_aes_key = load_der_public_key(
buyer_rsa_public_key, backend=default_backend()).encrypt(
raw_aes_key,
padding.OAEP(mgf=padding.MGF1(algorithm=hashes.SHA256()),
algorithm=hashes.SHA256(),
label=None))
logger.debug("encrypted aes key: %s", encrypted_aes_key)
logger.debug("order info got generated")
message = Message()
seller_data = message.seller_data
message.type = Message.SELLER_DATA
seller_data.order_id = order_id
seller_data.order_type = 'stream'
seller_data.seller_addr = seller_addr
seller_data.buyer_addr = buyer_addr
seller_data.market_hash = Encoder.bytes_to_base64_str(market_hash)
seller_data.AES_key = encrypted_aes_key
storage = seller_data.storage
storage_type = session.query(FileInfo.remote_type) \
.filter(FileInfo.market_hash == Encoder.bytes_to_base64_str(market_hash)) \
.all()[0][0]
remote_uri = session.query(FileInfo.remote_uri) \
.filter(FileInfo.market_hash == Encoder.bytes_to_base64_str(market_hash)) \
.all()[0][0]
storage.type = storage_type
storage.path = remote_uri
sign_message = SignMessage()
sign_message.public_key = self.wallet.market_client.public_key
sign_message.data = message.SerializeToString()
sign_message.signature = ECCipher.create_signature(
self.wallet.market_client.account.private_key, sign_message.data)
try:
error, AES_key, urls = yield start_proxy_request(
sign_message, proxy_id)
if error:
logger.error(error)
else:
logger.debug(AES_key)
logger.debug(urls)
event.emit(events.SELLER_DELIVERY, order_id)
except Exception as e:
logger.error(e)
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))
def buyer_send_request(self, order_info):
logger.debug("buyer send request to proxy ...")
order_id = list(order_info.keys())[0]
new_order_info = order_info[order_id]
seller_addr = eth_addr_to_string(new_order_info[3])
buyer_addr = eth_addr_to_string(new_order_info[2])
proxy_id = eth_addr_to_string(new_order_info[4])
message = Message()
buyer_data = message.buyer_data
message.type = Message.BUYER_DATA
buyer_data.order_id = order_id
buyer_data.order_type = 'file'
buyer_data.seller_addr = seller_addr
buyer_data.buyer_addr = buyer_addr
buyer_data.market_hash = Encoder.bytes_to_base64_str(new_order_info[0])
sign_message = SignMessage()
sign_message.public_key = self.wallet.market_client.public_key
sign_message.data = message.SerializeToString()
sign_message.signature = ECCipher.create_signature(
self.wallet.market_client.account.private_key, sign_message.data)
error, AES_key, urls = yield start_proxy_request(
sign_message, proxy_id)
def update_buyer_db(file_uri, file_path):
market_hash = Encoder.bytes_to_base64_str(new_order_info[0])
file_uuid = file_uri.split('/')[3]
session = get_session()
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()
if error:
logger.error(error)
else:
file_name = urls[0].split('/')[3]
file_dir = join_with_rc(config.wallet.download_dir)
# create if not exists
os.makedirs(file_dir, exist_ok=True)
file_path = os.path.join(file_dir, file_name)
yield download_proxy_file(urls[0], file_path)
logger.debug("downloaded file path: %s", file_path)
decrypted_file = decrypt_file_aes(file_path, AES_key)
logger.debug('Decrypted file path: %s', str(decrypted_file))
update_buyer_db(urls[0], decrypted_file)
logger.debug("file has been downloaded")
logger.debug("put order into confirmed queue, order id: %s",
order_id)
event.emit(events.BUYER_RECEIVE, order_id)
def valid_password(password):
path = os.path.expanduser('~/.cpchain')
with shelve.open(os.path.join(path, 'account')) as file:
key_path = file.get('key_path')
with open(key_path) as f:
encrypted_key = json.load(f)
try:
web3.eth.account.decrypt(encrypted_key, password)
return True
except ValueError as e:
logger.exception(e)
event.emit(events.PASSWORD_ERROR)
return False
def buyer_send_request_stream(self, order_info):
logger.debug("buyer send request to proxy ...")
order_id = list(order_info.keys())[0]
new_order_info = order_info[order_id]
seller_addr = eth_addr_to_string(new_order_info[3])
buyer_addr = eth_addr_to_string(new_order_info[2])
proxy_id = eth_addr_to_string(new_order_info[4])
message = Message()
buyer_data = message.buyer_data
message.type = Message.BUYER_DATA
buyer_data.order_id = order_id
buyer_data.order_type = 'stream'
buyer_data.seller_addr = seller_addr
buyer_data.buyer_addr = buyer_addr
buyer_data.market_hash = Encoder.bytes_to_base64_str(new_order_info[0])
sign_message = SignMessage()
sign_message.public_key = self.wallet.market_client.public_key
sign_message.data = message.SerializeToString()
sign_message.signature = ECCipher.create_signature(
self.wallet.market_client.account.private_key, sign_message.data)
error, AES_key, urls = yield start_proxy_request(
sign_message, proxy_id)
def update_buyer_db(stream_id):
session = get_session()
session.query(BuyerFileInfo).filter(
BuyerFileInfo.order_id == order_id).update(
{
BuyerFileInfo.is_downloaded: True,
BuyerFileInfo.path: stream_id,
},
synchronize_session=False)
session.commit()
if error:
logger.error(error)
else:
update_buyer_db(json.dumps(urls))
logger.debug("Stream data has been geted")
event.emit(events.BUYER_RECEIVE, order_id)
def import_account(key_file, passwd):
with open(key_file) as f:
encrypted_key = json.load(f)
try:
private_key = web3.eth.account.decrypt(encrypted_key, passwd)
acct = web3.eth.account.privateKeyToAccount(private_key)
except ValueError as e:
logger.exception(e)
event.emit(events.PASSWORD_ERROR)
return None
try:
web3.personal.importRawKey(acct.privateKey, passwd)
except:
logger.info("account already in node's keychain")
account = Account(key_passphrase=passwd, private_key=acct.privateKey)
account.key_path = key_file
return account
def __login(account=None):
if account is None:
wallet.accounts.set_default_account(1)
account = wallet.accounts.default_account
public_key = ECCipher.serialize_public_key(account.public_key)
addr = utils.get_address_from_public_key_object(public_key)
addr = web3.toChecksumAddress(addr)
app.addr = addr
if isinstance(account.key_passphrase, str):
app.pwd = account.key_passphrase
else:
app.pwd = account.key_passphrase.decode()
wallet.market_client.account = account
wallet.market_client.public_key = ECCipher.serialize_public_key(
wallet.market_client.account.public_key)
wallet.market_client.login(app.username).addCallbacks(
lambda _: event.emit(events.LOGIN_COMPLETED))
wallet.init()
initialize_system()
app.router.redirectTo('market_page')