lbry-sdk/lbrynet/pointtraderclient/pointtraderclient.py

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from lbrynet import conf
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from twisted.web.client import Agent, FileBodyProducer, Headers, ResponseDone
from twisted.internet import threads, defer, protocol
from Crypto.Hash import SHA
from Crypto.PublicKey import RSA
from Crypto.Signature import PKCS1_PSS
from StringIO import StringIO
import time
import json
import binascii
class BeginningPrinter(protocol.Protocol):
def __init__(self, finished):
self.finished = finished
self.data = ""
def dataReceived(self, bytes):
self.data = self.data + bytes
def connectionLost(self, reason):
if reason.check(ResponseDone) is not None:
self.finished.callback(str(self.data))
else:
self.finished.errback(reason)
def read_body(response):
d = defer.Deferred()
response.deliverBody(BeginningPrinter(d))
return d
def get_body(response):
if response.code != 200:
print "\n\n\n\nbad error code\n\n\n\n"
raise ValueError(response.phrase)
else:
return read_body(response)
def get_body_from_request(path, data):
from twisted.internet import reactor
jsondata = FileBodyProducer(StringIO(json.dumps(data)))
agent = Agent(reactor)
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d = agent.request(
'POST', conf.settings.pointtrader_server + path,
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Headers({'Content-Type': ['application/json']}), jsondata)
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d.addCallback(get_body)
return d
def print_response(response):
pass
def print_error(err):
print err.getTraceback()
return err
def register_new_account(private_key):
data = {}
data['pub_key'] = private_key.publickey().exportKey()
def get_success_from_body(body):
r = json.loads(body)
if not 'success' in r or r['success'] is False:
return False
return True
d = get_body_from_request('/register/', data)
d.addCallback(get_success_from_body)
return d
def send_points(private_key, recipient_public_key, amount):
encoded_public_key = private_key.publickey().exportKey()
timestamp = time.time()
h = SHA.new()
h.update(encoded_public_key)
h.update(recipient_public_key)
h.update(str(amount))
h.update(str(timestamp))
signer = PKCS1_PSS.new(private_key)
signature = binascii.hexlify(signer.sign(h))
data = {}
data['sender_pub_key'] = encoded_public_key
data['recipient_pub_key'] = recipient_public_key
data['amount'] = amount
data['timestamp'] = timestamp
data['signature'] = signature
def get_success_from_body(body):
r = json.loads(body)
if not 'success' in r or r['success'] is False:
return False
return True
d = get_body_from_request('/send-points/', data)
d.addCallback(get_success_from_body)
return d
def get_recent_transactions(private_key):
encoded_public_key = private_key.publickey().exportKey()
timestamp = time.time()
h = SHA.new()
h.update(encoded_public_key)
h.update(str(timestamp))
signer = PKCS1_PSS.new(private_key)
signature = binascii.hexlify(signer.sign(h))
data = {}
data['pub_key'] = encoded_public_key
data['timestamp'] = timestamp
data['signature'] = signature
data['end_time'] = 0
data['start_time'] = 120
def get_transactions_from_body(body):
r = json.loads(body)
if "transactions" not in r:
raise ValueError("Invalid response: no 'transactions' field")
else:
return r['transactions']
d = get_body_from_request('/get-transactions/', data)
d.addCallback(get_transactions_from_body)
return d
def get_balance(private_key):
encoded_public_key = private_key.publickey().exportKey()
timestamp = time.time()
h = SHA.new()
h.update(encoded_public_key)
h.update(str(timestamp))
signer = PKCS1_PSS.new(private_key)
signature = binascii.hexlify(signer.sign(h))
data = {}
data['pub_key'] = encoded_public_key
data['timestamp'] = timestamp
data['signature'] = signature
def get_balance_from_body(body):
r = json.loads(body)
if not 'balance' in r:
raise ValueError("Invalid response: no 'balance' field")
else:
return float(r['balance'])
d = get_body_from_request('/get-balance/', data)
d.addCallback(get_balance_from_body)
return d
def run_full_test():
keys = []
def save_key(private_key):
keys.append(private_key)
return private_key
def check_balances_and_transactions(unused, bal1, bal2, num_transactions):
def assert_balance_is(actual, expected):
assert abs(actual - expected) < .05
print "correct balance. actual:", str(actual), "expected:", str(expected)
return True
def assert_transaction_length_is(transactions, expected_length):
assert len(transactions) == expected_length
print "correct transaction length"
return True
d1 = get_balance(keys[0])
d1.addCallback(assert_balance_is, bal1)
d2 = get_balance(keys[1])
d2.addCallback(assert_balance_is, bal2)
d3 = get_recent_transactions(keys[0])
d3.addCallback(assert_transaction_length_is, num_transactions)
d4 = get_recent_transactions(keys[1])
d4.addCallback(assert_transaction_length_is, num_transactions)
dl = defer.DeferredList([d1, d2, d3, d4])
return dl
def do_transfer(unused, amount):
d = send_points(keys[0], keys[1].publickey().exportKey(), amount)
return d
d1 = threads.deferToThread(RSA.generate, 4096)
d1.addCallback(save_key)
d1.addCallback(register_new_account)
d2 = threads.deferToThread(RSA.generate, 4096)
d2.addCallback(save_key)
d2.addCallback(register_new_account)
dlist = defer.DeferredList([d1, d2])
dlist.addCallback(check_balances_and_transactions, 1000, 1000, 0)
dlist.addCallback(do_transfer, 50)
dlist.addCallback(check_balances_and_transactions, 950, 1050, 1)
dlist.addCallback(do_transfer, 75)
dlist.addCallback(check_balances_and_transactions, 875, 1125, 2)
dlist.addErrback(print_error)
if __name__ == "__main__":
from twisted.internet import reactor
reactor.callLater(1, run_full_test)
reactor.callLater(25, reactor.stop)
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reactor.run()