def make_offer(self, peer, blobs):
offer_count = self.offers_sent.get(peer, 0)
self._add_offer_sent(peer)
if peer in self.accepted_offers:
# if there was a previous accepted offer, use that
offer = self.accepted_offers[peer]
elif offer_count == 0 and self.is_generous:
# Try asking for it for free
offer = Offer(Decimal(0.0))
else:
rates = [self.price_model.calculate_price(blob) for blob in blobs]
price = self._make_rate_offer(rates, offer_count)
offer = Offer(price)
return offer
def _handle_price_response(self, response_dict, request):
assert request.response_identifier == 'blob_data_payment_rate'
if 'blob_data_payment_rate' not in response_dict:
return InvalidResponseError("response identifier not in response")
offer_value = self.protocol_offers.pop(self.protocol)
offer = Offer(offer_value)
offer.handle(response_dict['blob_data_payment_rate'])
self.payment_rate_manager.record_offer_reply(self.peer, offer)
if offer.is_accepted:
log.info("Offered rate %f/mb accepted by %s", offer.rate, self.peer.host)
self.protocol_prices[self.protocol] = offer.rate
return True
elif offer.is_too_low:
log.debug("Offered rate %f/mb rejected by %s", offer.rate, self.peer.host)
return not self.payment_rate_manager.price_limit_reached(self.peer)
else:
log.warning("Price disagreement")
self.requestor._price_disagreements.append(self.peer)
return False
def _handle_price_response(self, response_dict, request):
assert request.response_identifier == 'blob_data_payment_rate'
if 'blob_data_payment_rate' not in response_dict:
return InvalidResponseError("response identifier not in response")
offer_value = self.protocol_offers.pop(self.protocol)
offer = Offer(offer_value)
offer.handle(response_dict['blob_data_payment_rate'])
self.payment_rate_manager.record_offer_reply(self.peer, offer)
if offer.is_accepted:
log.info("Offered rate %f/mb accepted by %s", offer.rate, self.peer.host)
self.protocol_prices[self.protocol] = offer.rate
return True
elif offer.is_too_low:
log.debug("Offered rate %f/mb rejected by %s", offer.rate, self.peer.host)
return not self.payment_rate_manager.price_limit_reached(self.peer)
else:
log.warning("Price disagreement")
self.requestor._price_disagreements.append(self.peer)
return False
def calculate_negotation_turns(client_base,
host_base,
host_is_generous=True,
client_is_generous=True):
blobs = [
'b2e48bb4c88cf46b76adf0d47a72389fae0cd1f19ed27dc5'
'09138c99509a25423a4cef788d571dca7988e1dca69e6fa0',
'd7c82e6cac093b3f16107d2ae2b2c75424f1fcad2c7fbdbe'
'66e4a13c0b6bd27b67b3a29c403b82279ab0f7c1c48d6787',
'5a450b416275da4bdff604ee7b58eaedc7913c5005b7184f'
'c3bc5ef0b1add00613587f54217c91097fc039ed9eace9dd',
'f99d24cd50d4bfd77c2598bfbeeb8415bf0feef21200bdf0'
'b8fbbde7751a77b7a2c68e09c25465a2f40fba8eecb0b4e0',
'9dbda74a472a2e5861a5d18197aeba0f5de67c67e401124c'
'243d2f0f41edf01d7a26aeb0b5fc9bf47f6361e0f0968e2c',
'91dc64cf1ff42e20d627b033ad5e4c3a4a96856ed8a6e3fb'
'4cd5fa1cfba4bf72eefd325f579db92f45f4355550ace8e7',
'6d8017aba362e5c5d0046625a039513419810a0397d72831'
'8c328a5cc5d96efb589fbca0728e54fe5adbf87e9545ee07',
'6af95cd062b4a179576997ef1054c9d2120f8592eea045e9'
'667bea411d520262cd5a47b137eabb7a7871f5f8a79c92dd',
'8c70d5e2f5c3a6085006198e5192d157a125d92e73787944'
'72007a61947992768926513fc10924785bdb1761df3c37e6',
'c84aa1fd8f5009f7c4e71e444e40d95610abc1480834f835'
'eefb267287aeb10025880a3ce22580db8c6d92efb5bc0c9c'
]
host = mock.Mock()
host.host = "1.2.3.4"
client = mock.Mock()
client.host = "1.2.3.5"
client_base_prm = BasePaymentRateManager(client_base)
client_prm = NegotiatedPaymentRateManager(client_base_prm,
DummyBlobAvailabilityTracker(),
generous=client_is_generous)
host_base_prm = BasePaymentRateManager(host_base)
host_prm = NegotiatedPaymentRateManager(host_base_prm,
DummyBlobAvailabilityTracker(),
generous=host_is_generous)
blobs_to_query = get_random_sample(blobs)
accepted = False
turns = 0
while not accepted:
rate = client_prm.get_rate_blob_data(host, blobs_to_query)
offer = Offer(rate)
accepted = host_prm.accept_rate_blob_data(client, blobs_to_query,
offer)
turns += 1
return turns
def _handle_price_response(self, response_dict, request):
assert request.response_identifier == 'blob_data_payment_rate'
if 'blob_data_payment_rate' not in response_dict:
return InvalidResponseError("response identifier not in response")
assert self.protocol in self.protocol_prices
rate = self.protocol_prices[self.protocol]
offer = Offer(rate)
offer.handle(response_dict['blob_data_payment_rate'])
self.payment_rate_manager.record_offer_reply(self.peer.host, offer)
if offer.is_accepted:
log.debug("Offered rate %f/mb accepted by %s", rate,
str(self.peer.host))
return True
elif offer.is_too_low:
log.debug("Offered rate %f/mb rejected by %s", rate,
str(self.peer.host))
del self.protocol_prices[self.protocol]
return True
else:
log.warning("Price disagreement")
del self.protocol_prices[self.protocol]
self.requestor._price_disagreements.append(self.peer)
return False
def handle_queries(self, queries):
response = defer.succeed({})
log.debug("Handle query: %s", str(queries))
if self.AVAILABILITY_QUERY in queries:
self._blobs_requested = queries[self.AVAILABILITY_QUERY]
response.addCallback(lambda r: self._reply_to_availability(r, self._blobs_requested))
if self.PAYMENT_RATE_QUERY in queries:
offered_rate = queries[self.PAYMENT_RATE_QUERY]
offer = Offer(offered_rate)
if offer.rate is None:
log.warning("Empty rate offer")
response.addCallback(lambda r: self._handle_payment_rate_query(offer, r))
if self.BLOB_QUERY in queries:
incoming = queries[self.BLOB_QUERY]
response.addCallback(lambda r: self._reply_to_send_request(r, incoming))
return response