def test_announce_peer_Received_sendsValidResponse(self):
kresponder = Patched_KRPC_Responder()
# announce_peer queries need a token (the token value
# comes in response to a get_peers query)
# So first, we need to "receive" a get_peers query
# get_peers creation and "receiving"
query = Query()
query.rpctype = "get_peers"
query._from = 123
query._transaction_id = 150
query.target_id = 800
kresponder.datagramReceived(krpc_coder.encode(query),
test_address)
response = kresponder.sendResponse.response
# announce_peer creation and "receiving"
incoming_query = Query()
incoming_query._transaction_id = 999
incoming_query._from = query._from
incoming_query.rpctype = "announce_peer"
incoming_query.token = response.token
incoming_query.port = 55
incoming_query.target_id = query.target_id
# Test the announce_peer response
expected_response = Response()
expected_response._from = kresponder.node_id
expected_response._transaction_id = incoming_query._transaction_id
expected_response.rpctype = "announce_peer"
# Reset the response grabber
kresponder.sendResponse.response = None
kresponder.datagramReceived(krpc_coder.encode(incoming_query),
test_address)
actual_response = kresponder.sendResponse.response
self.assertEquals(expected_response, actual_response)
def test_encode_and_decode_validPingResponse(self):
r = Response()
r._transaction_id = 2095
r._from = 2**15
processed_response = encode_and_decode(r)
self.assertEquals(r._transaction_id, processed_response._transaction_id)
self.assertEquals(r._from, processed_response._from)
def test_announce_peer_Received_sendsValidResponse(self):
kresponder = Patched_KRPC_Responder()
# announce_peer queries need a token (the token value
# comes in response to a get_peers query)
# So first, we need to "receive" a get_peers query
# get_peers creation and "receiving"
query = Query()
query.rpctype = "get_peers"
query._from = 123
query._transaction_id = 150
query.target_id = 800
kresponder.datagramReceived(krpc_coder.encode(query), test_address)
response = kresponder.sendResponse.response
# announce_peer creation and "receiving"
incoming_query = Query()
incoming_query._transaction_id = 999
incoming_query._from = query._from
incoming_query.rpctype = "announce_peer"
incoming_query.token = response.token
incoming_query.port = 55
incoming_query.target_id = query.target_id
# Test the announce_peer response
expected_response = Response()
expected_response._from = kresponder.node_id
expected_response._transaction_id = incoming_query._transaction_id
expected_response.rpctype = "announce_peer"
# Reset the response grabber
kresponder.sendResponse.response = None
kresponder.datagramReceived(krpc_coder.encode(incoming_query),
test_address)
actual_response = kresponder.sendResponse.response
self.assertEquals(expected_response, actual_response)
def test_encode_validGetPeersResponseWithNodes(self):
r = Response()
r._transaction_id = 1903890316316
r._from = 169031860931900138093217073128059
r.token = 90831
r.nodes = []
r.nodes.append(Node(2**158, ("127.0.0.1", 890)))
r.nodes.append(Node(2**15, ("127.0.0.1", 8890)))
r.nodes.append(Node(2**128, ("127.0.0.1", 1890)))
r.nodes.append(Node(2**59, ("127.0.0.1", 7890)))
r.nodes.append(Node(2**153, ("127.0.0.1", 5830)))
expected_encoding = ('d1:rd2:id20:\x00\x00\x00\x00\x00\x00\x08' +
'U{fDA\xb0\x88\xe6\x8a\xec\xf8\xe2{5:nodes130:@\x00\x00\x00' +
'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' +
'\x00\x00\x7f\x00\x00\x01\x03z\x00\x00\x00\x00\x00\x00\x00' +
'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x7f' +
'\x00\x00\x01"\xba\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00' +
'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x7f\x00\x00\x01' +
'\x07b\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08' +
'\x00\x00\x00\x00\x00\x00\x00\x7f\x00\x00\x01\x1e\xd2\x02' +
'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' +
'\x00\x00\x00\x00\x00\x7f\x00\x00\x01\x16\xc65:token' +
'3:\x01b\xcfe1:t6:\x01\xbbH\xb4\xbc\x1c1:y1:re')
encoding = encode(r)
self.assertEquals(expected_encoding, encoding)
def test_find_node_Received_sendsValidResponseMultipleNodes(self):
# Create the protocol and populate its
# routing table with nodes
kresponder = Patched_KRPC_Responder()
node_list = []
node_gen = lambda num: contact.Node(num, ("127.0.0.%d" % num, num))
for i in range(100):
n = node_gen(i)
if kresponder.routing_table.offer_node(n):
node_list.append(n)
querying_node = contact.Node(123, test_address)
incoming_query = Query()
incoming_query.rpctype = "find_node"
incoming_query._from = querying_node.node_id
incoming_query._transaction_id = 15
incoming_query.target_id = 777777
expected_response = Response()
expected_response._from = kresponder.node_id
expected_response._transaction_id = 15
expected_response.rpctype = "find_node"
node_list.sort(key = lambda node:
node.distance(incoming_query.target_id))
node_list = node_list[:constants.k]
expected_response.nodes = node_list
kresponder.datagramReceived(krpc_coder.encode(incoming_query),
test_address)
actual_response = kresponder.sendResponse.response
self.assertEquals(expected_response, actual_response)
def test_encode_and_decode_validPingResponse(self):
r = Response()
r._transaction_id = 2095
r._from = 2**15
processed_response = encode_and_decode(r)
self.assertEquals(r._transaction_id,
processed_response._transaction_id)
self.assertEquals(r._from, processed_response._from)
def setUp(self):
r = Response()
r2 = Response()
r2._transaction_id = r._transaction_id = 18095
r2._from = r._from = 15
r2.token = r.token = 1980
self.r = r
self.r2 = r2
def test_encode_validGetPeersResponseWithPeers(self):
r = Response()
r._transaction_id = 1903890316316
r._from = 169031860931900138093217073128059
r.token = 90831
r.peers = [("127.0.0.1", 80), ("4.2.2.1", 8905), ("0.0.0.0", 0),
("255.255.255.255", 65535), ("8.8.8.8", 53)]
expected_encoding = 'd1:rd2:id20:\x00\x00\x00\x00\x00\x00\x08U{fDA\xb0\x88\xe6\x8a\xec\xf8\xe2{5:token3:\x01b\xcf6:valuesl6:\x7f\x00\x00\x01\x00P6:\x04\x02\x02\x01"\xc96:\x00\x00\x00\x00\x00\x006:\xff\xff\xff\xff\xff\xff6:\x08\x08\x08\x08\x005ee1:t6:\x01\xbbH\xb4\xbc\x1c1:y1:re'
encoding = encode(r)
self.assertEquals(expected_encoding, encoding)
def test_encode_and_decode_validGetPeersResponseWithPeers(self):
r = Response()
r._transaction_id = 1903890316316
r._from = 169031860931900138093217073128059
r.token = 90831
r.peers = [("127.0.0.1", 80), ("4.2.2.1", 8905), ("0.0.0.0", 0),
("8.8.8.8", 53), ("255.255.255.255", 65535)]
processed_response = encode_and_decode(r)
self.assertEquals(r._transaction_id, processed_response._transaction_id)
self.assertEquals(r._from, processed_response._from)
self.assertEquals(r.token, processed_response.token)
self.assertEquals(r.peers, processed_response.peers)
def test_ping_Received_sendsValidResponse(self):
kresponder = Patched_KRPC_Responder()
incoming_query = Query()
incoming_query.rpctype = "ping"
incoming_query._from = 123
incoming_query._transaction_id = 15
expected_response = Response()
expected_response._from = kresponder.node_id
expected_response._transaction_id = 15
expected_response.rpctype = "ping"
kresponder.datagramReceived(krpc_coder.encode(incoming_query),
test_address)
actual_response = kresponder.sendResponse.response
self.assertEquals(expected_response, actual_response)
def test_ping_Received_sendsValidResponse(self):
kresponder = Patched_KRPC_Responder()
incoming_query = Query()
incoming_query.rpctype = "ping"
incoming_query._from = 123
incoming_query._transaction_id = 15
expected_response = Response()
expected_response._from = kresponder.node_id
expected_response._transaction_id = 15
expected_response.rpctype = "ping"
kresponder.datagramReceived(krpc_coder.encode(incoming_query),
test_address)
actual_response = kresponder.sendResponse.response
self.assertEquals(expected_response, actual_response)
def test_announce_peer_Received_validTokenAddsPeer(self):
kresponder = Patched_KRPC_Responder()
# announce_peer queries need a token (the token value
# comes in response to a get_peers query)
# So first, we need to "receive" a get_peers query
# get_peers creation and "receiving"
query = Query()
query.rpctype = "get_peers"
query._from = 123
query._transaction_id = 150
query.target_id = 800
kresponder.datagramReceived(krpc_coder.encode(query),
test_address)
response = kresponder.sendResponse.response
# announce_peer creation and "receiving"
incoming_query = Query()
incoming_query._transaction_id = 999
incoming_query._from = query._from
incoming_query.rpctype = "announce_peer"
incoming_query.token = response.token
incoming_query.port = 55
incoming_query.target_id = query.target_id
# Test the announce_peer response
expected_response = Response()
expected_response._from = kresponder.node_id
expected_response._transaction_id = incoming_query._transaction_id
expected_response.rpctype = "announce_peer"
# Reset the response grabber
kresponder.sendResponse.response = None
kresponder.datagramReceived(krpc_coder.encode(incoming_query),
test_address)
actual_response = kresponder.sendResponse.response
self.assertEquals(expected_response, actual_response)
# Check to see if another get_peers query will return us
# as a peer
query = Query()
query.rpctype = "get_peers"
query._from = 123
query._transaction_id = 9809831
query.target_id = 800
kresponder.datagramReceived(krpc_coder.encode(query),
test_address)
response = kresponder.sendResponse.response
self.assertEquals(1, len(response.peers))
test_ip, test_port = test_address
returned_peer = list(response.peers)[0]
self.assertEquals((test_ip, incoming_query.port), returned_peer)
def test_announce_peer_Received_validTokenAddsPeer(self):
kresponder = Patched_KRPC_Responder()
# announce_peer queries need a token (the token value
# comes in response to a get_peers query)
# So first, we need to "receive" a get_peers query
# get_peers creation and "receiving"
query = Query()
query.rpctype = "get_peers"
query._from = 123
query._transaction_id = 150
query.target_id = 800
kresponder.datagramReceived(krpc_coder.encode(query), test_address)
response = kresponder.sendResponse.response
# announce_peer creation and "receiving"
incoming_query = Query()
incoming_query._transaction_id = 999
incoming_query._from = query._from
incoming_query.rpctype = "announce_peer"
incoming_query.token = response.token
incoming_query.port = 55
incoming_query.target_id = query.target_id
# Test the announce_peer response
expected_response = Response()
expected_response._from = kresponder.node_id
expected_response._transaction_id = incoming_query._transaction_id
expected_response.rpctype = "announce_peer"
# Reset the response grabber
kresponder.sendResponse.response = None
kresponder.datagramReceived(krpc_coder.encode(incoming_query),
test_address)
actual_response = kresponder.sendResponse.response
self.assertEquals(expected_response, actual_response)
# Check to see if another get_peers query will return us
# as a peer
query = Query()
query.rpctype = "get_peers"
query._from = 123
query._transaction_id = 9809831
query.target_id = 800
kresponder.datagramReceived(krpc_coder.encode(query), test_address)
response = kresponder.sendResponse.response
self.assertEquals(1, len(response.peers))
test_ip, test_port = test_address
returned_peer = list(response.peers)[0]
self.assertEquals((test_ip, incoming_query.port), returned_peer)
def test_announce_peer_Received_invalidTokenDoesntAddPeer(self):
kresponder = Patched_KRPC_Responder()
# announce_peer queries need a token (the token value
# comes in response to a get_peers query)
# So first, we need to "receive" a get_peers query
# get_peers creation and "receiving"
query = Query()
query.rpctype = "get_peers"
query._from = 123
query._transaction_id = 150
query.target_id = 800
kresponder.datagramReceived(krpc_coder.encode(query),
test_address)
response = kresponder.sendResponse.response
# announce_peer creation and "receiving"
incoming_query = Query()
incoming_query._transaction_id = 999
incoming_query._from = query._from
incoming_query.rpctype = "announce_peer"
incoming_query.token = 5858585858 # this is an invalid token
incoming_query.port = 55
incoming_query.target_id = query.target_id
# Test the announce_peer response
expected_response = Response()
expected_response._from = kresponder.node_id
expected_response._transaction_id = incoming_query._transaction_id
# Reset the response grabber
kresponder.sendResponse.response = None
kresponder.datagramReceived(krpc_coder.encode(incoming_query),
test_address)
actual_response = kresponder.sendResponse.response
# Make sure we didnt send a response
self.assertEquals(None, actual_response)
# Check to see if another get_peers query will return us
# as a peer
query = Query()
query.rpctype = "get_peers"
query._from = 123
query._transaction_id = 9809831
query.target_id = 800
kresponder.datagramReceived(krpc_coder.encode(query),
test_address)
response = kresponder.sendResponse.response
# Make sure no peers were returned
self.assertEquals(None, response.peers)
def test_announce_peer_Received_invalidTokenDoesntAddPeer(self):
kresponder = Patched_KRPC_Responder()
# announce_peer queries need a token (the token value
# comes in response to a get_peers query)
# So first, we need to "receive" a get_peers query
# get_peers creation and "receiving"
query = Query()
query.rpctype = "get_peers"
query._from = 123
query._transaction_id = 150
query.target_id = 800
kresponder.datagramReceived(krpc_coder.encode(query), test_address)
response = kresponder.sendResponse.response
# announce_peer creation and "receiving"
incoming_query = Query()
incoming_query._transaction_id = 999
incoming_query._from = query._from
incoming_query.rpctype = "announce_peer"
incoming_query.token = 5858585858 # this is an invalid token
incoming_query.port = 55
incoming_query.target_id = query.target_id
# Test the announce_peer response
expected_response = Response()
expected_response._from = kresponder.node_id
expected_response._transaction_id = incoming_query._transaction_id
# Reset the response grabber
kresponder.sendResponse.response = None
kresponder.datagramReceived(krpc_coder.encode(incoming_query),
test_address)
actual_response = kresponder.sendResponse.response
# Make sure we didnt send a response
self.assertEquals(None, actual_response)
# Check to see if another get_peers query will return us
# as a peer
query = Query()
query.rpctype = "get_peers"
query._from = 123
query._transaction_id = 9809831
query.target_id = 800
kresponder.datagramReceived(krpc_coder.encode(query), test_address)
response = kresponder.sendResponse.response
# Make sure no peers were returned
self.assertEquals(None, response.peers)
def test_get_peers_Received_sendsValidResponseWithPeers(self):
# Create the protocol and populate its
# routing table with nodes
kresponder = Patched_KRPC_Responder()
peers = [("127.0.0.%d" % peer_num, peer_num) for peer_num in range(10)]
incoming_query = Query()
incoming_query.rpctype = "get_peers"
incoming_query._from = 555
incoming_query._transaction_id = 15
# We have this target id in our routing table
incoming_query.target_id = 77
expected_response = Response()
expected_response._from = kresponder.node_id
expected_response._transaction_id = 15
expected_response.peers = peers
expected_response.rpctype = "get_peers"
ds = kresponder._datastore
for peer in peers:
ds[incoming_query.target_id].add(peer)
kresponder.datagramReceived(krpc_coder.encode(incoming_query),
test_address)
actual_response = kresponder.sendResponse.response
# Grab the autogenerated token and sort the peers to
# match our expected order
expected_response.token = actual_response.token
ap = actual_response
ap.peers = sorted(ap.peers, key=lambda (ip, port): port)
actual_response.peers.sort(key=lambda (ip, port): port)
self.assertEquals(expected_response, actual_response)
def test_find_node_Received_sendsValidResponseWithTargetNode(self):
# Create the protocol and populate its
# routing table with nodes
# We need a node_id close to 'target_id' so that our kbuckets split
# in a way that we will have the target id
target_id = 76
our_id = target_id - 1
kresponder = Patched_KRPC_Responder(node_id=our_id)
node_list = []
node_gen = lambda num: contact.Node(num, ("127.0.0.%d" % num, num))
for i in range(100):
if i != our_id:
n = node_gen(i)
node_was_accepted = kresponder.routing_table.offer_node(n)
if node_was_accepted:
node_list.append(n)
querying_node = contact.Node(123, test_address)
incoming_query = Query()
incoming_query.rpctype = "find_node"
incoming_query._from = querying_node.node_id
incoming_query._transaction_id = 15
# We have this target id in our routing table
incoming_query.target_id = target_id
expected_response = Response()
expected_response._from = kresponder.node_id
expected_response._transaction_id = 15
expected_response.rpctype = "find_node"
# The response node_list should contain only the target node
node_list = filter(lambda node: node.node_id == target_id, node_list)
expected_response.nodes = node_list
if len(node_list) != 1:
self.fail("Too many or too few nodes!")
kresponder.datagramReceived(krpc_coder.encode(incoming_query),
test_address)
actual_response = kresponder.sendResponse.response
self.assertEquals(expected_response, actual_response)
def test_build_response(self):
nodes = None
token = 8192
peers = None
r = self.q.build_response(nodes, token, peers)
q = self.q
expected_r = Response(_transaction_id=q._transaction_id,
rpctype=q.rpctype,
nodes=nodes,
token=token,
peers=peers)
self.assertEquals(expected_r, r)
def test_encode_validGetPeersResponseWithNodes(self):
r = Response()
r._transaction_id = 1903890316316
r._from = 169031860931900138093217073128059
r.token = 90831
r.nodes = [
Node(2**158, ("127.0.0.1", 890)),
Node(2**15, ("127.0.0.1", 8890)),
Node(2**128, ("127.0.0.1", 1890)),
Node(2**59, ("127.0.0.1", 7890)),
Node(2**153, ("127.0.0.1", 5830))
]
expected_encoding = (
'd1:rd2:id20:\x00\x00\x00\x00\x00\x00\x08' +
'U{fDA\xb0\x88\xe6\x8a\xec\xf8\xe2{5:nodes130:@\x00\x00\x00' +
'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' +
'\x00\x00\x7f\x00\x00\x01\x03z\x00\x00\x00\x00\x00\x00\x00' +
'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x7f' +
'\x00\x00\x01"\xba\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00' +
'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x7f\x00\x00\x01' +
'\x07b\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08' +
'\x00\x00\x00\x00\x00\x00\x00\x7f\x00\x00\x01\x1e\xd2\x02' +
'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' +
'\x00\x00\x00\x00\x00\x7f\x00\x00\x01\x16\xc65:token' +
'3:\x01b\xcfe1:t6:\x01\xbbH\xb4\xbc\x1c1:y1:re')
encoding = encode(r)
self.assertEquals(expected_encoding, encoding)
def test_get_peers_Received_sendsValidResponseWithPeers(self):
# Create the protocol and populate its
# routing table with nodes
kresponder = Patched_KRPC_Responder()
peers = [("127.0.0.%d" % peer_num, peer_num) for
peer_num in range(10)]
incoming_query = Query()
incoming_query.rpctype = "get_peers"
incoming_query._from = 555
incoming_query._transaction_id = 15
# We have this target id in our routing table
incoming_query.target_id = 77
expected_response = Response()
expected_response._from = kresponder.node_id
expected_response._transaction_id = 15
expected_response.peers = peers
expected_response.rpctype = "get_peers"
ds = kresponder._datastore
for peer in peers:
ds[incoming_query.target_id].add(peer)
kresponder.datagramReceived(krpc_coder.encode(incoming_query),
test_address)
actual_response = kresponder.sendResponse.response
# Grab the autogenerated token and sort the peers to
# match our expected order
expected_response.token = actual_response.token
ap = actual_response
ap.peers = sorted(ap.peers, key=lambda (ip,port): port)
actual_response.peers.sort(key = lambda (ip, port) : port)
self.assertEquals(expected_response, actual_response)
def test_find_node_Received_sendsValidResponseMultipleNodes(self):
# Create the protocol and populate its
# routing table with nodes
kresponder = Patched_KRPC_Responder()
node_list = []
node_gen = lambda num: contact.Node(num, ("127.0.0.%d" % num, num))
for i in range(100):
n = node_gen(i)
if kresponder.routing_table.offer_node(n):
node_list.append(n)
querying_node = contact.Node(123, test_address)
incoming_query = Query()
incoming_query.rpctype = "find_node"
incoming_query._from = querying_node.node_id
incoming_query._transaction_id = 15
incoming_query.target_id = 777777
expected_response = Response()
expected_response._from = kresponder.node_id
expected_response._transaction_id = 15
expected_response.rpctype = "find_node"
node_list.sort(
key=lambda node: node.distance(incoming_query.target_id))
node_list = node_list[:constants.k]
expected_response.nodes = node_list
kresponder.datagramReceived(krpc_coder.encode(incoming_query),
test_address)
actual_response = kresponder.sendResponse.response
self.assertEquals(expected_response, actual_response)
def _response_decoder(rpc_dict):
"""
Decode the given KRPC dictionary into a valid Response
@see decode
@return krpc_types.Response
"""
r = Response()
# All responses have querier IDs
r._from = basic_coder.decode_network_id(rpc_dict['r']['id'])
# find_node always returns a list of nodes
# get_peers sometimes returns a list of nodes
if 'nodes' in rpc_dict['r']:
r.nodes = _decode_nodes(rpc_dict['r']['nodes'])
# get_peers always returns a list of peers
if 'values' in rpc_dict['r']:
r.peers = _decode_addresses(rpc_dict['r']['values'])
# get_peers returns a token
if 'token' in rpc_dict['r']:
r.token = basic_coder.btol(rpc_dict['r']['token'])
return r
def test_get_peers_Received_sendsValidResponseWithNodes(self):
# Create the protocol and populate its
# routing table with nodes
# We need a node_id close to 'target_id' so that our kbuckets split
# in a way that we will have the target id
target_id = 76
our_id = target_id - 1
kresponder = Patched_KRPC_Responder(node_id=our_id)
node_list = []
node_gen = lambda num: contact.Node(num, ("127.0.0.%d" % num, num))
for i in range(100):
if i != our_id:
n = node_gen(i)
if kresponder.routing_table.offer_node(n):
node_list.append(n)
# simulate that a get_peers query has been
# received by making a fake get_peers query
# and feeding it into "datagramReceived()"
querying_node = contact.Node(123, test_address)
incoming_query = Query()
incoming_query.rpctype = "get_peers"
incoming_query._from = querying_node.node_id
incoming_query._transaction_id = 15
# We have this target id in our routing table
incoming_query.target_id = target_id
# Create a response object and ensure
# and the response (that the node sends)
# matches what we made
expected_response = Response()
expected_response._from = kresponder.node_id
expected_response._transaction_id = incoming_query._transaction_id
expected_response.rpctype = "get_peers"
# the specification calls for the resulting
# nodes to be sorted by distance
node_list.sort(
key=lambda node: node.distance(incoming_query.target_id))
node_list = node_list[:constants.k]
expected_response.nodes = node_list
# simulating the incoming query and capture
# the outgoing response
kresponder.datagramReceived(krpc_coder.encode(incoming_query),
test_address)
actual_response = kresponder.sendResponse.response
# Grab the autogenerated token
expected_response.token = actual_response.token
self.assertEquals(expected_response, actual_response)
def test_encode_validGetPeersResponseWithPeers(self):
r = Response()
r._transaction_id = 1903890316316
r._from = 169031860931900138093217073128059
r.token = 90831
r.peers = [("127.0.0.1", 80), ("4.2.2.1", 8905), ("0.0.0.0", 0),
("255.255.255.255", 65535), ("8.8.8.8", 53)]
expected_encoding = 'd1:rd2:id20:\x00\x00\x00\x00\x00\x00\x08U{fDA\xb0\x88\xe6\x8a\xec\xf8\xe2{5:token3:\x01b\xcf6:valuesl6:\x7f\x00\x00\x01\x00P6:\x04\x02\x02\x01"\xc96:\x00\x00\x00\x00\x00\x006:\xff\xff\xff\xff\xff\xff6:\x08\x08\x08\x08\x005ee1:t6:\x01\xbbH\xb4\xbc\x1c1:y1:re'
encoding = encode(r)
self.assertEquals(expected_encoding, encoding)
def test_encode_and_decode_validGetPeersResponseWithPeers(self):
r = Response()
r._transaction_id = 1903890316316
r._from = 169031860931900138093217073128059
r.token = 90831
r.peers = [("127.0.0.1", 80), ("4.2.2.1", 8905), ("0.0.0.0", 0),
("8.8.8.8", 53), ("255.255.255.255", 65535)]
processed_response = encode_and_decode(r)
self.assertEquals(r._transaction_id,
processed_response._transaction_id)
self.assertEquals(r._from, processed_response._from)
self.assertEquals(r.token, processed_response.token)
self.assertEquals(r.peers, processed_response.peers)
def test_get_peers_Received_sendsValidResponseWithNodes(self):
# Create the protocol and populate its
# routing table with nodes
# We need a node_id close to 'target_id' so that our kbuckets split
# in a way that we will have the target id
target_id = 76
our_id = target_id - 1
kresponder = Patched_KRPC_Responder(node_id=our_id)
node_list = []
node_gen = lambda num: contact.Node(num, ("127.0.0.%d" % num, num))
for i in range(100):
if i != our_id:
n = node_gen(i)
if kresponder.routing_table.offer_node(n):
node_list.append(n)
# simulate that a get_peers query has been
# received by making a fake get_peers query
# and feeding it into "datagramReceived()"
querying_node = contact.Node(123, test_address)
incoming_query = Query()
incoming_query.rpctype = "get_peers"
incoming_query._from = querying_node.node_id
incoming_query._transaction_id = 15
# We have this target id in our routing table
incoming_query.target_id = target_id
# Create a response object and ensure
# and the response (that the node sends)
# matches what we made
expected_response = Response()
expected_response._from = kresponder.node_id
expected_response._transaction_id = incoming_query._transaction_id
expected_response.rpctype = "get_peers"
# the specification calls for the resulting
# nodes to be sorted by distance
node_list.sort(key = lambda node:
node.distance(incoming_query.target_id))
node_list = node_list[:constants.k]
expected_response.nodes = node_list
# simulating the incoming query and capture
# the outgoing response
kresponder.datagramReceived(krpc_coder.encode(incoming_query),
test_address)
actual_response = kresponder.sendResponse.response
# Grab the autogenerated token
expected_response.token = actual_response.token
self.assertEquals(expected_response, actual_response)
def test_find_node_Received_sendsValidResponseWithTargetNode(self):
# Create the protocol and populate its
# routing table with nodes
# We need a node_id close to 'target_id' so that our kbuckets split
# in a way that we will have the target id
target_id = 76
our_id = target_id - 1
kresponder = Patched_KRPC_Responder(node_id=our_id)
node_list = []
node_gen = lambda num: contact.Node(num, ("127.0.0.%d" % num, num))
for i in range(100):
if i != our_id:
n = node_gen(i)
node_was_accepted = kresponder.routing_table.offer_node(n)
if node_was_accepted:
node_list.append(n)
querying_node = contact.Node(123, test_address)
incoming_query = Query()
incoming_query.rpctype = "find_node"
incoming_query._from = querying_node.node_id
incoming_query._transaction_id = 15
# We have this target id in our routing table
incoming_query.target_id = target_id
expected_response = Response()
expected_response._from = kresponder.node_id
expected_response._transaction_id = 15
expected_response.rpctype = "find_node"
# The response node_list should contain only the target node
node_list = filter(lambda node: node.node_id == target_id, node_list)
expected_response.nodes = node_list
if len(node_list) != 1:
self.fail("Too many or too few nodes!")
kresponder.datagramReceived(krpc_coder.encode(incoming_query),
test_address)
actual_response = kresponder.sendResponse.response
self.assertEquals(expected_response, actual_response)
def _response_decoder(rpc_dict):
"""
Decode the given KRPC dictionary into a valid Response
@see decode
@return krpc_types.Response
"""
r = Response()
# All responses have querier IDs
r._from = basic_coder.decode_network_id(rpc_dict['r']['id'])
# find_node always returns a list of nodes
# get_peers sometimes returns a list of nodes
if 'nodes' in rpc_dict['r']:
r.nodes = _decode_nodes(rpc_dict['r']['nodes'])
# get_peers always returns a list of peers
if 'values' in rpc_dict['r']:
r.peers = _decode_addresses(rpc_dict['r']['values'])
# get_peers returns a token
if 'token' in rpc_dict['r']:
r.token = basic_coder.btol(rpc_dict['r']['token'])
return r
