def querySeed(self, list_seed_pubkey):
"""
Query an HTTP seed and return a `list` if (ip, port) `tuple` pairs.
Args:
Receives a list of one or more tuples Example [(seed, pubkey)]
seed: A `string` consisting of "ip:port" or "hostname:port"
pubkey: The hex encoded public key to verify the signature on the response
"""
nodes = []
if not list_seed_pubkey:
self.log.error('failed to query seed {0} from ob.cfg'.format(list_seed_pubkey))
return nodes
else:
for sp in list_seed_pubkey:
seed, pubkey = sp
try:
self.log.info("querying %s for peers" % seed)
c = httplib.HTTPConnection(seed)
c.request("GET", "/")
response = c.getresponse()
self.log.debug("Http response from %s: %s, %s" % (seed, response.status, response.reason))
data = response.read()
reread_data = data.decode("zlib")
proto = peers.PeerSeeds()
proto.ParseFromString(reread_data)
for peer in proto.serializedNode:
n = objects.Node()
n.ParseFromString(peer)
tup = (str(n.nodeAddress.ip), n.nodeAddress.port)
nodes.append(tup)
verify_key = nacl.signing.VerifyKey(pubkey, encoder=nacl.encoding.HexEncoder)
verify_key.verify("".join(proto.serializedNode), proto.signature)
self.log.info("%s returned %s addresses" % (seed, len(nodes)))
except Exception, e:
self.log.error("failed to query seed: %s" % str(e))
return nodes
def initTable(results):
nodes = []
for addr, result in results.items():
if result[0]:
n = objects.Node()
try:
n.ParseFromString(result[1][0])
pubkey = n.signedPublicKey[len(n.signedPublicKey) -
32:]
verify_key = nacl.signing.VerifyKey(pubkey)
verify_key.verify(n.signedPublicKey)
h = nacl.hash.sha512(n.signedPublicKey)
hash_pow = h[64:128]
if int(hash_pow[:6], 16) >= 50 or hexlify(
n.guid) != h[:40]:
raise Exception('Invalid GUID')
nodes.append(
Node(n.guid, addr[0], addr[1], n.signedPublicKey))
except Exception:
self.log.msg("Bootstrap node returned invalid GUID")
spider = NodeSpiderCrawl(self.protocol, self.node, nodes,
self.ksize, self.alpha)
return spider.find()
def querySeed(self, list_seed_pubkey):
"""
Query an HTTP seed for known vendors and save the vendors to the db.
Args:
Receives a list of one or more tuples Example [(seed, pubkey)]
seed: A `string` consisting of "ip:port" or "hostname:port"
pubkey: The hex encoded public key to verify the signature on the response
"""
for sp in list_seed_pubkey:
seed, pubkey = sp
try:
self.log.debug("querying %s for vendors" % seed)
c = httplib.HTTPConnection(seed)
c.request("GET", "/?type=vendors")
response = c.getresponse()
self.log.debug("Http response from %s: %s, %s" %
(seed, response.status, response.reason))
data = response.read()
reread_data = data.decode("zlib")
proto = peers.PeerSeeds()
proto.ParseFromString(reread_data)
verify_key = nacl.signing.VerifyKey(
pubkey, encoder=nacl.encoding.HexEncoder)
verify_key.verify("".join(proto.serializedNode),
proto.signature)
v = self.db.VendorStore()
for peer in proto.serializedNode:
try:
n = objects.Node()
n.ParseFromString(peer)
v.save_vendor(n.guid.encode("hex"), peer)
except Exception:
pass
except Exception, e:
self.log.error("failed to query seed: %s" % str(e))
def parse_results(values):
if values is not None:
for v in values:
try:
val = Value()
val.ParseFromString(v)
n = objects.Node()
n.ParseFromString(val.serializedData)
node_to_ask = Node(n.guid, n.nodeAddress.ip, n.nodeAddress.port, n.publicKey,
None if not n.HasField("relayAddress") else
(n.relayAddress.ip, n.relayAddress.port),
n.natType, n.vendor)
if n.guid == KeyChain(self.factory.db).guid:
proto = self.factory.db.listings.get_proto()
l = Listings()
l.ParseFromString(proto)
for listing in l.listing:
if listing.contract_hash == val.valueKey:
respond(listing, node_to_ask)
else:
self.factory.mserver.get_contract_metadata(node_to_ask, val.valueKey)\
.addCallback(respond, node_to_ask)
except Exception:
pass
