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-rwxr-xr-xqa/rpc-tests/test_framework/mininode.py370
1 files changed, 219 insertions, 151 deletions
diff --git a/qa/rpc-tests/test_framework/mininode.py b/qa/rpc-tests/test_framework/mininode.py
index 81bb439cea..af33564114 100755
--- a/qa/rpc-tests/test_framework/mininode.py
+++ b/qa/rpc-tests/test_framework/mininode.py
@@ -20,11 +20,12 @@
import struct
import socket
import asyncore
-import binascii
import time
import sys
import random
-import cStringIO
+from binascii import hexlify, unhexlify
+from io import BytesIO
+from codecs import encode
import hashlib
from threading import RLock
from threading import Thread
@@ -33,11 +34,13 @@ import copy
BIP0031_VERSION = 60000
MY_VERSION = 60001 # past bip-31 for ping/pong
-MY_SUBVERSION = "/python-mininode-tester:0.0.1/"
+MY_SUBVERSION = b"/python-mininode-tester:0.0.2/"
MAX_INV_SZ = 50000
MAX_BLOCK_SIZE = 1000000
+COIN = 100000000L # 1 btc in satoshis
+
# Keep our own socket map for asyncore, so that we can track disconnects
# ourselves (to workaround an issue with closing an asyncore socket when
# using select)
@@ -73,12 +76,12 @@ def deser_string(f):
def ser_string(s):
if len(s) < 253:
- return chr(len(s)) + s
+ return struct.pack("B", len(s)) + s
elif len(s) < 0x10000:
- return chr(253) + struct.pack("<H", len(s)) + s
+ return struct.pack("<BH", 253, len(s)) + s
elif len(s) < 0x100000000L:
- return chr(254) + struct.pack("<I", len(s)) + s
- return chr(255) + struct.pack("<Q", len(s)) + s
+ return struct.pack("<BI", 254, len(s)) + s
+ return struct.pack("<BQ", 255, len(s)) + s
def deser_uint256(f):
@@ -128,15 +131,15 @@ def deser_vector(f, c):
def ser_vector(l):
- r = ""
+ r = b""
if len(l) < 253:
- r = chr(len(l))
+ r = struct.pack("B", len(l))
elif len(l) < 0x10000:
- r = chr(253) + struct.pack("<H", len(l))
+ r = struct.pack("<BH", 253, len(l))
elif len(l) < 0x100000000L:
- r = chr(254) + struct.pack("<I", len(l))
+ r = struct.pack("<BI", 254, len(l))
else:
- r = chr(255) + struct.pack("<Q", len(l))
+ r = struct.pack("<BQ", 255, len(l))
for i in l:
r += i.serialize()
return r
@@ -158,15 +161,15 @@ def deser_uint256_vector(f):
def ser_uint256_vector(l):
- r = ""
+ r = b""
if len(l) < 253:
- r = chr(len(l))
+ r = struct.pack("B", len(l))
elif len(l) < 0x10000:
- r = chr(253) + struct.pack("<H", len(l))
+ r = struct.pack("<BH", 253, len(l))
elif len(l) < 0x100000000L:
- r = chr(254) + struct.pack("<I", len(l))
+ r = struct.pack("<BI", 254, len(l))
else:
- r = chr(255) + struct.pack("<Q", len(l))
+ r = struct.pack("<BQ", 255, len(l))
for i in l:
r += ser_uint256(i)
return r
@@ -190,13 +193,13 @@ def deser_string_vector(f):
def ser_string_vector(l):
r = ""
if len(l) < 253:
- r = chr(len(l))
+ r = struct.pack("B", len(l))
elif len(l) < 0x10000:
- r = chr(253) + struct.pack("<H", len(l))
+ r = struct.pack("<BH", 253, len(l))
elif len(l) < 0x100000000L:
- r = chr(254) + struct.pack("<I", len(l))
+ r = struct.pack("<BI", 254, len(l))
else:
- r = chr(255) + struct.pack("<Q", len(l))
+ r = struct.pack("<BQ", 255, len(l))
for sv in l:
r += ser_string(sv)
return r
@@ -218,34 +221,34 @@ def deser_int_vector(f):
def ser_int_vector(l):
- r = ""
+ r = b""
if len(l) < 253:
- r = chr(len(l))
+ r = struct.pack("B", len(l))
elif len(l) < 0x10000:
- r = chr(253) + struct.pack("<H", len(l))
+ r = struct.pack("<BH", 253, len(l))
elif len(l) < 0x100000000L:
- r = chr(254) + struct.pack("<I", len(l))
+ r = struct.pack("<BI", 254, len(l))
else:
- r = chr(255) + struct.pack("<Q", len(l))
+ r = struct.pack("<BQ", 255, len(l))
for i in l:
r += struct.pack("<i", i)
return r
# Deserialize from a hex string representation (eg from RPC)
def FromHex(obj, hex_string):
- obj.deserialize(cStringIO.StringIO(binascii.unhexlify(hex_string)))
+ obj.deserialize(BytesIO(unhexlify(hex_string.encode('ascii'))))
return obj
# Convert a binary-serializable object to hex (eg for submission via RPC)
def ToHex(obj):
- return binascii.hexlify(obj.serialize()).decode('utf-8')
+ return hexlify(obj.serialize()).decode('ascii')
# Objects that map to bitcoind objects, which can be serialized/deserialized
class CAddress(object):
def __init__(self):
self.nServices = 1
- self.pchReserved = "\x00" * 10 + "\xff" * 2
+ self.pchReserved = b"\x00" * 10 + b"\xff" * 2
self.ip = "0.0.0.0"
self.port = 0
@@ -256,7 +259,7 @@ class CAddress(object):
self.port = struct.unpack(">H", f.read(2))[0]
def serialize(self):
- r = ""
+ r = b""
r += struct.pack("<Q", self.nServices)
r += self.pchReserved
r += socket.inet_aton(self.ip)
@@ -283,7 +286,7 @@ class CInv(object):
self.hash = deser_uint256(f)
def serialize(self):
- r = ""
+ r = b""
r += struct.pack("<i", self.type)
r += ser_uint256(self.hash)
return r
@@ -303,7 +306,7 @@ class CBlockLocator(object):
self.vHave = deser_uint256_vector(f)
def serialize(self):
- r = ""
+ r = b""
r += struct.pack("<i", self.nVersion)
r += ser_uint256_vector(self.vHave)
return r
@@ -323,7 +326,7 @@ class COutPoint(object):
self.n = struct.unpack("<I", f.read(4))[0]
def serialize(self):
- r = ""
+ r = b""
r += ser_uint256(self.hash)
r += struct.pack("<I", self.n)
return r
@@ -333,7 +336,7 @@ class COutPoint(object):
class CTxIn(object):
- def __init__(self, outpoint=None, scriptSig="", nSequence=0):
+ def __init__(self, outpoint=None, scriptSig=b"", nSequence=0):
if outpoint is None:
self.prevout = COutPoint()
else:
@@ -348,7 +351,7 @@ class CTxIn(object):
self.nSequence = struct.unpack("<I", f.read(4))[0]
def serialize(self):
- r = ""
+ r = b""
r += self.prevout.serialize()
r += ser_string(self.scriptSig)
r += struct.pack("<I", self.nSequence)
@@ -356,12 +359,12 @@ class CTxIn(object):
def __repr__(self):
return "CTxIn(prevout=%s scriptSig=%s nSequence=%i)" \
- % (repr(self.prevout), binascii.hexlify(self.scriptSig),
+ % (repr(self.prevout), hexlify(self.scriptSig),
self.nSequence)
class CTxOut(object):
- def __init__(self, nValue=0, scriptPubKey=""):
+ def __init__(self, nValue=0, scriptPubKey=b""):
self.nValue = nValue
self.scriptPubKey = scriptPubKey
@@ -370,15 +373,15 @@ class CTxOut(object):
self.scriptPubKey = deser_string(f)
def serialize(self):
- r = ""
+ r = b""
r += struct.pack("<q", self.nValue)
r += ser_string(self.scriptPubKey)
return r
def __repr__(self):
return "CTxOut(nValue=%i.%08i scriptPubKey=%s)" \
- % (self.nValue // 100000000, self.nValue % 100000000,
- binascii.hexlify(self.scriptPubKey))
+ % (self.nValue // COIN, self.nValue % COIN,
+ hexlify(self.scriptPubKey))
class CTransaction(object):
@@ -407,7 +410,7 @@ class CTransaction(object):
self.hash = None
def serialize(self):
- r = ""
+ r = b""
r += struct.pack("<i", self.nVersion)
r += ser_vector(self.vin)
r += ser_vector(self.vout)
@@ -421,12 +424,12 @@ class CTransaction(object):
def calc_sha256(self):
if self.sha256 is None:
self.sha256 = uint256_from_str(hash256(self.serialize()))
- self.hash = hash256(self.serialize())[::-1].encode('hex_codec')
+ self.hash = encode(hash256(self.serialize())[::-1], 'hex_codec').decode('ascii')
def is_valid(self):
self.calc_sha256()
for tout in self.vout:
- if tout.nValue < 0 or tout.nValue > 21000000L * 100000000L:
+ if tout.nValue < 0 or tout.nValue > 21000000 * COIN:
return False
return True
@@ -471,7 +474,7 @@ class CBlockHeader(object):
self.hash = None
def serialize(self):
- r = ""
+ r = b""
r += struct.pack("<i", self.nVersion)
r += ser_uint256(self.hashPrevBlock)
r += ser_uint256(self.hashMerkleRoot)
@@ -482,7 +485,7 @@ class CBlockHeader(object):
def calc_sha256(self):
if self.sha256 is None:
- r = ""
+ r = b""
r += struct.pack("<i", self.nVersion)
r += ser_uint256(self.hashPrevBlock)
r += ser_uint256(self.hashMerkleRoot)
@@ -490,7 +493,7 @@ class CBlockHeader(object):
r += struct.pack("<I", self.nBits)
r += struct.pack("<I", self.nNonce)
self.sha256 = uint256_from_str(hash256(r))
- self.hash = hash256(r)[::-1].encode('hex_codec')
+ self.hash = encode(hash256(r)[::-1], 'hex_codec').decode('ascii')
def rehash(self):
self.sha256 = None
@@ -513,7 +516,7 @@ class CBlock(CBlockHeader):
self.vtx = deser_vector(f, CTransaction)
def serialize(self):
- r = ""
+ r = b""
r += super(CBlock, self).serialize()
r += ser_vector(self.vtx)
return r
@@ -568,9 +571,9 @@ class CUnsignedAlert(object):
self.nMaxVer = 0
self.setSubVer = []
self.nPriority = 0
- self.strComment = ""
- self.strStatusBar = ""
- self.strReserved = ""
+ self.strComment = b""
+ self.strStatusBar = b""
+ self.strReserved = b""
def deserialize(self, f):
self.nVersion = struct.unpack("<i", f.read(4))[0]
@@ -588,7 +591,7 @@ class CUnsignedAlert(object):
self.strReserved = deser_string(f)
def serialize(self):
- r = ""
+ r = b""
r += struct.pack("<i", self.nVersion)
r += struct.pack("<q", self.nRelayUntil)
r += struct.pack("<q", self.nExpiration)
@@ -613,8 +616,8 @@ class CUnsignedAlert(object):
class CAlert(object):
def __init__(self):
- self.vchMsg = ""
- self.vchSig = ""
+ self.vchMsg = b""
+ self.vchSig = b""
def deserialize(self, f):
self.vchMsg = deser_string(f)
@@ -633,12 +636,12 @@ class CAlert(object):
# Objects that correspond to messages on the wire
class msg_version(object):
- command = "version"
+ command = b"version"
def __init__(self):
self.nVersion = MY_VERSION
self.nServices = 1
- self.nTime = time.time()
+ self.nTime = int(time.time())
self.addrTo = CAddress()
self.addrFrom = CAddress()
self.nNonce = random.getrandbits(64)
@@ -669,7 +672,7 @@ class msg_version(object):
self.nStartingHeight = None
def serialize(self):
- r = ""
+ r = b""
r += struct.pack("<i", self.nVersion)
r += struct.pack("<Q", self.nServices)
r += struct.pack("<q", self.nTime)
@@ -688,7 +691,7 @@ class msg_version(object):
class msg_verack(object):
- command = "verack"
+ command = b"verack"
def __init__(self):
pass
@@ -697,14 +700,14 @@ class msg_verack(object):
pass
def serialize(self):
- return ""
+ return b""
def __repr__(self):
return "msg_verack()"
class msg_addr(object):
- command = "addr"
+ command = b"addr"
def __init__(self):
self.addrs = []
@@ -720,7 +723,7 @@ class msg_addr(object):
class msg_alert(object):
- command = "alert"
+ command = b"alert"
def __init__(self):
self.alert = CAlert()
@@ -730,7 +733,7 @@ class msg_alert(object):
self.alert.deserialize(f)
def serialize(self):
- r = ""
+ r = b""
r += self.alert.serialize()
return r
@@ -739,7 +742,7 @@ class msg_alert(object):
class msg_inv(object):
- command = "inv"
+ command = b"inv"
def __init__(self, inv=None):
if inv is None:
@@ -758,7 +761,7 @@ class msg_inv(object):
class msg_getdata(object):
- command = "getdata"
+ command = b"getdata"
def __init__(self, inv=None):
self.inv = inv if inv != None else []
@@ -774,7 +777,7 @@ class msg_getdata(object):
class msg_getblocks(object):
- command = "getblocks"
+ command = b"getblocks"
def __init__(self):
self.locator = CBlockLocator()
@@ -786,7 +789,7 @@ class msg_getblocks(object):
self.hashstop = deser_uint256(f)
def serialize(self):
- r = ""
+ r = b""
r += self.locator.serialize()
r += ser_uint256(self.hashstop)
return r
@@ -797,7 +800,7 @@ class msg_getblocks(object):
class msg_tx(object):
- command = "tx"
+ command = b"tx"
def __init__(self, tx=CTransaction()):
self.tx = tx
@@ -813,7 +816,7 @@ class msg_tx(object):
class msg_block(object):
- command = "block"
+ command = b"block"
def __init__(self, block=None):
if block is None:
@@ -832,7 +835,7 @@ class msg_block(object):
class msg_getaddr(object):
- command = "getaddr"
+ command = b"getaddr"
def __init__(self):
pass
@@ -841,14 +844,14 @@ class msg_getaddr(object):
pass
def serialize(self):
- return ""
+ return b""
def __repr__(self):
return "msg_getaddr()"
class msg_ping_prebip31(object):
- command = "ping"
+ command = b"ping"
def __init__(self):
pass
@@ -857,14 +860,14 @@ class msg_ping_prebip31(object):
pass
def serialize(self):
- return ""
+ return b""
def __repr__(self):
return "msg_ping() (pre-bip31)"
class msg_ping(object):
- command = "ping"
+ command = b"ping"
def __init__(self, nonce=0L):
self.nonce = nonce
@@ -873,7 +876,7 @@ class msg_ping(object):
self.nonce = struct.unpack("<Q", f.read(8))[0]
def serialize(self):
- r = ""
+ r = b""
r += struct.pack("<Q", self.nonce)
return r
@@ -882,16 +885,16 @@ class msg_ping(object):
class msg_pong(object):
- command = "pong"
+ command = b"pong"
- def __init__(self, nonce=0L):
+ def __init__(self, nonce=0):
self.nonce = nonce
def deserialize(self, f):
self.nonce = struct.unpack("<Q", f.read(8))[0]
def serialize(self):
- r = ""
+ r = b""
r += struct.pack("<Q", self.nonce)
return r
@@ -900,7 +903,7 @@ class msg_pong(object):
class msg_mempool(object):
- command = "mempool"
+ command = b"mempool"
def __init__(self):
pass
@@ -909,13 +912,13 @@ class msg_mempool(object):
pass
def serialize(self):
- return ""
+ return b""
def __repr__(self):
return "msg_mempool()"
class msg_sendheaders(object):
- command = "sendheaders"
+ command = b"sendheaders"
def __init__(self):
pass
@@ -924,7 +927,7 @@ class msg_sendheaders(object):
pass
def serialize(self):
- return ""
+ return b""
def __repr__(self):
return "msg_sendheaders()"
@@ -934,7 +937,7 @@ class msg_sendheaders(object):
# vector of hashes
# hash_stop (hash of last desired block header, 0 to get as many as possible)
class msg_getheaders(object):
- command = "getheaders"
+ command = b"getheaders"
def __init__(self):
self.locator = CBlockLocator()
@@ -946,7 +949,7 @@ class msg_getheaders(object):
self.hashstop = deser_uint256(f)
def serialize(self):
- r = ""
+ r = b""
r += self.locator.serialize()
r += ser_uint256(self.hashstop)
return r
@@ -959,7 +962,7 @@ class msg_getheaders(object):
# headers message has
# <count> <vector of block headers>
class msg_headers(object):
- command = "headers"
+ command = b"headers"
def __init__(self):
self.headers = []
@@ -979,11 +982,12 @@ class msg_headers(object):
class msg_reject(object):
- command = "reject"
+ command = b"reject"
+ REJECT_MALFORMED = 1
def __init__(self):
- self.message = ""
- self.code = ""
+ self.message = b""
+ self.code = 0
self.reason = ""
self.data = 0L
@@ -991,14 +995,16 @@ class msg_reject(object):
self.message = deser_string(f)
self.code = struct.unpack("<B", f.read(1))[0]
self.reason = deser_string(f)
- if (self.message == "block" or self.message == "tx"):
+ if (self.code != self.REJECT_MALFORMED and
+ (self.message == b"block" or self.message == b"tx")):
self.data = deser_uint256(f)
def serialize(self):
r = ser_string(self.message)
r += struct.pack("<B", self.code)
r += ser_string(self.reason)
- if (self.message == "block" or self.message == "tx"):
+ if (self.code != self.REJECT_MALFORMED and
+ (self.message == b"block" or self.message == b"tx")):
r += ser_uint256(self.data)
return r
@@ -1006,6 +1012,37 @@ class msg_reject(object):
return "msg_reject: %s %d %s [%064x]" \
% (self.message, self.code, self.reason, self.data)
+# Helper function
+def wait_until(predicate, attempts=float('inf'), timeout=float('inf')):
+ attempt = 0
+ elapsed = 0
+
+ while attempt < attempts and elapsed < timeout:
+ with mininode_lock:
+ if predicate():
+ return True
+ attempt += 1
+ elapsed += 0.05
+ time.sleep(0.05)
+
+ return False
+
+class msg_feefilter(object):
+ command = b"feefilter"
+
+ def __init__(self, feerate=0L):
+ self.feerate = feerate
+
+ def deserialize(self, f):
+ self.feerate = struct.unpack("<Q", f.read(8))[0]
+
+ def serialize(self):
+ r = b""
+ r += struct.pack("<Q", self.feerate)
+ return r
+
+ def __repr__(self):
+ return "msg_feefilter(feerate=%08x)" % self.feerate
# This is what a callback should look like for NodeConn
# Reimplement the on_* functions to provide handling for events
@@ -1082,33 +1119,61 @@ class NodeConnCB(object):
def on_close(self, conn): pass
def on_mempool(self, conn): pass
def on_pong(self, conn, message): pass
+ def on_feefilter(self, conn, message): pass
+# More useful callbacks and functions for NodeConnCB's which have a single NodeConn
+class SingleNodeConnCB(NodeConnCB):
+ def __init__(self):
+ NodeConnCB.__init__(self)
+ self.connection = None
+ self.ping_counter = 1
+ self.last_pong = msg_pong()
+
+ def add_connection(self, conn):
+ self.connection = conn
+
+ # Wrapper for the NodeConn's send_message function
+ def send_message(self, message):
+ self.connection.send_message(message)
+
+ def on_pong(self, conn, message):
+ self.last_pong = message
+
+ # Sync up with the node
+ def sync_with_ping(self, timeout=30):
+ def received_pong():
+ return (self.last_pong.nonce == self.ping_counter)
+ self.send_message(msg_ping(nonce=self.ping_counter))
+ success = wait_until(received_pong, timeout)
+ self.ping_counter += 1
+ return success
# The actual NodeConn class
# This class provides an interface for a p2p connection to a specified node
class NodeConn(asyncore.dispatcher):
messagemap = {
- "version": msg_version,
- "verack": msg_verack,
- "addr": msg_addr,
- "alert": msg_alert,
- "inv": msg_inv,
- "getdata": msg_getdata,
- "getblocks": msg_getblocks,
- "tx": msg_tx,
- "block": msg_block,
- "getaddr": msg_getaddr,
- "ping": msg_ping,
- "pong": msg_pong,
- "headers": msg_headers,
- "getheaders": msg_getheaders,
- "reject": msg_reject,
- "mempool": msg_mempool
+ b"version": msg_version,
+ b"verack": msg_verack,
+ b"addr": msg_addr,
+ b"alert": msg_alert,
+ b"inv": msg_inv,
+ b"getdata": msg_getdata,
+ b"getblocks": msg_getblocks,
+ b"tx": msg_tx,
+ b"block": msg_block,
+ b"getaddr": msg_getaddr,
+ b"ping": msg_ping,
+ b"pong": msg_pong,
+ b"headers": msg_headers,
+ b"getheaders": msg_getheaders,
+ b"reject": msg_reject,
+ b"mempool": msg_mempool,
+ b"feefilter": msg_feefilter
}
MAGIC_BYTES = {
- "mainnet": "\xf9\xbe\xb4\xd9", # mainnet
- "testnet3": "\x0b\x11\x09\x07", # testnet3
- "regtest": "\xfa\xbf\xb5\xda" # regtest
+ "mainnet": b"\xf9\xbe\xb4\xd9", # mainnet
+ "testnet3": b"\x0b\x11\x09\x07", # testnet3
+ "regtest": b"\xfa\xbf\xb5\xda" # regtest
}
def __init__(self, dstaddr, dstport, rpc, callback, net="regtest", services=1):
@@ -1117,8 +1182,8 @@ class NodeConn(asyncore.dispatcher):
self.dstaddr = dstaddr
self.dstport = dstport
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
- self.sendbuf = ""
- self.recvbuf = ""
+ self.sendbuf = b""
+ self.recvbuf = b""
self.ver_send = 209
self.ver_recv = 209
self.last_sent = 0
@@ -1155,8 +1220,8 @@ class NodeConn(asyncore.dispatcher):
self.show_debug_msg("MiniNode: Closing Connection to %s:%d... "
% (self.dstaddr, self.dstport))
self.state = "closed"
- self.recvbuf = ""
- self.sendbuf = ""
+ self.recvbuf = b""
+ self.sendbuf = b""
try:
self.close()
except:
@@ -1190,43 +1255,46 @@ class NodeConn(asyncore.dispatcher):
self.sendbuf = self.sendbuf[sent:]
def got_data(self):
- while True:
- if len(self.recvbuf) < 4:
- return
- if self.recvbuf[:4] != self.MAGIC_BYTES[self.network]:
- raise ValueError("got garbage %s" % repr(self.recvbuf))
- if self.ver_recv < 209:
- if len(self.recvbuf) < 4 + 12 + 4:
- return
- command = self.recvbuf[4:4+12].split("\x00", 1)[0]
- msglen = struct.unpack("<i", self.recvbuf[4+12:4+12+4])[0]
- checksum = None
- if len(self.recvbuf) < 4 + 12 + 4 + msglen:
- return
- msg = self.recvbuf[4+12+4:4+12+4+msglen]
- self.recvbuf = self.recvbuf[4+12+4+msglen:]
- else:
- if len(self.recvbuf) < 4 + 12 + 4 + 4:
- return
- command = self.recvbuf[4:4+12].split("\x00", 1)[0]
- msglen = struct.unpack("<i", self.recvbuf[4+12:4+12+4])[0]
- checksum = self.recvbuf[4+12+4:4+12+4+4]
- if len(self.recvbuf) < 4 + 12 + 4 + 4 + msglen:
+ try:
+ while True:
+ if len(self.recvbuf) < 4:
return
- msg = self.recvbuf[4+12+4+4:4+12+4+4+msglen]
- th = sha256(msg)
- h = sha256(th)
- if checksum != h[:4]:
- raise ValueError("got bad checksum " + repr(self.recvbuf))
- self.recvbuf = self.recvbuf[4+12+4+4+msglen:]
- if command in self.messagemap:
- f = cStringIO.StringIO(msg)
- t = self.messagemap[command]()
- t.deserialize(f)
- self.got_message(t)
- else:
- self.show_debug_msg("Unknown command: '" + command + "' " +
- repr(msg))
+ if self.recvbuf[:4] != self.MAGIC_BYTES[self.network]:
+ raise ValueError("got garbage %s" % repr(self.recvbuf))
+ if self.ver_recv < 209:
+ if len(self.recvbuf) < 4 + 12 + 4:
+ return
+ command = self.recvbuf[4:4+12].split(b"\x00", 1)[0]
+ msglen = struct.unpack("<i", self.recvbuf[4+12:4+12+4])[0]
+ checksum = None
+ if len(self.recvbuf) < 4 + 12 + 4 + msglen:
+ return
+ msg = self.recvbuf[4+12+4:4+12+4+msglen]
+ self.recvbuf = self.recvbuf[4+12+4+msglen:]
+ else:
+ if len(self.recvbuf) < 4 + 12 + 4 + 4:
+ return
+ command = self.recvbuf[4:4+12].split(b"\x00", 1)[0]
+ msglen = struct.unpack("<i", self.recvbuf[4+12:4+12+4])[0]
+ checksum = self.recvbuf[4+12+4:4+12+4+4]
+ if len(self.recvbuf) < 4 + 12 + 4 + 4 + msglen:
+ return
+ msg = self.recvbuf[4+12+4+4:4+12+4+4+msglen]
+ th = sha256(msg)
+ h = sha256(th)
+ if checksum != h[:4]:
+ raise ValueError("got bad checksum " + repr(self.recvbuf))
+ self.recvbuf = self.recvbuf[4+12+4+4+msglen:]
+ if command in self.messagemap:
+ f = BytesIO(msg)
+ t = self.messagemap[command]()
+ t.deserialize(f)
+ self.got_message(t)
+ else:
+ self.show_debug_msg("Unknown command: '" + command + "' " +
+ repr(msg))
+ except Exception as e:
+ print 'got_data:', repr(e)
def send_message(self, message, pushbuf=False):
if self.state != "connected" and not pushbuf:
@@ -1236,7 +1304,7 @@ class NodeConn(asyncore.dispatcher):
data = message.serialize()
tmsg = self.MAGIC_BYTES[self.network]
tmsg += command
- tmsg += "\x00" * (12 - len(command))
+ tmsg += b"\x00" * (12 - len(command))
tmsg += struct.pack("<I", len(data))
if self.ver_send >= 209:
th = sha256(data)
@@ -1248,11 +1316,11 @@ class NodeConn(asyncore.dispatcher):
self.last_sent = time.time()
def got_message(self, message):
- if message.command == "version":
+ if message.command == b"version":
if message.nVersion <= BIP0031_VERSION:
- self.messagemap['ping'] = msg_ping_prebip31
+ self.messagemap[b'ping'] = msg_ping_prebip31
if self.last_sent + 30 * 60 < time.time():
- self.send_message(self.messagemap['ping']())
+ self.send_message(self.messagemap[b'ping']())
self.show_debug_msg("Recv %s" % repr(message))
self.cb.deliver(self, message)