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-rwxr-xr-xqa/rpc-tests/mininode.py1247
1 files changed, 1247 insertions, 0 deletions
diff --git a/qa/rpc-tests/mininode.py b/qa/rpc-tests/mininode.py
new file mode 100755
index 0000000000..c5c1bcfbbe
--- /dev/null
+++ b/qa/rpc-tests/mininode.py
@@ -0,0 +1,1247 @@
+# mininode.py - Bitcoin P2P network half-a-node
+#
+# Distributed under the MIT/X11 software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+#
+# This python code was modified from ArtForz' public domain half-a-node, as
+# found in the mini-node branch of http://github.com/jgarzik/pynode.
+#
+# NodeConn: an object which manages p2p connectivity to a bitcoin node
+# NodeConnCB: a base class that describes the interface for receiving
+# callbacks with network messages from a NodeConn
+# CBlock, CTransaction, CBlockHeader, CTxIn, CTxOut, etc....:
+# data structures that should map to corresponding structures in
+# bitcoin/primitives
+# msg_block, msg_tx, msg_headers, etc.:
+# data structures that represent network messages
+# ser_*, deser_*: functions that handle serialization/deserialization
+
+
+import struct
+import socket
+import asyncore
+import binascii
+import time
+import sys
+import random
+import cStringIO
+import hashlib
+from threading import Lock
+from threading import Thread
+import logging
+import copy
+
+BIP0031_VERSION = 60000
+MY_VERSION = 60001 # past bip-31 for ping/pong
+MY_SUBVERSION = "/python-mininode-tester:0.0.1/"
+
+MAX_INV_SZ = 50000
+
+# Serialization/deserialization tools
+def sha256(s):
+ return hashlib.new('sha256', s).digest()
+
+
+def hash256(s):
+ return sha256(sha256(s))
+
+
+def deser_string(f):
+ nit = struct.unpack("<B", f.read(1))[0]
+ if nit == 253:
+ nit = struct.unpack("<H", f.read(2))[0]
+ elif nit == 254:
+ nit = struct.unpack("<I", f.read(4))[0]
+ elif nit == 255:
+ nit = struct.unpack("<Q", f.read(8))[0]
+ return f.read(nit)
+
+
+def ser_string(s):
+ if len(s) < 253:
+ return chr(len(s)) + s
+ elif len(s) < 0x10000:
+ return chr(253) + struct.pack("<H", 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
+
+
+def deser_uint256(f):
+ r = 0L
+ for i in xrange(8):
+ t = struct.unpack("<I", f.read(4))[0]
+ r += t << (i * 32)
+ return r
+
+
+def ser_uint256(u):
+ rs = ""
+ for i in xrange(8):
+ rs += struct.pack("<I", u & 0xFFFFFFFFL)
+ u >>= 32
+ return rs
+
+
+def uint256_from_str(s):
+ r = 0L
+ t = struct.unpack("<IIIIIIII", s[:32])
+ for i in xrange(8):
+ r += t[i] << (i * 32)
+ return r
+
+
+def uint256_from_compact(c):
+ nbytes = (c >> 24) & 0xFF
+ v = (c & 0xFFFFFFL) << (8 * (nbytes - 3))
+ return v
+
+
+def deser_vector(f, c):
+ nit = struct.unpack("<B", f.read(1))[0]
+ if nit == 253:
+ nit = struct.unpack("<H", f.read(2))[0]
+ elif nit == 254:
+ nit = struct.unpack("<I", f.read(4))[0]
+ elif nit == 255:
+ nit = struct.unpack("<Q", f.read(8))[0]
+ r = []
+ for i in xrange(nit):
+ t = c()
+ t.deserialize(f)
+ r.append(t)
+ return r
+
+
+def ser_vector(l):
+ r = ""
+ if len(l) < 253:
+ r = chr(len(l))
+ elif len(l) < 0x10000:
+ r = chr(253) + struct.pack("<H", len(l))
+ elif len(l) < 0x100000000L:
+ r = chr(254) + struct.pack("<I", len(l))
+ else:
+ r = chr(255) + struct.pack("<Q", len(l))
+ for i in l:
+ r += i.serialize()
+ return r
+
+
+def deser_uint256_vector(f):
+ nit = struct.unpack("<B", f.read(1))[0]
+ if nit == 253:
+ nit = struct.unpack("<H", f.read(2))[0]
+ elif nit == 254:
+ nit = struct.unpack("<I", f.read(4))[0]
+ elif nit == 255:
+ nit = struct.unpack("<Q", f.read(8))[0]
+ r = []
+ for i in xrange(nit):
+ t = deser_uint256(f)
+ r.append(t)
+ return r
+
+
+def ser_uint256_vector(l):
+ r = ""
+ if len(l) < 253:
+ r = chr(len(l))
+ elif len(l) < 0x10000:
+ r = chr(253) + struct.pack("<H", len(l))
+ elif len(l) < 0x100000000L:
+ r = chr(254) + struct.pack("<I", len(l))
+ else:
+ r = chr(255) + struct.pack("<Q", len(l))
+ for i in l:
+ r += ser_uint256(i)
+ return r
+
+
+def deser_string_vector(f):
+ nit = struct.unpack("<B", f.read(1))[0]
+ if nit == 253:
+ nit = struct.unpack("<H", f.read(2))[0]
+ elif nit == 254:
+ nit = struct.unpack("<I", f.read(4))[0]
+ elif nit == 255:
+ nit = struct.unpack("<Q", f.read(8))[0]
+ r = []
+ for i in xrange(nit):
+ t = deser_string(f)
+ r.append(t)
+ return r
+
+
+def ser_string_vector(l):
+ r = ""
+ if len(l) < 253:
+ r = chr(len(l))
+ elif len(l) < 0x10000:
+ r = chr(253) + struct.pack("<H", len(l))
+ elif len(l) < 0x100000000L:
+ r = chr(254) + struct.pack("<I", len(l))
+ else:
+ r = chr(255) + struct.pack("<Q", len(l))
+ for sv in l:
+ r += ser_string(sv)
+ return r
+
+
+def deser_int_vector(f):
+ nit = struct.unpack("<B", f.read(1))[0]
+ if nit == 253:
+ nit = struct.unpack("<H", f.read(2))[0]
+ elif nit == 254:
+ nit = struct.unpack("<I", f.read(4))[0]
+ elif nit == 255:
+ nit = struct.unpack("<Q", f.read(8))[0]
+ r = []
+ for i in xrange(nit):
+ t = struct.unpack("<i", f.read(4))[0]
+ r.append(t)
+ return r
+
+
+def ser_int_vector(l):
+ r = ""
+ if len(l) < 253:
+ r = chr(len(l))
+ elif len(l) < 0x10000:
+ r = chr(253) + struct.pack("<H", len(l))
+ elif len(l) < 0x100000000L:
+ r = chr(254) + struct.pack("<I", len(l))
+ else:
+ r = chr(255) + struct.pack("<Q", len(l))
+ for i in l:
+ r += struct.pack("<i", i)
+ return r
+
+
+# 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.ip = "0.0.0.0"
+ self.port = 0
+
+ def deserialize(self, f):
+ self.nServices = struct.unpack("<Q", f.read(8))[0]
+ self.pchReserved = f.read(12)
+ self.ip = socket.inet_ntoa(f.read(4))
+ self.port = struct.unpack(">H", f.read(2))[0]
+
+ def serialize(self):
+ r = ""
+ r += struct.pack("<Q", self.nServices)
+ r += self.pchReserved
+ r += socket.inet_aton(self.ip)
+ r += struct.pack(">H", self.port)
+ return r
+
+ def __repr__(self):
+ return "CAddress(nServices=%i ip=%s port=%i)" % (self.nServices,
+ self.ip, self.port)
+
+
+class CInv(object):
+ typemap = {
+ 0: "Error",
+ 1: "TX",
+ 2: "Block"}
+
+ def __init__(self, t=0, h=0L):
+ self.type = t
+ self.hash = h
+
+ def deserialize(self, f):
+ self.type = struct.unpack("<i", f.read(4))[0]
+ self.hash = deser_uint256(f)
+
+ def serialize(self):
+ r = ""
+ r += struct.pack("<i", self.type)
+ r += ser_uint256(self.hash)
+ return r
+
+ def __repr__(self):
+ return "CInv(type=%s hash=%064x)" \
+ % (self.typemap[self.type], self.hash)
+
+
+class CBlockLocator(object):
+ def __init__(self):
+ self.nVersion = MY_VERSION
+ self.vHave = []
+
+ def deserialize(self, f):
+ self.nVersion = struct.unpack("<i", f.read(4))[0]
+ self.vHave = deser_uint256_vector(f)
+
+ def serialize(self):
+ r = ""
+ r += struct.pack("<i", self.nVersion)
+ r += ser_uint256_vector(self.vHave)
+ return r
+
+ def __repr__(self):
+ return "CBlockLocator(nVersion=%i vHave=%s)" \
+ % (self.nVersion, repr(self.vHave))
+
+
+class COutPoint(object):
+ def __init__(self, hash=0, n=0):
+ self.hash = hash
+ self.n = n
+
+ def deserialize(self, f):
+ self.hash = deser_uint256(f)
+ self.n = struct.unpack("<I", f.read(4))[0]
+
+ def serialize(self):
+ r = ""
+ r += ser_uint256(self.hash)
+ r += struct.pack("<I", self.n)
+ return r
+
+ def __repr__(self):
+ return "COutPoint(hash=%064x n=%i)" % (self.hash, self.n)
+
+
+class CTxIn(object):
+ def __init__(self, outpoint=None, scriptSig="", nSequence=0):
+ if outpoint is None:
+ self.prevout = COutPoint()
+ else:
+ self.prevout = outpoint
+ self.scriptSig = scriptSig
+ self.nSequence = nSequence
+
+ def deserialize(self, f):
+ self.prevout = COutPoint()
+ self.prevout.deserialize(f)
+ self.scriptSig = deser_string(f)
+ self.nSequence = struct.unpack("<I", f.read(4))[0]
+
+ def serialize(self):
+ r = ""
+ r += self.prevout.serialize()
+ r += ser_string(self.scriptSig)
+ r += struct.pack("<I", self.nSequence)
+ return r
+
+ def __repr__(self):
+ return "CTxIn(prevout=%s scriptSig=%s nSequence=%i)" \
+ % (repr(self.prevout), binascii.hexlify(self.scriptSig),
+ self.nSequence)
+
+
+class CTxOut(object):
+ def __init__(self, nValue=0, scriptPubKey=""):
+ self.nValue = nValue
+ self.scriptPubKey = scriptPubKey
+
+ def deserialize(self, f):
+ self.nValue = struct.unpack("<q", f.read(8))[0]
+ self.scriptPubKey = deser_string(f)
+
+ def serialize(self):
+ r = ""
+ 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))
+
+
+class CTransaction(object):
+ def __init__(self, tx=None):
+ if tx is None:
+ self.nVersion = 1
+ self.vin = []
+ self.vout = []
+ self.nLockTime = 0
+ self.sha256 = None
+ self.hash = None
+ else:
+ self.nVersion = tx.nVersion
+ self.vin = copy.deepcopy(tx.vin)
+ self.vout = copy.deepcopy(tx.vout)
+ self.nLockTime = tx.nLockTime
+ self.sha256 = None
+ self.hash = None
+
+ def deserialize(self, f):
+ self.nVersion = struct.unpack("<i", f.read(4))[0]
+ self.vin = deser_vector(f, CTxIn)
+ self.vout = deser_vector(f, CTxOut)
+ self.nLockTime = struct.unpack("<I", f.read(4))[0]
+ self.sha256 = None
+ self.hash = None
+
+ def serialize(self):
+ r = ""
+ r += struct.pack("<i", self.nVersion)
+ r += ser_vector(self.vin)
+ r += ser_vector(self.vout)
+ r += struct.pack("<I", self.nLockTime)
+ return r
+
+ def rehash(self):
+ self.sha256 = None
+ self.calc_sha256()
+
+ 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')
+
+ def is_valid(self):
+ self.calc_sha256()
+ for tout in self.vout:
+ if tout.nValue < 0 or tout.nValue > 21000000L * 100000000L:
+ return False
+ return True
+
+ def __repr__(self):
+ return "CTransaction(nVersion=%i vin=%s vout=%s nLockTime=%i)" \
+ % (self.nVersion, repr(self.vin), repr(self.vout), self.nLockTime)
+
+
+class CBlockHeader(object):
+ def __init__(self, header=None):
+ if header is None:
+ self.set_null()
+ else:
+ self.nVersion = header.nVersion
+ self.hashPrevBlock = header.hashPrevBlock
+ self.hashMerkleRoot = header.hashMerkleRoot
+ self.nTime = header.nTime
+ self.nBits = header.nBits
+ self.nNonce = header.nNonce
+ self.sha256 = header.sha256
+ self.hash = header.hash
+ self.calc_sha256()
+
+ def set_null(self):
+ self.nVersion = 1
+ self.hashPrevBlock = 0
+ self.hashMerkleRoot = 0
+ self.nTime = 0
+ self.nBits = 0
+ self.nNonce = 0
+ self.sha256 = None
+ self.hash = None
+
+ def deserialize(self, f):
+ self.nVersion = struct.unpack("<i", f.read(4))[0]
+ self.hashPrevBlock = deser_uint256(f)
+ self.hashMerkleRoot = deser_uint256(f)
+ self.nTime = struct.unpack("<I", f.read(4))[0]
+ self.nBits = struct.unpack("<I", f.read(4))[0]
+ self.nNonce = struct.unpack("<I", f.read(4))[0]
+ self.sha256 = None
+ self.hash = None
+
+ def serialize(self):
+ r = ""
+ r += struct.pack("<i", self.nVersion)
+ r += ser_uint256(self.hashPrevBlock)
+ r += ser_uint256(self.hashMerkleRoot)
+ r += struct.pack("<I", self.nTime)
+ r += struct.pack("<I", self.nBits)
+ r += struct.pack("<I", self.nNonce)
+ return r
+
+ def calc_sha256(self):
+ if self.sha256 is None:
+ r = ""
+ r += struct.pack("<i", self.nVersion)
+ r += ser_uint256(self.hashPrevBlock)
+ r += ser_uint256(self.hashMerkleRoot)
+ r += struct.pack("<I", self.nTime)
+ 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')
+
+ def rehash(self):
+ self.sha256 = None
+ self.calc_sha256()
+ return self.sha256
+
+ def __repr__(self):
+ return "CBlockHeader(nVersion=%i hashPrevBlock=%064x hashMerkleRoot=%064x nTime=%s nBits=%08x nNonce=%08x)" \
+ % (self.nVersion, self.hashPrevBlock, self.hashMerkleRoot,
+ time.ctime(self.nTime), self.nBits, self.nNonce)
+
+
+class CBlock(CBlockHeader):
+ def __init__(self, header=None):
+ super(CBlock, self).__init__(header)
+ self.vtx = []
+
+ def deserialize(self, f):
+ super(CBlock, self).deserialize(f)
+ self.vtx = deser_vector(f, CTransaction)
+
+ def serialize(self):
+ r = ""
+ r += super(CBlock, self).serialize()
+ r += ser_vector(self.vtx)
+ return r
+
+ def calc_merkle_root(self):
+ hashes = []
+ for tx in self.vtx:
+ tx.calc_sha256()
+ hashes.append(ser_uint256(tx.sha256))
+ while len(hashes) > 1:
+ newhashes = []
+ for i in xrange(0, len(hashes), 2):
+ i2 = min(i+1, len(hashes)-1)
+ newhashes.append(hash256(hashes[i] + hashes[i2]))
+ hashes = newhashes
+ return uint256_from_str(hashes[0])
+
+ def is_valid(self):
+ self.calc_sha256()
+ target = uint256_from_compact(self.nBits)
+ if self.sha256 > target:
+ return False
+ for tx in self.vtx:
+ if not tx.is_valid():
+ return False
+ if self.calc_merkle_root() != self.hashMerkleRoot:
+ return False
+ return True
+
+ def solve(self):
+ self.calc_sha256()
+ target = uint256_from_compact(self.nBits)
+ while self.sha256 > target:
+ self.nNonce += 1
+ self.rehash()
+
+ def __repr__(self):
+ return "CBlock(nVersion=%i hashPrevBlock=%064x hashMerkleRoot=%064x nTime=%s nBits=%08x nNonce=%08x vtx=%s)" \
+ % (self.nVersion, self.hashPrevBlock, self.hashMerkleRoot,
+ time.ctime(self.nTime), self.nBits, self.nNonce, repr(self.vtx))
+
+
+class CUnsignedAlert(object):
+ def __init__(self):
+ self.nVersion = 1
+ self.nRelayUntil = 0
+ self.nExpiration = 0
+ self.nID = 0
+ self.nCancel = 0
+ self.setCancel = []
+ self.nMinVer = 0
+ self.nMaxVer = 0
+ self.setSubVer = []
+ self.nPriority = 0
+ self.strComment = ""
+ self.strStatusBar = ""
+ self.strReserved = ""
+
+ def deserialize(self, f):
+ self.nVersion = struct.unpack("<i", f.read(4))[0]
+ self.nRelayUntil = struct.unpack("<q", f.read(8))[0]
+ self.nExpiration = struct.unpack("<q", f.read(8))[0]
+ self.nID = struct.unpack("<i", f.read(4))[0]
+ self.nCancel = struct.unpack("<i", f.read(4))[0]
+ self.setCancel = deser_int_vector(f)
+ self.nMinVer = struct.unpack("<i", f.read(4))[0]
+ self.nMaxVer = struct.unpack("<i", f.read(4))[0]
+ self.setSubVer = deser_string_vector(f)
+ self.nPriority = struct.unpack("<i", f.read(4))[0]
+ self.strComment = deser_string(f)
+ self.strStatusBar = deser_string(f)
+ self.strReserved = deser_string(f)
+
+ def serialize(self):
+ r = ""
+ r += struct.pack("<i", self.nVersion)
+ r += struct.pack("<q", self.nRelayUntil)
+ r += struct.pack("<q", self.nExpiration)
+ r += struct.pack("<i", self.nID)
+ r += struct.pack("<i", self.nCancel)
+ r += ser_int_vector(self.setCancel)
+ r += struct.pack("<i", self.nMinVer)
+ r += struct.pack("<i", self.nMaxVer)
+ r += ser_string_vector(self.setSubVer)
+ r += struct.pack("<i", self.nPriority)
+ r += ser_string(self.strComment)
+ r += ser_string(self.strStatusBar)
+ r += ser_string(self.strReserved)
+ return r
+
+ def __repr__(self):
+ return "CUnsignedAlert(nVersion %d, nRelayUntil %d, nExpiration %d, nID %d, nCancel %d, nMinVer %d, nMaxVer %d, nPriority %d, strComment %s, strStatusBar %s, strReserved %s)" \
+ % (self.nVersion, self.nRelayUntil, self.nExpiration, self.nID,
+ self.nCancel, self.nMinVer, self.nMaxVer, self.nPriority,
+ self.strComment, self.strStatusBar, self.strReserved)
+
+
+class CAlert(object):
+ def __init__(self):
+ self.vchMsg = ""
+ self.vchSig = ""
+
+ def deserialize(self, f):
+ self.vchMsg = deser_string(f)
+ self.vchSig = deser_string(f)
+
+ def serialize(self):
+ r = ""
+ r += ser_string(self.vchMsg)
+ r += ser_string(self.vchSig)
+ return r
+
+ def __repr__(self):
+ return "CAlert(vchMsg.sz %d, vchSig.sz %d)" \
+ % (len(self.vchMsg), len(self.vchSig))
+
+
+# Objects that correspond to messages on the wire
+class msg_version(object):
+ command = "version"
+
+ def __init__(self):
+ self.nVersion = MY_VERSION
+ self.nServices = 1
+ self.nTime = time.time()
+ self.addrTo = CAddress()
+ self.addrFrom = CAddress()
+ self.nNonce = random.getrandbits(64)
+ self.strSubVer = MY_SUBVERSION
+ self.nStartingHeight = -1
+
+ def deserialize(self, f):
+ self.nVersion = struct.unpack("<i", f.read(4))[0]
+ if self.nVersion == 10300:
+ self.nVersion = 300
+ self.nServices = struct.unpack("<Q", f.read(8))[0]
+ self.nTime = struct.unpack("<q", f.read(8))[0]
+ self.addrTo = CAddress()
+ self.addrTo.deserialize(f)
+ if self.nVersion >= 106:
+ self.addrFrom = CAddress()
+ self.addrFrom.deserialize(f)
+ self.nNonce = struct.unpack("<Q", f.read(8))[0]
+ self.strSubVer = deser_string(f)
+ if self.nVersion >= 209:
+ self.nStartingHeight = struct.unpack("<i", f.read(4))[0]
+ else:
+ self.nStartingHeight = None
+ else:
+ self.addrFrom = None
+ self.nNonce = None
+ self.strSubVer = None
+ self.nStartingHeight = None
+
+ def serialize(self):
+ r = ""
+ r += struct.pack("<i", self.nVersion)
+ r += struct.pack("<Q", self.nServices)
+ r += struct.pack("<q", self.nTime)
+ r += self.addrTo.serialize()
+ r += self.addrFrom.serialize()
+ r += struct.pack("<Q", self.nNonce)
+ r += ser_string(self.strSubVer)
+ r += struct.pack("<i", self.nStartingHeight)
+ return r
+
+ def __repr__(self):
+ return 'msg_version(nVersion=%i nServices=%i nTime=%s addrTo=%s addrFrom=%s nNonce=0x%016X strSubVer=%s nStartingHeight=%i)' \
+ % (self.nVersion, self.nServices, time.ctime(self.nTime),
+ repr(self.addrTo), repr(self.addrFrom), self.nNonce,
+ self.strSubVer, self.nStartingHeight)
+
+
+class msg_verack(object):
+ command = "verack"
+
+ def __init__(self):
+ pass
+
+ def deserialize(self, f):
+ pass
+
+ def serialize(self):
+ return ""
+
+ def __repr__(self):
+ return "msg_verack()"
+
+
+class msg_addr(object):
+ command = "addr"
+
+ def __init__(self):
+ self.addrs = []
+
+ def deserialize(self, f):
+ self.addrs = deser_vector(f, CAddress)
+
+ def serialize(self):
+ return ser_vector(self.addrs)
+
+ def __repr__(self):
+ return "msg_addr(addrs=%s)" % (repr(self.addrs))
+
+
+class msg_alert(object):
+ command = "alert"
+
+ def __init__(self):
+ self.alert = CAlert()
+
+ def deserialize(self, f):
+ self.alert = CAlert()
+ self.alert.deserialize(f)
+
+ def serialize(self):
+ r = ""
+ r += self.alert.serialize()
+ return r
+
+ def __repr__(self):
+ return "msg_alert(alert=%s)" % (repr(self.alert), )
+
+
+class msg_inv(object):
+ command = "inv"
+
+ def __init__(self, inv=None):
+ if inv is None:
+ self.inv = []
+ else:
+ self.inv = inv
+
+ def deserialize(self, f):
+ self.inv = deser_vector(f, CInv)
+
+ def serialize(self):
+ return ser_vector(self.inv)
+
+ def __repr__(self):
+ return "msg_inv(inv=%s)" % (repr(self.inv))
+
+
+class msg_getdata(object):
+ command = "getdata"
+
+ def __init__(self):
+ self.inv = []
+
+ def deserialize(self, f):
+ self.inv = deser_vector(f, CInv)
+
+ def serialize(self):
+ return ser_vector(self.inv)
+
+ def __repr__(self):
+ return "msg_getdata(inv=%s)" % (repr(self.inv))
+
+
+class msg_getblocks(object):
+ command = "getblocks"
+
+ def __init__(self):
+ self.locator = CBlockLocator()
+ self.hashstop = 0L
+
+ def deserialize(self, f):
+ self.locator = CBlockLocator()
+ self.locator.deserialize(f)
+ self.hashstop = deser_uint256(f)
+
+ def serialize(self):
+ r = ""
+ r += self.locator.serialize()
+ r += ser_uint256(self.hashstop)
+ return r
+
+ def __repr__(self):
+ return "msg_getblocks(locator=%s hashstop=%064x)" \
+ % (repr(self.locator), self.hashstop)
+
+
+class msg_tx(object):
+ command = "tx"
+
+ def __init__(self, tx=CTransaction()):
+ self.tx = tx
+
+ def deserialize(self, f):
+ self.tx.deserialize(f)
+
+ def serialize(self):
+ return self.tx.serialize()
+
+ def __repr__(self):
+ return "msg_tx(tx=%s)" % (repr(self.tx))
+
+
+class msg_block(object):
+ command = "block"
+
+ def __init__(self, block=None):
+ if block is None:
+ self.block = CBlock()
+ else:
+ self.block = block
+
+ def deserialize(self, f):
+ self.block.deserialize(f)
+
+ def serialize(self):
+ return self.block.serialize()
+
+ def __repr__(self):
+ return "msg_block(block=%s)" % (repr(self.block))
+
+
+class msg_getaddr(object):
+ command = "getaddr"
+
+ def __init__(self):
+ pass
+
+ def deserialize(self, f):
+ pass
+
+ def serialize(self):
+ return ""
+
+ def __repr__(self):
+ return "msg_getaddr()"
+
+
+class msg_ping_prebip31(object):
+ command = "ping"
+
+ def __init__(self):
+ pass
+
+ def deserialize(self, f):
+ pass
+
+ def serialize(self):
+ return ""
+
+ def __repr__(self):
+ return "msg_ping() (pre-bip31)"
+
+
+class msg_ping(object):
+ command = "ping"
+
+ def __init__(self, nonce=0L):
+ self.nonce = nonce
+
+ def deserialize(self, f):
+ self.nonce = struct.unpack("<Q", f.read(8))[0]
+
+ def serialize(self):
+ r = ""
+ r += struct.pack("<Q", self.nonce)
+ return r
+
+ def __repr__(self):
+ return "msg_ping(nonce=%08x)" % self.nonce
+
+
+class msg_pong(object):
+ command = "pong"
+
+ def __init__(self, nonce=0L):
+ self.nonce = nonce
+
+ def deserialize(self, f):
+ self.nonce = struct.unpack("<Q", f.read(8))[0]
+
+ def serialize(self):
+ r = ""
+ r += struct.pack("<Q", self.nonce)
+ return r
+
+ def __repr__(self):
+ return "msg_pong(nonce=%08x)" % self.nonce
+
+
+class msg_mempool(object):
+ command = "mempool"
+
+ def __init__(self):
+ pass
+
+ def deserialize(self, f):
+ pass
+
+ def serialize(self):
+ return ""
+
+ def __repr__(self):
+ return "msg_mempool()"
+
+
+# getheaders message has
+# number of entries
+# vector of hashes
+# hash_stop (hash of last desired block header, 0 to get as many as possible)
+class msg_getheaders(object):
+ command = "getheaders"
+
+ def __init__(self):
+ self.locator = CBlockLocator()
+ self.hashstop = 0L
+
+ def deserialize(self, f):
+ self.locator = CBlockLocator()
+ self.locator.deserialize(f)
+ self.hashstop = deser_uint256(f)
+
+ def serialize(self):
+ r = ""
+ r += self.locator.serialize()
+ r += ser_uint256(self.hashstop)
+ return r
+
+ def __repr__(self):
+ return "msg_getheaders(locator=%s, stop=%064x)" \
+ % (repr(self.locator), self.hashstop)
+
+
+# headers message has
+# <count> <vector of block headers>
+class msg_headers(object):
+ command = "headers"
+
+ def __init__(self):
+ self.headers = []
+
+ def deserialize(self, f):
+ # comment in bitcoind indicates these should be deserialized as blocks
+ blocks = deser_vector(f, CBlock)
+ for x in blocks:
+ self.headers.append(CBlockHeader(x))
+
+ def serialize(self):
+ blocks = [CBlock(x) for x in self.headers]
+ return ser_vector(blocks)
+
+ def __repr__(self):
+ return "msg_headers(headers=%s)" % repr(self.headers)
+
+
+class msg_reject(object):
+ command = "reject"
+
+ def __init__(self):
+ self.message = ""
+ self.code = ""
+ self.reason = ""
+ self.data = 0L
+
+ def deserialize(self, f):
+ 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"):
+ 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"):
+ r += ser_uint256(self.data)
+ return r
+
+ def __repr__(self):
+ return "msg_reject: %s %d %s [%064x]" \
+ % (self.message, self.code, self.reason, self.data)
+
+
+# This is what a callback should look like for NodeConn
+# Reimplement the on_* functions to provide handling for events
+class NodeConnCB(object):
+ def __init__(self):
+ # Acquire on all callbacks -- overkill for now since asyncore is
+ # single-threaded, but may be useful for synchronizing access to
+ # member variables in derived classes.
+ self.cbLock = Lock()
+ self.verack_received = False
+
+ # Derived classes should call this function once to set the message map
+ # which associates the derived classes' functions to incoming messages
+ def create_callback_map(self):
+ self.cbmap = {
+ "version": self.on_version,
+ "verack": self.on_verack,
+ "addr": self.on_addr,
+ "alert": self.on_alert,
+ "inv": self.on_inv,
+ "getdata": self.on_getdata,
+ "getblocks": self.on_getblocks,
+ "tx": self.on_tx,
+ "block": self.on_block,
+ "getaddr": self.on_getaddr,
+ "ping": self.on_ping,
+ "pong": self.on_pong,
+ "headers": self.on_headers,
+ "getheaders": self.on_getheaders,
+ "reject": self.on_reject,
+ "mempool": self.on_mempool
+ }
+
+ def deliver(self, conn, message):
+ with self.cbLock:
+ try:
+ self.cbmap[message.command](conn, message)
+ except:
+ print "ERROR delivering %s (%s)" % (repr(message),
+ sys.exc_info()[0])
+
+ def on_version(self, conn, message):
+ if message.nVersion >= 209:
+ conn.send_message(msg_verack())
+ conn.ver_send = min(MY_VERSION, message.nVersion)
+ if message.nVersion < 209:
+ conn.ver_recv = conn.ver_send
+
+ def on_verack(self, conn, message):
+ conn.ver_recv = conn.ver_send
+ self.verack_received = True
+
+ def on_inv(self, conn, message):
+ want = msg_getdata()
+ for i in message.inv:
+ if i.type != 0:
+ want.inv.append(i)
+ if len(want.inv):
+ conn.send_message(want)
+
+ def on_addr(self, conn, message): pass
+ def on_alert(self, conn, message): pass
+ def on_getdata(self, conn, message): pass
+ def on_getblocks(self, conn, message): pass
+ def on_tx(self, conn, message): pass
+ def on_block(self, conn, message): pass
+ def on_getaddr(self, conn, message): pass
+ def on_headers(self, conn, message): pass
+ def on_getheaders(self, conn, message): pass
+ def on_ping(self, conn, message):
+ if conn.ver_send > BIP0031_VERSION:
+ conn.send_message(msg_pong(message.nonce))
+ def on_reject(self, conn, message): pass
+ def on_close(self, conn): pass
+ def on_mempool(self, conn): pass
+ def on_pong(self, conn, message): pass
+
+
+# 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
+ }
+ MAGIC_BYTES = {
+ "mainnet": "\xf9\xbe\xb4\xd9", # mainnet
+ "testnet3": "\x0b\x11\x09\x07", # testnet3
+ "regtest": "\xfa\xbf\xb5\xda" # regtest
+ }
+
+ def __init__(self, dstaddr, dstport, rpc, callback, net="regtest"):
+ asyncore.dispatcher.__init__(self)
+ self.log = logging.getLogger("NodeConn(%s:%d)" % (dstaddr, dstport))
+ self.dstaddr = dstaddr
+ self.dstport = dstport
+ self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
+ self.sendbuf = ""
+ self.recvbuf = ""
+ self.ver_send = 209
+ self.ver_recv = 209
+ self.last_sent = 0
+ self.state = "connecting"
+ self.network = net
+ self.cb = callback
+ self.sendbufLock = Lock() # for protecting the sendbuffer
+ self.disconnect = False
+
+ # stuff version msg into sendbuf
+ vt = msg_version()
+ vt.addrTo.ip = self.dstaddr
+ vt.addrTo.port = self.dstport
+ vt.addrFrom.ip = "0.0.0.0"
+ vt.addrFrom.port = 0
+ self.send_message(vt, True)
+ print 'MiniNode: Connecting to Bitcoin Node IP # ' + dstaddr + ':' \
+ + str(dstport)
+
+ try:
+ self.connect((dstaddr, dstport))
+ except:
+ self.handle_close()
+ self.rpc = rpc
+
+ def show_debug_msg(self, msg):
+ self.log.debug(msg)
+
+ def handle_connect(self):
+ self.show_debug_msg("MiniNode: Connected & Listening: \n")
+ self.state = "connected"
+
+ def handle_close(self):
+ self.show_debug_msg("MiniNode: Closing Connection to %s:%d... "
+ % (self.dstaddr, self.dstport))
+ self.state = "closed"
+ self.recvbuf = ""
+ self.sendbuf = ""
+ try:
+ self.close()
+ except:
+ pass
+ self.cb.on_close(self)
+
+ def handle_read(self):
+ try:
+ t = self.recv(8192)
+ if len(t) > 0:
+ self.recvbuf += t
+ self.got_data()
+ except:
+ pass
+
+ def readable(self):
+ return True
+
+ def writable(self):
+ if self.disconnect:
+ self.handle_close()
+ return False
+ else:
+ self.sendbufLock.acquire()
+ length = len(self.sendbuf)
+ self.sendbufLock.release()
+ return (length > 0)
+
+ def handle_write(self):
+ self.sendbufLock.acquire()
+ try:
+ sent = self.send(self.sendbuf)
+ except:
+ self.handle_close()
+ return
+ self.sendbuf = self.sendbuf[sent:]
+ self.sendbufLock.release()
+
+ 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:
+ 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))
+
+ def send_message(self, message, pushbuf=False):
+ if self.state != "connected" and not pushbuf:
+ return
+ self.sendbufLock.acquire()
+ self.show_debug_msg("Send %s" % repr(message))
+ command = message.command
+ data = message.serialize()
+ tmsg = self.MAGIC_BYTES[self.network]
+ tmsg += command
+ tmsg += "\x00" * (12 - len(command))
+ tmsg += struct.pack("<I", len(data))
+ if self.ver_send >= 209:
+ th = sha256(data)
+ h = sha256(th)
+ tmsg += h[:4]
+ tmsg += data
+ self.sendbuf += tmsg
+ self.last_sent = time.time()
+ self.sendbufLock.release()
+
+ def got_message(self, message):
+ if message.command == "version":
+ if message.nVersion <= BIP0031_VERSION:
+ self.messagemap['ping'] = msg_ping_prebip31
+ if self.last_sent + 30 * 60 < time.time():
+ self.send_message(self.messagemap['ping']())
+ self.show_debug_msg("Recv %s" % repr(message))
+ self.cb.deliver(self, message)
+
+ def disconnect_node(self):
+ self.disconnect = True
+ self.send_message(self.messagemap['ping']())
+
+
+class NetworkThread(Thread):
+ def run(self):
+ asyncore.loop(0.1, True)
+
+
+# An exception we can raise if we detect a potential disconnect
+# (p2p or rpc) before the test is complete
+class EarlyDisconnectError(Exception):
+ def __init__(self, value):
+ self.value = value
+
+ def __str__(self):
+ return repr(self.value)
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-14 07:50:10 +0000