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init commit of 24.0.1 custom signet image

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This commit is contained in:
Richard Safier
2023-03-24 14:18:35 -04:00
parent 533595d645
commit f2b9f08fdc
37 changed files with 9789 additions and 2 deletions
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65
Dockerfile Normal file
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FROM debian:buster-slim as builder
ARG BITCOIN_VERSION=${BITCOIN_VERSION:-24.0.1}
ARG TRIPLET=${TRIPLET:-"x86_64-linux-gnu"}
RUN apt-get update && \
apt-get install -qq --no-install-recommends ca-certificates dirmngr gosu wget libc6 procps python3
WORKDIR /tmp
# install bitcoin binaries
RUN BITCOIN_URL="https://bitcoincore.org/bin/bitcoin-core-${BITCOIN_VERSION}/bitcoin-${BITCOIN_VERSION}-${TRIPLET}.tar.gz" && \
BITCOIN_FILE="bitcoin-${BITCOIN_VERSION}-${TRIPLET}.tar.gz" && \
wget -qO "${BITCOIN_FILE}" "${BITCOIN_URL}" && \
mkdir -p bin && \
tar -xzvf "${BITCOIN_FILE}" -C /tmp/bin --strip-components=2 "bitcoin-${BITCOIN_VERSION}/bin/bitcoin-cli" "bitcoin-${BITCOIN_VERSION}/bin/bitcoind" "bitcoin-${BITCOIN_VERSION}/bin/bitcoin-wallet" "bitcoin-${BITCOIN_VERSION}/bin/bitcoin-util"
FROM debian:buster-slim as custom-signet-bitcoin
LABEL org.opencontainers.image.authors="NBD"
LABEL org.opencontainers.image.licenses=MIT
LABEL org.opencontainers.image.source="https://github.com/nbd-wtf/bitcoin_signet"
ENV BITCOIN_DIR /root/.bitcoin
ENV NBITS=${NBITS}
ENV SIGNETCHALLENGE=${SIGNETCHALLENGE}
ENV PRIVKEY=${PRIVKEY}
ENV RPCUSER=${RPCUSER:-"bitcoin"}
ENV RPCPASSWORD=${RPCPASSWORD:-"bitcoin"}
ENV COOKIEFILE=${COOKIEFILE:-"false"}
ENV ONIONPROXY=${ONIONPROXY:-""}
ENV TORPASSWORD=${TORPASSWORD:-""}
ENV TORCONTROL=${TORCONTROL:-""}
ENV I2PSAM=${I2PSAM:-""}
ENV UACOMMENT=${UACOMMENT:-"CustomSignet"}
ENV ZMQPUBRAWBLOCK=${ZMQPUBRAWBLOCK:-"tcp://0.0.0.0:28332"}
ENV ZMQPUBRAWTX=${ZMQPUBRAWTX:-"tcp://0.0.0.0:28333"}
ENV ZMQPUBHASHBLOCK=${ZMQPUBHASHBLOCK:-"tcp://0.0.0.0:28334"}
ENV RPCBIND=${RPCBIND:-"0.0.0.0:38332"}
ENV RPCALLOWIP=${RPCALLOWIP:-"0.0.0.0/0"}
ENV WHITELIST=${WHITELIST:-"0.0.0.0/0"}
ENV ADDNODE=${ADDNODE:-""}
ENV BLOCKPRODUCTIONDELAY=${BLOCKPRODUCTIONDELAY:-""}
ENV MINERENABLED=${MINERENABLED:-"1"}
ENV MINETO=${MINETO:-""}
ENV EXTERNAL_IP=${EXTERNAL_IP:-""}
VOLUME $BITCOIN_DIR
EXPOSE 28332 28333 28334 38332 38333 38334
RUN apt-get update && \
apt-get install -qq --no-install-recommends procps python3 python3-pip jq && \
apt-get clean
COPY --from=builder "/tmp/bin" /usr/local/bin
COPY docker-entrypoint.sh /usr/local/bin/entrypoint.sh
COPY miner_imports /usr/local/bin
COPY miner /usr/local/bin/miner
COPY *.sh /usr/local/bin/
COPY rpcauth.py /usr/local/bin/rpcauth.py
RUN pip3 install setuptools
ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
CMD ["run.sh"]

35
README.md
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# bitcoin_signet
Generic Signet Dockerfiles
# Bitcoin Signet Docker Image
## ENV Variables
* `BLOCKPRODUCTIONDELAY` - default sleep period between mining blocks (**mining mode only**)
* if ~/.bitcoin/BLOCKPRODUCTIONDELAY.txt is present will use this value, allowing the delay to be dynamically changed.
* `MINERENABLED` - flag for enabling mining chain
* `NBITS` - sets min difficulty in mining (**mining mode only**)
* `PRIVKEY` - private key of signet signer (**mining mode only**)
* if `MINERENABLED=1` and not provided will generate this
* `MINETO` - mine to a static address, if not provided will make new address for each block (**mining mode only**)
* `SIGNETCHALLENGE` - sets the valid block producer for this signet
* if `MINERENABLED=1` and not provided will generate this, if provded PRIVKEY also must be populated
* Requied for client-mode
*
* `RPCUSER` - bitcoind RPC User
* `RPCPASSWORD` - bitcoind RPC password
*
* `ONIONPROXY` - tor SOCK5 endpoint
* `TORPASSWORD` - tor control port password
* `TORCONTROL` - tor control port endpoint
* `I2PSAM` - I2P control endpoint
* `UACOMMENT` - UA Comment which would show on bitcoin-cli -netinfo printout
*
* `ZMQPUBRAWBLOCK` - bitcoind setting
* `ZMQPUBRAWTX` - bitcoind setting
* `ZMQPUBHASHBLOCK` - bitcoind setting
*
* `RPCBIND` - bitcoind setting
* `RPCALLOWIP` - bitcoind setting
* `WHITELIST` - bitcoind setting
* `ADDNODE` - add seeding node location, comma-separate for multiple nodes (needed for client-mode)
* `EXTERNAL_IP` - add public IP/onion endpoint information, comma-seperated for multiple IPs.

28
docker-entrypoint.sh Executable file
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#!/bin/bash
set -eo pipefail
shutdown_gracefully(){
echo "Container is shutting down, lets make sure bitcoind flushes the db."
bitcoin-cli stop
sleep 5
}
trap shutdown_gracefully SIGTERM SIGHUP SIGQUIT SIGINT
mkdir -p "${BITCOIN_DIR}"
# check if this is first run if so run init if config
if [[ ! -f "${BITCOIN_DIR}/install_done" ]]; then
echo "install_done file not found, running install.sh."
install.sh #this is config based on args passed into mining node or peer.
else
echo "install_done file exists, skipping setup process."
echo "rewrite bitcoin.conf"
gen-bitcoind-conf.sh >~/.bitcoin/bitcoin.conf
fi
$@ &
echo "Infinate loop"
while true
do
tail -f /dev/null & wait ${!}
done

63
gen-bitcoind-conf.sh Executable file
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SIGNETCHALLENGE=${SIGNETCHALLENGE:-$(cat ~/.bitcoin/SIGNETCHALLENGE.txt)}
RPCAUTH=$(/usr/local/bin/rpcauth.py $RPCUSER $RPCPASSWORD | tr -d '\n')
echo "signet=1"
if [[ "$COOKIEFILE" == "true" ]]; then
echo "rpccookiefile=/root/.bitcoin/.cookie
rpcauth=$RPCAUTH"
else
echo "rpcauth=$RPCAUTH
rpcuser=$RPCUSER
rpcpassword=$RPCPASSWORD"
fi
echo "txindex=1
blockfilterindex=1
peerblockfilters=1
coinstatsindex=1
dnsseed=0
persistmempool=1
uacomment=$UACOMMENT"
if [[ "$EXTERNAL_IP" != "" ]]; then
echo $EXTERNAL_IP | tr ',' '\n' | while read ip; do
echo "externalip=$ip"
done
fi
echo "[signet]
daemon=1
listen=1
server=1
discover=1
signetchallenge=$SIGNETCHALLENGE
zmqpubrawblock=$ZMQPUBRAWBLOCK
zmqpubrawtx=$ZMQPUBRAWTX
zmqpubhashblock=$ZMQPUBHASHBLOCK
rpcbind=$RPCBIND
rpcallowip=$RPCALLOWIP
whitelist=$WHITELIST
fallbackfee=0.0002"
if [[ "$ADDNODE" != "" ]]; then
echo $ADDNODE | tr ',' '\n' | while read node; do
echo "addnode=$node"
done
fi
if [[ "$I2PSAM" != "" ]]; then
echo "i2psam=$I2PSAM"
fi
if [[ "$ONIONPROXY" != "" ]]; then
echo "onion=$ONIONPROXY" # unless have static IP won't resolve the control port as domain
fi
if [[ "$TORPASSWORD" != "" ]]; then
echo "torpassword=$TORPASSWORD"
fi
if [[ "$TORCONTROL" != "" ]]; then
echo "torcontrol=$TORCONTROL"
fi

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gen-signet-keys.sh Executable file
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DATADIR=${DATADIR:-"regtest-temp"}
BITCOINCLI=${BITCOINCLI:-"bitcoin-cli -regtest -datadir=$DATADIR "}
BITCOIND=${BITCOIND:-"bitcoind -datadir=$DATADIR -regtest -daemon "}
write_files() {
# echo "ADDR=" $ADDR
echo "PRIVKEY=" $PRIVKEY
# echo "PUBKEY=" $PUBKEY
echo "SIGNETCHALLENGE=" $SIGNETCHALLENGE
# echo $ADDR > ~/.bitcoin/ADDR.txt
echo $PRIVKEY >~/.bitcoin/PRIVKEY.txt
# echo $PUBKEY > ~/.bitcoin/PUBKEY.txt
echo $SIGNETCHALLENGE >~/.bitcoin/SIGNETCHALLENGE.txt
}
if [[ "$MINERENABLED" == "1" && ("$SIGNETCHALLENGE" == "" || "$PRIVKEY" == "") ]]; then
echo "Generating new signetchallange and privkey."
#clean if exists
rm -rf $DATADIR
#make it fresh
mkdir $DATADIR
#kill any daemon running stuff
pkill bitcoind
#minimal config file (hardcode bitcoin:bitcoin for rpc)
echo "
regtest=1
server=1
rpcauth=bitcoin:c8c8b9740a470454255b7a38d4f38a52\$e8530d1c739a3bb0ec6e9513290def11651afbfd2b979f38c16ec2cf76cf348a
rpcuser=bitcoin
rpcpassword=bitcoin
" >$DATADIR/bitcoin.conf
#start daemon
$BITCOIND -wallet="temp"
#wait a bit for startup
sleep 5s
#create wallet
$BITCOINCLI createwallet "temp"
#export future signet seeding key data
ADDR=$($BITCOINCLI getnewaddress)
PRIVKEY=$($BITCOINCLI dumpprivkey $ADDR)
PUBKEY=$($BITCOINCLI getaddressinfo $ADDR | jq .pubkey | tr -d '""')
#don't need regtest anymore
$BITCOINCLI stop
SIGNETCHALLENGE=$(echo '5121'$PUBKEY'51ae')
#cleanup
rm -rf $DATADIR
else
echo "Imported signetchallange and privkey being used."
fi
write_files

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install.sh Executable file
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echo "Generate or import keyset"
gen-signet-keys.sh
echo "Generate bitcoind configuration"
gen-bitcoind-conf.sh >~/.bitcoin/bitcoin.conf
echo "Setup Signet"
setup-signet.sh
if [[ "$MINE_GENESIS" == "1" ]]; then
echo "Mine Genesis Block"
mine-genesis.sh
fi
touch ~/.bitcoin/install_done

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mine-genesis.sh Executable file
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#!/bin/bash
ADDR=${ADDR:-$(bitcoin-cli getnewaddress)}
NBITS=${NBITS:-"1e0377ae"} #minimum difficulty in signet
miner --cli="bitcoin-cli" generate --address=$ADDR --grind-cmd="bitcoin-util grind" --nbits=$NBITS --set-block-time=$(date +%s)

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mine.sh Executable file
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#!/bin/bash
NBITS=${NBITS:-"1e0377ae"} #minimum difficulty in signet
while true; do
ADDR=${MINETO:-$(bitcoin-cli getnewaddress)}
if [[ -f "${BITCOIN_DIR}/BLOCKPRODUCTIONDELAY.txt" ]]; then
BLOCKPRODUCTIONDELAY_OVERRIDE=$(cat ~/.bitcoin/BLOCKPRODUCTIONDELAY.txt)
echo "Delay OVERRIDE before next block" $BLOCKPRODUCTIONDELAY_OVERRIDE "seconds."
sleep $BLOCKPRODUCTIONDELAY_OVERRIDE
else
BLOCKPRODUCTIONDELAY=${BLOCKPRODUCTIONDELAY:="0"}
if [[ BLOCKPRODUCTIONDELAY -gt 0 ]]; then
echo "Delay before next block" $BLOCKPRODUCTIONDELAY "seconds."
sleep $BLOCKPRODUCTIONDELAY
fi
fi
echo "Mine To:" $ADDR
miner --cli="bitcoin-cli" generate --grind-cmd="bitcoin-util grind" --address=$ADDR --nbits=$NBITS --set-block-time=$(date +%s)
done

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miner Executable file
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#!/usr/bin/env python3
# Copyright (c) 2020 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
# Modified for quick blocks and run in leaner docker container
import argparse
import base64
import json
import logging
import math
import os
import re
import struct
import sys
import time
import subprocess
from io import BytesIO
PATH_BASE_CONTRIB_SIGNET = os.path.abspath(os.path.dirname(os.path.realpath(__file__)))
PATH_BASE_TEST_FUNCTIONAL = os.path.abspath(os.path.join(PATH_BASE_CONTRIB_SIGNET, "miner_imports"))
sys.path.insert(0, PATH_BASE_TEST_FUNCTIONAL)
from test_framework.blocktools import WITNESS_COMMITMENT_HEADER, script_BIP34_coinbase_height # noqa: E402
from test_framework.messages import CBlock, CBlockHeader, COutPoint, CTransaction, CTxIn, CTxInWitness, CTxOut, from_hex, deser_string, hash256, ser_compact_size, ser_string, ser_uint256, tx_from_hex, uint256_from_str # noqa: E402
from test_framework.script import CScriptOp # noqa: E402
logging.basicConfig(
format='%(asctime)s %(levelname)s %(message)s',
level=logging.INFO,
datefmt='%Y-%m-%d %H:%M:%S')
SIGNET_HEADER = b"\xec\xc7\xda\xa2"
PSBT_SIGNET_BLOCK = b"\xfc\x06signetb" # proprietary PSBT global field holding the block being signed
RE_MULTIMINER = re.compile("^(\d+)(-(\d+))?/(\d+)$")
# #### some helpers that could go into test_framework
# like from_hex, but without the hex part
def FromBinary(cls, stream):
"""deserialize a binary stream (or bytes object) into an object"""
# handle bytes object by turning it into a stream
was_bytes = isinstance(stream, bytes)
if was_bytes:
stream = BytesIO(stream)
obj = cls()
obj.deserialize(stream)
if was_bytes:
assert len(stream.read()) == 0
return obj
class PSBTMap:
"""Class for serializing and deserializing PSBT maps"""
def __init__(self, map=None):
self.map = map if map is not None else {}
def deserialize(self, f):
m = {}
while True:
k = deser_string(f)
if len(k) == 0:
break
v = deser_string(f)
if len(k) == 1:
k = k[0]
assert k not in m
m[k] = v
self.map = m
def serialize(self):
m = b""
for k,v in self.map.items():
if isinstance(k, int) and 0 <= k and k <= 255:
k = bytes([k])
m += ser_compact_size(len(k)) + k
m += ser_compact_size(len(v)) + v
m += b"\x00"
return m
class PSBT:
"""Class for serializing and deserializing PSBTs"""
def __init__(self):
self.g = PSBTMap()
self.i = []
self.o = []
self.tx = None
def deserialize(self, f):
assert f.read(5) == b"psbt\xff"
self.g = FromBinary(PSBTMap, f)
assert 0 in self.g.map
self.tx = FromBinary(CTransaction, self.g.map[0])
self.i = [FromBinary(PSBTMap, f) for _ in self.tx.vin]
self.o = [FromBinary(PSBTMap, f) for _ in self.tx.vout]
return self
def serialize(self):
assert isinstance(self.g, PSBTMap)
assert isinstance(self.i, list) and all(isinstance(x, PSBTMap) for x in self.i)
assert isinstance(self.o, list) and all(isinstance(x, PSBTMap) for x in self.o)
assert 0 in self.g.map
tx = FromBinary(CTransaction, self.g.map[0])
assert len(tx.vin) == len(self.i)
assert len(tx.vout) == len(self.o)
psbt = [x.serialize() for x in [self.g] + self.i + self.o]
return b"psbt\xff" + b"".join(psbt)
def to_base64(self):
return base64.b64encode(self.serialize()).decode("utf8")
@classmethod
def from_base64(cls, b64psbt):
return FromBinary(cls, base64.b64decode(b64psbt))
# #####
def create_coinbase(height, value, spk):
cb = CTransaction()
cb.vin = [CTxIn(COutPoint(0, 0xffffffff), script_BIP34_coinbase_height(height), 0xffffffff)]
cb.vout = [CTxOut(value, spk)]
return cb
def get_witness_script(witness_root, witness_nonce):
commitment = uint256_from_str(hash256(ser_uint256(witness_root) + ser_uint256(witness_nonce)))
return b"\x6a" + CScriptOp.encode_op_pushdata(WITNESS_COMMITMENT_HEADER + ser_uint256(commitment))
def signet_txs(block, challenge):
# assumes signet solution has not been added yet so does not need
# to be removed
txs = block.vtx[:]
txs[0] = CTransaction(txs[0])
txs[0].vout[-1].scriptPubKey += CScriptOp.encode_op_pushdata(SIGNET_HEADER)
hashes = []
for tx in txs:
tx.rehash()
hashes.append(ser_uint256(tx.sha256))
mroot = block.get_merkle_root(hashes)
sd = b""
sd += struct.pack("<i", block.nVersion)
sd += ser_uint256(block.hashPrevBlock)
sd += ser_uint256(mroot)
sd += struct.pack("<I", block.nTime)
to_spend = CTransaction()
to_spend.nVersion = 0
to_spend.nLockTime = 0
to_spend.vin = [CTxIn(COutPoint(0, 0xFFFFFFFF), b"\x00" + CScriptOp.encode_op_pushdata(sd), 0)]
to_spend.vout = [CTxOut(0, challenge)]
to_spend.rehash()
spend = CTransaction()
spend.nVersion = 0
spend.nLockTime = 0
spend.vin = [CTxIn(COutPoint(to_spend.sha256, 0), b"", 0)]
spend.vout = [CTxOut(0, b"\x6a")]
return spend, to_spend
def do_createpsbt(block, signme, spendme):
psbt = PSBT()
psbt.g = PSBTMap( {0: signme.serialize(),
PSBT_SIGNET_BLOCK: block.serialize()
} )
psbt.i = [ PSBTMap( {0: spendme.serialize(),
3: bytes([1,0,0,0])})
]
psbt.o = [ PSBTMap() ]
return psbt.to_base64()
def do_decode_psbt(b64psbt):
psbt = PSBT.from_base64(b64psbt)
assert len(psbt.tx.vin) == 1
assert len(psbt.tx.vout) == 1
assert PSBT_SIGNET_BLOCK in psbt.g.map
scriptSig = psbt.i[0].map.get(7, b"")
scriptWitness = psbt.i[0].map.get(8, b"\x00")
return FromBinary(CBlock, psbt.g.map[PSBT_SIGNET_BLOCK]), ser_string(scriptSig) + scriptWitness
def finish_block(block, signet_solution, grind_cmd):
block.vtx[0].vout[-1].scriptPubKey += CScriptOp.encode_op_pushdata(SIGNET_HEADER + signet_solution)
block.vtx[0].rehash()
block.hashMerkleRoot = block.calc_merkle_root()
if grind_cmd is None:
block.solve()
else:
headhex = CBlockHeader.serialize(block).hex()
cmd = grind_cmd.split(" ") + [headhex]
newheadhex = subprocess.run(cmd, stdout=subprocess.PIPE, input=b"", check=True).stdout.strip()
newhead = from_hex(CBlockHeader(), newheadhex.decode('utf8'))
block.nNonce = newhead.nNonce
block.rehash()
return block
def generate_psbt(tmpl, reward_spk, *, blocktime=None):
signet_spk = tmpl["signet_challenge"]
signet_spk_bin = bytes.fromhex(signet_spk)
cbtx = create_coinbase(height=tmpl["height"], value=tmpl["coinbasevalue"], spk=reward_spk)
cbtx.vin[0].nSequence = 2**32-2
cbtx.rehash()
block = CBlock()
block.nVersion = tmpl["version"]
block.hashPrevBlock = int(tmpl["previousblockhash"], 16)
block.nTime = tmpl["curtime"] if blocktime is None else blocktime
if block.nTime < tmpl["mintime"]:
block.nTime = tmpl["mintime"]
block.nBits = int(tmpl["bits"], 16)
block.nNonce = 0
block.vtx = [cbtx] + [tx_from_hex(t["data"]) for t in tmpl["transactions"]]
witnonce = 0
witroot = block.calc_witness_merkle_root()
cbwit = CTxInWitness()
cbwit.scriptWitness.stack = [ser_uint256(witnonce)]
block.vtx[0].wit.vtxinwit = [cbwit]
block.vtx[0].vout.append(CTxOut(0, get_witness_script(witroot, witnonce)))
signme, spendme = signet_txs(block, signet_spk_bin)
return do_createpsbt(block, signme, spendme)
def get_reward_address(args, height):
if args.address is not None:
return args.address
if '*' not in args.descriptor:
addr = json.loads(args.bcli("deriveaddresses", args.descriptor))[0]
args.address = addr
return addr
remove = [k for k in args.derived_addresses.keys() if k+20 <= height]
for k in remove:
del args.derived_addresses[k]
addr = args.derived_addresses.get(height, None)
if addr is None:
addrs = json.loads(args.bcli("deriveaddresses", args.descriptor, "[%d,%d]" % (height, height+20)))
addr = addrs[0]
for k, a in enumerate(addrs):
args.derived_addresses[height+k] = a
return addr
def get_reward_addr_spk(args, height):
assert args.address is not None or args.descriptor is not None
if hasattr(args, "reward_spk"):
return args.address, args.reward_spk
reward_addr = get_reward_address(args, height)
reward_spk = bytes.fromhex(json.loads(args.bcli("getaddressinfo", reward_addr))["scriptPubKey"])
if args.address is not None:
# will always be the same, so cache
args.reward_spk = reward_spk
return reward_addr, reward_spk
def do_genpsbt(args):
tmpl = json.load(sys.stdin)
_, reward_spk = get_reward_addr_spk(args, tmpl["height"])
psbt = generate_psbt(tmpl, reward_spk)
print(psbt)
def do_solvepsbt(args):
block, signet_solution = do_decode_psbt(sys.stdin.read())
block = finish_block(block, signet_solution, args.grind_cmd)
print(block.serialize().hex())
def nbits_to_target(nbits):
shift = (nbits >> 24) & 0xff
return (nbits & 0x00ffffff) * 2**(8*(shift - 3))
def target_to_nbits(target):
tstr = "{0:x}".format(target)
if len(tstr) < 6:
tstr = ("000000"+tstr)[-6:]
if len(tstr) % 2 != 0:
tstr = "0" + tstr
if int(tstr[0],16) >= 0x8:
# avoid "negative"
tstr = "00" + tstr
fix = int(tstr[:6], 16)
sz = len(tstr)//2
if tstr[6:] != "0"*(sz*2-6):
fix += 1
return int("%02x%06x" % (sz,fix), 16)
def seconds_to_hms(s):
if s == 0:
return "0s"
neg = (s < 0)
if neg:
s = -s
out = ""
if s % 60 > 0:
out = "%ds" % (s % 60)
s //= 60
if s % 60 > 0:
out = "%dm%s" % (s % 60, out)
s //= 60
if s > 0:
out = "%dh%s" % (s, out)
if neg:
out = "-" + out
return out
def next_block_delta(last_nbits, last_hash, ultimate_target, do_poisson):
this_interval = 0.000001
return this_interval
def next_block_is_mine(last_hash, my_blocks):
det_rand = int(last_hash[-16:-8], 16)
return my_blocks[0] <= (det_rand % my_blocks[2]) < my_blocks[1]
def do_generate(args):
if args.max_blocks is not None:
if args.ongoing:
logging.error("Cannot specify both --ongoing and --max-blocks")
return 1
if args.max_blocks < 1:
logging.error("N must be a positive integer")
return 1
max_blocks = args.max_blocks
elif args.ongoing:
max_blocks = None
else:
max_blocks = 1
if args.set_block_time is not None and max_blocks != 1:
logging.error("Cannot specify --ongoing or --max-blocks > 1 when using --set-block-time")
return 1
if args.set_block_time is not None and args.set_block_time < 0:
args.set_block_time = time.time()
logging.info("Treating negative block time as current time (%d)" % (args.set_block_time))
if args.min_nbits:
if args.nbits is not None:
logging.error("Cannot specify --nbits and --min-nbits")
return 1
args.nbits = "1e0377ae"
logging.info("Using nbits=%s" % (args.nbits))
if args.set_block_time is None:
if args.nbits is None or len(args.nbits) != 8:
logging.error("Must specify --nbits (use calibrate command to determine value)")
return 1
if args.multiminer is None:
my_blocks = (0,1,1)
else:
if not args.ongoing:
logging.error("Cannot specify --multiminer without --ongoing")
return 1
m = RE_MULTIMINER.match(args.multiminer)
if m is None:
logging.error("--multiminer argument must be k/m or j-k/m")
return 1
start,_,stop,total = m.groups()
if stop is None:
stop = start
start, stop, total = map(int, (start, stop, total))
if stop < start or start <= 0 or total < stop or total == 0:
logging.error("Inconsistent values for --multiminer")
return 1
my_blocks = (start-1, stop, total)
ultimate_target = nbits_to_target(int(args.nbits,16))
mined_blocks = 0
bestheader = {"hash": None}
lastheader = None
while max_blocks is None or mined_blocks < max_blocks:
# current status?
bci = json.loads(args.bcli("getblockchaininfo"))
if bestheader["hash"] != bci["bestblockhash"]:
bestheader = json.loads(args.bcli("getblockheader", bci["bestblockhash"]))
if lastheader is None:
lastheader = bestheader["hash"]
elif bestheader["hash"] != lastheader:
next_delta = next_block_delta(int(bestheader["bits"], 16), bestheader["hash"], ultimate_target, args.poisson)
next_delta += bestheader["time"] - time.time()
next_is_mine = next_block_is_mine(bestheader["hash"], my_blocks)
logging.info("Received new block at height %d; next in %s (%s)", bestheader["height"], seconds_to_hms(next_delta), ("mine" if next_is_mine else "backup"))
lastheader = bestheader["hash"]
# when is the next block due to be mined?
now = time.time()
if args.set_block_time is not None:
logging.debug("Setting start time to %d", args.set_block_time)
mine_time = args.set_block_time
action_time = now
is_mine = True
elif bestheader["height"] == 0:
time_delta = next_block_delta(int(bestheader["bits"], 16), bci["bestblockhash"], ultimate_target, args.poisson)
time_delta *= 100 # 100 blocks
logging.info("Backdating time for first block to %d minutes ago" % (time_delta/60))
mine_time = now - time_delta
action_time = now
is_mine = True
else:
time_delta = next_block_delta(int(bestheader["bits"], 16), bci["bestblockhash"], ultimate_target, args.poisson)
mine_time = bestheader["time"] + time_delta
is_mine = next_block_is_mine(bci["bestblockhash"], my_blocks)
action_time = mine_time
if not is_mine:
action_time += args.backup_delay
if args.standby_delay > 0:
action_time += args.standby_delay
elif mined_blocks == 0:
# for non-standby, always mine immediately on startup,
# even if the next block shouldn't be ours
action_time = now
# don't want fractional times so round down
mine_time = int(mine_time)
action_time = int(action_time)
# can't mine a block 2h in the future; 1h55m for some safety
action_time = max(action_time, mine_time - 6900)
# ready to go? otherwise sleep and check for new block
if now < action_time:
sleep_for = min(action_time - now, 60)
if mine_time < now:
# someone else might have mined the block,
# so check frequently, so we don't end up late
# mining the next block if it's ours
sleep_for = min(20, sleep_for)
minestr = "mine" if is_mine else "backup"
logging.debug("Sleeping for %s, next block due in %s (%s)" % (seconds_to_hms(sleep_for), seconds_to_hms(mine_time - now), minestr))
time.sleep(sleep_for)
continue
# gbt
tmpl = json.loads(args.bcli("getblocktemplate", '{"rules":["signet","segwit"]}'))
if tmpl["previousblockhash"] != bci["bestblockhash"]:
logging.warning("GBT based off unexpected block (%s not %s), retrying", tmpl["previousblockhash"], bci["bestblockhash"])
time.sleep(1)
continue
logging.debug("GBT template: %s", tmpl)
if tmpl["mintime"] > mine_time:
logging.info("Updating block time from %d to %d", mine_time, tmpl["mintime"])
mine_time = tmpl["mintime"]
if mine_time > now:
logging.error("GBT mintime is in the future: %d is %d seconds later than %d", mine_time, (mine_time-now), now)
return 1
# address for reward
reward_addr, reward_spk = get_reward_addr_spk(args, tmpl["height"])
# mine block
logging.debug("Mining block delta=%s start=%s mine=%s", seconds_to_hms(mine_time-bestheader["time"]), mine_time, is_mine)
mined_blocks += 1
psbt = generate_psbt(tmpl, reward_spk, blocktime=mine_time)
input_stream = os.linesep.join([psbt, "true", "ALL"]).encode('utf8')
psbt_signed = json.loads(args.bcli("-stdin", "walletprocesspsbt", input=input_stream))
if not psbt_signed.get("complete",False):
logging.debug("Generated PSBT: %s" % (psbt,))
sys.stderr.write("PSBT signing failed\n")
return 1
block, signet_solution = do_decode_psbt(psbt_signed["psbt"])
block = finish_block(block, signet_solution, args.grind_cmd)
# submit block
r = args.bcli("-stdin", "submitblock", input=block.serialize().hex().encode('utf8'))
# report
bstr = "block" if is_mine else "backup block"
next_delta = next_block_delta(block.nBits, block.hash, ultimate_target, args.poisson)
next_delta += block.nTime - time.time()
next_is_mine = next_block_is_mine(block.hash, my_blocks)
logging.debug("Block hash %s payout to %s", block.hash, reward_addr)
logging.info("Mined %s at height %d; next in %s (%s)", bstr, tmpl["height"], seconds_to_hms(next_delta), ("mine" if next_is_mine else "backup"))
if r != "":
logging.warning("submitblock returned %s for height %d hash %s", r, tmpl["height"], block.hash)
lastheader = block.hash
def do_calibrate(args):
if args.nbits is not None and args.seconds is not None:
sys.stderr.write("Can only specify one of --nbits or --seconds\n")
return 1
if args.nbits is not None and len(args.nbits) != 8:
sys.stderr.write("Must specify 8 hex digits for --nbits\n")
return 1
TRIALS = 600 # gets variance down pretty low
TRIAL_BITS = 0x1e3ea75f # takes about 5m to do 600 trials
header = CBlockHeader()
header.nBits = TRIAL_BITS
targ = nbits_to_target(header.nBits)
start = time.time()
count = 0
for i in range(TRIALS):
header.nTime = i
header.nNonce = 0
headhex = header.serialize().hex()
cmd = args.grind_cmd.split(" ") + [headhex]
newheadhex = subprocess.run(cmd, stdout=subprocess.PIPE, input=b"", check=True).stdout.strip()
avg = (time.time() - start) * 1.0 / TRIALS
if args.nbits is not None:
want_targ = nbits_to_target(int(args.nbits,16))
want_time = avg*targ/want_targ
else:
want_time = args.seconds if args.seconds is not None else 25
want_targ = int(targ*(avg/want_time))
print("nbits=%08x for %ds average mining time" % (target_to_nbits(want_targ), want_time))
return 0
def bitcoin_cli(basecmd, args, **kwargs):
cmd = basecmd + ["-signet"] + args
logging.debug("Calling bitcoin-cli: %r", cmd)
out = subprocess.run(cmd, stdout=subprocess.PIPE, **kwargs, check=True).stdout
if isinstance(out, bytes):
out = out.decode('utf8')
return out.strip()
def main():
parser = argparse.ArgumentParser()
parser.add_argument("--cli", default="bitcoin-cli", type=str, help="bitcoin-cli command")
parser.add_argument("--debug", action="store_true", help="Print debugging info")
parser.add_argument("--quiet", action="store_true", help="Only print warnings/errors")
cmds = parser.add_subparsers(help="sub-commands")
genpsbt = cmds.add_parser("genpsbt", help="Generate a block PSBT for signing")
genpsbt.set_defaults(fn=do_genpsbt)
solvepsbt = cmds.add_parser("solvepsbt", help="Solve a signed block PSBT")
solvepsbt.set_defaults(fn=do_solvepsbt)
generate = cmds.add_parser("generate", help="Mine blocks")
generate.set_defaults(fn=do_generate)
generate.add_argument("--ongoing", action="store_true", help="Keep mining blocks")
generate.add_argument("--max-blocks", default=None, type=int, help="Max blocks to mine (default=1)")
generate.add_argument("--set-block-time", default=None, type=int, help="Set block time (unix timestamp)")
generate.add_argument("--nbits", default=None, type=str, help="Target nBits (specify difficulty)")
generate.add_argument("--min-nbits", action="store_true", help="Target minimum nBits (use min difficulty)")
generate.add_argument("--poisson", action="store_true", help="Simulate randomised block times")
generate.add_argument("--multiminer", default=None, type=str, help="Specify which set of blocks to mine (eg: 1-40/100 for the first 40%%, 2/3 for the second 3rd)")
generate.add_argument("--backup-delay", default=300, type=int, help="Seconds to delay before mining blocks reserved for other miners (default=300)")
generate.add_argument("--standby-delay", default=0, type=int, help="Seconds to delay before mining blocks (default=0)")
calibrate = cmds.add_parser("calibrate", help="Calibrate difficulty")
calibrate.set_defaults(fn=do_calibrate)
calibrate.add_argument("--nbits", type=str, default=None)
calibrate.add_argument("--seconds", type=int, default=None)
for sp in [genpsbt, generate]:
sp.add_argument("--address", default=None, type=str, help="Address for block reward payment")
sp.add_argument("--descriptor", default=None, type=str, help="Descriptor for block reward payment")
for sp in [solvepsbt, generate, calibrate]:
sp.add_argument("--grind-cmd", default=None, type=str, required=(sp==calibrate), help="Command to grind a block header for proof-of-work")
args = parser.parse_args(sys.argv[1:])
args.bcli = lambda *a, input=b"", **kwargs: bitcoin_cli(args.cli.split(" "), list(a), input=input, **kwargs)
if hasattr(args, "address") and hasattr(args, "descriptor"):
if args.address is None and args.descriptor is None:
sys.stderr.write("Must specify --address or --descriptor\n")
return 1
elif args.address is not None and args.descriptor is not None:
sys.stderr.write("Only specify one of --address or --descriptor\n")
return 1
args.derived_addresses = {}
if args.debug:
logging.getLogger().setLevel(logging.DEBUG)
elif args.quiet:
logging.getLogger().setLevel(logging.WARNING)
else:
logging.getLogger().setLevel(logging.INFO)
if hasattr(args, "fn"):
return args.fn(args)
else:
logging.error("Must specify command")
return 1
if __name__ == "__main__":
main()

0
miner_imports/test_framework/__init__.py Normal file
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175
miner_imports/test_framework/address.py Normal file
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#!/usr/bin/env python3
# Copyright (c) 2016-2021 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Encode and decode Bitcoin addresses.
- base58 P2PKH and P2SH addresses.
- bech32 segwit v0 P2WPKH and P2WSH addresses.
- bech32m segwit v1 P2TR addresses."""
import enum
import unittest
from .script import (
CScript,
OP_0,
OP_TRUE,
hash160,
hash256,
sha256,
taproot_construct,
)
from .segwit_addr import encode_segwit_address
from .util import assert_equal
ADDRESS_BCRT1_UNSPENDABLE = 'bcrt1qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq3xueyj'
ADDRESS_BCRT1_UNSPENDABLE_DESCRIPTOR = 'addr(bcrt1qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq3xueyj)#juyq9d97'
# Coins sent to this address can be spent with a witness stack of just OP_TRUE
ADDRESS_BCRT1_P2WSH_OP_TRUE = 'bcrt1qft5p2uhsdcdc3l2ua4ap5qqfg4pjaqlp250x7us7a8qqhrxrxfsqseac85'
class AddressType(enum.Enum):
bech32 = 'bech32'
p2sh_segwit = 'p2sh-segwit'
legacy = 'legacy' # P2PKH
chars = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
def create_deterministic_address_bcrt1_p2tr_op_true():
"""
Generates a deterministic bech32m address (segwit v1 output) that
can be spent with a witness stack of OP_TRUE and the control block
with internal public key (script-path spending).
Returns a tuple with the generated address and the internal key.
"""
internal_key = (1).to_bytes(32, 'big')
scriptPubKey = taproot_construct(internal_key, [(None, CScript([OP_TRUE]))]).scriptPubKey
address = encode_segwit_address("bcrt", 1, scriptPubKey[2:])
assert_equal(address, 'bcrt1p9yfmy5h72durp7zrhlw9lf7jpwjgvwdg0jr0lqmmjtgg83266lqsekaqka')
return (address, internal_key)
def byte_to_base58(b, version):
result = ''
b = bytes([version]) + b # prepend version
b += hash256(b)[:4] # append checksum
value = int.from_bytes(b, 'big')
while value > 0:
result = chars[value % 58] + result
value //= 58
while b[0] == 0:
result = chars[0] + result
b = b[1:]
return result
def base58_to_byte(s):
"""Converts a base58-encoded string to its data and version.
Throws if the base58 checksum is invalid."""
if not s:
return b''
n = 0
for c in s:
n *= 58
assert c in chars
digit = chars.index(c)
n += digit
h = '%x' % n
if len(h) % 2:
h = '0' + h
res = n.to_bytes((n.bit_length() + 7) // 8, 'big')
pad = 0
for c in s:
if c == chars[0]:
pad += 1
else:
break
res = b'\x00' * pad + res
# Assert if the checksum is invalid
assert_equal(hash256(res[:-4])[:4], res[-4:])
return res[1:-4], int(res[0])
def keyhash_to_p2pkh(hash, main=False):
assert len(hash) == 20
version = 0 if main else 111
return byte_to_base58(hash, version)
def scripthash_to_p2sh(hash, main=False):
assert len(hash) == 20
version = 5 if main else 196
return byte_to_base58(hash, version)
def key_to_p2pkh(key, main=False):
key = check_key(key)
return keyhash_to_p2pkh(hash160(key), main)
def script_to_p2sh(script, main=False):
script = check_script(script)
return scripthash_to_p2sh(hash160(script), main)
def key_to_p2sh_p2wpkh(key, main=False):
key = check_key(key)
p2shscript = CScript([OP_0, hash160(key)])
return script_to_p2sh(p2shscript, main)
def program_to_witness(version, program, main=False):
if (type(program) is str):
program = bytes.fromhex(program)
assert 0 <= version <= 16
assert 2 <= len(program) <= 40
assert version > 0 or len(program) in [20, 32]
return encode_segwit_address("bc" if main else "bcrt", version, program)
def script_to_p2wsh(script, main=False):
script = check_script(script)
return program_to_witness(0, sha256(script), main)
def key_to_p2wpkh(key, main=False):
key = check_key(key)
return program_to_witness(0, hash160(key), main)
def script_to_p2sh_p2wsh(script, main=False):
script = check_script(script)
p2shscript = CScript([OP_0, sha256(script)])
return script_to_p2sh(p2shscript, main)
def check_key(key):
if (type(key) is str):
key = bytes.fromhex(key) # Assuming this is hex string
if (type(key) is bytes and (len(key) == 33 or len(key) == 65)):
return key
assert False
def check_script(script):
if (type(script) is str):
script = bytes.fromhex(script) # Assuming this is hex string
if (type(script) is bytes or type(script) is CScript):
return script
assert False
class TestFrameworkScript(unittest.TestCase):
def test_base58encodedecode(self):
def check_base58(data, version):
self.assertEqual(base58_to_byte(byte_to_base58(data, version)), (data, version))
check_base58(bytes.fromhex('1f8ea1702a7bd4941bca0941b852c4bbfedb2e05'), 111)
check_base58(bytes.fromhex('3a0b05f4d7f66c3ba7009f453530296c845cc9cf'), 111)
check_base58(bytes.fromhex('41c1eaf111802559bad61b60d62b1f897c63928a'), 111)
check_base58(bytes.fromhex('0041c1eaf111802559bad61b60d62b1f897c63928a'), 111)
check_base58(bytes.fromhex('000041c1eaf111802559bad61b60d62b1f897c63928a'), 111)
check_base58(bytes.fromhex('00000041c1eaf111802559bad61b60d62b1f897c63928a'), 111)
check_base58(bytes.fromhex('1f8ea1702a7bd4941bca0941b852c4bbfedb2e05'), 0)
check_base58(bytes.fromhex('3a0b05f4d7f66c3ba7009f453530296c845cc9cf'), 0)
check_base58(bytes.fromhex('41c1eaf111802559bad61b60d62b1f897c63928a'), 0)
check_base58(bytes.fromhex('0041c1eaf111802559bad61b60d62b1f897c63928a'), 0)
check_base58(bytes.fromhex('000041c1eaf111802559bad61b60d62b1f897c63928a'), 0)
check_base58(bytes.fromhex('00000041c1eaf111802559bad61b60d62b1f897c63928a'), 0)

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# Copyright (c) 2011 Jeff Garzik
#
# Previous copyright, from python-jsonrpc/jsonrpc/proxy.py:
#
# Copyright (c) 2007 Jan-Klaas Kollhof
#
# This file is part of jsonrpc.
#
# jsonrpc is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
#
# This software is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this software; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""HTTP proxy for opening RPC connection to bitcoind.
AuthServiceProxy has the following improvements over python-jsonrpc's
ServiceProxy class:
- HTTP connections persist for the life of the AuthServiceProxy object
(if server supports HTTP/1.1)
- sends protocol 'version', per JSON-RPC 1.1
- sends proper, incrementing 'id'
- sends Basic HTTP authentication headers
- parses all JSON numbers that look like floats as Decimal
- uses standard Python json lib
"""
import base64
import decimal
from http import HTTPStatus
import http.client
import json
import logging
import os
import socket
import time
import urllib.parse
HTTP_TIMEOUT = 30
USER_AGENT = "AuthServiceProxy/0.1"
log = logging.getLogger("BitcoinRPC")
class JSONRPCException(Exception):
def __init__(self, rpc_error, http_status=None):
try:
errmsg = '%(message)s (%(code)i)' % rpc_error
except (KeyError, TypeError):
errmsg = ''
super().__init__(errmsg)
self.error = rpc_error
self.http_status = http_status
def EncodeDecimal(o):
if isinstance(o, decimal.Decimal):
return str(o)
raise TypeError(repr(o) + " is not JSON serializable")
class AuthServiceProxy():
__id_count = 0
# ensure_ascii: escape unicode as \uXXXX, passed to json.dumps
def __init__(self, service_url, service_name=None, timeout=HTTP_TIMEOUT, connection=None, ensure_ascii=True):
self.__service_url = service_url
self._service_name = service_name
self.ensure_ascii = ensure_ascii # can be toggled on the fly by tests
self.__url = urllib.parse.urlparse(service_url)
user = None if self.__url.username is None else self.__url.username.encode('utf8')
passwd = None if self.__url.password is None else self.__url.password.encode('utf8')
authpair = user + b':' + passwd
self.__auth_header = b'Basic ' + base64.b64encode(authpair)
self.timeout = timeout
self._set_conn(connection)
def __getattr__(self, name):
if name.startswith('__') and name.endswith('__'):
# Python internal stuff
raise AttributeError
if self._service_name is not None:
name = "%s.%s" % (self._service_name, name)
return AuthServiceProxy(self.__service_url, name, connection=self.__conn)
def _request(self, method, path, postdata):
'''
Do a HTTP request, with retry if we get disconnected (e.g. due to a timeout).
This is a workaround for https://bugs.python.org/issue3566 which is fixed in Python 3.5.
'''
headers = {'Host': self.__url.hostname,
'User-Agent': USER_AGENT,
'Authorization': self.__auth_header,
'Content-type': 'application/json'}
if os.name == 'nt':
# Windows somehow does not like to re-use connections
# TODO: Find out why the connection would disconnect occasionally and make it reusable on Windows
# Avoid "ConnectionAbortedError: [WinError 10053] An established connection was aborted by the software in your host machine"
self._set_conn()
try:
self.__conn.request(method, path, postdata, headers)
return self._get_response()
except (BrokenPipeError, ConnectionResetError):
# Python 3.5+ raises BrokenPipeError when the connection was reset
# ConnectionResetError happens on FreeBSD
self.__conn.close()
self.__conn.request(method, path, postdata, headers)
return self._get_response()
except OSError as e:
# Workaround for a bug on macOS. See https://bugs.python.org/issue33450
retry = '[Errno 41] Protocol wrong type for socket' in str(e)
if retry:
self.__conn.close()
self.__conn.request(method, path, postdata, headers)
return self._get_response()
else:
raise
def get_request(self, *args, **argsn):
AuthServiceProxy.__id_count += 1
log.debug("-{}-> {} {}".format(
AuthServiceProxy.__id_count,
self._service_name,
json.dumps(args or argsn, default=EncodeDecimal, ensure_ascii=self.ensure_ascii),
))
if args and argsn:
raise ValueError('Cannot handle both named and positional arguments')
return {'version': '1.1',
'method': self._service_name,
'params': args or argsn,
'id': AuthServiceProxy.__id_count}
def __call__(self, *args, **argsn):
postdata = json.dumps(self.get_request(*args, **argsn), default=EncodeDecimal, ensure_ascii=self.ensure_ascii)
response, status = self._request('POST', self.__url.path, postdata.encode('utf-8'))
if response['error'] is not None:
raise JSONRPCException(response['error'], status)
elif 'result' not in response:
raise JSONRPCException({
'code': -343, 'message': 'missing JSON-RPC result'}, status)
elif status != HTTPStatus.OK:
raise JSONRPCException({
'code': -342, 'message': 'non-200 HTTP status code but no JSON-RPC error'}, status)
else:
return response['result']
def batch(self, rpc_call_list):
postdata = json.dumps(list(rpc_call_list), default=EncodeDecimal, ensure_ascii=self.ensure_ascii)
log.debug("--> " + postdata)
response, status = self._request('POST', self.__url.path, postdata.encode('utf-8'))
if status != HTTPStatus.OK:
raise JSONRPCException({
'code': -342, 'message': 'non-200 HTTP status code but no JSON-RPC error'}, status)
return response
def _get_response(self):
req_start_time = time.time()
try:
http_response = self.__conn.getresponse()
except socket.timeout:
raise JSONRPCException({
'code': -344,
'message': '%r RPC took longer than %f seconds. Consider '
'using larger timeout for calls that take '
'longer to return.' % (self._service_name,
self.__conn.timeout)})
if http_response is None:
raise JSONRPCException({
'code': -342, 'message': 'missing HTTP response from server'})
content_type = http_response.getheader('Content-Type')
if content_type != 'application/json':
raise JSONRPCException(
{'code': -342, 'message': 'non-JSON HTTP response with \'%i %s\' from server' % (http_response.status, http_response.reason)},
http_response.status)
responsedata = http_response.read().decode('utf8')
response = json.loads(responsedata, parse_float=decimal.Decimal)
elapsed = time.time() - req_start_time
if "error" in response and response["error"] is None:
log.debug("<-%s- [%.6f] %s" % (response["id"], elapsed, json.dumps(response["result"], default=EncodeDecimal, ensure_ascii=self.ensure_ascii)))
else:
log.debug("<-- [%.6f] %s" % (elapsed, responsedata))
return response, http_response.status
def __truediv__(self, relative_uri):
return AuthServiceProxy("{}/{}".format(self.__service_url, relative_uri), self._service_name, connection=self.__conn)
def _set_conn(self, connection=None):
port = 80 if self.__url.port is None else self.__url.port
if connection:
self.__conn = connection
self.timeout = connection.timeout
elif self.__url.scheme == 'https':
self.__conn = http.client.HTTPSConnection(self.__url.hostname, port, timeout=self.timeout)
else:
self.__conn = http.client.HTTPConnection(self.__url.hostname, port, timeout=self.timeout)

151
miner_imports/test_framework/bdb.py Normal file
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#!/usr/bin/env python3
# Copyright (c) 2020-2021 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""
Utilities for working directly with the wallet's BDB database file
This is specific to the configuration of BDB used in this project:
- pagesize: 4096 bytes
- Outer database contains single subdatabase named 'main'
- btree
- btree leaf pages
Each key-value pair is two entries in a btree leaf. The first is the key, the one that follows
is the value. And so on. Note that the entry data is itself not in the correct order. Instead
entry offsets are stored in the correct order and those offsets are needed to then retrieve
the data itself.
Page format can be found in BDB source code dbinc/db_page.h
This only implements the deserialization of btree metadata pages and normal btree pages. Overflow
pages are not implemented but may be needed in the future if dealing with wallets with large
transactions.
`db_dump -da wallet.dat` is useful to see the data in a wallet.dat BDB file
"""
import struct
# Important constants
PAGESIZE = 4096
OUTER_META_PAGE = 0
INNER_META_PAGE = 2
# Page type values
BTREE_INTERNAL = 3
BTREE_LEAF = 5
BTREE_META = 9
# Some magic numbers for sanity checking
BTREE_MAGIC = 0x053162
DB_VERSION = 9
# Deserializes a leaf page into a dict.
# Btree internal pages have the same header, for those, return None.
# For the btree leaf pages, deserialize them and put all the data into a dict
def dump_leaf_page(data):
page_info = {}
page_header = data[0:26]
_, pgno, prev_pgno, next_pgno, entries, hf_offset, level, pg_type = struct.unpack('QIIIHHBB', page_header)
page_info['pgno'] = pgno
page_info['prev_pgno'] = prev_pgno
page_info['next_pgno'] = next_pgno
page_info['hf_offset'] = hf_offset
page_info['level'] = level
page_info['pg_type'] = pg_type
page_info['entry_offsets'] = struct.unpack('{}H'.format(entries), data[26:26 + entries * 2])
page_info['entries'] = []
if pg_type == BTREE_INTERNAL:
# Skip internal pages. These are the internal nodes of the btree and don't contain anything relevant to us
return None
assert pg_type == BTREE_LEAF, 'A non-btree leaf page has been encountered while dumping leaves'
for i in range(0, entries):
offset = page_info['entry_offsets'][i]
entry = {'offset': offset}
page_data_header = data[offset:offset + 3]
e_len, pg_type = struct.unpack('HB', page_data_header)
entry['len'] = e_len
entry['pg_type'] = pg_type
entry['data'] = data[offset + 3:offset + 3 + e_len]
page_info['entries'].append(entry)
return page_info
# Deserializes a btree metadata page into a dict.
# Does a simple sanity check on the magic value, type, and version
def dump_meta_page(page):
# metadata page
# general metadata
metadata = {}
meta_page = page[0:72]
_, pgno, magic, version, pagesize, encrypt_alg, pg_type, metaflags, _, free, last_pgno, nparts, key_count, record_count, flags, uid = struct.unpack('QIIIIBBBBIIIIII20s', meta_page)
metadata['pgno'] = pgno
metadata['magic'] = magic
metadata['version'] = version
metadata['pagesize'] = pagesize
metadata['encrypt_alg'] = encrypt_alg
metadata['pg_type'] = pg_type
metadata['metaflags'] = metaflags
metadata['free'] = free
metadata['last_pgno'] = last_pgno
metadata['nparts'] = nparts
metadata['key_count'] = key_count
metadata['record_count'] = record_count
metadata['flags'] = flags
metadata['uid'] = uid.hex().encode()
assert magic == BTREE_MAGIC, 'bdb magic does not match bdb btree magic'
assert pg_type == BTREE_META, 'Metadata page is not a btree metadata page'
assert version == DB_VERSION, 'Database too new'
# btree metadata
btree_meta_page = page[72:512]
_, minkey, re_len, re_pad, root, _, crypto_magic, _, iv, chksum = struct.unpack('IIIII368sI12s16s20s', btree_meta_page)
metadata['minkey'] = minkey
metadata['re_len'] = re_len
metadata['re_pad'] = re_pad
metadata['root'] = root
metadata['crypto_magic'] = crypto_magic
metadata['iv'] = iv.hex().encode()
metadata['chksum'] = chksum.hex().encode()
return metadata
# Given the dict from dump_leaf_page, get the key-value pairs and put them into a dict
def extract_kv_pairs(page_data):
out = {}
last_key = None
for i, entry in enumerate(page_data['entries']):
# By virtue of these all being pairs, even number entries are keys, and odd are values
if i % 2 == 0:
out[entry['data']] = b''
last_key = entry['data']
else:
out[last_key] = entry['data']
return out
# Extract the key-value pairs of the BDB file given in filename
def dump_bdb_kv(filename):
# Read in the BDB file and start deserializing it
pages = []
with open(filename, 'rb') as f:
data = f.read(PAGESIZE)
while len(data) > 0:
pages.append(data)
data = f.read(PAGESIZE)
# Sanity check the meta pages
dump_meta_page(pages[OUTER_META_PAGE])
dump_meta_page(pages[INNER_META_PAGE])
# Fetch the kv pairs from the leaf pages
kv = {}
for i in range(3, len(pages)):
info = dump_leaf_page(pages[i])
if info is not None:
info_kv = extract_kv_pairs(info)
kv = {**kv, **info_kv}
return kv

16
miner_imports/test_framework/bip340_test_vectors.csv Normal file
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index,secret key,public key,aux_rand,message,signature,verification result,comment
0,0000000000000000000000000000000000000000000000000000000000000003,F9308A019258C31049344F85F89D5229B531C845836F99B08601F113BCE036F9,0000000000000000000000000000000000000000000000000000000000000000,0000000000000000000000000000000000000000000000000000000000000000,E907831F80848D1069A5371B402410364BDF1C5F8307B0084C55F1CE2DCA821525F66A4A85EA8B71E482A74F382D2CE5EBEEE8FDB2172F477DF4900D310536C0,TRUE,
1,B7E151628AED2A6ABF7158809CF4F3C762E7160F38B4DA56A784D9045190CFEF,DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659,0000000000000000000000000000000000000000000000000000000000000001,243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89,6896BD60EEAE296DB48A229FF71DFE071BDE413E6D43F917DC8DCF8C78DE33418906D11AC976ABCCB20B091292BFF4EA897EFCB639EA871CFA95F6DE339E4B0A,TRUE,
2,C90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B14E5C9,DD308AFEC5777E13121FA72B9CC1B7CC0139715309B086C960E18FD969774EB8,C87AA53824B4D7AE2EB035A2B5BBBCCC080E76CDC6D1692C4B0B62D798E6D906,7E2D58D8B3BCDF1ABADEC7829054F90DDA9805AAB56C77333024B9D0A508B75C,5831AAEED7B44BB74E5EAB94BA9D4294C49BCF2A60728D8B4C200F50DD313C1BAB745879A5AD954A72C45A91C3A51D3C7ADEA98D82F8481E0E1E03674A6F3FB7,TRUE,
3,0B432B2677937381AEF05BB02A66ECD012773062CF3FA2549E44F58ED2401710,25D1DFF95105F5253C4022F628A996AD3A0D95FBF21D468A1B33F8C160D8F517,FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,7EB0509757E246F19449885651611CB965ECC1A187DD51B64FDA1EDC9637D5EC97582B9CB13DB3933705B32BA982AF5AF25FD78881EBB32771FC5922EFC66EA3,TRUE,test fails if msg is reduced modulo p or n
4,,D69C3509BB99E412E68B0FE8544E72837DFA30746D8BE2AA65975F29D22DC7B9,,4DF3C3F68FCC83B27E9D42C90431A72499F17875C81A599B566C9889B9696703,00000000000000000000003B78CE563F89A0ED9414F5AA28AD0D96D6795F9C6376AFB1548AF603B3EB45C9F8207DEE1060CB71C04E80F593060B07D28308D7F4,TRUE,
5,,EEFDEA4CDB677750A420FEE807EACF21EB9898AE79B9768766E4FAA04A2D4A34,,243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89,6CFF5C3BA86C69EA4B7376F31A9BCB4F74C1976089B2D9963DA2E5543E17776969E89B4C5564D00349106B8497785DD7D1D713A8AE82B32FA79D5F7FC407D39B,FALSE,public key not on the curve
6,,DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659,,243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89,FFF97BD5755EEEA420453A14355235D382F6472F8568A18B2F057A14602975563CC27944640AC607CD107AE10923D9EF7A73C643E166BE5EBEAFA34B1AC553E2,FALSE,has_even_y(R) is false
7,,DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659,,243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89,1FA62E331EDBC21C394792D2AB1100A7B432B013DF3F6FF4F99FCB33E0E1515F28890B3EDB6E7189B630448B515CE4F8622A954CFE545735AAEA5134FCCDB2BD,FALSE,negated message
8,,DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659,,243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89,6CFF5C3BA86C69EA4B7376F31A9BCB4F74C1976089B2D9963DA2E5543E177769961764B3AA9B2FFCB6EF947B6887A226E8D7C93E00C5ED0C1834FF0D0C2E6DA6,FALSE,negated s value
9,,DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659,,243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89,0000000000000000000000000000000000000000000000000000000000000000123DDA8328AF9C23A94C1FEECFD123BA4FB73476F0D594DCB65C6425BD186051,FALSE,sG - eP is infinite. Test fails in single verification if has_even_y(inf) is defined as true and x(inf) as 0
10,,DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659,,243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89,00000000000000000000000000000000000000000000000000000000000000017615FBAF5AE28864013C099742DEADB4DBA87F11AC6754F93780D5A1837CF197,FALSE,sG - eP is infinite. Test fails in single verification if has_even_y(inf) is defined as true and x(inf) as 1
11,,DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659,,243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89,4A298DACAE57395A15D0795DDBFD1DCB564DA82B0F269BC70A74F8220429BA1D69E89B4C5564D00349106B8497785DD7D1D713A8AE82B32FA79D5F7FC407D39B,FALSE,sig[0:32] is not an X coordinate on the curve
12,,DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659,,243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89,FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F69E89B4C5564D00349106B8497785DD7D1D713A8AE82B32FA79D5F7FC407D39B,FALSE,sig[0:32] is equal to field size
13,,DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659,,243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89,6CFF5C3BA86C69EA4B7376F31A9BCB4F74C1976089B2D9963DA2E5543E177769FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141,FALSE,sig[32:64] is equal to curve order
14,,FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC30,,243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89,6CFF5C3BA86C69EA4B7376F31A9BCB4F74C1976089B2D9963DA2E5543E17776969E89B4C5564D00349106B8497785DD7D1D713A8AE82B32FA79D5F7FC407D39B,FALSE,public key is not a valid X coordinate because it exceeds the field size
1 index secret key public key aux_rand message signature verification result comment
2 0 0000000000000000000000000000000000000000000000000000000000000003 F9308A019258C31049344F85F89D5229B531C845836F99B08601F113BCE036F9 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 E907831F80848D1069A5371B402410364BDF1C5F8307B0084C55F1CE2DCA821525F66A4A85EA8B71E482A74F382D2CE5EBEEE8FDB2172F477DF4900D310536C0 TRUE
3 1 B7E151628AED2A6ABF7158809CF4F3C762E7160F38B4DA56A784D9045190CFEF DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659 0000000000000000000000000000000000000000000000000000000000000001 243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89 6896BD60EEAE296DB48A229FF71DFE071BDE413E6D43F917DC8DCF8C78DE33418906D11AC976ABCCB20B091292BFF4EA897EFCB639EA871CFA95F6DE339E4B0A TRUE
4 2 C90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B14E5C9 DD308AFEC5777E13121FA72B9CC1B7CC0139715309B086C960E18FD969774EB8 C87AA53824B4D7AE2EB035A2B5BBBCCC080E76CDC6D1692C4B0B62D798E6D906 7E2D58D8B3BCDF1ABADEC7829054F90DDA9805AAB56C77333024B9D0A508B75C 5831AAEED7B44BB74E5EAB94BA9D4294C49BCF2A60728D8B4C200F50DD313C1BAB745879A5AD954A72C45A91C3A51D3C7ADEA98D82F8481E0E1E03674A6F3FB7 TRUE
5 3 0B432B2677937381AEF05BB02A66ECD012773062CF3FA2549E44F58ED2401710 25D1DFF95105F5253C4022F628A996AD3A0D95FBF21D468A1B33F8C160D8F517 FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF 7EB0509757E246F19449885651611CB965ECC1A187DD51B64FDA1EDC9637D5EC97582B9CB13DB3933705B32BA982AF5AF25FD78881EBB32771FC5922EFC66EA3 TRUE test fails if msg is reduced modulo p or n
6 4 D69C3509BB99E412E68B0FE8544E72837DFA30746D8BE2AA65975F29D22DC7B9 4DF3C3F68FCC83B27E9D42C90431A72499F17875C81A599B566C9889B9696703 00000000000000000000003B78CE563F89A0ED9414F5AA28AD0D96D6795F9C6376AFB1548AF603B3EB45C9F8207DEE1060CB71C04E80F593060B07D28308D7F4 TRUE
7 5 EEFDEA4CDB677750A420FEE807EACF21EB9898AE79B9768766E4FAA04A2D4A34 243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89 6CFF5C3BA86C69EA4B7376F31A9BCB4F74C1976089B2D9963DA2E5543E17776969E89B4C5564D00349106B8497785DD7D1D713A8AE82B32FA79D5F7FC407D39B FALSE public key not on the curve
8 6 DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659 243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89 FFF97BD5755EEEA420453A14355235D382F6472F8568A18B2F057A14602975563CC27944640AC607CD107AE10923D9EF7A73C643E166BE5EBEAFA34B1AC553E2 FALSE has_even_y(R) is false
9 7 DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659 243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89 1FA62E331EDBC21C394792D2AB1100A7B432B013DF3F6FF4F99FCB33E0E1515F28890B3EDB6E7189B630448B515CE4F8622A954CFE545735AAEA5134FCCDB2BD FALSE negated message
10 8 DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659 243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89 6CFF5C3BA86C69EA4B7376F31A9BCB4F74C1976089B2D9963DA2E5543E177769961764B3AA9B2FFCB6EF947B6887A226E8D7C93E00C5ED0C1834FF0D0C2E6DA6 FALSE negated s value
11 9 DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659 243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89 0000000000000000000000000000000000000000000000000000000000000000123DDA8328AF9C23A94C1FEECFD123BA4FB73476F0D594DCB65C6425BD186051 FALSE sG - eP is infinite. Test fails in single verification if has_even_y(inf) is defined as true and x(inf) as 0
12 10 DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659 243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89 00000000000000000000000000000000000000000000000000000000000000017615FBAF5AE28864013C099742DEADB4DBA87F11AC6754F93780D5A1837CF197 FALSE sG - eP is infinite. Test fails in single verification if has_even_y(inf) is defined as true and x(inf) as 1
13 11 DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659 243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89 4A298DACAE57395A15D0795DDBFD1DCB564DA82B0F269BC70A74F8220429BA1D69E89B4C5564D00349106B8497785DD7D1D713A8AE82B32FA79D5F7FC407D39B FALSE sig[0:32] is not an X coordinate on the curve
14 12 DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659 243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89 FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F69E89B4C5564D00349106B8497785DD7D1D713A8AE82B32FA79D5F7FC407D39B FALSE sig[0:32] is equal to field size
15 13 DFF1D77F2A671C5F36183726DB2341BE58FEAE1DA2DECED843240F7B502BA659 243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89 6CFF5C3BA86C69EA4B7376F31A9BCB4F74C1976089B2D9963DA2E5543E177769FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 FALSE sig[32:64] is equal to curve order
16 14 FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC30 243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89 6CFF5C3BA86C69EA4B7376F31A9BCB4F74C1976089B2D9963DA2E5543E17776969E89B4C5564D00349106B8497785DD7D1D713A8AE82B32FA79D5F7FC407D39B FALSE public key is not a valid X coordinate because it exceeds the field size

256
miner_imports/test_framework/blocktools.py Normal file
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#!/usr/bin/env python3
# Copyright (c) 2015-2021 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Utilities for manipulating blocks and transactions."""
import struct
import time
import unittest
from .address import (
key_to_p2sh_p2wpkh,
key_to_p2wpkh,
script_to_p2sh_p2wsh,
script_to_p2wsh,
)
from .messages import (
CBlock,
COIN,
COutPoint,
CTransaction,
CTxIn,
CTxInWitness,
CTxOut,
SEQUENCE_FINAL,
hash256,
ser_uint256,
tx_from_hex,
uint256_from_str,
)
from .script import (
CScript,
CScriptNum,
CScriptOp,
OP_1,
OP_RETURN,
OP_TRUE,
)
from .script_util import (
key_to_p2pk_script,
key_to_p2wpkh_script,
keys_to_multisig_script,
script_to_p2wsh_script,
)
from .util import assert_equal
WITNESS_SCALE_FACTOR = 4
MAX_BLOCK_SIGOPS = 20000
MAX_BLOCK_SIGOPS_WEIGHT = MAX_BLOCK_SIGOPS * WITNESS_SCALE_FACTOR
# Genesis block time (regtest)
TIME_GENESIS_BLOCK = 1296688602
MAX_FUTURE_BLOCK_TIME = 2 * 60 * 60
# Coinbase transaction outputs can only be spent after this number of new blocks (network rule)
COINBASE_MATURITY = 100
# From BIP141
WITNESS_COMMITMENT_HEADER = b"\xaa\x21\xa9\xed"
NORMAL_GBT_REQUEST_PARAMS = {"rules": ["segwit"]}
VERSIONBITS_LAST_OLD_BLOCK_VERSION = 4
def create_block(hashprev=None, coinbase=None, ntime=None, *, version=None, tmpl=None, txlist=None):
"""Create a block (with regtest difficulty)."""
block = CBlock()
if tmpl is None:
tmpl = {}
block.nVersion = version or tmpl.get('version') or VERSIONBITS_LAST_OLD_BLOCK_VERSION
block.nTime = ntime or tmpl.get('curtime') or int(time.time() + 600)
block.hashPrevBlock = hashprev or int(tmpl['previousblockhash'], 0x10)
if tmpl and not tmpl.get('bits') is None:
block.nBits = struct.unpack('>I', bytes.fromhex(tmpl['bits']))[0]
else:
block.nBits = 0x207fffff # difficulty retargeting is disabled in REGTEST chainparams
if coinbase is None:
coinbase = create_coinbase(height=tmpl['height'])
block.vtx.append(coinbase)
if txlist:
for tx in txlist:
if not hasattr(tx, 'calc_sha256'):
tx = tx_from_hex(tx)
block.vtx.append(tx)
block.hashMerkleRoot = block.calc_merkle_root()
block.calc_sha256()
return block
def get_witness_script(witness_root, witness_nonce):
witness_commitment = uint256_from_str(hash256(ser_uint256(witness_root) + ser_uint256(witness_nonce)))
output_data = WITNESS_COMMITMENT_HEADER + ser_uint256(witness_commitment)
return CScript([OP_RETURN, output_data])
def add_witness_commitment(block, nonce=0):
"""Add a witness commitment to the block's coinbase transaction.
According to BIP141, blocks with witness rules active must commit to the
hash of all in-block transactions including witness."""
# First calculate the merkle root of the block's
# transactions, with witnesses.
witness_nonce = nonce
witness_root = block.calc_witness_merkle_root()
# witness_nonce should go to coinbase witness.
block.vtx[0].wit.vtxinwit = [CTxInWitness()]
block.vtx[0].wit.vtxinwit[0].scriptWitness.stack = [ser_uint256(witness_nonce)]
# witness commitment is the last OP_RETURN output in coinbase
block.vtx[0].vout.append(CTxOut(0, get_witness_script(witness_root, witness_nonce)))
block.vtx[0].rehash()
block.hashMerkleRoot = block.calc_merkle_root()
block.rehash()
def script_BIP34_coinbase_height(height):
if height <= 16:
res = CScriptOp.encode_op_n(height)
# Append dummy to increase scriptSig size above 2 (see bad-cb-length consensus rule)
return CScript([res, OP_1])
return CScript([CScriptNum(height)])
def create_coinbase(height, pubkey=None, extra_output_script=None, fees=0, nValue=50):
"""Create a coinbase transaction.
If pubkey is passed in, the coinbase output will be a P2PK output;
otherwise an anyone-can-spend output.
If extra_output_script is given, make a 0-value output to that
script. This is useful to pad block weight/sigops as needed. """
coinbase = CTransaction()
coinbase.vin.append(CTxIn(COutPoint(0, 0xffffffff), script_BIP34_coinbase_height(height), SEQUENCE_FINAL))
coinbaseoutput = CTxOut()
coinbaseoutput.nValue = nValue * COIN
if nValue == 50:
halvings = int(height / 150) # regtest
coinbaseoutput.nValue >>= halvings
coinbaseoutput.nValue += fees
if pubkey is not None:
coinbaseoutput.scriptPubKey = key_to_p2pk_script(pubkey)
else:
coinbaseoutput.scriptPubKey = CScript([OP_TRUE])
coinbase.vout = [coinbaseoutput]
if extra_output_script is not None:
coinbaseoutput2 = CTxOut()
coinbaseoutput2.nValue = 0
coinbaseoutput2.scriptPubKey = extra_output_script
coinbase.vout.append(coinbaseoutput2)
coinbase.calc_sha256()
return coinbase
def create_tx_with_script(prevtx, n, script_sig=b"", *, amount, script_pub_key=CScript()):
"""Return one-input, one-output transaction object
spending the prevtx's n-th output with the given amount.
Can optionally pass scriptPubKey and scriptSig, default is anyone-can-spend output.
"""
tx = CTransaction()
assert n < len(prevtx.vout)
tx.vin.append(CTxIn(COutPoint(prevtx.sha256, n), script_sig, SEQUENCE_FINAL))
tx.vout.append(CTxOut(amount, script_pub_key))
tx.calc_sha256()
return tx
def create_transaction(node, txid, to_address, *, amount):
""" Return signed transaction spending the first output of the
input txid. Note that the node must have a wallet that can
sign for the output that is being spent.
"""
raw_tx = create_raw_transaction(node, txid, to_address, amount=amount)
tx = tx_from_hex(raw_tx)
return tx
def create_raw_transaction(node, txid, to_address, *, amount):
""" Return raw signed transaction spending the first output of the
input txid. Note that the node must have a wallet that can sign
for the output that is being spent.
"""
psbt = node.createpsbt(inputs=[{"txid": txid, "vout": 0}], outputs={to_address: amount})
for _ in range(2):
for w in node.listwallets():
wrpc = node.get_wallet_rpc(w)
signed_psbt = wrpc.walletprocesspsbt(psbt)
psbt = signed_psbt['psbt']
final_psbt = node.finalizepsbt(psbt)
assert_equal(final_psbt["complete"], True)
return final_psbt['hex']
def get_legacy_sigopcount_block(block, accurate=True):
count = 0
for tx in block.vtx:
count += get_legacy_sigopcount_tx(tx, accurate)
return count
def get_legacy_sigopcount_tx(tx, accurate=True):
count = 0
for i in tx.vout:
count += i.scriptPubKey.GetSigOpCount(accurate)
for j in tx.vin:
# scriptSig might be of type bytes, so convert to CScript for the moment
count += CScript(j.scriptSig).GetSigOpCount(accurate)
return count
def witness_script(use_p2wsh, pubkey):
"""Create a scriptPubKey for a pay-to-witness TxOut.
This is either a P2WPKH output for the given pubkey, or a P2WSH output of a
1-of-1 multisig for the given pubkey. Returns the hex encoding of the
scriptPubKey."""
if not use_p2wsh:
# P2WPKH instead
pkscript = key_to_p2wpkh_script(pubkey)
else:
# 1-of-1 multisig
witness_script = keys_to_multisig_script([pubkey])
pkscript = script_to_p2wsh_script(witness_script)
return pkscript.hex()
def create_witness_tx(node, use_p2wsh, utxo, pubkey, encode_p2sh, amount):
"""Return a transaction (in hex) that spends the given utxo to a segwit output.
Optionally wrap the segwit output using P2SH."""
if use_p2wsh:
program = keys_to_multisig_script([pubkey])
addr = script_to_p2sh_p2wsh(program) if encode_p2sh else script_to_p2wsh(program)
else:
addr = key_to_p2sh_p2wpkh(pubkey) if encode_p2sh else key_to_p2wpkh(pubkey)
if not encode_p2sh:
assert_equal(node.getaddressinfo(addr)['scriptPubKey'], witness_script(use_p2wsh, pubkey))
return node.createrawtransaction([utxo], {addr: amount})
def send_to_witness(use_p2wsh, node, utxo, pubkey, encode_p2sh, amount, sign=True, insert_redeem_script=""):
"""Create a transaction spending a given utxo to a segwit output.
The output corresponds to the given pubkey: use_p2wsh determines whether to
use P2WPKH or P2WSH; encode_p2sh determines whether to wrap in P2SH.
sign=True will have the given node sign the transaction.
insert_redeem_script will be added to the scriptSig, if given."""
tx_to_witness = create_witness_tx(node, use_p2wsh, utxo, pubkey, encode_p2sh, amount)
if (sign):
signed = node.signrawtransactionwithwallet(tx_to_witness)
assert "errors" not in signed or len(["errors"]) == 0
return node.sendrawtransaction(signed["hex"])
else:
if (insert_redeem_script):
tx = tx_from_hex(tx_to_witness)
tx.vin[0].scriptSig += CScript([bytes.fromhex(insert_redeem_script)])
tx_to_witness = tx.serialize().hex()
return node.sendrawtransaction(tx_to_witness)
class TestFrameworkBlockTools(unittest.TestCase):
def test_create_coinbase(self):
height = 20
coinbase_tx = create_coinbase(height=height)
assert_equal(CScriptNum.decode(coinbase_tx.vin[0].scriptSig), height)

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#!/usr/bin/env python3
# Copyright (c) 2015-2021 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Utilities for doing coverage analysis on the RPC interface.
Provides a way to track which RPC commands are exercised during
testing.
"""
import os
from .authproxy import AuthServiceProxy
REFERENCE_FILENAME = 'rpc_interface.txt'
class AuthServiceProxyWrapper():
"""
An object that wraps AuthServiceProxy to record specific RPC calls.
"""
def __init__(self, auth_service_proxy_instance: AuthServiceProxy, rpc_url: str, coverage_logfile: str=None):
"""
Kwargs:
auth_service_proxy_instance: the instance being wrapped.
rpc_url: url of the RPC instance being wrapped
coverage_logfile: if specified, write each service_name
out to a file when called.
"""
self.auth_service_proxy_instance = auth_service_proxy_instance
self.rpc_url = rpc_url
self.coverage_logfile = coverage_logfile
def __getattr__(self, name):
return_val = getattr(self.auth_service_proxy_instance, name)
if not isinstance(return_val, type(self.auth_service_proxy_instance)):
# If proxy getattr returned an unwrapped value, do the same here.
return return_val
return AuthServiceProxyWrapper(return_val, self.rpc_url, self.coverage_logfile)
def __call__(self, *args, **kwargs):
"""
Delegates to AuthServiceProxy, then writes the particular RPC method
called to a file.
"""
return_val = self.auth_service_proxy_instance.__call__(*args, **kwargs)
self._log_call()
return return_val
def _log_call(self):
rpc_method = self.auth_service_proxy_instance._service_name
if self.coverage_logfile:
with open(self.coverage_logfile, 'a+', encoding='utf8') as f:
f.write("%s\n" % rpc_method)
def __truediv__(self, relative_uri):
return AuthServiceProxyWrapper(self.auth_service_proxy_instance / relative_uri,
self.rpc_url,
self.coverage_logfile)
def get_request(self, *args, **kwargs):
self._log_call()
return self.auth_service_proxy_instance.get_request(*args, **kwargs)
def get_filename(dirname, n_node):
"""
Get a filename unique to the test process ID and node.
This file will contain a list of RPC commands covered.
"""
pid = str(os.getpid())
return os.path.join(
dirname, "coverage.pid%s.node%s.txt" % (pid, str(n_node)))
def write_all_rpc_commands(dirname: str, node: AuthServiceProxy) -> bool:
"""
Write out a list of all RPC functions available in `bitcoin-cli` for
coverage comparison. This will only happen once per coverage
directory.
Args:
dirname: temporary test dir
node: client
Returns:
if the RPC interface file was written.
"""
filename = os.path.join(dirname, REFERENCE_FILENAME)
if os.path.isfile(filename):
return False
help_output = node.help().split('\n')
commands = set()
for line in help_output:
line = line.strip()
# Ignore blanks and headers
if line and not line.startswith('='):
commands.add("%s\n" % line.split()[0])
with open(filename, 'w', encoding='utf8') as f:
f.writelines(list(commands))
return True

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#!/usr/bin/env python3
# Copyright (c) 2019 Pieter Wuille
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Utility functions related to output descriptors"""
import re
INPUT_CHARSET = "0123456789()[],'/*abcdefgh@:$%{}IJKLMNOPQRSTUVWXYZ&+-.;<=>?!^_|~ijklmnopqrstuvwxyzABCDEFGH`#\"\\ "
CHECKSUM_CHARSET = "qpzry9x8gf2tvdw0s3jn54khce6mua7l"
GENERATOR = [0xf5dee51989, 0xa9fdca3312, 0x1bab10e32d, 0x3706b1677a, 0x644d626ffd]
def descsum_polymod(symbols):
"""Internal function that computes the descriptor checksum."""
chk = 1
for value in symbols:
top = chk >> 35
chk = (chk & 0x7ffffffff) << 5 ^ value
for i in range(5):
chk ^= GENERATOR[i] if ((top >> i) & 1) else 0
return chk
def descsum_expand(s):
"""Internal function that does the character to symbol expansion"""
groups = []
symbols = []
for c in s:
if not c in INPUT_CHARSET:
return None
v = INPUT_CHARSET.find(c)
symbols.append(v & 31)
groups.append(v >> 5)
if len(groups) == 3:
symbols.append(groups[0] * 9 + groups[1] * 3 + groups[2])
groups = []
if len(groups) == 1:
symbols.append(groups[0])
elif len(groups) == 2:
symbols.append(groups[0] * 3 + groups[1])
return symbols
def descsum_create(s):
"""Add a checksum to a descriptor without"""
symbols = descsum_expand(s) + [0, 0, 0, 0, 0, 0, 0, 0]
checksum = descsum_polymod(symbols) ^ 1
return s + '#' + ''.join(CHECKSUM_CHARSET[(checksum >> (5 * (7 - i))) & 31] for i in range(8))
def descsum_check(s, require=True):
"""Verify that the checksum is correct in a descriptor"""
if not '#' in s:
return not require
if s[-9] != '#':
return False
if not all(x in CHECKSUM_CHARSET for x in s[-8:]):
return False
symbols = descsum_expand(s[:-9]) + [CHECKSUM_CHARSET.find(x) for x in s[-8:]]
return descsum_polymod(symbols) == 1
def drop_origins(s):
'''Drop the key origins from a descriptor'''
desc = re.sub(r'\[.+?\]', '', s)
if '#' in s:
desc = desc[:desc.index('#')]
return descsum_create(desc)

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# Copyright (c) 2019-2020 Pieter Wuille
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Test-only secp256k1 elliptic curve implementation
WARNING: This code is slow, uses bad randomness, does not properly protect
keys, and is trivially vulnerable to side channel attacks. Do not use for
anything but tests."""
import csv
import hashlib
import hmac
import os
import random
import unittest
from .util import modinv
def TaggedHash(tag, data):
ss = hashlib.sha256(tag.encode('utf-8')).digest()
ss += ss
ss += data
return hashlib.sha256(ss).digest()
def jacobi_symbol(n, k):
"""Compute the Jacobi symbol of n modulo k
See https://en.wikipedia.org/wiki/Jacobi_symbol
For our application k is always prime, so this is the same as the Legendre symbol."""
assert k > 0 and k & 1, "jacobi symbol is only defined for positive odd k"
n %= k
t = 0
while n != 0:
while n & 1 == 0:
n >>= 1
r = k & 7
t ^= (r == 3 or r == 5)
n, k = k, n
t ^= (n & k & 3 == 3)
n = n % k
if k == 1:
return -1 if t else 1
return 0
def modsqrt(a, p):
"""Compute the square root of a modulo p when p % 4 = 3.
The Tonelli-Shanks algorithm can be used. See https://en.wikipedia.org/wiki/Tonelli-Shanks_algorithm
Limiting this function to only work for p % 4 = 3 means we don't need to
iterate through the loop. The highest n such that p - 1 = 2^n Q with Q odd
is n = 1. Therefore Q = (p-1)/2 and sqrt = a^((Q+1)/2) = a^((p+1)/4)
secp256k1's is defined over field of size 2**256 - 2**32 - 977, which is 3 mod 4.
"""
if p % 4 != 3:
raise NotImplementedError("modsqrt only implemented for p % 4 = 3")
sqrt = pow(a, (p + 1)//4, p)
if pow(sqrt, 2, p) == a % p:
return sqrt
return None
class EllipticCurve:
def __init__(self, p, a, b):
"""Initialize elliptic curve y^2 = x^3 + a*x + b over GF(p)."""
self.p = p
self.a = a % p
self.b = b % p
def affine(self, p1):
"""Convert a Jacobian point tuple p1 to affine form, or None if at infinity.
An affine point is represented as the Jacobian (x, y, 1)"""
x1, y1, z1 = p1
if z1 == 0:
return None
inv = modinv(z1, self.p)
inv_2 = (inv**2) % self.p
inv_3 = (inv_2 * inv) % self.p
return ((inv_2 * x1) % self.p, (inv_3 * y1) % self.p, 1)
def has_even_y(self, p1):
"""Whether the point p1 has an even Y coordinate when expressed in affine coordinates."""
return not (p1[2] == 0 or self.affine(p1)[1] & 1)
def negate(self, p1):
"""Negate a Jacobian point tuple p1."""
x1, y1, z1 = p1
return (x1, (self.p - y1) % self.p, z1)
def on_curve(self, p1):
"""Determine whether a Jacobian tuple p is on the curve (and not infinity)"""
x1, y1, z1 = p1
z2 = pow(z1, 2, self.p)
z4 = pow(z2, 2, self.p)
return z1 != 0 and (pow(x1, 3, self.p) + self.a * x1 * z4 + self.b * z2 * z4 - pow(y1, 2, self.p)) % self.p == 0
def is_x_coord(self, x):
"""Test whether x is a valid X coordinate on the curve."""
x_3 = pow(x, 3, self.p)
return jacobi_symbol(x_3 + self.a * x + self.b, self.p) != -1
def lift_x(self, x):
"""Given an X coordinate on the curve, return a corresponding affine point for which the Y coordinate is even."""
x_3 = pow(x, 3, self.p)
v = x_3 + self.a * x + self.b
y = modsqrt(v, self.p)
if y is None:
return None
return (x, self.p - y if y & 1 else y, 1)
def double(self, p1):
"""Double a Jacobian tuple p1
See https://en.wikibooks.org/wiki/Cryptography/Prime_Curve/Jacobian_Coordinates - Point Doubling"""
x1, y1, z1 = p1
if z1 == 0:
return (0, 1, 0)
y1_2 = (y1**2) % self.p
y1_4 = (y1_2**2) % self.p
x1_2 = (x1**2) % self.p
s = (4*x1*y1_2) % self.p
m = 3*x1_2
if self.a:
m += self.a * pow(z1, 4, self.p)
m = m % self.p
x2 = (m**2 - 2*s) % self.p
y2 = (m*(s - x2) - 8*y1_4) % self.p
z2 = (2*y1*z1) % self.p
return (x2, y2, z2)
def add_mixed(self, p1, p2):
"""Add a Jacobian tuple p1 and an affine tuple p2
See https://en.wikibooks.org/wiki/Cryptography/Prime_Curve/Jacobian_Coordinates - Point Addition (with affine point)"""
x1, y1, z1 = p1
x2, y2, z2 = p2
assert(z2 == 1)
# Adding to the point at infinity is a no-op
if z1 == 0:
return p2
z1_2 = (z1**2) % self.p
z1_3 = (z1_2 * z1) % self.p
u2 = (x2 * z1_2) % self.p
s2 = (y2 * z1_3) % self.p
if x1 == u2:
if (y1 != s2):
# p1 and p2 are inverses. Return the point at infinity.
return (0, 1, 0)
# p1 == p2. The formulas below fail when the two points are equal.
return self.double(p1)
h = u2 - x1
r = s2 - y1
h_2 = (h**2) % self.p
h_3 = (h_2 * h) % self.p
u1_h_2 = (x1 * h_2) % self.p
x3 = (r**2 - h_3 - 2*u1_h_2) % self.p
y3 = (r*(u1_h_2 - x3) - y1*h_3) % self.p
z3 = (h*z1) % self.p
return (x3, y3, z3)
def add(self, p1, p2):
"""Add two Jacobian tuples p1 and p2
See https://en.wikibooks.org/wiki/Cryptography/Prime_Curve/Jacobian_Coordinates - Point Addition"""
x1, y1, z1 = p1
x2, y2, z2 = p2
# Adding the point at infinity is a no-op
if z1 == 0:
return p2
if z2 == 0:
return p1
# Adding an Affine to a Jacobian is more efficient since we save field multiplications and squarings when z = 1
if z1 == 1:
return self.add_mixed(p2, p1)
if z2 == 1:
return self.add_mixed(p1, p2)
z1_2 = (z1**2) % self.p
z1_3 = (z1_2 * z1) % self.p
z2_2 = (z2**2) % self.p
z2_3 = (z2_2 * z2) % self.p
u1 = (x1 * z2_2) % self.p
u2 = (x2 * z1_2) % self.p
s1 = (y1 * z2_3) % self.p
s2 = (y2 * z1_3) % self.p
if u1 == u2:
if (s1 != s2):
# p1 and p2 are inverses. Return the point at infinity.
return (0, 1, 0)
# p1 == p2. The formulas below fail when the two points are equal.
return self.double(p1)
h = u2 - u1
r = s2 - s1
h_2 = (h**2) % self.p
h_3 = (h_2 * h) % self.p
u1_h_2 = (u1 * h_2) % self.p
x3 = (r**2 - h_3 - 2*u1_h_2) % self.p
y3 = (r*(u1_h_2 - x3) - s1*h_3) % self.p
z3 = (h*z1*z2) % self.p
return (x3, y3, z3)
def mul(self, ps):
"""Compute a (multi) point multiplication
ps is a list of (Jacobian tuple, scalar) pairs.
"""
r = (0, 1, 0)
for i in range(255, -1, -1):
r = self.double(r)
for (p, n) in ps:
if ((n >> i) & 1):
r = self.add(r, p)
return r
SECP256K1_FIELD_SIZE = 2**256 - 2**32 - 977
SECP256K1 = EllipticCurve(SECP256K1_FIELD_SIZE, 0, 7)
SECP256K1_G = (0x79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798, 0x483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8, 1)
SECP256K1_ORDER = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141
SECP256K1_ORDER_HALF = SECP256K1_ORDER // 2
class ECPubKey():
"""A secp256k1 public key"""
def __init__(self):
"""Construct an uninitialized public key"""
self.valid = False
def set(self, data):
"""Construct a public key from a serialization in compressed or uncompressed format"""
if (len(data) == 65 and data[0] == 0x04):
p = (int.from_bytes(data[1:33], 'big'), int.from_bytes(data[33:65], 'big'), 1)
self.valid = SECP256K1.on_curve(p)
if self.valid:
self.p = p
self.compressed = False
elif (len(data) == 33 and (data[0] == 0x02 or data[0] == 0x03)):
x = int.from_bytes(data[1:33], 'big')
if SECP256K1.is_x_coord(x):
p = SECP256K1.lift_x(x)
# Make the Y coordinate odd if required (lift_x always produces
# a point with an even Y coordinate).
if data[0] & 1:
p = SECP256K1.negate(p)
self.p = p
self.valid = True
self.compressed = True
else:
self.valid = False
else:
self.valid = False
@property
def is_compressed(self):
return self.compressed
@property
def is_valid(self):
return self.valid
def get_bytes(self):
assert(self.valid)
p = SECP256K1.affine(self.p)
if p is None:
return None
if self.compressed:
return bytes([0x02 + (p[1] & 1)]) + p[0].to_bytes(32, 'big')
else:
return bytes([0x04]) + p[0].to_bytes(32, 'big') + p[1].to_bytes(32, 'big')
def verify_ecdsa(self, sig, msg, low_s=True):
"""Verify a strictly DER-encoded ECDSA signature against this pubkey.
See https://en.wikipedia.org/wiki/Elliptic_Curve_Digital_Signature_Algorithm for the
ECDSA verifier algorithm"""
assert(self.valid)
# Extract r and s from the DER formatted signature. Return false for
# any DER encoding errors.
if (sig[1] + 2 != len(sig)):
return False
if (len(sig) < 4):
return False
if (sig[0] != 0x30):
return False
if (sig[2] != 0x02):
return False
rlen = sig[3]
if (len(sig) < 6 + rlen):
return False
if rlen < 1 or rlen > 33:
return False
if sig[4] >= 0x80:
return False
if (rlen > 1 and (sig[4] == 0) and not (sig[5] & 0x80)):
return False
r = int.from_bytes(sig[4:4+rlen], 'big')
if (sig[4+rlen] != 0x02):
return False
slen = sig[5+rlen]
if slen < 1 or slen > 33:
return False
if (len(sig) != 6 + rlen + slen):
return False
if sig[6+rlen] >= 0x80:
return False
if (slen > 1 and (sig[6+rlen] == 0) and not (sig[7+rlen] & 0x80)):
return False
s = int.from_bytes(sig[6+rlen:6+rlen+slen], 'big')
# Verify that r and s are within the group order
if r < 1 or s < 1 or r >= SECP256K1_ORDER or s >= SECP256K1_ORDER:
return False
if low_s and s >= SECP256K1_ORDER_HALF:
return False
z = int.from_bytes(msg, 'big')
# Run verifier algorithm on r, s
w = modinv(s, SECP256K1_ORDER)
u1 = z*w % SECP256K1_ORDER
u2 = r*w % SECP256K1_ORDER
R = SECP256K1.affine(SECP256K1.mul([(SECP256K1_G, u1), (self.p, u2)]))
if R is None or (R[0] % SECP256K1_ORDER) != r:
return False
return True
def generate_privkey():
"""Generate a valid random 32-byte private key."""
return random.randrange(1, SECP256K1_ORDER).to_bytes(32, 'big')
def rfc6979_nonce(key):
"""Compute signing nonce using RFC6979."""
v = bytes([1] * 32)
k = bytes([0] * 32)
k = hmac.new(k, v + b"\x00" + key, 'sha256').digest()
v = hmac.new(k, v, 'sha256').digest()
k = hmac.new(k, v + b"\x01" + key, 'sha256').digest()
v = hmac.new(k, v, 'sha256').digest()
return hmac.new(k, v, 'sha256').digest()
class ECKey():
"""A secp256k1 private key"""
def __init__(self):
self.valid = False
def set(self, secret, compressed):
"""Construct a private key object with given 32-byte secret and compressed flag."""
assert(len(secret) == 32)
secret = int.from_bytes(secret, 'big')
self.valid = (secret > 0 and secret < SECP256K1_ORDER)
if self.valid:
self.secret = secret
self.compressed = compressed
def generate(self, compressed=True):
"""Generate a random private key (compressed or uncompressed)."""
self.set(generate_privkey(), compressed)
def get_bytes(self):
"""Retrieve the 32-byte representation of this key."""
assert(self.valid)
return self.secret.to_bytes(32, 'big')
@property
def is_valid(self):
return self.valid
@property
def is_compressed(self):
return self.compressed
def get_pubkey(self):
"""Compute an ECPubKey object for this secret key."""
assert(self.valid)
ret = ECPubKey()
p = SECP256K1.mul([(SECP256K1_G, self.secret)])
ret.p = p
ret.valid = True
ret.compressed = self.compressed
return ret
def sign_ecdsa(self, msg, low_s=True, rfc6979=False):
"""Construct a DER-encoded ECDSA signature with this key.
See https://en.wikipedia.org/wiki/Elliptic_Curve_Digital_Signature_Algorithm for the
ECDSA signer algorithm."""
assert(self.valid)
z = int.from_bytes(msg, 'big')
# Note: no RFC6979 by default, but a simple random nonce (some tests rely on distinct transactions for the same operation)
if rfc6979:
k = int.from_bytes(rfc6979_nonce(self.secret.to_bytes(32, 'big') + msg), 'big')
else:
k = random.randrange(1, SECP256K1_ORDER)
R = SECP256K1.affine(SECP256K1.mul([(SECP256K1_G, k)]))
r = R[0] % SECP256K1_ORDER
s = (modinv(k, SECP256K1_ORDER) * (z + self.secret * r)) % SECP256K1_ORDER
if low_s and s > SECP256K1_ORDER_HALF:
s = SECP256K1_ORDER - s
# Represent in DER format. The byte representations of r and s have
# length rounded up (255 bits becomes 32 bytes and 256 bits becomes 33
# bytes).
rb = r.to_bytes((r.bit_length() + 8) // 8, 'big')
sb = s.to_bytes((s.bit_length() + 8) // 8, 'big')
return b'\x30' + bytes([4 + len(rb) + len(sb), 2, len(rb)]) + rb + bytes([2, len(sb)]) + sb
def compute_xonly_pubkey(key):
"""Compute an x-only (32 byte) public key from a (32 byte) private key.
This also returns whether the resulting public key was negated.
"""
assert len(key) == 32
x = int.from_bytes(key, 'big')
if x == 0 or x >= SECP256K1_ORDER:
return (None, None)
P = SECP256K1.affine(SECP256K1.mul([(SECP256K1_G, x)]))
return (P[0].to_bytes(32, 'big'), not SECP256K1.has_even_y(P))
def tweak_add_privkey(key, tweak):
"""Tweak a private key (after negating it if needed)."""
assert len(key) == 32
assert len(tweak) == 32
x = int.from_bytes(key, 'big')
if x == 0 or x >= SECP256K1_ORDER:
return None
if not SECP256K1.has_even_y(SECP256K1.mul([(SECP256K1_G, x)])):
x = SECP256K1_ORDER - x
t = int.from_bytes(tweak, 'big')
if t >= SECP256K1_ORDER:
return None
x = (x + t) % SECP256K1_ORDER
if x == 0:
return None
return x.to_bytes(32, 'big')
def tweak_add_pubkey(key, tweak):
"""Tweak a public key and return whether the result had to be negated."""
assert len(key) == 32
assert len(tweak) == 32
x_coord = int.from_bytes(key, 'big')
if x_coord >= SECP256K1_FIELD_SIZE:
return None
P = SECP256K1.lift_x(x_coord)
if P is None:
return None
t = int.from_bytes(tweak, 'big')
if t >= SECP256K1_ORDER:
return None
Q = SECP256K1.affine(SECP256K1.mul([(SECP256K1_G, t), (P, 1)]))
if Q is None:
return None
return (Q[0].to_bytes(32, 'big'), not SECP256K1.has_even_y(Q))
def verify_schnorr(key, sig, msg):
"""Verify a Schnorr signature (see BIP 340).
- key is a 32-byte xonly pubkey (computed using compute_xonly_pubkey).
- sig is a 64-byte Schnorr signature
- msg is a 32-byte message
"""
assert len(key) == 32
assert len(msg) == 32
assert len(sig) == 64
x_coord = int.from_bytes(key, 'big')
if x_coord == 0 or x_coord >= SECP256K1_FIELD_SIZE:
return False
P = SECP256K1.lift_x(x_coord)
if P is None:
return False
r = int.from_bytes(sig[0:32], 'big')
if r >= SECP256K1_FIELD_SIZE:
return False
s = int.from_bytes(sig[32:64], 'big')
if s >= SECP256K1_ORDER:
return False
e = int.from_bytes(TaggedHash("BIP0340/challenge", sig[0:32] + key + msg), 'big') % SECP256K1_ORDER
R = SECP256K1.mul([(SECP256K1_G, s), (P, SECP256K1_ORDER - e)])
if not SECP256K1.has_even_y(R):
return False
if ((r * R[2] * R[2]) % SECP256K1_FIELD_SIZE) != R[0]:
return False
return True
def sign_schnorr(key, msg, aux=None, flip_p=False, flip_r=False):
"""Create a Schnorr signature (see BIP 340)."""
if aux is None:
aux = bytes(32)
assert len(key) == 32
assert len(msg) == 32
assert len(aux) == 32
sec = int.from_bytes(key, 'big')
if sec == 0 or sec >= SECP256K1_ORDER:
return None
P = SECP256K1.affine(SECP256K1.mul([(SECP256K1_G, sec)]))
if SECP256K1.has_even_y(P) == flip_p:
sec = SECP256K1_ORDER - sec
t = (sec ^ int.from_bytes(TaggedHash("BIP0340/aux", aux), 'big')).to_bytes(32, 'big')
kp = int.from_bytes(TaggedHash("BIP0340/nonce", t + P[0].to_bytes(32, 'big') + msg), 'big') % SECP256K1_ORDER
assert kp != 0
R = SECP256K1.affine(SECP256K1.mul([(SECP256K1_G, kp)]))
k = kp if SECP256K1.has_even_y(R) != flip_r else SECP256K1_ORDER - kp
e = int.from_bytes(TaggedHash("BIP0340/challenge", R[0].to_bytes(32, 'big') + P[0].to_bytes(32, 'big') + msg), 'big') % SECP256K1_ORDER
return R[0].to_bytes(32, 'big') + ((k + e * sec) % SECP256K1_ORDER).to_bytes(32, 'big')
class TestFrameworkKey(unittest.TestCase):
def test_schnorr(self):
"""Test the Python Schnorr implementation."""
byte_arrays = [generate_privkey() for _ in range(3)] + [v.to_bytes(32, 'big') for v in [0, SECP256K1_ORDER - 1, SECP256K1_ORDER, 2**256 - 1]]
keys = {}
for privkey in byte_arrays: # build array of key/pubkey pairs
pubkey, _ = compute_xonly_pubkey(privkey)
if pubkey is not None:
keys[privkey] = pubkey
for msg in byte_arrays: # test every combination of message, signing key, verification key
for sign_privkey, _ in keys.items():
sig = sign_schnorr(sign_privkey, msg)
for verify_privkey, verify_pubkey in keys.items():
if verify_privkey == sign_privkey:
self.assertTrue(verify_schnorr(verify_pubkey, sig, msg))
sig = list(sig)
sig[random.randrange(64)] ^= (1 << (random.randrange(8))) # damaging signature should break things
sig = bytes(sig)
self.assertFalse(verify_schnorr(verify_pubkey, sig, msg))
def test_schnorr_testvectors(self):
"""Implement the BIP340 test vectors (read from bip340_test_vectors.csv)."""
num_tests = 0
vectors_file = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'bip340_test_vectors.csv')
with open(vectors_file, newline='', encoding='utf8') as csvfile:
reader = csv.reader(csvfile)
next(reader)
for row in reader:
(i_str, seckey_hex, pubkey_hex, aux_rand_hex, msg_hex, sig_hex, result_str, comment) = row
i = int(i_str)
pubkey = bytes.fromhex(pubkey_hex)
msg = bytes.fromhex(msg_hex)
sig = bytes.fromhex(sig_hex)
result = result_str == 'TRUE'
if seckey_hex != '':
seckey = bytes.fromhex(seckey_hex)
pubkey_actual = compute_xonly_pubkey(seckey)[0]
self.assertEqual(pubkey.hex(), pubkey_actual.hex(), "BIP340 test vector %i (%s): pubkey mismatch" % (i, comment))
aux_rand = bytes.fromhex(aux_rand_hex)
try:
sig_actual = sign_schnorr(seckey, msg, aux_rand)
self.assertEqual(sig.hex(), sig_actual.hex(), "BIP340 test vector %i (%s): sig mismatch" % (i, comment))
except RuntimeError as e:
self.fail("BIP340 test vector %i (%s): signing raised exception %s" % (i, comment, e))
result_actual = verify_schnorr(pubkey, sig, msg)
if result:
self.assertEqual(result, result_actual, "BIP340 test vector %i (%s): verification failed" % (i, comment))
else:
self.assertEqual(result, result_actual, "BIP340 test vector %i (%s): verification succeeded unexpectedly" % (i, comment))
num_tests += 1
self.assertTrue(num_tests >= 15) # expect at least 15 test vectors

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# Copyright (c) 2020 Pieter Wuille
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Native Python MuHash3072 implementation."""
import hashlib
import unittest
from .util import modinv
def rot32(v, bits):
"""Rotate the 32-bit value v left by bits bits."""
bits %= 32 # Make sure the term below does not throw an exception
return ((v << bits) & 0xffffffff) | (v >> (32 - bits))
def chacha20_doubleround(s):
"""Apply a ChaCha20 double round to 16-element state array s.
See https://cr.yp.to/chacha/chacha-20080128.pdf and https://tools.ietf.org/html/rfc8439
"""
QUARTER_ROUNDS = [(0, 4, 8, 12),
(1, 5, 9, 13),
(2, 6, 10, 14),
(3, 7, 11, 15),
(0, 5, 10, 15),
(1, 6, 11, 12),
(2, 7, 8, 13),
(3, 4, 9, 14)]
for a, b, c, d in QUARTER_ROUNDS:
s[a] = (s[a] + s[b]) & 0xffffffff
s[d] = rot32(s[d] ^ s[a], 16)
s[c] = (s[c] + s[d]) & 0xffffffff
s[b] = rot32(s[b] ^ s[c], 12)
s[a] = (s[a] + s[b]) & 0xffffffff
s[d] = rot32(s[d] ^ s[a], 8)
s[c] = (s[c] + s[d]) & 0xffffffff
s[b] = rot32(s[b] ^ s[c], 7)
def chacha20_32_to_384(key32):
"""Specialized ChaCha20 implementation with 32-byte key, 0 IV, 384-byte output."""
# See RFC 8439 section 2.3 for chacha20 parameters
CONSTANTS = [0x61707865, 0x3320646e, 0x79622d32, 0x6b206574]
key_bytes = [0]*8
for i in range(8):
key_bytes[i] = int.from_bytes(key32[(4 * i):(4 * (i+1))], 'little')
INITIALIZATION_VECTOR = [0] * 4
init = CONSTANTS + key_bytes + INITIALIZATION_VECTOR
out = bytearray()
for counter in range(6):
init[12] = counter
s = init.copy()
for _ in range(10):
chacha20_doubleround(s)
for i in range(16):
out.extend(((s[i] + init[i]) & 0xffffffff).to_bytes(4, 'little'))
return bytes(out)
def data_to_num3072(data):
"""Hash a 32-byte array data to a 3072-bit number using 6 Chacha20 operations."""
bytes384 = chacha20_32_to_384(data)
return int.from_bytes(bytes384, 'little')
class MuHash3072:
"""Class representing the MuHash3072 computation of a set.
See https://cseweb.ucsd.edu/~mihir/papers/inchash.pdf and https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-May/014337.html
"""
MODULUS = 2**3072 - 1103717
def __init__(self):
"""Initialize for an empty set."""
self.numerator = 1
self.denominator = 1
def insert(self, data):
"""Insert a byte array data in the set."""
data_hash = hashlib.sha256(data).digest()
self.numerator = (self.numerator * data_to_num3072(data_hash)) % self.MODULUS
def remove(self, data):
"""Remove a byte array from the set."""
data_hash = hashlib.sha256(data).digest()
self.denominator = (self.denominator * data_to_num3072(data_hash)) % self.MODULUS
def digest(self):
"""Extract the final hash. Does not modify this object."""
val = (self.numerator * modinv(self.denominator, self.MODULUS)) % self.MODULUS
bytes384 = val.to_bytes(384, 'little')
return hashlib.sha256(bytes384).digest()
class TestFrameworkMuhash(unittest.TestCase):
def test_muhash(self):
muhash = MuHash3072()
muhash.insert(b'\x00' * 32)
muhash.insert((b'\x01' + b'\x00' * 31))
muhash.remove((b'\x02' + b'\x00' * 31))
finalized = muhash.digest()
# This mirrors the result in the C++ MuHash3072 unit test
self.assertEqual(finalized[::-1].hex(), "10d312b100cbd32ada024a6646e40d3482fcff103668d2625f10002a607d5863")
def test_chacha20(self):
def chacha_check(key, result):
self.assertEqual(chacha20_32_to_384(key)[:64].hex(), result)
# Test vectors from https://tools.ietf.org/html/draft-agl-tls-chacha20poly1305-04#section-7
# Since the nonce is hardcoded to 0 in our function we only use those vectors.
chacha_check([0]*32, "76b8e0ada0f13d90405d6ae55386bd28bdd219b8a08ded1aa836efcc8b770dc7da41597c5157488d7724e03fb8d84a376a43b8f41518a11cc387b669b2ee6586")
chacha_check([0]*31 + [1], "4540f05a9f1fb296d7736e7b208e3c96eb4fe1834688d2604f450952ed432d41bbe2a0b6ea7566d2a5d1e7e20d42af2c53d792b1c43fea817e9ad275ae546963")

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#!/usr/bin/env python3
# Copyright (c) 2014-2021 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Linux network utilities.
Roughly based on http://voorloopnul.com/blog/a-python-netstat-in-less-than-100-lines-of-code/ by Ricardo Pascal
"""
import sys
import socket
import struct
import array
import os
# STATE_ESTABLISHED = '01'
# STATE_SYN_SENT = '02'
# STATE_SYN_RECV = '03'
# STATE_FIN_WAIT1 = '04'
# STATE_FIN_WAIT2 = '05'
# STATE_TIME_WAIT = '06'
# STATE_CLOSE = '07'
# STATE_CLOSE_WAIT = '08'
# STATE_LAST_ACK = '09'
STATE_LISTEN = '0A'
# STATE_CLOSING = '0B'
def get_socket_inodes(pid):
'''
Get list of socket inodes for process pid.
'''
base = '/proc/%i/fd' % pid
inodes = []
for item in os.listdir(base):
target = os.readlink(os.path.join(base, item))
if target.startswith('socket:'):
inodes.append(int(target[8:-1]))
return inodes
def _remove_empty(array):
return [x for x in array if x !='']
def _convert_ip_port(array):
host,port = array.split(':')
# convert host from mangled-per-four-bytes form as used by kernel
host = bytes.fromhex(host)
host_out = ''
for x in range(0, len(host) // 4):
(val,) = struct.unpack('=I', host[x*4:(x+1)*4])
host_out += '%08x' % val
return host_out,int(port,16)
def netstat(typ='tcp'):
'''
Function to return a list with status of tcp connections at linux systems
To get pid of all network process running on system, you must run this script
as superuser
'''
with open('/proc/net/'+typ,'r',encoding='utf8') as f:
content = f.readlines()
content.pop(0)
result = []
for line in content:
line_array = _remove_empty(line.split(' ')) # Split lines and remove empty spaces.
tcp_id = line_array[0]
l_addr = _convert_ip_port(line_array[1])
r_addr = _convert_ip_port(line_array[2])
state = line_array[3]
inode = int(line_array[9]) # Need the inode to match with process pid.
nline = [tcp_id, l_addr, r_addr, state, inode]
result.append(nline)
return result
def get_bind_addrs(pid):
'''
Get bind addresses as (host,port) tuples for process pid.
'''
inodes = get_socket_inodes(pid)
bind_addrs = []
for conn in netstat('tcp') + netstat('tcp6'):
if conn[3] == STATE_LISTEN and conn[4] in inodes:
bind_addrs.append(conn[1])
return bind_addrs
# from: https://code.activestate.com/recipes/439093/
def all_interfaces():
'''
Return all interfaces that are up
'''
import fcntl # Linux only, so only import when required
is_64bits = sys.maxsize > 2**32
struct_size = 40 if is_64bits else 32
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
max_possible = 8 # initial value
while True:
bytes = max_possible * struct_size
names = array.array('B', b'\0' * bytes)
outbytes = struct.unpack('iL', fcntl.ioctl(
s.fileno(),
0x8912, # SIOCGIFCONF
struct.pack('iL', bytes, names.buffer_info()[0])
))[0]
if outbytes == bytes:
max_possible *= 2
else:
break
namestr = names.tobytes()
return [(namestr[i:i+16].split(b'\0', 1)[0],
socket.inet_ntoa(namestr[i+20:i+24]))
for i in range(0, outbytes, struct_size)]
def addr_to_hex(addr):
'''
Convert string IPv4 or IPv6 address to binary address as returned by
get_bind_addrs.
Very naive implementation that certainly doesn't work for all IPv6 variants.
'''
if '.' in addr: # IPv4
addr = [int(x) for x in addr.split('.')]
elif ':' in addr: # IPv6
sub = [[], []] # prefix, suffix
x = 0
addr = addr.split(':')
for i,comp in enumerate(addr):
if comp == '':
if i == 0 or i == (len(addr)-1): # skip empty component at beginning or end
continue
x += 1 # :: skips to suffix
assert x < 2
else: # two bytes per component
val = int(comp, 16)
sub[x].append(val >> 8)
sub[x].append(val & 0xff)
nullbytes = 16 - len(sub[0]) - len(sub[1])
assert (x == 0 and nullbytes == 0) or (x == 1 and nullbytes > 0)
addr = sub[0] + ([0] * nullbytes) + sub[1]
else:
raise ValueError('Could not parse address %s' % addr)
return bytearray(addr).hex()
def test_ipv6_local():
'''
Check for (local) IPv6 support.
'''
# By using SOCK_DGRAM this will not actually make a connection, but it will
# fail if there is no route to IPv6 localhost.
have_ipv6 = True
try:
s = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
s.connect(('::1', 1))
except socket.error:
have_ipv6 = False
return have_ipv6

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#!/usr/bin/env python3
# Copyright (c) 2010 ArtForz -- public domain half-a-node
# Copyright (c) 2012 Jeff Garzik
# Copyright (c) 2010-2021 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Test objects for interacting with a bitcoind node over the p2p protocol.
The P2PInterface objects interact with the bitcoind nodes under test using the
node's p2p interface. They can be used to send messages to the node, and
callbacks can be registered that execute when messages are received from the
node. Messages are sent to/received from the node on an asyncio event loop.
State held inside the objects must be guarded by the p2p_lock to avoid data
races between the main testing thread and the event loop.
P2PConnection: A low-level connection object to a node's P2P interface
P2PInterface: A high-level interface object for communicating to a node over P2P
P2PDataStore: A p2p interface class that keeps a store of transactions and blocks
and can respond correctly to getdata and getheaders messages
P2PTxInvStore: A p2p interface class that inherits from P2PDataStore, and keeps
a count of how many times each txid has been announced."""
import asyncio
from collections import defaultdict
from io import BytesIO
import logging
import struct
import sys
import threading
from test_framework.messages import (
CBlockHeader,
MAX_HEADERS_RESULTS,
msg_addr,
msg_addrv2,
msg_block,
MSG_BLOCK,
msg_blocktxn,
msg_cfcheckpt,
msg_cfheaders,
msg_cfilter,
msg_cmpctblock,
msg_feefilter,
msg_filteradd,
msg_filterclear,
msg_filterload,
msg_getaddr,
msg_getblocks,
msg_getblocktxn,
msg_getdata,
msg_getheaders,
msg_headers,
msg_inv,
msg_mempool,
msg_merkleblock,
msg_notfound,
msg_ping,
msg_pong,
msg_sendaddrv2,
msg_sendcmpct,
msg_sendheaders,
msg_tx,
MSG_TX,
MSG_TYPE_MASK,
msg_verack,
msg_version,
MSG_WTX,
msg_wtxidrelay,
NODE_NETWORK,
NODE_WITNESS,
sha256,
)
from test_framework.util import (
MAX_NODES,
p2p_port,
wait_until_helper,
)
logger = logging.getLogger("TestFramework.p2p")
# The minimum P2P version that this test framework supports
MIN_P2P_VERSION_SUPPORTED = 60001
# The P2P version that this test framework implements and sends in its `version` message
# Version 70016 supports wtxid relay
P2P_VERSION = 70016
# The services that this test framework offers in its `version` message
P2P_SERVICES = NODE_NETWORK | NODE_WITNESS
# The P2P user agent string that this test framework sends in its `version` message
P2P_SUBVERSION = "/python-p2p-tester:0.0.3/"
# Value for relay that this test framework sends in its `version` message
P2P_VERSION_RELAY = 1
# Delay after receiving a tx inv before requesting transactions from non-preferred peers, in seconds
NONPREF_PEER_TX_DELAY = 2
MESSAGEMAP = {
b"addr": msg_addr,
b"addrv2": msg_addrv2,
b"block": msg_block,
b"blocktxn": msg_blocktxn,
b"cfcheckpt": msg_cfcheckpt,
b"cfheaders": msg_cfheaders,
b"cfilter": msg_cfilter,
b"cmpctblock": msg_cmpctblock,
b"feefilter": msg_feefilter,
b"filteradd": msg_filteradd,
b"filterclear": msg_filterclear,
b"filterload": msg_filterload,
b"getaddr": msg_getaddr,
b"getblocks": msg_getblocks,
b"getblocktxn": msg_getblocktxn,
b"getdata": msg_getdata,
b"getheaders": msg_getheaders,
b"headers": msg_headers,
b"inv": msg_inv,
b"mempool": msg_mempool,
b"merkleblock": msg_merkleblock,
b"notfound": msg_notfound,
b"ping": msg_ping,
b"pong": msg_pong,
b"sendaddrv2": msg_sendaddrv2,
b"sendcmpct": msg_sendcmpct,
b"sendheaders": msg_sendheaders,
b"tx": msg_tx,
b"verack": msg_verack,
b"version": msg_version,
b"wtxidrelay": msg_wtxidrelay,
}
MAGIC_BYTES = {
"mainnet": b"\xf9\xbe\xb4\xd9", # mainnet
"testnet3": b"\x0b\x11\x09\x07", # testnet3
"regtest": b"\xfa\xbf\xb5\xda", # regtest
"signet": b"\x0a\x03\xcf\x40", # signet
}
class P2PConnection(asyncio.Protocol):
"""A low-level connection object to a node's P2P interface.
This class is responsible for:
- opening and closing the TCP connection to the node
- reading bytes from and writing bytes to the socket
- deserializing and serializing the P2P message header
- logging messages as they are sent and received
This class contains no logic for handing the P2P message payloads. It must be
sub-classed and the on_message() callback overridden."""
def __init__(self):
# The underlying transport of the connection.
# Should only call methods on this from the NetworkThread, c.f. call_soon_threadsafe
self._transport = None
@property
def is_connected(self):
return self._transport is not None
def peer_connect_helper(self, dstaddr, dstport, net, timeout_factor):
assert not self.is_connected
self.timeout_factor = timeout_factor
self.dstaddr = dstaddr
self.dstport = dstport
# The initial message to send after the connection was made:
self.on_connection_send_msg = None
self.recvbuf = b""
self.magic_bytes = MAGIC_BYTES[net]
def peer_connect(self, dstaddr, dstport, *, net, timeout_factor):
self.peer_connect_helper(dstaddr, dstport, net, timeout_factor)
loop = NetworkThread.network_event_loop
logger.debug('Connecting to Bitcoin Node: %s:%d' % (self.dstaddr, self.dstport))
coroutine = loop.create_connection(lambda: self, host=self.dstaddr, port=self.dstport)
return lambda: loop.call_soon_threadsafe(loop.create_task, coroutine)
def peer_accept_connection(self, connect_id, connect_cb=lambda: None, *, net, timeout_factor):
self.peer_connect_helper('0', 0, net, timeout_factor)
logger.debug('Listening for Bitcoin Node with id: {}'.format(connect_id))
return lambda: NetworkThread.listen(self, connect_cb, idx=connect_id)
def peer_disconnect(self):
# Connection could have already been closed by other end.
NetworkThread.network_event_loop.call_soon_threadsafe(lambda: self._transport and self._transport.abort())
# Connection and disconnection methods
def connection_made(self, transport):
"""asyncio callback when a connection is opened."""
assert not self._transport
logger.debug("Connected & Listening: %s:%d" % (self.dstaddr, self.dstport))
self._transport = transport
if self.on_connection_send_msg:
self.send_message(self.on_connection_send_msg)
self.on_connection_send_msg = None # Never used again
self.on_open()
def connection_lost(self, exc):
"""asyncio callback when a connection is closed."""
if exc:
logger.warning("Connection lost to {}:{} due to {}".format(self.dstaddr, self.dstport, exc))
else:
logger.debug("Closed connection to: %s:%d" % (self.dstaddr, self.dstport))
self._transport = None
self.recvbuf = b""
self.on_close()
# Socket read methods
def data_received(self, t):
"""asyncio callback when data is read from the socket."""
if len(t) > 0:
self.recvbuf += t
self._on_data()
def _on_data(self):
"""Try to read P2P messages from the recv buffer.
This method reads data from the buffer in a loop. It deserializes,
parses and verifies the P2P header, then passes the P2P payload to
the on_message callback for processing."""
try:
while True:
if len(self.recvbuf) < 4:
return
if self.recvbuf[:4] != self.magic_bytes:
raise ValueError("magic bytes mismatch: {} != {}".format(repr(self.magic_bytes), repr(self.recvbuf)))
if len(self.recvbuf) < 4 + 12 + 4 + 4:
return
msgtype = 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 msgtype not in MESSAGEMAP:
raise ValueError("Received unknown msgtype from %s:%d: '%s' %s" % (self.dstaddr, self.dstport, msgtype, repr(msg)))
f = BytesIO(msg)
t = MESSAGEMAP[msgtype]()
t.deserialize(f)
self._log_message("receive", t)
self.on_message(t)
except Exception as e:
logger.exception('Error reading message:', repr(e))
raise
def on_message(self, message):
"""Callback for processing a P2P payload. Must be overridden by derived class."""
raise NotImplementedError
# Socket write methods
def send_message(self, message):
"""Send a P2P message over the socket.
This method takes a P2P payload, builds the P2P header and adds
the message to the send buffer to be sent over the socket."""
tmsg = self.build_message(message)
self._log_message("send", message)
return self.send_raw_message(tmsg)
def send_raw_message(self, raw_message_bytes):
if not self.is_connected:
raise IOError('Not connected')
def maybe_write():
if not self._transport:
return
if self._transport.is_closing():
return
self._transport.write(raw_message_bytes)
NetworkThread.network_event_loop.call_soon_threadsafe(maybe_write)
# Class utility methods
def build_message(self, message):
"""Build a serialized P2P message"""
msgtype = message.msgtype
data = message.serialize()
tmsg = self.magic_bytes
tmsg += msgtype
tmsg += b"\x00" * (12 - len(msgtype))
tmsg += struct.pack("<I", len(data))
th = sha256(data)
h = sha256(th)
tmsg += h[:4]
tmsg += data
return tmsg
def _log_message(self, direction, msg):
"""Logs a message being sent or received over the connection."""
if direction == "send":
log_message = "Send message to "
elif direction == "receive":
log_message = "Received message from "
log_message += "%s:%d: %s" % (self.dstaddr, self.dstport, repr(msg)[:500])
if len(log_message) > 500:
log_message += "... (msg truncated)"
logger.debug(log_message)
class P2PInterface(P2PConnection):
"""A high-level P2P interface class for communicating with a Bitcoin node.
This class provides high-level callbacks for processing P2P message
payloads, as well as convenience methods for interacting with the
node over P2P.
Individual testcases should subclass this and override the on_* methods
if they want to alter message handling behaviour."""
def __init__(self, support_addrv2=False, wtxidrelay=True):
super().__init__()
# Track number of messages of each type received.
# Should be read-only in a test.
self.message_count = defaultdict(int)
# Track the most recent message of each type.
# To wait for a message to be received, pop that message from
# this and use self.wait_until.
self.last_message = {}
# A count of the number of ping messages we've sent to the node
self.ping_counter = 1
# The network services received from the peer
self.nServices = 0
self.support_addrv2 = support_addrv2
# If the peer supports wtxid-relay
self.wtxidrelay = wtxidrelay
def peer_connect_send_version(self, services):
# Send a version msg
vt = msg_version()
vt.nVersion = P2P_VERSION
vt.strSubVer = P2P_SUBVERSION
vt.relay = P2P_VERSION_RELAY
vt.nServices = services
vt.addrTo.ip = self.dstaddr
vt.addrTo.port = self.dstport
vt.addrFrom.ip = "0.0.0.0"
vt.addrFrom.port = 0
self.on_connection_send_msg = vt # Will be sent in connection_made callback
def peer_connect(self, *args, services=P2P_SERVICES, send_version=True, **kwargs):
create_conn = super().peer_connect(*args, **kwargs)
if send_version:
self.peer_connect_send_version(services)
return create_conn
def peer_accept_connection(self, *args, services=P2P_SERVICES, **kwargs):
create_conn = super().peer_accept_connection(*args, **kwargs)
self.peer_connect_send_version(services)
return create_conn
# Message receiving methods
def on_message(self, message):
"""Receive message and dispatch message to appropriate callback.
We keep a count of how many of each message type has been received
and the most recent message of each type."""
with p2p_lock:
try:
msgtype = message.msgtype.decode('ascii')
self.message_count[msgtype] += 1
self.last_message[msgtype] = message
getattr(self, 'on_' + msgtype)(message)
except:
print("ERROR delivering %s (%s)" % (repr(message), sys.exc_info()[0]))
raise
# Callback methods. Can be overridden by subclasses in individual test
# cases to provide custom message handling behaviour.
def on_open(self):
pass
def on_close(self):
pass
def on_addr(self, message): pass
def on_addrv2(self, message): pass
def on_block(self, message): pass
def on_blocktxn(self, message): pass
def on_cfcheckpt(self, message): pass
def on_cfheaders(self, message): pass
def on_cfilter(self, message): pass
def on_cmpctblock(self, message): pass
def on_feefilter(self, message): pass
def on_filteradd(self, message): pass
def on_filterclear(self, message): pass
def on_filterload(self, message): pass
def on_getaddr(self, message): pass
def on_getblocks(self, message): pass
def on_getblocktxn(self, message): pass
def on_getdata(self, message): pass
def on_getheaders(self, message): pass
def on_headers(self, message): pass
def on_mempool(self, message): pass
def on_merkleblock(self, message): pass
def on_notfound(self, message): pass
def on_pong(self, message): pass
def on_sendaddrv2(self, message): pass
def on_sendcmpct(self, message): pass
def on_sendheaders(self, message): pass
def on_tx(self, message): pass
def on_wtxidrelay(self, message): pass
def on_inv(self, message):
want = msg_getdata()
for i in message.inv:
if i.type != 0:
want.inv.append(i)
if len(want.inv):
self.send_message(want)
def on_ping(self, message):
self.send_message(msg_pong(message.nonce))
def on_verack(self, message):
pass
def on_version(self, message):
assert message.nVersion >= MIN_P2P_VERSION_SUPPORTED, "Version {} received. Test framework only supports versions greater than {}".format(message.nVersion, MIN_P2P_VERSION_SUPPORTED)
if message.nVersion >= 70016 and self.wtxidrelay:
self.send_message(msg_wtxidrelay())
if self.support_addrv2:
self.send_message(msg_sendaddrv2())
self.send_message(msg_verack())
self.nServices = message.nServices
self.send_message(msg_getaddr())
# Connection helper methods
def wait_until(self, test_function_in, *, timeout=60, check_connected=True):
def test_function():
if check_connected:
assert self.is_connected
return test_function_in()
wait_until_helper(test_function, timeout=timeout, lock=p2p_lock, timeout_factor=self.timeout_factor)
def wait_for_connect(self, timeout=60):
test_function = lambda: self.is_connected
wait_until_helper(test_function, timeout=timeout, lock=p2p_lock)
def wait_for_disconnect(self, timeout=60):
test_function = lambda: not self.is_connected
self.wait_until(test_function, timeout=timeout, check_connected=False)
# Message receiving helper methods
def wait_for_tx(self, txid, timeout=60):
def test_function():
if not self.last_message.get('tx'):
return False
return self.last_message['tx'].tx.rehash() == txid
self.wait_until(test_function, timeout=timeout)
def wait_for_block(self, blockhash, timeout=60):
def test_function():
return self.last_message.get("block") and self.last_message["block"].block.rehash() == blockhash
self.wait_until(test_function, timeout=timeout)
def wait_for_header(self, blockhash, timeout=60):
def test_function():
last_headers = self.last_message.get('headers')
if not last_headers:
return False
return last_headers.headers[0].rehash() == int(blockhash, 16)
self.wait_until(test_function, timeout=timeout)
def wait_for_merkleblock(self, blockhash, timeout=60):
def test_function():
last_filtered_block = self.last_message.get('merkleblock')
if not last_filtered_block:
return False
return last_filtered_block.merkleblock.header.rehash() == int(blockhash, 16)
self.wait_until(test_function, timeout=timeout)
def wait_for_getdata(self, hash_list, timeout=60):
"""Waits for a getdata message.
The object hashes in the inventory vector must match the provided hash_list."""
def test_function():
last_data = self.last_message.get("getdata")
if not last_data:
return False
return [x.hash for x in last_data.inv] == hash_list
self.wait_until(test_function, timeout=timeout)
def wait_for_getheaders(self, timeout=60):
"""Waits for a getheaders message.
Receiving any getheaders message will satisfy the predicate. the last_message["getheaders"]
value must be explicitly cleared before calling this method, or this will return
immediately with success. TODO: change this method to take a hash value and only
return true if the correct block header has been requested."""
def test_function():
return self.last_message.get("getheaders")
self.wait_until(test_function, timeout=timeout)
def wait_for_inv(self, expected_inv, timeout=60):
"""Waits for an INV message and checks that the first inv object in the message was as expected."""
if len(expected_inv) > 1:
raise NotImplementedError("wait_for_inv() will only verify the first inv object")
def test_function():
return self.last_message.get("inv") and \
self.last_message["inv"].inv[0].type == expected_inv[0].type and \
self.last_message["inv"].inv[0].hash == expected_inv[0].hash
self.wait_until(test_function, timeout=timeout)
def wait_for_verack(self, timeout=60):
def test_function():
return "verack" in self.last_message
self.wait_until(test_function, timeout=timeout)
# Message sending helper functions
def send_and_ping(self, message, timeout=60):
self.send_message(message)
self.sync_with_ping(timeout=timeout)
def sync_send_with_ping(self, timeout=60):
"""Ensure SendMessages is called on this connection"""
# Calling sync_with_ping twice requires that the node calls
# `ProcessMessage` twice, and thus ensures `SendMessages` must have
# been called at least once
self.sync_with_ping()
self.sync_with_ping()
def sync_with_ping(self, timeout=60):
"""Ensure ProcessMessages is called on this connection"""
self.send_message(msg_ping(nonce=self.ping_counter))
def test_function():
return self.last_message.get("pong") and self.last_message["pong"].nonce == self.ping_counter
self.wait_until(test_function, timeout=timeout)
self.ping_counter += 1
# One lock for synchronizing all data access between the network event loop (see
# NetworkThread below) and the thread running the test logic. For simplicity,
# P2PConnection acquires this lock whenever delivering a message to a P2PInterface.
# This lock should be acquired in the thread running the test logic to synchronize
# access to any data shared with the P2PInterface or P2PConnection.
p2p_lock = threading.Lock()
class NetworkThread(threading.Thread):
network_event_loop = None
def __init__(self):
super().__init__(name="NetworkThread")
# There is only one event loop and no more than one thread must be created
assert not self.network_event_loop
NetworkThread.listeners = {}
NetworkThread.protos = {}
if sys.platform == 'win32':
asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
NetworkThread.network_event_loop = asyncio.new_event_loop()
def run(self):
"""Start the network thread."""
self.network_event_loop.run_forever()
def close(self, timeout=10):
"""Close the connections and network event loop."""
self.network_event_loop.call_soon_threadsafe(self.network_event_loop.stop)
wait_until_helper(lambda: not self.network_event_loop.is_running(), timeout=timeout)
self.network_event_loop.close()
self.join(timeout)
# Safe to remove event loop.
NetworkThread.network_event_loop = None
@classmethod
def listen(cls, p2p, callback, port=None, addr=None, idx=1):
""" Ensure a listening server is running on the given port, and run the
protocol specified by `p2p` on the next connection to it. Once ready
for connections, call `callback`."""
if port is None:
assert 0 < idx <= MAX_NODES
port = p2p_port(MAX_NODES - idx)
if addr is None:
addr = '127.0.0.1'
coroutine = cls.create_listen_server(addr, port, callback, p2p)
cls.network_event_loop.call_soon_threadsafe(cls.network_event_loop.create_task, coroutine)
@classmethod
async def create_listen_server(cls, addr, port, callback, proto):
def peer_protocol():
"""Returns a function that does the protocol handling for a new
connection. To allow different connections to have different
behaviors, the protocol function is first put in the cls.protos
dict. When the connection is made, the function removes the
protocol function from that dict, and returns it so the event loop
can start executing it."""
response = cls.protos.get((addr, port))
cls.protos[(addr, port)] = None
return response
if (addr, port) not in cls.listeners:
# When creating a listener on a given (addr, port) we only need to
# do it once. If we want different behaviors for different
# connections, we can accomplish this by providing different
# `proto` functions
listener = await cls.network_event_loop.create_server(peer_protocol, addr, port)
logger.debug("Listening server on %s:%d should be started" % (addr, port))
cls.listeners[(addr, port)] = listener
cls.protos[(addr, port)] = proto
callback(addr, port)
class P2PDataStore(P2PInterface):
"""A P2P data store class.
Keeps a block and transaction store and responds correctly to getdata and getheaders requests."""
def __init__(self):
super().__init__()
# store of blocks. key is block hash, value is a CBlock object
self.block_store = {}
self.last_block_hash = ''
# store of txs. key is txid, value is a CTransaction object
self.tx_store = {}
self.getdata_requests = []
def on_getdata(self, message):
"""Check for the tx/block in our stores and if found, reply with an inv message."""
for inv in message.inv:
self.getdata_requests.append(inv.hash)
if (inv.type & MSG_TYPE_MASK) == MSG_TX and inv.hash in self.tx_store.keys():
self.send_message(msg_tx(self.tx_store[inv.hash]))
elif (inv.type & MSG_TYPE_MASK) == MSG_BLOCK and inv.hash in self.block_store.keys():
self.send_message(msg_block(self.block_store[inv.hash]))
else:
logger.debug('getdata message type {} received.'.format(hex(inv.type)))
def on_getheaders(self, message):
"""Search back through our block store for the locator, and reply with a headers message if found."""
locator, hash_stop = message.locator, message.hashstop
# Assume that the most recent block added is the tip
if not self.block_store:
return
headers_list = [self.block_store[self.last_block_hash]]
while headers_list[-1].sha256 not in locator.vHave:
# Walk back through the block store, adding headers to headers_list
# as we go.
prev_block_hash = headers_list[-1].hashPrevBlock
if prev_block_hash in self.block_store:
prev_block_header = CBlockHeader(self.block_store[prev_block_hash])
headers_list.append(prev_block_header)
if prev_block_header.sha256 == hash_stop:
# if this is the hashstop header, stop here
break
else:
logger.debug('block hash {} not found in block store'.format(hex(prev_block_hash)))
break
# Truncate the list if there are too many headers
headers_list = headers_list[:-MAX_HEADERS_RESULTS - 1:-1]
response = msg_headers(headers_list)
if response is not None:
self.send_message(response)
def send_blocks_and_test(self, blocks, node, *, success=True, force_send=False, reject_reason=None, expect_disconnect=False, timeout=60):
"""Send blocks to test node and test whether the tip advances.
- add all blocks to our block_store
- send a headers message for the final block
- the on_getheaders handler will ensure that any getheaders are responded to
- if force_send is False: wait for getdata for each of the blocks. The on_getdata handler will
ensure that any getdata messages are responded to. Otherwise send the full block unsolicited.
- if success is True: assert that the node's tip advances to the most recent block
- if success is False: assert that the node's tip doesn't advance
- if reject_reason is set: assert that the correct reject message is logged"""
with p2p_lock:
for block in blocks:
self.block_store[block.sha256] = block
self.last_block_hash = block.sha256
reject_reason = [reject_reason] if reject_reason else []
with node.assert_debug_log(expected_msgs=reject_reason):
if force_send:
for b in blocks:
self.send_message(msg_block(block=b))
else:
self.send_message(msg_headers([CBlockHeader(block) for block in blocks]))
self.wait_until(
lambda: blocks[-1].sha256 in self.getdata_requests,
timeout=timeout,
check_connected=success,
)
if expect_disconnect:
self.wait_for_disconnect(timeout=timeout)
else:
self.sync_with_ping(timeout=timeout)
if success:
self.wait_until(lambda: node.getbestblockhash() == blocks[-1].hash, timeout=timeout)
else:
assert node.getbestblockhash() != blocks[-1].hash
def send_txs_and_test(self, txs, node, *, success=True, expect_disconnect=False, reject_reason=None):
"""Send txs to test node and test whether they're accepted to the mempool.
- add all txs to our tx_store
- send tx messages for all txs
- if success is True/False: assert that the txs are/are not accepted to the mempool
- if expect_disconnect is True: Skip the sync with ping
- if reject_reason is set: assert that the correct reject message is logged."""
with p2p_lock:
for tx in txs:
self.tx_store[tx.sha256] = tx
reject_reason = [reject_reason] if reject_reason else []
with node.assert_debug_log(expected_msgs=reject_reason):
for tx in txs:
self.send_message(msg_tx(tx))
if expect_disconnect:
self.wait_for_disconnect()
else:
self.sync_with_ping()
raw_mempool = node.getrawmempool()
if success:
# Check that all txs are now in the mempool
for tx in txs:
assert tx.hash in raw_mempool, "{} not found in mempool".format(tx.hash)
else:
# Check that none of the txs are now in the mempool
for tx in txs:
assert tx.hash not in raw_mempool, "{} tx found in mempool".format(tx.hash)
class P2PTxInvStore(P2PInterface):
"""A P2PInterface which stores a count of how many times each txid has been announced."""
def __init__(self):
super().__init__()
self.tx_invs_received = defaultdict(int)
def on_inv(self, message):
super().on_inv(message) # Send getdata in response.
# Store how many times invs have been received for each tx.
for i in message.inv:
if (i.type == MSG_TX) or (i.type == MSG_WTX):
# save txid
self.tx_invs_received[i.hash] += 1
def get_invs(self):
with p2p_lock:
return list(self.tx_invs_received.keys())
def wait_for_broadcast(self, txns, timeout=60):
"""Waits for the txns (list of txids) to complete initial broadcast.
The mempool should mark unbroadcast=False for these transactions.
"""
# Wait until invs have been received (and getdatas sent) for each txid.
self.wait_until(lambda: set(self.tx_invs_received.keys()) == set([int(tx, 16) for tx in txns]), timeout=timeout)
# Flush messages and wait for the getdatas to be processed
self.sync_with_ping()

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miner_imports/test_framework/ripemd160.py Normal file
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# Copyright (c) 2021 Pieter Wuille
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Test-only pure Python RIPEMD160 implementation."""
import unittest
# Message schedule indexes for the left path.
ML = [
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
]
# Message schedule indexes for the right path.
MR = [
5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
]
# Rotation counts for the left path.
RL = [
11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
]
# Rotation counts for the right path.
RR = [
8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
]
# K constants for the left path.
KL = [0, 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xa953fd4e]
# K constants for the right path.
KR = [0x50a28be6, 0x5c4dd124, 0x6d703ef3, 0x7a6d76e9, 0]
def fi(x, y, z, i):
"""The f1, f2, f3, f4, and f5 functions from the specification."""
if i == 0:
return x ^ y ^ z
elif i == 1:
return (x & y) | (~x & z)
elif i == 2:
return (x | ~y) ^ z
elif i == 3:
return (x & z) | (y & ~z)
elif i == 4:
return x ^ (y | ~z)
else:
assert False
def rol(x, i):
"""Rotate the bottom 32 bits of x left by i bits."""
return ((x << i) | ((x & 0xffffffff) >> (32 - i))) & 0xffffffff
def compress(h0, h1, h2, h3, h4, block):
"""Compress state (h0, h1, h2, h3, h4) with block."""
# Left path variables.
al, bl, cl, dl, el = h0, h1, h2, h3, h4
# Right path variables.
ar, br, cr, dr, er = h0, h1, h2, h3, h4
# Message variables.
x = [int.from_bytes(block[4*i:4*(i+1)], 'little') for i in range(16)]
# Iterate over the 80 rounds of the compression.
for j in range(80):
rnd = j >> 4
# Perform left side of the transformation.
al = rol(al + fi(bl, cl, dl, rnd) + x[ML[j]] + KL[rnd], RL[j]) + el
al, bl, cl, dl, el = el, al, bl, rol(cl, 10), dl
# Perform right side of the transformation.
ar = rol(ar + fi(br, cr, dr, 4 - rnd) + x[MR[j]] + KR[rnd], RR[j]) + er
ar, br, cr, dr, er = er, ar, br, rol(cr, 10), dr
# Compose old state, left transform, and right transform into new state.
return h1 + cl + dr, h2 + dl + er, h3 + el + ar, h4 + al + br, h0 + bl + cr
def ripemd160(data):
"""Compute the RIPEMD-160 hash of data."""
# Initialize state.
state = (0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0)
# Process full 64-byte blocks in the input.
for b in range(len(data) >> 6):
state = compress(*state, data[64*b:64*(b+1)])
# Construct final blocks (with padding and size).
pad = b"\x80" + b"\x00" * ((119 - len(data)) & 63)
fin = data[len(data) & ~63:] + pad + (8 * len(data)).to_bytes(8, 'little')
# Process final blocks.
for b in range(len(fin) >> 6):
state = compress(*state, fin[64*b:64*(b+1)])
# Produce output.
return b"".join((h & 0xffffffff).to_bytes(4, 'little') for h in state)
class TestFrameworkKey(unittest.TestCase):
def test_ripemd160(self):
"""RIPEMD-160 test vectors."""
# See https://homes.esat.kuleuven.be/~bosselae/ripemd160.html
for msg, hexout in [
(b"", "9c1185a5c5e9fc54612808977ee8f548b2258d31"),
(b"a", "0bdc9d2d256b3ee9daae347be6f4dc835a467ffe"),
(b"abc", "8eb208f7e05d987a9b044a8e98c6b087f15a0bfc"),
(b"message digest", "5d0689ef49d2fae572b881b123a85ffa21595f36"),
(b"abcdefghijklmnopqrstuvwxyz",
"f71c27109c692c1b56bbdceb5b9d2865b3708dbc"),
(b"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
"12a053384a9c0c88e405a06c27dcf49ada62eb2b"),
(b"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
"b0e20b6e3116640286ed3a87a5713079b21f5189"),
(b"1234567890" * 8, "9b752e45573d4b39f4dbd3323cab82bf63326bfb"),
(b"a" * 1000000, "52783243c1697bdbe16d37f97f68f08325dc1528")
]:
self.assertEqual(ripemd160(msg).hex(), hexout)

898
miner_imports/test_framework/script.py Normal file
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@@ -0,0 +1,898 @@
#!/usr/bin/env python3
# Copyright (c) 2015-2021 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Functionality to build scripts, as well as signature hash functions.
This file is modified from python-bitcoinlib.
"""
from collections import namedtuple
import struct
import unittest
from typing import List, Dict
from .key import TaggedHash, tweak_add_pubkey
from .messages import (
CTransaction,
CTxOut,
hash256,
ser_string,
ser_uint256,
sha256,
uint256_from_str,
)
from .ripemd160 import ripemd160
MAX_SCRIPT_ELEMENT_SIZE = 520
LOCKTIME_THRESHOLD = 500000000
ANNEX_TAG = 0x50
LEAF_VERSION_TAPSCRIPT = 0xc0
def hash160(s):
return ripemd160(sha256(s))
def bn2vch(v):
"""Convert number to bitcoin-specific little endian format."""
# We need v.bit_length() bits, plus a sign bit for every nonzero number.
n_bits = v.bit_length() + (v != 0)
# The number of bytes for that is:
n_bytes = (n_bits + 7) // 8
# Convert number to absolute value + sign in top bit.
encoded_v = 0 if v == 0 else abs(v) | ((v < 0) << (n_bytes * 8 - 1))
# Serialize to bytes
return encoded_v.to_bytes(n_bytes, 'little')
class CScriptOp(int):
"""A single script opcode"""
__slots__ = ()
@staticmethod
def encode_op_pushdata(d):
"""Encode a PUSHDATA op, returning bytes"""
if len(d) < 0x4c:
return b'' + bytes([len(d)]) + d # OP_PUSHDATA
elif len(d) <= 0xff:
return b'\x4c' + bytes([len(d)]) + d # OP_PUSHDATA1
elif len(d) <= 0xffff:
return b'\x4d' + struct.pack(b'<H', len(d)) + d # OP_PUSHDATA2
elif len(d) <= 0xffffffff:
return b'\x4e' + struct.pack(b'<I', len(d)) + d # OP_PUSHDATA4
else:
raise ValueError("Data too long to encode in a PUSHDATA op")
@staticmethod
def encode_op_n(n):
"""Encode a small integer op, returning an opcode"""
if not (0 <= n <= 16):
raise ValueError('Integer must be in range 0 <= n <= 16, got %d' % n)
if n == 0:
return OP_0
else:
return CScriptOp(OP_1 + n - 1)
def decode_op_n(self):
"""Decode a small integer opcode, returning an integer"""
if self == OP_0:
return 0
if not (self == OP_0 or OP_1 <= self <= OP_16):
raise ValueError('op %r is not an OP_N' % self)
return int(self - OP_1 + 1)
def is_small_int(self):
"""Return true if the op pushes a small integer to the stack"""
if 0x51 <= self <= 0x60 or self == 0:
return True
else:
return False
def __str__(self):
return repr(self)
def __repr__(self):
if self in OPCODE_NAMES:
return OPCODE_NAMES[self]
else:
return 'CScriptOp(0x%x)' % self
def __new__(cls, n):
try:
return _opcode_instances[n]
except IndexError:
assert len(_opcode_instances) == n
_opcode_instances.append(super().__new__(cls, n))
return _opcode_instances[n]
OPCODE_NAMES: Dict[CScriptOp, str] = {}
_opcode_instances: List[CScriptOp] = []
# Populate opcode instance table
for n in range(0xff + 1):
CScriptOp(n)
# push value
OP_0 = CScriptOp(0x00)
OP_FALSE = OP_0
OP_PUSHDATA1 = CScriptOp(0x4c)
OP_PUSHDATA2 = CScriptOp(0x4d)
OP_PUSHDATA4 = CScriptOp(0x4e)
OP_1NEGATE = CScriptOp(0x4f)
OP_RESERVED = CScriptOp(0x50)
OP_1 = CScriptOp(0x51)
OP_TRUE = OP_1
OP_2 = CScriptOp(0x52)
OP_3 = CScriptOp(0x53)
OP_4 = CScriptOp(0x54)
OP_5 = CScriptOp(0x55)
OP_6 = CScriptOp(0x56)
OP_7 = CScriptOp(0x57)
OP_8 = CScriptOp(0x58)
OP_9 = CScriptOp(0x59)
OP_10 = CScriptOp(0x5a)
OP_11 = CScriptOp(0x5b)
OP_12 = CScriptOp(0x5c)
OP_13 = CScriptOp(0x5d)
OP_14 = CScriptOp(0x5e)
OP_15 = CScriptOp(0x5f)
OP_16 = CScriptOp(0x60)
# control
OP_NOP = CScriptOp(0x61)
OP_VER = CScriptOp(0x62)
OP_IF = CScriptOp(0x63)
OP_NOTIF = CScriptOp(0x64)
OP_VERIF = CScriptOp(0x65)
OP_VERNOTIF = CScriptOp(0x66)
OP_ELSE = CScriptOp(0x67)
OP_ENDIF = CScriptOp(0x68)
OP_VERIFY = CScriptOp(0x69)
OP_RETURN = CScriptOp(0x6a)
# stack ops
OP_TOALTSTACK = CScriptOp(0x6b)
OP_FROMALTSTACK = CScriptOp(0x6c)
OP_2DROP = CScriptOp(0x6d)
OP_2DUP = CScriptOp(0x6e)
OP_3DUP = CScriptOp(0x6f)
OP_2OVER = CScriptOp(0x70)
OP_2ROT = CScriptOp(0x71)
OP_2SWAP = CScriptOp(0x72)
OP_IFDUP = CScriptOp(0x73)
OP_DEPTH = CScriptOp(0x74)
OP_DROP = CScriptOp(0x75)
OP_DUP = CScriptOp(0x76)
OP_NIP = CScriptOp(0x77)
OP_OVER = CScriptOp(0x78)
OP_PICK = CScriptOp(0x79)
OP_ROLL = CScriptOp(0x7a)
OP_ROT = CScriptOp(0x7b)
OP_SWAP = CScriptOp(0x7c)
OP_TUCK = CScriptOp(0x7d)
# splice ops
OP_CAT = CScriptOp(0x7e)
OP_SUBSTR = CScriptOp(0x7f)
OP_LEFT = CScriptOp(0x80)
OP_RIGHT = CScriptOp(0x81)
OP_SIZE = CScriptOp(0x82)
# bit logic
OP_INVERT = CScriptOp(0x83)
OP_AND = CScriptOp(0x84)
OP_OR = CScriptOp(0x85)
OP_XOR = CScriptOp(0x86)
OP_EQUAL = CScriptOp(0x87)
OP_EQUALVERIFY = CScriptOp(0x88)
OP_RESERVED1 = CScriptOp(0x89)
OP_RESERVED2 = CScriptOp(0x8a)
# numeric
OP_1ADD = CScriptOp(0x8b)
OP_1SUB = CScriptOp(0x8c)
OP_2MUL = CScriptOp(0x8d)
OP_2DIV = CScriptOp(0x8e)
OP_NEGATE = CScriptOp(0x8f)
OP_ABS = CScriptOp(0x90)
OP_NOT = CScriptOp(0x91)
OP_0NOTEQUAL = CScriptOp(0x92)
OP_ADD = CScriptOp(0x93)
OP_SUB = CScriptOp(0x94)
OP_MUL = CScriptOp(0x95)
OP_DIV = CScriptOp(0x96)
OP_MOD = CScriptOp(0x97)
OP_LSHIFT = CScriptOp(0x98)
OP_RSHIFT = CScriptOp(0x99)
OP_BOOLAND = CScriptOp(0x9a)
OP_BOOLOR = CScriptOp(0x9b)
OP_NUMEQUAL = CScriptOp(0x9c)
OP_NUMEQUALVERIFY = CScriptOp(0x9d)
OP_NUMNOTEQUAL = CScriptOp(0x9e)
OP_LESSTHAN = CScriptOp(0x9f)
OP_GREATERTHAN = CScriptOp(0xa0)
OP_LESSTHANOREQUAL = CScriptOp(0xa1)
OP_GREATERTHANOREQUAL = CScriptOp(0xa2)
OP_MIN = CScriptOp(0xa3)
OP_MAX = CScriptOp(0xa4)
OP_WITHIN = CScriptOp(0xa5)
# crypto
OP_RIPEMD160 = CScriptOp(0xa6)
OP_SHA1 = CScriptOp(0xa7)
OP_SHA256 = CScriptOp(0xa8)
OP_HASH160 = CScriptOp(0xa9)
OP_HASH256 = CScriptOp(0xaa)
OP_CODESEPARATOR = CScriptOp(0xab)
OP_CHECKSIG = CScriptOp(0xac)
OP_CHECKSIGVERIFY = CScriptOp(0xad)
OP_CHECKMULTISIG = CScriptOp(0xae)
OP_CHECKMULTISIGVERIFY = CScriptOp(0xaf)
# expansion
OP_NOP1 = CScriptOp(0xb0)
OP_CHECKLOCKTIMEVERIFY = CScriptOp(0xb1)
OP_CHECKSEQUENCEVERIFY = CScriptOp(0xb2)
OP_NOP4 = CScriptOp(0xb3)
OP_NOP5 = CScriptOp(0xb4)
OP_NOP6 = CScriptOp(0xb5)
OP_NOP7 = CScriptOp(0xb6)
OP_NOP8 = CScriptOp(0xb7)
OP_NOP9 = CScriptOp(0xb8)
OP_NOP10 = CScriptOp(0xb9)
# BIP 342 opcodes (Tapscript)
OP_CHECKSIGADD = CScriptOp(0xba)
OP_INVALIDOPCODE = CScriptOp(0xff)
OPCODE_NAMES.update({
OP_0: 'OP_0',
OP_PUSHDATA1: 'OP_PUSHDATA1',
OP_PUSHDATA2: 'OP_PUSHDATA2',
OP_PUSHDATA4: 'OP_PUSHDATA4',
OP_1NEGATE: 'OP_1NEGATE',
OP_RESERVED: 'OP_RESERVED',
OP_1: 'OP_1',
OP_2: 'OP_2',
OP_3: 'OP_3',
OP_4: 'OP_4',
OP_5: 'OP_5',
OP_6: 'OP_6',
OP_7: 'OP_7',
OP_8: 'OP_8',
OP_9: 'OP_9',
OP_10: 'OP_10',
OP_11: 'OP_11',
OP_12: 'OP_12',
OP_13: 'OP_13',
OP_14: 'OP_14',
OP_15: 'OP_15',
OP_16: 'OP_16',
OP_NOP: 'OP_NOP',
OP_VER: 'OP_VER',
OP_IF: 'OP_IF',
OP_NOTIF: 'OP_NOTIF',
OP_VERIF: 'OP_VERIF',
OP_VERNOTIF: 'OP_VERNOTIF',
OP_ELSE: 'OP_ELSE',
OP_ENDIF: 'OP_ENDIF',
OP_VERIFY: 'OP_VERIFY',
OP_RETURN: 'OP_RETURN',
OP_TOALTSTACK: 'OP_TOALTSTACK',
OP_FROMALTSTACK: 'OP_FROMALTSTACK',
OP_2DROP: 'OP_2DROP',
OP_2DUP: 'OP_2DUP',
OP_3DUP: 'OP_3DUP',
OP_2OVER: 'OP_2OVER',
OP_2ROT: 'OP_2ROT',
OP_2SWAP: 'OP_2SWAP',
OP_IFDUP: 'OP_IFDUP',
OP_DEPTH: 'OP_DEPTH',
OP_DROP: 'OP_DROP',
OP_DUP: 'OP_DUP',
OP_NIP: 'OP_NIP',
OP_OVER: 'OP_OVER',
OP_PICK: 'OP_PICK',
OP_ROLL: 'OP_ROLL',
OP_ROT: 'OP_ROT',
OP_SWAP: 'OP_SWAP',
OP_TUCK: 'OP_TUCK',
OP_CAT: 'OP_CAT',
OP_SUBSTR: 'OP_SUBSTR',
OP_LEFT: 'OP_LEFT',
OP_RIGHT: 'OP_RIGHT',
OP_SIZE: 'OP_SIZE',
OP_INVERT: 'OP_INVERT',
OP_AND: 'OP_AND',
OP_OR: 'OP_OR',
OP_XOR: 'OP_XOR',
OP_EQUAL: 'OP_EQUAL',
OP_EQUALVERIFY: 'OP_EQUALVERIFY',
OP_RESERVED1: 'OP_RESERVED1',
OP_RESERVED2: 'OP_RESERVED2',
OP_1ADD: 'OP_1ADD',
OP_1SUB: 'OP_1SUB',
OP_2MUL: 'OP_2MUL',
OP_2DIV: 'OP_2DIV',
OP_NEGATE: 'OP_NEGATE',
OP_ABS: 'OP_ABS',
OP_NOT: 'OP_NOT',
OP_0NOTEQUAL: 'OP_0NOTEQUAL',
OP_ADD: 'OP_ADD',
OP_SUB: 'OP_SUB',
OP_MUL: 'OP_MUL',
OP_DIV: 'OP_DIV',
OP_MOD: 'OP_MOD',
OP_LSHIFT: 'OP_LSHIFT',
OP_RSHIFT: 'OP_RSHIFT',
OP_BOOLAND: 'OP_BOOLAND',
OP_BOOLOR: 'OP_BOOLOR',
OP_NUMEQUAL: 'OP_NUMEQUAL',
OP_NUMEQUALVERIFY: 'OP_NUMEQUALVERIFY',
OP_NUMNOTEQUAL: 'OP_NUMNOTEQUAL',
OP_LESSTHAN: 'OP_LESSTHAN',
OP_GREATERTHAN: 'OP_GREATERTHAN',
OP_LESSTHANOREQUAL: 'OP_LESSTHANOREQUAL',
OP_GREATERTHANOREQUAL: 'OP_GREATERTHANOREQUAL',
OP_MIN: 'OP_MIN',
OP_MAX: 'OP_MAX',
OP_WITHIN: 'OP_WITHIN',
OP_RIPEMD160: 'OP_RIPEMD160',
OP_SHA1: 'OP_SHA1',
OP_SHA256: 'OP_SHA256',
OP_HASH160: 'OP_HASH160',
OP_HASH256: 'OP_HASH256',
OP_CODESEPARATOR: 'OP_CODESEPARATOR',
OP_CHECKSIG: 'OP_CHECKSIG',
OP_CHECKSIGVERIFY: 'OP_CHECKSIGVERIFY',
OP_CHECKMULTISIG: 'OP_CHECKMULTISIG',
OP_CHECKMULTISIGVERIFY: 'OP_CHECKMULTISIGVERIFY',
OP_NOP1: 'OP_NOP1',
OP_CHECKLOCKTIMEVERIFY: 'OP_CHECKLOCKTIMEVERIFY',
OP_CHECKSEQUENCEVERIFY: 'OP_CHECKSEQUENCEVERIFY',
OP_NOP4: 'OP_NOP4',
OP_NOP5: 'OP_NOP5',
OP_NOP6: 'OP_NOP6',
OP_NOP7: 'OP_NOP7',
OP_NOP8: 'OP_NOP8',
OP_NOP9: 'OP_NOP9',
OP_NOP10: 'OP_NOP10',
OP_CHECKSIGADD: 'OP_CHECKSIGADD',
OP_INVALIDOPCODE: 'OP_INVALIDOPCODE',
})
class CScriptInvalidError(Exception):
"""Base class for CScript exceptions"""
pass
class CScriptTruncatedPushDataError(CScriptInvalidError):
"""Invalid pushdata due to truncation"""
def __init__(self, msg, data):
self.data = data
super().__init__(msg)
# This is used, eg, for blockchain heights in coinbase scripts (bip34)
class CScriptNum:
__slots__ = ("value",)
def __init__(self, d=0):
self.value = d
@staticmethod
def encode(obj):
r = bytearray(0)
if obj.value == 0:
return bytes(r)
neg = obj.value < 0
absvalue = -obj.value if neg else obj.value
while (absvalue):
r.append(absvalue & 0xff)
absvalue >>= 8
if r[-1] & 0x80:
r.append(0x80 if neg else 0)
elif neg:
r[-1] |= 0x80
return bytes([len(r)]) + r
@staticmethod
def decode(vch):
result = 0
# We assume valid push_size and minimal encoding
value = vch[1:]
if len(value) == 0:
return result
for i, byte in enumerate(value):
result |= int(byte) << 8 * i
if value[-1] >= 0x80:
# Mask for all but the highest result bit
num_mask = (2**(len(value) * 8) - 1) >> 1
result &= num_mask
result *= -1
return result
class CScript(bytes):
"""Serialized script
A bytes subclass, so you can use this directly whenever bytes are accepted.
Note that this means that indexing does *not* work - you'll get an index by
byte rather than opcode. This format was chosen for efficiency so that the
general case would not require creating a lot of little CScriptOP objects.
iter(script) however does iterate by opcode.
"""
__slots__ = ()
@classmethod
def __coerce_instance(cls, other):
# Coerce other into bytes
if isinstance(other, CScriptOp):
other = bytes([other])
elif isinstance(other, CScriptNum):
if (other.value == 0):
other = bytes([CScriptOp(OP_0)])
else:
other = CScriptNum.encode(other)
elif isinstance(other, int):
if 0 <= other <= 16:
other = bytes([CScriptOp.encode_op_n(other)])
elif other == -1:
other = bytes([OP_1NEGATE])
else:
other = CScriptOp.encode_op_pushdata(bn2vch(other))
elif isinstance(other, (bytes, bytearray)):
other = CScriptOp.encode_op_pushdata(other)
return other
def __add__(self, other):
# add makes no sense for a CScript()
raise NotImplementedError
def join(self, iterable):
# join makes no sense for a CScript()
raise NotImplementedError
def __new__(cls, value=b''):
if isinstance(value, bytes) or isinstance(value, bytearray):
return super().__new__(cls, value)
else:
def coerce_iterable(iterable):
for instance in iterable:
yield cls.__coerce_instance(instance)
# Annoyingly on both python2 and python3 bytes.join() always
# returns a bytes instance even when subclassed.
return super().__new__(cls, b''.join(coerce_iterable(value)))
def raw_iter(self):
"""Raw iteration
Yields tuples of (opcode, data, sop_idx) so that the different possible
PUSHDATA encodings can be accurately distinguished, as well as
determining the exact opcode byte indexes. (sop_idx)
"""
i = 0
while i < len(self):
sop_idx = i
opcode = self[i]
i += 1
if opcode > OP_PUSHDATA4:
yield (opcode, None, sop_idx)
else:
datasize = None
pushdata_type = None
if opcode < OP_PUSHDATA1:
pushdata_type = 'PUSHDATA(%d)' % opcode
datasize = opcode
elif opcode == OP_PUSHDATA1:
pushdata_type = 'PUSHDATA1'
if i >= len(self):
raise CScriptInvalidError('PUSHDATA1: missing data length')
datasize = self[i]
i += 1
elif opcode == OP_PUSHDATA2:
pushdata_type = 'PUSHDATA2'
if i + 1 >= len(self):
raise CScriptInvalidError('PUSHDATA2: missing data length')
datasize = self[i] + (self[i + 1] << 8)
i += 2
elif opcode == OP_PUSHDATA4:
pushdata_type = 'PUSHDATA4'
if i + 3 >= len(self):
raise CScriptInvalidError('PUSHDATA4: missing data length')
datasize = self[i] + (self[i + 1] << 8) + (self[i + 2] << 16) + (self[i + 3] << 24)
i += 4
else:
assert False # shouldn't happen
data = bytes(self[i:i + datasize])
# Check for truncation
if len(data) < datasize:
raise CScriptTruncatedPushDataError('%s: truncated data' % pushdata_type, data)
i += datasize
yield (opcode, data, sop_idx)
def __iter__(self):
"""'Cooked' iteration
Returns either a CScriptOP instance, an integer, or bytes, as
appropriate.
See raw_iter() if you need to distinguish the different possible
PUSHDATA encodings.
"""
for (opcode, data, sop_idx) in self.raw_iter():
if data is not None:
yield data
else:
opcode = CScriptOp(opcode)
if opcode.is_small_int():
yield opcode.decode_op_n()
else:
yield CScriptOp(opcode)
def __repr__(self):
def _repr(o):
if isinstance(o, bytes):
return "x('%s')" % o.hex()
else:
return repr(o)
ops = []
i = iter(self)
while True:
op = None
try:
op = _repr(next(i))
except CScriptTruncatedPushDataError as err:
op = '%s...<ERROR: %s>' % (_repr(err.data), err)
break
except CScriptInvalidError as err:
op = '<ERROR: %s>' % err
break
except StopIteration:
break
finally:
if op is not None:
ops.append(op)
return "CScript([%s])" % ', '.join(ops)
def GetSigOpCount(self, fAccurate):
"""Get the SigOp count.
fAccurate - Accurately count CHECKMULTISIG, see BIP16 for details.
Note that this is consensus-critical.
"""
n = 0
lastOpcode = OP_INVALIDOPCODE
for (opcode, data, sop_idx) in self.raw_iter():
if opcode in (OP_CHECKSIG, OP_CHECKSIGVERIFY):
n += 1
elif opcode in (OP_CHECKMULTISIG, OP_CHECKMULTISIGVERIFY):
if fAccurate and (OP_1 <= lastOpcode <= OP_16):
n += opcode.decode_op_n()
else:
n += 20
lastOpcode = opcode
return n
SIGHASH_DEFAULT = 0 # Taproot-only default, semantics same as SIGHASH_ALL
SIGHASH_ALL = 1
SIGHASH_NONE = 2
SIGHASH_SINGLE = 3
SIGHASH_ANYONECANPAY = 0x80
def FindAndDelete(script, sig):
"""Consensus critical, see FindAndDelete() in Satoshi codebase"""
r = b''
last_sop_idx = sop_idx = 0
skip = True
for (opcode, data, sop_idx) in script.raw_iter():
if not skip:
r += script[last_sop_idx:sop_idx]
last_sop_idx = sop_idx
if script[sop_idx:sop_idx + len(sig)] == sig:
skip = True
else:
skip = False
if not skip:
r += script[last_sop_idx:]
return CScript(r)
def LegacySignatureMsg(script, txTo, inIdx, hashtype):
"""Preimage of the signature hash, if it exists.
Returns either (None, err) to indicate error (which translates to sighash 1),
or (msg, None).
"""
if inIdx >= len(txTo.vin):
return (None, "inIdx %d out of range (%d)" % (inIdx, len(txTo.vin)))
txtmp = CTransaction(txTo)
for txin in txtmp.vin:
txin.scriptSig = b''
txtmp.vin[inIdx].scriptSig = FindAndDelete(script, CScript([OP_CODESEPARATOR]))
if (hashtype & 0x1f) == SIGHASH_NONE:
txtmp.vout = []
for i in range(len(txtmp.vin)):
if i != inIdx:
txtmp.vin[i].nSequence = 0
elif (hashtype & 0x1f) == SIGHASH_SINGLE:
outIdx = inIdx
if outIdx >= len(txtmp.vout):
return (None, "outIdx %d out of range (%d)" % (outIdx, len(txtmp.vout)))
tmp = txtmp.vout[outIdx]
txtmp.vout = []
for _ in range(outIdx):
txtmp.vout.append(CTxOut(-1))
txtmp.vout.append(tmp)
for i in range(len(txtmp.vin)):
if i != inIdx:
txtmp.vin[i].nSequence = 0
if hashtype & SIGHASH_ANYONECANPAY:
tmp = txtmp.vin[inIdx]
txtmp.vin = []
txtmp.vin.append(tmp)
s = txtmp.serialize_without_witness()
s += struct.pack(b"<I", hashtype)
return (s, None)
def LegacySignatureHash(*args, **kwargs):
"""Consensus-correct SignatureHash
Returns (hash, err) to precisely match the consensus-critical behavior of
the SIGHASH_SINGLE bug. (inIdx is *not* checked for validity)
"""
HASH_ONE = b'\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
msg, err = LegacySignatureMsg(*args, **kwargs)
if msg is None:
return (HASH_ONE, err)
else:
return (hash256(msg), err)
# TODO: Allow cached hashPrevouts/hashSequence/hashOutputs to be provided.
# Performance optimization probably not necessary for python tests, however.
# Note that this corresponds to sigversion == 1 in EvalScript, which is used
# for version 0 witnesses.
def SegwitV0SignatureMsg(script, txTo, inIdx, hashtype, amount):
hashPrevouts = 0
hashSequence = 0
hashOutputs = 0
if not (hashtype & SIGHASH_ANYONECANPAY):
serialize_prevouts = bytes()
for i in txTo.vin:
serialize_prevouts += i.prevout.serialize()
hashPrevouts = uint256_from_str(hash256(serialize_prevouts))
if (not (hashtype & SIGHASH_ANYONECANPAY) and (hashtype & 0x1f) != SIGHASH_SINGLE and (hashtype & 0x1f) != SIGHASH_NONE):
serialize_sequence = bytes()
for i in txTo.vin:
serialize_sequence += struct.pack("<I", i.nSequence)
hashSequence = uint256_from_str(hash256(serialize_sequence))
if ((hashtype & 0x1f) != SIGHASH_SINGLE and (hashtype & 0x1f) != SIGHASH_NONE):
serialize_outputs = bytes()
for o in txTo.vout:
serialize_outputs += o.serialize()
hashOutputs = uint256_from_str(hash256(serialize_outputs))
elif ((hashtype & 0x1f) == SIGHASH_SINGLE and inIdx < len(txTo.vout)):
serialize_outputs = txTo.vout[inIdx].serialize()
hashOutputs = uint256_from_str(hash256(serialize_outputs))
ss = bytes()
ss += struct.pack("<i", txTo.nVersion)
ss += ser_uint256(hashPrevouts)
ss += ser_uint256(hashSequence)
ss += txTo.vin[inIdx].prevout.serialize()
ss += ser_string(script)
ss += struct.pack("<q", amount)
ss += struct.pack("<I", txTo.vin[inIdx].nSequence)
ss += ser_uint256(hashOutputs)
ss += struct.pack("<i", txTo.nLockTime)
ss += struct.pack("<I", hashtype)
return ss
def SegwitV0SignatureHash(*args, **kwargs):
return hash256(SegwitV0SignatureMsg(*args, **kwargs))
class TestFrameworkScript(unittest.TestCase):
def test_bn2vch(self):
self.assertEqual(bn2vch(0), bytes([]))
self.assertEqual(bn2vch(1), bytes([0x01]))
self.assertEqual(bn2vch(-1), bytes([0x81]))
self.assertEqual(bn2vch(0x7F), bytes([0x7F]))
self.assertEqual(bn2vch(-0x7F), bytes([0xFF]))
self.assertEqual(bn2vch(0x80), bytes([0x80, 0x00]))
self.assertEqual(bn2vch(-0x80), bytes([0x80, 0x80]))
self.assertEqual(bn2vch(0xFF), bytes([0xFF, 0x00]))
self.assertEqual(bn2vch(-0xFF), bytes([0xFF, 0x80]))
self.assertEqual(bn2vch(0x100), bytes([0x00, 0x01]))
self.assertEqual(bn2vch(-0x100), bytes([0x00, 0x81]))
self.assertEqual(bn2vch(0x7FFF), bytes([0xFF, 0x7F]))
self.assertEqual(bn2vch(-0x8000), bytes([0x00, 0x80, 0x80]))
self.assertEqual(bn2vch(-0x7FFFFF), bytes([0xFF, 0xFF, 0xFF]))
self.assertEqual(bn2vch(0x80000000), bytes([0x00, 0x00, 0x00, 0x80, 0x00]))
self.assertEqual(bn2vch(-0x80000000), bytes([0x00, 0x00, 0x00, 0x80, 0x80]))
self.assertEqual(bn2vch(0xFFFFFFFF), bytes([0xFF, 0xFF, 0xFF, 0xFF, 0x00]))
self.assertEqual(bn2vch(123456789), bytes([0x15, 0xCD, 0x5B, 0x07]))
self.assertEqual(bn2vch(-54321), bytes([0x31, 0xD4, 0x80]))
def test_cscriptnum_encoding(self):
# round-trip negative and multi-byte CScriptNums
values = [0, 1, -1, -2, 127, 128, -255, 256, (1 << 15) - 1, -(1 << 16), (1 << 24) - 1, (1 << 31), 1 - (1 << 32), 1 << 40, 1500, -1500]
for value in values:
self.assertEqual(CScriptNum.decode(CScriptNum.encode(CScriptNum(value))), value)
def BIP341_sha_prevouts(txTo):
return sha256(b"".join(i.prevout.serialize() for i in txTo.vin))
def BIP341_sha_amounts(spent_utxos):
return sha256(b"".join(struct.pack("<q", u.nValue) for u in spent_utxos))
def BIP341_sha_scriptpubkeys(spent_utxos):
return sha256(b"".join(ser_string(u.scriptPubKey) for u in spent_utxos))
def BIP341_sha_sequences(txTo):
return sha256(b"".join(struct.pack("<I", i.nSequence) for i in txTo.vin))
def BIP341_sha_outputs(txTo):
return sha256(b"".join(o.serialize() for o in txTo.vout))
def TaprootSignatureMsg(txTo, spent_utxos, hash_type, input_index = 0, scriptpath = False, script = CScript(), codeseparator_pos = -1, annex = None, leaf_ver = LEAF_VERSION_TAPSCRIPT):
assert (len(txTo.vin) == len(spent_utxos))
assert (input_index < len(txTo.vin))
out_type = SIGHASH_ALL if hash_type == 0 else hash_type & 3
in_type = hash_type & SIGHASH_ANYONECANPAY
spk = spent_utxos[input_index].scriptPubKey
ss = bytes([0, hash_type]) # epoch, hash_type
ss += struct.pack("<i", txTo.nVersion)
ss += struct.pack("<I", txTo.nLockTime)
if in_type != SIGHASH_ANYONECANPAY:
ss += BIP341_sha_prevouts(txTo)
ss += BIP341_sha_amounts(spent_utxos)
ss += BIP341_sha_scriptpubkeys(spent_utxos)
ss += BIP341_sha_sequences(txTo)
if out_type == SIGHASH_ALL:
ss += BIP341_sha_outputs(txTo)
spend_type = 0
if annex is not None:
spend_type |= 1
if (scriptpath):
spend_type |= 2
ss += bytes([spend_type])
if in_type == SIGHASH_ANYONECANPAY:
ss += txTo.vin[input_index].prevout.serialize()
ss += struct.pack("<q", spent_utxos[input_index].nValue)
ss += ser_string(spk)
ss += struct.pack("<I", txTo.vin[input_index].nSequence)
else:
ss += struct.pack("<I", input_index)
if (spend_type & 1):
ss += sha256(ser_string(annex))
if out_type == SIGHASH_SINGLE:
if input_index < len(txTo.vout):
ss += sha256(txTo.vout[input_index].serialize())
else:
ss += bytes(0 for _ in range(32))
if (scriptpath):
ss += TaggedHash("TapLeaf", bytes([leaf_ver]) + ser_string(script))
ss += bytes([0])
ss += struct.pack("<i", codeseparator_pos)
assert len(ss) == 175 - (in_type == SIGHASH_ANYONECANPAY) * 49 - (out_type != SIGHASH_ALL and out_type != SIGHASH_SINGLE) * 32 + (annex is not None) * 32 + scriptpath * 37
return ss
def TaprootSignatureHash(*args, **kwargs):
return TaggedHash("TapSighash", TaprootSignatureMsg(*args, **kwargs))
def taproot_tree_helper(scripts):
if len(scripts) == 0:
return ([], bytes())
if len(scripts) == 1:
# One entry: treat as a leaf
script = scripts[0]
assert(not callable(script))
if isinstance(script, list):
return taproot_tree_helper(script)
assert(isinstance(script, tuple))
version = LEAF_VERSION_TAPSCRIPT
name = script[0]
code = script[1]
if len(script) == 3:
version = script[2]
assert version & 1 == 0
assert isinstance(code, bytes)
h = TaggedHash("TapLeaf", bytes([version]) + ser_string(code))
if name is None:
return ([], h)
return ([(name, version, code, bytes(), h)], h)
elif len(scripts) == 2 and callable(scripts[1]):
# Two entries, and the right one is a function
left, left_h = taproot_tree_helper(scripts[0:1])
right_h = scripts[1](left_h)
left = [(name, version, script, control + right_h, leaf) for name, version, script, control, leaf in left]
right = []
else:
# Two or more entries: descend into each side
split_pos = len(scripts) // 2
left, left_h = taproot_tree_helper(scripts[0:split_pos])
right, right_h = taproot_tree_helper(scripts[split_pos:])
left = [(name, version, script, control + right_h, leaf) for name, version, script, control, leaf in left]
right = [(name, version, script, control + left_h, leaf) for name, version, script, control, leaf in right]
if right_h < left_h:
right_h, left_h = left_h, right_h
h = TaggedHash("TapBranch", left_h + right_h)
return (left + right, h)
# A TaprootInfo object has the following fields:
# - scriptPubKey: the scriptPubKey (witness v1 CScript)
# - internal_pubkey: the internal pubkey (32 bytes)
# - negflag: whether the pubkey in the scriptPubKey was negated from internal_pubkey+tweak*G (bool).
# - tweak: the tweak (32 bytes)
# - leaves: a dict of name -> TaprootLeafInfo objects for all known leaves
# - merkle_root: the script tree's Merkle root, or bytes() if no leaves are present
TaprootInfo = namedtuple("TaprootInfo", "scriptPubKey,internal_pubkey,negflag,tweak,leaves,merkle_root,output_pubkey")
# A TaprootLeafInfo object has the following fields:
# - script: the leaf script (CScript or bytes)
# - version: the leaf version (0xc0 for BIP342 tapscript)
# - merklebranch: the merkle branch to use for this leaf (32*N bytes)
TaprootLeafInfo = namedtuple("TaprootLeafInfo", "script,version,merklebranch,leaf_hash")
def taproot_construct(pubkey, scripts=None):
"""Construct a tree of Taproot spending conditions
pubkey: a 32-byte xonly pubkey for the internal pubkey (bytes)
scripts: a list of items; each item is either:
- a (name, CScript or bytes, leaf version) tuple
- a (name, CScript or bytes) tuple (defaulting to leaf version 0xc0)
- another list of items (with the same structure)
- a list of two items; the first of which is an item itself, and the
second is a function. The function takes as input the Merkle root of the
first item, and produces a (fictitious) partner to hash with.
Returns: a TaprootInfo object
"""
if scripts is None:
scripts = []
ret, h = taproot_tree_helper(scripts)
tweak = TaggedHash("TapTweak", pubkey + h)
tweaked, negated = tweak_add_pubkey(pubkey, tweak)
leaves = dict((name, TaprootLeafInfo(script, version, merklebranch, leaf)) for name, version, script, merklebranch, leaf in ret)
return TaprootInfo(CScript([OP_1, tweaked]), pubkey, negated + 0, tweak, leaves, h, tweaked)
def is_op_success(o):
return o == 0x50 or o == 0x62 or o == 0x89 or o == 0x8a or o == 0x8d or o == 0x8e or (o >= 0x7e and o <= 0x81) or (o >= 0x83 and o <= 0x86) or (o >= 0x95 and o <= 0x99) or (o >= 0xbb and o <= 0xfe)

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#!/usr/bin/env python3
# Copyright (c) 2019-2021 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Useful Script constants and utils."""
from test_framework.script import (
CScript,
CScriptOp,
OP_0,
OP_CHECKMULTISIG,
OP_CHECKSIG,
OP_DUP,
OP_EQUAL,
OP_EQUALVERIFY,
OP_HASH160,
hash160,
sha256,
)
# To prevent a "tx-size-small" policy rule error, a transaction has to have a
# non-witness size of at least 82 bytes (MIN_STANDARD_TX_NONWITNESS_SIZE in
# src/policy/policy.h). Considering a Tx with the smallest possible single
# input (blank, empty scriptSig), and with an output omitting the scriptPubKey,
# we get to a minimum size of 60 bytes:
#
# Tx Skeleton: 4 [Version] + 1 [InCount] + 1 [OutCount] + 4 [LockTime] = 10 bytes
# Blank Input: 32 [PrevTxHash] + 4 [Index] + 1 [scriptSigLen] + 4 [SeqNo] = 41 bytes
# Output: 8 [Amount] + 1 [scriptPubKeyLen] = 9 bytes
#
# Hence, the scriptPubKey of the single output has to have a size of at
# least 22 bytes, which corresponds to the size of a P2WPKH scriptPubKey.
# The following script constant consists of a single push of 21 bytes of 'a':
# <PUSH_21> <21-bytes of 'a'>
# resulting in a 22-byte size. It should be used whenever (small) fake
# scriptPubKeys are needed, to guarantee that the minimum transaction size is
# met.
DUMMY_P2WPKH_SCRIPT = CScript([b'a' * 21])
DUMMY_2_P2WPKH_SCRIPT = CScript([b'b' * 21])
def key_to_p2pk_script(key):
key = check_key(key)
return CScript([key, OP_CHECKSIG])
def keys_to_multisig_script(keys, *, k=None):
n = len(keys)
if k is None: # n-of-n multisig by default
k = n
assert k <= n
op_k = CScriptOp.encode_op_n(k)
op_n = CScriptOp.encode_op_n(n)
checked_keys = [check_key(key) for key in keys]
return CScript([op_k] + checked_keys + [op_n, OP_CHECKMULTISIG])
def keyhash_to_p2pkh_script(hash):
assert len(hash) == 20
return CScript([OP_DUP, OP_HASH160, hash, OP_EQUALVERIFY, OP_CHECKSIG])
def scripthash_to_p2sh_script(hash):
assert len(hash) == 20
return CScript([OP_HASH160, hash, OP_EQUAL])
def key_to_p2pkh_script(key):
key = check_key(key)
return keyhash_to_p2pkh_script(hash160(key))
def script_to_p2sh_script(script):
script = check_script(script)
return scripthash_to_p2sh_script(hash160(script))
def key_to_p2sh_p2wpkh_script(key):
key = check_key(key)
p2shscript = CScript([OP_0, hash160(key)])
return script_to_p2sh_script(p2shscript)
def program_to_witness_script(version, program):
if isinstance(program, str):
program = bytes.fromhex(program)
assert 0 <= version <= 16
assert 2 <= len(program) <= 40
assert version > 0 or len(program) in [20, 32]
return CScript([version, program])
def script_to_p2wsh_script(script):
script = check_script(script)
return program_to_witness_script(0, sha256(script))
def key_to_p2wpkh_script(key):
key = check_key(key)
return program_to_witness_script(0, hash160(key))
def script_to_p2sh_p2wsh_script(script):
script = check_script(script)
p2shscript = CScript([OP_0, sha256(script)])
return script_to_p2sh_script(p2shscript)
def check_key(key):
if isinstance(key, str):
key = bytes.fromhex(key) # Assuming this is hex string
if isinstance(key, bytes) and (len(key) == 33 or len(key) == 65):
return key
assert False
def check_script(script):
if isinstance(script, str):
script = bytes.fromhex(script) # Assuming this is hex string
if isinstance(script, bytes) or isinstance(script, CScript):
return script
assert False

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miner_imports/test_framework/segwit_addr.py Normal file
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#!/usr/bin/env python3
# Copyright (c) 2017 Pieter Wuille
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Reference implementation for Bech32/Bech32m and segwit addresses."""
import unittest
from enum import Enum
CHARSET = "qpzry9x8gf2tvdw0s3jn54khce6mua7l"
BECH32_CONST = 1
BECH32M_CONST = 0x2bc830a3
class Encoding(Enum):
"""Enumeration type to list the various supported encodings."""
BECH32 = 1
BECH32M = 2
def bech32_polymod(values):
"""Internal function that computes the Bech32 checksum."""
generator = [0x3b6a57b2, 0x26508e6d, 0x1ea119fa, 0x3d4233dd, 0x2a1462b3]
chk = 1
for value in values:
top = chk >> 25
chk = (chk & 0x1ffffff) << 5 ^ value
for i in range(5):
chk ^= generator[i] if ((top >> i) & 1) else 0
return chk
def bech32_hrp_expand(hrp):
"""Expand the HRP into values for checksum computation."""
return [ord(x) >> 5 for x in hrp] + [0] + [ord(x) & 31 for x in hrp]
def bech32_verify_checksum(hrp, data):
"""Verify a checksum given HRP and converted data characters."""
check = bech32_polymod(bech32_hrp_expand(hrp) + data)
if check == BECH32_CONST:
return Encoding.BECH32
elif check == BECH32M_CONST:
return Encoding.BECH32M
else:
return None
def bech32_create_checksum(encoding, hrp, data):
"""Compute the checksum values given HRP and data."""
values = bech32_hrp_expand(hrp) + data
const = BECH32M_CONST if encoding == Encoding.BECH32M else BECH32_CONST
polymod = bech32_polymod(values + [0, 0, 0, 0, 0, 0]) ^ const
return [(polymod >> 5 * (5 - i)) & 31 for i in range(6)]
def bech32_encode(encoding, hrp, data):
"""Compute a Bech32 or Bech32m string given HRP and data values."""
combined = data + bech32_create_checksum(encoding, hrp, data)
return hrp + '1' + ''.join([CHARSET[d] for d in combined])
def bech32_decode(bech):
"""Validate a Bech32/Bech32m string, and determine HRP and data."""
if ((any(ord(x) < 33 or ord(x) > 126 for x in bech)) or
(bech.lower() != bech and bech.upper() != bech)):
return (None, None, None)
bech = bech.lower()
pos = bech.rfind('1')
if pos < 1 or pos + 7 > len(bech) or len(bech) > 90:
return (None, None, None)
if not all(x in CHARSET for x in bech[pos+1:]):
return (None, None, None)
hrp = bech[:pos]
data = [CHARSET.find(x) for x in bech[pos+1:]]
encoding = bech32_verify_checksum(hrp, data)
if encoding is None:
return (None, None, None)
return (encoding, hrp, data[:-6])
def convertbits(data, frombits, tobits, pad=True):
"""General power-of-2 base conversion."""
acc = 0
bits = 0
ret = []
maxv = (1 << tobits) - 1
max_acc = (1 << (frombits + tobits - 1)) - 1
for value in data:
if value < 0 or (value >> frombits):
return None
acc = ((acc << frombits) | value) & max_acc
bits += frombits
while bits >= tobits:
bits -= tobits
ret.append((acc >> bits) & maxv)
if pad:
if bits:
ret.append((acc << (tobits - bits)) & maxv)
elif bits >= frombits or ((acc << (tobits - bits)) & maxv):
return None
return ret
def decode_segwit_address(hrp, addr):
"""Decode a segwit address."""
encoding, hrpgot, data = bech32_decode(addr)
if hrpgot != hrp:
return (None, None)
decoded = convertbits(data[1:], 5, 8, False)
if decoded is None or len(decoded) < 2 or len(decoded) > 40:
return (None, None)
if data[0] > 16:
return (None, None)
if data[0] == 0 and len(decoded) != 20 and len(decoded) != 32:
return (None, None)
if (data[0] == 0 and encoding != Encoding.BECH32) or (data[0] != 0 and encoding != Encoding.BECH32M):
return (None, None)
return (data[0], decoded)
def encode_segwit_address(hrp, witver, witprog):
"""Encode a segwit address."""
encoding = Encoding.BECH32 if witver == 0 else Encoding.BECH32M
ret = bech32_encode(encoding, hrp, [witver] + convertbits(witprog, 8, 5))
if decode_segwit_address(hrp, ret) == (None, None):
return None
return ret
class TestFrameworkScript(unittest.TestCase):
def test_segwit_encode_decode(self):
def test_python_bech32(addr):
hrp = addr[:4]
self.assertEqual(hrp, "bcrt")
(witver, witprog) = decode_segwit_address(hrp, addr)
self.assertEqual(encode_segwit_address(hrp, witver, witprog), addr)
# P2WPKH
test_python_bech32('bcrt1qthmht0k2qnh3wy7336z05lu2km7emzfpm3wg46')
# P2WSH
test_python_bech32('bcrt1qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq3xueyj')
test_python_bech32('bcrt1qft5p2uhsdcdc3l2ua4ap5qqfg4pjaqlp250x7us7a8qqhrxrxfsqseac85')
# P2TR
test_python_bech32('bcrt1p0xlxvlhemja6c4dqv22uapctqupfhlxm9h8z3k2e72q4k9hcz7vqc8gma6')

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#!/usr/bin/env python3
# Copyright (c) 2016-2018 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Specialized SipHash-2-4 implementations.
This implements SipHash-2-4 for 256-bit integers.
"""
def rotl64(n, b):
return n >> (64 - b) | (n & ((1 << (64 - b)) - 1)) << b
def siphash_round(v0, v1, v2, v3):
v0 = (v0 + v1) & ((1 << 64) - 1)
v1 = rotl64(v1, 13)
v1 ^= v0
v0 = rotl64(v0, 32)
v2 = (v2 + v3) & ((1 << 64) - 1)
v3 = rotl64(v3, 16)
v3 ^= v2
v0 = (v0 + v3) & ((1 << 64) - 1)
v3 = rotl64(v3, 21)
v3 ^= v0
v2 = (v2 + v1) & ((1 << 64) - 1)
v1 = rotl64(v1, 17)
v1 ^= v2
v2 = rotl64(v2, 32)
return (v0, v1, v2, v3)
def siphash256(k0, k1, h):
n0 = h & ((1 << 64) - 1)
n1 = (h >> 64) & ((1 << 64) - 1)
n2 = (h >> 128) & ((1 << 64) - 1)
n3 = (h >> 192) & ((1 << 64) - 1)
v0 = 0x736f6d6570736575 ^ k0
v1 = 0x646f72616e646f6d ^ k1
v2 = 0x6c7967656e657261 ^ k0
v3 = 0x7465646279746573 ^ k1 ^ n0
v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3)
v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3)
v0 ^= n0
v3 ^= n1
v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3)
v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3)
v0 ^= n1
v3 ^= n2
v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3)
v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3)
v0 ^= n2
v3 ^= n3
v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3)
v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3)
v0 ^= n3
v3 ^= 0x2000000000000000
v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3)
v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3)
v0 ^= 0x2000000000000000
v2 ^= 0xFF
v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3)
v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3)
v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3)
v0, v1, v2, v3 = siphash_round(v0, v1, v2, v3)
return v0 ^ v1 ^ v2 ^ v3

160
miner_imports/test_framework/socks5.py Normal file
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@@ -0,0 +1,160 @@
#!/usr/bin/env python3
# Copyright (c) 2015-2019 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Dummy Socks5 server for testing."""
import socket
import threading
import queue
import logging
logger = logging.getLogger("TestFramework.socks5")
# Protocol constants
class Command:
CONNECT = 0x01
class AddressType:
IPV4 = 0x01
DOMAINNAME = 0x03
IPV6 = 0x04
# Utility functions
def recvall(s, n):
"""Receive n bytes from a socket, or fail."""
rv = bytearray()
while n > 0:
d = s.recv(n)
if not d:
raise IOError('Unexpected end of stream')
rv.extend(d)
n -= len(d)
return rv
# Implementation classes
class Socks5Configuration():
"""Proxy configuration."""
def __init__(self):
self.addr = None # Bind address (must be set)
self.af = socket.AF_INET # Bind address family
self.unauth = False # Support unauthenticated
self.auth = False # Support authentication
class Socks5Command():
"""Information about an incoming socks5 command."""
def __init__(self, cmd, atyp, addr, port, username, password):
self.cmd = cmd # Command (one of Command.*)
self.atyp = atyp # Address type (one of AddressType.*)
self.addr = addr # Address
self.port = port # Port to connect to
self.username = username
self.password = password
def __repr__(self):
return 'Socks5Command(%s,%s,%s,%s,%s,%s)' % (self.cmd, self.atyp, self.addr, self.port, self.username, self.password)
class Socks5Connection():
def __init__(self, serv, conn):
self.serv = serv
self.conn = conn
def handle(self):
"""Handle socks5 request according to RFC192."""
try:
# Verify socks version
ver = recvall(self.conn, 1)[0]
if ver != 0x05:
raise IOError('Invalid socks version %i' % ver)
# Choose authentication method
nmethods = recvall(self.conn, 1)[0]
methods = bytearray(recvall(self.conn, nmethods))
method = None
if 0x02 in methods and self.serv.conf.auth:
method = 0x02 # username/password
elif 0x00 in methods and self.serv.conf.unauth:
method = 0x00 # unauthenticated
if method is None:
raise IOError('No supported authentication method was offered')
# Send response
self.conn.sendall(bytearray([0x05, method]))
# Read authentication (optional)
username = None
password = None
if method == 0x02:
ver = recvall(self.conn, 1)[0]
if ver != 0x01:
raise IOError('Invalid auth packet version %i' % ver)
ulen = recvall(self.conn, 1)[0]
username = str(recvall(self.conn, ulen))
plen = recvall(self.conn, 1)[0]
password = str(recvall(self.conn, plen))
# Send authentication response
self.conn.sendall(bytearray([0x01, 0x00]))
# Read connect request
ver, cmd, _, atyp = recvall(self.conn, 4)
if ver != 0x05:
raise IOError('Invalid socks version %i in connect request' % ver)
if cmd != Command.CONNECT:
raise IOError('Unhandled command %i in connect request' % cmd)
if atyp == AddressType.IPV4:
addr = recvall(self.conn, 4)
elif atyp == AddressType.DOMAINNAME:
n = recvall(self.conn, 1)[0]
addr = recvall(self.conn, n)
elif atyp == AddressType.IPV6:
addr = recvall(self.conn, 16)
else:
raise IOError('Unknown address type %i' % atyp)
port_hi,port_lo = recvall(self.conn, 2)
port = (port_hi << 8) | port_lo
# Send dummy response
self.conn.sendall(bytearray([0x05, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]))
cmdin = Socks5Command(cmd, atyp, addr, port, username, password)
self.serv.queue.put(cmdin)
logger.info('Proxy: %s', cmdin)
# Fall through to disconnect
except Exception as e:
logger.exception("socks5 request handling failed.")
self.serv.queue.put(e)
finally:
self.conn.close()
class Socks5Server():
def __init__(self, conf):
self.conf = conf
self.s = socket.socket(conf.af)
self.s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self.s.bind(conf.addr)
self.s.listen(5)
self.running = False
self.thread = None
self.queue = queue.Queue() # report connections and exceptions to client
def run(self):
while self.running:
(sockconn, _) = self.s.accept()
if self.running:
conn = Socks5Connection(self, sockconn)
thread = threading.Thread(None, conn.handle)
thread.daemon = True
thread.start()
def start(self):
assert not self.running
self.running = True
self.thread = threading.Thread(None, self.run)
self.thread.daemon = True
self.thread.start()
def stop(self):
self.running = False
# connect to self to end run loop
s = socket.socket(self.conf.af)
s.connect(self.conf.addr)
s.close()
self.thread.join()

920
miner_imports/test_framework/test_framework.py Executable file
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@@ -0,0 +1,920 @@
#!/usr/bin/env python3
# Copyright (c) 2014-2021 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Base class for RPC testing."""
import configparser
from enum import Enum
import argparse
import logging
import os
import pdb
import random
import re
import shutil
import subprocess
import sys
import tempfile
import time
from typing import List
from .address import create_deterministic_address_bcrt1_p2tr_op_true
from .authproxy import JSONRPCException
from . import coverage
from .p2p import NetworkThread
from .test_node import TestNode
from .util import (
MAX_NODES,
PortSeed,
assert_equal,
check_json_precision,
get_datadir_path,
initialize_datadir,
p2p_port,
wait_until_helper,
)
class TestStatus(Enum):
PASSED = 1
FAILED = 2
SKIPPED = 3
TEST_EXIT_PASSED = 0
TEST_EXIT_FAILED = 1
TEST_EXIT_SKIPPED = 77
TMPDIR_PREFIX = "bitcoin_func_test_"
class SkipTest(Exception):
"""This exception is raised to skip a test"""
def __init__(self, message):
self.message = message
class BitcoinTestMetaClass(type):
"""Metaclass for BitcoinTestFramework.
Ensures that any attempt to register a subclass of `BitcoinTestFramework`
adheres to a standard whereby the subclass overrides `set_test_params` and
`run_test` but DOES NOT override either `__init__` or `main`. If any of
those standards are violated, a ``TypeError`` is raised."""
def __new__(cls, clsname, bases, dct):
if not clsname == 'BitcoinTestFramework':
if not ('run_test' in dct and 'set_test_params' in dct):
raise TypeError("BitcoinTestFramework subclasses must override "
"'run_test' and 'set_test_params'")
if '__init__' in dct or 'main' in dct:
raise TypeError("BitcoinTestFramework subclasses may not override "
"'__init__' or 'main'")
return super().__new__(cls, clsname, bases, dct)
class BitcoinTestFramework(metaclass=BitcoinTestMetaClass):
"""Base class for a bitcoin test script.
Individual bitcoin test scripts should subclass this class and override the set_test_params() and run_test() methods.
Individual tests can also override the following methods to customize the test setup:
- add_options()
- setup_chain()
- setup_network()
- setup_nodes()
The __init__() and main() methods should not be overridden.
This class also contains various public and private helper methods."""
def __init__(self):
"""Sets test framework defaults. Do not override this method. Instead, override the set_test_params() method"""
self.chain: str = 'regtest'
self.setup_clean_chain: bool = False
self.nodes: List[TestNode] = []
self.network_thread = None
self.rpc_timeout = 60 # Wait for up to 60 seconds for the RPC server to respond
self.supports_cli = True
self.bind_to_localhost_only = True
self.parse_args()
self.disable_syscall_sandbox = self.options.nosandbox or self.options.valgrind
self.default_wallet_name = "default_wallet" if self.options.descriptors else ""
self.wallet_data_filename = "wallet.dat"
# Optional list of wallet names that can be set in set_test_params to
# create and import keys to. If unset, default is len(nodes) *
# [default_wallet_name]. If wallet names are None, wallet creation is
# skipped. If list is truncated, wallet creation is skipped and keys
# are not imported.
self.wallet_names = None
# By default the wallet is not required. Set to true by skip_if_no_wallet().
# When False, we ignore wallet_names regardless of what it is.
self.requires_wallet = False
# Disable ThreadOpenConnections by default, so that adding entries to
# addrman will not result in automatic connections to them.
self.disable_autoconnect = True
self.set_test_params()
assert self.wallet_names is None or len(self.wallet_names) <= self.num_nodes
if self.options.timeout_factor == 0 :
self.options.timeout_factor = 99999
self.rpc_timeout = int(self.rpc_timeout * self.options.timeout_factor) # optionally, increase timeout by a factor
def main(self):
"""Main function. This should not be overridden by the subclass test scripts."""
assert hasattr(self, "num_nodes"), "Test must set self.num_nodes in set_test_params()"
try:
self.setup()
self.run_test()
except JSONRPCException:
self.log.exception("JSONRPC error")
self.success = TestStatus.FAILED
except SkipTest as e:
self.log.warning("Test Skipped: %s" % e.message)
self.success = TestStatus.SKIPPED
except AssertionError:
self.log.exception("Assertion failed")
self.success = TestStatus.FAILED
except KeyError:
self.log.exception("Key error")
self.success = TestStatus.FAILED
except subprocess.CalledProcessError as e:
self.log.exception("Called Process failed with '{}'".format(e.output))
self.success = TestStatus.FAILED
except Exception:
self.log.exception("Unexpected exception caught during testing")
self.success = TestStatus.FAILED
except KeyboardInterrupt:
self.log.warning("Exiting after keyboard interrupt")
self.success = TestStatus.FAILED
finally:
exit_code = self.shutdown()
sys.exit(exit_code)
def parse_args(self):
previous_releases_path = os.getenv("PREVIOUS_RELEASES_DIR") or os.getcwd() + "/releases"
parser = argparse.ArgumentParser(usage="%(prog)s [options]")
parser.add_argument("--nocleanup", dest="nocleanup", default=False, action="store_true",
help="Leave bitcoinds and test.* datadir on exit or error")
parser.add_argument("--nosandbox", dest="nosandbox", default=False, action="store_true",
help="Don't use the syscall sandbox")
parser.add_argument("--noshutdown", dest="noshutdown", default=False, action="store_true",
help="Don't stop bitcoinds after the test execution")
parser.add_argument("--cachedir", dest="cachedir", default=os.path.abspath(os.path.dirname(os.path.realpath(__file__)) + "/../../cache"),
help="Directory for caching pregenerated datadirs (default: %(default)s)")
parser.add_argument("--tmpdir", dest="tmpdir", help="Root directory for datadirs")
parser.add_argument("-l", "--loglevel", dest="loglevel", default="INFO",
help="log events at this level and higher to the console. Can be set to DEBUG, INFO, WARNING, ERROR or CRITICAL. Passing --loglevel DEBUG will output all logs to console. Note that logs at all levels are always written to the test_framework.log file in the temporary test directory.")
parser.add_argument("--tracerpc", dest="trace_rpc", default=False, action="store_true",
help="Print out all RPC calls as they are made")
parser.add_argument("--portseed", dest="port_seed", default=os.getpid(), type=int,
help="The seed to use for assigning port numbers (default: current process id)")
parser.add_argument("--previous-releases", dest="prev_releases", action="store_true",
default=os.path.isdir(previous_releases_path) and bool(os.listdir(previous_releases_path)),
help="Force test of previous releases (default: %(default)s)")
parser.add_argument("--coveragedir", dest="coveragedir",
help="Write tested RPC commands into this directory")
parser.add_argument("--configfile", dest="configfile",
default=os.path.abspath(os.path.dirname(os.path.realpath(__file__)) + "/../../config.ini"),
help="Location of the test framework config file (default: %(default)s)")
parser.add_argument("--pdbonfailure", dest="pdbonfailure", default=False, action="store_true",
help="Attach a python debugger if test fails")
parser.add_argument("--usecli", dest="usecli", default=False, action="store_true",
help="use bitcoin-cli instead of RPC for all commands")
parser.add_argument("--perf", dest="perf", default=False, action="store_true",
help="profile running nodes with perf for the duration of the test")
parser.add_argument("--valgrind", dest="valgrind", default=False, action="store_true",
help="run nodes under the valgrind memory error detector: expect at least a ~10x slowdown. valgrind 3.14 or later required. Forces --nosandbox.")
parser.add_argument("--randomseed", type=int,
help="set a random seed for deterministically reproducing a previous test run")
parser.add_argument('--timeout-factor', dest="timeout_factor", type=float, default=1.0, help='adjust test timeouts by a factor. Setting it to 0 disables all timeouts')
group = parser.add_mutually_exclusive_group()
group.add_argument("--descriptors", action='store_const', const=True,
help="Run test using a descriptor wallet", dest='descriptors')
group.add_argument("--legacy-wallet", action='store_const', const=False,
help="Run test using legacy wallets", dest='descriptors')
self.add_options(parser)
# Running TestShell in a Jupyter notebook causes an additional -f argument
# To keep TestShell from failing with an "unrecognized argument" error, we add a dummy "-f" argument
# source: https://stackoverflow.com/questions/48796169/how-to-fix-ipykernel-launcher-py-error-unrecognized-arguments-in-jupyter/56349168#56349168
parser.add_argument("-f", "--fff", help="a dummy argument to fool ipython", default="1")
self.options = parser.parse_args()
self.options.previous_releases_path = previous_releases_path
config = configparser.ConfigParser()
config.read_file(open(self.options.configfile))
self.config = config
if self.options.descriptors is None:
# Prefer BDB unless it isn't available
if self.is_bdb_compiled():
self.options.descriptors = False
elif self.is_sqlite_compiled():
self.options.descriptors = True
else:
# If neither are compiled, tests requiring a wallet will be skipped and the value of self.options.descriptors won't matter
# It still needs to exist and be None in order for tests to work however.
self.options.descriptors = None
def setup(self):
"""Call this method to start up the test framework object with options set."""
PortSeed.n = self.options.port_seed
check_json_precision()
self.options.cachedir = os.path.abspath(self.options.cachedir)
config = self.config
fname_bitcoind = os.path.join(
config["environment"]["BUILDDIR"],
"src",
"bitcoind" + config["environment"]["EXEEXT"],
)
fname_bitcoincli = os.path.join(
config["environment"]["BUILDDIR"],
"src",
"bitcoin-cli" + config["environment"]["EXEEXT"],
)
self.options.bitcoind = os.getenv("BITCOIND", default=fname_bitcoind)
self.options.bitcoincli = os.getenv("BITCOINCLI", default=fname_bitcoincli)
os.environ['PATH'] = os.pathsep.join([
os.path.join(config['environment']['BUILDDIR'], 'src'),
os.path.join(config['environment']['BUILDDIR'], 'src', 'qt'), os.environ['PATH']
])
# Set up temp directory and start logging
if self.options.tmpdir:
self.options.tmpdir = os.path.abspath(self.options.tmpdir)
os.makedirs(self.options.tmpdir, exist_ok=False)
else:
self.options.tmpdir = tempfile.mkdtemp(prefix=TMPDIR_PREFIX)
self._start_logging()
# Seed the PRNG. Note that test runs are reproducible if and only if
# a single thread accesses the PRNG. For more information, see
# https://docs.python.org/3/library/random.html#notes-on-reproducibility.
# The network thread shouldn't access random. If we need to change the
# network thread to access randomness, it should instantiate its own
# random.Random object.
seed = self.options.randomseed
if seed is None:
seed = random.randrange(sys.maxsize)
else:
self.log.debug("User supplied random seed {}".format(seed))
random.seed(seed)
self.log.debug("PRNG seed is: {}".format(seed))
self.log.debug('Setting up network thread')
self.network_thread = NetworkThread()
self.network_thread.start()
if self.options.usecli:
if not self.supports_cli:
raise SkipTest("--usecli specified but test does not support using CLI")
self.skip_if_no_cli()
self.skip_test_if_missing_module()
self.setup_chain()
self.setup_network()
self.success = TestStatus.PASSED
def shutdown(self):
"""Call this method to shut down the test framework object."""
if self.success == TestStatus.FAILED and self.options.pdbonfailure:
print("Testcase failed. Attaching python debugger. Enter ? for help")
pdb.set_trace()
self.log.debug('Closing down network thread')
self.network_thread.close()
if not self.options.noshutdown:
self.log.info("Stopping nodes")
if self.nodes:
self.stop_nodes()
else:
for node in self.nodes:
node.cleanup_on_exit = False
self.log.info("Note: bitcoinds were not stopped and may still be running")
should_clean_up = (
not self.options.nocleanup and
not self.options.noshutdown and
self.success != TestStatus.FAILED and
not self.options.perf
)
if should_clean_up:
self.log.info("Cleaning up {} on exit".format(self.options.tmpdir))
cleanup_tree_on_exit = True
elif self.options.perf:
self.log.warning("Not cleaning up dir {} due to perf data".format(self.options.tmpdir))
cleanup_tree_on_exit = False
else:
self.log.warning("Not cleaning up dir {}".format(self.options.tmpdir))
cleanup_tree_on_exit = False
if self.success == TestStatus.PASSED:
self.log.info("Tests successful")
exit_code = TEST_EXIT_PASSED
elif self.success == TestStatus.SKIPPED:
self.log.info("Test skipped")
exit_code = TEST_EXIT_SKIPPED
else:
self.log.error("Test failed. Test logging available at %s/test_framework.log", self.options.tmpdir)
self.log.error("")
self.log.error("Hint: Call {} '{}' to consolidate all logs".format(os.path.normpath(os.path.dirname(os.path.realpath(__file__)) + "/../combine_logs.py"), self.options.tmpdir))
self.log.error("")
self.log.error("If this failure happened unexpectedly or intermittently, please file a bug and provide a link or upload of the combined log.")
self.log.error(self.config['environment']['PACKAGE_BUGREPORT'])
self.log.error("")
exit_code = TEST_EXIT_FAILED
# Logging.shutdown will not remove stream- and filehandlers, so we must
# do it explicitly. Handlers are removed so the next test run can apply
# different log handler settings.
# See: https://docs.python.org/3/library/logging.html#logging.shutdown
for h in list(self.log.handlers):
h.flush()
h.close()
self.log.removeHandler(h)
rpc_logger = logging.getLogger("BitcoinRPC")
for h in list(rpc_logger.handlers):
h.flush()
rpc_logger.removeHandler(h)
if cleanup_tree_on_exit:
shutil.rmtree(self.options.tmpdir)
self.nodes.clear()
return exit_code
# Methods to override in subclass test scripts.
def set_test_params(self):
"""Tests must override this method to change default values for number of nodes, topology, etc"""
raise NotImplementedError
def add_options(self, parser):
"""Override this method to add command-line options to the test"""
pass
def skip_test_if_missing_module(self):
"""Override this method to skip a test if a module is not compiled"""
pass
def setup_chain(self):
"""Override this method to customize blockchain setup"""
self.log.info("Initializing test directory " + self.options.tmpdir)
if self.setup_clean_chain:
self._initialize_chain_clean()
else:
self._initialize_chain()
def setup_network(self):
"""Override this method to customize test network topology"""
self.setup_nodes()
# Connect the nodes as a "chain". This allows us
# to split the network between nodes 1 and 2 to get
# two halves that can work on competing chains.
#
# Topology looks like this:
# node0 <-- node1 <-- node2 <-- node3
#
# If all nodes are in IBD (clean chain from genesis), node0 is assumed to be the source of blocks (miner). To
# ensure block propagation, all nodes will establish outgoing connections toward node0.
# See fPreferredDownload in net_processing.
#
# If further outbound connections are needed, they can be added at the beginning of the test with e.g.
# self.connect_nodes(1, 2)
for i in range(self.num_nodes - 1):
self.connect_nodes(i + 1, i)
self.sync_all()
def setup_nodes(self):
"""Override this method to customize test node setup"""
extra_args = [[]] * self.num_nodes
if hasattr(self, "extra_args"):
extra_args = self.extra_args
self.add_nodes(self.num_nodes, extra_args)
self.start_nodes()
if self.requires_wallet:
self.import_deterministic_coinbase_privkeys()
if not self.setup_clean_chain:
for n in self.nodes:
assert_equal(n.getblockchaininfo()["blocks"], 199)
# To ensure that all nodes are out of IBD, the most recent block
# must have a timestamp not too old (see IsInitialBlockDownload()).
self.log.debug('Generate a block with current time')
block_hash = self.generate(self.nodes[0], 1, sync_fun=self.no_op)[0]
block = self.nodes[0].getblock(blockhash=block_hash, verbosity=0)
for n in self.nodes:
n.submitblock(block)
chain_info = n.getblockchaininfo()
assert_equal(chain_info["blocks"], 200)
assert_equal(chain_info["initialblockdownload"], False)
def import_deterministic_coinbase_privkeys(self):
for i in range(self.num_nodes):
self.init_wallet(node=i)
def init_wallet(self, *, node):
wallet_name = self.default_wallet_name if self.wallet_names is None else self.wallet_names[node] if node < len(self.wallet_names) else False
if wallet_name is not False:
n = self.nodes[node]
if wallet_name is not None:
n.createwallet(wallet_name=wallet_name, descriptors=self.options.descriptors, load_on_startup=True)
n.importprivkey(privkey=n.get_deterministic_priv_key().key, label='coinbase', rescan=True)
def run_test(self):
"""Tests must override this method to define test logic"""
raise NotImplementedError
# Public helper methods. These can be accessed by the subclass test scripts.
def add_nodes(self, num_nodes: int, extra_args=None, *, rpchost=None, binary=None, binary_cli=None, versions=None):
"""Instantiate TestNode objects.
Should only be called once after the nodes have been specified in
set_test_params()."""
def get_bin_from_version(version, bin_name, bin_default):
if not version:
return bin_default
if version > 219999:
# Starting at client version 220000 the first two digits represent
# the major version, e.g. v22.0 instead of v0.22.0.
version *= 100
return os.path.join(
self.options.previous_releases_path,
re.sub(
r'\.0$' if version <= 219999 else r'(\.0){1,2}$',
'', # Remove trailing dot for point releases, after 22.0 also remove double trailing dot.
'v{}.{}.{}.{}'.format(
(version % 100000000) // 1000000,
(version % 1000000) // 10000,
(version % 10000) // 100,
(version % 100) // 1,
),
),
'bin',
bin_name,
)
if self.bind_to_localhost_only:
extra_confs = [["bind=127.0.0.1"]] * num_nodes
else:
extra_confs = [[]] * num_nodes
if extra_args is None:
extra_args = [[]] * num_nodes
if versions is None:
versions = [None] * num_nodes
if self.is_syscall_sandbox_compiled() and not self.disable_syscall_sandbox:
for i in range(len(extra_args)):
# The -sandbox argument is not present in the v22.0 release.
if versions[i] is None or versions[i] >= 229900:
extra_args[i] = extra_args[i] + ["-sandbox=log-and-abort"]
if binary is None:
binary = [get_bin_from_version(v, 'bitcoind', self.options.bitcoind) for v in versions]
if binary_cli is None:
binary_cli = [get_bin_from_version(v, 'bitcoin-cli', self.options.bitcoincli) for v in versions]
assert_equal(len(extra_confs), num_nodes)
assert_equal(len(extra_args), num_nodes)
assert_equal(len(versions), num_nodes)
assert_equal(len(binary), num_nodes)
assert_equal(len(binary_cli), num_nodes)
for i in range(num_nodes):
test_node_i = TestNode(
i,
get_datadir_path(self.options.tmpdir, i),
chain=self.chain,
rpchost=rpchost,
timewait=self.rpc_timeout,
timeout_factor=self.options.timeout_factor,
bitcoind=binary[i],
bitcoin_cli=binary_cli[i],
version=versions[i],
coverage_dir=self.options.coveragedir,
cwd=self.options.tmpdir,
extra_conf=extra_confs[i],
extra_args=extra_args[i],
use_cli=self.options.usecli,
start_perf=self.options.perf,
use_valgrind=self.options.valgrind,
descriptors=self.options.descriptors,
)
self.nodes.append(test_node_i)
if not test_node_i.version_is_at_least(170000):
# adjust conf for pre 17
conf_file = test_node_i.bitcoinconf
with open(conf_file, 'r', encoding='utf8') as conf:
conf_data = conf.read()
with open(conf_file, 'w', encoding='utf8') as conf:
conf.write(conf_data.replace('[regtest]', ''))
def start_node(self, i, *args, **kwargs):
"""Start a bitcoind"""
node = self.nodes[i]
node.start(*args, **kwargs)
node.wait_for_rpc_connection()
if self.options.coveragedir is not None:
coverage.write_all_rpc_commands(self.options.coveragedir, node.rpc)
def start_nodes(self, extra_args=None, *args, **kwargs):
"""Start multiple bitcoinds"""
if extra_args is None:
extra_args = [None] * self.num_nodes
assert_equal(len(extra_args), self.num_nodes)
try:
for i, node in enumerate(self.nodes):
node.start(extra_args[i], *args, **kwargs)
for node in self.nodes:
node.wait_for_rpc_connection()
except:
# If one node failed to start, stop the others
self.stop_nodes()
raise
if self.options.coveragedir is not None:
for node in self.nodes:
coverage.write_all_rpc_commands(self.options.coveragedir, node.rpc)
def stop_node(self, i, expected_stderr='', wait=0):
"""Stop a bitcoind test node"""
self.nodes[i].stop_node(expected_stderr, wait=wait)
def stop_nodes(self, wait=0):
"""Stop multiple bitcoind test nodes"""
for node in self.nodes:
# Issue RPC to stop nodes
node.stop_node(wait=wait, wait_until_stopped=False)
for node in self.nodes:
# Wait for nodes to stop
node.wait_until_stopped()
def restart_node(self, i, extra_args=None):
"""Stop and start a test node"""
self.stop_node(i)
self.start_node(i, extra_args)
def wait_for_node_exit(self, i, timeout):
self.nodes[i].process.wait(timeout)
def connect_nodes(self, a, b):
from_connection = self.nodes[a]
to_connection = self.nodes[b]
ip_port = "127.0.0.1:" + str(p2p_port(b))
from_connection.addnode(ip_port, "onetry")
# poll until version handshake complete to avoid race conditions
# with transaction relaying
# See comments in net_processing:
# * Must have a version message before anything else
# * Must have a verack message before anything else
wait_until_helper(lambda: all(peer['version'] != 0 for peer in from_connection.getpeerinfo()))
wait_until_helper(lambda: all(peer['version'] != 0 for peer in to_connection.getpeerinfo()))
wait_until_helper(lambda: all(peer['bytesrecv_per_msg'].pop('verack', 0) == 24 for peer in from_connection.getpeerinfo()))
wait_until_helper(lambda: all(peer['bytesrecv_per_msg'].pop('verack', 0) == 24 for peer in to_connection.getpeerinfo()))
def disconnect_nodes(self, a, b):
def disconnect_nodes_helper(from_connection, node_num):
def get_peer_ids():
result = []
for peer in from_connection.getpeerinfo():
if "testnode{}".format(node_num) in peer['subver']:
result.append(peer['id'])
return result
peer_ids = get_peer_ids()
if not peer_ids:
self.log.warning("disconnect_nodes: {} and {} were not connected".format(
from_connection.index,
node_num,
))
return
for peer_id in peer_ids:
try:
from_connection.disconnectnode(nodeid=peer_id)
except JSONRPCException as e:
# If this node is disconnected between calculating the peer id
# and issuing the disconnect, don't worry about it.
# This avoids a race condition if we're mass-disconnecting peers.
if e.error['code'] != -29: # RPC_CLIENT_NODE_NOT_CONNECTED
raise
# wait to disconnect
wait_until_helper(lambda: not get_peer_ids(), timeout=5)
disconnect_nodes_helper(self.nodes[a], b)
def split_network(self):
"""
Split the network of four nodes into nodes 0/1 and 2/3.
"""
self.disconnect_nodes(1, 2)
self.sync_all(self.nodes[:2])
self.sync_all(self.nodes[2:])
def join_network(self):
"""
Join the (previously split) network halves together.
"""
self.connect_nodes(1, 2)
self.sync_all()
def no_op(self):
pass
def generate(self, generator, *args, sync_fun=None, **kwargs):
blocks = generator.generate(*args, invalid_call=False, **kwargs)
sync_fun() if sync_fun else self.sync_all()
return blocks
def generateblock(self, generator, *args, sync_fun=None, **kwargs):
blocks = generator.generateblock(*args, invalid_call=False, **kwargs)
sync_fun() if sync_fun else self.sync_all()
return blocks
def generatetoaddress(self, generator, *args, sync_fun=None, **kwargs):
blocks = generator.generatetoaddress(*args, invalid_call=False, **kwargs)
sync_fun() if sync_fun else self.sync_all()
return blocks
def generatetodescriptor(self, generator, *args, sync_fun=None, **kwargs):
blocks = generator.generatetodescriptor(*args, invalid_call=False, **kwargs)
sync_fun() if sync_fun else self.sync_all()
return blocks
def sync_blocks(self, nodes=None, wait=1, timeout=60):
"""
Wait until everybody has the same tip.
sync_blocks needs to be called with an rpc_connections set that has least
one node already synced to the latest, stable tip, otherwise there's a
chance it might return before all nodes are stably synced.
"""
rpc_connections = nodes or self.nodes
timeout = int(timeout * self.options.timeout_factor)
stop_time = time.time() + timeout
while time.time() <= stop_time:
best_hash = [x.getbestblockhash() for x in rpc_connections]
if best_hash.count(best_hash[0]) == len(rpc_connections):
return
# Check that each peer has at least one connection
assert (all([len(x.getpeerinfo()) for x in rpc_connections]))
time.sleep(wait)
raise AssertionError("Block sync timed out after {}s:{}".format(
timeout,
"".join("\n {!r}".format(b) for b in best_hash),
))
def sync_mempools(self, nodes=None, wait=1, timeout=60, flush_scheduler=True):
"""
Wait until everybody has the same transactions in their memory
pools
"""
rpc_connections = nodes or self.nodes
timeout = int(timeout * self.options.timeout_factor)
stop_time = time.time() + timeout
while time.time() <= stop_time:
pool = [set(r.getrawmempool()) for r in rpc_connections]
if pool.count(pool[0]) == len(rpc_connections):
if flush_scheduler:
for r in rpc_connections:
r.syncwithvalidationinterfacequeue()
return
# Check that each peer has at least one connection
assert (all([len(x.getpeerinfo()) for x in rpc_connections]))
time.sleep(wait)
raise AssertionError("Mempool sync timed out after {}s:{}".format(
timeout,
"".join("\n {!r}".format(m) for m in pool),
))
def sync_all(self, nodes=None):
self.sync_blocks(nodes)
self.sync_mempools(nodes)
def wait_until(self, test_function, timeout=60):
return wait_until_helper(test_function, timeout=timeout, timeout_factor=self.options.timeout_factor)
# Private helper methods. These should not be accessed by the subclass test scripts.
def _start_logging(self):
# Add logger and logging handlers
self.log = logging.getLogger('TestFramework')
self.log.setLevel(logging.DEBUG)
# Create file handler to log all messages
fh = logging.FileHandler(self.options.tmpdir + '/test_framework.log', encoding='utf-8')
fh.setLevel(logging.DEBUG)
# Create console handler to log messages to stderr. By default this logs only error messages, but can be configured with --loglevel.
ch = logging.StreamHandler(sys.stdout)
# User can provide log level as a number or string (eg DEBUG). loglevel was caught as a string, so try to convert it to an int
ll = int(self.options.loglevel) if self.options.loglevel.isdigit() else self.options.loglevel.upper()
ch.setLevel(ll)
# Format logs the same as bitcoind's debug.log with microprecision (so log files can be concatenated and sorted)
formatter = logging.Formatter(fmt='%(asctime)s.%(msecs)03d000Z %(name)s (%(levelname)s): %(message)s', datefmt='%Y-%m-%dT%H:%M:%S')
formatter.converter = time.gmtime
fh.setFormatter(formatter)
ch.setFormatter(formatter)
# add the handlers to the logger
self.log.addHandler(fh)
self.log.addHandler(ch)
if self.options.trace_rpc:
rpc_logger = logging.getLogger("BitcoinRPC")
rpc_logger.setLevel(logging.DEBUG)
rpc_handler = logging.StreamHandler(sys.stdout)
rpc_handler.setLevel(logging.DEBUG)
rpc_logger.addHandler(rpc_handler)
def _initialize_chain(self):
"""Initialize a pre-mined blockchain for use by the test.
Create a cache of a 199-block-long chain
Afterward, create num_nodes copies from the cache."""
CACHE_NODE_ID = 0 # Use node 0 to create the cache for all other nodes
cache_node_dir = get_datadir_path(self.options.cachedir, CACHE_NODE_ID)
assert self.num_nodes <= MAX_NODES
if not os.path.isdir(cache_node_dir):
self.log.debug("Creating cache directory {}".format(cache_node_dir))
initialize_datadir(self.options.cachedir, CACHE_NODE_ID, self.chain, self.disable_autoconnect)
self.nodes.append(
TestNode(
CACHE_NODE_ID,
cache_node_dir,
chain=self.chain,
extra_conf=["bind=127.0.0.1"],
extra_args=['-disablewallet'],
rpchost=None,
timewait=self.rpc_timeout,
timeout_factor=self.options.timeout_factor,
bitcoind=self.options.bitcoind,
bitcoin_cli=self.options.bitcoincli,
coverage_dir=None,
cwd=self.options.tmpdir,
descriptors=self.options.descriptors,
))
self.start_node(CACHE_NODE_ID)
cache_node = self.nodes[CACHE_NODE_ID]
# Wait for RPC connections to be ready
cache_node.wait_for_rpc_connection()
# Set a time in the past, so that blocks don't end up in the future
cache_node.setmocktime(cache_node.getblockheader(cache_node.getbestblockhash())['time'])
# Create a 199-block-long chain; each of the 3 first nodes
# gets 25 mature blocks and 25 immature.
# The 4th address gets 25 mature and only 24 immature blocks so that the very last
# block in the cache does not age too much (have an old tip age).
# This is needed so that we are out of IBD when the test starts,
# see the tip age check in IsInitialBlockDownload().
gen_addresses = [k.address for k in TestNode.PRIV_KEYS][:3] + [create_deterministic_address_bcrt1_p2tr_op_true()[0]]
assert_equal(len(gen_addresses), 4)
for i in range(8):
self.generatetoaddress(
cache_node,
nblocks=25 if i != 7 else 24,
address=gen_addresses[i % len(gen_addresses)],
)
assert_equal(cache_node.getblockchaininfo()["blocks"], 199)
# Shut it down, and clean up cache directories:
self.stop_nodes()
self.nodes = []
def cache_path(*paths):
return os.path.join(cache_node_dir, self.chain, *paths)
os.rmdir(cache_path('wallets')) # Remove empty wallets dir
for entry in os.listdir(cache_path()):
if entry not in ['chainstate', 'blocks', 'indexes']: # Only indexes, chainstate and blocks folders
os.remove(cache_path(entry))
for i in range(self.num_nodes):
self.log.debug("Copy cache directory {} to node {}".format(cache_node_dir, i))
to_dir = get_datadir_path(self.options.tmpdir, i)
shutil.copytree(cache_node_dir, to_dir)
initialize_datadir(self.options.tmpdir, i, self.chain, self.disable_autoconnect) # Overwrite port/rpcport in bitcoin.conf
def _initialize_chain_clean(self):
"""Initialize empty blockchain for use by the test.
Create an empty blockchain and num_nodes wallets.
Useful if a test case wants complete control over initialization."""
for i in range(self.num_nodes):
initialize_datadir(self.options.tmpdir, i, self.chain, self.disable_autoconnect)
def skip_if_no_py3_zmq(self):
"""Attempt to import the zmq package and skip the test if the import fails."""
try:
import zmq # noqa
except ImportError:
raise SkipTest("python3-zmq module not available.")
def skip_if_no_bitcoind_zmq(self):
"""Skip the running test if bitcoind has not been compiled with zmq support."""
if not self.is_zmq_compiled():
raise SkipTest("bitcoind has not been built with zmq enabled.")
def skip_if_no_wallet(self):
"""Skip the running test if wallet has not been compiled."""
self.requires_wallet = True
if not self.is_wallet_compiled():
raise SkipTest("wallet has not been compiled.")
if self.options.descriptors:
self.skip_if_no_sqlite()
else:
self.skip_if_no_bdb()
def skip_if_no_sqlite(self):
"""Skip the running test if sqlite has not been compiled."""
if not self.is_sqlite_compiled():
raise SkipTest("sqlite has not been compiled.")
def skip_if_no_bdb(self):
"""Skip the running test if BDB has not been compiled."""
if not self.is_bdb_compiled():
raise SkipTest("BDB has not been compiled.")
def skip_if_no_wallet_tool(self):
"""Skip the running test if bitcoin-wallet has not been compiled."""
if not self.is_wallet_tool_compiled():
raise SkipTest("bitcoin-wallet has not been compiled")
def skip_if_no_cli(self):
"""Skip the running test if bitcoin-cli has not been compiled."""
if not self.is_cli_compiled():
raise SkipTest("bitcoin-cli has not been compiled.")
def skip_if_no_previous_releases(self):
"""Skip the running test if previous releases are not available."""
if not self.has_previous_releases():
raise SkipTest("previous releases not available or disabled")
def has_previous_releases(self):
"""Checks whether previous releases are present and enabled."""
if not os.path.isdir(self.options.previous_releases_path):
if self.options.prev_releases:
raise AssertionError("Force test of previous releases but releases missing: {}".format(
self.options.previous_releases_path))
return self.options.prev_releases
def skip_if_no_external_signer(self):
"""Skip the running test if external signer support has not been compiled."""
if not self.is_external_signer_compiled():
raise SkipTest("external signer support has not been compiled.")
def is_cli_compiled(self):
"""Checks whether bitcoin-cli was compiled."""
return self.config["components"].getboolean("ENABLE_CLI")
def is_external_signer_compiled(self):
"""Checks whether external signer support was compiled."""
return self.config["components"].getboolean("ENABLE_EXTERNAL_SIGNER")
def is_wallet_compiled(self):
"""Checks whether the wallet module was compiled."""
return self.config["components"].getboolean("ENABLE_WALLET")
def is_specified_wallet_compiled(self):
"""Checks whether wallet support for the specified type
(legacy or descriptor wallet) was compiled."""
if self.options.descriptors:
return self.is_sqlite_compiled()
else:
return self.is_bdb_compiled()
def is_wallet_tool_compiled(self):
"""Checks whether bitcoin-wallet was compiled."""
return self.config["components"].getboolean("ENABLE_WALLET_TOOL")
def is_zmq_compiled(self):
"""Checks whether the zmq module was compiled."""
return self.config["components"].getboolean("ENABLE_ZMQ")
def is_sqlite_compiled(self):
"""Checks whether the wallet module was compiled with Sqlite support."""
return self.config["components"].getboolean("USE_SQLITE")
def is_bdb_compiled(self):
"""Checks whether the wallet module was compiled with BDB support."""
return self.config["components"].getboolean("USE_BDB")
def is_syscall_sandbox_compiled(self):
"""Checks whether the syscall sandbox was compiled."""
return self.config["components"].getboolean("ENABLE_SYSCALL_SANDBOX")

822
miner_imports/test_framework/test_node.py Executable file
View File

@@ -0,0 +1,822 @@
#!/usr/bin/env python3
# Copyright (c) 2017-2021 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Class for bitcoind node under test"""
import contextlib
import decimal
import errno
from enum import Enum
import http.client
import json
import logging
import os
import re
import subprocess
import tempfile
import time
import urllib.parse
import collections
import shlex
import sys
from pathlib import Path
from .authproxy import JSONRPCException
from .descriptors import descsum_create
from .p2p import P2P_SUBVERSION
from .util import (
MAX_NODES,
assert_equal,
append_config,
delete_cookie_file,
get_auth_cookie,
get_rpc_proxy,
rpc_url,
wait_until_helper,
p2p_port,
EncodeDecimal,
)
BITCOIND_PROC_WAIT_TIMEOUT = 60
class FailedToStartError(Exception):
"""Raised when a node fails to start correctly."""
class ErrorMatch(Enum):
FULL_TEXT = 1
FULL_REGEX = 2
PARTIAL_REGEX = 3
class TestNode():
"""A class for representing a bitcoind node under test.
This class contains:
- state about the node (whether it's running, etc)
- a Python subprocess.Popen object representing the running process
- an RPC connection to the node
- one or more P2P connections to the node
To make things easier for the test writer, any unrecognised messages will
be dispatched to the RPC connection."""
def __init__(self, i, datadir, *, chain, rpchost, timewait, timeout_factor, bitcoind, bitcoin_cli, coverage_dir, cwd, extra_conf=None, extra_args=None, use_cli=False, start_perf=False, use_valgrind=False, version=None, descriptors=False):
"""
Kwargs:
start_perf (bool): If True, begin profiling the node with `perf` as soon as
the node starts.
"""
self.index = i
self.p2p_conn_index = 1
self.datadir = datadir
self.bitcoinconf = os.path.join(self.datadir, "bitcoin.conf")
self.stdout_dir = os.path.join(self.datadir, "stdout")
self.stderr_dir = os.path.join(self.datadir, "stderr")
self.chain = chain
self.rpchost = rpchost
self.rpc_timeout = timewait
self.binary = bitcoind
self.coverage_dir = coverage_dir
self.cwd = cwd
self.descriptors = descriptors
if extra_conf is not None:
append_config(datadir, extra_conf)
# Most callers will just need to add extra args to the standard list below.
# For those callers that need more flexibility, they can just set the args property directly.
# Note that common args are set in the config file (see initialize_datadir)
self.extra_args = extra_args
self.version = version
# Configuration for logging is set as command-line args rather than in the bitcoin.conf file.
# This means that starting a bitcoind using the temp dir to debug a failed test won't
# spam debug.log.
self.args = [
self.binary,
"-datadir=" + self.datadir,
"-logtimemicros",
"-debug",
"-debugexclude=libevent",
"-debugexclude=leveldb",
"-uacomment=testnode%d" % i,
]
if use_valgrind:
default_suppressions_file = os.path.join(
os.path.dirname(os.path.realpath(__file__)),
"..", "..", "..", "contrib", "valgrind.supp")
suppressions_file = os.getenv("VALGRIND_SUPPRESSIONS_FILE",
default_suppressions_file)
self.args = ["valgrind", "--suppressions={}".format(suppressions_file),
"--gen-suppressions=all", "--exit-on-first-error=yes",
"--error-exitcode=1", "--quiet"] + self.args
if self.version_is_at_least(190000):
self.args.append("-logthreadnames")
if self.version_is_at_least(219900):
self.args.append("-logsourcelocations")
self.cli = TestNodeCLI(bitcoin_cli, self.datadir)
self.use_cli = use_cli
self.start_perf = start_perf
self.running = False
self.process = None
self.rpc_connected = False
self.rpc = None
self.url = None
self.log = logging.getLogger('TestFramework.node%d' % i)
self.cleanup_on_exit = True # Whether to kill the node when this object goes away
# Cache perf subprocesses here by their data output filename.
self.perf_subprocesses = {}
self.p2ps = []
self.timeout_factor = timeout_factor
AddressKeyPair = collections.namedtuple('AddressKeyPair', ['address', 'key'])
PRIV_KEYS = [
# address , privkey
AddressKeyPair('mjTkW3DjgyZck4KbiRusZsqTgaYTxdSz6z', 'cVpF924EspNh8KjYsfhgY96mmxvT6DgdWiTYMtMjuM74hJaU5psW'),
AddressKeyPair('msX6jQXvxiNhx3Q62PKeLPrhrqZQdSimTg', 'cUxsWyKyZ9MAQTaAhUQWJmBbSvHMwSmuv59KgxQV7oZQU3PXN3KE'),
AddressKeyPair('mnonCMyH9TmAsSj3M59DsbH8H63U3RKoFP', 'cTrh7dkEAeJd6b3MRX9bZK8eRmNqVCMH3LSUkE3dSFDyzjU38QxK'),
AddressKeyPair('mqJupas8Dt2uestQDvV2NH3RU8uZh2dqQR', 'cVuKKa7gbehEQvVq717hYcbE9Dqmq7KEBKqWgWrYBa2CKKrhtRim'),
AddressKeyPair('msYac7Rvd5ywm6pEmkjyxhbCDKqWsVeYws', 'cQDCBuKcjanpXDpCqacNSjYfxeQj8G6CAtH1Dsk3cXyqLNC4RPuh'),
AddressKeyPair('n2rnuUnwLgXqf9kk2kjvVm8R5BZK1yxQBi', 'cQakmfPSLSqKHyMFGwAqKHgWUiofJCagVGhiB4KCainaeCSxeyYq'),
AddressKeyPair('myzuPxRwsf3vvGzEuzPfK9Nf2RfwauwYe6', 'cQMpDLJwA8DBe9NcQbdoSb1BhmFxVjWD5gRyrLZCtpuF9Zi3a9RK'),
AddressKeyPair('mumwTaMtbxEPUswmLBBN3vM9oGRtGBrys8', 'cSXmRKXVcoouhNNVpcNKFfxsTsToY5pvB9DVsFksF1ENunTzRKsy'),
AddressKeyPair('mpV7aGShMkJCZgbW7F6iZgrvuPHjZjH9qg', 'cSoXt6tm3pqy43UMabY6eUTmR3eSUYFtB2iNQDGgb3VUnRsQys2k'),
AddressKeyPair('mq4fBNdckGtvY2mijd9am7DRsbRB4KjUkf', 'cN55daf1HotwBAgAKWVgDcoppmUNDtQSfb7XLutTLeAgVc3u8hik'),
AddressKeyPair('mpFAHDjX7KregM3rVotdXzQmkbwtbQEnZ6', 'cT7qK7g1wkYEMvKowd2ZrX1E5f6JQ7TM246UfqbCiyF7kZhorpX3'),
AddressKeyPair('mzRe8QZMfGi58KyWCse2exxEFry2sfF2Y7', 'cPiRWE8KMjTRxH1MWkPerhfoHFn5iHPWVK5aPqjW8NxmdwenFinJ'),
]
def get_deterministic_priv_key(self):
"""Return a deterministic priv key in base58, that only depends on the node's index"""
assert len(self.PRIV_KEYS) == MAX_NODES
return self.PRIV_KEYS[self.index]
def _node_msg(self, msg: str) -> str:
"""Return a modified msg that identifies this node by its index as a debugging aid."""
return "[node %d] %s" % (self.index, msg)
def _raise_assertion_error(self, msg: str):
"""Raise an AssertionError with msg modified to identify this node."""
raise AssertionError(self._node_msg(msg))
def __del__(self):
# Ensure that we don't leave any bitcoind processes lying around after
# the test ends
if self.process and self.cleanup_on_exit:
# Should only happen on test failure
# Avoid using logger, as that may have already been shutdown when
# this destructor is called.
print(self._node_msg("Cleaning up leftover process"))
self.process.kill()
def __getattr__(self, name):
"""Dispatches any unrecognised messages to the RPC connection or a CLI instance."""
if self.use_cli:
return getattr(RPCOverloadWrapper(self.cli, True, self.descriptors), name)
else:
assert self.rpc_connected and self.rpc is not None, self._node_msg("Error: no RPC connection")
return getattr(RPCOverloadWrapper(self.rpc, descriptors=self.descriptors), name)
def start(self, extra_args=None, *, cwd=None, stdout=None, stderr=None, **kwargs):
"""Start the node."""
if extra_args is None:
extra_args = self.extra_args
# Add a new stdout and stderr file each time bitcoind is started
if stderr is None:
stderr = tempfile.NamedTemporaryFile(dir=self.stderr_dir, delete=False)
if stdout is None:
stdout = tempfile.NamedTemporaryFile(dir=self.stdout_dir, delete=False)
self.stderr = stderr
self.stdout = stdout
if cwd is None:
cwd = self.cwd
# Delete any existing cookie file -- if such a file exists (eg due to
# unclean shutdown), it will get overwritten anyway by bitcoind, and
# potentially interfere with our attempt to authenticate
delete_cookie_file(self.datadir, self.chain)
# add environment variable LIBC_FATAL_STDERR_=1 so that libc errors are written to stderr and not the terminal
subp_env = dict(os.environ, LIBC_FATAL_STDERR_="1")
self.process = subprocess.Popen(self.args + extra_args, env=subp_env, stdout=stdout, stderr=stderr, cwd=cwd, **kwargs)
self.running = True
self.log.debug("bitcoind started, waiting for RPC to come up")
if self.start_perf:
self._start_perf()
def wait_for_rpc_connection(self):
"""Sets up an RPC connection to the bitcoind process. Returns False if unable to connect."""
# Poll at a rate of four times per second
poll_per_s = 4
for _ in range(poll_per_s * self.rpc_timeout):
if self.process.poll() is not None:
raise FailedToStartError(self._node_msg(
'bitcoind exited with status {} during initialization'.format(self.process.returncode)))
try:
rpc = get_rpc_proxy(
rpc_url(self.datadir, self.index, self.chain, self.rpchost),
self.index,
timeout=self.rpc_timeout // 2, # Shorter timeout to allow for one retry in case of ETIMEDOUT
coveragedir=self.coverage_dir,
)
rpc.getblockcount()
# If the call to getblockcount() succeeds then the RPC connection is up
if self.version_is_at_least(190000):
# getmempoolinfo.loaded is available since commit
# bb8ae2c (version 0.19.0)
wait_until_helper(lambda: rpc.getmempoolinfo()['loaded'], timeout_factor=self.timeout_factor)
# Wait for the node to finish reindex, block import, and
# loading the mempool. Usually importing happens fast or
# even "immediate" when the node is started. However, there
# is no guarantee and sometimes ThreadImport might finish
# later. This is going to cause intermittent test failures,
# because generally the tests assume the node is fully
# ready after being started.
#
# For example, the node will reject block messages from p2p
# when it is still importing with the error "Unexpected
# block message received"
#
# The wait is done here to make tests as robust as possible
# and prevent racy tests and intermittent failures as much
# as possible. Some tests might not need this, but the
# overhead is trivial, and the added guarantees are worth
# the minimal performance cost.
self.log.debug("RPC successfully started")
if self.use_cli:
return
self.rpc = rpc
self.rpc_connected = True
self.url = self.rpc.rpc_url
return
except JSONRPCException as e: # Initialization phase
# -28 RPC in warmup
# -342 Service unavailable, RPC server started but is shutting down due to error
if e.error['code'] != -28 and e.error['code'] != -342:
raise # unknown JSON RPC exception
except ConnectionResetError:
# This might happen when the RPC server is in warmup, but shut down before the call to getblockcount
# succeeds. Try again to properly raise the FailedToStartError
pass
except OSError as e:
if e.errno == errno.ETIMEDOUT:
pass # Treat identical to ConnectionResetError
elif e.errno == errno.ECONNREFUSED:
pass # Port not yet open?
else:
raise # unknown OS error
except ValueError as e: # cookie file not found and no rpcuser or rpcpassword; bitcoind is still starting
if "No RPC credentials" not in str(e):
raise
time.sleep(1.0 / poll_per_s)
self._raise_assertion_error("Unable to connect to bitcoind after {}s".format(self.rpc_timeout))
def wait_for_cookie_credentials(self):
"""Ensures auth cookie credentials can be read, e.g. for testing CLI with -rpcwait before RPC connection is up."""
self.log.debug("Waiting for cookie credentials")
# Poll at a rate of four times per second.
poll_per_s = 4
for _ in range(poll_per_s * self.rpc_timeout):
try:
get_auth_cookie(self.datadir, self.chain)
self.log.debug("Cookie credentials successfully retrieved")
return
except ValueError: # cookie file not found and no rpcuser or rpcpassword; bitcoind is still starting
pass # so we continue polling until RPC credentials are retrieved
time.sleep(1.0 / poll_per_s)
self._raise_assertion_error("Unable to retrieve cookie credentials after {}s".format(self.rpc_timeout))
def generate(self, nblocks, maxtries=1000000, **kwargs):
self.log.debug("TestNode.generate() dispatches `generate` call to `generatetoaddress`")
return self.generatetoaddress(nblocks=nblocks, address=self.get_deterministic_priv_key().address, maxtries=maxtries, **kwargs)
def generateblock(self, *args, invalid_call, **kwargs):
assert not invalid_call
return self.__getattr__('generateblock')(*args, **kwargs)
def generatetoaddress(self, *args, invalid_call, **kwargs):
assert not invalid_call
return self.__getattr__('generatetoaddress')(*args, **kwargs)
def generatetodescriptor(self, *args, invalid_call, **kwargs):
assert not invalid_call
return self.__getattr__('generatetodescriptor')(*args, **kwargs)
def get_wallet_rpc(self, wallet_name):
if self.use_cli:
return RPCOverloadWrapper(self.cli("-rpcwallet={}".format(wallet_name)), True, self.descriptors)
else:
assert self.rpc_connected and self.rpc, self._node_msg("RPC not connected")
wallet_path = "wallet/{}".format(urllib.parse.quote(wallet_name))
return RPCOverloadWrapper(self.rpc / wallet_path, descriptors=self.descriptors)
def version_is_at_least(self, ver):
return self.version is None or self.version >= ver
def stop_node(self, expected_stderr='', *, wait=0, wait_until_stopped=True):
"""Stop the node."""
if not self.running:
return
self.log.debug("Stopping node")
try:
# Do not use wait argument when testing older nodes, e.g. in feature_backwards_compatibility.py
if self.version_is_at_least(180000):
self.stop(wait=wait)
else:
self.stop()
except http.client.CannotSendRequest:
self.log.exception("Unable to stop node.")
# If there are any running perf processes, stop them.
for profile_name in tuple(self.perf_subprocesses.keys()):
self._stop_perf(profile_name)
# Check that stderr is as expected
self.stderr.seek(0)
stderr = self.stderr.read().decode('utf-8').strip()
if stderr != expected_stderr:
raise AssertionError("Unexpected stderr {} != {}".format(stderr, expected_stderr))
self.stdout.close()
self.stderr.close()
del self.p2ps[:]
if wait_until_stopped:
self.wait_until_stopped()
def is_node_stopped(self):
"""Checks whether the node has stopped.
Returns True if the node has stopped. False otherwise.
This method is responsible for freeing resources (self.process)."""
if not self.running:
return True
return_code = self.process.poll()
if return_code is None:
return False
# process has stopped. Assert that it didn't return an error code.
assert return_code == 0, self._node_msg(
"Node returned non-zero exit code (%d) when stopping" % return_code)
self.running = False
self.process = None
self.rpc_connected = False
self.rpc = None
self.log.debug("Node stopped")
return True
def wait_until_stopped(self, timeout=BITCOIND_PROC_WAIT_TIMEOUT):
wait_until_helper(self.is_node_stopped, timeout=timeout, timeout_factor=self.timeout_factor)
@property
def chain_path(self) -> Path:
return Path(self.datadir) / self.chain
@property
def debug_log_path(self) -> Path:
return self.chain_path / 'debug.log'
def debug_log_bytes(self) -> int:
with open(self.debug_log_path, encoding='utf-8') as dl:
dl.seek(0, 2)
return dl.tell()
@contextlib.contextmanager
def assert_debug_log(self, expected_msgs, unexpected_msgs=None, timeout=2):
if unexpected_msgs is None:
unexpected_msgs = []
time_end = time.time() + timeout * self.timeout_factor
prev_size = self.debug_log_bytes()
yield
while True:
found = True
with open(self.debug_log_path, encoding='utf-8') as dl:
dl.seek(prev_size)
log = dl.read()
print_log = " - " + "\n - ".join(log.splitlines())
for unexpected_msg in unexpected_msgs:
if re.search(re.escape(unexpected_msg), log, flags=re.MULTILINE):
self._raise_assertion_error('Unexpected message "{}" partially matches log:\n\n{}\n\n'.format(unexpected_msg, print_log))
for expected_msg in expected_msgs:
if re.search(re.escape(expected_msg), log, flags=re.MULTILINE) is None:
found = False
if found:
return
if time.time() >= time_end:
break
time.sleep(0.05)
self._raise_assertion_error('Expected messages "{}" does not partially match log:\n\n{}\n\n'.format(str(expected_msgs), print_log))
@contextlib.contextmanager
def wait_for_debug_log(self, expected_msgs, timeout=60, ignore_case=False):
"""
Block until we see a particular debug log message fragment or until we exceed the timeout.
Return:
the number of log lines we encountered when matching
"""
time_end = time.time() + timeout * self.timeout_factor
prev_size = self.debug_log_bytes()
re_flags = re.MULTILINE | (re.IGNORECASE if ignore_case else 0)
yield
while True:
found = True
with open(self.debug_log_path, encoding='utf-8') as dl:
dl.seek(prev_size)
log = dl.read()
for expected_msg in expected_msgs:
if re.search(re.escape(expected_msg), log, flags=re_flags) is None:
found = False
if found:
return
if time.time() >= time_end:
print_log = " - " + "\n - ".join(log.splitlines())
break
# No sleep here because we want to detect the message fragment as fast as
# possible.
self._raise_assertion_error(
'Expected messages "{}" does not partially match log:\n\n{}\n\n'.format(
str(expected_msgs), print_log))
@contextlib.contextmanager
def profile_with_perf(self, profile_name: str):
"""
Context manager that allows easy profiling of node activity using `perf`.
See `test/functional/README.md` for details on perf usage.
Args:
profile_name: This string will be appended to the
profile data filename generated by perf.
"""
subp = self._start_perf(profile_name)
yield
if subp:
self._stop_perf(profile_name)
def _start_perf(self, profile_name=None):
"""Start a perf process to profile this node.
Returns the subprocess running perf."""
subp = None
def test_success(cmd):
return subprocess.call(
# shell=True required for pipe use below
cmd, shell=True,
stderr=subprocess.DEVNULL, stdout=subprocess.DEVNULL) == 0
if not sys.platform.startswith('linux'):
self.log.warning("Can't profile with perf; only available on Linux platforms")
return None
if not test_success('which perf'):
self.log.warning("Can't profile with perf; must install perf-tools")
return None
if not test_success('readelf -S {} | grep .debug_str'.format(shlex.quote(self.binary))):
self.log.warning(
"perf output won't be very useful without debug symbols compiled into bitcoind")
output_path = tempfile.NamedTemporaryFile(
dir=self.datadir,
prefix="{}.perf.data.".format(profile_name or 'test'),
delete=False,
).name
cmd = [
'perf', 'record',
'-g', # Record the callgraph.
'--call-graph', 'dwarf', # Compatibility for gcc's --fomit-frame-pointer.
'-F', '101', # Sampling frequency in Hz.
'-p', str(self.process.pid),
'-o', output_path,
]
subp = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
self.perf_subprocesses[profile_name] = subp
return subp
def _stop_perf(self, profile_name):
"""Stop (and pop) a perf subprocess."""
subp = self.perf_subprocesses.pop(profile_name)
output_path = subp.args[subp.args.index('-o') + 1]
subp.terminate()
subp.wait(timeout=10)
stderr = subp.stderr.read().decode()
if 'Consider tweaking /proc/sys/kernel/perf_event_paranoid' in stderr:
self.log.warning(
"perf couldn't collect data! Try "
"'sudo sysctl -w kernel.perf_event_paranoid=-1'")
else:
report_cmd = "perf report -i {}".format(output_path)
self.log.info("See perf output by running '{}'".format(report_cmd))
def assert_start_raises_init_error(self, extra_args=None, expected_msg=None, match=ErrorMatch.FULL_TEXT, *args, **kwargs):
"""Attempt to start the node and expect it to raise an error.
extra_args: extra arguments to pass through to bitcoind
expected_msg: regex that stderr should match when bitcoind fails
Will throw if bitcoind starts without an error.
Will throw if an expected_msg is provided and it does not match bitcoind's stdout."""
with tempfile.NamedTemporaryFile(dir=self.stderr_dir, delete=False) as log_stderr, \
tempfile.NamedTemporaryFile(dir=self.stdout_dir, delete=False) as log_stdout:
try:
self.start(extra_args, stdout=log_stdout, stderr=log_stderr, *args, **kwargs)
ret = self.process.wait(timeout=self.rpc_timeout)
self.log.debug(self._node_msg(f'bitcoind exited with status {ret} during initialization'))
assert ret != 0 # Exit code must indicate failure
self.running = False
self.process = None
# Check stderr for expected message
if expected_msg is not None:
log_stderr.seek(0)
stderr = log_stderr.read().decode('utf-8').strip()
if match == ErrorMatch.PARTIAL_REGEX:
if re.search(expected_msg, stderr, flags=re.MULTILINE) is None:
self._raise_assertion_error(
'Expected message "{}" does not partially match stderr:\n"{}"'.format(expected_msg, stderr))
elif match == ErrorMatch.FULL_REGEX:
if re.fullmatch(expected_msg, stderr) is None:
self._raise_assertion_error(
'Expected message "{}" does not fully match stderr:\n"{}"'.format(expected_msg, stderr))
elif match == ErrorMatch.FULL_TEXT:
if expected_msg != stderr:
self._raise_assertion_error(
'Expected message "{}" does not fully match stderr:\n"{}"'.format(expected_msg, stderr))
except subprocess.TimeoutExpired:
self.process.kill()
self.running = False
self.process = None
assert_msg = f'bitcoind should have exited within {self.rpc_timeout}s '
if expected_msg is None:
assert_msg += "with an error"
else:
assert_msg += "with expected error " + expected_msg
self._raise_assertion_error(assert_msg)
def add_p2p_connection(self, p2p_conn, *, wait_for_verack=True, **kwargs):
"""Add an inbound p2p connection to the node.
This method adds the p2p connection to the self.p2ps list and also
returns the connection to the caller."""
if 'dstport' not in kwargs:
kwargs['dstport'] = p2p_port(self.index)
if 'dstaddr' not in kwargs:
kwargs['dstaddr'] = '127.0.0.1'
p2p_conn.peer_connect(**kwargs, net=self.chain, timeout_factor=self.timeout_factor)()
self.p2ps.append(p2p_conn)
p2p_conn.wait_until(lambda: p2p_conn.is_connected, check_connected=False)
if wait_for_verack:
# Wait for the node to send us the version and verack
p2p_conn.wait_for_verack()
# At this point we have sent our version message and received the version and verack, however the full node
# has not yet received the verack from us (in reply to their version). So, the connection is not yet fully
# established (fSuccessfullyConnected).
#
# This shouldn't lead to any issues when sending messages, since the verack will be in-flight before the
# message we send. However, it might lead to races where we are expecting to receive a message. E.g. a
# transaction that will be added to the mempool as soon as we return here.
#
# So syncing here is redundant when we only want to send a message, but the cost is low (a few milliseconds)
# in comparison to the upside of making tests less fragile and unexpected intermittent errors less likely.
p2p_conn.sync_with_ping()
# Consistency check that the Bitcoin Core has received our user agent string. This checks the
# node's newest peer. It could be racy if another Bitcoin Core node has connected since we opened
# our connection, but we don't expect that to happen.
assert_equal(self.getpeerinfo()[-1]['subver'], P2P_SUBVERSION)
return p2p_conn
def add_outbound_p2p_connection(self, p2p_conn, *, p2p_idx, connection_type="outbound-full-relay", **kwargs):
"""Add an outbound p2p connection from node. Must be an
"outbound-full-relay", "block-relay-only", "addr-fetch" or "feeler" connection.
This method adds the p2p connection to the self.p2ps list and returns
the connection to the caller.
"""
def addconnection_callback(address, port):
self.log.debug("Connecting to %s:%d %s" % (address, port, connection_type))
self.addconnection('%s:%d' % (address, port), connection_type)
p2p_conn.peer_accept_connection(connect_cb=addconnection_callback, connect_id=p2p_idx + 1, net=self.chain, timeout_factor=self.timeout_factor, **kwargs)()
if connection_type == "feeler":
# feeler connections are closed as soon as the node receives a `version` message
p2p_conn.wait_until(lambda: p2p_conn.message_count["version"] == 1, check_connected=False)
p2p_conn.wait_until(lambda: not p2p_conn.is_connected, check_connected=False)
else:
p2p_conn.wait_for_connect()
self.p2ps.append(p2p_conn)
p2p_conn.wait_for_verack()
p2p_conn.sync_with_ping()
return p2p_conn
def num_test_p2p_connections(self):
"""Return number of test framework p2p connections to the node."""
return len([peer for peer in self.getpeerinfo() if peer['subver'] == P2P_SUBVERSION])
def disconnect_p2ps(self):
"""Close all p2p connections to the node."""
for p in self.p2ps:
p.peer_disconnect()
del self.p2ps[:]
wait_until_helper(lambda: self.num_test_p2p_connections() == 0, timeout_factor=self.timeout_factor)
class TestNodeCLIAttr:
def __init__(self, cli, command):
self.cli = cli
self.command = command
def __call__(self, *args, **kwargs):
return self.cli.send_cli(self.command, *args, **kwargs)
def get_request(self, *args, **kwargs):
return lambda: self(*args, **kwargs)
def arg_to_cli(arg):
if isinstance(arg, bool):
return str(arg).lower()
elif arg is None:
return 'null'
elif isinstance(arg, dict) or isinstance(arg, list):
return json.dumps(arg, default=EncodeDecimal)
else:
return str(arg)
class TestNodeCLI():
"""Interface to bitcoin-cli for an individual node"""
def __init__(self, binary, datadir):
self.options = []
self.binary = binary
self.datadir = datadir
self.input = None
self.log = logging.getLogger('TestFramework.bitcoincli')
def __call__(self, *options, input=None):
# TestNodeCLI is callable with bitcoin-cli command-line options
cli = TestNodeCLI(self.binary, self.datadir)
cli.options = [str(o) for o in options]
cli.input = input
return cli
def __getattr__(self, command):
return TestNodeCLIAttr(self, command)
def batch(self, requests):
results = []
for request in requests:
try:
results.append(dict(result=request()))
except JSONRPCException as e:
results.append(dict(error=e))
return results
def send_cli(self, command=None, *args, **kwargs):
"""Run bitcoin-cli command. Deserializes returned string as python object."""
pos_args = [arg_to_cli(arg) for arg in args]
named_args = [str(key) + "=" + arg_to_cli(value) for (key, value) in kwargs.items()]
assert not (pos_args and named_args), "Cannot use positional arguments and named arguments in the same bitcoin-cli call"
p_args = [self.binary, "-datadir=" + self.datadir] + self.options
if named_args:
p_args += ["-named"]
if command is not None:
p_args += [command]
p_args += pos_args + named_args
self.log.debug("Running bitcoin-cli {}".format(p_args[2:]))
process = subprocess.Popen(p_args, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)
cli_stdout, cli_stderr = process.communicate(input=self.input)
returncode = process.poll()
if returncode:
match = re.match(r'error code: ([-0-9]+)\nerror message:\n(.*)', cli_stderr)
if match:
code, message = match.groups()
raise JSONRPCException(dict(code=int(code), message=message))
# Ignore cli_stdout, raise with cli_stderr
raise subprocess.CalledProcessError(returncode, self.binary, output=cli_stderr)
try:
return json.loads(cli_stdout, parse_float=decimal.Decimal)
except (json.JSONDecodeError, decimal.InvalidOperation):
return cli_stdout.rstrip("\n")
class RPCOverloadWrapper():
def __init__(self, rpc, cli=False, descriptors=False):
self.rpc = rpc
self.is_cli = cli
self.descriptors = descriptors
def __getattr__(self, name):
return getattr(self.rpc, name)
def createwallet_passthrough(self, *args, **kwargs):
return self.__getattr__("createwallet")(*args, **kwargs)
def createwallet(self, wallet_name, disable_private_keys=None, blank=None, passphrase='', avoid_reuse=None, descriptors=None, load_on_startup=None, external_signer=None):
if descriptors is None:
descriptors = self.descriptors
return self.__getattr__('createwallet')(wallet_name, disable_private_keys, blank, passphrase, avoid_reuse, descriptors, load_on_startup, external_signer)
def importprivkey(self, privkey, label=None, rescan=None):
wallet_info = self.getwalletinfo()
if 'descriptors' not in wallet_info or ('descriptors' in wallet_info and not wallet_info['descriptors']):
return self.__getattr__('importprivkey')(privkey, label, rescan)
desc = descsum_create('combo(' + privkey + ')')
req = [{
'desc': desc,
'timestamp': 0 if rescan else 'now',
'label': label if label else ''
}]
import_res = self.importdescriptors(req)
if not import_res[0]['success']:
raise JSONRPCException(import_res[0]['error'])
def addmultisigaddress(self, nrequired, keys, label=None, address_type=None):
wallet_info = self.getwalletinfo()
if 'descriptors' not in wallet_info or ('descriptors' in wallet_info and not wallet_info['descriptors']):
return self.__getattr__('addmultisigaddress')(nrequired, keys, label, address_type)
cms = self.createmultisig(nrequired, keys, address_type)
req = [{
'desc': cms['descriptor'],
'timestamp': 0,
'label': label if label else ''
}]
import_res = self.importdescriptors(req)
if not import_res[0]['success']:
raise JSONRPCException(import_res[0]['error'])
return cms
def importpubkey(self, pubkey, label=None, rescan=None):
wallet_info = self.getwalletinfo()
if 'descriptors' not in wallet_info or ('descriptors' in wallet_info and not wallet_info['descriptors']):
return self.__getattr__('importpubkey')(pubkey, label, rescan)
desc = descsum_create('combo(' + pubkey + ')')
req = [{
'desc': desc,
'timestamp': 0 if rescan else 'now',
'label': label if label else ''
}]
import_res = self.importdescriptors(req)
if not import_res[0]['success']:
raise JSONRPCException(import_res[0]['error'])
def importaddress(self, address, label=None, rescan=None, p2sh=None):
wallet_info = self.getwalletinfo()
if 'descriptors' not in wallet_info or ('descriptors' in wallet_info and not wallet_info['descriptors']):
return self.__getattr__('importaddress')(address, label, rescan, p2sh)
is_hex = False
try:
int(address ,16)
is_hex = True
desc = descsum_create('raw(' + address + ')')
except:
desc = descsum_create('addr(' + address + ')')
reqs = [{
'desc': desc,
'timestamp': 0 if rescan else 'now',
'label': label if label else ''
}]
if is_hex and p2sh:
reqs.append({
'desc': descsum_create('p2sh(raw(' + address + '))'),
'timestamp': 0 if rescan else 'now',
'label': label if label else ''
})
import_res = self.importdescriptors(reqs)
for res in import_res:
if not res['success']:
raise JSONRPCException(res['error'])

75
miner_imports/test_framework/test_shell.py Normal file
View File

@@ -0,0 +1,75 @@
#!/usr/bin/env python3
# Copyright (c) 2019 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
from test_framework.test_framework import BitcoinTestFramework
class TestShell:
"""Wrapper Class for BitcoinTestFramework.
The TestShell class extends the BitcoinTestFramework
rpc & daemon process management functionality to external
python environments.
It is a singleton class, which ensures that users only
start a single TestShell at a time."""
class __TestShell(BitcoinTestFramework):
def set_test_params(self):
pass
def run_test(self):
pass
def setup(self, **kwargs):
if self.running:
print("TestShell is already running!")
return
# Num_nodes parameter must be set
# by BitcoinTestFramework child class.
self.num_nodes = 1
# User parameters override default values.
for key, value in kwargs.items():
if hasattr(self, key):
setattr(self, key, value)
elif hasattr(self.options, key):
setattr(self.options, key, value)
else:
raise KeyError(key + " not a valid parameter key!")
super().setup()
self.running = True
return self
def shutdown(self):
if not self.running:
print("TestShell is not running!")
else:
super().shutdown()
self.running = False
def reset(self):
if self.running:
print("Shutdown TestShell before resetting!")
else:
self.num_nodes = None
super().__init__()
instance = None
def __new__(cls):
# This implementation enforces singleton pattern, and will return the
# previously initialized instance if available
if not TestShell.instance:
TestShell.instance = TestShell.__TestShell()
TestShell.instance.running = False
return TestShell.instance
def __getattr__(self, name):
return getattr(self.instance, name)
def __setattr__(self, name, value):
return setattr(self.instance, name, value)

629
miner_imports/test_framework/util.py Normal file
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@@ -0,0 +1,629 @@
#!/usr/bin/env python3
# Copyright (c) 2014-2021 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Helpful routines for regression testing."""
from base64 import b64encode
from decimal import Decimal, ROUND_DOWN
from subprocess import CalledProcessError
import hashlib
import inspect
import json
import logging
import os
import re
import time
import unittest
from . import coverage
from .authproxy import AuthServiceProxy, JSONRPCException
from typing import Callable, Optional
logger = logging.getLogger("TestFramework.utils")
# Assert functions
##################
def assert_approx(v, vexp, vspan=0.00001):
"""Assert that `v` is within `vspan` of `vexp`"""
if v < vexp - vspan:
raise AssertionError("%s < [%s..%s]" % (str(v), str(vexp - vspan), str(vexp + vspan)))
if v > vexp + vspan:
raise AssertionError("%s > [%s..%s]" % (str(v), str(vexp - vspan), str(vexp + vspan)))
def assert_fee_amount(fee, tx_size, feerate_BTC_kvB):
"""Assert the fee is in range."""
assert isinstance(tx_size, int)
target_fee = get_fee(tx_size, feerate_BTC_kvB)
if fee < target_fee:
raise AssertionError("Fee of %s BTC too low! (Should be %s BTC)" % (str(fee), str(target_fee)))
# allow the wallet's estimation to be at most 2 bytes off
high_fee = get_fee(tx_size + 2, feerate_BTC_kvB)
if fee > high_fee:
raise AssertionError("Fee of %s BTC too high! (Should be %s BTC)" % (str(fee), str(target_fee)))
def assert_equal(thing1, thing2, *args):
if thing1 != thing2 or any(thing1 != arg for arg in args):
raise AssertionError("not(%s)" % " == ".join(str(arg) for arg in (thing1, thing2) + args))
def assert_greater_than(thing1, thing2):
if thing1 <= thing2:
raise AssertionError("%s <= %s" % (str(thing1), str(thing2)))
def assert_greater_than_or_equal(thing1, thing2):
if thing1 < thing2:
raise AssertionError("%s < %s" % (str(thing1), str(thing2)))
def assert_raises(exc, fun, *args, **kwds):
assert_raises_message(exc, None, fun, *args, **kwds)
def assert_raises_message(exc, message, fun, *args, **kwds):
try:
fun(*args, **kwds)
except JSONRPCException:
raise AssertionError("Use assert_raises_rpc_error() to test RPC failures")
except exc as e:
if message is not None and message not in e.error['message']:
raise AssertionError(
"Expected substring not found in error message:\nsubstring: '{}'\nerror message: '{}'.".format(
message, e.error['message']))
except Exception as e:
raise AssertionError("Unexpected exception raised: " + type(e).__name__)
else:
raise AssertionError("No exception raised")
def assert_raises_process_error(returncode: int, output: str, fun: Callable, *args, **kwds):
"""Execute a process and asserts the process return code and output.
Calls function `fun` with arguments `args` and `kwds`. Catches a CalledProcessError
and verifies that the return code and output are as expected. Throws AssertionError if
no CalledProcessError was raised or if the return code and output are not as expected.
Args:
returncode: the process return code.
output: [a substring of] the process output.
fun: the function to call. This should execute a process.
args*: positional arguments for the function.
kwds**: named arguments for the function.
"""
try:
fun(*args, **kwds)
except CalledProcessError as e:
if returncode != e.returncode:
raise AssertionError("Unexpected returncode %i" % e.returncode)
if output not in e.output:
raise AssertionError("Expected substring not found:" + e.output)
else:
raise AssertionError("No exception raised")
def assert_raises_rpc_error(code: Optional[int], message: Optional[str], fun: Callable, *args, **kwds):
"""Run an RPC and verify that a specific JSONRPC exception code and message is raised.
Calls function `fun` with arguments `args` and `kwds`. Catches a JSONRPCException
and verifies that the error code and message are as expected. Throws AssertionError if
no JSONRPCException was raised or if the error code/message are not as expected.
Args:
code: the error code returned by the RPC call (defined in src/rpc/protocol.h).
Set to None if checking the error code is not required.
message: [a substring of] the error string returned by the RPC call.
Set to None if checking the error string is not required.
fun: the function to call. This should be the name of an RPC.
args*: positional arguments for the function.
kwds**: named arguments for the function.
"""
assert try_rpc(code, message, fun, *args, **kwds), "No exception raised"
def try_rpc(code, message, fun, *args, **kwds):
"""Tries to run an rpc command.
Test against error code and message if the rpc fails.
Returns whether a JSONRPCException was raised."""
try:
fun(*args, **kwds)
except JSONRPCException as e:
# JSONRPCException was thrown as expected. Check the code and message values are correct.
if (code is not None) and (code != e.error["code"]):
raise AssertionError("Unexpected JSONRPC error code %i" % e.error["code"])
if (message is not None) and (message not in e.error['message']):
raise AssertionError(
"Expected substring not found in error message:\nsubstring: '{}'\nerror message: '{}'.".format(
message, e.error['message']))
return True
except Exception as e:
raise AssertionError("Unexpected exception raised: " + type(e).__name__)
else:
return False
def assert_is_hex_string(string):
try:
int(string, 16)
except Exception as e:
raise AssertionError("Couldn't interpret %r as hexadecimal; raised: %s" % (string, e))
def assert_is_hash_string(string, length=64):
if not isinstance(string, str):
raise AssertionError("Expected a string, got type %r" % type(string))
elif length and len(string) != length:
raise AssertionError("String of length %d expected; got %d" % (length, len(string)))
elif not re.match('[abcdef0-9]+$', string):
raise AssertionError("String %r contains invalid characters for a hash." % string)
def assert_array_result(object_array, to_match, expected, should_not_find=False):
"""
Pass in array of JSON objects, a dictionary with key/value pairs
to match against, and another dictionary with expected key/value
pairs.
If the should_not_find flag is true, to_match should not be found
in object_array
"""
if should_not_find:
assert_equal(expected, {})
num_matched = 0
for item in object_array:
all_match = True
for key, value in to_match.items():
if item[key] != value:
all_match = False
if not all_match:
continue
elif should_not_find:
num_matched = num_matched + 1
for key, value in expected.items():
if item[key] != value:
raise AssertionError("%s : expected %s=%s" % (str(item), str(key), str(value)))
num_matched = num_matched + 1
if num_matched == 0 and not should_not_find:
raise AssertionError("No objects matched %s" % (str(to_match)))
if num_matched > 0 and should_not_find:
raise AssertionError("Objects were found %s" % (str(to_match)))
# Utility functions
###################
def check_json_precision():
"""Make sure json library being used does not lose precision converting BTC values"""
n = Decimal("20000000.00000003")
satoshis = int(json.loads(json.dumps(float(n))) * 1.0e8)
if satoshis != 2000000000000003:
raise RuntimeError("JSON encode/decode loses precision")
def EncodeDecimal(o):
if isinstance(o, Decimal):
return str(o)
raise TypeError(repr(o) + " is not JSON serializable")
def count_bytes(hex_string):
return len(bytearray.fromhex(hex_string))
def str_to_b64str(string):
return b64encode(string.encode('utf-8')).decode('ascii')
def ceildiv(a, b):
"""
Divide 2 ints and round up to next int rather than round down
Implementation requires python integers, which have a // operator that does floor division.
Other types like decimal.Decimal whose // operator truncates towards 0 will not work.
"""
assert isinstance(a, int)
assert isinstance(b, int)
return -(-a // b)
def get_fee(tx_size, feerate_btc_kvb):
"""Calculate the fee in BTC given a feerate is BTC/kvB. Reflects CFeeRate::GetFee"""
feerate_sat_kvb = int(feerate_btc_kvb * Decimal(1e8)) # Fee in sat/kvb as an int to avoid float precision errors
target_fee_sat = ceildiv(feerate_sat_kvb * tx_size, 1000) # Round calculated fee up to nearest sat
return target_fee_sat / Decimal(1e8) # Return result in BTC
def satoshi_round(amount):
return Decimal(amount).quantize(Decimal('0.00000001'), rounding=ROUND_DOWN)
def wait_until_helper(predicate, *, attempts=float('inf'), timeout=float('inf'), lock=None, timeout_factor=1.0):
"""Sleep until the predicate resolves to be True.
Warning: Note that this method is not recommended to be used in tests as it is
not aware of the context of the test framework. Using the `wait_until()` members
from `BitcoinTestFramework` or `P2PInterface` class ensures the timeout is
properly scaled. Furthermore, `wait_until()` from `P2PInterface` class in
`p2p.py` has a preset lock.
"""
if attempts == float('inf') and timeout == float('inf'):
timeout = 60
timeout = timeout * timeout_factor
attempt = 0
time_end = time.time() + timeout
while attempt < attempts and time.time() < time_end:
if lock:
with lock:
if predicate():
return
else:
if predicate():
return
attempt += 1
time.sleep(0.05)
# Print the cause of the timeout
predicate_source = "''''\n" + inspect.getsource(predicate) + "'''"
logger.error("wait_until() failed. Predicate: {}".format(predicate_source))
if attempt >= attempts:
raise AssertionError("Predicate {} not true after {} attempts".format(predicate_source, attempts))
elif time.time() >= time_end:
raise AssertionError("Predicate {} not true after {} seconds".format(predicate_source, timeout))
raise RuntimeError('Unreachable')
def sha256sum_file(filename):
h = hashlib.sha256()
with open(filename, 'rb') as f:
d = f.read(4096)
while len(d) > 0:
h.update(d)
d = f.read(4096)
return h.digest()
# RPC/P2P connection constants and functions
############################################
# The maximum number of nodes a single test can spawn
MAX_NODES = 12
# Don't assign rpc or p2p ports lower than this
PORT_MIN = int(os.getenv('TEST_RUNNER_PORT_MIN', default=11000))
# The number of ports to "reserve" for p2p and rpc, each
PORT_RANGE = 5000
class PortSeed:
# Must be initialized with a unique integer for each process
n = None
def get_rpc_proxy(url: str, node_number: int, *, timeout: int=None, coveragedir: str=None) -> coverage.AuthServiceProxyWrapper:
"""
Args:
url: URL of the RPC server to call
node_number: the node number (or id) that this calls to
Kwargs:
timeout: HTTP timeout in seconds
coveragedir: Directory
Returns:
AuthServiceProxy. convenience object for making RPC calls.
"""
proxy_kwargs = {}
if timeout is not None:
proxy_kwargs['timeout'] = int(timeout)
proxy = AuthServiceProxy(url, **proxy_kwargs)
coverage_logfile = coverage.get_filename(coveragedir, node_number) if coveragedir else None
return coverage.AuthServiceProxyWrapper(proxy, url, coverage_logfile)
def p2p_port(n):
assert n <= MAX_NODES
return PORT_MIN + n + (MAX_NODES * PortSeed.n) % (PORT_RANGE - 1 - MAX_NODES)
def rpc_port(n):
return PORT_MIN + PORT_RANGE + n + (MAX_NODES * PortSeed.n) % (PORT_RANGE - 1 - MAX_NODES)
def rpc_url(datadir, i, chain, rpchost):
rpc_u, rpc_p = get_auth_cookie(datadir, chain)
host = '127.0.0.1'
port = rpc_port(i)
if rpchost:
parts = rpchost.split(':')
if len(parts) == 2:
host, port = parts
else:
host = rpchost
return "http://%s:%s@%s:%d" % (rpc_u, rpc_p, host, int(port))
# Node functions
################
def initialize_datadir(dirname, n, chain, disable_autoconnect=True):
datadir = get_datadir_path(dirname, n)
if not os.path.isdir(datadir):
os.makedirs(datadir)
write_config(os.path.join(datadir, "bitcoin.conf"), n=n, chain=chain, disable_autoconnect=disable_autoconnect)
os.makedirs(os.path.join(datadir, 'stderr'), exist_ok=True)
os.makedirs(os.path.join(datadir, 'stdout'), exist_ok=True)
return datadir
def write_config(config_path, *, n, chain, extra_config="", disable_autoconnect=True):
# Translate chain subdirectory name to config name
if chain == 'testnet3':
chain_name_conf_arg = 'testnet'
chain_name_conf_section = 'test'
else:
chain_name_conf_arg = chain
chain_name_conf_section = chain
with open(config_path, 'w', encoding='utf8') as f:
if chain_name_conf_arg:
f.write("{}=1\n".format(chain_name_conf_arg))
if chain_name_conf_section:
f.write("[{}]\n".format(chain_name_conf_section))
f.write("port=" + str(p2p_port(n)) + "\n")
f.write("rpcport=" + str(rpc_port(n)) + "\n")
f.write("fallbackfee=0.0002\n")
f.write("server=1\n")
f.write("keypool=1\n")
f.write("discover=0\n")
f.write("dnsseed=0\n")
f.write("fixedseeds=0\n")
f.write("listenonion=0\n")
# Increase peertimeout to avoid disconnects while using mocktime.
# peertimeout is measured in mock time, so setting it large enough to
# cover any duration in mock time is sufficient. It can be overridden
# in tests.
f.write("peertimeout=999999999\n")
f.write("printtoconsole=0\n")
f.write("upnp=0\n")
f.write("natpmp=0\n")
f.write("shrinkdebugfile=0\n")
# To improve SQLite wallet performance so that the tests don't timeout, use -unsafesqlitesync
f.write("unsafesqlitesync=1\n")
if disable_autoconnect:
f.write("connect=0\n")
f.write(extra_config)
def get_datadir_path(dirname, n):
return os.path.join(dirname, "node" + str(n))
def append_config(datadir, options):
with open(os.path.join(datadir, "bitcoin.conf"), 'a', encoding='utf8') as f:
for option in options:
f.write(option + "\n")
def get_auth_cookie(datadir, chain):
user = None
password = None
if os.path.isfile(os.path.join(datadir, "bitcoin.conf")):
with open(os.path.join(datadir, "bitcoin.conf"), 'r', encoding='utf8') as f:
for line in f:
if line.startswith("rpcuser="):
assert user is None # Ensure that there is only one rpcuser line
user = line.split("=")[1].strip("\n")
if line.startswith("rpcpassword="):
assert password is None # Ensure that there is only one rpcpassword line
password = line.split("=")[1].strip("\n")
try:
with open(os.path.join(datadir, chain, ".cookie"), 'r', encoding="ascii") as f:
userpass = f.read()
split_userpass = userpass.split(':')
user = split_userpass[0]
password = split_userpass[1]
except OSError:
pass
if user is None or password is None:
raise ValueError("No RPC credentials")
return user, password
# If a cookie file exists in the given datadir, delete it.
def delete_cookie_file(datadir, chain):
if os.path.isfile(os.path.join(datadir, chain, ".cookie")):
logger.debug("Deleting leftover cookie file")
os.remove(os.path.join(datadir, chain, ".cookie"))
def softfork_active(node, key):
"""Return whether a softfork is active."""
return node.getdeploymentinfo()['deployments'][key]['active']
def set_node_times(nodes, t):
for node in nodes:
node.setmocktime(t)
def check_node_connections(*, node, num_in, num_out):
info = node.getnetworkinfo()
assert_equal(info["connections_in"], num_in)
assert_equal(info["connections_out"], num_out)
# Transaction/Block functions
#############################
def find_output(node, txid, amount, *, blockhash=None):
"""
Return index to output of txid with value amount
Raises exception if there is none.
"""
txdata = node.getrawtransaction(txid, 1, blockhash)
for i in range(len(txdata["vout"])):
if txdata["vout"][i]["value"] == amount:
return i
raise RuntimeError("find_output txid %s : %s not found" % (txid, str(amount)))
# Helper to create at least "count" utxos
# Pass in a fee that is sufficient for relay and mining new transactions.
def create_confirmed_utxos(test_framework, fee, node, count, **kwargs):
to_generate = int(0.5 * count) + 101
while to_generate > 0:
test_framework.generate(node, min(25, to_generate), **kwargs)
to_generate -= 25
utxos = node.listunspent()
iterations = count - len(utxos)
addr1 = node.getnewaddress()
addr2 = node.getnewaddress()
if iterations <= 0:
return utxos
for _ in range(iterations):
t = utxos.pop()
inputs = []
inputs.append({"txid": t["txid"], "vout": t["vout"]})
outputs = {}
send_value = t['amount'] - fee
outputs[addr1] = satoshi_round(send_value / 2)
outputs[addr2] = satoshi_round(send_value / 2)
raw_tx = node.createrawtransaction(inputs, outputs)
signed_tx = node.signrawtransactionwithwallet(raw_tx)["hex"]
node.sendrawtransaction(signed_tx)
while (node.getmempoolinfo()['size'] > 0):
test_framework.generate(node, 1, **kwargs)
utxos = node.listunspent()
assert len(utxos) >= count
return utxos
def chain_transaction(node, parent_txids, vouts, value, fee, num_outputs):
"""Build and send a transaction that spends the given inputs (specified
by lists of parent_txid:vout each), with the desired total value and fee,
equally divided up to the desired number of outputs.
Returns a tuple with the txid and the amount sent per output.
"""
send_value = satoshi_round((value - fee)/num_outputs)
inputs = []
for (txid, vout) in zip(parent_txids, vouts):
inputs.append({'txid' : txid, 'vout' : vout})
outputs = {}
for _ in range(num_outputs):
outputs[node.getnewaddress()] = send_value
rawtx = node.createrawtransaction(inputs, outputs, 0, True)
signedtx = node.signrawtransactionwithwallet(rawtx)
txid = node.sendrawtransaction(signedtx['hex'])
fulltx = node.getrawtransaction(txid, 1)
assert len(fulltx['vout']) == num_outputs # make sure we didn't generate a change output
return (txid, send_value)
# Create large OP_RETURN txouts that can be appended to a transaction
# to make it large (helper for constructing large transactions).
def gen_return_txouts():
# Some pre-processing to create a bunch of OP_RETURN txouts to insert into transactions we create
# So we have big transactions (and therefore can't fit very many into each block)
# create one script_pubkey
script_pubkey = "6a4d0200" # OP_RETURN OP_PUSH2 512 bytes
for _ in range(512):
script_pubkey = script_pubkey + "01"
# concatenate 128 txouts of above script_pubkey which we'll insert before the txout for change
txouts = []
from .messages import CTxOut
txout = CTxOut()
txout.nValue = 0
txout.scriptPubKey = bytes.fromhex(script_pubkey)
for _ in range(128):
txouts.append(txout)
return txouts
# Create a spend of each passed-in utxo, splicing in "txouts" to each raw
# transaction to make it large. See gen_return_txouts() above.
def create_lots_of_big_transactions(node, txouts, utxos, num, fee):
addr = node.getnewaddress()
txids = []
from .messages import tx_from_hex
for _ in range(num):
t = utxos.pop()
inputs = [{"txid": t["txid"], "vout": t["vout"]}]
outputs = {}
change = t['amount'] - fee
outputs[addr] = satoshi_round(change)
rawtx = node.createrawtransaction(inputs, outputs)
tx = tx_from_hex(rawtx)
for txout in txouts:
tx.vout.append(txout)
newtx = tx.serialize().hex()
signresult = node.signrawtransactionwithwallet(newtx, None, "NONE")
txid = node.sendrawtransaction(signresult["hex"], 0)
txids.append(txid)
return txids
def mine_large_block(test_framework, node, utxos=None):
# generate a 66k transaction,
# and 14 of them is close to the 1MB block limit
num = 14
txouts = gen_return_txouts()
utxos = utxos if utxos is not None else []
if len(utxos) < num:
utxos.clear()
utxos.extend(node.listunspent())
fee = 100 * node.getnetworkinfo()["relayfee"]
create_lots_of_big_transactions(node, txouts, utxos, num, fee=fee)
test_framework.generate(node, 1)
def find_vout_for_address(node, txid, addr):
"""
Locate the vout index of the given transaction sending to the
given address. Raises runtime error exception if not found.
"""
tx = node.getrawtransaction(txid, True)
for i in range(len(tx["vout"])):
if addr == tx["vout"][i]["scriptPubKey"]["address"]:
return i
raise RuntimeError("Vout not found for address: txid=%s, addr=%s" % (txid, addr))
def modinv(a, n):
"""Compute the modular inverse of a modulo n using the extended Euclidean
Algorithm. See https://en.wikipedia.org/wiki/Extended_Euclidean_algorithm#Modular_integers.
"""
# TODO: Change to pow(a, -1, n) available in Python 3.8
t1, t2 = 0, 1
r1, r2 = n, a
while r2 != 0:
q = r1 // r2
t1, t2 = t2, t1 - q * t2
r1, r2 = r2, r1 - q * r2
if r1 > 1:
return None
if t1 < 0:
t1 += n
return t1
class TestFrameworkUtil(unittest.TestCase):
def test_modinv(self):
test_vectors = [
[7, 11],
[11, 29],
[90, 13],
[1891, 3797],
[6003722857, 77695236973],
]
for a, n in test_vectors:
self.assertEqual(modinv(a, n), pow(a, n-2, n))

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miner_imports/test_framework/wallet.py Normal file
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#!/usr/bin/env python3
# Copyright (c) 2020-2021 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""A limited-functionality wallet, which may replace a real wallet in tests"""
from copy import deepcopy
from decimal import Decimal
from enum import Enum
from random import choice
from typing import Optional
from test_framework.address import (
base58_to_byte,
create_deterministic_address_bcrt1_p2tr_op_true,
key_to_p2pkh,
key_to_p2sh_p2wpkh,
key_to_p2wpkh,
)
from test_framework.descriptors import descsum_create
from test_framework.key import ECKey
from test_framework.messages import (
COIN,
COutPoint,
CTransaction,
CTxIn,
CTxInWitness,
CTxOut,
tx_from_hex,
)
from test_framework.script import (
CScript,
LegacySignatureHash,
LEAF_VERSION_TAPSCRIPT,
OP_NOP,
OP_TRUE,
SIGHASH_ALL,
)
from test_framework.script_util import (
key_to_p2pk_script,
key_to_p2pkh_script,
key_to_p2sh_p2wpkh_script,
key_to_p2wpkh_script,
keyhash_to_p2pkh_script,
scripthash_to_p2sh_script,
)
from test_framework.util import (
assert_equal,
assert_greater_than_or_equal,
)
DEFAULT_FEE = Decimal("0.0001")
class MiniWalletMode(Enum):
"""Determines the transaction type the MiniWallet is creating and spending.
For most purposes, the default mode ADDRESS_OP_TRUE should be sufficient;
it simply uses a fixed bech32m P2TR address whose coins are spent with a
witness stack of OP_TRUE, i.e. following an anyone-can-spend policy.
However, if the transactions need to be modified by the user (e.g. prepending
scriptSig for testing opcodes that are activated by a soft-fork), or the txs
should contain an actual signature, the raw modes RAW_OP_TRUE and RAW_P2PK
can be useful. Summary of modes:
| output | | tx is | can modify | needs
mode | description | address | standard | scriptSig | signing
----------------+-------------------+-----------+----------+------------+----------
ADDRESS_OP_TRUE | anyone-can-spend | bech32m | yes | no | no
RAW_OP_TRUE | anyone-can-spend | - (raw) | no | yes | no
RAW_P2PK | pay-to-public-key | - (raw) | yes | yes | yes
"""
ADDRESS_OP_TRUE = 1
RAW_OP_TRUE = 2
RAW_P2PK = 3
class MiniWallet:
def __init__(self, test_node, *, mode=MiniWalletMode.ADDRESS_OP_TRUE):
self._test_node = test_node
self._utxos = []
self._priv_key = None
self._address = None
assert isinstance(mode, MiniWalletMode)
if mode == MiniWalletMode.RAW_OP_TRUE:
self._scriptPubKey = bytes(CScript([OP_TRUE]))
elif mode == MiniWalletMode.RAW_P2PK:
# use simple deterministic private key (k=1)
self._priv_key = ECKey()
self._priv_key.set((1).to_bytes(32, 'big'), True)
pub_key = self._priv_key.get_pubkey()
self._scriptPubKey = key_to_p2pk_script(pub_key.get_bytes())
elif mode == MiniWalletMode.ADDRESS_OP_TRUE:
self._address, self._internal_key = create_deterministic_address_bcrt1_p2tr_op_true()
self._scriptPubKey = bytes.fromhex(self._test_node.validateaddress(self._address)['scriptPubKey'])
def rescan_utxos(self):
"""Drop all utxos and rescan the utxo set"""
self._utxos = []
res = self._test_node.scantxoutset(action="start", scanobjects=[self.get_descriptor()])
assert_equal(True, res['success'])
for utxo in res['unspents']:
self._utxos.append({'txid': utxo['txid'], 'vout': utxo['vout'], 'value': utxo['amount'], 'height': utxo['height']})
def scan_tx(self, tx):
"""Scan the tx for self._scriptPubKey outputs and add them to self._utxos"""
for out in tx['vout']:
if out['scriptPubKey']['hex'] == self._scriptPubKey.hex():
self._utxos.append({'txid': tx['txid'], 'vout': out['n'], 'value': out['value'], 'height': 0})
def sign_tx(self, tx, fixed_length=True):
"""Sign tx that has been created by MiniWallet in P2PK mode"""
assert self._priv_key is not None
(sighash, err) = LegacySignatureHash(CScript(self._scriptPubKey), tx, 0, SIGHASH_ALL)
assert err is None
# for exact fee calculation, create only signatures with fixed size by default (>49.89% probability):
# 65 bytes: high-R val (33 bytes) + low-S val (32 bytes)
# with the DER header/skeleton data of 6 bytes added, this leads to a target size of 71 bytes
der_sig = b''
while not len(der_sig) == 71:
der_sig = self._priv_key.sign_ecdsa(sighash)
if not fixed_length:
break
tx.vin[0].scriptSig = CScript([der_sig + bytes(bytearray([SIGHASH_ALL]))])
def generate(self, num_blocks, **kwargs):
"""Generate blocks with coinbase outputs to the internal address, and append the outputs to the internal list"""
blocks = self._test_node.generatetodescriptor(num_blocks, self.get_descriptor(), **kwargs)
for b in blocks:
block_info = self._test_node.getblock(blockhash=b, verbosity=2)
cb_tx = block_info['tx'][0]
self._utxos.append({'txid': cb_tx['txid'], 'vout': 0, 'value': cb_tx['vout'][0]['value'], 'height': block_info['height']})
return blocks
def get_descriptor(self):
return descsum_create(f'raw({self._scriptPubKey.hex()})')
def get_address(self):
return self._address
def get_utxo(self, *, txid: Optional[str]='', mark_as_spent=True):
"""
Returns a utxo and marks it as spent (pops it from the internal list)
Args:
txid: get the first utxo we find from a specific transaction
"""
index = -1 # by default the last utxo
self._utxos = sorted(self._utxos, key=lambda k: (k['value'], -k['height'])) # Put the largest utxo last
if txid:
utxo = next(filter(lambda utxo: txid == utxo['txid'], self._utxos))
index = self._utxos.index(utxo)
if mark_as_spent:
return self._utxos.pop(index)
else:
return self._utxos[index]
def send_self_transfer(self, **kwargs):
"""Create and send a tx with the specified fee_rate. Fee may be exact or at most one satoshi higher than needed."""
tx = self.create_self_transfer(**kwargs)
self.sendrawtransaction(from_node=kwargs['from_node'], tx_hex=tx['hex'])
return tx
def send_to(self, *, from_node, scriptPubKey, amount, fee=1000):
"""
Create and send a tx with an output to a given scriptPubKey/amount,
plus a change output to our internal address. To keep things simple, a
fixed fee given in Satoshi is used.
Note that this method fails if there is no single internal utxo
available that can cover the cost for the amount and the fixed fee
(the utxo with the largest value is taken).
Returns a tuple (txid, n) referring to the created external utxo outpoint.
"""
tx = self.create_self_transfer(from_node=from_node, fee_rate=0, mempool_valid=False)['tx']
assert_greater_than_or_equal(tx.vout[0].nValue, amount + fee)
tx.vout[0].nValue -= (amount + fee) # change output -> MiniWallet
tx.vout.append(CTxOut(amount, scriptPubKey)) # arbitrary output -> to be returned
txid = self.sendrawtransaction(from_node=from_node, tx_hex=tx.serialize().hex())
return txid, 1
def create_self_transfer(self, *, fee_rate=Decimal("0.003"), from_node=None, utxo_to_spend=None, mempool_valid=True, locktime=0, sequence=0):
"""Create and return a tx with the specified fee_rate. Fee may be exact or at most one satoshi higher than needed."""
from_node = from_node or self._test_node
utxo_to_spend = utxo_to_spend or self.get_utxo()
if self._priv_key is None:
vsize = Decimal(104) # anyone-can-spend
else:
vsize = Decimal(168) # P2PK (73 bytes scriptSig + 35 bytes scriptPubKey + 60 bytes other)
send_value = int(COIN * (utxo_to_spend['value'] - fee_rate * (vsize / 1000)))
assert send_value > 0
tx = CTransaction()
tx.vin = [CTxIn(COutPoint(int(utxo_to_spend['txid'], 16), utxo_to_spend['vout']), nSequence=sequence)]
tx.vout = [CTxOut(send_value, self._scriptPubKey)]
tx.nLockTime = locktime
if not self._address:
# raw script
if self._priv_key is not None:
# P2PK, need to sign
self.sign_tx(tx)
else:
# anyone-can-spend
tx.vin[0].scriptSig = CScript([OP_NOP] * 43) # pad to identical size
else:
tx.wit.vtxinwit = [CTxInWitness()]
tx.wit.vtxinwit[0].scriptWitness.stack = [CScript([OP_TRUE]), bytes([LEAF_VERSION_TAPSCRIPT]) + self._internal_key]
tx_hex = tx.serialize().hex()
tx_info = from_node.testmempoolaccept([tx_hex])[0]
assert_equal(mempool_valid, tx_info['allowed'])
if mempool_valid:
assert_equal(tx_info['vsize'], vsize)
assert_equal(tx_info['fees']['base'], utxo_to_spend['value'] - Decimal(send_value) / COIN)
return {'txid': tx_info['txid'], 'wtxid': tx_info['wtxid'], 'hex': tx_hex, 'tx': tx}
def sendrawtransaction(self, *, from_node, tx_hex, **kwargs):
txid = from_node.sendrawtransaction(hexstring=tx_hex, **kwargs)
self.scan_tx(from_node.decoderawtransaction(tx_hex))
return txid
def getnewdestination(address_type='bech32'):
"""Generate a random destination of the specified type and return the
corresponding public key, scriptPubKey and address. Supported types are
'legacy', 'p2sh-segwit' and 'bech32'. Can be used when a random
destination is needed, but no compiled wallet is available (e.g. as
replacement to the getnewaddress/getaddressinfo RPCs)."""
key = ECKey()
key.generate()
pubkey = key.get_pubkey().get_bytes()
if address_type == 'legacy':
scriptpubkey = key_to_p2pkh_script(pubkey)
address = key_to_p2pkh(pubkey)
elif address_type == 'p2sh-segwit':
scriptpubkey = key_to_p2sh_p2wpkh_script(pubkey)
address = key_to_p2sh_p2wpkh(pubkey)
elif address_type == 'bech32':
scriptpubkey = key_to_p2wpkh_script(pubkey)
address = key_to_p2wpkh(pubkey)
# TODO: also support bech32m (need to generate x-only-pubkey)
else:
assert False
return pubkey, scriptpubkey, address
def address_to_scriptpubkey(address):
"""Converts a given address to the corresponding output script (scriptPubKey)."""
payload, version = base58_to_byte(address)
if version == 111: # testnet pubkey hash
return keyhash_to_p2pkh_script(payload)
elif version == 196: # testnet script hash
return scripthash_to_p2sh_script(payload)
# TODO: also support other address formats
else:
assert False
def make_chain(node, address, privkeys, parent_txid, parent_value, n=0, parent_locking_script=None, fee=DEFAULT_FEE):
"""Build a transaction that spends parent_txid.vout[n] and produces one output with
amount = parent_value with a fee deducted.
Return tuple (CTransaction object, raw hex, nValue, scriptPubKey of the output created).
"""
inputs = [{"txid": parent_txid, "vout": n}]
my_value = parent_value - fee
outputs = {address : my_value}
rawtx = node.createrawtransaction(inputs, outputs)
prevtxs = [{
"txid": parent_txid,
"vout": n,
"scriptPubKey": parent_locking_script,
"amount": parent_value,
}] if parent_locking_script else None
signedtx = node.signrawtransactionwithkey(hexstring=rawtx, privkeys=privkeys, prevtxs=prevtxs)
assert signedtx["complete"]
tx = tx_from_hex(signedtx["hex"])
return (tx, signedtx["hex"], my_value, tx.vout[0].scriptPubKey.hex())
def create_child_with_parents(node, address, privkeys, parents_tx, values, locking_scripts, fee=DEFAULT_FEE):
"""Creates a transaction that spends the first output of each parent in parents_tx."""
num_parents = len(parents_tx)
total_value = sum(values)
inputs = [{"txid": tx.rehash(), "vout": 0} for tx in parents_tx]
outputs = {address : total_value - fee}
rawtx_child = node.createrawtransaction(inputs, outputs)
prevtxs = []
for i in range(num_parents):
prevtxs.append({"txid": parents_tx[i].rehash(), "vout": 0, "scriptPubKey": locking_scripts[i], "amount": values[i]})
signedtx_child = node.signrawtransactionwithkey(hexstring=rawtx_child, privkeys=privkeys, prevtxs=prevtxs)
assert signedtx_child["complete"]
return signedtx_child["hex"]
def create_raw_chain(node, first_coin, address, privkeys, chain_length=25):
"""Helper function: create a "chain" of chain_length transactions. The nth transaction in the
chain is a child of the n-1th transaction and parent of the n+1th transaction.
"""
parent_locking_script = None
txid = first_coin["txid"]
chain_hex = []
chain_txns = []
value = first_coin["amount"]
for _ in range(chain_length):
(tx, txhex, value, parent_locking_script) = make_chain(node, address, privkeys, txid, value, 0, parent_locking_script)
txid = tx.rehash()
chain_hex.append(txhex)
chain_txns.append(tx)
return (chain_hex, chain_txns)
def bulk_transaction(tx, node, target_weight, privkeys, prevtxs=None):
"""Pad a transaction with extra outputs until it reaches a target weight (or higher).
returns CTransaction object
"""
tx_heavy = deepcopy(tx)
assert_greater_than_or_equal(target_weight, tx_heavy.get_weight())
while tx_heavy.get_weight() < target_weight:
random_spk = "6a4d0200" # OP_RETURN OP_PUSH2 512 bytes
for _ in range(512*2):
random_spk += choice("0123456789ABCDEF")
tx_heavy.vout.append(CTxOut(0, bytes.fromhex(random_spk)))
# Re-sign the transaction
if privkeys:
signed = node.signrawtransactionwithkey(tx_heavy.serialize().hex(), privkeys, prevtxs)
return tx_from_hex(signed["hex"])
# OP_TRUE
tx_heavy.wit.vtxinwit = [CTxInWitness()]
tx_heavy.wit.vtxinwit[0].scriptWitness.stack = [CScript([OP_TRUE])]
return tx_heavy

121
miner_imports/test_framework/wallet_util.py Executable file
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#!/usr/bin/env python3
# Copyright (c) 2018-2021 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Useful util functions for testing the wallet"""
from collections import namedtuple
from test_framework.address import (
byte_to_base58,
key_to_p2pkh,
key_to_p2sh_p2wpkh,
key_to_p2wpkh,
script_to_p2sh,
script_to_p2sh_p2wsh,
script_to_p2wsh,
)
from test_framework.key import ECKey
from test_framework.script_util import (
key_to_p2pkh_script,
key_to_p2wpkh_script,
keys_to_multisig_script,
script_to_p2sh_script,
script_to_p2wsh_script,
)
Key = namedtuple('Key', ['privkey',
'pubkey',
'p2pkh_script',
'p2pkh_addr',
'p2wpkh_script',
'p2wpkh_addr',
'p2sh_p2wpkh_script',
'p2sh_p2wpkh_redeem_script',
'p2sh_p2wpkh_addr'])
Multisig = namedtuple('Multisig', ['privkeys',
'pubkeys',
'p2sh_script',
'p2sh_addr',
'redeem_script',
'p2wsh_script',
'p2wsh_addr',
'p2sh_p2wsh_script',
'p2sh_p2wsh_addr'])
def get_key(node):
"""Generate a fresh key on node
Returns a named tuple of privkey, pubkey and all address and scripts."""
addr = node.getnewaddress()
pubkey = node.getaddressinfo(addr)['pubkey']
return Key(privkey=node.dumpprivkey(addr),
pubkey=pubkey,
p2pkh_script=key_to_p2pkh_script(pubkey).hex(),
p2pkh_addr=key_to_p2pkh(pubkey),
p2wpkh_script=key_to_p2wpkh_script(pubkey).hex(),
p2wpkh_addr=key_to_p2wpkh(pubkey),
p2sh_p2wpkh_script=script_to_p2sh_script(key_to_p2wpkh_script(pubkey)).hex(),
p2sh_p2wpkh_redeem_script=key_to_p2wpkh_script(pubkey).hex(),
p2sh_p2wpkh_addr=key_to_p2sh_p2wpkh(pubkey))
def get_generate_key():
"""Generate a fresh key
Returns a named tuple of privkey, pubkey and all address and scripts."""
eckey = ECKey()
eckey.generate()
privkey = bytes_to_wif(eckey.get_bytes())
pubkey = eckey.get_pubkey().get_bytes().hex()
return Key(privkey=privkey,
pubkey=pubkey,
p2pkh_script=key_to_p2pkh_script(pubkey).hex(),
p2pkh_addr=key_to_p2pkh(pubkey),
p2wpkh_script=key_to_p2wpkh_script(pubkey).hex(),
p2wpkh_addr=key_to_p2wpkh(pubkey),
p2sh_p2wpkh_script=script_to_p2sh_script(key_to_p2wpkh_script(pubkey)).hex(),
p2sh_p2wpkh_redeem_script=key_to_p2wpkh_script(pubkey).hex(),
p2sh_p2wpkh_addr=key_to_p2sh_p2wpkh(pubkey))
def get_multisig(node):
"""Generate a fresh 2-of-3 multisig on node
Returns a named tuple of privkeys, pubkeys and all address and scripts."""
addrs = []
pubkeys = []
for _ in range(3):
addr = node.getaddressinfo(node.getnewaddress())
addrs.append(addr['address'])
pubkeys.append(addr['pubkey'])
script_code = keys_to_multisig_script(pubkeys, k=2)
witness_script = script_to_p2wsh_script(script_code)
return Multisig(privkeys=[node.dumpprivkey(addr) for addr in addrs],
pubkeys=pubkeys,
p2sh_script=script_to_p2sh_script(script_code).hex(),
p2sh_addr=script_to_p2sh(script_code),
redeem_script=script_code.hex(),
p2wsh_script=witness_script.hex(),
p2wsh_addr=script_to_p2wsh(script_code),
p2sh_p2wsh_script=script_to_p2sh_script(witness_script).hex(),
p2sh_p2wsh_addr=script_to_p2sh_p2wsh(script_code))
def test_address(node, address, **kwargs):
"""Get address info for `address` and test whether the returned values are as expected."""
addr_info = node.getaddressinfo(address)
for key, value in kwargs.items():
if value is None:
if key in addr_info.keys():
raise AssertionError("key {} unexpectedly returned in getaddressinfo.".format(key))
elif addr_info[key] != value:
raise AssertionError("key {} value {} did not match expected value {}".format(key, addr_info[key], value))
def bytes_to_wif(b, compressed=True):
if compressed:
b += b'\x01'
return byte_to_base58(b, 239)
def generate_wif_key():
# Makes a WIF privkey for imports
k = ECKey()
k.generate()
return bytes_to_wif(k.get_bytes(), k.is_compressed)

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rpcauth.py Executable file
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#!/usr/bin/env python3
# Copyright (c) 2015-2021 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
from argparse import ArgumentParser
from base64 import urlsafe_b64encode
from getpass import getpass
from os import urandom
import hmac
def generate_salt(size):
"""Create size byte hex salt"""
return urandom(size).hex()
def generate_password():
"""Create 32 byte b64 password"""
return urlsafe_b64encode(urandom(32)).decode('utf-8')
def password_to_hmac(salt, password):
m = hmac.new(bytearray(salt, 'utf-8'), bytearray(password, 'utf-8'), 'SHA256')
return m.hexdigest()
def main():
parser = ArgumentParser(description='Create login credentials for a JSON-RPC user')
parser.add_argument('username', help='the username for authentication')
parser.add_argument('password', help='leave empty to generate a random password or specify "-" to prompt for password', nargs='?')
args = parser.parse_args()
if not args.password:
args.password = generate_password()
elif args.password == '-':
args.password = getpass()
# Create 16 byte hex salt
salt = generate_salt(16)
password_hmac = password_to_hmac(salt, args.password)
print('{0}:{1}${2}'.format(args.username, salt, password_hmac))
if __name__ == '__main__':
main()

14
run.sh Executable file
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#!/bin/bash
# run bitcoind
bitcoind --daemonwait
sleep 5
echo "get magic"
magic=$(cat /root/.bitcoin/signet/debug.log | grep -m1 magic)
magic=${magic:(-8)}
echo $magic > /root/.bitcoin/MAGIC.txt
# if in mining mode
if [[ "$MINERENABLED" == "1" ]]; then
mine.sh
fi

14
setup-signet.sh Executable file
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PRIVKEY=${PRIVKEY:-$(cat ~/.bitcoin/PRIVKEY.txt)}
DATADIR=${DATADIR:-~/.bitcoin/}
bitcoind -datadir=$DATADIR --daemonwait -persistmempool
bitcoin-cli -datadir=$DATADIR -named createwallet wallet_name="custom_signet" load_on_startup=true descriptors=false
#only used in case of mining node
if [[ "$MINERENABLED" == "1" ]]; then
bitcoin-cli -datadir=$DATADIR importprivkey $PRIVKEY
## for future with descriptor wallets, cannot seem to get it working yet
# descinfo=$(bitcoin-cli getdescriptorinfo "wpkh(${PRIVKEY})")
# checksum=$(echo "$descinfo" | jq .checksum | tr -d '"' | tr -d "\n")
# desc='[{"desc":"wpkh('$PRIVKEY')#'$checksum'","timestamp":0,"internal":false}]'
# bitcoin-cli -datadir=$DATADIR importdescriptors $desc
fi