def test_serialize_inv_message(self):
inv_message = InvMessage([Invitem(INV_TX, Uint256.from_hexstr("f6eea3dd4f6536350344a535e37a4178170bba18b871a424d696e196d4d3b555")),
Invitem(INV_BLOCK, Uint256.from_hexstr("0000000040a24e14497879bdd67db948cf30edc5d0a5833e8cb2736582157b49"))])
serialized_msg = MessageSerializer(MAIN).serialize(inv_message)
self.assertEquals(hexstr(serialized_msg), "f9beb4d9696e76000000000000000000490000008be920f5020100000055b5d3d496e196d624a471b818ba0b1778417ae335a544033536654fdda3eef602000000497b15826573b28c3e83a5d0c5ed30cf48b97dd6bd797849144ea24000000000")
serialized_msg = MessageSerializer(TESTNET).serialize(inv_message)
self.assertEquals(hexstr(serialized_msg), "fabfb5da696e76000000000000000000490000008be920f5020100000055b5d3d496e196d624a471b818ba0b1778417ae335a544033536654fdda3eef602000000497b15826573b28c3e83a5d0c5ed30cf48b97dd6bd797849144ea24000000000")
def test_serialize_getblocks_message(self):
getblocks_msg = GetblocksMessage(BlockLocator(32200,
[Uint256.from_hexstr("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f")]),
Uint256.zero())
serialized_msg = GetblocksMessageSerializer().serialize(getblocks_msg)
self.assertEquals(hexstr(serialized_msg), "c87d0000016fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d61900000000000000000000000000000000000000000000000000000000000000000000000000")
def test_WalletFile_1(self):
io = IoHandle.using_stringio()
wallet = WalletFile.new(io)
wallet.start_tx()
wallet.outpoints[1]= OutpointIndex(12,
Uint256.from_hexstr("2af4cc9ec3358354345c91694031a1fcdbe9a9064197521814e8a20fe018eb5f"),
3,
OutpointIndex.PUBKEY_HASH,
4,
PubKeyOutpoint(PublicKey.from_hexstr("022af4cc9ec3358354345c91691031a1fcdbe9a9064197521814e8a20fe018eb5f"),
is_pubkey_hash=True))
wallet.end_tx()
wallet.commit()
wallet.start_tx()
wallet.outpoints[1] = OutpointIndex(12,
Uint256.from_hexstr("2af4cc9ec3358354345c91694031a1fcdbe9a9064197521814e8a20fe018eb5f"),
3,
OutpointIndex.PUBKEY_HASH,
4,
PubKeyOutpoint(PublicKey.from_hexstr("022af4cc9ec3358354345c91691031a1fcdbe9a9064197521814e8a20fe018eb5f"),
is_pubkey_hash=True))
wallet.end_tx()
wallet.commit()
#with open(r"c:\local\tmp\wallet-test.wlt", "wb") as wlt:
# wlt.write(io.iohandle.getvalue())
io.seek(0, SEEK_SET)
wallet2 = WalletFile.load(io, len(io.iohandle.getvalue()))
print wallet2.fileheader
print wallet2.outpoints
def test_invitem_serialize(self):
blockitem = Invitem(INV_BLOCK, Uint256.from_hexstr("00000007199508e34a9ff81e6ec0c477a4cccff2a4767a8eee39c11db367b008"))
txitem = Invitem(INV_TX, Uint256.from_hexstr("84eb3cf3a391a0a0b70e05a3a54d8385f7dcb3809aaf274d392622205b27f288"))
self.assertEquals(hexstr(InvitemSerializer().serialize(blockitem)),
"0200000008b067b31dc139ee8e7a76a4f2cfcca477c4c06e1ef89f4ae308951907000000")
self.assertEquals(hexstr(InvitemSerializer().serialize(txitem)),
"0100000088f2275b202226394d27af9a80b3dcf785834da5a3050eb7a0a091a3f33ceb84")
def test_transaction_handle(self):
with self.assertRaises(TransactionNotFound):
self.database1.get_transaction_handle(
Uint256.from_hexstr(
"07c17eafb870acf0fece060b814ff71fd36a7df0f0a3a7e359c2c61b3b34c3e1"
))
handle1 = self.database1.get_transaction_handle(
Uint256.from_hexstr(
"cebbc8d7d3550ca6df92eba4f41b93dc55f35b8199bb14dc3d0a95f9bd0e2dbd"
))
assert isinstance(handle1.get_transaction(), Tx)
self.assertEquals(
str(handle1.get_block_hash()),
"001f9c93fece90e2e1f729bb9c2b04ba59432592f8ebdc7d117146c74f7c833a")
self.assertEquals(handle1.output_count(), 7)
self.assertEquals(handle1.is_output_spent(0), False)
self.assertEquals(handle1.is_output_spent(2), True)
self.assertEquals(
str(handle1.get_spending_transaction_hash(2)),
"53bb1c14b4c6156d7352ee471fb7697736f4696accf5392e0f1830e38143f667")
handle1.mark_unspent(2)
self.assertEquals(handle1.is_output_spent(2), False)
handle1.mark_spent(
0,
Uint256.from_hexstr(
"13bb1c14b4c6156d7352ee471fb7697736f4696accf5392e0f1830e38143f667"
))
self.assertEquals(handle1.is_output_spent(2), False)
self.assertEquals(handle1.is_output_spent(0), True)
self.assertEquals(
str(handle1.get_spending_transaction_hash(0)),
"13bb1c14b4c6156d7352ee471fb7697736f4696accf5392e0f1830e38143f667")
def test_sign_transaction(self):
tx = Tx(version=1,
in_list=[TxIn(previous_output=Outpoint(hash=Uint256.from_hexstr("d2a42ebcb98b598ddcb6d430ce9061dba76804a97f7c1413dd3faef744f909a8"),index=0),
script=Script(instructions=[]),
sequence=4294967295),TxIn(previous_output=Outpoint(hash=Uint256.from_hexstr("2be8e319be1d15c1ba54708bdd7969b638e7e6fa2154819136e363ea6d33664a"),index=1),
script=Script(instructions=[]),
sequence=4294967295)],
out_list=[TxOut(value=3315075843,
script=Script(instructions=[Instruction(OP_DUP),Instruction(OP_HASH160),Instruction(20, decodehexstr("297c5a2ee31a1ab721115722d83f8654ca21d5df")),Instruction(OP_EQUALVERIFY),Instruction(OP_CHECKSIG)])),TxOut(value=2971972133,
script=Script(instructions=[Instruction(OP_DUP),Instruction(OP_HASH160),Instruction(20, decodehexstr("7d5feab86e31e8fc99d8e735d56226de9043e5fc")),Instruction(OP_EQUALVERIFY),Instruction(OP_CHECKSIG)])),TxOut(value=1046301823,
script=Script(instructions=[Instruction(OP_DUP),Instruction(OP_HASH160),Instruction(20, decodehexstr("fd91232a2fa0c389fa0188efde26c8a6165f4c50")),Instruction(OP_EQUALVERIFY),Instruction(OP_CHECKSIG)]))],
locktime=0)
outscript0 = Script(instructions=[Instruction(33, decodehexstr("03409fe679bdff9e801692c999b86d0c47b62dc02cdd10591ee70ca8056cd05023")),Instruction(OP_CHECKSIG)])
outscript1 = Script(instructions=[Instruction(OP_DUP),Instruction(OP_HASH160),Instruction(20, decodehexstr("5fb7fdb3d1ab0f3fec90b38417cca8ab736b10c6")),Instruction(OP_EQUALVERIFY),Instruction(OP_CHECKSIG)])
# Sign TX_PUBKEY
sign_transaction(tx,
[TxOut(None, outscript0), TxOut(None, outscript1)],
[decodehexstr("f006b27418527b1c400bbc434a3f22ee57c376bd4819cfe2a1162682788ae714"),
decodehexstr("c693115901c2840badd1e404706a4866a90d3afa16a542c1a3d0de9aad0875fe")])
vm = TxValidationVM()
valid, reason = vm.validate(tx, 0, outscript0, tx.in_list[0].script)
if not valid:
raise Exception(reason)
valid, reason = vm.validate(tx, 1, outscript1, tx.in_list[1].script)
if not valid:
raise Exception(reason)
def test_deserialize_getdata_message(self):
serialized_getdata = decodehexstr("030100000098a23359c17ca2678e2039c8ff9081b18c4913749c9a081ac3f62958f09fa4720100000055b5d3d496e196d624a471b818ba0b1778417ae335a544033536654fdda3eef602000000497b15826573b28c3e83a5d0c5ed30cf48b97dd6bd797849144ea24000000000")
getdata_msg, _ = GetdataMessageSerializer().deserialize(serialized_getdata)
expected_msg = GetdataMessage([Invitem(INV_TX, Uint256.from_hexstr("72a49ff05829f6c31a089a9c7413498cb18190ffc839208e67a27cc15933a298")),
Invitem(INV_TX, Uint256.from_hexstr("f6eea3dd4f6536350344a535e37a4178170bba18b871a424d696e196d4d3b555")),
Invitem(INV_BLOCK, Uint256.from_hexstr("0000000040a24e14497879bdd67db948cf30edc5d0a5833e8cb2736582157b49"))])
self.assertEquals(getdata_msg, expected_msg)
def test_blocklocator_deserialize(self):
loc, cursor = BlockLocatorSerializer().deserialize(
decodehexstr(
"0100000005a329e1166037b2ea0cfbef5060c011c1cbbd37ad047a47b62d3dae020000000070bdb41302a622800ddfb2b3ebdd937fdca812ec8a7ab90ef250410700000000398052b24b2cc45ef953222e23880d25c3df95a913e72e9b015b34250000000066739a04b15f117929b581f6fe0ba2906bc4323829400f949086bb7d0000000008b067b31dc139ee8e7a76a4f2cfcca477c4c06e1ef89f4ae308951907000000"
))
self.assertEquals(
loc,
BlockLocator(
version=1,
blockhashlist=[
Uint256.from_hexstr(
"0000000002ae3d2db6477a04ad37bdcbc111c06050effb0ceab2376016e129a3"
),
Uint256.from_hexstr(
"00000000074150f20eb97a8aec12a8dc7f93ddebb3b2df0d8022a60213b4bd70"
),
Uint256.from_hexstr(
"0000000025345b019b2ee713a995dfc3250d88232e2253f95ec42c4bb2528039"
),
Uint256.from_hexstr(
"000000007dbb8690940f40293832c46b90a20bfef681b52979115fb1049a7366"
),
Uint256.from_hexstr(
"00000007199508e34a9ff81e6ec0c477a4cccff2a4767a8eee39c11db367b008"
)
]))
def test_blocklocator_deserialize(self):
loc, cursor = BlockLocatorSerializer().deserialize(decodehexstr("0100000005a329e1166037b2ea0cfbef5060c011c1cbbd37ad047a47b62d3dae020000000070bdb41302a622800ddfb2b3ebdd937fdca812ec8a7ab90ef250410700000000398052b24b2cc45ef953222e23880d25c3df95a913e72e9b015b34250000000066739a04b15f117929b581f6fe0ba2906bc4323829400f949086bb7d0000000008b067b31dc139ee8e7a76a4f2cfcca477c4c06e1ef89f4ae308951907000000"))
self.assertEquals(loc, BlockLocator(version=1,
blockhashlist=[Uint256.from_hexstr("0000000002ae3d2db6477a04ad37bdcbc111c06050effb0ceab2376016e129a3"),
Uint256.from_hexstr("00000000074150f20eb97a8aec12a8dc7f93ddebb3b2df0d8022a60213b4bd70"),
Uint256.from_hexstr("0000000025345b019b2ee713a995dfc3250d88232e2253f95ec42c4bb2528039"),
Uint256.from_hexstr("000000007dbb8690940f40293832c46b90a20bfef681b52979115fb1049a7366"),
Uint256.from_hexstr("00000007199508e34a9ff81e6ec0c477a4cccff2a4767a8eee39c11db367b008")]))
def test_blockheader_serialize(self):
h = BlockHeader(version=1,
hash_prev=Uint256.from_hexstr("1e4baab89f3a3251818c31bc87f6a33b4a5a88ef76673e2cc77ab2127b7afded"), #hash_prev
hash_merkle=Uint256.from_hexstr("4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"), #merkle
time=1237006505,
bits=486605799,
nonce=2083236893)
self.assertEquals(hexstr(BlockheaderSerializer().serialize(h)), "01000000edfd7a7b12b27ac72c3e6776ef885a4a3ba3f687bc318c8151323a9fb8aa4b1e3ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4aa938bb49e703011d1dac2b7c")
def test_get_block_handle(self):
with self.assertRaises(BlockNotFound):
self.database1.get_block_handle(Uint256.from_hexstr("041f9c93fece90e2e1f729bb9c2b04ba59432592f8ebdc7d117146c74f7c833a"))
handle1 = self.database1.get_block_handle(Uint256.from_hexstr("001f9c93fece90e2e1f729bb9c2b04ba59432592f8ebdc7d117146c74f7c833a"))
self.assertEquals(handle1.get_height(), 4)
self.assertEquals(handle1.get_hash(), Uint256.from_hexstr("001f9c93fece90e2e1f729bb9c2b04ba59432592f8ebdc7d117146c74f7c833a"))
assert isinstance(handle1.get_block(), Block)
assert isinstance(handle1.get_blockheader(), BlockHeader)
def test_contains_transaction(self):
self.assertTrue(
self.database1.contains_transaction(
Uint256.from_hexstr(
"a87f530f2174f6c12945831e731a6fc99f699f1539cf14f36357b66d267b75a8"
)))
self.assertFalse(
self.database1.contains_transaction(
Uint256.from_hexstr(
"07c17eafb870acf0fece060b814ff71fd36a7df0f0a3a7e359c2c61b3b34c3e1"
)))
def test_next_in_mainchain(self):
self.assertEquals(
self.database1.get_next_in_mainchain(
Uint256.from_hexstr(
"003ee3cf880906caa5662f10d4b4fb1c86c1853230dee8a7b8a62f434c73da5f"
)),
Uint256.from_hexstr(
"000cdbffc59b95168c34e5f1853075376308c05c53a1a53425d7f1ca9cab7073"
))
self.assertIs(
self.database1.get_next_in_mainchain(
Uint256.from_hexstr(
"002afdfc8ed8111fa00c98bb7b94c34e02a52c57ba971a5fd29935d68fa1060b"
)), None)
def test_mine_genesis_block(self):
""" Mine the unitnet GENESIS block """
time_source = MockTimeSource(time=1356446436)
miner = BitcoinMiner()
block, template = miner.mine_block(hash_prev=Uint256.from_hexstr("0000000000000000000000000000000000000000000000000000000000000000"),
block_height=0,
time_source=time_source,
difficulty_bits=524287999,
transactions=[],
coinbase_txout_list=[TxOut(5000000000, Script([push_data_instruction(decodehexstr("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f")),Instruction(OP_CHECKSIG)]))],
coinbase_flags=["/P2SH/", "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks"])
self.assertEquals(block.blockheader.nonce, 1260)
self.assertEquals(block.blockheader.hash_merkle, Uint256.from_hexstr("cf7ac9a3b387cf5e9fc14e03e2a5bbfc16d1ba00d2af6c96869ab4da949bd240"))
self.assertEquals(hash_block(block), Uint256.from_hexstr("003ee3cf880906caa5662f10d4b4fb1c86c1853230dee8a7b8a62f434c73da5f"))
def mine_block(hash_prev,
block_height,
time_source,
difficulty_bits,
transactions,
coinbase_txout_list,
coinbase_flags=["/P2SH/"],
nonce_changer=default_nonce_changer):
template = BlockheaderTemplate(hash_prev,
block_height,
coinbase_txout_list,
transactions,
time_source.get_time(),
difficulty_bits,
coinbase_flags=coinbase_flags)
difficulty_target = uint256_difficulty(difficulty_bits)
hash_found = False
while not hash_found:
hash = Uint256.from_bytestr(doublesha256(
template.get_serialized()))
if (hash <= difficulty_target):
hash_found = True
else:
nonce_changer(template)
return (template.get_block(), template)
def hash_tx(tx):
if tx.hash:
return tx.hash
if not tx.rawdata:
tx.rawdata = TX_SERIALIZE.serialize(tx)
tx.hash = Uint256.from_bytestr(doublesha256(tx.rawdata))
return tx.hash
def hash_blockheader(blockheader):
if blockheader.hash:
return blockheader.hash
if not blockheader.rawdata:
blockheader.rawdata = BLOCK_SERIALIZE.serialize(blockheader)
blockheader.hash = Uint256.from_bytestr(doublesha256(blockheader.rawdata))
return blockheader.hash
def test_txin_serialize(self):
txin = TxIn(previous_output=Outpoint(hash=Uint256.from_hexstr("17c5cb687ba453ab65e12cdc0d8721c70ab4678665eb200c50cb9f1e3207090e"), index=0),
script=Script([Instruction(72, decodehexstr("3045022100ab2dc8932ca1d26f4cdac1feae09020a60ccc4d17b14e5fc5b21f3ab8c3a9cee022040a7208c172d19a19902280d66201c7fe2c3d8b2df7e23cc4e5b70fd52ecba2c01")),
Instruction(65, decodehexstr("04b77dd1f3a21cb3d067a7e76982a609d7310f8692f5d61346f3225323c425604a0c12862755335c49e392673106adfc5dfdee1e4d367f10353e8911fac687db3e"))]),
sequence=TxIn.NSEQUENCE_FINAL)
self.assertEquals(hexstr(TxinSerializer().serialize(txin)),
"0e0907321e9fcb500c20eb658667b40ac721870ddc2ce165ab53a47b68cbc517000000008b483045022100ab2dc8932ca1d26f4cdac1feae09020a60ccc4d17b14e5fc5b21f3ab8c3a9cee022040a7208c172d19a19902280d66201c7fe2c3d8b2df7e23cc4e5b70fd52ecba2c014104b77dd1f3a21cb3d067a7e76982a609d7310f8692f5d61346f3225323c425604a0c12862755335c49e392673106adfc5dfdee1e4d367f10353e8911fac687db3effffffff")
def test_blockheader_serialize(self):
h = BlockHeader(
version=1,
hash_prev=Uint256.from_hexstr(
"1e4baab89f3a3251818c31bc87f6a33b4a5a88ef76673e2cc77ab2127b7afded"
), #hash_prev
hash_merkle=Uint256.from_hexstr(
"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"
), #merkle
time=1237006505,
bits=486605799,
nonce=2083236893)
self.assertEquals(
hexstr(BlockheaderSerializer().serialize(h)),
"01000000edfd7a7b12b27ac72c3e6776ef885a4a3ba3f687bc318c8151323a9fb8aa4b1e3ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4aa938bb49e703011d1dac2b7c"
)
def get_next_work_required(self, blkprevhash, block):
blkprev = self.database.get_block_handle(blkprevhash)
# Difficulty changes only once every TARGET_INTERVAL blocks (except for testnet)
if ((blkprev.get_height() + 1) % TARGET_INTERVAL):
# Special rules for testnet after 15 Feb 2012
if ((self.database.runmode == TESTNET and (block.blockheader.time > 1329264000))
or (self.database.runmode == TESTNET3)):
return self.get_testnet_work_required_15feb1012(blkprev, block)
# Difficulty unchanged
return (blkprev.get_blockheader().bits)
# Locate the block 2 weeks ago
blk2weekago = blkprev
for i in range(TARGET_INTERVAL-1):
blk2weekago = self.database.get_block_handle(blk2weekago.get_blockheader().hash_prev)
header_block2weekago = blk2weekago.get_blockheader()
header_blocknow = blkprev.get_blockheader()
actual_timespan = header_blocknow.time - header_block2weekago.time
# Limit adjustment step
if actual_timespan < TARGET_TIMESPAN/4:
actual_timespan = TARGET_TIMESPAN/4;
if actual_timespan > TARGET_TIMESPAN*4:
actual_timespan = TARGET_TIMESPAN*4;
# Retarget
new_target = Uint256.from_bignum(header_blocknow.target().get_bignum() * actual_timespan / TARGET_TIMESPAN)
if new_target > PROOF_OF_WORK_LIMIT[self.database.runmode]:
new_target = PROOF_OF_WORK_LIMIT[self.database.runmode]
new_bits = compact_difficulty(new_target)
self.log.info("Retarget: targetTimespan:%d actualTimespan:%d, %08x -> %08x " % (TARGET_TIMESPAN, actual_timespan, header_blocknow.bits, new_bits))
return (new_bits)
def get_next_in_mainchain(self, blockhash):
if not self.indexdb.contains_block(blockhash):
raise BlockNotFound(str(blockhash))
blockindex = self.indexdb.get_blockindex(blockhash)
if (blockindex.hash_next == Uint256.zero()):
return None
return blockindex.hash_next
def _find_fork(self, altchainhash):
hash = altchainhash
while hash != Uint256.zero():
handle = self.get_block_handle(hash)
if handle.is_mainchain():
return hash
hash = handle.get_blockheader().hash_prev
return handle.hash
def test_mine_block(self):
""" Mine a block changing both nonce and extra_nonce"""
def nonce_changer(template):
if template.nonce >= 20:
template.set_extra_nonce(template.extra_nonce + 1)
template.set_nonce(0)
else:
template.set_nonce(template.nonce + 1)
time_source = MockTimeSource(time=1356446436)
miner = BitcoinMiner()
block, template = miner.mine_block(
hash_prev=Uint256.from_hexstr(
"0000000000000000000000000000000000000000000000000000000000000000"
),
block_height=0,
time_source=time_source,
difficulty_bits=524287999,
transactions=[],
coinbase_txout_list=[
TxOut(
5000000000,
Script([
Instruction(
OP_PUSHDATA,
decodehexstr(
"04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f"
)),
Instruction(OP_CHECKSIG)
]))
],
nonce_changer=nonce_changer)
self.assertEquals(block.blockheader.nonce, 8)
self.assertEquals(template.nonce, 8)
self.assertEquals(template.extra_nonce, 14)
self.assertEquals(
block.blockheader.hash_merkle,
Uint256.from_hexstr(
"ca839450c8702d6768d1803bb6d99c6d059a56240933e5bf72cb2936f6c9e211"
))
self.assertEquals(
hash_block(block),
Uint256.from_hexstr(
"003c7a06c7efe128cb3bea692e1a485f7400f3670df7986c020083e9b10e295d"
))
def test_outpoint_serialize(self):
self.assertEquals(
hexstr(OutpointSerializer().serialize(
Outpoint(hash=Uint256.from_hexstr(
"17c5cb687ba453ab65e12cdc0d8721c70ab4678665eb200c50cb9f1e3207090e"
),
index=0))),
"0e0907321e9fcb500c20eb658667b40ac721870ddc2ce165ab53a47b68cbc51700000000"
)
def test_deserialize_tx_message(self):
# TX 1 from block 398 on testnet 3
serialized_tx_message = decodehexstr("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")
tx_message, _ = TxMessageSerializer().deserialize(serialized_tx_message)
expected_message = TxMessage(Tx(version=1,
in_list=[TxIn(previous_output=Outpoint(hash=Uint256.from_hexstr("43cd28c3b56543298ee264e3c01ef2dd8189276bd0c1cf6b86269018c710ce28"),index=0),
script=Script(instructions=[Instruction(73, decodehexstr("3046022100b918951cc55fbb285168004de7eab21e702e89dc43c167ba0fc1b09273e29cf5022100f95c24b6c740e2306a45bea1e7a0c8f2032c9d4da4d8d1cc6b5c4166d1fabfe501")),Instruction(33, decodehexstr("033b2dd6fe53611ef3d112b7098a8999f48bf27c7bf94bd045439d87a9ec11fca3"))]),
sequence=4294967295),TxIn(previous_output=Outpoint(hash=Uint256.from_hexstr("a93c81e534881ff0a1dbb10d08a550336a56129f38100be91ff3c598d41e4ffc"),index=0),
script=Script(instructions=[Instruction(71, decodehexstr("30440220161ee27efad282e8c984051418fcc2bca6854f3f5d4e24031b950bcd7853943a02202b5566c72aeaff2295db82c79d52d88dbe9450e01c6c951d5d0148c290f6cbbe01"))]),
sequence=4294967295),TxIn(previous_output=Outpoint(hash=Uint256.from_hexstr("35ef13cb0ad02556e53a035312e89b4f1ea62d2f1abb36daee6ad490faec5efc"),index=0),
script=Script(instructions=[Instruction(73, decodehexstr("3046022100f7d996bc39ef00b217014ee3e7f8b49ed714fcce2fe970a2ada2b9a87a741c2d022100c55a6089c2b23ec87c5063513c6c8abfc14c913f8ab69cf4ebed6a58c220946901"))]),
sequence=4294967295)],
out_list=[TxOut(value=989000000,
script=Script(instructions=[Instruction(OP_DUP),Instruction(OP_HASH160),Instruction(20, decodehexstr("f069756ffd9d331119e5430268437aed14210afb")),Instruction(OP_EQUALVERIFY),Instruction(OP_CHECKSIG)])),TxOut(value=5000000000,
script=Script(instructions=[Instruction(OP_HASH160),Instruction(20, decodehexstr("290bba32a49315789a030bb40b0047f8fb90ff66")),Instruction(OP_EQUAL)])),TxOut(value=5000000000,
script=Script(instructions=[Instruction(OP_HASH160),Instruction(20, decodehexstr("1d9ca71efa36d814424ea6ca1437e67287aebe34")),Instruction(OP_EQUAL)]))],
locktime=0))
self.assertEquals(tx_message, expected_message)
def test_pop_append_block(self):
self.assertTrue(
self.database1.contains_transaction(
Uint256.from_hexstr(
"53bb1c14b4c6156d7352ee471fb7697736f4696accf5392e0f1830e38143f667"
)))
block = self.database1.pop_block()
self.assertFalse(
self.database1.contains_transaction(
Uint256.from_hexstr(
"53bb1c14b4c6156d7352ee471fb7697736f4696accf5392e0f1830e38143f667"
)))
self.database1.append_block(block)
self.assertTrue(
self.database1.contains_transaction(
Uint256.from_hexstr(
"53bb1c14b4c6156d7352ee471fb7697736f4696accf5392e0f1830e38143f667"
)))
def test_get_block_handle(self):
with self.assertRaises(BlockNotFound):
self.database1.get_block_handle(
Uint256.from_hexstr(
"041f9c93fece90e2e1f729bb9c2b04ba59432592f8ebdc7d117146c74f7c833a"
))
handle1 = self.database1.get_block_handle(
Uint256.from_hexstr(
"001f9c93fece90e2e1f729bb9c2b04ba59432592f8ebdc7d117146c74f7c833a"
))
self.assertEquals(handle1.get_height(), 4)
self.assertEquals(
handle1.get_hash(),
Uint256.from_hexstr(
"001f9c93fece90e2e1f729bb9c2b04ba59432592f8ebdc7d117146c74f7c833a"
))
assert isinstance(handle1.get_block(), Block)
assert isinstance(handle1.get_blockheader(), BlockHeader)
def test_transaction_handle(self):
with self.assertRaises(TransactionNotFound):
self.database1.get_transaction_handle(Uint256.from_hexstr("07c17eafb870acf0fece060b814ff71fd36a7df0f0a3a7e359c2c61b3b34c3e1"))
handle1 = self.database1.get_transaction_handle(Uint256.from_hexstr("cebbc8d7d3550ca6df92eba4f41b93dc55f35b8199bb14dc3d0a95f9bd0e2dbd"))
assert isinstance(handle1.get_transaction(), Tx)
self.assertEquals(str(handle1.get_block_hash()), "001f9c93fece90e2e1f729bb9c2b04ba59432592f8ebdc7d117146c74f7c833a")
self.assertEquals(handle1.output_count(), 7)
self.assertEquals(handle1.is_output_spent(0), False)
self.assertEquals(handle1.is_output_spent(2), True)
self.assertEquals(str(handle1.get_spending_transaction_hash(2)),
"53bb1c14b4c6156d7352ee471fb7697736f4696accf5392e0f1830e38143f667")
handle1.mark_unspent(2)
self.assertEquals(handle1.is_output_spent(2), False)
handle1.mark_spent(0, Uint256.from_hexstr("13bb1c14b4c6156d7352ee471fb7697736f4696accf5392e0f1830e38143f667"))
self.assertEquals(handle1.is_output_spent(2), False)
self.assertEquals(handle1.is_output_spent(0), True)
self.assertEquals(str(handle1.get_spending_transaction_hash(0)),
"13bb1c14b4c6156d7352ee471fb7697736f4696accf5392e0f1830e38143f667")
def test_deserialize_inv_message(self):
serialized_inv_message = decodehexstr(
"f9beb4d9696e76000000000000000000490000008be920f5020100000055b5d3d496e196d624a471b818ba0b1778417ae335a544033536654fdda3eef602000000497b15826573b28c3e83a5d0c5ed30cf48b97dd6bd797849144ea24000000000"
)
inv_message, _ = MessageSerializer(MAIN).deserialize(
serialized_inv_message)
expected_message = InvMessage([
Invitem(
INV_TX,
Uint256.from_hexstr(
"f6eea3dd4f6536350344a535e37a4178170bba18b871a424d696e196d4d3b555"
)),
Invitem(
INV_BLOCK,
Uint256.from_hexstr(
"0000000040a24e14497879bdd67db948cf30edc5d0a5833e8cb2736582157b49"
))
])
self.assertEquals(inv_message, expected_message)
def test_invitem_serialize(self):
blockitem = Invitem(
INV_BLOCK,
Uint256.from_hexstr(
"00000007199508e34a9ff81e6ec0c477a4cccff2a4767a8eee39c11db367b008"
))
txitem = Invitem(
INV_TX,
Uint256.from_hexstr(
"84eb3cf3a391a0a0b70e05a3a54d8385f7dcb3809aaf274d392622205b27f288"
))
self.assertEquals(
hexstr(InvitemSerializer().serialize(blockitem)),
"0200000008b067b31dc139ee8e7a76a4f2cfcca477c4c06e1ef89f4ae308951907000000"
)
self.assertEquals(
hexstr(InvitemSerializer().serialize(txitem)),
"0100000088f2275b202226394d27af9a80b3dcf785834da5a3050eb7a0a091a3f33ceb84"
)
def test_uint256_deserialize(self):
uint256, _ = Uint256Serializer().deserialize(
decodehexstr(
"6a921ac1ae5e23610d07d2b2a9377fbc3c3bb233e900aa1a5bc40f5562a19d0d"
))
self.assertEquals(
uint256,
Uint256.from_hexstr(
"0d9da162550fc45b1aaa00e933b23b3cbc7f37a9b2d2070d61235eaec11a926a"
))
def check_proof_of_work(self, hash, block):
target = block.blockheader.target()
if (target <= Uint256.zero()
or target > PROOF_OF_WORK_LIMIT[self.runmode]):
raise Exception("proof of work: value out of range : %x" %
(block.blockheader.bits))
if (hash > target):
raise Exception(
"proof of work: hash doesn't match target hash:%s, target:%s" %
(hash, target))
def test_deserialize_block_message(self):
#block 22 on testnet 3
serialized_block_msg= decodehexstr("0100000073379e3ff3dffd006e0090e52ac571a9a309490a23e64d15f8af291a0000000051f1c5b2b7c8f980e7715b4d3ce0180f99c44a16fc9c00ede2f5984b8d7cc22d16ed494dffff001d0082467f0101000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0f0416ed494d02fa00062f503253482fffffffff0100f2052a01000000232103b787920594cb47fbfccee915befae40ac2e2b295224460eee075ad0ada4c0c54ac00000000")
block_msg, _ = BlockMessageSerializer().deserialize(serialized_block_msg)
expected_block_msg = BlockMessage(Block(blockheader=BlockHeader(version=1,
hash_prev=Uint256.from_hexstr("000000001a29aff8154de6230a4909a3a971c52ae590006e00fddff33f9e3773"),
hash_merkle=Uint256.from_hexstr("2dc27c8d4b98f5e2ed009cfc164ac4990f18e03c4d5b71e780f9c8b7b2c5f151"),
time=1296690454,
bits=486604799,
nonce=2135327232),
transactions=[Tx(version=1,
in_list=[TxIn(previous_output=Outpoint(hash=Uint256.from_hexstr("0000000000000000000000000000000000000000000000000000000000000000"),index=4294967295),
script=Script(instructions=[Instruction(4, decodehexstr("16ed494d")),Instruction(2, decodehexstr("fa00")),Instruction(6, decodehexstr("2f503253482f"))]),
sequence=4294967295)],
out_list=[TxOut(value=5000000000,
script=Script(instructions=[Instruction(33, decodehexstr("03b787920594cb47fbfccee915befae40ac2e2b295224460eee075ad0ada4c0c54")),Instruction(OP_CHECKSIG)]))],
locktime=0)]))
self.assertEquals(block_msg, expected_block_msg)
def get_median_time_past(self, hashprev):
block_times = []
i = 0
while hashprev != Uint256.zero() and i < MEDIAN_TIME_SPAN:
blk = self.database.get_block_handle(hashprev)
blkheader = blk.get_blockheader()
block_times.append(blkheader.time)
hashprev = blkheader.hash_prev
i += 1
return median(block_times)
def check_merkle_branch(txhash, merkle_branch, index_tx):
"""Return True if the merkle branch is valid for txhash and index_tx.
Attributes:
txhash(Uint256): Hash of a Transaction
merkle_branch(list of Uint256): Merkle Branch
index_tx(int): Index of the transaction in the block.
"""
hash = txhash.get_bytestr()
index = index_tx
otherside_branch, merkle_root = merkle_branch[:-1], merkle_branch[-1]
for otherside in otherside_branch:
if index & 1:
hash = double_sha256_2_input(otherside.get_bytestr(), hash)
else:
hash = double_sha256_2_input(hash, otherside.get_bytestr())
index = index >> 1
print "u", Uint256.from_bytestr(hash)
return (Uint256.from_bytestr(hash) == merkle_root)
def check_merkle_branch(txhash, merkle_branch, index_tx):
"""Return True if the merkle branch is valid for txhash and index_tx.
Attributes:
txhash(Uint256): Hash of a Transaction
merkle_branch(list of Uint256): Merkle Branch
index_tx(int): Index of the transaction in the block.
"""
hash = txhash.get_bytestr()
index = index_tx
otherside_branch, merkle_root = merkle_branch[:-1], merkle_branch[-1]
for otherside in otherside_branch:
if index & 1:
hash = double_sha256_2_input(otherside.get_bytestr(), hash)
else:
hash = double_sha256_2_input(hash, otherside.get_bytestr())
index = index >> 1
print "u", Uint256.from_bytestr(hash)
return (Uint256.from_bytestr(hash) == merkle_root)
def test_serialize_outpoint_index(self):
outpoint = OutpointIndex(12,
Uint256.from_hexstr("2af4cc9ec3358354345c91694031a1fcdbe9a9064197521814e8a20fe018eb5f"),
3,
OutpointIndex.PUBKEY_HASH,
4,
PubKeyOutpoint(PublicKey.from_hexstr("022af4cc9ec3358354345c91691031a1fcdbe9a9064197521814e8a20fe018eb5f"),
is_pubkey_hash=True))
serialized = OutpointIndexSerializer.serialize(outpoint)
self.assertEquals(hexstr(serialized),
"0000000c2af4cc9ec3358354345c91694031a1fcdbe9a9064197521814e8a20fe018eb5f030200000004022af4cc9ec3358354345c91691031a1fcdbe9a9064197521814e8a20fe018eb5f")
def append_block(self, blockhash, block):
file, blockpos = self.blockstore.saveblock(block)
prevblock = self.get_block_handle(block.blockheader.hash_prev)
idx = DbBlockIndex(self.version, Uint256.zero(), file, blockpos, prevblock.get_height()+1, block.blockheader)
self.indexdb.set_blockindex(blockhash, idx)
if prevblock.hash == self.get_mainchain():
prevblock.blockindex.hash_next = blockhash
self.indexdb.set_blockindex(prevblock.hash, prevblock.blockindex)
self.indexdb.set_hashbestchain(blockhash)
self._index_transactions(blockhash, block)
return DBBlockHandle(self.log, self.indexdb, self.blockstore, blockhash, block=block)
def test_tx_deserialize(self):
tx, _ = TxSerializer().deserialize(
decodehexstr(
"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"
))
tx_expected = Tx(
version=1,
in_list=[
TxIn(previous_output=Outpoint(hash=Uint256.from_hexstr(
"17c5cb687ba453ab65e12cdc0d8721c70ab4678665eb200c50cb9f1e3207090e"
),
index=0),
script=Script([
Instruction(
72,
decodehexstr(
"3045022100ab2dc8932ca1d26f4cdac1feae09020a60ccc4d17b14e5fc5b21f3ab8c3a9cee022040a7208c172d19a19902280d66201c7fe2c3d8b2df7e23cc4e5b70fd52ecba2c01"
)),
Instruction(
65,
decodehexstr(
"04b77dd1f3a21cb3d067a7e76982a609d7310f8692f5d61346f3225323c425604a0c12862755335c49e392673106adfc5dfdee1e4d367f10353e8911fac687db3e"
))
]),
sequence=TxIn.NSEQUENCE_FINAL)
],
out_list=[
TxOut(value=24990000000,
script=Script([
Instruction(OP_DUP),
Instruction(OP_HASH160),
Instruction(
20,
decodehexstr(
"4d8b17fbce571614be89df4bd872de892a479844")),
Instruction(OP_EQUALVERIFY),
Instruction(OP_CHECKSIG)
])),
TxOut(value=5000000000,
script=Script([
Instruction(OP_DUP),
Instruction(OP_HASH160),
Instruction(
20,
decodehexstr(
"fadad27c40adbe230f5e3c04d44a292975084831")),
Instruction(OP_EQUALVERIFY),
Instruction(OP_CHECKSIG)
]))
],
locktime=0)
self.assertEquals(tx, tx_expected)
def test_serialize_tx_message(self):
# TX 1 from block 389 on testnet 3
tx_message = TxMessage(Tx(version=1,
in_list=[TxIn(previous_output=Outpoint(hash=Uint256.from_hexstr("f519f238c54e20bb418bb4513ce75484546d198200a901be55152e12cfa82652"),index=1),
script=Script(instructions=[Instruction(73, decodehexstr("3046022100b96e2fd2015bb3fe22c23c712c3ac4a8636d4a78df7d669babd64eaba314c236022100f402d7e3392d1770ce2be0c823eab0122bb83ee0bd65f5de54a1feb53e452eed01")),Instruction(65, decodehexstr("04c4bee5e6dbb5c1651437cb4386c1515c7776c64535077204c6f24f05a37d04a32bc78beb2193b53b104c9954c44b0ce168bc78efd5f1e1c7db9d6c21b3016599"))]),
sequence=4294967295),TxIn(previous_output=Outpoint(hash=Uint256.from_hexstr("d748009c88abacfbd8d0dafb5552f0700a16f9a35ff41583988d9f70618c1971"),index=0),
script=Script(instructions=[Instruction(72, decodehexstr("304502210092e96f4185fc1bb74b4d9c258219dc5ffc71afb43e73ec0e78bdd91bafbe386e022019fc5b3d9602005b61f5dc75e7bd4dde1c19a0700c0a7958503528014d39019101")),Instruction(33, decodehexstr("02274eae01d391bbec32d4b60e24d5d24f9cc23ca8da6708cf6c062381bfa71006"))]),
sequence=4294967295)],
out_list=[TxOut(value=5000000000,
script=Script(instructions=[Instruction(OP_DUP),Instruction(OP_HASH160),Instruction(20, decodehexstr("dbf89509176a975e41d04cc0af24cfc8de4394a9")),Instruction(OP_EQUALVERIFY),Instruction(OP_CHECKSIG)]))],
locktime=0))
serialized_msg = TxMessageSerializer().serialize(tx_message)
self.assertEquals(hexstr(serialized_msg), "01000000025226a8cf122e1555be01a90082196d548454e73c51b48b41bb204ec538f219f5010000008c493046022100b96e2fd2015bb3fe22c23c712c3ac4a8636d4a78df7d669babd64eaba314c236022100f402d7e3392d1770ce2be0c823eab0122bb83ee0bd65f5de54a1feb53e452eed014104c4bee5e6dbb5c1651437cb4386c1515c7776c64535077204c6f24f05a37d04a32bc78beb2193b53b104c9954c44b0ce168bc78efd5f1e1c7db9d6c21b3016599ffffffff71198c61709f8d988315f45fa3f9160a70f05255fbdad0d8fbacab889c0048d7000000006b48304502210092e96f4185fc1bb74b4d9c258219dc5ffc71afb43e73ec0e78bdd91bafbe386e022019fc5b3d9602005b61f5dc75e7bd4dde1c19a0700c0a7958503528014d390191012102274eae01d391bbec32d4b60e24d5d24f9cc23ca8da6708cf6c062381bfa71006ffffffff0100f2052a010000001976a914dbf89509176a975e41d04cc0af24cfc8de4394a988ac00000000")
def test_mine_block(self):
""" Mine a block changing both nonce and extra_nonce"""
def nonce_changer(template):
if template.nonce >= 20:
template.set_extra_nonce(template.extra_nonce + 1)
template.set_nonce(0)
else:
template.set_nonce(template.nonce + 1)
time_source = MockTimeSource(time=1356446436)
miner = BitcoinMiner()
block, template = miner.mine_block(hash_prev=Uint256.from_hexstr("0000000000000000000000000000000000000000000000000000000000000000"),
block_height=0,
time_source=time_source,
difficulty_bits=524287999,
transactions=[],
coinbase_txout_list=[TxOut(5000000000, Script([Instruction(OP_PUSHDATA, decodehexstr("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f")),Instruction(OP_CHECKSIG)]))],
nonce_changer=nonce_changer)
self.assertEquals(block.blockheader.nonce, 8)
self.assertEquals(template.nonce, 8)
self.assertEquals(template.extra_nonce, 14)
self.assertEquals(block.blockheader.hash_merkle, Uint256.from_hexstr("ca839450c8702d6768d1803bb6d99c6d059a56240933e5bf72cb2936f6c9e211"))
self.assertEquals(hash_block(block), Uint256.from_hexstr("003c7a06c7efe128cb3bea692e1a485f7400f3670df7986c020083e9b10e295d"))
def test_mine_genesis_block(self):
""" Mine the unitnet GENESIS block """
time_source = MockTimeSource(time=1356446436)
miner = BitcoinMiner()
block, template = miner.mine_block(
hash_prev=Uint256.from_hexstr(
"0000000000000000000000000000000000000000000000000000000000000000"
),
block_height=0,
time_source=time_source,
difficulty_bits=524287999,
transactions=[],
coinbase_txout_list=[
TxOut(
5000000000,
Script([
push_data_instruction(
decodehexstr(
"04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f"
)),
Instruction(OP_CHECKSIG)
]))
],
coinbase_flags=[
"/P2SH/",
"The Times 03/Jan/2009 Chancellor on brink of second bailout for banks"
])
self.assertEquals(block.blockheader.nonce, 1260)
self.assertEquals(
block.blockheader.hash_merkle,
Uint256.from_hexstr(
"cf7ac9a3b387cf5e9fc14e03e2a5bbfc16d1ba00d2af6c96869ab4da949bd240"
))
self.assertEquals(
hash_block(block),
Uint256.from_hexstr(
"003ee3cf880906caa5662f10d4b4fb1c86c1853230dee8a7b8a62f434c73da5f"
))
def test_block_deserialize(self):
blk, _ = BlockSerializer().deserialize(decodehexstr("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"))
blockheader = BlockHeader(version=1,
hash_prev=Uint256.from_hexstr("000000000fec081581146e8b16b275bfa52150ac4174a246cdf62694671ea7a3"),
hash_merkle=Uint256.from_hexstr("0d9da162550fc45b1aaa00e933b23b3cbc7f37a9b2d2070d61235eaec11a926a"),
time=1301129903,
bits=470809215,
nonce=1280448751)
tx1 = Tx(version=1,
in_list=[TxIn(previous_output=Outpoint.null(),
script=Script([Instruction(4, decodehexstr("7ffa0f1c")),
Instruction(1, decodehexstr("4e"))]),
sequence=TxIn.NSEQUENCE_FINAL )],
out_list=[TxOut(value=5002000000,
script=Script([Instruction(65, decodehexstr("049cc3cae30927c40598032044b9e9e25f4739b0d7ade62803f5e9cf075debc817e6d29f42c70d0a1beb1c904eaaa50ef885b011f9fbaa16ef288a7ad193e11567")),
Instruction(OP_CHECKSIG)]))],
locktime=0)
tx2 = Tx(version=1,
in_list=[TxIn(previous_output=Outpoint(hash=Uint256.from_hexstr("17c5cb687ba453ab65e12cdc0d8721c70ab4678665eb200c50cb9f1e3207090e"), index=0),
script=Script([Instruction(72, decodehexstr("3045022100ab2dc8932ca1d26f4cdac1feae09020a60ccc4d17b14e5fc5b21f3ab8c3a9cee022040a7208c172d19a19902280d66201c7fe2c3d8b2df7e23cc4e5b70fd52ecba2c01")),
Instruction(65, decodehexstr("04b77dd1f3a21cb3d067a7e76982a609d7310f8692f5d61346f3225323c425604a0c12862755335c49e392673106adfc5dfdee1e4d367f10353e8911fac687db3e"))]),
sequence=TxIn.NSEQUENCE_FINAL )],
out_list=[TxOut(value=24990000000,
script=Script([Instruction(OP_DUP),
Instruction(OP_HASH160),
Instruction(20, decodehexstr("4d8b17fbce571614be89df4bd872de892a479844")),
Instruction(OP_EQUALVERIFY),
Instruction(OP_CHECKSIG)])),
TxOut(value=5000000000,
script=Script([Instruction(OP_DUP),
Instruction(OP_HASH160),
Instruction(20, decodehexstr("fadad27c40adbe230f5e3c04d44a292975084831")),
Instruction(OP_EQUALVERIFY),
Instruction(OP_CHECKSIG)]))],
locktime=0)
self.assertEquals(blk, Block(blockheader, [tx1, tx2]))
def test_WalletFile_1(self):
io = IoHandle.using_stringio()
wallet = WalletFile.new(io)
wallet.start_tx()
wallet.outpoints[1] = OutpointIndex(
12,
Uint256.from_hexstr(
"2af4cc9ec3358354345c91694031a1fcdbe9a9064197521814e8a20fe018eb5f"
), 3, OutpointIndex.PUBKEY_HASH, 4,
PubKeyOutpoint(PublicKey.from_hexstr(
"022af4cc9ec3358354345c91691031a1fcdbe9a9064197521814e8a20fe018eb5f"
),
is_pubkey_hash=True))
wallet.end_tx()
wallet.commit()
wallet.start_tx()
wallet.outpoints[1] = OutpointIndex(
12,
Uint256.from_hexstr(
"2af4cc9ec3358354345c91694031a1fcdbe9a9064197521814e8a20fe018eb5f"
), 3, OutpointIndex.PUBKEY_HASH, 4,
PubKeyOutpoint(PublicKey.from_hexstr(
"022af4cc9ec3358354345c91691031a1fcdbe9a9064197521814e8a20fe018eb5f"
),
is_pubkey_hash=True))
wallet.end_tx()
wallet.commit()
#with open(r"c:\local\tmp\wallet-test.wlt", "wb") as wlt:
# wlt.write(io.iohandle.getvalue())
io.seek(0, SEEK_SET)
wallet2 = WalletFile.load(io, len(io.iohandle.getvalue()))
print wallet2.fileheader
print wallet2.outpoints
def test_serialize_outpoint_index(self):
outpoint = OutpointIndex(
12,
Uint256.from_hexstr(
"2af4cc9ec3358354345c91694031a1fcdbe9a9064197521814e8a20fe018eb5f"
), 3, OutpointIndex.PUBKEY_HASH, 4,
PubKeyOutpoint(PublicKey.from_hexstr(
"022af4cc9ec3358354345c91691031a1fcdbe9a9064197521814e8a20fe018eb5f"
),
is_pubkey_hash=True))
serialized = OutpointIndexSerializer.serialize(outpoint)
self.assertEquals(
hexstr(serialized),
"0000000c2af4cc9ec3358354345c91694031a1fcdbe9a9064197521814e8a20fe018eb5f030200000004022af4cc9ec3358354345c91691031a1fcdbe9a9064197521814e8a20fe018eb5f"
)
def retarget(time_2weekago,
time_now,
target_timespan,
current_target, # compact format
proof_of_work_limit):
actual_timespan = time_now - time_2weekago
# Limit adjustment step
if actual_timespan < target_timespan/4:
actual_timespan = target_timespan/4;
if actual_timespan > target_timespan*4:
actual_timespan = target_timespan*4;
# Retarget
new_target = Uint256.from_bignum(uint256_difficulty(current_target).get_bignum() * actual_timespan / target_timespan)
if new_target > proof_of_work_limit:
new_target = proof_of_work_limit
return compact_difficulty(new_target)
def send_transaction(self, planned_tx, passphrases):
try:
self.wallet.unlock(passphrases)
privkey_list = []
for outpoint, txout in planned_tx.selected_outputs:
privkey_list.append(
self.wallet.get_txout_private_key_secret(txout))
finally:
self.wallet.lock()
sign_transaction(
planned_tx.tx,
[txout
for outpoint, txout in planned_tx.selected_outputs], privkey_list)
txhash = hash_tx(planned_tx.tx)
self.log.info(
"Sending %f to %s (fee:%f), change address: %s, hash:%s" %
(planned_tx.amount, str(planned_tx.address), planned_tx.fee,
str(planned_tx.change_address), str(txhash)))
#Initially, create an empty MerkleTx (the tx is not yet in a block)
merkle_tx = MerkleTx(planned_tx.tx, Uint256.zero(), [], 4294967295)
self.wallet.begin_updates()
self.wallet.allocate_key(planned_tx.change_public_key, ischange=True)
#Set the spend flags for the input transactions
for outpoint, txout in planned_tx.selected_outputs:
input_wallet_tx = self.wallet.get_transaction(outpoint.hash)
input_wallet_tx.set_spent(outpoint.index)
self.wallet.set_transaction(outpoint.hash, input_wallet_tx)
#Add the wallet_tx (contains supporting transations)
txtime = int(time.time())
wallet_tx = create_wallet_tx(self.blockchain, merkle_tx, txtime)
self.wallet.add_transaction(txhash, wallet_tx)
self.wallet.commit_updates()
self.fire(self.EVT_NEW_TRANSACTION_ITEM,
item=(planned_tx.tx, txhash, txtime, planned_tx.address, "",
-planned_tx.amount, False))
self.compute_balances() # we could only compute delta here
self.fire(self.EVT_PUBLISH_TRANSACTION,
txhash=txhash,
tx=planned_tx.tx)
self.last_tx_publish[txhash] = txtime
#update description of change address
new_description = self.wallet.get_address_description(
planned_tx.change_public_key)
self.fire(self.EVT_NEW_ADDRESS_DESCRIPTION,
public_key=planned_tx.change_public_key,
description=new_description)
def test_merkletx_serialize(self):
# This is tx 37 of block 429 on testnet3
merkle_tx = MerkleTx(
Tx(version=1,
in_list=[TxIn(previous_output=Outpoint(hash=Uint256.from_hexstr("88c844570a227fe89d82e4e20d41576b95df8aa790a799bf7114dbed83b788b0"),index=0),
script=Script(instructions=[Instruction(72, decodehexstr("3045022100813a4dfdfda02946bf9fddc59ffd0b8d2feaa618518a3015fd5e65dd88a0d4480220137b25ea7531e103405bfe1617cb92f524e88c86e66a79c1e3c62558d019528201")),Instruction(33, decodehexstr("03cf163e38520a7b390305528eca2fa1c620f0da225a044017fd92b30067875dc8"))]),
sequence=4294967295)],
out_list=[TxOut(value=4899704976,
script=Script(instructions=[Instruction(OP_DUP),Instruction(OP_HASH160),Instruction(20, decodehexstr("10170e3f7c3b0c93d2e07e90e307d3fb21811702")),Instruction(OP_EQUALVERIFY),Instruction(OP_CHECKSIG)])),TxOut(value=887733,
script=Script(instructions=[Instruction(OP_HASH160),Instruction(20, decodehexstr("184cd0a38ac3b1357d07179553788375a9e8a3b8")),Instruction(OP_EQUAL)]))],
locktime=0),
blockhash=Uint256.from_hexstr("00000000e080223655db52d2c35a37f6aa17a3f2efefa6794fd9831374cff09f"),
merkle_branch=[Uint256.from_hexstr("88c844570a227fe89d82e4e20d41576b95df8aa790a799bf7114dbed83b788b0"),
Uint256.from_hexstr("225dd6a6857be59dbf2d72d4d5cca1325053dd66a9c3a35a16c51de04a1b0d03"),
Uint256.from_hexstr("74f79002e7c2cbbf40581aa56d8037cb32844d34ae049629a757b6ff709a10fa"),
Uint256.from_hexstr("02099d8b6bf46c3f87ccc922dec8c18a9dc420e17ebc672030145bd8ee33ab34"),
Uint256.from_hexstr("15b202c47b1ad2638c4ea260611839be7cdf15e13e6de50861f41e46a5e9f8cf"),
Uint256.from_hexstr("007e2166afda37ce696e971ac530a7cc22e183b37acf57c79cb0ee21a9de2179"),
Uint256.from_hexstr("a7d06d9452a65fae2662ae63c9b450ba4ce22dfab76d22624a95d97d294421d4")],
nindex=37)
self.assertEquals(hexstr(MerkleTxSerializer().serialize(merkle_tx)),
"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")
def deserialize(data):
length = struct.calcsize(">I32sBBI")
if len(data) < length:
raise Exception("size too small")
index_data, outpoint_data = data[:length], data[length:]
id, hash, index, type_value, masterkey_id = struct.unpack(">I32sBBI", index_data)
if type_value not in OutpointIndexSerializer.OUTPOINT_TYPES:
raise Exception("unknown outpoint type: %d" % (type_value))
oupoint_type = OutpointIndexSerializer.OUTPOINT_TYPES[type_value]
if (oupoint_type == OutpointIndex.PUBKEY or
oupoint_type == OutpointIndex.PUBKEY_HASH):
outpoint = PubKeyOutpointSerializer.deserialize(outpoint_data, oupoint_type == OutpointIndex.PUBKEY_HASH)
elif oupoint_type == OutpointIndex.MULTISIG:
outpoint = MultiSigOutpointSerializer.serialize(outpoint_data)
elif oupoint_type == OutpointIndex.SCRIPT_HASH:
outpoint = ScriptHashOutpointSerializer.serialize(outpoint_data)
return OutpointIndex(id, Uint256.from_bytestr_be(hash), index, oupoint_type, masterkey_id, outpoint)
def test_blockheader_template(self):
""" Change nonce and extra_nonce in a blockheader_template """
template = BlockheaderTemplate(
Uint256.from_hexstr(
"0009d8ab497a46a0d6a2b9b302993bd26613b145695d986be50e0b6e68c5b524"
),
1, # version 2 blocks see BIP-34
[
TxOut(
5000000000,
Script([
Instruction(
OP_PUSHDATA,
decodehexstr(
"04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f"
)),
Instruction(OP_CHECKSIG)
]))
],
[],
time=1356447036,
bits=524287999,
nonce=0,
extra_nonce=0,
coinbase_flags=["/P2SH/"])
self.assertEquals(
hexstr(template.get_serialized()),
"0200000024b5c5686e0b0ee56b985d6945b11366d23b9902b3b9a2d6a0467a49abd80900ad7af2ede803ff129e66775d56153a7a649721e524eecad69a437ecdc01e29343cbdd950ffff3f1f00000000"
)
template.set_nonce(8)
self.assertEquals(
hexstr(template.get_serialized()),
"0200000024b5c5686e0b0ee56b985d6945b11366d23b9902b3b9a2d6a0467a49abd80900ad7af2ede803ff129e66775d56153a7a649721e524eecad69a437ecdc01e29343cbdd950ffff3f1f08000000"
)
template.set_nonce(492498294)
self.assertEquals(
hexstr(template.get_serialized()),
"0200000024b5c5686e0b0ee56b985d6945b11366d23b9902b3b9a2d6a0467a49abd80900ad7af2ede803ff129e66775d56153a7a649721e524eecad69a437ecdc01e29343cbdd950ffff3f1f76ed5a1d"
)
template.set_extra_nonce(2)
template.set_nonce(0)
self.assertEquals(
hexstr(template.get_serialized()),
"0200000024b5c5686e0b0ee56b985d6945b11366d23b9902b3b9a2d6a0467a49abd80900e1cc38b530e20307a310a57a6e2e22985ce2e292bfc73b28a723dd77f8e8f0ca3cbdd950ffff3f1f00000000"
)
def get_merkle_branch(block, index_tx):
"""Get the merkle branch of a transaction.
block: block that contains the transaction
index_tx: index of the transaction in the block
Return value: [list of Uint256]
The first element is a hash of a transaction at the bottom of the merkle tree.
The last element is the merkle root.
The algorithm uses XOR 1, to select the opposite element at each level.
"""
merkle_branch = []
merkle_tree = get_merkle_tree(block)
for level in merkle_tree:
merkle_branch.append(Uint256.from_bytestr(level[min(index_tx^1, len(level)-1)]))
index_tx = index_tx >> 1
return (merkle_branch)
def test_blockheader_template(self):
""" Change nonce and extra_nonce in a blockheader_template """
template = BlockheaderTemplate(Uint256.from_hexstr("0009d8ab497a46a0d6a2b9b302993bd26613b145695d986be50e0b6e68c5b524"),
1, # version 2 blocks see BIP-34
[TxOut(5000000000, Script([Instruction(OP_PUSHDATA, decodehexstr("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f")),Instruction(OP_CHECKSIG)]))],
[],
time=1356447036,
bits=524287999,
nonce=0,
extra_nonce=0,
coinbase_flags=["/P2SH/"])
self.assertEquals(hexstr(template.get_serialized()), "0200000024b5c5686e0b0ee56b985d6945b11366d23b9902b3b9a2d6a0467a49abd80900ad7af2ede803ff129e66775d56153a7a649721e524eecad69a437ecdc01e29343cbdd950ffff3f1f00000000")
template.set_nonce(8)
self.assertEquals(hexstr(template.get_serialized()), "0200000024b5c5686e0b0ee56b985d6945b11366d23b9902b3b9a2d6a0467a49abd80900ad7af2ede803ff129e66775d56153a7a649721e524eecad69a437ecdc01e29343cbdd950ffff3f1f08000000")
template.set_nonce(492498294)
self.assertEquals(hexstr(template.get_serialized()), "0200000024b5c5686e0b0ee56b985d6945b11366d23b9902b3b9a2d6a0467a49abd80900ad7af2ede803ff129e66775d56153a7a649721e524eecad69a437ecdc01e29343cbdd950ffff3f1f76ed5a1d")
template.set_extra_nonce(2)
template.set_nonce(0)
self.assertEquals(hexstr(template.get_serialized()), "0200000024b5c5686e0b0ee56b985d6945b11366d23b9902b3b9a2d6a0467a49abd80900e1cc38b530e20307a310a57a6e2e22985ce2e292bfc73b28a723dd77f8e8f0ca3cbdd950ffff3f1f00000000")
def test_tx_serialize(self):
tx = Tx(version=1,
in_list=[TxIn(previous_output=Outpoint(hash=Uint256.from_hexstr("17c5cb687ba453ab65e12cdc0d8721c70ab4678665eb200c50cb9f1e3207090e"), index=0),
script=Script([Instruction(72, decodehexstr("3045022100ab2dc8932ca1d26f4cdac1feae09020a60ccc4d17b14e5fc5b21f3ab8c3a9cee022040a7208c172d19a19902280d66201c7fe2c3d8b2df7e23cc4e5b70fd52ecba2c01")),
Instruction(65, decodehexstr("04b77dd1f3a21cb3d067a7e76982a609d7310f8692f5d61346f3225323c425604a0c12862755335c49e392673106adfc5dfdee1e4d367f10353e8911fac687db3e"))]),
sequence=TxIn.NSEQUENCE_FINAL )],
out_list=[TxOut(value=24990000000,
script=Script([Instruction(OP_DUP),
Instruction(OP_HASH160),
Instruction(20, decodehexstr("4d8b17fbce571614be89df4bd872de892a479844")),
Instruction(OP_EQUALVERIFY),
Instruction(OP_CHECKSIG)])),
TxOut(value=5000000000,
script=Script([Instruction(OP_DUP),
Instruction(OP_HASH160),
Instruction(20, decodehexstr("fadad27c40adbe230f5e3c04d44a292975084831")),
Instruction(OP_EQUALVERIFY),
Instruction(OP_CHECKSIG)]))],
locktime=0)
self.assertEquals(hexstr(TxSerializer().serialize(tx)), "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")