test/functional/segwit.py

   1 #!/usr/bin/env python3
   2 # Copyright (c) 2016 The Bitcoin Core developers
   3 # Distributed under the MIT software license, see the accompanying
   4 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
   5 """Test the SegWit changeover logic."""
   6
   7 from test_framework.test_framework import BitcoinTestFramework
   8 from test_framework.util import *
   9 from test_framework.mininode import sha256, CTransaction, CTxIn, COutPoint, CTxOut, COIN, ToHex, FromHex
  10 from test_framework.address import script_to_p2sh, key_to_p2pkh
  11 from test_framework.script import CScript, OP_HASH160, OP_CHECKSIG, OP_0, hash160, OP_EQUAL, OP_DUP, OP_EQUALVERIFY, OP_1, OP_2, OP_CHECKMULTISIG, OP_TRUE
  12 from io import BytesIO
  13
  14 NODE_0 = 0
  15 NODE_1 = 1
  16 NODE_2 = 2
  17 WIT_V0 = 0
  18 WIT_V1 = 1
  19
  20 # Create a scriptPubKey corresponding to either a P2WPKH output for the
  21 # given pubkey, or a P2WSH output of a 1-of-1 multisig for the given
  22 # pubkey. Returns the hex encoding of the scriptPubKey.
  23 def witness_script(use_p2wsh, pubkey):
  24     if (use_p2wsh == False):
  25         # P2WPKH instead
  26         pubkeyhash = hash160(hex_str_to_bytes(pubkey))
  27         pkscript = CScript([OP_0, pubkeyhash])
  28     else:
  29         # 1-of-1 multisig
  30         witness_program = CScript([OP_1, hex_str_to_bytes(pubkey), OP_1, OP_CHECKMULTISIG])
  31         scripthash = sha256(witness_program)
  32         pkscript = CScript([OP_0, scripthash])
  33     return bytes_to_hex_str(pkscript)
  34
  35 # Return a transaction (in hex) that spends the given utxo to a segwit output,
  36 # optionally wrapping the segwit output using P2SH.
  37 def create_witnessprogram(use_p2wsh, utxo, pubkey, encode_p2sh, amount):
  38     pkscript = hex_str_to_bytes(witness_script(use_p2wsh, pubkey))
  39     if (encode_p2sh):
  40         p2sh_hash = hash160(pkscript)
  41         pkscript = CScript([OP_HASH160, p2sh_hash, OP_EQUAL])
  42     tx = CTransaction()
  43     tx.vin.append(CTxIn(COutPoint(int(utxo["txid"], 16), utxo["vout"]), b""))
  44     tx.vout.append(CTxOut(int(amount*COIN), pkscript))
  45     return ToHex(tx)
  46
  47 # Create a transaction spending a given utxo to a segwit output corresponding
  48 # to the given pubkey: use_p2wsh determines whether to use P2WPKH or P2WSH;
  49 # encode_p2sh determines whether to wrap in P2SH.
  50 # sign=True will have the given node sign the transaction.
  51 # insert_redeem_script will be added to the scriptSig, if given.
  52 def send_to_witness(use_p2wsh, node, utxo, pubkey, encode_p2sh, amount, sign=True, insert_redeem_script=""):
  53     tx_to_witness = create_witnessprogram(use_p2wsh, utxo, pubkey, encode_p2sh, amount)
  54     if (sign):
  55         signed = node.signrawtransaction(tx_to_witness)
  56         assert("errors" not in signed or len(["errors"]) == 0)
  57         return node.sendrawtransaction(signed["hex"])
  58     else:
  59         if (insert_redeem_script):
  60             tx = FromHex(CTransaction(), tx_to_witness)
  61             tx.vin[0].scriptSig += CScript([hex_str_to_bytes(insert_redeem_script)])
  62             tx_to_witness = ToHex(tx)
  63
  64     return node.sendrawtransaction(tx_to_witness)
  65
  66 def getutxo(txid):
  67     utxo = {}
  68     utxo["vout"] = 0
  69     utxo["txid"] = txid
  70     return utxo
  71
  72 def find_unspent(node, min_value):
  73     for utxo in node.listunspent():
  74         if utxo['amount'] >= min_value:
  75             return utxo
  76
  77 class SegWitTest(BitcoinTestFramework):
  78     def set_test_params(self):
  79         self.setup_clean_chain = True
  80         self.num_nodes = 3
  81         self.extra_args = [["-walletprematurewitness", "-rpcserialversion=0"],
  82                            ["-blockversion=4", "-promiscuousmempoolflags=517", "-prematurewitness", "-walletprematurewitness", "-rpcserialversion=1"],
  83                            ["-blockversion=536870915", "-promiscuousmempoolflags=517", "-prematurewitness", "-walletprematurewitness"]]
  84
  85     def setup_network(self):
  86         super().setup_network()
  87         connect_nodes(self.nodes[0], 2)
  88         self.sync_all()
  89
  90     def success_mine(self, node, txid, sign, redeem_script=""):
  91         send_to_witness(1, node, getutxo(txid), self.pubkey[0], False, Decimal("49.998"), sign, redeem_script)
  92         block = node.generate(1)
  93         assert_equal(len(node.getblock(block[0])["tx"]), 2)
  94         sync_blocks(self.nodes)
  95
  96     def skip_mine(self, node, txid, sign, redeem_script=""):
  97         send_to_witness(1, node, getutxo(txid), self.pubkey[0], False, Decimal("49.998"), sign, redeem_script)
  98         block = node.generate(1)
  99         assert_equal(len(node.getblock(block[0])["tx"]), 1)
 100         sync_blocks(self.nodes)
 101
 102     def fail_accept(self, node, error_msg, txid, sign, redeem_script=""):
 103         assert_raises_jsonrpc(-26, error_msg, send_to_witness, 1, node, getutxo(txid), self.pubkey[0], False, Decimal("49.998"), sign, redeem_script)
 104
 105     def fail_mine(self, node, txid, sign, redeem_script=""):
 106         send_to_witness(1, node, getutxo(txid), self.pubkey[0], False, Decimal("49.998"), sign, redeem_script)
 107         assert_raises_jsonrpc(-1, "CreateNewBlock: TestBlockValidity failed", node.generate, 1)
 108         sync_blocks(self.nodes)
 109
 110     def run_test(self):
 111         self.nodes[0].generate(161) #block 161
 112
 113         self.log.info("Verify sigops are counted in GBT with pre-BIP141 rules before the fork")
 114         txid = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 1)
 115         tmpl = self.nodes[0].getblocktemplate({})
 116         assert(tmpl['sizelimit'] == 1000000)
 117         assert('weightlimit' not in tmpl)
 118         assert(tmpl['sigoplimit'] == 20000)
 119         assert(tmpl['transactions'][0]['hash'] == txid)
 120         assert(tmpl['transactions'][0]['sigops'] == 2)
 121         tmpl = self.nodes[0].getblocktemplate({'rules':['segwit']})
 122         assert(tmpl['sizelimit'] == 1000000)
 123         assert('weightlimit' not in tmpl)
 124         assert(tmpl['sigoplimit'] == 20000)
 125         assert(tmpl['transactions'][0]['hash'] == txid)
 126         assert(tmpl['transactions'][0]['sigops'] == 2)
 127         self.nodes[0].generate(1) #block 162
 128
 129         balance_presetup = self.nodes[0].getbalance()
 130         self.pubkey = []
 131         p2sh_ids = [] # p2sh_ids[NODE][VER] is an array of txids that spend to a witness version VER pkscript to an address for NODE embedded in p2sh
 132         wit_ids = [] # wit_ids[NODE][VER] is an array of txids that spend to a witness version VER pkscript to an address for NODE via bare witness
 133         for i in range(3):
 134             newaddress = self.nodes[i].getnewaddress()
 135             self.pubkey.append(self.nodes[i].validateaddress(newaddress)["pubkey"])
 136             multiaddress = self.nodes[i].addmultisigaddress(1, [self.pubkey[-1]])
 137             self.nodes[i].addwitnessaddress(newaddress)
 138             self.nodes[i].addwitnessaddress(multiaddress)
 139             p2sh_ids.append([])
 140             wit_ids.append([])
 141             for v in range(2):
 142                 p2sh_ids[i].append([])
 143                 wit_ids[i].append([])
 144
 145         for i in range(5):
 146             for n in range(3):
 147                 for v in range(2):
 148                     wit_ids[n][v].append(send_to_witness(v, self.nodes[0], find_unspent(self.nodes[0], 50), self.pubkey[n], False, Decimal("49.999")))
 149                     p2sh_ids[n][v].append(send_to_witness(v, self.nodes[0], find_unspent(self.nodes[0], 50), self.pubkey[n], True, Decimal("49.999")))
 150
 151         self.nodes[0].generate(1) #block 163
 152         sync_blocks(self.nodes)
 153
 154         # Make sure all nodes recognize the transactions as theirs
 155         assert_equal(self.nodes[0].getbalance(), balance_presetup - 60*50 + 20*Decimal("49.999") + 50)
 156         assert_equal(self.nodes[1].getbalance(), 20*Decimal("49.999"))
 157         assert_equal(self.nodes[2].getbalance(), 20*Decimal("49.999"))
 158
 159         self.nodes[0].generate(260) #block 423
 160         sync_blocks(self.nodes)
 161
 162         self.log.info("Verify default node can't accept any witness format txs before fork")
 163         # unsigned, no scriptsig
 164         self.fail_accept(self.nodes[0], "mandatory-script-verify-flag", wit_ids[NODE_0][WIT_V0][0], False)
 165         self.fail_accept(self.nodes[0], "mandatory-script-verify-flag", wit_ids[NODE_0][WIT_V1][0], False)
 166         self.fail_accept(self.nodes[0], "mandatory-script-verify-flag", p2sh_ids[NODE_0][WIT_V0][0], False)
 167         self.fail_accept(self.nodes[0], "mandatory-script-verify-flag", p2sh_ids[NODE_0][WIT_V1][0], False)
 168         # unsigned with redeem script
 169         self.fail_accept(self.nodes[0], "mandatory-script-verify-flag", p2sh_ids[NODE_0][WIT_V0][0], False, witness_script(False, self.pubkey[0]))
 170         self.fail_accept(self.nodes[0], "mandatory-script-verify-flag", p2sh_ids[NODE_0][WIT_V1][0], False, witness_script(True, self.pubkey[0]))
 171         # signed
 172         self.fail_accept(self.nodes[0], "no-witness-yet", wit_ids[NODE_0][WIT_V0][0], True)
 173         self.fail_accept(self.nodes[0], "no-witness-yet", wit_ids[NODE_0][WIT_V1][0], True)
 174         self.fail_accept(self.nodes[0], "no-witness-yet", p2sh_ids[NODE_0][WIT_V0][0], True)
 175         self.fail_accept(self.nodes[0], "no-witness-yet", p2sh_ids[NODE_0][WIT_V1][0], True)
 176
 177         self.log.info("Verify witness txs are skipped for mining before the fork")
 178         self.skip_mine(self.nodes[2], wit_ids[NODE_2][WIT_V0][0], True) #block 424
 179         self.skip_mine(self.nodes[2], wit_ids[NODE_2][WIT_V1][0], True) #block 425
 180         self.skip_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V0][0], True) #block 426
 181         self.skip_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V1][0], True) #block 427
 182
 183         # TODO: An old node would see these txs without witnesses and be able to mine them
 184
 185         self.log.info("Verify unsigned bare witness txs in versionbits-setting blocks are valid before the fork")
 186         self.success_mine(self.nodes[2], wit_ids[NODE_2][WIT_V0][1], False) #block 428
 187         self.success_mine(self.nodes[2], wit_ids[NODE_2][WIT_V1][1], False) #block 429
 188
 189         self.log.info("Verify unsigned p2sh witness txs without a redeem script are invalid")
 190         self.fail_accept(self.nodes[2], "mandatory-script-verify-flag", p2sh_ids[NODE_2][WIT_V0][1], False)
 191         self.fail_accept(self.nodes[2], "mandatory-script-verify-flag", p2sh_ids[NODE_2][WIT_V1][1], False)
 192
 193         self.log.info("Verify unsigned p2sh witness txs with a redeem script in versionbits-settings blocks are valid before the fork")
 194         self.success_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V0][1], False, witness_script(False, self.pubkey[2])) #block 430
 195         self.success_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V1][1], False, witness_script(True, self.pubkey[2])) #block 431
 196
 197         self.log.info("Verify previous witness txs skipped for mining can now be mined")
 198         assert_equal(len(self.nodes[2].getrawmempool()), 4)
 199         block = self.nodes[2].generate(1) #block 432 (first block with new rules; 432 = 144 * 3)
 200         sync_blocks(self.nodes)
 201         assert_equal(len(self.nodes[2].getrawmempool()), 0)
 202         segwit_tx_list = self.nodes[2].getblock(block[0])["tx"]
 203         assert_equal(len(segwit_tx_list), 5)
 204
 205         self.log.info("Verify block and transaction serialization rpcs return differing serializations depending on rpc serialization flag")
 206         assert(self.nodes[2].getblock(block[0], False) !=  self.nodes[0].getblock(block[0], False))
 207         assert(self.nodes[1].getblock(block[0], False) ==  self.nodes[2].getblock(block[0], False))
 208         for i in range(len(segwit_tx_list)):
 209             tx = FromHex(CTransaction(), self.nodes[2].gettransaction(segwit_tx_list[i])["hex"])
 210             assert(self.nodes[2].getrawtransaction(segwit_tx_list[i]) != self.nodes[0].getrawtransaction(segwit_tx_list[i]))
 211             assert(self.nodes[1].getrawtransaction(segwit_tx_list[i], 0) == self.nodes[2].getrawtransaction(segwit_tx_list[i]))
 212             assert(self.nodes[0].getrawtransaction(segwit_tx_list[i]) != self.nodes[2].gettransaction(segwit_tx_list[i])["hex"])
 213             assert(self.nodes[1].getrawtransaction(segwit_tx_list[i]) == self.nodes[2].gettransaction(segwit_tx_list[i])["hex"])
 214             assert(self.nodes[0].getrawtransaction(segwit_tx_list[i]) == bytes_to_hex_str(tx.serialize_without_witness()))
 215
 216         self.log.info("Verify witness txs without witness data are invalid after the fork")
 217         self.fail_mine(self.nodes[2], wit_ids[NODE_2][WIT_V0][2], False)
 218         self.fail_mine(self.nodes[2], wit_ids[NODE_2][WIT_V1][2], False)
 219         self.fail_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V0][2], False, witness_script(False, self.pubkey[2]))
 220         self.fail_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V1][2], False, witness_script(True, self.pubkey[2]))
 221
 222         self.log.info("Verify default node can now use witness txs")
 223         self.success_mine(self.nodes[0], wit_ids[NODE_0][WIT_V0][0], True) #block 432
 224         self.success_mine(self.nodes[0], wit_ids[NODE_0][WIT_V1][0], True) #block 433
 225         self.success_mine(self.nodes[0], p2sh_ids[NODE_0][WIT_V0][0], True) #block 434
 226         self.success_mine(self.nodes[0], p2sh_ids[NODE_0][WIT_V1][0], True) #block 435
 227
 228         self.log.info("Verify sigops are counted in GBT with BIP141 rules after the fork")
 229         txid = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 1)
 230         tmpl = self.nodes[0].getblocktemplate({'rules':['segwit']})
 231         assert(tmpl['sizelimit'] >= 3999577)  # actual maximum size is lower due to minimum mandatory non-witness data
 232         assert(tmpl['weightlimit'] == 4000000)
 233         assert(tmpl['sigoplimit'] == 80000)
 234         assert(tmpl['transactions'][0]['txid'] == txid)
 235         assert(tmpl['transactions'][0]['sigops'] == 8)
 236
 237         self.nodes[0].generate(1) # Mine a block to clear the gbt cache
 238
 239         self.log.info("Non-segwit miners are able to use GBT response after activation.")
 240         # Create a 3-tx chain: tx1 (non-segwit input, paying to a segwit output) ->
 241         #                      tx2 (segwit input, paying to a non-segwit output) ->
 242         #                      tx3 (non-segwit input, paying to a non-segwit output).
 243         # tx1 is allowed to appear in the block, but no others.
 244         txid1 = send_to_witness(1, self.nodes[0], find_unspent(self.nodes[0], 50), self.pubkey[0], False, Decimal("49.996"))
 245         hex_tx = self.nodes[0].gettransaction(txid)['hex']
 246         tx = FromHex(CTransaction(), hex_tx)
 247         assert(tx.wit.is_null()) # This should not be a segwit input
 248         assert(txid1 in self.nodes[0].getrawmempool())
 249
 250         # Now create tx2, which will spend from txid1.
 251         tx = CTransaction()
 252         tx.vin.append(CTxIn(COutPoint(int(txid1, 16), 0), b''))
 253         tx.vout.append(CTxOut(int(49.99*COIN), CScript([OP_TRUE])))
 254         tx2_hex = self.nodes[0].signrawtransaction(ToHex(tx))['hex']
 255         txid2 = self.nodes[0].sendrawtransaction(tx2_hex)
 256         tx = FromHex(CTransaction(), tx2_hex)
 257         assert(not tx.wit.is_null())
 258
 259         # Now create tx3, which will spend from txid2
 260         tx = CTransaction()
 261         tx.vin.append(CTxIn(COutPoint(int(txid2, 16), 0), b""))
 262         tx.vout.append(CTxOut(int(49.95*COIN), CScript([OP_TRUE]))) # Huge fee
 263         tx.calc_sha256()
 264         txid3 = self.nodes[0].sendrawtransaction(ToHex(tx))
 265         assert(tx.wit.is_null())
 266         assert(txid3 in self.nodes[0].getrawmempool())
 267
 268         # Now try calling getblocktemplate() without segwit support.
 269         template = self.nodes[0].getblocktemplate()
 270
 271         # Check that tx1 is the only transaction of the 3 in the template.
 272         template_txids = [ t['txid'] for t in template['transactions'] ]
 273         assert(txid2 not in template_txids and txid3 not in template_txids)
 274         assert(txid1 in template_txids)
 275
 276         # Check that running with segwit support results in all 3 being included.
 277         template = self.nodes[0].getblocktemplate({"rules": ["segwit"]})
 278         template_txids = [ t['txid'] for t in template['transactions'] ]
 279         assert(txid1 in template_txids)
 280         assert(txid2 in template_txids)
 281         assert(txid3 in template_txids)
 282
 283         # Mine a block to clear the gbt cache again.
 284         self.nodes[0].generate(1)
 285
 286         self.log.info("Verify behaviour of importaddress, addwitnessaddress and listunspent")
 287
 288         # Some public keys to be used later
 289         pubkeys = [
 290             "0363D44AABD0F1699138239DF2F042C3282C0671CC7A76826A55C8203D90E39242", # cPiM8Ub4heR9NBYmgVzJQiUH1if44GSBGiqaeJySuL2BKxubvgwb
 291             "02D3E626B3E616FC8662B489C123349FECBFC611E778E5BE739B257EAE4721E5BF", # cPpAdHaD6VoYbW78kveN2bsvb45Q7G5PhaPApVUGwvF8VQ9brD97
 292             "04A47F2CBCEFFA7B9BCDA184E7D5668D3DA6F9079AD41E422FA5FD7B2D458F2538A62F5BD8EC85C2477F39650BD391EA6250207065B2A81DA8B009FC891E898F0E", # 91zqCU5B9sdWxzMt1ca3VzbtVm2YM6Hi5Rxn4UDtxEaN9C9nzXV
 293             "02A47F2CBCEFFA7B9BCDA184E7D5668D3DA6F9079AD41E422FA5FD7B2D458F2538", # cPQFjcVRpAUBG8BA9hzr2yEzHwKoMgLkJZBBtK9vJnvGJgMjzTbd
 294             "036722F784214129FEB9E8129D626324F3F6716555B603FFE8300BBCB882151228", # cQGtcm34xiLjB1v7bkRa4V3aAc9tS2UTuBZ1UnZGeSeNy627fN66
 295             "0266A8396EE936BF6D99D17920DB21C6C7B1AB14C639D5CD72B300297E416FD2EC", # cTW5mR5M45vHxXkeChZdtSPozrFwFgmEvTNnanCW6wrqwaCZ1X7K
 296             "0450A38BD7F0AC212FEBA77354A9B036A32E0F7C81FC4E0C5ADCA7C549C4505D2522458C2D9AE3CEFD684E039194B72C8A10F9CB9D4764AB26FCC2718D421D3B84", # 92h2XPssjBpsJN5CqSP7v9a7cf2kgDunBC6PDFwJHMACM1rrVBJ
 297         ]
 298
 299         # Import a compressed key and an uncompressed key, generate some multisig addresses
 300         self.nodes[0].importprivkey("92e6XLo5jVAVwrQKPNTs93oQco8f8sDNBcpv73Dsrs397fQtFQn")
 301         uncompressed_spendable_address = ["mvozP4UwyGD2mGZU4D2eMvMLPB9WkMmMQu"]
 302         self.nodes[0].importprivkey("cNC8eQ5dg3mFAVePDX4ddmPYpPbw41r9bm2jd1nLJT77e6RrzTRR")
 303         compressed_spendable_address = ["mmWQubrDomqpgSYekvsU7HWEVjLFHAakLe"]
 304         assert ((self.nodes[0].validateaddress(uncompressed_spendable_address[0])['iscompressed'] == False))
 305         assert ((self.nodes[0].validateaddress(compressed_spendable_address[0])['iscompressed'] == True))
 306
 307         self.nodes[0].importpubkey(pubkeys[0])
 308         compressed_solvable_address = [key_to_p2pkh(pubkeys[0])]
 309         self.nodes[0].importpubkey(pubkeys[1])
 310         compressed_solvable_address.append(key_to_p2pkh(pubkeys[1]))
 311         self.nodes[0].importpubkey(pubkeys[2])
 312         uncompressed_solvable_address = [key_to_p2pkh(pubkeys[2])]
 313
 314         spendable_anytime = []                      # These outputs should be seen anytime after importprivkey and addmultisigaddress
 315         spendable_after_importaddress = []          # These outputs should be seen after importaddress
 316         solvable_after_importaddress = []           # These outputs should be seen after importaddress but not spendable
 317         unsolvable_after_importaddress = []         # These outputs should be unsolvable after importaddress
 318         solvable_anytime = []                       # These outputs should be solvable after importpubkey
 319         unseen_anytime = []                         # These outputs should never be seen
 320
 321         uncompressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [uncompressed_spendable_address[0], compressed_spendable_address[0]]))
 322         uncompressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [uncompressed_spendable_address[0], uncompressed_spendable_address[0]]))
 323         compressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_spendable_address[0], compressed_spendable_address[0]]))
 324         uncompressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_spendable_address[0], uncompressed_solvable_address[0]]))
 325         compressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_spendable_address[0], compressed_solvable_address[0]]))
 326         compressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_solvable_address[0], compressed_solvable_address[1]]))
 327         unknown_address = ["mtKKyoHabkk6e4ppT7NaM7THqPUt7AzPrT", "2NDP3jLWAFT8NDAiUa9qiE6oBt2awmMq7Dx"]
 328
 329         # Test multisig_without_privkey
 330         # We have 2 public keys without private keys, use addmultisigaddress to add to wallet.
 331         # Money sent to P2SH of multisig of this should only be seen after importaddress with the BASE58 P2SH address.
 332
 333         multisig_without_privkey_address = self.nodes[0].addmultisigaddress(2, [pubkeys[3], pubkeys[4]])
 334         script = CScript([OP_2, hex_str_to_bytes(pubkeys[3]), hex_str_to_bytes(pubkeys[4]), OP_2, OP_CHECKMULTISIG])
 335         solvable_after_importaddress.append(CScript([OP_HASH160, hash160(script), OP_EQUAL]))
 336
 337         for i in compressed_spendable_address:
 338             v = self.nodes[0].validateaddress(i)
 339             if (v['isscript']):
 340                 [bare, p2sh, p2wsh, p2sh_p2wsh] = self.p2sh_address_to_script(v)
 341                 # bare and p2sh multisig with compressed keys should always be spendable
 342                 spendable_anytime.extend([bare, p2sh])
 343                 # P2WSH and P2SH(P2WSH) multisig with compressed keys are spendable after direct importaddress
 344                 spendable_after_importaddress.extend([p2wsh, p2sh_p2wsh])
 345             else:
 346                 [p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh] = self.p2pkh_address_to_script(v)
 347                 # normal P2PKH and P2PK with compressed keys should always be spendable
 348                 spendable_anytime.extend([p2pkh, p2pk])
 349                 # P2SH_P2PK, P2SH_P2PKH, and witness with compressed keys are spendable after direct importaddress
 350                 spendable_after_importaddress.extend([p2wpkh, p2sh_p2wpkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh])
 351
 352         for i in uncompressed_spendable_address:
 353             v = self.nodes[0].validateaddress(i)
 354             if (v['isscript']):
 355                 [bare, p2sh, p2wsh, p2sh_p2wsh] = self.p2sh_address_to_script(v)
 356                 # bare and p2sh multisig with uncompressed keys should always be spendable
 357                 spendable_anytime.extend([bare, p2sh])
 358                 # P2WSH and P2SH(P2WSH) multisig with uncompressed keys are never seen
 359                 unseen_anytime.extend([p2wsh, p2sh_p2wsh])
 360             else:
 361                 [p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh] = self.p2pkh_address_to_script(v)
 362                 # normal P2PKH and P2PK with uncompressed keys should always be spendable
 363                 spendable_anytime.extend([p2pkh, p2pk])
 364                 # P2SH_P2PK and P2SH_P2PKH are spendable after direct importaddress
 365                 spendable_after_importaddress.extend([p2sh_p2pk, p2sh_p2pkh])
 366                 # witness with uncompressed keys are never seen
 367                 unseen_anytime.extend([p2wpkh, p2sh_p2wpkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh])
 368
 369         for i in compressed_solvable_address:
 370             v = self.nodes[0].validateaddress(i)
 371             if (v['isscript']):
 372                 # Multisig without private is not seen after addmultisigaddress, but seen after importaddress
 373                 [bare, p2sh, p2wsh, p2sh_p2wsh] = self.p2sh_address_to_script(v)
 374                 solvable_after_importaddress.extend([bare, p2sh, p2wsh, p2sh_p2wsh])
 375             else:
 376                 [p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh] = self.p2pkh_address_to_script(v)
 377                 # normal P2PKH and P2PK with compressed keys should always be seen
 378                 solvable_anytime.extend([p2pkh, p2pk])
 379                 # P2SH_P2PK, P2SH_P2PKH, and witness with compressed keys are seen after direct importaddress
 380                 solvable_after_importaddress.extend([p2wpkh, p2sh_p2wpkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh])
 381
 382         for i in uncompressed_solvable_address:
 383             v = self.nodes[0].validateaddress(i)
 384             if (v['isscript']):
 385                 [bare, p2sh, p2wsh, p2sh_p2wsh] = self.p2sh_address_to_script(v)
 386                 # Base uncompressed multisig without private is not seen after addmultisigaddress, but seen after importaddress
 387                 solvable_after_importaddress.extend([bare, p2sh])
 388                 # P2WSH and P2SH(P2WSH) multisig with uncompressed keys are never seen
 389                 unseen_anytime.extend([p2wsh, p2sh_p2wsh])
 390             else:
 391                 [p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh] = self.p2pkh_address_to_script(v)
 392                 # normal P2PKH and P2PK with uncompressed keys should always be seen
 393                 solvable_anytime.extend([p2pkh, p2pk])
 394                 # P2SH_P2PK, P2SH_P2PKH with uncompressed keys are seen after direct importaddress
 395                 solvable_after_importaddress.extend([p2sh_p2pk, p2sh_p2pkh])
 396                 # witness with uncompressed keys are never seen
 397                 unseen_anytime.extend([p2wpkh, p2sh_p2wpkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh])
 398
 399         op1 = CScript([OP_1])
 400         op0 = CScript([OP_0])
 401         # 2N7MGY19ti4KDMSzRfPAssP6Pxyuxoi6jLe is the P2SH(P2PKH) version of mjoE3sSrb8ByYEvgnC3Aox86u1CHnfJA4V
 402         unsolvable_address = ["mjoE3sSrb8ByYEvgnC3Aox86u1CHnfJA4V", "2N7MGY19ti4KDMSzRfPAssP6Pxyuxoi6jLe", script_to_p2sh(op1), script_to_p2sh(op0)]
 403         unsolvable_address_key = hex_str_to_bytes("02341AEC7587A51CDE5279E0630A531AEA2615A9F80B17E8D9376327BAEAA59E3D")
 404         unsolvablep2pkh = CScript([OP_DUP, OP_HASH160, hash160(unsolvable_address_key), OP_EQUALVERIFY, OP_CHECKSIG])
 405         unsolvablep2wshp2pkh = CScript([OP_0, sha256(unsolvablep2pkh)])
 406         p2shop0 = CScript([OP_HASH160, hash160(op0), OP_EQUAL])
 407         p2wshop1 = CScript([OP_0, sha256(op1)])
 408         unsolvable_after_importaddress.append(unsolvablep2pkh)
 409         unsolvable_after_importaddress.append(unsolvablep2wshp2pkh)
 410         unsolvable_after_importaddress.append(op1) # OP_1 will be imported as script
 411         unsolvable_after_importaddress.append(p2wshop1)
 412         unseen_anytime.append(op0) # OP_0 will be imported as P2SH address with no script provided
 413         unsolvable_after_importaddress.append(p2shop0)
 414
 415         spendable_txid = []
 416         solvable_txid = []
 417         spendable_txid.append(self.mine_and_test_listunspent(spendable_anytime, 2))
 418         solvable_txid.append(self.mine_and_test_listunspent(solvable_anytime, 1))
 419         self.mine_and_test_listunspent(spendable_after_importaddress + solvable_after_importaddress + unseen_anytime + unsolvable_after_importaddress, 0)
 420
 421         importlist = []
 422         for i in compressed_spendable_address + uncompressed_spendable_address + compressed_solvable_address + uncompressed_solvable_address:
 423             v = self.nodes[0].validateaddress(i)
 424             if (v['isscript']):
 425                 bare = hex_str_to_bytes(v['hex'])
 426                 importlist.append(bytes_to_hex_str(bare))
 427                 importlist.append(bytes_to_hex_str(CScript([OP_0, sha256(bare)])))
 428             else:
 429                 pubkey = hex_str_to_bytes(v['pubkey'])
 430                 p2pk = CScript([pubkey, OP_CHECKSIG])
 431                 p2pkh = CScript([OP_DUP, OP_HASH160, hash160(pubkey), OP_EQUALVERIFY, OP_CHECKSIG])
 432                 importlist.append(bytes_to_hex_str(p2pk))
 433                 importlist.append(bytes_to_hex_str(p2pkh))
 434                 importlist.append(bytes_to_hex_str(CScript([OP_0, hash160(pubkey)])))
 435                 importlist.append(bytes_to_hex_str(CScript([OP_0, sha256(p2pk)])))
 436                 importlist.append(bytes_to_hex_str(CScript([OP_0, sha256(p2pkh)])))
 437
 438         importlist.append(bytes_to_hex_str(unsolvablep2pkh))
 439         importlist.append(bytes_to_hex_str(unsolvablep2wshp2pkh))
 440         importlist.append(bytes_to_hex_str(op1))
 441         importlist.append(bytes_to_hex_str(p2wshop1))
 442
 443         for i in importlist:
 444             # import all generated addresses. The wallet already has the private keys for some of these, so catch JSON RPC
 445             # exceptions and continue.
 446             try:
 447                 self.nodes[0].importaddress(i,"",False,True)
 448             except JSONRPCException as exp:
 449                 assert_equal(exp.error["message"], "The wallet already contains the private key for this address or script")
 450                 assert_equal(exp.error["code"], -4)
 451
 452         self.nodes[0].importaddress(script_to_p2sh(op0)) # import OP_0 as address only
 453         self.nodes[0].importaddress(multisig_without_privkey_address) # Test multisig_without_privkey
 454
 455         spendable_txid.append(self.mine_and_test_listunspent(spendable_anytime + spendable_after_importaddress, 2))
 456         solvable_txid.append(self.mine_and_test_listunspent(solvable_anytime + solvable_after_importaddress, 1))
 457         self.mine_and_test_listunspent(unsolvable_after_importaddress, 1)
 458         self.mine_and_test_listunspent(unseen_anytime, 0)
 459
 460         # addwitnessaddress should refuse to return a witness address if an uncompressed key is used
 461         # note that no witness address should be returned by unsolvable addresses
 462         for i in uncompressed_spendable_address + uncompressed_solvable_address + unknown_address + unsolvable_address:
 463             assert_raises_jsonrpc(-4, "Public key or redeemscript not known to wallet, or the key is uncompressed", self.nodes[0].addwitnessaddress, i)
 464
 465         # addwitnessaddress should return a witness addresses even if keys are not in the wallet
 466         self.nodes[0].addwitnessaddress(multisig_without_privkey_address)
 467
 468         for i in compressed_spendable_address + compressed_solvable_address:
 469             witaddress = self.nodes[0].addwitnessaddress(i)
 470             # addwitnessaddress should return the same address if it is a known P2SH-witness address
 471             assert_equal(witaddress, self.nodes[0].addwitnessaddress(witaddress))
 472
 473         spendable_txid.append(self.mine_and_test_listunspent(spendable_anytime + spendable_after_importaddress, 2))
 474         solvable_txid.append(self.mine_and_test_listunspent(solvable_anytime + solvable_after_importaddress, 1))
 475         self.mine_and_test_listunspent(unsolvable_after_importaddress, 1)
 476         self.mine_and_test_listunspent(unseen_anytime, 0)
 477
 478         # Repeat some tests. This time we don't add witness scripts with importaddress
 479         # Import a compressed key and an uncompressed key, generate some multisig addresses
 480         self.nodes[0].importprivkey("927pw6RW8ZekycnXqBQ2JS5nPyo1yRfGNN8oq74HeddWSpafDJH")
 481         uncompressed_spendable_address = ["mguN2vNSCEUh6rJaXoAVwY3YZwZvEmf5xi"]
 482         self.nodes[0].importprivkey("cMcrXaaUC48ZKpcyydfFo8PxHAjpsYLhdsp6nmtB3E2ER9UUHWnw")
 483         compressed_spendable_address = ["n1UNmpmbVUJ9ytXYXiurmGPQ3TRrXqPWKL"]
 484
 485         self.nodes[0].importpubkey(pubkeys[5])
 486         compressed_solvable_address = [key_to_p2pkh(pubkeys[5])]
 487         self.nodes[0].importpubkey(pubkeys[6])
 488         uncompressed_solvable_address = [key_to_p2pkh(pubkeys[6])]
 489
 490         spendable_after_addwitnessaddress = []      # These outputs should be seen after importaddress
 491         solvable_after_addwitnessaddress=[]         # These outputs should be seen after importaddress but not spendable
 492         unseen_anytime = []                         # These outputs should never be seen
 493
 494         uncompressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [uncompressed_spendable_address[0], compressed_spendable_address[0]]))
 495         uncompressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [uncompressed_spendable_address[0], uncompressed_spendable_address[0]]))
 496         compressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_spendable_address[0], compressed_spendable_address[0]]))
 497         uncompressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_solvable_address[0], uncompressed_solvable_address[0]]))
 498         compressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_spendable_address[0], compressed_solvable_address[0]]))
 499
 500         premature_witaddress = []
 501
 502         for i in compressed_spendable_address:
 503             v = self.nodes[0].validateaddress(i)
 504             if (v['isscript']):
 505                 [bare, p2sh, p2wsh, p2sh_p2wsh] = self.p2sh_address_to_script(v)
 506                 # P2WSH and P2SH(P2WSH) multisig with compressed keys are spendable after addwitnessaddress
 507                 spendable_after_addwitnessaddress.extend([p2wsh, p2sh_p2wsh])
 508                 premature_witaddress.append(script_to_p2sh(p2wsh))
 509             else:
 510                 [p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh] = self.p2pkh_address_to_script(v)
 511                 # P2WPKH, P2SH_P2WPKH are spendable after addwitnessaddress
 512                 spendable_after_addwitnessaddress.extend([p2wpkh, p2sh_p2wpkh])
 513                 premature_witaddress.append(script_to_p2sh(p2wpkh))
 514
 515         for i in uncompressed_spendable_address + uncompressed_solvable_address:
 516             v = self.nodes[0].validateaddress(i)
 517             if (v['isscript']):
 518                 [bare, p2sh, p2wsh, p2sh_p2wsh] = self.p2sh_address_to_script(v)
 519                 # P2WSH and P2SH(P2WSH) multisig with uncompressed keys are never seen
 520                 unseen_anytime.extend([p2wsh, p2sh_p2wsh])
 521             else:
 522                 [p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh] = self.p2pkh_address_to_script(v)
 523                 # P2WPKH, P2SH_P2WPKH with uncompressed keys are never seen
 524                 unseen_anytime.extend([p2wpkh, p2sh_p2wpkh])
 525
 526         for i in compressed_solvable_address:
 527             v = self.nodes[0].validateaddress(i)
 528             if (v['isscript']):
 529                 # P2WSH multisig without private key are seen after addwitnessaddress
 530                 [bare, p2sh, p2wsh, p2sh_p2wsh] = self.p2sh_address_to_script(v)
 531                 solvable_after_addwitnessaddress.extend([p2wsh, p2sh_p2wsh])
 532                 premature_witaddress.append(script_to_p2sh(p2wsh))
 533             else:
 534                 [p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh] = self.p2pkh_address_to_script(v)
 535                 # P2SH_P2PK, P2SH_P2PKH with compressed keys are seen after addwitnessaddress
 536                 solvable_after_addwitnessaddress.extend([p2wpkh, p2sh_p2wpkh])
 537                 premature_witaddress.append(script_to_p2sh(p2wpkh))
 538
 539         self.mine_and_test_listunspent(spendable_after_addwitnessaddress + solvable_after_addwitnessaddress + unseen_anytime, 0)
 540
 541         # addwitnessaddress should refuse to return a witness address if an uncompressed key is used
 542         # note that a multisig address returned by addmultisigaddress is not solvable until it is added with importaddress
 543         # premature_witaddress are not accepted until the script is added with addwitnessaddress first
 544         for i in uncompressed_spendable_address + uncompressed_solvable_address + premature_witaddress:
 545             # This will raise an exception
 546             assert_raises_jsonrpc(-4, "Public key or redeemscript not known to wallet, or the key is uncompressed", self.nodes[0].addwitnessaddress, i)
 547
 548         # after importaddress it should pass addwitnessaddress
 549         v = self.nodes[0].validateaddress(compressed_solvable_address[1])
 550         self.nodes[0].importaddress(v['hex'],"",False,True)
 551         for i in compressed_spendable_address + compressed_solvable_address + premature_witaddress:
 552             witaddress = self.nodes[0].addwitnessaddress(i)
 553             assert_equal(witaddress, self.nodes[0].addwitnessaddress(witaddress))
 554
 555         spendable_txid.append(self.mine_and_test_listunspent(spendable_after_addwitnessaddress, 2))
 556         solvable_txid.append(self.mine_and_test_listunspent(solvable_after_addwitnessaddress, 1))
 557         self.mine_and_test_listunspent(unseen_anytime, 0)
 558
 559         # Check that spendable outputs are really spendable
 560         self.create_and_mine_tx_from_txids(spendable_txid)
 561
 562         # import all the private keys so solvable addresses become spendable
 563         self.nodes[0].importprivkey("cPiM8Ub4heR9NBYmgVzJQiUH1if44GSBGiqaeJySuL2BKxubvgwb")
 564         self.nodes[0].importprivkey("cPpAdHaD6VoYbW78kveN2bsvb45Q7G5PhaPApVUGwvF8VQ9brD97")
 565         self.nodes[0].importprivkey("91zqCU5B9sdWxzMt1ca3VzbtVm2YM6Hi5Rxn4UDtxEaN9C9nzXV")
 566         self.nodes[0].importprivkey("cPQFjcVRpAUBG8BA9hzr2yEzHwKoMgLkJZBBtK9vJnvGJgMjzTbd")
 567         self.nodes[0].importprivkey("cQGtcm34xiLjB1v7bkRa4V3aAc9tS2UTuBZ1UnZGeSeNy627fN66")
 568         self.nodes[0].importprivkey("cTW5mR5M45vHxXkeChZdtSPozrFwFgmEvTNnanCW6wrqwaCZ1X7K")
 569         self.create_and_mine_tx_from_txids(solvable_txid)
 570
 571     def mine_and_test_listunspent(self, script_list, ismine):
 572         utxo = find_unspent(self.nodes[0], 50)
 573         tx = CTransaction()
 574         tx.vin.append(CTxIn(COutPoint(int('0x'+utxo['txid'],0), utxo['vout'])))
 575         for i in script_list:
 576             tx.vout.append(CTxOut(10000000, i))
 577         tx.rehash()
 578         signresults = self.nodes[0].signrawtransaction(bytes_to_hex_str(tx.serialize_without_witness()))['hex']
 579         txid = self.nodes[0].sendrawtransaction(signresults, True)
 580         self.nodes[0].generate(1)
 581         sync_blocks(self.nodes)
 582         watchcount = 0
 583         spendcount = 0
 584         for i in self.nodes[0].listunspent():
 585             if (i['txid'] == txid):
 586                 watchcount += 1
 587                 if (i['spendable'] == True):
 588                     spendcount += 1
 589         if (ismine == 2):
 590             assert_equal(spendcount, len(script_list))
 591         elif (ismine == 1):
 592             assert_equal(watchcount, len(script_list))
 593             assert_equal(spendcount, 0)
 594         else:
 595             assert_equal(watchcount, 0)
 596         return txid
 597
 598     def p2sh_address_to_script(self,v):
 599         bare = CScript(hex_str_to_bytes(v['hex']))
 600         p2sh = CScript(hex_str_to_bytes(v['scriptPubKey']))
 601         p2wsh = CScript([OP_0, sha256(bare)])
 602         p2sh_p2wsh = CScript([OP_HASH160, hash160(p2wsh), OP_EQUAL])
 603         return([bare, p2sh, p2wsh, p2sh_p2wsh])
 604
 605     def p2pkh_address_to_script(self,v):
 606         pubkey = hex_str_to_bytes(v['pubkey'])
 607         p2wpkh = CScript([OP_0, hash160(pubkey)])
 608         p2sh_p2wpkh = CScript([OP_HASH160, hash160(p2wpkh), OP_EQUAL])
 609         p2pk = CScript([pubkey, OP_CHECKSIG])
 610         p2pkh = CScript(hex_str_to_bytes(v['scriptPubKey']))
 611         p2sh_p2pk = CScript([OP_HASH160, hash160(p2pk), OP_EQUAL])
 612         p2sh_p2pkh = CScript([OP_HASH160, hash160(p2pkh), OP_EQUAL])
 613         p2wsh_p2pk = CScript([OP_0, sha256(p2pk)])
 614         p2wsh_p2pkh = CScript([OP_0, sha256(p2pkh)])
 615         p2sh_p2wsh_p2pk = CScript([OP_HASH160, hash160(p2wsh_p2pk), OP_EQUAL])
 616         p2sh_p2wsh_p2pkh = CScript([OP_HASH160, hash160(p2wsh_p2pkh), OP_EQUAL])
 617         return [p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh]
 618
 619     def create_and_mine_tx_from_txids(self, txids, success = True):
 620         tx = CTransaction()
 621         for i in txids:
 622             txtmp = CTransaction()
 623             txraw = self.nodes[0].getrawtransaction(i)
 624             f = BytesIO(hex_str_to_bytes(txraw))
 625             txtmp.deserialize(f)
 626             for j in range(len(txtmp.vout)):
 627                 tx.vin.append(CTxIn(COutPoint(int('0x'+i,0), j)))
 628         tx.vout.append(CTxOut(0, CScript()))
 629         tx.rehash()
 630         signresults = self.nodes[0].signrawtransaction(bytes_to_hex_str(tx.serialize_without_witness()))['hex']
 631         self.nodes[0].sendrawtransaction(signresults, True)
 632         self.nodes[0].generate(1)
 633         sync_blocks(self.nodes)
 634
 635
 636 if __name__ == '__main__':
 637     SegWitTest().main()