-
Notifications
You must be signed in to change notification settings - Fork 16
Expand file tree
/
Copy pathqtum_duplicate_stake.py
More file actions
182 lines (147 loc) · 7.23 KB
/
Copy pathqtum_duplicate_stake.py
File metadata and controls
182 lines (147 loc) · 7.23 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
#!/usr/bin/env python3
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import *
from test_framework.script import *
from test_framework.mininode import *
from test_framework.messages import *
from test_framework.metrix import *
import time
class QtumDuplicateStakeTest(BitcoinTestFramework):
def set_test_params(self):
self.setup_clean_chain = True
self.num_nodes = 2
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
def start_p2p_connection(self):
self.p2p_node = self.node.add_p2p_connection(P2PInterface())
self.p2p_alt_node = self.nodes[1].add_p2p_connection(P2PInterface())
def _remove_from_staking_prevouts(self, staking_prevouts, remove_prevout):
for j in range(len(staking_prevouts)):
prevout = staking_prevouts[j]
if prevout[0].serialize() == remove_prevout.serialize():
staking_prevouts.pop(j)
break
def verify_duplicate_stakes_are_accepted_test(self):
tip = self.node.getblock(self.node.getbestblockhash())
t = (tip['time']+0x10) & 0xfffffff0
# Create one "normal" block
block, block_sig_key = create_unsigned_pos_block(self.node, self.staking_prevouts, nTime=t)
block.sign_block(block_sig_key)
block.rehash()
# Create a slightly different block using the same staking utxo (only difference is the nonce)
alt_block = CBlock(block)
alt_block.vtx = block.vtx[:]
alt_block.nNonce = 1
alt_block.rehash()
alt_block.sign_block(block_sig_key)
alt_block.rehash()
# Send <block> to node
self.p2p_node.send_message(msg_block(block))
# Send <alt_block> to alt_node
self.p2p_alt_node.send_message(msg_block(alt_block))
time.sleep(2)
assert_equal(self.node.getbestblockhash(), block.hash)
assert_equal(self.alt_node.getbestblockhash(), alt_block.hash)
# Build a longer chain on alt_node
self.alt_node.generate(1)
self.sync_all()
self._remove_from_staking_prevouts(self.staking_prevouts, block.prevoutStake)
def verify_spent_stake_is_accepted_in_fork_test(self):
tip = self.node.getblock(self.node.getbestblockhash())
t = (tip['time']+0x10) & 0xfffffff0
# Create one "normal" block
block, block_sig_key = create_unsigned_pos_block(self.node, self.staking_prevouts, nTime=t)
block.sign_block(block_sig_key)
block.rehash()
# Create a different block that spends the prevoutStake from <block>
alt_block, alt_block_sig_key = create_unsigned_pos_block(self.alt_node, self.alt_staking_prevouts, nTime=t)
tx = CTransaction()
tx.vin = [CTxIn(block.prevoutStake)]
tx.vout = [CTxOut(int(COIN), scriptPubKey=CScript([OP_TRUE]))]
tx = rpc_sign_transaction(self.node, tx)
alt_block.vtx.append(tx)
alt_block.hashMerkleRoot = alt_block.calc_merkle_root()
alt_block.rehash()
alt_block.sign_block(alt_block_sig_key)
alt_block.rehash()
# Send <alt_block> to alt_node
self.p2p_alt_node.send_message(msg_block(alt_block))
# Send <block> to node
self.p2p_node.send_message(msg_block(block))
time.sleep(2)
assert_equal(self.node.getbestblockhash(), block.hash)
assert_equal(self.alt_node.getbestblockhash(), alt_block.hash)
# Build a longer chain on alt_node
self.alt_node.generate(1)
self.sync_all()
self._remove_from_staking_prevouts(self.staking_prevouts, block.prevoutStake)
self._remove_from_staking_prevouts(self.alt_staking_prevouts, alt_block.prevoutStake)
def verify_spent_stake_in_old_block_is_rejected_test(self):
tip = self.node.getblock(self.node.getbestblockhash())
t = (tip['time']+0x10) & 0xfffffff0
# Create one "normal" block
block, block_sig_key = create_unsigned_pos_block(self.node, self.staking_prevouts, nTime=t)
block.sign_block(block_sig_key)
block.rehash()
# Create a different block that spends the prevoutStake from <block>
alt_block, alt_block_sig_key = create_unsigned_pos_block(self.alt_node, self.alt_staking_prevouts, nTime=t)
tx = CTransaction()
tx.vin = [CTxIn(block.prevoutStake)]
tx.vout = [CTxOut(int(COIN), scriptPubKey=CScript([OP_TRUE]))]
tx = rpc_sign_transaction(self.node, tx)
alt_block.vtx.append(tx)
alt_block.hashMerkleRoot = alt_block.calc_merkle_root()
alt_block.rehash()
alt_block.sign_block(alt_block_sig_key)
alt_block.rehash()
# Send <alt_block> to alt_node
self.p2p_alt_node.send_message(msg_block(alt_block))
time.sleep(2)
self.alt_node.generate(500)
time.sleep(2)
# Send <block> to node
self.p2p_node.send_message(msg_block(block))
time.sleep(2)
assert_raises_rpc_error(-5, "Block not found", self.node.getblockheader, block.hash)
time.sleep(2)
self.sync_all()
self._remove_from_staking_prevouts(self.staking_prevouts, alt_block.prevoutStake)
self._remove_from_staking_prevouts(self.alt_staking_prevouts, alt_block.prevoutStake)
def run_test(self):
privkey = byte_to_base58(hash256(struct.pack('<I', 0)), 239)
for n in self.nodes:
n.importprivkey(privkey)
self.node = self.nodes[0]
self.alt_node = self.nodes[1]
self.node.setmocktime(int(time.time() - 100*24*60*60))
self.alt_node.setmocktime(int(time.time() - 100*24*60*60))
self.alt_node.generatetoaddress(50, "qSrM9K6FMhZ29Vkp8Rdk8Jp66bbfpjFETq")
self.sync_all()
self.node.generatetoaddress(500, "qSrM9K6FMhZ29Vkp8Rdk8Jp66bbfpjFETq")
self.sync_all()
self.alt_staking_prevouts = collect_prevouts(self.alt_node)
self.node.generatetoaddress(50, "qSrM9K6FMhZ29Vkp8Rdk8Jp66bbfpjFETq")
self.sync_all()
self.staking_prevouts = collect_prevouts(self.node)
print(len(self.staking_prevouts), len(self.alt_staking_prevouts))
for prevout in self.alt_staking_prevouts:
self._remove_from_staking_prevouts(self.staking_prevouts, prevout[0])
print(len(self.staking_prevouts), len(self.alt_staking_prevouts))
self.node.setmocktime(0)
self.alt_node.setmocktime(0)
self.start_p2p_connection()
time.sleep(0x10)
print(len(self.staking_prevouts), len(self.alt_staking_prevouts))
self.verify_duplicate_stakes_are_accepted_test()
assert_equal(self.node.getblockcount(), self.alt_node.getblockcount())
assert_equal(self.node.getbestblockhash(), self.alt_node.getbestblockhash())
time.sleep(0x10)
print(len(self.staking_prevouts), len(self.alt_staking_prevouts))
self.verify_spent_stake_is_accepted_in_fork_test()
assert_equal(self.node.getblockcount(), self.alt_node.getblockcount())
assert_equal(self.node.getbestblockhash(), self.alt_node.getbestblockhash())
time.sleep(0x10)
print(len(self.staking_prevouts), len(self.alt_staking_prevouts))
self.verify_spent_stake_in_old_block_is_rejected_test()
if __name__ == '__main__':
QtumDuplicateStakeTest().main()