lbry-sdk/lbry/tests/unit/wallet/server/test_sqldb.py

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import unittest
import ecdsa
import hashlib
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from binascii import hexlify
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from torba.client.constants import COIN, NULL_HASH32
from lbry.schema.claim import Claim
from lbry.wallet.server.db import reader, writer
from lbry.wallet.server.coin import LBCRegTest
from lbry.wallet.server.db.trending import TRENDING_WINDOW
from lbry.wallet.server.db.canonical import FindShortestID
from lbry.wallet.server.block_processor import Timer
from lbry.wallet.transaction import Transaction, Input, Output
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def get_output(amount=COIN, pubkey_hash=NULL_HASH32):
return Transaction() \
.add_outputs([Output.pay_pubkey_hash(amount, pubkey_hash)]) \
.outputs[0]
def get_input():
return Input.spend(get_output())
def get_tx():
return Transaction().add_inputs([get_input()])
class OldWalletServerTransaction:
def __init__(self, tx):
self.tx = tx
def serialize(self):
return self.tx.raw
class TestSQLDB(unittest.TestCase):
def setUp(self):
self.first_sync = False
self.daemon_height = 1
self.coin = LBCRegTest()
db_url = 'file:test_sqldb?mode=memory&cache=shared'
self.sql = writer.SQLDB(self, db_url)
self.addCleanup(self.sql.close)
reader.initializer(db_url, 'regtest')
self.addCleanup(reader.cleanup)
self.timer = Timer('BlockProcessor')
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self.sql.open()
self._current_height = 0
self._txos = {}
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def _make_tx(self, output, txi=None):
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tx = get_tx().add_outputs([output])
if txi is not None:
tx.add_inputs([txi])
self._txos[output.ref.hash] = output
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return OldWalletServerTransaction(tx), tx.hash
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def _set_channel_key(self, channel, key):
private_key = ecdsa.SigningKey.from_string(key*32, curve=ecdsa.SECP256k1, hashfunc=hashlib.sha256)
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channel.private_key = private_key
channel.claim.channel.public_key_bytes = private_key.get_verifying_key().to_der()
channel.script.generate()
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def get_channel(self, title, amount, name='@foo', key=b'a'):
claim = Claim()
claim.channel.title = title
channel = Output.pay_claim_name_pubkey_hash(amount, name, claim, b'abc')
self._set_channel_key(channel, key)
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return self._make_tx(channel)
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def get_channel_update(self, channel, amount, key=b'a'):
self._set_channel_key(channel, key)
return self._make_tx(
Output.pay_update_claim_pubkey_hash(
amount, channel.claim_name, channel.claim_id, channel.claim, b'abc'
),
Input.spend(channel)
)
def get_stream(self, title, amount, name='foo', channel=None):
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claim = Claim()
claim.stream.title = title
result = self._make_tx(Output.pay_claim_name_pubkey_hash(amount, name, claim, b'abc'))
if channel:
result[0].tx.outputs[0].sign(channel)
result[0].tx._reset()
return result
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def get_stream_update(self, tx, amount):
claim = Transaction(tx[0].serialize()).outputs[0]
return self._make_tx(
Output.pay_update_claim_pubkey_hash(
amount, claim.claim_name, claim.claim_id, claim.claim, b'abc'
),
Input.spend(claim)
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)
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def get_abandon(self, tx):
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claim = Transaction(tx[0].serialize()).outputs[0]
return self._make_tx(
Output.pay_pubkey_hash(claim.amount, b'abc'),
Input.spend(claim)
)
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def get_support(self, tx, amount):
claim = Transaction(tx[0].serialize()).outputs[0]
return self._make_tx(
Output.pay_support_pubkey_hash(
amount, claim.claim_name, claim.claim_id, b'abc'
)
)
def get_controlling(self):
for claim in self.sql.execute("select claim.* from claimtrie natural join claim"):
txo = self._txos[claim['txo_hash']]
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controlling = txo.claim.stream.title, claim['amount'], claim['effective_amount'], claim['activation_height']
return controlling
def get_active(self):
controlling = self.get_controlling()
active = []
for claim in self.sql.execute(
f"select * from claim where activation_height <= {self._current_height}"):
txo = self._txos[claim['txo_hash']]
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if controlling and controlling[0] == txo.claim.stream.title:
continue
active.append((txo.claim.stream.title, claim['amount'], claim['effective_amount'], claim['activation_height']))
return active
def get_accepted(self):
accepted = []
for claim in self.sql.execute(
f"select * from claim where activation_height > {self._current_height}"):
txo = self._txos[claim['txo_hash']]
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accepted.append((txo.claim.stream.title, claim['amount'], claim['effective_amount'], claim['activation_height']))
return accepted
def advance(self, height, txs):
self._current_height = height
self.sql.advance_txs(height, txs, {'timestamp': 1}, self.daemon_height, self.timer)
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return [otx[0].tx.outputs[0] for otx in txs]
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def state(self, controlling=None, active=None, accepted=None):
self.assertEqual(controlling, self.get_controlling())
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self.assertEqual(active or [], self.get_active())
self.assertEqual(accepted or [], self.get_accepted())
class TestClaimtrie(TestSQLDB):
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def test_example_from_spec(self):
# https://spec.lbry.com/#claim-activation-example
advance, state = self.advance, self.state
stream = self.get_stream('Claim A', 10*COIN)
advance(13, [stream])
state(
controlling=('Claim A', 10*COIN, 10*COIN, 13),
active=[],
accepted=[]
)
advance(1001, [self.get_stream('Claim B', 20*COIN)])
state(
controlling=('Claim A', 10*COIN, 10*COIN, 13),
active=[],
accepted=[('Claim B', 20*COIN, 0, 1031)]
)
advance(1010, [self.get_support(stream, 14*COIN)])
state(
controlling=('Claim A', 10*COIN, 24*COIN, 13),
active=[],
accepted=[('Claim B', 20*COIN, 0, 1031)]
)
advance(1020, [self.get_stream('Claim C', 50*COIN)])
state(
controlling=('Claim A', 10*COIN, 24*COIN, 13),
active=[],
accepted=[
('Claim B', 20*COIN, 0, 1031),
('Claim C', 50*COIN, 0, 1051)]
)
advance(1031, [])
state(
controlling=('Claim A', 10*COIN, 24*COIN, 13),
active=[('Claim B', 20*COIN, 20*COIN, 1031)],
accepted=[('Claim C', 50*COIN, 0, 1051)]
)
advance(1040, [self.get_stream('Claim D', 300*COIN)])
state(
controlling=('Claim A', 10*COIN, 24*COIN, 13),
active=[('Claim B', 20*COIN, 20*COIN, 1031)],
accepted=[
('Claim C', 50*COIN, 0, 1051),
('Claim D', 300*COIN, 0, 1072)]
)
advance(1051, [])
state(
controlling=('Claim D', 300*COIN, 300*COIN, 1051),
active=[
('Claim A', 10*COIN, 24*COIN, 13),
('Claim B', 20*COIN, 20*COIN, 1031),
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('Claim C', 50*COIN, 50*COIN, 1051)],
accepted=[]
)
# beyond example
advance(1052, [self.get_stream_update(stream, 290*COIN)])
state(
controlling=('Claim A', 290*COIN, 304*COIN, 13),
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active=[
('Claim B', 20*COIN, 20*COIN, 1031),
('Claim C', 50*COIN, 50*COIN, 1051),
('Claim D', 300*COIN, 300*COIN, 1051),
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],
accepted=[]
)
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def test_competing_claims_subsequent_blocks_height_wins(self):
advance, state = self.advance, self.state
advance(13, [self.get_stream('Claim A', 10*COIN)])
state(
controlling=('Claim A', 10*COIN, 10*COIN, 13),
active=[],
accepted=[]
)
advance(14, [self.get_stream('Claim B', 10*COIN)])
state(
controlling=('Claim A', 10*COIN, 10*COIN, 13),
active=[('Claim B', 10*COIN, 10*COIN, 14)],
accepted=[]
)
advance(15, [self.get_stream('Claim C', 10*COIN)])
state(
controlling=('Claim A', 10*COIN, 10*COIN, 13),
active=[
('Claim B', 10*COIN, 10*COIN, 14),
('Claim C', 10*COIN, 10*COIN, 15)],
accepted=[]
)
def test_competing_claims_in_single_block_position_wins(self):
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advance, state = self.advance, self.state
stream = self.get_stream('Claim A', 10*COIN)
stream2 = self.get_stream('Claim B', 10*COIN)
advance(13, [stream, stream2])
state(
controlling=('Claim A', 10*COIN, 10*COIN, 13),
active=[('Claim B', 10*COIN, 10*COIN, 13)],
accepted=[]
)
def test_competing_claims_in_single_block_effective_amount_wins(self):
advance, state = self.advance, self.state
stream = self.get_stream('Claim A', 10*COIN)
stream2 = self.get_stream('Claim B', 11*COIN)
advance(13, [stream, stream2])
state(
controlling=('Claim B', 11*COIN, 11*COIN, 13),
active=[('Claim A', 10*COIN, 10*COIN, 13)],
accepted=[]
)
def test_winning_claim_deleted(self):
advance, state = self.advance, self.state
stream = self.get_stream('Claim A', 10*COIN)
stream2 = self.get_stream('Claim B', 11*COIN)
advance(13, [stream, stream2])
state(
controlling=('Claim B', 11*COIN, 11*COIN, 13),
active=[('Claim A', 10*COIN, 10*COIN, 13)],
accepted=[]
)
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advance(14, [self.get_abandon(stream2)])
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state(
controlling=('Claim A', 10*COIN, 10*COIN, 13),
active=[],
accepted=[]
)
def test_winning_claim_deleted_and_new_claim_becomes_winner(self):
advance, state = self.advance, self.state
stream = self.get_stream('Claim A', 10*COIN)
stream2 = self.get_stream('Claim B', 11*COIN)
advance(13, [stream, stream2])
state(
controlling=('Claim B', 11*COIN, 11*COIN, 13),
active=[('Claim A', 10*COIN, 10*COIN, 13)],
accepted=[]
)
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advance(15, [self.get_abandon(stream2), self.get_stream('Claim C', 12*COIN)])
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state(
controlling=('Claim C', 12*COIN, 12*COIN, 15),
active=[('Claim A', 10*COIN, 10*COIN, 13)],
accepted=[]
)
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def test_winning_claim_expires_and_another_takes_over(self):
advance, state = self.advance, self.state
advance(10, [self.get_stream('Claim A', 11*COIN)])
advance(20, [self.get_stream('Claim B', 10*COIN)])
state(
controlling=('Claim A', 11*COIN, 11*COIN, 10),
active=[('Claim B', 10*COIN, 10*COIN, 20)],
accepted=[]
)
advance(262984, [])
state(
controlling=('Claim B', 10*COIN, 10*COIN, 20),
active=[],
accepted=[]
)
advance(262994, [])
state(
controlling=None,
active=[],
accepted=[]
)
@staticmethod
def _get_x_with_claim_id_prefix(getter, prefix, cached_iteration=None, **kwargs):
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iterations = cached_iteration+1 if cached_iteration else 100
for i in range(cached_iteration or 1, iterations):
stream = getter(f'claim #{i}', COIN, **kwargs)
if stream[0].tx.outputs[0].claim_id.startswith(prefix):
cached_iteration is None and print(f'Found "{prefix}" in {i} iterations.')
return stream
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if cached_iteration:
raise ValueError(f'Failed to find "{prefix}" at cached iteration, run with None to find iteration.')
raise ValueError(f'Failed to find "{prefix}" in {iterations} iterations, try different values.')
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def get_channel_with_claim_id_prefix(self, prefix, cached_iteration=None, **kwargs):
return self._get_x_with_claim_id_prefix(self.get_channel, prefix, cached_iteration, **kwargs)
def get_stream_with_claim_id_prefix(self, prefix, cached_iteration=None, **kwargs):
return self._get_x_with_claim_id_prefix(self.get_stream, prefix, cached_iteration, **kwargs)
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def test_canonical_url_and_channel_validation(self):
advance = self.advance
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tx_chan_a = self.get_channel_with_claim_id_prefix('a', 1, key=b'c')
tx_chan_ab = self.get_channel_with_claim_id_prefix('ab', 72, key=b'c')
txo_chan_a = tx_chan_a[0].tx.outputs[0]
advance(1, [tx_chan_a])
advance(2, [tx_chan_ab])
r_ab, r_a = reader._search(order_by=['creation_height'], limit=2)
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self.assertEqual("@foo#a", r_a['short_url'])
self.assertEqual("@foo#ab", r_ab['short_url'])
self.assertIsNone(r_a['canonical_url'])
self.assertIsNone(r_ab['canonical_url'])
self.assertEqual(0, r_a['claims_in_channel'])
self.assertEqual(0, r_ab['claims_in_channel'])
tx_a = self.get_stream_with_claim_id_prefix('a', 2)
tx_ab = self.get_stream_with_claim_id_prefix('ab', 42)
tx_abc = self.get_stream_with_claim_id_prefix('abc', 65)
advance(3, [tx_a])
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advance(4, [tx_ab, tx_abc])
r_abc, r_ab, r_a = reader._search(order_by=['creation_height', 'tx_position'], limit=3)
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self.assertEqual("foo#a", r_a['short_url'])
self.assertEqual("foo#ab", r_ab['short_url'])
self.assertEqual("foo#abc", r_abc['short_url'])
self.assertIsNone(r_a['canonical_url'])
self.assertIsNone(r_ab['canonical_url'])
self.assertIsNone(r_abc['canonical_url'])
tx_a2 = self.get_stream_with_claim_id_prefix('a', 7, channel=txo_chan_a)
tx_ab2 = self.get_stream_with_claim_id_prefix('ab', 23, channel=txo_chan_a)
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a2_claim_id = tx_a2[0].tx.outputs[0].claim_id
ab2_claim_id = tx_ab2[0].tx.outputs[0].claim_id
advance(6, [tx_a2])
advance(7, [tx_ab2])
r_ab2, r_a2 = reader._search(order_by=['creation_height'], limit=2)
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self.assertEqual(f"foo#{a2_claim_id[:2]}", r_a2['short_url'])
self.assertEqual(f"foo#{ab2_claim_id[:4]}", r_ab2['short_url'])
self.assertEqual("@foo#a/foo#a", r_a2['canonical_url'])
self.assertEqual("@foo#a/foo#ab", r_ab2['canonical_url'])
self.assertEqual(2, reader._search(claim_id=txo_chan_a.claim_id, limit=1)[0]['claims_in_channel'])
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# change channel public key, invaliding stream claim signatures
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advance(8, [self.get_channel_update(txo_chan_a, COIN, key=b'a')])
r_ab2, r_a2 = reader._search(order_by=['creation_height'], limit=2)
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self.assertEqual(f"foo#{a2_claim_id[:2]}", r_a2['short_url'])
self.assertEqual(f"foo#{ab2_claim_id[:4]}", r_ab2['short_url'])
self.assertIsNone(r_a2['canonical_url'])
self.assertIsNone(r_ab2['canonical_url'])
self.assertEqual(0, reader._search(claim_id=txo_chan_a.claim_id, limit=1)[0]['claims_in_channel'])
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# reinstate previous channel public key (previous stream claim signatures become valid again)
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channel_update = self.get_channel_update(txo_chan_a, COIN, key=b'c')
advance(9, [channel_update])
r_ab2, r_a2 = reader._search(order_by=['creation_height'], limit=2)
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self.assertEqual(f"foo#{a2_claim_id[:2]}", r_a2['short_url'])
self.assertEqual(f"foo#{ab2_claim_id[:4]}", r_ab2['short_url'])
self.assertEqual("@foo#a/foo#a", r_a2['canonical_url'])
self.assertEqual("@foo#a/foo#ab", r_ab2['canonical_url'])
self.assertEqual(2, reader._search(claim_id=txo_chan_a.claim_id, limit=1)[0]['claims_in_channel'])
# claim abandon updates claims_in_channel
advance(10, [self.get_abandon(tx_ab2)])
self.assertEqual(1, reader._search(claim_id=txo_chan_a.claim_id, limit=1)[0]['claims_in_channel'])
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# delete channel, invaliding stream claim signatures
advance(11, [self.get_abandon(channel_update)])
r_a2, = reader._search(order_by=['creation_height'], limit=1)
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self.assertEqual(f"foo#{a2_claim_id[:2]}", r_a2['short_url'])
self.assertIsNone(r_a2['canonical_url'])
def test_canonical_find_shortest_id(self):
new_hash = 'abcdef0123456789beef'
other0 = '1bcdef0123456789beef'
other1 = 'ab1def0123456789beef'
other2 = 'abc1ef0123456789beef'
other3 = 'abcdef0123456789bee1'
f = FindShortestID()
f.step(other0, new_hash)
self.assertEqual('#a', f.finalize())
f.step(other1, new_hash)
self.assertEqual('#abc', f.finalize())
f.step(other2, new_hash)
self.assertEqual('#abcd', f.finalize())
f.step(other3, new_hash)
self.assertEqual('#abcdef0123456789beef', f.finalize())
class TestTrending(TestSQLDB):
def test_trending(self):
advance, state = self.advance, self.state
no_trend = self.get_stream('Claim A', COIN)
downwards = self.get_stream('Claim B', COIN)
up_small = self.get_stream('Claim C', COIN)
up_medium = self.get_stream('Claim D', COIN)
up_biggly = self.get_stream('Claim E', COIN)
claims = advance(1, [up_biggly, up_medium, up_small, no_trend, downwards])
for window in range(1, 8):
advance(TRENDING_WINDOW * window, [
self.get_support(downwards, (20-window)*COIN),
self.get_support(up_small, int(20+(window/10)*COIN)),
self.get_support(up_medium, (20+(window*(2 if window == 7 else 1)))*COIN),
self.get_support(up_biggly, (20+(window*(3 if window == 7 else 1)))*COIN),
])
results = reader._search(order_by=['trending_local'])
self.assertEqual([c.claim_id for c in claims], [hexlify(c['claim_hash'][::-1]).decode() for c in results])
self.assertEqual([10, 6, 2, 0, -2], [int(c['trending_local']) for c in results])
self.assertEqual([53, 38, -32, 0, -6], [int(c['trending_global']) for c in results])
self.assertEqual([4, 4, 2, 0, 1], [int(c['trending_group']) for c in results])
self.assertEqual([53, 38, 2, 0, -6], [int(c['trending_mixed']) for c in results])