import sys import os import unittest import sqlite3 import tempfile import asyncio from concurrent.futures.thread import ThreadPoolExecutor from lbry.wallet import ( Wallet, Account, Ledger, Database, Headers, Transaction, Input ) from lbry.wallet.constants import COIN from lbry.wallet.database import query, interpolate, constraints_to_sql, AIOSQLite from lbry.crypto.hash import sha256 from lbry.testcase import AsyncioTestCase from tests.unit.wallet.test_transaction import get_output, NULL_HASH class TestAIOSQLite(AsyncioTestCase): async def asyncSetUp(self): self.db = await AIOSQLite.connect(':memory:') await self.db.executescript(""" pragma foreign_keys=on; create table parent (id integer primary key, name); create table child (id integer primary key, parent_id references parent); """) await self.db.execute("insert into parent values (1, 'test')") await self.db.execute("insert into child values (2, 1)") @staticmethod def delete_item(transaction): transaction.execute('delete from parent where id=1') async def test_foreign_keys_integrity_error(self): self.assertListEqual([(1, 'test')], await self.db.execute_fetchall("select * from parent")) with self.assertRaises(sqlite3.IntegrityError): await self.db.run(self.delete_item) self.assertListEqual([(1, 'test')], await self.db.execute_fetchall("select * from parent")) await self.db.executescript("pragma foreign_keys=off;") await self.db.run(self.delete_item) self.assertListEqual([], await self.db.execute_fetchall("select * from parent")) async def test_run_without_foreign_keys(self): self.assertListEqual([(1, 'test')], await self.db.execute_fetchall("select * from parent")) await self.db.run_with_foreign_keys_disabled(self.delete_item) self.assertListEqual([], await self.db.execute_fetchall("select * from parent")) async def test_integrity_error_when_foreign_keys_disabled_and_skipped(self): await self.db.executescript("pragma foreign_keys=off;") self.assertListEqual([(1, 'test')], await self.db.execute_fetchall("select * from parent")) with self.assertRaises(sqlite3.IntegrityError): await self.db.run_with_foreign_keys_disabled(self.delete_item) self.assertListEqual([(1, 'test')], await self.db.execute_fetchall("select * from parent")) class TestQueryBuilder(unittest.TestCase): def test_dot(self): self.assertTupleEqual( constraints_to_sql({'txo.position': 18}), ('txo.position = :txo_position0', {'txo_position0': 18}) ) self.assertTupleEqual( constraints_to_sql({'txo.position#6': 18}), ('txo.position = :txo_position6', {'txo_position6': 18}) ) def test_any(self): self.assertTupleEqual( constraints_to_sql({ 'ages__any': { 'txo.age__gt': 18, 'txo.age__lt': 38 } }), ('(txo.age > :ages__any0_txo_age__gt0 OR txo.age < :ages__any0_txo_age__lt0)', { 'ages__any0_txo_age__gt0': 18, 'ages__any0_txo_age__lt0': 38 }) ) def test_in(self): self.assertTupleEqual( constraints_to_sql({'txo.age__in#2': [18, 38]}), ('txo.age IN (:txo_age__in2_0, :txo_age__in2_1)', { 'txo_age__in2_0': 18, 'txo_age__in2_1': 38 }) ) self.assertTupleEqual( constraints_to_sql({'txo.name__in': ('abc123', 'def456')}), ('txo.name IN (:txo_name__in0_0, :txo_name__in0_1)', { 'txo_name__in0_0': 'abc123', 'txo_name__in0_1': 'def456' }) ) self.assertTupleEqual( constraints_to_sql({'txo.name__in': {'abc123'}}), ('txo.name = :txo_name__in0', { 'txo_name__in0': 'abc123', }) ) self.assertTupleEqual( constraints_to_sql({'txo.age__in': 'SELECT age from ages_table'}), ('txo.age IN (SELECT age from ages_table)', {}) ) def test_not_in(self): self.assertTupleEqual( constraints_to_sql({'txo.age__not_in': [18, 38]}), ('txo.age NOT IN (:txo_age__not_in0_0, :txo_age__not_in0_1)', { 'txo_age__not_in0_0': 18, 'txo_age__not_in0_1': 38 }) ) self.assertTupleEqual( constraints_to_sql({'txo.name__not_in': ('abc123', 'def456')}), ('txo.name NOT IN (:txo_name__not_in0_0, :txo_name__not_in0_1)', { 'txo_name__not_in0_0': 'abc123', 'txo_name__not_in0_1': 'def456' }) ) self.assertTupleEqual( constraints_to_sql({'txo.name__not_in': ('abc123',)}), ('txo.name != :txo_name__not_in0', { 'txo_name__not_in0': 'abc123', }) ) self.assertTupleEqual( constraints_to_sql({'txo.age__not_in': 'SELECT age from ages_table'}), ('txo.age NOT IN (SELECT age from ages_table)', {}) ) def test_in_invalid(self): with self.assertRaisesRegex(ValueError, 'list, set or string'): constraints_to_sql({'ages__in': 9}) def test_query(self): self.assertTupleEqual( query("select * from foo"), ("select * from foo", {}) ) self.assertTupleEqual( query( "select * from foo", a__not='b', b__in='select * from blah where c=:$c', d__any={'one__like': 'o', 'two': 2}, limit=10, order_by='b', **{'$c': 3}), ( "select * from foo WHERE a != :a__not0 AND " "b IN (select * from blah where c=:$c) AND " "(one LIKE :d__any0_one__like0 OR two = :d__any0_two0) ORDER BY b LIMIT 10", {'a__not0': 'b', 'd__any0_one__like0': 'o', 'd__any0_two0': 2, '$c': 3} ) ) def test_query_order_by(self): self.assertTupleEqual( query("select * from foo", order_by='foo'), ("select * from foo ORDER BY foo", {}) ) self.assertTupleEqual( query("select * from foo", order_by=['foo', 'bar']), ("select * from foo ORDER BY foo, bar", {}) ) with self.assertRaisesRegex(ValueError, 'order_by must be string or list'): query("select * from foo", order_by={'foo': 'bar'}) def test_query_limit_offset(self): self.assertTupleEqual( query("select * from foo", limit=10), ("select * from foo LIMIT 10", {}) ) self.assertTupleEqual( query("select * from foo", offset=10), ("select * from foo OFFSET 10", {}) ) self.assertTupleEqual( query("select * from foo", limit=20, offset=10), ("select * from foo LIMIT 20 OFFSET 10", {}) ) def test_query_interpolation(self): self.maxDiff = None # tests that interpolation replaces longer keys first self.assertEqual( interpolate(*query( "select * from foo", a__not='b', b__in='select * from blah where c=:$c', d__any={'one__like': 'o', 'two': 2}, a0=3, a00=1, a00a=2, a00aa=4, # <-- breaks without correct interpolation key order ahash=sha256(b'hello world'), limit=10, order_by='b', **{'$c': 3}) ), "select * from foo WHERE a != 'b' AND " "b IN (select * from blah where c=3) AND " "(one LIKE 'o' OR two = 2) AND " "a0 = 3 AND a00 = 1 AND a00a = 2 AND a00aa = 4 " "AND ahash = X'b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9' " "ORDER BY b LIMIT 10" ) class TestQueries(AsyncioTestCase): async def asyncSetUp(self): self.ledger = Ledger({ 'db': Database(':memory:'), 'headers': Headers(':memory:') }) self.wallet = Wallet() await self.ledger.db.open() async def asyncTearDown(self): await self.ledger.db.close() async def create_account(self, wallet=None): account = Account.generate(self.ledger, wallet or self.wallet) await account.ensure_address_gap() return account async def create_tx_from_nothing(self, my_account, height): to_address = await my_account.receiving.get_or_create_usable_address() to_hash = Ledger.address_to_hash160(to_address) tx = Transaction(height=height, is_verified=True) \ .add_inputs([self.txi(self.txo(1, sha256(str(height).encode())))]) \ .add_outputs([self.txo(1, to_hash)]) await self.ledger.db.insert_transaction(tx) await self.ledger.db.save_transaction_io(tx, to_address, to_hash, '') return tx async def create_tx_from_txo(self, txo, to_account, height): from_hash = txo.script.values['pubkey_hash'] from_address = self.ledger.hash160_to_address(from_hash) to_address = await to_account.receiving.get_or_create_usable_address() to_hash = Ledger.address_to_hash160(to_address) tx = Transaction(height=height, is_verified=True) \ .add_inputs([self.txi(txo)]) \ .add_outputs([self.txo(1, to_hash)]) await self.ledger.db.insert_transaction(tx) await self.ledger.db.save_transaction_io(tx, from_address, from_hash, '') await self.ledger.db.save_transaction_io(tx, to_address, to_hash, '') return tx async def create_tx_to_nowhere(self, txo, height): from_hash = txo.script.values['pubkey_hash'] from_address = self.ledger.hash160_to_address(from_hash) to_hash = NULL_HASH tx = Transaction(height=height, is_verified=True) \ .add_inputs([self.txi(txo)]) \ .add_outputs([self.txo(1, to_hash)]) await self.ledger.db.insert_transaction(tx) await self.ledger.db.save_transaction_io(tx, from_address, from_hash, '') return tx def txo(self, amount, address): return get_output(int(amount*COIN), address) def txi(self, txo): return Input.spend(txo) async def test_large_tx_doesnt_hit_variable_limits(self): # SQLite is usually compiled with 999 variables limit: https://www.sqlite.org/limits.html # This can be removed when there is a better way. See: https://github.com/lbryio/lbry-sdk/issues/2281 fetchall = self.ledger.db.db.execute_fetchall def check_parameters_length(sql, parameters, read_only=False): self.assertLess(len(parameters or []), 999) return fetchall(sql, parameters, read_only) self.ledger.db.db.execute_fetchall = check_parameters_length account = await self.create_account() tx = await self.create_tx_from_nothing(account, 0) for height in range(1, 1200): tx = await self.create_tx_from_txo(tx.outputs[0], account, height=height) variable_limit = self.ledger.db.MAX_QUERY_VARIABLES for limit in range(variable_limit - 2, variable_limit + 2): txs = await self.ledger.get_transactions( accounts=self.wallet.accounts, limit=limit, order_by='height asc') self.assertEqual(len(txs), limit) inputs, outputs, last_tx = set(), set(), txs[0] for tx in txs[1:]: self.assertEqual(len(tx.inputs), 1) self.assertEqual(tx.inputs[0].txo_ref.tx_ref.id, last_tx.id) self.assertEqual(len(tx.outputs), 1) last_tx = tx async def test_queries(self): wallet1 = Wallet() account1 = await self.create_account(wallet1) self.assertEqual(26, await self.ledger.db.get_address_count(accounts=[account1])) wallet2 = Wallet() account2 = await self.create_account(wallet2) account3 = await self.create_account(wallet2) self.assertEqual(26, await self.ledger.db.get_address_count(accounts=[account2])) self.assertEqual(0, await self.ledger.db.get_transaction_count(accounts=[account1, account2, account3])) self.assertEqual(0, await self.ledger.db.get_utxo_count()) self.assertListEqual([], await self.ledger.db.get_utxos()) self.assertEqual(0, await self.ledger.db.get_txo_count()) self.assertEqual(0, await self.ledger.db.get_balance(wallet=wallet1)) self.assertEqual(0, await self.ledger.db.get_balance(wallet=wallet2)) self.assertEqual(0, await self.ledger.db.get_balance(accounts=[account1])) self.assertEqual(0, await self.ledger.db.get_balance(accounts=[account2])) self.assertEqual(0, await self.ledger.db.get_balance(accounts=[account3])) tx1 = await self.create_tx_from_nothing(account1, 1) self.assertEqual(1, await self.ledger.db.get_transaction_count(accounts=[account1])) self.assertEqual(0, await self.ledger.db.get_transaction_count(accounts=[account2])) self.assertEqual(1, await self.ledger.db.get_utxo_count(accounts=[account1])) self.assertEqual(1, await self.ledger.db.get_txo_count(accounts=[account1])) self.assertEqual(0, await self.ledger.db.get_txo_count(accounts=[account2])) self.assertEqual(10**8, await self.ledger.db.get_balance(wallet=wallet1)) self.assertEqual(0, await self.ledger.db.get_balance(wallet=wallet2)) self.assertEqual(10**8, await self.ledger.db.get_balance(accounts=[account1])) self.assertEqual(0, await self.ledger.db.get_balance(accounts=[account2])) self.assertEqual(0, await self.ledger.db.get_balance(accounts=[account3])) tx2 = await self.create_tx_from_txo(tx1.outputs[0], account2, 2) tx2b = await self.create_tx_from_nothing(account3, 2) self.assertEqual(2, await self.ledger.db.get_transaction_count(accounts=[account1])) self.assertEqual(1, await self.ledger.db.get_transaction_count(accounts=[account2])) self.assertEqual(1, await self.ledger.db.get_transaction_count(accounts=[account3])) self.assertEqual(0, await self.ledger.db.get_utxo_count(accounts=[account1])) self.assertEqual(1, await self.ledger.db.get_txo_count(accounts=[account1])) self.assertEqual(1, await self.ledger.db.get_utxo_count(accounts=[account2])) self.assertEqual(1, await self.ledger.db.get_txo_count(accounts=[account2])) self.assertEqual(1, await self.ledger.db.get_utxo_count(accounts=[account3])) self.assertEqual(1, await self.ledger.db.get_txo_count(accounts=[account3])) self.assertEqual(0, await self.ledger.db.get_balance(wallet=wallet1)) self.assertEqual(10**8+10**8, await self.ledger.db.get_balance(wallet=wallet2)) self.assertEqual(0, await self.ledger.db.get_balance(accounts=[account1])) self.assertEqual(10**8, await self.ledger.db.get_balance(accounts=[account2])) self.assertEqual(10**8, await self.ledger.db.get_balance(accounts=[account3])) tx3 = await self.create_tx_to_nowhere(tx2.outputs[0], 3) self.assertEqual(2, await self.ledger.db.get_transaction_count(accounts=[account1])) self.assertEqual(2, await self.ledger.db.get_transaction_count(accounts=[account2])) self.assertEqual(0, await self.ledger.db.get_utxo_count(accounts=[account1])) self.assertEqual(1, await self.ledger.db.get_txo_count(accounts=[account1])) self.assertEqual(0, await self.ledger.db.get_utxo_count(accounts=[account2])) self.assertEqual(1, await self.ledger.db.get_txo_count(accounts=[account2])) self.assertEqual(0, await self.ledger.db.get_balance(wallet=wallet1)) self.assertEqual(10**8, await self.ledger.db.get_balance(wallet=wallet2)) self.assertEqual(0, await self.ledger.db.get_balance(accounts=[account1])) self.assertEqual(0, await self.ledger.db.get_balance(accounts=[account2])) self.assertEqual(10**8, await self.ledger.db.get_balance(accounts=[account3])) txs = await self.ledger.db.get_transactions(accounts=[account1, account2]) self.assertListEqual([tx3.id, tx2.id, tx1.id], [tx.id for tx in txs]) self.assertListEqual([3, 2, 1], [tx.height for tx in txs]) txs = await self.ledger.db.get_transactions(wallet=wallet1, accounts=wallet1.accounts, include_is_my_output=True) self.assertListEqual([tx2.id, tx1.id], [tx.id for tx in txs]) self.assertEqual(txs[0].inputs[0].is_my_input, True) self.assertEqual(txs[0].outputs[0].is_my_output, False) self.assertEqual(txs[1].inputs[0].is_my_input, False) self.assertEqual(txs[1].outputs[0].is_my_output, True) txs = await self.ledger.db.get_transactions(wallet=wallet2, accounts=[account2], include_is_my_output=True) self.assertListEqual([tx3.id, tx2.id], [tx.id for tx in txs]) self.assertEqual(txs[0].inputs[0].is_my_input, True) self.assertEqual(txs[0].outputs[0].is_my_output, False) self.assertEqual(txs[1].inputs[0].is_my_input, False) self.assertEqual(txs[1].outputs[0].is_my_output, True) self.assertEqual(2, await self.ledger.db.get_transaction_count(accounts=[account2])) tx = await self.ledger.db.get_transaction(txid=tx2.id) self.assertEqual(tx.id, tx2.id) self.assertIsNone(tx.inputs[0].is_my_input) self.assertIsNone(tx.outputs[0].is_my_output) tx = await self.ledger.db.get_transaction(wallet=wallet1, txid=tx2.id, include_is_my_output=True) self.assertTrue(tx.inputs[0].is_my_input) self.assertFalse(tx.outputs[0].is_my_output) tx = await self.ledger.db.get_transaction(wallet=wallet2, txid=tx2.id, include_is_my_output=True) self.assertFalse(tx.inputs[0].is_my_input) self.assertTrue(tx.outputs[0].is_my_output) # height 0 sorted to the top with the rest in descending order tx4 = await self.create_tx_from_nothing(account1, 0) txos = await self.ledger.db.get_txos() self.assertListEqual([0, 3, 2, 2, 1], [txo.tx_ref.height for txo in txos]) self.assertListEqual([tx4.id, tx3.id, tx2.id, tx2b.id, tx1.id], [txo.tx_ref.id for txo in txos]) txs = await self.ledger.db.get_transactions(accounts=[account1, account2]) self.assertListEqual([0, 3, 2, 1], [tx.height for tx in txs]) self.assertListEqual([tx4.id, tx3.id, tx2.id, tx1.id], [tx.id for tx in txs]) async def test_empty_history(self): self.assertEqual((None, []), await self.ledger.get_local_status_and_history('')) class TestUpgrade(AsyncioTestCase): def setUp(self) -> None: self.path = tempfile.mktemp() def tearDown(self) -> None: os.remove(self.path) def get_version(self): with sqlite3.connect(self.path) as conn: versions = conn.execute('select version from version').fetchall() assert len(versions) == 1 return versions[0][0] def get_tables(self): with sqlite3.connect(self.path) as conn: sql = "SELECT name FROM sqlite_master WHERE type='table' ORDER BY name;" return [col[0] for col in conn.execute(sql).fetchall()] def add_address(self, address): with sqlite3.connect(self.path) as conn: conn.execute(""" INSERT INTO account_address (address, account, chain, n, pubkey, chain_code, depth) VALUES (?, 'account1', 0, 0, 'pubkey', 'chain_code', 0) """, (address,)) def get_addresses(self): with sqlite3.connect(self.path) as conn: sql = "SELECT address FROM account_address ORDER BY address;" return [col[0] for col in conn.execute(sql).fetchall()] async def test_reset_on_version_change(self): self.ledger = Ledger({ 'db': Database(self.path), 'headers': Headers(':memory:') }) # initial open, pre-version enabled db self.ledger.db.SCHEMA_VERSION = None self.assertListEqual(self.get_tables(), []) await self.ledger.db.open() self.assertEqual(self.get_tables(), ['account_address', 'pubkey_address', 'tx', 'txi', 'txo']) self.assertListEqual(self.get_addresses(), []) self.add_address('address1') await self.ledger.db.close() # initial open after version enabled self.ledger.db.SCHEMA_VERSION = '1.0' await self.ledger.db.open() self.assertEqual(self.get_version(), '1.0') self.assertListEqual(self.get_tables(), ['account_address', 'pubkey_address', 'tx', 'txi', 'txo', 'version']) self.assertListEqual(self.get_addresses(), []) # address1 deleted during version upgrade self.add_address('address2') await self.ledger.db.close() # nothing changes self.assertEqual(self.get_version(), '1.0') self.assertListEqual(self.get_tables(), ['account_address', 'pubkey_address', 'tx', 'txi', 'txo', 'version']) await self.ledger.db.open() self.assertEqual(self.get_version(), '1.0') self.assertListEqual(self.get_tables(), ['account_address', 'pubkey_address', 'tx', 'txi', 'txo', 'version']) self.assertListEqual(self.get_addresses(), ['address2']) await self.ledger.db.close() # upgrade version, database reset self.ledger.db.SCHEMA_VERSION = '1.1' self.ledger.db.CREATE_TABLES_QUERY += """ create table if not exists foo (bar text); """ await self.ledger.db.open() self.assertEqual(self.get_version(), '1.1') self.assertListEqual(self.get_tables(), ['account_address', 'foo', 'pubkey_address', 'tx', 'txi', 'txo', 'version']) self.assertListEqual(self.get_addresses(), []) # all tables got reset await self.ledger.db.close() class TestSQLiteRace(AsyncioTestCase): max_misuse_attempts = 40000 def setup_db(self): self.db = sqlite3.connect(":memory:", isolation_level=None) self.db.executescript( "create table test1 (id text primary key not null, val text);\n" + "create table test2 (id text primary key not null, val text);\n" + "\n".join(f"insert into test1 values ({v}, NULL);" for v in range(1000)) ) async def asyncSetUp(self): self.executor = ThreadPoolExecutor(1) await self.loop.run_in_executor(self.executor, self.setup_db) async def asyncTearDown(self): await self.loop.run_in_executor(self.executor, self.db.close) self.executor.shutdown() async def test_binding_param_0_error(self): # test real param 0 binding errors for supported_type in [str, int, bytes]: await self.loop.run_in_executor( self.executor, self.db.executemany, "insert into test2 values (?, NULL)", [(supported_type(1), ), (supported_type(2), )] ) await self.loop.run_in_executor( self.executor, self.db.execute, "delete from test2 where id in (1, 2)" ) for unsupported_type in [lambda x: (x, ), lambda x: [x], lambda x: {x}]: try: await self.loop.run_in_executor( self.executor, self.db.executemany, "insert into test2 (id, val) values (?, NULL)", [(unsupported_type(1), ), (unsupported_type(2), )] ) self.assertTrue(False) except sqlite3.InterfaceError as err: self.assertEqual(str(err), "Error binding parameter 0 - probably unsupported type.") async def test_unhandled_sqlite_misuse(self): # test SQLITE_MISUSE being incorrectly raised as a param 0 binding error attempts = 0 python_version = sys.version.split('\n')[0].rstrip(' ') try: while attempts < self.max_misuse_attempts: f1 = asyncio.wrap_future( self.loop.run_in_executor( self.executor, self.db.executemany, "update test1 set val='derp' where id=?", ((str(i),) for i in range(2)) ) ) f2 = asyncio.wrap_future( self.loop.run_in_executor( self.executor, self.db.executemany, "update test2 set val='derp' where id=?", ((str(i),) for i in range(2)) ) ) attempts += 1 await asyncio.gather(f1, f2) print(f"\nsqlite3 {sqlite3.version}/python {python_version} " f"did not raise SQLITE_MISUSE within {attempts} attempts of the race condition") self.assertTrue(False, 'this test failing means either the sqlite race conditions ' 'have been fixed in cpython or the test max_attempts needs to be increased') except sqlite3.InterfaceError as err: self.assertEqual(str(err), "Error binding parameter 0 - probably unsupported type.") print(f"\nsqlite3 {sqlite3.version}/python {python_version} raised SQLITE_MISUSE " f"after {attempts} attempts of the race condition") @unittest.SkipTest async def test_fetchall_prevents_sqlite_misuse(self): # test that calling fetchall sufficiently avoids the race attempts = 0 def executemany_fetchall(query, params): self.db.executemany(query, params).fetchall() while attempts < self.max_misuse_attempts: f1 = asyncio.wrap_future( self.loop.run_in_executor( self.executor, executemany_fetchall, "update test1 set val='derp' where id=?", ((str(i),) for i in range(2)) ) ) f2 = asyncio.wrap_future( self.loop.run_in_executor( self.executor, executemany_fetchall, "update test2 set val='derp' where id=?", ((str(i),) for i in range(2)) ) ) attempts += 1 await asyncio.gather(f1, f2)