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test_sql_parameterization.py
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501 lines (404 loc) · 15.7 KB
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from codemodder.codemods.test import BaseCodemodTest
from core_codemods.sql_parameterization import SQLQueryParameterization
class TestSQLQueryParameterization(BaseCodemodTest):
codemod = SQLQueryParameterization
def test_name(self):
assert self.codemod.name == "sql-parameterization"
def test_simple(self, tmpdir):
input_code = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name ='" + name + "'")
"""
expected = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name =?", (name, ))
"""
self.run_and_assert(tmpdir, input_code, expected)
def test_multiple(self, tmpdir):
input_code = """
import sqlite3
name = input()
phone = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name ='" + name + r"' AND phone ='" + phone + "'" )
"""
expected = """
import sqlite3
name = input()
phone = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name =?" + r" AND phone =?", (name, phone, ))
"""
self.run_and_assert(tmpdir, input_code, expected)
def test_multiple_injectable_calls(self, tmpdir):
input_code = """
import sqlite3
def f(user):
sql = '''SELECT user FROM users WHERE user = \'%s\' '''
conn = sqlite3.connect('example')
conn.cursor().execute(sql % (user))
def g(user):
sql = "SELECT user FROM users WHERE user = '" + user + "'"
conn = sqlite3.connect('example')
conn.cursor().execute(sql)
"""
expected = """
import sqlite3
def f(user):
sql = '''SELECT user FROM users WHERE user = ? '''
conn = sqlite3.connect('example')
conn.cursor().execute(sql, ((user), ))
def g(user):
sql = "SELECT user FROM users WHERE user = ?"
conn = sqlite3.connect('example')
conn.cursor().execute(sql, (user, ))
"""
self.run_and_assert(tmpdir, input_code, expected, num_changes=2)
def test_simple_with_quotes_in_middle(self, tmpdir):
input_code = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name ='user_" + name + r"_system'")
"""
expected = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name =?", ('user_{0}{1}'.format(name, r"_system"), ))
"""
self.run_and_assert(tmpdir, input_code, expected)
def test_can_deal_with_multiple_variables(self, tmpdir):
input_code = """
import sqlite3
def foo(self, cursor, name, phone):
a = "SELECT * from USERS "
b = "WHERE name = '" + name
c = "' AND phone = '" + phone + "'"
return cursor.execute(a + b + c)
"""
expected = """
import sqlite3
def foo(self, cursor, name, phone):
a = "SELECT * from USERS "
b = "WHERE name = ?"
c = " AND phone = ?"
return cursor.execute(a + b + c, (name, phone, ))
"""
self.run_and_assert(tmpdir, input_code, expected)
def test_simple_if(self, tmpdir):
input_code = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name ='" + ('Jenny' if True else name) + "'")
"""
expected = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name =?", (('Jenny' if True else name), ))
"""
self.run_and_assert(tmpdir, input_code, expected)
def test_multiple_escaped_quote(self, tmpdir):
input_code = """
import sqlite3
name = input()
phone = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute('SELECT * from USERS WHERE name =\\'' + name + '\\' AND phone =\\'' + phone + '\\'' )
"""
expected = """
import sqlite3
name = input()
phone = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute('SELECT * from USERS WHERE name =?' + ' AND phone =?', (name, phone, ))
"""
self.run_and_assert(tmpdir, input_code, expected)
def test_simple_concatenated_strings(self, tmpdir):
input_code = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS" "WHERE name ='" + name + "'")
"""
expected = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS" "WHERE name =?", (name, ))
"""
self.run_and_assert(tmpdir, input_code, expected)
class TestSQLQueryParameterizationFormattedString(BaseCodemodTest):
codemod = SQLQueryParameterization
def test_formatted_string_simple(self, tmpdir):
input_code = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute(f"SELECT * from USERS WHERE name='{name}'")
"""
expected = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name=?", (name, ))
"""
self.run_and_assert(tmpdir, input_code, expected)
def test_formatted_string_simple_aliased(self, tmpdir):
input_code = """
import sqlite3
def foo():
table_name = "TABLE"
search_vector = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
query = f"DELETE FROM {table_name} WHERE embeddings <=> '{search_vector}'"
cursor.execute(query)
"""
expected = """
import sqlite3
def foo():
table_name = "TABLE"
search_vector = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
query = f"DELETE FROM {table_name} WHERE embeddings <=> ?"
cursor.execute(query, (search_vector, ))
"""
self.run_and_assert(tmpdir, input_code, expected)
def test_formatted_string_quote_in_middle(self, tmpdir):
input_code = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute(f"SELECT * from USERS WHERE name='user_{name}_admin'")
"""
expected = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name=?", ('user_{0}_admin'.format(name), ))
"""
self.run_and_assert(tmpdir, input_code, expected)
def test_formatted_string_with_literal(self, tmpdir):
input_code = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute(f"SELECT * from USERS WHERE name='{name}_{1+2}'")
"""
expected = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name=?", ('{0}_{1}'.format(name, 1+2), ))
"""
self.run_and_assert(tmpdir, input_code, expected)
def test_formatted_string_nested(self, tmpdir):
input_code = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute(f"SELECT * from USERS WHERE name={f"'{name}'"}")
"""
expected = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute(f"SELECT * from USERS WHERE name={"?"}", (name, ))
"""
self.run_and_assert(tmpdir, input_code, expected)
def test_formatted_string_concat_mixed(self, tmpdir):
input_code = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name='" + f"{name}_{b'123'}" "'")
"""
expected = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name=?", ('{0}_{1}'.format(name, b'123'), ))
"""
self.run_and_assert(tmpdir, input_code, expected)
def test_multiple_expressions_injection(self, tmpdir):
input_code = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name ='" + name + "_username" + "'")
"""
expected = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name =?", ('{0}_username'.format(name), ))
"""
self.run_and_assert(tmpdir, input_code, expected)
class TestSQLQueryParameterizationPrintfStrings(BaseCodemodTest):
codemod = SQLQueryParameterization
def test_printf_operator_simple(self, tmpdir):
input_code = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name ='%s'" % name)
"""
expected = """
import sqlite3
name = input()
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name =?", (name, ))
"""
self.run_and_assert(tmpdir, input_code, expected)
def test_printf_operator_chained(self, tmpdir):
input_code = """
import sqlite3
def foo():
name = "user_%s_normal" % ("%s" % input())
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name ='%s'" % name)
"""
expected = """
import sqlite3
def foo():
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name =?", ('user_{0}_normal'.format(input()), ))
"""
self.run_and_assert(tmpdir, input_code, expected)
def test_printf_operator_mixed(self, tmpdir):
input_code = """
import sqlite3
def foo():
var = "%s"
name = "user_%s_normal" % (f"{var}" % input())
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name ='%s'" % name)
"""
expected = """
import sqlite3
def foo():
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name =?", ('user_{0}_normal'.format(input()), ))
"""
self.run_and_assert(tmpdir, input_code, expected)
class TestSQLQueryParameterizationNegative(BaseCodemodTest):
codemod = SQLQueryParameterization
# negative tests below
def test_no_sql_keyword(self, tmpdir):
input_code = """
import sqlite3
def foo(self, cursor, name, phone):
a = "COLLECT * from USERS "
b = "WHERE name = '" + name
c = "' AND phone = '" + phone + "'"
return cursor.execute(a + b + c)
"""
self.run_and_assert(tmpdir, input_code, input_code)
def test_wont_mess_with_byte_strings(self, tmpdir):
input_code = """
import sqlite3
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE " + b"name ='" + str(1234) + b"'")
"""
self.run_and_assert(tmpdir, input_code, input_code)
def test_wont_parameterize_literals(self, tmpdir):
input_code = """
import sqlite3
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name ='" + str(1234) + "'")
"""
self.run_and_assert(tmpdir, input_code, input_code)
def test_wont_parameterize_literals_if(self, tmpdir):
input_code = """
import sqlite3
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name ='" + ('Jenny' if True else 'Lorelei') + "'")
"""
self.run_and_assert(tmpdir, input_code, input_code)
def test_will_ignore_escaped_quote(self, tmpdir):
input_code = """
import sqlite3
connection = sqlite3.connect("my_db.db")
cursor = connection.cursor()
cursor.execute("SELECT * from USERS WHERE name ='Jenny\'s username'")
"""
self.run_and_assert(tmpdir, input_code, input_code)
def test_already_has_parameters(self, tmpdir):
input_code = """
import sqlite3
def foo(self, cursor, name, phone):
a = "SELECT * from USERS "
b = "WHERE name = '" + name
c = "' AND phone = ?"
return cursor.execute(a + b + c, (phone,))
"""
self.run_and_assert(tmpdir, input_code, input_code)
def test_wont_change_class_attribute(self, tmpdir):
# query may be accesed from outside the module by importing A
input_code = """
import sqlite3
class A():
query = "SELECT * from USERS WHERE name ='"
def foo(self, name, cursor):
return cursor.execute(query + name + "'")
"""
self.run_and_assert(tmpdir, input_code, input_code)
def test_wont_change_module_variable(self, tmpdir):
# query may be accesed from outside the module by importing it
input_code = """
import sqlite3
query = "SELECT * from USERS WHERE name ='"
def foo(name, cursor):
return cursor.execute(query + name + "'")
"""
self.run_and_assert(tmpdir, input_code, input_code)
def test_wont_change_module_variable_as_part_of_expression(self, tmpdir):
# query may be accesed from outside the module by importing it
input_code = """
import sqlite3
query = "SELECT * from USERS WHERE name =" + "'"
def foo(name, cursor):
return cursor.execute(query + name + "'")
"""
self.run_and_assert(tmpdir, input_code, input_code)