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Improve behaviour of row policies, now it applies for a table always when defined for that table (even for another user).

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This commit is contained in:
Vitaly Baranov 2020-02-18 05:36:29 +03:00
parent 5849dd2236
commit 6cac4a919b
3 changed files with 62 additions and 55 deletions
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7
dbms/src/Access/RowPolicyContextFactory.cpp
View File

@ -111,13 +111,10 @@ namespace
ASTPtr getResult() &&
{
/// Process permissive conditions.
if (!permissions.empty())
restrictions.push_back(applyFunctionOR(std::move(permissions)));
/// Process restrictive conditions.
if (!restrictions.empty())
return applyFunctionAND(std::move(restrictions));
return nullptr;
}
private:
@ -275,11 +272,11 @@ void RowPolicyContextFactory::mixConditionsForContext(RowPolicyContext & context
std::unordered_map<DatabaseAndTableName, Mixers, Hash> map_of_mixers;
for (const auto & [policy_id, info] : all_policies)
{
if (info.canUseWithContext(context))
{
const auto & policy = *info.policy;
auto & mixers = map_of_mixers[std::pair{policy.getDatabase(), policy.getTableName()}];
if (info.canUseWithContext(context))
{
mixers.policy_ids.push_back(policy_id);
for (auto index : ext::range(0, MAX_CONDITION_INDEX))
if (info.parsed_conditions[index])

39
dbms/src/Access/UsersConfigAccessStorage.cpp
View File

@ -265,10 +265,12 @@ namespace
std::vector<AccessEntityPtr> parseRowPolicies(const Poco::Util::AbstractConfiguration & config, Poco::Logger * log)
{
std::vector<AccessEntityPtr> policies;
std::map<std::pair<String /* database */, String /* table */>, std::unordered_map<String /* user */, String /* filter */>> all_filters_map;
Poco::Util::AbstractConfiguration::Keys user_names;
config.keys("users", user_names);
try
{
config.keys("users", user_names);
for (const String & user_name : user_names)
{
const String databases_config = "users." + user_name + ".databases";
@ -300,27 +302,32 @@ namespace
}
}
if (config.has(filter_config))
all_filters_map[{database, table_name}][user_name] = config.getString(filter_config);
}
}
}
}
}
catch (...)
{
try
tryLogCurrentException(log, "Could not parse row policies");
}
std::vector<AccessEntityPtr> policies;
for (auto & [database_and_table_name, user_to_filters] : all_filters_map)
{
const auto & [database, table_name] = database_and_table_name;
for (const String & user_name : user_names)
{
auto it = user_to_filters.find(user_name);
String filter = (it != user_to_filters.end()) ? it->second : "1";
auto policy = std::make_shared<RowPolicy>();
policy->setFullName(database, table_name, user_name);
policy->conditions[RowPolicy::SELECT_FILTER] = config.getString(filter_config);
policy->conditions[RowPolicy::SELECT_FILTER] = filter;
policy->roles.add(generateID(typeid(User), user_name));
policies.push_back(policy);
}
catch (...)
{
tryLogCurrentException(
log,
"Could not parse row policy " + backQuote(user_name) + " on table " + backQuoteIfNeed(database) + "."
+ backQuoteIfNeed(table_name));
}
}
}
}
}
}
return policies;
}

19
dbms/tests/integration/test_row_policy/test.py
View File

@ -209,35 +209,38 @@ def test_introspection():
assert instance.query("SELECT currentRowPolicies('mydb', 'filtered_table1')") == "['default']\n"
assert instance.query("SELECT currentRowPolicies('mydb', 'filtered_table2')") == "['default']\n"
assert instance.query("SELECT currentRowPolicies('mydb', 'filtered_table3')") == "['default']\n"
assert instance.query("SELECT arraySort(currentRowPolicies())") == "[('mydb','filtered_table1','default'),('mydb','filtered_table2','default'),('mydb','filtered_table3','default')]\n"
assert instance.query("SELECT arraySort(currentRowPolicies())") == "[('mydb','filtered_table1','default'),('mydb','filtered_table2','default'),('mydb','filtered_table3','default'),('mydb','local','default')]\n"
policy1 = "mydb\tfiltered_table1\tdefault\tdefault ON mydb.filtered_table1\t9e8a8f62-4965-2b5e-8599-57c7b99b3549\tusers.xml\t0\ta = 1\t\t\t\t\n"
policy2 = "mydb\tfiltered_table2\tdefault\tdefault ON mydb.filtered_table2\tcffae79d-b9bf-a2ef-b798-019c18470b25\tusers.xml\t0\ta + b < 1 or c - d > 5\t\t\t\t\n"
policy3 = "mydb\tfiltered_table3\tdefault\tdefault ON mydb.filtered_table3\t12fc5cef-e3da-3940-ec79-d8be3911f42b\tusers.xml\t0\tc = 1\t\t\t\t\n"
policy4 = "mydb\tlocal\tanother\tanother ON mydb.local\t5b23c389-7e18-06bf-a6bc-dd1afbbc0a97\tusers.xml\t0\ta = 1\t\t\t\t\n"
policy4 = "mydb\tlocal\tdefault\tdefault ON mydb.local\tcdacaeb5-1d97-f99d-2bb0-4574f290629c\tusers.xml\t0\t1\t\t\t\t\n"
assert instance.query("SELECT * from system.row_policies WHERE has(currentRowPolicyIDs('mydb', 'filtered_table1'), id) ORDER BY table, name") == policy1
assert instance.query("SELECT * from system.row_policies WHERE has(currentRowPolicyIDs('mydb', 'filtered_table2'), id) ORDER BY table, name") == policy2
assert instance.query("SELECT * from system.row_policies WHERE has(currentRowPolicyIDs('mydb', 'filtered_table3'), id) ORDER BY table, name") == policy3
assert instance.query("SELECT * from system.row_policies ORDER BY table, name") == policy1 + policy2 + policy3 + policy4
assert instance.query("SELECT * from system.row_policies WHERE has(currentRowPolicyIDs(), id) ORDER BY table, name") == policy1 + policy2 + policy3
assert instance.query("SELECT * from system.row_policies WHERE has(currentRowPolicyIDs('mydb', 'local'), id) ORDER BY table, name") == policy4
assert instance.query("SELECT * from system.row_policies WHERE has(currentRowPolicyIDs(), id) ORDER BY table, name") == policy1 + policy2 + policy3 + policy4
def test_dcl_introspection():
assert instance.query("SHOW POLICIES ON mydb.filtered_table1") == "default\n"
assert instance.query("SHOW POLICIES ON mydb.filtered_table1") == "another\ndefault\n"
assert instance.query("SHOW POLICIES CURRENT ON mydb.filtered_table2") == "default\n"
assert instance.query("SHOW POLICIES") == "another ON mydb.local\ndefault ON mydb.filtered_table1\ndefault ON mydb.filtered_table2\ndefault ON mydb.filtered_table3\n"
assert instance.query("SHOW POLICIES CURRENT") == "default ON mydb.filtered_table1\ndefault ON mydb.filtered_table2\ndefault ON mydb.filtered_table3\n"
assert instance.query("SHOW POLICIES") == "another ON mydb.filtered_table1\nanother ON mydb.filtered_table2\nanother ON mydb.filtered_table3\nanother ON mydb.local\ndefault ON mydb.filtered_table1\ndefault ON mydb.filtered_table2\ndefault ON mydb.filtered_table3\ndefault ON mydb.local\n"
assert instance.query("SHOW POLICIES CURRENT") == "default ON mydb.filtered_table1\ndefault ON mydb.filtered_table2\ndefault ON mydb.filtered_table3\ndefault ON mydb.local\n"
assert instance.query("SHOW CREATE POLICY default ON mydb.filtered_table1") == "CREATE POLICY default ON mydb.filtered_table1 FOR SELECT USING a = 1 TO default\n"
assert instance.query("SHOW CREATE POLICY default ON mydb.filtered_table2") == "CREATE POLICY default ON mydb.filtered_table2 FOR SELECT USING ((a + b) < 1) OR ((c - d) > 5) TO default\n"
assert instance.query("SHOW CREATE POLICY default ON mydb.filtered_table3") == "CREATE POLICY default ON mydb.filtered_table3 FOR SELECT USING c = 1 TO default\n"
assert instance.query("SHOW CREATE POLICY default ON mydb.local") == "CREATE POLICY default ON mydb.local FOR SELECT USING 1 TO default\n"
copy_policy_xml('all_rows.xml')
assert instance.query("SHOW POLICIES CURRENT") == "default ON mydb.filtered_table1\ndefault ON mydb.filtered_table2\ndefault ON mydb.filtered_table3\n"
assert instance.query("SHOW CREATE POLICY default ON mydb.filtered_table1") == "CREATE POLICY default ON mydb.filtered_table1 FOR SELECT USING 1 TO default\n"
assert instance.query("SHOW CREATE POLICY default ON mydb.filtered_table2") == "CREATE POLICY default ON mydb.filtered_table2 FOR SELECT USING 1 TO default\n"
assert instance.query("SHOW CREATE POLICY default ON mydb.filtered_table3") == "CREATE POLICY default ON mydb.filtered_table3 FOR SELECT USING 1 TO default\n"
copy_policy_xml('no_rows.xml')
assert instance.query("SHOW POLICIES CURRENT") == "default ON mydb.filtered_table1\ndefault ON mydb.filtered_table2\ndefault ON mydb.filtered_table3\n"
assert instance.query("SHOW CREATE POLICY default ON mydb.filtered_table1") == "CREATE POLICY default ON mydb.filtered_table1 FOR SELECT USING NULL TO default\n"
assert instance.query("SHOW CREATE POLICY default ON mydb.filtered_table2") == "CREATE POLICY default ON mydb.filtered_table2 FOR SELECT USING NULL TO default\n"
assert instance.query("SHOW CREATE POLICY default ON mydb.filtered_table3") == "CREATE POLICY default ON mydb.filtered_table3 FOR SELECT USING NULL TO default\n"
@ -251,7 +254,7 @@ def test_dcl_management():
assert instance.query("SHOW POLICIES") == ""
instance.query("CREATE POLICY pA ON mydb.filtered_table1 FOR SELECT USING a<b")
assert instance.query("SELECT * FROM mydb.filtered_table1") == "0\t0\n0\t1\n1\t0\n1\t1\n"
assert instance.query("SELECT * FROM mydb.filtered_table1") == ""
assert instance.query("SHOW POLICIES CURRENT ON mydb.filtered_table1") == ""
assert instance.query("SHOW POLICIES ON mydb.filtered_table1") == "pA\n"