mirror of
https://github.com/MariaDB/server.git
synced 2025-08-09 03:51:36 +02:00
e3d9369774
let's always disconnect a user connection before dropping the said user. MariaDB is traditionally very tolerant to active connections of the dropped user, which isn't the case for most other databases. Let's avoid unintentionally spreading incompatible behavior and disconnect before drop. Except in cases when the test specifically tests such a behavior.
451 lines
12 KiB
Text
451 lines
12 KiB
Text
create database db1;
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use db1;
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create table t1(a int);
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insert into t1 values (1),(2),(3);
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create table t2(a int);
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CREATE USER 'foo'@'%';
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CREATE USER 'bar'@'%';
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create definer=foo SQL SECURITY definer view db1.v1 as select * from db1.t1;
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create definer=foo function f1 (a int) returns INT SQL SECURITY DEFINER
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BEGIN
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insert into t2 select * from t1;
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return a+1;
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END|
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change_user foo,,;
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set optimizer_trace="enabled=on";
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select * from db1.t1;
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ERROR 42000: SELECT command denied to user 'foo'@'localhost' for table `db1`.`t1`
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select * from information_schema.OPTIMIZER_TRACE;
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QUERY TRACE MISSING_BYTES_BEYOND_MAX_MEM_SIZE INSUFFICIENT_PRIVILEGES
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0 1
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set optimizer_trace="enabled=off";
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change_user root,,;
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grant select(a) on db1.t1 to 'foo'@'%';
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change_user foo,,;
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set optimizer_trace="enabled=on";
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select * from db1.t1;
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a
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1
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2
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3
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# INSUFFICIENT PRIVILEGES should be set to 1
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# Trace and Query should be empty
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# We need SELECT privilege on the table db1.t1;
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select * from information_schema.OPTIMIZER_TRACE;
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QUERY TRACE MISSING_BYTES_BEYOND_MAX_MEM_SIZE INSUFFICIENT_PRIVILEGES
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0 1
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set optimizer_trace="enabled=off";
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change_user root,,;
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select * from information_schema.OPTIMIZER_TRACE;
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QUERY TRACE MISSING_BYTES_BEYOND_MAX_MEM_SIZE INSUFFICIENT_PRIVILEGES
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grant select on db1.t1 to 'foo'@'%';
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grant select on db1.t2 to 'foo'@'%';
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change_user foo,,;
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set optimizer_trace="enabled=on";
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#
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# SELECT privilege on the table db1.t1
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# The trace would be present.
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#
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select * from db1.t1;
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a
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1
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2
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3
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select * from information_schema.OPTIMIZER_TRACE;
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QUERY TRACE MISSING_BYTES_BEYOND_MAX_MEM_SIZE INSUFFICIENT_PRIVILEGES
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select * from db1.t1 {
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"steps": [
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{
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"join_preparation": {
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"select_id": 1,
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"steps": [
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{
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"expanded_query": "select db1.t1.a AS a from t1"
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}
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]
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}
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},
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{
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"join_optimization": {
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"select_id": 1,
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"steps": [
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{
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"rows_estimation": [
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{
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"table": "t1",
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"table_scan": {
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"rows": 3,
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"read_cost": 0.010408815,
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"read_and_compare_cost": 0.010504815
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}
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}
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]
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},
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{
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"table_dependencies": [
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{
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"table": "t1",
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"row_may_be_null": false,
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"map_bit": 0,
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"depends_on_map_bits": []
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}
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]
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},
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{
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"considered_execution_plans": [
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{
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"plan_prefix": "",
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"get_costs_for_tables": [
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{
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"best_access_path": {
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"table": "t1",
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"plan_details": {
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"record_count": 1
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},
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"considered_access_paths": [
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{
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"access_type": "scan",
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"rows": 3,
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"rows_after_filter": 3,
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"rows_out": 3,
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"cost": 0.010504815,
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"index_only": false,
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"chosen": true
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}
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],
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"chosen_access_method": {
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"type": "scan",
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"rows_read": 3,
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"rows_out": 3,
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"cost": 0.010504815,
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"uses_join_buffering": false
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}
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}
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}
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]
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},
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{
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"plan_prefix": "",
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"table": "t1",
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"rows_for_plan": 3,
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"cost_for_plan": 0.010504815
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}
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]
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},
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{
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"best_join_order": ["t1"],
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"rows": 3,
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"cost": 0.010504815
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},
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{
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"attaching_conditions_to_tables": {
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"attached_conditions_computation": [],
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"attached_conditions_summary": [
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{
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"table": "t1",
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"attached_condition": null
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}
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]
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}
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},
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{
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"make_join_readinfo": []
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}
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]
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}
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}
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]
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} 0 0
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set optimizer_trace="enabled=off";
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change_user root,,;
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grant select on db1.v1 to 'foo'@'%';
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grant show view on db1.v1 to 'foo'@'%';
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grant select on db1.v1 to 'bar'@'%';
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grant show view on db1.v1 to 'bar'@'%';
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change_user foo,,;
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select current_user();
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current_user()
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foo@%
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set optimizer_trace="enabled=on";
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select * from db1.v1;
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a
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1
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2
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3
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select * from information_schema.OPTIMIZER_TRACE;
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QUERY TRACE MISSING_BYTES_BEYOND_MAX_MEM_SIZE INSUFFICIENT_PRIVILEGES
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select * from db1.v1 {
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"steps": [
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{
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"join_preparation": {
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"select_id": 1,
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"steps": [
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{
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"view": {
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"table": "v1",
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"select_id": 2,
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"algorithm": "merged"
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}
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},
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{
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"join_preparation": {
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"select_id": 2,
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"steps": [
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{
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"expanded_query": "/* select#2 */ select db1.t1.a AS a from t1"
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}
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]
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}
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},
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{
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"expanded_query": "/* select#1 */ select v1.a AS a from v1"
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}
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]
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}
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},
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{
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"join_optimization": {
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"select_id": 1,
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"steps": [
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{
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"rows_estimation": [
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{
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"table": "t1",
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"table_scan": {
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"rows": 3,
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"read_cost": 0.010408815,
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"read_and_compare_cost": 0.010504815
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}
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}
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]
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},
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{
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"table_dependencies": [
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{
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"table": "t1",
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"row_may_be_null": false,
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"map_bit": 0,
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"depends_on_map_bits": []
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}
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]
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},
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{
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"considered_execution_plans": [
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{
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"plan_prefix": "",
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"get_costs_for_tables": [
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{
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"best_access_path": {
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"table": "t1",
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"plan_details": {
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"record_count": 1
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},
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"considered_access_paths": [
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{
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"access_type": "scan",
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"rows": 3,
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"rows_after_filter": 3,
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"rows_out": 3,
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"cost": 0.010504815,
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"index_only": false,
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"chosen": true
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}
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],
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"chosen_access_method": {
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"type": "scan",
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"rows_read": 3,
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"rows_out": 3,
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"cost": 0.010504815,
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"uses_join_buffering": false
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}
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}
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}
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]
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},
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{
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"plan_prefix": "",
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"table": "t1",
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"rows_for_plan": 3,
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"cost_for_plan": 0.010504815
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}
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]
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},
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{
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"best_join_order": ["t1"],
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"rows": 3,
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"cost": 0.010504815
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},
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{
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"attaching_conditions_to_tables": {
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"attached_conditions_computation": [],
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"attached_conditions_summary": [
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{
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"table": "t1",
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"attached_condition": null
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}
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]
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}
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},
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{
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"make_join_readinfo": []
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}
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]
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}
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}
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]
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} 0 0
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set optimizer_trace="enabled=off";
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change_user bar,,;
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select current_user();
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current_user()
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bar@%
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set optimizer_trace="enabled=on";
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select * from db1.v1;
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a
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1
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2
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3
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#
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# INSUFFICIENT PRIVILEGES should be set to 1
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# Trace and Query should be empty
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# Privileges for the underlying tables of the
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# view should also be present for the current user
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#
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select * from information_schema.OPTIMIZER_TRACE;
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QUERY TRACE MISSING_BYTES_BEYOND_MAX_MEM_SIZE INSUFFICIENT_PRIVILEGES
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0 1
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set optimizer_trace="enabled=off";
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change_user root,,;
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grant execute on function db1.f1 to 'foo'@'%';
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grant execute on function db1.f1 to 'bar'@'%';
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grant select on db1.t1 to 'bar'@'%';
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grant insert on db1.t2 to 'foo'@'%';
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change_user foo,,;
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select current_user();
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current_user()
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foo@%
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set optimizer_trace="enabled=on";
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select db1.f1(a) from db1.t1;
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db1.f1(a)
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2
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3
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4
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select INSUFFICIENT_PRIVILEGES from information_schema.OPTIMIZER_TRACE;
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INSUFFICIENT_PRIVILEGES
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0
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set optimizer_trace="enabled=off";
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change_user bar,,;
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select current_user();
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current_user()
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bar@%
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set optimizer_trace="enabled=on";
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#
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# The trace should be empty, because the current user
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# does not have INSERT privilege for table t2 which is
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# used in the function f1
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#
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select db1.f1(a) from db1.t1;
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db1.f1(a)
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2
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3
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4
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select * from information_schema.OPTIMIZER_TRACE;
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QUERY TRACE MISSING_BYTES_BEYOND_MAX_MEM_SIZE INSUFFICIENT_PRIVILEGES
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0 1
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set optimizer_trace="enabled=off";
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change_user root,,;
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select current_user();
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current_user()
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root@localhost
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REVOKE ALL PRIVILEGES, GRANT OPTION FROM foo;
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change_user root,,;
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drop user if exists foo;
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drop user if exists bar;
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drop table db1.t1, db1.t2;
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drop database db1;
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#
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# Privilege checking for optimizer trace across connections
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#
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connection default;
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create database db1;
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use db1;
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create table t1(a int);
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insert into t1 values (1),(2),(3);
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create table t2(a int);
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CREATE USER 'foo'@'localhost';
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CREATE USER 'bar'@'localhost';
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grant all on *.* to foo@localhost with grant option;
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grant all on *.* to bar@localhost with grant option;
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connect con_foo,localhost, foo,, db1;
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connection default;
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connect con_bar,localhost, bar,, db1;
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connection default;
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create definer=foo@localhost SQL SECURITY definer view db1.v1 as select * from db1.t1;
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create function f1 (a int) returns INT SQL SECURITY DEFINER
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BEGIN
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insert into t2 select * from t1;
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return a+1;
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END|
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grant execute on function f1 to bar@localhost;
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connection con_foo;
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set optimizer_trace='enabled=on';
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select * from db1.t1;
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a
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1
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2
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3
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#
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# Test that security context changes are allowed when, and only
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# when, invoker has all global privileges.
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#
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select query, INSUFFICIENT_PRIVILEGES from information_schema.OPTIMIZER_TRACE;
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query INSUFFICIENT_PRIVILEGES
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select * from db1.t1 0
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set optimizer_trace='enabled=off';
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connection con_bar;
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set optimizer_trace='enabled=on';
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select f1(a) from db1.t1;
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f1(a)
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2
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3
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4
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select query, INSUFFICIENT_PRIVILEGES from information_schema.OPTIMIZER_TRACE;
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query INSUFFICIENT_PRIVILEGES
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select f1(a) from db1.t1 0
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set optimizer_trace='enabled=off';
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connection default;
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revoke shutdown on *.* from foo@localhost;
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disconnect con_foo;
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connect con_foo, localhost, foo,, db1;
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connection con_foo;
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set optimizer_trace='enabled=on';
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select f1(a) from db1.t1;
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f1(a)
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2
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3
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4
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#
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# Test to check if invoker has all global privileges or not, only then
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# the security context changes are allowed. The user has been revoked
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# shutdown privilege so INSUFFICIENT PRIVILEGES should be set to 1.
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#
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select query, INSUFFICIENT_PRIVILEGES from information_schema.OPTIMIZER_TRACE;
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query INSUFFICIENT_PRIVILEGES
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1
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set optimizer_trace='enabled=off';
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connection default;
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disconnect con_foo;
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disconnect con_bar;
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select current_user();
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current_user()
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root@localhost
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select * from db1.v1;
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a
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1
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2
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3
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drop user foo@localhost, bar@localhost;
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drop view db1.v1;
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drop table db1.t1;
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drop database db1;
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set optimizer_trace="enabled=off";
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