-
Notifications
You must be signed in to change notification settings - Fork 46
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
feat: support rate limit filter (#224)
* feat: support rate limit filter * fix: format error log
- Loading branch information
1 parent
606ebc7
commit 8d6877d
Showing
9 changed files
with
264 additions
and
5 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,151 @@ | ||
/* | ||
* Copyright 2022 CECTC, Inc. | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
|
||
package rate | ||
|
||
import ( | ||
"context" | ||
"encoding/json" | ||
|
||
"github.com/pkg/errors" | ||
"go.uber.org/ratelimit" | ||
|
||
"github.com/cectc/dbpack/pkg/constant" | ||
"github.com/cectc/dbpack/pkg/filter" | ||
"github.com/cectc/dbpack/pkg/log" | ||
"github.com/cectc/dbpack/pkg/proto" | ||
"github.com/cectc/dbpack/third_party/parser/ast" | ||
) | ||
|
||
const ( | ||
rateLimiterFilter = "RateLimiterFilter" | ||
) | ||
|
||
type _factory struct{} | ||
|
||
func (factory *_factory) NewFilter(config map[string]interface{}) (proto.Filter, error) { | ||
var ( | ||
err error | ||
content []byte | ||
conf *LimiterFilterConfig | ||
insertLimiter ratelimit.Limiter | ||
updateLimiter ratelimit.Limiter | ||
deleteLimiter ratelimit.Limiter | ||
selectLimiter ratelimit.Limiter | ||
) | ||
if content, err = json.Marshal(config); err != nil { | ||
return nil, errors.Wrap(err, "marshal rate limit filter config failed.") | ||
} | ||
if err = json.Unmarshal(content, &conf); err != nil { | ||
log.Errorf("unmarshal rate limit filter failed, %v", err) | ||
return nil, err | ||
} | ||
if conf.InsertLimit != 0 { | ||
insertLimiter = ratelimit.New(conf.InsertLimit) | ||
} | ||
if conf.UpdateLimit != 0 { | ||
updateLimiter = ratelimit.New(conf.UpdateLimit) | ||
} | ||
if conf.DeleteLimit != 0 { | ||
deleteLimiter = ratelimit.New(conf.DeleteLimit) | ||
} | ||
if conf.SelectLimit != 0 { | ||
selectLimiter = ratelimit.New(conf.SelectLimit) | ||
} | ||
return &_filter{ | ||
insertLimiter: insertLimiter, | ||
updateLimiter: updateLimiter, | ||
deleteLimiter: deleteLimiter, | ||
selectLimiter: selectLimiter, | ||
}, nil | ||
} | ||
|
||
type LimiterFilterConfig struct { | ||
InsertLimit int `yaml:"insert_limit" json:"insert_limit"` | ||
UpdateLimit int `yaml:"update_limit" json:"update_limit"` | ||
DeleteLimit int `yaml:"delete_limit" json:"delete_limit"` | ||
SelectLimit int `yaml:"select_limit" json:"select_limit"` | ||
} | ||
|
||
type _filter struct { | ||
insertLimiter ratelimit.Limiter | ||
updateLimiter ratelimit.Limiter | ||
deleteLimiter ratelimit.Limiter | ||
selectLimiter ratelimit.Limiter | ||
} | ||
|
||
func (f *_filter) GetKind() string { | ||
return rateLimiterFilter | ||
} | ||
|
||
func (f *_filter) PreHandle(ctx context.Context) error { | ||
commandType := proto.CommandType(ctx) | ||
switch commandType { | ||
case constant.ComQuery: | ||
stmt := proto.QueryStmt(ctx) | ||
switch stmt.(type) { | ||
case *ast.InsertStmt: | ||
if f.insertLimiter != nil { | ||
f.insertLimiter.Take() | ||
} | ||
case *ast.UpdateStmt: | ||
if f.updateLimiter != nil { | ||
f.updateLimiter.Take() | ||
} | ||
case *ast.DeleteStmt: | ||
if f.deleteLimiter != nil { | ||
f.deleteLimiter.Take() | ||
} | ||
case *ast.SelectStmt: | ||
if f.selectLimiter != nil { | ||
f.selectLimiter.Take() | ||
} | ||
default: | ||
return nil | ||
} | ||
|
||
case constant.ComStmtExecute: | ||
stmt := proto.PrepareStmt(ctx) | ||
if stmt == nil { | ||
return errors.New("prepare stmt should not be nil") | ||
} | ||
switch stmt.StmtNode.(type) { | ||
case *ast.InsertStmt: | ||
if f.insertLimiter != nil { | ||
f.insertLimiter.Take() | ||
} | ||
case *ast.UpdateStmt: | ||
if f.updateLimiter != nil { | ||
f.updateLimiter.Take() | ||
} | ||
case *ast.DeleteStmt: | ||
if f.deleteLimiter != nil { | ||
f.deleteLimiter.Take() | ||
} | ||
case *ast.SelectStmt: | ||
if f.selectLimiter != nil { | ||
f.selectLimiter.Take() | ||
} | ||
default: | ||
return nil | ||
} | ||
} | ||
return nil | ||
} | ||
|
||
func init() { | ||
filter.RegistryFilterFactory(rateLimiterFilter, &_factory{}) | ||
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,104 @@ | ||
/* | ||
* Copyright 2022 CECTC, Inc. | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
|
||
package rate | ||
|
||
import ( | ||
"context" | ||
"strings" | ||
"testing" | ||
"time" | ||
|
||
"github.com/stretchr/testify/assert" | ||
|
||
"github.com/cectc/dbpack/pkg/constant" | ||
"github.com/cectc/dbpack/pkg/proto" | ||
"github.com/cectc/dbpack/pkg/visitor" | ||
"github.com/cectc/dbpack/third_party/parser" | ||
) | ||
|
||
func TestRateLimiter(t *testing.T) { | ||
testCases := []string{ | ||
"insert_limit", | ||
"update_limit", | ||
"delete_limit", | ||
"select_limit", | ||
} | ||
testSQLs := []string{ | ||
"insert into student (id, name, age) values (1, 'scott', 28)", | ||
"update student set age = 30 where id = 1", | ||
"delete from student where id = 1", | ||
"select id, name, age from student where id = 1", | ||
} | ||
for _, tc := range testCases { | ||
for _, sql := range testSQLs { | ||
t.Run(strings.Join([]string{tc, sql}, "_"), func(t *testing.T) { | ||
p := parser.New() | ||
stmt, err := p.ParseOneStmt(sql, "", "") | ||
assert.Nil(t, err) | ||
stmt.Accept(&visitor.ParamVisitor{}) | ||
|
||
ctx := proto.WithCommandType(context.Background(), constant.ComQuery) | ||
ctx = proto.WithQueryStmt(ctx, stmt) | ||
|
||
filter, err := (&_factory{}).NewFilter(map[string]interface{}{ | ||
tc: 1, | ||
}) | ||
assert.Nil(t, err) | ||
f := filter.(proto.DBPreFilter) | ||
|
||
for i := 0; i < 10; i++ { | ||
err := f.PreHandle(ctx) | ||
assert.Nil(t, err) | ||
t.Log(time.Now()) | ||
} | ||
}) | ||
} | ||
} | ||
|
||
testSQLs = []string{ | ||
"insert into student (id, name, age) values (?, ?, ?)", | ||
"update student set age = ? where id = ?", | ||
"delete from student where id = ?", | ||
"select id, name, age from student where id = ?", | ||
} | ||
for _, tc := range testCases { | ||
for _, sql := range testSQLs { | ||
t.Run(strings.Join([]string{tc, sql}, "_"), func(t *testing.T) { | ||
p := parser.New() | ||
stmt, err := p.ParseOneStmt(sql, "", "") | ||
assert.Nil(t, err) | ||
stmt.Accept(&visitor.ParamVisitor{}) | ||
|
||
protoStmt := &proto.Stmt{StmtNode: stmt} | ||
ctx := proto.WithCommandType(context.Background(), constant.ComStmtExecute) | ||
ctx = proto.WithPrepareStmt(ctx, protoStmt) | ||
|
||
filter, err := (&_factory{}).NewFilter(map[string]interface{}{ | ||
tc: 1, | ||
}) | ||
assert.Nil(t, err) | ||
f := filter.(proto.DBPreFilter) | ||
|
||
for i := 0; i < 10; i++ { | ||
err := f.PreHandle(ctx) | ||
assert.Nil(t, err) | ||
t.Log(time.Now()) | ||
} | ||
}) | ||
} | ||
} | ||
} |