-
Notifications
You must be signed in to change notification settings - Fork 26
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Signed-off-by: Ping Yu <yuping@pingcap.com>
- Loading branch information
Showing
10 changed files
with
220 additions
and
8 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
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 +1,111 @@ | ||
| // Copyright 2023 PingCAP, 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, | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package util | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "errors" | ||
| "fmt" | ||
| "io/ioutil" | ||
| "regexp" | ||
|
|
||
| "github.com/pingcap/kvproto/pkg/cdcpb" | ||
| "golang.org/x/net/html/charset" | ||
| ) | ||
|
|
||
| type FilterConfig struct { | ||
| KeyFormat string `toml:"key-format" json:"key-format"` | ||
| KeyPrefix string `toml:"key-prefix" json:"key-prefix"` | ||
| KeyPattern string `toml:"key-pattern" json:"key-pattern"` | ||
| ValuePattern string `toml:"value-pattern" json:"value-pattern"` | ||
| } | ||
|
|
||
| func (c *FilterConfig) Validate() error { | ||
| if c.KeyPrefix != "" { | ||
| if _, err := ParseKey(c.KeyFormat, c.KeyPrefix); err != nil { | ||
| return errors.New(fmt.Sprintf("invalid key-prefix: %s", err.Error())) | ||
| } | ||
| } | ||
| if c.KeyPattern != "" { | ||
| if _, err := regexp.Compile(c.KeyPattern); err != nil { | ||
| return errors.New(fmt.Sprintf("invalid key-pattern: %s", err.Error())) | ||
| } | ||
| } | ||
|
|
||
| if c.ValuePattern != "" { | ||
| if _, err := regexp.Compile(c.ValuePattern); err != nil { | ||
| return errors.New(fmt.Sprintf("invalid value-pattern: %s", err.Error())) | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| type Filter struct { | ||
| keyPrefix []byte | ||
| keyPattern *regexp.Regexp | ||
| valuePattern *regexp.Regexp | ||
| } | ||
|
|
||
| func CreateFilter(conf *FilterConfig) Filter { | ||
| var ( | ||
| keyPrefix []byte | ||
| keyPattern *regexp.Regexp | ||
| valuePattern *regexp.Regexp | ||
| ) | ||
|
|
||
| if conf.KeyPrefix != "" { | ||
| keyPrefix, _ = ParseKey(conf.KeyFormat, conf.KeyPrefix) | ||
| } | ||
| if conf.KeyPattern != "" { | ||
| keyPattern = regexp.MustCompile(conf.KeyPattern) | ||
| } | ||
| if conf.ValuePattern != "" { | ||
| valuePattern = regexp.MustCompile(conf.ValuePattern) | ||
| } | ||
|
|
||
| return Filter{ | ||
| keyPrefix: keyPrefix, | ||
| keyPattern: keyPattern, | ||
| valuePattern: valuePattern, | ||
| } | ||
| } | ||
|
|
||
| func (f *Filter) EventMatch(entry *cdcpb.Event_Row) bool { | ||
| // Filter on put & delete only. | ||
| if entry.GetOpType() != cdcpb.Event_Row_DELETE && entry.GetOpType() != cdcpb.Event_Row_PUT { | ||
| return true | ||
| } | ||
|
|
||
| if len(f.keyPrefix) > 0 && !bytes.HasPrefix(entry.Key, f.keyPrefix) { | ||
| return false | ||
| } | ||
| if f.keyPattern != nil && !f.keyPattern.MatchString(ConvertToUTF8(entry.Key, "latin1")) { | ||
| return false | ||
| } | ||
| if entry.GetOpType() == cdcpb.Event_Row_PUT && | ||
| f.valuePattern != nil && | ||
| !f.valuePattern.MatchString(ConvertToUTF8(entry.GetValue(), "latin1")) { | ||
| return false | ||
| } | ||
|
|
||
| return true | ||
| } | ||
|
|
||
| func ConvertToUTF8(strBytes []byte, origEncoding string) string { | ||
| byteReader := bytes.NewReader(strBytes) | ||
| reader, _ := charset.NewReaderLabel(origEncoding, byteReader) | ||
| strBytes, _ = ioutil.ReadAll(reader) | ||
| return string(strBytes) | ||
| } |
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 +1,42 @@ | ||
| // Copyright 2023 PingCAP, 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, | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package util | ||
|
|
||
| import ( | ||
| "testing" | ||
|
|
||
| "github.com/stretchr/testify/require" | ||
| ) | ||
|
|
||
| func TestFilterConfig(t *testing.T) { | ||
| t.Parallel() | ||
| conf := FilterConfig{} | ||
| require.Nil(t, conf.Validate()) | ||
|
|
||
| conf = FilterConfig{} | ||
| conf.KeyFormat = "escaped" | ||
| conf.KeyPrefix = `prefix\x11` | ||
| conf.KeyPattern = `key\x00pattern` | ||
| conf.ValuePattern = `value\ffpattern` | ||
| require.Nil(t, conf.Validate()) | ||
|
|
||
| conf = FilterConfig{} | ||
| conf.KeyPattern = "\xfd\xe2" // invalid utf8 | ||
| require.Error(t, conf.Validate()) | ||
|
|
||
| conf = FilterConfig{} | ||
| conf.KeyFormat = "hex" | ||
| conf.KeyPrefix = "zz" // invalid utf8 | ||
| require.Error(t, conf.Validate()) | ||
| } |