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module github.com/dolthub/vitess | ||
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go 1.19 | ||
go 1.22 | ||
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require ( | ||
github.com/stretchr/testify v1.4.0 | ||
|
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// Copyright 2023 Dolthub, 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. | ||
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// +build linux | ||
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package mysql | ||
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import ( | ||
"fmt" | ||
"io/ioutil" | ||
"os" | ||
"syscall" | ||
"testing" | ||
"time" | ||
) | ||
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func TestStaticConfigHUP(t *testing.T) { | ||
tmpFile, err := ioutil.TempFile("", "mysql_auth_server_static_file.json") | ||
if err != nil { | ||
t.Fatalf("couldn't create temp file: %v", err) | ||
} | ||
defer os.Remove(tmpFile.Name()) | ||
oldStr := "str5" | ||
jsonConfig := fmt.Sprintf("{\"%s\":[{\"Password\":\"%s\"}]}", oldStr, oldStr) | ||
if err := ioutil.WriteFile(tmpFile.Name(), []byte(jsonConfig), 0600); err != nil { | ||
t.Fatalf("couldn't write temp file: %v", err) | ||
} | ||
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aStatic := NewAuthServerStatic(tmpFile.Name(), "", 0) | ||
defer aStatic.close() | ||
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if aStatic.getEntries()[oldStr][0].Password != oldStr { | ||
t.Fatalf("%s's Password should still be '%s'", oldStr, oldStr) | ||
} | ||
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hupTest(t, aStatic, tmpFile, oldStr, "str2") | ||
hupTest(t, aStatic, tmpFile, "str2", "str3") // still handling the signal | ||
} | ||
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func hupTest(t *testing.T, aStatic *AuthServerStatic, tmpFile *os.File, oldStr, newStr string) { | ||
jsonConfig := fmt.Sprintf("{\"%s\":[{\"Password\":\"%s\"}]}", newStr, newStr) | ||
if err := ioutil.WriteFile(tmpFile.Name(), []byte(jsonConfig), 0600); err != nil { | ||
t.Fatalf("couldn't overwrite temp file: %v", err) | ||
} | ||
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if aStatic.getEntries()[oldStr][0].Password != oldStr { | ||
t.Fatalf("%s's Password should still be '%s'", oldStr, oldStr) | ||
} | ||
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syscall.Kill(syscall.Getpid(), syscall.SIGHUP) | ||
time.Sleep(100 * time.Millisecond) // wait for signal handler | ||
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if aStatic.getEntries()[oldStr] != nil { | ||
t.Fatalf("Should not have old %s after config reload", oldStr) | ||
} | ||
if aStatic.getEntries()[newStr][0].Password != newStr { | ||
t.Fatalf("%s's Password should be '%s'", newStr, newStr) | ||
} | ||
} |
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/* | ||
Copyright 2022 The Vitess Authors. | ||
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. | ||
*/ | ||
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package mysql | ||
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import ( | ||
"encoding/binary" | ||
vtrpcpb "github.com/dolthub/vitess/go/vt/proto/vtrpc" | ||
"github.com/dolthub/vitess/go/vt/vterrors" | ||
"io" | ||
) | ||
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var ( | ||
// BinglogMagicNumber is 4-byte number at the beginning of every binary log | ||
BinglogMagicNumber = []byte{0xfe, 0x62, 0x69, 0x6e} | ||
readPacketErr = vterrors.Errorf(vtrpcpb.Code_INTERNAL, "error reading BinlogDumpGTID packet") | ||
) | ||
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const ( | ||
BinlogDumpNonBlock = 0x01 | ||
BinlogThroughPosition = 0x02 | ||
BinlogThroughGTID = 0x04 | ||
) | ||
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func (c *Conn) parseComBinlogDump(data []byte) (logFile string, binlogPos uint32, err error) { | ||
pos := 1 | ||
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binlogPos, pos, ok := readUint32(data, pos) | ||
if !ok { | ||
return logFile, binlogPos, readPacketErr | ||
} | ||
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pos += 2 // flags | ||
pos += 4 // server-id | ||
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logFile = string(data[pos:]) | ||
return logFile, binlogPos, nil | ||
} | ||
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func (c *Conn) parseComBinlogDumpGTID(data []byte) (logFile string, logPos uint64, position Position, err error) { | ||
// see https://dev.mysql.com/doc/internals/en/com-binlog-dump-gtid.html | ||
pos := 1 | ||
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flags := binary.LittleEndian.Uint16(data[pos : pos+2]) | ||
pos += 2 // flags | ||
pos += 4 // server-id | ||
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fileNameLen, pos, ok := readUint32(data, pos) | ||
if !ok { | ||
return logFile, logPos, position, readPacketErr | ||
} | ||
logFile = string(data[pos : pos+int(fileNameLen)]) | ||
pos += int(fileNameLen) | ||
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logPos, pos, ok = readUint64(data, pos) | ||
if !ok { | ||
return logFile, logPos, position, readPacketErr | ||
} | ||
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if flags&BinlogDumpNonBlock != 0 { | ||
return logFile, logPos, position, io.EOF | ||
} | ||
if flags&BinlogThroughGTID != 0 { | ||
dataSize, pos, ok := readUint32(data, pos) | ||
if !ok { | ||
return logFile, logPos, position, readPacketErr | ||
} | ||
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gtidBytes := data[pos : pos+int(dataSize)] | ||
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// NOTE: A MySQL 8.0 replica sends the GTID set as binary data, not as a human-readable string. | ||
// The main Vitess codebase was parsing a human-readable string and then using DecodePosition | ||
// to parse it, but that doesn't seem to actually work with real MySQL replicas, so we | ||
// diverge here from their implementation. | ||
gtidSet, err := NewMysql56GTIDSetFromSIDBlock(gtidBytes) | ||
if err != nil { | ||
return logFile, logPos, position, err | ||
} | ||
position = Position{ | ||
GTIDSet: gtidSet, | ||
} | ||
} | ||
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return logFile, logPos, position, nil | ||
} |
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