fix parse mysql dsn addr

pkg/database/sql/sql.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"database/sql"
 	"fmt"
-	"strings"
 	"sync/atomic"
 	"time"
 
@@ -13,6 +12,7 @@ import (
 	"github.com/bilibili/kratos/pkg/net/netutil/breaker"
 	"github.com/bilibili/kratos/pkg/net/trace"
 
+	"github.com/go-sql-driver/mysql"
 	"github.com/pkg/errors"
 )
 
@@ -660,17 +660,12 @@ func (tx *Tx) Prepare(query string) (*Stmt, error) {
 
 // parseDSNAddr parse dsn name and return addr.
 func parseDSNAddr(dsn string) (addr string) {
-	if dsn == "" {
+	cfg, err := mysql.ParseDSN(dsn)
-		return
+	if err != nil {
+		// just ignore parseDSN error, mysql client will return error for us when connect.
+		return ""
 	}
-	part0 := strings.Split(dsn, "@")
+	return cfg.Addr
-	if len(part0) > 1 {
-		part1 := strings.Split(part0[1], "?")
-		if len(part1) > 0 {
-			addr = part1[0]
-		}
-	}
-	return
 }
 
 func slowLog(statement string, now time.Time) {

pkg/database/sql/sql_test.go

@@ -0,0 +1,18 @@
+package sql
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestParseAddrDSN(t *testing.T) {
+	t.Run("test parse addr dsn", func(t *testing.T) {
+		addr := parseDSNAddr("test:test@tcp(172.16.0.148:3306)/test?timeout=5s&readTimeout=5s&writeTimeout=5s&parseTime=true&loc=Local&charset=utf8")
+		assert.Equal(t, "172.16.0.148:3306", addr)
+	})
+	t.Run("test password has @", func(t *testing.T) {
+		addr := parseDSNAddr("root:root@dev@tcp(1.2.3.4:3306)/abc?timeout=1s&readTimeout=1s&writeTimeout=1s&parseTime=true&loc=Local&charset=utf8mb4,utf8")
+		assert.Equal(t, "1.2.3.4:3306", addr)
+	})
+}