1.4.5.2

EdgeAPI/internal/db/utils/disk.go

@@ -0,0 +1,73 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package dbutils
+
+import (
+	"github.com/TeaOSLab/EdgeAPI/internal/goman"
+	"github.com/go-sql-driver/mysql"
+	"github.com/iwind/TeaGo/dbs"
+	"golang.org/x/sys/unix"
+	"time"
+)
+
+const minFreeSpaceGB = 3
+
+var HasFreeSpace = true
+var IsLocalDatabase = false
+var LocalDatabaseDataDir = ""
+
+func init() {
+	var ticker = time.NewTicker(5 * time.Minute)
+
+	dbs.OnReadyDone(func() {
+		goman.New(func() {
+			for range ticker.C {
+				HasFreeSpace = CheckHasFreeSpace()
+			}
+		})
+	})
+}
+
+// CheckHasFreeSpace 检查当前数据库是否有剩余空间
+func CheckHasFreeSpace() bool {
+	db, _ := dbs.Default()
+	if db == nil {
+		return false
+	}
+
+	config, _ := db.Config()
+	if config == nil {
+		return false
+	}
+
+	dsnConfig, _ := mysql.ParseDSN(config.Dsn)
+	if dsnConfig == nil {
+		return false
+	}
+
+	if IsLocalAddr(dsnConfig.Addr) {
+		IsLocalDatabase = true
+
+		// only for local database
+		one, err := db.FindOne("SHOW VARIABLES WHERE variable_name='datadir'")
+		if err != nil || len(one) == 0 {
+			return true
+		}
+
+		var dir = one.GetString("Value")
+		if len(dir) == 0 {
+			return true
+		}
+		LocalDatabaseDataDir = dir
+
+		var stat unix.Statfs_t
+		err = unix.Statfs(dir, &stat)
+		if err != nil {
+			return true
+		}
+
+		var availableSpace = (stat.Bavail * uint64(stat.Bsize)) / (1 << 30) // GB
+		return availableSpace > minFreeSpaceGB
+	}
+	return true
+}

EdgeAPI/internal/db/utils/disk_test.go

@@ -0,0 +1,14 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package dbutils_test
+
+import (
+	dbutils "github.com/TeaOSLab/EdgeAPI/internal/db/utils"
+	_ "github.com/iwind/TeaGo/bootstrap"
+	"testing"
+)
+
+func TestHasFreeSpace(t *testing.T) {
+	t.Log(dbutils.CheckHasFreeSpace())
+	t.Log(dbutils.LocalDatabaseDataDir)
+}

EdgeAPI/internal/db/utils/utils.go

@@ -0,0 +1,214 @@
+package dbutils
+
+import (
+	executils "github.com/TeaOSLab/EdgeAPI/internal/utils/exec"
+	"github.com/iwind/TeaGo/Tea"
+	"github.com/iwind/TeaGo/dbs"
+	"github.com/iwind/TeaGo/lists"
+	"github.com/iwind/TeaGo/logs"
+	"github.com/iwind/TeaGo/types"
+	"net"
+	"os"
+	"os/exec"
+	"regexp"
+	"strings"
+	"time"
+)
+
+// NewQuery 构造Query
+func NewQuery(tx *dbs.Tx, dao dbs.DAOWrapper, adminId int64, userId int64) *dbs.Query {
+	query := dao.Object().Query(tx)
+	if adminId > 0 {
+		//query.Attr("adminId", adminId)
+		query.Gt("adminId", 0)
+	}
+	if userId > 0 {
+		query.Attr("userId", userId)
+	}
+	return query
+}
+
+// QuoteLikeKeyword 处理关键词中的特殊字符
+func QuoteLikeKeyword(keyword string) string {
+	keyword = strings.ReplaceAll(keyword, "%", "\\%")
+	keyword = strings.ReplaceAll(keyword, "_", "\\_")
+	return keyword
+}
+
+func QuoteLike(keyword string) string {
+	return "%" + QuoteLikeKeyword(keyword) + "%"
+}
+
+func QuoteLikePrefix(keyword string) string {
+	return QuoteLikeKeyword(keyword) + "%"
+}
+
+func QuoteLikeSuffix(keyword string) string {
+	return "%" + QuoteLikeKeyword(keyword)
+}
+
+// SetGlobalVarMin 设置变量最小值
+func SetGlobalVarMin(db *dbs.DB, variableName string, minValue int) error {
+	result, err := db.FindOne("SHOW VARIABLES WHERE variable_name=?", variableName)
+	if err != nil {
+		return err
+	}
+	if len(result) == 0 {
+		return nil
+	}
+	var oldValue = result.GetInt("Value")
+	if oldValue > 0 /** 小于等于0通常表示不限制 **/ && oldValue < minValue {
+		_, err = db.Exec("SET GLOBAL "+variableName+"=?", minValue)
+		return err
+	}
+	return nil
+}
+
+// SetGlobalVarMax 设置变量最大值
+func SetGlobalVarMax(db *dbs.DB, variableName string, maxValue int) error {
+	result, err := db.FindOne("SHOW VARIABLES WHERE variable_name=?", variableName)
+	if err != nil {
+		return err
+	}
+	if len(result) == 0 {
+		return nil
+	}
+	var oldValue = result.GetInt("Value")
+	if oldValue > maxValue {
+		_, err = db.Exec("SET GLOBAL "+variableName+"=?", maxValue)
+		return err
+	}
+	return nil
+}
+
+// IsLocalAddr 是否为本地数据库
+func IsLocalAddr(addr string) bool {
+	var host = addr
+	if strings.Contains(addr, ":") {
+		host, _, _ = net.SplitHostPort(addr)
+		if len(host) == 0 {
+			host = addr
+		}
+	}
+
+	if host == "127.0.0.1" || host == "::1" || host == "localhost" {
+		return true
+	}
+
+	interfaceAddrs, _ := net.InterfaceAddrs()
+	for _, interfaceAddr := range interfaceAddrs {
+		if strings.HasPrefix(interfaceAddr.String(), host+"/") {
+			return true
+		}
+	}
+	return false
+}
+
+// MySQLVersion 读取当前MySQL版本
+func MySQLVersion() (version string, err error) {
+	db, err := dbs.Default()
+	if err != nil {
+		return "", err
+	}
+	result, err := db.FindCol(0, "SELECT VERSION()")
+	if err != nil {
+		return "", err
+	}
+	version = types.String(result)
+	var suffixIndex = strings.Index(version, "-")
+	if suffixIndex > 0 {
+		version = version[:suffixIndex]
+	}
+	return
+}
+
+func MySQLVersionFrom8() (bool, error) {
+	version, err := MySQLVersion()
+	if err != nil {
+		return false, err
+	}
+	if len(version) == 0 {
+		return false, nil
+	}
+	var dotIndex = strings.Index(version, ".")
+	if dotIndex > 0 {
+		return types.Int(version[:dotIndex]) >= 8, nil
+	}
+	return false, nil
+}
+
+// FindMySQLPath find out mysqld_safe path from system processes
+func FindMySQLPath() string {
+	psExe, err := executils.LookPath("ps")
+	if err != nil {
+		return ""
+	}
+	var cmd = executils.NewTimeoutCmd(3*time.Second, psExe, "-ef").
+		WithStdout().
+		WithStderr()
+	err = cmd.Run()
+	if err != nil {
+		return ""
+	}
+	var reg = regexp.MustCompile(`\s(/\S+/mysqld_safe)\s`)
+	var matches = reg.FindStringSubmatch(cmd.Stdout())
+	if len(matches) > 1 {
+		var path = matches[1]
+		_, err = os.Stat(path)
+		if err != nil {
+			return ""
+		}
+		return path
+	}
+	return ""
+}
+
+// FindMySQLPathAndRemember find out mysqld_safe path then remember it for future usage
+func FindMySQLPathAndRemember() {
+	var path = FindMySQLPath()
+	if len(path) == 0 {
+		return
+	}
+
+	var cacheFile = Tea.Root + "/data/mysql-path.cache"
+	_ = os.WriteFile(cacheFile, []byte(path), 0666) // ignore error
+}
+
+// StartLocalMySQL try to start local mysql server
+func StartLocalMySQL() {
+	// possible installed paths
+	var mysqldSafeFiles = []string{}
+
+	// read last path from cache file
+	var cacheFile = Tea.Root + "/data/mysql-path.cache"
+	cacheData, err := os.ReadFile(cacheFile)
+	if err == nil && len(cacheData) > 0 {
+		mysqldSafeFiles = append(mysqldSafeFiles, string(cacheData))
+	}
+
+	// from $PATH variable
+	exePath, lookErr := executils.LookPath("mysqld_safe")
+	if lookErr == nil && len(exePath) > 0 && !lists.ContainsString(mysqldSafeFiles, exePath) {
+		mysqldSafeFiles = append(mysqldSafeFiles, exePath)
+	}
+
+	// these installed by edge-boot or foolish-mysql
+	for _, path := range []string{
+		"/usr/local/mysql/bin/mysqld_safe",
+		"/usr/local/mysql8/bin/mysqld_safe",
+	} {
+		if !lists.ContainsString(mysqldSafeFiles, path) {
+			mysqldSafeFiles = append(mysqldSafeFiles, path)
+		}
+	}
+
+	for _, mysqldSafeFile := range mysqldSafeFiles {
+		_, err := os.Stat(mysqldSafeFile)
+		if err == nil {
+			logs.Println("[API_NODE]try to start local mysql server from '" + mysqldSafeFile + "' ...")
+			var mysqlCmd = exec.Command(mysqldSafeFile)
+			_ = mysqlCmd.Start()
+			break
+		}
+	}
+}

EdgeAPI/internal/db/utils/utils_test.go

@@ -0,0 +1,45 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package dbutils_test
+
+import (
+	dbutils "github.com/TeaOSLab/EdgeAPI/internal/db/utils"
+	"github.com/iwind/TeaGo/assert"
+	"testing"
+)
+
+func TestQuoteLike(t *testing.T) {
+	for _, s := range []string{"abc", "abc%", "_abc%%%"} {
+		t.Log(s + " => " + dbutils.QuoteLike(s))
+	}
+}
+
+func TestIsLocalAddr(t *testing.T) {
+	var a = assert.NewAssertion(t)
+	a.IsTrue(dbutils.IsLocalAddr("127.0.0.1"))
+	a.IsTrue(dbutils.IsLocalAddr("localhost"))
+	a.IsTrue(dbutils.IsLocalAddr("::1"))
+	a.IsTrue(dbutils.IsLocalAddr("127.0.0.1:3306"))
+	a.IsFalse(dbutils.IsLocalAddr("192.168.2.200"))
+	a.IsFalse(dbutils.IsLocalAddr("192.168.2.200:3306"))
+}
+
+func TestMySQLVersion(t *testing.T) {
+	version, err := dbutils.MySQLVersion()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("version:", version)
+}
+
+func TestMySQLVersionFrom8(t *testing.T) {
+	t.Log(dbutils.MySQLVersionFrom8())
+}
+
+func TestFindMySQLPath(t *testing.T) {
+	t.Log(dbutils.FindMySQLPath())
+}
+
+func TestStartLocalMySQL(t *testing.T) {
+	dbutils.StartLocalMySQL()
+}