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fileutil.go
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fileutil.go
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package utils
import (
"bufio"
"bytes"
"compress/gzip"
"crypto/md5"
"crypto/sha1"
"encoding/hex"
"fmt"
"github.com/pkg/errors"
"io"
"io/ioutil"
"log"
"os"
"path"
"path/filepath"
"sort"
"strings"
"time"
)
func PathExists(path string) (bool, error) {
_, err := os.Stat(path)
if err == nil {
return true, nil
}
if os.IsNotExist(err) {
return false, nil
}
return false, err
}
func GetFirstExistedFile(paths ...string) string {
res, _ := GetFirstExistedFileE(paths...)
return res
}
func GetFirstExistedFileE(paths ...string) (string, error) {
var (
existedFile string
)
for _, t := range paths {
r, err := PathExists(t)
if err != nil {
continue
}
// 如果是目录,跳过,进行下一个判断
if IsDir(t) {
continue
}
if !r {
continue
}
existedFile = t
break
}
if existedFile != "" {
return existedFile, nil
}
return "", Errorf("any path is not existed")
}
func GetFirstExistedPathE(paths ...string) (string, error) {
var (
existedFile string
)
for _, t := range paths {
r, err := PathExists(t)
if err != nil {
continue
}
if !r {
continue
}
existedFile = t
break
}
if existedFile != "" {
return existedFile, nil
}
return "", Errorf("any path is not existed")
}
func GetFirstExistedPath(paths ...string) string {
r, _ := GetFirstExistedPathE(paths...)
return r
}
func IsDir(path string) bool {
if info, err := os.Stat(path); err != nil {
return false
} else {
if info.IsDir() {
return true
}
return false
}
}
func IsFile(path string) bool {
if info, err := os.Stat(path); err != nil {
return false
} else {
if info.IsDir() {
return false
}
return true
}
}
func GetFirstExistedExecutablePath(paths ...string) string {
r, _ := GetFirstExistedPathE(paths...)
if r == "" {
return ""
}
stats, err := os.Stat(r)
if err != nil {
return ""
}
if stats.Mode()&0111 == 0 {
return ""
}
return r
}
func SaveFile(raw interface{}, filePath string) error {
fp, err := os.Create(filePath)
switch v := raw.(type) {
case []byte:
_, err = io.Copy(fp, bytes.NewReader(v))
case *gzip.Reader:
_, err = io.Copy(fp, v)
default:
return errors.Errorf("Type does not match.")
}
if err != nil {
return errors.Errorf("Write file error: %s", err)
}
return nil
}
func GetAllFiles(path string) (fileNames []string, err error) {
rd, err := ioutil.ReadDir(path)
for _, fi := range rd {
if !fi.IsDir() {
fileNames = append(fileNames, fi.Name())
}
}
return
}
func GetFileModTime(path string) int64 {
f, err := os.Open(path)
if err != nil {
log.Println("open file error")
return time.Now().Unix()
}
defer func() { _ = f.Close() }()
fi, err := f.Stat()
if err != nil {
log.Println("stat fileinfo error")
return time.Now().Unix()
}
return fi.ModTime().Unix()
}
func GetLatestFile(dir, suffix string) (filename string, err error) {
if dir == "" {
dir = "."
}
fileNames, err := GetAllFiles(dir)
if err != nil {
return "", errors.Errorf("cannot fetch files in dir(%s): %s", dir, err)
}
fileTimes := []int{}
fileTimesMap := map[int]string{}
for _, fileName := range fileNames {
if strings.HasSuffix(fileName, suffix) {
fileTime := int(GetFileModTime(path.Join(dir, fileName)))
fileTimes = append(fileTimes, fileTime)
fileTimesMap[fileTime] = fileName
}
}
if len(fileTimes) == 0 {
return "", errors.Errorf("cannot find file in %s", dir)
}
sort.Ints(fileTimes)
return fileTimesMap[fileTimes[len(fileTimes)-1]], nil
}
func GetFileMd5(filepath string) string {
var f *os.File
var err error
var md5Value string = ""
if _, err = os.Stat(filepath); err != nil {
return ""
}
if f, err = os.Open(filepath); err != nil {
return ""
}
md5h := md5.New()
io.Copy(md5h, f)
md5Value = hex.EncodeToString(md5h.Sum([]byte("")))
f.Close()
return md5Value
}
func CalcMd5(items ...interface{}) string {
e := fmt.Sprintf("%v", items)
md5Raw := md5.Sum([]byte(e))
return hex.EncodeToString(md5Raw[:])
}
func CalcSha1(items ...interface{}) string {
s := fmt.Sprintf("%v", items)
raw := sha1.Sum([]byte(s))
return hex.EncodeToString(raw[:])
}
func CalcSha1WithSuffix(items []interface{}, suffix string) string {
s := fmt.Sprintf("%v", items) + suffix
raw := sha1.Sum([]byte(s))
return hex.EncodeToString(raw[:])
}
func GetFileAbsPath(filePath string) (string, error) {
if filePath == "" {
return "", errors.Errorf(" empty file path")
}
absfilename, err := filepath.Abs(filepath.Dir(filePath))
if err != nil {
return "", err
}
absfilename = path.Join(absfilename, filepath.Base(filePath))
return absfilename, nil
}
func GetFileAbsDir(filePath string) (string, error) {
if filePath == "" {
return "", errors.Errorf(" empty file path")
}
absfilename, err := filepath.Abs(filepath.Dir(filePath))
if err != nil {
return "", err
}
return absfilename, nil
}
func ConvertTextFileToYakFuzztagByPath(file_bin_path string) (string, error) {
var ret string
file, err := os.Open(file_bin_path)
if err != nil {
return "", err
}
defer func() { _ = file.Close() }()
var fuzztagContentArr []string
scanner := bufio.NewScanner(file)
for scanner.Scan() {
line := scanner.Text()
if line == "" {
continue
}
fuzztagContentArr = append(fuzztagContentArr, line)
}
fuzztagContent := strings.Join(fuzztagContentArr, "|")
ret = fmt.Sprintf("{{array(%s)}}", fuzztagContent)
return ret, nil
}