update

helper.go

@@ -1,9 +1,12 @@
 package main
 
 import (
+	"crypto/sha1"
 	"crypto/sha256"
 	"fmt"
 	"io"
+	"io/ioutil"
+	"path"
 	"regexp"
 )
 
@@ -26,6 +29,28 @@ func VerifyPasswd(origin, name, input string) bool {
 	return origin == EncryptPasswd(name, input)
 }
 
+func SHA1(data []byte) [sha1.Size]byte {
+	return sha1.Sum(data)
+}
+
+func ReadDir(dir string, filter func(name string) bool) (files []string) {
+	fis, err := ioutil.ReadDir(dir)
+	if err != nil {
+		return
+	}
+	for _, fi := range fis {
+		if filter(fi.Name()) {
+			continue
+		}
+		if fi.IsDir() {
+			files = append(files, ReadDir(path.Join(dir, fi.Name()), filter)...)
+			continue
+		}
+		files = append(files, path.Join(dir, fi.Name()))
+	}
+	return
+}
+
 func IgnoreHtmlTag(src string) string {
 	//去除所有尖括号内的HTML代码
 	re, _ := regexp.Compile("\\<[\\S\\s]+?\\>")