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pkg/util/crypto.go

@@ -0,0 +1,19 @@
+package util
+
+import (
+	"crypto/md5"
+	"fmt"
+	"ripper/pkg/crypto"
+)
+
+// CheckPassword 用于将用户输入的密码与数据库取出的密码进行比对
+func CheckPassword(PlainText, SecretKey, CipherText string) bool {
+	chK, _ := crypto.AesEcrypt([]byte(PlainText), []byte(SecretKey))
+	return fmt.Sprintf("%x", md5.Sum(chK)) == CipherText
+}
+
+// CreatePassword 用于将用户输入的密码进行加密
+func CreatePassword(SecretKey, PlainText string) string {
+	chK, _ := crypto.AesEcrypt([]byte(PlainText), []byte(SecretKey))
+	return fmt.Sprintf("%x", md5.Sum(chK))
+}

pkg/util/encrypt.go

@@ -0,0 +1,63 @@
+package util
+
+import (
+	"encoding/base64"
+	"regexp"
+	"strconv"
+	"strings"
+)
+
+// EmojiEncode Emoji表情转码
+func EmojiDecode(s string) string {
+	//emoji表情的数据表达式
+	var re *regexp.Regexp
+	var reg *regexp.Regexp
+	var src []string
+	re = regexp.MustCompile("\\[[\\\\u0-9a-zA-Z]")
+	//提取emoji数据表达式
+	reg = regexp.MustCompile("\\[\\\\u|]")
+	src = re.FindAllString(s, -1)
+	for i := 0; i < len(src); i++ {
+		var e = reg.ReplaceAllString(src[i], "")
+		var p, err = strconv.ParseInt(e, 16, 32)
+		if err == nil {
+			s = strings.Replace(s, src[i], string(rune(p)), -1)
+		}
+	}
+	return s
+}
+
+// 表情转换
+func EmojiCode(s string) string {
+	var ret string
+	var rs []rune
+	rs = []rune(s)
+
+	for i := 0; i < len(rs); i++ {
+		if len(string(rs[i])) == 4 {
+			ret += `[\u` + strconv.FormatInt(int64(rs[i]), 16) + `]`
+		} else {
+			ret += string(rs[i])
+		}
+	}
+	return ret
+}
+
+// BaseEncode Base64编码
+func BaseEncode(s string) string {
+	data := []byte(s)
+	dst := make([]byte, base64.StdEncoding.EncodedLen(len(data)))
+	base64.StdEncoding.Encode(dst, data)
+	return string(dst)
+}
+
+// BaseDecode Base64解码
+func BaseDecode(s string) string {
+	data := []byte(s)
+	dst := make([]byte, base64.StdEncoding.DecodedLen(len(data)))
+	n, err := base64.StdEncoding.Decode(dst, data)
+	if err != nil {
+		return ""
+	}
+	return string(dst[:n])
+}

pkg/util/memory.go

@@ -0,0 +1,9 @@
+package util
+
+import "unsafe"
+
+func DeepCoyp(s string) string {
+	b := make([]byte, len(s))
+	copy(b, s)
+	return *(*string)(unsafe.Pointer(&b))
+}

pkg/util/misc.go

@@ -0,0 +1,50 @@
+package util
+
+import (
+	"github.com/gofrs/uuid"
+	"math/rand"
+	"time"
+	"unsafe"
+)
+
+// Ifs 三目运算的函数
+func Ifs[T any](a bool, b, c T) T {
+	if a {
+		return b
+	}
+	return c
+}
+
+func GetUUID() (string, error) {
+	u2, err := uuid.NewV4()
+	return u2.String(), err
+}
+
+const letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+
+var src = rand.NewSource(time.Now().UnixNano())
+
+const (
+	// 6 bits to represent a letter index
+	letterIdBits = 6
+	// All 1-bits as many as letterIdBits
+	letterIdMask = 1<<letterIdBits - 1
+	letterIdMax  = 63 / letterIdBits
+)
+
+func RandomStr(n int) string {
+	b := make([]byte, n)
+	// A rand.Int63() generates 63 random bits, enough for letterIdMax letters!
+	for i, cache, remain := n-1, src.Int63(), letterIdMax; i >= 0; {
+		if remain == 0 {
+			cache, remain = src.Int63(), letterIdMax
+		}
+		if idx := int(cache & letterIdMask); idx < len(letters) {
+			b[i] = letters[idx]
+			i--
+		}
+		cache >>= letterIdBits
+		remain--
+	}
+	return *(*string)(unsafe.Pointer(&b))
+}