Initial QSfera import

Server/vendor/github.com/gookit/goutil/strutil/hash.go

@@ -0,0 +1,121 @@
+package strutil
+
+import (
+	"crypto/hmac"
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/hex"
+	"fmt"
+	"math/big"
+	"strings"
+
+	"github.com/gookit/goutil/byteutil"
+)
+
+// Md5 Generate a 32-bit md5 string
+func Md5(src any) string { return string(Md5Bytes(src)) }
+
+// MD5 Generate a 32-bit md5 string
+func MD5(src any) string { return Md5(src) }
+
+// GenMd5 Generate a 32-bit md5 string
+func GenMd5(src any) string { return Md5(src) }
+
+// Md5Simple md5 加密原始二进制的每个byte转为 base62，缩短长度(16)
+func Md5Simple(src any) string {
+	md5Bytes := byteutil.Md5Sum(src)
+	b62str := new(strings.Builder)
+	b62str.Grow(16)
+
+	// 直接将每个 byte 转为 base62 数字然后拼接
+	for _, b := range md5Bytes {
+		b62str.WriteByte(Base62Chars[b%0x3E])
+	}
+	return b62str.String()
+}
+
+// Md5Base62 md5 加密原始二进制的转为 base62 字符串，缩短长度(21~22)
+func Md5Base62(src any) string {
+	md5Bytes := byteutil.Md5Sum(src)
+
+	// Step 2: 将字节数组转为 big.Int
+	number := new(big.Int)
+	number.SetBytes(md5Bytes)
+
+	// Step 3: 转换为 Base62 字符串
+	base62 := new(strings.Builder)
+	// base62.Grow(22)
+	for number.Sign() > 0 {
+		remainder := new(big.Int)
+		number.DivMod(number, big.NewInt(62), remainder)
+		base62.WriteByte(Base62Chars[remainder.Int64()])
+	}
+
+	// 反转字符串以得到正确的顺序
+	runes := []rune(base62.String())
+	for i, j := 0, len(runes)-1; i < j; i, j = i+1, j-1 {
+		runes[i], runes[j] = runes[j], runes[i]
+	}
+
+	return string(runes)
+}
+
+// Md5Bytes Generate a 32-bit md5 bytes
+func Md5Bytes(src any) []byte { return byteutil.Md5(src) }
+
+// ShortMd5 Generate a 16-bit md5 string. remove the first 8 and last 8 bytes from 32-bit md5 string.
+func ShortMd5(src any) string { return string(byteutil.ShortMd5(src)) }
+
+//
+// ----------------------- Simple UUID -----------------------------
+//
+
+// UUIDv4 Generate a simple UUIDv4 string
+func UUIDv4() (string, error) {
+	b := make([]byte, 16)
+	if _, err := rand.Read(b); err != nil {
+		return "", fmt.Errorf("generate UUID fail: %w", err)
+	}
+
+	// 设置版本（4）和变体
+	b[6] = (b[6] & 0x0f) | 0x40 // Version 4
+	b[8] = (b[8] & 0x3f) | 0x80 // Variant 10
+
+	return fmt.Sprintf("%x-%x-%x-%x-%x", b[0:4], b[4:6], b[6:8], b[8:10], b[10:16]), nil
+}
+
+// ShortUUID Generate a short UUID (8 characters)
+func ShortUUID() string {
+	b := make([]byte, 4)
+	if _, err := rand.Read(b); err != nil {
+		return fmt.Sprintf("%04x", b)
+	}
+	return fmt.Sprintf("%08x", b)
+}
+
+//
+// ----------------------- hash password -----------------------------
+//
+
+// HashPasswd for quick hash an input password string
+func HashPasswd(pwd, key string) string {
+	hm := hmac.New(sha256.New, []byte(key))
+	hm.Write([]byte(pwd))
+
+	return hex.EncodeToString(hm.Sum(nil))
+}
+
+// VerifyPasswd for quick verify input password is valid
+//
+// - pwdMAC from db or config, generated by HashPasswd()
+func VerifyPasswd(pwdMAC, pwd, key string) bool {
+	decBts, err := hex.DecodeString(pwdMAC)
+	if err != nil {
+		return false
+	}
+
+	hm := hmac.New(sha256.New, []byte(key))
+	hm.Write([]byte(pwd))
+
+	return hmac.Equal(decBts, hm.Sum(nil))
+}