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v0.1.0
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53330ceab9
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28
README.md
28
README.md
@@ -23,24 +23,30 @@ Golang 中可以使用的常用辅助功能工具箱。主要配备以下功能
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- [x] Key 导入与导出
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- [x] RSA 签名算法
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- 散列及校验和算法。
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- [x] Sha512 散列算法
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- [x] Sha256 散列算法
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- [x] Sha1 散列算法
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- [x] MD5 散列算法
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- [x] CRC8 校验和算法
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- [x] CRC16 校验和算法
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- [x] CRC32 校验和算法
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- [x] CRC64 校验和算法
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- [x] pHash 图像感知算法
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- [x] Sha512 散列算法(便捷封装)
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- [x] Sha256 散列算法(便捷封装)
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- [x] Sha1 散列算法(便捷封装)
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- [x] MD5 散列算法(便捷封装)
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- [x] CRC8 校验和算法(便捷封装)
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- [x] CRC16 校验和算法(便捷封装)
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- [x] CRC32 校验和算法(便捷封装)
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- [x] CRC64 校验和算法(便捷封装)
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- [x] pHash 图像感知算法(便捷封装)
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- [ ] BLAKE2 校验和算法(便捷封装)
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- [ ] BLAKE3 校验和算法(便捷封装)
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- [ ] BlockHash 散列算法
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- 唯一序列号生成器
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- [x] 冰雹 ID 生成器(短主机精简日期版雪花 ID)
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- [x] UUID 生成器
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- [x] 冰雹 ID 生成器(短主机精简日期版雪花 ID)
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- [x] UUIDv4 生成器
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- [x] UUIDv7 生成器(自定义时间戳分布式版本)
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- [x] UUIDv7 比较及排序
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- [x] 基于 Base36 的 short UUIDv7 转换器
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- [x] short UUID 生成器
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- 验证码生成器
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- [x] 随机验证码生成算法
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- 序列化算法
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- [x] Base64 算法
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- [x] Base36 算法
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- [x] Hex 直转
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- 常用工具函数
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- [ ] 日期时间函数
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@@ -41,8 +41,8 @@ func Encrypt(data []byte, key []byte, padding encryption.PaddingMode, keyGenerat
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}
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iv := keyBytes[:]
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cipherText := make([]byte, len(data))
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plainText := encryption.Padding(data, block.BlockSize(), padding)
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cipherText := make([]byte, len(plainText))
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mode := cipher.NewCBCEncrypter(block, iv)
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mode.CryptBlocks(cipherText, plainText)
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@@ -37,6 +37,9 @@ func Unpadding(data []byte, padding ...PaddingMode) []byte {
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case PKCS7Padding:
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length := len(data)
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unpadding := int(data[length-1])
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if length-unpadding < 0 {
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return make([]byte, 0)
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}
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return data[:(length - unpadding)]
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case NoPadding:
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return data
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@@ -13,6 +13,13 @@ import (
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"archgrid.xyz/ag/toolsbox/serialize/base64"
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)
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type Strength int
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const (
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Compatible Strength = iota
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Enhanced
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)
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// 根据给定的密钥字符串生成加解密使用的密钥。
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func generateKey(key string) []byte {
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keyBytes := sha512.Sha512([]byte(key))
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@@ -20,10 +27,16 @@ func generateKey(key string) []byte {
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}
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// 对给定的数据进行加密。
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func Encrypt(data string) (string, error) {
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func Encrypt(data string, strength ...Strength) (string, error) {
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var ivGen aes.IVGenerator
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if append(strength, Enhanced)[0] == Compatible {
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ivGen = aes.PrefixIVGenerator
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} else {
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ivGen = aes.XorIVGenerator
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}
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key := verifyCode.RandStr(20)
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keyBytes := generateKey(key)
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cipherData, err := aes.Encrypt([]byte(data), keyBytes, encryption.PKCS7Padding)
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cipherData, err := aes.Encrypt([]byte(data), keyBytes, encryption.PKCS7Padding, ivGen)
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if err != nil {
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return "", fmt.Errorf("加密计算失败,%w", err)
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}
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@@ -35,7 +48,13 @@ func Encrypt(data string) (string, error) {
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}
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// 对给定的数据进行解密。
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func Decrypt(data string) (string, error) {
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func Decrypt(data string, strength ...Strength) (string, error) {
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var ivGen aes.IVGenerator
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if append(strength, Enhanced)[0] == Compatible {
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ivGen = aes.PrefixIVGenerator
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} else {
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ivGen = aes.XorIVGenerator
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}
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if message, found := strings.CutPrefix(data, "["); found {
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if len(message) > 20 {
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keySeed := message[:20]
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@@ -44,7 +63,7 @@ func Decrypt(data string) (string, error) {
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if err != nil {
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return "", fmt.Errorf("密文损坏无法解析,%w", err)
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}
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plainText, err := aes.Decrypt(cipherData, key, encryption.PKCS7Padding)
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plainText, err := aes.Decrypt(cipherData, key, encryption.PKCS7Padding, ivGen)
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if err != nil {
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return "", fmt.Errorf("密文解密计算失败,%w", err)
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}
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@@ -10,18 +10,28 @@ import (
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"github.com/howeyc/crc16"
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)
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type CRC16Mode int
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const (
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CCITT CRC16Mode = iota
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CCITT_FALSE
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SCSI
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IBM
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MBUS
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)
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// 根据给定的校验表类型生成对应的校验器
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func hasherSelect(table string) crc16.Hash16 {
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switch table {
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case "CCITT":
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func hasherSelect(mdoe CRC16Mode) crc16.Hash16 {
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switch mdoe {
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case CCITT:
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return crc16.NewCCITT()
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case "CCITT-FALSE":
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case CCITT_FALSE:
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return crc16.New(crc16.MakeTable(crc16.CCITTFalse))
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case "SCSI":
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case SCSI:
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return crc16.NewSCSI()
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case "IBM":
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case IBM:
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return crc16.NewIBM()
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case "MBUS":
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case MBUS:
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return crc16.New(crc16.MakeTable(crc16.MBUS))
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default:
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return crc16.NewIBM()
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@@ -29,27 +39,27 @@ func hasherSelect(table string) crc16.Hash16 {
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}
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// 计算给定字节数组的CRC16校验和,返回字节数组
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func CRC16(data []byte, table ...string) []byte {
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crcTable := append(table, "IBM")
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func CRC16(data []byte, mode ...CRC16Mode) []byte {
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crcTable := append(mode, IBM)
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hasher := hasherSelect(crcTable[0])
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hasher.Write(data)
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return hasher.Sum(nil)
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}
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// 计算给定字节数组的CRC16校验和,返回十六进制字符串
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func CRC16Hex(data []byte, table ...string) string {
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return hex.EncodeToString(CRC16(data, table...))
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func CRC16Hex(data []byte, mode ...CRC16Mode) string {
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return hex.EncodeToString(CRC16(data, mode...))
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}
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// 计算指定文件的CRC16校验和,返回字节数组
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func SumFile(file string, table ...string) ([]byte, error) {
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func SumFile(file string, mode ...CRC16Mode) ([]byte, error) {
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f, err := os.Open(file)
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if err != nil {
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return nil, fmt.Errorf("未能打开指定文件,%w", err)
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}
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defer f.Close()
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crcTable := append(table, "IBM")
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crcTable := append(mode, IBM)
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hasher := hasherSelect(crcTable[0])
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if _, err := io.Copy(hasher, f); err != nil {
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return nil, fmt.Errorf("未能读取指定文件的内容,%w", err)
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@@ -58,8 +68,8 @@ func SumFile(file string, table ...string) ([]byte, error) {
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}
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// 计算指定文件的CRC16校验和,返回十六进制字符串
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func SumFileHex(file string, table ...string) (string, error) {
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hash, err := SumFile(file, table...)
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func SumFileHex(file string, mode ...CRC16Mode) (string, error) {
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hash, err := SumFile(file, mode...)
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if err != nil {
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return "", err
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}
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@@ -9,14 +9,22 @@ import (
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"os"
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)
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type CRC32Mode int
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const (
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IEEE CRC32Mode = iota
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Castagnoli
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Koopman
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)
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// 选择一个CRC32校验表
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func tableSelect(table string) *crc32.Table {
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switch table {
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case "IEEE":
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func tableSelect(mode CRC32Mode) *crc32.Table {
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switch mode {
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case IEEE:
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return crc32.IEEETable
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case "Castagnoli":
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case Castagnoli:
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return crc32.MakeTable(crc32.Castagnoli)
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case "Koopman":
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case Koopman:
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return crc32.MakeTable(crc32.Koopman)
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default:
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return crc32.IEEETable
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@@ -24,27 +32,27 @@ func tableSelect(table string) *crc32.Table {
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}
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// 计算给定字节数组的CRC32校验和,返回字节数组
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func CRC32(data []byte, table ...string) []byte {
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crcTable := append(table, "IEEE")
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func CRC32(data []byte, mode ...CRC32Mode) []byte {
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crcTable := append(mode, IEEE)
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hasher := crc32.New(tableSelect(crcTable[0]))
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hasher.Write(data)
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return hasher.Sum(nil)
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}
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// 计算给定字节数组的CRC32校验和,返回十六进制字符串
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func CRC32Hex(data []byte, table ...string) string {
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return hex.EncodeToString(CRC32(data, table...))
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func CRC32Hex(data []byte, mode ...CRC32Mode) string {
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return hex.EncodeToString(CRC32(data, mode...))
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}
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// 计算指定文件的CRC32校验和,返回字节数组
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func SumFile(file string, table ...string) ([]byte, error) {
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func SumFile(file string, mode ...CRC32Mode) ([]byte, error) {
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f, err := os.Open(file)
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if err != nil {
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return nil, fmt.Errorf("未能打开指定文件,%w", err)
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}
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defer f.Close()
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crcTable := append(table, "IEEE")
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crcTable := append(mode, IEEE)
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hasher := crc32.New(tableSelect(crcTable[0]))
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if _, err := io.Copy(hasher, f); err != nil {
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return nil, fmt.Errorf("未能读取指定文件的内容,%w", err)
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@@ -53,8 +61,8 @@ func SumFile(file string, table ...string) ([]byte, error) {
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}
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// 计算指定文件的CRC32校验和,返回十六进制字符串
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func SumFileHex(file string, table ...string) (string, error) {
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hash, err := SumFile(file, table...)
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func SumFileHex(file string, mode ...CRC32Mode) (string, error) {
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hash, err := SumFile(file, mode...)
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if err != nil {
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return "", err
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}
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@@ -9,12 +9,19 @@ import (
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"os"
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)
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type CRC64Mode int
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const (
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ECMA CRC64Mode = iota
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ISO
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)
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// 选择一个CRC64校验表。
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func tableSelect(table string) *crc64.Table {
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switch table {
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case "ECMA":
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func tableSelect(mode CRC64Mode) *crc64.Table {
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switch mode {
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case ECMA:
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return crc64.MakeTable(crc64.ECMA)
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case "ISO":
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case ISO:
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return crc64.MakeTable(crc64.ISO)
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default:
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return crc64.MakeTable(crc64.ISO)
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@@ -22,27 +29,27 @@ func tableSelect(table string) *crc64.Table {
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}
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// 计算给定字节数组的CRC64校验和,返回字节数组。
|
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func CRC64(data []byte, table ...string) []byte {
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crcTable := append(table, "ISO")
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func CRC64(data []byte, mode ...CRC64Mode) []byte {
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crcTable := append(mode, ISO)
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hasher := crc64.New(tableSelect(crcTable[0]))
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hasher.Write(data)
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return hasher.Sum(nil)
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}
|
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|
||||
// 计算给定字节数组的CRC64校验和,返回十六进制字符串。
|
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func CRC64Hex(data []byte, table ...string) string {
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return hex.EncodeToString(CRC64(data, table...))
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func CRC64Hex(data []byte, mode ...CRC64Mode) string {
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return hex.EncodeToString(CRC64(data, mode...))
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}
|
||||
|
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// 计算一个指定文件的CRC64校验和,返回字节数组。
|
||||
func SumFile(file string, table ...string) ([]byte, error) {
|
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func SumFile(file string, mode ...CRC64Mode) ([]byte, error) {
|
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f, err := os.Open(file)
|
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if err != nil {
|
||||
return nil, fmt.Errorf("未能打开指定文件,%w", err)
|
||||
}
|
||||
defer f.Close()
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||||
|
||||
crcTable := append(table, "ISO")
|
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crcTable := append(mode, ISO)
|
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hasher := crc64.New(tableSelect(crcTable[0]))
|
||||
if _, err := io.Copy(hasher, f); err != nil {
|
||||
return nil, fmt.Errorf("未能读取指定文件的内容,%w", err)
|
||||
@@ -51,8 +58,8 @@ func SumFile(file string, table ...string) ([]byte, error) {
|
||||
}
|
||||
|
||||
// 计算一个指定文件的CRC64校验和,返回十六进制字符串。
|
||||
func SumFileHex(file string, table ...string) (string, error) {
|
||||
hash, err := SumFile(file, table...)
|
||||
func SumFileHex(file string, mode ...CRC64Mode) (string, error) {
|
||||
hash, err := SumFile(file, mode...)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
@@ -9,28 +9,43 @@ import (
|
||||
"github.com/sigurn/crc8"
|
||||
)
|
||||
|
||||
type CRC8Mode int
|
||||
|
||||
const (
|
||||
ORIGIN CRC8Mode = iota
|
||||
CDMA2000
|
||||
DARC
|
||||
DVB_S2
|
||||
EBU
|
||||
I_CODE
|
||||
ITU
|
||||
MAXIM
|
||||
ROHC
|
||||
WCDMA
|
||||
)
|
||||
|
||||
// 根据提供的校验表名称生成对应的校验表
|
||||
func hasherSelect(table string) *crc8.Table {
|
||||
switch table {
|
||||
case "CRC8":
|
||||
func hasherSelect(mode CRC8Mode) *crc8.Table {
|
||||
switch mode {
|
||||
case ORIGIN:
|
||||
return crc8.MakeTable(crc8.CRC8)
|
||||
case "CDMA2000":
|
||||
case CDMA2000:
|
||||
return crc8.MakeTable(crc8.CRC8_CDMA2000)
|
||||
case "DARC":
|
||||
case DARC:
|
||||
return crc8.MakeTable(crc8.CRC8_DARC)
|
||||
case "DVB-S2":
|
||||
case DVB_S2:
|
||||
return crc8.MakeTable(crc8.CRC8_DVB_S2)
|
||||
case "EBU":
|
||||
case EBU:
|
||||
return crc8.MakeTable(crc8.CRC8_EBU)
|
||||
case "I-CODE":
|
||||
case I_CODE:
|
||||
return crc8.MakeTable(crc8.CRC8_I_CODE)
|
||||
case "ITU":
|
||||
case ITU:
|
||||
return crc8.MakeTable(crc8.CRC8_ITU)
|
||||
case "MAXIM":
|
||||
case MAXIM:
|
||||
return crc8.MakeTable(crc8.CRC8_MAXIM)
|
||||
case "ROHC":
|
||||
case ROHC:
|
||||
return crc8.MakeTable(crc8.CRC8_ROHC)
|
||||
case "WCDMA":
|
||||
case WCDMA:
|
||||
return crc8.MakeTable(crc8.CRC8_WCDMA)
|
||||
default:
|
||||
return crc8.MakeTable(crc8.CRC8)
|
||||
@@ -38,25 +53,25 @@ func hasherSelect(table string) *crc8.Table {
|
||||
}
|
||||
|
||||
// 计算给定字节数组的CRC8校验和,返回字节数组
|
||||
func CRC8(data []byte, table ...string) []byte {
|
||||
crcTable := append(table, "CRC8")
|
||||
func CRC8(data []byte, mode ...CRC8Mode) []byte {
|
||||
crcTable := append(mode, ORIGIN)
|
||||
return []byte{crc8.Checksum(data, hasherSelect(crcTable[0]))}
|
||||
}
|
||||
|
||||
// 计算给定字节数组的CRC8校验和,返回十六进制字符串
|
||||
func CRC8Hex(data []byte, table ...string) string {
|
||||
return hex.EncodeToString(CRC8(data, table...))
|
||||
func CRC8Hex(data []byte, mode ...CRC8Mode) string {
|
||||
return hex.EncodeToString(CRC8(data, mode...))
|
||||
}
|
||||
|
||||
// 计算指定文件的CRC8校验和,返回字节数组
|
||||
func SumFile(file string, table ...string) ([]byte, error) {
|
||||
func SumFile(file string, mode ...CRC8Mode) ([]byte, error) {
|
||||
f, err := os.Open(file)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("未能打开指定文件,%w", err)
|
||||
}
|
||||
defer f.Close()
|
||||
|
||||
crcTable := append(table, "CRC8")
|
||||
crcTable := append(mode, ORIGIN)
|
||||
var buf = make([]byte, 0)
|
||||
if _, err := f.Read(buf); err != nil {
|
||||
return nil, fmt.Errorf("读取指定文件内容出错,%w", err)
|
||||
@@ -65,8 +80,8 @@ func SumFile(file string, table ...string) ([]byte, error) {
|
||||
}
|
||||
|
||||
// 计算指定文件的CRC8校验和,返回十六进制字符串
|
||||
func SumFileHex(file string, table ...string) (string, error) {
|
||||
crc, err := SumFile(file, table...)
|
||||
func SumFileHex(file string, mode ...CRC8Mode) (string, error) {
|
||||
crc, err := SumFile(file, mode...)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
@@ -46,8 +46,7 @@ func Sha256_224Hex(data []byte) string {
|
||||
|
||||
// 根据给定位数计算一个字节数组的Sha256校验和,返回字节数组。
|
||||
func Sum256(data []byte, bitSize ...int) []byte {
|
||||
length := append(bitSize, 256)
|
||||
hasher := hasherSelect(length[0])
|
||||
hasher := hasherSelect(append(bitSize, 256)[0])
|
||||
hasher.Write(data)
|
||||
return hasher.Sum(nil)
|
||||
}
|
||||
@@ -65,7 +64,7 @@ func SumFile256(file string, bitSize ...int) ([]byte, error) {
|
||||
}
|
||||
defer f.Close()
|
||||
|
||||
hasher := hasherSelect(bitSize[0])
|
||||
hasher := hasherSelect(append(bitSize, 256)[0])
|
||||
if _, err := io.Copy(hasher, f); err != nil {
|
||||
return nil, fmt.Errorf("未能读取指定文件的内容,%w", err)
|
||||
}
|
||||
|
||||
@@ -10,17 +10,17 @@ import (
|
||||
)
|
||||
|
||||
// 用于记录当前冰雹ID组成内容的数据结构
|
||||
type _HailAlgorithm struct {
|
||||
type HailAlgorithm struct {
|
||||
hostSerial int64
|
||||
lastTimestamp int64
|
||||
lastSequence int64
|
||||
lock sync.Mutex
|
||||
}
|
||||
|
||||
var hailAlgorithmInstance *_HailAlgorithm
|
||||
var hailAlgorithmInstance *HailAlgorithm
|
||||
|
||||
// 获取当前已经完成初始化的冰雹ID生成算法实例,如果尚未完成初始化则会返回未初始化的错误。
|
||||
func Get() (*_HailAlgorithm, error) {
|
||||
func Get() (*HailAlgorithm, error) {
|
||||
if hailAlgorithmInstance == nil {
|
||||
return nil, &HailAlgorithmNotInitializedError{}
|
||||
}
|
||||
@@ -29,7 +29,7 @@ func Get() (*_HailAlgorithm, error) {
|
||||
|
||||
// 指定一个主机编号,并完成冰雹ID生成算法的初始化。
|
||||
func Initialize(hostSerial int64) {
|
||||
hailAlgorithmInstance = &_HailAlgorithm{
|
||||
hailAlgorithmInstance = &HailAlgorithm{
|
||||
hostSerial: hostSerial,
|
||||
lastTimestamp: types.Timestamp(),
|
||||
lastSequence: 0,
|
||||
@@ -38,7 +38,7 @@ func Initialize(hostSerial int64) {
|
||||
}
|
||||
|
||||
// 返回一个可用的时间戳,如果主机发生了时间回拨,那么将等待一秒钟。
|
||||
func (h *_HailAlgorithm) timestamp() int64 {
|
||||
func (h *HailAlgorithm) timestamp() int64 {
|
||||
for {
|
||||
timestamp := types.Timestamp()
|
||||
if timestamp == h.lastTimestamp {
|
||||
@@ -54,7 +54,7 @@ func (h *_HailAlgorithm) timestamp() int64 {
|
||||
}
|
||||
|
||||
// 生成一个冰雹ID。
|
||||
func (h *_HailAlgorithm) Generate() int64 {
|
||||
func (h *HailAlgorithm) Generate() int64 {
|
||||
h.lock.Lock()
|
||||
defer h.lock.Unlock()
|
||||
timestamp := h.timestamp()
|
||||
@@ -63,11 +63,11 @@ func (h *_HailAlgorithm) Generate() int64 {
|
||||
}
|
||||
|
||||
// 生成一个冰雹ID,并将其转换为字符串。
|
||||
func (h *_HailAlgorithm) GenerateString() string {
|
||||
func (h *HailAlgorithm) GenerateString() string {
|
||||
return fmt.Sprintf("%017d", h.Generate())
|
||||
}
|
||||
|
||||
// 生成一个冰雹ID,将其转换为字符串并附加指定的前缀
|
||||
func (h *_HailAlgorithm) GeneratePrefixedString(prefix string) string {
|
||||
func (h *HailAlgorithm) GeneratePrefixedString(prefix string) string {
|
||||
return fmt.Sprintf("%s%s", prefix, h.GenerateString())
|
||||
}
|
||||
|
||||
13
serial_code/uuidv7/errors.go
Normal file
13
serial_code/uuidv7/errors.go
Normal file
@@ -0,0 +1,13 @@
|
||||
package uuidv7
|
||||
|
||||
type UUIDv7GeneratorNotInitializedError struct{}
|
||||
|
||||
func (e *UUIDv7GeneratorNotInitializedError) Error() string {
|
||||
return "UUIDv7生成器尚未初始化"
|
||||
}
|
||||
|
||||
type UUIDv7NodeIDExceededError struct{}
|
||||
|
||||
func (e *UUIDv7NodeIDExceededError) Error() string {
|
||||
return "UUIDv7节点ID超出范围"
|
||||
}
|
||||
258
serial_code/uuidv7/uuid.go
Normal file
258
serial_code/uuidv7/uuid.go
Normal file
@@ -0,0 +1,258 @@
|
||||
package uuidv7
|
||||
|
||||
import (
|
||||
"crypto/rand"
|
||||
"encoding/hex"
|
||||
"fmt"
|
||||
"strings"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
"archgrid.xyz/ag/toolsbox/serialize/base36"
|
||||
"archgrid.xyz/ag/toolsbox/serialize/base64"
|
||||
)
|
||||
|
||||
const (
|
||||
epoch = 1645566142222 // 自定义纪元:2022-02-22 22:22:22.222 UTC
|
||||
nodeBits = 5 // 主机编号容量为0~32
|
||||
sequenceBits = 18 // 每毫秒生成序列号最大为2^18-1,即262144个
|
||||
maxNodeID = (1 << nodeBits) - 1
|
||||
maxSequence = (1 << sequenceBits) - 1
|
||||
timestampShift = nodeBits + sequenceBits
|
||||
nodeShift = sequenceBits
|
||||
)
|
||||
|
||||
type UUIDv7Generator struct {
|
||||
locker sync.Mutex
|
||||
nodeID int64
|
||||
lastTime int64
|
||||
sequence int64
|
||||
}
|
||||
|
||||
type UUIDv7Components struct {
|
||||
Timestamp int64 // 毫秒时间戳(相对于自定义纪元)
|
||||
NodeID int64 // 5位节点ID
|
||||
Sequence int64 // 18位序列号
|
||||
Version int // 版本号(应为7)
|
||||
Variant int // 变体(应为2,表示10xx)
|
||||
RawBytes [16]byte // 原始字节
|
||||
}
|
||||
|
||||
var generatorInstance *UUIDv7Generator
|
||||
|
||||
// 获取UUIDv7生成器实例。如果实例尚未初始化,则返回错误。
|
||||
func Generator() (*UUIDv7Generator, error) {
|
||||
if generatorInstance == nil {
|
||||
return nil, &UUIDv7GeneratorNotInitializedError{}
|
||||
}
|
||||
return generatorInstance, nil
|
||||
}
|
||||
|
||||
// 指定一个主机编号,并完成UUIDv7生成器的初始化。如果主机编号超出范围,则返回错误。
|
||||
func Initialize(hostSerial int64) error {
|
||||
if hostSerial < 0 || hostSerial > maxNodeID {
|
||||
return &UUIDv7NodeIDExceededError{}
|
||||
}
|
||||
generatorInstance = &UUIDv7Generator{
|
||||
nodeID: hostSerial,
|
||||
lastTime: epoch,
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// 获取当前时间对应的新纪元毫秒时间戳。
|
||||
func (g *UUIDv7Generator) Now() int64 {
|
||||
return time.Now().UnixMilli() - epoch
|
||||
}
|
||||
|
||||
// 按顺序生成一个UUIDv7序号组件。
|
||||
func (g *UUIDv7Generator) Next() UUIDv7Components {
|
||||
g.locker.Lock()
|
||||
defer g.locker.Unlock()
|
||||
now := g.Now()
|
||||
if now < g.lastTime {
|
||||
// 防止时间回拔的情况,发生回拔时,直接使用上一次的时间戳
|
||||
now = g.lastTime
|
||||
}
|
||||
if now == g.lastTime {
|
||||
g.sequence++
|
||||
if g.sequence > maxSequence {
|
||||
time.Sleep(time.Millisecond)
|
||||
now = g.Now()
|
||||
g.sequence = 0
|
||||
}
|
||||
} else {
|
||||
g.sequence = 0
|
||||
}
|
||||
g.lastTime = now
|
||||
return UUIDv7Components{
|
||||
Timestamp: now,
|
||||
NodeID: g.nodeID,
|
||||
Sequence: g.sequence,
|
||||
Version: 7,
|
||||
Variant: 2,
|
||||
}
|
||||
}
|
||||
|
||||
// 读取随机字节
|
||||
func (c *UUIDv7Components) readRandom(bytes []byte) error {
|
||||
_, err := rand.Read(bytes)
|
||||
return err
|
||||
}
|
||||
|
||||
// 获取UUIDv7原始字节数组
|
||||
func (c *UUIDv7Components) Bytes() [16]byte {
|
||||
// 构造 UUID
|
||||
var uuid [16]byte
|
||||
// 时间戳(48 位)
|
||||
timestamp := uint64(c.Timestamp) << timestampShift
|
||||
seqAndNode := (uint64(c.Sequence) << nodeShift) | uint64(c.NodeID)
|
||||
// 写入高位时间戳
|
||||
uuid[0] = byte(timestamp >> 56)
|
||||
uuid[1] = byte(timestamp >> 48)
|
||||
uuid[2] = byte(timestamp >> 40)
|
||||
uuid[3] = byte(timestamp >> 32)
|
||||
uuid[4] = byte(timestamp >> 24)
|
||||
uuid[5] = byte(timestamp >> 16)
|
||||
// 写入低位时间戳 + 版本号(4 位)
|
||||
uuid[6] = byte((timestamp >> 8) | 0x70) // version 7
|
||||
uuid[7] = byte(timestamp)
|
||||
// 写入 seq + node
|
||||
uuid[8] = byte((seqAndNode >> 16) | 0x80) // variant 10xx
|
||||
uuid[9] = byte(seqAndNode >> 8)
|
||||
uuid[10] = byte(seqAndNode)
|
||||
// 剩余位全为 0(可扩展为更多节点 ID 或随机数)
|
||||
randomBytes := make([]byte, 5)
|
||||
if err := c.readRandom(randomBytes); err != nil {
|
||||
// 如果随机数生成失败,使用时间相关值作为后备
|
||||
t := time.Now().UnixNano()
|
||||
randomBytes[0] = byte(t)
|
||||
randomBytes[1] = byte(t >> 8)
|
||||
randomBytes[2] = byte(t >> 16)
|
||||
randomBytes[3] = byte(t >> 24)
|
||||
randomBytes[4] = byte(c.Sequence)
|
||||
}
|
||||
copy(uuid[11:16], randomBytes)
|
||||
return uuid
|
||||
}
|
||||
|
||||
// 获取UUIDv7字符串
|
||||
func (c *UUIDv7Components) String() string {
|
||||
uuid := c.Bytes()
|
||||
return fmt.Sprintf("%x-%x-%x-%x-%x",
|
||||
uuid[0:4],
|
||||
uuid[4:6],
|
||||
uuid[6:8],
|
||||
uuid[8:10],
|
||||
uuid[10:16])
|
||||
}
|
||||
|
||||
// 获取UUIDv7的Base64格式字符串
|
||||
func (c *UUIDv7Components) ToBase64() string {
|
||||
uuid := c.Bytes()
|
||||
return base64.ToBase64(uuid[:])
|
||||
}
|
||||
|
||||
// 获取UUIDv7的Base36格式字符串
|
||||
func (c *UUIDv7Components) ToBase36() string {
|
||||
uuid := c.Bytes()
|
||||
return base36.Encode(uuid[:])
|
||||
}
|
||||
|
||||
// 与另一个UUIDv7进行比较,按照时间戳、序列号、节点ID进行排序
|
||||
func (c *UUIDv7Components) Compare(b *UUIDv7Components) int {
|
||||
if c.Timestamp > b.Timestamp {
|
||||
return 1
|
||||
}
|
||||
if c.Timestamp < b.Timestamp {
|
||||
return -1
|
||||
}
|
||||
|
||||
if c.Sequence > b.Sequence {
|
||||
return 1
|
||||
}
|
||||
if c.Sequence < b.Sequence {
|
||||
return -1
|
||||
}
|
||||
|
||||
if c.NodeID > b.NodeID {
|
||||
return -1
|
||||
}
|
||||
if c.NodeID < b.NodeID {
|
||||
return 1
|
||||
}
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
// 对解析后的UUIDv7进行比较,按照时间戳、序列号、节点ID进行排序
|
||||
func CompareUUIDv7(a, b *UUIDv7Components) int {
|
||||
return a.Compare(b)
|
||||
}
|
||||
|
||||
// 从字节数组解析 UUIDv7
|
||||
func ParseUUIDv7FromBytes(data [16]byte) (*UUIDv7Components, error) {
|
||||
// 提取时间戳(前48位)
|
||||
timestamp := (int64(data[0]) << 40) |
|
||||
(int64(data[1]) << 32) |
|
||||
(int64(data[2]) << 24) |
|
||||
(int64(data[3]) << 16) |
|
||||
(int64(data[4]) << 8) |
|
||||
int64(data[5])
|
||||
// 提取版本号(第6字节的高4位)
|
||||
version := int(data[6] >> 4)
|
||||
// 提取变体(第8字节的高2位)
|
||||
variant := int(data[8] >> 6)
|
||||
// 提取序列号和节点ID
|
||||
// 第8字节的低2位 + 第9字节 + 第10字节的高3位组成23位
|
||||
seqAndNode := (int64(data[8]&0x3F) << 16) | // 第8字节低6位
|
||||
(int64(data[9]) << 8) | // 第9字节
|
||||
int64(data[10]) // 第10字节
|
||||
// 分离序列号(高18位)和节点ID(低5位)
|
||||
sequence := seqAndNode >> 5
|
||||
nodeID := seqAndNode & 0x1F
|
||||
return &UUIDv7Components{
|
||||
Timestamp: timestamp,
|
||||
NodeID: nodeID,
|
||||
Sequence: sequence,
|
||||
Version: version,
|
||||
Variant: variant,
|
||||
RawBytes: data,
|
||||
}, nil
|
||||
}
|
||||
|
||||
// 从字符串解析 UUIDv7
|
||||
func ParseUUIDv7FromString(uuidStr string) (*UUIDv7Components, error) {
|
||||
// 移除连字符并验证长度
|
||||
cleanStr := strings.ReplaceAll(uuidStr, "-", "")
|
||||
if len(cleanStr) != 32 {
|
||||
return nil, fmt.Errorf("无效的UUIDv7字符串长度")
|
||||
}
|
||||
// 解码十六进制字符串
|
||||
bytes, err := hex.DecodeString(cleanStr)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("无效的UUIDv7字符串格式: %v", err)
|
||||
}
|
||||
// 转换为数组
|
||||
var uuidBytes [16]byte
|
||||
copy(uuidBytes[:], bytes)
|
||||
return ParseUUIDv7FromBytes(uuidBytes)
|
||||
}
|
||||
|
||||
// 从Base64格式字符串解析 UUIDv7
|
||||
func ParseUUIDv7FromBase64(base64Str string) (*UUIDv7Components, error) {
|
||||
bytes, err := base64.FromBase64(base64Str)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("无效的Base64格式字符串: %v", err)
|
||||
}
|
||||
return ParseUUIDv7FromBytes([16]byte(bytes))
|
||||
}
|
||||
|
||||
// 从Base36格式字符串解析 UUIDv7
|
||||
func ParseUUIDv7FromBase36(base36Str string) (*UUIDv7Components, error) {
|
||||
bytes, err := base36.Decode(base36Str)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("无效的Base36格式字符串: %v", err)
|
||||
}
|
||||
return ParseUUIDv7FromBytes([16]byte(bytes))
|
||||
}
|
||||
108
serialize/base36/base36.go
Normal file
108
serialize/base36/base36.go
Normal file
@@ -0,0 +1,108 @@
|
||||
package base36
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"math/big"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// Encode 将字节数据编码为Base36字符串(大写),使用=作为padding字符
|
||||
func Encode(src []byte) string {
|
||||
if len(src) == 0 {
|
||||
return ""
|
||||
}
|
||||
|
||||
// 将字节转换为big.Int
|
||||
num := new(big.Int).SetBytes(src)
|
||||
|
||||
// 如果输入为全零字节,则直接返回"0"
|
||||
if num.Cmp(big.NewInt(0)) == 0 {
|
||||
return "0"
|
||||
}
|
||||
|
||||
// 进行Base36编码
|
||||
var result strings.Builder
|
||||
base := big.NewInt(36)
|
||||
zero := big.NewInt(0)
|
||||
remainder := new(big.Int)
|
||||
|
||||
// 重复除以36,获取余数作为字符
|
||||
for num.Cmp(zero) > 0 {
|
||||
num.DivMod(num, base, remainder)
|
||||
digit := remainder.Int64()
|
||||
|
||||
if digit < 10 {
|
||||
result.WriteString(fmt.Sprintf("%d", digit))
|
||||
} else {
|
||||
result.WriteString(fmt.Sprintf("%c", 'A'+digit-10))
|
||||
}
|
||||
}
|
||||
|
||||
// 反转字符串,因为我们是从低位开始计算的
|
||||
encoded := result.String()
|
||||
runes := []rune(encoded)
|
||||
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)
|
||||
}
|
||||
|
||||
// Decode 将Base36字符串(可为任意大小写)解码为字节数组
|
||||
func Decode(src string) ([]byte, error) {
|
||||
if src == "" {
|
||||
return []byte{}, nil
|
||||
}
|
||||
|
||||
// 移除padding字符
|
||||
src = strings.ReplaceAll(src, "=", "")
|
||||
src = strings.ToUpper(src)
|
||||
|
||||
// 使用big.Int进行解码
|
||||
num := big.NewInt(0)
|
||||
base := big.NewInt(36)
|
||||
|
||||
for _, char := range src {
|
||||
var digit int64
|
||||
|
||||
switch {
|
||||
case char >= '0' && char <= '9':
|
||||
digit = int64(char - '0')
|
||||
case char >= 'A' && char <= 'Z':
|
||||
digit = int64(char - 'A' + 10)
|
||||
default:
|
||||
return nil, fmt.Errorf("invalid character %c in base36 string", char)
|
||||
}
|
||||
|
||||
num.Mul(num, base)
|
||||
num.Add(num, big.NewInt(digit))
|
||||
}
|
||||
|
||||
// 转换为字节数组
|
||||
return num.Bytes(), nil
|
||||
}
|
||||
|
||||
// EncodeToString 是Encode的别名,用于保持与标准库一致的命名
|
||||
func EncodeToString(src []byte) string {
|
||||
return Encode(src)
|
||||
}
|
||||
|
||||
// DecodeString 是Decode的别名,用于保持与标准库一致的命名
|
||||
func DecodeString(src string) ([]byte, error) {
|
||||
return Decode(src)
|
||||
}
|
||||
|
||||
// EncodeInt64 将int64转换为Base36字符串
|
||||
func EncodeInt64(num int64) string {
|
||||
return EncodeToString(big.NewInt(num).Bytes())
|
||||
}
|
||||
|
||||
// DecodeToInt64 将Base36字符串解码为int64
|
||||
func DecodeToInt64(src string) (int64, error) {
|
||||
bytes, err := DecodeString(src)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
|
||||
return new(big.Int).SetBytes(bytes).Int64(), nil
|
||||
}
|
||||
42
serialize/base36/base36_test.go
Normal file
42
serialize/base36/base36_test.go
Normal file
@@ -0,0 +1,42 @@
|
||||
package base36
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func FuzzEncode(f *testing.F) {
|
||||
testCases := []string{"a", "abc", "uuid"}
|
||||
for _, tc := range testCases {
|
||||
f.Add(tc)
|
||||
}
|
||||
f.Fuzz(func(t *testing.T, a string) {
|
||||
encoded := Encode([]byte(a))
|
||||
redecoded, err := Decode(encoded)
|
||||
fmt.Printf("Origin: %s, Encoded: %s\n", a, encoded)
|
||||
if err != nil {
|
||||
t.Errorf("Decode(%q) failed: %v", encoded, err)
|
||||
}
|
||||
if string(redecoded) != a {
|
||||
t.Errorf("Decode(%q) = %q, want %q", encoded, redecoded, a)
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
func FuzzEncodeInt64(f *testing.F) {
|
||||
testCases := []int64{1, 6, 34598347534, 234532543, 2342546456, 34587639284756293}
|
||||
for _, tc := range testCases {
|
||||
f.Add(tc)
|
||||
}
|
||||
f.Fuzz(func(t *testing.T, a int64) {
|
||||
encoded := EncodeInt64(a)
|
||||
redecoded, err := DecodeToInt64(encoded)
|
||||
fmt.Printf("Origin: %d, Encoded: %s\n", a, encoded)
|
||||
if err != nil {
|
||||
t.Errorf("Decode(%q) failed: %v", encoded, err)
|
||||
}
|
||||
if redecoded != a {
|
||||
t.Errorf("Decode(%q) = %q, want %q", encoded, redecoded, a)
|
||||
}
|
||||
})
|
||||
}
|
||||
Reference in New Issue
Block a user