fix
This commit is contained in:
laodaming
parent
cefe601046
commit
8a349399e1
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@ -185,11 +185,6 @@ func (l *DataTransferLogic) setConnPool(conn *websocket.Conn, userInfo *auth.Use
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}
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if oldWid != "" {
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for i := 0; i < 1; i++ {
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oldWid, err = encryption_decryption.NumberStrToBase64Str(oldWid)
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if err != nil {
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logx.Error("wid转base64失败:", err)
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break
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}
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//解析传入的wid是不是属于自己的用户的
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decryptionWid, err := encryption_decryption.CBCDecrypt(oldWid)
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if err != nil {
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@ -278,7 +273,7 @@ func (l *DataTransferLogic) getUniqueId(userInfo *auth.UserInfo, userAgent strin
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if err != nil {
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return "", err
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}
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return encryption_decryption.Base64StrToNumberStr(uniqueId), nil
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return uniqueId, nil
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}
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// 鉴权
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@ -5,35 +5,13 @@ import (
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"crypto/aes"
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"crypto/cipher"
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"crypto/rand"
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"encoding/base64"
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"fmt"
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"strconv"
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"strings"
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"fusenapi/utils/selfdefine_base64"
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)
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// 必须16字节
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var cbckey = "fusen20230405145"
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func Base64StrToNumberStr(base64Str string) string {
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s := strings.Builder{}
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for _, v := range base64Str {
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s.WriteString(fmt.Sprintf("%d.", v))
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}
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return strings.TrimRight(s.String(), ".")
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}
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func NumberStrToBase64Str(numberStr string) (string, error) {
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s := strings.Split(numberStr, ".")
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b := make([]int32, 0, len(s))
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for _, v := range s {
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c, err := strconv.Atoi(v)
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if err != nil {
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return "", err
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}
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b = append(b, int32(c))
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}
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return string(b), nil
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}
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// 加密(key必须16字节),前端加解密需要先把base64转字符串再取前16字节作为iv
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func CBCEncrypt(data string) (string, error) {
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defer func() {
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@ -59,7 +37,7 @@ func CBCEncrypt(data string) (string, error) {
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}
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mode := cipher.NewCBCEncrypter(block, iv)
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mode.CryptBlocks(ciphertext[aes.BlockSize:], []byte(data))
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return base64.StdEncoding.EncodeToString(ciphertext), nil
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return selfdefine_base64.StdEncoding.EncodeToString(ciphertext), nil
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}
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// 解密(key必须16字节)
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@ -73,7 +51,7 @@ func CBCDecrypt(src string) (string, error) {
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if err != nil {
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return "", err
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}
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ciphercode, err := base64.StdEncoding.DecodeString(src)
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ciphercode, err := selfdefine_base64.StdEncoding.DecodeString(src)
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if err != nil {
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return "", err
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}
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622
utils/selfdefine_base64/base.go
Normal file
622
utils/selfdefine_base64/base.go
Normal file
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@ -0,0 +1,622 @@
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package selfdefine_base64
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import (
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"encoding/binary"
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"io"
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"strconv"
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)
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/*
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* Encodings
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*/
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// An Encoding is a radix 64 encoding/decoding scheme, defined by a
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// 64-character alphabet. The most common encoding is the "base64"
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// encoding defined in RFC 4648 and used in MIME (RFC 2045) and PEM
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// (RFC 1421). RFC 4648 also defines an alternate encoding, which is
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// the standard encoding with - and _ substituted for + and /.
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type Encoding struct {
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encode [64]byte
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decodeMap [256]byte
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padChar rune
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strict bool
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}
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const (
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StdPadding rune = '=' // Standard padding character
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NoPadding rune = -1 // No padding
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decodeMapInitialize = "" +
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"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
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"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
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"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
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"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
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"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
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"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
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"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
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"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
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"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
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"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
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"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
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"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
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"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
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"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
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"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
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"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
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)
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const encodeStd = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789#@"
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const encodeURL = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"
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// NewEncoding returns a new padded Encoding defined by the given alphabet,
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// which must be a 64-byte string that does not contain the padding character
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// or CR / LF ('\r', '\n').
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// The resulting Encoding uses the default padding character ('='),
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// which may be changed or disabled via WithPadding.
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func NewEncoding(encoder string) *Encoding {
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if len(encoder) != 64 {
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panic("encoding alphabet is not 64-bytes long")
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}
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for i := 0; i < len(encoder); i++ {
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if encoder[i] == '\n' || encoder[i] == '\r' {
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panic("encoding alphabet contains newline character")
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}
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}
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e := new(Encoding)
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e.padChar = StdPadding
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copy(e.encode[:], encoder)
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copy(e.decodeMap[:], decodeMapInitialize)
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for i := 0; i < len(encoder); i++ {
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e.decodeMap[encoder[i]] = byte(i)
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}
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return e
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}
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// WithPadding creates a new encoding identical to enc except
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// with a specified padding character, or NoPadding to disable padding.
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// The padding character must not be '\r' or '\n', must not
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// be contained in the encoding's alphabet and must be a rune equal or
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// below '\xff'.
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func (enc Encoding) WithPadding(padding rune) *Encoding {
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if padding == '\r' || padding == '\n' || padding > 0xff {
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panic("invalid padding")
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}
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for i := 0; i < len(enc.encode); i++ {
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if rune(enc.encode[i]) == padding {
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panic("padding contained in alphabet")
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}
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}
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enc.padChar = padding
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return &enc
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}
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// Strict creates a new encoding identical to enc except with
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// strict decoding enabled. In this mode, the decoder requires that
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// trailing padding bits are zero, as described in RFC 4648 section 3.5.
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//
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// Note that the input is still malleable, as new line characters
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// (CR and LF) are still ignored.
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func (enc Encoding) Strict() *Encoding {
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enc.strict = true
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return &enc
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}
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// StdEncoding is the standard base64 encoding, as defined in
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// RFC 4648.
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var StdEncoding = NewEncoding(encodeStd)
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// URLEncoding is the alternate base64 encoding defined in RFC 4648.
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// It is typically used in URLs and file names.
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var URLEncoding = NewEncoding(encodeURL)
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// RawStdEncoding is the standard raw, unpadded base64 encoding,
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// as defined in RFC 4648 section 3.2.
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// This is the same as StdEncoding but omits padding characters.
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var RawStdEncoding = StdEncoding.WithPadding(NoPadding)
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// RawURLEncoding is the unpadded alternate base64 encoding defined in RFC 4648.
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// It is typically used in URLs and file names.
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// This is the same as URLEncoding but omits padding characters.
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var RawURLEncoding = URLEncoding.WithPadding(NoPadding)
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/*
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* Encoder
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*/
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// Encode encodes src using the encoding enc, writing
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// EncodedLen(len(src)) bytes to dst.
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//
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// The encoding pads the output to a multiple of 4 bytes,
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// so Encode is not appropriate for use on individual blocks
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// of a large data stream. Use NewEncoder() instead.
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func (enc *Encoding) Encode(dst, src []byte) {
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if len(src) == 0 {
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return
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}
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// enc is a pointer receiver, so the use of enc.encode within the hot
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// loop below means a nil check at every operation. Lift that nil check
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// outside of the loop to speed up the encoder.
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_ = enc.encode
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di, si := 0, 0
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n := (len(src) / 3) * 3
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for si < n {
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// Convert 3x 8bit source bytes into 4 bytes
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val := uint(src[si+0])<<16 | uint(src[si+1])<<8 | uint(src[si+2])
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dst[di+0] = enc.encode[val>>18&0x3F]
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dst[di+1] = enc.encode[val>>12&0x3F]
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dst[di+2] = enc.encode[val>>6&0x3F]
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dst[di+3] = enc.encode[val&0x3F]
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si += 3
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di += 4
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}
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remain := len(src) - si
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if remain == 0 {
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return
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}
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// Add the remaining small block
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val := uint(src[si+0]) << 16
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if remain == 2 {
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val |= uint(src[si+1]) << 8
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}
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dst[di+0] = enc.encode[val>>18&0x3F]
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dst[di+1] = enc.encode[val>>12&0x3F]
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switch remain {
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case 2:
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dst[di+2] = enc.encode[val>>6&0x3F]
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if enc.padChar != NoPadding {
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dst[di+3] = byte(enc.padChar)
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}
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case 1:
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if enc.padChar != NoPadding {
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dst[di+2] = byte(enc.padChar)
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dst[di+3] = byte(enc.padChar)
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}
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}
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}
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// EncodeToString returns the base64 encoding of src.
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func (enc *Encoding) EncodeToString(src []byte) string {
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buf := make([]byte, enc.EncodedLen(len(src)))
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enc.Encode(buf, src)
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return string(buf)
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}
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type encoder struct {
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err error
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enc *Encoding
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w io.Writer
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buf [3]byte // buffered data waiting to be encoded
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nbuf int // number of bytes in buf
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out [1024]byte // output buffer
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}
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func (e *encoder) Write(p []byte) (n int, err error) {
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if e.err != nil {
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return 0, e.err
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}
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// Leading fringe.
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if e.nbuf > 0 {
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var i int
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for i = 0; i < len(p) && e.nbuf < 3; i++ {
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e.buf[e.nbuf] = p[i]
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e.nbuf++
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}
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n += i
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p = p[i:]
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if e.nbuf < 3 {
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return
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}
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e.enc.Encode(e.out[:], e.buf[:])
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if _, e.err = e.w.Write(e.out[:4]); e.err != nil {
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return n, e.err
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}
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e.nbuf = 0
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}
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// Large interior chunks.
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for len(p) >= 3 {
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nn := len(e.out) / 4 * 3
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if nn > len(p) {
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nn = len(p)
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nn -= nn % 3
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}
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e.enc.Encode(e.out[:], p[:nn])
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if _, e.err = e.w.Write(e.out[0 : nn/3*4]); e.err != nil {
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return n, e.err
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}
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n += nn
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p = p[nn:]
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}
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// Trailing fringe.
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copy(e.buf[:], p)
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e.nbuf = len(p)
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n += len(p)
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return
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}
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// Close flushes any pending output from the encoder.
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// It is an error to call Write after calling Close.
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func (e *encoder) Close() error {
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// If there's anything left in the buffer, flush it out
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if e.err == nil && e.nbuf > 0 {
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e.enc.Encode(e.out[:], e.buf[:e.nbuf])
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_, e.err = e.w.Write(e.out[:e.enc.EncodedLen(e.nbuf)])
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e.nbuf = 0
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}
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return e.err
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}
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// NewEncoder returns a new base64 stream encoder. Data written to
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// the returned writer will be encoded using enc and then written to w.
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// Base64 encodings operate in 4-byte blocks; when finished
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// writing, the caller must Close the returned encoder to flush any
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// partially written blocks.
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func NewEncoder(enc *Encoding, w io.Writer) io.WriteCloser {
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return &encoder{enc: enc, w: w}
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}
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// EncodedLen returns the length in bytes of the base64 encoding
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// of an input buffer of length n.
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func (enc *Encoding) EncodedLen(n int) int {
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if enc.padChar == NoPadding {
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return (n*8 + 5) / 6 // minimum # chars at 6 bits per char
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}
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return (n + 2) / 3 * 4 // minimum # 4-char quanta, 3 bytes each
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}
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/*
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* Decoder
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*/
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type CorruptInputError int64
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func (e CorruptInputError) Error() string {
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return "illegal base64 data at input byte " + strconv.FormatInt(int64(e), 10)
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}
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// decodeQuantum decodes up to 4 base64 bytes. The received parameters are
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// the destination buffer dst, the source buffer src and an index in the
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// source buffer si.
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// It returns the number of bytes read from src, the number of bytes written
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// to dst, and an error, if any.
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func (enc *Encoding) decodeQuantum(dst, src []byte, si int) (nsi, n int, err error) {
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// Decode quantum using the base64 alphabet
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var dbuf [4]byte
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dlen := 4
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// Lift the nil check outside of the loop.
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_ = enc.decodeMap
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for j := 0; j < len(dbuf); j++ {
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if len(src) == si {
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switch {
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case j == 0:
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return si, 0, nil
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case j == 1, enc.padChar != NoPadding:
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return si, 0, CorruptInputError(si - j)
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}
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dlen = j
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break
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}
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in := src[si]
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si++
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out := enc.decodeMap[in]
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if out != 0xff {
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dbuf[j] = out
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continue
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}
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if in == '\n' || in == '\r' {
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j--
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continue
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}
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if rune(in) != enc.padChar {
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return si, 0, CorruptInputError(si - 1)
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}
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// We've reached the end and there's padding
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switch j {
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case 0, 1:
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// incorrect padding
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return si, 0, CorruptInputError(si - 1)
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case 2:
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// "==" is expected, the first "=" is already consumed.
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// skip over newlines
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for si < len(src) && (src[si] == '\n' || src[si] == '\r') {
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si++
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}
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if si == len(src) {
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// not enough padding
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return si, 0, CorruptInputError(len(src))
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}
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if rune(src[si]) != enc.padChar {
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// incorrect padding
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return si, 0, CorruptInputError(si - 1)
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}
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si++
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}
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// skip over newlines
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for si < len(src) && (src[si] == '\n' || src[si] == '\r') {
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si++
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}
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if si < len(src) {
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// trailing garbage
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err = CorruptInputError(si)
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}
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dlen = j
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break
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}
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// Convert 4x 6bit source bytes into 3 bytes
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val := uint(dbuf[0])<<18 | uint(dbuf[1])<<12 | uint(dbuf[2])<<6 | uint(dbuf[3])
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dbuf[2], dbuf[1], dbuf[0] = byte(val>>0), byte(val>>8), byte(val>>16)
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switch dlen {
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case 4:
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dst[2] = dbuf[2]
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dbuf[2] = 0
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fallthrough
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case 3:
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dst[1] = dbuf[1]
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if enc.strict && dbuf[2] != 0 {
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return si, 0, CorruptInputError(si - 1)
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}
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dbuf[1] = 0
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fallthrough
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case 2:
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dst[0] = dbuf[0]
|
||||
if enc.strict && (dbuf[1] != 0 || dbuf[2] != 0) {
|
||||
return si, 0, CorruptInputError(si - 2)
|
||||
}
|
||||
}
|
||||
|
||||
return si, dlen - 1, err
|
||||
}
|
||||
|
||||
// DecodeString returns the bytes represented by the base64 string s.
|
||||
func (enc *Encoding) DecodeString(s string) ([]byte, error) {
|
||||
dbuf := make([]byte, enc.DecodedLen(len(s)))
|
||||
n, err := enc.Decode(dbuf, []byte(s))
|
||||
return dbuf[:n], err
|
||||
}
|
||||
|
||||
type decoder struct {
|
||||
err error
|
||||
readErr error // error from r.Read
|
||||
enc *Encoding
|
||||
r io.Reader
|
||||
buf [1024]byte // leftover input
|
||||
nbuf int
|
||||
out []byte // leftover decoded output
|
||||
outbuf [1024 / 4 * 3]byte
|
||||
}
|
||||
|
||||
func (d *decoder) Read(p []byte) (n int, err error) {
|
||||
// Use leftover decoded output from last read.
|
||||
if len(d.out) > 0 {
|
||||
n = copy(p, d.out)
|
||||
d.out = d.out[n:]
|
||||
return n, nil
|
||||
}
|
||||
|
||||
if d.err != nil {
|
||||
return 0, d.err
|
||||
}
|
||||
|
||||
// This code assumes that d.r strips supported whitespace ('\r' and '\n').
|
||||
|
||||
// Refill buffer.
|
||||
for d.nbuf < 4 && d.readErr == nil {
|
||||
nn := len(p) / 3 * 4
|
||||
if nn < 4 {
|
||||
nn = 4
|
||||
}
|
||||
if nn > len(d.buf) {
|
||||
nn = len(d.buf)
|
||||
}
|
||||
nn, d.readErr = d.r.Read(d.buf[d.nbuf:nn])
|
||||
d.nbuf += nn
|
||||
}
|
||||
|
||||
if d.nbuf < 4 {
|
||||
if d.enc.padChar == NoPadding && d.nbuf > 0 {
|
||||
// Decode final fragment, without padding.
|
||||
var nw int
|
||||
nw, d.err = d.enc.Decode(d.outbuf[:], d.buf[:d.nbuf])
|
||||
d.nbuf = 0
|
||||
d.out = d.outbuf[:nw]
|
||||
n = copy(p, d.out)
|
||||
d.out = d.out[n:]
|
||||
if n > 0 || len(p) == 0 && len(d.out) > 0 {
|
||||
return n, nil
|
||||
}
|
||||
if d.err != nil {
|
||||
return 0, d.err
|
||||
}
|
||||
}
|
||||
d.err = d.readErr
|
||||
if d.err == io.EOF && d.nbuf > 0 {
|
||||
d.err = io.ErrUnexpectedEOF
|
||||
}
|
||||
return 0, d.err
|
||||
}
|
||||
|
||||
// Decode chunk into p, or d.out and then p if p is too small.
|
||||
nr := d.nbuf / 4 * 4
|
||||
nw := d.nbuf / 4 * 3
|
||||
if nw > len(p) {
|
||||
nw, d.err = d.enc.Decode(d.outbuf[:], d.buf[:nr])
|
||||
d.out = d.outbuf[:nw]
|
||||
n = copy(p, d.out)
|
||||
d.out = d.out[n:]
|
||||
} else {
|
||||
n, d.err = d.enc.Decode(p, d.buf[:nr])
|
||||
}
|
||||
d.nbuf -= nr
|
||||
copy(d.buf[:d.nbuf], d.buf[nr:])
|
||||
return n, d.err
|
||||
}
|
||||
|
||||
// Decode decodes src using the encoding enc. It writes at most
|
||||
// DecodedLen(len(src)) bytes to dst and returns the number of bytes
|
||||
// written. If src contains invalid base64 data, it will return the
|
||||
// number of bytes successfully written and CorruptInputError.
|
||||
// New line characters (\r and \n) are ignored.
|
||||
func (enc *Encoding) Decode(dst, src []byte) (n int, err error) {
|
||||
if len(src) == 0 {
|
||||
return 0, nil
|
||||
}
|
||||
|
||||
// Lift the nil check outside of the loop. enc.decodeMap is directly
|
||||
// used later in this function, to let the compiler know that the
|
||||
// receiver can't be nil.
|
||||
_ = enc.decodeMap
|
||||
|
||||
si := 0
|
||||
for strconv.IntSize >= 64 && len(src)-si >= 8 && len(dst)-n >= 8 {
|
||||
src2 := src[si : si+8]
|
||||
if dn, ok := assemble64(
|
||||
enc.decodeMap[src2[0]],
|
||||
enc.decodeMap[src2[1]],
|
||||
enc.decodeMap[src2[2]],
|
||||
enc.decodeMap[src2[3]],
|
||||
enc.decodeMap[src2[4]],
|
||||
enc.decodeMap[src2[5]],
|
||||
enc.decodeMap[src2[6]],
|
||||
enc.decodeMap[src2[7]],
|
||||
); ok {
|
||||
binary.BigEndian.PutUint64(dst[n:], dn)
|
||||
n += 6
|
||||
si += 8
|
||||
} else {
|
||||
var ninc int
|
||||
si, ninc, err = enc.decodeQuantum(dst[n:], src, si)
|
||||
n += ninc
|
||||
if err != nil {
|
||||
return n, err
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for len(src)-si >= 4 && len(dst)-n >= 4 {
|
||||
src2 := src[si : si+4]
|
||||
if dn, ok := assemble32(
|
||||
enc.decodeMap[src2[0]],
|
||||
enc.decodeMap[src2[1]],
|
||||
enc.decodeMap[src2[2]],
|
||||
enc.decodeMap[src2[3]],
|
||||
); ok {
|
||||
binary.BigEndian.PutUint32(dst[n:], dn)
|
||||
n += 3
|
||||
si += 4
|
||||
} else {
|
||||
var ninc int
|
||||
si, ninc, err = enc.decodeQuantum(dst[n:], src, si)
|
||||
n += ninc
|
||||
if err != nil {
|
||||
return n, err
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for si < len(src) {
|
||||
var ninc int
|
||||
si, ninc, err = enc.decodeQuantum(dst[n:], src, si)
|
||||
n += ninc
|
||||
if err != nil {
|
||||
return n, err
|
||||
}
|
||||
}
|
||||
return n, err
|
||||
}
|
||||
|
||||
// assemble32 assembles 4 base64 digits into 3 bytes.
|
||||
// Each digit comes from the decode map, and will be 0xff
|
||||
// if it came from an invalid character.
|
||||
func assemble32(n1, n2, n3, n4 byte) (dn uint32, ok bool) {
|
||||
// Check that all the digits are valid. If any of them was 0xff, their
|
||||
// bitwise OR will be 0xff.
|
||||
if n1|n2|n3|n4 == 0xff {
|
||||
return 0, false
|
||||
}
|
||||
return uint32(n1)<<26 |
|
||||
uint32(n2)<<20 |
|
||||
uint32(n3)<<14 |
|
||||
uint32(n4)<<8,
|
||||
true
|
||||
}
|
||||
|
||||
// assemble64 assembles 8 base64 digits into 6 bytes.
|
||||
// Each digit comes from the decode map, and will be 0xff
|
||||
// if it came from an invalid character.
|
||||
func assemble64(n1, n2, n3, n4, n5, n6, n7, n8 byte) (dn uint64, ok bool) {
|
||||
// Check that all the digits are valid. If any of them was 0xff, their
|
||||
// bitwise OR will be 0xff.
|
||||
if n1|n2|n3|n4|n5|n6|n7|n8 == 0xff {
|
||||
return 0, false
|
||||
}
|
||||
return uint64(n1)<<58 |
|
||||
uint64(n2)<<52 |
|
||||
uint64(n3)<<46 |
|
||||
uint64(n4)<<40 |
|
||||
uint64(n5)<<34 |
|
||||
uint64(n6)<<28 |
|
||||
uint64(n7)<<22 |
|
||||
uint64(n8)<<16,
|
||||
true
|
||||
}
|
||||
|
||||
type newlineFilteringReader struct {
|
||||
wrapped io.Reader
|
||||
}
|
||||
|
||||
func (r *newlineFilteringReader) Read(p []byte) (int, error) {
|
||||
n, err := r.wrapped.Read(p)
|
||||
for n > 0 {
|
||||
offset := 0
|
||||
for i, b := range p[:n] {
|
||||
if b != '\r' && b != '\n' {
|
||||
if i != offset {
|
||||
p[offset] = b
|
||||
}
|
||||
offset++
|
||||
}
|
||||
}
|
||||
if offset > 0 {
|
||||
return offset, err
|
||||
}
|
||||
// Previous buffer entirely whitespace, read again
|
||||
n, err = r.wrapped.Read(p)
|
||||
}
|
||||
return n, err
|
||||
}
|
||||
|
||||
// NewDecoder constructs a new base64 stream decoder.
|
||||
func NewDecoder(enc *Encoding, r io.Reader) io.Reader {
|
||||
return &decoder{enc: enc, r: &newlineFilteringReader{r}}
|
||||
}
|
||||
|
||||
// DecodedLen returns the maximum length in bytes of the decoded data
|
||||
// corresponding to n bytes of base64-encoded data.
|
||||
func (enc *Encoding) DecodedLen(n int) int {
|
||||
if enc.padChar == NoPadding {
|
||||
// Unpadded data may end with partial block of 2-3 characters.
|
||||
return n * 6 / 8
|
||||
}
|
||||
// Padded base64 should always be a multiple of 4 characters in length.
|
||||
return n / 4 * 3
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user