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chore(QMCv2): Rename old files

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MengYX
2021-12-13 22:55:31 +08:00
parent 38648d57e6
commit 8cc7f66640
3 changed files with 0 additions and 0 deletions
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128
algo/qmc/qmc.go
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@ -1,128 +0,0 @@
package qmc
import (
"encoding/base64"
"encoding/binary"
"errors"
"github.com/unlock-music/cli/algo/common"
)
var (
ErrQmcFileLength = errors.New("invalid qmc file length")
ErrQmcKeyDecodeFailed = errors.New("base64 decode qmc key failed")
ErrQmcKeyLength = errors.New("unexpected decoded qmc key length")
)
type Decoder struct {
file []byte
maskDetector func(encodedData []byte) (*Key256Mask, error)
mask *Key256Mask
audioExt string
key []byte
audio []byte
}
func NewMflac256Decoder(data []byte) common.Decoder {
return &Decoder{file: data, maskDetector: detectMflac256Mask, audioExt: "flac"}
}
func NewMgg256Decoder(data []byte) common.Decoder {
return &Decoder{file: data, maskDetector: detectMgg256Mask, audioExt: "ogg"}
}
func (d *Decoder) Validate() error {
if nil != d.mask {
return nil
}
if nil != d.maskDetector {
if err := d.validateKey(); err != nil {
return err
}
var err error
d.mask, err = d.maskDetector(d.file)
return err
}
return errors.New("no mask or mask detector found")
}
func (d *Decoder) validateKey() error {
lenData := len(d.file)
if lenData < 4 {
return ErrQmcFileLength
}
keyLen := binary.LittleEndian.Uint32(d.file[lenData-4:])
if lenData < int(keyLen+4) {
return ErrQmcFileLength
}
var err error
d.key, err = base64.StdEncoding.DecodeString(
string(d.file[lenData-4-int(keyLen) : lenData-4]))
if err != nil {
return ErrQmcKeyDecodeFailed
}
if len(d.key) != 272 {
return ErrQmcKeyLength
}
d.file = d.file[:lenData-4-int(keyLen)]
return nil
}
func (d *Decoder) Decode() error {
d.audio = d.mask.Decrypt(d.file)
return nil
}
func (d Decoder) GetCoverImage() []byte {
return nil
}
func (d Decoder) GetAudioData() []byte {
return d.audio
}
func (d Decoder) GetAudioExt() string {
if d.audioExt != "" {
return "." + d.audioExt
}
return ""
}
func (d Decoder) GetMeta() common.Meta {
return nil
}
func DecoderFuncWithExt(ext string) common.NewDecoderFunc {
return func(file []byte) common.Decoder {
return &Decoder{file: file, audioExt: ext, mask: getDefaultMask()}
}
}
//goland:noinspection SpellCheckingInspection
func init() {
common.RegisterDecoder("qmc0", false, DecoderFuncWithExt("mp3")) //QQ Music Mp3
common.RegisterDecoder("qmc3", false, DecoderFuncWithExt("mp3")) //QQ Music Mp3
common.RegisterDecoder("qmc2", false, DecoderFuncWithExt("m4a")) //QQ Music M4A
common.RegisterDecoder("qmc4", false, DecoderFuncWithExt("m4a")) //QQ Music M4A
common.RegisterDecoder("qmc6", false, DecoderFuncWithExt("m4a")) //QQ Music M4A
common.RegisterDecoder("qmc8", false, DecoderFuncWithExt("m4a")) //QQ Music M4A
common.RegisterDecoder("qmcflac", false, DecoderFuncWithExt("flac")) //QQ Music Flac
common.RegisterDecoder("qmcogg", false, DecoderFuncWithExt("ogg")) //QQ Music Ogg
common.RegisterDecoder("tkm", false, DecoderFuncWithExt("m4a")) //QQ Music Accompaniment M4a
common.RegisterDecoder("bkcmp3", false, DecoderFuncWithExt("mp3")) //Moo Music Mp3
common.RegisterDecoder("bkcflac", false, DecoderFuncWithExt("flac")) //Moo Music Flac
common.RegisterDecoder("666c6163", false, DecoderFuncWithExt("flac")) //QQ Music Weiyun Flac
common.RegisterDecoder("6d7033", false, DecoderFuncWithExt("mp3")) //QQ Music Weiyun Mp3
common.RegisterDecoder("6f6767", false, DecoderFuncWithExt("ogg")) //QQ Music Weiyun Ogg
common.RegisterDecoder("6d3461", false, DecoderFuncWithExt("m4a")) //QQ Music Weiyun M4a
common.RegisterDecoder("776176", false, DecoderFuncWithExt("wav")) //QQ Music Weiyun Wav
common.RegisterDecoder("mgg", false, NewMgg256Decoder) //QQ Music New Ogg
common.RegisterDecoder("mflac", false, NewMflac256Decoder) //QQ Music New Flac
}