public static bool TryGetMusicInfo(Tag tag, out The163KeyStruct KeyStruct)
{
if (tag is null)
{
throw new ArgumentNullException(nameof(tag));
}
KeyStruct = new The163KeyStruct();
string the163Key = tag.Comment;
if (!Is163KeyCandidate(the163Key))
{
the163Key = tag.Description;
}
if (!Is163KeyCandidate(the163Key))
{
return(false);
}
try
{
TryGetMusicInfo(the163Key, out KeyStruct);
}
catch
{
return(false);
}
return(true);
}
public static bool TryGetMusicInfo(string the163Key, out The163KeyStruct KeyStruct)
{
if (string.IsNullOrEmpty(the163Key))
{
throw new ArgumentNullException(nameof(the163Key));
}
KeyStruct = new The163KeyStruct();
try
{
the163Key = the163Key.Substring(22);
byte[] byt163Key = Convert.FromBase64String(the163Key);
using (var cryptoTransform = _aes.CreateDecryptor())
byt163Key = cryptoTransform.TransformFinalBlock(byt163Key, 0, byt163Key.Length);
KeyStruct = JsonConvert.DeserializeObject <The163KeyStruct>(Encoding.UTF8.GetString(byt163Key).Substring(6));
}
catch
{
return(false);
}
return(true);
}
/// <summary>
/// 尝试设置163音乐信息到文件
/// </summary>
/// <param name="tag"></param>
/// <param name="trackId"></param>
/// <returns></returns>
public static bool TrySetMusicInfo(Tag tag, NCPlayItem pi)
{
if (tag is null)
{
throw new ArgumentNullException(nameof(tag));
}
try
{
var key = new The163KeyStruct()
{
album = pi.Album.name,
albumId = int.Parse(pi.Album.id),
albumPic = pi.Album.cover,
bitrate = pi.bitrate,
artist = null,
duration = pi.LengthInMilliseconds,
musicId = int.Parse(pi.sid),
musicName = pi.songname
};
key.artist = pi.Artist.Select(t => new List <object>()
{
t.name, int.Parse(t.id)
}).ToList();
string enc = "music:" + JsonConvert.SerializeObject(key);
byte[] toEncryptArray = Encoding.UTF8.GetBytes(enc);
byte[] resultArray;
using (var cryptoTransform = _aes.CreateEncryptor())
{
resultArray = cryptoTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
}
tag.Comment = "163 key(Don't modify):" + Convert.ToBase64String(resultArray, 0, resultArray.Length);
}
catch
{
return(false);
}
return(true);
}
