public ProjectFileReader(Stream stream, OnInputPassword inputPassword = null)
{
reader = new BinaryReader(stream, Encoding.GetEncoding("gbk"));
int magic1 = reader.ReadInt32();
int magic2 = reader.ReadInt32();
if (magic1 == 0x454C5457) //WTLE
{
if (magic2 != 0x00020001)
{
throw new Exception("不支持此类加密文件");
}
string tip = reader.ReadStringWithLengthPrefix();
string password = inputPassword?.Invoke(tip);
if (string.IsNullOrEmpty(password))
{
throw new Exception("没有输入密码 或 未正确响应InputPassword事件");
}
var cryptECReadStream = new CryptECReadStream(stream, password, stream.Position);
reader = new BinaryReader(cryptECReadStream, Encoding.GetEncoding("gbk"));
if (!reader.ReadBytes(32).SequenceEqual(cryptECReadStream.PasswordHash_ASCII))
{
throw new Exception("密码错误");
}
cryptEc = true;
magic1 = reader.ReadInt32();
magic2 = reader.ReadInt32();
}
if (magic1 != 0x54574E43 || magic2 != 0x47525045) //CNWTEPRG
{
throw new Exception("不是易语言工程文件");
}
}
public ProjectFileReader(Stream stream, OnInputPassword inputPassword = null)
{
reader = new BinaryReader(stream, Encoding.GetEncoding("gbk"));
int magic1 = reader.ReadInt32();
int magic2 = reader.ReadInt32();
if (magic1 == 0x454C5457) // WTLE
{
if (magic2 != 0x00020001)
{
throw new Exception("不支持此类加密文件");
}
int tip_bytes = reader.ReadInt32();
string tip = reader.ReadStringWithFixedLength(Encoding.GetEncoding("gbk"), tip_bytes);
string password = inputPassword?.Invoke(tip);
if (string.IsNullOrEmpty(password))
{
throw new Exception("没有输入密码 或 未正确响应InputPassword事件");
}
int lengthOfRead = 4 /* [int]magic1 */ + 4 /* [int]magic2 */ + 4 /* [int]tip_bytes */ + tip_bytes;
var cryptECReadStream = new CryptECReadStream(stream, password, lengthOfRead, lengthOfRead);
reader = new BinaryReader(cryptECReadStream);
if (!reader.ReadBytes(32).SequenceEqual(cryptECReadStream.PasswordHash))
{
throw new Exception("密码错误");
}
CryptEc = true;
magic1 = reader.ReadInt32();
magic2 = reader.ReadInt32();
}
if (magic1 != 0x54574E43 || magic2 != 0x47525045) // CNWTEPRG
{
throw new Exception("不是易语言工程文件");
}
}