public IActionResult Upload()
{
var file = Request.Form.Files[0];
string file_nameN = Request.Form["nombre"];
string type_cipher = Request.Form["tipo"];
//lectura archivo
var folderName = Path.Combine("Resources", "Files");
var pathToSave = Path.Combine(Directory.GetCurrentDirectory(), folderName);
if (!Directory.Exists(pathToSave))
{
Directory.CreateDirectory(pathToSave);
}
string extension = Path.GetExtension(file.FileName);
var buffer = new byte[Data.BufferLength];
if (extension == ".txt")
{
if (file.Length > 0)
{
var fileName = ContentDispositionHeaderValue.Parse(file.ContentDisposition).FileName.Trim('"');
var fullPath = Path.Combine(pathToSave, fileName);
var dbPath = Path.Combine(folderName, fileName);
file_nameN = file_nameN + ".txt";
string fullPathC = Path.Combine(pathToSave, file_nameN);
var dbPathH = Path.Combine(folderName, file_nameN);
if (type_cipher == "Cesar")
{
string clave = Request.Form["clave"];
int cl = 0;
bool result = int.TryParse(clave, out cl);
Cesar cif = new Cesar();
cif.LlenarDiccionarios();
if (result == false) //la clave no es númerica
{
cif.LlenarClave(clave);
}
else //la clave es númerica
{
cif.LlenarClaveInt(cl);
}
//esto se repite en cada if
using (var stream = new FileStream(fullPathC, FileMode.Create))
{
//ya se creó el archivo
}
using (var stream = new FileStream(fullPath, FileMode.Create))
{
file.CopyTo(stream);
}
using (var stream = new FileStream(fullPath, FileMode.Open))
{
using (BinaryReader br = new BinaryReader(stream))
{
while (br.BaseStream.Position != br.BaseStream.Length)
{
buffer = br.ReadBytes(Data.BufferLength); //llenar el buffer
cif.DesCifrar(buffer);
cif.EscribirCifrado(fullPathC);
}
}
}
var stream1 = new FileStream(fullPathC, FileMode.Open);
return(File(stream1, System.Net.Mime.MediaTypeNames.Application.Octet, file_nameN));
}
if (type_cipher == "ZigZag")
{
ZigZag cif = new ZigZag();
int niveles = Convert.ToInt32(Request.Form["clave"]);
long con = 0;
//esto se repite en cada if
using (var stream = new FileStream(fullPathC, FileMode.Create))
{
//ya se creó el archivo
}
using (var stream = new FileStream(fullPath, FileMode.Create))
{
file.CopyTo(stream);
}
using (var stream = new FileStream(fullPath, FileMode.Open))
{
using (BinaryReader br = new BinaryReader(stream))
{
while (br.BaseStream.Position != br.BaseStream.Length)
{
buffer = br.ReadBytes(Data.BufferLength); //llenar el buffer
cif.InicializarLista(niveles);
if (buffer.Length == 1000)
{
byte l = br.ReadByte();
cif.aux = Convert.ToInt32(l);
}
if (cif.aux != 0)
{
byte[] aux = new byte[cif.aux];
aux = br.ReadBytes(cif.aux);
byte[] auxi = new byte[Data.BufferLength + cif.aux];
System.Buffer.BlockCopy(buffer, 0, auxi, 0, buffer.Length);
System.Buffer.BlockCopy(aux, 0, auxi, 0, aux.Length);
buffer = new byte[auxi.Length];
System.Buffer.BlockCopy(auxi, 0, buffer, 0, buffer.Length);
}
cif.CalcularM(niveles, buffer.Length);
cif.AsignarCanNiveles(niveles);
cif.DesCifrar(niveles, buffer);
cif.DesCifrarE(niveles);
cif.EscribirDesCifradoZ(fullPathC);
con = con + buffer.Length + cif.aux;
}
}
}
var stream1 = new FileStream(fullPathC, FileMode.Open);
return(File(stream1, System.Net.Mime.MediaTypeNames.Application.Octet, file_nameN));
}
if (type_cipher == "Ruta_Vertical")
{
int row = Convert.ToInt32(Request.Form["fila"]);
int column = Convert.ToInt32(Request.Form["columna"]);
int total = row * column; //cantidad de bytes a leer o que van en la matriz
buffer = new byte[Data.BufferLength];
Vertical cif = new Vertical();
//esto se repite en cada if
using (var stream = new FileStream(fullPathC, FileMode.Create))
{
//ya se creó el archivo
}
using (var stream = new FileStream(fullPath, FileMode.Create))
{
file.CopyTo(stream);
}
using (var stream = new FileStream(fullPath, FileMode.Open))
{
using (BinaryReader br = new BinaryReader(stream))
{
while (br.BaseStream.Position != br.BaseStream.Length)
{
buffer = br.ReadBytes(total);
cif.Decipher(buffer, column, row, fullPathC);
}
}
}
var stream1 = new FileStream(fullPathC, FileMode.Open);
return(File(stream1, System.Net.Mime.MediaTypeNames.Application.Octet, file_nameN));
}
if (type_cipher == "Ruta_Espiral")
{
return(BadRequest());
}
else
{
return(StatusCode(3, "El tipo de cifrado ingresado no es valido para ruta"));
}
}
else
{
return(BadRequest());
}
}
else
{
return(BadRequest());
}
}
