Описание программы (1061423), страница 2
Текст из файла (страница 2)
PFileStream.Dispose();
ChisloPovtorov = 0;
}
NAK();
}
else
{
byte[] DekMes = Dekodir(message, 4, "1011");
if (DekMes[1] == Convert.ToByte('A'))
{
ChisloPovtorov = 0;
ComPort.RtsEnable = false;
if ((ZagS == true) & (InfS == true) & (Podtv == false))
{
ZagR = false;
InfR = false;
ZagS = false;
InfS = false;
UIContext.Send(d => progressBar1.Visibility = Visibility.Hidden, null);
UIContext.Send(d => button1.IsEnabled = true, null);
UIContext.Send(d => MenuItem_Action.IsEnabled = true, null);
MessageBox.Show("Файл передан!");
SFileStream.Close();
SFileStream.Dispose();
}
if ((ZagS == true) & (InfS == false) & (Podtv == true))
{
UIContext.Send(d => progressBar1.Value++, null);
p = SFileStream.Position;
long k = SFileStream.Length - p;
if (k > 0)
{
byte[] inf;
if (k > 50)
{
inf = new byte[50];
for (int i = 0; i < 50; i++)
{
inf[i] = Convert.ToByte(SFileStream.ReadByte());
}
}
else
{
inf = new byte[k];
for (int i = 0; i < k; i++)
{
inf[i] = Convert.ToByte(SFileStream.ReadByte());
}
}
byte[] telegram = Kodir(Upakovat(inf, 'I', inf.Count()), 4, "1011");
ComPort.RtsEnable = false;
Podtv = true;
ComPort.Write(telegram, 0, telegram.Count());
Thread.Sleep(100);
ComPort.RtsEnable = true;
}
else
{
InfS = true;
Podtv = false;
EOT();
}
}
if ((ZagS == false) & (Podtv == true))
{
ZagS = true;
}
}
if (DekMes[1] == Convert.ToByte('R'))
{
ChisloPovtorov++;
if (ChisloPovtorov >= 5)
{
UIContext.Send(d => progressBar1.Visibility = Visibility.Hidden, null);
UIContext.Send(d => MenuItem_Action.IsEnabled = true, null);
UIContext.Send(d => button1.IsEnabled = true, null);
MessageBox.Show("Во время передачи возникла ошибка!\nПередача прервана!");
ZagR = false;
InfR = false;
ZagS = false;
InfS = false;
ChisloPovtorov = 0;
SFileStream.Close();
SFileStream.Dispose();
}
else
{
if (ZagS == true)
{
byte[] inf;
long k = SFileStream.Length - p;
SFileStream.Position = p;
if (k > 50)
{
inf = new byte[50];
for (int i = 0; i < 50; i++)
{
inf[i] = Convert.ToByte(SFileStream.ReadByte());
}
}
else
{
inf = new byte[k];
for (int i = 0; i < k; i++)
{
inf[i] = Convert.ToByte(SFileStream.ReadByte());
}
}
byte[] telegram = Kodir(Upakovat(inf, 'I', inf.Count()), 4, "1011");
ComPort.RtsEnable = false;
Podtv = true;
ComPort.Write(telegram, 0, telegram.Count());
Thread.Sleep(100);
ComPort.RtsEnable = true;
}
else
{
string FileName = SourcePath.Substring(SourcePath.LastIndexOf('\\') + 1);
byte[] Zagolovok = new byte[FileName.Count()];
for (int i = 0; i < FileName.Count(); i++)
{
Zagolovok[i] = Convert.ToByte(FileName[i]);
}
byte[] telegram = Kodir(Upakovat(Zagolovok, 'I', Zagolovok.Count()), 4, "1011");
ComPort.RtsEnable = false;
Podtv = true;
ComPort.Write(telegram, 0, telegram.Count());
Thread.Sleep(100);
ComPort.RtsEnable = true;
}
}
}
if (DekMes[1] == Convert.ToByte('Y'))
{
UIContext.Send(d => button1.IsEnabled = false, null);
UIContext.Send(d => MenuItem_Action.IsEnabled = false, null);
UIContext.Send(d => progressBar1.Visibility = Visibility.Visible, null);
byte[] inf;
p = SFileStream.Position;
long k = SFileStream.Length - p;
if (k > 50)
{
inf = new byte[50];
for (int i = 0; i < 50; i++)
{
inf[i] = Convert.ToByte(SFileStream.ReadByte());
}
}
else
{
inf = new byte[k];
for (int i = 0; i < k; i++)
{
inf[i] = Convert.ToByte(SFileStream.ReadByte());
}
}
Podtv = false;
byte[] telegram = Kodir(Upakovat(inf, 'I', inf.Count()), 4, "1011");
ComPort.RtsEnable = false;
Podtv = true;
ComPort.Write(telegram, 0, telegram.Count());
Thread.Sleep(100);
ComPort.RtsEnable = true;
}
if (DekMes[1] == Convert.ToByte('N'))
{
MessageBox.Show("Принимающая сторона отказывается принимать файл!");
SFileStream.Close();
SFileStream.Dispose();
ZagR = false;
InfR = false;
ZagS = false;
InfS = false;
}
if (DekMes[1] == Convert.ToByte('E'))
{
InfR = true;
UIContext.Send(d => label4.Visibility = Visibility.Hidden, null);
UIContext.Send(d => MenuItem_Action.IsEnabled = true, null);
UIContext.Send(d => button1.IsEnabled = true, null);
MessageBox.Show("Файл принят!");
ACK();
ZagR = false;
InfR = false;
ZagS = false;
InfS = false;
PFileStream.Close();
PFileStream.Dispose();
}
if (DekMes[1] == Convert.ToByte('I'))
{
if (DekMes.Count() == DekMes[2] + 4)
{
if (ZagR == false)
{
for (int i = 0; i < Convert.ToInt32(DekMes[2]); i++)
{
mess = mess + Convert.ToChar(DekMes[3 + i]);
}
ZagR = true;
ACK();
if (MessageBox.Show("Принять файл " + mess + "?", "Согласие на передачу", MessageBoxButton.YesNo) == MessageBoxResult.Yes)
{
if (Sohranenie(mess) == true)
{
ZagR = true;
UIContext.Send(d => button1.IsEnabled = false, null);
UIContext.Send(d => MenuItem_Action.IsEnabled = false, null);
UIContext.Send(d => label4.Visibility = Visibility.Visible, null);
YES();
}
else
{
NO();
ZagR = false;
InfR = false;
ZagS = false;
InfS = false;
}
}
else
{
NO();
ZagR = false;
InfR = false;
ZagS = false;
InfS = false;
}
}
else
{
ACK();
PFileStream.Write(DekMes, 3, Convert.ToInt32(DekMes[2]));
}
}
else
{
ChisloPovtorov++;
if (ChisloPovtorov >= 5)
{
UIContext.Send(d => label4.Visibility = Visibility.Hidden, null);
UIContext.Send(d => MenuItem_Action.IsEnabled = true, null);
UIContext.Send(d => button1.IsEnabled = true, null);
MessageBox.Show("Во время передачи возникла ошибка!\nПередача прервана!");
ZagR = false;
InfR = false;
ZagS = false;
InfS = false;
ChisloPovtorov = 0;
PFileStream.Close();
PFileStream.Dispose();
}
NAK();
}
}
}
}
}
}
}
void ACK()
{
ComPort.RtsEnable = false;
ComPort.Write(Kodir(Upakovat('A'), 4, "1011"), 0, Kodir(Upakovat('A'), 4, "1011").Count());
ComPort.RtsEnable = true;
}
void NAK()
{
ComPort.RtsEnable = false;
ComPort.Write(Kodir(Upakovat('R'), 4, "1011"), 0, Kodir(Upakovat('R'), 4, "1011").Count());
ComPort.RtsEnable = true;
}
void YES()
{
ComPort.RtsEnable = false;
ComPort.Write(Kodir(Upakovat('Y'), 4, "1011"), 0, Kodir(Upakovat('Y'), 4, "1011").Count());
ComPort.RtsEnable = true;
}
void NO()
{
ComPort.RtsEnable = false;
ComPort.Write(Kodir(Upakovat('N'), 4, "1011"), 0, Kodir(Upakovat('N'), 4, "1011").Count());
ComPort.RtsEnable = true;
}
void EOT()
{
ComPort.RtsEnable = false;
ComPort.Write(Kodir(Upakovat('E'), 4, "1011"), 0, Kodir(Upakovat('E'), 4, "1011").Count());
ComPort.RtsEnable = true;
}
bool? Sohranenie(string Zagolovok)
{
SaveFileDialog purposeBrowse = new SaveFileDialog();
purposeBrowse.AddExtension = true;
purposeBrowse.Title = "Выберите место для сохранения файла";
purposeBrowse.FileName = Zagolovok;
bool? BrowseWr = purposeBrowse.ShowDialog();
if (BrowseWr == true)
{
PurposePath = purposeBrowse.FileName;
PFileStream = new FileStream(PurposePath, FileMode.Create, FileAccess.Write);
}
return BrowseWr;
}
byte[] Upakovat(char Type)
{
byte[] VByte;
if (Type == 'A' || Type == 'R' || Type == 'Y' || Type == 'N' || Type == 'E')
{
VByte = new byte[3];
VByte[0] = Byte.Parse("FF", System.Globalization.NumberStyles.AllowHexSpecifier);
VByte[1] = Convert.ToByte(Type);
VByte[2] = Byte.Parse("FF", System.Globalization.NumberStyles.AllowHexSpecifier);
}
else
{
VByte = new byte[0];
}
return VByte;
}
byte[] Upakovat(byte[] InfByte, char Type, long Length)
{
byte[] VByte;
if (Type == 'I')
{
VByte = new byte[Length + 4];
VByte[0] = Byte.Parse("FF", System.Globalization.NumberStyles.AllowHexSpecifier);
VByte[1] = Convert.ToByte(Type);
VByte[2] = Convert.ToByte(Length);
for (int i = 3, j = 0; i < Length + 3; i++, j++)
{
VByte[i] = InfByte[j];
}
VByte[Length + 3] = Byte.Parse("FF", System.Globalization.NumberStyles.AllowHexSpecifier);
}
else
{
VByte = new byte[0];
}
return VByte;
}
byte[] Kodir(byte[] Ish, int k, string PorPolinom)
{
byte[] Vih;
int n = Ish.Count();
string s = "";
string p = "";
string s1 = "";
for (int i = 0; i < n; i++)
{
s1 = Convert.ToString(Ish[i], 2);
for (int j = 0; s1.Count() < 8; j++)
{
s1 = "0" + s1;
}
s = s + s1;
}
string Nuli = "";
for (int i = 0; i < PorPolinom.Count() - 1; i++)
{
Nuli = Nuli + "0";
}
for (int inach = 0, ikon = 0; ikon < s.Count(); ikon++)
{
if ((ikon + 1) % k == 0)
{
p = p + s.Substring(inach, k) + VichOstatka(s.Substring(inach, k) + Nuli, PorPolinom);
inach = ikon + 1;
}
}
int U = 8 - p.Count() % 8;
for (int i = 0; i < U; i++)
{
p = p + "0";
}
Vih = new byte[p.Count() / 8];
for (int i = 0; i < p.Count() / 8; i++)
{
Vih[i] = Convert.ToByte(p.Substring(8 * i, 8), 2);
}
return Vih;
}
string VichOstatka(string Delimoe, string PorPolinom)
{
string Chastnoe;
int n = PorPolinom.Count();
for (int i = 0; i < Delimoe.Count() - n + 1; i++)
{
if (Delimoe[i] == PorPolinom[0])
{
Delimoe = Delimoe.Remove(i, 1);
Delimoe = Delimoe.Insert(i, "0");
for (int j = 1; j < n; j++)
{
if (Delimoe[i + j] == PorPolinom[j])
{
Delimoe = Delimoe.Remove(i + j, 1);
Delimoe = Delimoe.Insert(i + j, "0");
}
else
{
Delimoe = Delimoe.Remove(i + j, 1);
Delimoe = Delimoe.Insert(i + j, "1");
}
}
}
}
Chastnoe = Delimoe.Substring(Delimoe.Count() - n + 1);
return Chastnoe;
}
byte[] Dekodir(string Ish, int k, string PorPolinom)
{
byte[] Vih;
string p = "";
for (int i = 0; i < Ish.Count() - k - PorPolinom.Count() + 1; i += k + PorPolinom.Count() - 1)
{
p = p + Ish.Substring(i, k);
}
Vih = new byte[p.Count() / 8];
for (int i = 0; i < p.Count() / 8; i++)
{
Vih[i] = Convert.ToByte(p.Substring(8 * i, 8), 2);
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