public static ServerReply DELETE(RequestKontext req)
{
if (req.Options.Contains("/") == false)
{
return(BadRequest(req));
}
string[] frag = req.Options.Split('/');
if (frag[1] == "messages" && frag.Length == 3)
{
if (Convert.ToInt32(frag[2]) <= Directory.GetFiles(pfad).Length&& Convert.ToInt32(frag[2]) > 0 && frag[2] != "") //if the index doesn't pass the number of messages
{
int index = Convert.ToInt32(frag[2]) - 1;
string file_on_index = Convert.ToString(Directory.GetFiles(pfad).GetValue(index));
File.Delete(file_on_index);
return(new ServerReply(req.Protocol, "200 OK", "", "text"));
}
else
{
return(OuttaRange(req));
}
}
else
{
return(BadRequest(req));
}
}
public static ServerReply PUT(RequestKontext req)
{
if (req.Options.Contains("/") == false)
{
return(BadRequest(req));
}
string[] frag = req.Options.Split('/');
if (frag[1] == "messages" && frag.Length == 3)
{
if (Convert.ToInt32(frag[2]) <= Directory.GetFiles(pfad).Length&& Convert.ToInt32(frag[2]) > 0 && frag[2] != "")
{
if (req.Body[0] != '\n')
{
string file_on_index;
int index = Convert.ToInt32(frag[2]) - 1;
file_on_index = Convert.ToString(Directory.GetFiles(pfad).GetValue(index));
File.WriteAllText(file_on_index, req.Body);
return(new ServerReply(req.Protocol, "200 OK", "", "text"));
}
else
{
return(BadRequest(req));
}
}
else
{
return(OuttaRange(req));
}
}
else
{
return(BadRequest(req));
}
}
public static ServerReply POST(RequestKontext req)
{
if (req.Options.Contains("/") == false)
{
return(BadRequest(req));
}
string[] frag = req.Options.Split('/');
int num_of_files = Directory.GetFiles(pfad).Length;
if (frag[1] == "messages" && frag.Length == 2)
{
if (req.Body == "")
{
return(BadRequest(req));
}
else
{
string name = "Message " + Convert.ToString(num_of_files + 1) + ".txt";
using (File.Create(pfad + name))
{
}
File.WriteAllText(pfad + name, req.Body);
return(new ServerReply(req.Protocol, "200 OK", Convert.ToString(num_of_files + 1), "text"));
}
}
else
{
return(BadRequest(req));
}
}
public void ClientHandler(TcpClient client)
{
StreamReader stream = new StreamReader(client.GetStream()); // Stream mit den Request/CLient infos
String msg = ""; // Die Infos werden hier gespeichert
//StreamWrite, Flush -> senden, despose -> schließen
if (stream == null)
{
throw new NullReferenceException("NULL VALUE!");
}
while (stream.Peek() != -1) //Peek returned den nächsten Charakter oder -1 wenn keine mehr vorhanden sind
{
msg += stream.ReadLine() + "\n"; //Hier wird der Stream in dem string gespeichert
}
RequestKontext req = RequestKontext.GetRequest(msg);
ServerReply reply = ServerReply.HandlingRequest(req);
using (StreamWriter writer = new StreamWriter(client.GetStream())) //using für Idisposable
{
writer.Write($"{reply.Protocoll} {reply.Status}\r\n");
writer.Write($"Content-Type: {reply.ContentType}\r\n");
writer.Write($"Content-Length: {reply.Data.Length}\r\n");
writer.Write("\r\n");
writer.Write($"{reply.Data}\r\n");
writer.Write("\r\n\r\n");
}
}
public static ServerReply HandlingRequest(RequestKontext req)
{
pfad = "C:\\Users\\titto\\Desktop\\3.Semester\\Software Engineering\\RestServer\\Restful API Ue1\\Messages\\";
if (req == null)
{
return(BadRequest(req));
}
//Header Informationen vom client werden ausgegeben
Console.WriteLine($"Type: {req.Type}");
Console.WriteLine($"Request: {req.Options}");
Console.WriteLine($"Protocoll: {req.Protocol}");
foreach (HeaderInfo tmp in RequestKontext.HeaderInformation)
{
Console.WriteLine($"{tmp.key}:{tmp.value}");
}
///
if (req.Type == "GET")
{
return(GET(req));
}
else if (req.Type == "POST")
{
return(POST(req));
}
else if (req.Type == "DELETE")
{
return(DELETE(req));
}
else if (req.Type == "PUT")
{
return(PUT(req));
}
else
{
return(new ServerReply(req.Protocol, "405 Method Not Allowed", "", "text"));
}
}
public static ServerReply GET(RequestKontext req)
{
if (req.Options.Contains("/") == false) //Get - localhost:123123/messages/1
{
return(new ServerReply(req.Protocol, "404 Not Found", "", "text"));
}
string[] frag = req.Options.Split('/'); //---/messages
if (frag[1] == "messages" && frag.Length == 2)
{
string name;
string[] messages = Directory.GetFiles(pfad); //geting all messages (with full path)
//Converting String array into String
StringBuilder tmp = new StringBuilder();
foreach (string value in messages)
{
name = value.Replace(pfad, "");
tmp.Append("Name: ");
tmp.Append(name);
tmp.Append("\n");
tmp.Append("Nachricht:\n");
//getting the message out of the txt file
using (var streamReader = new StreamReader(value, Encoding.UTF8))
{
tmp.Append(streamReader.ReadToEnd());
}
tmp.Append("\n\n");
}
string _return = tmp.ToString();
return(new ServerReply(req.Protocol, "200 OK", _return, "text"));
}
else if (frag[1] == "messages" && frag.Length == 3 && frag[2] != "") // frag[0]="", frag[1]="messages", frag[3]=integer
{
if (Convert.ToInt32(frag[2]) <= Directory.GetFiles(pfad).Length&& frag[2] != "" && Convert.ToInt32(frag[2]) > 0) //if the index doesn't pass the number of messages
{
string file_on_index;
int index = Convert.ToInt32(frag[2]) - 1;
StringBuilder tmp = new StringBuilder();
file_on_index = Convert.ToString(Directory.GetFiles(pfad).GetValue(index));
tmp.Append("Name: ");
tmp.Append(file_on_index.Remove(0, pfad.Length));
tmp.Append("\n");
tmp.Append("Nachricht:\n");
using (var streamReader = new StreamReader(file_on_index, Encoding.UTF8))
{
tmp.Append(streamReader.ReadToEnd());
}
string _return = Convert.ToString(tmp);
return(new ServerReply(req.Protocol, "200 OK", _return, "text"));
}
else
{
return(OuttaRange(req));
}
}
else
{
return(BadRequest(req));
}
}
public static ServerReply OuttaRange(RequestKontext req)
{
return(new ServerReply(req.Protocol, "416 Range Not Satisfiable", "", "text"));
}
public static ServerReply BadRequest(RequestKontext req)
{
return(new ServerReply(req.Protocol, "400 Bad Request", "", "text"));
}
