int UploadAssetPackage()
{
SendProtocolCode(PROTOCOL_CODES.ACCEPT); //TODO add logic to check if the upload file is too large
string fileName = ReceiveMessage();
SendMessage(generateSASkeytoUpload(username, fileName));
PROTOCOL_CODES reply = receiveProtocolCode();
if (reply == PROTOCOL_CODES.OK)
{
if (db.UploadAssetPackage(username, fileName))
{
SendProtocolCode(PROTOCOL_CODES.OK);
return(1); // all went fine
}
else
{ //something went wrong with adding data to the database
SendProtocolCode(PROTOCOL_CODES.ERROR_NO_DBCONNECTION);
return(-1);
}
}
else if (reply == PROTOCOL_CODES.ERROR)
{//something is wrong with the sas link or upload..
}
return(-1);
}
PROTOCOL_CODES sendRequest(PROTOCOL_CODES code)
{
if (clientSocket == null)
{
return(PROTOCOL_CODES.ERROR);
}
try
{
// Get a stream object for writing.
if (stream.CanWrite)
{
byte[] message = BitConverter.GetBytes((int)code);
stream.Write(message, 0, 4);
stream.Read(bytesFrom, 0, 4); //read the replycode
Int32 reply = BitConverter.ToInt32(bytesFrom, 0);
Console.WriteLine("Client sent request. Received reply:" + ((PROTOCOL_CODES)reply).ToString());
return((PROTOCOL_CODES)reply);
}
}
catch (SocketException socketException)
{
Console.WriteLine("Socket exception: " + socketException);
status = STATUS.ERROR;
return(PROTOCOL_CODES.ERROR);
}
return(PROTOCOL_CODES.ERROR);
}
bool sendProtocolCode(PROTOCOL_CODES code)
{
if (clientSocket == null)
{
return(false);
}
try
{
// Get a stream object for writing.
if (stream.CanWrite)
{
byte[] message = BitConverter.GetBytes((int)code);
stream.Write(message, 0, 4); //read the replycode
Console.WriteLine("Sent protocol code:" + ((PROTOCOL_CODES)code).ToString());
return(true);
}
returnCode = -1;
status = STATUS.ERROR;
return(false);
}
catch (SocketException socketException)
{
Console.WriteLine("Socket exception: " + socketException);
returnCode = -1;
status = STATUS.ERROR;
return(false);
}
}
private void serveClient()
{
while ((true))
{
try
{
while (true)
{
PROTOCOL_CODES code = getRequest();
requestCount = requestCount + 1;
int requestResult = handleRequest(code);
if (requestResult == 0)
{ //client wanted to quit
return;
}
if (requestResult == -1 && status == STATUS.ERROR)
{//error in handling request that wasent trivial
return;
}
}
}
catch (Exception ex)
{
Console.WriteLine("Client " + clientName + "experienced error!: " + ex.ToString());
returnCode = -1;
status = STATUS.ERROR;
}
}
returnCode = 0;
status = STATUS.QUIT;
}
private void ServeClient()
{
while ((true))
{
try
{
while (true)
{
PROTOCOL_CODES code = receiveProtocolCode();
requestCount = requestCount + 1;
if (code == PROTOCOL_CODES.ERROR)
{
server.removeClient(clientName);
Console.WriteLine(clientName + " encountered error!");
return;
}
int requestResult = HandleRequest(code);
if (requestResult == 0)
{ //client wanted to quit
server.removeClient(clientName);
Console.WriteLine(clientName + " has quit! ");
writer.Flush();
reader.Close();
writer.Close();
pingSocket.Close();
clientSocket.Close();
return;
} //requestResult == -1 &&
if (status == STATUS.ERROR)
{//error in handling request that wasnt trivial
server.removeClient(clientName);
Console.WriteLine(clientName + " has crashed!");
return;
}
}
}
catch (Exception ex)
{
Console.WriteLine("Client " + clientName + "experienced error!: " + ex.ToString());
returnCode = -1;
status = STATUS.ERROR;
}
}
returnCode = 0;
status = STATUS.QUIT;
}
PROTOCOL_CODES SendRequest(PROTOCOL_CODES code)
{
try
{
// Get a stream object for writing.
writer.Write((Int32)code);
writer.Flush();
//read the replycode
Int32 reply = reader.ReadInt32();;
Console.WriteLine("Client sent request. Received reply:" + ((PROTOCOL_CODES)reply).ToString());
return((PROTOCOL_CODES)reply);
}
catch (Exception socketException)
{
Console.WriteLine("Socket exception: " + socketException);
status = STATUS.ERROR;
return(PROTOCOL_CODES.ERROR);
}
return(PROTOCOL_CODES.ERROR);
}
bool SendProtocolCode(PROTOCOL_CODES code)
{
try
{
// Get a stream object for writing.
writer.Write((Int32)code);
writer.Flush();
Console.WriteLine("Sent protocol code:" + ((PROTOCOL_CODES)code).ToString());
return(true);
}
catch (Exception socketException)
{
Console.WriteLine("Socket exception: " + socketException);
returnCode = -1;
status = STATUS.ERROR;
return(false);
}
}
//0 is quit -1 error 1 is ok
int HandleRequest(PROTOCOL_CODES request)
{
Int32 bytesToCome;
switch (request)
{
case PROTOCOL_CODES.UPLOAD_ASSETPACKAGE:
return(UploadAssetPackage());
case PROTOCOL_CODES.SENDIMAGE:
return(HandleSendimage());
//loput samalla tavalla
case PROTOCOL_CODES.GET_MY_CONTENTPACKS:
if (FetchContentPacksByUser(username))
{
return(1);
}
return(-1);
case PROTOCOL_CODES.GET_SERIES_IN_PACKAGE:
SendProtocolCode(PROTOCOL_CODES.ACCEPT);
//read how many bytes are incoming
bytesToCome = reader.ReadInt32();
if (bytesToCome < requestMaxSize)
{
SendProtocolCode(PROTOCOL_CODES.ACCEPT);
Byte[] received = ReceiveBytes(bytesToCome);
if (FetchVideoSeriesInPackage(Encoding.UTF8.GetString(received)))
{
return(1);
}
return(-1);
}
else
{
SendProtocolCode(PROTOCOL_CODES.DENY);
return(1);
}
case PROTOCOL_CODES.GET_VIDEOS_IN_SERIES:
SendProtocolCode(PROTOCOL_CODES.ACCEPT);
//read how many bytes are incoming
bytesToCome = reader.ReadInt32();
if (bytesToCome < requestMaxSize)
{
SendProtocolCode(PROTOCOL_CODES.ACCEPT);
Byte[] received = ReceiveBytes(bytesToCome);
if (FetchVideoSeriesInPackage(Encoding.UTF8.GetString(received)))
{
return(1);
}
return(-1);
}
else
{
SendProtocolCode(PROTOCOL_CODES.DENY);
return(1);
}
/**
* HERE IS WHERE YOUR CODE IS NEEDED AND SIMPLE USE CASE INTEGRATES IN
*
*
**/
case PROTOCOL_CODES.UPLOAD_VIDEO:
SendProtocolCode(PROTOCOL_CODES.ACCEPT);
//read how many bytes are incoming (size of videos name)
bytesToCome = reader.ReadInt32();
string filename = Encoding.UTF8.GetString(ReceiveBytes(bytesToCome));
//TODO logic to check if user would go over his upload limit
//--------------------------------------------------------------------------------
//TODO:
//generate the SAS link where the client application can upload the video
//(the link should be limited to work only for that certain IP where the request comes from, and only work for a certain amount of time)
//
//we add all the nesserary stuff to generate SAS access links for viewing the video by others to the database into the videos "data field" which is just a byte array
//
//send the SAS link to the client -- that application then handles the actual uploading of the video the azure storage
////--------------------------------------------------------------------------------
return(-1);
case PROTOCOL_CODES.POST_EDITS:
SendProtocolCode(PROTOCOL_CODES.ACCEPT);
SendBytes(Encoding.UTF8.GetBytes(generateSASkeytoWatch("robert", "SAM_100_0131.mp4")));
return(1);
case PROTOCOL_CODES.REQUEST_VIEW_VIDEO:
SendProtocolCode(PROTOCOL_CODES.ACCEPT);
string msg = ReceiveMessage();
Console.WriteLine(msg);
SendBytes(Encoding.UTF8.GetBytes(generateSASkeytoWatch(msg.Split('/')[0], msg.Split('/')[1])));
//todo sivu videoiden lähettäminen
return(1);
/*SendProtocolCode(PROTOCOL_CODES.ACCEPT);
*
* string videoID = ReceiveMessage(); //user sends the ID of the video he wants to view
*
* byte[][] videoData = db.getVideoData(videoID); //we get the data that is needed to generate the SAS key that lets user view it
*
* string[] reply;
* if (videoData[0].Length == 0)
* {
* SendListString(null);
* return 1; //if the video is not found in the database return 0 its fiiine...
* }
*
*
* string uploader = System.Text.Encoding.UTF8.GetString(videoData[0]);
* string sideVideoLeft = System.Text.Encoding.UTF8.GetString(videoData[1]);
* string sideVideoRight = System.Text.Encoding.UTF8.GetString(videoData[2]);
*
*
* if (sideVideoLeft.Length > 0 || sideVideoRight.Length > 0)
* {//if either of the side videos exist the lenght of the reply array is 3
* reply = new string[3];
* }
* else
* {
* reply = new string[1];
* }
*
* reply[0] = generateSASkeytoWatch(uploader, videoID);
*
* if (sideVideoLeft.Length > 0)
* {
* reply[1] = generateSASkeytoWatch(uploader,sideVideoLeft);
* }
* if (sideVideoRight.Length > 0)
* {
* reply[2] = generateSASkeytoWatch(uploader, sideVideoRight);
* }
*
* SendListString(reply);
* return 0;
*/
case PROTOCOL_CODES.SENDJSON:
SendProtocolCode(PROTOCOL_CODES.ACCEPT);
//read how many bytes are incoming
//bytesToCome = reader.ReadInt32();
string data = reader.ReadString();
try
{
Console.WriteLine("got reply: " + data);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
/*if (bytesToCome < requestMaxSize)
* {
* SendProtocolCode(PROTOCOL_CODES.ACCEPT);
* Byte[] received = ReceiveBytes(bytesToCome);
* Console.WriteLine(System.Text.Encoding.UTF8.GetString(received));
* }
* else
* {
* SendProtocolCode(PROTOCOL_CODES.DENY);
* }*/
return(1);
case PROTOCOL_CODES.QUIT:
//SendProtocolCode(PROTOCOL_CODES.ACCEPT);
bytesToCome = 0;
return(0);
default:
SendProtocolCode(PROTOCOL_CODES.ERROR);
Console.WriteLine("Cannot handle request: " + ((PROTOCOL_CODES)request).ToString());
return(-1);
}
}
//0 is quit -1 error 1 is ok
int handleRequest(PROTOCOL_CODES request)
{
Int32 bytesToCome;
string sasLink;
switch (request)
{
case PROTOCOL_CODES.SENDIMAGE:
return(handleSendimage());
//loput samalla tavalla
case PROTOCOL_CODES.GET_MY_CONTENTPACKS:
if (fetchContentPacksByUser(username))
{
return(1);
}
return(-1);
case PROTOCOL_CODES.GET_SERIES_IN_PACKAGE:
sendProtocolCode(PROTOCOL_CODES.ACCEPT);
stream.Read(bytesFrom, 0, 4); //read how many bytes are incoming
bytesToCome = BitConverter.ToInt32(bytesFrom, 0);
if (bytesToCome < requestMaxSize)
{
sendProtocolCode(PROTOCOL_CODES.ACCEPT);
Byte[] received = receiveBytes(bytesToCome);
if (fetchVideoSeriesInPackage(Encoding.UTF8.GetString(received)))
{
return(1);
}
return(-1);
}
else
{
sendProtocolCode(PROTOCOL_CODES.DENY);
return(1);
}
case PROTOCOL_CODES.GET_VIDEOS_IN_SERIES:
sendProtocolCode(PROTOCOL_CODES.ACCEPT);
stream.Read(bytesFrom, 0, 4); //read how many bytes are incoming
bytesToCome = BitConverter.ToInt32(bytesFrom, 0);
if (bytesToCome < requestMaxSize)
{
sendProtocolCode(PROTOCOL_CODES.ACCEPT);
Byte[] received = receiveBytes(bytesToCome);
if (fetchVideoSeriesInPackage(Encoding.UTF8.GetString(received)))
{
return(1);
}
return(-1);
}
else
{
sendProtocolCode(PROTOCOL_CODES.DENY);
return(1);
}
/**
* HERE IS WHERE YOUR CODE IS NEEDED AND SIMPLE USE CASE INTEGRATES IN
*
*
**/
case PROTOCOL_CODES.UPLOAD_VIDEO:
sendProtocolCode(PROTOCOL_CODES.ACCEPT);
stream.Read(bytesFrom, 0, 4); //read how many bytes are incoming (size of videos name)
bytesToCome = BitConverter.ToInt32(bytesFrom, 0);
string filename = Encoding.UTF8.GetString(receiveBytes(bytesToCome));
//TODO logic to check if user would go over his upload limit
//--------------------------------------------------------------------------------
//TODO:
//generate the SAS link where the client application can upload the video
//(the link should be limited to work only for that certain IP where the request comes from, and only work for a certain amount of time)
//
//we add all the nesserary stuff to generate SAS access links for viewing the video by others to the database into the videos "data field" which is just a byte array
//
//send the SAS link to the client -- that application then handles the actual uploading of the video the azure storage
////--------------------------------------------------------------------------------
sasLink = UploadToAzure(bytesFrom, filename);
return(-1);
case PROTOCOL_CODES.REQUEST_VIEW_VIDEO:
sendProtocolCode(PROTOCOL_CODES.ACCEPT);
stream.Read(bytesFrom, 0, 4);
string videoID = Encoding.UTF8.GetString(bytesFrom); //user sends the ID of the video he wants to view
byte[] videoData = db.getVideoData(videoID); //we get the data that is needed to generate the SAS key that lets user view it
if (videoData != null)
{
//--------------------------------------------------------------------------------
//TODO:
//generate the SAS link from the video data, that is only viewable by that clients IP for a certain amount of time
//
//we add all the nesserary stuff to generate SAS access links for viewing the video by others to the database
//
//send the SAS link to the client -- that application then handles the
////--------------------------------------------------------------------------------
sasLink = UploadToAzure(videoData, videoID);
}
return(-1);
case PROTOCOL_CODES.SENDJSON:
sendProtocolCode(PROTOCOL_CODES.ACCEPT);
Console.WriteLine("awaiting reply");
stream.Read(bytesFrom, 0, 4); //read how many bytes are incoming
bytesToCome = BitConverter.ToInt32(bytesFrom, 0);
Console.WriteLine("got reply");
if (bytesToCome < requestMaxSize)
{
sendProtocolCode(PROTOCOL_CODES.ACCEPT);
Byte[] received = receiveBytes(bytesToCome);
}
else
{
sendProtocolCode(PROTOCOL_CODES.DENY);
}
return(1);
case PROTOCOL_CODES.QUIT:
return(0);
default:
sendProtocolCode(PROTOCOL_CODES.ERROR);
Console.WriteLine("Cannot handle request: " + ((PROTOCOL_CODES)request).ToString());
return(-1);
}
}
