protected override async Task WriteAsync(byte[] buffer, int offset, int count)
{
using (_commandsClient = NetworkClientFactory.CreateTcpClient())
{
Uri connectionUri = ConnectionParameters.ConnectionUri;
int httpPort = connectionUri.Port != -1 ? connectionUri.Port : Constants.DefaultHttpPort;
await _commandsClient.ConnectAsync(connectionUri.Host, httpPort);
string base64CodedCommandString = Convert.ToBase64String(buffer, offset, count);
byte[] base64CommandBytes = Encoding.ASCII.GetBytes(base64CodedCommandString);
string request = ComposePostRequest(base64CommandBytes);
byte[] requestBytes = Encoding.ASCII.GetBytes(request);
ArraySegment <byte>[] sendList =
{
new ArraySegment <byte>(requestBytes),
new ArraySegment <byte>(base64CommandBytes)
};
await _commandsClient.SendAsync(sendList, SocketFlags.None);
}
}
public override async Task ConnectAsync(CancellationToken token)
{
_tcpClient = NetworkClientFactory.CreateTcpClient();
Uri connectionUri = ConnectionParameters.ConnectionUri;
int rtspPort = connectionUri.Port != -1 ? connectionUri.Port : Constants.DefaultRtspPort;
await _tcpClient.ConnectAsync(connectionUri.Host, rtspPort);
_remoteEndPoint = _tcpClient.RemoteEndPoint;
_networkStream = new NetworkStream(_tcpClient, false);
}
public override async Task ConnectAsync(CancellationToken token)
{
_commandCounter = 0;
_sessionCookie = Guid.NewGuid().ToString("N").Substring(0, 10);
_streamDataClient = NetworkClientFactory.CreateTcpClient();
Uri connectionUri = ConnectionParameters.ConnectionUri;
int httpPort = connectionUri.Port != -1 ? connectionUri.Port : Constants.DefaultHttpPort;
await _streamDataClient.ConnectAsync(connectionUri.Host, httpPort);
_remoteEndPoint = _streamDataClient.RemoteEndPoint;
_dataNetworkStream = new NetworkStream(_streamDataClient, false);
string request = ComposeGetRequest();
byte[] requestBytes = Encoding.ASCII.GetBytes(request);
await _dataNetworkStream.WriteAsync(requestBytes, 0, requestBytes.Length, token);
var buffer = new byte[Constants.MaxResponseHeadersSize];
int read = await ReadUntilEndOfHeadersAsync(_dataNetworkStream, buffer);
var ms = new MemoryStream(buffer, 0, read);
var streamReader = new StreamReader(ms, Encoding.ASCII);
string responseLine = streamReader.ReadLine();
if (responseLine == null)
{
throw new HttpBadResponseException("Empty response");
}
string[] tokens = responseLine.Split(' ');
if (tokens.Length != 3)
{
throw new HttpRequestException("Invalid first response line");
}
HttpStatusCode statusCode = (HttpStatusCode)int.Parse(tokens[1]);
if (statusCode == HttpStatusCode.OK)
{
return;
}
if (statusCode == HttpStatusCode.Unauthorized &&
!ConnectionParameters.Credentials.IsEmpty() &&
_authenticator == null)
{
NameValueCollection headers = HeadersParser.ParseHeaders(streamReader);
string authenticateHeader = headers.Get(WellKnownHeaders.WwwAuthenticate);
if (string.IsNullOrEmpty(authenticateHeader))
{
throw new HttpBadResponseCodeException(statusCode);
}
_authenticator = Authenticator.Create(ConnectionParameters.Credentials, authenticateHeader);
_streamDataClient.Dispose();
await ConnectAsync(token);
return;
}
throw new HttpBadResponseCodeException(statusCode);
}