public async Task OnCompleted(HttpTransfer transfer)
{
await this.notifications.Send(
"Transfer Complete",
$"{transfer.Identifier} complete"
);
}
public async Task OnError(HttpTransfer transfer, Exception ex)
{
await this.notifications.Send(
"Transfer Error",
$"{transfer.Identifier} errored - SORRY!"
);
}
public Task OnCompleted(HttpTransfer transfer)
{
return(Task.Run(() =>
{
Xamarin.Forms.MessagingCenter.Send(this, "UPLOAD_DONE", transfer);
}));
}
public async Task <Screenshot> GetAppScreenShotAsync(Guid appGuid, AppScreenshotType appScreenshotType, AppScreenshotSize appScreenshotSize, int screenShotIndex)
{
return(await HttpTransfer.GetAppScreenshotAsync(
appGuid,
appScreenshotType,
appScreenshotSize,
screenShotIndex));
}
public Task OnError(HttpTransfer transfer, Exception ex)
{
return(Task.Run(() =>
{
System.Diagnostics.Debug.WriteLine(ex.Message);
MessagingCenter.Send(this, "UPLOAD_FAILED", ex);
}));
}
async Task TryUpdate(HttpTransfer transfer)
{
var result = await repository.Remove <SyncItem>(transfer.Identifier);
if (result && this.syncManager.ShowBadgeCount)
{
this.notificationManager.Badge = this.notificationManager.Badge - 1;
}
}
static void ToViewModel(HttpTransferViewModel viewModel, HttpTransfer transfer)
{
// => Math.Round(this.transfer.BytesPerSecond.Bytes().Kilobytes, 2) + " Kb/s";
//public string EstimateMinsRemaining => Math.Round(this.transfer.EstimatedCompletionTime.TotalMinutes, 1) + " min(s)";
//viewModel.EstimateMinsRemaining =
viewModel.PercentComplete = transfer.PercentComplete;
viewModel.PercentCompleteText = $"{transfer.PercentComplete * 100}%";
viewModel.Status = transfer.Status.ToString();
}
static MetricHolder Get(HttpTransfer transfer, Dictionary <string, MetricHolder> metrics)
{
if (!metrics.ContainsKey(transfer.Identifier))
{
metrics.Add(transfer.Identifier, new MetricHolder(transfer.Identifier)
{
LastBytesTransferred = transfer.BytesTransferred,
LastPing = DateTime.UtcNow
});
}
return(metrics[transfer.Identifier]);
}
static HttpTransferMetric Calculate(HttpTransfer transfer, IDictionary <string, MetricHolder> metrics)
{
var holder = metrics[transfer.Identifier];
var elapsed = DateTime.UtcNow - holder.LastPing;
var totalSeconds = (long)elapsed.TotalSeconds;
var xferDiff = transfer.BytesTransferred - holder.LastBytesTransferred;
var bytesPerSecond = xferDiff / totalSeconds;
var rawEta = (transfer.FileSize - transfer.BytesTransferred) / bytesPerSecond;
var metric = new HttpTransferMetric(transfer, bytesPerSecond, TimeSpan.FromSeconds(rawEta));
holder.LastPing = DateTime.UtcNow;
holder.LastBytesTransferred = transfer.BytesTransferred;
return(metric);
}
/// <summary>
/// This method is called by <see cref="MediaServerDevice.WebServer_OnPacketReceiveSink"/>
/// and handles the HTTP-GET or HTTP-GET message requests and provides
/// the appropriate response. In either case, the handler is intended
/// to handle requests for resource URIs that have been mapped to local
/// files using the <see cref="MediaResource.AUTOMAPFILE"/> convention.
/// <para>
/// If a resource cannot be mapped to a local file,
/// then the method will ask upper-layer application logic
/// for a stream object to send in response to the request.
/// This is used primarily in scenarios where the application intentionally
/// specified a contentUri value for a resource that uses the
/// <see cref="MediaResource.AUTOMAPFILE"/> convention but doesn't
/// actually map to a local file. This gives the upper application layer
/// to provide transcoded stream objects or some specialized file stream
/// that is not stored on the local file system.
/// </para>
/// <para>
/// Upper application layers can always opt to leave the stream object
/// blank, effectively indicating that the HTTP-GET or head request
/// cannot be handled because such a file does not exist.
/// </para>
/// </summary>
/// <param name="msg"></param>
/// <param name="session"></param>
private void HandleGetOrHeadRequest(HTTPMessage msg, HTTPSession session)
{
// Format of DirectiveObj will be
// "/[res.m_ResourceID]/[item.ID]/[item.Title].[ext]"
// We want the
bool is404 = true;
Exception problem = null;
string resourceID = null;
string objectID = null;
try
{
DText DirectiveParser = new DText();
DirectiveParser.ATTRMARK = "/";
DirectiveParser[0] = msg.DirectiveObj;
resourceID = DirectiveParser[2];
objectID = DirectiveParser[3];
IDvResource res = this.GetResource(objectID, resourceID);
if (res == null)
{
throw new Error_GetRequestError(msg.DirectiveObj, null);
}
else
{
// attempt to figure otu the local file path and the mime type
string f = MediaResource.AUTOMAPFILE;
string fileName = res.ContentUri.Substring(f.Length);
string type = res.ProtocolInfo.MimeType;
if ((type == null) || (type == "") || (type == "*"))
{
//content-type not known, programmer
//that built content-hierarchy didn't provide one
throw new Error_GetRequestError(msg.DirectiveObj, res);
}
else
{
// must be a get or head request
// check if the file actually exists
if (Directory.Exists(fileName))
{
throw new Error_GetRequestError(msg.DirectiveObj, res);
}
FileNotMapped mapping = new FileNotMapped();
mapping.RequestedResource = res;
mapping.LocalInterface = session.Source.ToString();
mapping.RedirectedStream = null;
if (File.Exists(fileName))
{
// the file exists, so go ahead and send it
mapping.RedirectedStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);
}
else
{
try
{
// the file doesn't exist but the owner of this
// server specified some kind of locally mapped file
// so perhaps they may want to route a stream object themselves
if (this.OnFileNotMapped != null)
{
this.OnFileNotMapped (this, mapping);
}
}
catch (Exception ofnm)
{
mapping.RedirectedStream = null;
}
}
// if the RedirectedStream is blank, then it means
// no stream can be sent in response to the request
if (mapping.RedirectedStream != null)
{
lock (session)
{
// get the intended length, if known
long expectedLength = -1;
if (mapping.OverrideRedirectedStreamLength)
{
expectedLength = mapping.ExpectedStreamLength;
}
else
{
expectedLength = mapping.RedirectedStream.Length;
}
if (String.Compare(msg.Directive, "HEAD", true) == 0)
{
// must be a head request - reply with 200/OK, content type, content length
HTTPMessage head = new HTTPMessage();
head.StatusCode = 200;
head.StatusData = "OK";
head.ContentType = type;
if (expectedLength >= 0)
{
// if we can calculate the length,
// then we provide a content-length and
// also indicate that range requests can be
// handled.
head.OverrideContentLength = true;
string rangeStr = msg.GetTag("RANGE");
if ((rangeStr == null) || (rangeStr == ""))
{
head.AddTag("CONTENT-LENGTH", expectedLength.ToString());
head.AddTag("ACCEPT-RANGES", "bytes");
}
else
{
ArrayList rangeSets = new ArrayList();
head.StatusCode = 206;
AddRangeSets(rangeSets, rangeStr.Trim().ToLower(), expectedLength);
if (rangeSets.Count == 1)
{
head.AddTag("Content-Range", "bytes " + ((HTTPSession.Range)(rangeSets[0])).Position.ToString() + "-" + ((int)(((HTTPSession.Range)(rangeSets[0])).Position+((HTTPSession.Range)(rangeSets[0])).Length-1)).ToString() + "/" + expectedLength.ToString());
head.AddTag("Content-Length", ((HTTPSession.Range)(rangeSets[0])).Length.ToString());
}
}
}
else
{
// can't calculate length => can't do range
head.AddTag("ACCEPT-RANGES", "none");
}
session.Send(head);
is404 = false;
}
else
{
ArrayList rangeSets = new ArrayList();
string rangeStr = msg.GetTag("RANGE");
// Only allow range requests for content where we have the
// entire length and also only for requests that have
// also provided an allowed range.
if ((rangeStr == null) || (rangeStr != ""))
{
if (expectedLength >= 0)
{
// validate the requested ranges; if invalid range
// found, send the entire document...
AddRangeSets(rangeSets, rangeStr.Trim().ToLower(), expectedLength);
}
}
// must be a get request
// create an outgoing transfer that is not visible to UPNP
// GetTransferProgress method, and add the transfer
HttpTransfer transferInfo = new HttpTransfer(false, false, session, res, mapping.RedirectedStream, expectedLength);
this.AddTransfer(session, transferInfo);
if (rangeSets.Count > 0)
{
session.SendStreamObject(mapping.RedirectedStream, (HTTPSession.Range[])rangeSets.ToArray(typeof(HTTPSession.Range)), type);
}
else
{
//start from the beginning
mapping.RedirectedStream.Seek(0, SeekOrigin.Begin);
if (expectedLength >= 0)
{
session.SendStreamObject(mapping.RedirectedStream, expectedLength, type);
}
else
{
session.SendStreamObject(mapping.RedirectedStream, type);
}
}
is404 = false;
}
}
}
}
}
}
catch (Exception error)
{
problem = error;
}
if (is404)
{
StringBuilder sb = new StringBuilder();
sb.Append("File not found.");
sb.AppendFormat("\r\n\tRequested: \"{0}\"", msg.DirectiveObj);
if (objectID != null)
{
sb.AppendFormat("\r\n\tObjectID=\"{0}\"", objectID);
}
if (resourceID != null)
{
sb.AppendFormat("\r\n\tResourceID=\"{0}\"", resourceID);
}
Error_GetRequestError getHeadError = problem as Error_GetRequestError;
if (getHeadError != null)
{
sb.Append("\r\n");
IUPnPMedia mobj = this._GetEntry(objectID);
if (mobj == null)
{
sb.AppendFormat("\r\n\tCould not find object with ID=\"{0}\"", objectID);
}
else
{
sb.AppendFormat("\r\n\tFound object with ID=\"{0}\"", objectID);
sb.Append("\r\n---Metadata---\r\n");
sb.Append(mobj.ToDidl());
}
sb.Append("\r\n");
if (getHeadError.Resource == null)
{
sb.Append("\r\n\tResource is null.");
}
else
{
sb.Append("\r\n\tResource is not null.");
string uri = getHeadError.Resource.ContentUri;
if (uri== null)
{
sb.Append("\r\n\t\tContentUri of resource is null.");
}
else if (uri == "")
{
sb.Append("\r\n\t\tContentUri of resource is empty.");
}
else
{
sb.AppendFormat("\r\n\t\tContentUri of resource is \"{0}\"", uri);
}
}
}
if (problem != null)
{
sb.Append("\r\n");
Exception e = problem;
sb.Append("\r\n!!! Exception information !!!");
while (e != null)
{
sb.AppendFormat("\r\nMessage=\"{0}\".\r\nStackTrace=\"{1}\"", e.Message, e.StackTrace);
e = e.InnerException;
if (e != null)
{
sb.Append("\r\n---InnerException---");
}
}
}
// file has not been found so return a valid HTTP 404 error message
HTTPMessage error = new HTTPMessage();
error.StatusCode = 404;
error.StatusData = "File not found";
error.StringBuffer = sb.ToString();
session.Send(error);
}
}
/// <summary>
/// Method executes when a control point invokes the ContentDirectory.ImportResource action.
/// The method first checks to see if the local URI actually maps to an automapped file
/// and that the remote URI is an HTTP resource.
/// The method then asks upper software layers to accept or reject the request to
/// import a resource from a remote URI to a local URI. Upper software layers reject the request by throwing an exception,
/// preferably a UPnPCustomException. If the request was approved by upper layers,
/// then we do a bunch of stuff that results in the file getting transferred over HTTP.
/// </summary>
/// <param name="SourceURI">the URI where the binary should be obtained</param>
/// <param name="DestinationURI">the URI (that can map to a local file) where the binary should be stored</param>
/// <param name="TransferID">Returns ID for the file transfer.</param>
private void SinkCd_ImportResource(System.Uri SourceURI, System.Uri DestinationURI, out System.UInt32 TransferID)
{
string objectID, resourceID;
// Parse the media and resource IDs from the destination uri.
this.GetObjectResourceIDS(DestinationURI, out objectID, out resourceID);
if ((objectID == "") || (resourceID == ""))
{
throw new Error_NoSuchResource(DestinationURI.ToString());
}
else
{
// TODO: Might consider throwing ane xception in the
// rare case that stupid ass control point says to
// download to a different media server.
}
// ensure that we're doing http
if (SourceURI.Scheme.ToLower().StartsWith("http") == false)
{
throw new Error_NonHttpImport(DestinationURI.ToString());
}
// get the resource object associated with the destination uri
IDvResource res = this.GetResource(objectID, resourceID);
// request application logic to approve the binary transfer;
// Application logic should throw an exception to rject the request.
if (this.OnRequestSaveBinary != null)
{
this.OnRequestSaveBinary(this, res);
}
else
{
throw new Error_InvalidServerConfiguration("ImportResource() cannot be supported until the vendor configures the server correctly.");
}
//
// Grab the file through http-get
//
IPAddress addr = null;
IPHostEntry ihe = null;
IPEndPoint dest = null;
// Attempt to get a routeable IP address for the request
try
{
if(SourceURI.HostNameType == UriHostNameType.Dns)
{
ihe = Dns.GetHostByName(SourceURI.Host);
addr = new IPAddress(ihe.AddressList[0].Address);
}
else
{
addr = IPAddress.Parse(SourceURI.Host);
}
}
catch
{
throw new Error_ConnectionProblem("Could parse or resolve the SourceURI IP address represented by" +SourceURI.ToString());
}
dest = new IPEndPoint(addr, SourceURI.Port);
// Open a socket and connect to the remote IP address and port
System.Net.Sockets.Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
try
{
s.Connect(dest);
}
catch
{
throw new Error_ConnectionProblem("Could not connect to the remote URI " + DestinationURI.ToString());
}
// Do a check to make sure we're not dumping to a directory.
string filename = res.ContentUri.Substring(MediaResource.AUTOMAPFILE.Length);
if (Directory.Exists(filename))
{
throw new Error_ImportError("System error. Resource has been mapped incorrectly. Cannot overwrite a directory with a binary.");
}
// Create an HTTP session for this socket.
// Set things up so that the HTTP-GET will automatically dump
// the body of the message into a binary file that has
// been automatically mapped.
HTTPSession session = new HTTPSession(s, null, null);
this.SetupSessionForTransfer(session);
session.OnHeader += new HTTPSession.ReceiveHeaderHandler(this.GetRequest_OnHeaderReceiveSink);
try
{
session.UserStream = new FileStream(filename, FileMode.Create, FileAccess.Write, FileShare.None);
}
catch
{
throw new Error_ImportError("System busy. Could not open file from local system for writing.");
}
if (session.UserStream == null)
{
throw new Error_ImportError("System error. Cannot write to a null stream.");
}
SessionData sd = (SessionData) session.StateObject;
sd.HttpVer1_1 = false;
// Create the HTTP message that will request the binary.
HTTPMessage msg = new HTTPMessage();
msg.Directive = "GET";
msg.DirectiveObj = HTTPMessage.UnEscapeString(SourceURI.PathAndQuery);
msg.AddTag("HOST", dest.ToString());
msg.Version = "1.0";
// Create an HttpTransfer object that will represent the progress
// of this file transfer and add it to the media server's current
// transfers list.
long expectedLength = 0;
HttpTransfer transferInfo = new HttpTransfer(true, true, session, res, session.UserStream, expectedLength);
this.AddTransfer(session, transferInfo);
TransferID = transferInfo.m_TransferId;
// Go make the request for the file.
session.Send(msg);
this.m_Stats.ImportResource++;
this.FireStatsChange();
}
public async Task <BitmapImage> GetAppBackgroundImageAsync(Guid appGuid)
{
return(await HttpTransfer.GetAppBackgroundImageAsync(appGuid));
}
async Task <HttpTransfer> Download(HttpTransferStore request, CancellationToken ct)
{
HttpTransfer lastTransfer = default;
var status = HttpTransferState.Pending;
var file = new FileInfo(request.LocalFile);
var message = this.Build(request);
var fileSize = 0L;
var bytesTransferred = file.Exists ? file.Length : 0;
var fileMode = file.Exists ? FileMode.Append : FileMode.Create;
Exception? exception = null;
using (var fs = file.Open(fileMode, FileAccess.Write, FileShare.Write))
{
while (!status.IsCompleted() && !ct.IsCancellationRequested)
{
try
{
if (fs.Length > 0)
{
var resumeOffset = fs.Length + 1;
message.Headers.Range = new RangeHeaderValue(resumeOffset, null);
}
var buffer = new byte[65535];
var response = await this.httpClient
.SendAsync(
message,
HttpCompletionOption.ResponseHeadersRead,
ct
)
.ConfigureAwait(false);
response.EnsureSuccessStatusCode();
var inputStream = await response
.Content
.ReadAsStreamAsync()
.ConfigureAwait(false);
var read = inputStream.Read(buffer, 0, buffer.Length);
// status code 206 means restart
if (response.Headers.AcceptRanges == null && fs.Length > 0)
{
// resume not supported, starting over
fs.SetLength(0);
fs.Flush();
bytesTransferred = 0;
}
var i = 0;
while (read > 0 && !ct.IsCancellationRequested)
{
fileSize = response.Content?.Headers?.ContentRange?.Length ?? response.Content?.Headers?.ContentLength ?? 0;
//this.RemoteFileName = response.Content?.Headers?.ContentDisposition?.FileName ?? String.Empty;
////pr.FileSize = response.Content?.Headers?.ContentLength ?? 0; // this will change on resume
bytesTransferred += read;
fs.Write(buffer, 0, read);
fs.Flush();
i++;
if (i % 4 == 0)
{
lastTransfer = new HttpTransfer(
request.Id,
request.Uri,
request.LocalFile,
false,
request.UseMeteredConnection,
null,
fileSize,
bytesTransferred,
HttpTransferState.InProgress
);
this.messageBus.Publish(lastTransfer);
}
read = inputStream.Read(buffer, 0, buffer.Length);
}
status = HttpTransferState.Completed;
}
catch (TaskCanceledException)
{
status = ct.IsCancellationRequested
? HttpTransferState.Canceled
: HttpTransferState.Retrying;
}
catch (IOException ex)
{
if (ex.InnerException is WebException)
{
status = HttpTransferState.Retrying;
}
else
{
exception = ex;
status = HttpTransferState.Error;
}
}
catch (Exception ex)
{
exception = ex;
status = HttpTransferState.Error;
}
lastTransfer = new HttpTransfer(
request.Id,
request.Uri,
request.LocalFile,
true,
request.UseMeteredConnection,
exception,
fileSize,
bytesTransferred,
status
);
this.messageBus.Publish(lastTransfer);
}
}
return(lastTransfer);
}
public void OnError(HttpTransfer transfer, Exception ex)
{
}
/// <summary>
/// Lock the set of existing transfers for the entire server.
/// Add the new transfer to the session's state object, for future reference.
/// Obtain a unique transfer ID
/// Add the new transfer to the set of existing transfers for the entire server.
/// Unlock the set of existing transfers.
/// </summary>
/// <param name="session"></param>
/// <param name="transferInfo"></param>
private void AddTransfer(HTTPSession session, HttpTransfer transferInfo)
{
this.m_LockHttpTransfers.AcquireWriterLock(-1);
SessionData sd = (SessionData) session.StateObject;
sd.Transfers.Enqueue(transferInfo);
sd.Requested++;
// obtain unique transfer id
UInt32 id = (uint) session.GetHashCode();
while (this.m_HttpTransfers.ContainsKey(id))
{
id++;
}
this.m_HttpTransfers.Add(id, transferInfo);
transferInfo.m_TransferId = id;
this.m_LockHttpTransfers.ReleaseWriterLock();
this.FireHttpTransfersChange();
}
public Task OnCompleted(HttpTransfer transfer) => this.TryUpdate(transfer);
public Task OnError(HttpTransfer transfer, Exception ex)
{
// TODO: file error with delegate?
return(this.TryUpdate(transfer));
}
public void OnCompleted(HttpTransfer transfer)
{
}
/// <summary>
/// Handles the code for when a client attempts to post a binary
/// to the server. The method attempts to find a resource object
/// that maps to the specified uri and will then ask upper application
/// logic for permission to save the binary. Application logic
/// can reject the request by throwing an exception.
/// <para>
/// As an aside, piplelining is really easy for POST messages
/// because the bodies of POST messages will contain the actual
/// binary that's getting transfered to the server. Standard pipelining
/// rules dictate that the next POST message must follow an already
/// complete HTTP message. Regardless of whether the request was
/// GET, POST, or HEAD - setting the WebSession's UserSTream property
/// should always work.
/// </para>
/// </summary>
/// <param name="msg"></param>
/// <param name="WebSession"></param>
private void HandlePostedFileToServer(HTTPMessage msg, HTTPSession WebSession)
{
// Format of DirectiveObj will be
// "/[res.m_ResourceID]/[res.m_Owner.ID]/"
//
DText DirectiveParser = new DText();
DirectiveParser.ATTRMARK = "/";
DirectiveParser[0] = msg.DirectiveObj;
string resourceID = DirectiveParser[2];
string objectID = DirectiveParser[3];
IDvResource res = this.GetResource(objectID, resourceID);
WebSession.UserStream = null;
if (res != null)
{
// only receive files that are allow overwriting
if (res.AllowImport)
{
if (this.OnRequestSaveBinary != null)
{
// If application has not requested notifications for
// when something post data, tnen automatically approve
// the POST.
}
else
{
// Allow the application to approve or reject the POST.
// If the application logic throws an exception,
// then the WebSession.UserStream field remains null.
// The message of the exception is used in the HTTP
// error response to the POST-sender.
this.OnRequestSaveBinary(this, res);
}
// Set the session to write to the following local file.
//
string path = res.ContentUri.Substring(MediaResource.AUTOMAPFILE.Length);
// attempt to figure out the intended file extension by
// examining the sender's post request for a content-type.
// if so, append the extension as appropriately.
string mime = msg.ContentType;
string ext = MimeTypes.MimeToExtension(mime);
if (path.EndsWith(ext) == false)
{
path += ext;
}
// attempt to figure ot the intended file's length by
// examining the sender's post request
long expectedLength = 0;
try
{
expectedLength = this.ExtractContentLength(msg);
}
catch
{
}
// Create a stream for the file incoming data,
// wire up session to dump the incoming data to the stream,
// create a transfer info block indicating information about
// the transfer, and formally add the transfer.
FileStream fs = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.None, 4*1024);
WebSession.UserStream = fs;
HttpTransfer transferInfo = new HttpTransfer(true, true, WebSession, res, WebSession.UserStream, expectedLength);
this.AddTransfer(WebSession, transferInfo);
}
}
}
async Task <HttpTransfer> Upload(HttpTransferStore request, CancellationToken ct)
{
var file = new FileInfo(request.LocalFile);
var status = HttpTransferState.Pending;
var bytesTransferred = 0L;
Exception? exception = null;
HttpTransfer lastTransfer = default;
// and not cancelled or error
while (!status.IsCompleted() && !ct.IsCancellationRequested)
{
try
{
var content = new MultipartFormDataContent();
if (!request.PostData.IsEmpty())
{
content.Add(new StringContent(request.PostData));
}
content.Add(
new ProgressStreamContent(
file.OpenRead(),
8192,
sent =>
{
status = HttpTransferState.InProgress;
bytesTransferred += sent;
lastTransfer = new HttpTransfer(
request.Id,
request.Uri,
request.LocalFile,
true,
request.UseMeteredConnection,
null,
file.Length,
bytesTransferred,
status
);
this.messageBus.Publish(lastTransfer);
}
),
"blob",
file.Name
);
var message = this.Build(request);
message.Content = content;
var response = await this.httpClient
.SendAsync(message, ct)
.ConfigureAwait(false);
response.EnsureSuccessStatusCode();
status = HttpTransferState.Completed;
}
catch (TimeoutException)
{
status = HttpTransferState.Retrying;
}
catch (IOException ex)
{
if (ex.InnerException is WebException)
{
status = HttpTransferState.Retrying;
}
else
{
exception = ex;
status = HttpTransferState.Error;
}
}
catch (WebException ex)
{
switch (ex.Status)
{
case WebExceptionStatus.ConnectFailure:
case WebExceptionStatus.Timeout:
status = HttpTransferState.Retrying;
break;
default:
status = HttpTransferState.Error;
exception = ex;
break;
}
}
catch (TaskCanceledException)
{
status = ct.IsCancellationRequested
? HttpTransferState.Canceled
: HttpTransferState.Retrying;
}
catch (Exception ex)
{
exception = ex;
status = HttpTransferState.Error;
}
lastTransfer = new HttpTransfer(
request.Id,
request.Uri,
request.LocalFile,
true,
request.UseMeteredConnection,
exception,
file.Length,
bytesTransferred,
status
);
this.messageBus.Publish(lastTransfer);
}
return(lastTransfer);
}
/// <summary>
/// Method actually removes an <see cref="HttpTransfer"/>
/// object from the mediaserver's list of active transfers.
/// The method is executed after the LifeTimeMonitor
/// notes that the prerequisite 30 seconds has passed since
/// the actual transfer was completed.
/// Method is called by <see cref="MediaServerDevice.Sink_OnExpired"/>.
/// </summary>
/// <param name="transferInfo"></param>
private void RemoveTransfer(HttpTransfer transferInfo)
{
UInt32 id = transferInfo.m_TransferId;
this.m_LockHttpTransfers.AcquireWriterLock(-1);
bool error = false;
if (this.m_HttpTransfers.ContainsKey(id))
{
HttpTransfer transferInfo2 = (HttpTransfer) this.m_HttpTransfers[id];
if (transferInfo2 == transferInfo)
{
this.m_HttpTransfers.Remove(id);
}
else
{
error = true;
}
}
else
{
error = true;
}
this.m_LockHttpTransfers.ReleaseWriterLock();
if (error)
{
throw new Error_TransferProblem(id, transferInfo);
}
this.FireHttpTransfersChange();
}
static void ToViewModel(HttpTransferViewModel viewModel, HttpTransfer transfer)
{
viewModel.PercentComplete = transfer.PercentComplete;
viewModel.PercentCompleteText = $"{transfer.PercentComplete * 100}%";
viewModel.Status = transfer.Status.ToString();
}
/// <summary>
/// Method executes when a control point invokes the ContentDirectory.ExportResource action.
/// This method effectively causes the MediaServer to send a local binary to
/// an URI that expects an HTTP-POST method of transfer. The method will report
/// error messages if the specified local URI does not map to a URI that is
/// automapped using <see cref="MediaResource.AUTOMAPFILE"/>.
/// </summary>
/// <param name="SourceURI"></param>
/// <param name="DestinationURI"></param>
/// <param name="TransferID"></param>
private void SinkCd_ExportResource(System.Uri SourceURI, System.Uri DestinationURI, out System.UInt32 TransferID)
{
TransferID = 0;
Uri dest = DestinationURI;
string resourceID, objectID;
// find media and resource IDs given a URI that should map to something
// served on this server
this.GetObjectResourceIDS(SourceURI, out objectID, out resourceID);
if ((objectID == "") || (resourceID == ""))
{
throw new Error_NoSuchResource(SourceURI.ToString());
}
IDvResource res = this.GetResource(objectID, resourceID);
if (res != null)
{
//TODO: Might actually want to throw an exception here if the IP address
//of the requested resource doesn't match an IP address of the server.
//This may be more trouble than its worth though,a s it means
//we have to figure out all of the IP addresses that apply to this
//object and do a match, etc. What happens if the IP address
//of the server changes spontaneously? Ignore the problem for now.
//
// create a socket that will connect to remote host
//
Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint remoteIPE = null;
if (dest.HostNameType == System.UriHostNameType.Dns)
{
remoteIPE = new IPEndPoint(Dns.GetHostByName(dest.Host).AddressList[0], dest.Port);
}
else
{
remoteIPE = new IPEndPoint(IPAddress.Parse(dest.Host), dest.Port);
}
if (remoteIPE != null)
{
// check if the file actually exists
string fileName = res.ContentUri.Substring(MediaResource.AUTOMAPFILE.Length);
if (Directory.Exists(fileName))
{
throw new Error_NoSuchResource("The binary could not be found on the system.");
}
FileNotMapped mapping = new FileNotMapped();
StringBuilder li = new StringBuilder();
li.AppendFormat("{0}:{1}", SourceURI.Host, SourceURI.Port);
mapping.LocalInterface = li.ToString();
mapping.RequestedResource = res;
mapping.RedirectedStream = null;
if (File.Exists(fileName))
{
// the file exists, so go ahead and send it
mapping.RedirectedStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);
}
else
{
try
{
if (this.OnFileNotMapped != null)
{
this.OnFileNotMapped(this, mapping);
}
}
catch (Exception ofnme)
{
mapping.RedirectedStream = null;
}
}
if (mapping.RedirectedStream == null)
{
throw new Error_NoSuchResource("The binary could not be found on the system.");
}
else
{
try
{
s.Connect(remoteIPE);
}
catch
{
throw new UPnPCustomException(800, "Could not connect to the remote address of " +remoteIPE.ToString()+":"+remoteIPE.Port.ToString());
}
// Create a session that will post the file
HTTPSession session = null;
SessionData sd;
this.SetupSessionForTransfer(session);
sd = (SessionData) session.StateObject;
sd.HttpVer1_1 = true;
HttpTransfer transferInfo = new HttpTransfer(false, true, session, res, mapping.RedirectedStream, mapping.RedirectedStream.Length);
this.AddTransfer(session, transferInfo);
session.PostStreamObject(mapping.RedirectedStream, dest.PathAndQuery, res.ProtocolInfo.MimeType);
TransferID = transferInfo.m_TransferId;
}
}
else
{
throw new UPnPCustomException(800, "Could not connect to the socket.");
}
}
else
{
throw new Error_NoSuchResource("");
}
this.m_Stats.ExportResource++;
this.FireStatsChange();
}
