public virtual async Task <long> ContentLengthRequestAsync(Methods method, Version methodApiVersion, SubsonicParameters parameters = null, CancellationToken?cancelToken = null)
{
var requestUri = SubsonicServer.BuildRequestUri(method, methodApiVersion, parameters);
var clientHandler = GetClientHandler();
var client = GetClient(clientHandler);
long length = -1;
cancelToken?.ThrowIfCancellationRequested();
try
{
using (var message = new HttpRequestMessage(System.Net.Http.HttpMethod.Head, requestUri))
using (var response = cancelToken.HasValue ? await client.SendAsync(message, cancelToken.Value) : await client.SendAsync(message))
{
if (!response.IsSuccessStatusCode)
{
throw new SubsonicApiException(string.Format(CultureInfo.CurrentCulture, "Unexpected response status code: {0}", Enum.GetName(typeof(ItemChoiceType), response.StatusCode)));
}
if (response.Content.Headers.ContentLength != null)
{
length = response.Content.Headers.ContentLength.GetValueOrDefault();
}
}
}
catch (Exception ex)
{
throw new SubsonicApiException(ex.Message, ex);
}
cancelToken?.ThrowIfCancellationRequested();
return(length);
}
public virtual async Task <IImageFormat <T> > ImageRequestAsync(Methods method, Version methodApiVersion, SubsonicParameters parameters = null, CancellationToken?cancelToken = null)
{
var requestUri = SubsonicServer.BuildRequestUri(method, methodApiVersion, parameters);
var clientHandler = GetClientHandler();
var client = GetClient(clientHandler);
cancelToken?.ThrowIfCancellationRequested();
var content = new MemoryStream();
try
{
using (var response = cancelToken.HasValue ? await client.GetAsync(requestUri, cancelToken.Value) : await client.GetAsync(requestUri))
{
if (response.Content.Headers.ContentType != null && response.Content.Headers.ContentType.MediaType.Contains(HttpContentTypes.TextXml))
{
var stringResponse = await response.Content.ReadAsStringAsync();
if (stringResponse == null)
{
throw new SubsonicErrorException("HTTP response contains no content");
}
var result = await DeserializeResponseAsync(stringResponse);
if (result.ItemElementName == ItemChoiceType.Error)
{
throw new SubsonicErrorException("Error occurred during request.", result.Item as Error);
}
throw new SubsonicApiException(string.Format(CultureInfo.CurrentCulture, "Unexpected response type: {0}", Enum.GetName(typeof(ItemChoiceType), result.ItemElementName)));
}
await response.Content.CopyToAsync(content);
}
}
catch (Exception ex)
{
throw new SubsonicApiException(ex.Message, ex);
}
cancelToken?.ThrowIfCancellationRequested();
content.Position = 0;
var image = ImageFormatFactory.Create();
await image.SetImageFromStreamAsync(content);
cancelToken?.ThrowIfCancellationRequested();
return(image);
}
public virtual async Task RequestWithoutResponseAsync(Methods method, Version methodApiVersion, SubsonicParameters parameters = null, CancellationToken?cancelToken = null)
{
var requestUri = SubsonicServer.BuildRequestUri(method, methodApiVersion, parameters);
var clientHandler = GetClientHandler();
var client = GetClient(clientHandler);
cancelToken?.ThrowIfCancellationRequested();
try
{
using (var message = new HttpRequestMessage(System.Net.Http.HttpMethod.Head, requestUri))
using (var ignored = cancelToken.HasValue ? await client.SendAsync(message, cancelToken.Value) : await client.SendAsync(message)) { }
}
catch (Exception ex)
{
throw new SubsonicApiException(ex.Message, ex);
}
cancelToken?.ThrowIfCancellationRequested();
}
public virtual async Task <Response> RequestAsync(Methods method, Version methodApiVersion, SubsonicParameters parameters = null, CancellationToken?cancelToken = null)
{
var requestUri = SubsonicServer.BuildRequestUri(method, methodApiVersion, parameters);
var clientHandler = GetClientHandler();
var client = GetClient(clientHandler);
cancelToken?.ThrowIfCancellationRequested();
Response result;
try
{
using (var response = cancelToken.HasValue ? await client.PostAsync(requestUri, null, cancelToken.Value) : await client.PostAsync(requestUri, null))
{
var stringResponse = await response.Content.ReadAsStringAsync();
if (stringResponse == null)
{
throw new SubsonicErrorException("HTTP response contains no content");
}
if (response.Content.Headers.ContentType.MediaType.Contains(HttpContentTypes.TextXml))
{
result = await DeserializeResponseAsync(stringResponse);
}
else
{
throw new SubsonicApiException(string.Format(CultureInfo.CurrentCulture, "HTTP response does not contain XML, content type is: {0}", response.Content.Headers.ContentType.MediaType));
}
}
}
catch (Exception ex)
{
throw new SubsonicApiException(ex.Message, ex);
}
cancelToken?.ThrowIfCancellationRequested();
return(result);
}