public static async Task<BerkeleyDtoResult> GetResultAsync(JsonSerializer serializer, HttpContent content)
{
using (Stream stream = await content.ReadAsStreamAsync().ConfigureAwait(false))
using (var reader = new StreamReader(stream))
using (var jsonReader = new JsonTextReader(reader))
return serializer.Deserialize<BerkeleyDtoResult>(jsonReader);
}
public async Task <ActionResult> GetAttachment(int FileID)
{
UriBuilder uriBuilder = new UriBuilder();
uriBuilder.Scheme = "https";
uriBuilder.Host = "api.example.com";
var Path = "/files/download";
uriBuilder.Path = Path;
using (HttpClient client = new HttpClient())
{
client.BaseAddress = new Uri(uriBuilder.ToString());
client.DefaultRequestHeaders.Accept.Clear();
//client.DefaultRequestHeaders.Add("authorization", access_token); //if any
//client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));
HttpResponseMessage response = await client.GetAsync(uriBuilder.ToString());
if (response.IsSuccessStatusCode)
{
response.Headers[""];
System.Net.Http.HttpContent content = response.Content;
var contentStream = await content.ReadAsStreamAsync(); // get the actual content stream
return(File(contentStream, content_type, filename));
}
else
{
throw new FileNotFoundException();
}
}
}
public async Task Download()
{
var index = 0;
for (int i = 0; i < files.Count; i++)
{
if (files[i] == selectedfile)
{
index = i;
}
}
if (index != 0)
{
UploadText.Text = selectedfile + " has been downloaded to [DownloadBook] folder!";
string path = downloadpath + "\\" + selectedfile;
Console.Write("\n[{0} has been downloaded to {1}!]", files[index], path);
//download file
string display = baseUrl_ + "/" + index;
var resp2 = await client.GetAsync(baseUrl_ + "/" + index).ConfigureAwait(false);
System.Net.Http.HttpContent content = resp2.Content; // actually a System.Net.Http.StreamContent instance but you do not need to cast as the actual type does not matter in this case
using (var file = System.IO.File.Create(path))
{ // create a new file to write to
var contentStream = await content.ReadAsStreamAsync(); // get the actual content stream
await contentStream.CopyToAsync(file); // copy that stream to the file stream
await file.FlushAsync(); // flush back to disk before disposing
}
}
}
private static async Task GetAttachment(int FileID)
{
UriBuilder uriBuilder = new UriBuilder();
uriBuilder.Scheme = "https";
uriBuilder.Host = "www1.nseindia.com/content/historical/EQUITIES/2020/MAR/cm04MAR2020bhav.csv.zip";
//https://www1.nseindia.com/content/historical/EQUITIES/2020/MAR/cm04MAR2020bhav.csv.zip
var Path = "/files/download";
uriBuilder.Path = Path;
using (HttpClient client = new HttpClient())
{
client.BaseAddress = new Uri(uriBuilder.ToString());
client.DefaultRequestHeaders.Accept.Clear();
//client.DefaultRequestHeaders.Add("authorization", access_token); //if any
//client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));
HttpResponseMessage response = await client.GetAsync(uriBuilder.ToString());
if (response.IsSuccessStatusCode)
{
System.Net.Http.HttpContent content = response.Content;
var contentStream = await content.ReadAsStreamAsync(); // get the actual content stream
// return File(contentStream, content_type, filename);
}
else
{
throw new FileNotFoundException();
}
}
}
public static async Task GetAttachment(string url, string filename)
{
UriBuilder uriBuilder = new UriBuilder(url);
using (HttpClient client = new HttpClient())
{
client.BaseAddress = new Uri(uriBuilder.ToString());
client.DefaultRequestHeaders.Accept.Clear();
HttpResponseMessage response = await client.GetAsync(uriBuilder.ToString());
if (response.IsSuccessStatusCode)
{
System.Net.Http.HttpContent content = response.Content;
var contentStream = await content.ReadAsStreamAsync(); // get the actual content stream
using (var outputStream = File.OpenWrite(filename))
{
contentStream.CopyTo(outputStream);
contentStream.Flush();
}
}
else
{
throw new FileNotFoundException();
}
}
}
public async Task DownloadFile(string route, string filename)
{
if (File.Exists(filename))
{
File.Delete(filename);
}
var httpClient = await GetHttpClient();
HttpResponseMessage response = await httpClient.GetAsync(route);
if (response.IsSuccessStatusCode)
{
System.Net.Http.HttpContent content = response.Content;
var contentStream = await content.ReadAsStreamAsync();
using (var stream = new FileStream(filename, FileMode.Create))
{
await contentStream.CopyToAsync(stream);
}
}
else
{
throw new FileNotFoundException();
}
}
HttpContent IHttpContentEncryptor.Encrypt(HttpContent originContent)
{
if (originContent == null)
{
throw new ArgumentNullException("originContent");
}
var originData = originContent.ReadAsStreamAsync().Result;
if (originData.Length == 0)
{
return originContent;
}
this.algorithm.Key = this.keyProvider.Key;
this.algorithm.IV = this.keyProvider.IV;
using (var encryptor = algorithm.CreateEncryptor())
{
using (var encryptedData = new MemoryStream())
{
var cryptoStream = new CryptoStream(encryptedData, encryptor, CryptoStreamMode.Write);
originData.CopyTo(cryptoStream);
cryptoStream.FlushFinalBlock();
encryptedData.Position = 0;
var encodedString = Convert.ToBase64String(encryptedData.ToArray());
var encryptedContent = new StringContent(encodedString);
encryptedContent.Headers.ContentType = originContent.Headers.ContentType;
return encryptedContent;
}
}
}
private Location readJsonIntoAddress(HttpContent content)
{
DataContractJsonSerializer jsonSerializer = new DataContractJsonSerializer(typeof(Response));
Response bingResponse = jsonSerializer.ReadObject(content.ReadAsStreamAsync().Result) as Response;
Location bingLocation = bingResponse.ResourceSets[0].Resources[0] as Location;
return bingLocation;
}
public override async Task<object> ReadFromStreamAsync(Type type,
Stream readStream,
HttpContent content,
IFormatterLogger formatterLogger,
CancellationToken cancellationToken)
{
var uf = new UploadedFile(StrHelper.UnquoteToken(content.Headers.ContentDisposition.FileName),
await content.ReadAsStreamAsync());
return uf;
}
public string ReadResponse(HttpResponseMessage response)
{
string result = string.Empty;
System.Net.Http.HttpContent sm = response.Content;
Task <Stream> sr = sm.ReadAsStreamAsync();
Task <string> res = sm.ReadAsStringAsync();
result = res.Result;
return(result);
}
private static async Task<HttpContent> DecompressContent(HttpContent compressedContent, ICompressor compressor)
{
using (compressedContent)
{
MemoryStream decompressed = new MemoryStream();
await compressor.Decompress(await compressedContent.ReadAsStreamAsync(), decompressed);
var newContent = new StreamContent(decompressed);
// copy content type so we know how to load correct formatter
newContent.Headers.ContentType = compressedContent.Headers.ContentType;
return newContent;
}
}
/// <inheritdoc />
public async Task<object> ConvertFromHttpContentAsync(Type resultType, HttpContent httpContent, CancellationToken cancellationToken = default(CancellationToken))
{
if (!CanConvertFromHttpContent(resultType, httpContent))
{
throw new NotSupportedException("CanConvertFromHttpContent resulted in false, this is not supposed to be called.");
}
Log.Debug().WriteLine("Retrieving the content as XDocument, Content-Type: {0}", httpContent.Headers.ContentType);
using (var contentStream = await httpContent.ReadAsStreamAsync().ConfigureAwait(false))
{
return XDocument.Load(contentStream);
}
}
/// <summary>
/// Get all tracks from serverDb
/// </summary>
/// <returns></returns>
public static List <Track> GetTracks()
{
var responseTask = client.GetAsync("track");
responseTask.Wait();
var result = responseTask.Result;
IDictionary <string, dynamic> json = null;
if (result.IsSuccessStatusCode)
{
var readTask = result.Content.ReadAsAsync <IDictionary <string, dynamic> >();
readTask.Wait();
json = readTask.Result;
}
List <Track> tracks = JsonConvert.DeserializeObject <List <Track> >(json["objects"].ToString());
foreach (var track in tracks)
{
string[] splitAlbumPath = track.album.Split('/');
track.album = splitAlbumPath[splitAlbumPath.Length - 1];
// < Audio download >
var httpResponseMessage = dlClient.GetAsync("song_file/" + track.id + "/");
httpResponseMessage.Wait();
var resp = httpResponseMessage.Result;
if (resp.IsSuccessStatusCode)
{
System.Net.Http.HttpContent content = resp.Content;
string format = content.Headers.ContentDisposition.FileName.Split('.')[content.Headers.ContentDisposition.FileName.Split('.').Length - 1];
format = format.Replace("\"", "");
if (format == "wav" || format == "mp3")
{
Stream contentStream = content.ReadAsStreamAsync().Result; // get the actual content stream
string path = new Uri(Path.GetDirectoryName(Assembly.GetExecutingAssembly().CodeBase)).LocalPath + "/Data/Tracks/" + track.title + "." + format;
using (FileStream fileStream = File.Create(path))
{
contentStream.Seek(0, SeekOrigin.Begin);
contentStream.CopyTo(fileStream);
track.audio = path;
}
}
}
// </ Audio download >
}
return(tracks);
}
private static async Task<HttpContent> DecompressContentAsync(HttpContent compressedContent, ICompressor compressor)
{
using (compressedContent)
{
var decompressed = new MemoryStream();
await compressor.Decompress(await compressedContent.ReadAsStreamAsync(), decompressed).ConfigureAwait(true);
decompressed.Position = 0;
var newContent = new StreamContent(decompressed);
newContent.Headers.ContentType = compressedContent.Headers.ContentType;
return newContent;
}
}
public async Task <FileDTO> GetExampleFileAsync()
{
/*
* TODO - esse método poderia ser melhorado. Em vez de ler o arquivo do disco,
* seria mais interessante gerar um arquivo de exemplo com as configurações presentes
* no appsettings.json referentes à posição e tamanho dos campos. Dessa forma, se mudarmos
* o layout do arquivo, não temos que alterar o arquivo de "exemplo".
*/
FileDTO file = new FileDTO();
file.ContentType = "text/plain";
file.Extension = "txt";
file.Name = "EXAMPLE.txt";
file.Content = new MemoryStream();
if (this._fileServerSettings.Type == "file")
{
using (FileStream fs = new FileStream(this._fileServerSettings.Path, FileMode.Open, FileAccess.Read))
{
await fs.CopyToAsync(file.Content);
file.Content.Position = 0;
}
}
else
{
using (HttpClient client = new HttpClient())
{
HttpResponseMessage response = await client.GetAsync(this._fileServerSettings.Path);
if (response.IsSuccessStatusCode)
{
System.Net.Http.HttpContent content = response.Content;
var contentStream = await content.ReadAsStreamAsync();
await contentStream.CopyToAsync(file.Content);
file.Content.Position = 0;
}
else
{
throw new FileNotFoundException("Impossível obter arquivo do servidor");
}
}
}
return(file);
}
private static async Task<HttpContent> DecompressContentAsync(HttpContent compressedContent, ICompressor compressor)
{
using (compressedContent)
{
MemoryStream decompressed = new MemoryStream();
await compressor.Decompress(await compressedContent.ReadAsStreamAsync(), decompressed).ConfigureAwait(false);
// set position back to 0 so it can be read again
decompressed.Position = 0;
var newContent = new StreamContent(decompressed);
// copy content type so we know how to load correct formatter
newContent.Headers.ContentType = compressedContent.Headers.ContentType;
return newContent;
}
}
public async Task<object> DeserializeAsync(Type type, HttpContent content) {
HttpContentHeaders headers = content == null ? null : content.Headers;
// If content length is 0 then return default value for this type
if (headers != null) {
if (headers.ContentLength == 0)
return ReflectionHelper.GetDefaultValue(type);
var mediaType = headers.ContentType.MediaType;
Util.Check(_mediaTypes.Contains(mediaType), "JsonContentSerializer: cannot deserialize response body with content type {0}.", mediaType);
}
//Get stream
var stream = await content.ReadAsStreamAsync();
Encoding effectiveEncoding = SelectCharacterEncoding(headers);
using (JsonTextReader jsonTextReader = new JsonTextReader(new StreamReader(stream, effectiveEncoding))
{ CloseInput = false, MaxDepth = _maxDepth }) {
return _serializer.Deserialize(jsonTextReader, type);
}
}
public static Object Extract( HttpContent content, Type commandType )
{
var read = content.ReadAsAsync( commandType );
read.Wait();
//reset the internal stream position to allow the WebAPI pipeline to read it again.
content.ReadAsStreamAsync()
.ContinueWith( t =>
{
if( t.Result.CanSeek )
{
t.Result.Seek( 0, SeekOrigin.Begin );
}
} )
.Wait();
return read.Result;
}
private static async Task GetPRStats(List <stat> stats, ht.HttpClient client, string project)
{
var complete = false;
var url = $"https://api.github.com/repos/xBimTeam/{project}/pulls";
int iPage = 1;
while (!complete)
{
// Get the response.
var t = url + "?page=" + iPage + "&per_page=30&state=all";
Debug.WriteLine(t);
ht.HttpResponseMessage response = await client.GetAsync(t);
// Get the response content.
ht.HttpContent responseContent = response.Content;
// Get the stream of the content.
using (var reader = new StreamReader(await responseContent.ReadAsStreamAsync()))
{
// Write the output.
var content = await reader.ReadToEndAsync();
var items = JArray.Parse(content);
// JArray comments = (JArray)data["channel"]["item"][0]["category"];
foreach (var item in items)
{
var user = item["user"]["login"].ToString();
var created = item["created_at"].ToString();
DateTime createdDate = DateTime.Parse(created);
var s = new stat()
{
login = user,
date = createdDate,
project = project,
type = "PR"
};
stats.Add(s);
}
iPage++;
complete = (items.Count < 30);
}
}
}
/// <summary>
/// Reads all body parts within a MIME multipart message using the provided <see cref="MultipartStreamProvider"/> instance
/// to determine where the contents of each body part is written and <paramref name="bufferSize"/> as read buffer size.
/// </summary>
/// <typeparam name="T">The <see cref="MultipartStreamProvider"/> with which to process the data.</typeparam>
/// <param name="content">An existing <see cref="HttpContent"/> instance to use for the object's content.</param>
/// <param name="streamProvider">A stream provider providing output streams for where to write body parts as they are parsed.</param>
/// <param name="bufferSize">Size of the buffer used to read the contents.</param>
/// <param name="cancellationToken">The token to monitor for cancellation requests.</param>
/// <returns>A <see cref="Task{T}"/> representing the tasks of getting the result of reading the MIME content.</returns>
public static async Task <T> ReadAsMultipartAsync <T>(this HttpContent content, T streamProvider, int bufferSize,
CancellationToken cancellationToken) where T : MultipartStreamProvider
{
if (content == null)
{
throw Error.ArgumentNull("content");
}
if (streamProvider == null)
{
throw Error.ArgumentNull("streamProvider");
}
if (bufferSize < MinBufferSize)
{
throw Error.ArgumentMustBeGreaterThanOrEqualTo("bufferSize", bufferSize, MinBufferSize);
}
Stream stream;
try
{
stream = await content.ReadAsStreamAsync();
}
catch (Exception e)
{
throw new IOException(Properties.Resources.ReadAsMimeMultipartErrorReading, e);
}
using (var parser = new MimeMultipartBodyPartParser(content, streamProvider))
{
byte[] data = new byte[bufferSize];
MultipartAsyncContext context = new MultipartAsyncContext(stream, parser, data, streamProvider.Contents);
// Start async read/write loop
await MultipartReadAsync(context, cancellationToken);
// Let the stream provider post-process when everything is complete
await streamProvider.ExecutePostProcessingAsync(cancellationToken);
return(streamProvider);
}
}
public async Task<string> StoreImage(HttpContent content, string path, int advertId, string userId)
{
Stream stream = await content.ReadAsStreamAsync();
string fileName = null;
try
{
Image image = Image.FromStream(stream);
var extension = ImageFormatUtils.FileExtensionFromEncoder(image.RawFormat);
fileName = string.Format("{0}{1}{2}{3}{4}", advertId, userId, DateTime.Now.Ticks, random.Next() % 10000007, extension);
var fullPath = Path.Combine(path, fileName);
image.Save(fullPath);
}
catch
{
throw new InvalidDataException();
}
return fileName;
}
// There are many helper overloads for ReadAs*(). Provide one worker function to ensure the logic is shared.
//
// For loosely typed, T = Object, type = specific class.
// For strongly typed, T == type.GetType()
private static Task <T> ReadAsAsync <T>(HttpContent content, Type type, IEnumerable <MediaTypeFormatter> formatters, IFormatterLogger formatterLogger)
{
if (content == null)
{
throw new ArgumentNullException("content");
}
if (type == null)
{
throw new ArgumentNullException("type");
}
if (formatters == null)
{
throw new ArgumentNullException("formatters");
}
ObjectContent objectContent = content as ObjectContent;
if (objectContent != null && objectContent.Value != null && type.IsAssignableFrom(objectContent.Value.GetType()))
{
return(TaskHelpers.FromResult((T)objectContent.Value));
}
MediaTypeFormatter formatter = null;
MediaTypeHeaderValue mediaType = content.Headers.ContentType;
if (mediaType != null)
{
formatter = new MediaTypeFormatterCollection(formatters).FindReader(type, mediaType);
}
if (formatter == null)
{
string mediaTypeAsString = mediaType != null ? mediaType.MediaType : Properties.Resources.UndefinedMediaType;
throw new InvalidOperationException(
RS.Format(Properties.Resources.NoReadSerializerAvailable, type.Name, mediaTypeAsString));
}
return(content.ReadAsStreamAsync()
.Then(stream => formatter.ReadFromStreamAsync(type, stream, content.Headers, formatterLogger)
.Then(value => (T)value)));
}
private async ValueTask <Stream> CreateContentReadStreamAsyncCore(bool async, CancellationToken cancellationToken)
{
if (_contentConsumed)
{
throw new InvalidOperationException(SR.net_http_content_stream_already_read);
}
_contentConsumed = true;
Stream originalStream;
if (async)
{
originalStream = _originalContent.TryReadAsStream() ?? await _originalContent.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
}
else
{
originalStream = _originalContent.ReadAsStream();
}
return(GetDecompressedStream(originalStream));
}
private static async Task <T> ReadAsAsyncCore <T>(
HttpContent content,
Type type,
IFormatterLogger formatterLogger,
MediaTypeFormatter formatter,
CancellationToken cancellationToken
)
{
cancellationToken.ThrowIfCancellationRequested();
Stream stream = await content.ReadAsStreamAsync();
object result = await formatter.ReadFromStreamAsync(
type,
stream,
content,
formatterLogger,
cancellationToken
);
return((T)result);
}
public static Task <T> ReadAsMultipartAsync <T>(this HttpContent content, T streamProvider, int bufferSize) where T : MultipartStreamProvider
{
if (content == null)
{
throw Error.ArgumentNull("content");
}
if (streamProvider == null)
{
throw Error.ArgumentNull("streamProvider");
}
if (bufferSize < MinBufferSize)
{
throw Error.ArgumentMustBeGreaterThanOrEqualTo("bufferSize", bufferSize, MinBufferSize);
}
MimeMultipartBodyPartParser parser = null;
return(content.ReadAsStreamAsync().Then(stream =>
{
TaskCompletionSource <bool> taskCompletionSource = new TaskCompletionSource <bool>();
parser = new MimeMultipartBodyPartParser(content, streamProvider);
byte[] data = new byte[bufferSize];
MultipartAsyncContext context = new MultipartAsyncContext(content, stream, taskCompletionSource, parser, data, streamProvider.Contents);
// Start async read/write loop
MultipartReadAsync(context);
// Return task and complete when we have run the post processing step.
return taskCompletionSource.Task.Then(() => streamProvider.ExecutePostProcessingAsync().ToTask <T>(result: streamProvider));
}).Finally(() =>
{
if (parser != null)
{
parser.Dispose();
}
}, runSynchronously: true));
}
public async Task <string> DownloadDinosaursFile()
{
HttpClientHandler handler = new HttpClientHandler();
HttpClient client = new HttpClient(handler);
try
{
Encoding.RegisterProvider(System.Text.CodePagesEncodingProvider.Instance);
handler.UseDefaultCredentials = true;
handler.AllowAutoRedirect = true;
HttpResponseMessage response = await client.GetAsync(url);
response.EnsureSuccessStatusCode();
if (response.IsSuccessStatusCode)
{
System.Text.Encoding.RegisterProvider(System.Text.CodePagesEncodingProvider.Instance);
System.Net.Http.HttpContent content = response.Content;
var contentStream = await content.ReadAsStreamAsync(); // get the actual content stream
var excelContent = ParseExcel(contentStream);
return(JsonConvert.SerializeObject(excelContent));
}
}
catch (HttpRequestException e)
{
Console.WriteLine("\nException Caught!");
Console.WriteLine("Message :{0} ", e.Message);
}
finally
{
// Need to call dispose on the HttpClient and HttpClientHandler objects
// when done using them, so the app doesn't leak resources
handler.Dispose();
client.Dispose();
}
return(string.Empty);
}
HttpContent IHttpContentEncryptor.Encrypt(HttpContent originContent)
{
if (originContent == null)
{
throw new ArgumentNullException("originContent");
}
var originStream = originContent.ReadAsStreamAsync().Result;
if ( originStream.Length == 0)
{
return originContent;
}
byte[] originBytes = new byte[originStream.Length];
originStream.Read(originBytes, 0, originBytes.Length);
var encodedString = Convert.ToBase64String(originBytes);
var encodedContent = new StringContent(encodedString);
encodedContent.Headers.ContentType = originContent.Headers.ContentType;
return encodedContent;
}
private async Task <Stream> FinishGetStreamAsync(Task <HttpResponseMessage> getTask)
{
HttpResponseMessage httpResponseMessage = await getTask.ConfigureAwait(false);
httpResponseMessage.EnsureSuccessStatusCode();
HttpContent content = httpResponseMessage.Content;
Stream stream1;
if (content != null)
{
Stream stream2 = content.TryReadAsStream();
if (stream2 == null)
{
stream2 = await content.ReadAsStreamAsync().ConfigureAwait(false);
}
stream1 = stream2;
}
else
{
stream1 = Stream.Null;
}
return(stream1);
}
private async Task <string> GetStringAsyncCore(Task <HttpResponseMessage> getTask)
{
using (HttpResponseMessage responseMessage = await getTask.ConfigureAwait(false))
{
responseMessage.EnsureSuccessStatusCode();
HttpContent content = responseMessage.Content;
if (content != null)
{
HttpContentHeaders headers = content.Headers;
Stream stream = content.TryReadAsStream();
if (stream == null)
{
stream = await content.ReadAsStreamAsync().ConfigureAwait(false);
}
using (Stream responseStream = stream)
{
using (HttpContent.LimitArrayPoolWriteStream buffer = new HttpContent.LimitArrayPoolWriteStream(this._maxResponseContentBufferSize, (long)(int)headers.ContentLength.GetValueOrDefault()))
{
try
{
await responseStream.CopyToAsync((Stream)buffer).ConfigureAwait(false);
}
catch (Exception ex) when(HttpContent.StreamCopyExceptionNeedsWrapping(ex))
{
throw HttpContent.WrapStreamCopyException(ex);
}
if (buffer.Length > 0L)
{
return(HttpContent.ReadBufferAsString(buffer.GetBuffer(), headers));
}
}
}
headers = (HttpContentHeaders)null;
}
return(string.Empty);
}
}
private async Task <string> GetStringAsyncCore(Task <HttpResponseMessage> getTask)
{
// Wait for the response message.
using (HttpResponseMessage responseMessage = await getTask.ConfigureAwait(false))
{
// Make sure it completed successfully.
responseMessage.EnsureSuccessStatusCode();
// Get the response content.
HttpContent c = responseMessage.Content;
if (c != null)
{
#if NET46
return(await c.ReadAsStringAsync().ConfigureAwait(false));
#else
HttpContentHeaders headers = c.Headers;
// Since the underlying byte[] will never be exposed, we use an ArrayPool-backed
// stream to which we copy all of the data from the response.
using (Stream responseStream = c.TryReadAsStream() ?? await c.ReadAsStreamAsync().ConfigureAwait(false))
using (var buffer = new HttpContent.LimitArrayPoolWriteStream(_maxResponseContentBufferSize, (int)headers.ContentLength.GetValueOrDefault()))
{
await responseStream.CopyToAsync(buffer).ConfigureAwait(false);
if (buffer.Length > 0)
{
// Decode and return the data from the buffer.
return(HttpContent.ReadBufferAsString(buffer.GetBuffer(), headers));
}
}
#endif
}
// No content to return.
return(string.Empty);
}
}
public static async Task GetFileAsync(string url, string mimetype, string filename, DirectoryInfo sagskatalog)
{
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue(mimetype));
HttpResponseMessage response = await client.GetAsync(url);
if (response.IsSuccessStatusCode)
{
System.Net.Http.HttpContent content = response.Content;
var contentStream = await content.ReadAsStreamAsync(); // get the actual content stream
using (var fileStream = File.Create(filename))
{
contentStream.CopyTo(fileStream);
}
}
else
{
_log.Error("Kunne ikke hente fil: " + filename);
//Log this as an error
throw new FileNotFoundException(response.ReasonPhrase);
}
return;
}
private static async Task BufferRequestBodyAsync(IDictionary<string, object> environment, HttpContent content)
{
await content.LoadIntoBufferAsync();
// We need to replace the request body with a buffered stream so that other
// components can read the stream
environment[OwinConstants.RequestBodyKey] = await content.ReadAsStreamAsync();
}
public static async Task<GithubDocument> ParseContent(HttpContent content, LinkFactory linkFactory)
{
var stream = await content.ReadAsStreamAsync();
return new GithubDocument(stream, linkFactory);
}
/// <summary>
/// Reads all body parts within a MIME multipart message using the provided <see cref="MultipartStreamProvider"/> instance
/// to determine where the contents of each body part is written and <paramref name="bufferSize"/> as read buffer size.
/// </summary>
/// <typeparam name="T">The <see cref="MultipartStreamProvider"/> with which to process the data.</typeparam>
/// <param name="content">An existing <see cref="HttpContent"/> instance to use for the object's content.</param>
/// <param name="streamProvider">A stream provider providing output streams for where to write body parts as they are parsed.</param>
/// <param name="bufferSize">Size of the buffer used to read the contents.</param>
/// <returns>A <see cref="Task{T}"/> representing the tasks of getting the result of reading the MIME content.</returns>
#if NETFX_CORE
public static async Task <T> ReadAsMultipartAsync <T>(this HttpContent content, T streamProvider, int bufferSize) where T : MultipartStreamProvider
{
if (content == null)
{
throw Error.ArgumentNull("content");
}
if (streamProvider == null)
{
throw Error.ArgumentNull("streamProvider");
}
if (bufferSize < MinBufferSize)
{
throw Error.ArgumentMustBeGreaterThanOrEqualTo("bufferSize", bufferSize, MinBufferSize);
}
try
{
Stream stream = await content.ReadAsStreamAsync();
List <HttpContent> childContents = new List <HttpContent>();
using (var parser = new MimeMultipartBodyPartParser(content, streamProvider))
{
byte[] buffer = new byte[bufferSize];
bool finalPart = false;
while (!finalPart)
{
int readCount = await stream.ReadAsync(buffer, 0, buffer.Length);
// The parser returns one or more parsed parts, depending on how much data was returned
// from the network read. The last part may be incomplete (partial), so we only dispose
// of the parts once we know they're finished. Regardless of whether the part is complete
// or not, we send the bytes to the desired output stream. We loop back for more data
// until we've completely read the complete, final part.
foreach (MimeBodyPart part in parser.ParseBuffer(buffer, readCount))
{
try
{
Stream output = part.GetOutputStream(content);
foreach (ArraySegment <byte> segment in part.Segments)
{
await output.WriteAsync(segment.Array, segment.Offset, segment.Count);
}
if (part.IsComplete)
{
if (part.HttpContent != null)
{
childContents.Add(part.HttpContent);
}
finalPart = part.IsFinal;
part.Dispose();
break;
}
}
catch (Exception)
{
// Clean up the part if we got an error in the middle of parsing, because we normally
// won't dispose a part until it's complete.
part.Dispose();
throw;
}
}
}
// Let the stream provider post-process when everything is complete
await streamProvider.ExecutePostProcessingAsync();
return(streamProvider);
}
}
catch (Exception e)
{
throw new IOException(Properties.Resources.ReadAsMimeMultipartErrorReading, e);
}
}
public static Task <Stream> ReadAsStreamAsync(this HttpContent httpContent, CancellationToken cancellation = default)
{
cancellation.ThrowIfCancellationRequested();
return(httpContent.ReadAsStreamAsync());
}
private static async Task <HttpResponseMessage> ReadAsHttpResponseMessageAsyncCore(
this HttpContent content,
int bufferSize,
int maxHeaderSize,
CancellationToken cancellationToken
)
{
cancellationToken.ThrowIfCancellationRequested();
Stream stream = await content.ReadAsStreamAsync();
HttpUnsortedResponse httpResponse = new HttpUnsortedResponse();
HttpResponseHeaderParser parser = new HttpResponseHeaderParser(
httpResponse,
HttpResponseHeaderParser.DefaultMaxStatusLineSize,
maxHeaderSize
);
ParserState parseStatus;
byte[] buffer = new byte[bufferSize];
int bytesRead = 0;
int headerConsumed = 0;
while (true)
{
try
{
bytesRead = await stream.ReadAsync(buffer, 0, buffer.Length, cancellationToken);
}
catch (Exception e)
{
throw new IOException(Properties.Resources.HttpMessageErrorReading, e);
}
try
{
parseStatus = parser.ParseBuffer(buffer, bytesRead, ref headerConsumed);
}
catch (Exception)
{
parseStatus = ParserState.Invalid;
}
if (parseStatus == ParserState.Done)
{
// Create and return parsed HttpResponseMessage
return(CreateHttpResponseMessage(
httpResponse,
stream,
bytesRead - headerConsumed
));
}
else if (parseStatus != ParserState.NeedMoreData)
{
throw Error.InvalidOperation(
Properties.Resources.HttpMessageParserError,
headerConsumed,
buffer
);
}
else if (bytesRead == 0)
{
throw new IOException(
Properties.Resources.ReadAsHttpMessageUnexpectedTermination
);
}
}
}
/// <summary>
/// Creates an array copy of the <paramref name="content"/> without affecting the <see cref="Stream.Position"/> of the original object.
/// </summary>
private static async Task<byte[]> CloneArrayAsync(HttpContent content)
{
var result = await content.ReadAsByteArrayAsync();
var stream = await content.ReadAsStreamAsync();
if (stream.CanSeek) stream.Position = 0;
return result;
}
public static Task <HttpRequestMessage> ReadAsHttpRequestMessageAsync(this HttpContent content, string uriScheme, int bufferSize)
{
if (content == null)
{
throw new ArgumentNullException("content");
}
if (uriScheme == null)
{
throw new ArgumentNullException("uriScheme");
}
if (!Uri.CheckSchemeName(uriScheme))
{
throw new ArgumentException(RS.Format(Properties.Resources.HttpMessageParserInvalidUriScheme, uriScheme, typeof(Uri).Name), "uriScheme");
}
if (bufferSize < MinBufferSize)
{
throw new ArgumentOutOfRangeException("bufferSize", bufferSize, RS.Format(Properties.Resources.ArgumentMustBeGreaterThanOrEqualTo, MinBufferSize));
}
HttpMessageContent.ValidateHttpMessageContent(content, true, true);
return(content.ReadAsStreamAsync().Then(stream =>
{
HttpUnsortedRequest httpRequest = new HttpUnsortedRequest();
HttpRequestHeaderParser parser = new HttpRequestHeaderParser(httpRequest);
ParserState parseStatus;
byte[] buffer = new byte[bufferSize];
int bytesRead = 0;
int headerConsumed = 0;
while (true)
{
try
{
bytesRead = stream.Read(buffer, 0, buffer.Length);
}
catch (Exception e)
{
throw new IOException(Properties.Resources.HttpMessageErrorReading, e);
}
try
{
parseStatus = parser.ParseBuffer(buffer, bytesRead, ref headerConsumed);
}
catch (Exception)
{
parseStatus = ParserState.Invalid;
}
if (parseStatus == ParserState.Done)
{
return CreateHttpRequestMessage(uriScheme, httpRequest, stream, bytesRead - headerConsumed);
}
else if (parseStatus != ParserState.NeedMoreData)
{
throw new IOException(RS.Format(Properties.Resources.HttpMessageParserError, headerConsumed, buffer));
}
}
}));
}
public async Task <IActionResult> DownloadDocument(int?id)
{
if (id == null)
{
return(StatusCode(StatusCodes.Status400BadRequest));
}
var document = context_.Documents.Find(id);
if (document != null)
{
string filename = document.StoragePath;
try
{ //path: ReadIt/ReadIt/xxx.pdf
HttpClient client = new HttpClient();
//find old path
HttpResponseMessage resp = await client.GetAsync(baseUrl_).ConfigureAwait(false);
var files = new List <string>();
var index = 0;
if (resp.IsSuccessStatusCode)
{
var json = await resp.Content.ReadAsStringAsync().ConfigureAwait(false);
JArray jArr = (JArray)JsonConvert.DeserializeObject(json);
foreach (var item in jArr)
{
files.Add(item.ToString());
}
}
for (int i = 0; i < files.Count; i++)
{
if (files[i] == document.StoragePath)
{
index = i;
}
}
if (index != 0)
{
//download file
string display = baseUrl_ + "/" + index;
var resp2 = await client.GetAsync(baseUrl_ + "/" + index).ConfigureAwait(false);
System.Net.Http.HttpContent content = resp2.Content; // actually a System.Net.Http.StreamContent instance but you do not need to cast as the actual type does not matter in this case
string uploadpath = Directory.GetCurrentDirectory();
uploadpath = uploadpath + "\\DownloadBook\\" + document.StoragePath;
using (var file = System.IO.File.Create(uploadpath))
{ // create a new file to write to
var contentStream = await content.ReadAsStreamAsync(); // get the actual content stream
await contentStream.CopyToAsync(file); // copy that stream to the file stream
await file.FlushAsync(); // flush back to disk before disposing
}
}
}
catch
{
//fail uploading files!
//can verify: IsSuccessStatusCode
}
}
return(RedirectToAction("Index"));
}
public static async Task<Stream> awaitReadFileContents(HttpContent content)
{
return await content.ReadAsStreamAsync();
}
private object JsonParser(HttpContent content)
{
var stream = content.ReadAsStreamAsync().Result;
var streamReader = new StreamReader(stream);
var textReader = new JsonTextReader(streamReader);
try
{
return JObject.Load(textReader);
}
catch
{
return JArray.Load(textReader);
}
finally
{
streamReader.Dispose();
}
}
private object HtmlParser(HttpContent content)
{
var stream = content.ReadAsStreamAsync().Result;
return CQ.Create(stream);
}
private object XmlParser(HttpContent content)
{
var stream = content.ReadAsStreamAsync().Result;
return XElement.Load((Stream)stream);
}
public static Task <Stream> ReadAsStreamAsync(this HttpContent content, CancellationToken cancellationToken)
{
return(content.ReadAsStreamAsync());
}
/// <summary>
/// Processes the image given in the <see cref="HttpContent"/> into a <see cref="UserImage"/> object.
/// Resizes the image according to the settings given upon instantiation.
/// </summary>
/// <param name="user">The user who initiated the procedure</param>
/// <returns>A processed image file</returns>
public async Task<Image> ProcessUserImage(User user, HttpContent fileContent, string description)
{
using(fileContent)
{
// Get filename
var fullname = Helpers.GetFilename(fileContent.Headers.ContentDisposition.FileName);
var filename = fullname.Item1.Replace("\"", string.Empty);
var extension = fullname.Item2.Replace("\"", string.Empty);
var mime = fileContent.Headers.ContentType.MediaType;
using (var fileStream = await fileContent.ReadAsStreamAsync())
{
// Retrieve image
var originalImage = d.Image.FromStream(fileStream);
var format = originalImage.RawFormat;
// Convert image to byte array and set file path
var originalData = ConvertToByte(originalImage, format);
var origData = new Lazy<byte[]>(() => originalData);
var origPath = GetPath(user.Username, originalData, extension);
// Calculate medium size
var mediumWidth = (int)(originalImage.Width * mediumScaleFactor);
var mediumHeight = (int)(originalImage.Height * mediumScaleFactor);
// Resize image and set file path
var previewImage = ResizeImage(originalImage, mediumWidth, mediumHeight);
var previewData = ConvertToByte(previewImage, format);
var prevData = new Lazy<byte[]>(() => previewData);
var prevPath = GetPath(user.Username, previewData, extension);
// Calculate height factor & thumbnail height
var thumbnailHeightFactor = ((double)(originalImage.Height) / (double)(originalImage.Width));
var thumbnailHeight = (int)(thumbnailWidth * thumbnailHeightFactor);
// Resize thumbnail and set file path
var thumbnailImage = ResizeImage(originalImage, thumbnailWidth, thumbnailHeight);
var thumbnailData = ConvertToByte(thumbnailImage, format);
var thumbData = new Lazy<byte[]>(() => thumbnailData);
var thumbPath = GetPath(user.Username, thumbnailData, extension);
// FileInfos
var original = new FileInfo { Data = origData, Path = origPath };
var preview = new FileInfo { Data = prevData, Path = prevPath };
var thumbnail = new FileInfo { Data = thumbData, Path = thumbPath };
// Return the processed image file. Note it has not been saved to the database yet!
return new Image
{
Filename = filename,
Extension = extension,
MimeType = mime,
Description = description,
Original = original,
Preview = preview,
Thumbnail = thumbnail,
Owner = user,
Uploaded = DateTime.Now,
};
}
}
}
/// <summary> /// Read and deserialize the HttpContent streaming content /// </summary> /// <typeparam name="T"></typeparam> /// <param name="content"></param> /// <returns></returns> public static async Task <T> ReadAsAsync <T>(this HttpContent content) => await JsonSerializer.DeserializeAsync <T>(await content.ReadAsStreamAsync().ConfigureAwait(false)).ConfigureAwait(false);
private async Task<Response> DeserializeResponse(Request request, HttpContent content, Type bodyType)
{
using (Stream contentStream = await content.ReadAsStreamAsync())
{
using (var reader = new StreamReader(contentStream, Encoding.UTF8, false, DefaultBufferSize, true))
{
return DeserializeResponseXml(request, reader, bodyType);
}
}
}
public static Task <HttpResponseMessage> ReadAsHttpResponseMessageAsync(this HttpContent content, int bufferSize, int maxHeaderSize)
{
if (content == null)
{
throw Error.ArgumentNull("content");
}
if (bufferSize < MinBufferSize)
{
throw Error.ArgumentMustBeGreaterThanOrEqualTo("bufferSize", bufferSize, MinBufferSize);
}
if (maxHeaderSize < InternetMessageFormatHeaderParser.MinHeaderSize)
{
throw Error.ArgumentMustBeGreaterThanOrEqualTo("maxHeaderSize", maxHeaderSize, InternetMessageFormatHeaderParser.MinHeaderSize);
}
HttpMessageContent.ValidateHttpMessageContent(content, false, true);
return(content.ReadAsStreamAsync().Then(stream =>
{
HttpUnsortedResponse httpResponse = new HttpUnsortedResponse();
HttpResponseHeaderParser parser = new HttpResponseHeaderParser(httpResponse, HttpResponseHeaderParser.DefaultMaxStatusLineSize, maxHeaderSize);
ParserState parseStatus;
byte[] buffer = new byte[bufferSize];
int bytesRead = 0;
int headerConsumed = 0;
while (true)
{
try
{
bytesRead = stream.Read(buffer, 0, buffer.Length);
}
catch (Exception e)
{
throw new IOException(Properties.Resources.HttpMessageErrorReading, e);
}
try
{
parseStatus = parser.ParseBuffer(buffer, bytesRead, ref headerConsumed);
}
catch (Exception)
{
parseStatus = ParserState.Invalid;
}
if (parseStatus == ParserState.Done)
{
// Create and return parsed HttpResponseMessage
return CreateHttpResponseMessage(httpResponse, stream, bytesRead - headerConsumed);
}
else if (parseStatus != ParserState.NeedMoreData)
{
throw Error.InvalidOperation(Properties.Resources.HttpMessageParserError, headerConsumed, buffer);
}
}
}));
}
/// <summary>
/// Serialize the HTTP content and return a stream that represents the content as a synchronous operation.
/// </summary>
public static Stream ReadAsStream(this HttpContent content)
{
return(Task.Run(() => content.ReadAsStreamAsync()).Result);
}
public XElementContent(HttpContent content)
{
_Element = XElement.Load(content.ReadAsStreamAsync().Result);
}
DbEmdFile CreateDbFile(HttpContent ctnt, Stream stream)
{
DbEmdFile dbFile = new DbEmdFile();
dbFile.ApplicationUserID = User.Identity.GetUserId();
// You would get hold of the inner memory stream here
stream = ctnt.ReadAsStreamAsync().Result;
dbFile.Content = stream.StreamToByteArray();
dbFile.ContentType = ctnt.Headers.ContentType.MediaType;
dbFile.FileName = ctnt.Headers.ContentDisposition.FileName;
dbFile.FileSize = (long)ctnt.Headers.ContentLength;
return dbFile;
}
private static async Task BufferRequestBodyAsync(IOwinRequest owinRequest, HttpContent content)
{
await content.LoadIntoBufferAsync();
// We need to replace the request body with a buffered stream so that other
// components can read the stream
owinRequest.Body = await content.ReadAsStreamAsync();
}
internal static async Task<rt.IHttpContent> GetContentFromNet(HttpContent content)
{
if (content == null)
return null;
var stream = await content.ReadAsStreamAsync().ConfigureAwait(false);
var c = new rt.HttpStreamContent(stream.AsInputStream());
CopyHeaders(content.Headers, c.Headers);
return c;
}
private static async Task <RTIHttpContent> CreateRequestContentAsync(HttpRequestMessage request, HttpRequestHeaderCollection rtHeaderCollection)
{
HttpContent content = request.Content;
RTIHttpContent rtContent;
ArraySegment <byte> buffer;
// If we are buffered already, it is more efficient to send the data directly using the buffer with the
// WinRT HttpBufferContent class than using HttpStreamContent. This also avoids issues caused by
// a design limitation in the System.Runtime.WindowsRuntime System.IO.NetFxToWinRtStreamAdapter.
if (content.TryGetBuffer(out buffer))
{
rtContent = new RTHttpBufferContent(buffer.Array.AsBuffer(), (uint)buffer.Offset, (uint)buffer.Count);
}
else
{
Stream contentStream = await content.ReadAsStreamAsync().ConfigureAwait(false);
if (contentStream is RTIInputStream)
{
rtContent = new RTHttpStreamContent((RTIInputStream)contentStream);
}
else if (contentStream is MemoryStream)
{
var memStream = contentStream as MemoryStream;
if (memStream.TryGetBuffer(out buffer))
{
rtContent = new RTHttpBufferContent(buffer.Array.AsBuffer(), (uint)buffer.Offset, (uint)buffer.Count);
}
else
{
byte[] byteArray = memStream.ToArray();
rtContent = new RTHttpBufferContent(byteArray.AsBuffer(), 0, (uint)byteArray.Length);
}
}
else
{
rtContent = new RTHttpStreamContent(contentStream.AsInputStream());
}
}
// RTHttpBufferContent constructor automatically adds a Content-Length header. RTHttpStreamContent does not.
// Clear any 'Content-Length' header added by the RTHttp*Content objects. We need to clear that now
// and decide later whether we need 'Content-Length' or 'Transfer-Encoding: chunked' headers based on the
// .NET HttpRequestMessage and Content header collections.
rtContent.Headers.ContentLength = null;
// Deal with conflict between 'Content-Length' vs. 'Transfer-Encoding: chunked' semantics.
// Desktop System.Net allows both headers to be specified but ends up stripping out
// 'Content-Length' and using chunked semantics. The WinRT APIs throw an exception so
// we need to manually strip out the conflicting header to maintain app compatibility.
if (request.Headers.TransferEncodingChunked.HasValue && request.Headers.TransferEncodingChunked.Value)
{
content.Headers.ContentLength = null;
}
else
{
// Trigger delayed header generation via TryComputeLength. This code is needed due to an outstanding
// bug in HttpContentHeaders.ContentLength. See GitHub Issue #5523.
content.Headers.ContentLength = content.Headers.ContentLength;
}
foreach (KeyValuePair <string, IEnumerable <string> > headerPair in content.Headers)
{
foreach (string value in headerPair.Value)
{
if (!rtContent.Headers.TryAppendWithoutValidation(headerPair.Key, value))
{
// rtContent headers are restricted to a white-list of allowed headers, while System.Net.HttpClient's content headers
// will allow custom headers. If something is not successfully added to the content headers, try adding them to the standard headers.
bool success = rtHeaderCollection.TryAppendWithoutValidation(headerPair.Key, value);
Debug.Assert(success);
}
}
}
return(rtContent);
}
private async Task <byte[]> GetByteArrayAsyncCore(Task <HttpResponseMessage> getTask)
{
using (HttpResponseMessage responseMessage = await getTask.ConfigureAwait(false))
{
responseMessage.EnsureSuccessStatusCode();
HttpContent content = responseMessage.Content;
if (content != null)
{
HttpContentHeaders headers = content.Headers;
Stream stream = content.TryReadAsStream();
if (stream == null)
{
stream = await content.ReadAsStreamAsync().ConfigureAwait(false);
}
using (Stream responseStream = stream)
{
long? contentLength = headers.ContentLength;
Stream buffer;
if (contentLength.HasValue)
{
buffer = (Stream) new HttpContent.LimitMemoryStream(this._maxResponseContentBufferSize, (int)contentLength.GetValueOrDefault());
try
{
await responseStream.CopyToAsync(buffer).ConfigureAwait(false);
}
catch (Exception ex) when(HttpContent.StreamCopyExceptionNeedsWrapping(ex))
{
throw HttpContent.WrapStreamCopyException(ex);
}
if (buffer.Length > 0L)
{
return(((HttpContent.LimitMemoryStream)buffer).GetSizedBuffer());
}
}
else
{
buffer = (Stream) new HttpContent.LimitArrayPoolWriteStream(this._maxResponseContentBufferSize);
try
{
try
{
await responseStream.CopyToAsync(buffer).ConfigureAwait(false);
}
catch (Exception ex) when(HttpContent.StreamCopyExceptionNeedsWrapping(ex))
{
throw HttpContent.WrapStreamCopyException(ex);
}
if (buffer.Length > 0L)
{
return(((HttpContent.LimitArrayPoolWriteStream)buffer).ToArray());
}
}
finally
{
buffer.Dispose();
}
}
buffer = (Stream)null;
}
headers = (HttpContentHeaders)null;
}
return(Array.Empty <byte>());
}
}
