public ByteRangeStream(Stream innerStream, RangeItemHeaderValue range)
: base(innerStream)
{
if (range == null)
{
throw new ArgumentNullException("range");
}
if (!innerStream.CanSeek)
{
throw new ArgumentException(RS.Format(Resources.ByteRangeStreamNotSeekable, typeof(ByteRangeStream).Name), "innerStream");
}
if (innerStream.Length < 1)
{
throw new ArgumentOutOfRangeException("innerStream", innerStream.Length,
RS.Format(Resources.ByteRangeStreamEmpty, typeof(ByteRangeStream).Name));
}
if (range.From.HasValue && range.From.Value > innerStream.Length)
{
throw new ArgumentOutOfRangeException("range", range.From,
RS.Format(Resources.ByteRangeStreamInvalidFrom, innerStream.Length));
}
// Ranges are inclusive so 0-9 means the first 10 bytes
long maxLength = innerStream.Length - 1;
long upperbounds;
if (range.To.HasValue)
{
if (range.From.HasValue)
{
// e.g bytes=0-499 (the first 500 bytes offsets 0-499)
upperbounds = Math.Min(range.To.Value, maxLength);
_lowerbounds = range.From.Value;
}
else
{
// e.g bytes=-500 (the final 500 bytes)
upperbounds = maxLength;
_lowerbounds = Math.Max(innerStream.Length - range.To.Value, 0);
}
}
else
{
if (range.From.HasValue)
{
// e.g bytes=500- (from byte offset 500 and up)
upperbounds = maxLength;
_lowerbounds = range.From.Value;
}
else
{
// e.g. bytes=- (invalid so will never get here)
upperbounds = maxLength;
_lowerbounds = 0;
}
}
_totalCount = upperbounds - _lowerbounds + 1;
ContentRange = new ContentRangeHeaderValue(_lowerbounds, upperbounds, innerStream.Length);
}
private void Initialize(ContentRangeHeaderValue contentRange)
{
if (contentRange == null)
{
throw Error.ArgumentNull("contentRange");
}
this.ContentRange = contentRange;
}
private void Initialize(ContentRangeHeaderValue contentRange)
{
if (contentRange == null)
{
throw new ArgumentNullException("contentRange");
}
ContentRange = contentRange;
}
private ContentRangeHeaderValue(ContentRangeHeaderValue source)
{
Contract.Requires(source != null);
this.from = source.from;
this.to = source.to;
this.length = source.length;
this.unit = source.unit;
}
private void CheckValidParsedValue(string input, int startIndex, ContentRangeHeaderValue expectedResult,
int expectedIndex)
{
HttpHeaderParser parser = GenericHeaderParser.ContentRangeParser;
object result = null;
Assert.True(parser.TryParseValue(input, null, ref startIndex, out result),
string.Format("TryParse returned false. Input: '{0}'", input));
Assert.Equal(expectedIndex, startIndex);
Assert.Equal(expectedResult, result);
}
public void Ctor_FromToAndLengthOverloadValidValues_ValuesCorrectlySet()
{
ContentRangeHeaderValue range = new ContentRangeHeaderValue(0, 1, 2);
Assert.True(range.HasRange);
Assert.True(range.HasLength);
Assert.Equal("bytes", range.Unit);
Assert.Equal(0, range.From);
Assert.Equal(1, range.To);
Assert.Equal(2, range.Length);
}
public void Ctor_LengthOnlyOverloadValidValues_ValuesCorrectlySet()
{
ContentRangeHeaderValue range = new ContentRangeHeaderValue(5);
Assert.False(range.HasRange);
Assert.True(range.HasLength);
Assert.Equal("bytes", range.Unit);
Assert.Null(range.From);
Assert.Null(range.To);
Assert.Equal(5, range.Length);
}
public void Unit_GetAndSetValidAndInvalidValues_MatchExpectation()
{
ContentRangeHeaderValue range = new ContentRangeHeaderValue(0);
range.Unit = "myunit";
Assert.Equal("myunit", range.Unit); // "Unit (custom value)"
Assert.Throws<ArgumentException>(() => { range.Unit = null; }); // "<null>"
Assert.Throws<ArgumentException>(() => { range.Unit = ""; }); // "empty string"
Assert.Throws<FormatException>(() => { range.Unit = " x"; }); // "leading space"
Assert.Throws<FormatException>(() => { range.Unit = "x "; }); // "trailing space"
Assert.Throws<FormatException>(() => { range.Unit = "x y"; }); // "invalid token"
}
public void Equals()
{
var value = new ContentRangeHeaderValue (8);
Assert.AreEqual (value, new ContentRangeHeaderValue (8), "#1");
Assert.AreNotEqual (value, new ContentRangeHeaderValue (8, 30), "#2");
value = new ContentRangeHeaderValue (5, 30, 100);
Assert.AreEqual (value, new ContentRangeHeaderValue (5, 30, 100), "#3");
Assert.AreNotEqual (value, new ContentRangeHeaderValue (5, 30, 101), "#4");
Assert.AreNotEqual (value, new ContentRangeHeaderValue (5, 30), "#5");
Assert.AreNotEqual (value, new ContentRangeHeaderValue (5, 30, 100) {
Unit = "g"
}, "#6");
}
public void Ctor_SetsContentRange()
{
// Arrange
ContentRangeHeaderValue expectedContentRange = new ContentRangeHeaderValue(5, 9, 20);
Mock<Stream> mockInnerStream = new Mock<Stream>();
mockInnerStream.Setup(s => s.CanSeek).Returns(true);
mockInnerStream.Setup(s => s.Length).Returns(20);
RangeItemHeaderValue range = new RangeItemHeaderValue(5, 9);
// Act
ByteRangeStream rangeStream = new ByteRangeStream(mockInnerStream.Object, range);
// Assert
Assert.Equal(expectedContentRange, rangeStream.ContentRange);
}
private ContentRangeHeaderValue(ContentRangeHeaderValue source)
{
Contract.Requires(source != null);
_from = source._from;
_to = source._to;
_length = source._length;
_unit = source._unit;
}
private ContentRangeHeaderValue(ContentRangeHeaderValue source)
{
Debug.Assert(source != null);
_from = source._from;
_to = source._to;
_length = source._length;
_unit = source._unit;
}
public static bool TryParse(string input, out ContentRangeHeaderValue parsedValue)
{
parsedValue = null;
var lexer = new Lexer(input);
var t = lexer.Scan();
if (t != Token.Type.Token)
{
return(false);
}
var value = new ContentRangeHeaderValue();
value.unit = lexer.GetStringValue(t);
t = lexer.Scan();
if (t != Token.Type.Token)
{
return(false);
}
int nvalue;
if (!lexer.IsStarStringValue(t))
{
if (!lexer.TryGetNumericValue(t, out nvalue))
{
var s = lexer.GetStringValue(t);
if (s.Length < 3)
{
return(false);
}
var sep = s.Split('-');
if (sep.Length != 2)
{
return(false);
}
if (!int.TryParse(sep[0], NumberStyles.None, CultureInfo.InvariantCulture, out nvalue))
{
return(false);
}
value.From = nvalue;
if (!int.TryParse(sep[1], NumberStyles.None, CultureInfo.InvariantCulture, out nvalue))
{
return(false);
}
value.To = nvalue;
}
else
{
value.From = nvalue;
t = lexer.Scan();
if (t != Token.Type.SeparatorDash)
{
return(false);
}
t = lexer.Scan();
if (!lexer.TryGetNumericValue(t, out nvalue))
{
return(false);
}
value.To = nvalue;
}
}
t = lexer.Scan();
if (t != Token.Type.SeparatorSlash)
{
return(false);
}
t = lexer.Scan();
if (!lexer.IsStarStringValue(t))
{
if (!lexer.TryGetNumericValue(t, out nvalue))
{
return(false);
}
value.Length = nvalue;
}
t = lexer.Scan();
if (t != Token.Type.End)
{
return(false);
}
parsedValue = value;
return(true);
}
HttpResponseMessage StreamFile(BlobId formatBlobId, FileNameWithExtension fileName = null)
{
var descriptor = _blobStore.GetDescriptor(formatBlobId);
if (descriptor == null)
{
return Request.CreateErrorResponse(
HttpStatusCode.NotFound,
string.Format("File {0} not found", formatBlobId)
);
}
RangeHeaderValue rangeHeader = Request.Headers.Range;
var response = Request.CreateResponse(HttpStatusCode.OK);
response.Headers.AcceptRanges.Add("bytes");
// HEAD?
bool isHead = false;
if (Request.Method == HttpMethod.Head)
{
isHead = true;
rangeHeader = null;
}
// full stream
if (rangeHeader == null || !rangeHeader.Ranges.Any())
{
if (isHead)
{
response.Content = new ByteArrayContent(new byte[0]);
response.Content.Headers.ContentLength = descriptor.Length;
}
else
{
response.Content = new StreamContent(descriptor.OpenRead());
}
response.Content.Headers.ContentType = new MediaTypeHeaderValue(descriptor.ContentType);
if (fileName != null)
{
response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment")
{
FileName = fileName
};
}
return response;
}
// range stream
long start = 0, end = 0;
long totalLength = descriptor.Length;
// 1. If the unit is not 'bytes'.
// 2. If there are multiple ranges in header value.
// 3. If start or end position is greater than file length.
if (rangeHeader.Unit != "bytes" || rangeHeader.Ranges.Count > 1 ||
!TryReadRangeItem(rangeHeader.Ranges.First(), totalLength, out start, out end))
{
response.StatusCode = HttpStatusCode.RequestedRangeNotSatisfiable;
response.Content = new StreamContent(Stream.Null); // No content for this status.
response.Content.Headers.ContentRange = new ContentRangeHeaderValue(totalLength);
response.Content.Headers.ContentType = new MediaTypeHeaderValue(descriptor.ContentType);
return response;
}
var contentRange = new ContentRangeHeaderValue(start, end, totalLength);
// We are now ready to produce partial content.
response.StatusCode = HttpStatusCode.PartialContent;
response.Content = new PushStreamContent((outputStream, httpContent, transpContext)
=>
{
using (outputStream) // Copy the file to output stream in indicated range.
using (Stream inputStream = descriptor.OpenRead())
CreatePartialContent(inputStream, outputStream, start, end);
}, descriptor.ContentType);
response.Content.Headers.ContentType = new MediaTypeHeaderValue(descriptor.ContentType);
response.Content.Headers.ContentLength = end - start + 1;
response.Content.Headers.ContentRange = contentRange;
return response;
}
public void CreateErrorResponseRangeNotSatisfiable_SetsCorrectStatusCodeAndContentRangeHeader()
{
// Arrange
HttpRequestMessage request = new HttpRequestMessage();
ContentRangeHeaderValue expectedContentRange = new ContentRangeHeaderValue(length: 128);
InvalidByteRangeException invalidByteRangeException = new InvalidByteRangeException(expectedContentRange);
// Act
HttpResponseMessage response = request.CreateErrorResponse(invalidByteRangeException);
// Assert
Assert.Equal(HttpStatusCode.RequestedRangeNotSatisfiable, response.StatusCode);
Assert.Same(expectedContentRange, response.Content.Headers.ContentRange);
}
public InvalidByteRangeException(ContentRangeHeaderValue contentRange, SerializationInfo info, StreamingContext context)
: base(info, context)
{
this.Initialize(contentRange);
}
public static bool TryParse(string input, out ContentRangeHeaderValue parsedValue)
{
}
public void CreateErrorResponseRangeNotSatisfiable_SetsCorrectStatusCodeAndContentRangeHeader()
{
// Arrange
var context = new DefaultHttpContext();
context.RequestServices = CreateServices(new DefaultContentNegotiator());
var request = CreateRequest(context);
var expectedContentRange = new ContentRangeHeaderValue(length: 128);
var invalidByteRangeException = new InvalidByteRangeException(expectedContentRange);
// Act
var response = request.CreateErrorResponse(invalidByteRangeException);
// Assert
Assert.Equal(HttpStatusCode.RequestedRangeNotSatisfiable, response.StatusCode);
Assert.Same(expectedContentRange, response.Content.Headers.ContentRange);
}
public void ToString_UseDifferentRanges_AllSerializedCorrectly()
{
ContentRangeHeaderValue range = new ContentRangeHeaderValue(1, 2, 3);
range.Unit = "myunit";
Assert.Equal("myunit 1-2/3", range.ToString()); // "Range with all fields set"
range = new ContentRangeHeaderValue(123456789012345678, 123456789012345679);
Assert.Equal("bytes 123456789012345678-123456789012345679/*", range.ToString()); // "Only range, no length"
range = new ContentRangeHeaderValue(150);
Assert.Equal("bytes */150", range.ToString()); // "Only length, no range"
}
public void ContentRange_ReadAndWriteProperty_ValueMatchesPriorSetValue()
{
Assert.Null(_headers.ContentRange);
ContentRangeHeaderValue value = new ContentRangeHeaderValue(1, 2, 3);
_headers.ContentRange = value;
Assert.Equal(value, _headers.ContentRange);
_headers.ContentRange = null;
Assert.Null(_headers.ContentRange);
}
public ByteRangeStream(Stream innerStream, RangeItemHeaderValue range)
: base(innerStream)
{
// Ranges are inclusive so 0-9 means the first 10 bytes
long maxLength = innerStream.Length - 1;
long upperbounds;
if (range.To.HasValue)
{
if (range.From.HasValue)
{
// e.g bytes=0-499 (the first 500 bytes offsets 0-499)
upperbounds = Math.Min(range.To.Value, maxLength);
_lowerbounds = range.From.Value;
}
else
{
// e.g bytes=-500 (the final 500 bytes)
upperbounds = maxLength;
_lowerbounds = Math.Max(innerStream.Length - range.To.Value, 0);
}
}
else
{
if (range.From.HasValue)
{
// e.g bytes=500- (from byte offset 500 and up)
upperbounds = maxLength;
_lowerbounds = range.From.Value;
}
else
{
// e.g. bytes=- (invalid so will never get here)
upperbounds = maxLength;
_lowerbounds = 0;
}
}
_totalCount = upperbounds - _lowerbounds + 1;
ContentRange = new ContentRangeHeaderValue(_lowerbounds, upperbounds, innerStream.Length);
}
public static bool TryParse(string input, out ContentRangeHeaderValue parsedValue)
{
int index = 0;
object output;
parsedValue = null;
if (GenericHeaderParser.ContentRangeParser.TryParseValue(input, null, ref index, out output))
{
parsedValue = (ContentRangeHeaderValue)output;
return true;
}
return false;
}
public void Properties()
{
var value = new ContentRangeHeaderValue (4);
Assert.IsNull (value.From, "#1");
Assert.IsTrue (value.HasLength, "#2");
Assert.IsFalse (value.HasRange, "#3");
Assert.AreEqual (4, value.Length, "#4");
Assert.IsNull (value.To, "#5");
Assert.AreEqual ("bytes", value.Unit, "#6");
value = new ContentRangeHeaderValue (1, 10, 20);
value.Unit = "mu";
Assert.AreEqual (1, value.From, "#11");
Assert.IsTrue (value.HasLength, "#12");
Assert.IsTrue (value.HasRange, "#13");
Assert.AreEqual (20, value.Length, "#14");
Assert.AreEqual (10, value.To, "#15");
Assert.AreEqual ("mu", value.Unit, "#16");
}
/// <summary>
/// 依傳入的標頭回傳一個ResponseMessage
/// 正常來說直接回應給瀏覽器就可以了
/// this will return a ResponseMessage object
/// and response to web browser general.
/// </summary>
/// <param name="rangeHeader">ApiController's property: Request.Headers.Range</param>
/// <param name="fileName">video file name, it was getting from request's query string general</param>
/// <returns>HttpResponseMessage</returns>
public HttpResponseMessage CreateHttpResponseMessage(RangeHeaderValue rangeHeader, string fileName)
{
HttpResponseMessage response = new HttpResponseMessage();
// This can prevent some unnecessary accesses.
// These kind of file names won't be existing at all.
if (string.IsNullOrWhiteSpace(fileName) || AnyInvalidFileNameChars(fileName))
throw new HttpResponseException(HttpStatusCode.NotFound);
FileInfo fileInfo = new FileInfo(Path.Combine(InitialDirectory, fileName));
if (!fileInfo.Exists)
throw new HttpResponseException(HttpStatusCode.NotFound);
long totalLength = fileInfo.Length;
response.Headers.AcceptRanges.Add("bytes");
// The request will be treated as normal request if there is no Range header.
if (rangeHeader == null || !rangeHeader.Ranges.Any())
{
response.StatusCode = HttpStatusCode.OK;
response.Content = new PushStreamContent((outputStream, httpContent, transpContext)
=>
{
using (outputStream) // Copy the file to output stream straightforward.
using (Stream inputStream = fileInfo.OpenRead())
{
try
{
inputStream.CopyTo(outputStream, ReadStreamBufferSize);
}
catch (Exception error)
{
Console.WriteLine(error);
}
}
}, GetMimeNameFromExt(fileInfo.Extension));
response.Content.Headers.ContentLength = totalLength;
return response;
}
long start = 0, end = 0;
// 1. If the unit is not 'bytes'.
// 2. If there are multiple ranges in header value.
// 3. If start or end position is greater than file length.
if (rangeHeader.Unit != "bytes" || rangeHeader.Ranges.Count > 1 ||
!TryReadRangeItem(rangeHeader.Ranges.First(), totalLength, out start, out end))
{
response.StatusCode = HttpStatusCode.RequestedRangeNotSatisfiable;
response.Content = new StreamContent(Stream.Null); // No content for this status.
response.Content.Headers.ContentRange = new ContentRangeHeaderValue(totalLength);
response.Content.Headers.ContentType = GetMimeNameFromExt(fileInfo.Extension);
return response;
}
var contentRange = new ContentRangeHeaderValue(start, end, totalLength);
// We are now ready to produce partial content.
response.StatusCode = HttpStatusCode.PartialContent;
response.Content = new PushStreamContent((outputStream, httpContent, transpContext)
=>
{
using (outputStream) // Copy the file to output stream in indicated range.
using (Stream inputStream = fileInfo.OpenRead())
CreatePartialContent(inputStream, outputStream, start, end);
}, GetMimeNameFromExt(fileInfo.Extension));
response.Content.Headers.ContentLength = end - start + 1;
response.Content.Headers.ContentRange = contentRange;
return response;
}
private static bool TryCreateContentRange(string input, string unit, int fromStartIndex, int fromLength,
int toStartIndex, int toLength, int lengthStartIndex, int lengthLength, out object parsedValue)
{
parsedValue = null;
long from = 0;
if ((fromLength > 0) && !HeaderUtilities.TryParseInt64(input.Substring(fromStartIndex, fromLength), out from))
{
return false;
}
long to = 0;
if ((toLength > 0) && !HeaderUtilities.TryParseInt64(input.Substring(toStartIndex, toLength), out to))
{
return false;
}
// 'from' must not be greater than 'to'
if ((fromLength > 0) && (toLength > 0) && (from > to))
{
return false;
}
long length = 0;
if ((lengthLength > 0) && !HeaderUtilities.TryParseInt64(input.Substring(lengthStartIndex, lengthLength),
out length))
{
return false;
}
// 'from' and 'to' must be less than 'length'
if ((toLength > 0) && (lengthLength > 0) && (to >= length))
{
return false;
}
ContentRangeHeaderValue result = new ContentRangeHeaderValue();
result._unit = unit;
if (fromLength > 0)
{
result._from = from;
result._to = to;
}
if (lengthLength > 0)
{
result._length = length;
}
parsedValue = result;
return true;
}
/// <summary>
/// <see cref="HttpContent"/> implementation which provides a byte range view over a stream used to generate HTTP
/// 206 (Partial Content) byte range responses. If none of the requested ranges overlap with the current extend
/// of the selected resource represented by the <paramref name="content"/> parameter then an
/// <see cref="InvalidByteRangeException"/> is thrown indicating the valid Content-Range of the content.
/// </summary>
/// <param name="content">The stream over which to generate a byte range view.</param>
/// <param name="range">The range or ranges, typically obtained from the Range HTTP request header field.</param>
/// <param name="mediaType">The media type of the content stream.</param>
/// <param name="bufferSize">The buffer size used when copying the content stream.</param>
public ByteRangeStreamContent(Stream content, RangeHeaderValue range, MediaTypeHeaderValue mediaType, int bufferSize)
{
if (content == null)
{
throw new ArgumentNullException("content");
}
if (!content.CanSeek)
{
throw new ArgumentException("content", RS.Format(Resources.ByteRangeStreamNotSeekable, typeof(ByteRangeStreamContent).Name));
}
if (range == null)
{
throw new ArgumentNullException("range");
}
if (mediaType == null)
{
throw new ArgumentNullException("mediaType");
}
if (bufferSize < MinBufferSize)
{
throw new ArgumentOutOfRangeException("bufferSize", bufferSize, RS.Format(Resources.ArgumentMustBeGreaterThanOrEqualTo, MinBufferSize));
}
if (!range.Unit.Equals(SupportedRangeUnit, StringComparison.OrdinalIgnoreCase))
{
throw new ArgumentException(RS.Format(Resources.ByteRangeStreamContentNotBytesRange, range.Unit, SupportedRangeUnit), "range");
}
try
{
// If we have more than one range then we use a multipart/byteranges content type as wrapper.
// Otherwise we use a non-multipart response.
if (range.Ranges.Count > 1)
{
// Create Multipart content and copy headers to this content
MultipartContent rangeContent = new MultipartContent(ByteRangesContentSubtype);
_byteRangeContent = rangeContent;
foreach (RangeItemHeaderValue rangeValue in range.Ranges)
{
try
{
ByteRangeStream rangeStream = new ByteRangeStream(content, rangeValue);
HttpContent rangeBodyPart = new StreamContent(rangeStream, bufferSize);
rangeBodyPart.Headers.ContentType = mediaType;
rangeBodyPart.Headers.ContentRange = rangeStream.ContentRange;
rangeContent.Add(rangeBodyPart);
}
catch (ArgumentOutOfRangeException)
{
// We ignore range errors until we check that we have at least one valid range
}
}
// If no overlapping ranges were found then stop
if (!rangeContent.Any())
{
ContentRangeHeaderValue actualContentRange = new ContentRangeHeaderValue(content.Length);
string msg = RS.Format(Resources.ByteRangeStreamNoneOverlap, range.ToString());
throw new InvalidByteRangeException(actualContentRange, msg);
}
}
else if (range.Ranges.Count == 1)
{
try
{
ByteRangeStream rangeStream = new ByteRangeStream(content, range.Ranges.First());
_byteRangeContent = new StreamContent(rangeStream, bufferSize);
_byteRangeContent.Headers.ContentType = mediaType;
_byteRangeContent.Headers.ContentRange = rangeStream.ContentRange;
}
catch (ArgumentOutOfRangeException)
{
ContentRangeHeaderValue actualContentRange = new ContentRangeHeaderValue(content.Length);
string msg = RS.Format(Resources.ByteRangeStreamNoOverlap, range.ToString());
throw new InvalidByteRangeException(actualContentRange, msg);
}
}
else
{
throw new ArgumentException(Resources.ByteRangeStreamContentNoRanges, "range");
}
// Copy headers from byte range content so that we get the right content type etc.
foreach (KeyValuePair<string, IEnumerable<string>> header in _byteRangeContent.Headers)
{
Headers.TryAddWithoutValidation(header.Key, header.Value);
}
_content = content;
_start = content.Position;
}
catch
{
if (_byteRangeContent != null)
{
_byteRangeContent.Dispose();
}
throw;
}
}
/// <summary>
/// <see cref="HttpContent"/> implementation which provides a byte range view over a stream used to generate HTTP
/// 206 (Partial Content) byte range responses. If none of the requested ranges overlap with the current extend
/// of the selected resource represented by the <paramref name="content"/> parameter then an
/// <see cref="InvalidByteRangeException"/> is thrown indicating the valid Content-Range of the content.
/// </summary>
/// <param name="content">The stream over which to generate a byte range view.</param>
/// <param name="range">The range or ranges, typically obtained from the Range HTTP request header field.</param>
/// <param name="mediaType">The media type of the content stream.</param>
/// <param name="bufferSize">The buffer size used when copying the content stream.</param>
public ByteRangeStreamContent(Stream content, RangeHeaderValue range, MediaTypeHeaderValue mediaType, int bufferSize)
{
try
{
// If we have more than one range then we use a multipart/byteranges content type as wrapper.
// Otherwise we use a non-multipart response.
if (range.Ranges.Count > 1)
{
// Create Multipart content and copy headers to this content
MultipartContent rangeContent = new MultipartContent(ByteRangesContentSubtype);
_byteRangeContent = rangeContent;
foreach (RangeItemHeaderValue rangeValue in range.Ranges)
{
try
{
ByteRangeStream rangeStream = new ByteRangeStream(content, rangeValue);
HttpContent rangeBodyPart = new StreamContent(rangeStream, bufferSize);
rangeBodyPart.Headers.ContentType = mediaType;
rangeBodyPart.Headers.ContentRange = rangeStream.ContentRange;
rangeContent.Add(rangeBodyPart);
}
catch (ArgumentOutOfRangeException)
{
// We ignore range errors until we check that we have at least one valid range
}
}
// If no overlapping ranges were found then stop
if (!rangeContent.Any())
{
ContentRangeHeaderValue actualContentRange = new ContentRangeHeaderValue(content.Length);
string msg = "ByteRangeStreamNoneOverlap";
throw new InvalidByteRangeException(actualContentRange, msg);
}
}
else if (range.Ranges.Count == 1)
{
try
{
ByteRangeStream rangeStream = new ByteRangeStream(content, range.Ranges.First());
_byteRangeContent = new StreamContent(rangeStream, bufferSize);
_byteRangeContent.Headers.ContentType = mediaType;
_byteRangeContent.Headers.ContentRange = rangeStream.ContentRange;
}
catch (ArgumentOutOfRangeException)
{
ContentRangeHeaderValue actualContentRange = new ContentRangeHeaderValue(content.Length);
string msg = "ByteRangeStreamNoOverlap";
throw new InvalidByteRangeException(actualContentRange, msg);
}
}
else
{
throw new ArgumentException("range");
}
// Copy headers from byte range content so that we get the right content type etc.
_byteRangeContent.Headers.CopyTo(Headers);
_content = content;
_start = content.Position;
}
catch
{
if (_byteRangeContent != null)
{
_byteRangeContent.Dispose();
}
throw;
}
}
public void Ctor_SetsContentRange()
{
ContentRangeHeaderValue contentRange = new ContentRangeHeaderValue(0, 20, 100);
InvalidByteRangeException invalidByteRangeException = new InvalidByteRangeException(contentRange);
Assert.Same(contentRange, invalidByteRangeException.ContentRange);
}
public void ContentRange_UseAddMethod_AddedValueCanBeRetrievedUsingProperty()
{
_headers.TryAddWithoutValidation("Content-Range", "custom 1-2/*");
ContentRangeHeaderValue value = new ContentRangeHeaderValue(1, 2);
value.Unit = "custom";
Assert.Equal(value, _headers.ContentRange);
}
public InvalidByteRangeException(ContentRangeHeaderValue contentRange)
{
this.Initialize(contentRange);
}
public static bool TryParse (string input, out ContentRangeHeaderValue parsedValue)
{
parsedValue = null;
var lexer = new Lexer (input);
var t = lexer.Scan ();
if (t != Token.Type.Token)
return false;
var value = new ContentRangeHeaderValue ();
value.unit = lexer.GetStringValue (t);
t = lexer.Scan ();
if (t != Token.Type.Token)
return false;
int nvalue;
if (!lexer.IsStarStringValue (t)) {
if (!lexer.TryGetNumericValue (t, out nvalue)) {
var s = lexer.GetStringValue (t);
if (s.Length < 3)
return false;
var sep = s.Split ('-');
if (sep.Length != 2)
return false;
if (!int.TryParse (sep[0], NumberStyles.None, CultureInfo.InvariantCulture, out nvalue))
return false;
value.From = nvalue;
if (!int.TryParse (sep[1], NumberStyles.None, CultureInfo.InvariantCulture, out nvalue))
return false;
value.To = nvalue;
} else {
value.From = nvalue;
t = lexer.Scan (recognizeDash: true);
if (t != Token.Type.SeparatorDash)
return false;
t = lexer.Scan ();
if (!lexer.TryGetNumericValue (t, out nvalue))
return false;
value.To = nvalue;
}
}
t = lexer.Scan ();
if (t != Token.Type.SeparatorSlash)
return false;
t = lexer.Scan ();
if (!lexer.IsStarStringValue (t)) {
long lvalue;
if (!lexer.TryGetNumericValue (t, out lvalue))
return false;
value.Length = lvalue;
}
t = lexer.Scan ();
if (t != Token.Type.End)
return false;
parsedValue = value;
return true;
}
public InvalidByteRangeException(ContentRangeHeaderValue contentRange, string message, Exception innerException)
: base(message, innerException)
{
this.Initialize(contentRange);
}
