static void CopyPart()
{
try
{
ByteRange range = new ByteRange(10, 20);
CopyPartRequest request = new CopyPartRequest()
{
SourceBucketName = bucketName,
SourceObjectKey = objectName,
SourceVersionId = versionId,
ObjectKey = destobjectName,
PartNumber = 1,
UploadId = uploadId,
ByteRange = range
};
CopyPartResponse response = client.CopyPart(request);
Console.WriteLine("Copy part response: {0}", response.StatusCode);
Console.WriteLine("ETag: {0}", response.ETag);
etag = response.ETag;
}
catch (ObsException ex)
{
Console.WriteLine("Exception errorcode: {0}, when copy part.", ex.ErrorCode);
Console.WriteLine("Exception errormessage: {0}", ex.ErrorMessage);
}
}
public static List <ByteRange> RangeStringToArray(string rangeString)
{
var byteRanges = new List <ByteRange>();
var rangeValues = rangeString.Remove(0, Bytes.Length).Split(',');
foreach (var item in rangeValues)
{
var part = item.Split('-');
var byteRange = new ByteRange();
if (part.Length == 2)
{
if (part[1] == string.Empty)
{
byteRange.End = 0;
}
else
{
byteRange.End = (ulong)Convert.ToInt32(part[1]);
}
}
byteRange.Start = (ulong)Convert.ToInt32(part[0]);
byteRanges.Add(byteRange);
}
return(byteRanges);
}
public Dummy(IStructuralNode?parent, string name, ByteRange byteRange, Func <IList <IStructuralNode> > childFactory)
: base(parent)
{
Name = name;
ByteRange = byteRange;
_childFactory = childFactory;
}
/// <summary>
/// 输出文件
/// </summary>
/// <param name="response">回复对象</param>
public void ExecuteResult(HttpResponse response)
{
if (string.IsNullOrEmpty(this.ContentType))
{
this.ContentType = "application/ocelet-stream";
}
response.Charset = null;
response.ContentType = this.ContentType;
response.ContentDisposition = this.ContentDisposition;
using (var stream = new FileStream(this.FileName, FileMode.Open, FileAccess.Read))
{
const int size = 8 * 1024;
var state = response.WriteHeader((int)stream.Length);
while (state == true)
{
var bytes = new byte[size];
var length = stream.Read(bytes, 0, size);
if (length == 0)
{
break;
}
var content = new ByteRange(bytes, 0, length);
state = response.WriteContent(content);
}
}
}
/// <summary>
/// 输出文件
/// </summary>
/// <param name="response">回复对象</param>
public void ExecuteResult(HttpResponse response)
{
if (string.IsNullOrEmpty(this.ContentType))
{
this.ContentType = "application/ocelet-stream";
}
response.Charset = null;
response.ContentType = this.ContentType;
response.ContentDisposition = this.ContentDisposition;
using (var stream = new FileStream(this.FileName, FileMode.Open, FileAccess.Read))
{
const int size = 8 * 1024;
var state = response.WriteHeader((int)stream.Length);
while (state == true)
{
var bytes = new byte[size];
var length = stream.Read(bytes, 0, size);
if (length == 0)
{
break;
}
var content = new ByteRange(bytes, 0, length);
state = response.WriteContent(content);
}
}
}
/// <summary>
/// Extension method that performs a transformation on the <see cref="Byte"/> subject using
/// linear mapping to re-map from the provided initial range <paramref name="startRange"/>
/// to the target range <paramref name="endRange"/>.
/// </summary>
/// <param name="this">
/// The subject <see cref="Byte"/> in which to perform the linear map range re-mapping upon.
/// </param>
/// <param name="startRange">
/// An instance of the type <see cref="ByteRange"/>, describing a range of a pair of numeric
/// <see cref="Byte"/> values in which the linear re-mapping uses as the inital range.
/// </param>
/// <param name="endRange">
/// An instance of the type <see cref="ByteRange"/>, describing a range of a pair of numeric
/// <see cref="Byte"/> values in which the linear re-mapping uses as the target range.
/// </param>
/// <exception cref="ArgumentNullException">
/// Thrown when either the <paramref name="startRange"/> or the <paramref name="endRange"/>
/// parameters are equal to <see langword="null"/>.
/// </exception>
/// <exception cref="ArgumentOutOfRangeException">
/// Thrown when either the <paramref name="@this"/> subject parameter is not within the bounds
/// of the provided <paramref name="startRange"/>. This is determined with a call to the
/// <see cref="IsNotWithin"/> method, with an implicit <see cref="EndpointExclusivity"/> value
/// of <see cref="EndpointExclusivity.Inclusive"/> by default, unless it is specified explicitly
/// set this property to <see cref="EndpointExclusivity.Exclusive"/>.
/// </exception>
/// <returns>
/// A <see cref="Byte"/> value that has been linearly mapped on the <paramref name="startRange"/>
/// parameter, and re-mapped to the <paramref name="endRange"/> parameter.
/// </returns>
public static Byte LinearMap(
this Byte @this,
[NotNull] ByteRange startRange,
[NotNull] ByteRange endRange)
{
startRange.IsNotNull(nameof(startRange));
endRange.IsNotNull(nameof(endRange));
if (@this.IsNotWithin(startRange))
{
throw new ArgumentOutOfRangeException(
nameof(@this),
@this,
$"The {nameof(@this).SQuote()} parameter value is outside of the acceptable range. The " +
$"value must be within the {nameof(startRange).SQuote()} parameter. The current value is " +
$"{@this.ToString().SQuote()}, and the {nameof(startRange).SQuote()} parameter range is " +
$"{startRange}.");
}
var linearMapped
= (@this - startRange.Minimum) *
(endRange.Maximum - endRange.Minimum) /
(startRange.Maximum - startRange.Minimum) +
endRange.Minimum;
return(Convert
.ToByte(
linearMapped));
}
/// <summary>
/// 接收到策略请求
/// </summary>
/// <param name="session">会话对象</param>
/// <param name="buffer">数据</param>
protected override void OnReceive(SessionBase session, ReceiveBuffer buffer)
{
var xml = new StringBuilder();
xml.AppendLine("<?xml version=\"1.0\" encoding=\"utf-8\" ?>");
xml.AppendLine("<access-policy>");
xml.AppendLine("<cross-domain-access>");
xml.AppendLine("<policy>");
xml.AppendLine("<allow-from>");
xml.AppendLine("<domain uri=\"*\"/>");
xml.AppendLine("</allow-from>");
xml.AppendLine("<grant-to>");
xml.AppendLine("<socket-resource port=\"4502-4534\" protocol=\"tcp\"/>");
xml.AppendLine("</grant-to>");
xml.AppendLine("</policy>");
xml.AppendLine("</cross-domain-access>");
xml.AppendLine("</access-policy>");
var bytes = Encoding.UTF8.GetBytes(xml.ToString());
var byteRange = new ByteRange(bytes);
try
{
session.Send(byteRange);
}
finally
{
session.Close();
}
}
public TableStreamNode(PEStructuralNodeProvider provider, IStructuralNode parent, string name, long offset, long length)
: base(parent)
{
_provider = provider;
Name = name;
ByteRange = new ByteRange(offset, length);
}
public void TestOverwrite()
{
var bytes = Helpers.CreateByteArray(100);
var filename = Path.GetTempPath() + "test.dat";
File.WriteAllBytes(filename, bytes);
using (var buffer = new ByteBuffer(filename)) {
var dr1 = new ByteRange(20, new byte[] { 65, 66, 67, 68 });
buffer.Overwrite(dr1);
var dr2 = new ByteRange(18, new byte[] { 65, 66, 67, 68, 69, 3, 4, 5, 6, 7, 8 });
buffer.Overwrite(dr2);
var dr3 = new ByteRange(50, new byte[] { 65, 66, 67, 68 });
buffer.Overwrite(dr3);
var dr4 = new ByteRange(48, new byte[] { 65, 66, 67, 68 });
buffer.Overwrite(dr4);
var dr5 = new ByteRange(50, new byte[] { 11, 33, 37, 5, 5, 6, 7, 8, 9 });
buffer.Overwrite(dr5);
foreach (var dr in buffer.DataRanges)
{
Debug.WriteLine(dr);
}
Assert.IsTrue(buffer.DataRanges.Count() == 6);
Assert.IsTrue(buffer.Size == 100);
}
}
/// <summary>
/// 从流中读取count字节的范围标记
/// 并将流内的位置向前推进count个字节
/// </summary>
/// <param name="count">字节数</param>
/// <returns></returns>
/// <exception cref="ArgumentNullException"></exception>
public IByteRange ReadByteRange(int count)
{
var range = new ByteRange(base.GetBuffer(), this.Position, count);
this.Position = this.Position + count;
return(range);
}
public async Task <byte[]> GetBytes(ByteRange range, CancellationToken cancellationToken = default)
{
var stream = new System.IO.MemoryStream();
await _getRequest.DownloadRangeAsync(stream, new RangeHeaderValue(range.Start, range.End), cancellationToken);
return(stream.ToArray());
}
public void WithoutMaxBytesTest()
{
// given: range and byte rule
ByteRange range = new ByteRange(0, 11);
EveryNthByteIndexProvider rule = new EveryNthByteIndexProvider(range, 2);
rule.CreatePossibleByteIndexes();
List <uint> expectedIndexes = new List <uint>()
{
1,
3,
5,
7,
9,
11
};
// when: getting the bytes
List <uint> actualIndexes = new List <uint>();
while (rule.ByteIndexPool.Count != 0)
{
actualIndexes.Add(rule.GetNextByteIndex());
}
// then: indexes match
CollectionAssert.AreEqual(expectedIndexes, actualIndexes);
}
public DeleteBulkTextCommand(HexEdit hexEdit, Range range) : base(hexEdit)
{
var data = new byte[range.Count];
hexEdit.Buffer.GetBytes(range.Start, (int)range.Count, data);
_byteRange = new ByteRange(range.Start, data);
}
public void Append(ByteRange other)
{
if (!CanAppend(other))
{
throw new InvalidOperationException();
}
Length += other.Length;
}
public Dummy(IStructuralNode?parent, string name, ByteRange byteRange, int count, Func <int, IStructuralNode> factory)
: base(parent)
{
Name = name;
ByteRange = byteRange;
Count = count;
_factory = factory;
}
public void PopConstraint()
{
if (_ConstraintStack.Count > 0) _CurrentConstraint = _ConstraintStack.Pop();
else
{
Trace.WriteLine("Attempted to pop constraint too many times.", "WARNING");
_CurrentConstraint = ByteRange.MaxValue;
}
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="range">The byte range to get possible indexes from.</param>
/// <param name="numBytesToGlitch">Amount of bytes to glitch.</param>
public ByteIndexProviderBase(ByteRange range, uint numBytesToGlitch)
{
_range = range;
if (numBytesToGlitch <= 0)
throw new ArgumentOutOfRangeException(nameof(numBytesToGlitch));
_numBytesToGlitch = numBytesToGlitch;
_possibleByteIndexes = new List<uint>();
}
/// <summary>
/// Extension method that allows for <see cref="IntegralRangeBase{TIntegralType}.Constrain"/>
/// to be called on a <see cref="Byte"/> subject with the range and exclusivity passed as a
/// parameter, rather than on the <see cref="IntegralRangeBase{TIntegralType}"/> object
/// with a <see cref="Byte"/> parameter.
/// </summary>
/// <param name="this">
/// The subject <see cref="Byte"/> value in which to check against the <paramref name="range"/>
/// parameter to constrain a value within a range with an implicit inclusive comparison mode.
/// </param>
/// <param name="range">
/// An instance of the type <see cref="ByteRange"/>, describing a range of numeric values in
/// which the <paramref name="this"/> subject is to be compared against.
/// </param>
/// <exception cref="ArgumentNullException">
/// Thrown when the specified <paramref name="range"/> is <see langword="null"/>.
/// </exception>
/// <returns>
/// A <see cref="Byte"/> value that is the <paramref name="this"/> subject value adjusted to
/// force the range of possible values to be within the provided <paramref cref="range"/>
/// parameter, using <see cref="EndpointExclusivity.Inclusive"/> as the comparison mode.
/// </returns>
public static Byte Constrain(
this Byte @this,
[NotNull] ByteRange range)
{
range.IsNotNull(nameof(range));
return(range
.Constrain(
@this));
}
private async Task <byte[]> GetRangeBytes(string Bucket, string Key, ByteRange Range)
{
GetObjectRequest request = new GetObjectRequest
{
BucketName = Bucket,
Key = Key,
ByteRange = Range
};
var response = await s3.GetObjectAsync(request);
return(StreamToArray(response.ResponseStream));
}
/// <summary>
/// Extension method that allows for <see cref="IntegralRangeBase{TIntegralType}.IsNotWithin"/>
/// to be called on a <see cref="Byte"/> subject with the range and exclusivity passed as a
/// parameter, rather than on the <see cref="IntegralRangeBase{TIntegralType}"/> object
/// with a <see cref="Byte"/> parameter.
/// </summary>
/// <param name="this">
/// The subject <see cref="Byte"/> value in which to check against the <paramref name="range"/>
/// parameter to determine whether it is within the range, taking into account the exclusivity.
/// </param>
/// <param name="range">
/// An instance of the type <see cref="ByteRange"/>, describing a range of numeric values in
/// which the <paramref name="this"/> subject is to be compared against.
/// </param>
/// <param name="exclusivity">
/// A value indicating whether to perform the upper and lower bounds comparisons including
/// the range's Minimum and Maximum bounds, or to exclude them. This parameter is optional,
/// and the default value is <see cref="EndpointExclusivity.Inclusive"/>.
/// </param>
/// <exception cref="ArgumentNullException">
/// Thrown when the specified <paramref name="range"/> is <see langword="null"/>.
/// </exception>
/// <returns>
/// A <see cref="Byte"/> value indicating whether or not the <paramref name="this"/> subject
/// is within the provided <paramref cref="range"/> parameter, taking into account the
/// <see cref="EndpointExclusivity"/> mode via the <paramref name="exclusivity"/> parameter.
/// This comparison is the logical inverse of the <see cref="IsNotWithin"/> extension method.
/// </returns>
public static bool IsNotWithin(
this Byte @this,
[NotNull] ByteRange range,
EndpointExclusivity exclusivity = EndpointExclusivity.Inclusive)
{
range.IsNotNull(nameof(range));
return(range
.IsNotWithin(
@this,
exclusivity));
}
public static async Task <String> CreateAsync(ByteRange byteRange)
{
return(await Task.Run(() => {
int byteRangeValue = (int)byteRange;
byte[] randomBytes = new byte[byteRangeValue / 8];
using (var generator = RandomNumberGenerator.Create())
{
generator.GetBytes(randomBytes);
return Convert.ToBase64String(randomBytes);
}
}));
}
public static async Task <String> CreateAsync(string password, string salt, ByteRange byteRange)
{
return(await Task.Run(() => {
return Convert.ToBase64String(KeyDerivation.Pbkdf2(
password: password,
salt: Encoding.UTF8.GetBytes(salt),
prf: KeyDerivationPrf.HMACSHA1,
iterationCount: 10000,
//numBytesRequested: 256 / 8)
numBytesRequested: (int)byteRange / 8)
);
}));
}
public ResumeFileResult(string fileName, string ifNoneMatch, string ifModifiedSince, string ifMatch, string ifUnmodifiedSince, string ifRange, string range, string downloadFileName) : base(fileName, new MimeMapper().GetMimeFromPath(fileName))
{
_file = new FileInfo(fileName);
_lastModified = _file.LastWriteTime.ToString("R");
_rangeRequest = range != null;
_byteRange = Range(range);
_etag = Etag();
_ifNoneMatch = ifNoneMatch;
_ifModifiedSince = ifModifiedSince;
_ifMatch = ifMatch;
_ifUnmodifiedSince = ifUnmodifiedSince;
_ifRange = ifRange;
_downloadFileName = downloadFileName;
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="range">Range to glitch.</param>
/// <param name="maxNumBytesToGlitch">Maximum number of bytes to glitch.</param>
/// <param name="n"/>Byte skip factor.
public EveryNthByteIndexProvider(ByteRange range, uint maxNumBytesToGlitch, uint n)
: base(range, maxNumBytesToGlitch)
{
if (n == 0 || n > range.End - range.Start)
{
throw new ArgumentOutOfRangeException(nameof(n));
}
if (maxNumBytesToGlitch == 0)
{
throw new ArgumentOutOfRangeException(nameof(maxNumBytesToGlitch));
}
_n = n;
}
/// <summary>
/// Extension method that performs a transformation on the <see cref="Byte"/> subject using
/// linear mapping to re-map from the provided initial range <paramref name="startRange"/>
/// to the target range <paramref name="endRange"/>.
/// </summary>
/// <param name="this">
/// The subject <see cref="Byte"/> to perform the linear map range re-mapping upon.
/// </param>
/// <param name="startRange">
/// An instance of the type <see cref="ByteRange"/>, describing a range of numeric values in
/// which the linear re-mapping uses as the initial range of the subject.
/// </param>
/// <param name="endRange">
/// An instance of the type <see cref="ByteRange"/>, describing a range of numeric values in
/// which the linear re-mapping uses as the target range of the return value.
/// </param>
/// <exception cref="ArgumentNullException">
/// Thrown when either the <paramref name="startRange"/> or the <paramref name="endRange"/>
/// parameters are equal to <see langword="null"/>.
/// </exception>
/// <returns>
/// A <see cref="Byte"/> value that has been linearly mapped to the <paramref name="startRange"/>
/// parameter and re-mapped to the <paramref name="endRange"/> parameter.
/// </returns>
public static Byte LinearMap(
this Byte @this,
[NotNull] ByteRange startRange,
[NotNull] ByteRange endRange)
{
startRange.IsNotNull(nameof(startRange));
endRange.IsNotNull(nameof(endRange));
return((
(@this - startRange.Minimum) *
(endRange.Maximum - endRange.Minimum) /
(startRange.Maximum - startRange.Minimum) +
endRange.Minimum)
.To <Byte>());
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="range">Range to glitch.</param>
/// <param name="maxNumBytesToGlitch">Maximum number of bytes to glitch.</param>
/// <param name="bytes">The bytes to check with the <paramref name="conditionPredicate"/>.</param>
/// <param name="conditionPredicate">The condition to check each byte for.</param>
public ConditionedByteIndexProvider(ByteRange range, uint maxNumBytesToGlitch, byte[] bytes, Func <byte, bool> conditionPredicate)
: base(range, maxNumBytesToGlitch)
{
if (bytes == null)
{
throw new ArgumentNullException(nameof(bytes));
}
if (bytes.Length == 0)
{
throw new ArgumentException(string.Format("{0} can't be empty", nameof(bytes)));
}
_possibleBytes = bytes.SubArray(_range.Start, _range.End - _range.Start);
_conditionPredicate = conditionPredicate ?? throw new ArgumentNullException(nameof(conditionPredicate));
}
/// <summary>
/// 接收到策略请求
/// </summary>
/// <param name="session">会话对象</param>
/// <param name="buffer">数据</param>
protected override void OnReceive(SessionBase session, ReceiveBuffer buffer)
{
var xml = "<cross-domain-policy><allow-access-from domain=\"*\" to-ports=\"*\"/></cross-domain-policy>\0";
var bytes = Encoding.UTF8.GetBytes(xml.ToCharArray()); // 需要把字符串转为Char[]
var byteRange = new ByteRange(bytes);
try
{
session.Send(byteRange);
}
finally
{
session.Close();
}
}
public void PushConstraint(long offset, long length)
{
if (offset < _CurrentConstraint.Start)
{
Trace.WriteLine(String.Format("Attempted to set a new constraint ({0},{1}) offset outside the bounds of the existing constraint({2},{3}).", offset, length, _CurrentConstraint.Start, _CurrentConstraint.Length), "WARNING");
offset = _CurrentConstraint.Start;
}
if (offset + length > _CurrentConstraint.End)
{
Trace.WriteLine(String.Format("Attempted to set a new constraint ({0},{1}) length outside the bounds of the existing constraint({2},{3}).", offset, length, _CurrentConstraint.Start, _CurrentConstraint.Length), "WARNING");
length = _CurrentConstraint.End - offset;
}
if (_CurrentConstraint != null) _ConstraintStack.Push(_CurrentConstraint);
_CurrentConstraint = new ByteRange(offset, offset + length);
}
/// <summary>
/// 尝试发送数据到客户端
/// </summary>
/// <param name="range"></param>
/// <returns></returns>
private bool TrySend(ByteRange range)
{
if (range == null)
{
return(false);
}
try
{
this.session.Send(range);
return(true);
}
catch (Exception)
{
return(false);
}
}
/// <summary>
/// Returns the amount of bytes remaining that need to be pulled down from S3.
/// </summary>
/// <param name="filepath">The fully qualified path of the file.</param>
/// <returns></returns>
static ByteRange ByteRangeRemainingForDownload(string filepath)
{
/*
* Initialize the ByteRange as the whole file.
* long.MaxValue works regardless of the size because
* S3 will stop sending bits if you specify beyond the
* size of the file anyways.
*/
ByteRange byteRange = new ByteRange(0, long.MaxValue);
if (File.Exists(filepath))
{
FileInfo info = new FileInfo(filepath);
byteRange.Start = info.Length;
}
return(byteRange);
}
public void TestInsert()
{
var bytes = Helpers.CreateByteArray(100);
var filename = Path.GetTempPath() + "test.dat";
File.WriteAllBytes(filename, bytes);
using (var buffer = new ByteBuffer(filename)) {
var dr1 = new ByteRange(20, new byte[] { 65, 66, 67, 68 });
buffer.Insert(dr1);
var dr2 = new ByteRange(50, new byte[] { 65, 66, 67, 68, 80 });
buffer.Insert(dr2);
var dr3 = new ByteRange(48, new byte[] { 65, 66, 67, 68, 77, 33, 55 });
buffer.Insert(dr3);
Assert.IsTrue(buffer.Size == 116);
}
}
private void DownloadIndexOnce()
{
//Create index storage only if index segment is provided
if (this.indexDownloaded)
{
return;
}
indexDownloaded = true;
ByteRange range = new ByteRange(IndexSegment.ByteRange);
try
{
Logger.Debug($"Downloading Index Segment {IndexSegment.Url} {range}");
byte[] data = Downloader.DownloadData(IndexSegment.Url, range);
Logger.Debug($"Downloaded successfully Index Segment {IndexSegment.Url} {range}");
ProcessIndexData(data, (UInt64)range.High);
// Update Duration to correspond to what's contained in index data
if (segments_.Count > 0)
{
var lastEntry = segments_.Count - 1;
// Update duration with information from index segment data.
// Index segment data is used for seeks. If varies from Manifest Duration
// especially if it is shorter, this will cause missing segments.
//
Duration = segments_[lastEntry].Period.Start + segments_[lastEntry].Period.Duration;
}
}
catch (WebException e)
{
Logger.Error(e, $"Downloading Index Segment FAILED {IndexSegment.Url} ({e.Status})");
// No need to add any special error handling for failed downloads. Indexed content
// will return null segments if no index data is present.
}
catch (Exception e)
{
Logger.Error(e, $"Downloading Index Segment FAILED {IndexSegment.Url}");
}
}
public static void ThrowIfNotWithin(
[AssertionCondition(IS_NOT_NULL)] this Byte @this,
[NotNull] ByteRange range,
[InvokerParameterName] string elementName,
EndpointExclusivity exclusivity = Inclusive,
[CallerMemberName] string callerMemberName = "")
{
range.IsNotNull(nameof(range));
if (range
.IsNotWithin(
@this,
exclusivity))
{
throw new ArgumentOutOfRangeException(
elementName,
$"Parameter {elementName.SQuote()} passed to the method {callerMemberName.SQuote()} " +
$"must be within [{range.Minimum} and {range.Maximum}], {exclusivity}ly.");
}
}
public SequencePoint(FilePath path, int startLine, int startColumn, int endLine, int endColumn, ByteRange byteRange)
: base(path, startLine, startColumn, endLine, endColumn)
{
ByteRange = byteRange;
}
internal static unsafe bool ProcessRangeRequest(HttpContext context, string physicalPath, long fileLength, string rangeHeader, string etag, DateTime lastModified)
{
long offset;
long length;
HttpRequest request = context.Request;
HttpResponse response = context.Response;
bool flag = false;
if (fileLength <= 0L)
{
SendRangeNotSatisfiable(response, fileLength);
return true;
}
string ifRangeHeader = request.Headers["If-Range"];
if ((ifRangeHeader != null) && (ifRangeHeader.Length > 1))
{
if (ifRangeHeader[0] == '"')
{
if (ifRangeHeader != etag)
{
return flag;
}
}
else
{
if ((ifRangeHeader[0] == 'W') && (ifRangeHeader[1] == '/'))
{
return flag;
}
if (IsOutDated(ifRangeHeader, lastModified))
{
return flag;
}
}
}
int index = rangeHeader.IndexOf('=');
if ((index == -1) || (index == (rangeHeader.Length - 1)))
{
return flag;
}
int startIndex = index + 1;
bool flag2 = true;
bool flag4 = false;
ByteRange[] rangeArray = null;
int num5 = 0;
long num6 = 0L;
while ((startIndex < rangeHeader.Length) && flag2)
{
bool flag3;
flag2 = GetNextRange(rangeHeader, ref startIndex, fileLength, out offset, out length, out flag3);
if (!flag2)
{
break;
}
if (flag3)
{
if (rangeArray == null)
{
rangeArray = new ByteRange[0x10];
}
if (num5 >= rangeArray.Length)
{
ByteRange[] rangeArray2 = new ByteRange[rangeArray.Length * 2];
int len = rangeArray.Length * Marshal.SizeOf(rangeArray[0]);
fixed (ByteRange* rangeRef = rangeArray)
{
fixed (ByteRange* rangeRef2 = rangeArray2)
{
memcpyimpl((byte*)rangeRef, (byte*)rangeRef2, len);
}
}
rangeArray = rangeArray2;
}
rangeArray[num5].Offset = offset;
rangeArray[num5].Length = length;
num5++;
num6 += length;
if (num6 > (fileLength * 5L))
{
flag4 = true;
break;
}
}
}
if (!flag2)
{
return flag;
}
if (flag4)
{
SendBadRequest(response);
return true;
}
if (num5 == 0)
{
SendRangeNotSatisfiable(response, fileLength);
return true;
}
string mimeMapping = MimeMapping.GetMimeMapping(physicalPath);
if (num5 == 1)
{
offset = rangeArray[0].Offset;
length = rangeArray[0].Length;
response.ContentType = mimeMapping;
string str3 = string.Format(CultureInfo.InvariantCulture, "bytes {0}-{1}/{2}", new object[] { offset, (offset + length) - 1L, fileLength });
response.AppendHeader("Content-Range", str3);
SendFile(physicalPath, offset, length, fileLength, context);
}
else
{
response.ContentType = "multipart/byteranges; boundary=<q1w2e3r4t5y6u7i8o9p0zaxscdvfbgnhmjklkl>";
string s = "Content-Type: " + mimeMapping + "\r\n";
for (int i = 0; i < num5; i++)
{
offset = rangeArray[i].Offset;
length = rangeArray[i].Length;
response.Write("--<q1w2e3r4t5y6u7i8o9p0zaxscdvfbgnhmjklkl>\r\n");
response.Write(s);
response.Write("Content-Range: ");
string str4 = string.Format(CultureInfo.InvariantCulture, "bytes {0}-{1}/{2}", new object[] { offset, (offset + length) - 1L, fileLength });
response.Write(str4);
response.Write("\r\n\r\n");
SendFile(physicalPath, offset, length, fileLength, context);
response.Write("\r\n");
}
response.Write("--<q1w2e3r4t5y6u7i8o9p0zaxscdvfbgnhmjklkl>--\r\n\r\n");
}
response.StatusCode = 0xce;
response.AppendHeader("Last-Modified", (string)typeof(HttpUtility).GetMethod("FormatHttpDateTime").Invoke(typeof(HttpUtility), new object[] { lastModified }));
response.AppendHeader("Accept-Ranges", "bytes");
response.AppendHeader("ETag", etag);
response.AppendHeader("Cache-Control", "public");
return true;
}
/// <summary>
/// 输出内容
/// </summary>
/// <param name="range">内容</param>
/// <returns></returns>
public bool WriteContent(ByteRange range)
{
return this.TrySend(range);
}
/// <summary>
/// 尝试发送数据到客户端
/// </summary>
/// <param name="range"></param>
/// <returns></returns>
private bool TrySend(ByteRange range)
{
if (range == null)
{
return false;
}
try
{
this.session.Send(range);
return true;
}
catch (Exception)
{
return false;
}
}
