public override object InternalExecute(Program program, object[] arguments)
{
using (FileStream file = File.Open((string)arguments[0], FileMode.Append, FileAccess.Write, FileShare.Read))
{
if (Operator.Operands[1].DataType.Is(program.DataTypes.SystemString))
{
using (StreamWriter writer = new StreamWriter(file))
{
writer.Write((string)arguments[1]);
}
}
else
{
if (arguments[1] is StreamID)
{
using (Stream sourceStream = program.StreamManager.Open((StreamID)arguments[1], LockMode.Exclusive))
{
StreamUtility.CopyStream(sourceStream, file);
}
}
else
{
byte[] tempValue = (byte[])arguments[1];
file.Write(tempValue, 0, tempValue.Length);
}
}
}
return(null);
}
/// <summary>
/// Find the end of the header section in a byte array.<br/>
/// The headers have ended when a blank line is found
/// </summary>
/// <param name="messageContent">The full message stored as a byte array</param>
/// <returns>The position of the line just after the header end blank line</returns>
/// <exception cref="ArgumentNullException">If <paramref name="messageContent"/> is <see langword="null"/></exception>
private static int FindHeaderEndPosition(byte[] messageContent)
{
if (messageContent == null)
{
throw new ArgumentNullException("messageContent");
}
// Convert the byte array into a stream
using (Stream stream = new MemoryStream(messageContent))
{
while (true)
{
// Read a line from the stream. We know headers are in US-ASCII
// therefore it is not problem to read them as such
string line = StreamUtility.ReadLineAsAscii(stream);
// The end of headers is signaled when a blank line is found
// or if the line is null - in which case the email is actually an email with
// only headers but no body
if (string.IsNullOrEmpty(line))
{
return((int)stream.Position);
}
}
}
}
/// <summary>
/// Get the sizes in bytes of all the messages.<br/>
/// Messages marked as deleted are not listed.
/// </summary>
/// <returns>Size of each message excluding deleted ones</returns>
/// <exception cref="PopServerException">If the server did not accept the LIST command</exception>
public List <int> GetMessageSizes()
{
AssertDisposed();
if (State != ConnectionState.Transaction)
{
throw new InvalidUseException("Cannot get message sizes, when the user has not been authenticated yet");
}
// RFC Example:
// C: LIST
// S: +OK 2 messages (320 octets)
// S: 1 120
// S: 2 200
// S: . // End of multi-line
SendCommand("LIST");
List <int> sizes = new List <int>();
string response;
// Read until end of multi-line
while (!".".Equals(response = StreamUtility.ReadLineAsAscii(Stream)))
{
sizes.Add(int.Parse(response.Split(' ')[1], CultureInfo.InvariantCulture));
}
return(sizes);
}
private void ImageRead(PipeRequest request, Pipe pipe)
{
if (Active)
{
_imageRequest = null;
try
{
if (request.Result.IsNative)
{
byte[] resultBytes = request.Result.AsByteArray;
SetImage(System.Drawing.Image.FromStream(new MemoryStream(resultBytes, 0, resultBytes.Length, false, true)));
}
else
{
using (Stream stream = request.Result.OpenStream())
{
MemoryStream copyStream = new MemoryStream();
StreamUtility.CopyStream(stream, copyStream);
SetImage(System.Drawing.Image.FromStream(copyStream));
}
}
}
catch
{
SetImage(ImageUtility.GetErrorImage());
}
}
}
/// <summary>
/// Creates a stream with the relative path to the assembly
/// </summary>
public static Stream CreateRefreshFileStream(string root, string assemblyPath)
{
string projectPath = PathUtility.EnsureTrailingSlash(root);
string relativeAssemblyPath = PathUtility.GetRelativePath(projectPath, assemblyPath);
return(StreamUtility.StreamFromString(relativeAssemblyPath));
}
public void Write(EndianBinaryWriter writer)
{
long start = writer.BaseStream.Position;
writer.WriteSignature("VTX1".ToCharArray());
writer.Write(0); // Placeholder for section size
writer.Write(0x40); // Offset to attribute data
for (int i = 0; i < 13; i++) // Placeholders for attribute data offsets
{
writer.Write(0);
}
WriteAttributeHeaders(writer);
StreamUtility.PadStreamWithString(writer, 32);
WriteAttributeData(writer, (int)start);
long end = writer.BaseStream.Position;
long length = (end - start);
writer.Seek((int)start + 4, System.IO.SeekOrigin.Begin);
writer.Write((int)length);
writer.Seek((int)end, System.IO.SeekOrigin.Begin);
}
protected void LoadImage()
{
if (!ImageSource.Loading)
{
try
{
ImageSource.LoadImage();
if (ImageSource.Stream != null)
{
using (DAE.Runtime.Data.Scalar newValue = new DAE.Runtime.Data.Scalar(ImageControl.Source.DataSet.Process.ValueManager, ImageControl.Source.DataSet.Process.DataTypes.SystemGraphic))
{
using (Stream stream = newValue.OpenStream())
{
using (ImageSource.Stream)
{
ImageSource.Stream.Position = 0;
StreamUtility.CopyStream(ImageSource.Stream, stream);
ImageControl.DataField.Value = newValue;
ImageControl.LoadImage();
}
}
}
}
}
finally
{
if (ImageSource.GetType() == typeof(ImageCaptureForm))
{
ImageSource = null;
}
}
}
}
protected void ImageRead(PipeRequest request, Pipe pipe)
{
_imageRequest = null;
try
{
if (request.Result.IsNative)
{
byte[] resultBytes = request.Result.AsByteArray;
_image = System.Drawing.Image.FromStream(new MemoryStream(resultBytes, 0, resultBytes.Length, false, true));
}
else
{
using (Stream stream = request.Result.OpenStream())
{
MemoryStream copyStream = new MemoryStream();
StreamUtility.CopyStream(stream, copyStream);
_image = System.Drawing.Image.FromStream(copyStream);
}
}
}
catch
{
_image = ImageUtility.GetErrorImage();
}
FCallBack(this, new EventArgs());
}
public void SetImageAccepted(IFormInterface AForm)
{
FImageSource = (IImageSource)AForm;
if (FImageSource.Stream == null)
{
DataField.ClearValue();
}
else
{
using (DAE.Runtime.Data.Scalar LNewValue = new DAE.Runtime.Data.Scalar(Source.DataView.Process.ValueManager, Source.DataView.Process.DataTypes.SystemGraphic))
{
Stream LStream = LNewValue.OpenStream();
try
{
FImageSource.Stream.Position = 0;
StreamUtility.CopyStream(FImageSource.Stream, LStream);
}
finally
{
LStream.Close();
}
DataField.Value = LNewValue;
}
}
}
public async Task SplitIntoMailboxes()
{
var body = "My body\nNext Line";
_queue.References.Add(
new MockMailReference(
"int-mail",
"*****@*****.**",
new[] { "*****@*****.**", "*****@*****.**" }.ToImmutableList(),
true,
body,
_queue));
await _dispatcher.ProcessAllMailReferencesAsync(CancellationToken.None);
Assert.Empty(_queue.References);
Assert.Empty(_transfer.References);
Assert.Equal(2, _mailbox.SavedReferences.Count());
var expected = new HashSet <string> {
"*****@*****.**", "*****@*****.**"
};
foreach (MockMailboxItemReference r in _mailbox.SavedReferences)
{
Assert.Contains(r.Mailbox, expected);
expected.Remove(r.Mailbox);
Assert.Equal(body, await StreamUtility.ReadAllFromStreamAsync(r.BackupBodyStream));
r.Dispose();
}
}
public async Task InternalSenderCanSendAnywhere()
{
var body = "My body\nNext Line";
_queue.References.Add(
new MockMailReference(
"ext-mail",
"*****@*****.**",
new[] { "*****@*****.**" }.ToImmutableList(),
true,
body,
_queue));
await _dispatcher.ProcessAllMailReferencesAsync(CancellationToken.None);
Assert.Empty(_queue.References);
Assert.Equal(1, _queue.DeletedReferences.Count);
Assert.Equal(1, _transfer.References.Count(r => r.IsSaved));
string newBody;
using (MockMailReference reference = _transfer.References.FirstOrDefault(r => r.IsSaved))
{
Assert.NotNull(reference);
Assert.Equal("*****@*****.**", reference.Sender);
SequenceAssert.SameSet(new[] { "*****@*****.**" }, reference.Recipients);
newBody = await StreamUtility.ReadAllFromStreamAsync(reference.BackupBodyStream);
}
Assert.Equal(body, newBody);
Assert.Empty(_mailbox.References);
}
internal void InternalSaveToFile()
{
if (String.IsNullOrEmpty(_fileName))
{
_fileName = PromptForSaveName();
}
// The file must be writable to overwrite
if (File.Exists(_fileName))
{
FileUtility.EnsureWriteable(_fileName);
}
// Write/rewrite the file
using (FileStream fileStream = new FileStream(_fileName, FileMode.Create, FileAccess.Write))
if (((Schema.ScalarType)DataField.DataType).NativeType == typeof(byte[]))
{
using (Stream stream = DataField.Value.OpenStream())
StreamUtility.CopyStream(stream, fileStream);
}
else
{
using (StreamWriter streamWriter = new StreamWriter(fileStream))
streamWriter.Write(DataField.Value.AsString);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ErrorHtmlResponse"/> class.
/// </summary>
/// <param name="statusCode">The status code.</param>
public ErrorHtmlResponse(HttpStatusCode statusCode)
{
this.StatusCode = statusCode;
this.ContentType = WebResources.ContentTypeHtmlUtf8;
this.Contents = stream =>
{
string page;
switch (this.StatusCode)
{
case HttpStatusCode.NotFound:
page = WebResources.PageNotFound;
break;
case HttpStatusCode.InternalServerError:
page = WebResources.PageInternalServerError;
break;
default:
page = string.Empty;
break;
}
StreamUtility.WriteUtf8StringToStream(page, stream);
};
}
protected void ImageRead(PipeRequest request, Pipe pipe)
{
if (Active)
{
try
{
_imageRequest = null;
try
{
if (request.Result.IsNative)
{
byte[] resultBytes = request.Result.AsByteArray;
_internalImage = System.Drawing.Image.FromStream(new MemoryStream(resultBytes, 0, resultBytes.Length, false, true));
}
else
{
using (Stream stream = request.Result.OpenStream())
{
MemoryStream copyStream = new MemoryStream();
StreamUtility.CopyStream(stream, copyStream);
_internalImage = System.Drawing.Image.FromStream(copyStream);
}
}
}
catch
{
_internalImage = ImageUtility.GetErrorImage();
}
}
finally
{
UpdateColumn();
}
}
}
public StreamID Reference(StreamID streamID)
{
LocalStreamHeader targetHeader;
if (_headers.TryGetValue(streamID, out targetHeader) && (targetHeader.Stream != null) && targetHeader.Stream.Modified)
{
StreamID localStreamID = Allocate();
Stream stream = Open(localStreamID, LockMode.Exclusive);
try
{
Stream targetStream = new CoverStream(targetHeader.Stream);
try
{
StreamUtility.CopyStream(targetStream, stream);
return(localStreamID);
}
finally
{
targetStream.Close();
}
}
finally
{
stream.Close();
Close(localStreamID);
}
}
else
{
StreamID localStreamID = _sourceStreamManager.Reference(streamID);
LocalStreamHeader header = new LocalStreamHeader(localStreamID);
_headers.Add(header);
return(localStreamID);
}
}
public void ProcessRequest(HttpContext AContext)
{
AContext.Response.ContentType = FrontendUtility.CXmlContentType;
string LUri = HttpUtility.UrlDecode(AContext.Request.QueryString[DilxUtility.UriParameter]);
if (LUri == null)
{
throw new ServerException(ServerException.Codes.MissingParameter, DilxUtility.UriParameter);
}
LUri = AContext.Request.MapPath(new Uri(LUri).LocalPath);
// Validate that the request is for a DILX document
if (String.Compare(Path.GetExtension(LUri), DilxUtility.CDilxExtension, true) != 0)
{
throw new ServerException(ServerException.Codes.UnknownExtension, Path.GetExtension(LUri));
}
// Read the DILX file
using (FileStream LStream = new FileStream(LUri, FileMode.Open, FileAccess.Read, FileShare.Read))
{
StreamUtility.CopyStream(LStream, AContext.Response.OutputStream);
}
AContext.Response.End();
}
public Stream Read(string imageID)
{
string fileName = BuildFileName(imageID);
if (File.Exists(fileName))
return File.OpenRead(fileName);
else
{
FileStream fileStream = new FileStream(fileName, FileMode.CreateNew, FileAccess.ReadWrite);
try
{
object tempValue = _identifiers[imageID];
if (tempValue is String)
{
using (DAE.Runtime.Data.Scalar scalar = (DAE.Runtime.Data.Scalar)_session.Pipe.RequestDocument((string)tempValue))
StreamUtility.CopyStream(scalar.OpenStream(), fileStream);
}
else
((GetImageHandler)tempValue)(imageID, fileStream);
fileStream.Position = 0;
return fileStream;
}
catch
{
fileStream.Close();
if (File.Exists(fileName))
File.Delete(fileName);
throw;
}
}
}
public void StreamUtility_ReadBoolean_2()
{
byte[] buffer = new byte[0];
MemoryStream stream = new MemoryStream(buffer);
StreamUtility.ReadBoolean(stream);
}
private List <Tuple <int, int> > WritePrimitives(EndianBinaryWriter writer)
{
List <Tuple <int, int> > outList = new List <Tuple <int, int> >();
long start = writer.BaseStream.Position;
foreach (Shape shape in Shapes)
{
foreach (Packet pack in shape.Packets)
{
int offset = (int)(writer.BaseStream.Position - start);
foreach (Primitive prim in pack.Primitives)
{
prim.Write(writer, shape.Descriptor);
}
StreamUtility.PadStreamWithZero(writer, 32);
outList.Add(new Tuple <int, int>((int)((writer.BaseStream.Position - start) - offset), offset));
}
}
return(outList);
}
public void StreamUtility_HostToNetwork16_1()
{
byte[] array = { 1, 2 };
StreamUtility.HostToNetwork16(array, 0);
Assert.AreEqual(2, array[0]);
Assert.AreEqual(1, array[1]);
}
public void Write(EndianBinaryWriter writer)
{
long start = writer.BaseStream.Position;
writer.Write("DRW1".ToCharArray());
writer.Write(0); // Placeholder for section size
writer.Write((short)WeightTypeCheck.Count);
writer.Write((short)-1);
writer.Write(20); // Offset to weight type bools, always 20
writer.Write(20 + WeightTypeCheck.Count); // Offset to indices, always 20 + number of weight type bools
foreach (bool bol in WeightTypeCheck)
{
writer.Write(bol);
}
foreach (int inte in Indices)
{
writer.Write((short)inte);
}
StreamUtility.PadStreamWithString(writer, 32);
long end = writer.BaseStream.Position;
long length = (end - start);
writer.Seek((int)start + 4, System.IO.SeekOrigin.Begin);
writer.Write((int)length);
writer.Seek((int)end, System.IO.SeekOrigin.Begin);
}
public void StreamUtility_ReadExact_2()
{
byte[] buffer = { 1, 2 };
MemoryStream stream = new MemoryStream(buffer);
StreamUtility.ReadExact(stream, 4);
}
public void WriteImage()
{
WebSession = (Web.Session)Session["WebSession"];
Response.ClearContent();
Response.BufferOutput = false;
string imageID = Request.QueryString["ImageID"];
if ((imageID != null) && (imageID != String.Empty))
{
using (Stream stream = WebSession.ImageCache.Read(imageID))
{
Response.AppendHeader(ContentLengthHeader, stream.Length.ToString());
StreamUtility.CopyStream(stream, Response.OutputStream);
}
}
else
{
imageID = Request.QueryString["HandlerID"];
if ((imageID != null) && (imageID != String.Empty))
{
LoadImageHandler handler = WebSession.ImageCache.GetImageHandler(imageID);
if (handler != null)
{
handler(Context, imageID, Response.OutputStream);
}
}
}
}
public void StreamUtility_ReadAsMuchAsPossible_3()
{
byte[] buffer = { 1, 2, 3, 4 };
MemoryStream stream = new MemoryStream(buffer);
StreamUtility.ReadAsMuchAsPossible(stream, -3);
}
/// <summary>
/// Loads a dicom file, stopping at a certain tag
/// </summary>
/// <param name="file">Filename</param>
/// <param name="stopTag">Tag to stop parsing at</param>
/// <param name="options">DICOM read options</param>
public DicomReadStatus Load(String file, DicomTag stopTag, DicomReadOptions options)
{
using (FileStream fs = File.OpenRead(file)) {
fs.Seek(128, SeekOrigin.Begin);
CheckFileHeader(fs);
DicomStreamReader dsr = new DicomStreamReader(fs);
_metainfo = new DcmFileMetaInfo();
dsr.Dataset = _metainfo;
dsr.Read(DcmFileMetaInfo.StopTag, options | DicomReadOptions.FileMetaInfoOnly);
if (_metainfo.TransferSyntax.IsDeflate)
{
MemoryStream ms = StreamUtility.Deflate(fs, false);
dsr = new DicomStreamReader(ms);
}
_dataset = new DcmDataset(_metainfo.TransferSyntax);
dsr.Dataset = _dataset;
DicomReadStatus status = dsr.Read(stopTag, options);
fs.Close();
return(status);
}
}
public void Dispose()
{
var success = false;
try
{
string indexFileName = Path.Combine(_cachePath, IndexFileName);
using (FileStream stream = new FileStream(indexFileName, FileMode.Create, FileAccess.Write, FileShare.None))
{
_identifiers.Save(stream);
}
string cRC32FileName = Path.Combine(_cachePath, RC32FileName);
using (FileStream stream = new FileStream(cRC32FileName, FileMode.Create, FileAccess.Write, FileShare.None))
{
StreamUtility.SaveDictionary(stream, _cRC32s);
}
// Synchronize the index and CRC3 file times so that we know they were saved properly
File.SetLastWriteTimeUtc(indexFileName, File.GetLastWriteTimeUtc(cRC32FileName));
success = true;
}
finally
{
UnlockDirectory(success);
}
}
/// <summary>
/// Gets a list of unique IDs for all messages.<br/>
/// Messages marked as deleted are not listed.
/// </summary>
/// <returns>
/// A list containing the unique IDs in sorted order from message number 1 and upwards.
/// </returns>
/// <exception cref="PopServerException">If the server did not accept the UIDL command</exception>
public List <string> GetMessageUids()
{
AssertDisposed();
if (State != ConnectionState.Transaction)
{
throw new InvalidUseException("Cannot get message IDs, when the user has not been authenticated yet");
}
// RFC Example:
// C: UIDL
// S: +OK
// S: 1 whqtswO00WBw418f9t5JxYwZ
// S: 2 QhdPYR:00WBw1Ph7x7
// S: . // this is the end
SendCommand("UIDL");
List <string> uids = new List <string>();
string response;
// Keep reading until multi-line ends with a "."
while (!IsLastLineInMultiLineResponse(response = StreamUtility.ReadLineAsAscii(Stream)))
{
// Add the unique ID to the list
uids.Add(response.Split(' ')[1]);
}
return(uids);
}
private Image LoadImage(string imageExpression)
{
try
{
using (IDataValue imageData = FrontendSession.Pipe.RequestDocument(imageExpression))
{
var streamCopy = new MemoryStream();
Stream stream = imageData.OpenStream();
try
{
StreamUtility.CopyStream(stream, streamCopy);
}
finally
{
stream.Close();
}
return(Image.FromStream(streamCopy));
}
}
catch (Exception exception)
{
Dataphoria.Warnings.AppendError(this, exception, true);
// Don't rethrow
}
return(null);
}
/// <summary>
/// Method that is able to find a specific MultiPart boundary in a Stream.<br/>
/// The Stream passed should not be used for anything else then for looking for MultiPart boundaries
/// <param name="stream">The stream to find the next MultiPart boundary in. Do not use it for anything else then with this method.</param>
/// <param name="multiPartBoundary">The MultiPart boundary to look for. This should be found in the <see cref="ContentType"/> header</param>
/// <param name="lastMultipartBoundaryFound">Is set to <see langword="true"/> if the next MultiPart boundary was indicated to be the last one, by having -- appended to it. Otherwise set to <see langword="false"/></param>
/// </summary>
/// <returns>The position of the first character of the line that contained MultiPartBoundary or -1 if no (more) MultiPart boundaries was found</returns>
private static int FindPositionOfNextMultiPartBoundary(Stream stream, string multiPartBoundary, out bool lastMultipartBoundaryFound)
{
lastMultipartBoundaryFound = false;
while (true)
{
// Get the current position. This is the first position on the line - no characters of the line will
// have been read yet
int currentPos = (int)stream.Position;
// Read the line
string line = StreamUtility.ReadLineAsAscii(stream);
// If we kept reading until there was no more lines, we did not meet
// the MultiPart boundary. -1 is then returned to describe this.
if (line == null)
{
return(-1);
}
// The MultiPart boundary is the MultiPartBoundary with "--" in front of it
// which is to be at the very start of a line
if (line.StartsWith("--" + multiPartBoundary, StringComparison.Ordinal))
{
// Check if the found boundary was also the last one
lastMultipartBoundaryFound = line.StartsWith("--" + multiPartBoundary + "--", StringComparison.OrdinalIgnoreCase);
return(currentPos);
}
}
}
public void SaveFileFromStreamTest()
{
{
var stream = GetStream(str);
var file = UnitTestHelper.RootPath + "SaveFileFromStreamTest.txt";
StreamUtility.SaveFileFromStream(stream, file);
Assert.IsTrue(File.Exists(file));
Assert.IsTrue(UnitTestHelper.CheckKeywordsExist(file, str)); //检查内容已经被记录
File.Delete(file); //删除文件
}
#region 测试异步方法
Task.Run(async() =>
{
var stream = GetStream(str);
var file = UnitTestHelper.RootPath + "SaveFileFromStreamTest.txt";
await StreamUtility.SaveFileFromStreamAsync(stream, file);
Assert.IsTrue(File.Exists(file));
Assert.IsTrue(UnitTestHelper.CheckKeywordsExist(file, str)); //检查内容已经被记录
File.Delete(file); //删除文件
Console.WriteLine("=== 异步完成 ===");
}).GetAwaiter().GetResult();
#endregion
}