public Stream GetStreamContents()
{
var dir = AjaxFileUpload.GetTempFolder(this._fileId);
var filePath = Path.Combine(dir, this._fileName) + Constants.UploadTempFileExtension;
AjaxFileUpload.CheckTempFilePath(filePath);
return(File.OpenRead(filePath));
}
/// <summary>
/// Delete temporary uploaded file data from temporary folder.
/// </summary>
public void DeleteTemporaryData()
{
var dirInfo = new DirectoryInfo(AjaxFileUpload.BuildTempFolder(this._fileId));
if (dirInfo.Exists)
{
dirInfo.Delete(true);
}
}
private static bool ProcessStream(HttpContext context, HttpPostedFile httpPostedFile, string fileId, string fileName, bool chunked, bool isFirstChunk)
{
Stream destination = null;
var states = new AjaxFileUploadStates(context, fileId);
// Prepare temporary folder, we use file id as a folder name.
var tempFolder = AjaxFileUpload.BuildTempFolder(fileId);
if (!Directory.Exists(tempFolder))
{
Directory.CreateDirectory(tempFolder);
}
// Build temporary file path.
var tmpFilePath = Path.Combine(tempFolder, fileName);
if (!chunked || isFirstChunk)
{
// Create new file, if this is a first chunk or file is not chunked.
destination = new FileStream(tmpFilePath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
}
else
{
// Append data to existing teporary file for next chunks
destination = new FileStream(tmpFilePath, FileMode.Append, FileAccess.Write, FileShare.ReadWrite);
}
var totalLength = httpPostedFile.ContentLength;
var bufferSize = totalLength < ChunkSize ? totalLength : ChunkSize;
var bytesWritten = 0;
// Write uploaded data per chunk, so we can abort it anytime in a middle of process
while (bytesWritten < totalLength)
{
var bytesToWrite = bytesWritten + bufferSize > totalLength ?
totalLength - bytesWritten : bufferSize;
var buffer = new byte[bytesToWrite];
httpPostedFile.InputStream.Read(buffer, 0, bytesToWrite);
destination.Write(buffer, 0, bytesToWrite);
bytesWritten += bytesToWrite;
if (states.Abort)
{
destination.Dispose();
return(false);
}
}
destination.Close();
destination.Dispose();
return(true);
}
private static string GetTempFilePath(string fileId, string fileName)
{
var tempFolder = AjaxFileUpload.GetTempFolder(fileId);
foreach (var invalidChar in Path.GetInvalidFileNameChars())
{
fileName = fileName.Replace(invalidChar, '-');
}
return(Path.Combine(tempFolder, fileName) + Constants.UploadTempFileExtension);
}
// On Init add popup div and ajaxfileupload control to support Add image
protected override void OnInit(EventArgs e)
{
base.OnInit(e);
if (!DesignMode)
{
// Check if EnableSanitization is enabled and sanitizer provider is not configured.
if (EnableSanitization && Sanitizer == null)
{
throw new Exception("The Sanitizer is not configured in the web.config file. Either install the AjaxControlToolkit.HtmlEditor.Sanitizer NuGet package or set the EnableSanitization property to False (insecure).");
}
EnsureButtons();
var popupdiv = new HtmlGenericControl("div");
popupdiv.Attributes.Add("Id", this.ClientID + "_popupDiv");
popupdiv.Attributes.Add("style", "opacity: 0;");
popupdiv.Attributes.Add("class", "ajax__html_editor_extender_popupDiv");
ajaxFileUpload = new AjaxFileUpload();
ajaxFileUpload.ID = this.ID + "_ajaxFileUpload";
ajaxFileUpload.MaximumNumberOfFiles = 10;
ajaxFileUpload.AllowedFileTypes = "jpg,jpeg,gif,png";
ajaxFileUpload.Enabled = true;
ajaxFileUpload.OnClientUploadComplete = "ajaxClientUploadComplete";
if (ImageUploadComplete != null)
{
ajaxFileUpload.UploadComplete += ImageUploadComplete;
}
if (HasImageButton())
{
var button = (InsertImage)ToolbarButtons.FirstOrDefault(b => b.CommandName == InsertImageCommandName);
if (!String.IsNullOrWhiteSpace(button.AjaxFileUploadHandlerPath))
{
ajaxFileUpload.UploadHandlerPath = button.AjaxFileUploadHandlerPath;
}
}
popupdiv.Controls.Add(ajaxFileUpload);
var btnCancel = new HtmlGenericControl("div");
btnCancel.Attributes.Add("Id", this.ClientID + "_btnCancel");
btnCancel.Attributes.Add("style", "float: right; position:relative; padding-left: 20px; top:10px; width: 55px; border-color:black;border-style: solid; border-width: 1px;cursor:pointer;");
btnCancel.Attributes.Add("float", "right");
btnCancel.Attributes.Add("unselectable", "on");
btnCancel.InnerText = "Cancel";
popupdiv.Controls.Add(btnCancel);
this.Controls.Add(popupdiv);
}
}
private static string GetTempFilePath(string fileId, string fileName)
{
var tempFolder = AjaxFileUpload.GetTempFolder(fileId);
var invalidChars = Path.GetInvalidFileNameChars()
.Concat(new[] { '<', '>', '&', '"' })
.Distinct()
.ToArray();
foreach (var invalidChar in invalidChars)
{
fileName = fileName.Replace(invalidChar, '-');
}
return(Path.Combine(tempFolder, fileName) + Constants.UploadTempFileExtension);
}
/// <summary>
/// On Init add popup div and ajaxfileupload control to support Add image
/// </summary>
/// <param name="e">Event Arguments</param>
protected override void OnInit(EventArgs e)
{
base.OnInit(e);
if (!DesignMode)
{
// Check if EnableSanitization is enabled and sanitizer provider is not configured.
if (EnableSanitization && sanitizerProvider == null)
{
throw new Exception("Sanitizer provider is not configured in the web.config file. If you are using the HtmlEditorExtender with a public website then please configure a Sanitizer provider. Otherwise, set the EnableSanitization property to false.");
}
HtmlGenericControl popupdiv = new HtmlGenericControl("div");
popupdiv.Attributes.Add("Id", this.ClientID + "_popupDiv");
popupdiv.Attributes.Add("style", "opacity: 0;");
popupdiv.Attributes.Add("class", "popupDiv");
ajaxFileUpload = new AjaxFileUpload();
ajaxFileUpload.ID = this.ID + "_ajaxFileUpload";
ajaxFileUpload.MaximumNumberOfFiles = 10;
ajaxFileUpload.AllowedFileTypes = "jpg,jpeg,gif,png";
ajaxFileUpload.Enabled = true;
ajaxFileUpload.OnClientUploadComplete = "ajaxClientUploadComplete";
if (ImageUploadComplete != null)
{
ajaxFileUpload.UploadComplete += ImageUploadComplete;
}
popupdiv.Controls.Add(ajaxFileUpload);
HtmlGenericControl btnCancel = new HtmlGenericControl("div");
btnCancel.Attributes.Add("Id", this.ClientID + "_btnCancel");
btnCancel.Attributes.Add("style", "float: right; position:relative; padding-left: 20px; top:10px; width: 55px; border-color:black;border-style: solid; border-width: 1px;cursor:pointer;");
btnCancel.Attributes.Add("float", "right");
btnCancel.Attributes.Add("unselectable", "on");
btnCancel.InnerText = "Cancel";
popupdiv.Controls.Add(btnCancel);
this.Controls.Add(popupdiv);
}
}
// On Init add popup div and ajaxfileupload control to support Add image
protected override void OnInit(EventArgs e) {
base.OnInit(e);
if(!DesignMode) {
// Check if EnableSanitization is enabled and sanitizer provider is not configured.
if(EnableSanitization && Sanitizer == null)
throw new Exception("The Sanitizer is not configured in the web.config file. Either install the AjaxControlToolkit.HtmlEditor.Sanitizer NuGet package or set the EnableSanitization property to False (insecure).");
var popupdiv = new HtmlGenericControl("div");
popupdiv.Attributes.Add("Id", this.ClientID + "_popupDiv");
popupdiv.Attributes.Add("style", "opacity: 0;");
popupdiv.Attributes.Add("class", "ajax__html_editor_extender_popupDiv");
ajaxFileUpload = new AjaxFileUpload();
ajaxFileUpload.ID = this.ID + "_ajaxFileUpload";
ajaxFileUpload.MaximumNumberOfFiles = 10;
ajaxFileUpload.AllowedFileTypes = "jpg,jpeg,gif,png";
ajaxFileUpload.Enabled = true;
ajaxFileUpload.OnClientUploadComplete = "ajaxClientUploadComplete";
if(ImageUploadComplete != null) {
ajaxFileUpload.UploadComplete += ImageUploadComplete;
}
popupdiv.Controls.Add(ajaxFileUpload);
var btnCancel = new HtmlGenericControl("div");
btnCancel.Attributes.Add("Id", this.ClientID + "_btnCancel");
btnCancel.Attributes.Add("style", "float: right; position:relative; padding-left: 20px; top:10px; width: 55px; border-color:black;border-style: solid; border-width: 1px;cursor:pointer;");
btnCancel.Attributes.Add("float", "right");
btnCancel.Attributes.Add("unselectable", "on");
btnCancel.InnerText = "Cancel";
popupdiv.Controls.Add(btnCancel);
this.Controls.Add(popupdiv);
}
}
public static bool ProcessStream(HttpContext context, Stream source, string fileId, string fileName, bool chunked, bool isFirstChunk, bool usePoll)
{
FileHeaderInfo headerInfo = null;
Stream destination = null;
var states = new AjaxFileUploadStates(context, fileId);
using (var tmpStream = new MemoryStream()) {
var totalBytesRead = 0;
var done = false;
var fileLength = 0;
while (true)
{
if (states.Abort)
{
return(false);
}
// read per chunk
var chunkSize = usePoll ? ChunkSizeForPolling : ChunkSize;
if (chunkSize > source.Length)
{
chunkSize = (int)source.Length;
if (usePoll)
{
states.FileLength = chunkSize;
}
}
var chunk = new byte[chunkSize];
var index = 0;
while (index < chunk.Length)
{
var bytesRead = source.Read(chunk, index, chunk.Length - index);
if (bytesRead == 0)
{
break;
}
if (usePoll)
{
states.Uploaded += bytesRead;
}
index += bytesRead;
}
totalBytesRead += index;
// Byte is not empty nor reach end of file
if (index != 0)
{
// Keep seeking header info until it's found
if (headerInfo == null)
{
// Append every first byte into temporary memory stream
tmpStream.Write(chunk, 0, index);
// Load it all into byte array, and try parse it so we can get header info
var firstBytes = tmpStream.ToArray();
// Find header info from first bytes.
headerInfo = MultipartFormDataParser.ParseHeaderInfo(firstBytes, Encoding.UTF8);
// If it's found, then start writing to file.
if (headerInfo != null)
{
// Calculate total file length.
fileLength = ((int)(source.Length - headerInfo.BoundaryDelimiterLength) - headerInfo.StartIndex);
if (usePoll)
{
states.FileLength = fileLength;
}
// Only write file data, so not all bytes are written.
var lengthToWrite = totalBytesRead - headerInfo.StartIndex;
if (lengthToWrite > fileLength)
{
lengthToWrite = fileLength;
done = true;
}
// Get first chunk of file data.
var firstChunk = new byte[lengthToWrite];
Buffer.BlockCopy(firstBytes, headerInfo.StartIndex, firstChunk, 0, lengthToWrite);
var tmpFilePath = GetTempFilePath(fileId, fileName);
AjaxFileUpload.CheckTempFilePath(tmpFilePath);
CreateTempFilePathFolder(tmpFilePath);
if (!chunked || isFirstChunk)
{
// Create new file, if this is a first chunk or file is not chunked.
destination = new FileStream(tmpFilePath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
}
else
{
// Append data to existing teporary file for next chunks
destination = new FileStream(tmpFilePath, FileMode.Append, FileAccess.Write, FileShare.ReadWrite);
}
// Writing it now.
destination.Write(firstChunk, 0, lengthToWrite);
}
}
else
{
var length = index;
// Reach in the end of stream, remove last boundary
if (destination.Length + index > fileLength)
{
length -= headerInfo.BoundaryDelimiterLength;
done = true;
}
destination.Write(chunk, 0, length);
}
}
else
{
break;
}
// There is no byte to read anymore, upload is finished.
if (done || index != chunk.Length)
{
if (destination != null)
{
destination.Close();
destination.Dispose();
}
break;
}
}
}
return(true);
}
private static string GetTempFilePath(string fileId, string fileName)
{
var tempFolder = AjaxFileUpload.GetTempFolder(fileId);
return(Path.Combine(tempFolder, fileName) + Constants.UploadTempFileExtension);
}
/// <summary>
/// Get contents of uploaded file in stream.
/// </summary>
/// <returns></returns>
public Stream GetStreamContents()
{
var dir = AjaxFileUpload.BuildTempFolder(this._fileId);
return(File.OpenRead(Path.Combine(dir, this._fileName)));
}