public override string GetKnownRequestHeader(int index)
{
if (index == HttpWorkerRequest.HeaderContentLength)
{
ParseMultipart();
return(preloadedEntityBody.Length.ToString());
}
return(OrigWorker.GetKnownRequestHeader(index));
}
private bool ParseOrThrow()
{
origPreloadedBody = OrigWorker.GetPreloadedEntityBody();
string contentTypeHeader = OrigWorker.GetKnownRequestHeader(HttpWorkerRequest.HeaderContentType);
string contentLengthHeader = OrigWorker.GetKnownRequestHeader(HttpWorkerRequest.HeaderContentLength);
string transferEncodingHeader = OrigWorker.GetKnownRequestHeader(HttpWorkerRequest.HeaderTransferEncoding);
if (contentLengthHeader != null)
{
origContentLength = Int64.Parse(contentLengthHeader);
}
if (Config.Current.DebugDirectory != null)
{
string logEntityBodyBaseName = Path.Combine(Config.Current.DebugDirectory.FullName,
DateTime.Now.Ticks.ToString());
LogEntityBodyStream = File.Create(logEntityBodyBaseName + ".body");
LogEntityBodySizesStream = File.CreateText(logEntityBodyBaseName + ".sizes");
LogEntityBodySizesStream.WriteLine(contentTypeHeader);
LogEntityBodySizesStream.WriteLine(contentLengthHeader);
if (origPreloadedBody != null)
{
LogEntityBodyStream.Write(origPreloadedBody, 0, origPreloadedBody.Length);
LogEntityBodySizesStream.WriteLine(origPreloadedBody.Length);
}
else
{
LogEntityBodySizesStream.WriteLine(0);
}
}
FieldNameTranslator translator = new FieldNameTranslator();
if (MultiRequestControlID == null && UploadState != null)
{
UploadState.BytesTotal += origContentLength;
}
if (log.IsDebugEnabled)
{
log.Debug("=" + contentLengthHeader + " -> " + origContentLength);
}
boundary = System.Text.Encoding.ASCII.GetBytes("--" + GetAttribute(contentTypeHeader, "boundary"));
if (log.IsDebugEnabled)
{
log.Debug("boundary=" + System.Text.Encoding.ASCII.GetString(boundary));
}
string charset = GetAttribute(contentTypeHeader, "charset");
if (charset != null)
{
try
{
System.Text.Encoding encoding = System.Text.Encoding.GetEncoding(charset);
ContentEncoding = encoding;
}
catch (NotSupportedException)
{
if (log.IsDebugEnabled)
{
log.Debug("Ignoring unsupported charset " + charset + ". Using utf-8.");
}
}
}
else
{
ContentEncoding = HttpContext.Current.Response.ContentEncoding;
}
preloadedEntityBodyStream = new MemoryStream();
Hashtable storageConfigStreamTable = new Hashtable();
Stream postBackIDStream = null;
outputStream = preloadedEntityBodyStream;
readPos = writePos = parsePos = 0;
while (CopyUntilBoundary())
{
// If we were writing to a file, close it
if (outputStream == fileStream && outputStream != null)
{
UploadState.Files.Add(controlID, uploadedFile);
outputStream.Close();
}
// If we were receiving the value generated by the HiddenPostBackID control, set the postback ID.
if (postBackIDStream != null)
{
postBackIDStream.Seek(0, System.IO.SeekOrigin.Begin);
StreamReader sr = new System.IO.StreamReader(postBackIDStream);
translator.PostBackID = sr.ReadToEnd();
postBackIDStream = null;
}
// parse the headers
string name = null, fileName = null, contentType = null;
if (boundary[0] != (byte)'\r')
{
byte[] newBoundary = new byte[boundary.Length + 2];
Buffer.BlockCopy(boundary, 0, newBoundary, 2, boundary.Length);
newBoundary[0] = (byte)'\r';
newBoundary[1] = (byte)'\n';
boundary = newBoundary;
}
else
{
GetLine(); // Blank line
}
GetLine(); // boundary line
string header;
while (null != (header = GetLine()))
{
if (log.IsDebugEnabled)
{
log.Debug("header=" + header);
}
int colonPos = header.IndexOf(':');
if (colonPos < 0)
{
break;
}
string headerName = header.Substring(0, colonPos);
if (String.Compare(headerName, "Content-Disposition", true) == 0)
{
name = GetAttribute(header, "name");
fileName = GetAttribute(header, "filename");
}
else if (String.Compare(headerName, "Content-Type", true) == 0)
{
contentType = header.Substring(colonPos + 1).Trim();
}
}
if (log.IsDebugEnabled)
{
log.Debug("name = " + name);
}
if (log.IsDebugEnabled)
{
log.Debug("fileName = " + fileName);
}
if (log.IsDebugEnabled)
{
log.DebugFormat("name = " + name);
}
if (log.IsDebugEnabled)
{
log.DebugFormat("fileName = " + fileName);
}
controlID = null;
if (name == Config.Current.PostBackIDQueryParam && postBackIDStream == null)
{
postBackIDStream = outputStream = new System.IO.MemoryStream();
readPos = parsePos; // Skip past the boundary and headers
}
else if (name != null &&
null != (controlID = translator.ConfigFieldNameToControlID(name)))
{
storageConfigStreamTable[controlID] = outputStream = new System.IO.MemoryStream();
readPos = parsePos; // Skip past the boundary and headers
}
else if (name != null &&
null != (controlID = translator.FileFieldNameToControlID(name)))
{
if (log.IsDebugEnabled)
{
log.DebugFormat("name != null && controlID != null");
}
if (UploadState == null)
{
UploadState = UploadStateStore.OpenReadWriteOrCreate(translator.FileFieldNameToPostBackID(name));
if (transferEncodingHeader != "chunked")
{
UploadState.Status = UploadStatus.NormalInProgress;
}
else
{
UploadState.Status = UploadStatus.ChunkedInProgress;
}
UploadState.BytesTotal += origContentLength;
UploadState.BytesRead += grandTotalBytesRead;
}
UploadStorageConfig storageConfig = null;
if (UploadState.MultiRequestObject != null)
{
string secureStorageConfigString = UploadState.MultiRequestObject as string;
if (secureStorageConfigString != null)
{
storageConfig = UploadStorage.CreateUploadStorageConfig();
storageConfig.Unprotect(secureStorageConfigString);
if (log.IsDebugEnabled)
{
log.DebugFormat("storageConfig[tempDirectory]={0}", storageConfig["tempDirectory"]);
}
}
}
string configID = translator.FileIDToConfigID(controlID);
MemoryStream storageConfigStream = storageConfigStreamTable[configID] as MemoryStream;
if (storageConfigStream != null)
{
storageConfigStream.Seek(0, System.IO.SeekOrigin.Begin);
StreamReader sr = new System.IO.StreamReader(storageConfigStream);
string secureStorageConfigString = sr.ReadToEnd();
if (log.IsDebugEnabled)
{
log.Debug("storageConfigStream = " + secureStorageConfigString);
}
storageConfig = UploadStorage.CreateUploadStorageConfig();
storageConfig.Unprotect(secureStorageConfigString);
// Write out a part for the config hidden field
if (log.IsDebugEnabled)
{
log.DebugFormat("Calling WriteReplacementFormField({0}, {1})", configID, secureStorageConfigString);
}
WriteReplacementFormField(configID, secureStorageConfigString);
// Remove the stream from the table, so we don't write the replacement field again.
storageConfigStreamTable.Remove(configID);
}
if (fileName != null)
{
if (log.IsDebugEnabled)
{
log.DebugFormat("filename != null");
}
if (log.IsDebugEnabled)
{
log.Debug("Calling UploadContext.Current.CreateUploadedFile(" + controlID + "...)");
}
UploadContext tempUploadContext = new UploadContext();
tempUploadContext._ContentLength = origContentLength;
uploadedFile
= UploadStorage.CreateUploadedFile(tempUploadContext, controlID, fileName, contentType, storageConfig);
if (MultiRequestControlID == null)
{
UploadStorage.DisposeAtEndOfRequest(uploadedFile);
}
outputStream = fileStream = uploadedFile.CreateStream();
UploadState.CurrentFileName = uploadedFile.FileName;
readPos = parsePos; // Skip past the boundary and headers
// If the client-specified content length is too large, we set the status to
// RejectedRequestTooLarge so that progress displays will stop. We do this after
// having created the UploadedFile because that is necessary for the progress display
// to find the uploadContext.
if (origContentLength > UploadHttpModule.MaxRequestLength)
{
if (log.IsDebugEnabled)
{
log.Debug("contentLength > MaxRequestLength");
}
throw new UploadTooLargeException(UploadHttpModule.MaxRequestLength, origContentLength);
}
// Write out a replacement part that just contains the filename as the value.
WriteReplacementFormField(controlID, fileName);
}
else
{
if (log.IsDebugEnabled)
{
log.DebugFormat("filename == null");
}
// Since filename==null this must just be a hidden field with a name that
// looks like a file field. It is just an indication that when this request
// ends, the associated uploaded files should be disposed.
if (MultiRequestControlID == null)
{
if (log.IsDebugEnabled)
{
log.DebugFormat("MultiRequestControlID == null");
}
RegisterFilesForDisposal(controlID);
}
outputStream = preloadedEntityBodyStream;
}
}
else
{
outputStream = preloadedEntityBodyStream;
}
}
if (log.IsDebugEnabled)
{
log.Debug("Done parsing.");
}
outputStream.WriteByte(10);
outputStream.Close();
preloadedEntityBody = preloadedEntityBodyStream.ToArray();
preloadedEntityBodyStream = null;
if (grandTotalBytesRead < origContentLength)
{
return(false);
}
return(true);
}
