public static FileFilteringServiceInvokerRequest CreateInstance(string fileName, Stream fileStream, int textScanLimit, string organizationId)
{
ArgumentValidator.ThrowIfNullOrEmpty("fileName", fileName);
ArgumentValidator.ThrowIfInvalidValue <Stream>("fileStream", fileStream, (Stream stream) => stream != null || stream.Length > 0L);
ArgumentValidator.ThrowIfNullOrEmpty("organizationId", organizationId);
TimeSpan scanTimeout = FileFilteringServiceInvokerRequest.GetScanTimeout(fileStream);
ContentManager contentManager = new ContentManager(Path.GetTempPath());
FileFipsDataStreamFilteringRequest fileFipsDataStreamFilteringRequest = FileFipsDataStreamFilteringRequest.CreateInstance(fileName, fileStream, contentManager);
return(new FileFilteringServiceInvokerRequest(organizationId, scanTimeout, textScanLimit, fileFipsDataStreamFilteringRequest));
}
protected override void InternalValidate()
{
TaskLogger.LogEnter();
if (this.FileData == null || !this.FileData.Any <byte>())
{
throw new ErrorFileIsTooSmallForFingerprintException();
}
if (this.FileData.Length > 15728640)
{
throw new ErrorFileIsTooLargeForFingerprintException(this.FileData.Length, 15728640);
}
int textScanLimit = this.GetTextScanLimit();
try
{
using (MemoryStream memoryStream = new MemoryStream(this.FileData))
{
string fileName = "Default";
using (FileFilteringServiceInvokerRequest fileFilteringServiceInvokerRequest = FileFilteringServiceInvokerRequest.CreateInstance(fileName, memoryStream, textScanLimit, base.CurrentOrgContainerId.ObjectGuid.ToString()))
{
base.WriteVerbose(Strings.VerboseBeginTextExtraction(this.FileData.Length, textScanLimit));
FilteringResults unifiedContentResults = UnifiedContentServiceInvoker.GetUnifiedContentResults(fileFilteringServiceInvokerRequest);
base.WriteVerbose(Strings.VerboseEndTextExtraction(unifiedContentResults.Streams.Count));
List <StreamIdentity> list = (from streamId in unifiedContentResults.Streams
where NewFingerprint.IsTextAvailableStream(streamId)
select streamId).ToList <StreamIdentity>();
string streamNames = string.Join(";", from streamId in list
select string.Format("{0}: {1}", streamId.Name, string.Join <StreamType>(",", streamId.Types ?? new StreamType[0])));
base.WriteVerbose(Strings.VerboseExtractedTextStreams(list.Count, streamNames));
StreamIdentity streamIdentity = unifiedContentResults.Streams.FirstOrDefault((StreamIdentity streamId) => streamId.ParentId == 0);
if (!NewFingerprint.IsSupportedFileType(streamIdentity))
{
throw new ErrorFileTypeIsUnsupportedException();
}
StreamIdentity streamIdentity2 = null;
if (NewFingerprint.IsTextAvailableStream(streamIdentity))
{
streamIdentity2 = streamIdentity;
}
else if (list.Count > 0)
{
streamIdentity2 = list[0];
}
if (streamIdentity2 == null)
{
throw new ErrorFileHasNoTextContentException();
}
if (RuleAgentResultUtils.HasExceededProcessingLimit(streamIdentity2))
{
throw new ErrorExceededTextScanLimitException(textScanLimit);
}
if (list.Count > 1 && (streamIdentity.Types == null || streamIdentity.Types.Length != 1 || streamIdentity.Types[0] != 3))
{
this.WriteWarning(Strings.WarningMultipleStreamForFingerprint(list.Count, streamIdentity2.Name));
}
this.extractedText = streamIdentity2.Content.TextReader.ReadToEnd();
base.WriteVerbose(Strings.VerboseSelectedTextStream(this.extractedText.Length, this.extractedText));
}
}
}
catch (FilteringServiceFailureException innerException)
{
throw new ErrorFailedExtractTextForFingerprintException(innerException);
}
TaskLogger.LogExit();
}