public void InvokeTaskManager() { if (!AppSettings.GetConfiguredValue <bool>("TranscodingServiceEnabled", false)) { this.HandleFault(LocalizedStrings.GetNonEncoded(500694802)); return; } AttachmentPolicy attachmentPolicy = this.owaContext.UserContext.AttachmentPolicy; using (Stream stream = this.LoadDocument(true, out this.decryptionStatus)) { if (this.decryptionStatus.Failed) { SanitizedHtmlString irmErrorDetails = WebReadyViewUtilities.GetIrmErrorDetails(this.owaContext.UserContext, this.decryptionStatus); this.HandleFault(irmErrorDetails.ToString()); } else if (!attachmentPolicy.WebReadyDocumentViewingEnable) { this.HandleFault(LocalizedStrings.GetNonEncoded(500694802)); } else if (!AttachmentUtility.IsWebReadyDocument(this.fileExtension, this.mimeType)) { this.HandleFault(LocalizedStrings.GetNonEncoded(-1584334964)); } else { try { byte[] bytes = Encoding.Default.GetBytes(this.documentIdStringBuilder.ToString()); byte[] value = null; using (MessageDigestForNonCryptographicPurposes messageDigestForNonCryptographicPurposes = new MessageDigestForNonCryptographicPurposes()) { value = messageDigestForNonCryptographicPurposes.ComputeHash(bytes); } WebReadyViewUtilities.InitializeTranscodingService(); Utilities.MakePageNoCacheNoStore(this.owaContext.HttpContext.Response); string sourceDocType = string.IsNullOrEmpty(this.fileExtension) ? this.mimeType : this.fileExtension.TrimStart(new char[] { '.' }); try { TranscodingTaskManager.Transcode(BitConverter.ToString(value), this.owaContext.UserContext.Key.UserContextId, stream, sourceDocType, this.currentPageNumber, out this.totalPageNumber, this.owaContext.HttpContext.Response); } catch (TranscodingCrashException innerException) { OwaDiagnostics.LogEvent(ClientsEventLogConstants.Tuple_TranscodingWorkerProcessFails, string.Empty, new object[] { this.owaContext.LogonIdentity.GetLogonName(), this.owaContext.LogonIdentity.UserSid.Value, this.messageFrom, this.messageSubject, this.messageId, this.documentPath, this.documentIdStringBuilder.ToString() }); throw new TranscodingUnconvertibleFileException("Transcoding service crash when converting the document.", innerException, this); } if (this.currentPageNumber == 0) { this.currentPageNumber = this.totalPageNumber; } } catch (TranscodingException ex) { ExTraceGlobals.TranscodingTracer.TraceDebug <Type, string>(0L, "Exception: Type: {0} Error: {1}.", ex.GetType(), ex.Message); ErrorInformation exceptionHandlingInformation = Utilities.GetExceptionHandlingInformation(ex, this.owaContext.MailboxIdentity); this.HandleFault(exceptionHandlingInformation.Message); } } } }