File access error from dotnet assembly

ottobe

Hi
I am using PDFsharp library to merge some PDF's.
Preliminary with server and client on my Win7 development machine.
But when trying to read or write to files a get this error on the PdfReader.Open statement, indicating PDFsharp is not allowed to do file access.
Any suggestion on how to set permissions will be appreciated.

InputFileName := FileManager.ServerTempFileName('pdf');
TempBLOB.Blob := Attachments."Embedded File";
FileManager.BLOBExportToServerFile(TempBLOB, InputFileName);
InputDocument:= PdfReader.Open(InputFileName, PdfDocumentOpenMode.Import);

FOR Count := 0 TO InputDocument.Pages.Count - 1 DO
BEGIN
Page := InputDocument.Pages.Item(Count);
OutputDocument.AddPage(Page);
END;

Error:
System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

Wisa123

Hello,

Keep in mind that with RunOnClient = false the Service user performs the action, and therefore has to be permitted to do so.
Also make sure to not mess up local and server paths.

Regards, /wisa

sundfar

Did you find a solution to your problem, Ottobe?

Remco_Reinking

Having the same problem, when calling a function in a webservice that is using dotnet to access files on the server. Anybody a clue how to solve this? Is there a function or property telling the system that it is okay for the add-in to access the local file system?

Remco_Reinking

Looks like it is being solved by unlocking the DLL in the Add-In folder.

lubost

- sure that you done Attachments.CALCFIELDS("Embedded File");
- sure that temporary file really exists and have nonzero length.

Dolsha

Remco_Reinking wrote: »

Looks like it is being solved by unlocking the DLL in the Add-In folder.

How i can unlock DLL?

Remco_Reinking

see https://www.limilabs.com/blog/unblock-dll-file