XMLDocument and popup windows

[Jacek Laskowski 57]

I need to validate an XML file that has references to XSD files, I use TXMLDocument for that. But during this validation, which is done in a thread, the MSXML bni library displays me a window asking for permission, it looks like this:

 

 

The message in english is: "This page is accessing information that is not under its control. This poses a security risk. Do you want to continue?"

 

Is it possible to confirm this question from the code level or disable the message?

And I know it is hidden in the internet options of the system, but I do not have access to clients' computers and I have to bypass it in the code.

[FPiette 393]

You should post the code you use to validate the XML document. Build a minimal program which reproduce the error you get.

 

 

[Jacek Laskowski 57]

Code:

var
  lXML: IXMLDocument;
begin
  lXML := TXMLDocument.Create(nil);
  lXML.ParseOptions := [poResolveExternals, poValidateOnParse];
  lXML.LoadFromFile('test_.xml');

and test file for load:

<?xml version="1.0" encoding="UTF-8"?>
<tns:JPK xmlns:tns="http://jpk.mf.gov.pl/wzor/2017/11/13/1113/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:etd="http://crd.gov.pl/xml/schematy/dziedzinowe/mf/2016/01/25/eD/DefinicjeTypy/" xsi:schemaLocation="http://jpk.mf.gov.pl/wzor/2017/11/13/1113/ http://www.mf.gov.pl/documents/764034/6145258/Schemat_JPK_VAT%283%29_v1-1.xsd">
  <tns:Naglowek>
    <tns:KodFormularza kodSystemowy="JPK_VAT (3)" wersjaSchemy="1-1">JPK_VAT</tns:KodFormularza>
    <tns:WariantFormularza>3</tns:WariantFormularza>
    <tns:CelZlozenia>0</tns:CelZlozenia>
    <tns:DataWytworzeniaJPK>2020-07-23T12:49:30.000Z</tns:DataWytworzeniaJPK>
    <tns:DataOd>2020-06-01</tns:DataOd>
    <tns:DataDo>2020-06-30</tns:DataDo>
    <tns:NazwaSystemu>test</tns:NazwaSystemu>
  </tns:Naglowek>
</tns:JPK>

 

[FPiette 393]

Using your code with Delphi 10.4.1 and your test file, I cannot reproduce the issue!

Maybe something else in your application? Try with a simple project with only one button and your code in the OnClick event.

 

[Jacek Laskowski 57]

The reason is in the internet settings:

 

https://kb.froglogic.com/squish/web/troubleshoot/page-accessing-information-not-under-its-control/

 

When I change "Access data sources across domains" to Enable problem disappear.

 

But how to change this or prevent from code level?

[FPiette 393]

This is governed by a registry key:

https://support.microsoft.com/en-us/help/182569/internet-explorer-security-zones-registry-entries-for-advanced-users

It is likely that your program need elevated privileges to change that.

 

[Der schöne Günther 336]

It appears you can use a custom security manager for xml instead of messing with global user preferences.

 

Building a Custom Internet Security Manager | Microsoft Docs

[Remy Lebeau 1636]

Have you considered simply changing the TXMLDocument to use a different DOMVendor than MSXML?