Attachment mediatypes (DWG)

Hello,

I am trying to validate the mediatypes allowed in my form. The client wants
to validate some types of files, but I have not found a way to validate the
files with the .dwg extension. Do you know what would be the exact
nomenclature to do it?

I use the following property to validate the mediatypes of allowed files:

*<property
        as="xs:string"  
        name="oxf.fr.detail.attachment.mediatypes.*.*"                    
        value="application/pdf
                application/msword
                application/vnd.openxmlformats-officedocument.wordprocessingml.document  
                application/vnd.oasis.opendocument.text
                image/jpeg
                application/vnd.ms-excel
                application/vnd.openxmlformats-officedocument.spreadsheetml.sheet  
                application/vnd.oasis.opendocument.spreadsheet"/>*

Thanks,
Iñigo.

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Hi Iñigo,

The mediatype stored by the file attachment control is the one sent by the
browser. I.e. there is no sniffing of the mediatype done by Orbeon Forms on
the server-side based on the file content. So you can just try attaching
such a file, and see what media type you end up with. You'll let me know if
this works, or if I misunderstood your question.

‑Alex

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Hi Alex,

We have made a test with different browsers (Chrome, Firefox, Opera). We
have used a calculated value field to show the mediatype, with the formula
you see in the attached image (capture1.JPG).
<http://discuss.orbeon.com/file/t375647/capture1.jpg>

In all tests we see that the browser sends as mediatype:
'application/octet-stream', as you can see in the attached image
(capture2.JPG). <http://discuss.orbeon.com/file/t375647/capture2.jpg>

The problem we have is the following: if we put this mediatype in the
property (capture3.JPG)
<http://discuss.orbeon.com/file/t375647/capture3.jpg> , allows to attach and
upload files without extension, and this can not be possible, all the
attached files must have an extension.
In addition, it allows to attach and upload files with rare extensions (
f.e.;'.dxt'and'.dst'). This can not happen either.

What can we do, it could be possible adding our own JS, using a simpleType
of an schema XML or another way?

Thank you very much.

Iñigo.

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Hi again,

Following the same theme, we are trying to control the length of the file
name adding this formula in the attachment control.
<http://discuss.orbeon.com/file/t375647/formula.jpg>

I attached an image with two examples with the uploading of the file and the
error message of the validation of the length of the file name.
<http://discuss.orbeon.com/file/t375647/filesAttachedwithError.jpg>

'Subida de archivos completada' is the same as 'Upload complete'.

The validation error appears and does not allow you to go to the revision
page, but the file keeps uploading... There is some way to stop the upload
of the file when the validation error appears?

Thanks,
Iñigo.




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Hi Iñigo,

To only allow certain file extensions, add a new validation that checks that
`@filename` has the proper extension, just like you did to impose a
constraint on the filename length.

And you can only performs those checks after the file has been uploaded. You
can perform checks as the file uploads only through the File scan API (see
link below), which is a PE-only feature. This is a more low-level feature,
typically used to scan files for viruses, as in case you find a virus you'd
like to stop the upload as soon as possible, but the same API can be used to
perform other checks.

https://doc.orbeon.com/form-runner/api/other-apis/file-scan-api

‑Alex

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