Add switch for validate_ae_title in C-MOVE request

[Grandmother]

Is your feature request related to a problem? Please describe.

I've met a custom DICOM server that allows me to send receiver AE title in C-MOVE request in format "ae_title@IP:port" where ae_title is regular title and IP and port is an address of receiver. It allows them to process C-MOVE requests without maintaining a table of AEs and their addresses.

Of course such AE title is longer than 16 bytes allowed by DICOM standard and I can't use this library without patching.

Describe the solution you'd like

I've already made a simplest patch that allows me to switch off the AE title length check in C-MOVE request. Now I'd like to merge it into the main repo to not to maintain a fork.

Now it works only for C-MOVE request so I probably need to make it more general.

Describe alternatives you've considered

Now I have to fork the project and maintain it.
I also considered monkey patching but it seems too weird.

Additional context

I understand that it's just a non-standard DICOM server and in general project doesn't have to support such things. That's why I ask you to add switch that will just allow users that have such problem to switch off this particular check.

[scaramallion]

For something so straight-forward I guess I could add a config option. It's just the length requirement that's the problem?

[Grandmother]

Thank you for quick response.

Yes, the problem is in length requirement, but only in C-MOVE request.

[scaramallion]

Changes made in master, do you mind testing?

from pynetdicom import _config

_config.ALLOW_LONG_DIMSE_AET = True

# rest of your code...

[Grandmother]

Thank you! Code looks very good for me.

I'll check how it works only on Monday and will write you results then.

[Grandmother]

Works like charm. Thank you!