topic Re: How to get noderef of file during file creation in share in Alfresco Forum

How to get noderef of file during file creation in share

hardik_thakkar — Mon, 23 Nov 2020 06:43:57 GMT

Hi Team,

I have requirement to restrict from creation of exe file.

User is creating plain text file from share UI and entering name like test.exe.

I have created rule that checks if file name ends with exe, it throws exception. But rule is not executing somehow.

Then i have created behaviour that executes on node creation, I am getting parentref using below code.

public void init() {
		policyComponent.bindClassBehaviour(NodeServicePolicies.BeforeCreateNodePolicy.QNAME,
				ContentModel.TYPE_CONTENT,
				new JavaBehaviour(this, "beforeCreateNode", Behaviour.NotificationFrequency.EVERY_EVENT));
	}
	
	@Override
	public void beforeCreateNode(NodeRef parentRef, QName assocTypeQName, QName assocQName, QName nodeTypeQName) {
		if (LOGGER.isDebugEnabled()) {
			LOGGER.debug("Started executing FileCreationRestrictionBehaviour ..");
			
			LOGGER.debug("parentref --> "+parentRef);
			
			LOGGER.debug("parentref NAME --> "+nodeService.getProperty(parentRef, ContentModel.PROP_NAME));
			
			System.out.println("parentref --> "+parentRef + 
					"parentref NAME --> "+nodeService.getProperty(parentRef, ContentModel.PROP_NAME));
			
			
		}
		
	}

So,my requirement is to restrict file creation, if users enters .exe in file name, how can i get the noderef/filename of that file, so, i can throw exception.

Thanks,
Hardik

Re: How to get noderef of file during file creation in share

abhinavmishra14 — Mon, 23 Nov 2020 20:51:42 GMT

Try : org.alfresco.repo.node.NodeServicePolicies.OnCreateNodePolicy

You can do something like this:

public void onCreateNode(final ChildAssociationRef childAssocRef) {
	final NodeRef nodeRef = childAssocRef.getChildRef();//node which is being created.
	if (nodeService.exists(nodeRef)) {
		final String fileName = (String) nodeService.getProperty(nodeRef, ContentModel.PROP_NAME);
		final String mimetype = mimetypeService.guessMimetype(fileName); //find mimetype by extension of the file.
		if (restrictedMimeList.contains(mimetype)) {// check whether the result is one of the restricted mime types from the list?
			throw new AlfrescoRuntimeException("Mimetype " + mimetype + " is unsupported");
		}
	}
}

Re: How to get noderef of file during file creation in share

abhinavmishra14 — Wed, 25 Nov 2020 15:41:22 GMT

@hardik_thakkar you can also try this add-on which covers several other scenarios while blocking blacklisted mimetypes.

https://github.com/abhinavmishra14/alfresco-mimetype-blocker/releases

originally forked from https://github.com/keensoft/alfresco-mimetype-blocker

Hi Re: How to get noderef of file during file creation in share

hardik_thakkar — Fri, 27 Nov 2020 11:32:50 GMT

Hi @abhinavmishra14

I have configured that add-on and that works perfectly during file upload part.

Written behaviour for file creation part as per your suggestion and that's working fine.

Thanks,

Hardik

Re: Hi Re: How to get noderef of file during file creation in share

abhinavmishra14 — Fri, 27 Nov 2020 14:55:48 GMT

Good to hear that everything works fine for you. Good luck @hardik_thakkar