How to validate the transition by the number of attachments on Customer Portal request?

Toolstrek, LLC

Hi, 

I'm trying to validate the number of attachments in a transition. You can get temporary attachments through form token or id temporary attachment. I am trying to access temporary attachments via form token, because I haven't found a way to get ids temporary attachments. As a result, validation only works for Jira. If you make the transition through plugin Actions for JIRA Service Desk from Customer Portal - validation fails, because form token is null and I can't get access to temporary attachments. 

How do I solve the attachment validation problem by number on Customer Poral page? How can I get form token?

import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.issue.IssueFieldConstants
import com.atlassian.jira.issue.attachment.TemporaryWebAttachment
import com.atlassian.jira.issue.attachment.TemporaryWebAttachmentManager
import webwork.action.ActionContext
import com.opensymphony.workflow.InvalidInputException
import org.slf4j.LoggerFactory
import org.slf4j.Logger

Logger log = LoggerFactory.getLogger(this.getClass())

def temporaryAttachmentUtil = ComponentAccessor.getComponent(TemporaryWebAttachmentManager)

def formToken = ActionContext.getRequest()?.getParameter(IssueFieldConstants.FORM_TOKEN)

if (formToken) {

    def tempWebAttachments = temporaryAttachmentUtil.getTemporaryWebAttachmentsByFormToken(formToken)

    int attachmentsSize = tempWebAttachments.size()

    log.warn('size {}', attachmentsSize)

    if (attachmentsSize > 1) {
        throw new InvalidInputException(IssueFieldConstants.ATTACHMENT, "You can't attach more than 1 document")
    }

    return true
} else {
  log.warn('form token is null')
}

 Sources:

• TemporaryWebAttachmentManager 
• TemporaryWebAttachment 
• IssueFieldConstants 
• Actions for Jira Service Management 

Cheers, Bogdan

Bogdan Kozhukhov

Hi, @Toolstrek, LLC 

You need to use custom REST Edpoint (Scriptrunner):

1. Create custom REST Endpoint

For example, this code will allow the transition if the number of attachments is greater than 1:

import com.onresolve.scriptrunner.runner.rest.common.CustomEndpointDelegate
import groovy.json.JsonBuilder
import groovy.transform.BaseScript
import org.codehaus.jackson.map.ObjectMapper

import javax.ws.rs.core.MultivaluedMap
import javax.ws.rs.core.Response

@BaseScript CustomEndpointDelegate delegate

validate(httpMethod: "POST") { MultivaluedMap queryParams, String body ->
    def mapper = new ObjectMapper()
    def tree = mapper.readTree(body)
    def fieldValue = tree.get("Attachment")
    if(fieldValue != null ) {
        def attachmentDetails = fieldValue.collect(){ it.getFieldNames() }
            if(attachmentDetails.size() > 1){
             return Response.ok().build()
            }
    }
    return Response.status(400).entity("Less than one attachment ").build()
}

You are required to create a REST Endpoint in the script runner, as shown in the screenshot below:

2. After the REST Endpoint is created, you will use the link mentioned in the documentation and configure it accordingly, as shown in the screenshot below:



Cheers, Bogdan!