Password popup for a button

Ignition
1

I need to open a popup window inorder to ask for a password and conduct further asthmatic if authentic. What can I do?
So far I have written up to following in script

path1 = "Authenticated/Roles/Administrator"
	isAuthorized = system.perspective.isAuthorized(False, path1)
	#self.getSibling("Label").props.text=isAuthorized
	if isAuthorized== False:
	    # self.getSibling("Label").props.text="rugggu"
	    # system.perspective.openPopup("myPopupId",'Objects/popupPassword', params =  {'myParam':Enter,'myParam2':'Test'}, showCloseIcon = True, resizable = True)
	    # self.getSibling("Label_0").props.text =params
		system.perspective.login(forceAuth=True)
		self.getSibling("Label").props.text="rugggu"
		
	#else:
		#self.getSibling("Label").props.text="Success"
2

Sounds like a job for the authentication challenge:
https://docs.inductiveautomation.com/display/DOC81/system.perspective.authenticationChallenge

3 Likes
3

Since it returns nothing, How can i do a arithmetic after authentication ?

4

I've never used the authentication challenge, but I would guess you would use message handlers.

Did you notice the session event?

1 Like
5

Do this. Either pass the data you need to work with through the auth event as part of the payload, or make sure the data is in a session custom property that can be accessed via the onAuthChallengeComplete handler or a or page custom property subsequent perspective message handler that is called from the authentication event handler.

1 Like
6

I am unable to link 'onAuthChallengeCompleted'(in session) with 'system.perspective.authenticationChallenge' in button action yet. How can I do it?

7

What have you tried so far? Review the documentation on the function and the message handler. The documentation for the event handler has an example script under it.

There is no 'linking' the session event handler, whenever you make the call to system.perspective.authenticationChallenge(), the authentication challenge result is sent to the session handler.

Your button code would be something along the lines of:

payload = {
	"sourceID": "ArithmeticButton",
	"sourcePageID": self.page.props.pageId
}

system.perspective.authenticationChallenge(idp="yourIdpHere", payload=payload, framing="new")

In the onAuthenticationChallengeCompleted session event handler, your script would look like something along the lines of:

def onAuthChallengeCompleted(session, payload, result):

	logger = system.util.getLogger("ProjectNameAuthChallenger")
	
	if not payload:
		logger.warn("Authentication challenger did not provide a payload")
		return
	
	source = payload.setdefault("sourceID", None)
	sourcePage = payload.setdefault("sourcePageID", None)
	
	if not source:
		logger.warn("Authentication challenge completed with unknown source")
		return
	
	if not sourcePage:
		logger.warn("Authentication challenger did not provide a page ID")
		return
	
	if result.success:
		context = result.asSuccess.context
		user = context.user
		roles = user.roles
	
		if source == "ArithmeticButton" and "Administrator" in roles:
			system.perspective.sendMessage("PerformArithmetic", scope="page", pageId=sourcePage)
	
	return

Then on your page where the button is located, put a message handler on the root container called PerformArithmetic and in that script do whatever math you wanted to do when the user is confirmed to be authentic

3 Likes
8

This was where I stop before creating the tread.

if result.isSuccess():
		success = True
		context = result.getAsSuccess().getContext()
		user = context.user
		roles = user.roles #get embedded login details
		system.tag.writeBlocking('[default]Testmvps/Atest',user['userName']) #verify details
		
		payload1 = {"fromsesstion_roles":roles}
		system.perspective.sendMessage("fromSession", payload=payload1) #send roles in message

But I dont recall any message in the handler
handler code

rolefromsession =payload["fromsesstion_roles"]
	self.getSibling("display").props.text =rolefromsession

In your code, why 'logger', 'source', 'sourcePage' are called?

9

Not sure what you are asking here, are you asking why I use these or why they are used in if statements?

If the latter: The code I provided is the base framework code I use with auth challenges in my projects, adjusted to try to fit your use case. The first part is checking two things when receiving the results of a auth challenge:

A) Checking that a payload was actually passed to the challenge (if you try to pull a value from the payload when no payload was passed, you'll get an error)

B) Checking that the payload contains the necessary keys with useable values.

I normally have several things calling auth challenges that all need their own thing to happen, whether that is a certain function call or a specific message handler.

I use source/sourceID as a way to identify what called the challenge and allow the system to figure out what needs to be done after the challenge is completed. sourcePage/sourcePageID is used in the call to system.perspective.sendMessage() so it knows what page to target when sending the message.

If the auth challenge is called but the identifying data isn't passed or isn't present, then the system won't be able to determine what to do after authenticating the user. Therefore, I check the data exists before attempting to do any further logic with it.

Also, in the auth challenge handler, you may want to add something to call a popup that alerts any unallowed user, or user that fails to authenticate, that they are not allowed to perform the requested action. This will prevent false assumptions that the code/interface isn't working when actually the user doesn't have the required roles/permissions or isn't included in the IDP you are authenticating against.