Make ID Parameter configurable

[er4z0r]

As a red teamer I am running a modified version of Gophish where I removed some the indicators that will give gophish away either by leaking information in the e-mails or the webserver responses. One of these modifications was to rename the rid parameter to something more common like utmid. I did this in models/campaign.go in the gophish source.

// RecipientParameter is the URL parameter that points to the result ID for a recipient.
const RecipientParameter = "utmid"

One consequence of this however was that the parameter does not show up as id but as utmid as part of the webhook payload:

DEBU[0032] {"campaign_id":103,"email":"[email protected]","time":"2024-04-09T20:19:40.927020587Z","message":"Clicked Link","details":"{\"payload\":{\"utmid\":[\"u06rVPK\"]},...

Since gophish-notifier expected the name to be id it did not pick up the field in the payload, which then makes it harder to search for the result in Gophish (especially in bigger campaigns).

I realize that this is totally on me. OTOH, I might not be the only one customizing this aspect of Gophish so it might be useful to make the name of this field configurable in gophish-notifier.