Redmine

Hello,

I am currently working on a plugin to encrypt notification emails. Every user is supposed to have a public GPG key and outgoing notification emails are encrypted with the according key.

I started with adding a new field in the web configuration so every user can input his public GPG key.

Then, I did some research and found out a good way to modify notification emails by patching the deliver_mail method in app/models/mailer.rb. My patch so far looks like this:

module MailerPatch
  def self.included(base) # :nodoc:
    base.send(:extend, ClassMethods)
    base.class_eval do
      unloadable # Send unloadable so it will not be unloaded in development
    end
  end

  module ClassMethods
    def deliver_mail(mail)
      return false if mail.to.blank? && mail.cc.blank? && mail.bcc.blank?
      mail.subject="New Subject" 
      super
    end
  end
end

What this does is changing the subject of all out-going notification emails to "New Subject".

What I actually want to do is encrypt mail.body with the GPG key belonging to mail.to

My question is: How do I access user information within this function? I need to find the key belonging to a specific email address. I could access directly the database but that appears cumbersome. I would prefer to use functions within redmine to do that but I am not familiar enough with Redmine or Ruby for that matter.

Please help.