openstreetmap-website/app/models/ability.rb
Andy Allan 71b21ec473 Rework capabilities to avoid assumptions about missing tokens
The logic about missing tokens implying logged in users (and that
all logged in users have access to any method protected by a token
capability) is correct. However, I believe it is both confusing and
brittle, and leaves a security-related door ajar for future foot-gun
incidents.

Instead, apply Abilities as normal, and keep the Capabilities
involvement only for situations where a token is provided. This
reduces the cognitive burden when considering Abilities in isolation.
2018-10-24 12:07:00 +02:00

57 lines
2 KiB
Ruby

# frozen_string_literal: true
class Ability
include CanCan::Ability
def initialize(user)
can [:index, :permalink, :edit, :help, :fixthemap, :offline, :export, :about, :preview, :copyright, :key, :id], :site
can [:index, :rss, :show, :comments], DiaryEntry
can [:search, :search_latlon, :search_ca_postcode, :search_osm_nominatim,
:search_geonames, :search_osm_nominatim_reverse, :search_geonames_reverse], :geocoder
if user
can :welcome, :site
can [:create, :edit, :comment, :subscribe, :unsubscribe], DiaryEntry
can [:new, :create], Report
can [:read, :read_one, :update, :update_one, :delete_one], UserPreference
if user.moderator?
can [:index, :show, :resolve, :ignore, :reopen], Issue
can :create, IssueComment
end
if user.administrator?
can [:hide, :hidecomment], [DiaryEntry, DiaryComment]
can [:index, :show, :resolve, :ignore, :reopen], Issue
can :create, IssueComment
end
end
# Define abilities for the passed in user here. For example:
#
# user ||= User.new # guest user (not logged in)
# if user.admin?
# can :manage, :all
# else
# can :read, :all
# end
#
# The first argument to `can` is the action you are giving the user
# permission to do.
# If you pass :manage it will apply to every action. Other common actions
# here are :read, :create, :update and :destroy.
#
# The second argument is the resource the user can perform the action on.
# If you pass :all it will apply to every resource. Otherwise pass a Ruby
# class of the resource.
#
# The third argument is an optional hash of conditions to further filter the
# objects.
# For example, here the user can only update published articles.
#
# can :update, Article, :published => true
#
# See the wiki for details:
# https://github.com/CanCanCommunity/cancancan/wiki/Defining-Abilities
end
end