83 lines
2.7 KiB
Ruby
83 lines
2.7 KiB
Ruby
class UserRolesController < ApplicationController
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layout 'site'
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before_filter :authorize_web
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before_filter :require_user
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before_filter :lookup_this_user
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before_filter :require_administrator
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before_filter :require_valid_role
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before_filter :not_in_role, :only => [:grant]
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before_filter :in_role, :only => [:revoke]
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around_filter :setup_nonce
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def grant
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@this_user.roles.create(:role => @role, :granter_id => @user.id)
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redirect_to :controller => 'user', :action => 'view', :display_name => @this_user.display_name
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end
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def revoke
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UserRole.delete_all({:user_id => @this_user.id, :role => @role})
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redirect_to :controller => 'user', :action => 'view', :display_name => @this_user.display_name
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end
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private
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def require_administrator
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unless @user.administrator?
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flash[:notice] = t'user_role.filter.not_an_administrator'
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redirect_to :controller => 'user', :action => 'view', :display_name => @this_user.display_name
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end
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end
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##
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# ensure that there is a "this_user" instance variable
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def lookup_this_user
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@this_user = User.find_by_display_name(params[:display_name])
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rescue ActiveRecord::RecordNotFound
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redirect_to :controller => 'user', :action => 'view', :display_name => params[:display_name] unless @this_user
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end
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##
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# the random nonce here which isn't predictable, making an CSRF
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# procedure much, much more difficult. setup the nonce. if the given
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# nonce matches the session nonce then yield into the actual method.
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# otherwise, just sets up the nonce for the form.
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def setup_nonce
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if params[:nonce] and params[:nonce] == session[:nonce]
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@nonce = params[:nonce]
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yield
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else
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@nonce = OAuth::Helper.generate_nonce
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session[:nonce] = @nonce
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render
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end
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end
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##
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# require that the given role is valid. the role is a URL
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# parameter, so should always be present.
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def require_valid_role
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@role = params[:role]
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unless UserRole::ALL_ROLES.include?(@role)
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flash[:notice] = t('user_role.filter.not_a_role', :role => @role)
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redirect_to :controller => 'user', :action => 'view', :display_name => @this_user.display_name
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end
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end
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##
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# checks that the user doesn't already have this role
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def not_in_role
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if @this_user.has_role? @role
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flash[:notice] = t('user_role.filter.already_has_role', :role => @role)
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redirect_to :controller => 'user', :action => 'view', :display_name => @this_user.display_name
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end
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end
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##
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# checks that the user already has this role
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def in_role
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unless @this_user.has_role? @role
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flash[:notice] = t('user_role.filter.doesnt_have_role', :role => @role)
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redirect_to :controller => 'user', :action => 'view', :display_name => @this_user.display_name
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end
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end
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end
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