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|
# frozen_string_literal: true
class UploadsController < ApplicationController
include UploadsActions
UnknownUploadModelError = Class.new(StandardError)
MODEL_CLASSES = {
"user" => User,
"project" => Project,
"note" => Note,
"group" => Group,
"appearance" => Appearance,
"personal_snippet" => PersonalSnippet,
nil => PersonalSnippet
}.freeze
rescue_from UnknownUploadModelError, with: :render_404
skip_before_action :authenticate_user!
before_action :upload_mount_satisfied?
before_action :find_model
before_action :authorize_access!, only: [:show]
before_action :authorize_create_access!, only: [:create]
def uploader_class
PersonalFileUploader
end
def find_model
return unless params[:id]
upload_model_class.find(params[:id])
end
def authorize_access!
return unless model
authorized =
case model
when Note
can?(current_user, :read_project, model.project)
when User
# We validate the current user has enough (writing)
# access to itself when a secret is given.
# For instance, user avatars are readable by anyone,
# while temporary, user snippet uploads are not.
!secret? || can?(current_user, :update_user, model)
when Appearance
true
else
permission = "read_#{model.class.underscore}".to_sym
can?(current_user, permission, model)
end
render_unauthorized unless authorized
end
def authorize_create_access!
return unless model
authorized =
case model
when User
can?(current_user, :update_user, model)
else
can?(current_user, :create_note, model)
end
render_unauthorized unless authorized
end
def render_unauthorized
if current_user
render_404
else
authenticate_user!
end
end
def cache_publicly?
User === model || Appearance === model
end
def secret?
params[:secret].present?
end
def upload_model_class
MODEL_CLASSES[params[:model]] || raise(UnknownUploadModelError)
end
def upload_model_class_has_mounts?
upload_model_class < CarrierWave::Mount::Extension
end
def upload_mount_satisfied?
return true unless upload_model_class_has_mounts?
upload_model_class.uploader_options.has_key?(upload_mount)
end
end
|
