require_dependency 'oneboxer' class OneboxController < ApplicationController requires_login def show unless params[:refresh] == 'true' preview = Oneboxer.cached_preview(params[:url]) preview.strip! if preview.present? return render(plain: preview) if preview.present? end # only 1 outgoing preview per user return render(body: nil, status: 429) if Oneboxer.is_previewing?(current_user.id) user_id = current_user.id category_id = params[:category_id].to_i topic_id = params[:topic_id].to_i invalidate = params[:refresh] == 'true' url = params[:url] hijack do Oneboxer.preview_onebox!(user_id) preview = Oneboxer.preview(url, invalidate_oneboxes: invalidate, user_id: user_id, category_id: category_id, topic_id: topic_id ) preview.strip! if preview.present? Oneboxer.onebox_previewed!(user_id) if preview.blank? render body: nil, status: 404 else render plain: preview end end end end