forgeplus/app/controllers/oauth/acge_controller.rb

class Oauth::AcgeController < Oauth::BaseController
  include RegisterHelper

  def create 
    begin
      code = params['code'].to_s.strip
      tip_exception("code不能为空") if code.blank?
      uid = params['uid'].to_s.strip
      tip_exception("uid不能为空") if uid.blank?
      redirect_uri = params['redirect_uri'].to_s.strip
      tip_exception("redirect_uri不能为空") if redirect_uri.blank?

      open_user = OpenUsers::Acge.find_by(uid: uid)
      if open_user.present? && open_user.user.present?
        successful_authentication(open_user.user)
        redirect_to redirect_uri
        return
      else
        if current_user.blank? || !current_user.logged?
          session[:unionid] = uid 
        else
          OpenUsers::Acge.create!(user: current_user, uid: uid)
        end
      end

      Rails.logger.info("[OAuth2] session[:unionid] -> #{session[:unionid]}")
      redirect_to "/bindlogin/acge?redirect_uri=#{redirect_uri}"
    rescue Exception => ex
      render_error(ex.message)
    end
  end
end