Module: Utils::WeixinHelper

Defined in:
lib/utils/weixin_helper.rb

Instance Method Summary collapse

Instance Method Details

#set_oauth2_access_token(app_id = nil, app_secret = nil) ⇒ Object

获取oauth2 access_token，并设置实例变量



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# File 'lib/utils/weixin_helper.rb', line 40

def set_oauth2_access_token(app_id=nil,app_secret=nil)
  state = 'oauth2'
  state =  Utils::Weixin.oauth2_state if Utils::Weixin.respond_to?('oauth2_state')
  if !params[:state].nil? && params[:state] == state && params[:code] #从授权接口返回
     @oauth2_access_token = Utils::Weixin.get_oauth2_access_token(params[:code],app_id,app_secret)  
     return
  end
  token = Utils::Weixin.get_oauth2_access_token("",app_id,app_secret)
  if token.nil?
    redirect_to Utils::Weixin.get_oauth2_url(request.original_url,'snsapi_base',app_id)
  else
    @oauth2_access_token = token
  end
end

#set_session_openid(session_name = 'openid', app_id = nil, app_secret = nil, scope = 'snsapi_base') ⇒ Object

调用微信接口获取openid，并设置在session中，如果指定scope为snsapi_userinfo，将返回access_token



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# File 'lib/utils/weixin_helper.rb', line 5

def set_session_openid(session_name='openid',app_id=nil,app_secret=nil,scope='snsapi_base')    
  #测试 start o6hyyjlRoyQelo6YgWstsRJjSBb8
  unless params[:openid].blank? 
    #TODO 校验是从微信传过来的参数才写入session；或者使用加密参数，用于没有网页授权接口权限的公众号
    #开发模式下才采用
    session[session_name] = params[:openid] if Rails.env == 'development' 
  end
  #logger.debug("session[:openid]:" + session[:openid] )
  #测试 end

  #已设置openid且不用获取用户信息，直接返回
  return if !session[session_name].blank? && scope == 'snsapi_base'

  state = 'oauth2'
  state =  Utils::Weixin.oauth2_state if Utils::Weixin.respond_to?('oauth2_state')
  if !params[:state].nil? && params[:state] == state && params[:code] #从授权接口返回
     openid = Utils::Weixin.get_openid(params[:code],app_id,app_secret) if scope == 'snsapi_base'
     openid,access_token = Utils::Weixin.get_openid_and_access_token(params[:code],app_id,
                                         app_secret) if scope == 'snsapi_userinfo'
     if openid
       session[session_name] = openid
       return access_token if scope == 'snsapi_userinfo'
     else
       render text: "获取微信用户标识openid失败"
     end
  else
     render text: "微信接口返回参数错误(state,code)或用户未授权访问" if !params[:state].nil?
  end
  if params[:state].nil?
     #如果有state参数，表示从接口返回，不需再跳转
    redirect_to Utils::Weixin.get_oauth2_url(request.original_url,scope,app_id)
  end       
end