'use strict';

const crypto = require('crypto');

exports.main = async (event, context) => {
	const {
	    path,
	    queryStringParameters
	} = event;
	
	const data = {
		adpid: event.adpid,
		platform: event.platform,
		provider: event.provider,
		trans_id: event.trans_id,
		sign: event.sign,
		user_id: event.user_id,
		extra: event.extra,
	}
	
	const secret = 'a7b111748f195a68b95b8e1a1560d8de1f79d33210a6b96101c3ced15b5b2121';// uniad 后台开通激励视频回调后生成的 Security key
	const trans_id = event.trans_id;
	const sign2 = crypto.createHash('sha256').update(`${secret}:${trans_id}`).digest('hex');
	
	if (event.sign !== sign2) {
		return null;
	}
	
	//返回数据给客户端
	return event
};