common.php

<?php 
/**
 * 处理接口公共业务
 */
require_once('./response.php');
require_once('./db.php');
class Common{
	public $params = [];
	public $app;
	public function check(){
		$this->params['app_id'] = $appId = isset($_POST['app_id']) ? $_POST['app_id'] : '';
		$this->params['version_id'] = $versionId = isset($_POST['version_id']) ? $_POST['version_id'] : '';
		$this->params['version_mini'] = $versionMini = isset($_POST['version_mini']) ? $_POST['version_mini'] : '';
		$this->params['did'] = $did = isset($_POST['did']) ? $_POST['did'] : '';
		$this->params['encrypt_did'] = $encryptDid = isset($_POST['encrypt_did'])?$_POST['encrypt_did'] : '';
		if(!is_numeric($appId) || !is_numeric($versionId)){
			return Response::show(401,'参数不合法');
		}

		// 判断APP是否需要加密
		$this->app = $this->getApp($appId);
		if(!$this->app){
			return Response::show(401,'app_id不存在');
		}

		if($this->app['is_encryption'] && $encryptDid != md5($did.$this->app['key'])){
			return Response::show(403,'没有该权限');
		}
	}	
	public function getApp($id){
		// 可做缓存
		$sql = "select * from `app` where id = ".$id." and status = 1 limit 1 ";
		$connect = Db::getInstance()->connect();
		$result = mysql_query($sql,$connect);
		return mysql_fetch_assoc($result);
	}

	public function getVersionUpgrade($appId){
		$sql = "select * from `version_upgrade` where app_id = ".$appId." and status = 1 limit 1 ";
		$connect = Db::getInstance()->connect();
		$result = mysql_query($sql,$connect);
		return mysql_fetch_assoc($result);
	}
}