⼩程序登录demo
class Token
{
use Send;
/**
* 请求时间差
*/
public static $timeDif = 10000;
public static $accessTokenPrefix = 'accessToken_';
public static $refreshAccessTokenPrefix = 'refreshAccessToken_';
public static $expires = 7200;
public static $refreshExpires = 60*60*24*30;  //刷新token过期时间
/**
* 测试appid，正式请数据库进⾏相关验证
*/
public static $appid = 'tp5restfultest';
/**
* appsercet
*/
public static $appsercet = '123456';
/**
* ⽣成token
*/
public function token(Request $request)
{
//参数验证
$validate = new \app\api\validate\Token;
if(!$validate->check(input(''))){
return self::returnMsg(401,$validate->getError());
}
self::checkParams(input(''));  //参数校验
//数据库已经有⼀个⽤户，这⾥需要根据input('mobile')去数据库查有没有这个⽤户
$userInfo = [
'uid'  => 1,
'mobile'=> input('mobile')
]; //虚拟⼀个uid返回给调⽤⽅
try {
$accessToken = self::setAccessToken(array_merge($userInfo,input('')));  //传⼊参数应该是根据⼿机号查询改⽤户的数据
return self::returnMsg(200,'success',$accessToken);
} catch (Exception $e) {
return self::returnMsg(500,'fail',$e);
}
}
public function getOpenId($code = '',$encryptedData = '',$iv = '',$appInfo = [])
{
$result = json_decode(file_get_contents("api.weixin.qq/sns/jscode2session?appid=" . $appInfo['wx_appid'] . "&secret=" . $appInfo['wx_appsercet  if(empty($result['session_key'])){
return $this->returnmsg(401,'获取token失败!'.$result['errmsg']);
}else{
$pc = new wxBizDataCrypt($appInfo['wx_appid'], $result['session_key']);
$data = $pc->decryptData($encryptedData, $iv); //解密⽤户基础信息
$data = json_decode($data, true);
if (!empty($data['openId'])) {
if (isset($data['unionId'])) { //含有unionid
$is_unionid['is_unionid'] = true;
$userInfo = WechatFans::get(['unionid' => $data['unionId']]); //按照unionid查
if(empty($userInfo)){
$userInfo = WechatFans::get(['openid' => $data['openId']]); //按照openid查
} else {
$is_unionid['is_unionid'] = false;
$userInfo = WechatFans::get(['openid' => $data['openId']]); //按照openid查
}
$userAdd['openid']    = $data['openId'];
$userAdd['unionid']    = isset($data['unionId']) ? $data['unionId'] : '';
$userAdd['nickname']  = $data['nickName'];
$userAdd['avatar']    = $data['avatarUrl'];
$userAdd['sex']        = $data['gender'];
$userAdd['province']  = $data['province'];
$userAdd['country']    = $data['country'];
$userAdd['updatetime'] = time();
if(empty($userInfo)){  //⽤户没有在fans表⾥⾯
写文章的小程序
$userAdd['createtime'] = $userAdd['updatetime'];
$userAdd['subscribe_scene'] = 'WEIXIN';
$userAdd['source'] = 2;
WechatFans::create($userAdd);  //插⼊到粉丝表
}else{
WechatFans::where('id',$userInfo['id'])->update($userAdd);
$userAdd['uid'] = $userInfo['uid'];
}
return $userAdd;
}else{
return $this->returnmsg(401,'获取token失败!解析数据失败');
}
}
}
/**
* 刷新token
*/
public function refresh($refresh_token='',$appid = '')
{
$cache_refresh_token = Cache::get(self::$refreshAccessTokenPrefix.$appid);  //查看刷新token是否存在  if(!$cache_refresh_token){
return self::returnMsg(401,'fail','refresh_token is null');
}else{
if($cache_refresh_token !== $refresh_token){
return self::returnMsg(401,'fail','refresh_token is error');
}else{    //重新给⽤户⽣成调⽤token
$data['appid'] = $appid;
$accessToken = self::setAccessToken($data);
return self::returnMsg(200,'success',$accessToken);
}
}
}
/**
* 参数检测
*/
public static function checkParams($params = [])
{
//时间戳校验
if(abs($params['timestamp'] - time()) > self::$timeDif){
return self::returnMsg(401,'请求时间戳与服务器时间戳异常','timestamp：'.time());
}
/
/appid检测，这⾥是在本地进⾏测试，正式的应该是查数据库或者redis进⾏验证
if($params['appid'] !== self::$appid){
return self::returnMsg(401,'appid 错误');
}
$sign = Oauth::makeSign($params,self::$appsercet);
if($sign !== $params['sign']){
return self::returnMsg(401,'sign错误','sign：'.$sign);
}
}
/**
* 设置AccessToken
* @param $clientInfo
* @return int
*/
protected function setAccessToken($clientInfo)
{
//⽣成令牌
$accessToken = self::buildAccessToken();
$refresh_token = self::getRefreshToken($clientInfo['appid']);
$accessTokenInfo = [
'access_token'  => $accessToken,//访问令牌
'expires_time'  => time() + self::$expires,      //过期时间时间戳
'refresh_token' => $refresh_token,//刷新的token
'refresh_expires_time'  => time() + self::$refreshExpires,      //过期时间时间戳
'client'        => $clientInfo,//⽤户信息
];
self::saveAccessToken($accessToken, $accessTokenInfo);  //保存本次token
self::saveRefreshToken($refresh_token,$clientInfo['appid']);
return $accessTokenInfo;
}
/**
* 刷新⽤的token检测是否还有效
*/
public static function getRefreshToken($appid = '')
{
return Cache::get(self::$refreshAccessTokenPrefix.$appid) ? Cache::get(self::$refreshAccessTokenPrefix.$appid) : self::buildAccessToken();    }
/**
* ⽣成AccessToken
* @return string
*/
protected static function buildAccessToken($lenght = 32)
{
//⽣成AccessToken
$str_pol = "1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ123456789abcdefghijklmnopqrstuvwxyz";
return substr(str_shuffle($str_pol), 0, $lenght);
}
/**
* 存储token
* @param $accessToken
* @param $accessTokenInfo
*/
protected static function saveAccessToken($accessToken, $accessTokenInfo)
{
//存储accessToken
cache(self::$accessTokenPrefix . $accessToken, $accessTokenInfo, self::$expires);
}
/**
* 刷新token存储
* @param $accessToken
* @param $accessTokenInfo
*/
protected static function saveRefreshToken($refresh_token,$appid)
{
//存储RefreshToken
cache(self::$refreshAccessTokenPrefix.$appid,$refresh_token,self::$refreshExpires);    }
}

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