php如何設(shè)置權(quán)限令牌token

Route::post(
 'api/:version/token/user',
 'api/:version.Token/getToken'
);

public function getToken($code='') {
 (new TokenGet())->goCheck($code); // 驗(yàn)證器
 $token = (new UserToken($code))->get();
 return [
 'token' => $token
 ];
 }

class TokenGet extends BaseValidate
{
 protected $rule = [
 'code' => 'require|isNotEmpty'
 ];

 protected $message = [
 'code' => '需要code才能獲得Token！'
 ];
 }

$token = (new UserToken($code))->get();復(fù)制代碼

function __construct($code) {
 $this->code = $code;
 $this->wxAppID = config('wx.app_id');
 $this->wxAppSecret = config('wx.app_secret');
 $this->wxLoginUrl = sprintf(
 config('wx.login_url'),
 $this->wxAppID, $this->wxAppSecret, $this->code
 );
 }

private function grantToken($openidObj) {

 // 取出openid
 $openid = $openidObj['openid'];
 
 // 通過Model層調(diào)用數(shù)據(jù)庫，檢查openid是否已經(jīng)存在
 $user = UserModel::getByOpenID($openid);
 
 // 如果存在，不處理，反之則新增一條user記錄
 if ($user) {
 $uid = $user->id;
 } else {
 // 不存在，生成一條數(shù)據(jù)，具體方法略過
 $uid = $this->newUser($openid); 
 }
 
 // 生成令牌，寫入緩存（具體方法見下面的定義）
 $cachedValue = $this->prepareCacheValue($openidObj, $uid);
 $token = $this->saveToCache($cachedValue);
 
 // 令牌返回到調(diào)用者端
 return $token;
}

private function prepareCacheValue($openidObj, $uid) {
 $cachedValue = $openidObj;
 $cachedValue['uid'] = $uid;
 $cachedValue['scope'] = 16; // 權(quán)限值，自己定義
 return $cachedValue;
}
 
private function saveToCache($cachedValue) {
 $key = self::generateToken(); // 生成令牌的方法
 $value = json_encode($cachedValue);
 $tokenExpire = config('setting.token_expire'); // 設(shè)定的過期時(shí)間

 $request = cache($key, $value, $tokenExpire);
 if (!$request) {
 throw new TokenException([
 'msg' => '服務(wù)器緩存異常',
 'errorCode' => 10005
 ]);
 }
 return $key; // 返回令牌:token
}

public static function generateToken() {
 $randomChars = getRandomChars(32); // 32個(gè)字符組成一組隨機(jī)字符串
 $timestamp = $_SERVER['REQUEST_TIME_FLOAT']; 
 $salt = config('security.token_salt'); // salt 鹽
 // 拼接三組字符串，進(jìn)行MD5加密，然后返回
 return md5($randomChars.$timestamp.$salt);
}
 
function getRandomChars($length) {
 $str = null;
 $strPoll = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
 $max = strlen($strPoll) - 1;

 for ($i = 0; $i < $length; $i++) {
 $str .= $strPoll[rand(0, $max)];
 }
 return $str;
}