JWT在PHP使用及问题处理

composer require lcobucci/jwt

<?php

use \Lcobucci\JWT\Builder;
use \Lcobucci\JWT\Signer\Hmac\Sha256;

include "../vendor/autoload.php";

$builder = new Builder();
$signer  = new Sha256();

$secret = "XXXXXXXXXXXXXXXXXXXXX";

//设置header和payload，以下的字段都可以自定义
$builder->setIssuer("XXX.com") //发布者
        ->setAudience("XXX.com") //接收者
        ->setId("abc", true) //对当前token设置的标识
        ->setIssuedAt(time()) //token创建时间
        ->setExpiration(time() + 60) //过期时间
        ->setNotBefore(time() + 5) //当前时间在这个时间前，token不能使用
        ->set(‘uid‘, 30061); //自定义数据

//设置签名
$builder->sign($signer, $secret);
//获取加密后的token，转为字符串
$token = (string)$builder->getToken();
var_dump($token);

<?php

use \Lcobucci\JWT\Parser;
use \Lcobucci\JWT\Signer\Hmac\Sha256;

include "../vendor/autoload.php";

$signer  = new Sha256();

$secret = "XXXXXXXXXXXXXXXXXXXXX";

//获取token
$token = isset($_SERVER[‘HTTP_AUTHORIZATION‘]) ? $_SERVER[‘HTTP_AUTHORIZATION‘] : ‘‘;

if (!$token) {
    invalidToken(‘Invalid token‘);
}

try {
    //解析token
    $parse = (new Parser())->parse($token);
    //验证token合法性
    if (!$parse->verify($signer, $secret)) {
        invalidToken(‘Invalid token‘);
    }

    //验证是否已经过期
    if ($parse->isExpired()) {
        invalidToken(‘Already expired‘);
    }

    //获取数据
    var_dump($parse->getClaims());

} catch (Exception $e) {
    //var_dump($e->getMessage());
    invalidToken(‘Invalid token‘);
}

function invalidToken($msg) {
    header(‘HTTP/1.1 403 forbidden‘);
    exit($msg);
}

SetEnvIf Authorization “(.*)” HTTP_AUTHORIZATION=$1

RewriteEngine On
RewriteCond %{HTTP:Authorization} ^(.*)
RewriteRule .* - [e=HTTP_AUTHORIZATION:%1]

http://api.yoursite.com/?token={yourtokenhere}