133 lines
4.1 KiB
PHP
Executable File
133 lines
4.1 KiB
PHP
Executable File
<?php
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namespace app\service;
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use DateTimeImmutable;
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use DateTimeZone;
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use Exception;
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use Lcobucci\Clock\SystemClock;
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use Lcobucci\JWT\Configuration;
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use Lcobucci\JWT\Signer\Hmac\Sha256;
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use Lcobucci\JWT\Signer\Key\InMemory;
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use Lcobucci\JWT\UnencryptedToken;
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use Lcobucci\JWT\Validation\Constraint\IssuedBy;
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use Lcobucci\JWT\Validation\Constraint\LooseValidAt;
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use Lcobucci\JWT\Validation\Constraint\PermittedFor;
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use Lcobucci\JWT\Validation\Constraint\ValidAt;
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class Jwt
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{
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private static $secret = 'mBC6v1sOKVvbdEitdSBenu59nfNfhwkedkJVNabosTw=';
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private static $expire = 7200 * 10;//秒
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private static $iss = 'dxtc';//jwt签发者
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private static $sub = 'dxtc-customer';//jwt所面向的用户
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private static $aud = 'dxtc-customer';//接受jwt的一方
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private static function config(): Configuration
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{
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return Configuration::forSymmetricSigner(
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// You may use any HMAC variations (256, 384, and 512)
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new Sha256(),
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// replace the value below with a key of your own!
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InMemory::base64Encoded(self::$secret)
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// You may also override the JOSE encoder/decoder if needed by providing extra arguments here
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);
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}
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/**
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* 获取token有效期 单位秒
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*
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* @return int
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*/
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public static function expire(): int
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{
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return self::$expire;
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}
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/**
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* 编码
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*
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* @param $data
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* @param int $expire
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* @return string
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* @throws Exception
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*/
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public static function generate($data, int $expire = 0): string
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{
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$expire = $expire <= 0 ? self::$expire : $expire;
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$now = new DateTimeImmutable('now', new DateTimeZone('Asia/ShangHai'));
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$token = self::config()->builder()
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// Configures the issuer (iss claim)
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->issuedBy(self::$iss)
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// Configures the audience (aud claim)
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->permittedFor(self::$aud)
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// Configures the id (jti claim)
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// ->identifiedBy($this->jti)
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// Configures the time that the token was issue (iat claim)
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->issuedAt($now)
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// Configures the expiration time of the token (exp claim)
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->expiresAt($now->modify(sprintf('+%d seconds', $expire)))
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// Configures a new claim, called "uid"
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->withClaim('data', $data)
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// Configures a new header, called "foo"
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// ->withHeader('foo', 'bar')
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// Builds a new token
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->getToken(self::config()->signer(), self::config()->signingKey());
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return $token->toString();
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}
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/**
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* 解析
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*
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* @param string $tokenStr
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* @return array|mixed
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*/
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public static function parse(string $tokenStr)
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{
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$config = self::config();
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try {
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$token = $config->parser()->parse($tokenStr);
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assert($token instanceof UnencryptedToken);
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return $token->claims()->all()['data'] ?? [];
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} catch (Exception $e) {
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return [];
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}
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}
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/**
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* 验证token
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*
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* @param string $tokenStr
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* @return bool
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*/
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public static function validate(string $tokenStr): bool
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{
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$config = self::config();
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try {
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$token = $config->parser()->parse($tokenStr);
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assert($token instanceof UnencryptedToken);
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//验证签发人iss是否正确
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$validateIssued = new IssuedBy(self::$iss);
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$config->setValidationConstraints($validateIssued);
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//验证客户端aud是否匹配
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$validateAud = new PermittedFor(self::$aud);
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$config->setValidationConstraints($validateAud);
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//验证是否过期 exp
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$timezone = new DateTimeZone('Asia/Shanghai');
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$now = new SystemClock($timezone);
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$validateExpired = new LooseValidAt($now);
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$config->setValidationConstraints($validateExpired);
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$constraints = $config->validationConstraints();
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return $config->validator()->validate($token, ...$constraints);
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} catch (Exception $e) {
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return false;
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}
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}
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} |