98 lines
2.5 KiB
PHP
98 lines
2.5 KiB
PHP
<?php
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declare(strict_types=1);
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/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2014-2020 Spomky-Labs
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*
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* This software may be modified and distributed under the terms
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* of the MIT license. See the LICENSE file for details.
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*/
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namespace Jose\Component\Checker;
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use function array_key_exists;
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use function count;
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/**
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* This manager handles as many claim checkers as needed.
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*/
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class ClaimCheckerManager
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{
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/**
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* @var ClaimChecker[]
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*/
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private $checkers = [];
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/**
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* @param ClaimChecker[] $checkers
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*/
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public function __construct(array $checkers)
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{
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foreach ($checkers as $checker) {
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$this->add($checker);
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}
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}
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/**
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* This method returns all checkers handled by this manager.
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*
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* @return ClaimChecker[]
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*/
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public function getCheckers(): array
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{
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return $this->checkers;
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}
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/**
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* This method checks all the claims passed as argument.
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* All claims are checked against the claim checkers.
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* If one fails, the InvalidClaimException is thrown.
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*
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* This method returns an array with all checked claims.
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* It is up to the implementor to decide use the claims that have not been checked.
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*
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* @param string[] $mandatoryClaims
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*
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* @throws InvalidClaimException
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* @throws MissingMandatoryClaimException
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*/
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public function check(array $claims, array $mandatoryClaims = []): array
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{
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$this->checkMandatoryClaims($mandatoryClaims, $claims);
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$checkedClaims = [];
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foreach ($this->checkers as $claim => $checker) {
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if (array_key_exists($claim, $claims)) {
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$checker->checkClaim($claims[$claim]);
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$checkedClaims[$claim] = $claims[$claim];
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}
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}
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return $checkedClaims;
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}
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private function add(ClaimChecker $checker): void
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{
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$claim = $checker->supportedClaim();
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$this->checkers[$claim] = $checker;
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}
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/**
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* @param string[] $mandatoryClaims
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*
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* @throws MissingMandatoryClaimException
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*/
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private function checkMandatoryClaims(array $mandatoryClaims, array $claims): void
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{
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if (0 === count($mandatoryClaims)) {
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return;
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}
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$diff = array_keys(array_diff_key(array_flip($mandatoryClaims), $claims));
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if (0 !== count($diff)) {
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throw new MissingMandatoryClaimException(sprintf('The following claims are mandatory: %s.', implode(', ', $diff)), $diff);
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}
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}
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}
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