71 lines
1.9 KiB
PHP
71 lines
1.9 KiB
PHP
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<?php
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/*
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* This file is part of the PHPASN1 library.
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*
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* Copyright © Friedrich Große <friedrich.grosse@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace FG\ASN1;
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use Exception;
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use FG\ASN1\Exception\ParserException;
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use FG\ASN1\Universal\Sequence;
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class TemplateParser
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{
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/**
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* @param string $data
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* @param array $template
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* @return \FG\ASN1\ASNObject|Sequence
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* @throws ParserException if there was an issue parsing
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*/
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public function parseBase64($data, array $template)
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{
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// TODO test with invalid data
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return $this->parseBinary(base64_decode($data), $template);
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}
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/**
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* @param string $binary
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* @param array $template
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* @return \FG\ASN1\ASNObject|Sequence
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* @throws ParserException if there was an issue parsing
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*/
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public function parseBinary($binary, array $template)
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{
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$parsedObject = ASNObject::fromBinary($binary);
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foreach ($template as $key => $value) {
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$this->validate($parsedObject, $key, $value);
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}
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return $parsedObject;
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}
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private function validate(ASNObject $object, $key, $value)
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{
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if (is_array($value)) {
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$this->assertTypeId($key, $object);
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/* @var Construct $object */
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foreach ($value as $key => $child) {
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$this->validate($object->current(), $key, $child);
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$object->next();
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}
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} else {
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$this->assertTypeId($value, $object);
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}
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}
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private function assertTypeId($expectedTypeId, ASNObject $object)
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{
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$actualType = $object->getType();
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if ($expectedTypeId != $actualType) {
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throw new Exception("Expected type ($expectedTypeId) does not match actual type ($actualType");
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}
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}
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}
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