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pma/vendor/fgrosse/phpasn1/lib/ASN1/TemplateParser.php

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