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independent-analytics / vendor / symfony / translation / Util / XliffUtils.php

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ArrayConverter.php 1 month ago XliffUtils.php 1 month ago

XliffUtils.php

156 lines

1	<?php
2
3	/*
4	* This file is part of the Symfony package.
5	*
6	* (c) Fabien Potencier <fabien@symfony.com>
7	*
8	* For the full copyright and license information, please view the LICENSE
9	* file that was distributed with this source code.
10	*/
11	namespace IAWPSCOPED\Symfony\Component\Translation\Util;
12
13	use IAWPSCOPED\Symfony\Component\Translation\Exception\InvalidArgumentException;
14	use IAWPSCOPED\Symfony\Component\Translation\Exception\InvalidResourceException;
15	/**
16	* Provides some utility methods for XLIFF translation files, such as validating
17	* their contents according to the XSD schema.
18	*
19	* @author Fabien Potencier <fabien@symfony.com>
20	* @internal
21	*/
22	class XliffUtils
23	{
24	/**
25	* Gets xliff file version based on the root "version" attribute.
26	*
27	* Defaults to 1.2 for backwards compatibility.
28	*
29	* @throws InvalidArgumentException
30	*/
31	public static function getVersionNumber(\DOMDocument $dom) : string
32	{
33	/** @var \DOMNode $xliff */
34	foreach ($dom->getElementsByTagName('xliff') as $xliff) {
35	$version = $xliff->attributes->getNamedItem('version');
36	if ($version) {
37	return $version->nodeValue;
38	}
39	$namespace = $xliff->attributes->getNamedItem('xmlns');
40	if ($namespace) {
41	if (0 !== \substr_compare('urn:oasis:names:tc:xliff:document:', $namespace->nodeValue, 0, 34)) {
42	throw new InvalidArgumentException(\sprintf('Not a valid XLIFF namespace "%s".', $namespace));
43	}
44	return \substr($namespace, 34);
45	}
46	}
47	// Falls back to v1.2
48	return '1.2';
49	}
50	/**
51	* Validates and parses the given file into a DOMDocument.
52	*
53	* @throws InvalidResourceException
54	*/
55	public static function validateSchema(\DOMDocument $dom) : array
56	{
57	$xliffVersion = static::getVersionNumber($dom);
58	$internalErrors = \libxml_use_internal_errors(\true);
59	if ($shouldEnable = self::shouldEnableEntityLoader()) {
60	$disableEntities = \libxml_disable_entity_loader(\false);
61	}
62	try {
63	$isValid = @$dom->schemaValidateSource(self::getSchema($xliffVersion));
64	if (!$isValid) {
65	return self::getXmlErrors($internalErrors);
66	}
67	} finally {
68	if ($shouldEnable) {
69	\libxml_disable_entity_loader($disableEntities);
70	}
71	}
72	$dom->normalizeDocument();
73	\libxml_clear_errors();
74	\libxml_use_internal_errors($internalErrors);
75	return [];
76	}
77	private static function shouldEnableEntityLoader() : bool
78	{
79	static $dom, $schema;
80	if (null === $dom) {
81	$dom = new \DOMDocument();
82	$dom->loadXML('<?xml version="1.0"?><test/>');
83	$tmpfile = \tempnam(\sys_get_temp_dir(), 'symfony');
84	\register_shutdown_function(static function () use($tmpfile) {
85	@\unlink($tmpfile);
86	});
87	$schema = '<?xml version="1.0" encoding="utf-8"?>
88	<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
89	<xsd:include schemaLocation="file:///' . \str_replace('\\', '/', $tmpfile) . '" />
90	</xsd:schema>';
91	\file_put_contents($tmpfile, '<?xml version="1.0" encoding="utf-8"?>
92	<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
93	<xsd:element name="test" type="testType" />
94	<xsd:complexType name="testType"/>
95	</xsd:schema>');
96	}
97	return !@$dom->schemaValidateSource($schema);
98	}
99	public static function getErrorsAsString(array $xmlErrors) : string
100	{
101	$errorsAsString = '';
102	foreach ($xmlErrors as $error) {
103	$errorsAsString .= \sprintf("[%s %s] %s (in %s - line %d, column %d)\n", \LIBXML_ERR_WARNING === $error['level'] ? 'WARNING' : 'ERROR', $error['code'], $error['message'], $error['file'], $error['line'], $error['column']);
104	}
105	return $errorsAsString;
106	}
107	private static function getSchema(string $xliffVersion) : string
108	{
109	if ('1.2' === $xliffVersion) {
110	$schemaSource = \file_get_contents(__DIR__ . '/../Resources/schemas/xliff-core-1.2-strict.xsd');
111	$xmlUri = 'http://www.w3.org/2001/xml.xsd';
112	} elseif ('2.0' === $xliffVersion) {
113	$schemaSource = \file_get_contents(__DIR__ . '/../Resources/schemas/xliff-core-2.0.xsd');
114	$xmlUri = 'informativeCopiesOf3rdPartySchemas/w3c/xml.xsd';
115	} else {
116	throw new InvalidArgumentException(\sprintf('No support implemented for loading XLIFF version "%s".', $xliffVersion));
117	}
118	return self::fixXmlLocation($schemaSource, $xmlUri);
119	}
120	/**
121	* Internally changes the URI of a dependent xsd to be loaded locally.
122	*/
123	private static function fixXmlLocation(string $schemaSource, string $xmlUri) : string
124	{
125	$newPath = \str_replace('\\', '/', __DIR__) . '/../Resources/schemas/xml.xsd';
126	$parts = \explode('/', $newPath);
127	$locationstart = 'file:///';
128	if (0 === \stripos($newPath, 'phar://')) {
129	$tmpfile = \tempnam(\sys_get_temp_dir(), 'symfony');
130	if ($tmpfile) {
131	\copy($newPath, $tmpfile);
132	$parts = \explode('/', \str_replace('\\', '/', $tmpfile));
133	} else {
134	\array_shift($parts);
135	$locationstart = 'phar:///';
136	}
137	}
138	$drive = '\\' === \DIRECTORY_SEPARATOR ? \array_shift($parts) . '/' : '';
139	$newPath = $locationstart . $drive . \implode('/', \array_map('rawurlencode', $parts));
140	return \str_replace($xmlUri, $newPath, $schemaSource);
141	}
142	/**
143	* Returns the XML errors of the internal XML parser.
144	*/
145	private static function getXmlErrors(bool $internalErrors) : array
146	{
147	$errors = [];
148	foreach (\libxml_get_errors() as $error) {
149	$errors[] = ['level' => \LIBXML_ERR_WARNING == $error->level ? 'WARNING' : 'ERROR', 'code' => $error->code, 'message' => \trim($error->message), 'file' => $error->file ?: 'n/a', 'line' => $error->line, 'column' => $error->column];
150	}
151	\libxml_clear_errors();
152	\libxml_use_internal_errors($internalErrors);
153	return $errors;
154	}
155	}
156