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<?php
/*
* This file is part of Twig.
*
* (c) Fabien Potencier
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Twig\Extra\Html;
use Symfony\Component\Mime\MimeTypes;
use Twig\Error\RuntimeError;
use Twig\Extension\AbstractExtension;
use Twig\Markup;
use Twig\TwigFilter;
use Twig\TwigFunction;
final class HtmlExtension extends AbstractExtension
{
private $mimeTypes;
public function __construct(?MimeTypes $mimeTypes = null)
{
$this->mimeTypes = $mimeTypes;
}
public function getFilters(): array
{
return [
new TwigFilter('data_uri', [$this, 'dataUri']),
];
}
public function getFunctions(): array
{
return [
new TwigFunction('html_classes', [self::class, 'htmlClasses']),
new TwigFunction('html_cva', [self::class, 'htmlCva']),
];
}
/**
* Creates a data URI (RFC 2397).
*
* Length validation is not performed on purpose, validation should
* be done before calling this filter.
*
* @return string The generated data URI
*
* @internal
*/
public function dataUri(string $data, ?string $mime = null, array $parameters = []): string
{
$repr = 'data:';
if (null === $mime) {
if (null === $this->mimeTypes) {
$this->mimeTypes = new MimeTypes();
}
$tmp = tempnam(sys_get_temp_dir(), 'mime');
file_put_contents($tmp, $data);
try {
if (null === $mime = $this->mimeTypes->guessMimeType($tmp)) {
$mime = 'text/plain';
}
} finally {
@unlink($tmp);
}
}
$repr .= $mime;
foreach ($parameters as $key => $value) {
$repr .= ';'.$key.'='.rawurlencode($value);
}
if (0 === strpos($mime, 'text/')) {
$repr .= ','.rawurlencode($data);
} else {
$repr .= ';base64,'.base64_encode($data);
}
return $repr;
}
/**
* @internal
*/
public static function htmlClasses(...$args): string
{
$classes = [];
foreach ($args as $i => $arg) {
if (\is_string($arg) || $arg instanceof Markup) {
$classes[] = (string) $arg;
} elseif (\is_array($arg)) {
foreach ($arg as $class => $condition) {
if (!\is_string($class)) {
throw new RuntimeError(\sprintf('The "html_classes" function argument %d (key %d) should be a string, got "%s".', $i, $class, get_debug_type($class)));
}
if (!$condition) {
continue;
}
$classes[] = $class;
}
} else {
throw new RuntimeError(\sprintf('The "html_classes" function argument %d should be either a string or an array, got "%s".', $i, get_debug_type($arg)));
}
}
return implode(' ', array_unique(array_filter($classes, static function ($v) { return '' !== $v; })));
}
/**
* @param string|list<string|null> $base
* @param array<string, array<string, string|array<string>> $variants
* @param array<array<string, string|array<string>>> $compoundVariants
* @param array<string, string> $defaultVariant
*
* @internal
*/
public static function htmlCva(array|string $base = [], array $variants = [], array $compoundVariants = [], array $defaultVariant = []): Cva
{
return new Cva($base, $variants, $compoundVariants, $defaultVariant);
}
}
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