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- <?php
- namespace Symfony\Component\HttpFoundation;
- class_exists(AcceptHeaderItem::class);
- class AcceptHeader
- {
-
- private $items = [];
-
- private $sorted = true;
-
- public function __construct(array $items)
- {
- foreach ($items as $item) {
- $this->add($item);
- }
- }
-
- public static function fromString(?string $headerValue)
- {
- $index = 0;
- $parts = HeaderUtils::split($headerValue ?? '', ',;=');
- return new self(array_map(function ($subParts) use (&$index) {
- $part = array_shift($subParts);
- $attributes = HeaderUtils::combine($subParts);
- $item = new AcceptHeaderItem($part[0], $attributes);
- $item->setIndex($index++);
- return $item;
- }, $parts));
- }
-
- public function __toString()
- {
- return implode(',', $this->items);
- }
-
- public function has(string $value)
- {
- return isset($this->items[$value]);
- }
-
- public function get(string $value)
- {
- return $this->items[$value] ?? $this->items[explode('/', $value)[0].'/*'] ?? $this->items['*/*'] ?? $this->items['*'] ?? null;
- }
-
- public function add(AcceptHeaderItem $item)
- {
- $this->items[$item->getValue()] = $item;
- $this->sorted = false;
- return $this;
- }
-
- public function all()
- {
- $this->sort();
- return $this->items;
- }
-
- public function filter(string $pattern)
- {
- return new self(array_filter($this->items, function (AcceptHeaderItem $item) use ($pattern) {
- return preg_match($pattern, $item->getValue());
- }));
- }
-
- public function first()
- {
- $this->sort();
- return !empty($this->items) ? reset($this->items) : null;
- }
-
- private function sort(): void
- {
- if (!$this->sorted) {
- uasort($this->items, function (AcceptHeaderItem $a, AcceptHeaderItem $b) {
- $qA = $a->getQuality();
- $qB = $b->getQuality();
- if ($qA === $qB) {
- return $a->getIndex() > $b->getIndex() ? 1 : -1;
- }
- return $qA > $qB ? -1 : 1;
- });
- $this->sorted = true;
- }
- }
- }
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