317 lines
9.0 KiB
PHP
317 lines
9.0 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.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 Symfony\Component\Mime\Header;
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use Symfony\Component\Mime\Address;
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use Symfony\Component\Mime\Exception\LogicException;
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/**
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* A collection of headers.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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final class Headers
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{
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private const UNIQUE_HEADERS = [
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'date', 'from', 'sender', 'reply-to', 'to', 'cc', 'bcc',
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'message-id', 'in-reply-to', 'references', 'subject',
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];
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private const HEADER_CLASS_MAP = [
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'date' => DateHeader::class,
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'from' => MailboxListHeader::class,
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'sender' => MailboxHeader::class,
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'reply-to' => MailboxListHeader::class,
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'to' => MailboxListHeader::class,
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'cc' => MailboxListHeader::class,
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'bcc' => MailboxListHeader::class,
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'message-id' => IdentificationHeader::class,
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'in-reply-to' => [UnstructuredHeader::class, IdentificationHeader::class], // `In-Reply-To` and `References` are less strict than RFC 2822 (3.6.4) to allow users entering the original email's ...
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'references' => [UnstructuredHeader::class, IdentificationHeader::class], // ... `Message-ID`, even if that is no valid `msg-id`
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'return-path' => PathHeader::class,
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];
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/**
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* @var HeaderInterface[][]
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*/
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private array $headers = [];
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private int $lineLength = 76;
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public function __construct(HeaderInterface ...$headers)
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{
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foreach ($headers as $header) {
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$this->add($header);
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}
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}
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public function __clone()
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{
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foreach ($this->headers as $name => $collection) {
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foreach ($collection as $i => $header) {
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$this->headers[$name][$i] = clone $header;
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}
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}
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}
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public function setMaxLineLength(int $lineLength): void
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{
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$this->lineLength = $lineLength;
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foreach ($this->all() as $header) {
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$header->setMaxLineLength($lineLength);
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}
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}
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public function getMaxLineLength(): int
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{
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return $this->lineLength;
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}
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/**
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* @param array<Address|string> $addresses
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*
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* @return $this
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*/
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public function addMailboxListHeader(string $name, array $addresses): static
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{
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return $this->add(new MailboxListHeader($name, Address::createArray($addresses)));
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}
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/**
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* @return $this
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*/
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public function addMailboxHeader(string $name, Address|string $address): static
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{
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return $this->add(new MailboxHeader($name, Address::create($address)));
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}
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/**
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* @return $this
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*/
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public function addIdHeader(string $name, string|array $ids): static
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{
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return $this->add(new IdentificationHeader($name, $ids));
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}
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/**
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* @return $this
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*/
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public function addPathHeader(string $name, Address|string $path): static
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{
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return $this->add(new PathHeader($name, $path instanceof Address ? $path : new Address($path)));
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}
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/**
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* @return $this
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*/
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public function addDateHeader(string $name, \DateTimeInterface $dateTime): static
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{
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return $this->add(new DateHeader($name, $dateTime));
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}
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/**
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* @return $this
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*/
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public function addTextHeader(string $name, string $value): static
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{
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return $this->add(new UnstructuredHeader($name, $value));
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}
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/**
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* @return $this
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*/
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public function addParameterizedHeader(string $name, string $value, array $params = []): static
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{
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return $this->add(new ParameterizedHeader($name, $value, $params));
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}
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/**
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* @return $this
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*/
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public function addHeader(string $name, mixed $argument, array $more = []): static
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{
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$headerClass = self::HEADER_CLASS_MAP[strtolower($name)] ?? UnstructuredHeader::class;
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if (\is_array($headerClass)) {
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$headerClass = $headerClass[0];
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}
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$parts = explode('\\', $headerClass);
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$method = 'add'.ucfirst(array_pop($parts));
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if ('addUnstructuredHeader' === $method) {
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$method = 'addTextHeader';
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} elseif ('addIdentificationHeader' === $method) {
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$method = 'addIdHeader';
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} elseif ('addMailboxListHeader' === $method && !\is_array($argument)) {
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$argument = [$argument];
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}
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return $this->$method($name, $argument, $more);
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}
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public function has(string $name): bool
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{
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return isset($this->headers[strtolower($name)]);
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}
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/**
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* @return $this
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*/
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public function add(HeaderInterface $header): static
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{
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self::checkHeaderClass($header);
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$header->setMaxLineLength($this->lineLength);
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$name = strtolower($header->getName());
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if (\in_array($name, self::UNIQUE_HEADERS, true) && isset($this->headers[$name]) && \count($this->headers[$name]) > 0) {
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throw new LogicException(sprintf('Impossible to set header "%s" as it\'s already defined and must be unique.', $header->getName()));
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}
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$this->headers[$name][] = $header;
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return $this;
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}
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public function get(string $name): ?HeaderInterface
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{
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$name = strtolower($name);
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if (!isset($this->headers[$name])) {
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return null;
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}
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$values = array_values($this->headers[$name]);
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return array_shift($values);
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}
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public function all(?string $name = null): iterable
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{
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if (null === $name) {
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foreach ($this->headers as $name => $collection) {
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foreach ($collection as $header) {
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yield $name => $header;
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}
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}
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} elseif (isset($this->headers[strtolower($name)])) {
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foreach ($this->headers[strtolower($name)] as $header) {
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yield $header;
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}
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}
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}
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public function getNames(): array
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{
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return array_keys($this->headers);
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}
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public function remove(string $name): void
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{
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unset($this->headers[strtolower($name)]);
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}
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public static function isUniqueHeader(string $name): bool
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{
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return \in_array(strtolower($name), self::UNIQUE_HEADERS, true);
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}
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/**
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* @throws LogicException if the header name and class are not compatible
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*/
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public static function checkHeaderClass(HeaderInterface $header): void
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{
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$name = strtolower($header->getName());
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$headerClasses = self::HEADER_CLASS_MAP[$name] ?? [];
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if (!\is_array($headerClasses)) {
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$headerClasses = [$headerClasses];
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}
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if (!$headerClasses) {
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return;
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}
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foreach ($headerClasses as $c) {
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if ($header instanceof $c) {
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return;
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}
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}
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throw new LogicException(sprintf('The "%s" header must be an instance of "%s" (got "%s").', $header->getName(), implode('" or "', $headerClasses), get_debug_type($header)));
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}
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public function toString(): string
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{
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$string = '';
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foreach ($this->toArray() as $str) {
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$string .= $str."\r\n";
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}
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return $string;
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}
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public function toArray(): array
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{
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$arr = [];
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foreach ($this->all() as $header) {
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if ('' !== $header->getBodyAsString()) {
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$arr[] = $header->toString();
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}
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}
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return $arr;
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}
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public function getHeaderBody(string $name): mixed
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{
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return $this->has($name) ? $this->get($name)->getBody() : null;
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}
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/**
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* @internal
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*/
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public function setHeaderBody(string $type, string $name, mixed $body): void
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{
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if ($this->has($name)) {
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$this->get($name)->setBody($body);
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} else {
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$this->{'add'.$type.'Header'}($name, $body);
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}
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}
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public function getHeaderParameter(string $name, string $parameter): ?string
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{
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if (!$this->has($name)) {
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return null;
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}
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$header = $this->get($name);
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if (!$header instanceof ParameterizedHeader) {
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throw new LogicException(sprintf('Unable to get parameter "%s" on header "%s" as the header is not of class "%s".', $parameter, $name, ParameterizedHeader::class));
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}
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return $header->getParameter($parameter);
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}
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/**
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* @internal
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*/
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public function setHeaderParameter(string $name, string $parameter, ?string $value): void
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{
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if (!$this->has($name)) {
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throw new LogicException(sprintf('Unable to set parameter "%s" on header "%s" as the header is not defined.', $parameter, $name));
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}
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$header = $this->get($name);
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if (!$header instanceof ParameterizedHeader) {
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throw new LogicException(sprintf('Unable to set parameter "%s" on header "%s" as the header is not of class "%s".', $parameter, $name, ParameterizedHeader::class));
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}
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$header->setParameter($parameter, $value);
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}
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}
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