115 lines
3.3 KiB
PHP
115 lines
3.3 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\HttpClient\Chunk;
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use Symfony\Component\HttpClient\Exception\JsonException;
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use Symfony\Contracts\HttpClient\ChunkInterface;
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/**
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* @author Antoine Bluchet <soyuka@gmail.com>
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* @author Nicolas Grekas <p@tchwork.com>
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*/
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final class ServerSentEvent extends DataChunk implements ChunkInterface
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{
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private string $data = '';
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private string $id = '';
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private string $type = 'message';
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private float $retry = 0;
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private ?array $jsonData = null;
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public function __construct(string $content)
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{
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parent::__construct(-1, $content);
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// remove BOM
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if (str_starts_with($content, "\xEF\xBB\xBF")) {
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$content = substr($content, 3);
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}
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foreach (preg_split("/(?:\r\n|[\r\n])/", $content) as $line) {
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if (0 === $i = strpos($line, ':')) {
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continue;
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}
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$i = false === $i ? \strlen($line) : $i;
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$field = substr($line, 0, $i);
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$i += 1 + (' ' === ($line[1 + $i] ?? ''));
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switch ($field) {
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case 'id':
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$this->id = substr($line, $i);
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break;
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case 'event':
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$this->type = substr($line, $i);
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break;
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case 'data':
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$this->data .= ('' === $this->data ? '' : "\n").substr($line, $i);
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break;
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case 'retry':
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$retry = substr($line, $i);
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if ('' !== $retry && \strlen($retry) === strspn($retry, '0123456789')) {
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$this->retry = $retry / 1000.0;
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}
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break;
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}
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}
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}
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public function getId(): string
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{
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return $this->id;
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}
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public function getType(): string
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{
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return $this->type;
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}
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public function getData(): string
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{
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return $this->data;
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}
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public function getRetry(): float
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{
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return $this->retry;
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}
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/**
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* Gets the SSE data decoded as an array when it's a JSON payload.
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*/
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public function getArrayData(): array
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{
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if (null !== $this->jsonData) {
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return $this->jsonData;
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}
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if ('' === $this->data) {
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throw new JsonException(sprintf('Server-Sent Event%s data is empty.', '' !== $this->id ? sprintf(' "%s"', $this->id) : ''));
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}
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try {
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$jsonData = json_decode($this->data, true, 512, \JSON_BIGINT_AS_STRING | \JSON_THROW_ON_ERROR);
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} catch (\JsonException $e) {
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throw new JsonException(sprintf('Decoding Server-Sent Event%s failed: ', '' !== $this->id ? sprintf(' "%s"', $this->id) : '').$e->getMessage(), $e->getCode());
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}
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if (!\is_array($jsonData)) {
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throw new JsonException(sprintf('JSON content was expected to decode to an array, "%s" returned in Server-Sent Event%s.', get_debug_type($jsonData), '' !== $this->id ? sprintf(' "%s"', $this->id) : ''));
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}
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return $this->jsonData = $jsonData;
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}
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}
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