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<?php
declare(strict_types=1);
namespace GuzzleHttp\Psr7;
use Psr\Http\Message\StreamInterface;
/**
* Provides a read only stream that pumps data from a PHP callable.
*
* When invoking the provided callable, the PumpStream will pass the suggested
* number of bytes to read to the callable. The callable can choose to ignore
* this value and return fewer or more bytes than requested. Any extra data
* returned by the callable is buffered internally until drained using the
* read() function of the PumpStream. The callable MUST return false or null
* when there is no more data to read.
*
* Userland callables that declare no parameters are tolerated by PHP, but
* length-aware callables remain the recommended formal shape.
*/
final class PumpStream implements StreamInterface
{
/** @var callable|null */
private $source;
/** @var int|null */
private $size;
/** @var int */
private $tellPos = 0;
/** @var array */
private $metadata;
/** @var BufferStream */
private $buffer;
/**
* @param (callable(): (string|false|null))|(callable(int): (string|false|null)) $source Source of the stream data. The callable receives
* the suggested number of bytes to read, may ignore
* that value, and may return fewer or more bytes.
* Extra bytes are buffered. The callable MUST return
* a string when called, or false|null on error or EOF.
* Userland callables that declare no parameters are
* tolerated by PHP, but length-aware callables remain
* the recommended formal shape.
* @param array{size?: int, metadata?: array} $options Stream options:
* - metadata: Hash of metadata to use with stream.
* - size: Size of the stream, if known.
*/
public function __construct(callable $source, array $options = [])
{
$this->source = $source;
$this->size = $options['size'] ?? null;
$this->metadata = $options['metadata'] ?? [];
$this->buffer = new BufferStream();
}
public function __toString(): string
{
try {
return Utils::copyToString($this);
} catch (\Throwable $e) {
if (\PHP_VERSION_ID >= 70400) {
throw $e;
}
trigger_error(sprintf('%s::__toString exception: %s', self::class, (string) $e), E_USER_ERROR);
return '';
}
}
public function close(): void
{
$this->detach();
}
public function detach()
{
$this->tellPos = 0;
$this->source = null;
return null;
}
public function getSize(): ?int
{
return $this->size;
}
public function tell(): int
{
return $this->tellPos;
}
public function eof(): bool
{
return $this->source === null;
}
public function isSeekable(): bool
{
return false;
}
public function rewind(): void
{
$this->seek(0);
}
public function seek($offset, $whence = SEEK_SET): void
{
if (!\is_int($offset)) {
\trigger_deprecation(
'guzzlehttp/psr7',
'2.11',
'Passing %s to StreamInterface::seek() is deprecated; guzzlehttp/psr7 3.0 requires int for $offset.',
\get_debug_type($offset)
);
}
if (!\is_int($whence)) {
\trigger_deprecation(
'guzzlehttp/psr7',
'2.11',
'Passing %s to StreamInterface::seek() is deprecated; guzzlehttp/psr7 3.0 requires int for $whence.',
\get_debug_type($whence)
);
}
throw new \RuntimeException('Cannot seek a PumpStream');
}
public function isWritable(): bool
{
return false;
}
public function write($string): int
{
if (!\is_string($string)) {
\trigger_deprecation(
'guzzlehttp/psr7',
'2.11',
'Passing %s to StreamInterface::write() is deprecated; guzzlehttp/psr7 3.0 requires string for $string.',
\get_debug_type($string)
);
}
throw new \RuntimeException('Cannot write to a PumpStream');
}
public function isReadable(): bool
{
return true;
}
public function read($length): string
{
if (!\is_int($length)) {
\trigger_deprecation(
'guzzlehttp/psr7',
'2.11',
'Passing %s to StreamInterface::read() is deprecated; guzzlehttp/psr7 3.0 requires int for $length.',
\get_debug_type($length)
);
}
$data = $this->buffer->read($length);
$readLen = strlen($data);
$this->tellPos += $readLen;
$remaining = $length - $readLen;
if ($remaining) {
$this->pump($remaining);
$data .= $this->buffer->read($remaining);
$this->tellPos += strlen($data) - $readLen;
}
return $data;
}
public function getContents(): string
{
$result = '';
while (!$this->eof()) {
$result .= $this->read(1000000);
}
return $result;
}
/**
* @return mixed
*/
public function getMetadata($key = null)
{
if ($key !== null && !\is_string($key)) {
\trigger_deprecation(
'guzzlehttp/psr7',
'2.11',
'Passing %s to StreamInterface::getMetadata() is deprecated; guzzlehttp/psr7 3.0 requires string|null for $key.',
\get_debug_type($key)
);
}
if (!$key) {
return $this->metadata;
}
return $this->metadata[$key] ?? null;
}
private function pump(int $length): void
{
if ($this->source !== null) {
do {
$data = ($this->source)($length);
if ($data === false || $data === null) {
$this->source = null;
return;
}
$this->buffer->write($data);
$length -= strlen($data);
} while ($length > 0);
}
}
}
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| Exception | Folder | 0755 |
|
|
| AppendStream.php | File | 7.43 KB | 0644 |
|
| BufferStream.php | File | 4.69 KB | 0644 |
|
| CachingStream.php | File | 6.74 KB | 0644 |
|
| DroppingStream.php | File | 1.48 KB | 0644 |
|
| FnStream.php | File | 5.76 KB | 0644 |
|
| Header.php | File | 4.77 KB | 0644 |
|
| HttpFactory.php | File | 3 KB | 0644 |
|
| InflateStream.php | File | 1.38 KB | 0644 |
|
| LazyOpenStream.php | File | 1.06 KB | 0644 |
|
| LimitStream.php | File | 5.11 KB | 0644 |
|
| Message.php | File | 10.1 KB | 0644 |
|
| MessageTrait.php | File | 9.81 KB | 0644 |
|
| MimeType.php | File | 55.82 KB | 0644 |
|
| MultipartStream.php | File | 9.85 KB | 0644 |
|
| NoSeekStream.php | File | 1.12 KB | 0644 |
|
| PumpStream.php | File | 6.88 KB | 0644 |
|
| Query.php | File | 3.95 KB | 0644 |
|
| Request.php | File | 4.79 KB | 0644 |
|
| Response.php | File | 5.49 KB | 0644 |
|
| Rfc3986.php | File | 490 B | 0644 |
|
| Rfc7230.php | File | 3 KB | 0644 |
|
| ServerRequest.php | File | 13.2 KB | 0644 |
|
| Stream.php | File | 8.76 KB | 0644 |
|
| StreamDecoratorTrait.php | File | 4.79 KB | 0644 |
|
| StreamWrapper.php | File | 4.68 KB | 0644 |
|
| UploadedFile.php | File | 4.98 KB | 0644 |
|
| Uri.php | File | 23.44 KB | 0644 |
|
| UriComparator.php | File | 1.24 KB | 0644 |
|
| UriNormalizer.php | File | 8.91 KB | 0644 |
|
| UriResolver.php | File | 8.15 KB | 0644 |
|
| Utils.php | File | 21.66 KB | 0644 |
|