ok
Direktori : /home2/selectio/public_html/3-idiots/vendor/nyholm/psr7/src/ |
Current File : //home2/selectio/public_html/3-idiots/vendor/nyholm/psr7/src/Stream.php |
<?php declare(strict_types=1); namespace Nyholm\Psr7; use Psr\Http\Message\StreamInterface; use Symfony\Component\Debug\ErrorHandler as SymfonyLegacyErrorHandler; use Symfony\Component\ErrorHandler\ErrorHandler as SymfonyErrorHandler; /** * @author Michael Dowling and contributors to guzzlehttp/psr7 * @author Tobias Nyholm <tobias.nyholm@gmail.com> * @author Martijn van der Ven <martijn@vanderven.se> * * @final This class should never be extended. See https://github.com/Nyholm/psr7/blob/master/doc/final.md */ class Stream implements StreamInterface { /** @var resource|null A resource reference */ private $stream; /** @var bool */ private $seekable; /** @var bool */ private $readable; /** @var bool */ private $writable; /** @var array|mixed|void|bool|null */ private $uri; /** @var int|null */ private $size; /** @var array Hash of readable and writable stream types */ private const READ_WRITE_HASH = [ 'read' => [ 'r' => true, 'w+' => true, 'r+' => true, 'x+' => true, 'c+' => true, 'rb' => true, 'w+b' => true, 'r+b' => true, 'x+b' => true, 'c+b' => true, 'rt' => true, 'w+t' => true, 'r+t' => true, 'x+t' => true, 'c+t' => true, 'a+' => true, ], 'write' => [ 'w' => true, 'w+' => true, 'rw' => true, 'r+' => true, 'x+' => true, 'c+' => true, 'wb' => true, 'w+b' => true, 'r+b' => true, 'x+b' => true, 'c+b' => true, 'w+t' => true, 'r+t' => true, 'x+t' => true, 'c+t' => true, 'a' => true, 'a+' => true, ], ]; private function __construct() { } /** * Creates a new PSR-7 stream. * * @param string|resource|StreamInterface $body * * @throws \InvalidArgumentException */ public static function create($body = ''): StreamInterface { if ($body instanceof StreamInterface) { return $body; } if (\is_string($body)) { $resource = \fopen('php://temp', 'rw+'); \fwrite($resource, $body); $body = $resource; } if (\is_resource($body)) { $new = new self(); $new->stream = $body; $meta = \stream_get_meta_data($new->stream); $new->seekable = $meta['seekable'] && 0 === \fseek($new->stream, 0, \SEEK_CUR); $new->readable = isset(self::READ_WRITE_HASH['read'][$meta['mode']]); $new->writable = isset(self::READ_WRITE_HASH['write'][$meta['mode']]); return $new; } throw new \InvalidArgumentException('First argument to Stream::create() must be a string, resource or StreamInterface.'); } /** * Closes the stream when the destructed. */ public function __destruct() { $this->close(); } /** * @return string */ public function __toString() { try { if ($this->isSeekable()) { $this->seek(0); } return $this->getContents(); } catch (\Throwable $e) { if (\PHP_VERSION_ID >= 70400) { throw $e; } if (\is_array($errorHandler = \set_error_handler('var_dump'))) { $errorHandler = $errorHandler[0] ?? null; } \restore_error_handler(); if ($e instanceof \Error || $errorHandler instanceof SymfonyErrorHandler || $errorHandler instanceof SymfonyLegacyErrorHandler) { return \trigger_error((string) $e, \E_USER_ERROR); } return ''; } } public function close(): void { if (isset($this->stream)) { if (\is_resource($this->stream)) { \fclose($this->stream); } $this->detach(); } } public function detach() { if (!isset($this->stream)) { return null; } $result = $this->stream; unset($this->stream); $this->size = $this->uri = null; $this->readable = $this->writable = $this->seekable = false; return $result; } private function getUri() { if (false !== $this->uri) { $this->uri = $this->getMetadata('uri') ?? false; } return $this->uri; } public function getSize(): ?int { if (null !== $this->size) { return $this->size; } if (!isset($this->stream)) { return null; } // Clear the stat cache if the stream has a URI if ($uri = $this->getUri()) { \clearstatcache(true, $uri); } $stats = \fstat($this->stream); if (isset($stats['size'])) { $this->size = $stats['size']; return $this->size; } return null; } public function tell(): int { if (!isset($this->stream)) { throw new \RuntimeException('Stream is detached'); } if (false === $result = @\ftell($this->stream)) { throw new \RuntimeException('Unable to determine stream position: ' . (\error_get_last()['message'] ?? '')); } return $result; } public function eof(): bool { return !isset($this->stream) || \feof($this->stream); } public function isSeekable(): bool { return $this->seekable; } public function seek($offset, $whence = \SEEK_SET): void { if (!isset($this->stream)) { throw new \RuntimeException('Stream is detached'); } if (!$this->seekable) { throw new \RuntimeException('Stream is not seekable'); } if (-1 === \fseek($this->stream, $offset, $whence)) { throw new \RuntimeException('Unable to seek to stream position "' . $offset . '" with whence ' . \var_export($whence, true)); } } public function rewind(): void { $this->seek(0); } public function isWritable(): bool { return $this->writable; } public function write($string): int { if (!isset($this->stream)) { throw new \RuntimeException('Stream is detached'); } if (!$this->writable) { throw new \RuntimeException('Cannot write to a non-writable stream'); } // We can't know the size after writing anything $this->size = null; if (false === $result = @\fwrite($this->stream, $string)) { throw new \RuntimeException('Unable to write to stream: ' . (\error_get_last()['message'] ?? '')); } return $result; } public function isReadable(): bool { return $this->readable; } public function read($length): string { if (!isset($this->stream)) { throw new \RuntimeException('Stream is detached'); } if (!$this->readable) { throw new \RuntimeException('Cannot read from non-readable stream'); } if (false === $result = @\fread($this->stream, $length)) { throw new \RuntimeException('Unable to read from stream: ' . (\error_get_last()['message'] ?? '')); } return $result; } public function getContents(): string { if (!isset($this->stream)) { throw new \RuntimeException('Stream is detached'); } if (false === $contents = @\stream_get_contents($this->stream)) { throw new \RuntimeException('Unable to read stream contents: ' . (\error_get_last()['message'] ?? '')); } return $contents; } /** * @return mixed */ public function getMetadata($key = null) { if (!isset($this->stream)) { return $key ? null : []; } $meta = \stream_get_meta_data($this->stream); if (null === $key) { return $meta; } return $meta[$key] ?? null; } }