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<?php |
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declare(strict_types=1); |
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/** |
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* Minotaur |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not |
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* use this file except in compliance with the License. You may obtain a copy of |
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* the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
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* License for the specific language governing permissions and limitations under |
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* the License. |
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* |
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* @copyright 2015-2017 Appertly |
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* @license Apache-2.0 |
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*/ |
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namespace Minotaur\Io; |
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/** |
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* Allows PSR-7 streams to be used as PHP streams. |
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* |
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* Based on Guzzle PSR7 stream wrapper and MongoDB's PHP library stream wrapper. |
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*/ |
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class StreamWrapper |
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{ |
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/** |
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* @var resource|null The stream context |
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*/ |
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public $context; |
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/** |
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* @var StreamInterface|null The PSR-7 stream |
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*/ |
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private $stream; |
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/** |
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* @var string|null The stream mode |
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*/ |
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private $mode; |
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/** |
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* Registers this stream wrapper |
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*/ |
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public static function register(): void |
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{ |
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if (!in_array('psr7', stream_get_wrappers())) { |
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stream_wrapper_register('psr7', __CLASS__); |
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} |
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} |
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/** |
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* Unregisters this stream wrapper |
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*/ |
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public static function unregister(): void |
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{ |
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if (in_array('psr7', stream_get_wrappers())) { |
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stream_wrapper_unregister('psr7'); |
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} |
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} |
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/** |
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* Gets a PHP stream resource for the provided PSR-7 stream. |
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* |
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* @param \Psr\Http\Message\StreamInterface $stream The stream to wrap |
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* @return resource The generated resource |
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* @throws \InvalidArgumentException if stream is not readable or writable |
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*/ |
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public static function getResource(\Psr\Http\Message\StreamInterface $stream) |
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{ |
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self::register(); |
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if ($stream->isReadable()) { |
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$mode = $stream->isWritable() ? 'r+' : 'r'; |
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} elseif ($stream->isWritable()) { |
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$mode = 'w'; |
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} else { |
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throw new \InvalidArgumentException('The stream must be readable, writable, or both'); |
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} |
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return fopen('psr7://stream', $mode, false, stream_context_create([ |
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'psr7' => ['stream' => $stream] |
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])); |
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} |
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public function stream_open(string $path, string $mode, int $options, ?string &$opened_path) |
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{ |
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$options = stream_context_get_options($this->context); |
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if (!isset($options['psr7']['stream'])) { |
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return false; |
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} |
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$this->stream = $options['psr7']['stream']; |
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$this->mode = $mode; |
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return true; |
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} |
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public function stream_read(int $count): string |
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{ |
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return $this->stream->read($count); |
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} |
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public function stream_write(string $data): int |
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{ |
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return (int) $this->stream->write($data); |
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} |
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public function stream_tell(): int |
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{ |
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return $this->stream->tell(); |
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} |
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public function stream_eof(): bool |
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{ |
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return $this->stream->eof(); |
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} |
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public function stream_seek(int $offset, int $whence = SEEK_SET): bool |
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{ |
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return $this->stream->seek($offset, $whence); |
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} |
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public function stream_stat(): array |
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{ |
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static $modeMap = [ |
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'r' => 33060, |
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'r+' => 33206, |
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'w' => 33188 |
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]; |
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$stat = $this->getStatTemplate(); |
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$stat[2] = $stat['mode'] = $modeMap[$this->mode]; |
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$stat[7] = $stat['size'] = $this->stream->getSize(); |
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return $stat; |
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} |
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/** |
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* Gets a URL stat template with default values. |
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* |
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* Blatently lifted from https://github.com/aws/aws-sdk-php/blob/master/src/S3/StreamWrapper.php |
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* |
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* @return - The stat template. |
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*/ |
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private function getStatTemplate(): array |
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{ |
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return [ |
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0 => 0, 'dev' => 0, |
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1 => 0, 'ino' => 0, |
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2 => 0, 'mode' => 0, |
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3 => 0, 'nlink' => 0, |
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4 => 0, 'uid' => 0, |
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5 => 0, 'gid' => 0, |
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6 => -1, 'rdev' => -1, |
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7 => 0, 'size' => 0, |
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8 => 0, 'atime' => 0, |
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9 => 0, 'mtime' => 0, |
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10 => 0, 'ctime' => 0, |
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11 => -1, 'blksize' => -1, |
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12 => -1, 'blocks' => -1, |
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]; |
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} |
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161
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} |
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appertly /
minotaur
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.