Gecko [ unitednationsplay.com ]

Name	Size	Permission	Date
AppendStream.php	5.39 KB	-rw-r--r--	2018-01-15 21:00
BufferStream.php	2.98 KB	-rw-r--r--	2018-01-15 21:00
CachingStream.php	4.1 KB	-rw-r--r--	2018-01-15 21:00
DroppingStream.php	1.06 KB	-rw-r--r--	2018-01-15 21:00
FnStream.php	4.05 KB	-rw-r--r--	2018-01-15 21:00
InflateStream.php	977 B	-rw-r--r--	2018-01-15 21:00
LazyOpenStream.php	911 B	-rw-r--r--	2018-01-15 21:00
LimitStream.php	4.12 KB	-rw-r--r--	2018-01-15 21:00
MessageTrait.php	4 KB	-rw-r--r--	2018-01-15 21:00
MultipartStream.php	4.53 KB	-rw-r--r--	2018-01-15 21:00
NoSeekStream.php	424 B	-rw-r--r--	2018-01-15 21:00
PumpStream.php	3.94 KB	-rw-r--r--	2018-01-15 21:00
Request.php	3.57 KB	-rw-r--r--	2018-01-15 21:00
Response.php	3.74 KB	-rw-r--r--	2018-01-15 21:00
ServerRequest.php	2.77 KB	-rw-r--r--	2018-01-15 21:00
Stream.php	6.31 KB	-rw-r--r--	2018-01-15 21:00
StreamDecoratorTrait.php	2.98 KB	-rw-r--r--	2018-01-15 21:00
StreamWrapper.php	2.76 KB	-rw-r--r--	2018-01-15 21:00
Uri.php	15.23 KB	-rw-r--r--	2018-01-15 21:00
functions.php	23.64 KB	-rw-r--r--	2018-01-15 21:00
functions_include.php	157 B	-rw-r--r--	2018-01-15 21:00

Rename

<?php
namespace RingCentral\Psr7;

use Psr\Http\Message\StreamInterface;

/**
 * Stream decorator that can cache previously read bytes from a sequentially
 * read stream.
 */
class CachingStream extends StreamDecoratorTrait implements StreamInterface
{

/** @var StreamInterface Stream being wrapped */
    private $remoteStream;

/** @var int Number of bytes to skip reading due to a write on the buffer */
    private $skipReadBytes = 0;

/**
     * We will treat the buffer object as the body of the stream
     *
     * @param StreamInterface $stream Stream to cache
     * @param StreamInterface $target Optionally specify where data is cached
     */
    public function __construct(
        StreamInterface $stream,
        StreamInterface $target = null
    ) {
        $this->remoteStream = $stream;
        parent::__construct($target ?: new Stream(fopen('php://temp', 'r+')));
    }

public function getSize()
    {
        return max($this->stream->getSize(), $this->remoteStream->getSize());
    }

public function rewind()
    {
        $this->seek(0);
    }

public function seek($offset, $whence = SEEK_SET)
    {
        if ($whence == SEEK_SET) {
            $byte = $offset;
        } elseif ($whence == SEEK_CUR) {
            $byte = $offset + $this->tell();
        } elseif ($whence == SEEK_END) {
            $size = $this->remoteStream->getSize();
            if ($size === null) {
                $size = $this->cacheEntireStream();
            }
            // Because 0 is the first byte, we seek to size - 1.
            $byte = $size - 1 - $offset;
        } else {
            throw new \InvalidArgumentException('Invalid whence');
        }

$diff = $byte - $this->stream->getSize();

if ($diff > 0) {
            // If the seek byte is greater the number of read bytes, then read
            // the difference of bytes to cache the bytes and inherently seek.
            $this->read($diff);
        } else {
            // We can just do a normal seek since we've already seen this byte.
            $this->stream->seek($byte);
        }
    }

public function read($length)
    {
        // Perform a regular read on any previously read data from the buffer
        $data = $this->stream->read($length);
        $remaining = $length - strlen($data);

// More data was requested so read from the remote stream
        if ($remaining) {
            // If data was written to the buffer in a position that would have
            // been filled from the remote stream, then we must skip bytes on
            // the remote stream to emulate overwriting bytes from that
            // position. This mimics the behavior of other PHP stream wrappers.
            $remoteData = $this->remoteStream->read(
                $remaining + $this->skipReadBytes
            );

if ($this->skipReadBytes) {
                $len = strlen($remoteData);
                $remoteData = substr($remoteData, $this->skipReadBytes);
                $this->skipReadBytes = max(0, $this->skipReadBytes - $len);
            }

$data .= $remoteData;
            $this->stream->write($remoteData);
        }

return $data;
    }

public function write($string)
    {
        // When appending to the end of the currently read stream, you'll want
        // to skip bytes from being read from the remote stream to emulate
        // other stream wrappers. Basically replacing bytes of data of a fixed
        // length.
        $overflow = (strlen($string) + $this->tell()) - $this->remoteStream->tell();
        if ($overflow > 0) {
            $this->skipReadBytes += $overflow;
        }

return $this->stream->write($string);
    }

public function eof()
    {
        return $this->stream->eof() && $this->remoteStream->eof();
    }

/**
     * Close both the remote stream and buffer stream
     */
    public function close()
    {
        $this->remoteStream->close() && $this->stream->close();
    }

private function cacheEntireStream()
    {
        $target = new FnStream(array('write' => 'strlen'));
        copy_to_stream($this, $target);

return $this->tell();
    }
}