<?php

/*
 * This file is part of Psy Shell.
 *
 * (c) 2012-2023 Justin Hileman
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Psy\Output;

use Symfony\Component\Console\Output\StreamOutput;

/**
 * ProcOutputPager class.
 *
 * A ProcOutputPager instance wraps a regular StreamOutput's stream. Rather
 * than writing directly to the stream, it shells out to a pager process and
 * gives that process the stream as stdout. This means regular *nix commands
 * like `less` and `more` can be used to page large amounts of output.
 */
class ProcOutputPager extends StreamOutput implements OutputPager
{
    private $proc;
    private $pipe;
    private $stream;
    private $cmd;

    /**
     * Constructor.
     *
     * @param StreamOutput $output
     * @param string       $cmd    Pager process command (default: 'less -R -F -X')
     */
    public function __construct(StreamOutput $output, string $cmd = 'less -R -F -X')
    {
        $this->stream = $output->getStream();
        $this->cmd = $cmd;
    }

    /**
     * Writes a message to the output.
     *
     * @param string $message A message to write to the output
     * @param bool   $newline Whether to add a newline or not
     *
     * @throws \RuntimeException When unable to write output (should never happen)
     */
    public function doWrite($message, $newline): void
    {
        $pipe = $this->getPipe();
        if (false === @\fwrite($pipe, $message.($newline ? \PHP_EOL : ''))) {
            // @codeCoverageIgnoreStart
            // should never happen
            $this->close();
            throw new \RuntimeException('Unable to write output');
            // @codeCoverageIgnoreEnd
        }

        \fflush($pipe);
    }

    /**
     * Close the current pager process.
     */
    public function close()
    {
        if (isset($this->pipe)) {
            \fclose($this->pipe);
        }

        if (isset($this->proc)) {
            $exit = \proc_close($this->proc);
            if ($exit !== 0) {
                throw new \RuntimeException('Error closing output stream');
            }
        }

        $this->pipe = null;
        $this->proc = null;
    }

    /**
     * Get a pipe for paging output.
     *
     * If no active pager process exists, fork one and return its input pipe.
     */
    private function getPipe()
    {
        if (!isset($this->pipe) || !isset($this->proc)) {
            $desc = [['pipe', 'r'], $this->stream, \fopen('php://stderr', 'w')];
            $this->proc = \proc_open($this->cmd, $desc, $pipes);

            if (!\is_resource($this->proc)) {
                throw new \RuntimeException('Error opening output stream');
            }

            $this->pipe = $pipes[0];
        }

        return $this->pipe;
    }
}

• [F] OutputPager.php
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• [F] PassthruPager.php
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• [F] ProcOutputPager.php
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• [F] ShellOutput.php
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• [F] Theme.php
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                        Request Example (guzzle)
                        

                        
                            
<?php
                            
 require_once('vendor/autoload.php');
                            
 $client = new \GuzzleHttp\Client();
                            
 $response = $client->request('POST', $base_url. 'v1/generate-token', [
                            
'headers' => [
                            
  'accept' => 'application/json',
                            
  'content-type' => 'application/json',
                            
 ],
                            
'form_params' => [
                            
  'client_id'     => '$client_id',
                            
  'secret_id'     => 'secret_id',
                            
  'env'           => 'env',
                            
  'merchant_id'   => 'merchant_id',
                            
 ],
                            
                            
]);
                            
echo $response->getBody();
                        
                    
                

                    
                        
**Response: SUCCESS (200 OK)**
                        
{
                        
 "message": {
                        
 "success": [
                        
  "Successfully token is generated"
                        
 ]
                        
},
                        
"data": {
                        
 "token":"eyJpdiI6InpkczhjTjhQdVhUL2lKQ0pSUUx6aUE9P
SIsInZhbHVlIjoiVGVBTVBDTXltbjNZcEIvdEJveGpTSno3TU5NRUtn
VkhCZ1pHTFNCUnZGQ2UxMnYxN202cEE1YVRDTEFsc0ZERExoTjdtL0dTL2x
oU3QzeUJJOExiMUx5T0w1L0llUXhTUkU1cWVLWEdEbEplb0dKNXcwbTNRM0
VxdkUwYzZuNFdtNkhMQ0pRZysyNWkvdzBxSlBoSVBSOGFTekNnR2RXNHVtc
G9lMGZOTmNCcm1hR3c5Sk9KTnB4Y3ltZDl6cm90MThrR21Ca3B1azc3bXRi
Q0J6SW96UVo1elNkU1ZqeE05bTcwWGp1MEUxWlJFdnNWTmpSbnVpeW92b2U
4dXZkUGgyb1VmK0luaGdyaFlsVTZlcVpVRnZlTG1DeFF6Ykk2T2h6Z3Jzbn
IyNHpNdHowSE5JdDR0Y0pZT20zUm1XYW8iLCJtYWMiOiJlY2M4NGE1OGUzYz
kzYzk0YzljNmVmNjE0YWI0ZDIwOGI3NDQ2YWEyY2ZhNzc0NzE4ZmY1ZmYyMz

                        IyZmQzNDY1IiwidGFnIjoiIn0=",
                        
},
                        
"type": "success"
                        
}
                    
                

                    
                        
**Response: ERROR (400 FAILED)**
                        
{
                        
 "message": {
                        
 "error": [
                        
  "Invalid credentials."
                        
 ]
                        
},
                        
"data": null,
                        
"type": "error"
                        
}