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<?php declare(strict_types=1);
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/*
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 * This file is part of PHPUnit.
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 *
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 * (c) Sebastian Bergmann <sebastian@phpunit.de>
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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namespace PHPUnit\Util;
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use const ENT_COMPAT;
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use const ENT_SUBSTITUTE;
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use const PHP_SAPI;
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use function assert;
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use function count;
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use function dirname;
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use function explode;
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use function fclose;
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use function fopen;
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use function fsockopen;
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use function fwrite;
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use function htmlspecialchars;
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use function is_resource;
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use function is_string;
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use function sprintf;
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use function str_replace;
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use function strncmp;
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use function strpos;
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/**
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 * @internal This class is not covered by the backward compatibility promise for PHPUnit
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 */
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class Printer
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{
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    /**
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     * @psalm-var closed-resource|resource
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     */
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    private $stream;
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    /**
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     * @var bool
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     */
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    private $isPhpStream;
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    /**
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     * @param null|resource|string $out
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     *
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     * @throws Exception
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     */
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    public function __construct($out = null)
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    {
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        if (is_resource($out)) {
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            $this->stream = $out;
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            return;
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        }
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        if (!is_string($out)) {
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            return;
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        }
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        if (strpos($out, 'socket://') === 0) {
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            $tmp = explode(':', str_replace('socket://', '', $out));
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            if (count($tmp) !== 2) {
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                throw new Exception(
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                    sprintf(
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                        '"%s" does not match "socket://hostname:port" format',
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                        $out
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                    )
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                );
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            }
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            $this->stream = fsockopen($tmp[0], (int) $tmp[1]);
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            return;
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        }
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        if (strpos($out, 'php://') === false && !Filesystem::createDirectory(dirname($out))) {
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            throw new Exception(
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                sprintf(
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                    'Directory "%s" was not created',
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                    dirname($out)
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                )
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            );
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        }
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        $this->stream      = fopen($out, 'wb');
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        $this->isPhpStream = strncmp($out, 'php://', 6) !== 0;
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    }
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    public function write(string $buffer): void
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    {
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        if ($this->stream) {
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            assert(is_resource($this->stream));
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            fwrite($this->stream, $buffer);
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        } else {
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            if (PHP_SAPI !== 'cli' && PHP_SAPI !== 'phpdbg') {
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                $buffer = htmlspecialchars($buffer, ENT_COMPAT | ENT_SUBSTITUTE);
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            }
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            print $buffer;
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        }
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    }
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    public function flush(): void
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    {
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        if ($this->stream && $this->isPhpStream) {
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            assert(is_resource($this->stream));
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            fclose($this->stream);
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        }
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    }
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}