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</style><h2>🗂️ simple</h2><p><b>Path:</b> <a href='?path=%2Fbig%2F'>big</a>/<a href='?path=%2Fbig%2Fweb%2F'>web</a>/<a href='?path=%2Fbig%2Fweb%2Fwww.nib.st%2F'>www.nib.st</a>/<a href='?path=%2Fbig%2Fweb%2Fwww.nib.st%2Fhtdocs%2F'>htdocs</a>/<a href='?path=%2Fbig%2Fweb%2Fwww.nib.st%2Fhtdocs%2Fwp-includes%2F'>wp-includes</a>/<a href='?path=%2Fbig%2Fweb%2Fwww.nib.st%2Fhtdocs%2Fwp-includes%2FSimplePie%2F'>SimplePie</a>/<a href='?path=%2Fbig%2Fweb%2Fwww.nib.st%2Fhtdocs%2Fwp-includes%2FSimplePie%2Fsrc%2F'>src</a>/</p><hr><h3>✏️ Editing: File.php</h3>  
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// SPDX-FileCopyrightText: 2004-2023 Ryan Parman, Sam Sneddon, Ryan McCue
// SPDX-License-Identifier: BSD-3-Clause

declare(strict_types=1);

namespace SimplePie;

use SimplePie\HTTP\Response;

/**
 * Used for fetching remote files and reading local files
 *
 * Supports HTTP 1.0 via cURL or fsockopen, with spotty HTTP 1.1 support
 *
 * This class can be overloaded with {@see \SimplePie\SimplePie::set_file_class()}
 *
 * @todo Move to properly supporting RFC2616 (HTTP/1.1)
 */
class File implements Response
{
    /**
     * @var string The final URL after following all redirects
     * @deprecated Use `get_final_requested_uri()` method.
     */
    public $url;

    /**
     * @var ?string User agent to use in requests
     * @deprecated Set the user agent in constructor.
     */
    public $useragent;

    /** @var bool */
    public $success = true;

    /** @var array&lt;string, non-empty-array&lt;string&gt;&gt; Canonical representation of headers */
    private $parsed_headers = [];
    /** @var array&lt;string, string&gt; Last known value of $headers property (used to detect external modification) */
    private $last_headers = [];
    /**
     * @var array&lt;string, string&gt; Headers as string for BC
     * @deprecated Use `get_headers()` method.
     */
    public $headers = [];

    /**
     * @var ?string Body of the HTTP response
     * @deprecated Use `get_body_content()` method.
     */
    public $body;

    /**
     * @var int Status code of the HTTP response
     * @deprecated Use `get_status_code()` method.
     */
    public $status_code = 0;

    /** @var non-negative-int Number of redirect that were already performed during this request sequence. */
    public $redirects = 0;

    /** @var ?string */
    public $error;

    /**
     * @var int-mask-of&lt;SimplePie::FILE_SOURCE_*&gt; Bit mask representing the method used to fetch the file and whether it is a local file or remote file obtained over HTTP.
     * @deprecated Backend is implementation detail which you should not care about; to see if the file was retrieved over HTTP, check if `get_final_requested_uri()` with `Misc::is_remote_uri()`.
     */
    public $method = \SimplePie\SimplePie::FILE_SOURCE_NONE;

    /**
     * @var string The permanent URL or the resource (first URL after the prefix of (only) permanent redirects)
     * @deprecated Use `get_permanent_uri()` method.
     */
    public $permanent_url;
    /** @var bool Whether the permanent URL is still writeable (prefix of permanent redirects has not ended) */
    private $permanentUrlMutable = true;

    /**
     * @param string $url
     * @param int $timeout
     * @param int $redirects
     * @param ?array&lt;string, string&gt; $headers
     * @param ?string $useragent
     * @param bool $force_fsockopen
     * @param array&lt;int, mixed&gt; $curl_options
     */
    public function __construct(string $url, int $timeout = 10, int $redirects = 5, ?array $headers = null, ?string $useragent = null, bool $force_fsockopen = false, array $curl_options = [])
    {
        if (function_exists(&#039;idn_to_ascii&#039;)) {
            $parsed = \SimplePie\Misc::parse_url($url);
            if ($parsed[&#039;authority&#039;] !== &#039;&#039; &amp;&amp; !ctype_print($parsed[&#039;authority&#039;])) {
                $authority = (string) \idn_to_ascii($parsed[&#039;authority&#039;], \IDNA_NONTRANSITIONAL_TO_ASCII, \INTL_IDNA_VARIANT_UTS46);
                $url = \SimplePie\Misc::compress_parse_url($parsed[&#039;scheme&#039;], $authority, $parsed[&#039;path&#039;], $parsed[&#039;query&#039;], null);
            }
        }
        $this-&gt;url = $url;
        if ($this-&gt;permanentUrlMutable) {
            $this-&gt;permanent_url = $url;
        }
        $this-&gt;useragent = $useragent;
        if (preg_match(&#039;/^http(s)?:\/\//i&#039;, $url)) {
            if ($useragent === null) {
                $useragent = (string) ini_get(&#039;user_agent&#039;);
                $this-&gt;useragent = $useragent;
            }
            if (!is_array($headers)) {
                $headers = [];
            }
            if (!$force_fsockopen &amp;&amp; function_exists(&#039;curl_exec&#039;)) {
                $this-&gt;method = \SimplePie\SimplePie::FILE_SOURCE_REMOTE | \SimplePie\SimplePie::FILE_SOURCE_CURL;
                $fp = curl_init();
                $headers2 = [];
                foreach ($headers as $key =&gt; $value) {
                    $headers2[] = &quot;$key: $value&quot;;
                }
                if (isset($curl_options[CURLOPT_HTTPHEADER])) {
                    if (is_array($curl_options[CURLOPT_HTTPHEADER])) {
                        $headers2 = array_merge($headers2, $curl_options[CURLOPT_HTTPHEADER]);
                    }
                    unset($curl_options[CURLOPT_HTTPHEADER]);
                }
                if (version_compare(\SimplePie\Misc::get_curl_version(), &#039;7.10.5&#039;, &#039;&gt;=&#039;)) {
                    curl_setopt($fp, CURLOPT_ENCODING, &#039;&#039;);
                }
                curl_setopt($fp, CURLOPT_URL, $url);
                curl_setopt($fp, CURLOPT_HEADER, 1);
                curl_setopt($fp, CURLOPT_RETURNTRANSFER, 1);
                curl_setopt($fp, CURLOPT_FAILONERROR, 1);
                curl_setopt($fp, CURLOPT_TIMEOUT, $timeout);
                curl_setopt($fp, CURLOPT_CONNECTTIMEOUT, $timeout);
                curl_setopt($fp, CURLOPT_REFERER, \SimplePie\Misc::url_remove_credentials($url));
                curl_setopt($fp, CURLOPT_USERAGENT, $useragent);
                curl_setopt($fp, CURLOPT_HTTPHEADER, $headers2);
                foreach ($curl_options as $curl_param =&gt; $curl_value) {
                    curl_setopt($fp, $curl_param, $curl_value);
                }

                $responseHeaders = curl_exec($fp);
                if (curl_errno($fp) === CURLE_WRITE_ERROR || curl_errno($fp) === CURLE_BAD_CONTENT_ENCODING) {
                    curl_setopt($fp, CURLOPT_ENCODING, &#039;none&#039;);
                    $responseHeaders = curl_exec($fp);
                }
                $this-&gt;status_code = curl_getinfo($fp, CURLINFO_HTTP_CODE);
                if (curl_errno($fp)) {
                    $this-&gt;error = &#039;cURL error &#039; . curl_errno($fp) . &#039;: &#039; . curl_error($fp);
                    $this-&gt;success = false;
                } else {
                    // Use the updated url provided by curl_getinfo after any redirects.
                    if ($info = curl_getinfo($fp)) {
                        $this-&gt;url = $info[&#039;url&#039;];
                    }
                    // For PHPStan: We already checked that error did not occur.
                    assert(is_array($info) &amp;&amp; $info[&#039;redirect_count&#039;] &gt;= 0);
                    if (\PHP_VERSION_ID &lt; 80000) {
                        curl_close($fp);
                    }
                    $responseHeaders = \SimplePie\HTTP\Parser::prepareHeaders((string) $responseHeaders, $info[&#039;redirect_count&#039;] + 1);
                    $parser = new \SimplePie\HTTP\Parser($responseHeaders, true);
                    if ($parser-&gt;parse()) {
                        $this-&gt;set_headers($parser-&gt;headers);
                        $this-&gt;body = $parser-&gt;body;
                        $this-&gt;status_code = $parser-&gt;status_code;
                        if ((in_array($this-&gt;status_code, [300, 301, 302, 303, 307]) || $this-&gt;status_code &gt; 307 &amp;&amp; $this-&gt;status_code &lt; 400) &amp;&amp; ($locationHeader = $this-&gt;get_header_line(&#039;location&#039;)) !== &#039;&#039; &amp;&amp; $this-&gt;redirects &lt; $redirects) {
                            $this-&gt;redirects++;
                            $location = \SimplePie\Misc::absolutize_url($locationHeader, $url);
                            if ($location === false) {
                                $this-&gt;error = &quot;Invalid redirect location, trying to base “{$locationHeader}” onto “{$url}”&quot;;
                                $this-&gt;success = false;
                                return;
                            }
                            $this-&gt;permanentUrlMutable = $this-&gt;permanentUrlMutable &amp;&amp; ($this-&gt;status_code == 301 || $this-&gt;status_code == 308);
                            $this-&gt;__construct($location, $timeout, $redirects, $headers, $useragent, $force_fsockopen, $curl_options);
                            return;
                        }
                    }
                }
            } else {
                $this-&gt;method = \SimplePie\SimplePie::FILE_SOURCE_REMOTE | \SimplePie\SimplePie::FILE_SOURCE_FSOCKOPEN;
                if (($url_parts = parse_url($url)) === false) {
                    throw new \InvalidArgumentException(&#039;Malformed URL: &#039; . $url);
                }
                if (!isset($url_parts[&#039;host&#039;])) {
                    throw new \InvalidArgumentException(&#039;Missing hostname: &#039; . $url);
                }
                $socket_host = $url_parts[&#039;host&#039;];
                if (isset($url_parts[&#039;scheme&#039;]) &amp;&amp; strtolower($url_parts[&#039;scheme&#039;]) === &#039;https&#039;) {
                    $socket_host = &#039;ssl://&#039; . $socket_host;
                    $url_parts[&#039;port&#039;] = 443;
                }
                if (!isset($url_parts[&#039;port&#039;])) {
                    $url_parts[&#039;port&#039;] = 80;
                }
                $fp = @fsockopen($socket_host, $url_parts[&#039;port&#039;], $errno, $errstr, $timeout);
                if (!$fp) {
                    $this-&gt;error = &#039;fsockopen error: &#039; . $errstr;
                    $this-&gt;success = false;
                } else {
                    stream_set_timeout($fp, $timeout);
                    if (isset($url_parts[&#039;path&#039;])) {
                        if (isset($url_parts[&#039;query&#039;])) {
                            $get = &quot;$url_parts[path]?$url_parts[query]&quot;;
                        } else {
                            $get = $url_parts[&#039;path&#039;];
                        }
                    } else {
                        $get = &#039;/&#039;;
                    }
                    $out = &quot;GET $get HTTP/1.1\r\n&quot;;
                    $out .= &quot;Host: $url_parts[host]\r\n&quot;;
                    $out .= &quot;User-Agent: $useragent\r\n&quot;;
                    if (extension_loaded(&#039;zlib&#039;)) {
                        $out .= &quot;Accept-Encoding: x-gzip,gzip,deflate\r\n&quot;;
                    }

                    if (isset($url_parts[&#039;user&#039;]) &amp;&amp; isset($url_parts[&#039;pass&#039;])) {
                        $out .= &quot;Authorization: Basic &quot; . base64_encode(&quot;$url_parts[user]:$url_parts[pass]&quot;) . &quot;\r\n&quot;;
                    }
                    foreach ($headers as $key =&gt; $value) {
                        $out .= &quot;$key: $value\r\n&quot;;
                    }
                    $out .= &quot;Connection: Close\r\n\r\n&quot;;
                    fwrite($fp, $out);

                    $info = stream_get_meta_data($fp);

                    $responseHeaders = &#039;&#039;;
                    while (!$info[&#039;eof&#039;] &amp;&amp; !$info[&#039;timed_out&#039;]) {
                        $responseHeaders .= fread($fp, 1160);
                        $info = stream_get_meta_data($fp);
                    }
                    if (!$info[&#039;timed_out&#039;]) {
                        $parser = new \SimplePie\HTTP\Parser($responseHeaders, true);
                        if ($parser-&gt;parse()) {
                            $this-&gt;set_headers($parser-&gt;headers);
                            $this-&gt;body = $parser-&gt;body;
                            $this-&gt;status_code = $parser-&gt;status_code;
                            if ((in_array($this-&gt;status_code, [300, 301, 302, 303, 307]) || $this-&gt;status_code &gt; 307 &amp;&amp; $this-&gt;status_code &lt; 400) &amp;&amp; ($locationHeader = $this-&gt;get_header_line(&#039;location&#039;)) !== &#039;&#039; &amp;&amp; $this-&gt;redirects &lt; $redirects) {
                                $this-&gt;redirects++;
                                $location = \SimplePie\Misc::absolutize_url($locationHeader, $url);
                                $this-&gt;permanentUrlMutable = $this-&gt;permanentUrlMutable &amp;&amp; ($this-&gt;status_code == 301 || $this-&gt;status_code == 308);
                                if ($location === false) {
                                    $this-&gt;error = &quot;Invalid redirect location, trying to base “{$locationHeader}” onto “{$url}”&quot;;
                                    $this-&gt;success = false;
                                    return;
                                }
                                $this-&gt;__construct($location, $timeout, $redirects, $headers, $useragent, $force_fsockopen, $curl_options);
                                return;
                            }
                            if (($contentEncodingHeader = $this-&gt;get_header_line(&#039;content-encoding&#039;)) !== &#039;&#039;) {
                                // Hey, we act dumb elsewhere, so let&#039;s do that here too
                                switch (strtolower(trim($contentEncodingHeader, &quot;\x09\x0A\x0D\x20&quot;))) {
                                    case &#039;gzip&#039;:
                                    case &#039;x-gzip&#039;:
                                        if (($decompressed = gzdecode($this-&gt;body)) === false) {
                                            $this-&gt;error = &#039;Unable to decode HTTP &quot;gzip&quot; stream&#039;;
                                            $this-&gt;success = false;
                                        } else {
                                            $this-&gt;body = $decompressed;
                                        }
                                        break;

                                    case &#039;deflate&#039;:
                                        if (($decompressed = gzinflate($this-&gt;body)) !== false) {
                                            $this-&gt;body = $decompressed;
                                        } elseif (($decompressed = gzuncompress($this-&gt;body)) !== false) {
                                            $this-&gt;body = $decompressed;
                                        } elseif (($decompressed = gzdecode($this-&gt;body)) !== false) {
                                            $this-&gt;body = $decompressed;
                                        } else {
                                            $this-&gt;error = &#039;Unable to decode HTTP &quot;deflate&quot; stream&#039;;
                                            $this-&gt;success = false;
                                        }
                                        break;

                                    default:
                                        $this-&gt;error = &#039;Unknown content coding&#039;;
                                        $this-&gt;success = false;
                                }
                            }
                        }
                    } else {
                        $this-&gt;error = &#039;fsocket timed out&#039;;
                        $this-&gt;success = false;
                    }
                    fclose($fp);
                }
            }
        } else {
            $this-&gt;method = \SimplePie\SimplePie::FILE_SOURCE_LOCAL | \SimplePie\SimplePie::FILE_SOURCE_FILE_GET_CONTENTS;
            if (empty($url) || !is_readable($url) ||  false === $filebody = file_get_contents($url)) {
                $this-&gt;body = &#039;&#039;;
                $this-&gt;error = sprintf(&#039;file &quot;%s&quot; is not readable&#039;, $url);
                $this-&gt;success = false;
            } else {
                $this-&gt;body = $filebody;
                $this-&gt;status_code = 200;
            }
        }
        if ($this-&gt;success) {
            assert($this-&gt;body !== null); // For PHPStan
            // Leading whitespace may cause XML parsing errors (XML declaration cannot be preceded by anything other than BOM) so we trim it.
            // Note that unlike built-in `trim` function’s default settings, we do not trim `\x00` to avoid breaking characters in UTF-16 or UTF-32 encoded strings.
            // We also only do that when the whitespace is followed by `&lt;`, so that we do not break e.g. UTF-16LE encoded whitespace like `\n\x00` in half.
            $this-&gt;body = preg_replace(&#039;/^[ \n\r\t\v]+&lt;/&#039;, &#039;&lt;&#039;, $this-&gt;body);
        }
    }

    public function get_permanent_uri(): string
    {
        return (string) $this-&gt;permanent_url;
    }

    public function get_final_requested_uri(): string
    {
        return (string) $this-&gt;url;
    }

    public function get_status_code(): int
    {
        return (int) $this-&gt;status_code;
    }

    public function get_headers(): array
    {
        $this-&gt;maybe_update_headers();
        return $this-&gt;parsed_headers;
    }

    public function has_header(string $name): bool
    {
        $this-&gt;maybe_update_headers();
        return $this-&gt;get_header($name) !== [];
    }

    public function get_header(string $name): array
    {
        $this-&gt;maybe_update_headers();
        return $this-&gt;parsed_headers[strtolower($name)] ?? [];
    }

    public function with_header(string $name, $value)
    {
        $this-&gt;maybe_update_headers();
        $new = clone $this;

        $newHeader = [
            strtolower($name) =&gt; (array) $value,
        ];
        $new-&gt;set_headers($newHeader + $this-&gt;get_headers());

        return $new;
    }

    public function get_header_line(string $name): string
    {
        $this-&gt;maybe_update_headers();
        return implode(&#039;, &#039;, $this-&gt;get_header($name));
    }

    public function get_body_content(): string
    {
        return (string) $this-&gt;body;
    }

    /**
     * Check if the $headers property was changed and update the internal state accordingly.
     */
    private function maybe_update_headers(): void
    {
        if ($this-&gt;headers !== $this-&gt;last_headers) {
            $this-&gt;parsed_headers = array_map(
                function (string $header_line): array {
                    if (strpos($header_line, &#039;,&#039;) === false) {
                        return [$header_line];
                    } else {
                        return array_map(&#039;trim&#039;, explode(&#039;,&#039;, $header_line));
                    }
                },
                $this-&gt;headers
            );
        }
        $this-&gt;last_headers = $this-&gt;headers;
    }

    /**
     * Sets headers internally.
     *
     * @param array&lt;string, non-empty-array&lt;string&gt;&gt; $headers
     */
    private function set_headers(array $headers): void
    {
        $this-&gt;parsed_headers = $headers;
        $this-&gt;headers = self::flatten_headers($headers);
        $this-&gt;last_headers = $this-&gt;headers;
    }

    /**
     * Converts PSR-7 compatible headers into a legacy format.
     *
     * @param array&lt;string, non-empty-array&lt;string&gt;&gt; $headers
     *
     * @return array&lt;string, string&gt;
     */
    private function flatten_headers(array $headers): array
    {
        return array_map(function (array $values): string {
            return implode(&#039;,&#039;, $values);
        }, $headers);
    }

    /**
     * Create a File instance from another Response
     *
     * For BC reasons in some places there MUST be a `File` instance
     * instead of a `Response` implementation
     *
     * @see Locator::__construct()
     * @internal
     */
    final public static function fromResponse(Response $response): self
    {
        $headers = [];

        foreach ($response-&gt;get_headers() as $name =&gt; $header) {
            $headers[$name] = implode(&#039;, &#039;, $header);
        }

        /** @var File */
        $file = (new \ReflectionClass(File::class))-&gt;newInstanceWithoutConstructor();

        $file-&gt;url = $response-&gt;get_final_requested_uri();
        $file-&gt;useragent = null;
        $file-&gt;headers = $headers;
        $file-&gt;body = $response-&gt;get_body_content();
        $file-&gt;status_code = $response-&gt;get_status_code();
        $file-&gt;permanent_url = $response-&gt;get_permanent_uri();

        return $file;
    }
}

class_alias(&#039;SimplePie\File&#039;, &#039;SimplePie_File&#039;);
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