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/**
 * Feed API: WP_SimplePie_File class
 *
 * @package WordPress
 * @subpackage Feed
 * @since 4.7.0
 */

/**
 * Core class for fetching remote files and reading local files with SimplePie.
 *
 * This uses Core&#039;s HTTP API to make requests, which gives plugins the ability
 * to hook into the process.
 *
 * @since 2.8.0
 */
#[AllowDynamicProperties]
class WP_SimplePie_File extends SimplePie\File {

	/**
	 * Timeout.
	 *
	 * @var int How long the connection should stay open in seconds.
	 */
	public $timeout = 10;

	/**
	 * Constructor.
	 *
	 * @since 2.8.0
	 * @since 3.2.0 Updated to use a PHP5 constructor.
	 * @since 5.6.1 Multiple headers are concatenated into a comma-separated string,
	 *              rather than remaining an array.
	 *
	 * @param string       $url             Remote file URL.
	 * @param int          $timeout         Optional. How long the connection should stay open in seconds.
	 *                                      Default 10.
	 * @param int          $redirects       Optional. The number of allowed redirects. Default 5.
	 * @param string|array $headers         Optional. Array or string of headers to send with the request.
	 *                                      Default null.
	 * @param string       $useragent       Optional. User-agent value sent. Default null.
	 * @param bool         $force_fsockopen Optional. Whether to force opening internet or unix domain socket
	 *                                      connection or not. Default false.
	 */
	public function __construct( $url, $timeout = 10, $redirects = 5, $headers = null, $useragent = null, $force_fsockopen = false ) {
		$this-&gt;url       = $url;
		$this-&gt;timeout   = $timeout;
		$this-&gt;redirects = $redirects;
		$this-&gt;headers   = $headers;
		$this-&gt;useragent = $useragent;

		$this-&gt;method = SimplePie\SimplePie::FILE_SOURCE_REMOTE;

		if ( preg_match( &#039;/^http(s)?:\/\//i&#039;, $url ) ) {
			$args = array(
				&#039;timeout&#039;     =&gt; $this-&gt;timeout,
				&#039;redirection&#039; =&gt; $this-&gt;redirects,
			);

			if ( ! empty( $this-&gt;headers ) ) {
				$args[&#039;headers&#039;] = $this-&gt;headers;
			}

			if ( SimplePie\Misc::get_default_useragent() !== $this-&gt;useragent ) { // Use default WP user agent unless custom has been specified.
				$args[&#039;user-agent&#039;] = $this-&gt;useragent;
			}

			$res = wp_safe_remote_request( $url, $args );

			if ( is_wp_error( $res ) ) {
				$this-&gt;error   = &#039;WP HTTP Error: &#039; . $res-&gt;get_error_message();
				$this-&gt;success = false;

			} else {
				$this-&gt;headers = wp_remote_retrieve_headers( $res );

				if ( $this-&gt;headers instanceof \WpOrg\Requests\Utility\CaseInsensitiveDictionary ) {
					$this-&gt;headers = $this-&gt;headers-&gt;getAll();
				}

				/*
				 * SimplePie expects multiple headers to be stored as a comma-separated string,
				 * but `wp_remote_retrieve_headers()` returns them as an array, so they need
				 * to be converted.
				 *
				 * The only exception to that is the `content-type` header, which should ignore
				 * any previous values and only use the last one.
				 *
				 * @see SimplePie\HTTP\Parser::new_line().
				 */
				foreach ( $this-&gt;headers as $name =&gt; $value ) {
					if ( ! is_array( $value ) ) {
						continue;
					}

					if ( &#039;content-type&#039; === $name ) {
						$this-&gt;headers[ $name ] = array_pop( $value );
					} else {
						$this-&gt;headers[ $name ] = implode( &#039;, &#039;, $value );
					}
				}

				$this-&gt;body        = wp_remote_retrieve_body( $res );
				$this-&gt;status_code = wp_remote_retrieve_response_code( $res );
			}
		} else {
			$this-&gt;error   = &#039;&#039;;
			$this-&gt;success = false;
		}
	}
}
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