WP_SimplePie_File

Core class for fetching remote files and reading local files with SimplePie.


Description Description

This uses Core’s HTTP API to make requests, which gives plugins the ability to hook into the process.

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Source Source

File: wp-includes/class-wp-simplepie-file.php

class WP_SimplePie_File extends SimplePie_File {

	/**
	 * 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->url       = $url;
		$this->timeout   = $timeout;
		$this->redirects = $redirects;
		$this->headers   = $headers;
		$this->useragent = $useragent;

		$this->method = SIMPLEPIE_FILE_SOURCE_REMOTE;

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

			if ( ! empty( $this->headers ) ) {
				$args['headers'] = $this->headers;
			}

			if ( SIMPLEPIE_USERAGENT != $this->useragent ) { // Use default WP user agent unless custom has been specified.
				$args['user-agent'] = $this->useragent;
			}

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

			if ( is_wp_error( $res ) ) {
				$this->error   = 'WP HTTP Error: ' . $res->get_error_message();
				$this->success = false;

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

				/*
				 * 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->headers as $name => $value ) {
					if ( ! is_array( $value ) ) {
						continue;
					}

					if ( 'content-type' === $name ) {
						$this->headers[ $name ] = array_pop( $value );
					} else {
						$this->headers[ $name ] = implode( ', ', $value );
					}
				}

				$this->body        = wp_remote_retrieve_body( $res );
				$this->status_code = wp_remote_retrieve_response_code( $res );
			}
		} else {
			$this->error   = '';
			$this->success = false;
		}
	}
}

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Changelog
Version Description
2.8.0 Introduced.

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