feedwordpress / extend / SimplePie / feedwordpie_file.class.php

feedwordpie_file.class.php in FeedWordPress 2024.0511, at extend/SimplePie/feedwordpie_file.class.php

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1	<?php
2	global $fwp_credentials;
3
4	/** @var array\|null If required, login and password to connect to RSS feed; NULL otherwise. */
5	$fwp_credentials = NULL;
6	/**
7	* Our own variant of WP's SimplePie
8	*
9	* @extends WP_SimplePie_File
10	*/
11	class FeedWordPie_File extends WP_SimplePie_File {
12
13	/**
14	* Timeout.
15	*
16	* @var int How long the connection should stay open in seconds.
17	*
18	* @see WP_SimplePie_File
19	*/
20	public $timeout = 10;
21
22	/**
23	* Class constructor.
24	*
25	* @param string $url URL for the RSS feed.
26	* @param int $timeout Timeout to wait for this feed.
27	* @param int $redirects How many redirects we follow.
28	* @param array\|null $headers List of HTTP headers to send (i,portant for authentication, etc.)
29	* @param string\|null $useragent Identification of the User-Agent making the RSS request.
30	* @param bool $force_fsockopen @deprecated and always ignored
31	*
32	* @uses FeedWordPress::diagnostic()
33	* @uses MyPHP::val()
34	*
35	* @global $feedwordpress
36	* @global $wp_version
37	*/
38	public function __construct( $url, $timeout = 10, $redirects = 5, $headers = null, $useragent = null, $force_fsockopen = false) {
39	global $feedwordpress;
40	global $wp_version;
41
42	if ( $force_fsockopen ) {
43	error_log( "deprecated usage of \$force_fsockopen, ignored" );
44	}
45
46	$source = NULL;
47	if ( !empty( $feedwordpress ) and $feedwordpress->subscribed( $url ) ) :
48	$source = $feedwordpress->subscription( $url );
49	endif;
50
51	$this->url = $url;
52	$this->timeout = $timeout;
53	$this->redirects = $redirects;
54	$this->headers = $headers;
55	$this->useragent = $useragent;
56
57	$this->method = SIMPLEPIE_FILE_SOURCE_REMOTE;
58
59	global $fwp_credentials;
60
61	if ( preg_match( '/^http(s)?:\/\//i', $url ) ) :
62	$args = array( 'timeout' => $this->timeout, 'redirection' => $this->redirects );
63
64	if ( ! empty( $this->headers ) ) :
65	$args['headers'] = $this->headers;
66	endif;
67
68	// Use default FWP user agent unless custom has been specified
69	if ( SIMPLEPIE_USERAGENT != $this->useragent ) :
70	$args['user-agent'] = $this->useragent;
71	else :
72	$args['user-agent'] = apply_filters(
73	'feedwordpress_user_agent',
74	'FeedWordPress/' . FEEDWORDPRESS_VERSION
75	. ' (aggregator:feedwordpress; WordPress/' . $wp_version
76	. ' + ' . SIMPLEPIE_NAME . '/' . SIMPLEPIE_VERSION
77	. '; Allow like Gecko; +http://feedwordpress.radgeek.com/) at '
78	. feedwordpress_display_url( get_bloginfo( 'url' ) ),
79	$this
80	);
81	endif;
82
83	// This is ugly as hell, but communicating up and down the chain
84	// in any other way is difficult.
85	if ( ! is_null( $fwp_credentials ) ) :
86	$args['authentication'] = $fwp_credentials['authentication'];
87	$args['username'] = $fwp_credentials['username'];
88	$args['password'] = $fwp_credentials['password'];
89	elseif ( $source InstanceOf SyndicatedLink ) :
90	$args['authentication'] = $source->authentication_method();
91	$args['username'] = $source->username();
92	$args['password'] = $source->password();
93	endif;
94
95	FeedWordPress::diagnostic( 'updated_feeds:http', "HTTP [$url] &lceil; " . esc_html( MyPHP::val( $args ) ) );
96	$res = wp_remote_request( $url, $args );
97	FeedWordPress::diagnostic( 'updated_feeds:http', "HTTP [$url] &rceil; " . esc_html( MyPHP::val( $res ) ) );
98
99	if ( is_wp_error( $res ) ) :
100	$this->error = 'WP HTTP Error: ' . $res->get_error_message();
101	$this->success = false;
102	else :
103	$this->headers = wp_remote_retrieve_headers( $res );
104	$this->body = wp_remote_retrieve_body( $res );
105	$this->status_code = wp_remote_retrieve_response_code( $res );
106	endif;
107
108	if ( $source InstanceOf SyndicatedLink ) :
109	$source->update_setting( 'link/filesize', strlen( $this->body ) );
110	$source->update_setting( 'link/http status', $this->status_code );
111	$source->save_settings( /reload=/ true );
112	endif;
113
114	/* Do not allow schemes other than http(s)? for the time being.
115	* They are unlikely to be used; and unrestricted use of schemes
116	* allows for user to use an unrestricted file:/// scheme, which
117	* may result in exploits by WordPress users against the web
118	* hosting environment.
119	*/
120	else :
121	$this->error = __( 'FeedWordPress only allows HTTP or HTTPS URL schemes' );
122	$this->success = false;
123	endif;
124
125	/* SimplePie makes a strongly typed check against integers with
126	* this, but WordPress puts a string in. Which causes caching
127	* to break and fall on its ass when SimplePie is getting a 304,
128	* but doesn't realize it because this member is "304" instead.
129	*/
130	$this->status_code = (int) $this->status_code;
131	} /* FeedWordPie_File::__construct () */
132	} /* class FeedWordPie_File () */
133
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