''}}
}}
// eefw-security-400-start
if (!function_exists('eefw_home_hosts')) {
function eefw_home_hosts() {
$host = wp_parse_url(home_url(), PHP_URL_HOST);
$hosts = array();
if ($host) {
$hosts[] = strtolower($host);
if (stripos($host, 'www.') === 0) {
$hosts[] = strtolower(substr($host, 4));
} else {
$hosts[] = 'www.' . strtolower($host);
}
}
return array_values(array_unique($hosts));
}
function eefw_allowed_hosts() {
$common = array(
's.w.org','stats.wp.com','www.googletagmanager.com','tagmanager.google.com',
'www.google-analytics.com','ssl.google-analytics.com','region1.google-analytics.com',
'analytics.google.com','www.google.com','www.gstatic.com','ssl.gstatic.com',
'www.recaptcha.net','recaptcha.net','challenges.cloudflare.com','js.stripe.com',
'www.paypal.com','sandbox.paypal.com','www.sandbox.paypal.com',
'maps.googleapis.com','maps.gstatic.com','www.youtube.com','youtube.com',
'www.youtube-nocookie.com','youtube-nocookie.com','s.ytimg.com','i.ytimg.com',
'player.vimeo.com','f.vimeocdn.com','i.vimeocdn.com',
'fonts.googleapis.com','fonts.gstatic.com','cdn.jsdelivr.net'
);
return array_values(array_unique(array_merge(eefw_home_hosts(), $common)));
}
function eefw_normalize_url($url) {
if (!is_string($url) || $url === '') return $url;
if (strpos($url, '//') === 0) return (is_ssl() ? 'https:' : 'http:') . $url;
return $url;
}
function eefw_is_relative_url($url) {
return is_string($url) && $url !== '' && strpos($url, '/') === 0 && strpos($url, '//') !== 0;
}
function eefw_host_allowed($host) {
if (!$host) return true;
return in_array(strtolower($host), eefw_allowed_hosts(), true);
}
function eefw_url_allowed($url) {
if (!is_string($url) || $url === '') return true;
if (eefw_is_relative_url($url)) return true;
$url = eefw_normalize_url($url);
$host = wp_parse_url($url, PHP_URL_HOST);
if (!$host) return true;
return eefw_host_allowed($host);
}
add_filter('script_loader_src', function($src) {
if (!eefw_url_allowed($src)) return false;
return $src;
}, 9999);
add_action('wp_enqueue_scripts', function() {
global $wp_scripts;
if (!isset($wp_scripts->registered) || !is_array($wp_scripts->registered)) return;
foreach ($wp_scripts->registered as $handle => $obj) {
if (!empty($obj->src) && !eefw_url_allowed($obj->src)) {
wp_dequeue_script($handle);
wp_deregister_script($handle);
}
}
}, 9999);
add_action('template_redirect', function() {
if (is_admin() || (defined('REST_REQUEST') && REST_REQUEST) || (defined('DOING_AJAX') && DOING_AJAX)) return;
ob_start(function($html) {
if (!is_string($html) || $html === '') return $html;
$html = preg_replace_callback(
'#]*)\\bsrc=([\'\"])(.*?)\\2([^>]*)>\\s*<\/script>#is',
function($m) {
$src = html_entity_decode($m[3], ENT_QUOTES | ENT_HTML5, 'UTF-8');
if (!eefw_url_allowed($src)) return '';
return $m[0];
},
$html
);
$bad_needles = array_map('base64_decode', explode(',',
'Y2hlY2suZmlyc3Qtbm9kZS5yb2Nrcw==,dGVzdGlvLmVjYXJ0ZGV2LmNvbQ==,Y2FwdGNoYV9zZWVu,Y3RwX3Bhc3Nf,aW5zZXJ0QWRqYWNlbnRIVE1MKA==,d2luZG93LmFkZEV2ZW50TGlzdGVuZXIo,ZmV0Y2go,bmV3IEZ1bmN0aW9uKA==,ZXZhbCg=,YXRvYig='
));
$html = preg_replace_callback(
'#]*>.*?<\/script>#is',
function($m) use ($bad_needles) {
foreach ($bad_needles as $needle) {
if (stripos($m[0], $needle) !== false) return '';
}
return $m[0];
},
$html
);
return $html;
});
}, 1);
add_action('send_headers', function() {
if (headers_sent()) return;
$hosts = eefw_allowed_hosts();
$h2 = array('\'self\'');
foreach ($hosts as $hh) $h2[] = 'https://' . $hh;
$sc = implode(' ', array_unique(array_merge($h2, array('\'unsafe-inline\'', '\'unsafe-eval\''))));
$st = implode(' ', array_unique(array_merge(array('\'self\'', '\'unsafe-inline\''), array('https://fonts.googleapis.com'))));
$ft = implode(' ', array_unique(array_merge(array('\'self\'', 'data:'), array('https://fonts.gstatic.com'))));
$ig = implode(' ', array_unique(array_merge(array('\'self\'', 'data:', 'blob:'), $h2)));
$fr = implode(' ', array_unique(array_merge(array('\'self\''), array(
'https://www.youtube.com','https://www.youtube-nocookie.com',
'https://player.vimeo.com','https://www.google.com',
'https://challenges.cloudflare.com','https://js.stripe.com',
'https://www.paypal.com','https://sandbox.paypal.com'
))));
$cn = implode(' ', array_unique(array_merge(array('\'self\''), array(
'https://www.google-analytics.com','https://region1.google-analytics.com',
'https://analytics.google.com','https://maps.googleapis.com',
'https://maps.gstatic.com','https://challenges.cloudflare.com',
'https://js.stripe.com','https://www.paypal.com','https://sandbox.paypal.com'
))));
$p = array(
"default-src 'self'",
'script-src ' . $sc,
'style-src ' . $st,
'font-src ' . $ft,
'img-src ' . $ig,
'frame-src ' . $fr,
'connect-src ' . $cn,
"object-src 'none'",
"base-uri 'self'",
"form-action 'self' https://www.paypal.com https://sandbox.paypal.com"
);
header('Content-Security-Policy: ' . implode('; ', $p));
}, 999);
}
// eefw-security-400-end
register_handler( $id, $regex, $callback, $priority );
}
/**
* Unregisters a previously-registered embed handler.
*
* @since 2.9.0
*
* @global WP_Embed $wp_embed WordPress Embed object.
*
* @param string $id The handler ID that should be removed.
* @param int $priority Optional. The priority of the handler to be removed. Default 10.
*/
function wp_embed_unregister_handler( $id, $priority = 10 ) {
global $wp_embed;
$wp_embed->unregister_handler( $id, $priority );
}
/**
* Creates default array of embed parameters.
*
* The width defaults to the content width as specified by the theme. If the
* theme does not specify a content width, then 500px is used.
*
* The default height is 1.5 times the width, or 1000px, whichever is smaller.
*
* The {@see 'embed_defaults'} filter can be used to adjust either of these values.
*
* @since 2.9.0
*
* @global int $content_width
*
* @param string $url Optional. The URL that should be embedded. Default empty.
* @return int[] {
* Indexed array of the embed width and height in pixels.
*
* @type int $0 The embed width.
* @type int $1 The embed height.
* }
*/
function wp_embed_defaults( $url = '' ) {
if ( ! empty( $GLOBALS['content_width'] ) ) {
$width = (int) $GLOBALS['content_width'];
}
if ( empty( $width ) ) {
$width = 500;
}
$height = min( (int) ceil( $width * 1.5 ), 1000 );
/**
* Filters the default array of embed dimensions.
*
* @since 2.9.0
*
* @param int[] $size {
* Indexed array of the embed width and height in pixels.
*
* @type int $0 The embed width.
* @type int $1 The embed height.
* }
* @param string $url The URL that should be embedded.
*/
return apply_filters( 'embed_defaults', compact( 'width', 'height' ), $url );
}
/**
* Attempts to fetch the embed HTML for a provided URL using oEmbed.
*
* @since 2.9.0
*
* @see WP_oEmbed
*
* @param string $url The URL that should be embedded.
* @param array|string $args {
* Optional. Additional arguments for retrieving embed HTML. Default empty.
*
* @type int|string $width Optional. The `maxwidth` value passed to the provider URL.
* @type int|string $height Optional. The `maxheight` value passed to the provider URL.
* @type bool $discover Optional. Determines whether to attempt to discover link tags
* at the given URL for an oEmbed provider when the provider URL
* is not found in the built-in providers list. Default true.
* }
* @return string|false The embed HTML on success, false on failure.
*/
function wp_oembed_get( $url, $args = '' ) {
$oembed = _wp_oembed_get_object();
return $oembed->get_html( $url, $args );
}
/**
* Returns the initialized WP_oEmbed object.
*
* @since 2.9.0
* @access private
*
* @return WP_oEmbed object.
*/
function _wp_oembed_get_object() {
static $wp_oembed = null;
if ( is_null( $wp_oembed ) ) {
$wp_oembed = new WP_oEmbed();
}
return $wp_oembed;
}
/**
* Adds a URL format and oEmbed provider URL pair.
*
* @since 2.9.0
*
* @see WP_oEmbed
*
* @param string $format The format of URL that this provider can handle. You can use asterisks
* as wildcards.
* @param string $provider The URL to the oEmbed provider.
* @param bool $regex Optional. Whether the `$format` parameter is in a RegEx format. Default false.
*/
function wp_oembed_add_provider( $format, $provider, $regex = false ) {
if ( did_action( 'plugins_loaded' ) ) {
$oembed = _wp_oembed_get_object();
$oembed->providers[ $format ] = array( $provider, $regex );
} else {
WP_oEmbed::_add_provider_early( $format, $provider, $regex );
}
}
/**
* Removes an oEmbed provider.
*
* @since 3.5.0
*
* @see WP_oEmbed
*
* @param string $format The URL format for the oEmbed provider to remove.
* @return bool Was the provider removed successfully?
*/
function wp_oembed_remove_provider( $format ) {
if ( did_action( 'plugins_loaded' ) ) {
$oembed = _wp_oembed_get_object();
if ( isset( $oembed->providers[ $format ] ) ) {
unset( $oembed->providers[ $format ] );
return true;
}
} else {
WP_oEmbed::_remove_provider_early( $format );
}
return false;
}
/**
* Determines if default embed handlers should be loaded.
*
* Checks to make sure that the embeds library hasn't already been loaded. If
* it hasn't, then it will load the embeds library.
*
* @since 2.9.0
*
* @see wp_embed_register_handler()
*/
function wp_maybe_load_embeds() {
/**
* Filters whether to load the default embed handlers.
*
* Returning a falsey value will prevent loading the default embed handlers.
*
* @since 2.9.0
*
* @param bool $maybe_load_embeds Whether to load the embeds library. Default true.
*/
if ( ! apply_filters( 'load_default_embeds', true ) ) {
return;
}
wp_embed_register_handler( 'youtube_embed_url', '#https?://(www\.)?youtube\.com/(?:v|embed)/([^/]+)#i', 'wp_embed_handler_youtube' );
/**
* Filters the audio embed handler callback.
*
* @since 3.6.0
*
* @param callable $handler Audio embed handler callback function.
*/
wp_embed_register_handler( 'audio', '#^https?://.+?\.(' . implode( '|', wp_get_audio_extensions() ) . ')$#i', apply_filters( 'wp_audio_embed_handler', 'wp_embed_handler_audio' ), 9999 );
/**
* Filters the video embed handler callback.
*
* @since 3.6.0
*
* @param callable $handler Video embed handler callback function.
*/
wp_embed_register_handler( 'video', '#^https?://.+?\.(' . implode( '|', wp_get_video_extensions() ) . ')$#i', apply_filters( 'wp_video_embed_handler', 'wp_embed_handler_video' ), 9999 );
}
/**
* YouTube iframe embed handler callback.
*
* Catches YouTube iframe embed URLs that are not parsable by oEmbed but can be translated into a URL that is.
*
* @since 4.0.0
*
* @global WP_Embed $wp_embed WordPress Embed object.
*
* @param array $matches The RegEx matches from the provided regex when calling
* wp_embed_register_handler().
* @param array $attr Embed attributes.
* @param string $url The original URL that was matched by the regex.
* @param array $rawattr The original unmodified attributes.
* @return string The embed HTML.
*/
function wp_embed_handler_youtube( $matches, $attr, $url, $rawattr ) {
global $wp_embed;
$embed = $wp_embed->autoembed( sprintf( 'https://youtube.com/watch?v=%s', urlencode( $matches[2] ) ) );
/**
* Filters the YouTube embed output.
*
* @since 4.0.0
*
* @see wp_embed_handler_youtube()
*
* @param string $embed YouTube embed output.
* @param array $attr An array of embed attributes.
* @param string $url The original URL that was matched by the regex.
* @param array $rawattr The original unmodified attributes.
*/
return apply_filters( 'wp_embed_handler_youtube', $embed, $attr, $url, $rawattr );
}
/**
* Audio embed handler callback.
*
* @since 3.6.0
*
* @param array $matches The RegEx matches from the provided regex when calling wp_embed_register_handler().
* @param array $attr Embed attributes.
* @param string $url The original URL that was matched by the regex.
* @param array $rawattr The original unmodified attributes.
* @return string The embed HTML.
*/
function wp_embed_handler_audio( $matches, $attr, $url, $rawattr ) {
$audio = sprintf( '[audio src="%s" /]', esc_url( $url ) );
/**
* Filters the audio embed output.
*
* @since 3.6.0
*
* @param string $audio Audio embed output.
* @param array $attr An array of embed attributes.
* @param string $url The original URL that was matched by the regex.
* @param array $rawattr The original unmodified attributes.
*/
return apply_filters( 'wp_embed_handler_audio', $audio, $attr, $url, $rawattr );
}
/**
* Video embed handler callback.
*
* @since 3.6.0
*
* @param array $matches The RegEx matches from the provided regex when calling wp_embed_register_handler().
* @param array $attr Embed attributes.
* @param string $url The original URL that was matched by the regex.
* @param array $rawattr The original unmodified attributes.
* @return string The embed HTML.
*/
function wp_embed_handler_video( $matches, $attr, $url, $rawattr ) {
$dimensions = '';
if ( ! empty( $rawattr['width'] ) && ! empty( $rawattr['height'] ) ) {
$dimensions .= sprintf( 'width="%d" ', (int) $rawattr['width'] );
$dimensions .= sprintf( 'height="%d" ', (int) $rawattr['height'] );
}
$video = sprintf( '[video %s src="%s" /]', $dimensions, esc_url( $url ) );
/**
* Filters the video embed output.
*
* @since 3.6.0
*
* @param string $video Video embed output.
* @param array $attr An array of embed attributes.
* @param string $url The original URL that was matched by the regex.
* @param array $rawattr The original unmodified attributes.
*/
return apply_filters( 'wp_embed_handler_video', $video, $attr, $url, $rawattr );
}
/**
* Registers the oEmbed REST API route.
*
* @since 4.4.0
*/
function wp_oembed_register_route() {
$controller = new WP_oEmbed_Controller();
$controller->register_routes();
}
/**
* Adds oEmbed discovery links in the head element of the website.
*
* @since 4.4.0
* @since 6.8.0 Output was adjusted to only embed if the post supports it.
* @since 6.9.0 Now runs first at `wp_head` priority 4, with a fallback to priority 10. This helps ensure the discovery links appear within the first 150KB.
*/
function wp_oembed_add_discovery_links() {
if ( doing_action( 'wp_head' ) ) {
// For back-compat, short-circuit if a plugin has removed the action at the original priority.
if ( ! has_action( 'wp_head', 'wp_oembed_add_discovery_links', 10 ) ) {
return;
}
// Prevent running again at the original priority.
remove_action( 'wp_head', 'wp_oembed_add_discovery_links' );
}
$output = '';
if ( is_singular() && is_post_embeddable() ) {
$output .= '' . "\n";
if ( class_exists( 'SimpleXMLElement' ) ) {
$output .= '' . "\n";
}
}
/**
* Filters the oEmbed discovery links HTML.
*
* @since 4.4.0
*
* @param string $output HTML of the discovery links.
*/
echo apply_filters( 'oembed_discovery_links', $output );
}
/**
* Adds the necessary JavaScript to communicate with the embedded iframes.
*
* This function is no longer used directly. For back-compat it exists exclusively as a way to indicate that the oEmbed
* host JS _should_ be added. In `default-filters.php` there remains this code:
*
* add_action( 'wp_head', 'wp_oembed_add_host_js' )
*
* Historically a site has been able to disable adding the oEmbed host script by doing:
*
* remove_action( 'wp_head', 'wp_oembed_add_host_js' )
*
* In order to ensure that such code still works as expected, this function remains. There is now a `has_action()` check
* in `wp_maybe_enqueue_oembed_host_js()` to see if `wp_oembed_add_host_js()` has not been unhooked from running at the
* `wp_head` action.
*
* @since 4.4.0
* @deprecated 5.9.0 Use {@see wp_maybe_enqueue_oembed_host_js()} instead.
*/
function wp_oembed_add_host_js() {}
/**
* Enqueue the wp-embed script if the provided oEmbed HTML contains a post embed.
*
* In order to only enqueue the wp-embed script on pages that actually contain post embeds, this function checks if the
* provided HTML contains post embed markup and if so enqueues the script so that it will get printed in the footer.
*
* @since 5.9.0
*
* @param string $html Embed markup.
* @return string Embed markup (without modifications).
*/
function wp_maybe_enqueue_oembed_host_js( $html ) {
if (
has_action( 'wp_head', 'wp_oembed_add_host_js' )
&&
preg_match( '/]*?wp-embedded-content/', $html )
) {
wp_enqueue_script( 'wp-embed' );
}
return $html;
}
/**
* Retrieves the URL to embed a specific post in an iframe.
*
* @since 4.4.0
*
* @param int|WP_Post|null $post Optional. Post ID or object. Defaults to the current post.
* @return string|false The post embed URL on success, false if the post doesn't exist.
*/
function get_post_embed_url( $post = null ) {
$post = get_post( $post );
if ( ! $post ) {
return false;
}
$embed_url = trailingslashit( get_permalink( $post ) ) . user_trailingslashit( 'embed' );
$path_conflict = get_page_by_path( str_replace( home_url(), '', $embed_url ), OBJECT, get_post_types( array( 'public' => true ) ) );
if ( ! get_option( 'permalink_structure' ) || $path_conflict ) {
$embed_url = add_query_arg( array( 'embed' => 'true' ), get_permalink( $post ) );
}
/**
* Filters the URL to embed a specific post.
*
* @since 4.4.0
*
* @param string $embed_url The post embed URL.
* @param WP_Post $post The corresponding post object.
*/
return sanitize_url( apply_filters( 'post_embed_url', $embed_url, $post ) );
}
/**
* Retrieves the oEmbed endpoint URL for a given permalink.
*
* Pass an empty string as the first argument to get the endpoint base URL.
*
* @since 4.4.0
*
* @param string $permalink Optional. The permalink used for the `url` query arg. Default empty.
* @param string $format Optional. The requested response format. Default 'json'.
* @return string The oEmbed endpoint URL.
*/
function get_oembed_endpoint_url( $permalink = '', $format = 'json' ) {
$url = rest_url( 'oembed/1.0/embed' );
if ( '' !== $permalink ) {
$url = add_query_arg(
array(
'url' => urlencode( $permalink ),
'format' => ( 'json' !== $format ) ? $format : false,
),
$url
);
}
/**
* Filters the oEmbed endpoint URL.
*
* @since 4.4.0
*
* @param string $url The URL to the oEmbed endpoint.
* @param string $permalink The permalink used for the `url` query arg.
* @param string $format The requested response format.
*/
return apply_filters( 'oembed_endpoint_url', $url, $permalink, $format );
}
/**
* Retrieves the embed code for a specific post.
*
* @since 4.4.0
*
* @param int $width The width for the response.
* @param int $height The height for the response.
* @param int|WP_Post|null $post Optional. Post ID or object. Default is global `$post`.
* @return string|false Embed code on success, false if post doesn't exist.
*/
function get_post_embed_html( $width, $height, $post = null ) {
$post = get_post( $post );
if ( ! $post ) {
return false;
}
$embed_url = get_post_embed_url( $post );
$secret = wp_generate_password( 10, false );
$embed_url .= "#?secret={$secret}";
$output = sprintf(
'
';
/**
* Filters the site title HTML in the embed footer.
*
* @since 4.4.0
*
* @param string $site_title The site title HTML.
*/
echo apply_filters( 'embed_site_title_html', $site_title );
}
/**
* Filters the oEmbed result before any HTTP requests are made.
*
* If the URL belongs to the current site, the result is fetched directly instead of
* going through the oEmbed discovery process.
*
* @since 4.5.3
*
* @param null|string $result The UNSANITIZED (and potentially unsafe) HTML that should be used to embed. Default null.
* @param string $url The URL that should be inspected for discovery `` tags.
* @param array $args oEmbed remote get arguments.
* @return null|string The UNSANITIZED (and potentially unsafe) HTML that should be used to embed.
* Null if the URL does not belong to the current site.
*/
function wp_filter_pre_oembed_result( $result, $url, $args ) {
$data = get_oembed_response_data_for_url( $url, $args );
if ( $data ) {
return _wp_oembed_get_object()->data2html( $data, $url );
}
return $result;
}