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<?php
namespace Elementor;
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly.
}
/**
* Elementor embed.
*
* Elementor embed handler class is responsible for Elementor embed functionality.
* The class holds the supported providers with their embed patters, and handles
* their custom properties to create custom HTML with the embedded content.
*
* @since 1.5.0
*/
class Embed {
/**
* Provider match masks.
*
* Holds a list of supported providers with their URL structure in a regex format.
*
* @since 1.5.0
* @access private
* @static
*
* @var array Provider URL structure regex.
*/
private static $provider_match_masks = [
'youtube' => '/^.*(?:youtu\.be\/|youtube(?:-nocookie)?\.com\/(?:(?:watch)?\?(?:.*&)?vi?=|(?:embed|v|vi|user)\/))([^\?&\"\'>]+)/',
'vimeo' => '/^.*vimeo\.com\/(?:[a-z]*\/)*([0-9]{6,11})[?]?.*/',
'dailymotion' => '/^.*dailymotion.com\/(?:video|hub)\/([^_]+)[^#]*(#video=([^_&]+))?/',
'videopress' => [
'/^(?:http(?:s)?:\/\/)?videos\.files\.wordpress\.com\/([a-zA-Z\d]{8,})\//i',
'/^(?:http(?:s)?:\/\/)?(?:www\.)?video(?:\.word)?press\.com\/(?:v|embed)\/([a-zA-Z\d]{8,})(.+)?/i',
],
];
/**
* Embed patterns.
*
* Holds a list of supported providers with their embed patters.
*
* @since 1.5.0
* @access private
* @static
*
* @var array Embed patters.
*/
private static $embed_patterns = [
'youtube' => 'https://www.youtube{NO_COOKIE}.com/embed/{VIDEO_ID}?feature=oembed',
'vimeo' => 'https://player.vimeo.com/video/{VIDEO_ID}#t={TIME}',
'dailymotion' => 'https://dailymotion.com/embed/video/{VIDEO_ID}',
'videopress' => 'https://videopress.com/embed/{VIDEO_ID}',
];
/**
* Get video properties.
*
* Retrieve the video properties for a given video URL.
*
* @since 1.5.0
* @access public
* @static
*
* @param string $video_url Video URL.
*
* @return null|array The video properties, or null.
*/
public static function get_video_properties( $video_url ) {
foreach ( self::$provider_match_masks as $provider => $match_mask ) {
if ( ! is_array( $match_mask ) ) {
$match_mask = [ $match_mask ];
}
foreach ( $match_mask as $mask ) {
if ( preg_match( $mask, $video_url, $matches ) ) {
return [
'provider' => $provider,
'video_id' => $matches[1],
];
}
}
}
return null;
}
/**
* Get embed URL.
*
* Retrieve the embed URL for a given video.
*
* @since 1.5.0
* @access public
* @static
*
* @param string $video_url Video URL.
* @param array $embed_url_params Optional. Embed parameters. Default is an
* empty array.
* @param array $options Optional. Embed options. Default is an
* empty array.
*
* @return null|array The video properties, or null.
*/
public static function get_embed_url( $video_url, array $embed_url_params = [], array $options = [] ) {
$video_properties = self::get_video_properties( $video_url );
if ( ! $video_properties ) {
return null;
}
$embed_pattern = self::$embed_patterns[ $video_properties['provider'] ];
$replacements = [
'{VIDEO_ID}' => $video_properties['video_id'],
];
if ( 'youtube' === $video_properties['provider'] ) {
$replacements['{NO_COOKIE}'] = ! empty( $options['privacy'] ) ? '-nocookie' : '';
} elseif ( 'vimeo' === $video_properties['provider'] ) {
$time_text = '';
if ( ! empty( $options['start'] ) ) {
$time_text = date( 'H\hi\ms\s', $options['start'] ); // PHPCS:Ignore WordPress.DateTime.RestrictedFunctions.date_date
}
$replacements['{TIME}'] = $time_text;
/**
* Handle Vimeo private videos
*
* Vimeo requires an additional parameter when displaying private/unlisted videos. It has two ways of
* passing that parameter:
* * as an endpoint - vimeo.com/{video_id}/{privacy_token}
* OR
* * as a GET parameter named `h` - vimeo.com/{video_id}?h={privacy_token}
*
* The following regex match looks for either of these methods in the Vimeo URL, and if it finds a privacy
* token, it adds it to the embed params array as the `h` parameter (which is how Vimeo can receive it when
* using Oembed).
*/
$h_param = [];
preg_match( '/(?|(?:[\?|\&]h={1})([\w]+)|\d\/([\w]+))/', $video_url, $h_param );
if ( ! empty( $h_param ) ) {
$embed_url_params['h'] = $h_param[1];
}
}
$embed_pattern = str_replace( array_keys( $replacements ), $replacements, $embed_pattern );
return add_query_arg( $embed_url_params, $embed_pattern );
}
/**
* Get embed HTML.
*
* Retrieve the final HTML of the embedded URL.
*
* @since 1.5.0
* @access public
* @static
*
* @param string $video_url Video URL.
* @param array $embed_url_params Optional. Embed parameters. Default is an
* empty array.
* @param array $options Optional. Embed options. Default is an
* empty array.
* @param array $frame_attributes Optional. IFrame attributes. Default is an
* empty array.
*
* @return string The embed HTML.
*/
public static function get_embed_html( $video_url, array $embed_url_params = [], array $options = [], array $frame_attributes = [] ) {
$video_properties = self::get_video_properties( $video_url );
$default_frame_attributes = [
'class' => 'elementor-video-iframe',
'allowfullscreen',
'allow' => 'clipboard-write',
'title' => sprintf(
/* translators: %s: Video provider */
__( '%s Video Player', 'elementor' ),
$video_properties['provider']
),
];
$video_embed_url = self::get_embed_url( $video_url, $embed_url_params, $options );
if ( ! $video_embed_url ) {
return null;
}
if ( ! isset( $options['lazy_load'] ) || ! $options['lazy_load'] ) {
$default_frame_attributes['src'] = $video_embed_url;
} else {
$default_frame_attributes['data-lazy-load'] = $video_embed_url;
}
if ( isset( $embed_url_params['autoplay'] ) ) {
$default_frame_attributes['allow'] = 'autoplay';
}
$frame_attributes = array_merge( $default_frame_attributes, $frame_attributes );
$attributes_for_print = [];
foreach ( $frame_attributes as $attribute_key => $attribute_value ) {
$attribute_value = esc_attr( $attribute_value );
if ( is_numeric( $attribute_key ) ) {
$attributes_for_print[] = $attribute_value;
} else {
$attributes_for_print[] = sprintf( '%1$s="%2$s"', $attribute_key, $attribute_value );
}
}
$attributes_for_print = implode( ' ', $attributes_for_print );
$iframe_html = "<iframe $attributes_for_print></iframe>";
/** This filter is documented in wp-includes/class-oembed.php */
return apply_filters( 'oembed_result', $iframe_html, $video_url, $frame_attributes );
}
/**
* Get oembed data from the cache.
* if not exists in the cache it will fetch from provider and then save to the cache.
*
* @param $oembed_url
* @param $cached_post_id
*
* @return array|null
*/
public static function get_oembed_data( $oembed_url, $cached_post_id ) {
$cached_oembed_data = json_decode( get_post_meta( $cached_post_id, '_elementor_oembed_cache', true ), true );
if ( isset( $cached_oembed_data[ $oembed_url ] ) ) {
return $cached_oembed_data[ $oembed_url ];
}
$normalize_oembed_data = self::fetch_oembed_data( $oembed_url );
if ( ! $cached_oembed_data ) {
$cached_oembed_data = [];
}
update_post_meta( $cached_post_id, '_elementor_oembed_cache', wp_json_encode( array_merge(
$cached_oembed_data,
[
$oembed_url => $normalize_oembed_data,
]
) ) );
return $normalize_oembed_data;
}
/**
* Fetch oembed data from oembed provider.
*
* @param $oembed_url
*
* @return array|null
*/
public static function fetch_oembed_data( $oembed_url ) {
$oembed_data = _wp_oembed_get_object()->get_data( $oembed_url );
if ( ! $oembed_data ) {
return null;
}
return [
'thumbnail_url' => $oembed_data->thumbnail_url,
'title' => $oembed_data->title,
];
}
/**
* @param $oembed_url
* @param null|string|int $cached_post_id
*
* @return string|null
*/
public static function get_embed_thumbnail_html( $oembed_url, $cached_post_id = null ) {
$oembed_data = self::get_oembed_data( $oembed_url, $cached_post_id );
if ( ! $oembed_data ) {
return null;
}
return '<div class="elementor-image">' . sprintf( '<img src="%1$s" alt="%2$s" title="%2$s" width="%3$s" loading="lazy" />', $oembed_data['thumbnail_url'], esc_attr( $oembed_data['title'] ), '100%' ) . '</div>';
}
}