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<?php
/**
* @package Internals
* @since 1.7.0
* @version 1.7.0
*/
// Avoid direct calls to this file.
if ( ! class_exists( 'WPSEO_Video_Sitemap' ) ) {
header( 'Status: 403 Forbidden' );
header( 'HTTP/1.1 403 Forbidden' );
exit();
}
/**
*****************************************************************
* YouTube Video SEO Details
*
* @link https://www.youtube.com/yt/dev/
*
* Also available: oembed at http://www.youtube.com/oembed?url=%s
*/
if ( ! class_exists( 'WPSEO_Video_Details_Youtube' ) ) {
/**
* Class WPSEO_Video_Details_Youtube
*/
class WPSEO_Video_Details_Youtube extends WPSEO_Video_Details {
/**
* Sprintf template to create a URL from an ID.
*
* @var string
*/
protected $url_template = 'http://www.youtube.com/v/%s';
/**
* Information on the remote URL to use for retrieving the video details.
*
* @var array
*/
protected $remote_url = array(
'pattern' => 'https://www.googleapis.com/youtube/v3/videos?part=snippet,status,statistics,contentDetails,player&id=%1$s&fields=items&key=%2$s',
'replace_key' => 'id',
'response_type' => 'json',
);
/**
* Google API access key.
*
* @var string
*/
protected $api_key = 'AIzaSyAAR2WKu1hRt7lE1HWkiAzGVzoodviCxOI';
/**
* Retrieve the video id from a known video url based on a regex match.
* Also change the url based on the new video id.
*
* @param int $match_nr The captured parenthesized sub-pattern to use from matches. Defaults to 1.
*
* @return void
*/
protected function determine_video_id_from_url( $match_nr = 1 ) {
if ( isset( $this->vid['url'] ) && is_string( $this->vid['url'] ) && $this->vid['url'] !== '' ) {
$yt_id = WPSEO_Video_Sitemap::$youtube_id_pattern;
$patterns = array(
'`youtube\.(?:com|[a-z]{2})/(?:v/|(?:watch)?(?:\?|#!)(?:.*&)?v=)(' . $yt_id . ')`i',
'`youtube(?:-nocookie)?\.com/(?:embed|v)/(?!videoseries|playlist)(' . $yt_id . ')`i',
'`https?://youtu\.be/(' . $yt_id . ')`i',
);
foreach ( $patterns as $pattern ) {
if ( preg_match( $pattern, $this->vid['url'], $match ) ) {
$this->vid['id'] = $match[ $match_nr ];
break;
}
}
// @todo [JRF => Yoast] shouldn't this be checked against $youtube_id_pattern as well ?
if ( ( ! isset( $this->vid['id'] ) || empty( $this->vid['id'] ) ) && ! preg_match( '`^(?:http|//)`', $this->vid['url'] ) ) {
$this->vid['id'] = $this->vid['url'];
}
}
}
/**
* Check if the response is for a video
*
* @return bool
*/
protected function is_video_response() {
return ( ! empty( $this->decoded_response ) );
}
/**
* Set the video duration
*/
protected function set_duration() {
if ( ! empty( $this->decoded_response->contentDetails->duration ) ) {
if ( version_compare( PHP_VERSION, '5.3.0', '>=' ) ) {
$date = new DateTime( '@0' );
$date->add( new DateInterval( $this->decoded_response->contentDetails->duration ) );
$this->vid['duration'] = (int) $date->format( 'U' );
}
else {
if ( preg_match( '`^(?:P)(?:[^T]*)(?:T)?(?:(?P<hour>\d+)H)?(?:(?P<min>\d+)M)?(?:(?P<sec>\d+)S)?$`', $this->decoded_response->contentDetails->duration, $matches ) > 0 ) {
$seconds = 0;
if ( ! empty( $matches['hour'] ) ) {
$seconds += ( $matches['hour'] * 3600 );
}
if ( ! empty( $matches['min'] ) ) {
$seconds += ( $matches['min'] * 60 );
}
if ( ! empty( $matches['sec'] ) ) {
$seconds += $matches['sec'];
}
$this->vid['duration'] = $seconds;
}
}
}
}
/**
* Set the video height
*/
protected function set_height() {
if ( ! empty( $this->decoded_response->player->embedHtml ) &&
preg_match( '` height="([^"]+)"`i', $this->decoded_response->player->embedHtml, $match )
) {
$this->vid['height'] = (int) $match[1];
}
else {
// Fall back to hard-coded default.
$this->vid['height'] = 390;
}
}
/**
* Set the player location
*/
protected function set_player_loc() {
// Bow out if video is explicitely not embeddable - falls through if embeddable status not available.
if ( isset( $this->decoded_response->status->embeddable ) && $this->decoded_response->status->embeddable !== true ) {
return;
}
if ( ! empty( $this->decoded_response->player->embedHtml ) &&
preg_match( '` src="([^"]+)"`i', $this->decoded_response->player->embedHtml, $match )
) {
$player_loc = $match[1];
}
else {
// Fall back to hard-coded default.
$player_loc = '//www.youtube.com/embed/' . rawurlencode( $this->vid['id'] );
}
// Add protocol if the resulting player URL would be protocol-less.
if ( 0 !== strpos( $player_loc, 'http' ) ) {
$player_loc = 'https:' . $player_loc;
}
$this->vid['player_loc'] = $player_loc;
}
/**
* Set the thumbnail location
*/
protected function set_thumbnail_loc() {
$formats = array( 'maxres', 'standard', 'high', 'medium', 'default' );
foreach ( $formats as $format ) {
if ( ! empty( $this->decoded_response->snippet->thumbnails->$format ) && is_object( $this->decoded_response->snippet->thumbnails->$format ) ) {
$thumbnail = $this->decoded_response->snippet->thumbnails->$format;
if ( ! empty( $thumbnail->url ) ) {
$image = $this->make_image_local( $thumbnail->url );
if ( is_string( $image ) && $image !== '' ) {
$this->vid['thumbnail_loc'] = $image;
return;
}
}
}
}
}
/**
* Set the video view count
*/
protected function set_view_count() {
if ( ! empty( $this->decoded_response->statistics->viewCount ) ) {
$this->vid['view_count'] = $this->decoded_response->statistics->viewCount;
}
}
/**
* Set the video width
*/
protected function set_width() {
if ( ! empty( $this->decoded_response->player->embedHtml ) &&
preg_match( '` width="([^"]+)"`i', $this->decoded_response->player->embedHtml, $match )
) {
$this->vid['width'] = (int) $match[1];
}
else {
// Fall back to hard-coded default.
$this->vid['width'] = 640;
}
}
/**
* Extends the parent method. By letting the parent set the response and get the first item afterwards
*/
protected function decode_as_json() {
parent::decode_as_json();
if ( ! empty( $this->decoded_response->items[0] ) ) {
$this->decoded_response = $this->decoded_response->items[0];
}
else {
// Reset if no valid data received.
$this->decoded_response = null;
}
}
} /* End of class */
} /* End of class-exists wrapper */