331 lines
8.8 KiB
PHP
331 lines
8.8 KiB
PHP
<?php
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/**
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* VideoPress video object retrieved from VideoPress servers and parsed.
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* @since 1.3
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*/
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class VideoPress_Video {
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public $version = 3;
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/**
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* Manifest version returned by remote service.
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*
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* @var string
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* @since 1.3
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*/
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const manifest_version = '1.5';
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/**
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* Expiration of the video expressed in Unix time
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*
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* @var int
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* @since 1.3
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*/
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public $expires;
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/**
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* VideoPress unique identifier
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*
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* @var string
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* @since 1.3
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*/
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public $guid;
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/**
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* WordPress.com blog identifier
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*
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* @var int
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* @since 1.5
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*/
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public $blog_id;
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/**
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* Remote blog attachment identifier
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*
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* @var int
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* @since 1.5
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*/
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public $post_id;
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/**
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* Maximum desired width.
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*
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* @var int
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* @since 1.3
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*/
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public $maxwidth;
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/**
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* Video width calculated based on original video dimensions and the requested maxwidth
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*
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* @var int
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* @since 1.3
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*/
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public $calculated_width;
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/**
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* Video height calculated based on original video dimensions and the requested maxwidth
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*
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* @var int
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* @since 1.3
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*/
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public $calculated_height;
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/**
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* Video title
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*
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* @var string
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* @since 1.3
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*/
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public $title;
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/**
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* Directionality of title text. ltr or rtl
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*
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* @var string
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* @since 1.3
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*/
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public $text_direction;
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/**
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* Text and audio language as ISO 639-2 language code
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*
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* @var string
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* @since 1.3
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*/
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public $language;
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/**
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* Video duration in whole seconds
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*
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* @var int
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* @since 1.3
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*/
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public $duration;
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/**
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* Recommended minimum age of the viewer.
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*
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* @var int
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* @since 1.3
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*/
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public $age_rating;
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/**
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* Video author has restricted video embedding or sharing
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*
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* @var bool
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* @since 1.3
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*/
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public $restricted_embed;
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/**
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* Poster frame image URI for the given video guid and calculated dimensions.
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*
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* @var string
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* @since 1.3
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*/
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public $poster_frame_uri;
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/**
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* Video files associated with the given guid for the calculated dimensions.
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*
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* @var stdClass
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* @since 1.3
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*/
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public $videos;
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/**
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* Video player information
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*
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* @var stdClass
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* @since 1.3
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*/
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public $players;
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/**
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* Video player skinning preferences including background color and watermark
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*
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* @var array
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* @since 1.5
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*/
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public $skin;
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/**
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* Closed captions if available for the given video. Associative array of ISO 639-2 language code and a WebVTT URI
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*
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* @var array
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* @since 1.5
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*/
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public $captions;
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/**
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* Setup the object.
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* Request video information from VideoPress servers and process the response.
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*
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* @since 1.3
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* @var string $guid VideoPress unique identifier
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* @var int $maxwidth maximum requested video width. final width and height are calculated on VideoPress servers based on the aspect ratio of the original video upload.
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*/
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public function __construct( $guid, $maxwidth = 640 ) {
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$this->guid = $guid;
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$maxwidth = absint( $maxwidth );
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if ( $maxwidth > 0 )
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$this->maxwidth = $maxwidth;
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$data = $this->get_data();
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if ( is_wp_error( $data ) || empty( $data ) ) {
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/** This filter is documented in modules/videopress/class.videopress-player.php */
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if ( ! apply_filters( 'jetpack_videopress_use_legacy_player', false ) ) {
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// Unlike the Flash player, the new player does it's own error checking, age gate, etc.
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$data = (object) array( 'guid' => $guid, 'width' => $maxwidth, 'height' => $maxwidth / 16 * 9 );
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} else {
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$this->error = $data;
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return;
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}
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}
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if ( isset( $data->blog_id ) )
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$this->blog_id = absint( $data->blog_id );
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if ( isset( $data->post_id ) )
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$this->post_id = absint( $data->post_id );
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if ( isset( $data->title ) && $data->title !== '' )
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$this->title = trim( str_replace( ' ', ' ', $data->title ) );
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if ( isset( $data->text_direction ) && $data->text_direction === 'rtl' )
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$this->text_direction = 'rtl';
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else
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$this->text_direction = 'ltr';
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if ( isset( $data->language ) )
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$this->language = $data->language;
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if ( isset( $data->duration ) && $data->duration > 0 )
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$this->duration = absint( $data->duration );
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if ( isset( $data->width ) && $data->width > 0 )
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$this->calculated_width = absint( $data->width );
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if ( isset( $data->height ) && $data->height > 0 )
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$this->calculated_height = absint( $data->height );
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if ( isset( $data->age_rating ) )
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$this->age_rating = absint( $this->age_rating );
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if ( isset( $data->restricted_embed ) && $data->restricted_embed === true )
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$this->restricted_embed = true;
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else
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$this->restricted_embed = false;
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if ( isset( $data->posterframe ) && $data->posterframe !== '' )
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$this->poster_frame_uri = esc_url_raw( $data->posterframe, array( 'http', 'https' ) );
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if ( isset( $data->mp4 ) || isset( $data->ogv ) ) {
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$this->videos = new stdClass();
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if ( isset( $data->mp4 ) )
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$this->videos->mp4 = $data->mp4;
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if ( isset( $data->ogv ) )
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$this->videos->ogv = $data->ogv;
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}
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if ( isset( $data->swf ) ) {
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if ( ! isset( $this->players ) )
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$this->players = new stdClass();
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$this->players->swf = $data->swf;
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}
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if ( isset( $data->skin ) )
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$this->skin = $data->skin;
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if ( isset( $data->captions ) )
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$this->captions = (array) $data->captions;
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}
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/**
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* Convert an Expires HTTP header value into Unix time for use in WP Cache
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*
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* @since 1.3
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* @var string $expires_header
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* @return int|bool Unix time or false
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*/
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public static function calculate_expiration( $expires_header ) {
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if ( empty( $expires_header ) || ! is_string( $expires_header ) )
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return false;
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if ( class_exists( 'DateTime' ) && class_exists( 'DateTimeZone' ) ) {
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$expires_date = DateTime::createFromFormat( 'D, d M Y H:i:s T', $expires_header, new DateTimeZone( 'UTC' ) );
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if ( $expires_date instanceOf DateTime )
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return date_format( $expires_date, 'U' );
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} else {
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$expires_array = strptime( $expires_header, '%a, %d %b %Y %H:%M:%S %Z' );
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if ( is_array( $expires_array ) && isset( $expires_array['tm_hour'] ) && isset( $expires_array['tm_min'] ) && isset( $expires_array['tm_sec'] ) && isset( $expires_array['tm_mon'] ) && isset( $expires_array['tm_mday'] ) && isset( $expires_array['tm_year'] ) )
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return gmmktime( $expires_array['tm_hour'], $expires_array['tm_min'], $expires_array['tm_sec'], 1 + $expires_array['tm_mon'], $expires_array['tm_mday'], 1900 + $expires_array['tm_year'] );
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}
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return false;
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}
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/**
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* Extract the site's host domain for statistics and comparison against an allowed site list in the case of restricted embeds.
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*
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* @since 1.2
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* @param string $url absolute URL
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* @return bool|string host component of the URL, or false if none found
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*/
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public static function hostname( $url ) {
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return parse_url( esc_url_raw( $url ), PHP_URL_HOST );
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}
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/**
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* Request data from WordPress.com for the given guid, maxwidth, and calculated blog hostname.
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*
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* @since 1.3
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* @return stdClass|WP_Error parsed JSON response or WP_Error if request unsuccessful
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*/
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private function get_data() {
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global $wp_version;
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$domain = self::hostname( home_url() );
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$request_params = array( 'guid' => $this->guid, 'domain' => $domain );
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if ( isset( $this->maxwidth ) && $this->maxwidth > 0 )
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$request_params['maxwidth'] = $this->maxwidth;
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$url = 'http://videopress.com/data/wordpress.json';
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if ( is_ssl() )
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$url = 'https://v.wordpress.com/data/wordpress.json';
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$response = wp_remote_get( add_query_arg( $request_params, $url ), array(
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'redirection' => 1,
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'user-agent' => 'VideoPress plugin ' . $this->version . '; WordPress ' . $wp_version . ' (' . home_url('/') . ')',
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) );
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unset( $request_params );
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unset( $url );
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$response_body = wp_remote_retrieve_body( $response );
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$response_code = absint( wp_remote_retrieve_response_code( $response ) );
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if ( is_wp_error( $response ) ) {
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return $response;
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} elseif ( $response_code === 400 ) {
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return new WP_Error( 'bad_config', __( 'The VideoPress plugin could not communicate with the VideoPress servers. This error is most likely caused by a misconfigured plugin. Please reinstall or upgrade.', 'jetpack' ) );
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} elseif ( $response_code === 403 ) {
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return new WP_Error( 'http_forbidden', '<p>' . sprintf( __( '<strong>%s</strong> is not an allowed embed site.' , 'jetpack' ), esc_html( $domain ) ) . '</p><p>' . __( 'Publisher limits playback of video embeds.', 'jetpack' ) . '</p>' );
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} elseif ( $response_code === 404 ) {
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return new WP_Error( 'http_not_found', '<p>' . sprintf( __( 'No data found for VideoPress identifier: <strong>%s</strong>.', 'jetpack' ), $this->guid ) . '</p>' );
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} elseif ( $response_code !== 200 || empty( $response_body ) ) {
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return;
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} else {
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$expires_header = wp_remote_retrieve_header( $response, 'Expires' );
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if ( ! empty( $expires_header ) ) {
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$expires = self::calculate_expiration( $expires_header );
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if ( ! empty( $expires ) )
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$this->expires = $expires;
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}
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return json_decode( $response_body );
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}
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}
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}
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