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shortcode.php
276 lines
| 1 | <?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName |
| 2 | |
| 3 | if ( ! defined( 'ABSPATH' ) ) { |
| 4 | exit( 0 ); |
| 5 | } |
| 6 | |
| 7 | /** |
| 8 | * VideoPress Shortcode Handler |
| 9 | * |
| 10 | * This file may or may not be included from the Jetpack VideoPress module. |
| 11 | */ |
| 12 | class VideoPress_Shortcode { |
| 13 | /** |
| 14 | * Singleton VideoPress_Shortcode instance. |
| 15 | * |
| 16 | * @var VideoPress_Shortcode |
| 17 | */ |
| 18 | protected static $instance; |
| 19 | |
| 20 | /** |
| 21 | * VideoPress_Shortcode constructor. |
| 22 | */ |
| 23 | protected function __construct() { |
| 24 | // Only add the shortcode if it hasn't already been added by the standalone VideoPress plugin. |
| 25 | if ( ! shortcode_exists( 'videopress' ) ) { |
| 26 | add_shortcode( 'videopress', array( $this, 'shortcode_callback' ) ); |
| 27 | add_shortcode( 'wpvideo', array( $this, 'shortcode_callback' ) ); |
| 28 | |
| 29 | add_filter( 'wp_video_shortcode_override', array( $this, 'video_shortcode_override' ), 10, 4 ); |
| 30 | } |
| 31 | |
| 32 | $this->add_video_embed_hander(); |
| 33 | } |
| 34 | |
| 35 | /** |
| 36 | * VideoPress_Shortcode initialization. |
| 37 | * |
| 38 | * @return VideoPress_Shortcode |
| 39 | */ |
| 40 | public static function initialize() { |
| 41 | if ( ! isset( self::$instance ) ) { |
| 42 | self::$instance = new self(); |
| 43 | } |
| 44 | |
| 45 | return self::$instance; |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * Translate a 'videopress' or 'wpvideo' shortcode and arguments into a video player display. |
| 50 | * |
| 51 | * Expected input formats: |
| 52 | * |
| 53 | * [videopress OcobLTqC] |
| 54 | * [wpvideo OcobLTqC] |
| 55 | * |
| 56 | * @link https://codex.wordpress.org/Shortcode_API Shortcode API |
| 57 | * @param array $attr shortcode attributes. |
| 58 | * @return string HTML markup or blank string on fail |
| 59 | */ |
| 60 | public function shortcode_callback( $attr ) { |
| 61 | global $content_width; |
| 62 | |
| 63 | /** |
| 64 | * We only accept GUIDs as a first unnamed argument. |
| 65 | */ |
| 66 | $guid = $attr[0] ?? null; |
| 67 | |
| 68 | if ( isset( $attr['postid'] ) ) { |
| 69 | $guid = get_post_meta( $attr['postid'], 'videopress_guid', true ); |
| 70 | } |
| 71 | |
| 72 | /** |
| 73 | * Make sure the GUID passed in matches how actual GUIDs are formatted. |
| 74 | */ |
| 75 | if ( ! videopress_is_valid_guid( $guid ) ) { |
| 76 | return ''; |
| 77 | } |
| 78 | |
| 79 | /** |
| 80 | * Set the defaults |
| 81 | */ |
| 82 | $defaults = array( |
| 83 | 'w' => 0, // Width of the video player, in pixels |
| 84 | 'at' => 0, // How many seconds in to initially seek to |
| 85 | 'hd' => true, // Whether to display a high definition version |
| 86 | 'loop' => false, // Whether to loop the video repeatedly |
| 87 | 'freedom' => false, // Whether to use only free/libre codecs |
| 88 | 'autoplay' => false, // Whether to autoplay the video on load |
| 89 | 'permalink' => true, // Whether to display the permalink to the video |
| 90 | 'flashonly' => false, // Whether to support the Flash player exclusively |
| 91 | 'defaultlangcode' => false, // Default language code |
| 92 | 'cover' => true, // Whether to scale the video to its container. |
| 93 | 'muted' => false, // Whether the video should start without sound. |
| 94 | 'controls' => true, // Whether the video should display controls. |
| 95 | 'playsinline' => false, // Whether the video should be allowed to play inline (for browsers that support this). |
| 96 | 'useaveragecolor' => false, // Whether the video should use the seekbar automatic average color. |
| 97 | 'preloadcontent' => 'metadata', // Setting for how the browser should preload the video (none, metadata, auto). |
| 98 | ); |
| 99 | |
| 100 | // Make sure "false" will be actually false. |
| 101 | foreach ( $attr as $key => $value ) { |
| 102 | if ( is_string( $value ) && 'false' === strtolower( $value ) ) { |
| 103 | $attr[ $key ] = false; |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | if ( isset( $attr['preload'] ) ) { |
| 108 | $attr['preloadcontent'] = $attr['preload']; |
| 109 | } |
| 110 | |
| 111 | $attr = shortcode_atts( $defaults, $attr, 'videopress' ); |
| 112 | |
| 113 | /** |
| 114 | * Cast the attributes, post-input. |
| 115 | */ |
| 116 | $attr['width'] = absint( $attr['w'] ); |
| 117 | $attr['hd'] = (bool) $attr['hd']; |
| 118 | $attr['freedom'] = (bool) $attr['freedom']; |
| 119 | |
| 120 | /** |
| 121 | * If the provided width is less than the minimum allowed |
| 122 | * width, or greater than `$content_width` ignore. |
| 123 | */ |
| 124 | if ( $attr['width'] < VIDEOPRESS_MIN_WIDTH ) { |
| 125 | $attr['width'] = 0; |
| 126 | } elseif ( isset( $content_width ) && $content_width > VIDEOPRESS_MIN_WIDTH && $attr['width'] > $content_width ) { |
| 127 | $attr['width'] = 0; |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * If there was an invalid or unspecified width, set the width equal to the theme's `$content_width`. |
| 132 | */ |
| 133 | if ( 0 === $attr['width'] && isset( $content_width ) && $content_width >= VIDEOPRESS_MIN_WIDTH ) { |
| 134 | $attr['width'] = (int) $content_width; |
| 135 | } |
| 136 | |
| 137 | /** |
| 138 | * If the width isn't an even number, reduce it by one (making it even). |
| 139 | */ |
| 140 | if ( 1 === ( $attr['width'] % 2 ) ) { |
| 141 | --$attr['width']; |
| 142 | } |
| 143 | |
| 144 | /** |
| 145 | * Filter the default VideoPress shortcode options. |
| 146 | * |
| 147 | * @module videopress |
| 148 | * |
| 149 | * @since 2.5.0 |
| 150 | * |
| 151 | * @param array $args Array of VideoPress shortcode options. |
| 152 | */ |
| 153 | $options = apply_filters( |
| 154 | 'videopress_shortcode_options', |
| 155 | array( |
| 156 | 'at' => (int) $attr['at'], |
| 157 | 'hd' => $attr['hd'], |
| 158 | 'cover' => (bool) $attr['cover'], |
| 159 | 'loop' => $attr['loop'], |
| 160 | 'freedom' => $attr['freedom'], |
| 161 | 'autoplay' => $attr['autoplay'], |
| 162 | 'permalink' => $attr['permalink'], |
| 163 | 'force_flash' => (bool) $attr['flashonly'], |
| 164 | 'defaultlangcode' => $attr['defaultlangcode'], |
| 165 | 'forcestatic' => false, // This used to be a displayed option, but now is only. |
| 166 | 'muted' => $attr['muted'], |
| 167 | 'controls' => $attr['controls'], |
| 168 | 'playsinline' => $attr['playsinline'], |
| 169 | 'useAverageColor' => (bool) $attr['useaveragecolor'], // The casing is intentional, shortcode params are lowercase, but player expects useAverageColor |
| 170 | 'preloadContent' => $attr['preloadcontent'], // The casing is intentional, shortcode params are lowercase, but player expects preloadContent |
| 171 | // accessible via the `videopress_shortcode_options` filter. |
| 172 | ) |
| 173 | ); |
| 174 | |
| 175 | // Register VideoPress scripts |
| 176 | wp_register_script( 'videopress', 'https://v0.wordpress.com/js/videopress.js', array( 'jquery', 'swfobject' ), '1.09', false ); |
| 177 | |
| 178 | require_once __DIR__ . '/class.videopress-video.php'; |
| 179 | require_once __DIR__ . '/class.videopress-player.php'; |
| 180 | |
| 181 | $player = new VideoPress_Player( $guid, $attr['width'], $options ); |
| 182 | |
| 183 | if ( is_feed() ) { |
| 184 | return $player->as_xml(); |
| 185 | } else { |
| 186 | return $player->as_html(); |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | /** |
| 191 | * Override the standard video short tag to also process videopress files as well. |
| 192 | * |
| 193 | * This will, parse the src given, and if it is a videopress file, it will parse as the |
| 194 | * VideoPress shortcode instead. |
| 195 | * |
| 196 | * @param string $html Empty variable to be replaced with shortcode markup. |
| 197 | * @param array $attr Attributes of the video shortcode. |
| 198 | * @param string $content Video shortcode content. |
| 199 | * @param int $instance Unique numeric ID of this video shortcode instance. |
| 200 | * |
| 201 | * @return string |
| 202 | */ |
| 203 | public function video_shortcode_override( $html, $attr, $content, $instance ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable |
| 204 | $videopress_guid = null; |
| 205 | |
| 206 | if ( isset( $attr['videopress_guid'] ) ) { |
| 207 | $videopress_guid = $attr['videopress_guid']; |
| 208 | } else { |
| 209 | // Handle the different possible url attributes |
| 210 | $url_keys = array( 'src', 'mp4' ); |
| 211 | |
| 212 | foreach ( $url_keys as $key ) { |
| 213 | if ( isset( $attr[ $key ] ) ) { |
| 214 | $url = $attr[ $key ]; |
| 215 | // phpcs:ignore WordPress.WP.CapitalPDangit.MisspelledInText |
| 216 | if ( preg_match( '@videos.(videopress\.com|files\.wordpress\.com)/([a-z0-9]{8})/@i', $url, $matches ) ) { |
| 217 | $videopress_guid = $matches[2]; |
| 218 | } |
| 219 | |
| 220 | // Also test for videopress oembed url, which is used by the Video Media Widget. |
| 221 | if ( ! $videopress_guid && preg_match( '@https://videopress.com/v/([a-z0-9]{8})@i', $url, $matches ) ) { |
| 222 | $videopress_guid = $matches[1]; |
| 223 | } |
| 224 | |
| 225 | // Also test for old v.wordpress.com oembed URL. |
| 226 | if ( ! $videopress_guid && preg_match( '|^https?://v\.wordpress\.com/([a-zA-Z\d]{8})(.+)?$|i', $url, $matches ) ) { // phpcs:ignore WordPress.WP.CapitalPDangit.MisspelledInText |
| 227 | $videopress_guid = $matches[1]; |
| 228 | } |
| 229 | |
| 230 | break; |
| 231 | } |
| 232 | } |
| 233 | } |
| 234 | |
| 235 | if ( $videopress_guid ) { |
| 236 | $videopress_attr = array( $videopress_guid ); |
| 237 | if ( isset( $attr['width'] ) ) { |
| 238 | $videopress_attr['w'] = (int) $attr['width']; |
| 239 | } |
| 240 | if ( isset( $attr['muted'] ) ) { |
| 241 | $videopress_attr['muted'] = $attr['muted']; |
| 242 | } |
| 243 | if ( isset( $attr['autoplay'] ) ) { |
| 244 | $videopress_attr['autoplay'] = $attr['autoplay']; |
| 245 | } |
| 246 | if ( isset( $attr['loop'] ) ) { |
| 247 | $videopress_attr['loop'] = $attr['loop']; |
| 248 | } |
| 249 | // The core video block doesn't support the cover attribute, setting it to false for consistency. |
| 250 | $videopress_attr['cover'] = false; |
| 251 | |
| 252 | // Then display the VideoPress version of the stored GUID! |
| 253 | return $this->shortcode_callback( $videopress_attr ); |
| 254 | } |
| 255 | |
| 256 | return ''; |
| 257 | } |
| 258 | |
| 259 | /** |
| 260 | * Register a VideoPress handler for direct links to .mov files (and potential other non-handled types later). |
| 261 | */ |
| 262 | public function add_video_embed_hander() { |
| 263 | // These are the video extensions that VideoPress can transcode and considers video as well (even if core does not). |
| 264 | $extensions = array( 'mov' ); |
| 265 | $override_extensions = implode( '|', $extensions ); |
| 266 | |
| 267 | $regex = "#^https?://videos.(videopress.com|files.wordpress.com)/.+?.($override_extensions)$#i"; |
| 268 | |
| 269 | /** This filter is already documented in core/wp-includes/embed.php */ |
| 270 | $filter = apply_filters( 'wp_video_embed_handler', 'wp_embed_handler_video' ); |
| 271 | wp_embed_register_handler( 'video', $regex, $filter, 10 ); |
| 272 | } |
| 273 | } |
| 274 | |
| 275 | VideoPress_Shortcode::initialize(); |
| 276 |