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| 1 | +<?php | |
| 2 | +/** | |
| 3 | + * Flickr Short Code | |
| 4 | + * Author: kellan | |
| 5 | + * License: BSD/GPL/public domain (take your pick) | |
| 6 | + * | |
| 7 | + * [flickr video=www.flickr.com/photos/kalakeli/49931239842] | |
| 8 | + * [flickr video=49931239842] | |
| 9 | + * [flickr video=49931239842 w=200 h=150] | |
| 10 | + * [flickr video=49931239842 autoplay="yes" controls="no"] | |
| 11 | + * [flickr video=49931239842 autoplay="no" controls="yes" w=200 h=150] | |
| 12 | + * | |
| 13 | + * <div class="flick_video" style="max-width: 100%;width: 500px;height: 300px;"><video src="https://www.flickr.com/photos/kalakeli/49931239842/play/360p/183f75d545/" controls autoplay ></video></div> | |
| 14 | + * | |
| 15 | + * @package automattic/jetpack | |
| 16 | + */ | |
| 17 | + | |
| 18 | +if ( ! defined( 'ABSPATH' ) ) { | |
| 19 | + exit( 0 ); | |
| 20 | +} | |
| 21 | + | |
| 22 | +/** | |
| 23 | + * Transform embed to shortcode on save. | |
| 24 | + * | |
| 25 | + * @param string $content Post content. | |
| 26 | + * | |
| 27 | + * @return string Shortcode or the embed content itself. | |
| 28 | + */ | |
| 29 | +function flickr_embed_to_shortcode( $content ) { | |
| 30 | + if ( ! is_string( $content ) ) { | |
| 31 | + return $content; | |
| 32 | + } | |
| 33 | + | |
| 34 | + if ( str_contains( $content, '<div class="flickr_video"' ) && str_contains( $content, '<video' ) ) { | |
| 35 | + return jetpack_flickr_video_to_shortcode( $content ); | |
| 36 | + } elseif ( preg_match( '/<iframe src="(https?:)?\/\/([\da-z\-]+\.)*?((static)?flickr\.com|flic\.kr)\/[^\"]+\"/', $content ) ) { | |
| 37 | + return jetpack_flickr_photo_to_shortcode( $content ); | |
| 38 | + } | |
| 39 | + | |
| 40 | + return $content; | |
| 41 | +} | |
| 42 | + | |
| 43 | +/** | |
| 44 | + * Transforms embed to shortcode on save when the photo param is used. | |
| 45 | + * If embed content cannot be transformed to a valid shortcode, | |
| 46 | + * the embed content itself is returned. | |
| 47 | + * | |
| 48 | + * @param string $content Embed output. | |
| 49 | + * | |
| 50 | + * @return string Shortcode or the embed content. | |
| 51 | + */ | |
| 52 | +function jetpack_flickr_photo_to_shortcode( $content ) { | |
| 53 | + preg_match( '/<iframe src=\"([^\"]+)\"(\s+height=\"([^\"]*)\")?(\s+width=\"([^\"]*)\")?/', $content, $matches ); | |
| 54 | + | |
| 55 | + if ( empty( $matches[1] ) ) { | |
| 56 | + return $content; | |
| 57 | + } | |
| 58 | + | |
| 59 | + $src = esc_attr( str_replace( 'player/', '', $matches[1] ) ); | |
| 60 | + $height = empty( $matches[3] ) ? '' : esc_attr( $matches[3] ); | |
| 61 | + $width = empty( $matches[5] ) ? '' : esc_attr( $matches[5] ); | |
| 62 | + | |
| 63 | + /** This action is documented in modules/shortcodes/youtube.php */ | |
| 64 | + do_action( 'jetpack_embed_to_shortcode', 'flickr_photo', $src ); | |
| 65 | + | |
| 66 | + return '[flickr photo="' . $src . '" w=' . $width . ' h=' . $height . ']'; | |
| 67 | +} | |
| 68 | + | |
| 69 | +/** | |
| 70 | + * Transforms embed to shortcode on save when the video param is used. | |
| 71 | + * If embed content cannot be transformed to a valid shortcode, | |
| 72 | + * the embed content itself is returned. | |
| 73 | + * | |
| 74 | + * @param string $content Embed output. | |
| 75 | + * | |
| 76 | + * @return string Shortcode or the embed content. | |
| 77 | + */ | |
| 78 | +function jetpack_flickr_video_to_shortcode( $content ) { | |
| 79 | + // Get video src. | |
| 80 | + preg_match( '/<video src=\"([^\"]+)\"/', $content, $matches ); | |
| 81 | + | |
| 82 | + if ( empty( $matches[1] ) ) { | |
| 83 | + return $content; | |
| 84 | + } | |
| 85 | + | |
| 86 | + preg_match( '/(https?:)?\/\/([\da-z\-]+\.)*?((static)?flickr\.com|flic\.kr)\/photos\/([^\/]+)\/\d+\//', $matches[1], $matches ); | |
| 87 | + | |
| 88 | + $video_src = esc_attr( $matches[0] ); | |
| 89 | + | |
| 90 | + // Get width and height. | |
| 91 | + | |
| 92 | + preg_match( '/style=\"max-width: 100%;(width:\s(\d+)px;)?(height:\s(\d+)px;)?/', $content, $matches ); | |
| 93 | + | |
| 94 | + $width = empty( $matches[2] ) ? '' : 'w=' . esc_attr( $matches[2] ); | |
| 95 | + | |
| 96 | + $height = empty( $matches[4] ) ? '' : 'h=' . esc_attr( $matches[4] ); | |
| 97 | + | |
| 98 | + $controls = str_contains( $content, 'controls' ) ? 'yes' : 'no'; | |
| 99 | + | |
| 100 | + $autoplay = str_contains( $content, 'autoplay' ) ? 'yes' : 'no'; | |
| 101 | + | |
| 102 | + /** This action is documented in modules/shortcodes/youtube.php */ | |
| 103 | + do_action( 'jetpack_embed_to_shortcode', 'flickr_video', $video_src ); | |
| 104 | + | |
| 105 | + return '[flickr video="' . $video_src . '" ' . $width . ' ' . $height . ' controls="' . $controls . '" autoplay="' . $autoplay . '"]'; | |
| 106 | +} | |
| 107 | + | |
| 108 | +if ( jetpack_shortcodes_should_hook_pre_kses() ) { | |
| 109 | + add_filter( 'pre_kses', 'flickr_embed_to_shortcode' ); | |
| 110 | +} | |
| 111 | + | |
| 112 | +/** | |
| 113 | + * Flickr Shortcode handler. | |
| 114 | + * | |
| 115 | + * @param array $atts Shortcode attributes. | |
| 116 | + * | |
| 117 | + * @return string Shortcode Output. | |
| 118 | + */ | |
| 119 | +function flickr_shortcode_handler( $atts ) { | |
| 120 | + $atts = shortcode_atts( | |
| 121 | + array( | |
| 122 | + 'video' => 0, | |
| 123 | + 'photo' => 0, | |
| 124 | + 'w' => '', | |
| 125 | + 'h' => '', | |
| 126 | + 'controls' => 'yes', | |
| 127 | + 'autoplay' => '', | |
| 128 | + ), | |
| 129 | + $atts, | |
| 130 | + 'flickr' | |
| 131 | + ); | |
| 132 | + | |
| 133 | + if ( ! empty( $atts['video'] ) ) { | |
| 134 | + $showing = 'video'; | |
| 135 | + $src = $atts['video']; | |
| 136 | + } elseif ( ! empty( $atts['photo'] ) ) { | |
| 137 | + $showing = 'photo'; | |
| 138 | + $src = $atts['photo']; | |
| 139 | + } else { | |
| 140 | + return ''; | |
| 141 | + } | |
| 142 | + | |
| 143 | + $src = str_replace( 'http://', 'https://', $src ); | |
| 144 | + | |
| 145 | + if ( 'video' === $showing ) { | |
| 146 | + | |
| 147 | + $video_id = flick_shortcode_video_id( $src ); | |
| 148 | + | |
| 149 | + if ( empty( $video_id ) ) { | |
| 150 | + return ''; | |
| 151 | + } | |
| 152 | + | |
| 153 | + $atts = array_map( 'esc_attr', $atts ); | |
| 154 | + return flickr_shortcode_video_markup( $atts, $video_id, $src ); | |
| 155 | + } elseif ( 'photo' === $showing ) { | |
| 156 | + | |
| 157 | + if ( ! preg_match( '~^(https?:)?//([\da-z\-]+\.)*?((static)?flickr\.com|flic\.kr)/.*~i', $src ) ) { | |
| 158 | + return ''; | |
| 159 | + } | |
| 160 | + | |
| 161 | + $height = empty( $atts['h'] ) ? 'auto' : esc_attr( $atts['h'] ); | |
| 162 | + | |
| 163 | + $src = sprintf( '%s/player/', untrailingslashit( $src ) ); | |
| 164 | + | |
| 165 | + $allow_full_screen = 'allowfullscreen webkitallowfullscreen mozallowfullscreen oallowfullscreen msallowfullscreen'; | |
| 166 | + | |
| 167 | + if ( class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request() ) { | |
| 168 | + $allow_full_screen = str_replace( ' oallowfullscreen msallowfullscreen', '', $allow_full_screen ); | |
| 169 | + } | |
| 170 | + | |
| 171 | + return sprintf( '<iframe src="%s" height="%s" width="%s" frameborder="0" %s></iframe>', esc_url( $src ), $height, esc_attr( $atts['w'] ), $allow_full_screen ); | |
| 172 | + } | |
| 173 | + | |
| 174 | + return false; | |
| 175 | +} | |
| 176 | + | |
| 177 | +/** | |
| 178 | + * Return HTML markup for a Flickr embed. | |
| 179 | + * | |
| 180 | + * @param array $atts Shortcode attributes. | |
| 181 | + * @param string $id Video ID. | |
| 182 | + * @param string $video_param video param of the shortcode. | |
| 183 | + * | |
| 184 | + * @return string Shortcode ouput for video. | |
| 185 | + */ | |
| 186 | +function flickr_shortcode_video_markup( $atts, $id, $video_param ) { | |
| 187 | + | |
| 188 | + $transient_name = "flickr_video_$id"; | |
| 189 | + $video_src = get_transient( $transient_name ); | |
| 190 | + | |
| 191 | + if ( empty( $video_src ) ) { | |
| 192 | + $video_url = ''; | |
| 193 | + if ( ! is_numeric( $video_param ) ) { | |
| 194 | + $video_url = $video_param; | |
| 195 | + } else { | |
| 196 | + // Get the URL of the video from the page of the video. | |
| 197 | + $video_page_content = wp_remote_get( "https://flickr.com/photo.gne?id=$video_param" ); | |
| 198 | + // Bail if we do not get any info from Flickr. | |
| 199 | + if ( is_wp_error( $video_page_content ) ) { | |
| 200 | + return ''; | |
| 201 | + } | |
| 202 | + | |
| 203 | + // Extract the URL from the og:url meta tag. | |
| 204 | + preg_match( '/property=\"og:url\"\scontent=\"([^\"]+)\"/', $video_page_content['body'], $matches ); | |
| 205 | + if ( empty( $matches[1] ) ) { | |
| 206 | + return ''; | |
| 207 | + } | |
| 208 | + $video_url = $matches[1]; | |
| 209 | + } | |
| 210 | + | |
| 211 | + $provider = 'https://www.flickr.com/services/oembed/'; | |
| 212 | + $oembed = _wp_oembed_get_object(); | |
| 213 | + $data = (array) $oembed->fetch( $provider, $video_url ); | |
| 214 | + if ( empty( $data['html'] ) ) { | |
| 215 | + return ''; | |
| 216 | + } | |
| 217 | + | |
| 218 | + // Get the embed url. | |
| 219 | + preg_match( '/src=\"([^\"]+)\"/', $data['html'], $matches ); | |
| 220 | + | |
| 221 | + if ( empty( $matches[1] ) ) { | |
| 222 | + return ''; | |
| 223 | + } | |
| 224 | + $embed_url = $matches[1]; | |
| 225 | + | |
| 226 | + $embed_page = wp_remote_get( $embed_url ); | |
| 227 | + | |
| 228 | + // Bail if the request returns an error. | |
| 229 | + if ( ! is_array( $embed_page ) ) { | |
| 230 | + return ''; | |
| 231 | + } | |
| 232 | + | |
| 233 | + // Get the video url from embed html markup. | |
| 234 | + | |
| 235 | + preg_match( '/video.+src=\"([^\"]+)\"/', $embed_page['body'], $matches ); | |
| 236 | + if ( ! empty( $matches[1] ) ) { | |
| 237 | + $video_src = $matches[1]; | |
| 238 | + set_transient( $transient_name, $video_src, 2592000 ); // 30 days transient. | |
| 239 | + } | |
| 240 | + } | |
| 241 | + | |
| 242 | + $style = 'max-width: 100%;'; | |
| 243 | + | |
| 244 | + if ( ! empty( $atts['w'] ) && is_numeric( $atts['w'] ) ) { | |
| 245 | + $style .= sprintf( 'width: %dpx;', $atts['w'] ); | |
| 246 | + } | |
| 247 | + | |
| 248 | + if ( ! empty( $atts['h'] ) && is_numeric( $atts['h'] ) ) { | |
| 249 | + $style .= sprintf( 'height: %dpx;', $atts['h'] ); | |
| 250 | + } | |
| 251 | + | |
| 252 | + $controls = 'yes' === $atts['controls'] ? 'controls' : ''; | |
| 253 | + $autoplay = 'yes' === $atts['autoplay'] ? 'autoplay' : ''; | |
| 254 | + | |
| 255 | + return sprintf( | |
| 256 | + '<div class="flick_video" style="%s"><video src="%s" %s %s /></div>', | |
| 257 | + esc_attr( $style ), | |
| 258 | + esc_attr( $video_src ), | |
| 259 | + $controls, | |
| 260 | + $autoplay | |
| 261 | + ); | |
| 262 | +} | |
| 263 | + | |
| 264 | +/** | |
| 265 | + * Extract the id of the flickr video from the video param. | |
| 266 | + * | |
| 267 | + * @param string $video_param Video parameter of the shortcode. | |
| 268 | + * | |
| 269 | + * @return string|boolean ID of the video or false in case the ID can not be extracted. | |
| 270 | + */ | |
| 271 | +function flick_shortcode_video_id( $video_param ) { | |
| 272 | + if ( preg_match( '/^https?:\/\/(www\.)?flickr\.com\/.+/', $video_param ) || preg_match( '/^https?:\/\/flic\.kr\/.+/', $video_param ) ) { | |
| 273 | + | |
| 274 | + // Extract the video id from the url. | |
| 275 | + preg_match( '/\d+/', $video_param, $matches ); | |
| 276 | + | |
| 277 | + if ( empty( $matches ) ) { | |
| 278 | + return false; | |
| 279 | + } | |
| 280 | + | |
| 281 | + return $matches[0]; | |
| 282 | + | |
| 283 | + } elseif ( is_numeric( $video_param ) ) { | |
| 284 | + return $video_param; | |
| 285 | + } | |
| 286 | + | |
| 287 | + return false; | |
| 288 | +} | |
| 289 | + | |
| 290 | +add_shortcode( 'flickr', 'flickr_shortcode_handler' ); | |
| 291 | + | |
| 292 | +// Override core's Flickr support because Flickr oEmbed doesn't support web embeds. | |
| 293 | +wp_embed_register_handler( 'flickr', '#https?://(www\.)?flickr\.com/.*#i', 'jetpack_flickr_oembed_handler' ); | |
| 294 | + | |
| 295 | +/** | |
| 296 | + * Callback to modify output of embedded Vimeo video using Jetpack's shortcode. | |
| 297 | + * | |
| 298 | + * @since 3.9 | |
| 299 | + * | |
| 300 | + * @param array $matches Regex partial matches against the URL passed. | |
| 301 | + * @param array $attr Attributes received in embed response. | |
| 302 | + * @param string $url Requested URL to be embedded. | |
| 303 | + * | |
| 304 | + * @return string Return output of Vimeo shortcode with the proper markup. | |
| 305 | + */ | |
| 306 | +function jetpack_flickr_oembed_handler( $matches, $attr, $url ) { | |
| 307 | + /* | |
| 308 | + * Legacy slideshow embeds end with /show/ | |
| 309 | + * e.g. https://www.flickr.com/photos/yarnaholic/sets/72157615194738969/show/ | |
| 310 | + */ | |
| 311 | + if ( '/show/' !== substr( $url, -strlen( '/show/' ) ) ) { | |
| 312 | + // These lookups need cached, as they don't use WP_Embed (which caches). | |
| 313 | + $cache_key = md5( $url . wp_json_encode( $attr, JSON_UNESCAPED_SLASHES ) ); | |
| 314 | + $cache_group = 'oembed_flickr'; | |
| 315 | + | |
| 316 | + $html = wp_cache_get( $cache_key, $cache_group ); | |
| 317 | + | |
| 318 | + if ( false === $html ) { | |
| 319 | + $html = _wp_oembed_get_object()->get_html( $url, $attr ); | |
| 320 | + | |
| 321 | + wp_cache_set( $cache_key, $html, $cache_group, 60 * MINUTE_IN_SECONDS ); | |
| 322 | + } | |
| 323 | + | |
| 324 | + return $html; | |
| 325 | + } | |
| 326 | + | |
| 327 | + return flickr_shortcode_handler( array( 'photo' => $url ) ); | |
| 328 | +} | |
