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<?php /** * Kickstarter shortcode * * Usage: * [kickstarter url="https://www.kickstarter.com/projects/peaktoplateau/yak-wool-baselayers-from-tibet-to-the-world" width="480" height=""] * * @package Jetpack */
add_shortcode( 'kickstarter', 'jetpack_kickstarter_shortcode' ); add_filter( 'pre_kses', 'jetpack_kickstarter_embed_to_shortcode' );
/** * Parse shortcode arguments and render its output. * * @since 4.5.0 * * @param array $atts Shortcode parameters. * * @return string */ function jetpack_kickstarter_shortcode( $atts ) { if ( empty( $atts['url'] ) ) { return ''; }
$url = esc_url_raw( $atts['url'] ); if ( ! preg_match( '#^(www\.)?kickstarter\.com$#i', wp_parse_url( $url, PHP_URL_HOST ) ) ) { return '<!-- Invalid Kickstarter URL -->'; }
global $wp_embed; return $wp_embed->shortcode( $atts, $url ); }
/** * Converts Kickstarter iframe embeds to a shortcode. * * EG: <iframe width="480" height="360" src="http://www.kickstarter.com/projects/deweymac/dewey-mac-kid-detective-book-make-diy-and-stem-spy/widget/video.html" frameborder="0" scrolling="no"> </iframe> * * @since 4.5.0 * * @param string $content Entry content that possibly includes a Kickstarter embed. * * @return string */ function jetpack_kickstarter_embed_to_shortcode( $content ) { if ( ! is_string( $content ) || false === stripos( $content, 'www.kickstarter.com/projects' ) ) { return $content; }
$regexp = '!<iframe((?:\s+\w+=[\'"][^\'"]*[\'"])*)\s+src=[\'"](http://www\.kickstarter\.com/projects/[^/]+/[^/]+)/[^\'"]+[\'"]((?:\s+\w+=[\'"][^\'"]*[\'"])*)>[\s]*</iframe>!i'; $regexp_ent = str_replace( '&#0*58;', '&#0*58;|�*58;', htmlspecialchars( $regexp, ENT_NOQUOTES ) ); // phpcs:ignore
foreach ( array( 'regexp', 'regexp_ent' ) as $reg ) { if ( ! preg_match_all( $$reg, $content, $matches, PREG_SET_ORDER ) ) { continue; }
foreach ( $matches as $match ) { $url = esc_url( $match[2] );
$params = $match[1] . $match[3];
if ( 'regexp_ent' === $reg ) { $params = html_entity_decode( $params ); }
$params = wp_kses_hair( $params, array( 'http' ) );
$width = isset( $params['width'] ) ? (int) $params['width']['value'] : 0;
$shortcode = '[kickstarter url=' . $url . ( ( ! empty( $width ) ) ? " width=$width" : '' ) . ']'; $content = str_replace( $match[0], $shortcode, $content ); } }
return $content; }
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