| @@ -1,0 +1,86 @@ | ||
| 1 | +<?php | |
| 2 | +/** | |
| 3 | + * Kickstarter shortcode | |
| 4 | + * | |
| 5 | + * Usage: | |
| 6 | + * [kickstarter url="https://www.kickstarter.com/projects/peaktoplateau/yak-wool-baselayers-from-tibet-to-the-world" width="480" height=""] | |
| 7 | + * | |
| 8 | + * @package automattic/jetpack | |
| 9 | + */ | |
| 10 | + | |
| 11 | +if ( ! defined( 'ABSPATH' ) ) { | |
| 12 | + exit( 0 ); | |
| 13 | +} | |
| 14 | + | |
| 15 | +add_shortcode( 'kickstarter', 'jetpack_kickstarter_shortcode' ); | |
| 16 | +if ( jetpack_shortcodes_should_hook_pre_kses() ) { | |
| 17 | + add_filter( 'pre_kses', 'jetpack_kickstarter_embed_to_shortcode' ); | |
| 18 | +} | |
| 19 | + | |
| 20 | +/** | |
| 21 | + * Parse shortcode arguments and render its output. | |
| 22 | + * | |
| 23 | + * @since 4.5.0 | |
| 24 | + * | |
| 25 | + * @param array $atts Shortcode parameters. | |
| 26 | + * | |
| 27 | + * @return string | |
| 28 | + */ | |
| 29 | +function jetpack_kickstarter_shortcode( $atts ) { | |
| 30 | + if ( empty( $atts['url'] ) ) { | |
| 31 | + return ''; | |
| 32 | + } | |
| 33 | + | |
| 34 | + $url = esc_url_raw( $atts['url'] ); | |
| 35 | + if ( ! preg_match( '#^(www\.)?kickstarter\.com$#i', wp_parse_url( $url, PHP_URL_HOST ) ) ) { | |
| 36 | + return '<!-- Invalid Kickstarter URL -->'; | |
| 37 | + } | |
| 38 | + | |
| 39 | + global $wp_embed; | |
| 40 | + return $wp_embed->shortcode( $atts, $url ); | |
| 41 | +} | |
| 42 | + | |
| 43 | +/** | |
| 44 | + * Converts Kickstarter iframe embeds to a shortcode. | |
| 45 | + * | |
| 46 | + * 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> | |
| 47 | + * | |
| 48 | + * @since 4.5.0 | |
| 49 | + * | |
| 50 | + * @param string $content Entry content that possibly includes a Kickstarter embed. | |
| 51 | + * | |
| 52 | + * @return string | |
| 53 | + */ | |
| 54 | +function jetpack_kickstarter_embed_to_shortcode( $content ) { | |
| 55 | + if ( ! is_string( $content ) || false === stripos( $content, 'www.kickstarter.com/projects' ) ) { | |
| 56 | + return $content; | |
| 57 | + } | |
| 58 | + | |
| 59 | + $regexp = '!<iframe((?:\s+\w+=[\'"][^\'"]*[\'"])*)\s+src=[\'"](http://www\.kickstarter\.com/projects/[^/]+/[^/]+)/[^\'"]+[\'"]((?:\s+\w+=[\'"][^\'"]*[\'"])*)>[\s]*</iframe>!i'; | |
| 60 | + $regexp_ent = str_replace( '&#0*58;', '&#0*58;|�*58;', htmlspecialchars( $regexp, ENT_NOQUOTES ) ); // phpcs:ignore | |
| 61 | + | |
| 62 | + foreach ( array( 'regexp', 'regexp_ent' ) as $reg ) { | |
| 63 | + if ( ! preg_match_all( $$reg, $content, $matches, PREG_SET_ORDER ) ) { | |
| 64 | + continue; | |
| 65 | + } | |
| 66 | + | |
| 67 | + foreach ( $matches as $match ) { | |
| 68 | + $url = esc_url( $match[2] ); | |
| 69 | + | |
| 70 | + $params = $match[1] . $match[3]; | |
| 71 | + | |
| 72 | + if ( 'regexp_ent' === $reg ) { | |
| 73 | + $params = html_entity_decode( $params, ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401 ); | |
| 74 | + } | |
| 75 | + | |
| 76 | + $params = wp_kses_hair( $params, array( 'http' ) ); | |
| 77 | + | |
| 78 | + $width = isset( $params['width'] ) ? (int) $params['width']['value'] : 0; | |
| 79 | + | |
| 80 | + $shortcode = '[kickstarter url=' . $url . ( ( ! empty( $width ) ) ? " width=$width" : '' ) . ']'; | |
| 81 | + $content = str_replace( $match[0], $shortcode, $content ); | |
| 82 | + } | |
| 83 | + } | |
| 84 | + | |
| 85 | + return $content; | |
| 86 | +} | |