shortcodes.php
| 1 | <?php |
| 2 | /** |
| 3 | * Module Name: Shortcode Embeds |
| 4 | * Module Description: Shortcodes are WordPress-specific markup that let you add media from popular sites. This feature is no longer necessary as the editor now handles media embeds rather gracefully. |
| 5 | * Sort Order: 3 |
| 6 | * First Introduced: 1.1 |
| 7 | * Major Changes In: 1.2 |
| 8 | * Requires Connection: No |
| 9 | * Auto Activate: No |
| 10 | * Module Tags: Photos and Videos, Social, Writing, Appearance |
| 11 | * Feature: Writing |
| 12 | * Additional Search Queries: shortcodes, shortcode, embeds, media, bandcamp, dailymotion, facebook, flickr, google calendars, google maps, polldaddy, recipe, recipes, scribd, slideshare, slideshow, slideshows, soundcloud, ted, twitter, vimeo, vine, youtube |
| 13 | * |
| 14 | * @package automattic/jetpack |
| 15 | */ |
| 16 | |
| 17 | /** |
| 18 | * Transforms the $atts array into a string that the old functions expected |
| 19 | * |
| 20 | * The old way was: |
| 21 | * [shortcode a=1&b=2&c=3] or [shortcode=1] |
| 22 | * This is parsed as array( a => '1&b=2&c=3' ) and array( 0 => '=1' ), which is useless |
| 23 | * |
| 24 | * @param array $params Array of old shortcode parameters. |
| 25 | * @param bool $old_format_support true if [shortcode=foo] format is possible. |
| 26 | * |
| 27 | * @return string $params |
| 28 | */ |
| 29 | function shortcode_new_to_old_params( $params, $old_format_support = false ) { |
| 30 | $str = ''; |
| 31 | |
| 32 | if ( $old_format_support && isset( $params[0] ) ) { |
| 33 | $str = ltrim( $params[0], '=' ); |
| 34 | } elseif ( is_array( $params ) ) { |
| 35 | foreach ( array_keys( $params ) as $key ) { |
| 36 | if ( ! is_numeric( $key ) ) { |
| 37 | $str = $key . '=' . $params[ $key ]; |
| 38 | } |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | return str_replace( array( '&', '&' ), '&', $str ); |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * Load all available Jetpack shortcode files. |
| 47 | */ |
| 48 | function jetpack_load_shortcodes() { |
| 49 | $shortcode_includes = array(); |
| 50 | |
| 51 | foreach ( Jetpack::glob_php( __DIR__ . '/shortcodes' ) as $file ) { |
| 52 | $filename = substr( basename( $file ), 0, -4 ); |
| 53 | |
| 54 | $shortcode_includes[ $filename ] = $file; |
| 55 | } |
| 56 | |
| 57 | /** |
| 58 | * This filter allows other plugins to override which shortcodes Jetpack loads. |
| 59 | * |
| 60 | * Fires as part of the `plugins_loaded` WP hook, so modifying code needs to be in a plugin, not in a theme's functions.php. |
| 61 | * |
| 62 | * @module shortcodes |
| 63 | * |
| 64 | * @since 2.2.1 |
| 65 | * @since 4.2.0 Added filename without extension as array key. |
| 66 | * |
| 67 | * @param array $shortcode_includes An array of which shortcodes to include. |
| 68 | */ |
| 69 | $shortcode_includes = apply_filters( 'jetpack_shortcodes_to_include', $shortcode_includes ); |
| 70 | |
| 71 | foreach ( $shortcode_includes as $include ) { |
| 72 | include_once $include; |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * Runs preg_replace so that replacements don't happen within open tags. |
| 78 | * Parameters are the same as preg_replace, with an added optional search param for improved performance |
| 79 | * |
| 80 | * @param string $pattern Pattern to search for. |
| 81 | * @param string $replacement String to replace. |
| 82 | * @param string $content Post content. |
| 83 | * @param string $search String to search for. |
| 84 | * |
| 85 | * @return string $content Replaced post content. |
| 86 | */ |
| 87 | function jetpack_preg_replace_outside_tags( $pattern, $replacement, $content, $search = null ) { |
| 88 | if ( $search && false === strpos( $content, $search ) ) { |
| 89 | return $content; |
| 90 | } |
| 91 | |
| 92 | $textarr = wp_html_split( $content ); |
| 93 | unset( $content ); |
| 94 | foreach ( $textarr as &$element ) { |
| 95 | if ( '' === $element || '<' === $element[0] ) { |
| 96 | continue; |
| 97 | } |
| 98 | $element = preg_replace( $pattern, $replacement, $element ); |
| 99 | } |
| 100 | |
| 101 | return join( $textarr ); |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * Runs preg_replace_callback so that replacements don't happen within open tags. |
| 106 | * Parameters are the same as preg_replace, with an added optional search param for improved performance. |
| 107 | * |
| 108 | * @param string $pattern Pattern to search for. |
| 109 | * @param string $callback Callback returning the replacement string. |
| 110 | * @param string $content Post content. |
| 111 | * @param string $search String to search for. |
| 112 | * |
| 113 | * @return string $content Replaced post content. |
| 114 | */ |
| 115 | function jetpack_preg_replace_callback_outside_tags( $pattern, $callback, $content, $search = null ) { |
| 116 | if ( $search && false === strpos( $content, $search ) ) { |
| 117 | return $content; |
| 118 | } |
| 119 | |
| 120 | $textarr = wp_html_split( $content ); |
| 121 | unset( $content ); |
| 122 | foreach ( $textarr as &$element ) { |
| 123 | if ( '' === $element || '<' === $element[0] ) { |
| 124 | continue; |
| 125 | } |
| 126 | $element = preg_replace_callback( $pattern, $callback, $element ); |
| 127 | } |
| 128 | |
| 129 | return join( $textarr ); |
| 130 | } |
| 131 | |
| 132 | if ( ! function_exists( 'jetpack_shortcode_get_wpvideo_id' ) ) { |
| 133 | /** |
| 134 | * Get VideoPress ID from wpvideo shortcode attributes. |
| 135 | * |
| 136 | * @param array $atts Shortcode attributes. |
| 137 | * @return int $id VideoPress ID. |
| 138 | */ |
| 139 | function jetpack_shortcode_get_wpvideo_id( $atts ) { |
| 140 | if ( isset( $atts[0] ) ) { |
| 141 | return $atts[0]; |
| 142 | } else { |
| 143 | return 0; |
| 144 | } |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | if ( ! function_exists( 'jetpack_shortcode_get_videopress_id' ) ) { |
| 149 | /** |
| 150 | * Get VideoPress ID from videopress shortcode attributes. |
| 151 | * |
| 152 | * @param array $atts Shortcode attributes. |
| 153 | * @return int $id VideoPress ID. |
| 154 | */ |
| 155 | function jetpack_shortcode_get_videopress_id( $atts ) { |
| 156 | if ( isset( $atts[0] ) ) { |
| 157 | return $atts[0]; |
| 158 | } else { |
| 159 | return 0; |
| 160 | } |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | /** |
| 165 | * Common element attributes parsing and sanitizing for src, width and height. |
| 166 | * |
| 167 | * @since 4.5.0 |
| 168 | * |
| 169 | * @param array $attrs With original values. |
| 170 | * |
| 171 | * @return array $attrs With sanitized values. |
| 172 | */ |
| 173 | function wpcom_shortcodereverse_parseattr( $attrs ) { |
| 174 | $defaults = array( |
| 175 | 'src' => false, |
| 176 | 'width' => false, |
| 177 | 'height' => false, |
| 178 | ); |
| 179 | |
| 180 | $attrs = shortcode_atts( $defaults, $attrs ); |
| 181 | |
| 182 | $attrs['src'] = wp_strip_all_tags( $attrs['src'] ); // For sanity. |
| 183 | $attrs['width'] = ( is_numeric( $attrs['width'] ) ) ? abs( (int) $attrs['width'] ) : $defaults['width']; |
| 184 | $attrs['height'] = ( is_numeric( $attrs['height'] ) ) ? abs( (int) $attrs['height'] ) : $defaults['height']; |
| 185 | |
| 186 | return $attrs; |
| 187 | } |
| 188 | |
| 189 | /** |
| 190 | * When an embed service goes away, we can use this handler |
| 191 | * to output a link for history's sake. |
| 192 | * |
| 193 | * @param array $matches Regex partial matches against the URL passed. |
| 194 | * @param array $attr Attributes received in embed response. |
| 195 | * @param string $url Requested URL to be embedded. |
| 196 | * @return string Link to output. |
| 197 | */ |
| 198 | function jetpack_deprecated_embed_handler( $matches, $attr, $url ) { |
| 199 | return sprintf( '<a href="%s">%s</a>', esc_url( $url ), esc_html( esc_url( $url ) ) ); |
| 200 | } |
| 201 | |
| 202 | jetpack_load_shortcodes(); |
| 203 |