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<?php

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/**

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* Module Name: Shortcode Embeds

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* Module Description: Easily embed rich media like YouTube videos and tweets using simple shortcodes.

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* Sort Order: 3

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* First Introduced: 1.1

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* Major Changes In: 1.2

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* Requires Connection: No

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* Auto Activate: No

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* Module Tags: Photos and Videos, Social, Writing, Appearance

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* Feature: Writing

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* 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

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* @package automattic/jetpack

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if ( ! defined( 'ABSPATH' ) ) {

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exit( 0 );

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}

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// Load shortcode utils.

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require_once __DIR__ . '/shortcodes/shortcode-utils.php';

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/**

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* Transforms the $atts array into a string that the old functions expected

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* The old way was:

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* [shortcode a=1&b=2&c=3] or [shortcode=1]

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* This is parsed as array( a => '1&b=2&c=3' ) and array( 0 => '=1' ), which is useless

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* @param array $params Array of old shortcode parameters.

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* @param bool $old_format_support true if [shortcode=foo] format is possible.

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* @return string $params

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function shortcode_new_to_old_params( $params, $old_format_support = false ) {

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$str = '';

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if ( $old_format_support && isset( $params[0] ) ) {

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$str = ltrim( $params[0], '=' );

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} elseif ( is_array( $params ) ) {

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foreach ( array_keys( $params ) as $key ) {

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if ( ! is_numeric( $key ) ) {

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$str = $key . '=' . $params[ $key ];

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}

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}

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}

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return str_replace( array( '&', '&' ), '&', $str );

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}

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/**

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* Load all available Jetpack shortcode files.

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function jetpack_load_shortcodes() {

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// Prevent third-party shortcode plugins when loading shortcode files.

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// Format: shortcode => condition_when_to_skip

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$shortcode_skips = array(

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'shortcode-utils' => true, // Utils aren't shortcodes.

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'soundcloud' => function_exists( 'soundcloud_shortcode' ), // SoundCloud Shortcodes plugin

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);

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$shortcode_includes = array();

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foreach ( Jetpack::glob_php( __DIR__ . '/shortcodes' ) as $file ) {

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$filename = substr( basename( $file ), 0, -4 );

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if ( empty( $shortcode_skips[ $filename ] ) ) {

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$shortcode_includes[ $filename ] = $file;

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}

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}

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/**

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* This filter allows other plugins to override which shortcodes Jetpack loads.

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* Fires as part of the `after_setup_theme` WP hook, so modifying code needs to be in a plugin, not in a theme's functions.php.

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* @module shortcodes

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* @since 2.2.1

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* @since 4.2.0 Added filename without extension as array key.

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* @param array $shortcode_includes An array of which shortcodes to include.

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$shortcode_includes = apply_filters( 'jetpack_shortcodes_to_include', $shortcode_includes );

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foreach ( $shortcode_includes as $include ) {

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include_once $include;

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}

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}

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/**

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* Runs preg_replace so that replacements don't happen within open tags.

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* Parameters are the same as preg_replace, with an added optional search param for improved performance

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* @param string $pattern Pattern to search for.

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* @param string $replacement String to replace.

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* @param string $content Post content.

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* @param string $search String to search for.

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* @return string $content Replaced post content.

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function jetpack_preg_replace_outside_tags( $pattern, $replacement, $content, $search = null ) {

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if ( $search && ! str_contains( $content, $search ) ) {

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return $content;

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}

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$textarr = wp_html_split( $content );

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unset( $content );

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foreach ( $textarr as &$element ) {

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if ( '' === $element || '<' === $element[0] ) {

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continue;

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}

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$element = preg_replace( $pattern, $replacement, $element );

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}

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return implode( $textarr );

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}

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/**

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* Runs preg_replace_callback so that replacements don't happen within open tags.

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* Parameters are the same as preg_replace, with an added optional search param for improved performance.

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* @param string $pattern Pattern to search for.

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* @param string $callback Callback returning the replacement string.

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* @param string $content Post content.

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* @param string $search String to search for.

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* @return string $content Replaced post content.

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function jetpack_preg_replace_callback_outside_tags( $pattern, $callback, $content, $search = null ) {

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if ( $search && ! str_contains( $content, $search ) ) {

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return $content;

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}

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$textarr = wp_html_split( $content );

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unset( $content );

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foreach ( $textarr as &$element ) {

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if ( '' === $element || '<' === $element[0] ) {

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continue;

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}

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$element = preg_replace_callback( $pattern, $callback, $element );

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}

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return implode( $textarr );

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}

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if ( ! function_exists( 'jetpack_shortcode_get_wpvideo_id' ) ) {

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/**

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* Get VideoPress ID from wpvideo shortcode attributes.

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* @param array $atts Shortcode attributes.

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* @return string|int $id VideoPress ID.

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function jetpack_shortcode_get_wpvideo_id( $atts ) {

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if ( isset( $atts[0] ) ) {

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return $atts[0];

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} else {

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return 0;

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}

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}

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}

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if ( ! function_exists( 'jetpack_shortcode_get_videopress_id' ) ) {

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/**

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* Get VideoPress ID from videopress shortcode attributes.

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* @param array $atts Shortcode attributes.

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* @return int $id VideoPress ID.

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function jetpack_shortcode_get_videopress_id( $atts ) {

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if ( isset( $atts[0] ) ) {

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return $atts[0];

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} else {

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return 0;

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}

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}

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}

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/**

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* Common element attributes parsing and sanitizing for src, width and height.

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* @since 4.5.0

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* @param array $attrs With original values.

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* @return array $attrs With sanitized values.

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function wpcom_shortcodereverse_parseattr( $attrs ) {

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$defaults = array(

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'src' => false,

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'width' => false,

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'height' => false,

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);

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$attrs = shortcode_atts( $defaults, $attrs );

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$attrs['src'] = wp_strip_all_tags( $attrs['src'] ); // For sanity.

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$attrs['width'] = ( is_numeric( $attrs['width'] ) ) ? abs( (int) $attrs['width'] ) : $defaults['width'];

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$attrs['height'] = ( is_numeric( $attrs['height'] ) ) ? abs( (int) $attrs['height'] ) : $defaults['height'];

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return $attrs;

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}

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/**

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* When an embed service goes away, we can use this handler

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* to output a link for history's sake.

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* @param array $matches Regex partial matches against the URL passed.

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* @param array $attr Attributes received in embed response.

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* @param string $url Requested URL to be embedded.

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* @return string Link to output.

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function jetpack_deprecated_embed_handler( $matches, $attr, $url ) {

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return sprintf( '<a href="%s">%s</a>', esc_url( $url ), esc_html( esc_url( $url ) ) );

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}

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jetpack_load_shortcodes();

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