File: /var/www/indoadvisory/wp/wp-content/plugins/polylang-pro/modules/sync/sync-content.php
<?php
/**
* @package Polylang-Pro
*/
/**
* Smart copy of post content
*
* @since 2.6
*/
class PLL_Sync_Content {
/**
* Stores the plugin options.
*
* @var array
*/
protected $options;
/**
* @var PLL_Model
*/
protected $model;
/**
* Instance of a child class of PLL_Links_Model.
*
* @var PLL_Links_Model
*/
protected $links_model;
/**
* @var PLL_CRUD_Posts
*/
protected $posts;
/**
* The post object to fill with translated data.
*
* @var WP_Post
*/
protected $target_post;
/**
* Language of the target post.
*
* @var PLL_Language
*/
protected $target_language;
/**
* Language of the source post.
*
* @var PLL_Language
*/
protected $from_language;
/**
* Constructor
*
* @since 1.9
*
* @param PLL_Frontend|PLL_Admin|PLL_Settings|PLL_REST_Request $polylang Polylang object.
*/
public function __construct( &$polylang ) {
$this->options = &$polylang->options;
$this->model = &$polylang->model;
$this->posts = &$polylang->posts;
}
/**
* Copy the content from one post to the other
*
* @since 1.9
*
* @param WP_Post $from_post The post to copy from.
* @param WP_Post $target_post The post to copy to.
* @param PLL_Language|string $target_language The language of the post to copy to.
* @return WP_Post|void
*/
public function copy_content( $from_post, $target_post, $target_language ) {
$from_language = $this->model->post->get_language( $from_post->ID );
$target_language = $this->model->get_language( $target_language );
if ( ! $from_language || ! $target_language ) {
return;
}
$target_post->post_title = $from_post->post_title;
$target_post->post_name = wp_unique_post_slug(
$from_post->post_name,
$target_post->ID,
$target_post->post_status,
$target_post->post_type,
$target_post->post_parent
);
$target_post->post_excerpt = $this->translate_content(
$from_post->post_excerpt,
$target_post,
$from_language,
$target_language
);
$target_post->post_content = $this->translate_content(
$from_post->post_content,
$target_post,
$from_language,
$target_language
);
return $target_post;
}
/**
* Translate shortcodes and <img> attributes in a given text
*
* @since 1.9
* @since 3.3 Requires $target_post, $from_language and $target_language parameters.
* @global array $shortcode_tags
*
* @param string $content Text to translate.
* @param WP_Post $target_post The post object to populate with translated content.
* @param PLL_Language $from_language The source language .
* @param PLL_Language $target_language The language to translate to.
* @return string Translated text
*/
public function translate_content( $content, $target_post, PLL_Language $from_language, PLL_Language $target_language ) {
global $shortcode_tags;
$this->target_post = $target_post;
$this->from_language = $from_language;
$this->target_language = $target_language;
// Hack shortcodes.
$backup = $shortcode_tags;
$shortcode_tags = array(); // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
// Add our own shorcode actions.
if ( $this->options['media_support'] ) {
add_shortcode( 'gallery', array( $this, 'ids_list_shortcode' ) );
add_shortcode( 'playlist', array( $this, 'ids_list_shortcode' ) );
add_shortcode( 'caption', array( $this, 'caption_shortcode' ) );
add_shortcode( 'wp_caption', array( $this, 'caption_shortcode' ) );
}
if ( has_blocks( $content ) ) {
$blocks = parse_blocks( $content );
$blocks = $this->translate_blocks( $blocks );
$content = serialize_blocks( $blocks );
} else {
$content = do_shortcode( $content ); // Translate shortcodes.
$content = $this->translate_html( $content );
}
// Get the shorcodes back.
$shortcode_tags = $backup; // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
return $content;
}
/**
* Duplicates the feature image if the translation does not exist yet.
*
* @since 2.3
*
* @param int $id Thumbnail ID.
* @param string $key Meta key.
* @param string $lang Language code.
* @return int
*/
public function duplicate_thumbnail( $id, $key, $lang ) {
if ( '_thumbnail_id' === $key && ! $tr_id = $this->model->post->get( $id, $lang ) ) {
$tr_id = $this->posts->create_media_translation( $id, $lang );
}
return empty( $tr_id ) ? $id : $tr_id;
}
/**
* Duplicates a term if the translation does not exist yet.
*
* @since 2.3
*
* @param int $tr_term_id Translated term id.
* @param int $term_id Source term id.
* @param string $lang Language slug.
* @return int The translated term id. O on failure.
*/
public function duplicate_term( $tr_term_id, $term_id, $lang ) {
if ( empty( $tr_term_id ) ) {
$term = get_term( $term_id );
if ( $term instanceof WP_Term ) {
$language = $this->model->term->get_language( $term->term_id );
if ( $language && $language->slug !== $lang ) { // Create a new term translation only if the source term has a language.
$tr_parent = empty( $term->parent ) ? 0 : (int) $this->model->term->get_translation( $term->parent, $lang );
// Duplicate the parent if the parent translation doesn't exist yet.
if ( empty( $tr_parent ) && ! empty( $term->parent ) ) {
$tr_parent = $this->duplicate_term( 0, $term->parent, $lang );
}
$args = array(
'description' => wp_slash( $term->description ),
'parent' => $tr_parent,
);
if ( $this->options['force_lang'] ) {
// Share slugs
$args['slug'] = $term->slug . '___' . $lang;
} else {
// Language set from the content: assign a different slug
// otherwise we would change the current term language instead of creating a new term
$args['slug'] = sanitize_title( $term->name ) . '-' . $lang;
}
$t = wp_insert_term( wp_slash( $term->name ), $term->taxonomy, $args );
$tr_term_id = 0;
if ( is_array( $t ) ) {
$tr_term_id = $t['term_id'];
$this->model->term->set_language( $tr_term_id, $lang );
$translations = $this->model->term->get_translations( $term->term_id );
$translations[ $lang ] = $tr_term_id;
$this->model->term->save_translations( $term->term_id, $translations );
/**
* Fires after a term translation is automatically created when duplicating a post.
*
* @since 2.3.8
*
* @param int $from Term ID of the source term.
* @param int $to Term ID of the new term translation.
* @param string $lang Language code of the new translation.
*/
do_action( 'pll_duplicate_term', $term->term_id, $tr_term_id, $lang );
}
}
}
}
return $tr_term_id;
}
/**
* Get the media translation id
* Create the translation if it does not exist
* Attach the media to the parent post
*
* @since 1.9
*
* @param int $id Media ID.
* @return int Translated media ID.
*/
protected function translate_media( $id ) {
global $wpdb;
if ( ! $tr_id = $this->model->post->get( $id, $this->target_language ) ) {
$tr_id = $this->posts->create_media_translation( $id, $this->target_language );
}
// If we don't have a translation and did not success to create one, return current media
if ( empty( $tr_id ) ) {
return $id;
}
// Attach to the translated post
if ( ! wp_get_post_parent_id( $tr_id ) && 0 < $this->target_post->ID ) {
// Query inspired by wp_media_attach_action()
$wpdb->query( $wpdb->prepare( "UPDATE $wpdb->posts SET post_parent = %d WHERE post_type = 'attachment' AND ID = %d", $this->target_post->ID, $tr_id ) );
clean_attachment_cache( $tr_id );
}
return $tr_id;
}
/**
* Translates the 'gallery' and 'playlist' shortcodes
*
* @since 1.9
*
* @param array $attr Shortcode attributes.
* @param null $null Shortcode content, not used.
* @param string $tag Shortcode tag (either 'gallery' or 'playlist').
* @return string Translated shortcode.
*/
public function ids_list_shortcode( $attr, $null, $tag ) {
$out = array();
foreach ( $attr as $k => $v ) {
if ( 'ids' === $k ) {
$ids = explode( ',', $v );
$tr_ids = array();
foreach ( $ids as $id ) {
$tr_ids[] = $this->translate_media( (int) $id );
}
$v = implode( ',', $tr_ids );
}
$out[] = $k . '="' . $v . '"';
}
return '[' . $tag . ' ' . implode( ' ', $out ) . ']';
}
/**
* Translates the caption shortcode
* Compatible only with the new style introduced in WP 3.4
*
* @since 1.9
*
* @param array $attr Shortcode attrbute.
* @param string $content Shortcode content.
* @param string $tag Shortcode tag (either 'caption' or 'wp-caption').
* @return string Translated shortcode.
*/
public function caption_shortcode( $attr, $content, $tag ) {
// Translate the caption id
$out = array();
foreach ( $attr as $k => $v ) {
if ( 'id' === $k ) {
$idarr = explode( '_', $v );
$id = $idarr[1]; // Remember this
$tr_id = $idarr[1] = $this->translate_media( (int) $id );
$v = implode( '_', $idarr );
}
$out[] = $k . '="' . $v . '"';
}
// Translate the caption content
if ( ! empty( $id ) && ! empty( $tr_id ) ) {
$p = get_post( (int) $id );
$tr_p = get_post( $tr_id );
if ( $p && $tr_p ) {
$content = str_replace( $p->post_excerpt, $tr_p->post_excerpt, $content );
}
}
return '[' . $tag . ' ' . implode( ' ', $out ) . ']' . $content . '[/' . $tag . ']';
}
/**
* Translate images and caption in inner html
*
* Since 2.5
*
* @param string $content HTML string.
* @return string
*/
protected function translate_html( $content ) {
if ( $this->options['media_support'] ) {
$textarr = wp_html_split( $content ); // Since 4.2.3
$img_ids = array();
foreach ( $textarr as $i => $text ) {
// Translate img class and alternative text
if ( 0 === strpos( $text, '<img' ) || strpos( $text, 'role="img"' ) !== false || strpos( $text, 'wp-block-cover__image-background' ) !== false ) {
$img_ids[] = $this->translate_img( $textarr[ $i ] );
}
}
if ( empty( $img_ids ) ) {
return $content;
}
$new_content = implode( $textarr );
$key = 0;
$new_content = preg_replace_callback(
'@(?<before><figcaption.*?>)(.+?)(?<after></figcaption>)@',
function ( $matches ) use ( $img_ids, &$key ) {
$tr_post = get_post( $img_ids[ $key ] );
$key++;
if ( ! empty( $tr_post->post_excerpt ) ) {
return $matches['before'] . $tr_post->post_excerpt . $matches['after'];
} else {
return $matches[0];
}
},
$new_content
);
if ( is_string( $new_content ) ) {
return $new_content;
}
}
return $content;
}
/**
* Translates <img> 'class' and 'alt' attributes.
*
* @since 1.9
* @since 2.5 The html is passed by reference and the return value is the image ID.
*
* @param string $text Reference to <img> html with attributes.
* @return null|int Translated image id if exist.
*/
protected function translate_img( &$text ) {
$attributes = wp_kses_attr_parse( $text ); // since WP 4.2.3
if ( ! is_array( $attributes ) ) {
return null;
}
// Replace class
foreach ( $attributes as $k => $attr ) {
if ( 0 === strpos( $attr, 'class' ) && preg_match( '#wp\-image\-([0-9]+)#', $attr, $matches ) && ! empty( $matches[1] ) ) {
$tr_id = $this->translate_media( (int) $matches[1] );
$attributes[ $k ] = str_replace( 'wp-image-' . $matches[1], 'wp-image-' . $tr_id, $attr );
}
if ( preg_match( '#^data\-id="([0-9]+)#', $attr, $matches ) && ! empty( $matches[1] ) ) {
$tr_id = $this->translate_media( (int) $matches[1] );
$attributes[ $k ] = str_replace( 'data-id="' . $matches[1], 'data-id="' . $tr_id, $attr );
}
if ( 0 === strpos( $attr, 'data-link' ) && preg_match( '#attachment_id=([0-9]+)#', $attr, $matches ) && ! empty( $matches[1] ) ) {
$tr_id = $this->translate_media( (int) $matches[1] );
$attributes[ $k ] = str_replace( 'attachment_id=' . $matches[1], 'attachment_id=' . $tr_id, $attr );
}
}
if ( ! empty( $tr_id ) ) {
// Got a tr_id, attempt to replace the alt text
$alt = get_post_meta( $tr_id, '_wp_attachment_image_alt', true );
if ( is_string( $alt ) && ! empty( $alt ) ) {
foreach ( $attributes as $k => $attr ) {
if ( 0 === strpos( $attr, 'alt' ) ) {
$attributes[ $k ] = 'alt="' . esc_attr( $alt ) . '" ';
}
if ( 0 === strpos( $attr, 'aria-label' ) ) {
$attributes[ $k ] = 'aria-label="' . esc_attr( $alt ) . '" ';
}
}
}
}
$text = implode( $attributes );
return empty( $tr_id ) ? null : $tr_id;
}
/**
* Recursively translate blocks.
*
* @param array[] $blocks An array of arrays representing a block.
* @return array
*/
protected function translate_blocks( $blocks ) {
foreach ( $blocks as $k => $block ) {
switch ( $block['blockName'] ) {
case 'core/block':
if ( ! $this->model->is_translated_post_type( 'wp_block' ) || ! isset( $block['attrs']['ref'] ) ) {
break;
}
$tr_id = $this->model->post->get( $block['attrs']['ref'], $this->target_language );
if ( ! empty( $tr_id ) ) {
$blocks[ $k ]['attrs']['ref'] = $tr_id;
}
break;
case 'core/latest-posts':
if ( isset( $block['attrs']['categories'] ) ) {
$tr_ids = array();
foreach ( $block['attrs']['categories'] as $term ) {
$tr_ids[] = $this->model->term->get( $term['id'], $this->target_language );
}
// Let's remove unfound translation results.
$tr_ids = array_filter( $tr_ids );
// If there is no translation, then the category is unset.
if ( empty( $tr_ids ) ) {
unset( $blocks[ $k ]['attrs']['categories'] );
break;
}
// Query all the translated terms outside the loop to avoid multiple SQL queries with get_term() call.
$terms = get_terms( array( 'include' => $tr_ids, 'hide_empty' => false, 'fields' => 'id=>name' ) );
if ( ! is_array( $terms ) ) {
unset( $blocks[ $k ]['attrs']['categories'] );
break;
}
$tr_data = array();
foreach ( $terms as $id => $term_name ) {
$tr_data[] = array(
'id' => $id,
'value' => $term_name,
);
}
if ( $tr_data ) {
$blocks[ $k ]['attrs']['categories'] = $tr_data;
} else {
unset( $blocks[ $k ]['attrs']['categories'] );
}
} else {
unset( $blocks[ $k ]['attrs']['categories'] );
}
break;
}
if ( $this->options['media_support'] ) {
$blocks[ $k ] = $this->translate_media_block( $blocks[ $k ] );
}
if ( ! empty( $block['innerBlocks'] ) ) {
$blocks[ $k ]['innerBlocks'] = $this->translate_blocks( $block['innerBlocks'] );
}
}
/**
* Filters parsed blocks after core blocks have been translated.
*
* @since 2.5.3
*
* @param array[] $blocks List of blocks.
* @param string $lang Language of target.
* @param string $from_lang Language of the source.
*/
return apply_filters( 'pll_translate_blocks', $blocks, $this->target_language->slug, $this->from_language->slug );
}
/**
* Translates media ids in blocks.
*
* @since 3.3
*
* @param array $block A representative array of a block.
* @return array The translated block.
*/
protected function translate_media_block( $block ) {
switch ( $block['blockName'] ) {
case 'core/audio':
case 'core/video':
if ( array_key_exists( 'id', $block['attrs'] ) ) {
$block['attrs']['id'] = $this->translate_media( $block['attrs']['id'] );
}
break;
case 'core/cover':
case 'core/image':
if ( ! empty( $block['attrs']['id'] ) ) {
$block['attrs']['id'] = $this->translate_media( $block['attrs']['id'] );
if ( ! empty( $block['attrs']['alt'] ) ) {
$alt = get_post_meta( $block['attrs']['id'], '_wp_attachment_image_alt', true );
if ( ! empty( $alt ) ) {
$block['attrs']['alt'] = $alt;
}
}
}
$block = $this->translate_block_content( $block );
break;
case 'core/file':
$source_id = $block['attrs']['id'];
$tr_id = $this->translate_media( $source_id );
$block['attrs']['id'] = $tr_id;
$textarr = wp_html_split( $block['innerHTML'] );
$source_post = get_post( $source_id );
if ( ! $source_post instanceof WP_Post ) {
break;
}
$replace_file_link_text = 0 === strpos( $textarr[3], '<a' ) && $textarr[4] === $source_post->post_title;
if ( $replace_file_link_text ) {
$tr_post = get_post( $tr_id );
if ( $tr_post ) {
$textarr[4] = $tr_post->post_title;
$block['innerContent'][0] = implode( $textarr );
$block['innerHTML'] = implode( $textarr );
}
}
break;
case 'core/gallery':
if ( isset( $block['attrs']['ids'] ) && is_array( $block['attrs']['ids'] ) ) {
// Backward compatibility with WP < 5.9.
foreach ( $block['attrs']['ids'] as $n => $id ) {
$block['attrs']['ids'][ $n ] = $this->translate_media( $id );
}
}
$block = $this->translate_block_content( $block );
break;
case 'core/media-text':
$block['attrs']['mediaId'] = $this->translate_media( $block['attrs']['mediaId'] );
if ( isset( $block['attrs']['mediaLink'] ) ) {
$block['attrs']['mediaLink'] = preg_replace(
'#attachment_id=([0-9]+)#',
'attachment_id=' . $block['attrs']['mediaId'],
$block['attrs']['mediaLink']
);
}
foreach ( $block['innerContent'] as $key => $content ) {
if ( ! empty( $content ) ) {
$block['innerContent'][ $key ] = $this->translate_html( $block['innerContent'][ $key ] );
}
}
break;
case 'core/shortcode':
$block['innerContent'][0] = do_shortcode( $block['innerContent'][0] );
$block['innerHTML'] = do_shortcode( $block['innerHTML'] );
break;
default:
if ( ! empty( $block['innerHTML'] ) ) {
$block = $this->translate_block_content( $block );
}
break;
}
return $block;
}
/**
* Updates the block properties with a translation if it is found.
*
* @since 2.9
*
* @param array $block An array mimicking the structure of {@see https://github.com/WordPress/WordPress/blob/5.5.1/wp-includes/class-wp-block-parser.php WP_Block_Parser_Block}.
* @return array The updated array formatted block.
*/
protected function translate_block_content( $block ) {
$inner_content_nb = count( $block['innerContent'] );
for ( $i = 0; $i < $inner_content_nb; $i++ ) {
if ( ! empty( $block['innerContent'][ $i ] ) ) {
$html = do_shortcode( $block['innerContent'][ $i ] ); // Translate shortcodes.
$html = $this->translate_html( $html ); // Translate inline images.
$block['innerContent'][ $i ] = $html;
}
}
$html = do_shortcode( $block['innerHTML'] ); // Translate shortcodes.
$block['innerHTML'] = $this->translate_html( $html );
return $block;
}
}