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Editor: Ensure block comments are of a valid form.

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Ensures that the block delimiter comments are of a valid form: opening with `<!--` and closing with `-->`.

Props xknown, isabel_brison, peterwilsoncc.


Built from https://develop.svn.wordpress.org/trunk@55762


git-svn-id: http://core.svn.wordpress.org/trunk@55274 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
audrasjb 2023-05-16 14:23:19 +00:00
parent 6a077b35f1
commit f477c00fdc
2 changed files with 18 additions and 1 deletions
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17
wp-includes/blocks.php
View File

@ -800,6 +800,10 @@ function serialize_blocks( $blocks ) {
function filter_block_content( $text, $allowed_html = 'post', $allowed_protocols = array() ) {
$result = '';
if ( false !== strpos( $text, '<!--' ) && false !== strpos( $text, '--->' ) ) {
$text = preg_replace_callback( '%<!--(.*?)--->%', '_filter_block_content_callback', $text );
}
$blocks = parse_blocks( $text );
foreach ( $blocks as $block ) {
$block = filter_block_kses( $block, $allowed_html, $allowed_protocols );
@ -809,6 +813,19 @@ function filter_block_content( $text, $allowed_html = 'post', $allowed_protocols
return $result;
}
/**
* Callback used for regular expression replacement in filter_block_content().
*
* @private
* @since 6.2.1
*
* @param array $matches Array of preg_replace_callback matches.
* @return string Replacement string.
*/
function _filter_block_content_callback( $matches ) {
return '<!--' . rtrim( $matches[1], '-' ) . '-->';
}
/**
* Filters and sanitizes a parsed block to remove non-allowable HTML
* from block attribute values.

2
wp-includes/version.php
View File

@ -16,7 +16,7 @@
*
* @global string $wp_version
*/
$wp_version = '6.3-alpha-55761';
$wp_version = '6.3-alpha-55762';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.