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Properly truncate UTF-8 post slugs in wp_unique_post_slug(). fixes #21013. 

git-svn-id: http://core.svn.wordpress.org/trunk@23420 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Sergey Biryukov 2013-02-15 14:35:41 +00:00
parent 12c4b9bae9
commit a395bb01b8
1 changed files with 27 additions and 4 deletions
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31
wp-includes/post.php
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@ -3150,8 +3150,8 @@ function wp_unique_post_slug( $slug, $post_ID, $post_status, $post_type, $post_p
if ( $post_name_check || in_array( $slug, $feeds ) || apply_filters( 'wp_unique_post_slug_is_bad_attachment_slug', false, $slug ) ) {
$suffix = 2;
do {
$alt_post_name = substr ($slug, 0, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix";
$post_name_check = $wpdb->get_var( $wpdb->prepare($check_sql, $alt_post_name, $post_ID ) );
$alt_post_name = _truncate_post_slug( $slug, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix";
$post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $alt_post_name, $post_ID ) );
$suffix++;
} while ( $post_name_check );
$slug = $alt_post_name;
@ -3167,7 +3167,7 @@ function wp_unique_post_slug( $slug, $post_ID, $post_status, $post_type, $post_p
if ( $post_name_check || in_array( $slug, $feeds ) || preg_match( "@^($wp_rewrite->pagination_base)?\d+$@", $slug ) || apply_filters( 'wp_unique_post_slug_is_bad_hierarchical_slug', false, $slug, $post_type, $post_parent ) ) {
$suffix = 2;
do {
$alt_post_name = substr( $slug, 0, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix";
$alt_post_name = _truncate_post_slug( $slug, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix";
$post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $alt_post_name, $post_ID, $post_parent ) );
$suffix++;
} while ( $post_name_check );
@ -3181,7 +3181,7 @@ function wp_unique_post_slug( $slug, $post_ID, $post_status, $post_type, $post_p
if ( $post_name_check || in_array( $slug, $feeds ) || apply_filters( 'wp_unique_post_slug_is_bad_flat_slug', false, $slug, $post_type ) ) {
$suffix = 2;
do {
$alt_post_name = substr( $slug, 0, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix";
$alt_post_name = _truncate_post_slug( $slug, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix";
$post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $alt_post_name, $post_type, $post_ID ) );
$suffix++;
} while ( $post_name_check );
@ -3192,6 +3192,29 @@ function wp_unique_post_slug( $slug, $post_ID, $post_status, $post_type, $post_p
return apply_filters( 'wp_unique_post_slug', $slug, $post_ID, $post_status, $post_type, $post_parent, $original_slug );
}
/**
* Truncates a post slug.
*
* @since 3.6.0
* @access private
* @uses utf8_uri_encode() Makes sure UTF-8 characters are properly cut and encoded.
*
* @param string $slug The slug to truncate.
* @param int $length Max length of the slug.
* @return string The truncated slug.
*/
function _truncate_post_slug( $slug, $length = 200 ) {
if ( strlen( $slug ) > $length ) {
$decoded_slug = urldecode( $slug );
if ( $decoded_slug === $slug )
$slug = substr( $slug, 0, $length );
else
$slug = utf8_uri_encode( $decoded_slug, $length );
}
return rtrim( $slug, '-' );
}
/**
* Adds tags to a post.
*