Grouped backports to the 5.7 branch.
- Query: Improve sanitization within `WP_Tax_Query`. - Query: Improve sanitization within `WP_Meta_Query`. - Upgrade/Install: Avoid using `unserialize()` unnecessarily. - Formatting: Correctly encode ASCII characters in post slugs. Merges [52454-52457] to the 5.7 branch. Props vortfu, dd32, ehtis, zieladam, whyisjake, xknown, peterwilsoncc, desrosj, iandunn. Built from https://develop.svn.wordpress.org/branches/5.7@52466 git-svn-id: http://core.svn.wordpress.org/branches/5.7@52058 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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@ -1658,8 +1658,8 @@ function upgrade_280() {
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$start = 0;
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while ( $rows = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options ORDER BY option_id LIMIT $start, 20" ) ) {
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foreach ( $rows as $row ) {
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$value = $row->option_value;
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if ( ! @unserialize( $value ) ) {
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$value = maybe_unserialize( $row->option_value );
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if ( $value === $row->option_value ) {
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$value = stripslashes( $value );
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}
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if ( $value !== $row->option_value ) {
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@ -812,7 +812,7 @@ class WP_Meta_Query {
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$clause_compare = strtoupper( $clause['compare'] );
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$sibling_compare = strtoupper( $sibling['compare'] );
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if ( in_array( $clause_compare, $compatible_compares, true ) && in_array( $sibling_compare, $compatible_compares, true ) ) {
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$alias = $sibling['alias'];
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$alias = preg_replace( '/\W/', '_', $sibling['alias'] );
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break;
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}
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}
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@ -527,7 +527,7 @@ class WP_Tax_Query {
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// The sibling must both have compatible operator to share its alias.
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if ( in_array( strtoupper( $sibling['operator'] ), $compatible_operators, true ) ) {
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$alias = $sibling['alias'];
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$alias = preg_replace( '/\W/', '_', $sibling['alias'] );
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break;
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}
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}
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@ -556,7 +556,11 @@ class WP_Tax_Query {
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return;
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}
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$query['terms'] = array_unique( (array) $query['terms'] );
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if ( 'slug' === $query['field'] || 'name' === $query['field'] ) {
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$query['terms'] = array_unique( (array) $query['terms'] );
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} else {
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$query['terms'] = wp_parse_id_list( $query['terms'] );
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}
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if ( is_taxonomy_hierarchical( $query['taxonomy'] ) && $query['include_children'] ) {
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$this->transform_query( $query, 'term_id' );
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@ -1138,12 +1138,14 @@ function wp_check_invalid_utf8( $string, $strip = false ) {
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* Encode the Unicode values to be used in the URI.
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*
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* @since 1.5.0
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* @since 5.8.3 Added the `encode_ascii_characters` parameter.
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*
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* @param string $utf8_string
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* @param int $length Max length of the string
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* @param string $utf8_string String to encode.
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* @param int $length Max length of the string
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* @param bool $encode_ascii_characters Whether to encode ascii characters such as < " '
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* @return string String with Unicode encoded for URI.
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*/
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function utf8_uri_encode( $utf8_string, $length = 0 ) {
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function utf8_uri_encode( $utf8_string, $length = 0, $encode_ascii_characters = false ) {
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$unicode = '';
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$values = array();
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$num_octets = 1;
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@ -1158,11 +1160,14 @@ function utf8_uri_encode( $utf8_string, $length = 0 ) {
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$value = ord( $utf8_string[ $i ] );
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if ( $value < 128 ) {
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if ( $length && ( $unicode_length >= $length ) ) {
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$char = chr( $value );
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$encoded_char = $encode_ascii_characters ? rawurlencode( $char ) : $char;
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$encoded_char_length = strlen( $encoded_char );
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if ( $length && ( $unicode_length + $encoded_char_length ) > $length ) {
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break;
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}
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$unicode .= chr( $value );
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$unicode_length++;
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$unicode .= $encoded_char;
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$unicode_length += $encoded_char_length;
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} else {
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if ( count( $values ) == 0 ) {
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if ( $value < 224 ) {
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@ -4840,7 +4840,7 @@ function _truncate_post_slug( $slug, $length = 200 ) {
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if ( $decoded_slug === $slug ) {
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$slug = substr( $slug, 0, $length );
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} else {
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$slug = utf8_uri_encode( $decoded_slug, $length );
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$slug = utf8_uri_encode( $decoded_slug, $length, true );
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}
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}
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