WordPress 4.2.2

[autoinstalls/wordpress.git] / wp-admin / includes / upgrade.php

diff --git a/wp-admin/includes/upgrade.php b/wp-admin/includes/upgrade.php
index 9803f88b42dc26540cb8d439191dc283d08c73a5..495d5b437dc5a7ef28f5ab209cc99b3c6e3d3ec3 100644 (file)
--- a/wp-admin/includes/upgrade.php
+++ b/wp-admin/includes/upgrade.php
@@ -524,12 +524,15 @@ function upgrade_all() {
        if ( $wp_current_db_version < 29630 )
                upgrade_400();
 
+       // Don't harsh my mellow. upgrade_422() must be called before
+       // upgrade_420() to catch bad comments prior to any auto-expansion of
+       // MySQL column widths.
+       if ( $wp_current_db_version < 31534 )
+               upgrade_422();
+
        if ( $wp_current_db_version < 31351 )
                upgrade_420();
 
-       if ( $wp_current_db_version < 31533 )
-               upgrade_421();
-
        maybe_disable_link_manager();
 
        maybe_disable_automattic_widgets();
@@ -1444,19 +1447,48 @@ function upgrade_420() {
  * @since 4.2.1
  */
 function upgrade_421() {
+}
+
+/**
+ * Execute changes made in WordPress 4.2.2.
+ *
+ * @since 4.2.2
+ */
+function upgrade_422() {
        global $wp_current_db_version, $wpdb;
 
-       if ( $wp_current_db_version < 31533 ) {
+       if ( $wp_current_db_version < 31534 ) {
                $content_length = $wpdb->get_col_length( $wpdb->comments, 'comment_content' );
-               if ( ! $content_length ) {
-                       $content_length = 65535;
+
+               if ( is_wp_error( $content_length ) ) {
+                       return;
                }
 
+               if ( false === $content_length ) {
+                       $content_length = array(
+                               'type'   => 'byte',
+                               'length' => 65535,
+                       );
+               } elseif ( ! is_array( $content_length ) ) {
+                       $length = (int) $content_length > 0 ? (int) $content_length : 65535;
+                       $content_length = array(
+                               'type'   => 'byte',
+                               'length' => $length
+                       );
+               }
+
+               if ( 'byte' !== $content_length['type'] || 0 === $content_length['length'] ) {
+                       // Sites with malformed DB schemas are on their own.
+                       return;
+               }
+
+               $allowed_length = intval( $content_length['length'] ) - 10;
+
                $comments = $wpdb->get_results(
-                       "SELECT comment_ID FROM $wpdb->comments
-                       WHERE comment_date_gmt > '2015-04-26'
-                       AND CHAR_LENGTH( comment_content ) >= $content_length
-                       AND ( comment_content LIKE '%<%' OR comment_content LIKE '%>%' )"
+                       "SELECT `comment_ID` FROM `{$wpdb->comments}`
+                               WHERE `comment_date_gmt` > '2015-04-26'
+                               AND LENGTH( `comment_content` ) >= {$allowed_length}
+                               AND ( `comment_content` LIKE '%<%' OR `comment_content` LIKE '%>%' )"
                );
 
                foreach ( $comments as $comment ) {
@@ -1568,7 +1600,7 @@ function upgrade_network() {
                        $wpdb->query( "ALTER TABLE $wpdb->usermeta DROP INDEX meta_key, ADD INDEX meta_key(meta_key(191))" );
                        $wpdb->query( "ALTER TABLE $wpdb->site DROP INDEX domain, ADD INDEX domain(domain(140),path(51))" );
                        $wpdb->query( "ALTER TABLE $wpdb->sitemeta DROP INDEX meta_key, ADD INDEX meta_key(meta_key(191))" );
-                       $wpdb->query( "ALTER TABLE $wpdb->signups DROP INDEX domain, ADD INDEX domain(domain(140),path(51))" );
+                       $wpdb->query( "ALTER TABLE $wpdb->signups DROP INDEX domain_path, ADD INDEX domain_path(domain(140),path(51))" );
 
                        $tables = $wpdb->tables( 'global' );
 
@@ -1577,6 +1609,24 @@ function upgrade_network() {
                        }
                }
        }
+
+       // 4.2.2
+       if ( $wp_current_db_version < 31535 && 'utf8mb4' === $wpdb->charset ) {
+               if ( ! ( defined( 'DO_NOT_UPGRADE_GLOBAL_TABLES' ) && DO_NOT_UPGRADE_GLOBAL_TABLES ) ) {
+                       $upgrade = false;
+                       $indexes = $wpdb->get_results( "SHOW INDEXES FROM $wpdb->signups" );
+                       foreach( $indexes as $index ) {
+                               if ( 'domain_path' == $index->Key_name && 'domain' == $index->Column_name && 140 != $index->Sub_part ) {
+                                       $upgrade = true;
+                                       break;
+                               }
+                       }
+
+                       if ( $upgrade ) {
+                               $wpdb->query( "ALTER TABLE $wpdb->signups DROP INDEX domain_path, ADD INDEX domain_path(domain(140),path(51))" );
+                       }
+               }
+       }
 }
 
 //