WordPress 4.2.3

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

diff --git a/wp-admin/includes/upgrade.php b/wp-admin/includes/upgrade.php
index b1c4bc28fae9ae101640e9d9fb7b7f84f6b1385b..cb2188b4ab25b4e74a5bbba58ce2e15f10239158 100644 (file)
--- a/wp-admin/includes/upgrade.php
+++ b/wp-admin/includes/upgrade.php
@@ -524,8 +524,11 @@ function upgrade_all() {
        if ( $wp_current_db_version < 29630 )
                upgrade_400();
 
-       if ( $wp_current_db_version < 31351 )
-               upgrade_420();
+       if ( $wp_current_db_version < 31534 )
+               upgrade_422();
+
+       if ( $wp_current_db_version < 31536 )
+               upgrade_423();
 
        maybe_disable_link_manager();
 
@@ -1420,13 +1423,81 @@ function upgrade_400() {
  * @since 4.2.0
  */
 function upgrade_420() {
+}
+
+/**
+ * Execute changes made in WordPress 4.2.1.
+ *
+ * @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 < 31351 && $wpdb->charset === 'utf8mb4' ) {
+       if ( $wp_current_db_version < 31534 ) {
+               $content_length = $wpdb->get_col_length( $wpdb->comments, 'comment_content' );
+
+               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 LENGTH( `comment_content` ) >= {$allowed_length}
+                               AND ( `comment_content` LIKE '%<%' OR `comment_content` LIKE '%>%' )"
+               );
+
+               foreach ( $comments as $comment ) {
+                       wp_delete_comment( $comment->comment_ID, true );
+               }
+       }
+}
+
+/**
+ * Execute changes made in WordPress 4.2.0.
+ *
+ * @since 4.2.3
+ */
+function upgrade_423() {
+       global $wp_current_db_version, $wpdb;
+
+       if ( $wp_current_db_version < 31536 && $wpdb->charset === 'utf8mb4' ) {
                if ( is_multisite() ) {
                        $tables = $wpdb->tables( 'blog' );
                } else {
                        $tables = $wpdb->tables( 'all' );
+                       if ( defined( 'DO_NOT_UPGRADE_GLOBAL_TABLES' ) ) {
+                               $global_tables = $wpdb->tables( 'global' );
+                               $tables = array_diff_assoc( $tables, $global_tables );
+                       }
                }
 
                foreach ( $tables as $table ) {
@@ -1534,11 +1605,11 @@ function upgrade_network() {
 
        // 4.2
        if ( $wp_current_db_version < 31351 && $wpdb->charset === 'utf8mb4' ) {
-               if ( ! ( defined( 'DO_NOT_UPGRADE_GLOBAL_TABLES' ) && DO_NOT_UPGRADE_GLOBAL_TABLES ) ) {
+               if ( ! defined( 'DO_NOT_UPGRADE_GLOBAL_TABLES' ) ) {
                        $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' );
 
@@ -1547,6 +1618,35 @@ function upgrade_network() {
                        }
                }
        }
+
+       // 4.2.2
+       if ( $wp_current_db_version < 31535 && 'utf8mb4' === $wpdb->charset ) {
+               if ( ! defined( '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))" );
+                       }
+               }
+       }
+
+       // 4.2.3
+       if ( $wp_current_db_version < 31536 && $wpdb->charset === 'utf8mb4' ) {
+               if ( ! defined( 'DO_NOT_UPGRADE_GLOBAL_TABLES' ) ) {
+                       $tables = $wpdb->tables( 'global' );
+
+                       foreach ( $tables as $table ) {
+                               maybe_convert_table_to_utf8mb4( $table );
+                       }
+               }
+       }
 }
 
 //
@@ -1679,6 +1779,17 @@ function maybe_convert_table_to_utf8mb4( $table ) {
                }
        }
 
+       $table_details = $wpdb->get_row( "SHOW TABLE STATUS LIKE '$table'" );
+       if ( ! $table_details ) {
+               return false;
+       }
+
+       list( $table_charset ) = explode( '_', $table_details->Collation );
+       $table_charset = strtolower( $table_charset );
+       if ( 'utf8mb4' === $table_charset ) {
+               return true;
+       }
+
        return $wpdb->query( "ALTER TABLE $table CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci" );
 }
 
@@ -2366,14 +2477,9 @@ function pre_schema_upgrade() {
                }
        }
 
-       if ( $wp_current_db_version < 30133 ) {
-               // dbDelta() can recreate but can't drop the index.
-               $wpdb->query( "ALTER TABLE $wpdb->terms DROP INDEX slug" );
-       }
-
        // Upgrade versions prior to 4.2.
        if ( $wp_current_db_version < 31351 ) {
-               if ( ! is_multisite() ) {
+               if ( ! is_multisite() && ! defined( 'DO_NOT_UPGRADE_GLOBAL_TABLES' ) ) {
                        $wpdb->query( "ALTER TABLE $wpdb->usermeta DROP INDEX meta_key, ADD INDEX meta_key(meta_key(191))" );
                }
                $wpdb->query( "ALTER TABLE $wpdb->terms DROP INDEX slug, ADD INDEX slug(slug(191))" );