X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/fcaa67f093b5c83deea7a361a8cf8c6ac4e832d3..refs/tags/wordpress-4.2.3:/wp-admin/includes/upgrade.php

diff --git a/wp-admin/includes/upgrade.php b/wp-admin/includes/upgrade.php
index 9803f88b..cb2188b4 100644
--- a/wp-admin/includes/upgrade.php
+++ b/wp-admin/includes/upgrade.php
@@ -524,11 +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 < 31533 )
-		upgrade_421();
+	if ( $wp_current_db_version < 31536 )
+		upgrade_423();
 
 	maybe_disable_link_manager();
 
@@ -1423,19 +1423,6 @@ function upgrade_400() {
  * @since 4.2.0
  */
 function upgrade_420() {
-	global $wp_current_db_version, $wpdb;
-
-	if ( $wp_current_db_version < 31351 && $wpdb->charset === 'utf8mb4' ) {
-		if ( is_multisite() ) {
-			$tables = $wpdb->tables( 'blog' );
-		} else {
-			$tables = $wpdb->tables( 'all' );
-		}
-
-		foreach ( $tables as $table ) {
-			maybe_convert_table_to_utf8mb4( $table );
-		}
-	}
 }
 
 /**
@@ -1444,19 +1431,48 @@ 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 ) {
@@ -1465,6 +1481,31 @@ function upgrade_421() {
 	}
 }
 
+/**
+ * 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 ) {
+			maybe_convert_table_to_utf8mb4( $table );
+		}
+	}
+}
+
 /**
  * Executes network-level upgrade routines.
  *
@@ -1564,11 +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' );
 
@@ -1577,6 +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 );
+			}
+		}
+	}
 }
 
 //
@@ -1709,6 +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" );
 }
 
@@ -2396,14 +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))" );