X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/7f1521bf193b382565eb753043c161f4cb3fcda7..899389d1e4043331309c0433543419258b230b60:/wp-admin/includes/upgrade.php

diff --git a/wp-admin/includes/upgrade.php b/wp-admin/includes/upgrade.php
index b1c4bc28..495d5b43 100644
--- a/wp-admin/includes/upgrade.php
+++ b/wp-admin/includes/upgrade.php
@@ -524,6 +524,12 @@ 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();
 
@@ -1435,6 +1441,62 @@ 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 < 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 );
+		}
+	}
+}
+
 /**
  * Executes network-level upgrade routines.
  *
@@ -1538,7 +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' );
 
@@ -1547,6 +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))" );
+			}
+		}
+	}
 }
 
 //