3.9:
- WPDB: Sanity check that any strings being stored in the DB are not too long to store correctly. - When upgrading, remove any suspicious comments. Built from https://develop.svn.wordpress.org/branches/3.9@32316 git-svn-id: http://core.svn.wordpress.org/branches/3.9@32287 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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Michael Adams
parent
ad0a3701d4
commit
10be03b2d7
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@ -9,7 +9,7 @@
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<body>
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<h1 id="logo">
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<a href="https://wordpress.org/"><img alt="WordPress" src="wp-admin/images/wordpress-logo.png" /></a>
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<br /> Version 3.9.5
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<br /> Version 3.9.6
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</h1>
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<p style="text-align: center">Semantic Personal Publishing Platform</p>
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@ -39,7 +39,11 @@ include( ABSPATH . 'wp-admin/admin-header.php' );
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</h2>
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<div class="changelog point-releases">
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<h3><?php echo _n( 'Maintenance and Security Release', 'Maintenance and Security Releases', 5 ); ?></h3>
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<h3><?php echo _n( 'Maintenance and Security Release', 'Maintenance and Security Releases', 6 ); ?></h3>
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<p><?php printf( _n( '<strong>Version %1$s</strong> addressed a security issue.',
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'<strong>Version %1$s</strong> addressed some security issues.', 1 ), '3.9.6' ); ?>
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<?php printf( __( 'For more information, see <a href="%s">the release notes</a>.' ), 'http://codex.wordpress.org/Version_3.9.6' ); ?>
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</p>
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<p><?php printf( _n( '<strong>Version %1$s</strong> addressed %2$s bug.',
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'<strong>Version %1$s</strong> addressed %2$s bugs.', 1 ), '3.9.5', number_format_i18n( 1 ) ); ?>
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<?php printf( __( 'For more information, see <a href="%s">the release notes</a>.' ), 'https://codex.wordpress.org/Version_3.9.5' ); ?>
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@ -430,6 +430,9 @@ function upgrade_all() {
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if ( $wp_current_db_version < 26691 )
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upgrade_380();
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if ( $wp_current_db_version < 27917 )
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upgrade_396();
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maybe_disable_link_manager();
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maybe_disable_automattic_widgets();
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@ -1270,6 +1273,34 @@ function upgrade_380() {
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deactivate_plugins( array( 'mp6/mp6.php' ), true );
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}
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}
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/**
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* Execute changes made in WordPress 3.9.6.
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*
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* @since 3.9.6
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*/
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function upgrade_396() {
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global $wp_current_db_version, $wpdb;
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if ( $wp_current_db_version < 27917 ) {
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$content_length = $wpdb->get_col_length( $wpdb->comments, 'comment_content' );
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if ( ! $content_length ) {
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$content_length = 65535;
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}
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$comments = $wpdb->get_results(
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"SELECT comment_ID FROM $wpdb->comments
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WHERE comment_date_gmt > '2015-04-26'
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AND CHAR_LENGTH( comment_content ) >= $content_length
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AND ( comment_content LIKE '%<%' OR comment_content LIKE '%>%' )"
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);
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foreach ( $comments as $comment ) {
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wp_delete_comment( $comment->comment_ID, true );
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}
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}
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}
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/**
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* Execute network level changes
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*
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@ -11,7 +11,7 @@ $wp_version = '3.9.6';
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*
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* @global int $wp_db_version
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*/
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$wp_db_version = 27916;
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$wp_db_version = 27917;
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/**
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* Holds the TinyMCE version
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@ -1893,11 +1893,20 @@ class wpdb {
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*/
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protected function process_fields( $table, $data, $format ) {
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$data = $this->process_field_formats( $data, $format );
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if ( false === $data ) {
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return false;
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}
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$data = $this->process_field_charsets( $data, $table );
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if ( false === $data ) {
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return false;
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}
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$data = $this->process_field_lengths( $data, $table );
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if ( false === $data ) {
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return false;
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}
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$converted_data = $this->strip_invalid_text( $data );
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if ( $data !== $converted_data ) {
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@ -1978,6 +1987,40 @@ class wpdb {
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return $data;
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}
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/**
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* For string fields, record the maximum string length that field can safely save.
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*
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* @since 4.2.1
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* @access protected
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*
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* @param array $data As it comes from the wpdb::process_field_charsets() method.
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* @param string $table Table name.
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* @return array|False The same array as $data with additional 'length' keys, or false if
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* any of the values were too long for their corresponding field.
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*/
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protected function process_field_lengths( $data, $table ) {
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foreach ( $data as $field => $value ) {
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if ( '%d' === $value['format'] || '%f' === $value['format'] ) {
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// We can skip this field if we know it isn't a string.
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// This checks %d/%f versus ! %s because it's sprintf() could take more.
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$value['length'] = false;
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} else {
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$value['length'] = $this->get_col_length( $table, $field );
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if ( is_wp_error( $value['length'] ) ) {
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return false;
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}
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}
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if ( false !== $value['length'] && strlen( $value['value'] ) > $value['length'] ) {
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return false;
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}
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$data[ $field ] = $value;
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}
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return $data;
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}
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/**
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* Retrieve one variable from the database.
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*
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@ -2298,6 +2341,77 @@ class wpdb {
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return $charset;
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}
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/**
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* Retrieve the maximum string length allowed in a given column.
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*
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* @since 4.2.1
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* @access public
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*
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* @param string $table Table name.
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* @param string $column Column name.
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* @return mixed Max column length as an int. False if the column has no
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* length. WP_Error object if there was an error.
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*/
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public function get_col_length( $table, $column ) {
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$tablekey = strtolower( $table );
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$columnkey = strtolower( $column );
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// Skip this entirely if this isn't a MySQL database.
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if ( false === $this->is_mysql ) {
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return false;
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}
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if ( empty( $this->col_meta[ $tablekey ] ) ) {
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// This primes column information for us.
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$table_charset = $this->get_table_charset( $table );
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if ( is_wp_error( $table_charset ) ) {
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return $table_charset;
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}
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}
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if ( empty( $this->col_meta[ $tablekey ][ $columnkey ] ) ) {
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return false;
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}
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$typeinfo = explode( '(', $this->col_meta[ $tablekey ][ $columnkey ]->Type );
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$type = strtolower( $typeinfo[0] );
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if ( ! empty( $typeinfo[1] ) ) {
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$length = trim( $typeinfo[1], ')' );
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} else {
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$length = false;
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}
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switch( $type ) {
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case 'binary':
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case 'char':
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case 'varbinary':
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case 'varchar':
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return $length;
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break;
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case 'tinyblob':
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case 'tinytext':
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return 255; // 2^8 - 1
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break;
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case 'blob':
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case 'text':
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return 65535; // 2^16 - 1
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break;
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case 'mediumblob':
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case 'mediumtext':
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return 16777215; // 2^24 - 1
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break;
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case 'longblob':
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case 'longtext':
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return 4294967295; // 2^32 - 1
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break;
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default:
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return false;
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}
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return false;
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}
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/**
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* Check if a string is ASCII.
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*
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