Files
wp-multisite-waas/inc/duplication/data.php
2024-11-30 18:24:12 -07:00

465 lines
16 KiB
PHP

<?php
use \WP_Ultimo\Dependencies\Psr\Log\LogLevel;
if( !class_exists( 'MUCD_Data' ) ) {
class MUCD_Data {
private static $to_site_id;
/**
* Copy and Update tables from a site to another
* @since 0.2.0
* @param int $from_site_id duplicated site id
* @param int $to_site_id new site id
*/
public static function copy_data( $from_site_id, $to_site_id ) {
self::$to_site_id = $to_site_id;
// Copy
$saved_options = self::db_copy_tables( $from_site_id, $to_site_id );
$blog_meta = self::db_copy_blog_meta( $from_site_id, $to_site_id );
// Update
self::db_update_data( $from_site_id, $to_site_id, $saved_options );
}
public static function db_copy_blog_meta( $from_site_id, $to_site_id ) {
global $wpdb;
// Delete everything
$wpdb->delete(_get_meta_table('blog'), array(
'blog_id' => $to_site_id,
));
$meta = get_site_meta($from_site_id);
foreach ($meta as $meta_key => $list) {
foreach ($list as $value) {
add_site_meta($to_site_id, $meta_key, $value);
} // end foreach;
} // end foreach;
}
/**
* Copy tables from a site to another
* @since 0.2.0
* @param int $from_site_id duplicated site id
* @param int $to_site_id new site id
*/
public static function db_copy_tables( $from_site_id, $to_site_id ) {
global $wpdb ;
// Source Site information
$from_site_prefix = $wpdb->get_blog_prefix( $from_site_id ); // prefix
$from_site_prefix_length = strlen((string) $from_site_prefix); // prefix length
// Destination Site information
$to_site_prefix = $wpdb->get_blog_prefix( $to_site_id ); // prefix
$to_site_prefix_length = strlen((string) $to_site_prefix); // prefix length
// Options that should be preserved in the new blog.
$saved_options = MUCD_Option::get_saved_option();
foreach($saved_options as $option_name => $option_value) {
$saved_options[$option_name] = get_blog_option( $to_site_id, $option_name );
}
// Bugfix : escape '_' , '%' and '/' character for mysql 'like' queries
$from_site_prefix_like = $wpdb->esc_like($from_site_prefix);
// SCHEMA - TO FIX for HyperDB
$schema = DB_NAME;
// Get sources Tables
if($from_site_id == MUCD_PRIMARY_SITE_ID) {
$from_site_table = self::get_primary_tables($from_site_prefix);
}
else {
$sql_query = $wpdb->prepare('SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = \'%s\' AND TABLE_NAME LIKE \'%s\'', $schema, $from_site_prefix_like . '%');
$from_site_table = self::do_sql_query($sql_query, 'col');
}
// var_dump($from_site_table);
// $a = 6;
// $b = 9;
// [$from_site_table[$a], $from_site_table[$b]] = [$from_site_table[$b], $from_site_table[$a]];
// var_dump($from_site_table);
// die;
$tables_to_ignore = array(
'actionscheduler_actions',
'actionscheduler_claims',
'actionscheduler_groups',
'actionscheduler_logs',
);
foreach ($from_site_table as $table) {
$table_base_name = substr( (string) $table, $from_site_prefix_length );
if (in_array($table_base_name, $tables_to_ignore, true)) {
continue;
} // end if;
$table_name = $to_site_prefix . $table_base_name;
// Drop table if exists
self::do_sql_query('DROP TABLE IF EXISTS `' . $table_name . '`');
// Create new table from source table
// self::do_sql_query('CREATE TABLE IF NOT EXISTS `' . $table_name . '` LIKE `' . $schema . '`.`' . $table . '`');
$create_statement = self::do_sql_query('SHOW CREATE TABLE `' . $table . '`', 'row_array');
$create_statement_sql = str_replace($from_site_prefix, $to_site_prefix, (string) $create_statement[1]);
$wpdb->get_results('SET foreign_key_checks = 0');
self::do_sql_query($create_statement_sql);
// echo($create_statement_sql);
// die;
// Populate database with data from source table
self::do_sql_query('INSERT `' . $table_name . '` SELECT * FROM `' . $schema . '`.`' . $table . '`');
$wpdb->get_results('SET foreign_key_checks = 1');
}
// apply key options from new blog.
self::db_restore_data( $to_site_id, $saved_options );
return $saved_options;
}
/**
* Get tables to copy if duplicated site is primary site
* @since 0.2.0
* @param array of string $from_site_tables all tables of duplicated site
* @param string $from_site_prefix db prefix of duplicated site
* @return array of strings : the tables
*/
public static function get_primary_tables($from_site_prefix) {
$default_tables = MUCD_Option::get_primary_tables_to_copy();
foreach($default_tables as $k => $default_table) {
$default_tables[$k] = $from_site_prefix . $default_table;
}
return $default_tables;
}
/**
* Updated tables from a site to another
* @since 0.2.0
* @param int $from_site_id duplicated site id
* @param int $to_site_id new site id
*/
public static function db_update_data( $from_site_id, $to_site_id, $saved_options ) {
global $wpdb ;
$to_blog_prefix = $wpdb->get_blog_prefix( $to_site_id );
// Looking for uploads dirs
switch_to_blog($from_site_id);
$dir = wp_upload_dir();
$from_upload_url = str_replace(network_site_url(), get_bloginfo('url').'/',$dir['baseurl']);
$from_blog_url = get_blog_option( $from_site_id, 'siteurl' );
restore_current_blog();
switch_to_blog($to_site_id);
$dir = wp_upload_dir();
$to_upload_url = str_replace(network_site_url(), get_bloginfo('url').'/', $dir['baseurl']);
$to_blog_url = get_blog_option( $to_site_id, 'siteurl' );
restore_current_blog();
$tables = array();
// Bugfix : escape '_' , '%' and '/' character for mysql 'like' queries
$to_blog_prefix_like = $wpdb->esc_like($to_blog_prefix);
$results = self::do_sql_query('SHOW TABLES LIKE \'' . $to_blog_prefix_like . '%\'', 'col', FALSE);
foreach( $results as $k => $v ) {
$tables[str_replace($to_blog_prefix, '', (string) $v)] = array();
}
foreach( $tables as $table => $col) {
$results = self::do_sql_query('SHOW COLUMNS FROM `' . $to_blog_prefix . $table . '`', 'col', FALSE);
$columns = array();
foreach( $results as $k => $v ) {
$columns[] = $v;
}
$tables[$table] = $columns;
}
$default_tables = MUCD_Option::get_fields_to_update();
foreach( $default_tables as $table => $field) {
$tables[$table] = $field;
}
$from_site_prefix = $wpdb->get_blog_prefix( $from_site_id );
$to_site_prefix = $wpdb->get_blog_prefix( $to_site_id );
$string_to_replace = array (
wu_replace_scheme($from_upload_url) => wu_replace_scheme($to_upload_url),
wu_replace_scheme($from_blog_url) => wu_replace_scheme($to_blog_url),
$from_site_prefix => $to_site_prefix
);
$string_to_replace = apply_filters('mucd_string_to_replace', $string_to_replace, $from_site_id, $to_site_id);
foreach( $tables as $table => $field) {
foreach( $string_to_replace as $from_string => $to_string) {
self::update($to_blog_prefix . $table, $field, $from_string, $to_string);
}
}
self::db_restore_data( $to_site_id, $saved_options );
}
/**
* Restore options that should be preserved in the new blog
* @since 0.2.0
* @param int $from_site_id duplicated site id
* @param int $to_site_id new site id
*/
public static function db_restore_data( $to_site_id, $saved_options ) {
switch_to_blog( $to_site_id );
foreach ( $saved_options as $option_name => $option_value ) {
try {
update_option( $option_name, $option_value );
} catch (\Throwable $exception) {
// ...nothing
}
}
restore_current_blog();
}
/**
* Updates a table
* @since 0.2.0
* @param string $table to update
* @param array of string $fields to update
* @param string $from_string original string to replace
* @param string $to_string new string
*/
public static function update($table, $fields, $from_string, $to_string) {
if (is_array($fields) || !empty($fields)) {
global $wpdb;
foreach($fields as $field) {
// Bugfix : escape '_' , '%' and '/' character for mysql 'like' queries
$from_string_like = $wpdb->esc_like($from_string);
$results = $wpdb->query("SET SQL_MODE='ALLOW_INVALID_DATES';");
$sql_query = $wpdb->prepare('
SELECT `' .$field. '` FROM `'.$table.'` WHERE `' .$field. '` LIKE "%s" ',
'%' . $from_string_like . '%'
);
$results = self::do_sql_query($sql_query, 'results', false);
if ($results) {
$update = 'UPDATE `'.$table.'` SET `'.$field.'` = "%s" WHERE `'.$field.'` = "%s"';
foreach($results as $result => $row) {
$old_value = $row[$field];
$new_value = self::try_replace( $row, $field, $from_string, $to_string );
$sql_query = $wpdb->prepare($update, $new_value, $old_value);
$results = self::do_sql_query($sql_query);
}
}
}
}
}
/**
* Replace $from_string with $to_string in $val
* Warning : if $to_string already in $val, no replacement is made
* @since 0.2.0
* @param string $val
* @param string $from_string
* @param string $to_string
* @return string the new string
*/
public static function replace($val, $from_string, $to_string) {
$new = $val;
if(is_string($val)) {
$pos = strpos($val, $to_string);
if($pos === false) {
$new = str_replace($from_string, $to_string, $val);
}
}
return $new;
}
/**
* Replace recursively $from_string with $to_string in $val
* @since 0.2.0
* @param mixte (string|array) $val
* @param string $from_string
* @param string $to_string
* @return string the new string
*/
public static function replace_recursive($val, $from_string, $to_string) {
$unset = array();
if(is_array($val)) {
foreach($val as $k => $v) {
$val[$k] = self::try_replace( $val, $k, $from_string, $to_string );
}
}
else
$val = self::replace($val, $from_string, $to_string);
foreach($unset as $k)
unset($val[$k]);
return $val;
}
/**
* Try to replace $from_string with $to_string in a row
* @since 0.2.0
* @param array $row the row
* @param array $field the field
* @param string $from_string
* @param string $to_string
* @return the new data
*/
public static function try_replace($row, $field, $from_string, $to_string) {
if(is_serialized($row[$field])) {
$double_serialize = FALSE;
$row[$field] = @unserialize($row[$field]);
// FOR SERIALISED OPTIONS, like in wp_carousel plugin
if(is_serialized($row[$field])) {
$row[$field] = @unserialize($row[$field]);
$double_serialize = TRUE;
}
if(is_array($row[$field])) {
$row[$field] = self::replace_recursive($row[$field], $from_string, $to_string);
}
else if(is_object($row[$field]) || $row[$field] instanceof __PHP_Incomplete_Class) {
$array_object = (array) $row[$field];
$array_object = self::replace_recursive($array_object, $from_string, $to_string);
foreach($array_object as $key => $value) {
try {
$row[$field]->$key = $value;
} catch (\Throwable $exception) {
// ...nothing
}
}
}
else {
$row[$field] = self::replace($row[$field], $from_string, $to_string);
}
$row[$field] = serialize($row[$field]);
// Pour des options comme wp_carousel...
if($double_serialize) {
$row[$field] = serialize($row[$field]);
}
}
else {
$row[$field] = self::replace($row[$field], $from_string, $to_string);
}
return $row[$field];
}
/**
* Runs a WPDB query
* @since 0.2.0
* @param string $sql_query the query
* @param string $type type of result
* @param boolean $log log the query, or not
* @return $results of the query
*/
public static function do_sql_query($sql_query, $type = '', $log = TRUE) {
global $wpdb;
$wpdb->suppress_errors();
switch ($type) {
case 'col':
$results = $wpdb->get_col($sql_query);
break;
case 'row':
$results = $wpdb->get_row($sql_query);
break;
case 'row_array':
$results = $wpdb->get_row($sql_query, ARRAY_N);
break;
case 'var':
$results = $wpdb->get_var($sql_query);
break;
case 'results':
$results = $wpdb->get_results($sql_query, ARRAY_A);
break;
default:
$results = $wpdb->query($sql_query);
break;
}
if($log) {
MUCD_Duplicate::write_log('SQL :' .$sql_query);
MUCD_Duplicate::write_log('Result :' . var_export($results, true));
}
if ($wpdb->last_error != "") {
self::sql_error($sql_query, $wpdb->last_error);
}
$wpdb->suppress_errors(false);
return $results;
}
/**
* Stop process on SQL Error, print and log error, removes the new blog
* @since 0.2.0
* @param string $sql_query the query
* @param string $sql_error the error
*/
public static function sql_error($sql_query, $sql_error) {
wu_log_add('site-duplication-errors', sprintf('Got error "%s" while running: %s', $sql_error, $sql_query), LogLevel::ERROR);
}
}
}