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<?php |
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|
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if (!class_exists('DB_Resetter')) : |
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|
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class DB_Resetter |
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{ |
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|
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private $backup; |
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private $blog_data; |
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private $theme_plugin_data; |
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private $user_data; |
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private $preserved; |
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private $selected; |
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private $reactivate; |
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private $user; |
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private $wp_tables; |
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private $reset_users = false; |
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|
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public function __construct() |
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{ |
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$this->set_wp_tables(); |
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$this->set_user(); |
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} |
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|
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public function reset(array $tables) |
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{ |
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if (wp_verify_nonce(@$_REQUEST['submit_reset_form'], 'reset_nounce') && current_user_can('administrator')) { |
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// Check if current user is Admin and check the nonce |
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|
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if (in_array('users', $tables)) { |
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$this->reset_users = true; |
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} |
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|
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$this->validate_selected($tables); |
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$this->set_backup(); |
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$this->reinstall(); |
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$this->restore_backup(); |
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} else { |
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throw new Exception(__('Please reload the page and try again. Double check your security code.', 'wordpress-database-reset')); |
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} |
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} |
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|
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private function validate_selected(array $tables) |
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{ |
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if (!empty($tables) && is_array($tables)) { |
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$this->selected = array_flip($tables); |
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return; |
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} |
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|
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throw new Exception(__('You did not select any database tables', 'wordpress-database-reset')); |
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} |
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|
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private function set_backup() |
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{ |
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$this->set_tables_to_preserve($this->selected); |
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$this->back_up_tables($this->preserved); |
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$this->set_user_session_tokens(); |
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$this->set_blog_data(); |
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|
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if ($this->should_restore_theme_plugin_data()) { |
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$this->set_theme_plugin_data(); |
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} |
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} |
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|
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private function set_tables_to_preserve(array $tables) |
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{ |
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$this->preserved = array_diff_key($this->wp_tables, $tables); |
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} |
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|
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private function back_up_tables(array $tables) |
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{ |
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global $wpdb; |
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$this->backup = array(); |
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|
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foreach ($tables as $table) { |
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$this->backup[$table] = $wpdb->get_results("SELECT * FROM {$table}"); |
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} |
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} |
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|
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private function set_user_session_tokens() |
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{ |
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if (get_user_meta($this->user->ID, 'session_tokens')) { |
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$this->user_data = array( |
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'session_tokens' => get_user_meta($this->user->ID, 'session_tokens', true) |
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); |
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} |
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} |
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|
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private function set_blog_data() |
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{ |
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$this->blog_data = array( |
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'name' => get_option('blogname'), |
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'public' => get_option('blog_public'), |
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'site_url' => get_option('siteurl') |
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); |
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} |
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|
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private function should_restore_theme_plugin_data() |
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{ |
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return ('true' === $this->reactivate); |
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} |
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|
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private function set_theme_plugin_data() |
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{ |
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$this->theme_plugin_data = array( |
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'active-plugins' => get_option('active_plugins'), |
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'current-theme' => get_option('current_theme'), |
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'stylesheet' => get_option('stylesheet'), |
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'template' => get_option('template') |
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); |
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} |
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|
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private function reinstall() |
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{ |
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$this->drop_wp_tables(); |
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$this->install_wp(); |
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$this->update_user_settings(); |
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} |
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|
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private function drop_wp_tables() |
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{ |
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global $wpdb; |
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|
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foreach ($this->wp_tables as $wp_table) { |
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$wpdb->query("DROP TABLE {$wp_table}"); |
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} |
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} |
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|
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private function install_wp() |
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{ |
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return db_reset_install( |
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$this->blog_data['name'], |
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$this->user->user_login, |
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$this->user->user_email, |
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$this->blog_data['public'], |
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$this->blog_data['site_url'] |
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); |
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} |
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|
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private function update_user_settings() |
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{ |
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global $wpdb; |
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|
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$user_id = $this->reset_users ? 1 : $this->user->ID; |
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|
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$wpdb->query( |
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$wpdb->prepare( |
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"UPDATE $wpdb->users |
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SET user_pass = '%s', user_activation_key = '' |
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WHERE ID = '%d'", |
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$this->user->user_pass, |
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$user_id |
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) |
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); |
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|
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if ($this->reset_users) { |
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wp_clear_auth_cookie(); |
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wp_set_auth_cookie(true); |
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} |
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} |
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|
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private function restore_backup() |
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{ |
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$this->delete_backup_table_rows($this->preserved); |
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$this->restore_backup_tables($this->backup); |
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$this->restore_user_session_tokens(); |
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$this->assert_theme_plugin_data_needs_reset(); |
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} |
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|
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private function delete_backup_table_rows(array $tables) |
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{ |
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global $wpdb; |
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|
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foreach ($tables as $table) { |
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$wpdb->query("DELETE FROM {$table}"); |
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} |
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} |
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|
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private function restore_backup_tables(array $tables) |
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{ |
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global $wpdb; |
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|
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foreach ($tables as $table => $data) { |
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foreach ($data as $row) { |
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$columns = $values = array(); |
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|
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foreach ($row as $column => $value) { |
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$columns[] = $column; |
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$values[] = esc_sql($value); |
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} |
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|
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$wpdb->query("INSERT INTO $table (" . implode(', ', $columns) . ") VALUES ('" . implode("', '", $values) . "')"); |
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} |
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} |
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} |
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|
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private function restore_user_session_tokens() |
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{ |
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add_user_meta($this->user->ID, 'session_tokens', $this->user_data['session_tokens']); |
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} |
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|
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private function assert_theme_plugin_data_needs_reset() |
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{ |
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if ($this->should_restore_theme_plugin_data()) { |
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$this->restore_theme_plugin_data(); |
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} |
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} |
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|
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private function restore_theme_plugin_data() |
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{ |
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update_option('active_plugins', $this->theme_plugin_data['active-plugins']); |
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update_option('template', $this->theme_plugin_data['template']); |
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update_option('stylesheet', $this->theme_plugin_data['stylesheet']); |
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|
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if (!empty($this->theme_plugin_data['current-theme'])) { |
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update_option('current_theme', $this->theme_plugin_data['current-theme']); |
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} |
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} |
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|
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public function set_reactivate($with_theme_plugin_data) |
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{ |
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$this->reactivate = $with_theme_plugin_data; |
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} |
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|
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private function set_wp_tables() |
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{ |
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global $wpdb; |
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$this->wp_tables = $wpdb->tables(); |
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} |
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|
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public function get_wp_tables() |
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{ |
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return $this->wp_tables; |
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} |
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|
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private function set_user() |
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{ |
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global $current_user; |
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|
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$this->user = (0 !== $current_user->ID) ? |
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wp_get_current_user() : |
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get_userdata(1); |
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} |
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|
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public function get_user() |
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{ |
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return $this->user; |
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} |
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} |
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|
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endif; |
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|
