721 lines
		
	
	
		
			29 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			721 lines
		
	
	
		
			29 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
 | |
| 
 | |
| /**
 | |
|  * WP Captcha
 | |
|  * https://getwpcaptcha.com/
 | |
|  * (c) WebFactory Ltd, 2022 - 2023, www.webfactoryltd.com
 | |
|  */
 | |
| 
 | |
| class WPCaptcha_Setup extends WPCaptcha
 | |
| {
 | |
|     static $wp_filesystem;
 | |
| 
 | |
|     /**
 | |
|      * Actions to run on load, but init would be too early as not all classes are initialized
 | |
|      *
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|      * @return null
 | |
|      */
 | |
|     static function load_actions()
 | |
|     {
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|         self::register_custom_tables();
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|     } // admin_actions
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| 
 | |
|     static function setup_wp_filesystem()
 | |
|     {
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|         global $wp_filesystem;
 | |
| 
 | |
|         if (empty($wp_filesystem)) {
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|             require_once ABSPATH . '/wp-admin/includes/file.php';
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|             WP_Filesystem();
 | |
|         }
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| 
 | |
|         self::$wp_filesystem = $wp_filesystem;
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|         return self::$wp_filesystem;
 | |
|     } // setup_wp_filesystem
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| 
 | |
|     /**
 | |
|      * Check if user has the minimal WP version required by WP Captcha
 | |
|      *
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|      * @since 5.0
 | |
|      *
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|      * @return bool
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|      *
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|      */
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|     static function check_wp_version($min_version)
 | |
|     {
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|         if (!version_compare(get_bloginfo('version'), $min_version,  '>=')) {
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|             add_action('admin_notices', array(__CLASS__, 'notice_min_wp_version'));
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|             return false;
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|         } else {
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|             return true;
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|         }
 | |
|     } // check_wp_version
 | |
| 
 | |
|     /**
 | |
|      * Check if user has the minimal PHP version required by WP Captcha
 | |
|      *
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|      * @since 5.0
 | |
|      *
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|      * @return bool
 | |
|      *
 | |
|      */
 | |
|     static function check_php_version($min_version)
 | |
|     {
 | |
|         if (!version_compare(phpversion(), $min_version,  '>=')) {
 | |
|             add_action('admin_notices', array(__CLASS__, 'notice_min_php_version'));
 | |
|             return false;
 | |
|         } else {
 | |
|             return true;
 | |
|         }
 | |
|     } // check_wp_version
 | |
| 
 | |
|     /**
 | |
|      * Display error message if WP version is too low
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|      *
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|      * @since 5.0
 | |
|      *
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|      * @return null
 | |
|      *
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|      */
 | |
|     static function notice_min_wp_version()
 | |
|     {
 | |
|         WPCaptcha_Utility::wp_kses_wf('<div class="error"><p>' . sprintf(__('WP Captcha plugin <b>requires WordPress version 4.6</b> or higher to function properly. You are using WordPress version %s. Please <a href="%s">update it</a>.', 'advanced-google-recaptcha'), get_bloginfo('version'), admin_url('update-core.php')) . '</p></div>');
 | |
|     } // notice_min_wp_version_error
 | |
| 
 | |
|     /**
 | |
|      * Display error message if PHP version is too low
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|      *
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|      * @since 5.0
 | |
|      *
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|      * @return null
 | |
|      *
 | |
|      */
 | |
|     static function notice_min_php_version()
 | |
|     {
 | |
|         WPCaptcha_Utility::wp_kses_wf('<div class="error"><p>' . sprintf(__('WP Captcha plugin <b>requires PHP version 5.6.20</b> or higher to function properly. You are using PHP version %s. Please <a href="%s" target="_blank">update it</a>.', 'advanced-google-recaptcha'), phpversion(), 'https://wordpress.org/support/update-php/') . '</p></div>');
 | |
|     } // notice_min_wp_version_error
 | |
| 
 | |
| 
 | |
|     /**
 | |
|      * activate doesn't get fired on upgrades so we have to compensate
 | |
|      *
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|      * @since 5.0
 | |
|      *
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|      * @return null
 | |
|      *
 | |
|      */
 | |
|     public static function maybe_upgrade()
 | |
|     {
 | |
|         $meta = self::get_meta();
 | |
|         if (empty($meta['database_ver']) || $meta['database_ver'] < self::$version) {
 | |
|             self::create_custom_tables();
 | |
|         }
 | |
| 
 | |
| 
 | |
|         // Copy options from free
 | |
|         $options = get_option(WPCAPTCHA_OPTIONS_KEY);
 | |
|         if (false === $options) {
 | |
|             $free_options = get_option("agr_options");
 | |
|             if (false !== $free_options && isset($free_options['enable_login'])) {
 | |
|                 $options['captcha'] = $free_options['captcha_type'] == 'v3'?'recaptchav3':'recaptchav2';
 | |
|                 $options['captcha_site_key'] = $free_options['site_key'];
 | |
|                 $options['captcha_secret_key'] = $free_options['secret_key'];
 | |
|                 $options['captcha_show_login'] = $free_options['enable_login'];
 | |
|                 $options['captcha_show_wp_registration'] = $free_options['enable_register'];
 | |
|                 $options['captcha_show_wp_lost_password'] = $free_options['enable_lost_password'];
 | |
|                 $options['captcha_show_wp_comment'] = $free_options['enable_comment_form'];
 | |
|                 $options['captcha_show_woo_registration'] = $free_options['enable_woo_register'];
 | |
|                 $options['captcha_show_woo_checkout'] = $free_options['enable_woo_checkout'];
 | |
|                 $options['captcha_show_edd_registration'] = $free_options['enable_edd_register'];
 | |
|                 $options['captcha_show_bp_registration'] = $free_options['enable_bp_register'];
 | |
| 
 | |
|                 update_option(WPCAPTCHA_OPTIONS_KEY, $options);
 | |
|                 ///delete_option("agr_options");
 | |
|             }
 | |
|         }
 | |
|     } // maybe_upgrade
 | |
| 
 | |
| 
 | |
|     /**
 | |
|      * Get plugin options
 | |
|      *
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|      * @since 5.0
 | |
|      *
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|      * @return array options
 | |
|      *
 | |
|      */
 | |
|     static function get_options()
 | |
|     {
 | |
|         $options = get_option(WPCAPTCHA_OPTIONS_KEY, array());
 | |
| 
 | |
|         if (!is_array($options)) {
 | |
|             $options = array();
 | |
|         }
 | |
|         $options = array_merge(self::default_options(), $options);
 | |
| 
 | |
|         return $options;
 | |
|     } // get_options
 | |
| 
 | |
|     /**
 | |
|      * Register all settings
 | |
|      *
 | |
|      * @since 5.0
 | |
|      *
 | |
|      * @return false
 | |
|      *
 | |
|      */
 | |
|     static function register_settings()
 | |
|     {
 | |
|         register_setting(WPCAPTCHA_OPTIONS_KEY, WPCAPTCHA_OPTIONS_KEY, array(__CLASS__, 'sanitize_settings'));
 | |
|     } // register_settings
 | |
| 
 | |
| 
 | |
|     /**
 | |
|      * Set default options
 | |
|      *
 | |
|      * @since 5.0
 | |
|      *
 | |
|      * @return null
 | |
|      *
 | |
|      */
 | |
|     static function default_options()
 | |
|     {
 | |
|         $defaults = array(
 | |
|             'login_protection'                        => 0,
 | |
|             'max_login_retries'                       => 3,
 | |
|             'retries_within'                          => 5,
 | |
|             'lockout_length'                          => 60,
 | |
|             'lockout_invalid_usernames'               => 1,
 | |
|             'mask_login_errors'                       => 0,
 | |
|             'show_credit_link'                        => 0,
 | |
|             'anonymous_logging'                       => 0,
 | |
|             'block_bots'                              => 0,
 | |
|             'log_passwords'                           => 0,
 | |
|             'instant_block_nonusers'                  => 0,
 | |
|             'cookie_lifetime'                         => 14,
 | |
|             'country_blocking_mode'                   => 'none',
 | |
|             'country_blocking_countries'              => '',
 | |
|             'block_undetermined_countries'            => 0,
 | |
|             'captcha'                                 => 'disabled',
 | |
|             'captcha_secret_key'                      => '',
 | |
|             'captcha_site_key'                        => '',
 | |
|             'captcha_show_login'                      => 1,
 | |
|             'captcha_show_wp_registration'            => 1,
 | |
|             'captcha_show_wp_lost_password'           => 1,
 | |
|             'captcha_show_wp_comment'                 => 1,
 | |
|             'captcha_show_woo_registration'           => 0,
 | |
|             'captcha_show_woo_checkout'               => 0,
 | |
|             'captcha_show_edd_registration'           => 0,
 | |
|             'captcha_show_bp_registration'            => 0,
 | |
|             'login_url'                               => '',
 | |
|             'login_redirect_url'                      => '',
 | |
|             'global_block'                            => 0,
 | |
|             'country_global_block'                    => 0,
 | |
|             'uninstall_delete'                        => 0,
 | |
|             'block_message'                           => 'We\'re sorry, but your IP has been blocked due to too many recent failed login attempts.',
 | |
|             'block_message_country'                   => 'We\'re sorry, but access from your location is not allowed.',
 | |
|             'global_unblock_key'                      => 'll' . md5(time() . rand(10000, 9999)),
 | |
|             'whitelist'                               => array(),
 | |
|             'firewall_block_bots'                     => 0,
 | |
|             'firewall_directory_traversal'            => 0,
 | |
|             'design_enable'                           => 0,
 | |
|             'design_template'                         => 'orange',
 | |
|             'design_background_color'                 => '',
 | |
|             'design_background_image'                 => '',
 | |
|             'design_logo'                             => '',
 | |
|             'design_logo_url'                         => '',
 | |
|             'design_logo_width'                       => '',
 | |
|             'design_logo_height'                      => '',
 | |
|             'design_logo_margin_bottom'               => '',
 | |
|             'design_text_color'                       => '#3c434a',
 | |
|             'design_link_color'                       => '#2271b1',
 | |
|             'design_link_hover_color'                 => '#135e96',
 | |
|             'design_form_border_color'                => '#FFFFFF',
 | |
|             'design_form_border_width'                => 1,
 | |
|             'design_form_width'                       => '',
 | |
|             'design_form_width'                       => '',
 | |
|             'design_form_height'                      => '',
 | |
|             'design_form_padding'                     => 26,
 | |
|             'design_form_border_radius'               => 2,
 | |
|             'design_form_background_color'            => '',
 | |
|             'design_form_background_image'            => '',
 | |
|             'design_label_font_size'                  => 14,
 | |
|             'design_label_text_color'                 => '#3c434a',
 | |
|             'design_field_font_size'                  => 13,
 | |
|             'design_field_text_color'                 => '#3c434a',
 | |
|             'design_field_border_color'               => '#8c8f94',
 | |
|             'design_field_border_width'               => 1,
 | |
|             'design_field_border_radius'              => 2,
 | |
|             'design_field_background_color'           => '#ffffff',
 | |
|             'design_button_font_size'                 => 14,
 | |
|             'design_button_text_color'                => '',
 | |
|             'design_button_border_color'              => '#2271b1',
 | |
|             'design_button_border_width'              => 0,
 | |
|             'design_button_border_radius'             => 2,
 | |
|             'design_button_background_color'          => '#2271b1',
 | |
|             'design_button_hover_text_color'          => '',
 | |
|             'design_button_hover_border_color'        => '',
 | |
|             'design_button_hover_background_color'    => '',
 | |
|             'design_custom_css'                       => ''
 | |
|         );
 | |
| 
 | |
|         return $defaults;
 | |
|     } // default_options
 | |
| 
 | |
| 
 | |
|     /**
 | |
|      * Sanitize settings on save
 | |
|      *
 | |
|      * @since 5.0
 | |
|      *
 | |
|      * @return array updated options
 | |
|      *
 | |
|      */
 | |
|     static function sanitize_settings($options)
 | |
|     {
 | |
|         $old_options = self::get_options();
 | |
| 
 | |
|         if (isset($options['captcha_verified']) && $options['captcha_verified'] != 1 && $options['captcha'] != 'disabled') {
 | |
|             $options['captcha']            = $old_options['captcha'];
 | |
|             $options['captcha_site_key']   = $old_options['captcha_site_key'];
 | |
|             $options['captcha_secret_key'] = $old_options['captcha_secret_key'];
 | |
|         }
 | |
| 
 | |
|         if (isset($options['captcha']) && ($options['captcha'] == 'disabled' || $options['captcha'] == 'builtin')) {
 | |
|             $options['captcha_site_key']   = '';
 | |
|             $options['captcha_secret_key'] = '';
 | |
|         }
 | |
| 
 | |
|         if (isset($_POST['submit'])) {
 | |
|             foreach ($options as $key => $value) {
 | |
|                 switch ($key) {
 | |
|                     case 'lockout_invalid_usernames':
 | |
|                     case 'mask_login_errors':
 | |
|                     case 'show_credit_link':
 | |
|                         $options[$key] = trim($value);
 | |
|                         break;
 | |
|                     case 'max_login_retries':
 | |
|                     case 'retries_within':
 | |
|                     case 'lockout_length':
 | |
|                         $options[$key] = (int) $value;
 | |
|                         break;
 | |
|                 } // switch
 | |
|             } // foreach
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['login_protection'])) {
 | |
|             $options['login_protection'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['lockout_invalid_usernames'])) {
 | |
|             $options['lockout_invalid_usernames'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['mask_login_errors'])) {
 | |
|             $options['mask_login_errors'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['anonymous_logging'])) {
 | |
|             $options['anonymous_logging'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['block_bots'])) {
 | |
|             $options['block_bots'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['instant_block_nonusers'])) {
 | |
|             $options['instant_block_nonusers'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['country_blocking_mode'])) {
 | |
|             $options['country_blocking_mode'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['block_undetermined_countries'])) {
 | |
|             $options['block_undetermined_countries'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['global_block'])) {
 | |
|             $options['global_block'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['country_global_block'])) {
 | |
|             $options['country_global_block'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['uninstall_delete'])) {
 | |
|             $options['uninstall_delete'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['show_credit_link'])) {
 | |
|             $options['show_credit_link'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['firewall_block_bots'])) {
 | |
|             $options['firewall_block_bots'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['firewall_directory_traversal'])) {
 | |
|             $options['firewall_directory_traversal'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['log_passwords'])) {
 | |
|             $options['log_passwords'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['captcha_show_login'])) {
 | |
|             $options['captcha_show_login'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['captcha_show_wp_registration'])) {
 | |
|             $options['captcha_show_wp_registration'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['captcha_show_wp_lost_password'])) {
 | |
|             $options['captcha_show_wp_lost_password'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['captcha_show_wp_comment'])) {
 | |
|             $options['captcha_show_wp_comment'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['captcha_show_woo_registration'])) {
 | |
|             $options['captcha_show_woo_registration'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['captcha_show_woo_checkout'])) {
 | |
|             $options['captcha_show_woo_checkout'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['design_enable'])) {
 | |
|             $options['design_enable'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['captcha_show_edd_registration'])) {
 | |
|             $options['captcha_show_edd_registration'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (!isset($options['captcha_show_bp_registration'])) {
 | |
|             $options['captcha_show_bp_registration'] = 0;
 | |
|         }
 | |
| 
 | |
|         if (isset($_POST['wpcaptcha_import_file'])) {
 | |
|             $mimes = array(
 | |
|                 'text/plain',
 | |
|                 'text/anytext',
 | |
|                 'application/txt'
 | |
|             );
 | |
| 
 | |
|             if (!in_array($_FILES['wpcaptcha_import_file']['type'], $mimes)) {
 | |
|                 WPCaptcha_Utility::display_notice(
 | |
|                     sprintf(
 | |
|                         "WARNING: Not a valid CSV file - the Mime Type '%s' is wrong! No settings have been imported.",
 | |
|                         $_FILES['wpcaptcha_import_file']['type']
 | |
|                     ),
 | |
|                     "error"
 | |
|                 );
 | |
|             } else if (($handle = fopen($_FILES['wpcaptcha_import_file']['tmp_name'], "r")) !== false) {
 | |
|                 $options_json = json_decode(fread($handle, 8192), ARRAY_A);
 | |
| 
 | |
|                 if (is_array($options_json) && array_key_exists('max_login_retries', $options_json) && array_key_exists('retries_within', $options_json) && array_key_exists('lockout_length', $options_json)) {
 | |
|                     $options = $options_json;
 | |
|                     WPCaptcha_Utility::display_notice("Settings have been imported.", "success");
 | |
|                 } else {
 | |
|                     WPCaptcha_Utility::display_notice("Invalid import file! No settings have been imported.", "error");
 | |
|                 }
 | |
|             } else {
 | |
|                 WPCaptcha_Utility::display_notice("Invalid import file! No settings have been imported.", "error");
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         if ($old_options['firewall_block_bots'] != $options['firewall_block_bots'] || $old_options['firewall_directory_traversal'] != $options['firewall_directory_traversal']) {
 | |
|             self::firewall_setup($options);
 | |
|         }
 | |
| 
 | |
|         WPCaptcha_Utility::clear_3rdparty_cache();
 | |
|         $options['last_options_edit'] = current_time('mysql', true);
 | |
| 
 | |
|         return array_merge($old_options, $options);
 | |
|     } // sanitize_settings
 | |
| 
 | |
|     /**
 | |
|      * Get plugin metadata
 | |
|      *
 | |
|      * @since 5.0
 | |
|      *
 | |
|      * @return array meta
 | |
|      *
 | |
|      */
 | |
|     static function get_meta()
 | |
|     {
 | |
|         $meta = get_option(WPCAPTCHA_META_KEY, array());
 | |
| 
 | |
|         if (!is_array($meta) || empty($meta)) {
 | |
|             $meta['first_version'] = self::get_plugin_version();
 | |
|             $meta['first_install'] = current_time('timestamp');
 | |
|             update_option(WPCAPTCHA_META_KEY, $meta);
 | |
|         }
 | |
| 
 | |
|         return $meta;
 | |
|     } // get_meta
 | |
| 
 | |
|     static function update_meta($key, $value)
 | |
|     {
 | |
|         $meta = get_option(WPCAPTCHA_META_KEY, array());
 | |
|         $meta[$key] = $value;
 | |
|         update_option(WPCAPTCHA_META_KEY, $meta);
 | |
|     } // update_meta
 | |
| 
 | |
|     /**
 | |
|      * Register custom tables
 | |
|      *
 | |
|      * @since 5.0
 | |
|      *
 | |
|      * @return null
 | |
|      *
 | |
|      */
 | |
|     static function register_custom_tables()
 | |
|     {
 | |
|         global $wpdb;
 | |
| 
 | |
|         $wpdb->wpcatcha_login_fails = $wpdb->prefix . 'wpc_login_fails';
 | |
|         $wpdb->wpcatcha_accesslocks = $wpdb->prefix . 'wpc_accesslocks';
 | |
|     } // register_custom_tables
 | |
| 
 | |
|     /**
 | |
|      * Create custom tables
 | |
|      *
 | |
|      * @since 5.0
 | |
|      *
 | |
|      * @return null
 | |
|      *
 | |
|      */
 | |
|     static function create_custom_tables()
 | |
|     {
 | |
|         global $wpdb;
 | |
|         require_once ABSPATH . 'wp-admin/includes/upgrade.php';
 | |
| 
 | |
|         self::register_custom_tables();
 | |
| 
 | |
|         $wpcaptcha_login_fails = "CREATE TABLE " . $wpdb->wpcatcha_login_fails . " (
 | |
| 			`login_attempt_ID` bigint(20) NOT NULL AUTO_INCREMENT,
 | |
| 			`user_id` bigint(20) NOT NULL,
 | |
| 			`login_attempt_date` datetime NOT NULL default '0000-00-00 00:00:00',
 | |
| 			`login_attempt_IP` varchar(100) NOT NULL default '',
 | |
|             `failed_user` varchar(200) NOT NULL default '',
 | |
|             `failed_pass` varchar(200) NOT NULL default '',
 | |
|             `reason` varchar(200) NULL,
 | |
| 			PRIMARY KEY  (`login_attempt_ID`)
 | |
| 			);";
 | |
|         dbDelta($wpcaptcha_login_fails);
 | |
| 
 | |
|         $wpcaptcha_accesslocks = "CREATE TABLE " . $wpdb->wpcatcha_accesslocks . " (
 | |
| 			`accesslock_ID` bigint(20) NOT NULL AUTO_INCREMENT,
 | |
| 			`user_id` bigint(20) NOT NULL,
 | |
| 			`accesslock_date` datetime NOT NULL default '0000-00-00 00:00:00',
 | |
| 			`release_date` datetime NOT NULL default '0000-00-00 00:00:00',
 | |
| 			`accesslock_IP` varchar(100) NOT NULL default '',
 | |
|             `reason` varchar(200) NULL,
 | |
|             `unlocked` smallint(20) NOT NULL default '0',
 | |
| 			PRIMARY KEY  (`accesslock_ID`)
 | |
| 			);";
 | |
|         dbDelta($wpcaptcha_accesslocks);
 | |
| 
 | |
|         self::update_meta('database_ver', self::$version);
 | |
|     } // create_custom_tables
 | |
| 
 | |
| 
 | |
|     static function firewall_setup($options = false)
 | |
|     {
 | |
|         self::setup_wp_filesystem();
 | |
|         self::firewall_remove_rules();
 | |
| 
 | |
|         if (false === $options) {
 | |
|             $options = get_option(WPCAPTCHA_OPTIONS_KEY, array());
 | |
|         }
 | |
| 
 | |
|         $htaccess = self::$wp_filesystem->get_contents(WPCaptcha_Utility::get_home_path() . '.htaccess');
 | |
| 
 | |
|         $firewall_rules = [];
 | |
|         $firewall_rules[] = '# BEGIN WP Captcha Firewall';
 | |
| 
 | |
|         if ($options['firewall_block_bots']) {
 | |
|             $firewall_rules[] = '<IfModule mod_rewrite.c>';
 | |
| 
 | |
|             $firewall_rules[] = 'RewriteCond %{HTTP_USER_AGENT} (ahrefs|alexibot|majestic|mj12bot|rogerbot) [NC,OR]';
 | |
|             $firewall_rules[] = 'RewriteCond %{HTTP_USER_AGENT} (econtext|eolasbot|eventures|liebaofast|nominet|oppo\sa33) [NC,OR]';
 | |
|             $firewall_rules[] = 'RewriteCond %{HTTP_USER_AGENT} (ahrefs|alexibot|majestic|mj12bot|rogerbot) [NC,OR]';
 | |
|             $firewall_rules[] = 'RewriteCond %{HTTP_USER_AGENT} (econtext|eolasbot|eventures|liebaofast|nominet|oppo\sa33) [NC,OR]';
 | |
|             $firewall_rules[] = 'RewriteCond %{HTTP_USER_AGENT} (acapbot|acoonbot|asterias|attackbot|backdorbot|becomebot|binlar|blackwidow|blekkobot|blexbot|blowfish|bullseye|bunnys|butterfly|careerbot|casper|checkpriv|cheesebot|cherrypick|chinaclaw|choppy|clshttp|cmsworld|copernic|copyrightcheck|cosmos|crescent|cy_cho|datacha|demon|diavol|discobot|dittospyder|dotbot|dotnetdotcom|dumbot|emailcollector|emailsiphon|emailwolf|extract|eyenetie|feedfinder|flaming|flashget|flicky|foobot|g00g1e|getright|gigabot|go-ahead-got|gozilla|grabnet|grafula|harvest|heritrix|httrack|icarus6j|jetbot|jetcar|jikespider|kmccrew|leechftp|libweb|linkextractor|linkscan|linkwalker|loader|masscan|miner|mechanize|morfeus|moveoverbot|netmechanic|netspider|nicerspro|nikto|ninja|nutch|octopus|pagegrabber|petalbot|planetwork|postrank|proximic|purebot|pycurl|python|queryn|queryseeker|radian6|radiation|realdownload|scooter|seekerspider|semalt|siclab|sindice|sistrix|sitebot|siteexplorer|sitesnagger|skygrid|smartdownload|snoopy|sosospider|spankbot|spbot|sqlmap|stackrambler|stripper|sucker|surftbot|sux0r|suzukacz|suzuran|takeout|teleport|telesoft|true_robots|turingos|turnit|vampire|vikspider|voideye|webleacher|webreaper|webstripper|webvac|webviewer|webwhacker|winhttp|wwwoffle|woxbot|xaldon|xxxyy|yamanalab|yioopbot|youda|zeus|zmeu|zune|zyborg) [NC]';
 | |
| 
 | |
|             $firewall_rules[] = 'RewriteCond %{REMOTE_HOST} (163data|amazonaws|colocrossing|crimea|g00g1e|justhost|kanagawa|loopia|masterhost|onlinehome|poneytel|sprintdatacenter|reverse.softlayer|safenet|ttnet|woodpecker|wowrack) [NC]';
 | |
| 
 | |
|             $firewall_rules[] = 'RewriteCond %{HTTP_REFERER} (semalt\.com|todaperfeita) [NC,OR]';
 | |
|             $firewall_rules[] = 'RewriteCond %{HTTP_REFERER} (blue\spill|cocaine|ejaculat|erectile|erections|hoodia|huronriveracres|impotence|levitra|libido|lipitor|phentermin|pro[sz]ac|sandyauer|tramadol|troyhamby|ultram|unicauca|valium|viagra|vicodin|xanax|ypxaieo) [NC]';
 | |
| 
 | |
|             $firewall_rules[] = 'RewriteRule .* - [F,L]';
 | |
|             $firewall_rules[] = '</IfModule>';
 | |
|         }
 | |
| 
 | |
|         if ($options['firewall_directory_traversal']) {
 | |
|             $firewall_rules[] = '<IfModule mod_rewrite.c>';
 | |
| 
 | |
|             $firewall_rules[] = 'RewriteCond %{QUERY_STRING} (((/|%2f){3,3})|((\.|%2e){3,3})|((\.|%2e){2,2})(/|%2f|%u2215)) [NC,OR]';
 | |
|             $firewall_rules[] = 'RewriteCond %{QUERY_STRING} (/|%2f)(:|%3a)(/|%2f) [NC,OR]';
 | |
|             $firewall_rules[] = 'RewriteCond %{QUERY_STRING} (/|%2f)(\*|%2a)(\*|%2a)(/|%2f) [NC,OR]';
 | |
|             $firewall_rules[] = 'RewriteCond %{QUERY_STRING} (absolute_|base|root_)(dir|path)(=|%3d)(ftp|https?) [NC,OR]';
 | |
|             $firewall_rules[] = 'RewriteCond %{QUERY_STRING} (/|%2f)(=|%3d|$&|_mm|cgi(\.|-)|inurl(:|%3a)(/|%2f)|(mod|path)(=|%3d)(\.|%2e)) [NC,OR]';
 | |
| 
 | |
|             $firewall_rules[] = 'RewriteCond %{REQUEST_URI} (\^|`|<|>|\\\\|\|) [NC,OR]';
 | |
|             $firewall_rules[] = 'RewriteCond %{REQUEST_URI} ([a-z0-9]{2000,}) [NC]';
 | |
| 
 | |
|             $firewall_rules[] = 'RewriteRule .* - [F,L]';
 | |
|             $firewall_rules[] = '</IfModule>';
 | |
|         }
 | |
| 
 | |
|         $firewall_rules[] = '# END WP Captcha Firewall';
 | |
| 
 | |
|         $htaccess = implode(PHP_EOL, $firewall_rules) . PHP_EOL . $htaccess;
 | |
| 
 | |
|         if (count($firewall_rules) > 2) {
 | |
|             $firewall_test = self::firewall_test_htaccess($htaccess);
 | |
|             if (is_wp_error($firewall_test)) {
 | |
|                 WPCaptcha_Utility::display_notice(
 | |
|                     $firewall_test->get_error_message(),
 | |
|                     "error"
 | |
|                 );
 | |
|             } else {
 | |
|                 self::$wp_filesystem->put_contents(WPCaptcha_Utility::get_home_path() . '.htaccess', $htaccess);
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     static function firewall_test_htaccess($new_content)
 | |
|     {
 | |
|         $uploads_directory = wp_upload_dir();
 | |
|         $test_id = rand(1000, 9999);
 | |
|         $htaccess_test_folder = $uploads_directory['basedir'] . '/htaccess-test-' . $test_id . '/';
 | |
|         $htaccess_test_url = $uploads_directory['baseurl'] . '/htaccess-test-' . $test_id . '/';
 | |
| 
 | |
|         // Create test directory and files
 | |
|         if (!self::$wp_filesystem->is_dir($htaccess_test_folder)) {
 | |
|             if (true !== self::$wp_filesystem->mkdir($htaccess_test_folder, 0777)) {
 | |
|                 return new WP_Error('firewall_failed', 'Failed to create test directory. Please check that your uploads folder is writable.', false);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         if (true !== self::$wp_filesystem->put_contents($htaccess_test_folder . 'index.html', 'htaccess-test-' . $test_id)) {
 | |
|             return new WP_Error('firewall_failed', 'Failed to create test files. Please check that your uploads folder is writable.', false);
 | |
|         }
 | |
| 
 | |
|         if (true !== self::$wp_filesystem->put_contents($htaccess_test_folder . '.htaccess', $new_content)) {
 | |
|             return new WP_Error('firewall_failed', 'Failed to create test directory and files. Please check that your uploads folder is writeable.', false);
 | |
|         }
 | |
| 
 | |
|         // Retrieve test file over http
 | |
|         $response = wp_remote_get($htaccess_test_url . 'index.html', array('sslverify' => false, 'redirection' => 0));
 | |
|         $response_code = wp_remote_retrieve_response_code($response);
 | |
| 
 | |
|         // Remove Test Directory
 | |
|         self::$wp_filesystem->delete($htaccess_test_folder . '.htaccess');
 | |
|         self::$wp_filesystem->delete($htaccess_test_folder . 'index.html');
 | |
|         self::$wp_filesystem->rmdir($htaccess_test_folder);
 | |
| 
 | |
|         // Check if test file content is what we expect
 | |
|         if ((in_array($response_code, range(200, 299)) && !is_wp_error($response) && wp_remote_retrieve_body($response) == 'htaccess-test-' . $test_id) || (in_array($response_code, range(300, 399)) && !is_wp_error($response))) {
 | |
|             return true;
 | |
|         } else {
 | |
|             return new WP_Error('firewall_failed', 'Unfortunately it looks like installing these firewall rules could cause your entire site, including the admin, to become inaccessible. Fix the errors before saving', false);
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     static function firewall_remove_rules()
 | |
|     {
 | |
| 
 | |
|         if (self::$wp_filesystem->is_writable(WPCaptcha_Utility::get_home_path() . '.htaccess')) {
 | |
| 
 | |
|             $htaccess_rules = self::$wp_filesystem->get_contents(WPCaptcha_Utility::get_home_path() . '.htaccess');
 | |
| 
 | |
|             if ($htaccess_rules) {
 | |
|                 $htaccess_rules = explode(PHP_EOL, $htaccess_rules);
 | |
|                 $found = false;
 | |
|                 $new_content = '';
 | |
| 
 | |
|                 foreach ($htaccess_rules as $htaccess_rule) {
 | |
|                     if ($htaccess_rule == '# BEGIN WP Captcha Firewall') {
 | |
|                         $found = true;
 | |
|                     }
 | |
| 
 | |
|                     if (!$found) {
 | |
|                         $new_content .= $htaccess_rule . PHP_EOL;
 | |
|                     }
 | |
| 
 | |
|                     if ($htaccess_rule == '# END WP Captcha Firewall') {
 | |
|                         $found = false;
 | |
|                     }
 | |
|                 }
 | |
| 
 | |
|                 $new_content = trim($new_content, PHP_EOL);
 | |
| 
 | |
|                 $f = @fopen(WPCaptcha_Utility::get_home_path() . '.htaccess', 'w');
 | |
|                 self::$wp_filesystem->put_contents(WPCaptcha_Utility::get_home_path() . '.htaccess', $new_content);
 | |
| 
 | |
|                 return true;
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         return false;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Actions on plugin activation
 | |
|      *
 | |
|      * @since 5.0
 | |
|      *
 | |
|      * @return null
 | |
|      *
 | |
|      */
 | |
|     static function activate()
 | |
|     {
 | |
|         self::create_custom_tables();
 | |
|         WPCaptcha_Admin::reset_pointers();
 | |
|     } // activate
 | |
| 
 | |
| 
 | |
|     /**
 | |
|      * Actions on plugin deactivaiton
 | |
|      *
 | |
|      * @since 5.0
 | |
|      *
 | |
|      * @return null
 | |
|      *
 | |
|      */
 | |
|     static function deactivate()
 | |
|     {
 | |
|     } // deactivate
 | |
| 
 | |
|     /**
 | |
|      * Actions on plugin uninstall
 | |
|      *
 | |
|      * @since 5.0
 | |
|      *
 | |
|      * @return null
 | |
|      */
 | |
|     static function uninstall()
 | |
|     {
 | |
|         global $wpdb;
 | |
| 
 | |
|         $options = get_option(WPCAPTCHA_OPTIONS_KEY, array());
 | |
| 
 | |
|         if ($options['uninstall_delete'] == '1') {
 | |
|             delete_option(WPCAPTCHA_OPTIONS_KEY);
 | |
|             delete_option(WPCAPTCHA_META_KEY);
 | |
|             delete_option(WPCAPTCHA_POINTERS_KEY);
 | |
|             delete_option(WPCAPTCHA_NOTICES_KEY);
 | |
| 
 | |
|             $wpdb->query("DROP TABLE IF EXISTS " . $wpdb->prefix . "wpc_login_fails");
 | |
|             $wpdb->query("DROP TABLE IF EXISTS " . $wpdb->prefix . "wpc_accesslocks");
 | |
|         }
 | |
|     } // uninstall
 | |
| } // class
 |