| 1 |
<?php |
| 2 |
/** |
| 3 |
* Handle user agent lockout settings. |
| 4 |
* |
| 5 |
* @package WP_Defender\Model\Setting |
| 6 |
*/ |
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|
| 8 |
namespace WP_Defender\Model\Setting; |
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|
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use Calotes\Model\Setting; |
| 11 |
use WP_Defender\Component\User_Agent as User_Agent_Service; |
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|
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/** |
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* Model for user agent lockout settings. |
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* |
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* Since with v5.4.0 blocklisted UA has groups: |
| 17 |
* 'Blocklist Presets' is associated with the properties $blocklist_presets & $blocklist_preset_values, |
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* 'Scripts Presets' is associated with the properties $script_presets & $script_preset_values, |
| 19 |
* 'Custom User Agents' is associated with the property $blacklist. |
| 20 |
*/ |
| 21 |
class User_Agent_Lockout extends Setting { |
| 22 |
const BOT_LOCKOUT_TYPE_ALLOWED = array( 'temporary', 'permanent' ); |
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const BOT_LOCKOUT_DURATION_UNIT_ALLOWED = array( 'seconds', 'minutes', 'hours' ); |
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|
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/** |
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* Option name. |
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* |
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* @var string |
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*/ |
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protected $table = 'wd_user_agent_settings'; |
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|
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/** |
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* Is module enabled? |
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* |
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* @var bool |
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* @defender_property |
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*/ |
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public $enabled = false; |
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|
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/** |
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* Blacklist User Agents. |
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* |
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* @var string |
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* @defender_property |
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*/ |
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public $blacklist = ''; |
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|
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/** |
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* Whitelist User Agents. |
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* |
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* @var string |
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* @defender_property |
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*/ |
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public $whitelist = ''; |
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|
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/** |
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* Message to display for user agent lockout. |
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* |
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* @var string |
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* @defender_property |
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* @sanitize sanitize_textarea_field |
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*/ |
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public $message = ''; |
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|
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/** |
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* Is empty headers allowed? |
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* |
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* @var bool |
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* @defender_property |
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*/ |
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public $empty_headers = false; |
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|
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/** |
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* Is blocklist presets enabled? |
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* |
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* @var bool |
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* @defender_property |
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*/ |
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public $blocklist_presets = true; |
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|
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/** |
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* The list of Blocklist presets. |
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* |
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* @var array |
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* @defender_property |
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*/ |
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public $blocklist_preset_values = array(); |
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|
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/** |
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* Is script presets enabled? |
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* |
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* @var bool |
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* @defender_property |
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*/ |
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public $script_presets = false; |
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|
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/** |
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* The list of Script presets. |
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* |
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* @var array |
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* @defender_property |
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*/ |
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public $script_preset_values = array(); |
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|
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/** |
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* Is malicious bot enabled? |
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* |
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* @var bool |
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* @defender_property |
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*/ |
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public $malicious_bot_enabled = false; |
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|
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/** |
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* How the lock is going to be, if we choose permanent, then their IP will be blacklisted. |
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* |
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* @var string |
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* @defender_property |
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* @rule in[temporary,permanent] |
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*/ |
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public $malicious_bot_lockout_type = 'temporary'; |
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|
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/** |
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* Duration for the lockout. |
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* |
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* @var int |
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* @defender_property |
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* @rule required|integer |
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*/ |
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public $malicious_bot_lockout_duration = 300; |
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|
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/** |
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* Duration unit. |
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* |
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* @var string |
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* @defender_property |
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* @rule in[seconds,minutes,hours] |
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*/ |
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public $malicious_bot_lockout_duration_unit = 'seconds'; |
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|
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/** |
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* The message to show on frontend when a malicious bot is triggered. |
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* |
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* @var string |
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* @defender_property |
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* @sanitize sanitize_textarea_field |
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*/ |
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public $malicious_bot_message = ''; |
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|
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/** |
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* Is fake bots enabled? |
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* |
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* @var bool |
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* @defender_property |
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*/ |
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public $fake_bots_enabled = false; |
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|
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/** |
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* How the lock is going to be, if we choose permanent, then their IP will be blacklisted. |
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* |
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* @var string |
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* @defender_property |
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* @rule in[temporary,permanent] |
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*/ |
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public $fake_bots_lockout_type = 'temporary'; |
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|
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/** |
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* Duration for the lockout. |
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* |
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* @var int |
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* @defender_property |
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* @rule required|integer |
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*/ |
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public $fake_bots_lockout_duration = 300; |
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|
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/** |
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* Duration unit. |
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* |
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* @var string |
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* @defender_property |
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* @rule in[seconds,minutes,hours] |
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*/ |
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public $fake_bots_lockout_duration_unit = 'seconds'; |
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|
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/** |
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* The message to show on frontend when a fake bot is triggered. |
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* |
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* @var string |
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* @defender_property |
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* @sanitize sanitize_textarea_field |
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*/ |
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public $fake_bots_message = ''; |
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|
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/** |
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* Old properties of the Bot Trap option for backward compatibility. We can remove them in future versions. |
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* Is bot trap enabled? |
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* |
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* @var bool |
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* @defender_property |
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*/ |
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public $bot_trap_enabled = false; |
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|
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/** |
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* How the lock is going to be, if we choose permanent, then their IP will be blacklisted. |
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* |
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* @var string |
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* @defender_property |
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* @rule in[temporary,permanent] |
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*/ |
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public $bot_trap_lockout_type = 'temporary'; |
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|
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/** |
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* Duration for the lockout. |
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* |
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* @var int |
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* @defender_property |
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* @rule required|integer |
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*/ |
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public $bot_trap_lockout_duration = 300; |
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|
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/** |
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* Duration unit. |
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* |
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* @var string |
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* @defender_property |
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* @rule in[seconds,minutes,hours] |
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*/ |
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public $bot_trap_lockout_duration_unit = 'seconds'; |
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|
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/** |
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* Rules for validation. |
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* |
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* @var array |
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*/ |
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protected $rules = array( |
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array( array( 'enabled', 'empty_headers', 'blocklist_presets', 'script_presets' ), 'boolean' ), |
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array( array( 'malicious_bot_lockout_type' ), 'in', self::BOT_LOCKOUT_TYPE_ALLOWED ), |
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array( array( 'malicious_bot_lockout_duration_unit' ), 'in', self::BOT_LOCKOUT_DURATION_UNIT_ALLOWED ), |
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array( array( 'fake_bots_lockout_type' ), 'in', self::BOT_LOCKOUT_TYPE_ALLOWED ), |
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array( array( 'fake_bots_lockout_duration_unit' ), 'in', self::BOT_LOCKOUT_DURATION_UNIT_ALLOWED ), |
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); |
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|
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/** |
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* Get default values. |
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* |
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* @return array |
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*/ |
| 247 |
public function get_default_values(): array { |
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// Allowled User Agents. |
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$whitelist = "a6-indexer\nadsbot-google\naolbuild\napis-google\nbaidu\nbingbot\nbingpreview"; |
| 250 |
$whitelist .= "\nbutterfly\ncloudflare\nchrome\nduckduckbot\nembedly\nfacebookexternalhit\nfacebot\ngoogle page speed"; |
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$whitelist .= "\ngooglebot\nia_archiver\nlinkedinbot\nmediapartners-google\nmsnbot\nnetcraftsurvey"; |
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$whitelist .= "\noutbrain\npinterest\nquora\nslackbot\nslurp\ntweetmemebot\ntwitterbot\nuptimerobot"; |
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$whitelist .= "\nurlresolver\nvkshare\nw3c_validator\nwordpress\nwp rocket\nyandex"; |
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$message = esc_html__( 'You have been blocked from accessing this website.', 'defender-security' ); |
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|
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return array( |
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'message' => $message, |
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'malicious_bot_message' => $message, |
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'fake_bots_message' => $message, |
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'whitelist' => $whitelist, |
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// Blocked User Agents. |
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'blacklist' => '', |
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'blocklist_presets' => true, |
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'blocklist_preset_values' => array( 'mj12bot', 'dotbot' ), |
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'script_presets' => false, |
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'script_preset_values' => array(), |
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); |
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} |
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|
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/** |
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* Initializes the object by setting default values for the message, whitelist, and blacklist properties. |
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* This function retrieves the default values from the get_default_values() method and assigns them to the |
| 273 |
* corresponding properties of the object. |
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* |
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* @return void |
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*/ |
| 277 |
protected function before_load(): void { |
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$default_values = $this->get_default_values(); |
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$this->message = $default_values['message']; |
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$this->whitelist = $default_values['whitelist']; |
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$this->blacklist = $default_values['blacklist']; |
| 282 |
$this->blocklist_presets = $default_values['blocklist_presets']; |
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$this->blocklist_preset_values = $default_values['blocklist_preset_values']; |
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$this->script_presets = $default_values['script_presets']; |
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$this->script_preset_values = $default_values['script_preset_values']; |
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$this->malicious_bot_message = $default_values['malicious_bot_message']; |
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$this->fake_bots_message = $default_values['fake_bots_message']; |
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} |
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|
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/** |
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* Checks if the User Agent Lockout feature is active. |
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* |
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* @return bool Returns true if the User Agent Lockout feature is active, false otherwise. |
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*/ |
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public function is_active(): bool { |
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return (bool) apply_filters( |
| 297 |
'wd_user_agents_enable', |
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$this->enabled |
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); |
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} |
| 301 |
|
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/** |
| 303 |
* Get a list of blocklisted or allowlisted data. |
| 304 |
* |
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* @param string $type blocklist|allowlist. |
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* @param bool $lower Whether to convert the list to lowercase. |
| 307 |
* |
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* @return array |
| 309 |
*/ |
| 310 |
public function get_lockout_list( $type = 'blocklist', $lower = true ): array { |
| 311 |
$data = 'blocklist' === $type ? $this->blacklist : $this->whitelist; |
| 312 |
$data = trim( $data ); |
| 313 |
|
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if ( '' === $data ) { |
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return array(); |
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} |
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|
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$arr = preg_split( "/\r\n|\n|\r/", $data ); |
| 319 |
if ( ! is_array( $arr ) ) { |
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return array(); |
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} |
| 322 |
|
| 323 |
if ( $lower ) { |
| 324 |
$arr = array_map( |
| 325 |
function ( $value ) { |
| 326 |
return strtolower( trim( $value ) ); |
| 327 |
}, |
| 328 |
$arr |
| 329 |
); |
| 330 |
} else { |
| 331 |
$arr = array_map( 'trim', $arr ); |
| 332 |
} |
| 333 |
|
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return array_unique( $arr ); |
| 335 |
} |
| 336 |
|
| 337 |
/** |
| 338 |
* Define settings labels. |
| 339 |
* |
| 340 |
* @return array |
| 341 |
*/ |
| 342 |
public function labels(): array { |
| 343 |
return array( |
| 344 |
'enabled' => self::get_module_name(), |
| 345 |
'message' => esc_html__( 'Message', 'defender-security' ), |
| 346 |
'blacklist' => esc_html__( 'Blocklist', 'defender-security' ), |
| 347 |
'whitelist' => esc_html__( 'Allowlist', 'defender-security' ), |
| 348 |
'empty_headers' => esc_html__( 'Empty Headers', 'defender-security' ), |
| 349 |
); |
| 350 |
} |
| 351 |
|
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/** |
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* Get the access status of this UA. |
| 354 |
* |
| 355 |
* @param string $ua User Agent. |
| 356 |
* |
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* @return array |
| 358 |
*/ |
| 359 |
public function get_access_status( $ua ): array { |
| 360 |
$blocklist = str_replace( '#', '\#', $this->get_all_selected_blocklist_ua() ); |
| 361 |
$allowlist = str_replace( '#', '\#', $this->get_lockout_list( 'allowlist' ) ); |
| 362 |
|
| 363 |
// Escape regex special characters in each item before building the pattern. |
| 364 |
$blocklist_escaped = array_map( 'preg_quote', $blocklist, array_fill( 0, count( $blocklist ), '#' ) ); |
| 365 |
$allowlist_escaped = array_map( 'preg_quote', $allowlist, array_fill( 0, count( $allowlist ), '#' ) ); |
| 366 |
|
| 367 |
$blocklist_regex_pattern = '#' . implode( '|', $blocklist_escaped ) . '#i'; |
| 368 |
$allowlist_regex_pattern = '#' . implode( '|', $allowlist_escaped ) . '#i'; |
| 369 |
|
| 370 |
$blocklist_match = preg_match( $blocklist_regex_pattern, $ua ); |
| 371 |
$allowlist_match = preg_match( $allowlist_regex_pattern, $ua ); |
| 372 |
|
| 373 |
if ( 1 !== $blocklist_match && 1 !== $allowlist_match ) { |
| 374 |
return array( 'na' ); |
| 375 |
} |
| 376 |
|
| 377 |
$result = array(); |
| 378 |
|
| 379 |
// Check blocklist first - if it matches, add 'banned'. |
| 380 |
if ( 1 === $blocklist_match ) { |
| 381 |
$result[] = 'banned'; |
| 382 |
} |
| 383 |
|
| 384 |
// Check allowlist - if it matches, add 'allowlist'. |
| 385 |
if ( 1 === $allowlist_match ) { |
| 386 |
$result[] = 'allowlist'; |
| 387 |
} |
| 388 |
|
| 389 |
return $result; |
| 390 |
} |
| 391 |
|
| 392 |
/** |
| 393 |
* Checks if a user agent is present in a given list. |
| 394 |
* |
| 395 |
* @param string $ua The user agent to check. |
| 396 |
* @param string $collection The type of list to check against ('blocklist' or 'allowlist'). |
| 397 |
* |
| 398 |
* @return bool Returns true if the user agent is in the list, false otherwise. |
| 399 |
*/ |
| 400 |
public function is_ua_in_list( $ua, $collection ): bool { |
| 401 |
if ( 'allowlist' === $collection ) { |
| 402 |
$arr = str_replace( '#', '\#', $this->get_lockout_list( $collection ) ); |
| 403 |
} else { |
| 404 |
$arr = str_replace( '#', '\#', $this->get_all_selected_blocklist_ua() ); |
| 405 |
} |
| 406 |
|
| 407 |
// Escape regex special characters in each item before building the pattern. |
| 408 |
$arr_escaped = array_map( 'preg_quote', $arr, array_fill( 0, count( $arr ), '#' ) ); |
| 409 |
$list_regex_pattern = '#' . implode( '|', $arr_escaped ) . '#i'; |
| 410 |
|
| 411 |
return 1 === preg_match( $list_regex_pattern, $ua ); |
| 412 |
} |
| 413 |
|
| 414 |
/** |
| 415 |
* Remove User Agent from a list. |
| 416 |
* |
| 417 |
* @param string $ua The user agent to remove. |
| 418 |
* @param string $collection blocklist|allowlist. |
| 419 |
* |
| 420 |
* @return void |
| 421 |
*/ |
| 422 |
public function remove_from_list( $ua, $collection ) { |
| 423 |
if ( 'allowlist' === $collection ) { |
| 424 |
$arr = $this->get_lockout_list( $collection ); |
| 425 |
// Array can contain uppercase. |
| 426 |
$orig_arr = str_replace( '#', '\#', $this->get_lockout_list( $collection, false ) ); |
| 427 |
} else { |
| 428 |
$arr = $this->get_all_selected_blocklist_ua(); |
| 429 |
// Array can contain uppercase. |
| 430 |
$orig_arr = str_replace( '#', '\#', $this->get_all_selected_blocklist_ua( false ) ); |
| 431 |
} |
| 432 |
|
| 433 |
$list_regex_pattern = '#' . implode( '|', $arr ) . '#i'; |
| 434 |
$list_match = preg_match( $list_regex_pattern, $ua ); |
| 435 |
if ( false !== $list_match ) { |
| 436 |
if ( 'blocklist' === $collection ) { |
| 437 |
// Check in 'Blocklist Presets'. |
| 438 |
if ( $this->blocklist_presets ) { |
| 439 |
$key = array_search( $ua, $this->blocklist_preset_values, true ); |
| 440 |
if ( false !== $key ) { |
| 441 |
unset( $this->blocklist_preset_values[ $key ] ); |
| 442 |
$this->blocklist_preset_values = array_values( $this->blocklist_preset_values ); |
| 443 |
} |
| 444 |
} |
| 445 |
// Check in 'Script Presets' using Regex. |
| 446 |
if ( $this->script_presets ) { |
| 447 |
if ( false !== strpos( $ua, User_Agent_Service::GO_HTTP_CLIENT_KEY . '/' ) ) { |
| 448 |
$key_script_preset = User_Agent_Service::GO_HTTP_CLIENT_KEY; |
| 449 |
} elseif ( false !== strpos( $ua, User_Agent_Service::PYTHON_REQUESTS_KEY . '/' ) ) { |
| 450 |
$key_script_preset = User_Agent_Service::PYTHON_REQUESTS_KEY; |
| 451 |
} else { |
| 452 |
$key_script_preset = ''; |
| 453 |
} |
| 454 |
|
| 455 |
$key = array_search( $key_script_preset, $this->script_preset_values, true ); |
| 456 |
if ( false !== $key ) { |
| 457 |
unset( $this->script_preset_values[ $key ] ); |
| 458 |
$this->script_preset_values = array_values( $this->script_preset_values ); |
| 459 |
} |
| 460 |
} |
| 461 |
// Check 'Custom User Agents' case. |
| 462 |
$arr_blocklist = $this->get_lockout_list( 'blocklist', false ); |
| 463 |
if ( array() !== $arr_blocklist ) { |
| 464 |
$key = array_search( $ua, $arr_blocklist, true ); |
| 465 |
if ( false !== $key && isset( $arr_blocklist[ $key ] ) ) { |
| 466 |
unset( $arr_blocklist[ $key ] ); |
| 467 |
// Convert back to string. |
| 468 |
$this->blacklist = implode( PHP_EOL, $arr_blocklist ); |
| 469 |
} |
| 470 |
} |
| 471 |
} elseif ( 'allowlist' === $collection ) { |
| 472 |
$key = array_search( $ua, $arr, true ); |
| 473 |
if ( false !== $key && isset( $arr[ $key ] ) ) { |
| 474 |
unset( $arr[ $key ] ); |
| 475 |
// Convert back to string. |
| 476 |
$this->whitelist = implode( PHP_EOL, $arr ); |
| 477 |
} |
| 478 |
} |
| 479 |
|
| 480 |
$this->save(); |
| 481 |
} |
| 482 |
} |
| 483 |
|
| 484 |
/** |
| 485 |
* Add an UA to the list. |
| 486 |
* |
| 487 |
* @param string $ua User agent name. |
| 488 |
* @param string $collection blocklist|allowlist. |
| 489 |
* |
| 490 |
* @return void |
| 491 |
*/ |
| 492 |
public function add_to_list( $ua, $collection ) { |
| 493 |
if ( 'blocklist' === $collection ) { |
| 494 |
if ( User_Agent_Service::is_blocklist_presets( $ua ) ) { |
| 495 |
$this->blocklist_presets = true; |
| 496 |
$this->blocklist_preset_values[] = $ua; |
| 497 |
} elseif ( User_Agent_Service::is_script_presets( $ua ) ) { |
| 498 |
$this->script_presets = true; |
| 499 |
$this->script_preset_values[] = $ua; |
| 500 |
} else { |
| 501 |
$this->blacklist = $this->push_ua_to_list( $ua, $collection ); |
| 502 |
} |
| 503 |
} elseif ( 'allowlist' === $collection ) { |
| 504 |
$this->whitelist = $this->push_ua_to_list( $ua, $collection ); |
| 505 |
} |
| 506 |
|
| 507 |
$this->save(); |
| 508 |
} |
| 509 |
|
| 510 |
/** |
| 511 |
* Push the UA to either blocklist (only in 'Custom User Agents') or allowlist |
| 512 |
* |
| 513 |
* @param string $ua User agent name. |
| 514 |
* @param string $collection List type i.e. blocklist or allowlist. |
| 515 |
* |
| 516 |
* @return string List as string format with UA delimited with newline character. |
| 517 |
*/ |
| 518 |
private function push_ua_to_list( string $ua, string $collection ): string { |
| 519 |
$arr = $this->get_lockout_list( $collection, false ); |
| 520 |
$arr[] = trim( $ua ); |
| 521 |
$arr = array_unique( $arr ); |
| 522 |
|
| 523 |
return implode( PHP_EOL, $arr ); |
| 524 |
} |
| 525 |
|
| 526 |
/** |
| 527 |
* Filter the UAs, as we use a textarea to submit, so it can contain some un-valid UAs. |
| 528 |
*/ |
| 529 |
protected function after_validate(): void { |
| 530 |
$lists = array( |
| 531 |
'blacklist' => $this->get_lockout_list( 'blocklist' ), |
| 532 |
'whitelist' => $this->get_lockout_list( 'allowlist' ), |
| 533 |
); |
| 534 |
|
| 535 |
foreach ( $lists as $key => &$collection ) { |
| 536 |
// If UA collection is not valid, we should display an error message. We'll improve it by UA standard/pattern. |
| 537 |
$this->$key = implode( PHP_EOL, array_filter( $collection, 'strlen' ) ); |
| 538 |
} |
| 539 |
} |
| 540 |
|
| 541 |
/** |
| 542 |
* Get the module name. |
| 543 |
* |
| 544 |
* @return string |
| 545 |
*/ |
| 546 |
public static function get_module_name(): string { |
| 547 |
return esc_html__( 'User Agent Banning', 'defender-security' ); |
| 548 |
} |
| 549 |
|
| 550 |
/** |
| 551 |
* Get the module state. |
| 552 |
* |
| 553 |
* @param bool $flag Module state. |
| 554 |
* |
| 555 |
* @return string |
| 556 |
*/ |
| 557 |
public static function get_module_state( $flag ): string { |
| 558 |
return $flag ? esc_html__( 'active', 'defender-security' ) : esc_html__( 'inactive', 'defender-security' ); |
| 559 |
} |
| 560 |
|
| 561 |
/** |
| 562 |
* Get the list of all selected blocklisted UA values. |
| 563 |
* |
| 564 |
* @param bool $lower Whether to convert the list to lowercase. |
| 565 |
* |
| 566 |
* @return array |
| 567 |
*/ |
| 568 |
public function get_all_selected_blocklist_ua( $lower = true ): array { |
| 569 |
$blocklist_custom = $this->get_lockout_list( 'blocklist', $lower ); |
| 570 |
$blocklist_presets = $this->blocklist_presets ? $this->blocklist_preset_values : array(); |
| 571 |
$script_presets = $this->script_presets ? $this->script_preset_values : array(); |
| 572 |
|
| 573 |
return array_merge( $blocklist_custom, $blocklist_presets, $script_presets ); |
| 574 |
} |
| 575 |
|
| 576 |
/** |
| 577 |
* Return the module slug. |
| 578 |
* |
| 579 |
* @return string |
| 580 |
*/ |
| 581 |
public static function get_module_slug(): string { |
| 582 |
return 'ua-lockout'; |
| 583 |
} |
| 584 |
} |
| 585 |
|
