#8 Target filter implemented

This commit is contained in:
Stefan Kalscheuer 2017-06-04 21:20:40 +02:00
parent 0cf4548d45
commit 152a800a4a
6 changed files with 325 additions and 64 deletions

View File

@ -15,6 +15,9 @@ This plugin adds customizable blacklist to Statify to allow blocking of referer
#### Referer Blacklist ####
Add a list of domains (for simplicity only second-level, e.g. _example.com_ which blocks _everything.example.com_).
#### Target Blacklist ####
Add a list of target pages (e.g. _/test/page/_, _/?page_id=123_) that will be excluded from tracking.
#### IP Blacklist ####
Add a list of IP addresses or subnets (e.g. _192.0.2.123_, _198.51.100.0/24_, _2001:db8:a0b:12f0::/64_).
@ -74,6 +77,7 @@ Because of this, an IP blacklist can only be applied while processing the reques
### 1.4.0 / work in progress ###
* IP blacklist implemented (#7)
* Target page blacklist implemented (#8)
### 1.3.1 / 09.12.2016 ###
* Continue filtering if no filter applies (#6)

Binary file not shown.

Before

Width:  |  Height:  |  Size: 47 KiB

After

Width:  |  Height:  |  Size: 66 KiB

View File

@ -85,7 +85,7 @@ class StatifyBlacklist {
/* CronJob to clean up database */
if ( defined( 'DOING_CRON' ) && DOING_CRON ) {
if ( self::$_options['cron_referer'] == 1 ) {
if ( self::$_options['cron_referer'] == 1 || self::$_options['cron_target'] == 1 ) {
add_action( 'statify_cleanup', array( 'StatifyBlacklist_Admin', 'cleanup_database' ) );
}
}
@ -119,6 +119,10 @@ class StatifyBlacklist {
'cron_referer' => 0,
'referer' => array(),
'referer_regexp' => 0,
'active_target' => 0,
'cron_target' => 0,
'target' => array(),
'target_regexp' => 0,
'active_ip' => 0,
'ip' => array(),
'version' => self::VERSION_MAIN
@ -131,7 +135,7 @@ class StatifyBlacklist {
* @return TRUE if referer matches blacklist.
*
* @since 1.0.0
* @changed 1.4.0
* @since 1.4.0 Target and IP blacklist
*/
public static function apply_blacklist_filter() {
/* Referer blacklist */
@ -163,6 +167,33 @@ class StatifyBlacklist {
}
}
/* Target blacklist (since 1.4.0) */
if ( isset( self::$_options['active_target'] ) && self::$_options['active_target'] != 0 ) {
/* Regular Expression filtering since 1.3.0 */
if ( isset( self::$_options['target_regexp'] ) && self::$_options['target_regexp'] > 0 ) {
/* Get full referer string */
$target = ( isset( $_SERVER['REQUEST_URI'] ) ? wp_unslash( $_SERVER['REQUEST_URI'] ) : '/' );
/* Merge given regular expressions into one */
$regexp = '/' . implode( "|", array_keys( self::$_options['target'] ) ) . '/';
if ( self::$_options['target_regexp'] == 2 ) {
$regexp .= 'i';
}
/* Check blacklist (return NULL to continue filtering) */
return ( preg_match( $regexp, $target ) === 1 ) ? true : null;
} else {
/* Extract target page */
$target = ( isset( $_SERVER['REQUEST_URI'] ) ? wp_unslash( $_SERVER['REQUEST_URI'] ) : '/' );
/* Get blacklist */
$blacklist = self::$_options['target'];
/* Check blacklist */
if ( isset( $blacklist[ $target ] ) ) {
return true;
}
}
}
/* IP blacklist (since 1.4.0) */
if ( isset ( self::$_options['active_ip'] ) && self::$_options['active_ip'] != 0 ) {
if ( ( $ip = self::getIP() ) !== false ) {

View File

@ -131,8 +131,16 @@ class StatifyBlacklist_Admin extends StatifyBlacklist {
die( __( 'Are you sure you want to do this?' ) );
}
global $wpdb;
if ( defined( 'DOING_CRON' ) && DOING_CRON ) {
$cleanRef = ( self::$_options['cron_referer'] == 1 );
$cleanTrg = ( self::$_options['cron_target'] == 1 );
} else {
$cleanRef = true;
$cleanTrg = true;
}
if ( $cleanRef ) {
if ( isset( self::$_options['referer_regexp'] ) && self::$_options['referer_regexp'] > 0 ) {
/* Merge given regular expressions into one */
$refererRegexp = implode( "|", array_keys( self::$_options['referer'] ) );
@ -143,14 +151,37 @@ class StatifyBlacklist_Admin extends StatifyBlacklist {
/* Build filter regexp */
$refererRegexp = str_replace( '.', '\.', implode( '|', array_flip( $referer ) ) );
}
}
if ( $cleanTrg ) {
if ( isset( self::$_options['target_regexp'] ) && self::$_options['target_regexp'] > 0 ) {
/* Merge given regular expressions into one */
$targetRegexp = implode( "|", array_keys( self::$_options['target'] ) );
} else {
/* Build filter regexp */
$targetRegexp = str_replace( '.', '\.', implode( '|', array_flip( self::$_options['target'] ) ) );
}
}
if ( ! empty( $refererRegexp ) || ! empty( $targetRegexp ) ) {
global $wpdb;
if ( ! empty( $refererRegexp ) ) {
/* Execute filter on database */
if ( ! empty( $refererRegexp ) ) {
$wpdb->query(
$wpdb->prepare( "DELETE FROM `$wpdb->statify` WHERE "
. ( ( self::$_options['referer_regexp'] == 1 ) ? " BINARY " : "" )
. "referrer REGEXP %s", $refererRegexp )
);
}
if ( ! empty( $targetRegexp ) ) {
$wpdb->query(
$wpdb->prepare( "DELETE FROM `$wpdb->statify` WHERE "
. ( ( self::$_options['target_regexp'] == 1 ) ? " BINARY " : "" )
. "target REGEXP %s", $targetRegexp )
);
}
/* Optimize DB */
$wpdb->query( "OPTIMIZE TABLE `$wpdb->statify`" );
@ -195,10 +226,10 @@ class StatifyBlacklist_Admin extends StatifyBlacklist {
*/
private static function sanitizeIPs( $ips ) {
return array_filter( $ips, function ( $ip ) {
return preg_match('/^((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])'.
'(\/([0-9]|[1-2][0-9]|3[0-2]))?$/', $ip) ||
preg_match('/^(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))'.
'(\/([0-9]|[1-9][0-9]|1[0-1][0-9]|12[0-8]))?$/', $ip);
return preg_match( '/^((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])' .
'(\/([0-9]|[1-2][0-9]|3[0-2]))?$/', $ip ) ||
preg_match( '/^(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))' .
'(\/([0-9]|[1-9][0-9]|1[0-1][0-9]|12[0-8]))?$/', $ip );
} );
}
}

View File

@ -132,7 +132,7 @@ class StatifyBlacklistTest extends PHPUnit_Framework_TestCase {
$optionsUpdated = get_option( 'statify-blacklist' );
/* Verify size against default options (no junk left) */
$this->assertEquals( 7, sizeof( $optionsUpdated ) );
$this->assertEquals( 11, sizeof( $optionsUpdated ) );
/* Verify that original attributes are unchanged */
$this->assertEquals( $options13['active_referer'], $optionsUpdated['active_referer'] );
@ -294,6 +294,114 @@ class StatifyBlacklistTest extends PHPUnit_Framework_TestCase {
$_SERVER['HTTP_X_REAL_IP'] = '2001:db8:a0b:12f0:0::1';
$this->assertTrue( StatifyBlacklist::apply_blacklist_filter() );
}
/**
* Test simple target filter.
*/
public function testTargetFilter() {
/* Prepare Options: 2 blacklisted domains, disabled */
StatifyBlacklist::$_options = array(
'active_referer' => 0,
'cron_referer' => 0,
'referer' => array(
'example.com' => 0,
'example.net' => 1
),
'referer_regexp' => 0,
'active_target' => 0,
'cron_target' => 0,
'target' => array(
'/excluded/page/' => 0,
'/?page_id=3' => 1
),
'target_regexp' => 0,
'active_ip' => 0,
'ip' => array(),
'version' => StatifyBlacklist::VERSION_MAIN
);
/* No multisite */
StatifyBlacklist::$multisite = false;
/* Empty target */
unset( $_SERVER['REQUEST_URI'] );
$this->assertNull( StatifyBlacklist::apply_blacklist_filter() );
/* Non-blacklisted targets */
$_SERVER['REQUEST_URI'] = '';
$this->assertNull( StatifyBlacklist::apply_blacklist_filter() );
$_SERVER['REQUEST_URI'] = '/';
$this->assertNull( StatifyBlacklist::apply_blacklist_filter() );
$_SERVER['REQUEST_URI'] = '/?page_id=1';
$this->assertNull( StatifyBlacklist::apply_blacklist_filter() );
/* Blacklisted referer */
$_SERVER['REQUEST_URI'] = '/excluded/page/';
$this->assertNull( StatifyBlacklist::apply_blacklist_filter() );
$_SERVER['REQUEST_URI'] = '/?page_id=3';
$this->assertNull( StatifyBlacklist::apply_blacklist_filter() );
/* Activate filter and run tests again */
StatifyBlacklist::$_options['active_target'] = 1;
unset( $_SERVER['REQUEST_URI'] );
$this->assertNull( StatifyBlacklist::apply_blacklist_filter() );
$_SERVER['REQUEST_URI'] = '';
$this->assertNull( StatifyBlacklist::apply_blacklist_filter() );
$_SERVER['REQUEST_URI'] = '/';
$this->assertNull( StatifyBlacklist::apply_blacklist_filter() );
$_SERVER['REQUEST_URI'] = '/?page_id=1';
$this->assertNull( StatifyBlacklist::apply_blacklist_filter() );
$_SERVER['REQUEST_URI'] = '/excluded/page/';
$this->assertTrue( StatifyBlacklist::apply_blacklist_filter() );
$_SERVER['REQUEST_URI'] = '/?page_id=3';
$this->assertTrue( StatifyBlacklist::apply_blacklist_filter() );
$_SERVER['REQUEST_URI'] = '/?page_id=3';
$this->assertTrue( StatifyBlacklist::apply_blacklist_filter() );
}
/**
* Test target filter using regular expressions.
*/
public function testTargetRegexFilter() {
/* Prepare Options: 2 regular expressions */
StatifyBlacklist::$_options = array(
'active_referer' => 1,
'cron_referer' => 0,
'referer' => array(
'example.[a-z]+' => 0,
'test' => 1
),
'referer_regexp' => 1,
'version' => 1.3
);
/* No multisite */
StatifyBlacklist::$multisite = false;
/* No referer */
unset( $_SERVER['HTTP_REFERER'] );
$this->assertNull( StatifyBlacklist::apply_blacklist_filter() );
/* Non-blacklisted referer */
$_SERVER['HTTP_REFERER'] = 'http://not.evil';
$this->assertNull( StatifyBlacklist::apply_blacklist_filter() );
/* Blacklisted referer */
$_SERVER['HTTP_REFERER'] = 'http://example.com';
$this->assertTrue( StatifyBlacklist::apply_blacklist_filter() );
/* Blacklisted referer with path */
$_SERVER['HTTP_REFERER'] = 'http://foobar.net/test/me';
$this->assertTrue( StatifyBlacklist::apply_blacklist_filter() );
/* Matching both */
$_SERVER['HTTP_REFERER'] = 'http://example.net/test/me';
$this->assertTrue( StatifyBlacklist::apply_blacklist_filter() );
/* Mathinc with wrong case */
$_SERVER['HTTP_REFERER'] = 'http://eXaMpLe.NeT/tEsT/mE';
$this->assertNull( StatifyBlacklist::apply_blacklist_filter() );
/* Set RegExp filter to case insensitive */
StatifyBlacklist::$_options['referer_regexp'] = 2;
$this->assertTrue( StatifyBlacklist::apply_blacklist_filter() );
}
}
/**
@ -346,3 +454,7 @@ function update_option( $option, $value, $autoload = null ) {
global $mock_options;
$mock_options[ $option ] = $value;
}
function wp_unslash ( $value ) {
return is_string( $value ) ? stripslashes( $value ) : $value;
}

View File

@ -24,6 +24,13 @@ if ( ! empty( $_POST['statifyblacklist'] ) ) {
$referer = explode( "\r\n", $_POST['statifyblacklist']['referer'] );
}
/* Extract target array */
if ( empty( trim( $_POST['statifyblacklist']['target'] ) ) ) {
$target = array();
} else {
$target = explode( "\r\n", str_replace( '\\\\', '\\', $_POST['statifyblacklist']['target'] ) );
}
/* Extract IP array */
if ( empty( trim( $_POST['statifyblacklist']['ip'] ) ) ) {
$ip = array();
@ -38,6 +45,10 @@ if ( ! empty( $_POST['statifyblacklist'] ) ) {
'cron_referer' => (int) @$_POST['statifyblacklist']['cron_referer'],
'referer' => array_flip( $referer ),
'referer_regexp' => (int) @$_POST['statifyblacklist']['referer_regexp'],
'active_target' => (int) @$_POST['statifyblacklist']['active_target'],
'cron_target' => (int) @$_POST['statifyblacklist']['cron_target'],
'target' => array_flip( $target ),
'target_regexp' => (int) @$_POST['statifyblacklist']['target_regexp'],
'active_ip' => (int) @$_POST['statifyblacklist']['active_ip'],
'ip' => $ip,
'version' => StatifyBlacklist::VERSION_MAIN
@ -52,7 +63,7 @@ if ( ! empty( $_POST['statifyblacklist'] ) ) {
$statifyBlacklistPostWarning = sprintf( __( 'Some IPs are invalid : %s', 'statify-blacklist' ), implode( ', ', $statifyBlacklistUpdateResult['ip'] ) );
}
} else {
$statifyBlacklistPostSuccess = __('Settings updated successfully.', 'statify-blacklist');
$statifyBlacklistPostSuccess = __( 'Settings updated successfully.', 'statify-blacklist' );
}
}
}
@ -63,19 +74,19 @@ if ( ! empty( $_POST['statifyblacklist'] ) ) {
<?php
if ( is_plugin_inactive( 'statify/statify.php' ) ) {
print '<div class="notice notice-warning"><p>';
esc_html( 'Statify plugin is not active.');
esc_html( 'Statify plugin is not active.' );
print '</p></div>';
}
if ( isset( $statifyBlacklistPostWarning ) ) {
print '<div class="notice notice-warning"><p>' .
esc_html( $statifyBlacklistPostWarning );
print '<br/>';
esc_html_e('Settings have not been saved yet.', 'statify-blacklist');
esc_html_e( 'Settings have not been saved yet.', 'statify-blacklist' );
print '</p></div>';
}
if ( isset( $statifyBlacklistPostSuccess ) ) {
print '<div class="notice notice-success"><p>'.
esc_html( $statifyBlacklistPostSuccess ).
print '<div class="notice notice-success"><p>' .
esc_html( $statifyBlacklistPostSuccess ) .
'</p></div>';
}
?>
@ -85,7 +96,8 @@ if ( ! empty( $_POST['statifyblacklist'] ) ) {
<ul style="list-style: none;">
<li>
<label for="statify-blacklist_active_referer">
<input type="checkbox" name="statifyblacklist[active_referer]" id="statifyblacklist_active_referer"
<input type="checkbox" name="statifyblacklist[active_referer]"
id="statifyblacklist_active_referer"
value="1" <?php checked( StatifyBlacklist::$_options['active_referer'], 1 ); ?> />
<?php esc_html_e( 'Activate live fiter', 'statify-blacklist' ); ?>
</label>
@ -95,13 +107,15 @@ if ( ! empty( $_POST['statifyblacklist'] ) ) {
<input type="checkbox" name="statifyblacklist[cron_referer]" id="statifyblacklist_cron_referer"
value="1" <?php checked( StatifyBlacklist::$_options['cron_referer'], 1 ); ?> />
<?php esc_html_e( 'CronJob execution', 'statify-blacklist' ); ?>
<small>(<?php esc_html_e( 'Clean database periodically in background', 'statify-blacklist' ); ?>)</small>
<small>(<?php esc_html_e( 'Clean database periodically in background', 'statify-blacklist' ); ?>
)
</small>
</label>
</li>
<li>
<label for="statify-blacklist_referer_regexp">
<?php esc_html_e( 'Use regular expressions', 'statify-blacklist' ); ?>:
<br />
<br/>
<select name="statifyblacklist[referer_regexp]" id="statifyblacklist_referer_regexp">
<option value="0" <?php selected( StatifyBlacklist::$_options['referer_regexp'], 0 ); ?>>
<?php esc_html_e( 'Disabled', 'statify-blacklist' ); ?>
@ -113,7 +127,10 @@ if ( ! empty( $_POST['statifyblacklist'] ) ) {
<?php esc_html_e( 'Case-insensitive', 'statify-blacklist' ); ?>
</option>
</select>
<small>(<?php esc_html_e( 'Performance slower than standard domain filter. Recommended for cron or manual execition only.', 'statify-blacklist' ); ?>)</small>
<small>
(<?php esc_html_e( 'Performance slower than standard filter. Recommended for cron or manual execition only.', 'statify-blacklist' ); ?>
)
</small>
</label>
</li>
<li>
@ -126,7 +143,7 @@ if ( ! empty( $_POST['statifyblacklist'] ) ) {
print esc_html( implode( "\r\n", array_keys( StatifyBlacklist::$_options['referer'] ) ) );
}
?></textarea>
<br />
<br/>
<small>
(<?php esc_html_e( 'Add one domain (without subdomains) each line, e.g. example.com', 'statify-blacklist' ); ?>
)
@ -136,6 +153,69 @@ if ( ! empty( $_POST['statifyblacklist'] ) ) {
</ul>
</fieldset>
<fieldset>
<h2><?php esc_html_e( 'Target blacklist', 'statify-blacklist' ); ?></h2>
<ul style="list-style: none;">
<li>
<label for="statify-blacklist_active_target">
<input type="checkbox" name="statifyblacklist[active_target]"
id="statifyblacklist_active_target"
value="1" <?php checked( StatifyBlacklist::$_options['active_target'], 1 ); ?> />
<?php esc_html_e( 'Activate live fiter', 'statify-blacklist' ); ?>
</label>
</li>
<li>
<label for="statify-blacklist_cron_target">
<input type="checkbox" name="statifyblacklist[cron_target]" id="statifyblacklist_cron_target"
value="1" <?php checked( StatifyBlacklist::$_options['cron_target'], 1 ); ?> />
<?php esc_html_e( 'CronJob execution', 'statify-blacklist' ); ?>
<small>(<?php esc_html_e( 'Clean database periodically in background', 'statify-blacklist' ); ?>
)
</small>
</label>
</li>
<li>
<label for="statify-blacklist_target_regexp">
<?php esc_html_e( 'Use regular expressions', 'statify-blacklist' ); ?>:
<br/>
<select name="statifyblacklist[target_regexp]" id="statifyblacklist_target_regexp">
<option value="0" <?php selected( StatifyBlacklist::$_options['target_regexp'], 0 ); ?>>
<?php esc_html_e( 'Disabled', 'statify-blacklist' ); ?>
</option>
<option value="1" <?php selected( StatifyBlacklist::$_options['target_regexp'], 1 ); ?>>
<?php esc_html_e( 'Case-sensitive', 'statify-blacklist' ); ?>
</option>
<option value="2" <?php selected( StatifyBlacklist::$_options['target_regexp'], 2 ); ?>>
<?php esc_html_e( 'Case-insensitive', 'statify-blacklist' ); ?>
</option>
</select>
<small>
(<?php esc_html_e( 'Performance slower than standard filter. Recommended for cron or manual execition only.', 'statify-blacklist' ); ?>
)
</small>
</label>
</li>
<li>
<label for="statify-blacklist_target">
<?php esc_html_e( 'Target blacklist:', 'statify-blacklist' ); ?><br/>
<textarea cols="40" rows="5" name="statifyblacklist[target]" id="statify-blacklist_target"><?php
if ( isset( $statifyBlacklistUpdateResult['target'] ) ) {
print esc_html( implode( "\r\n", array_keys( $statifyBlacklistUpdateResult['target'] ) ) );
} else {
print esc_html( implode( "\r\n", array_keys( StatifyBlacklist::$_options['target'] ) ) );
}
?></textarea>
<br/>
<small>
(<?php esc_html_e( 'Add one target URL each line, e.g.', 'statify-blacklist' );
print ' /, /test/page/, /?page_id=123' ?>
)
</small>
</label>
</li>
</ul>
</fieldset>
<fieldset>
<h2><?php esc_html_e( 'IP blacklist', 'statify-blacklist' ); ?></h2>
<ul style="list-style: none;">
@ -147,7 +227,10 @@ if ( ! empty( $_POST['statifyblacklist'] ) ) {
</label>
</li>
<li>
<small>(<?php esc_html_e( 'Cron execution is not possible for IP filter, because IP addresses are not stored.', 'statify-blacklist' ); ?>)</small>
<small>
(<?php esc_html_e( 'Cron execution is not possible for IP filter, because IP addresses are not stored.', 'statify-blacklist' ); ?>
)
</small>
</li>
<li>
<label for="statify-blacklist_ip">
@ -174,12 +257,12 @@ if ( ! empty( $_POST['statifyblacklist'] ) ) {
<p class="submit">
<input class="button-primary" type="submit" name="submit" value="<?php _e( 'Save Changes' ) ?>">
<hr />
<hr/>
<input class="button-secondary" type="submit" name="cleanUp"
value="<?php esc_html_e( 'CleanUp Database', 'statify-blacklist' ) ?>"
onclick="return confirm('Do you really want to apply filters to database? This cannot be undone.');">
<br />
<small><?php esc_html_e( 'Applies referer filter (even if disabled) to data stored in database. This cannot be undone!', 'statify-blacklist' ); ?></small>
<br/>
<small><?php esc_html_e( 'Applies referer and target filter (even if disabled) to data stored in database.', 'statify-blacklist' ); ?> <b><?php esc_html_e( 'This cannot be undone!', 'statify-blacklist' ); ?></b></small>
</p>
</form>
</div>