<?php

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/**

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* The frontend GUI class.

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*

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* Provides front-end and admin-bar UI helpers for LiteSpeed Cache.

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*

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* @package LiteSpeed

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* @since 1.3

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*/

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namespace LiteSpeed;

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defined( 'WPINC' ) || exit();

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/**

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* GUI helpers for LiteSpeed Cache.

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*/

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class GUI extends Base {

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const LOG_TAG = '[GUI]';

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/**

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* Counter for temporary HTML wrappers.

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*

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* @var int Counter for temporary HTML wrappers to remove from the buffer.

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*/

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private static $_clean_counter = 0;

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/**

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* Promo display flag.

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*

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* @var bool Internal flag used by promo templates to decide whether to display.

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*/

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private $_promo_true = false;

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/**

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* Promo list configuration.

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*

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* Format: [ file_tag => [ days, litespeed_only ], ... ]

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*

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* @var array<string, array{0:int,1:bool}>

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*/

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private $_promo_list = [

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'new_version' => [ 7, false ],

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'score' => [ 14, false ],

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// 'slack' => [ 3, false ],

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];

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/** Path to guest JavaScript file. */

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const LIB_GUEST_JS = 'assets/js/guest.min.js';

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/** Path to guest document.referrer JavaScript file. */

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const LIB_GUEST_DOCREF_JS = 'assets/js/guest.docref.min.js';

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/** Path to guest vary endpoint. */

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const PHP_GUEST = 'guest.vary.php';

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/** Dismiss type: WHM. */

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const TYPE_DISMISS_WHM = 'whm';

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/** Dismiss type: ExpiresDefault. */

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const TYPE_DISMISS_EXPIRESDEFAULT = 'ExpiresDefault';

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/** Dismiss type: Promo. */

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const TYPE_DISMISS_PROMO = 'promo';

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/** Dismiss type: PIN. */

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const TYPE_DISMISS_PIN = 'pin';

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/** WHM message option name. */

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const WHM_MSG = 'lscwp_whm_install';

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/** WHM message option value. */

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const WHM_MSG_VAL = 'whm_install';

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/**

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* Summary options cache.

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*

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* @var array<string,mixed> Summary/options cache.

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*/

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protected $_summary;

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/**

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* Instance.

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*

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* @since 1.3

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*/

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public function __construct() {

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$this->_summary = self::get_summary();

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}

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/**

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* Frontend init.

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*

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* @since 3.0

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*/

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public function init() {

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self::debug2( 'init' );

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if ( is_admin_bar_showing() && current_user_can( 'manage_options' ) ) {

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add_action( 'wp_enqueue_scripts', [ $this, 'frontend_enqueue_style' ] );

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add_action( 'admin_bar_menu', [ $this, 'frontend_shortcut' ], 95 );

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}

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/**

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* Turn on instant click.

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*

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* @since 1.8.2

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*/

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if ( $this->conf( self::O_UTIL_INSTANT_CLICK ) ) {

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add_action( 'wp_enqueue_scripts', [ $this, 'frontend_enqueue_style_public' ] );

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}

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// NOTE: this needs to be before optimizer to avoid wrapper being removed.

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add_filter( 'litespeed_buffer_finalize', [ $this, 'finalize' ], 8 );

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}

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/**

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* Print a loading message when redirecting CCSS/UCSS page to avoid blank page confusion.

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*

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* @param int $counter Files left in queue.

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* @param string $type Queue type label.

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* @return void

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*/

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public static function print_loading( $counter, $type ) {

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echo '<div style="font-size:25px;text-align:center;padding-top:150px;width:100%;position:absolute;">';

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echo "<img width='35' src='" . esc_url( LSWCP_PLUGIN_URL . 'assets/img/Litespeed.icon.svg' ) . "' alt='' /> ";

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printf(

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/* translators: 1: number, 2: text */

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esc_html__( '%1$s %2$s files left in queue', 'litespeed-cache' ),

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esc_html( number_format_i18n( $counter ) ),

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esc_html( $type )

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);

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echo '<p><a href="' . esc_url( admin_url( 'admin.php?page=litespeed-page_optm' ) ) . '">' . esc_html__( 'Cancel', 'litespeed-cache' ) . '</a></p>';

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echo '</div>';

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}

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/**

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* Display the tab list.

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*

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* @since 7.3

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*

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* @param array<string,string> $tabs Key => Label pairs.

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* @return void

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*/

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public static function display_tab_list( $tabs ) {

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$i = 1;

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foreach ( $tabs as $k => $val ) {

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$accesskey = $i <= 9 ? $i : '';

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printf(

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'<a class="litespeed-tab nav-tab" href="#%1$s" data-litespeed-tab="%1$s" litespeed-accesskey="%2$s">%3$s</a>',

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esc_attr( $k ),

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esc_attr( $accesskey ),

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esc_html( $val )

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);

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++$i;

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}

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}

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/**

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* Render a pie chart SVG string.

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*

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* @since 1.6.6

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*

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* @param int $percent Percentage 0-100.

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* @param int $width Width/height in pixels.

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* @param bool $finished_tick Show a tick when 100%.

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* @param bool $without_percentage Hide the % label.

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* @param string|bool $append_cls Extra CSS class.

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* @return string SVG markup.

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*/

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public static function pie( $percent, $width = 50, $finished_tick = false, $without_percentage = false, $append_cls = false ) {

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$label = $without_percentage ? $percent : ( $percent . '%' );

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$percentage = '<text x="50%" y="50%">' . esc_html( $label ) . '</text>';

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if ( 100 === $percent && $finished_tick ) {

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$percentage = '<text x="50%" y="50%" class="litespeed-pie-done">✓</text>';

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}

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$svg = sprintf(

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"<svg class='litespeed-pie %1\$s' viewbox='0 0 33.83098862 33.83098862' width='%2\$d' height='%2\$d' xmlns='http://www.w3.org/2000/svg'>

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<circle class='litespeed-pie_bg' cx='16.91549431' cy='16.91549431' r='15.91549431' />

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<circle class='litespeed-pie_circle' cx='16.91549431' cy='16.91549431' r='15.91549431' stroke-dasharray='%3\$d,100' />

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<g class='litespeed-pie_info'>%4\$s</g>

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</svg>",

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esc_attr( $append_cls ),

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$width,

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$percent,

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$percentage

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);

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return $svg;

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}

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/**

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* Allowed SVG tags/attributes for kses.

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*

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* @since 7.3

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*

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* @return array<string,array<string,bool>> Allowed tags/attributes.

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*/

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public static function allowed_svg_tags() {

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return [

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'svg' => [

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'width' => true,

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'height' => true,

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'viewbox' => true, // Note: SVG standard uses 'viewBox', but wp_kses normalizes to lowercase.

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'xmlns' => true,

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'class' => true,

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'id' => true,

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],

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'circle' => [

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'cx' => true,

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'cy' => true,

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'r' => true,

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'fill' => true,

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'stroke' => true,

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'class' => true,

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'stroke-width' => true,

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'stroke-dasharray' => true,

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],

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'path' => [

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'd' => true,

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'fill' => true,

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'stroke' => true,

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],

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'text' => [

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'x' => true,

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'y' => true,

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'dx' => true,

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'dy' => true,

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'font-size' => true,

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'font-family' => true,

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'font-weight' => true,

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'fill' => true,

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'stroke' => true,

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'stroke-width' => true,

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'text-anchor' => true,

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'class' => true,

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'id' => true,

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],

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'g' => [

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'transform' => true,

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'fill' => true,

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'stroke' => true,

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'stroke-width' => true,

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'class' => true,

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'id' => true,

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],

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'button' => [

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'type' => true,

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'data-balloon-break' => true,

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'data-balloon-pos' => true,

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'aria-label' => true,

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'class' => true,

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],

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];

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}

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/**

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* Display a tiny pie with a tooltip.

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*

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* @since 3.0

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*

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* @param int $percent Percentage 0-100.

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* @param int $width Width/height in pixels.

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* @param string $tooltip Tooltip text.

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* @param string $tooltip_pos Tooltip position (e.g., 'up').

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* @param string|bool $append_cls Extra CSS class.

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* @return string HTML/SVG.

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*/

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public static function pie_tiny( $percent, $width = 50, $tooltip = '', $tooltip_pos = 'up', $append_cls = false ) {

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// formula C = 2πR.

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$dasharray = 2 * 3.1416 * 9 * ( $percent / 100 );

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return sprintf(

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"

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<button type='button' data-balloon-break data-balloon-pos='%1\$s' aria-label='%2\$s' class='litespeed-btn-pie'>

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<svg class='litespeed-pie litespeed-pie-tiny %3\$s' viewbox='0 0 30 30' width='%4\$d' height='%4\$d' xmlns='http://www.w3.org/2000/svg'>

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<circle class='litespeed-pie_bg' cx='15' cy='15' r='9' />

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<circle class='litespeed-pie_circle' cx='15' cy='15' r='9' stroke-dasharray='%5\$s,100' />

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<g class='litespeed-pie_info'><text x='50%%' y='50%%'>i</text></g>

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</svg>

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</button>

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",

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esc_attr( $tooltip_pos ),

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esc_attr( $tooltip ),

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esc_attr( $append_cls ),

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$width,

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esc_attr( $dasharray )

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);

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}

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/**

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* Get CSS class name for PageSpeed score.

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*

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* Scale:

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* 90-100 (fast)

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* 50-89 (average)

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* 0-49 (slow)

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*

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* @since 2.9

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* @access public

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*

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* @param int $score Score 0-100.

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* @return string Class name: success|warning|danger.

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*/

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public function get_cls_of_pagescore( $score ) {

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if ( $score >= 90 ) {

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return 'success';

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}

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if ( $score >= 50 ) {

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return 'warning';

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}

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return 'danger';

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}

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/**

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* Handle dismiss actions for banners and notices.

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*

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* @since 1.0

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* @access public

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* @return void

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*/

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public static function dismiss() {

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$_instance = self::cls();

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switch ( Router::verify_type() ) {

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case self::TYPE_DISMISS_WHM:

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self::dismiss_whm();

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break;

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case self::TYPE_DISMISS_EXPIRESDEFAULT:

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self::update_option( Admin_Display::DB_DISMISS_MSG, Admin_Display::RULECONFLICT_DISMISSED );

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break;

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case self::TYPE_DISMISS_PIN:

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Admin_Display::dismiss_pin();

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break;

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case self::TYPE_DISMISS_PROMO:

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if ( empty( $_GET['promo_tag'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended

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break;

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}

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$promo_tag = sanitize_key( wp_unslash( $_GET['promo_tag'] ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended

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if ( empty( $_instance->_promo_list[ $promo_tag ] ) ) {

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break;

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}

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defined( 'LSCWP_LOG' ) && self::debug( 'Dismiss promo ' . $promo_tag );

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// Forever dismiss.

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if ( ! empty( $_GET['done'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended

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$_instance->_summary[ $promo_tag ] = 'done';

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} elseif ( ! empty( $_GET['later'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended

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// Delay the banner to half year later.

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$_instance->_summary[ $promo_tag ] = time() + ( 86400 * 180 );

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} else {

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// Update welcome banner to 30 days after.

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$_instance->_summary[ $promo_tag ] = time() + ( 86400 * 30 );

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}

[362] Fix | Delete

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self::save_summary();

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[365] Fix | Delete

break;

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default:

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break;

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}

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if ( Router::is_ajax() ) {

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// All dismiss actions are considered as ajax call, so just exit.

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exit( wp_json_encode( [ 'success' => 1 ] ) );

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}

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// Plain click link, redirect to referral url.

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Admin::redirect();

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}

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/**

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* Check if has rule conflict notice.

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*

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* @since 1.1.5

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* @access public

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*

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* @return bool True if message should be shown.

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*/

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public static function has_msg_ruleconflict() {

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$db_dismiss_msg = self::get_option( Admin_Display::DB_DISMISS_MSG );

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if ( ! $db_dismiss_msg ) {

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self::update_option( Admin_Display::DB_DISMISS_MSG, -1 );

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}

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return Admin_Display::RULECONFLICT_ON === $db_dismiss_msg;

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}

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/**

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* Check if has WHM notice.

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*

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* @since 1.1.1

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* @access public

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*

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* @return bool True if message should be shown.

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*/

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public static function has_whm_msg() {

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$val = self::get_option( self::WHM_MSG );

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if ( ! $val ) {

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self::dismiss_whm();

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return false;

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}

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return self::WHM_MSG_VAL === $val;

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}

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/**

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* Delete WHM message tag.

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*

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* @since 1.1.1

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* @access public

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* @return void

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*/

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public static function dismiss_whm() {

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self::update_option( self::WHM_MSG, -1 );

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}

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/**

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* Whether current request is a LiteSpeed admin page.

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*

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* @since 2.9

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*

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* @return bool True if LiteSpeed page.

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*/

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private function _is_litespeed_page() {

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if (

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! empty( $_GET['page'] ) && // phpcs:ignore WordPress.Security.NonceVerification.Recommended

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in_array(

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(string) $_GET['page'], // phpcs:ignore WordPress.Security.NonceVerification.Recommended

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[

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'litespeed-settings',

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'litespeed-dash',

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Admin::PAGE_EDIT_HTACCESS,

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'litespeed-optimization',

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'litespeed-crawler',

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'litespeed-import',

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'litespeed-report',

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],

[445] Fix | Delete

true

[446] Fix | Delete

)

[447] Fix | Delete

) {

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return true;

[449] Fix | Delete

}

[450] Fix | Delete

[451] Fix | Delete

return false;

[452] Fix | Delete

}

[453] Fix | Delete

[454] Fix | Delete

/**

[455] Fix | Delete

* Display promo banner (or check-only mode to know which promo would display).

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*

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* @since 2.1

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* @access public

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*

[460] Fix | Delete

* @param bool $check_only If true, only return the promo tag that would be shown.

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* @return false|string False if none, or the promo tag string.

[462] Fix | Delete

*/

[463] Fix | Delete

public function show_promo( $check_only = false ) {

[464] Fix | Delete

$is_litespeed_page = $this->_is_litespeed_page();

[465] Fix | Delete

[466] Fix | Delete

// Bypass showing info banner if disabled all in debug.

[467] Fix | Delete

if ( defined( 'LITESPEED_DISABLE_ALL' ) && LITESPEED_DISABLE_ALL ) {

[468] Fix | Delete

return false;

[469] Fix | Delete

}

[470] Fix | Delete

[471] Fix | Delete

if ( file_exists( ABSPATH . '.litespeed_no_banner' ) ) {

[472] Fix | Delete

defined( 'LSCWP_LOG' ) && self::debug( 'Bypass banners due to silence file' );

[473] Fix | Delete

return false;

[474] Fix | Delete

}

[475] Fix | Delete

[476] Fix | Delete

foreach ( $this->_promo_list as $promo_tag => $v ) {

[477] Fix | Delete

list( $delay_days, $litespeed_page_only ) = $v;

[478] Fix | Delete

[479] Fix | Delete

if ( $litespeed_page_only && ! $is_litespeed_page ) {

[480] Fix | Delete

continue;

[481] Fix | Delete

}

[482] Fix | Delete

[483] Fix | Delete

// First time check.

[484] Fix | Delete

if ( empty( $this->_summary[ $promo_tag ] ) ) {

[485] Fix | Delete

$this->_summary[ $promo_tag ] = time() + 86400 * $delay_days;

[486] Fix | Delete

self::save_summary();

[487] Fix | Delete

continue;

[488] Fix | Delete

}

[489] Fix | Delete

[490] Fix | Delete

$promo_timestamp = $this->_summary[ $promo_tag ];

[491] Fix | Delete

[492] Fix | Delete

// Was ticked as done.

[493] Fix | Delete

if ( 'done' === $promo_timestamp ) {

[494] Fix | Delete

continue;

[495] Fix | Delete

}

[496] Fix | Delete

[497] Fix | Delete

// Not reach the dateline yet.

[498] Fix | Delete

if ( time() < $promo_timestamp ) {

[499] Fix | Delete