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<?php
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namespace ShortPixel\Model;
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if ( ! defined( 'ABSPATH' ) ) {
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exit; // Exit if accessed directly.
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}
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use ShortPixel\ShortPixelLogger\ShortPixelLogger as Log;
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/** Loads a few environment variables handy to have nearby
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*
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* Notice - This is meant to be loaded via the plugin class. Easy access with wpSPIO()->getEnv().
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*/
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class EnvironmentModel extends \ShortPixel\Model
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{
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// Server and PHP
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public $is_nginx;
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public $is_apache;
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public $is_gd_installed;
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public $is_curl_installed;
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private $disabled_functions = array();
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// MultiSite
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public $is_multisite;
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public $is_mainsite;
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// Integrations
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public $has_nextgen;
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// WordPress
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public $is_front = false;
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public $is_admin = false;
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public $is_ajaxcall = false;
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private $screen_is_set = false;
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public $is_screen_to_use = false; // where shortpixel optimizer loads
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public $is_our_screen = false; // where shortpixel hooks in more complicated functions.
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public $is_gutenberg_editor = false;
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public $is_bulk_page = false; // ShortPixel bulk screen.
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public $screen_id = false;
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// Debug flag
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public $is_debug = false;
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// Is the plugin configured to automatically optimize on upload hook?
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public $is_autoprocess = false;
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protected static $instance;
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public function __construct()
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{
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$this->setServer();
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$this->setWordPress();
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add_action('plugins_loaded', array($this, 'setIntegrations') ); // not set on construct.
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add_action('current_screen', array($this, 'setScreen') ); // Not set on construct
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}
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public static function getInstance()
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{
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if (is_null(self::$instance))
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self::$instance = new EnvironmentModel();
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/*if (! self::$instance->screen_is_set)
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self::$instance->setScreen(); */
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return self::$instance;
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}
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/** Check ENV is a specific function is allowed. Use this with functions that might be turned off on configurations
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* @param $function String The name of the function being tested
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* Note: In future this function can be extended with other function edge cases.
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*/
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public function is_function_usable($function)
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{
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if (count($this->disabled_functions) == 0)
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{
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$disabled = ini_get('disable_functions');
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$this->disabled_functions = explode(',', $disabled);
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}
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if (isset($this->disabled_functions[$function]))
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return false;
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if (function_exists($function))
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return true;
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return false;
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}
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public function checkPHPVersion($needed)
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{
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if (version_compare(PHP_VERSION, $needed) >= 0 )
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{
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return true;
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}
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return false;
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}
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public function plugin_active($name)
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{
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switch($name)
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{
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case 'wpml':
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$plugin = 'sitepress-multilingual-cms/sitepress.php';
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break;
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case 'polylang':
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$plugin = 'polylang/polylang.php';
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break;
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case 'spai':
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$plugin = 'shortpixel-adaptive-images/short-pixel-ai.php';
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break;
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case 's3-offload':
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$plugin = 'amazon-s3-and-cloudfront/wordpress-s3.php';
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break;
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case 'woocommerce':
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$plugin = 'woocommerce/woocommerce.php';
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break;
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default:
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$plugin = 'none';
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break;
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}
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if (!function_exists('is_plugin_active')) {
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include_once(ABSPATH . 'wp-admin/includes/plugin.php');
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}
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return \is_plugin_active($plugin);
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}
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//https://www.php.net/manual/en/function.sys-getloadavg.php
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public function getSystemLoad()
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{
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$load = sys_getloadavg();
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}
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/* https://github.com/WordPress/WordPress/blob/master/wp-includes/class-wp-image-editor-imagick.php */
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public function hasImagick()
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{
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$editor = wp_get_image_editor(\wpSPIO()->plugin_path('res/img/test.jpg'));
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$className = get_class($editor);
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if ($className == 'WP_Image_Editor_Imagick')
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return true;
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else
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return false;
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}
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public function hasOffload()
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{
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$off = \ShortPixel\External\Offload\Offloader::getInstance();
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$name = $off->getOffloadName();
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if (is_null($name))
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return false;
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else
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return true;
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}
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public function getOffloadName()
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{
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$off = \ShortPixel\External\Offload\Offloader::getInstance();
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$name = $off->getOffloadName();
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return $name;
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}
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public function useVirtualHeavyFunctions()
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{
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$bool = apply_filters('shortpixel/file/virtual/heavy_features', true);
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return $bool;
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}
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private function setServer()
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{
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$this->is_nginx = ! empty($_SERVER["SERVER_SOFTWARE"]) && strpos(strtolower(wp_unslash($_SERVER["SERVER_SOFTWARE"])), 'nginx') !== false ? true : false;
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$this->is_apache = ! empty($_SERVER["SERVER_SOFTWARE"]) && strpos(strtolower(wp_unslash($_SERVER["SERVER_SOFTWARE"])), 'apache') !== false ? true : false;
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$this->is_gd_installed = function_exists('imagecreatefrompng') && function_exists('imagejpeg');
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$this->is_curl_installed = function_exists('curl_init');
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}
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private function setWordPress()
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{
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$this->is_multisite = (function_exists("is_multisite") && is_multisite()) ? true : false;
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$this->is_mainsite = (function_exists('is_main_site') && true === is_main_site()) ? true : false;
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$this->determineFrontBack();
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if (wp_doing_ajax())
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{
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$this->is_ajaxcall = true;
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}
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$this->is_debug = Log::debugIsActive();
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if (\wpSPIO()->settings()->autoMediaLibrary == 1)
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$this->is_autoprocess = true;
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}
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// check if this request is front or back.
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protected function determineFrontBack()
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{
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if ( is_admin() || wp_doing_ajax() )
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$this->is_admin = true;
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else
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$this->is_front = true;
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}
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public function setScreen($screen)
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{
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// WordPress pages where we'll be active on.
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// https://codex.wordpress.org/Plugin_API/Admin_Screen_Reference
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$use_screens = array(
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'edit-post_tag', // edit tags
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'upload', // media library
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'attachment', // edit media
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'post', // post screen
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'page', // page editor
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'edit-post', // edit post
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'new-post', // new post
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'edit-page', // all pages
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'media', // add new item screen
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);
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$use_screens = apply_filters('shortpixel/init/optimize_on_screens', $use_screens);
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$this->screen_id = $screen->id;
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if(is_array($use_screens) && in_array($screen->id, $use_screens)) {
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$this->is_screen_to_use = true;
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}
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// Our pages.
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$pages = \wpSPIO()->get_admin_pages();
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// the main WP pages where SPIO hooks a lot of functions into, our operating area.
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$wp_pages = array('upload', 'attachment');
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$pages = array_merge($pages, $wp_pages);
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/* pages can be null in certain cases i.e. plugin activation.
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* treat those cases as improper screen set.
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*/
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if (is_null($pages))
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{
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return false;
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}
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if ( in_array($screen->id, $pages))
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{
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$this->is_screen_to_use = true;
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$this->is_our_screen = true;
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// Strpos instead of full screen id, because the first page (media_page) is not reliable and can change.
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if ( strpos($screen->id, 'wp-short-pixel-bulk') !== false)
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$this->is_bulk_page = true;
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}
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elseif (is_object($screen) && method_exists( $screen, 'is_block_editor' ) && $screen->is_block_editor() ) {
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$this->is_screen_to_use = true;
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$this->is_gutenberg_editor = true;
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}
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$this->screen_is_set = true;
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}
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public function setIntegrations()
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{
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$ng = \ShortPixel\NextGenController::getInstance();
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$this->has_nextgen = $ng->has_nextgen();
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}
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//set default move as "list". only set once, it won't try to set the default mode again.
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public function setDefaultViewModeList()
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{
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$settings = \wpSPIO()->settings();
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if( $settings->mediaLibraryViewMode == false)
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{
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$settings->mediaLibraryViewMode = 1;
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$currentUserID = false;
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if ( function_exists('wp_get_current_user') ) {
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$current_user = wp_get_current_user();
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$currentUserID = $current_user->ID;
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update_user_meta($currentUserID, "wp_media_library_mode", "list");
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}
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}
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}
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public function getRelativePluginSlug()
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{
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$dir = SHORTPIXEL_PLUGIN_DIR;
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$file = SHORTPIXEL_PLUGIN_FILE;
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$fs = \wpSPIO()->filesystem();
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$plugins_dir = $fs->getDirectory($dir)->getParent();
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$slug = str_replace($plugins_dir->getPath(), '', $file);
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return $slug;
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}
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public function useDoubleWebpExtension()
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{
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if (defined('SHORTPIXEL_USE_DOUBLE_WEBP_EXTENSION') && SHORTPIXEL_USE_DOUBLE_WEBP_EXTENSION)
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return true;
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return false;
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}
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public function useDoubleAvifExtension()
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{
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if (defined('SHORTPIXEL_USE_DOUBLE_AVIF_EXTENSION') && SHORTPIXEL_USE_DOUBLE_AVIF_EXTENSION)
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return true;
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return false;
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}
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public function useTrustedMode()
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{
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if (defined('SHORTPIXEL_TRUSTED_MODE') && true === SHORTPIXEL_TRUSTED_MODE)
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{
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return true;
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}
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return false;
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}
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}
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