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<?php

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/**

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* Base class for handling Search requests.

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namespace StringLocator\Base;

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/**

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* Search class.

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class Search {

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/**

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* The server-configured max time a script can run.

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* @var int

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protected $max_execution_time = null;

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/**

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* The current time when our script started executing.

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* @var float

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protected $start_execution_timer = 0;

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/**

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* The server-configured max amount of memory a script can use.

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* @var int

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protected $max_memory_consumption = 0;

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/**

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* The path to the currently editable file.

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* @var string

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protected $path_to_use = '';

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/**

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* Class constructor.

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public function __construct() {

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/**

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* Define class variables requiring expressions

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$this->path_to_use = ( is_multisite() ? 'network/admin.php' : 'tools.php' );

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$this->max_execution_time = absint( ini_get( 'max_execution_time' ) );

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$this->start_execution_timer = microtime( true );

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if ( $this->max_execution_time > 30 ) {

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$this->max_execution_time = 30;

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}

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$this->set_memory_limit();

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add_action( 'string_locator_search_templates', array( $this, 'add_search_response_template' ) );

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}

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/**

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* Load an underscores template file to be used in the search response.

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* @return void

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public function add_search_response_template() {

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require_once STRING_LOCATOR_PLUGIN_DIR . '/views/templates/search-default.php';

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}

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/**

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* Sets up the memory limit variables.

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* @return void

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* @since 2.0.0

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function set_memory_limit() {

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$memory_limit = ini_get( 'memory_limit' );

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$this->max_memory_consumption = absint( $memory_limit );

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if ( strstr( $memory_limit, 'k' ) ) {

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$this->max_memory_consumption = ( str_replace( 'k', '', $memory_limit ) * 1000 );

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}

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if ( strstr( $memory_limit, 'M' ) ) {

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$this->max_memory_consumption = ( str_replace( 'M', '', $memory_limit ) * 1000000 );

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}

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if ( strstr( $memory_limit, 'G' ) ) {

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$this->max_memory_consumption = ( str_replace( 'G', '', $memory_limit ) * 1000000000 );

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}

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}

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/**

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* Check if the script is about to exceed the max execution time.

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* @return bool

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* @since 1.9.0

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function nearing_execution_limit() {

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// Max execution time is 0 or -1 (infinite) in server config

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if ( 0 === $this->max_execution_time || - 1 === $this->max_execution_time ) {

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return false;

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}

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$back_compat_filter = apply_filters( 'string-locator-extra-search-delay', 2 ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores

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$built_in_delay = apply_filters( 'string_locator_extra_search_delay', $back_compat_filter );

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$execution_time = ( microtime( true ) - $this->start_execution_timer + $built_in_delay );

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if ( $execution_time >= $this->max_execution_time ) {

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return $execution_time;

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}

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return false;

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}

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/**

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* Check if the script is about to exceed the server memory limit.

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* @return bool

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* @since 2.0.0

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function nearing_memory_limit() {

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// Check if the memory limit is set t o0 or -1 (infinite) in server config

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if ( 0 === $this->max_memory_consumption || - 1 === $this->max_memory_consumption ) {

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return false;

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}

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// We give our selves a 256k memory buffer, as we need to close off the script properly as well

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$back_compat_filter = apply_filters( 'string-locator-extra-memory-buffer', 256000 ); //phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores

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$built_in_buffer = apply_filters( 'string_locator_extra_memory_buffer', $back_compat_filter );

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$memory_use = ( memory_get_usage( true ) + $built_in_buffer );

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if ( $memory_use >= $this->max_memory_consumption ) {

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return $memory_use;

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}

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return false;

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}

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}

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