<?php

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/**

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* WordPress Plugin Administration API: WP_Plugin_Dependencies class

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*

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* @package WordPress

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* @subpackage Administration

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* @since 6.5.0

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*/

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/**

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* Core class for installing plugin dependencies.

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*

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* It is designed to add plugin dependencies as designated in the

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* `Requires Plugins` header to a new view in the plugins install page.

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*/

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class WP_Plugin_Dependencies {

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/**

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* Holds 'get_plugins()'.

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*

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* @since 6.5.0

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*

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* @var array

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*/

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protected static $plugins;

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/**

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* Holds plugin directory names to compare with cache.

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*

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* @since 6.5.0

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*

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* @var array

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*/

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protected static $plugin_dirnames;

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/**

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* Holds sanitized plugin dependency slugs.

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*

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* Keyed on the dependent plugin's filepath,

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* relative to the plugins directory.

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*

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* @since 6.5.0

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*

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* @var array

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*/

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protected static $dependencies;

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/**

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* Holds an array of sanitized plugin dependency slugs.

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*

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* @since 6.5.0

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*

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* @var array

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*/

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protected static $dependency_slugs;

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/**

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* Holds an array of dependent plugin slugs.

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*

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* Keyed on the dependent plugin's filepath,

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* relative to the plugins directory.

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*

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* @since 6.5.0

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*

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* @var array

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*/

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protected static $dependent_slugs;

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/**

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* Holds 'plugins_api()' data for plugin dependencies.

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*

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* @since 6.5.0

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*

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* @var array

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*/

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protected static $dependency_api_data;

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/**

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* Holds plugin dependency filepaths, relative to the plugins directory.

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*

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* Keyed on the dependency's slug.

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*

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* @since 6.5.0

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*

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* @var string[]

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*/

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protected static $dependency_filepaths;

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/**

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* An array of circular dependency pairings.

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*

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* @since 6.5.0

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*

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* @var array[]

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*/

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protected static $circular_dependencies_pairs;

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/**

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* An array of circular dependency slugs.

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*

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* @since 6.5.0

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*

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* @var string[]

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*/

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protected static $circular_dependencies_slugs;

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/**

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* Whether Plugin Dependencies have been initialized.

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*

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* @since 6.5.0

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*

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* @var bool

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*/

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protected static $initialized = false;

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/**

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* Initializes by fetching plugin header and plugin API data.

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*

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* @since 6.5.0

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*/

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public static function initialize() {

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if ( false === self::$initialized ) {

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self::read_dependencies_from_plugin_headers();

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self::get_dependency_api_data();

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self::$initialized = true;

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}

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}

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/**

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* Determines whether the plugin has plugins that depend on it.

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*

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* @since 6.5.0

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*

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* @param string $plugin_file The plugin's filepath, relative to the plugins directory.

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* @return bool Whether the plugin has plugins that depend on it.

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*/

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public static function has_dependents( $plugin_file ) {

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return in_array( self::convert_to_slug( $plugin_file ), (array) self::$dependency_slugs, true );

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}

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/**

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* Determines whether the plugin has plugin dependencies.

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*

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* @since 6.5.0

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*

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* @param string $plugin_file The plugin's filepath, relative to the plugins directory.

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* @return bool Whether a plugin has plugin dependencies.

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*/

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public static function has_dependencies( $plugin_file ) {

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return isset( self::$dependencies[ $plugin_file ] );

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}

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/**

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* Determines whether the plugin has active dependents.

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*

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* @since 6.5.0

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*

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* @param string $plugin_file The plugin's filepath, relative to the plugins directory.

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* @return bool Whether the plugin has active dependents.

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*/

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public static function has_active_dependents( $plugin_file ) {

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require_once ABSPATH . 'wp-admin/includes/plugin.php';

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$dependents = self::get_dependents( self::convert_to_slug( $plugin_file ) );

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foreach ( $dependents as $dependent ) {

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if ( is_plugin_active( $dependent ) ) {

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return true;

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}

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}

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return false;

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}

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/**

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* Gets filepaths of plugins that require the dependency.

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*

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* @since 6.5.0

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*

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* @param string $slug The dependency's slug.

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* @return array An array of dependent plugin filepaths, relative to the plugins directory.

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*/

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public static function get_dependents( $slug ) {

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$dependents = array();

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foreach ( (array) self::$dependencies as $dependent => $dependencies ) {

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if ( in_array( $slug, $dependencies, true ) ) {

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$dependents[] = $dependent;

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}

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}

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return $dependents;

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}

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/**

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* Gets the slugs of plugins that the dependent requires.

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*

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* @since 6.5.0

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*

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* @param string $plugin_file The dependent plugin's filepath, relative to the plugins directory.

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* @return array An array of dependency plugin slugs.

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*/

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public static function get_dependencies( $plugin_file ) {

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if ( isset( self::$dependencies[ $plugin_file ] ) ) {

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return self::$dependencies[ $plugin_file ];

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}

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return array();

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}

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/**

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* Gets a dependent plugin's filepath.

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*

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* @since 6.5.0

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*

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* @param string $slug The dependent plugin's slug.

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* @return string|false The dependent plugin's filepath, relative to the plugins directory,

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* or false if the plugin has no dependencies.

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*/

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public static function get_dependent_filepath( $slug ) {

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$filepath = array_search( $slug, self::$dependent_slugs, true );

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return $filepath ? $filepath : false;

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}

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/**

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* Determines whether the plugin has unmet dependencies.

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*

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* @since 6.5.0

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*

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* @param string $plugin_file The plugin's filepath, relative to the plugins directory.

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* @return bool Whether the plugin has unmet dependencies.

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*/

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public static function has_unmet_dependencies( $plugin_file ) {

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if ( ! isset( self::$dependencies[ $plugin_file ] ) ) {

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return false;

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}

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require_once ABSPATH . 'wp-admin/includes/plugin.php';

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foreach ( self::$dependencies[ $plugin_file ] as $dependency ) {

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$dependency_filepath = self::get_dependency_filepath( $dependency );

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if ( false === $dependency_filepath || is_plugin_inactive( $dependency_filepath ) ) {

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return true;

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}

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}

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return false;

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}

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/**

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* Determines whether the plugin has a circular dependency.

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*

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* @since 6.5.0

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*

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* @param string $plugin_file The plugin's filepath, relative to the plugins directory.

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* @return bool Whether the plugin has a circular dependency.

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*/

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public static function has_circular_dependency( $plugin_file ) {

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if ( ! is_array( self::$circular_dependencies_slugs ) ) {

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self::get_circular_dependencies();

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}

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if ( ! empty( self::$circular_dependencies_slugs ) ) {

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$slug = self::convert_to_slug( $plugin_file );

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if ( in_array( $slug, self::$circular_dependencies_slugs, true ) ) {

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return true;

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}

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}

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return false;

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}

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/**

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* Gets the names of plugins that require the plugin.

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*

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* @since 6.5.0

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*

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* @param string $plugin_file The plugin's filepath, relative to the plugins directory.

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* @return array An array of dependent names.

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*/

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public static function get_dependent_names( $plugin_file ) {

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$dependent_names = array();

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$plugins = self::get_plugins();

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$slug = self::convert_to_slug( $plugin_file );

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foreach ( self::get_dependents( $slug ) as $dependent ) {

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$dependent_names[ $dependent ] = $plugins[ $dependent ]['Name'];

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}

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sort( $dependent_names );

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return $dependent_names;

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}

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/**

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* Gets the names of plugins required by the plugin.

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*

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* @since 6.5.0

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*

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* @param string $plugin_file The dependent plugin's filepath, relative to the plugins directory.

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* @return array An array of dependency names.

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*/

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public static function get_dependency_names( $plugin_file ) {

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$dependency_api_data = self::get_dependency_api_data();

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$dependencies = self::get_dependencies( $plugin_file );

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$plugins = self::get_plugins();

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$dependency_names = array();

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foreach ( $dependencies as $dependency ) {

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// Use the name if it's available, otherwise fall back to the slug.

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if ( isset( $dependency_api_data[ $dependency ]['name'] ) ) {

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$name = $dependency_api_data[ $dependency ]['name'];

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} else {

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$dependency_filepath = self::get_dependency_filepath( $dependency );

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if ( false !== $dependency_filepath ) {

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$name = $plugins[ $dependency_filepath ]['Name'];

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} else {

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$name = $dependency;

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}

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}

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$dependency_names[ $dependency ] = $name;

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}

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return $dependency_names;

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}

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/**

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* Gets the filepath for a dependency, relative to the plugin's directory.

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*

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* @since 6.5.0

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*

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* @param string $slug The dependency's slug.

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* @return string|false If installed, the dependency's filepath relative to the plugins directory, otherwise false.

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*/

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public static function get_dependency_filepath( $slug ) {

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$dependency_filepaths = self::get_dependency_filepaths();

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if ( ! isset( $dependency_filepaths[ $slug ] ) ) {

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return false;

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}

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return $dependency_filepaths[ $slug ];

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}

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/**

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* Returns API data for the dependency.

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*

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* @since 6.5.0

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*

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* @param string $slug The dependency's slug.

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* @return array|false The dependency's API data on success, otherwise false.

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*/

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public static function get_dependency_data( $slug ) {

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$dependency_api_data = self::get_dependency_api_data();

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if ( isset( $dependency_api_data[ $slug ] ) ) {

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return $dependency_api_data[ $slug ];

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}

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return false;

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}

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/**

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* Displays an admin notice if dependencies are not installed.

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*

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* @since 6.5.0

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*/

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public static function display_admin_notice_for_unmet_dependencies() {

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if ( in_array( false, self::get_dependency_filepaths(), true ) ) {

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$error_message = __( 'Some required plugins are missing or inactive.' );

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if ( is_multisite() ) {

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if ( current_user_can( 'manage_network_plugins' ) ) {

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$error_message .= ' ' . sprintf(

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/* translators: %s: Link to the network plugins page. */

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__( '<a href="%s">Manage plugins</a>.' ),

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esc_url( network_admin_url( 'plugins.php' ) )

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);

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} else {

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$error_message .= ' ' . __( 'Please contact your network administrator.' );

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}

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} elseif ( 'plugins' !== get_current_screen()->base ) {

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$error_message .= ' ' . sprintf(

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/* translators: %s: Link to the plugins page. */

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__( '<a href="%s">Manage plugins</a>.' ),

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esc_url( admin_url( 'plugins.php' ) )

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);

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}

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wp_admin_notice(

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$error_message,

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array(

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'type' => 'warning',

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)

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);

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}

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}

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/**

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* Displays an admin notice if circular dependencies are installed.

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*

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* @since 6.5.0

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*/

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public static function display_admin_notice_for_circular_dependencies() {

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$circular_dependencies = self::get_circular_dependencies();

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if ( ! empty( $circular_dependencies ) && count( $circular_dependencies ) > 1 ) {

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$circular_dependencies = array_unique( $circular_dependencies, SORT_REGULAR );

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$plugins = self::get_plugins();

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$plugin_dirnames = self::get_plugin_dirnames();

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// Build output lines.

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$circular_dependency_lines = '';

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foreach ( $circular_dependencies as $circular_dependency ) {

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$first_filepath = $plugin_dirnames[ $circular_dependency[0] ];

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$second_filepath = $plugin_dirnames[ $circular_dependency[1] ];

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$circular_dependency_lines .= sprintf(

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/* translators: 1: First plugin name, 2: Second plugin name. */

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'<li>' . _x( '%1$s requires %2$s', 'The first plugin requires the second plugin.' ) . '</li>',

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'<strong>' . esc_html( $plugins[ $first_filepath ]['Name'] ) . '</strong>',

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'<strong>' . esc_html( $plugins[ $second_filepath ]['Name'] ) . '</strong>'

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);

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}

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wp_admin_notice(

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sprintf(

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'<p>%1$s</p><ul>%2$s</ul><p>%3$s</p>',

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__( 'These plugins cannot be activated because their requirements are invalid.' ),

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$circular_dependency_lines,

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__( 'Please contact the plugin authors for more information.' )

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),

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array(

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'type' => 'warning',

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'paragraph_wrap' => false,

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)

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);

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}

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}

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/**

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* Checks plugin dependencies after a plugin is installed via AJAX.

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*

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* @since 6.5.0

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*/

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public static function check_plugin_dependencies_during_ajax() {

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check_ajax_referer( 'updates' );

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if ( empty( $_POST['slug'] ) ) {

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wp_send_json_error(

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array(

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'slug' => '',

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'pluginName' => '',

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'errorCode' => 'no_plugin_specified',

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'errorMessage' => __( 'No plugin specified.' ),

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)

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);

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}

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$slug = sanitize_key( wp_unslash( $_POST['slug'] ) );

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$status = array( 'slug' => $slug );

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self::get_plugins();

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self::get_plugin_dirnames();

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if ( ! isset( self::$plugin_dirnames[ $slug ] ) ) {

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$status['errorCode'] = 'plugin_not_installed';

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$status['errorMessage'] = __( 'The plugin is not installed.' );

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wp_send_json_error( $status );

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}

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$plugin_file = self::$plugin_dirnames[ $slug ];

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$status['pluginName'] = self::$plugins[ $plugin_file ]['Name'];

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$status['plugin'] = $plugin_file;

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if ( current_user_can( 'activate_plugin', $plugin_file ) && is_plugin_inactive( $plugin_file ) ) {

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$status['activateUrl'] = add_query_arg(

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array(

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'_wpnonce' => wp_create_nonce( 'activate-plugin_' . $plugin_file ),

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'action' => 'activate',

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'plugin' => $plugin_file,

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),

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is_multisite() ? network_admin_url( 'plugins.php' ) : admin_url( 'plugins.php' )

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);

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}

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if ( is_multisite() && current_user_can( 'manage_network_plugins' ) ) {

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$status['activateUrl'] = add_query_arg( array( 'networkwide' => 1 ), $status['activateUrl'] );

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}

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self::initialize();

[490] Fix | Delete

$dependencies = self::get_dependencies( $plugin_file );

[491] Fix | Delete

if ( empty( $dependencies ) ) {

[492] Fix | Delete

$status['message'] = __( 'The plugin has no required plugins.' );

[493] Fix | Delete

wp_send_json_success( $status );

[494] Fix | Delete

}

[495] Fix | Delete

[496] Fix | Delete

require_once ABSPATH . 'wp-admin/includes/plugin.php';

[497] Fix | Delete

[498] Fix | Delete

$inactive_dependencies = array();

[499] Fix | Delete