329 lines
10 KiB
PHP
329 lines
10 KiB
PHP
<?php
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/**
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* WPSEO plugin file.
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*
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* @package WPSEO\Admin
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* @since 1.7.0
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*/
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/**
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* Base class for handling plugin conflicts.
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*/
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class Yoast_Plugin_Conflict {
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/**
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* The plugins must be grouped per section.
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*
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* It's possible to check for each section if there are conflicting plugins.
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*
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* @var array
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*/
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protected $plugins = [];
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/**
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* All the current active plugins will be stored in this private var.
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*
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* @var array
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*/
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protected $all_active_plugins = [];
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/**
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* After searching for active plugins that are in $this->plugins the active plugins will be stored in this
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* property.
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*
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* @var array
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*/
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protected $active_conflicting_plugins = [];
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/**
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* Property for holding instance of itself.
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*
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* @var Yoast_Plugin_Conflict
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*/
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protected static $instance;
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/**
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* For the use of singleton pattern. Create instance of itself and return this instance.
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*
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* @param string $class_name Give the classname to initialize. If classname is
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* false (empty) it will use it's own __CLASS__.
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*
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* @return Yoast_Plugin_Conflict
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*/
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public static function get_instance( $class_name = '' ) {
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if ( is_null( self::$instance ) ) {
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if ( ! is_string( $class_name ) || $class_name === '' ) {
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$class_name = __CLASS__;
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}
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self::$instance = new $class_name();
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}
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return self::$instance;
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}
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/**
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* Setting instance, all active plugins and search for active plugins.
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*
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* Protected constructor to prevent creating a new instance of the
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* *Singleton* via the `new` operator from outside this class.
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*/
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protected function __construct() {
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// Set active plugins.
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$this->all_active_plugins = get_option( 'active_plugins' );
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// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Reason: We are not processing form information.
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if ( isset( $_GET['action'] ) && is_string( $_GET['action'] ) ) {
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// phpcs:ignore WordPress.Security.NonceVerification.Recommended, WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- Reason: We are not processing form information and only comparing the variable in a condition.
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$action = wp_unslash( $_GET['action'] );
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if ( $action === 'deactivate' ) {
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$this->remove_deactivated_plugin();
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}
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}
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// Search for active plugins.
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$this->search_active_plugins();
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}
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/**
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* Check if there are conflicting plugins for given $plugin_section.
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*
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* @param string $plugin_section Type of plugin conflict (such as Open Graph or sitemap).
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*
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* @return bool
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*/
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public function check_for_conflicts( $plugin_section ) {
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static $sections_checked;
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// Return early if there are no active conflicting plugins at all.
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if ( empty( $this->active_conflicting_plugins ) ) {
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return false;
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}
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if ( $sections_checked === null ) {
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$sections_checked = [];
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}
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if ( ! \in_array( $plugin_section, $sections_checked, true ) ) {
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$sections_checked[] = $plugin_section;
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return ( ! empty( $this->active_conflicting_plugins[ $plugin_section ] ) );
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}
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return false;
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}
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/**
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* Checks for given $plugin_sections for conflicts.
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*
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* @param array $plugin_sections Set of sections.
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*/
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public function check_plugin_conflicts( $plugin_sections ) {
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foreach ( $plugin_sections as $plugin_section => $readable_plugin_section ) {
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// Check for conflicting plugins and show error if there are conflicts.
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if ( $this->check_for_conflicts( $plugin_section ) ) {
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$this->set_error( $plugin_section, $readable_plugin_section );
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}
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}
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// List of all active sections.
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$sections = \array_keys( $plugin_sections );
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// List of all sections.
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$all_plugin_sections = \array_keys( $this->plugins );
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/*
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* Get all sections that are inactive.
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* These plugins need to be cleared.
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*
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* This happens when Sitemaps or OpenGraph implementations toggle active/disabled.
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*/
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$inactive_sections = \array_diff( $all_plugin_sections, $sections );
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if ( ! empty( $inactive_sections ) ) {
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foreach ( $inactive_sections as $section ) {
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\array_walk( $this->plugins[ $section ], [ $this, 'clear_error' ] );
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}
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}
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// For active sections clear errors for inactive plugins.
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foreach ( $sections as $section ) {
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// By default, clear errors for all plugins of the section.
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$inactive_plugins = $this->plugins[ $section ];
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// If there are active plugins, filter them from being cleared.
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if ( isset( $this->active_conflicting_plugins[ $section ] ) ) {
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$inactive_plugins = \array_diff( $this->plugins[ $section ], $this->active_conflicting_plugins[ $section ] );
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}
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\array_walk( $inactive_plugins, [ $this, 'clear_error' ] );
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}
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}
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/**
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* Setting an error on the screen.
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*
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* @param string $plugin_section Type of conflict group (such as Open Graph or sitemap).
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* @param string $readable_plugin_section This is the value for the translation.
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*/
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protected function set_error( $plugin_section, $readable_plugin_section ) {
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$notification_center = Yoast_Notification_Center::get();
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foreach ( $this->active_conflicting_plugins[ $plugin_section ] as $plugin_file ) {
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$plugin_name = $this->get_plugin_name( $plugin_file );
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$error_message = '';
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/* translators: %1$s: 'Facebook & Open Graph' plugin name(s) of possibly conflicting plugin(s), %2$s to Yoast SEO */
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$error_message .= '<p>' . sprintf( __( 'The %1$s plugin might cause issues when used in conjunction with %2$s.', 'wordpress-seo' ), '<em>' . $plugin_name . '</em>', 'Yoast SEO' ) . '</p>';
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$error_message .= '<p>' . sprintf( $readable_plugin_section, 'Yoast SEO', $plugin_name ) . '</p>';
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/* translators: %s: 'Facebook' plugin name of possibly conflicting plugin */
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$error_message .= '<a class="button button-primary" href="' . wp_nonce_url( 'plugins.php?action=deactivate&plugin=' . $plugin_file . '&plugin_status=all', 'deactivate-plugin_' . $plugin_file ) . '">' . sprintf( __( 'Deactivate %s', 'wordpress-seo' ), $this->get_plugin_name( $plugin_file ) ) . '</a> ';
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$identifier = $this->get_notification_identifier( $plugin_file );
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// Add the message to the notifications center.
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$notification_center->add_notification(
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new Yoast_Notification(
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$error_message,
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[
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'type' => Yoast_Notification::ERROR,
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'id' => 'wpseo-conflict-' . $identifier,
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]
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)
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);
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}
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}
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/**
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* Clear the notification for a plugin.
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*
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* @param string $plugin_file Clear the optional notification for this plugin.
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*/
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public function clear_error( $plugin_file ) {
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$identifier = $this->get_notification_identifier( $plugin_file );
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$notification_center = Yoast_Notification_Center::get();
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$notification_center->remove_notification_by_id( 'wpseo-conflict-' . $identifier );
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}
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/**
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* Loop through the $this->plugins to check if one of the plugins is active.
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*
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* This method will store the active plugins in $this->active_plugins.
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*/
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protected function search_active_plugins() {
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foreach ( $this->plugins as $plugin_section => $plugins ) {
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$this->check_plugins_active( $plugins, $plugin_section );
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}
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}
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/**
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* Loop through plugins and check if each plugin is active.
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*
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* @param array $plugins Set of plugins.
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* @param string $plugin_section Type of conflict group (such as Open Graph or sitemap).
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*/
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protected function check_plugins_active( $plugins, $plugin_section ) {
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foreach ( $plugins as $plugin ) {
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if ( $this->check_plugin_is_active( $plugin ) ) {
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$this->add_active_plugin( $plugin_section, $plugin );
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}
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}
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}
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/**
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* Check if given plugin exists in array with all_active_plugins.
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*
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* @param string $plugin Plugin basename string.
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*
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* @return bool
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*/
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protected function check_plugin_is_active( $plugin ) {
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return \in_array( $plugin, $this->all_active_plugins, true );
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}
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/**
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* Add plugin to the list of active plugins.
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*
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* This method will check first if key $plugin_section exists, if not it will create an empty array
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* If $plugin itself doesn't exist it will be added.
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*
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* @param string $plugin_section Type of conflict group (such as Open Graph or sitemap).
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* @param string $plugin Plugin basename string.
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*/
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protected function add_active_plugin( $plugin_section, $plugin ) {
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if ( ! \array_key_exists( $plugin_section, $this->active_conflicting_plugins ) ) {
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$this->active_conflicting_plugins[ $plugin_section ] = [];
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}
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if ( ! \in_array( $plugin, $this->active_conflicting_plugins[ $plugin_section ], true ) ) {
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$this->active_conflicting_plugins[ $plugin_section ][] = $plugin;
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}
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}
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/**
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* Search in $this->plugins for the given $plugin.
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*
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* If there is a result it will return the plugin category.
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*
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* @param string $plugin Plugin basename string.
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*
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* @return int|string
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*/
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protected function find_plugin_category( $plugin ) {
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foreach ( $this->plugins as $plugin_section => $plugins ) {
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if ( \in_array( $plugin, $plugins, true ) ) {
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return $plugin_section;
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}
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}
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}
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/**
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* Get plugin name from file.
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*
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* @param string $plugin Plugin path relative to plugins directory.
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*
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* @return string|bool Plugin name or false when no name is set.
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*/
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protected function get_plugin_name( $plugin ) {
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$plugin_details = \get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin );
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if ( $plugin_details['Name'] !== '' ) {
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return $plugin_details['Name'];
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}
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return false;
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}
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/**
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* When being in the deactivation process the currently deactivated plugin has to be removed.
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*/
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private function remove_deactivated_plugin() {
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// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Reason: On the deactivation screen the nonce is already checked by WordPress itself.
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if ( ! isset( $_GET['plugin'] ) || ! is_string( $_GET['plugin'] ) ) {
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return;
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}
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// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Reason: On the deactivation screen the nonce is already checked by WordPress itself.
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$deactivated_plugin = sanitize_text_field( wp_unslash( $_GET['plugin'] ) );
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$key_to_remove = \array_search( $deactivated_plugin, $this->all_active_plugins, true );
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if ( $key_to_remove !== false ) {
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unset( $this->all_active_plugins[ $key_to_remove ] );
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}
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}
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/**
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* Get the identifier from the plugin file.
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*
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* @param string $plugin_file Plugin file to get Identifier from.
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*
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* @return string
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*/
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private function get_notification_identifier( $plugin_file ) {
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return \md5( $plugin_file );
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}
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}
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