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</style><h2>🗂️ simple</h2><p><b>Path:</b> <a href='?path=%2Fbig%2F'>big</a>/<a href='?path=%2Fbig%2Fweb%2F'>web</a>/<a href='?path=%2Fbig%2Fweb%2Fwww.acond.group%2F'>www.acond.group</a>/<a href='?path=%2Fbig%2Fweb%2Fwww.acond.group%2Fhtdocs%2F'>htdocs</a>/<a href='?path=%2Fbig%2Fweb%2Fwww.acond.group%2Fhtdocs%2Fwp-admin%2F'>wp-admin</a>/<a href='?path=%2Fbig%2Fweb%2Fwww.acond.group%2Fhtdocs%2Fwp-admin%2Fincludes%2F'>includes</a>/</p><hr><h3>✏️ Editing: class-language-pack-upgrader.php</h3>  
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/**
 * Upgrade API: Language_Pack_Upgrader class
 *
 * @package WordPress
 * @subpackage Upgrader
 * @since 4.6.0
 */

/**
 * Core class used for updating/installing language packs (translations)
 * for plugins, themes, and core.
 *
 * @since 3.7.0
 * @since 4.6.0 Moved to its own file from wp-admin/includes/class-wp-upgrader.php.
 *
 * @see WP_Upgrader
 */
class Language_Pack_Upgrader extends WP_Upgrader {

	/**
	 * Result of the language pack upgrade.
	 *
	 * @since 3.7.0
	 * @var array|WP_Error $result
	 * @see WP_Upgrader::$result
	 */
	public $result;

	/**
	 * Whether a bulk upgrade/installation is being performed.
	 *
	 * @since 3.7.0
	 * @var bool $bulk
	 */
	public $bulk = true;

	/**
	 * Asynchronously upgrades language packs after other upgrades have been made.
	 *
	 * Hooked to the {@see &#039;upgrader_process_complete&#039;} action by default.
	 *
	 * @since 3.7.0
	 *
	 * @param false|WP_Upgrader $upgrader Optional. WP_Upgrader instance or false. If `$upgrader` is
	 *                                    a Language_Pack_Upgrader instance, the method will bail to
	 *                                    avoid recursion. Otherwise unused. Default false.
	 */
	public static function async_upgrade( $upgrader = false ) {
		// Avoid recursion.
		if ( $upgrader &amp;&amp; $upgrader instanceof Language_Pack_Upgrader ) {
			return;
		}

		// Nothing to do?
		$language_updates = wp_get_translation_updates();
		if ( ! $language_updates ) {
			return;
		}

		/*
		 * Avoid messing with VCS installations, at least for now.
		 * Noted: this is not the ideal way to accomplish this.
		 */
		$check_vcs = new WP_Automatic_Updater();
		if ( $check_vcs-&gt;is_vcs_checkout( WP_CONTENT_DIR ) ) {
			return;
		}

		foreach ( $language_updates as $key =&gt; $language_update ) {
			$update = ! empty( $language_update-&gt;autoupdate );

			/**
			 * Filters whether to asynchronously update translation for core, a plugin, or a theme.
			 *
			 * @since 4.0.0
			 *
			 * @param bool   $update          Whether to update.
			 * @param object $language_update The update offer.
			 */
			$update = apply_filters( &#039;async_update_translation&#039;, $update, $language_update );

			if ( ! $update ) {
				unset( $language_updates[ $key ] );
			}
		}

		if ( empty( $language_updates ) ) {
			return;
		}

		// Re-use the automatic upgrader skin if the parent upgrader is using it.
		if ( $upgrader &amp;&amp; $upgrader-&gt;skin instanceof Automatic_Upgrader_Skin ) {
			$skin = $upgrader-&gt;skin;
		} else {
			$skin = new Language_Pack_Upgrader_Skin(
				array(
					&#039;skip_header_footer&#039; =&gt; true,
				)
			);
		}

		$lp_upgrader = new Language_Pack_Upgrader( $skin );
		$lp_upgrader-&gt;bulk_upgrade( $language_updates );
	}

	/**
	 * Initializes the upgrade strings.
	 *
	 * @since 3.7.0
	 */
	public function upgrade_strings() {
		$this-&gt;strings[&#039;starting_upgrade&#039;] = __( &#039;Some of your translations need updating. Sit tight for a few more seconds while they are updated as well.&#039; );
		$this-&gt;strings[&#039;up_to_date&#039;]       = __( &#039;Your translations are all up to date.&#039; );
		$this-&gt;strings[&#039;no_package&#039;]       = __( &#039;Update package not available.&#039; );
		/* translators: %s: Package URL. */
		$this-&gt;strings[&#039;downloading_package&#039;] = sprintf( __( &#039;Downloading translation from %s&amp;#8230;&#039; ), &#039;&lt;span class=&quot;code pre&quot;&gt;%s&lt;/span&gt;&#039; );
		$this-&gt;strings[&#039;unpack_package&#039;]      = __( &#039;Unpacking the update&amp;#8230;&#039; );
		$this-&gt;strings[&#039;process_failed&#039;]      = __( &#039;Translation update failed.&#039; );
		$this-&gt;strings[&#039;process_success&#039;]     = __( &#039;Translation updated successfully.&#039; );
		$this-&gt;strings[&#039;remove_old&#039;]          = __( &#039;Removing the old version of the translation&amp;#8230;&#039; );
		$this-&gt;strings[&#039;remove_old_failed&#039;]   = __( &#039;Could not remove the old translation.&#039; );
	}

	/**
	 * Upgrades a language pack.
	 *
	 * @since 3.7.0
	 *
	 * @param string|false $update Optional. Whether an update offer is available. Default false.
	 * @param array        $args   Optional. Other optional arguments, see
	 *                             Language_Pack_Upgrader::bulk_upgrade(). Default empty array.
	 * @return array|bool|WP_Error The result of the upgrade, or a WP_Error object instead.
	 */
	public function upgrade( $update = false, $args = array() ) {
		if ( $update ) {
			$update = array( $update );
		}

		$results = $this-&gt;bulk_upgrade( $update, $args );

		if ( ! is_array( $results ) ) {
			return $results;
		}

		return $results[0];
	}

	/**
	 * Upgrades several language packs at once.
	 *
	 * @since 3.7.0
	 *
	 * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.
	 *
	 * @param object[] $language_updates Optional. Array of language packs to update. See {@see wp_get_translation_updates()}.
	 *                                   Default empty array.
	 * @param array    $args {
	 *     Other arguments for upgrading multiple language packs. Default empty array.
	 *
	 *     @type bool $clear_update_cache Whether to clear the update cache when done.
	 *                                    Default true.
	 * }
	 * @return array|bool|WP_Error Will return an array of results, or true if there are no updates,
	 *                             false or WP_Error for initial errors.
	 */
	public function bulk_upgrade( $language_updates = array(), $args = array() ) {
		global $wp_filesystem;

		$defaults    = array(
			&#039;clear_update_cache&#039; =&gt; true,
		);
		$parsed_args = wp_parse_args( $args, $defaults );

		$this-&gt;init();
		$this-&gt;upgrade_strings();

		if ( ! $language_updates ) {
			$language_updates = wp_get_translation_updates();
		}

		if ( empty( $language_updates ) ) {
			$this-&gt;skin-&gt;header();
			$this-&gt;skin-&gt;set_result( true );
			$this-&gt;skin-&gt;feedback( &#039;up_to_date&#039; );
			$this-&gt;skin-&gt;bulk_footer();
			$this-&gt;skin-&gt;footer();
			return true;
		}

		if ( &#039;upgrader_process_complete&#039; === current_filter() ) {
			$this-&gt;skin-&gt;feedback( &#039;starting_upgrade&#039; );
		}

		// Remove any existing upgrade filters from the plugin/theme upgraders #WP29425 &amp; #WP29230.
		remove_all_filters( &#039;upgrader_pre_install&#039; );
		remove_all_filters( &#039;upgrader_clear_destination&#039; );
		remove_all_filters( &#039;upgrader_post_install&#039; );
		remove_all_filters( &#039;upgrader_source_selection&#039; );

		add_filter( &#039;upgrader_source_selection&#039;, array( $this, &#039;check_package&#039; ), 10, 2 );

		$this-&gt;skin-&gt;header();

		// Connect to the filesystem first.
		$res = $this-&gt;fs_connect( array( WP_CONTENT_DIR, WP_LANG_DIR ) );
		if ( ! $res ) {
			$this-&gt;skin-&gt;footer();
			return false;
		}

		$results = array();

		$this-&gt;update_count   = count( $language_updates );
		$this-&gt;update_current = 0;

		/*
		 * The filesystem&#039;s mkdir() is not recursive. Make sure WP_LANG_DIR exists,
		 * as we then may need to create a /plugins or /themes directory inside of it.
		 */
		$remote_destination = $wp_filesystem-&gt;find_folder( WP_LANG_DIR );
		if ( ! $wp_filesystem-&gt;exists( $remote_destination ) ) {
			if ( ! $wp_filesystem-&gt;mkdir( $remote_destination, FS_CHMOD_DIR ) ) {
				return new WP_Error( &#039;mkdir_failed_lang_dir&#039;, $this-&gt;strings[&#039;mkdir_failed&#039;], $remote_destination );
			}
		}

		$language_updates_results = array();

		foreach ( $language_updates as $language_update ) {

			$this-&gt;skin-&gt;language_update = $language_update;

			$destination = WP_LANG_DIR;
			if ( &#039;plugin&#039; === $language_update-&gt;type ) {
				$destination .= &#039;/plugins&#039;;
			} elseif ( &#039;theme&#039; === $language_update-&gt;type ) {
				$destination .= &#039;/themes&#039;;
			}

			++$this-&gt;update_current;

			$options = array(
				&#039;package&#039;                     =&gt; $language_update-&gt;package,
				&#039;destination&#039;                 =&gt; $destination,
				&#039;clear_destination&#039;           =&gt; true,
				&#039;abort_if_destination_exists&#039; =&gt; false, // We expect the destination to exist.
				&#039;clear_working&#039;               =&gt; true,
				&#039;is_multi&#039;                    =&gt; true,
				&#039;hook_extra&#039;                  =&gt; array(
					&#039;language_update_type&#039; =&gt; $language_update-&gt;type,
					&#039;language_update&#039;      =&gt; $language_update,
				),
			);

			$result = $this-&gt;run( $options );

			$results[] = $this-&gt;result;

			// Prevent credentials auth screen from displaying multiple times.
			if ( false === $result ) {
				break;
			}

			$language_updates_results[] = array(
				&#039;language&#039; =&gt; $language_update-&gt;language,
				&#039;type&#039;     =&gt; $language_update-&gt;type,
				&#039;slug&#039;     =&gt; $language_update-&gt;slug ?? &#039;default&#039;,
				&#039;version&#039;  =&gt; $language_update-&gt;version,
			);
		}

		// Remove upgrade hooks which are not required for translation updates.
		remove_action( &#039;upgrader_process_complete&#039;, array( &#039;Language_Pack_Upgrader&#039;, &#039;async_upgrade&#039; ), 20 );
		remove_action( &#039;upgrader_process_complete&#039;, &#039;wp_version_check&#039; );
		remove_action( &#039;upgrader_process_complete&#039;, &#039;wp_update_plugins&#039; );
		remove_action( &#039;upgrader_process_complete&#039;, &#039;wp_update_themes&#039; );

		/** This action is documented in wp-admin/includes/class-wp-upgrader.php */
		do_action(
			&#039;upgrader_process_complete&#039;,
			$this,
			array(
				&#039;action&#039;       =&gt; &#039;update&#039;,
				&#039;type&#039;         =&gt; &#039;translation&#039;,
				&#039;bulk&#039;         =&gt; true,
				&#039;translations&#039; =&gt; $language_updates_results,
			)
		);

		// Re-add upgrade hooks.
		add_action( &#039;upgrader_process_complete&#039;, array( &#039;Language_Pack_Upgrader&#039;, &#039;async_upgrade&#039; ), 20 );
		add_action( &#039;upgrader_process_complete&#039;, &#039;wp_version_check&#039;, 10, 0 );
		add_action( &#039;upgrader_process_complete&#039;, &#039;wp_update_plugins&#039;, 10, 0 );
		add_action( &#039;upgrader_process_complete&#039;, &#039;wp_update_themes&#039;, 10, 0 );

		$this-&gt;skin-&gt;bulk_footer();

		$this-&gt;skin-&gt;footer();

		// Clean up our hooks, in case something else does an upgrade on this connection.
		remove_filter( &#039;upgrader_source_selection&#039;, array( $this, &#039;check_package&#039; ) );

		if ( $parsed_args[&#039;clear_update_cache&#039;] ) {
			wp_clean_update_cache();
		}

		return $results;
	}

	/**
	 * Checks that the package source contains .mo and .po files.
	 *
	 * Hooked to the {@see &#039;upgrader_source_selection&#039;} filter by
	 * Language_Pack_Upgrader::bulk_upgrade().
	 *
	 * @since 3.7.0
	 *
	 * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.
	 *
	 * @param string|WP_Error $source        The path to the downloaded package source.
	 * @param string          $remote_source Remote file source location.
	 * @return string|WP_Error The source as passed, or a WP_Error object on failure.
	 */
	public function check_package( $source, $remote_source ) {
		global $wp_filesystem;

		if ( is_wp_error( $source ) ) {
			return $source;
		}

		// Check that the folder contains a valid language.
		$files = $wp_filesystem-&gt;dirlist( $remote_source );

		// Check to see if the expected files exist in the folder.
		$po  = false;
		$mo  = false;
		$php = false;
		foreach ( (array) $files as $file =&gt; $filedata ) {
			if ( str_ends_with( $file, &#039;.po&#039; ) ) {
				$po = true;
			} elseif ( str_ends_with( $file, &#039;.mo&#039; ) ) {
				$mo = true;
			} elseif ( str_ends_with( $file, &#039;.l10n.php&#039; ) ) {
				$php = true;
			}
		}

		if ( $php ) {
			return $source;
		}

		if ( ! $mo || ! $po ) {
			return new WP_Error(
				&#039;incompatible_archive_pomo&#039;,
				$this-&gt;strings[&#039;incompatible_archive&#039;],
				sprintf(
					/* translators: 1: .po, 2: .mo, 3: .l10n.php */
					__( &#039;The language pack is missing either the %1$s, %2$s, or %3$s files.&#039; ),
					&#039;&lt;code&gt;.po&lt;/code&gt;&#039;,
					&#039;&lt;code&gt;.mo&lt;/code&gt;&#039;,
					&#039;&lt;code&gt;.l10n.php&lt;/code&gt;&#039;
				)
			);
		}

		return $source;
	}

	/**
	 * Gets the name of an item being updated.
	 *
	 * @since 3.7.0
	 *
	 * @param object $update The data for an update.
	 * @return string The name of the item being updated.
	 */
	public function get_name_for_update( $update ) {
		switch ( $update-&gt;type ) {
			case &#039;core&#039;:
				return &#039;WordPress&#039;; // Not translated.

			case &#039;theme&#039;:
				$theme = wp_get_theme( $update-&gt;slug );
				if ( $theme-&gt;exists() ) {
					return $theme-&gt;get( &#039;Name&#039; );
				}
				break;
			case &#039;plugin&#039;:
				$plugin_data = get_plugins( &#039;/&#039; . $update-&gt;slug );
				$plugin_data = reset( $plugin_data );
				if ( $plugin_data ) {
					return $plugin_data[&#039;Name&#039;];
				}
				break;
		}
		return &#039;&#039;;
	}

	/**
	 * Clears existing translations where this item is going to be installed into.
	 *
	 * @since 5.1.0
	 *
	 * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.
	 *
	 * @param string $remote_destination The location on the remote filesystem to be cleared.
	 * @return bool|WP_Error True upon success, WP_Error on failure.
	 */
	public function clear_destination( $remote_destination ) {
		global $wp_filesystem;

		$language_update    = $this-&gt;skin-&gt;language_update;
		$language_directory = WP_LANG_DIR . &#039;/&#039;; // Local path for use with glob().

		if ( &#039;core&#039; === $language_update-&gt;type ) {
			$files = array(
				$remote_destination . $language_update-&gt;language . &#039;.po&#039;,
				$remote_destination . $language_update-&gt;language . &#039;.mo&#039;,
				$remote_destination . $language_update-&gt;language . &#039;.l10n.php&#039;,
				$remote_destination . &#039;admin-&#039; . $language_update-&gt;language . &#039;.po&#039;,
				$remote_destination . &#039;admin-&#039; . $language_update-&gt;language . &#039;.mo&#039;,
				$remote_destination . &#039;admin-&#039; . $language_update-&gt;language . &#039;.l10n.php&#039;,
				$remote_destination . &#039;admin-network-&#039; . $language_update-&gt;language . &#039;.po&#039;,
				$remote_destination . &#039;admin-network-&#039; . $language_update-&gt;language . &#039;.mo&#039;,
				$remote_destination . &#039;admin-network-&#039; . $language_update-&gt;language . &#039;.l10n.php&#039;,
				$remote_destination . &#039;continents-cities-&#039; . $language_update-&gt;language . &#039;.po&#039;,
				$remote_destination . &#039;continents-cities-&#039; . $language_update-&gt;language . &#039;.mo&#039;,
				$remote_destination . &#039;continents-cities-&#039; . $language_update-&gt;language . &#039;.l10n.php&#039;,
			);

			$json_translation_files = glob( $language_directory . $language_update-&gt;language . &#039;-*.json&#039; );
			if ( $json_translation_files ) {
				foreach ( $json_translation_files as $json_translation_file ) {
					$files[] = str_replace( $language_directory, $remote_destination, $json_translation_file );
				}
			}
		} else {
			$files = array(
				$remote_destination . $language_update-&gt;slug . &#039;-&#039; . $language_update-&gt;language . &#039;.po&#039;,
				$remote_destination . $language_update-&gt;slug . &#039;-&#039; . $language_update-&gt;language . &#039;.mo&#039;,
				$remote_destination . $language_update-&gt;slug . &#039;-&#039; . $language_update-&gt;language . &#039;.l10n.php&#039;,
			);

			$language_directory     = $language_directory . $language_update-&gt;type . &#039;s/&#039;;
			$json_translation_files = glob( $language_directory . $language_update-&gt;slug . &#039;-&#039; . $language_update-&gt;language . &#039;-*.json&#039; );
			if ( $json_translation_files ) {
				foreach ( $json_translation_files as $json_translation_file ) {
					$files[] = str_replace( $language_directory, $remote_destination, $json_translation_file );
				}
			}
		}

		$files = array_filter( $files, array( $wp_filesystem, &#039;exists&#039; ) );

		// No files to delete.
		if ( ! $files ) {
			return true;
		}

		// Check all files are writable before attempting to clear the destination.
		$unwritable_files = array();

		// Check writability.
		foreach ( $files as $file ) {
			if ( ! $wp_filesystem-&gt;is_writable( $file ) ) {
				// Attempt to alter permissions to allow writes and try again.
				$wp_filesystem-&gt;chmod( $file, FS_CHMOD_FILE );
				if ( ! $wp_filesystem-&gt;is_writable( $file ) ) {
					$unwritable_files[] = $file;
				}
			}
		}

		if ( ! empty( $unwritable_files ) ) {
			return new WP_Error( &#039;files_not_writable&#039;, $this-&gt;strings[&#039;files_not_writable&#039;], implode( &#039;, &#039;, $unwritable_files ) );
		}

		foreach ( $files as $file ) {
			if ( ! $wp_filesystem-&gt;delete( $file ) ) {
				return new WP_Error( &#039;remove_old_failed&#039;, $this-&gt;strings[&#039;remove_old_failed&#039;] );
			}
		}

		return true;
	}
}
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