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<?php
/**
* Upgrader API: WP_Upgrader_Skin class
*
* @package WordPress
* @subpackage Upgrader
* @since 4.6.0
*/
/**
* Generic Skin for the WordPress Upgrader classes. This skin is designed to be extended for specific purposes.
*
* @since 2.8.0
* @since 4.6.0 Moved to its own file from wp-admin/includes/class-wp-upgrader-skins.php.
*/
#[AllowDynamicProperties]
class WP_Upgrader_Skin {
/**
* Holds the upgrader data.
*
* @since 2.8.0
* @var WP_Upgrader
*/
public $upgrader;
/**
* Whether header is done.
*
* @since 2.8.0
* @var bool
*/
public $done_header = false;
/**
* Whether footer is done.
*
* @since 2.8.0
* @var bool
*/
public $done_footer = false;
/**
* Holds the result of an upgrade.
*
* @since 2.8.0
* @var string|bool|WP_Error
*/
public $result = false;
/**
* Holds the options of an upgrade.
*
* @since 2.8.0
* @var array
*/
public $options = array();
/**
* Constructor.
*
* Sets up the generic skin for the WordPress Upgrader classes.
*
* @since 2.8.0
*
* @param array $args Optional. The WordPress upgrader skin arguments to
* override default options. Default empty array.
*/
public function __construct( $args = array() ) {
$defaults = array(
'url' => '',
'nonce' => '',
'title' => '',
'context' => false,
);
$this->options = wp_parse_args( $args, $defaults );
}
/**
* Sets the relationship between the skin being used and the upgrader.
*
* @since 2.8.0
*
* @param WP_Upgrader $upgrader
*/
public function set_upgrader( &$upgrader ) {
if ( is_object( $upgrader ) ) {
$this->upgrader =& $upgrader;
}
$this->add_strings();
}
/**
* Sets up the strings used in the update process.
*
* @since 3.0.0
*/
public function add_strings() {
}
/**
* Sets the result of an upgrade.
*
* @since 2.8.0
*
* @param string|bool|WP_Error $result The result of an upgrade.
*/
public function set_result( $result ) {
$this->result = $result;
}
/**
* Displays a form to the user to request for their FTP/SSH details in order
* to connect to the filesystem.
*
* @since 2.8.0
* @since 4.6.0 The `$context` parameter default changed from `false` to an empty string.
*
* @see request_filesystem_credentials()
*
* @param bool|WP_Error $error Optional. Whether the current request has failed to connect,
* or an error object. Default false.
* @param string $context Optional. Full path to the directory that is tested
* for being writable. Default empty.
* @param bool $allow_relaxed_file_ownership Optional. Whether to allow Group/World writable. Default false.
* @return bool True on success, false on failure.
*/
public function request_filesystem_credentials( $error = false, $context = '', $allow_relaxed_file_ownership = false ) {
$url = $this->options['url'];
if ( ! $context ) {
$context = $this->options['context'];
}
if ( ! empty( $this->options['nonce'] ) ) {
$url = wp_nonce_url( $url, $this->options['nonce'] );
}
$extra_fields = array();
return request_filesystem_credentials( $url, '', $error, $context, $extra_fields, $allow_relaxed_file_ownership );
}
/**
* Displays the header before the update process.
*
* @since 2.8.0
*/
public function header() {
if ( $this->done_header ) {
return;
}
$this->done_header = true;
echo '<div class="wrap">';
echo '<h1>' . $this->options['title'] . '</h1>';
}
/**
* Displays the footer following the update process.
*
* @since 2.8.0
*/
public function footer() {
if ( $this->done_footer ) {
return;
}
$this->done_footer = true;
echo '</div>';
}
/**
* Displays an error message about the update.
*
* @since 2.8.0
*
* @param string|WP_Error $errors Errors.
*/
public function error( $errors ) {
if ( ! $this->done_header ) {
$this->header();
}
if ( is_string( $errors ) ) {
$this->feedback( $errors );
} elseif ( is_wp_error( $errors ) && $errors->has_errors() ) {
foreach ( $errors->get_error_messages() as $message ) {
if ( $errors->get_error_data() && is_string( $errors->get_error_data() ) ) {
$this->feedback( $message . ' ' . esc_html( strip_tags( $errors->get_error_data() ) ) );
} else {
$this->feedback( $message );
}
}
}
}
/**
* Displays a message about the update.
*
* @since 2.8.0
* @since 5.9.0 Renamed `$string` (a PHP reserved keyword) to `$feedback` for PHP 8 named parameter support.
*
* @param string $feedback Message data.
* @param mixed ...$args Optional text replacements.
*/
public function feedback( $feedback, ...$args ) {
if ( isset( $this->upgrader->strings[ $feedback ] ) ) {
$feedback = $this->upgrader->strings[ $feedback ];
}
if ( str_contains( $feedback, '%' ) ) {
if ( $args ) {
$args = array_map( 'strip_tags', $args );
$args = array_map( 'esc_html', $args );
$feedback = vsprintf( $feedback, $args );
}
}
if ( empty( $feedback ) ) {
return;
}
show_message( $feedback );
}
/**
* Performs an action before an update.
*
* @since 2.8.0
*/
public function before() {}
/**
* Performs an action following an update.
*
* @since 2.8.0
*/
public function after() {}
/**
* Outputs JavaScript that calls function to decrement the update counts.
*
* @since 3.9.0
*
* @param string $type Type of update count to decrement. Likely values include 'plugin',
* 'theme', 'translation', etc.
*/
protected function decrement_update_count( $type ) {
if ( ! $this->result || is_wp_error( $this->result ) || 'up_to_date' === $this->result ) {
return;
}
if ( defined( 'IFRAME_REQUEST' ) ) {
echo '<script type="text/javascript">
if ( window.postMessage && JSON ) {
window.parent.postMessage(
JSON.stringify( {
action: "decrementUpdateCount",
upgradeType: "' . $type . '"
} ),
window.location.protocol + "//" + window.location.hostname
+ ( "" !== window.location.port ? ":" + window.location.port : "" )
);
}
</script>';
} else {
echo '<script type="text/javascript">
(function( wp ) {
if ( wp && wp.updates && wp.updates.decrementCount ) {
wp.updates.decrementCount( "' . $type . '" );
}
})( window.wp );
</script>';
}
}
/**
* Displays the header before the bulk update process.
*
* @since 3.0.0
*/
public function bulk_header() {}
/**
* Displays the footer following the bulk update process.
*
* @since 3.0.0
*/
public function bulk_footer() {}
/**
* Hides the `process_failed` error message when updating by uploading a zip file.
*
* @since 5.5.0
*
* @param WP_Error $wp_error WP_Error object.
* @return bool True if the error should be hidden, false otherwise.
*/
public function hide_process_failed( $wp_error ) {
return false;
}
}