Theme_Installer_Skin::do_overwrite() │ private │ WP 5.5.0
Checks if the theme can be overwritten and outputs the HTML for overwriting a theme on upload.
Method of the class: Theme_Installer_Skin{}
Hooks from the method
Return
true|false. Whether the theme can be overwritten and HTML was outputted.
Usage
// private - for code of main (parent) class only $result = $this->do_overwrite();
Changelog
| Since 5.5.0 | Introduced. |
Theme_Installer_Skin::do_overwrite() Theme Installer Skin::do overwrite code WP 6.5.2
private function do_overwrite() {
if ( 'upload' !== $this->type || ! is_wp_error( $this->result ) || 'folder_exists' !== $this->result->get_error_code() ) {
return false;
}
$folder = $this->result->get_error_data( 'folder_exists' );
$folder = rtrim( $folder, '/' );
$current_theme_data = false;
$all_themes = wp_get_themes( array( 'errors' => null ) );
foreach ( $all_themes as $theme ) {
$stylesheet_dir = wp_normalize_path( $theme->get_stylesheet_directory() );
if ( rtrim( $stylesheet_dir, '/' ) !== $folder ) {
continue;
}
$current_theme_data = $theme;
}
$new_theme_data = $this->upgrader->new_theme_data;
if ( ! $current_theme_data || ! $new_theme_data ) {
return false;
}
echo '<h2 class="update-from-upload-heading">' . esc_html__( 'This theme is already installed.' ) . '</h2>';
// Check errors for active theme.
if ( is_wp_error( $current_theme_data->errors() ) ) {
$this->feedback( 'current_theme_has_errors', $current_theme_data->errors()->get_error_message() );
}
$this->is_downgrading = version_compare( $current_theme_data['Version'], $new_theme_data['Version'], '>' );
$is_invalid_parent = false;
if ( ! empty( $new_theme_data['Template'] ) ) {
$is_invalid_parent = ! in_array( $new_theme_data['Template'], array_keys( $all_themes ), true );
}
$rows = array(
'Name' => __( 'Theme name' ),
'Version' => __( 'Version' ),
'Author' => __( 'Author' ),
'RequiresWP' => __( 'Required WordPress version' ),
'RequiresPHP' => __( 'Required PHP version' ),
'Template' => __( 'Parent theme' ),
);
$table = '<table class="update-from-upload-comparison"><tbody>';
$table .= '<tr><th></th><th>' . esc_html_x( 'Active', 'theme' ) . '</th><th>' . esc_html_x( 'Uploaded', 'theme' ) . '</th></tr>';
$is_same_theme = true; // Let's consider only these rows.
foreach ( $rows as $field => $label ) {
$old_value = $current_theme_data->display( $field, false );
$old_value = $old_value ? (string) $old_value : '-';
$new_value = ! empty( $new_theme_data[ $field ] ) ? (string) $new_theme_data[ $field ] : '-';
if ( $old_value === $new_value && '-' === $new_value && 'Template' === $field ) {
continue;
}
$is_same_theme = $is_same_theme && ( $old_value === $new_value );
$diff_field = ( 'Version' !== $field && $new_value !== $old_value );
$diff_version = ( 'Version' === $field && $this->is_downgrading );
$invalid_parent = false;
if ( 'Template' === $field && $is_invalid_parent ) {
$invalid_parent = true;
$new_value .= ' ' . __( '(not found)' );
}
$table .= '<tr><td class="name-label">' . $label . '</td><td>' . wp_strip_all_tags( $old_value ) . '</td>';
$table .= ( $diff_field || $diff_version || $invalid_parent ) ? '<td class="warning">' : '<td>';
$table .= wp_strip_all_tags( $new_value ) . '</td></tr>';
}
$table .= '</tbody></table>';
/**
* Filters the compare table output for overwriting a theme package on upload.
*
* @since 5.5.0
*
* @param string $table The output table with Name, Version, Author, RequiresWP, and RequiresPHP info.
* @param WP_Theme $current_theme_data Active theme data.
* @param array $new_theme_data Array with uploaded theme data.
*/
echo apply_filters( 'install_theme_overwrite_comparison', $table, $current_theme_data, $new_theme_data );
$install_actions = array();
$can_update = true;
$blocked_message = '<p>' . esc_html__( 'The theme cannot be updated due to the following:' ) . '</p>';
$blocked_message .= '<ul class="ul-disc">';
$requires_php = isset( $new_theme_data['RequiresPHP'] ) ? $new_theme_data['RequiresPHP'] : null;
$requires_wp = isset( $new_theme_data['RequiresWP'] ) ? $new_theme_data['RequiresWP'] : null;
if ( ! is_php_version_compatible( $requires_php ) ) {
$error = sprintf(
/* translators: 1: Current PHP version, 2: Version required by the uploaded theme. */
__( 'The PHP version on your server is %1$s, however the uploaded theme requires %2$s.' ),
PHP_VERSION,
$requires_php
);
$blocked_message .= '<li>' . esc_html( $error ) . '</li>';
$can_update = false;
}
if ( ! is_wp_version_compatible( $requires_wp ) ) {
$error = sprintf(
/* translators: 1: Current WordPress version, 2: Version required by the uploaded theme. */
__( 'Your WordPress version is %1$s, however the uploaded theme requires %2$s.' ),
get_bloginfo( 'version' ),
$requires_wp
);
$blocked_message .= '<li>' . esc_html( $error ) . '</li>';
$can_update = false;
}
$blocked_message .= '</ul>';
if ( $can_update ) {
if ( $this->is_downgrading ) {
$warning = sprintf(
/* translators: %s: Documentation URL. */
__( 'You are uploading an older version of the active theme. You can continue to install the older version, but be sure to <a href="%s">back up your database and files</a> first.' ),
__( 'https://wordpress.org/documentation/article/wordpress-backups/' )
);
} else {
$warning = sprintf(
/* translators: %s: Documentation URL. */
__( 'You are updating a theme. Be sure to <a href="%s">back up your database and files</a> first.' ),
__( 'https://wordpress.org/documentation/article/wordpress-backups/' )
);
}
echo '<p class="update-from-upload-notice">' . $warning . '</p>';
$overwrite = $this->is_downgrading ? 'downgrade-theme' : 'update-theme';
$install_actions['overwrite_theme'] = sprintf(
'<a class="button button-primary update-from-upload-overwrite" href="%s" target="_parent">%s</a>',
wp_nonce_url( add_query_arg( 'overwrite', $overwrite, $this->url ), 'theme-upload' ),
_x( 'Replace active with uploaded', 'theme' )
);
} else {
echo $blocked_message;
}
$cancel_url = add_query_arg( 'action', 'upload-theme-cancel-overwrite', $this->url );
$install_actions['themes_page'] = sprintf(
'<a class="button" href="%s" target="_parent">%s</a>',
wp_nonce_url( $cancel_url, 'theme-upload-cancel-overwrite' ),
__( 'Cancel and go back' )
);
/**
* Filters the list of action links available following a single theme installation failure
* when overwriting is allowed.
*
* @since 5.5.0
*
* @param string[] $install_actions Array of theme action links.
* @param object $api Object containing WordPress.org API theme data.
* @param array $new_theme_data Array with uploaded theme data.
*/
$install_actions = apply_filters( 'install_theme_overwrite_actions', $install_actions, $this->api, $new_theme_data );
if ( ! empty( $install_actions ) ) {
printf(
'<p class="update-from-upload-expired hidden">%s</p>',
__( 'The uploaded file has expired. Please go back and upload it again.' )
);
echo '<p class="update-from-upload-actions">' . implode( ' ', (array) $install_actions ) . '</p>';
}
return true;
}