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<?php
namespace WPForms\Helpers;
/**
* Template related helper methods.
*
* @since 1.5.4
*/
class Templates {
/**
* Return a list of paths to check for template locations
*
* @since 1.5.4
*
* @return array
*/
public static function get_theme_template_paths() {
$template_dir = 'wpforms';
$file_paths = [
1 => trailingslashit( get_stylesheet_directory() ) . $template_dir,
10 => trailingslashit( get_template_directory() ) . $template_dir,
200 => trailingslashit( WPFORMS_PLUGIN_DIR ) . 'templates',
];
$file_paths = \apply_filters( 'wpforms_helpers_templates_get_theme_template_paths', $file_paths );
// Sort the file paths based on priority.
\ksort( $file_paths, SORT_NUMERIC );
return \array_map( 'trailingslashit', $file_paths );
}
/**
* Locate a template and return the path for inclusion.
*
* @since 1.5.4
*
* @param string $template_name Template name.
*
* @return string
*/
public static function locate( $template_name ) {
// Trim off any slashes from the template name.
$template_name = \ltrim( $template_name, '/' );
if ( empty( $template_name ) ) {
return \apply_filters( 'wpforms_helpers_templates_locate', '', $template_name );
}
$located = '';
// Try locating this template file by looping through the template paths.
foreach ( self::get_theme_template_paths() as $template_path ) {
if ( \file_exists( $template_path . $template_name ) ) {
$located = $template_path . $template_name;
break;
}
}
return \apply_filters( 'wpforms_helpers_templates_locate', $located, $template_name );
}
/**
* Include a template.
* Use 'require' if $args are passed or 'load_template' if not.
*
* @since 1.5.4
*
* @param string $template_name Template name.
* @param array $args Arguments.
* @param bool $extract Extract arguments.
*
* @throws \RuntimeException If extract() tries to modify the scope.
*/
public static function include_html( $template_name, $args = [], $extract = false ) {
$template_name .= '.php';
// Allow 3rd party plugins to filter template file from their plugin.
$located = \apply_filters( 'wpforms_helpers_templates_include_html_located', self::locate( $template_name ), $template_name, $args, $extract );
$args = \apply_filters( 'wpforms_helpers_templates_include_html_args', $args, $template_name, $extract );
if ( empty( $located ) || ! \is_readable( $located ) ) {
return;
}
// Load template WP way if no arguments were passed.
if ( empty( $args ) ) {
\load_template( $located, false );
return;
}
$extract = \apply_filters( 'wpforms_helpers_templates_include_html_extract_args', $extract, $template_name, $args );
if ( $extract && \is_array( $args ) ) {
$created_vars_count = extract( $args, EXTR_SKIP ); // phpcs:ignore WordPress.PHP.DontExtract
// Protecting existing scope from modification.
if ( count( $args ) !== $created_vars_count ) {
throw new \RuntimeException( 'Extraction failed: variable names are clashing with the existing ones.' );
}
}
require $located;
}
/**
* Like self::include_html, but returns the HTML instead of including.
*
* @since 1.5.4
*
* @param string $template_name Template name.
* @param array $args Arguments.
* @param bool $extract Extract arguments.
*
* @return string
*/
public static function get_html( $template_name, $args = [], $extract = false ) {
\ob_start();
self::include_html( $template_name, $args, $extract );
return \ob_get_clean();
}
/**
* Validate that a file path is safe and within the expected path(s).
*
* Author Scott Kingsley Clark, Pods Framework.
* Refactored to reduce cyclomatic complexity.
*
* @since 1.7.5.5
*
* @link https://github.com/pods-framework/pods/commit/ea53471e58e638dec06957edc38f9fa86607652c
*
* @param string $path The file path.
* @param null|array|string $paths_to_check The list of path types to check, defaults to just checking 'wpforms'.
* Available: 'wpforms', 'plugins', 'theme',
* or 'all' to check all supported paths.
*
* @return false|string False if the path was not allowed or did not exist, otherwise it returns the normalized path.
*/
public static function validate_safe_path( $path, $paths_to_check = null ) {
static $available_checks;
if ( ! $available_checks ) {
$available_checks = [
'wpforms' => realpath( WPFORMS_PLUGIN_DIR ),
'plugins' => [
realpath( WP_PLUGIN_DIR ),
realpath( WPMU_PLUGIN_DIR ),
],
'theme' => [
realpath( get_stylesheet_directory() ),
realpath( get_template_directory() ),
],
];
$available_checks['plugins'] = array_unique( array_filter( $available_checks['plugins'] ) );
$available_checks['theme'] = array_unique( array_filter( $available_checks['theme'] ) );
$available_checks = array_filter( $available_checks );
}
$paths_to_check = $paths_to_check === null ? [ 'wpforms' ] : $paths_to_check;
$paths_to_check = $paths_to_check === 'all' ? array_keys( $available_checks ) : $paths_to_check;
$paths_to_check = (array) $paths_to_check;
if ( empty( $paths_to_check ) ) {
return false;
}
$path = wp_normalize_path( trim( (string) $path ) );
$match_count = 1;
// Replace the ../ usage as many times as it may need to be replaced.
while ( $match_count ) {
$path = str_replace( '../', '', $path, $match_count );
}
$path = realpath( $path );
foreach ( $paths_to_check as $check_type ) {
if ( self::has_match( $path, $available_checks, $check_type ) ) {
return $path;
}
}
return false;
}
/**
* Whether path matches.
*
* @since 1.7.5.5
*
* @param string|bool $path Path.
* @param array $available_checks Available checks.
* @param string $check_type Check type.
*
* @return bool
*/
private static function has_match( $path, $available_checks, $check_type ) {
if ( ! $path || ! isset( $available_checks[ $check_type ] ) ) {
return false;
}
$check_type_paths = (array) $available_checks[ $check_type ];
foreach ( $check_type_paths as $path_to_check ) {
if ( 0 === strpos( $path, $path_to_check ) && file_exists( $path ) ) {
return true;
}
}
return false;
}
}
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