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<?php

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class WPML_Slash_Management {

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public function match_trailing_slash_to_reference( $url, $reference_url ) {

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if ( trailingslashit( $reference_url ) === $reference_url && ! $this->has_lang_param( $url ) ) {

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return trailingslashit( $url );

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} else {

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return untrailingslashit( $url );

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}

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}

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/**

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* @param string $url

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* @return bool

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private function has_lang_param( $url ) {

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return strpos( $url, '?lang=' ) !== false || strpos( $url, '&lang=' ) !== false;

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}

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/**

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* @param string $url

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* @param string $method Deprecated.

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* @return mixed|string

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public function maybe_user_trailingslashit( $url, $method = '' ) {

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$url_parts = wpml_parse_url( $url );

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if ( ! $url_parts ) {

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return $url;

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}

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$url_parts = $this->parse_missing_host_from_path( $url_parts );

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if ( $this->is_root_url_with_trailingslash( $url_parts )

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|| $this->is_root_url_without_trailingslash_and_without_query_args( $url_parts )

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) {

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return $url;

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}

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$path = isset( $url_parts['path'] ) ? $url_parts['path'] : '';

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if ( ! $path && isset( $url_parts['query'] ) ) {

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$url_parts['path'] = '/';

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} elseif ( $this->is_file_path( $path ) ) {

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$url_parts['path'] = untrailingslashit( $path );

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} elseif ( $method ) {

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$url_parts['path'] = 'untrailingslashit' === $method ? untrailingslashit( $path ) : trailingslashit( $path );

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} else {

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$url_parts['path'] = $this->user_trailingslashit( $path );

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}

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return http_build_url( $url_parts );

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}

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/**

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* Follows the logic of WordPress core user_trailingslashit().

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* Can be called on plugins_loaded event, when $wp_rewrite is not set yet.

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* @param $path

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* @return string

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private function user_trailingslashit( $path ) {

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global $wp_rewrite;

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if ( $wp_rewrite ) {

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return user_trailingslashit( $path );

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}

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$permalink_structure = get_option( 'permalink_structure' );

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$use_trailing_slashes = ( '/' === substr( $permalink_structure, - 1, 1 ) );

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if ( $use_trailing_slashes ) {

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$path = trailingslashit( $path );

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} else {

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$path = untrailingslashit( $path );

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}

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return apply_filters( 'user_trailingslashit', $path, '' );

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}

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/**

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* @param array $url_parts

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* @return bool

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private function is_root_url_without_trailingslash_and_without_query_args( array $url_parts ) {

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return ! isset( $url_parts['path'] ) && ! isset( $url_parts['query'] );

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}

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/**

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* @param array $url_parts

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* @return bool

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private function is_root_url_with_trailingslash( array $url_parts ) {

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return isset( $url_parts['path'] ) && '/' === $url_parts['path'];

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}

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/**

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* @see Test_WPML_Lang_Domains_Converter::check_domains_and_subdir

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* @param array $url_parts

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* @return array

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public function parse_missing_host_from_path( array $url_parts ) {

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if ( ! isset( $url_parts['host'] ) && isset( $url_parts['path'] ) ) {

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$domain_and_subdir = explode( '/', $url_parts['path'] );

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$domain = $domain_and_subdir[0];

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$url_parts['host'] = $domain;

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array_shift( $domain_and_subdir );

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if ( $domain_and_subdir ) {

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$url_parts['path'] = preg_replace( '/^(' . $url_parts['host'] . ')/', '', $url_parts['path'] );

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} else {

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unset( $url_parts['path'] );

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}

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}

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return $url_parts;

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}

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/**

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* @param string $path

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* @return bool

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private function is_file_path( $path ) {

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$pathinfo = pathinfo( $path );

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return isset( $pathinfo['extension'] ) && $pathinfo['extension'];

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}

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}

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