/wp-content/plugins/contact-form-7/includes/functions.php
PHP | 362 lines | 263 code | 91 blank | 8 comment | 48 complexity | 6dd8c83801fb910a85007cf70ffb71ce MD5 | raw file
Possible License(s): GPL-3.0, BSD-3-Clause, Apache-2.0, MIT
- <?php
- function wpcf7_plugin_path( $path = '' ) {
- return path_join( WPCF7_PLUGIN_DIR, trim( $path, '/' ) );
- }
- function wpcf7_plugin_url( $path = '' ) {
- $url = plugins_url( $path, WPCF7_PLUGIN );
- if ( is_ssl() && 'http:' == substr( $url, 0, 5 ) ) {
- $url = 'https:' . substr( $url, 5 );
- }
- return $url;
- }
- function wpcf7_upload_dir( $type = false ) {
- $uploads = wp_get_upload_dir();
- $uploads = apply_filters( 'wpcf7_upload_dir', array(
- 'dir' => $uploads['basedir'],
- 'url' => $uploads['baseurl'] ) );
- if ( 'dir' == $type ) {
- return $uploads['dir'];
- } if ( 'url' == $type ) {
- return $uploads['url'];
- }
- return $uploads;
- }
- function wpcf7_verify_nonce( $nonce, $action = -1 ) {
- if ( substr( wp_hash( $action, 'nonce' ), -12, 10 ) == $nonce ) {
- return true;
- }
- return false;
- }
- function wpcf7_create_nonce( $action = -1 ) {
- return substr( wp_hash( $action, 'nonce' ), -12, 10 );
- }
- function wpcf7_blacklist_check( $target ) {
- $mod_keys = trim( get_option( 'blacklist_keys' ) );
- if ( empty( $mod_keys ) ) {
- return false;
- }
- $words = explode( "\n", $mod_keys );
- foreach ( (array) $words as $word ) {
- $word = trim( $word );
- if ( empty( $word ) || 256 < strlen( $word ) ) {
- continue;
- }
- $pattern = sprintf( '#%s#i', preg_quote( $word, '#' ) );
- if ( preg_match( $pattern, $target ) ) {
- return true;
- }
- }
- return false;
- }
- function wpcf7_array_flatten( $input ) {
- if ( ! is_array( $input ) ) {
- return array( $input );
- }
- $output = array();
- foreach ( $input as $value ) {
- $output = array_merge( $output, wpcf7_array_flatten( $value ) );
- }
- return $output;
- }
- function wpcf7_flat_join( $input ) {
- $input = wpcf7_array_flatten( $input );
- $output = array();
- foreach ( (array) $input as $value ) {
- $output[] = trim( (string) $value );
- }
- return implode( ', ', $output );
- }
- function wpcf7_support_html5() {
- return (bool) apply_filters( 'wpcf7_support_html5', true );
- }
- function wpcf7_support_html5_fallback() {
- return (bool) apply_filters( 'wpcf7_support_html5_fallback', false );
- }
- function wpcf7_use_really_simple_captcha() {
- return apply_filters( 'wpcf7_use_really_simple_captcha',
- WPCF7_USE_REALLY_SIMPLE_CAPTCHA );
- }
- function wpcf7_validate_configuration() {
- return apply_filters( 'wpcf7_validate_configuration',
- WPCF7_VALIDATE_CONFIGURATION );
- }
- function wpcf7_load_js() {
- return apply_filters( 'wpcf7_load_js', WPCF7_LOAD_JS );
- }
- function wpcf7_load_css() {
- return apply_filters( 'wpcf7_load_css', WPCF7_LOAD_CSS );
- }
- function wpcf7_format_atts( $atts ) {
- $html = '';
- $prioritized_atts = array( 'type', 'name', 'value' );
- foreach ( $prioritized_atts as $att ) {
- if ( isset( $atts[$att] ) ) {
- $value = trim( $atts[$att] );
- $html .= sprintf( ' %s="%s"', $att, esc_attr( $value ) );
- unset( $atts[$att] );
- }
- }
- foreach ( $atts as $key => $value ) {
- $key = strtolower( trim( $key ) );
- if ( ! preg_match( '/^[a-z_:][a-z_:.0-9-]*$/', $key ) ) {
- continue;
- }
- $value = trim( $value );
- if ( '' !== $value ) {
- $html .= sprintf( ' %s="%s"', $key, esc_attr( $value ) );
- }
- }
- $html = trim( $html );
- return $html;
- }
- function wpcf7_link( $url, $anchor_text, $args = '' ) {
- $defaults = array(
- 'id' => '',
- 'class' => '',
- );
- $args = wp_parse_args( $args, $defaults );
- $args = array_intersect_key( $args, $defaults );
- $atts = wpcf7_format_atts( $args );
- $link = sprintf( '<a href="%1$s"%3$s>%2$s</a>',
- esc_url( $url ),
- esc_html( $anchor_text ),
- $atts ? ( ' ' . $atts ) : '' );
- return $link;
- }
- function wpcf7_get_request_uri() {
- static $request_uri = '';
- if ( empty( $request_uri ) ) {
- $request_uri = add_query_arg( array() );
- }
- return esc_url_raw( $request_uri );
- }
- function wpcf7_register_post_types() {
- if ( class_exists( 'WPCF7_ContactForm' ) ) {
- WPCF7_ContactForm::register_post_type();
- return true;
- } else {
- return false;
- }
- }
- function wpcf7_version( $args = '' ) {
- $defaults = array(
- 'limit' => -1,
- 'only_major' => false );
- $args = wp_parse_args( $args, $defaults );
- if ( $args['only_major'] ) {
- $args['limit'] = 2;
- }
- $args['limit'] = (int) $args['limit'];
- $ver = WPCF7_VERSION;
- $ver = strtr( $ver, '_-+', '...' );
- $ver = preg_replace( '/[^0-9.]+/', ".$0.", $ver );
- $ver = preg_replace( '/[.]+/', ".", $ver );
- $ver = trim( $ver, '.' );
- $ver = explode( '.', $ver );
- if ( -1 < $args['limit'] ) {
- $ver = array_slice( $ver, 0, $args['limit'] );
- }
- $ver = implode( '.', $ver );
- return $ver;
- }
- function wpcf7_version_grep( $version, array $input ) {
- $pattern = '/^' . preg_quote( (string) $version, '/' ) . '(?:\.|$)/';
- return preg_grep( $pattern, $input );
- }
- function wpcf7_enctype_value( $enctype ) {
- $enctype = trim( $enctype );
- if ( empty( $enctype ) ) {
- return '';
- }
- $valid_enctypes = array(
- 'application/x-www-form-urlencoded',
- 'multipart/form-data',
- 'text/plain',
- );
- if ( in_array( $enctype, $valid_enctypes ) ) {
- return $enctype;
- }
- $pattern = '%^enctype="(' . implode( '|', $valid_enctypes ) . ')"$%';
- if ( preg_match( $pattern, $enctype, $matches ) ) {
- return $matches[1]; // for back-compat
- }
- return '';
- }
- function wpcf7_rmdir_p( $dir ) {
- if ( is_file( $dir ) ) {
- if ( ! $result = @unlink( $dir ) ) {
- $stat = @stat( $dir );
- $perms = $stat['mode'];
- @chmod( $dir, $perms | 0200 ); // add write for owner
- if ( ! $result = @unlink( $dir ) ) {
- @chmod( $dir, $perms );
- }
- }
- return $result;
- }
- if ( ! is_dir( $dir ) ) {
- return false;
- }
- if ( $handle = @opendir( $dir ) ) {
- while ( false !== ( $file = readdir( $handle ) ) ) {
- if ( $file == "." || $file == ".." ) {
- continue;
- }
- wpcf7_rmdir_p( path_join( $dir, $file ) );
- }
- closedir( $handle );
- }
- return @rmdir( $dir );
- }
- /* From _http_build_query in wp-includes/functions.php */
- function wpcf7_build_query( $args, $key = '' ) {
- $sep = '&';
- $ret = array();
- foreach ( (array) $args as $k => $v ) {
- $k = urlencode( $k );
- if ( ! empty( $key ) ) {
- $k = $key . '%5B' . $k . '%5D';
- }
- if ( null === $v ) {
- continue;
- } elseif ( false === $v ) {
- $v = '0';
- }
- if ( is_array( $v ) || is_object( $v ) ) {
- array_push( $ret, wpcf7_build_query( $v, $k ) );
- } else {
- array_push( $ret, $k . '=' . urlencode( $v ) );
- }
- }
- return implode( $sep, $ret );
- }
- /**
- * Returns the number of code units in a string.
- *
- * @see http://www.w3.org/TR/html5/infrastructure.html#code-unit-length
- *
- * @return int|bool The number of code units, or false if mb_convert_encoding is not available.
- */
- function wpcf7_count_code_units( $string ) {
- static $use_mb = null;
- if ( is_null( $use_mb ) ) {
- $use_mb = function_exists( 'mb_convert_encoding' );
- }
- if ( ! $use_mb ) {
- return false;
- }
- $string = (string) $string;
- $encoding = mb_detect_encoding( $string, mb_detect_order(), true );
- if ( $encoding ) {
- $string = mb_convert_encoding( $string, 'UTF-16', $encoding );
- } else {
- $string = mb_convert_encoding( $string, 'UTF-16', 'UTF-8' );
- }
- $byte_count = mb_strlen( $string, '8bit' );
- return floor( $byte_count / 2 );
- }
- function wpcf7_is_localhost() {
- $server_name = strtolower( $_SERVER['SERVER_NAME'] );
- return in_array( $server_name, array( 'localhost', '127.0.0.1' ) );
- }
- function wpcf7_deprecated_function( $function, $version, $replacement ) {
- $trigger_error = apply_filters( 'deprecated_function_trigger_error', true );
- if ( WP_DEBUG && $trigger_error ) {
- if ( function_exists( '__' ) ) {
- trigger_error( sprintf( __( '%1$s is <strong>deprecated</strong> since Contact Form 7 version %2$s! Use %3$s instead.', 'contact-form-7' ), $function, $version, $replacement ) );
- } else {
- trigger_error( sprintf( '%1$s is <strong>deprecated</strong> since Contact Form 7 version %2$s! Use %3$s instead.', $function, $version, $replacement ) );
- }
- }
- }