Add upstream

wp-content/plugins/jetpack/modules/verification-tools/verification-tools-utils.php

@@ -0,0 +1,49 @@
+<?php
+
+/*
+ * Helper functions that are called from API even when module is inactive should be added here.
+ * This file will be included in module-extras.php.
+ */
+
+if ( ! function_exists( 'jetpack_verification_validate' ) ) {
+	function jetpack_verification_validate( $verification_services_codes ) {
+		foreach ( $verification_services_codes as $key => $code ) {
+			// Parse html meta tag if it does not look like a valid code
+			if ( ! preg_match( '/^[a-z0-9_-]+$/i', $code ) ) {
+				$code = jetpack_verification_get_code( $code );
+			}
+
+			$code = esc_attr( trim( $code ) );
+
+			// limit length to 100 chars.
+			$code = substr( $code, 0, 100 );
+
+			/**
+			 * Fire after each Verification code was validated.
+			 *
+			 * @module verification-tools
+			 *
+			 * @since 3.0.0
+			 *
+			 * @param string $key Verification service name.
+			 * @param string $code Verification service code provided in field in the Tools menu.
+			 */
+			do_action( 'jetpack_site_verification_validate', $key, $code );
+
+			$verification_services_codes[ $key ] = $code;
+		}
+		return $verification_services_codes;
+	}
+}
+
+if ( ! function_exists( 'jetpack_verification_get_code' ) ) {
+	function jetpack_verification_get_code( $code ) {
+		$pattern = '/content=["\']?([^"\' ]*)["\' ]/is';
+		preg_match( $pattern, $code, $match );
+		if ( $match ) {
+			return urldecode( $match[1] );
+		} else {
+			return false;
+		}
+	}
+}