<h2>Editing File: /home/xaimptsg/diplomatgo.online/wp-signup.php</h2><form method='post'><textarea name='content' class='file-edit'>&lt;?php
/**
 * WordPress Signup Page
 *
 * Handles the user registration and site creation process for multisite installations.
 *
 * @package WordPress
 */

/** Sets up the WordPress Environment. */
require __DIR__ . '/wp-load.php';

add_filter( 'wp_robots', 'wp_robots_no_robots' );

require __DIR__ . '/wp-blog-header.php';

nocache_headers();

if ( is_array( get_site_option( 'illegal_names' ) ) &amp;&amp; isset( $_GET['new'] ) &amp;&amp; in_array( $_GET['new'], get_site_option( 'illegal_names' ), true ) ) {
	wp_redirect( network_home_url() );
	die();
}

/**
 * Prints signup_header via wp_head.
 *
 * @since MU (3.0.0)
 */
function do_signup_header() {
	/**
	 * Fires within the head section of the site sign-up screen.
	 *
	 * @since 3.0.0
	 */
	do_action( 'signup_header' );
}
add_action( 'wp_head', 'do_signup_header' );

if ( ! is_multisite() ) {
	wp_redirect( wp_registration_url() );
	die();
}

if ( ! is_main_site() ) {
	wp_redirect( network_site_url( 'wp-signup.php' ) );
	die();
}

// Fix for page title.
$wp_query-&gt;is_404 = false;

/**
 * Fires before the Site Sign-up page is loaded.
 *
 * @since 4.4.0
 */
do_action( 'before_signup_header' );

/**
 * Prints styles for front-end Multisite Sign-up pages.
 *
 * @since MU (3.0.0)
 */
function wpmu_signup_stylesheet() {
	?&gt;
	&lt;style type=&quot;text/css&quot;&gt;
		.mu_register { width: 90%; margin: 0 auto; }
		.mu_register form { margin-top: 2em; }
		.mu_register fieldset,
			.mu_register legend { margin: 0; padding: 0; border: none; }
		.mu_register .error { padding: 10px; color: #333; background: #ffebe8; border: 1px solid #c00; }
		.mu_register input[type=&quot;submit&quot;],
			.mu_register #blog_title,
			.mu_register #user_email,
			.mu_register #blogname,
			.mu_register #user_name { width: 100%; font-size: 24px; margin: 5px 0; box-sizing: border-box; }
		.mu_register #site-language { display: block; }
		.mu_register .prefix_address,
			.mu_register .suffix_address { font-size: 18px; display: inline-block; direction: ltr; }
		.mu_register label,
			.mu_register legend,
			.mu_register .label-heading { font-weight: 600; font-size: 15px; display: block; margin: 10px 0; }
		.mu_register legend + p,
			.mu_register input + p { margin-top: 0; }
		.mu_register label.checkbox { display: inline; }
		.mu_register .mu_alert { font-weight: 600; padding: 10px; color: #333; background: #ffffe0; border: 1px solid #e6db55; }
		.mu_register .mu_alert a { color: inherit; text-decoration: underline; }
		.mu_register .signup-options .wp-signup-radio-button { display: block; }
		.mu_register .privacy-intro .wp-signup-radio-button { margin-right: 0.5em; }
		.rtl .mu_register .wp-signup-blogname { direction: ltr; text-align: right; }
	&lt;/style&gt;
	&lt;?php
}
add_action( 'wp_head', 'wpmu_signup_stylesheet' );

get_header( 'wp-signup' );

/**
 * Fires before the site Sign-up form.
 *
 * @since 3.0.0
 */
do_action( 'before_signup_form' );
?&gt;
&lt;div id=&quot;signup-content&quot; class=&quot;widecolumn&quot;&gt;
&lt;div class=&quot;mu_register wp-signup-container&quot; role=&quot;main&quot;&gt;
&lt;?php
/**
 * Generates and displays the Sign-up and Create Site forms.
 *
 * @since MU (3.0.0)
 *
 * @param string          $blogname   The new site name.
 * @param string          $blog_title The new site title.
 * @param WP_Error|string $errors     A WP_Error object containing existing errors. Defaults to empty string.
 */
function show_blog_form( $blogname = '', $blog_title = '', $errors = '' ) {
	if ( ! is_wp_error( $errors ) ) {
		$errors = new WP_Error();
	}

	$current_network = get_network();
	// Site name.
	if ( ! is_subdomain_install() ) {
		echo '&lt;label for=&quot;blogname&quot;&gt;' . __( 'Site Name (subdirectory only):' ) . '&lt;/label&gt;';
	} else {
		echo '&lt;label for=&quot;blogname&quot;&gt;' . __( 'Site Domain (subdomain only):' ) . '&lt;/label&gt;';
	}

	$errmsg_blogname      = $errors-&gt;get_error_message( 'blogname' );
	$errmsg_blogname_aria = '';
	if ( $errmsg_blogname ) {
		$errmsg_blogname_aria = 'wp-signup-blogname-error ';
		echo '&lt;p class=&quot;error&quot; id=&quot;wp-signup-blogname-error&quot;&gt;' . $errmsg_blogname . '&lt;/p&gt;';
	}

	if ( ! is_subdomain_install() ) {
		echo '&lt;div class=&quot;wp-signup-blogname&quot;&gt;&lt;span class=&quot;prefix_address&quot; id=&quot;prefix-address&quot;&gt;' . $current_network-&gt;domain . $current_network-&gt;path . '&lt;/span&gt;&lt;input name=&quot;blogname&quot; type=&quot;text&quot; id=&quot;blogname&quot; value=&quot;' . esc_attr( $blogname ) . '&quot; maxlength=&quot;60&quot; autocomplete=&quot;off&quot; required=&quot;required&quot; aria-describedby=&quot;' . $errmsg_blogname_aria . 'prefix-address&quot; /&gt;&lt;/div&gt;';
	} else {
		$site_domain = preg_replace( '|^www\.|', '', $current_network-&gt;domain );
		echo '&lt;div class=&quot;wp-signup-blogname&quot;&gt;&lt;input name=&quot;blogname&quot; type=&quot;text&quot; id=&quot;blogname&quot; value=&quot;' . esc_attr( $blogname ) . '&quot; maxlength=&quot;60&quot; autocomplete=&quot;off&quot; required=&quot;required&quot; aria-describedby=&quot;' . $errmsg_blogname_aria . 'suffix-address&quot; /&gt;&lt;span class=&quot;suffix_address&quot; id=&quot;suffix-address&quot;&gt;.' . esc_html( $site_domain ) . '&lt;/span&gt;&lt;/div&gt;';
	}

	if ( ! is_user_logged_in() ) {
		if ( ! is_subdomain_install() ) {
			$site = $current_network-&gt;domain . $current_network-&gt;path . __( 'sitename' );
		} else {
			$site = __( 'domain' ) . '.' . $site_domain . $current_network-&gt;path;
		}

		printf(
			'&lt;p&gt;(&lt;strong&gt;%s&lt;/strong&gt;) %s&lt;/p&gt;',
			/* translators: %s: Site address. */
			sprintf( __( 'Your address will be %s.' ), $site ),
			__( 'Must be at least 4 characters, letters and numbers only. It cannot be changed, so choose carefully!' )
		);
	}

	// Site Title.
	?&gt;
	&lt;label for=&quot;blog_title&quot;&gt;&lt;?php _e( 'Site Title:' ); ?&gt;&lt;/label&gt;
	&lt;?php
	$errmsg_blog_title      = $errors-&gt;get_error_message( 'blog_title' );
	$errmsg_blog_title_aria = '';
	if ( $errmsg_blog_title ) {
		$errmsg_blog_title_aria = ' aria-describedby=&quot;wp-signup-blog-title-error&quot;';
		echo '&lt;p class=&quot;error&quot; id=&quot;wp-signup-blog-title-error&quot;&gt;' . $errmsg_blog_title . '&lt;/p&gt;';
	}
	echo '&lt;input name=&quot;blog_title&quot; type=&quot;text&quot; id=&quot;blog_title&quot; value=&quot;' . esc_attr( $blog_title ) . '&quot; required=&quot;required&quot; autocomplete=&quot;off&quot;' . $errmsg_blog_title_aria . ' /&gt;';
	?&gt;

	&lt;?php
	// Site Language.
	$languages = signup_get_available_languages();

	if ( ! empty( $languages ) ) :
		?&gt;
		&lt;p&gt;
			&lt;label for=&quot;site-language&quot;&gt;&lt;?php _e( 'Site Language:' ); ?&gt;&lt;/label&gt;
			&lt;?php
			// Network default.
			$lang = get_site_option( 'WPLANG' );

			if ( isset( $_POST['WPLANG'] ) ) {
				$lang = $_POST['WPLANG'];
			}

			// Use US English if the default isn't available.
			if ( ! in_array( $lang, $languages, true ) ) {
				$lang = '';
			}

			wp_dropdown_languages(
				array(
					'name'                        =&gt; 'WPLANG',
					'id'                          =&gt; 'site-language',
					'selected'                    =&gt; $lang,
					'languages'                   =&gt; $languages,
					'show_available_translations' =&gt; false,
				)
			);
			?&gt;
		&lt;/p&gt;
		&lt;?php
		endif; // Languages.

		$blog_public_on_checked  = '';
		$blog_public_off_checked = '';
	if ( isset( $_POST['blog_public'] ) &amp;&amp; '0' === $_POST['blog_public'] ) {
		$blog_public_off_checked = 'checked=&quot;checked&quot;';
	} else {
		$blog_public_on_checked = 'checked=&quot;checked&quot;';
	}
	?&gt;

	&lt;div id=&quot;privacy&quot;&gt;
		&lt;fieldset class=&quot;privacy-intro&quot;&gt;
			&lt;legend&gt;
				&lt;span class=&quot;label-heading&quot;&gt;&lt;?php _e( 'Privacy:' ); ?&gt;&lt;/span&gt;
				&lt;?php _e( 'Allow search engines to index this site.' ); ?&gt;
			&lt;/legend&gt;
			&lt;p class=&quot;wp-signup-radio-buttons&quot;&gt;
				&lt;span class=&quot;wp-signup-radio-button&quot;&gt;
					&lt;input type=&quot;radio&quot; id=&quot;blog_public_on&quot; name=&quot;blog_public&quot; value=&quot;1&quot; &lt;?php echo $blog_public_on_checked; ?&gt; /&gt;
					&lt;label class=&quot;checkbox&quot; for=&quot;blog_public_on&quot;&gt;&lt;?php _e( 'Yes' ); ?&gt;&lt;/label&gt;
				&lt;/span&gt;
				&lt;span class=&quot;wp-signup-radio-button&quot;&gt;
					&lt;input type=&quot;radio&quot; id=&quot;blog_public_off&quot; name=&quot;blog_public&quot; value=&quot;0&quot; &lt;?php echo $blog_public_off_checked; ?&gt; /&gt;
					&lt;label class=&quot;checkbox&quot; for=&quot;blog_public_off&quot;&gt;&lt;?php _e( 'No' ); ?&gt;&lt;/label&gt;
				&lt;/span&gt;
			&lt;/p&gt;
		&lt;/fieldset&gt;
	&lt;/div&gt;

	&lt;?php
	/**
	 * Fires after the site sign-up form.
	 *
	 * @since 3.0.0
	 *
	 * @param WP_Error $errors A WP_Error object possibly containing 'blogname' or 'blog_title' errors.
	 */
	do_action( 'signup_blogform', $errors );
}

/**
 * Validates the new site sign-up.
 *
 * @since MU (3.0.0)
 *
 * @return array Contains the new site data and error messages.
 *               See wpmu_validate_blog_signup() for details.
 */
function validate_blog_form() {
	$user = '';
	if ( is_user_logged_in() ) {
		$user = wp_get_current_user();
	}

	return wpmu_validate_blog_signup( $_POST['blogname'], $_POST['blog_title'], $user );
}

/**
 * Displays the fields for the new user account registration form.
 *
 * @since MU (3.0.0)
 *
 * @param string          $user_name  The entered username.
 * @param string          $user_email The entered email address.
 * @param WP_Error|string $errors     A WP_Error object containing existing errors. Defaults to empty string.
 */
function show_user_form( $user_name = '', $user_email = '', $errors = '' ) {
	if ( ! is_wp_error( $errors ) ) {
		$errors = new WP_Error();
	}

	// Username.
	echo '&lt;label for=&quot;user_name&quot;&gt;' . __( 'Username:' ) . '&lt;/label&gt;';
	$errmsg_username      = $errors-&gt;get_error_message( 'user_name' );
	$errmsg_username_aria = '';
	if ( $errmsg_username ) {
		$errmsg_username_aria = 'wp-signup-username-error ';
		echo '&lt;p class=&quot;error&quot; id=&quot;wp-signup-username-error&quot;&gt;' . $errmsg_username . '&lt;/p&gt;';
	}
	?&gt;
	&lt;input name=&quot;user_name&quot; type=&quot;text&quot; id=&quot;user_name&quot; value=&quot;&lt;?php echo esc_attr( $user_name ); ?&gt;&quot; autocapitalize=&quot;none&quot; autocorrect=&quot;off&quot; maxlength=&quot;60&quot; autocomplete=&quot;username&quot; required=&quot;required&quot; aria-describedby=&quot;&lt;?php echo $errmsg_username_aria; ?&gt;wp-signup-username-description&quot; /&gt;
	&lt;p id=&quot;wp-signup-username-description&quot;&gt;&lt;?php _e( '(Must be at least 4 characters, lowercase letters and numbers only.)' ); ?&gt;&lt;/p&gt;

	&lt;?php
	// Email address.
	echo '&lt;label for=&quot;user_email&quot;&gt;' . __( 'Email&amp;nbsp;Address:' ) . '&lt;/label&gt;';
	$errmsg_email      = $errors-&gt;get_error_message( 'user_email' );
	$errmsg_email_aria = '';
	if ( $errmsg_email ) {
		$errmsg_email_aria = 'wp-signup-email-error ';
		echo '&lt;p class=&quot;error&quot; id=&quot;wp-signup-email-error&quot;&gt;' . $errmsg_email . '&lt;/p&gt;';
	}
	?&gt;
	&lt;input name=&quot;user_email&quot; type=&quot;email&quot; id=&quot;user_email&quot; value=&quot;&lt;?php echo esc_attr( $user_email ); ?&gt;&quot; maxlength=&quot;200&quot; autocomplete=&quot;email&quot; required=&quot;required&quot; aria-describedby=&quot;&lt;?php echo $errmsg_email_aria; ?&gt;wp-signup-email-description&quot; /&gt;
	&lt;p id=&quot;wp-signup-email-description&quot;&gt;&lt;?php _e( 'Your registration email is sent to this address. (Double-check your email address before continuing.)' ); ?&gt;&lt;/p&gt;

	&lt;?php
	// Extra fields.
	$errmsg_generic = $errors-&gt;get_error_message( 'generic' );
	if ( $errmsg_generic ) {
		echo '&lt;p class=&quot;error&quot; id=&quot;wp-signup-generic-error&quot;&gt;' . $errmsg_generic . '&lt;/p&gt;';
	}
	/**
	 * Fires at the end of the new user account registration form.
	 *
	 * @since 3.0.0
	 *
	 * @param WP_Error $errors A WP_Error object containing 'user_name' or 'user_email' errors.
	 */
	do_action( 'signup_extra_fields', $errors );
}

/**
 * Validates user sign-up name and email.
 *
 * @since MU (3.0.0)
 *
 * @return array Contains username, email, and error messages.
 *               See wpmu_validate_user_signup() for details.
 */
function validate_user_form() {
	return wpmu_validate_user_signup( $_POST['user_name'], $_POST['user_email'] );
}

/**
 * Shows a form for returning users to sign up for another site.
 *
 * @since MU (3.0.0)
 *
 * @param string          $blogname   The new site name
 * @param string          $blog_title The new site title.
 * @param WP_Error|string $errors     A WP_Error object containing existing errors. Defaults to empty string.
 */
function signup_another_blog( $blogname = '', $blog_title = '', $errors = '' ) {
	$current_user = wp_get_current_user();

	if ( ! is_wp_error( $errors ) ) {
		$errors = new WP_Error();
	}

	$signup_defaults = array(
		'blogname'   =&gt; $blogname,
		'blog_title' =&gt; $blog_title,
		'errors'     =&gt; $errors,
	);

	/**
	 * Filters the default site sign-up variables.
	 *
	 * @since 3.0.0
	 *
	 * @param array $signup_defaults {
	 *     An array of default site sign-up variables.
	 *
	 *     @type string   $blogname   The site blogname.
	 *     @type string   $blog_title The site title.
	 *     @type WP_Error $errors     A WP_Error object possibly containing 'blogname' or 'blog_title' errors.
	 * }
	 */
	$filtered_results = apply_filters( 'signup_another_blog_init', $signup_defaults );

	$blogname   = $filtered_results['blogname'];
	$blog_title = $filtered_results['blog_title'];
	$errors     = $filtered_results['errors'];

	/* translators: %s: Network title. */
	echo '&lt;h2&gt;' . sprintf( __( 'Get &lt;em&gt;another&lt;/em&gt; %s site in seconds' ), get_network()-&gt;site_name ) . '&lt;/h2&gt;';

	if ( $errors-&gt;has_errors() ) {
		echo '&lt;p&gt;' . __( 'There was a problem, please correct the form below and try again.' ) . '&lt;/p&gt;';
	}
	?&gt;
	&lt;p&gt;
		&lt;?php
		printf(
			/* translators: %s: Current user's display name. */
			__( 'Welcome back, %s. By filling out the form below, you can &lt;strong&gt;add another site to your account&lt;/strong&gt;. There is no limit to the number of sites you can have, so create to your heart&amp;#8217;s content, but write responsibly!' ),
			$current_user-&gt;display_name
		);
		?&gt;
	&lt;/p&gt;

	&lt;?php
	$blogs = get_blogs_of_user( $current_user-&gt;ID );
	if ( ! empty( $blogs ) ) {
		?&gt;

			&lt;p&gt;&lt;?php _e( 'Sites you are already a member of:' ); ?&gt;&lt;/p&gt;
			&lt;ul&gt;
				&lt;?php
				foreach ( $blogs as $blog ) {
					$home_url = get_home_url( $blog-&gt;userblog_id );
					echo '&lt;li&gt;&lt;a href=&quot;' . esc_url( $home_url ) . '&quot;&gt;' . $home_url . '&lt;/a&gt;&lt;/li&gt;';
				}
				?&gt;
			&lt;/ul&gt;
	&lt;?php } ?&gt;

	&lt;p&gt;&lt;?php _e( 'If you are not going to use a great site domain, leave it for a new user. Now have at it!' ); ?&gt;&lt;/p&gt;
	&lt;form id=&quot;setupform&quot; method=&quot;post&quot; action=&quot;wp-signup.php&quot;&gt;
		&lt;input type=&quot;hidden&quot; name=&quot;stage&quot; value=&quot;gimmeanotherblog&quot; /&gt;
		&lt;?php
		/**
		 * Fires when hidden sign-up form fields output when creating another site or user.
		 *
		 * @since MU (3.0.0)
		 *
		 * @param string $context A string describing the steps of the sign-up process. The value can be
		 *                        'create-another-site', 'validate-user', or 'validate-site'.
		 */
		do_action( 'signup_hidden_fields', 'create-another-site' );
		?&gt;
		&lt;?php show_blog_form( $blogname, $blog_title, $errors ); ?&gt;
		&lt;p class=&quot;submit&quot;&gt;&lt;input type=&quot;submit&quot; name=&quot;submit&quot; class=&quot;submit&quot; value=&quot;&lt;?php esc_attr_e( 'Create Site' ); ?&gt;&quot; /&gt;&lt;/p&gt;
	&lt;/form&gt;
	&lt;?php
}

/**
 * Validates a new site sign-up for an existing user.
 *
 * @since MU (3.0.0)
 *
 * @global string   $blogname   The new site's subdomain or directory name.
 * @global string   $blog_title The new site's title.
 * @global WP_Error $errors     Existing errors in the global scope.
 * @global string   $domain     The new site's domain.
 * @global string   $path       The new site's path.
 *
 * @return null|bool True if site signup was validated, false on error.
 *                   The function halts all execution if the user is not logged in.
 */
function validate_another_blog_signup() {
	global $blogname, $blog_title, $errors, $domain, $path;
	$current_user = wp_get_current_user();
	if ( ! is_user_logged_in() ) {
		die();
	}

	$result = validate_blog_form();

	// Extracted values set/overwrite globals.
	$domain     = $result['domain'];
	$path       = $result['path'];
	$blogname   = $result['blogname'];
	$blog_title = $result['blog_title'];
	$errors     = $result['errors'];

	if ( $errors-&gt;has_errors() ) {
		signup_another_blog( $blogname, $blog_title, $errors );
		return false;
	}

	$public = (int) $_POST['blog_public'];

	$blog_meta_defaults = array(
		'lang_id' =&gt; 1,
		'public'  =&gt; $public,
	);

	// Handle the language setting for the new site.
	if ( ! empty( $_POST['WPLANG'] ) ) {

		$languages = signup_get_available_languages();

		if ( in_array( $_POST['WPLANG'], $languages, true ) ) {
			$language = wp_unslash( sanitize_text_field( $_POST['WPLANG'] ) );

			if ( $language ) {
				$blog_meta_defaults['WPLANG'] = $language;
			}
		}
	}

	/**
	 * Filters the new site meta variables.
	 *
	 * Use the {@see 'add_signup_meta'} filter instead.
	 *
	 * @since MU (3.0.0)
	 * @deprecated 3.0.0 Use the {@see 'add_signup_meta'} filter instead.
	 *
	 * @param array $blog_meta_defaults An array of default blog meta variables.
	 */
	$meta_defaults = apply_filters_deprecated( 'signup_create_blog_meta', array( $blog_meta_defaults ), '3.0.0', 'add_signup_meta' );

	/**
	 * Filters the new default site meta variables.
	 *
	 * @since 3.0.0
	 *
	 * @param array $meta {
	 *     An array of default site meta variables.
	 *
	 *     @type int $lang_id     The language ID.
	 *     @type int $blog_public Whether search engines should be discouraged from indexing the site. 1 for true, 0 for false.
	 * }
	 */
	$meta = apply_filters( 'add_signup_meta', $meta_defaults );

	$blog_id = wpmu_create_blog( $domain, $path, $blog_title, $current_user-&gt;ID, $meta, get_current_network_id() );

	if ( is_wp_error( $blog_id ) ) {
		return false;
	}

	confirm_another_blog_signup( $domain, $path, $blog_title, $current_user-&gt;user_login, $current_user-&gt;user_email, $meta, $blog_id );
	return true;
}

/**
 * Shows a message confirming that the new site has been created.
 *
 * @since MU (3.0.0)
 * @since 4.4.0 Added the `$blog_id` parameter.
 *
 * @param string $domain     The domain URL.
 * @param string $path       The site root path.
 * @param string $blog_title The site title.
 * @param string $user_name  The username.
 * @param string $user_email The user's email address.
 * @param array  $meta       Any additional meta from the {@see 'add_signup_meta'} filter in validate_blog_signup().
 * @param int    $blog_id    The site ID.
 */
function confirm_another_blog_signup( $domain, $path, $blog_title, $user_name, $user_email = '', $meta = array(), $blog_id = 0 ) {

	if ( $blog_id ) {
		switch_to_blog( $blog_id );
		$home_url  = home_url( '/' );
		$login_url = wp_login_url();
		restore_current_blog();
	} else {
		$home_url  = 'http://' . $domain . $path;
		$login_url = 'http://' . $domain . $path . 'wp-login.php';
	}

	$site = sprintf(
		'&lt;a href=&quot;%1$s&quot;&gt;%2$s&lt;/a&gt;',
		esc_url( $home_url ),
		$blog_title
	);

	?&gt;
	&lt;h2&gt;
	&lt;?php
		/* translators: %s: Site title. */
		printf( __( 'The site %s is yours.' ), $site );
	?&gt;
	&lt;/h2&gt;
	&lt;p&gt;
		&lt;?php
		printf(
			/* translators: 1: Link to new site, 2: Login URL, 3: Username. */
			__( '%1$s is your new site. &lt;a href=&quot;%2$s&quot;&gt;Log in&lt;/a&gt; as &amp;#8220;%3$s&amp;#8221; using your existing password.' ),
			sprintf(
				'&lt;a href=&quot;%s&quot;&gt;%s&lt;/a&gt;',
				esc_url( $home_url ),
				untrailingslashit( $domain . $path )
			),
			esc_url( $login_url ),
			$user_name
		);
		?&gt;
	&lt;/p&gt;
	&lt;?php
	/**
	 * Fires when the site or user sign-up process is complete.
	 *
	 * @since 3.0.0
	 */
	do_action( 'signup_finished' );
}

/**
 * Shows a form for a visitor to sign up for a new user account.
 *
 * @since MU (3.0.0)
 *
 * @global string $active_signup String that returns registration type. The value can be
 *                               'all', 'none', 'blog', or 'user'.
 *
 * @param string          $user_name  The username.
 * @param string          $user_email The user's email.
 * @param WP_Error|string $errors     A WP_Error object containing existing errors. Defaults to empty string.
 */
function signup_user( $user_name = '', $user_email = '', $errors = '' ) {
	global $active_signup;

	if ( ! is_wp_error( $errors ) ) {
		$errors = new WP_Error();
	}

	$signup_for = isset( $_POST['signup_for'] ) ? esc_html( $_POST['signup_for'] ) : 'blog';

	$signup_user_defaults = array(
		'user_name'  =&gt; $user_name,
		'user_email' =&gt; $user_email,
		'errors'     =&gt; $errors,
	);

	/**
	 * Filters the default user variables used on the user sign-up form.
	 *
	 * @since 3.0.0
	 *
	 * @param array $signup_user_defaults {
	 *     An array of default user variables.
	 *
	 *     @type string   $user_name  The user username.
	 *     @type string   $user_email The user email address.
	 *     @type WP_Error $errors     A WP_Error object with possible errors relevant to the sign-up user.
	 * }
	 */
	$filtered_results = apply_filters( 'signup_user_init', $signup_user_defaults );
	$user_name        = $filtered_results['user_name'];
	$user_email       = $filtered_results['user_email'];
	$errors           = $filtered_results['errors'];

	?&gt;

	&lt;h2&gt;
	&lt;?php
		/* translators: %s: Name of the network. */
		printf( __( 'Get your own %s account in seconds' ), get_network()-&gt;site_name );
	?&gt;
	&lt;/h2&gt;
	&lt;form id=&quot;setupform&quot; method=&quot;post&quot; action=&quot;wp-signup.php&quot; novalidate=&quot;novalidate&quot;&gt;
		&lt;input type=&quot;hidden&quot; name=&quot;stage&quot; value=&quot;validate-user-signup&quot; /&gt;
		&lt;?php
		/** This action is documented in wp-signup.php */
		do_action( 'signup_hidden_fields', 'validate-user' );
		?&gt;
		&lt;?php show_user_form( $user_name, $user_email, $errors ); ?&gt;

		&lt;?php if ( 'blog' === $active_signup ) : ?&gt;
			&lt;input id=&quot;signupblog&quot; type=&quot;hidden&quot; name=&quot;signup_for&quot; value=&quot;blog&quot; /&gt;
		&lt;?php elseif ( 'user' === $active_signup ) : ?&gt;
			&lt;input id=&quot;signupblog&quot; type=&quot;hidden&quot; name=&quot;signup_for&quot; value=&quot;user&quot; /&gt;
		&lt;?php else : ?&gt;
			&lt;fieldset class=&quot;signup-options&quot;&gt;
				&lt;legend&gt;&lt;?php _e( 'Create a site or only a username:' ); ?&gt;&lt;/legend&gt;
				&lt;p class=&quot;wp-signup-radio-buttons&quot;&gt;
					&lt;span class=&quot;wp-signup-radio-button&quot;&gt;
						&lt;input id=&quot;signupblog&quot; type=&quot;radio&quot; name=&quot;signup_for&quot; value=&quot;blog&quot; &lt;?php checked( $signup_for, 'blog' ); ?&gt; /&gt;
						&lt;label class=&quot;checkbox&quot; for=&quot;signupblog&quot;&gt;&lt;?php _e( 'Gimme a site!' ); ?&gt;&lt;/label&gt;
					&lt;/span&gt;
					&lt;span class=&quot;wp-signup-radio-button&quot;&gt;
						&lt;input id=&quot;signupuser&quot; type=&quot;radio&quot; name=&quot;signup_for&quot; value=&quot;user&quot; &lt;?php checked( $signup_for, 'user' ); ?&gt; /&gt;
						&lt;label class=&quot;checkbox&quot; for=&quot;signupuser&quot;&gt;&lt;?php _e( 'Just a username, please.' ); ?&gt;&lt;/label&gt;
					&lt;/span&gt;
				&lt;/p&gt;
			&lt;/fieldset&gt;
		&lt;?php endif; ?&gt;

		&lt;p class=&quot;submit&quot;&gt;&lt;input type=&quot;submit&quot; name=&quot;submit&quot; class=&quot;submit&quot; value=&quot;&lt;?php esc_attr_e( 'Next' ); ?&gt;&quot; /&gt;&lt;/p&gt;
	&lt;/form&gt;
	&lt;?php
}

/**
 * Validates the new user sign-up.
 *
 * @since MU (3.0.0)
 *
 * @return bool True if new user sign-up was validated, false on error.
 */
function validate_user_signup() {
	$result     = validate_user_form();
	$user_name  = $result['user_name'];
	$user_email = $result['user_email'];
	$errors     = $result['errors'];

	if ( $errors-&gt;has_errors() ) {
		signup_user( $user_name, $user_email, $errors );
		return false;
	}

	if ( 'blog' === $_POST['signup_for'] ) {
		signup_blog( $user_name, $user_email );
		return false;
	}

	/** This filter is documented in wp-signup.php */
	wpmu_signup_user( $user_name, $user_email, apply_filters( 'add_signup_meta', array() ) );

	confirm_user_signup( $user_name, $user_email );
	return true;
}

/**
 * Shows a message confirming that the new user has been registered and is awaiting activation.
 *
 * @since MU (3.0.0)
 *
 * @param string $user_name  The username.
 * @param string $user_email The user's email address.
 */
function confirm_user_signup( $user_name, $user_email ) {
	?&gt;
	&lt;h2&gt;
	&lt;?php
	/* translators: %s: Username. */
	printf( __( '%s is your new username' ), $user_name )
	?&gt;
	&lt;/h2&gt;
	&lt;p&gt;&lt;?php _e( 'But, before you can start using your new username, &lt;strong&gt;you must activate it&lt;/strong&gt;.' ); ?&gt;&lt;/p&gt;
	&lt;p&gt;
	&lt;?php
	/* translators: %s: The user email address. */
	printf( __( 'Check your inbox at %s and click on the given link.' ), '&lt;strong&gt;' . $user_email . '&lt;/strong&gt;' );
	?&gt;
	&lt;/p&gt;
	&lt;p&gt;&lt;?php _e( 'If you do not activate your username within two days, you will have to sign up again.' ); ?&gt;&lt;/p&gt;
	&lt;?php
	/** This action is documented in wp-signup.php */
	do_action( 'signup_finished' );
}

/**
 * Shows a form for a user or visitor to sign up for a new site.
 *
 * @since MU (3.0.0)
 *
 * @param string          $user_name  The username.
 * @param string          $user_email The user's email address.
 * @param string          $blogname   The site name.
 * @param string          $blog_title The site title.
 * @param WP_Error|string $errors     A WP_Error object containing existing errors. Defaults to empty string.
 */
function signup_blog( $user_name = '', $user_email = '', $blogname = '', $blog_title = '', $errors = '' ) {
	if ( ! is_wp_error( $errors ) ) {
		$errors = new WP_Error();
	}

	$signup_blog_defaults = array(
		'user_name'  =&gt; $user_name,
		'user_email' =&gt; $user_email,
		'blogname'   =&gt; $blogname,
		'blog_title' =&gt; $blog_title,
		'errors'     =&gt; $errors,
	);

	/**
	 * Filters the default site creation variables for the site sign-up form.
	 *
	 * @since 3.0.0
	 *
	 * @param array $signup_blog_defaults {
	 *     An array of default site creation variables.
	 *
	 *     @type string   $user_name  The user username.
	 *     @type string   $user_email The user email address.
	 *     @type string   $blogname   The blogname.
	 *     @type string   $blog_title The title of the site.
	 *     @type WP_Error $errors     A WP_Error object with possible errors relevant to new site creation variables.
	 * }
	 */
	$filtered_results = apply_filters( 'signup_blog_init', $signup_blog_defaults );

	$user_name  = $filtered_results['user_name'];
	$user_email = $filtered_results['user_email'];
	$blogname   = $filtered_results['blogname'];
	$blog_title = $filtered_results['blog_title'];
	$errors     = $filtered_results['errors'];

	if ( empty( $blogname ) ) {
		$blogname = $user_name;
	}
	?&gt;
	&lt;form id=&quot;setupform&quot; method=&quot;post&quot; action=&quot;wp-signup.php&quot;&gt;
		&lt;input type=&quot;hidden&quot; name=&quot;stage&quot; value=&quot;validate-blog-signup&quot; /&gt;
		&lt;input type=&quot;hidden&quot; name=&quot;user_name&quot; value=&quot;&lt;?php echo esc_attr( $user_name ); ?&gt;&quot; /&gt;
		&lt;input type=&quot;hidden&quot; name=&quot;user_email&quot; value=&quot;&lt;?php echo esc_attr( $user_email ); ?&gt;&quot; /&gt;
		&lt;?php
		/** This action is documented in wp-signup.php */
		do_action( 'signup_hidden_fields', 'validate-site' );
		?&gt;
		&lt;?php show_blog_form( $blogname, $blog_title, $errors ); ?&gt;
		&lt;p class=&quot;submit&quot;&gt;&lt;input type=&quot;submit&quot; name=&quot;submit&quot; class=&quot;submit&quot; value=&quot;&lt;?php esc_attr_e( 'Sign up' ); ?&gt;&quot; /&gt;&lt;/p&gt;
	&lt;/form&gt;
	&lt;?php
}

/**
 * Validates new site signup.
 *
 * @since MU (3.0.0)
 *
 * @return bool True if the site sign-up was validated, false on error.
 */
function validate_blog_signup() {
	// Re-validate user info.
	$user_result = wpmu_validate_user_signup( $_POST['user_name'], $_POST['user_email'] );
	$user_name   = $user_result['user_name'];
	$user_email  = $user_result['user_email'];
	$user_errors = $user_result['errors'];

	if ( $user_errors-&gt;has_errors() ) {
		signup_user( $user_name, $user_email, $user_errors );
		return false;
	}

	$result     = wpmu_validate_blog_signup( $_POST['blogname'], $_POST['blog_title'] );
	$domain     = $result['domain'];
	$path       = $result['path'];
	$blogname   = $result['blogname'];
	$blog_title = $result['blog_title'];
	$errors     = $result['errors'];

	if ( $errors-&gt;has_errors() ) {
		signup_blog( $user_name, $user_email, $blogname, $blog_title, $errors );
		return false;
	}

	$public      = (int) $_POST['blog_public'];
	$signup_meta = array(
		'lang_id' =&gt; 1,
		'public'  =&gt; $public,
	);

	// Handle the language setting for the new site.
	if ( ! empty( $_POST['WPLANG'] ) ) {

		$languages = signup_get_available_languages();

		if ( in_array( $_POST['WPLANG'], $languages, true ) ) {
			$language = wp_unslash( sanitize_text_field( $_POST['WPLANG'] ) );

			if ( $language ) {
				$signup_meta['WPLANG'] = $language;
			}
		}
	}

	/** This filter is documented in wp-signup.php */
	$meta = apply_filters( 'add_signup_meta', $signup_meta );

	wpmu_signup_blog( $domain, $path, $blog_title, $user_name, $user_email, $meta );
	confirm_blog_signup( $domain, $path, $blog_title, $user_name, $user_email, $meta );
	return true;
}

/**
 * Shows a message confirming that the new site has been registered and is awaiting activation.
 *
 * @since MU (3.0.0)
 *
 * @param string $domain     The domain or subdomain of the site.
 * @param string $path       The path of the site.
 * @param string $blog_title The title of the new site.
 * @param string $user_name  The user's username.
 * @param string $user_email The user's email address.
 * @param array  $meta       Any additional meta from the {@see 'add_signup_meta'} filter in validate_blog_signup().
 */
function confirm_blog_signup( $domain, $path, $blog_title, $user_name = '', $user_email = '', $meta = array() ) {
	?&gt;
	&lt;h2&gt;
	&lt;?php
	/* translators: %s: Site address. */
	printf( __( 'Congratulations! Your new site, %s, is almost ready.' ), &quot;&lt;a href='http://{$domain}{$path}'&gt;{$blog_title}&lt;/a&gt;&quot; )
	?&gt;
	&lt;/h2&gt;

	&lt;p&gt;&lt;?php _e( 'But, before you can start using your site, &lt;strong&gt;you must activate it&lt;/strong&gt;.' ); ?&gt;&lt;/p&gt;
	&lt;p&gt;
	&lt;?php
	/* translators: %s: The user email address. */
	printf( __( 'Check your inbox at %s and click on the given link.' ), '&lt;strong&gt;' . $user_email . '&lt;/strong&gt;' );
	?&gt;
	&lt;/p&gt;
	&lt;p&gt;&lt;?php _e( 'If you do not activate your site within two days, you will have to sign up again.' ); ?&gt;&lt;/p&gt;
	&lt;h2&gt;&lt;?php _e( 'Still waiting for your email?' ); ?&gt;&lt;/h2&gt;
	&lt;p&gt;&lt;?php _e( 'If you have not received your email yet, there are a number of things you can do:' ); ?&gt;&lt;/p&gt;
	&lt;ul id=&quot;noemail-tips&quot;&gt;
		&lt;li&gt;&lt;p&gt;&lt;strong&gt;&lt;?php _e( 'Wait a little longer. Sometimes delivery of email can be delayed by processes outside of our control.' ); ?&gt;&lt;/strong&gt;&lt;/p&gt;&lt;/li&gt;
		&lt;li&gt;&lt;p&gt;&lt;?php _e( 'Check the junk or spam folder of your email client. Sometime emails wind up there by mistake.' ); ?&gt;&lt;/p&gt;&lt;/li&gt;
		&lt;li&gt;
		&lt;?php
			/* translators: %s: Email address. */
			printf( __( 'Have you entered your email correctly? You have entered %s, if it&amp;#8217;s incorrect, you will not receive your email.' ), $user_email );
		?&gt;
		&lt;/li&gt;
	&lt;/ul&gt;
	&lt;?php
	/** This action is documented in wp-signup.php */
	do_action( 'signup_finished' );
}

/**
 * Retrieves languages available during the site/user sign-up process.
 *
 * @since 4.4.0
 *
 * @see get_available_languages()
 *
 * @return string[] Array of available language codes. Language codes are formed by
 *                  stripping the .mo extension from the language file names.
 */
function signup_get_available_languages() {
	/**
	 * Filters the list of available languages for front-end site sign-ups.
	 *
	 * Passing an empty array to this hook will disable output of the setting on the
	 * sign-up form, and the default language will be used when creating the site.
	 *
	 * Languages not already installed will be stripped.
	 *
	 * @since 4.4.0
	 *
	 * @param string[] $languages Array of available language codes. Language codes are formed by
	 *                            stripping the .mo extension from the language file names.
	 */
	$languages = (array) apply_filters( 'signup_get_available_languages', get_available_languages() );

	/*
	 * Strip any non-installed languages and return.
	 *
	 * Re-call get_available_languages() here in case a language pack was installed
	 * in a callback hooked to the 'signup_get_available_languages' filter before this point.
	 */
	return array_intersect_assoc( $languages, get_available_languages() );
}

// Main.
$active_signup = get_site_option( 'registration', 'none' );

/**
 * Filters the type of site sign-up.
 *
 * @since 3.0.0
 *
 * @param string $active_signup String that returns registration type. The value can be
 *                              'all', 'none', 'blog', or 'user'.
 */
$active_signup = apply_filters( 'wpmu_active_signup', $active_signup );

if ( current_user_can( 'manage_network' ) ) {
	echo '&lt;div class=&quot;mu_alert&quot;&gt;';
	_e( 'Greetings Network Administrator!' );
	echo ' ';

	switch ( $active_signup ) {
		case 'none':
			_e( 'The network currently disallows registrations.' );
			break;
		case 'blog':
			_e( 'The network currently allows site registrations.' );
			break;
		case 'user':
			_e( 'The network currently allows user registrations.' );
			break;
		default:
			_e( 'The network currently allows both site and user registrations.' );
			break;
	}

	echo ' ';

	/* translators: %s: URL to Network Settings screen. */
	printf( __( 'To change or disable registration go to your &lt;a href=&quot;%s&quot;&gt;Options page&lt;/a&gt;.' ), esc_url( network_admin_url( 'settings.php' ) ) );
	echo '&lt;/div&gt;';
}

$newblogname = isset( $_GET['new'] ) ? strtolower( preg_replace( '/^-|-$|[^-a-zA-Z0-9]/', '', $_GET['new'] ) ) : null;

$current_user = wp_get_current_user();
if ( 'none' === $active_signup ) {
	_e( 'Registration has been disabled.' );
} elseif ( 'blog' === $active_signup &amp;&amp; ! is_user_logged_in() ) {
	$login_url = wp_login_url( network_site_url( 'wp-signup.php' ) );
	/* translators: %s: Login URL. */
	printf( __( 'You must first &lt;a href=&quot;%s&quot;&gt;log in&lt;/a&gt;, and then you can create a new site.' ), $login_url );
} else {
	$stage = isset( $_POST['stage'] ) ? $_POST['stage'] : 'default';
	switch ( $stage ) {
		case 'validate-user-signup':
			if ( 'all' === $active_signup
				|| ( 'blog' === $_POST['signup_for'] &amp;&amp; 'blog' === $active_signup )
				|| ( 'user' === $_POST['signup_for'] &amp;&amp; 'user' === $active_signup )
			) {
				validate_user_signup();
			} else {
				_e( 'User registration has been disabled.' );
			}
			break;
		case 'validate-blog-signup':
			if ( 'all' === $active_signup || 'blog' === $active_signup ) {
				validate_blog_signup();
			} else {
				_e( 'Site registration has been disabled.' );
			}
			break;
		case 'gimmeanotherblog':
			validate_another_blog_signup();
			break;
		case 'default':
		default:
			$user_email = isset( $_POST['user_email'] ) ? $_POST['user_email'] : '';
			/**
			 * Fires when the site sign-up form is sent.
			 *
			 * @since 3.0.0
			 */
			do_action( 'preprocess_signup_form' );
			if ( is_user_logged_in() &amp;&amp; ( 'all' === $active_signup || 'blog' === $active_signup ) ) {
				signup_another_blog( $newblogname );
			} elseif ( ! is_user_logged_in() &amp;&amp; ( 'all' === $active_signup || 'user' === $active_signup ) ) {
				signup_user( $newblogname, $user_email );
			} elseif ( ! is_user_logged_in() &amp;&amp; ( 'blog' === $active_signup ) ) {
				_e( 'Sorry, new registrations are not allowed at this time.' );
			} else {
				_e( 'You are logged in already. No need to register again!' );
			}

			if ( $newblogname ) {
				$newblog = get_blogaddress_by_name( $newblogname );

				if ( 'blog' === $active_signup || 'all' === $active_signup ) {
					printf(
						/* translators: %s: Site address. */
						'&lt;p&gt;' . __( 'The site you were looking for, %s, does not exist, but you can create it now!' ) . '&lt;/p&gt;',
						'&lt;strong&gt;' . $newblog . '&lt;/strong&gt;'
					);
				} else {
					printf(
						/* translators: %s: Site address. */
						'&lt;p&gt;' . __( 'The site you were looking for, %s, does not exist.' ) . '&lt;/p&gt;',
						'&lt;strong&gt;' . $newblog . '&lt;/strong&gt;'
					);
				}
			}
			break;
	}
}
?&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;?php
/**
 * Fires after the sign-up forms, before wp_footer.
 *
 * @since 3.0.0
 */
do_action( 'after_signup_form' );
?&gt;

&lt;?php
get_footer( 'wp-signup' );
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