diff -r 490d5cc509ed -r cf61fcea0001 wp/wp-admin/includes/network.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-admin/includes/network.php	Mon Oct 14 17:39:30 2019 +0200
@@ -0,0 +1,606 @@
+<?php
+/**
+ * WordPress Network Administration API.
+ *
+ * @package WordPress
+ * @subpackage Administration
+ * @since 4.4.0
+ */
+
+/**
+ * Check for an existing network.
+ *
+ * @since 3.0.0
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
+ *
+ * @return Whether a network exists.
+ */
+function network_domain_check() {
+	global $wpdb;
+
+	$sql = $wpdb->prepare( "SHOW TABLES LIKE %s", $wpdb->esc_like( $wpdb->site ) );
+	if ( $wpdb->get_var( $sql ) ) {
+		return $wpdb->get_var( "SELECT domain FROM $wpdb->site ORDER BY id ASC LIMIT 1" );
+	}
+	return false;
+}
+
+/**
+ * Allow subdomain installation
+ *
+ * @since 3.0.0
+ * @return bool Whether subdomain installation is allowed
+ */
+function allow_subdomain_install() {
+	$domain = preg_replace( '|https?://([^/]+)|', '$1', get_option( 'home' ) );
+	if ( parse_url( get_option( 'home' ), PHP_URL_PATH ) || 'localhost' == $domain || preg_match( '|^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$|', $domain ) )
+		return false;
+
+	return true;
+}
+
+/**
+ * Allow subdirectory installation.
+ *
+ * @since 3.0.0
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
+ *
+ * @return bool Whether subdirectory installation is allowed
+ */
+function allow_subdirectory_install() {
+	global $wpdb;
+        /**
+         * Filters whether to enable the subdirectory installation feature in Multisite.
+         *
+         * @since 3.0.0
+         *
+         * @param bool $allow Whether to enable the subdirectory installation feature in Multisite. Default is false.
+         */
+	if ( apply_filters( 'allow_subdirectory_install', false ) )
+		return true;
+
+	if ( defined( 'ALLOW_SUBDIRECTORY_INSTALL' ) && ALLOW_SUBDIRECTORY_INSTALL )
+		return true;
+
+	$post = $wpdb->get_row( "SELECT ID FROM $wpdb->posts WHERE post_date < DATE_SUB(NOW(), INTERVAL 1 MONTH) AND post_status = 'publish'" );
+	if ( empty( $post ) )
+		return true;
+
+	return false;
+}
+
+/**
+ * Get base domain of network.
+ *
+ * @since 3.0.0
+ * @return string Base domain.
+ */
+function get_clean_basedomain() {
+	if ( $existing_domain = network_domain_check() )
+		return $existing_domain;
+	$domain = preg_replace( '|https?://|', '', get_option( 'siteurl' ) );
+	if ( $slash = strpos( $domain, '/' ) )
+		$domain = substr( $domain, 0, $slash );
+	return $domain;
+}
+
+/**
+ * Prints step 1 for Network installation process.
+ *
+ * @todo Realistically, step 1 should be a welcome screen explaining what a Network is and such. Navigating to Tools > Network
+ * 	should not be a sudden "Welcome to a new install process! Fill this out and click here." See also contextual help todo.
+ *
+ * @since 3.0.0
+ *
+ * @global bool $is_apache
+ *
+ * @param WP_Error $errors
+ */
+function network_step1( $errors = false ) {
+	global $is_apache;
+
+	if ( defined('DO_NOT_UPGRADE_GLOBAL_TABLES') ) {
+		echo '<div class="error"><p><strong>' . __( 'ERROR:' ) . '</strong> ' . sprintf(
+			/* translators: %s: DO_NOT_UPGRADE_GLOBAL_TABLES */
+			__( 'The constant %s cannot be defined when creating a network.' ),
+			'<code>DO_NOT_UPGRADE_GLOBAL_TABLES</code>'
+		) . '</p></div>';
+		echo '</div>';
+		include( ABSPATH . 'wp-admin/admin-footer.php' );
+		die();
+	}
+
+	$active_plugins = get_option( 'active_plugins' );
+	if ( ! empty( $active_plugins ) ) {
+		echo '<div class="updated"><p><strong>' . __( 'Warning:' ) . '</strong> ' . sprintf(
+			/* translators: %s: Plugins screen URL */
+			__( 'Please <a href="%s">deactivate your plugins</a> before enabling the Network feature.' ),
+			admin_url( 'plugins.php?plugin_status=active' )
+		) . '</p></div>';
+		echo '<p>' . __( 'Once the network is created, you may reactivate your plugins.' ) . '</p>';
+		echo '</div>';
+		include( ABSPATH . 'wp-admin/admin-footer.php' );
+		die();
+	}
+
+	$hostname = get_clean_basedomain();
+	$has_ports = strstr( $hostname, ':' );
+	if ( ( false !== $has_ports && ! in_array( $has_ports, array( ':80', ':443' ) ) ) ) {
+		echo '<div class="error"><p><strong>' . __( 'ERROR:' ) . '</strong> ' . __( 'You cannot install a network of sites with your server address.' ) . '</p></div>';
+		echo '<p>' . sprintf(
+			/* translators: %s: port number */
+			__( 'You cannot use port numbers such as %s.' ),
+			'<code>' . $has_ports . '</code>'
+		) . '</p>';
+		echo '<a href="' . esc_url( admin_url() ) . '">' . __( 'Return to Dashboard' ) . '</a>';
+		echo '</div>';
+		include( ABSPATH . 'wp-admin/admin-footer.php' );
+		die();
+	}
+
+	echo '<form method="post">';
+
+	wp_nonce_field( 'install-network-1' );
+
+	$error_codes = array();
+	if ( is_wp_error( $errors ) ) {
+		echo '<div class="error"><p><strong>' . __( 'ERROR: The network could not be created.' ) . '</strong></p>';
+		foreach ( $errors->get_error_messages() as $error )
+			echo "<p>$error</p>";
+		echo '</div>';
+		$error_codes = $errors->get_error_codes();
+	}
+
+	if ( ! empty( $_POST['sitename'] ) && ! in_array( 'empty_sitename', $error_codes ) ) {
+		$site_name = $_POST['sitename'];
+	} else {
+		/* translators: %s: Default network name */
+		$site_name = sprintf( __( '%s Sites' ), get_option( 'blogname' ) );
+	}
+
+	if ( ! empty( $_POST['email'] ) && ! in_array( 'invalid_email', $error_codes ) ) {
+		$admin_email = $_POST['email'];
+	} else {
+		$admin_email = get_option( 'admin_email' );
+	}
+	?>
+	<p><?php _e( 'Welcome to the Network installation process!' ); ?></p>
+	<p><?php _e( 'Fill in the information below and you&#8217;ll be on your way to creating a network of WordPress sites. We will create configuration files in the next step.' ); ?></p>
+	<?php
+
+	if ( isset( $_POST['subdomain_install'] ) ) {
+		$subdomain_install = (bool) $_POST['subdomain_install'];
+	} elseif ( apache_mod_loaded('mod_rewrite') ) { // assume nothing
+		$subdomain_install = true;
+	} elseif ( !allow_subdirectory_install() ) {
+		$subdomain_install = true;
+	} else {
+		$subdomain_install = false;
+		if ( $got_mod_rewrite = got_mod_rewrite() ) { // dangerous assumptions
+			echo '<div class="updated inline"><p><strong>' . __( 'Note:' ) . '</strong> ';
+			/* translators: %s: mod_rewrite */
+			printf( __( 'Please make sure the Apache %s module is installed as it will be used at the end of this installation.' ),
+				'<code>mod_rewrite</code>'
+			);
+			echo '</p>';
+		} elseif ( $is_apache ) {
+			echo '<div class="error inline"><p><strong>' . __( 'Warning:' ) . '</strong> ';
+			/* translators: %s: mod_rewrite */
+			printf( __( 'It looks like the Apache %s module is not installed.' ),
+				'<code>mod_rewrite</code>'
+			);
+			echo '</p>';
+		}
+
+		if ( $got_mod_rewrite || $is_apache ) { // Protect against mod_rewrite mimicry (but ! Apache)
+			echo '<p>';
+			/* translators: 1: mod_rewrite, 2: mod_rewrite documentation URL, 3: Google search for mod_rewrite */
+			printf( __( 'If %1$s is disabled, ask your administrator to enable that module, or look at the <a href="%2$s">Apache documentation</a> or <a href="%3$s">elsewhere</a> for help setting it up.' ),
+				'<code>mod_rewrite</code>',
+				'https://httpd.apache.org/docs/mod/mod_rewrite.html',
+				'https://www.google.com/search?q=apache+mod_rewrite'
+			);
+			echo '</p></div>';
+		}
+	}
+
+	if ( allow_subdomain_install() && allow_subdirectory_install() ) : ?>
+		<h3><?php esc_html_e( 'Addresses of Sites in your Network' ); ?></h3>
+		<p><?php _e( 'Please choose whether you would like sites in your WordPress network to use sub-domains or sub-directories.' ); ?>
+			<strong><?php _e( 'You cannot change this later.' ); ?></strong></p>
+		<p><?php _e( 'You will need a wildcard DNS record if you are going to use the virtual host (sub-domain) functionality.' ); ?></p>
+		<?php // @todo: Link to an MS readme? ?>
+		<table class="form-table">
+			<tr>
+				<th><label><input type="radio" name="subdomain_install" value="1"<?php checked( $subdomain_install ); ?> /> <?php _e( 'Sub-domains' ); ?></label></th>
+				<td><?php printf(
+					/* translators: 1: hostname */
+					_x( 'like <code>site1.%1$s</code> and <code>site2.%1$s</code>', 'subdomain examples' ),
+					$hostname
+				); ?></td>
+			</tr>
+			<tr>
+				<th><label><input type="radio" name="subdomain_install" value="0"<?php checked( ! $subdomain_install ); ?> /> <?php _e( 'Sub-directories' ); ?></label></th>
+				<td><?php printf(
+					/* translators: 1: hostname */
+					_x( 'like <code>%1$s/site1</code> and <code>%1$s/site2</code>', 'subdirectory examples' ),
+					$hostname
+				); ?></td>
+			</tr>
+		</table>
+
+<?php
+	endif;
+
+		if ( WP_CONTENT_DIR != ABSPATH . 'wp-content' && ( allow_subdirectory_install() || ! allow_subdomain_install() ) )
+			echo '<div class="error inline"><p><strong>' . __( 'Warning:' ) . '</strong> ' . __( 'Subdirectory networks may not be fully compatible with custom wp-content directories.' ) . '</p></div>';
+
+		$is_www = ( 0 === strpos( $hostname, 'www.' ) );
+		if ( $is_www ) :
+		?>
+		<h3><?php esc_html_e( 'Server Address' ); ?></h3>
+		<p><?php printf(
+			/* translators: 1: site url 2: host name 3. www */
+			__( 'We recommend you change your siteurl to %1$s before enabling the network feature. It will still be possible to visit your site using the %3$s prefix with an address like %2$s but any links will not have the %3$s prefix.' ),
+			'<code>' . substr( $hostname, 4 ) . '</code>',
+			'<code>' . $hostname . '</code>',
+			'<code>www</code>'
+		); ?></p>
+		<table class="form-table">
+			<tr>
+				<th scope='row'><?php esc_html_e( 'Server Address' ); ?></th>
+				<td>
+					<?php printf(
+						/* translators: %s: host name */
+						__( 'The internet address of your network will be %s.' ),
+						'<code>' . $hostname . '</code>'
+					); ?>
+				</td>
+			</tr>
+		</table>
+		<?php endif; ?>
+
+		<h3><?php esc_html_e( 'Network Details' ); ?></h3>
+		<table class="form-table">
+		<?php if ( 'localhost' == $hostname ) : ?>
+			<tr>
+				<th scope="row"><?php esc_html_e( 'Sub-directory Installation' ); ?></th>
+				<td><?php
+					printf(
+						/* translators: 1: localhost 2: localhost.localdomain */
+						__( 'Because you are using %1$s, the sites in your WordPress network must use sub-directories. Consider using %2$s if you wish to use sub-domains.' ),
+						'<code>localhost</code>',
+						'<code>localhost.localdomain</code>'
+					);
+					// Uh oh:
+					if ( !allow_subdirectory_install() )
+						echo ' <strong>' . __( 'Warning:' ) . ' ' . __( 'The main site in a sub-directory installation will need to use a modified permalink structure, potentially breaking existing links.' ) . '</strong>';
+				?></td>
+			</tr>
+		<?php elseif ( !allow_subdomain_install() ) : ?>
+			<tr>
+				<th scope="row"><?php esc_html_e( 'Sub-directory Installation' ); ?></th>
+				<td><?php
+					_e( 'Because your installation is in a directory, the sites in your WordPress network must use sub-directories.' );
+					// Uh oh:
+					if ( !allow_subdirectory_install() )
+						echo ' <strong>' . __( 'Warning:' ) . ' ' . __( 'The main site in a sub-directory installation will need to use a modified permalink structure, potentially breaking existing links.' ) . '</strong>';
+				?></td>
+			</tr>
+		<?php elseif ( !allow_subdirectory_install() ) : ?>
+			<tr>
+				<th scope="row"><?php esc_html_e( 'Sub-domain Installation' ); ?></th>
+				<td><?php _e( 'Because your installation is not new, the sites in your WordPress network must use sub-domains.' );
+					echo ' <strong>' . __( 'The main site in a sub-directory installation will need to use a modified permalink structure, potentially breaking existing links.' ) . '</strong>';
+				?></td>
+			</tr>
+		<?php endif; ?>
+		<?php if ( ! $is_www ) : ?>
+			<tr>
+				<th scope='row'><?php esc_html_e( 'Server Address' ); ?></th>
+				<td>
+					<?php printf(
+						/* translators: %s: host name */
+						__( 'The internet address of your network will be %s.' ),
+						'<code>' . $hostname . '</code>'
+					); ?>
+				</td>
+			</tr>
+		<?php endif; ?>
+			<tr>
+				<th scope='row'><?php esc_html_e( 'Network Title' ); ?></th>
+				<td>
+					<input name='sitename' type='text' size='45' value='<?php echo esc_attr( $site_name ); ?>' />
+					<p class="description">
+						<?php _e( 'What would you like to call your network?' ); ?>
+					</p>
+				</td>
+			</tr>
+			<tr>
+				<th scope='row'><?php esc_html_e( 'Network Admin Email' ); ?></th>
+				<td>
+					<input name='email' type='text' size='45' value='<?php echo esc_attr( $admin_email ); ?>' />
+					<p class="description">
+						<?php _e( 'Your email address.' ); ?>
+					</p>
+				</td>
+			</tr>
+		</table>
+		<?php submit_button( __( 'Install' ), 'primary', 'submit' ); ?>
+	</form>
+	<?php
+}
+
+/**
+ * Prints step 2 for Network installation process.
+ *
+ * @since 3.0.0
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
+ *
+ * @param WP_Error $errors
+ */
+function network_step2( $errors = false ) {
+	global $wpdb;
+
+	$hostname          = get_clean_basedomain();
+	$slashed_home      = trailingslashit( get_option( 'home' ) );
+	$base              = parse_url( $slashed_home, PHP_URL_PATH );
+	$document_root_fix = str_replace( '\\', '/', realpath( $_SERVER['DOCUMENT_ROOT'] ) );
+	$abspath_fix       = str_replace( '\\', '/', ABSPATH );
+	$home_path         = 0 === strpos( $abspath_fix, $document_root_fix ) ? $document_root_fix . $base : get_home_path();
+	$wp_siteurl_subdir = preg_replace( '#^' . preg_quote( $home_path, '#' ) . '#', '', $abspath_fix );
+	$rewrite_base      = ! empty( $wp_siteurl_subdir ) ? ltrim( trailingslashit( $wp_siteurl_subdir ), '/' ) : '';
+
+
+	$location_of_wp_config = $abspath_fix;
+	if ( ! file_exists( ABSPATH . 'wp-config.php' ) && file_exists( dirname( ABSPATH ) . '/wp-config.php' ) ) {
+		$location_of_wp_config = dirname( $abspath_fix );
+	}
+	$location_of_wp_config = trailingslashit( $location_of_wp_config );
+
+	// Wildcard DNS message.
+	if ( is_wp_error( $errors ) )
+		echo '<div class="error">' . $errors->get_error_message() . '</div>';
+
+	if ( $_POST ) {
+		if ( allow_subdomain_install() )
+			$subdomain_install = allow_subdirectory_install() ? ! empty( $_POST['subdomain_install'] ) : true;
+		else
+			$subdomain_install = false;
+	} else {
+		if ( is_multisite() ) {
+			$subdomain_install = is_subdomain_install();
+?>
+	<p><?php _e( 'The original configuration steps are shown here for reference.' ); ?></p>
+<?php
+		} else {
+			$subdomain_install = (bool) $wpdb->get_var( "SELECT meta_value FROM $wpdb->sitemeta WHERE site_id = 1 AND meta_key = 'subdomain_install'" );
+?>
+	<div class="error"><p><strong><?php _e( 'Warning:' ); ?></strong> <?php _e( 'An existing WordPress network was detected.' ); ?></p></div>
+	<p><?php _e( 'Please complete the configuration steps. To create a new network, you will need to empty or remove the network database tables.' ); ?></p>
+<?php
+		}
+	}
+
+	$subdir_match          = $subdomain_install ? '' : '([_0-9a-zA-Z-]+/)?';
+	$subdir_replacement_01 = $subdomain_install ? '' : '$1';
+	$subdir_replacement_12 = $subdomain_install ? '$1' : '$2';
+
+	if ( $_POST || ! is_multisite() ) {
+?>
+		<h3><?php esc_html_e( 'Enabling the Network' ); ?></h3>
+		<p><?php _e( 'Complete the following steps to enable the features for creating a network of sites.' ); ?></p>
+		<div class="updated inline"><p><?php
+			if ( file_exists( $home_path . '.htaccess' ) ) {
+				echo '<strong>' . __( 'Caution:' ) . '</strong> ';
+				printf(
+					/* translators: 1: wp-config.php 2: .htaccess */
+					__( 'We recommend you back up your existing %1$s and %2$s files.' ),
+					'<code>wp-config.php</code>',
+					'<code>.htaccess</code>'
+				);
+			} elseif ( file_exists( $home_path . 'web.config' ) ) {
+				echo '<strong>' . __( 'Caution:' ) . '</strong> ';
+				printf(
+					/* translators: 1: wp-config.php 2: web.config */
+					__( 'We recommend you back up your existing %1$s and %2$s files.' ),
+					'<code>wp-config.php</code>',
+					'<code>web.config</code>'
+				);
+			} else {
+				echo '<strong>' . __( 'Caution:' ) . '</strong> ';
+				printf(
+					/* translators: 1: wp-config.php */
+					__( 'We recommend you back up your existing %s file.' ),
+					'<code>wp-config.php</code>'
+				);
+			}
+		?></p></div>
+<?php
+	}
+?>
+		<ol>
+			<li><p><?php printf(
+				/* translators: 1: wp-config.php 2: location of wp-config file, 3: translated version of "That's all, stop editing! Happy blogging." */
+				__( 'Add the following to your %1$s file in %2$s <strong>above</strong> the line reading %3$s:' ),
+				'<code>wp-config.php</code>',
+				'<code>' . $location_of_wp_config . '</code>',
+				/*
+				 * translators: This string should only be translated if wp-config-sample.php is localized.
+				 * You can check the localized release package or
+				 * https://i18n.svn.wordpress.org/<locale code>/branches/<wp version>/dist/wp-config-sample.php
+				 */
+				'<code>/* ' . __( 'That&#8217;s all, stop editing! Happy blogging.' ) . ' */</code>'
+			); ?></p>
+				<textarea class="code" readonly="readonly" cols="100" rows="7">
+define('MULTISITE', true);
+define('SUBDOMAIN_INSTALL', <?php echo $subdomain_install ? 'true' : 'false'; ?>);
+define('DOMAIN_CURRENT_SITE', '<?php echo $hostname; ?>');
+define('PATH_CURRENT_SITE', '<?php echo $base; ?>');
+define('SITE_ID_CURRENT_SITE', 1);
+define('BLOG_ID_CURRENT_SITE', 1);
+</textarea>
+<?php
+	$keys_salts = array( 'AUTH_KEY' => '', 'SECURE_AUTH_KEY' => '', 'LOGGED_IN_KEY' => '', 'NONCE_KEY' => '', 'AUTH_SALT' => '', 'SECURE_AUTH_SALT' => '', 'LOGGED_IN_SALT' => '', 'NONCE_SALT' => '' );
+	foreach ( $keys_salts as $c => $v ) {
+		if ( defined( $c ) )
+			unset( $keys_salts[ $c ] );
+	}
+
+	if ( ! empty( $keys_salts ) ) {
+		$keys_salts_str = '';
+		$from_api = wp_remote_get( 'https://api.wordpress.org/secret-key/1.1/salt/' );
+		if ( is_wp_error( $from_api ) ) {
+			foreach ( $keys_salts as $c => $v ) {
+				$keys_salts_str .= "\ndefine( '$c', '" . wp_generate_password( 64, true, true ) . "' );";
+			}
+		} else {
+			$from_api = explode( "\n", wp_remote_retrieve_body( $from_api ) );
+			foreach ( $keys_salts as $c => $v ) {
+				$keys_salts_str .= "\ndefine( '$c', '" . substr( array_shift( $from_api ), 28, 64 ) . "' );";
+			}
+		}
+		$num_keys_salts = count( $keys_salts );
+?>
+	<p>
+		<?php
+			if ( 1 == $num_keys_salts ) {
+				printf(
+					/* translators: 1: wp-config.php */
+					__( 'This unique authentication key is also missing from your %s file.' ),
+					'<code>wp-config.php</code>'
+				);
+			} else {
+				printf(
+					/* translators: 1: wp-config.php */
+					__( 'These unique authentication keys are also missing from your %s file.' ),
+					'<code>wp-config.php</code>'
+				);
+			}
+		?>
+		<?php _e( 'To make your installation more secure, you should also add:' ); ?>
+	</p>
+	<textarea class="code" readonly="readonly" cols="100" rows="<?php echo $num_keys_salts; ?>"><?php echo esc_textarea( $keys_salts_str ); ?></textarea>
+<?php
+	}
+?>
+</li>
+<?php
+	if ( iis7_supports_permalinks() ) :
+		// IIS doesn't support RewriteBase, all your RewriteBase are belong to us
+		$iis_subdir_match = ltrim( $base, '/' ) . $subdir_match;
+		$iis_rewrite_base = ltrim( $base, '/' ) . $rewrite_base;
+		$iis_subdir_replacement = $subdomain_install ? '' : '{R:1}';
+
+		$web_config_file = '<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <system.webServer>
+        <rewrite>
+            <rules>
+                <rule name="WordPress Rule 1" stopProcessing="true">
+                    <match url="^index\.php$" ignoreCase="false" />
+                    <action type="None" />
+                </rule>';
+				if ( is_multisite() && get_site_option( 'ms_files_rewriting' ) ) {
+					$web_config_file .= '
+                <rule name="WordPress Rule for Files" stopProcessing="true">
+                    <match url="^' . $iis_subdir_match . 'files/(.+)" ignoreCase="false" />
+                    <action type="Rewrite" url="' . $iis_rewrite_base . WPINC . '/ms-files.php?file={R:1}" appendQueryString="false" />
+                </rule>';
+                }
+                $web_config_file .= '
+                <rule name="WordPress Rule 2" stopProcessing="true">
+                    <match url="^' . $iis_subdir_match . 'wp-admin$" ignoreCase="false" />
+                    <action type="Redirect" url="' . $iis_subdir_replacement . 'wp-admin/" redirectType="Permanent" />
+                </rule>
+                <rule name="WordPress Rule 3" stopProcessing="true">
+                    <match url="^" ignoreCase="false" />
+                    <conditions logicalGrouping="MatchAny">
+                        <add input="{REQUEST_FILENAME}" matchType="IsFile" ignoreCase="false" />
+                        <add input="{REQUEST_FILENAME}" matchType="IsDirectory" ignoreCase="false" />
+                    </conditions>
+                    <action type="None" />
+                </rule>
+                <rule name="WordPress Rule 4" stopProcessing="true">
+                    <match url="^' . $iis_subdir_match . '(wp-(content|admin|includes).*)" ignoreCase="false" />
+                    <action type="Rewrite" url="' . $iis_rewrite_base . '{R:1}" />
+                </rule>
+                <rule name="WordPress Rule 5" stopProcessing="true">
+                    <match url="^' . $iis_subdir_match . '([_0-9a-zA-Z-]+/)?(.*\.php)$" ignoreCase="false" />
+                    <action type="Rewrite" url="' . $iis_rewrite_base . '{R:2}" />
+                </rule>
+                <rule name="WordPress Rule 6" stopProcessing="true">
+                    <match url="." ignoreCase="false" />
+                    <action type="Rewrite" url="index.php" />
+                </rule>
+            </rules>
+        </rewrite>
+    </system.webServer>
+</configuration>
+';
+
+		echo '<li><p>';
+		printf(
+			/* translators: 1: a filename like .htaccess. 2: a file path. */
+			__( 'Add the following to your %1$s file in %2$s, <strong>replacing</strong> other WordPress rules:' ),
+			'<code>web.config</code>',
+			'<code>' . $home_path . '</code>'
+		);
+		echo '</p>';
+		if ( ! $subdomain_install && WP_CONTENT_DIR != ABSPATH . 'wp-content' )
+			echo '<p><strong>' . __( 'Warning:' ) . ' ' . __( 'Subdirectory networks may not be fully compatible with custom wp-content directories.' ) . '</strong></p>';
+		?>
+		<textarea class="code" readonly="readonly" cols="100" rows="20"><?php echo esc_textarea( $web_config_file ); ?>
+		</textarea></li>
+		</ol>
+
+	<?php else : // end iis7_supports_permalinks(). construct an htaccess file instead:
+
+		$ms_files_rewriting = '';
+		if ( is_multisite() && get_site_option( 'ms_files_rewriting' ) ) {
+			$ms_files_rewriting = "\n# uploaded files\nRewriteRule ^";
+			$ms_files_rewriting .= $subdir_match . "files/(.+) {$rewrite_base}" . WPINC . "/ms-files.php?file={$subdir_replacement_12} [L]" . "\n";
+		}
+
+		$htaccess_file = <<<EOF
+RewriteEngine On
+RewriteBase {$base}
+RewriteRule ^index\.php$ - [L]
+{$ms_files_rewriting}
+# add a trailing slash to /wp-admin
+RewriteRule ^{$subdir_match}wp-admin$ {$subdir_replacement_01}wp-admin/ [R=301,L]
+
+RewriteCond %{REQUEST_FILENAME} -f [OR]
+RewriteCond %{REQUEST_FILENAME} -d
+RewriteRule ^ - [L]
+RewriteRule ^{$subdir_match}(wp-(content|admin|includes).*) {$rewrite_base}{$subdir_replacement_12} [L]
+RewriteRule ^{$subdir_match}(.*\.php)$ {$rewrite_base}$subdir_replacement_12 [L]
+RewriteRule . index.php [L]
+
+EOF;
+
+		echo '<li><p>';
+		printf(
+			/* translators: 1: a filename like .htaccess. 2: a file path. */
+			__( 'Add the following to your %1$s file in %2$s, <strong>replacing</strong> other WordPress rules:' ),
+			'<code>.htaccess</code>',
+			'<code>' . $home_path . '</code>'
+		);
+		echo '</p>';
+		if ( ! $subdomain_install && WP_CONTENT_DIR != ABSPATH . 'wp-content' )
+			echo '<p><strong>' . __( 'Warning:' ) . ' ' . __( 'Subdirectory networks may not be fully compatible with custom wp-content directories.' ) . '</strong></p>';
+		?>
+		<textarea class="code" readonly="readonly" cols="100" rows="<?php echo substr_count( $htaccess_file, "\n" ) + 1; ?>">
+<?php echo esc_textarea( $htaccess_file ); ?></textarea></li>
+		</ol>
+
+	<?php endif; // end IIS/Apache code branches.
+
+	if ( !is_multisite() ) { ?>
+		<p><?php _e( 'Once you complete these steps, your network is enabled and configured. You will have to log in again.' ); ?> <a href="<?php echo esc_url( wp_login_url() ); ?>"><?php _e( 'Log In' ); ?></a></p>
+<?php
+	}
+}