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/wp-admin/includes/ -> network.php (source)

   1  <?php
   2  /**
   3   * WordPress Network Administration API.
   4   *
   5   * @package WordPress
   6   * @subpackage Administration
   7   * @since 4.4.0
   8   */
   9  
  10  /**
  11   * Check for an existing network.
  12   *
  13   * @since 3.0.0
  14   *
  15   * @global wpdb $wpdb WordPress database abstraction object.
  16   *
  17   * @return string|false Base domain if network exists, otherwise false.
  18   */
  19  function network_domain_check() {
  20      global $wpdb;
  21  
  22      $sql = $wpdb->prepare( 'SHOW TABLES LIKE %s', $wpdb->esc_like( $wpdb->site ) );
  23      if ( $wpdb->get_var( $sql ) ) {
  24          return $wpdb->get_var( "SELECT domain FROM $wpdb->site ORDER BY id ASC LIMIT 1" );
  25      }
  26      return false;
  27  }
  28  
  29  /**
  30   * Allow subdomain installation
  31   *
  32   * @since 3.0.0
  33   * @return bool Whether subdomain installation is allowed
  34   */
  35  function allow_subdomain_install() {
  36      $domain = preg_replace( '|https?://([^/]+)|', '$1', get_option( 'home' ) );
  37      if ( parse_url( get_option( 'home' ), PHP_URL_PATH ) || 'localhost' === $domain || preg_match( '|^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$|', $domain ) ) {
  38          return false;
  39      }
  40  
  41      return true;
  42  }
  43  
  44  /**
  45   * Allow subdirectory installation.
  46   *
  47   * @since 3.0.0
  48   *
  49   * @global wpdb $wpdb WordPress database abstraction object.
  50   *
  51   * @return bool Whether subdirectory installation is allowed
  52   */
  53  function allow_subdirectory_install() {
  54      global $wpdb;
  55  
  56      /**
  57       * Filters whether to enable the subdirectory installation feature in Multisite.
  58       *
  59       * @since 3.0.0
  60       *
  61       * @param bool $allow Whether to enable the subdirectory installation feature in Multisite.
  62       *                    Default false.
  63       */
  64      if ( apply_filters( 'allow_subdirectory_install', false ) ) {
  65          return true;
  66      }
  67  
  68      if ( defined( 'ALLOW_SUBDIRECTORY_INSTALL' ) && ALLOW_SUBDIRECTORY_INSTALL ) {
  69          return true;
  70      }
  71  
  72      $post = $wpdb->get_row( "SELECT ID FROM $wpdb->posts WHERE post_date < DATE_SUB(NOW(), INTERVAL 1 MONTH) AND post_status = 'publish'" );
  73      if ( empty( $post ) ) {
  74          return true;
  75      }
  76  
  77      return false;
  78  }
  79  
  80  /**
  81   * Get base domain of network.
  82   *
  83   * @since 3.0.0
  84   * @return string Base domain.
  85   */
  86  function get_clean_basedomain() {
  87      $existing_domain = network_domain_check();
  88      if ( $existing_domain ) {
  89          return $existing_domain;
  90      }
  91      $domain = preg_replace( '|https?://|', '', get_option( 'siteurl' ) );
  92      $slash  = strpos( $domain, '/' );
  93      if ( $slash ) {
  94          $domain = substr( $domain, 0, $slash );
  95      }
  96      return $domain;
  97  }
  98  
  99  /**
 100   * Prints step 1 for Network installation process.
 101   *
 102   * @todo Realistically, step 1 should be a welcome screen explaining what a Network is and such.
 103   *       Navigating to Tools > Network should not be a sudden "Welcome to a new install process!
 104   *       Fill this out and click here." See also contextual help todo.
 105   *
 106   * @since 3.0.0
 107   *
 108   * @global bool $is_apache
 109   *
 110   * @param false|WP_Error $errors Optional. Error object. Default false.
 111   */
 112  function network_step1( $errors = false ) {
 113      global $is_apache;
 114  
 115      if ( defined( 'DO_NOT_UPGRADE_GLOBAL_TABLES' ) ) {
 116          $cannot_define_constant_message  = '<strong>' . __( 'Error:' ) . '</strong> ';
 117          $cannot_define_constant_message .= sprintf(
 118              /* translators: %s: DO_NOT_UPGRADE_GLOBAL_TABLES */
 119              __( 'The constant %s cannot be defined when creating a network.' ),
 120              '<code>DO_NOT_UPGRADE_GLOBAL_TABLES</code>'
 121          );
 122  
 123          wp_admin_notice(
 124              $cannot_define_constant_message,
 125              array(
 126                  'additional_classes' => array( 'error' ),
 127              )
 128          );
 129  
 130          echo '</div>';
 131          require_once  ABSPATH . 'wp-admin/admin-footer.php';
 132          die();
 133      }
 134  
 135      $active_plugins = get_option( 'active_plugins' );
 136      if ( ! empty( $active_plugins ) ) {
 137          wp_admin_notice(
 138              '<strong>' . __( 'Warning:' ) . '</strong> ' . sprintf(
 139                  /* translators: %s: URL to Plugins screen. */
 140                  __( 'Please <a href="%s">deactivate your plugins</a> before enabling the Network feature.' ),
 141                  admin_url( 'plugins.php?plugin_status=active' )
 142              ),
 143              array( 'type' => 'warning' )
 144          );
 145          echo '<p>' . __( 'Once the network is created, you may reactivate your plugins.' ) . '</p>';
 146          echo '</div>';
 147          require_once  ABSPATH . 'wp-admin/admin-footer.php';
 148          die();
 149      }
 150  
 151      // Strip standard port from hostname.
 152      $hostname = preg_replace( '/(?::80|:443)$/', '', get_clean_basedomain() );
 153  
 154      echo '<form method="post">';
 155  
 156      wp_nonce_field( 'install-network-1' );
 157  
 158      $error_codes = array();
 159      if ( is_wp_error( $errors ) ) {
 160          $network_created_error_message = '<p><strong>' . __( 'Error: The network could not be created.' ) . '</strong></p>';
 161          foreach ( $errors->get_error_messages() as $error ) {
 162              $network_created_error_message .= "<p>$error</p>";
 163          }
 164          wp_admin_notice(
 165              $network_created_error_message,
 166              array(
 167                  'additional_classes' => array( 'error' ),
 168                  'paragraph_wrap'     => false,
 169              )
 170          );
 171          $error_codes = $errors->get_error_codes();
 172      }
 173  
 174      if ( ! empty( $_POST['sitename'] ) && ! in_array( 'empty_sitename', $error_codes, true ) ) {
 175          $site_name = $_POST['sitename'];
 176      } else {
 177          /* translators: %s: Default network title. */
 178          $site_name = sprintf( __( '%s Sites' ), get_option( 'blogname' ) );
 179      }
 180  
 181      if ( ! empty( $_POST['email'] ) && ! in_array( 'invalid_email', $error_codes, true ) ) {
 182          $admin_email = $_POST['email'];
 183      } else {
 184          $admin_email = get_option( 'admin_email' );
 185      }
 186      ?>
 187      <p><?php _e( 'Welcome to the Network installation process!' ); ?></p>
 188      <p><?php _e( 'Fill in the information below and you&#8217;ll be on your way to creating a network of WordPress sites. Configuration files will be created in the next step.' ); ?></p>
 189      <?php
 190  
 191      if ( isset( $_POST['subdomain_install'] ) ) {
 192          $subdomain_install = (bool) $_POST['subdomain_install'];
 193      } elseif ( apache_mod_loaded( 'mod_rewrite' ) ) { // Assume nothing.
 194          $subdomain_install = true;
 195      } elseif ( ! allow_subdirectory_install() ) {
 196          $subdomain_install = true;
 197      } else {
 198          $subdomain_install = false;
 199          $got_mod_rewrite   = got_mod_rewrite();
 200          if ( $got_mod_rewrite ) { // Dangerous assumptions.
 201              $message_class = 'updated';
 202              $message       = '<p><strong>' . __( 'Warning:' ) . '</strong> ';
 203              $message      .= '<p>' . sprintf(
 204                  /* translators: %s: mod_rewrite */
 205                  __( 'Please make sure the Apache %s module is installed as it will be used at the end of this installation.' ),
 206                  '<code>mod_rewrite</code>'
 207              ) . '</p>';
 208          } elseif ( $is_apache ) {
 209              $message_class = 'error';
 210              $message       = '<p><strong>' . __( 'Warning:' ) . '</strong> ';
 211              $message      .= sprintf(
 212                  /* translators: %s: mod_rewrite */
 213                  __( 'It looks like the Apache %s module is not installed.' ),
 214                  '<code>mod_rewrite</code>'
 215              ) . '</p>';
 216          }
 217  
 218          if ( $got_mod_rewrite || $is_apache ) { // Protect against mod_rewrite mimicry (but ! Apache).
 219              $message .= '<p>' . sprintf(
 220                  /* translators: 1: mod_rewrite, 2: mod_rewrite documentation URL, 3: Google search for mod_rewrite. */
 221                  __( 'If %1$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.' ),
 222                  '<code>mod_rewrite</code>',
 223                  'https://httpd.apache.org/docs/mod/mod_rewrite.html',
 224                  'https://www.google.com/search?q=apache+mod_rewrite'
 225              ) . '</p>';
 226  
 227              wp_admin_notice(
 228                  $message,
 229                  array(
 230                      'additional_classes' => array( $message_class, 'inline' ),
 231                      'paragraph_wrap'     => false,
 232                  )
 233              );
 234          }
 235      }
 236  
 237      if ( allow_subdomain_install() && allow_subdirectory_install() ) :
 238          ?>
 239          <h3><?php esc_html_e( 'Addresses of Sites in your Network' ); ?></h3>
 240          <p><?php _e( 'Please choose whether you would like sites in your WordPress network to use sub-domains or sub-directories.' ); ?>
 241              <strong><?php _e( 'You cannot change this later.' ); ?></strong></p>
 242          <p><?php _e( 'You will need a wildcard DNS record if you are going to use the virtual host (sub-domain) functionality.' ); ?></p>
 243          <?php // @todo Link to an MS readme? ?>
 244          <table class="form-table" role="presentation">
 245              <tr>
 246                  <th><label><input type="radio" name="subdomain_install" value="1"<?php checked( $subdomain_install ); ?> /> <?php _e( 'Sub-domains' ); ?></label></th>
 247                  <td>
 248                  <?php
 249                  printf(
 250                      /* translators: 1: Host name. */
 251                      _x( 'like <code>site1.%1$s</code> and <code>site2.%1$s</code>', 'subdomain examples' ),
 252                      $hostname
 253                  );
 254                  ?>
 255                  </td>
 256              </tr>
 257              <tr>
 258                  <th><label><input type="radio" name="subdomain_install" value="0"<?php checked( ! $subdomain_install ); ?> /> <?php _e( 'Sub-directories' ); ?></label></th>
 259                  <td>
 260                  <?php
 261                  printf(
 262                      /* translators: 1: Host name. */
 263                      _x( 'like <code>%1$s/site1</code> and <code>%1$s/site2</code>', 'subdirectory examples' ),
 264                      $hostname
 265                  );
 266                  ?>
 267                  </td>
 268              </tr>
 269          </table>
 270  
 271          <?php
 272      endif;
 273  
 274      if ( WP_CONTENT_DIR !== ABSPATH . 'wp-content' && ( allow_subdirectory_install() || ! allow_subdomain_install() ) ) {
 275          $subdirectory_warning_message  = '<strong>' . __( 'Warning:' ) . '</strong> ';
 276          $subdirectory_warning_message .= __( 'Subdirectory networks may not be fully compatible with custom wp-content directories.' );
 277          wp_admin_notice(
 278              $subdirectory_warning_message,
 279              array(
 280                  'additional_classes' => array( 'error', 'inline' ),
 281              )
 282          );
 283      }
 284  
 285      $is_www = str_starts_with( $hostname, 'www.' );
 286      if ( $is_www ) :
 287          ?>
 288          <h3><?php esc_html_e( 'Server Address' ); ?></h3>
 289          <p>
 290          <?php
 291          printf(
 292              /* translators: 1: Site URL, 2: Host name, 3: www. */
 293              __( 'You should consider changing your site domain to %1$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.' ),
 294              '<code>' . substr( $hostname, 4 ) . '</code>',
 295              '<code>' . $hostname . '</code>',
 296              '<code>www</code>'
 297          );
 298          ?>
 299          </p>
 300          <table class="form-table" role="presentation">
 301              <tr>
 302              <th scope='row'><?php esc_html_e( 'Server Address' ); ?></th>
 303              <td>
 304                  <?php
 305                      printf(
 306                          /* translators: %s: Host name. */
 307                          __( 'The internet address of your network will be %s.' ),
 308                          '<code>' . $hostname . '</code>'
 309                      );
 310                  ?>
 311                  </td>
 312              </tr>
 313          </table>
 314          <?php endif; ?>
 315  
 316          <h3><?php esc_html_e( 'Network Details' ); ?></h3>
 317          <table class="form-table" role="presentation">
 318          <?php if ( 'localhost' === $hostname ) : ?>
 319              <tr>
 320                  <th scope="row"><?php esc_html_e( 'Sub-directory Installation' ); ?></th>
 321                  <td>
 322                  <?php
 323                      printf(
 324                          /* translators: 1: localhost, 2: localhost.localdomain */
 325                          __( 'Because you are using %1$s, the sites in your WordPress network must use sub-directories. Consider using %2$s if you wish to use sub-domains.' ),
 326                          '<code>localhost</code>',
 327                          '<code>localhost.localdomain</code>'
 328                      );
 329                      // Uh oh:
 330                  if ( ! allow_subdirectory_install() ) {
 331                      echo ' <strong>' . __( 'Warning:' ) . ' ' . __( 'The main site in a sub-directory installation will need to use a modified permalink structure, potentially breaking existing links.' ) . '</strong>';
 332                  }
 333                  ?>
 334                  </td>
 335              </tr>
 336          <?php elseif ( ! allow_subdomain_install() ) : ?>
 337              <tr>
 338                  <th scope="row"><?php esc_html_e( 'Sub-directory Installation' ); ?></th>
 339                  <td>
 340                  <?php
 341                      _e( 'Because your installation is in a directory, the sites in your WordPress network must use sub-directories.' );
 342                      // Uh oh:
 343                  if ( ! allow_subdirectory_install() ) {
 344                      echo ' <strong>' . __( 'Warning:' ) . ' ' . __( 'The main site in a sub-directory installation will need to use a modified permalink structure, potentially breaking existing links.' ) . '</strong>';
 345                  }
 346                  ?>
 347                  </td>
 348              </tr>
 349          <?php elseif ( ! allow_subdirectory_install() ) : ?>
 350              <tr>
 351                  <th scope="row"><?php esc_html_e( 'Sub-domain Installation' ); ?></th>
 352                  <td>
 353                  <?php
 354                  _e( 'Because your installation is not new, the sites in your WordPress network must use sub-domains.' );
 355                      echo ' <strong>' . __( 'The main site in a sub-directory installation will need to use a modified permalink structure, potentially breaking existing links.' ) . '</strong>';
 356                  ?>
 357                  </td>
 358              </tr>
 359          <?php endif; ?>
 360          <?php if ( ! $is_www ) : ?>
 361              <tr>
 362                  <th scope='row'><?php esc_html_e( 'Server Address' ); ?></th>
 363                  <td>
 364                      <?php
 365                      printf(
 366                          /* translators: %s: Host name. */
 367                          __( 'The internet address of your network will be %s.' ),
 368                          '<code>' . $hostname . '</code>'
 369                      );
 370                      ?>
 371                  </td>
 372              </tr>
 373          <?php endif; ?>
 374              <tr>
 375                  <th scope='row'><label for="sitename"><?php esc_html_e( 'Network Title' ); ?></label></th>
 376                  <td>
 377                      <input name='sitename' id='sitename' type='text' size='45' value='<?php echo esc_attr( $site_name ); ?>' />
 378                      <p class="description">
 379                          <?php _e( 'What would you like to call your network?' ); ?>
 380                      </p>
 381                  </td>
 382              </tr>
 383              <tr>
 384                  <th scope='row'><label for="email"><?php esc_html_e( 'Network Admin Email' ); ?></label></th>
 385                  <td>
 386                      <input name='email' id='email' type='text' size='45' value='<?php echo esc_attr( $admin_email ); ?>' />
 387                      <p class="description">
 388                          <?php _e( 'Your email address.' ); ?>
 389                      </p>
 390                  </td>
 391              </tr>
 392          </table>
 393          <?php submit_button( __( 'Install' ), 'primary', 'submit' ); ?>
 394      </form>
 395      <?php
 396  }
 397  
 398  /**
 399   * Prints step 2 for Network installation process.
 400   *
 401   * @since 3.0.0
 402   *
 403   * @global wpdb $wpdb     WordPress database abstraction object.
 404   * @global bool $is_nginx Whether the server software is Nginx or something else.
 405   *
 406   * @param false|WP_Error $errors Optional. Error object. Default false.
 407   */
 408  function network_step2( $errors = false ) {
 409      global $wpdb, $is_nginx;
 410  
 411      $hostname          = get_clean_basedomain();
 412      $slashed_home      = trailingslashit( get_option( 'home' ) );
 413      $base              = parse_url( $slashed_home, PHP_URL_PATH );
 414      $document_root_fix = str_replace( '\\', '/', realpath( $_SERVER['DOCUMENT_ROOT'] ) );
 415      $abspath_fix       = str_replace( '\\', '/', ABSPATH );
 416      $home_path         = str_starts_with( $abspath_fix, $document_root_fix ) ? $document_root_fix . $base : get_home_path();
 417      $wp_siteurl_subdir = preg_replace( '#^' . preg_quote( $home_path, '#' ) . '#', '', $abspath_fix );
 418      $rewrite_base      = ! empty( $wp_siteurl_subdir ) ? ltrim( trailingslashit( $wp_siteurl_subdir ), '/' ) : '';
 419  
 420      $location_of_wp_config = $abspath_fix;
 421      if ( ! file_exists( ABSPATH . 'wp-config.php' ) && file_exists( dirname( ABSPATH ) . '/wp-config.php' ) ) {
 422          $location_of_wp_config = dirname( $abspath_fix );
 423      }
 424      $location_of_wp_config = trailingslashit( $location_of_wp_config );
 425  
 426      // Wildcard DNS message.
 427      if ( is_wp_error( $errors ) ) {
 428          wp_admin_notice(
 429              $errors->get_error_message(),
 430              array(
 431                  'additional_classes' => array( 'error' ),
 432              )
 433          );
 434      }
 435  
 436      if ( $_POST ) {
 437          if ( allow_subdomain_install() ) {
 438              $subdomain_install = allow_subdirectory_install() ? ! empty( $_POST['subdomain_install'] ) : true;
 439          } else {
 440              $subdomain_install = false;
 441          }
 442      } else {
 443          if ( is_multisite() ) {
 444              $subdomain_install = is_subdomain_install();
 445              ?>
 446      <p><?php _e( 'The original configuration steps are shown here for reference.' ); ?></p>
 447              <?php
 448          } else {
 449              $subdomain_install = (bool) $wpdb->get_var( "SELECT meta_value FROM $wpdb->sitemeta WHERE site_id = 1 AND meta_key = 'subdomain_install'" );
 450  
 451              wp_admin_notice(
 452                  '<strong>' . __( 'Warning:' ) . '</strong> ' . __( 'An existing WordPress network was detected.' ),
 453                  array(
 454                      'additional_classes' => array( 'error' ),
 455                  )
 456              );
 457              ?>
 458      <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>
 459              <?php
 460          }
 461      }
 462  
 463      $subdir_match          = $subdomain_install ? '' : '([_0-9a-zA-Z-]+/)?';
 464      $subdir_replacement_01 = $subdomain_install ? '' : '$1';
 465      $subdir_replacement_12 = $subdomain_install ? '$1' : '$2';
 466  
 467      if ( $_POST || ! is_multisite() ) {
 468          ?>
 469          <h3><?php esc_html_e( 'Enabling the Network' ); ?></h3>
 470          <p><?php _e( 'Complete the following steps to enable the features for creating a network of sites.' ); ?></p>
 471          <?php
 472          $notice_message = '<strong>' . __( 'Caution:' ) . '</strong> ';
 473          $notice_args    = array(
 474              'type'               => 'warning',
 475              'additional_classes' => array( 'inline' ),
 476          );
 477  
 478          if ( file_exists( $home_path . '.htaccess' ) ) {
 479              $notice_message .= sprintf(
 480                  /* translators: 1: wp-config.php, 2: .htaccess */
 481                  __( 'You should back up your existing %1$s and %2$s files.' ),
 482                  '<code>wp-config.php</code>',
 483                  '<code>.htaccess</code>'
 484              );
 485          } elseif ( file_exists( $home_path . 'web.config' ) ) {
 486              $notice_message .= sprintf(
 487                  /* translators: 1: wp-config.php, 2: web.config */
 488                  __( 'You should back up your existing %1$s and %2$s files.' ),
 489                  '<code>wp-config.php</code>',
 490                  '<code>web.config</code>'
 491              );
 492          } else {
 493              $notice_message .= sprintf(
 494                  /* translators: %s: wp-config.php */
 495                  __( 'You should back up your existing %s file.' ),
 496                  '<code>wp-config.php</code>'
 497              );
 498          }
 499  
 500          wp_admin_notice( $notice_message, $notice_args );
 501      }
 502      ?>
 503      <ol>
 504          <li><p id="network-wpconfig-rules-description">
 505          <?php
 506          printf(
 507              /* translators: 1: wp-config.php, 2: Location of wp-config file, 3: Translated version of "That's all, stop editing! Happy publishing." */
 508              __( 'Add the following to your %1$s file in %2$s <strong>above</strong> the line reading %3$s:' ),
 509              '<code>wp-config.php</code>',
 510              '<code>' . $location_of_wp_config . '</code>',
 511              /*
 512               * translators: This string should only be translated if wp-config-sample.php is localized.
 513               * You can check the localized release package or
 514               * https://i18n.svn.wordpress.org/<locale code>/branches/<wp version>/dist/wp-config-sample.php
 515               */
 516              '<code>/* ' . __( 'That&#8217;s all, stop editing! Happy publishing.' ) . ' */</code>'
 517          );
 518          ?>
 519          </p>
 520          <p class="configuration-rules-label"><label for="network-wpconfig-rules">
 521              <?php
 522              printf(
 523                  /* translators: %s: File name (wp-config.php, .htaccess or web.config). */
 524                  __( 'Network configuration rules for %s' ),
 525                  '<code>wp-config.php</code>'
 526              );
 527              ?>
 528          </label></p>
 529          <textarea id="network-wpconfig-rules" class="code" readonly="readonly" cols="100" rows="7" aria-describedby="network-wpconfig-rules-description">
 530  define( 'MULTISITE', true );
 531  define( 'SUBDOMAIN_INSTALL', <?php echo $subdomain_install ? 'true' : 'false'; ?> );
 532  define( 'DOMAIN_CURRENT_SITE', '<?php echo $hostname; ?>' );
 533  define( 'PATH_CURRENT_SITE', '<?php echo $base; ?>' );
 534  define( 'SITE_ID_CURRENT_SITE', 1 );
 535  define( 'BLOG_ID_CURRENT_SITE', 1 );
 536  </textarea>
 537          <?php
 538          $keys_salts = array(
 539              'AUTH_KEY'         => '',
 540              'SECURE_AUTH_KEY'  => '',
 541              'LOGGED_IN_KEY'    => '',
 542              'NONCE_KEY'        => '',
 543              'AUTH_SALT'        => '',
 544              'SECURE_AUTH_SALT' => '',
 545              'LOGGED_IN_SALT'   => '',
 546              'NONCE_SALT'       => '',
 547          );
 548          foreach ( $keys_salts as $c => $v ) {
 549              if ( defined( $c ) ) {
 550                  unset( $keys_salts[ $c ] );
 551              }
 552          }
 553  
 554          if ( ! empty( $keys_salts ) ) {
 555              $keys_salts_str = '';
 556              $from_api       = wp_remote_get( 'https://api.wordpress.org/secret-key/1.1/salt/' );
 557              if ( is_wp_error( $from_api ) ) {
 558                  foreach ( $keys_salts as $c => $v ) {
 559                      $keys_salts_str .= "\ndefine( '$c', '" . wp_generate_password( 64, true, true ) . "' );";
 560                  }
 561              } else {
 562                  $from_api = explode( "\n", wp_remote_retrieve_body( $from_api ) );
 563                  foreach ( $keys_salts as $c => $v ) {
 564                      $keys_salts_str .= "\ndefine( '$c', '" . substr( array_shift( $from_api ), 28, 64 ) . "' );";
 565                  }
 566              }
 567              $num_keys_salts = count( $keys_salts );
 568              ?>
 569          <p id="network-wpconfig-authentication-description">
 570              <?php
 571              if ( 1 === $num_keys_salts ) {
 572                  printf(
 573                      /* translators: %s: wp-config.php */
 574                      __( 'This unique authentication key is also missing from your %s file.' ),
 575                      '<code>wp-config.php</code>'
 576                  );
 577              } else {
 578                  printf(
 579                      /* translators: %s: wp-config.php */
 580                      __( 'These unique authentication keys are also missing from your %s file.' ),
 581                      '<code>wp-config.php</code>'
 582                  );
 583              }
 584              ?>
 585              <?php _e( 'To make your installation more secure, you should also add:' ); ?>
 586          </p>
 587          <p class="configuration-rules-label"><label for="network-wpconfig-authentication"><?php _e( 'Network configuration authentication keys' ); ?></label></p>
 588          <textarea id="network-wpconfig-authentication" class="code" readonly="readonly" cols="100" rows="<?php echo $num_keys_salts; ?>" aria-describedby="network-wpconfig-authentication-description"><?php echo esc_textarea( $keys_salts_str ); ?></textarea>
 589              <?php
 590          }
 591          ?>
 592          </li>
 593      <?php
 594      if ( iis7_supports_permalinks() ) :
 595          // IIS doesn't support RewriteBase, all your RewriteBase are belong to us.
 596          $iis_subdir_match       = ltrim( $base, '/' ) . $subdir_match;
 597          $iis_rewrite_base       = ltrim( $base, '/' ) . $rewrite_base;
 598          $iis_subdir_replacement = $subdomain_install ? '' : '{R:1}';
 599  
 600          $web_config_file = '<?xml version="1.0" encoding="UTF-8"?>
 601  <configuration>
 602      <system.webServer>
 603          <rewrite>
 604              <rules>
 605                  <rule name="WordPress Rule 1" stopProcessing="true">
 606                      <match url="^index\.php$" ignoreCase="false" />
 607                      <action type="None" />
 608                  </rule>';
 609          if ( is_multisite() && get_site_option( 'ms_files_rewriting' ) ) {
 610              $web_config_file .= '
 611                  <rule name="WordPress Rule for Files" stopProcessing="true">
 612                      <match url="^' . $iis_subdir_match . 'files/(.+)" ignoreCase="false" />
 613                      <action type="Rewrite" url="' . $iis_rewrite_base . WPINC . '/ms-files.php?file={R:1}" appendQueryString="false" />
 614                  </rule>';
 615          }
 616              $web_config_file .= '
 617                  <rule name="WordPress Rule 2" stopProcessing="true">
 618                      <match url="^' . $iis_subdir_match . 'wp-admin$" ignoreCase="false" />
 619                      <action type="Redirect" url="' . $iis_subdir_replacement . 'wp-admin/" redirectType="Permanent" />
 620                  </rule>
 621                  <rule name="WordPress Rule 3" stopProcessing="true">
 622                      <match url="^" ignoreCase="false" />
 623                      <conditions logicalGrouping="MatchAny">
 624                          <add input="{REQUEST_FILENAME}" matchType="IsFile" ignoreCase="false" />
 625                          <add input="{REQUEST_FILENAME}" matchType="IsDirectory" ignoreCase="false" />
 626                      </conditions>
 627                      <action type="None" />
 628                  </rule>
 629                  <rule name="WordPress Rule 4" stopProcessing="true">
 630                      <match url="^' . $iis_subdir_match . '(wp-(content|admin|includes).*)" ignoreCase="false" />
 631                      <action type="Rewrite" url="' . $iis_rewrite_base . '{R:1}" />
 632                  </rule>
 633                  <rule name="WordPress Rule 5" stopProcessing="true">
 634                      <match url="^' . $iis_subdir_match . '([_0-9a-zA-Z-]+/)?(.*\.php)$" ignoreCase="false" />
 635                      <action type="Rewrite" url="' . $iis_rewrite_base . '{R:2}" />
 636                  </rule>
 637                  <rule name="WordPress Rule 6" stopProcessing="true">
 638                      <match url="." ignoreCase="false" />
 639                      <action type="Rewrite" url="index.php" />
 640                  </rule>
 641              </rules>
 642          </rewrite>
 643      </system.webServer>
 644  </configuration>
 645  ';
 646  
 647              echo '<li><p id="network-webconfig-rules-description">';
 648              printf(
 649                  /* translators: 1: File name (.htaccess or web.config), 2: File path. */
 650                  __( 'Add the following to your %1$s file in %2$s, <strong>replacing</strong> other WordPress rules:' ),
 651                  '<code>web.config</code>',
 652                  '<code>' . $home_path . '</code>'
 653              );
 654          echo '</p>';
 655          if ( ! $subdomain_install && WP_CONTENT_DIR !== ABSPATH . 'wp-content' ) {
 656              echo '<p><strong>' . __( 'Warning:' ) . ' ' . __( 'Subdirectory networks may not be fully compatible with custom wp-content directories.' ) . '</strong></p>';
 657          }
 658          ?>
 659              <p class="configuration-rules-label"><label for="network-webconfig-rules">
 660                  <?php
 661                  printf(
 662                      /* translators: %s: File name (wp-config.php, .htaccess or web.config). */
 663                      __( 'Network configuration rules for %s' ),
 664                      '<code>web.config</code>'
 665                  );
 666                  ?>
 667              </label></p>
 668              <textarea id="network-webconfig-rules" class="code" readonly="readonly" cols="100" rows="20" aria-describedby="network-webconfig-rules-description"><?php echo esc_textarea( $web_config_file ); ?></textarea>
 669          </li>
 670      </ol>
 671  
 672          <?php
 673      elseif ( $is_nginx ) : // End iis7_supports_permalinks(). Link to Nginx documentation instead:
 674  
 675          echo '<li><p>';
 676          printf(
 677              /* translators: %s: Documentation URL. */
 678              __( 'It seems your network is running with Nginx web server. <a href="%s">Learn more about further configuration</a>.' ),
 679              __( 'https://developer.wordpress.org/advanced-administration/server/web-server/nginx/' )
 680          );
 681          echo '</p></li>';
 682  
 683      else : // End $is_nginx. Construct an .htaccess file instead:
 684  
 685          $ms_files_rewriting = '';
 686          if ( is_multisite() && get_site_option( 'ms_files_rewriting' ) ) {
 687              $ms_files_rewriting  = "\n# uploaded files\nRewriteRule ^";
 688              $ms_files_rewriting .= $subdir_match . "files/(.+) {$rewrite_base}" . WPINC . "/ms-files.php?file={$subdir_replacement_12} [L]" . "\n";
 689          }
 690  
 691          $htaccess_file = <<<EOF
 692  RewriteEngine On
 693  RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
 694  RewriteBase {$base}
 695  RewriteRule ^index\.php$ - [L]
 696  {$ms_files_rewriting}
 697  # add a trailing slash to /wp-admin
 698  RewriteRule ^{$subdir_match}wp-admin$ {$subdir_replacement_01}wp-admin/ [R=301,L]
 699  
 700  RewriteCond %{REQUEST_FILENAME} -f [OR]
 701  RewriteCond %{REQUEST_FILENAME} -d
 702  RewriteRule ^ - [L]
 703  RewriteRule ^{$subdir_match}(wp-(content|admin|includes).*) {$rewrite_base}{$subdir_replacement_12} [L]
 704  RewriteRule ^{$subdir_match}(.*\.php)$ {$rewrite_base}$subdir_replacement_12 [L]
 705  RewriteRule . index.php [L]
 706  
 707  EOF;
 708  
 709          echo '<li><p id="network-htaccess-rules-description">';
 710          printf(
 711              /* translators: 1: File name (.htaccess or web.config), 2: File path. */
 712              __( 'Add the following to your %1$s file in %2$s, <strong>replacing</strong> other WordPress rules:' ),
 713              '<code>.htaccess</code>',
 714              '<code>' . $home_path . '</code>'
 715          );
 716          echo '</p>';
 717          if ( ! $subdomain_install && WP_CONTENT_DIR !== ABSPATH . 'wp-content' ) {
 718              echo '<p><strong>' . __( 'Warning:' ) . ' ' . __( 'Subdirectory networks may not be fully compatible with custom wp-content directories.' ) . '</strong></p>';
 719          }
 720          ?>
 721              <p class="configuration-rules-label"><label for="network-htaccess-rules">
 722                  <?php
 723                  printf(
 724                      /* translators: %s: File name (wp-config.php, .htaccess or web.config). */
 725                      __( 'Network configuration rules for %s' ),
 726                      '<code>.htaccess</code>'
 727                  );
 728                  ?>
 729              </label></p>
 730              <textarea id="network-htaccess-rules" class="code" readonly="readonly" cols="100" rows="<?php echo substr_count( $htaccess_file, "\n" ) + 1; ?>" aria-describedby="network-htaccess-rules-description"><?php echo esc_textarea( $htaccess_file ); ?></textarea>
 731          </li>
 732      </ol>
 733  
 734          <?php
 735      endif; // End IIS/Nginx/Apache code branches.
 736  
 737      if ( ! is_multisite() ) {
 738          ?>
 739          <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>
 740          <?php
 741      }
 742  }


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