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/wp-admin/ -> setup-config.php (source)

   1  <?php
   2  /**
   3   * Retrieves and creates the wp-config.php file.
   4   *
   5   * The permissions for the base directory must allow for writing files in order
   6   * for the wp-config.php to be created using this page.
   7   *
   8   * @package WordPress
   9   * @subpackage Administration
  10   */
  11  
  12  /**
  13   * We are installing.
  14   */
  15  define( 'WP_INSTALLING', true );
  16  
  17  /**
  18   * We are blissfully unaware of anything.
  19   */
  20  define( 'WP_SETUP_CONFIG', true );
  21  
  22  /**
  23   * Disable error reporting
  24   *
  25   * Set this to error_reporting( -1 ) for debugging
  26   */
  27  error_reporting( 0 );
  28  
  29  if ( ! defined( 'ABSPATH' ) ) {
  30      define( 'ABSPATH', dirname( __DIR__ ) . '/' );
  31  }
  32  
  33  require  ABSPATH . 'wp-settings.php';
  34  
  35  /** Load WordPress Administration Upgrade API */
  36  require_once ABSPATH . 'wp-admin/includes/upgrade.php';
  37  
  38  /** Load WordPress Translation Installation API */
  39  require_once ABSPATH . 'wp-admin/includes/translation-install.php';
  40  
  41  nocache_headers();
  42  
  43  // Support wp-config-sample.php one level up, for the develop repo.
  44  if ( file_exists( ABSPATH . 'wp-config-sample.php' ) ) {
  45      $config_file = file( ABSPATH . 'wp-config-sample.php' );
  46  } elseif ( file_exists( dirname( ABSPATH ) . '/wp-config-sample.php' ) ) {
  47      $config_file = file( dirname( ABSPATH ) . '/wp-config-sample.php' );
  48  } else {
  49      wp_die(
  50          sprintf(
  51              /* translators: %s: wp-config-sample.php */
  52              __( 'Sorry, I need a %s file to work from. Please re-upload this file to your WordPress installation.' ),
  53              '<code>wp-config-sample.php</code>'
  54          )
  55      );
  56  }
  57  
  58  // Check if wp-config.php has been created.
  59  if ( file_exists( ABSPATH . 'wp-config.php' ) ) {
  60      wp_die(
  61          '<p>' . sprintf(
  62              /* translators: 1: wp-config.php, 2: install.php */
  63              __( 'The file %1$s already exists. If you need to reset any of the configuration items in this file, please delete it first. You may try <a href="%2$s">installing now</a>.' ),
  64              '<code>wp-config.php</code>',
  65              'install.php'
  66          ) . '</p>',
  67          409
  68      );
  69  }
  70  
  71  // Check if wp-config.php exists above the root directory but is not part of another installation.
  72  if ( @file_exists( ABSPATH . '../wp-config.php' ) && ! @file_exists( ABSPATH . '../wp-settings.php' ) ) {
  73      wp_die(
  74          '<p>' . sprintf(
  75              /* translators: 1: wp-config.php, 2: install.php */
  76              __( 'The file %1$s already exists one level above your WordPress installation. If you need to reset any of the configuration items in this file, please delete it first. You may try <a href="%2$s">installing now</a>.' ),
  77              '<code>wp-config.php</code>',
  78              'install.php'
  79          ) . '</p>',
  80          409
  81      );
  82  }
  83  
  84  $step = isset( $_GET['step'] ) ? (int) $_GET['step'] : -1;
  85  
  86  /**
  87   * Display setup wp-config.php file header.
  88   *
  89   * @ignore
  90   * @since 2.3.0
  91   *
  92   * @global string    $wp_local_package Locale code of the package.
  93   * @global WP_Locale $wp_locale        WordPress date and time locale object.
  94   *
  95   * @param string|array $body_classes
  96   */
  97  function setup_config_display_header( $body_classes = array() ) {
  98      $body_classes   = (array) $body_classes;
  99      $body_classes[] = 'wp-core-ui';
 100      $dir_attr       = '';
 101      if ( is_rtl() ) {
 102          $body_classes[] = 'rtl';
 103          $dir_attr       = ' dir="rtl"';
 104      }
 105  
 106      header( 'Content-Type: text/html; charset=utf-8' );
 107      ?>
 108  <!DOCTYPE html>
 109  <html<?php echo $dir_attr; ?>>
 110  <head>
 111      <meta name="viewport" content="width=device-width" />
 112      <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 113      <meta name="robots" content="noindex,nofollow" />
 114      <title><?php _e( 'WordPress &rsaquo; Setup Configuration File' ); ?></title>
 115      <?php wp_admin_css( 'install', true ); ?>
 116  </head>
 117  <body class="<?php echo implode( ' ', $body_classes ); ?>">
 118  <p id="logo"><?php _e( 'WordPress' ); ?></p>
 119      <?php
 120  } // End function setup_config_display_header();
 121  
 122  $language = '';
 123  if ( ! empty( $_REQUEST['language'] ) ) {
 124      $language = preg_replace( '/[^a-zA-Z0-9_]/', '', $_REQUEST['language'] );
 125  } elseif ( isset( $GLOBALS['wp_local_package'] ) ) {
 126      $language = $GLOBALS['wp_local_package'];
 127  }
 128  
 129  switch ( $step ) {
 130      case -1:
 131          if ( wp_can_install_language_pack() && empty( $language ) ) {
 132              $languages = wp_get_available_translations();
 133              if ( $languages ) {
 134                  setup_config_display_header( 'language-chooser' );
 135                  echo '<h1 class="screen-reader-text">Select a default language</h1>';
 136                  echo '<form id="setup" method="post" action="?step=0">';
 137                  wp_install_language_form( $languages );
 138                  echo '</form>';
 139                  break;
 140              }
 141          }
 142  
 143          // Deliberately fall through if we can't reach the translations API.
 144  
 145      case 0:
 146          if ( ! empty( $language ) ) {
 147              $loaded_language = wp_download_language_pack( $language );
 148              if ( $loaded_language ) {
 149                  load_default_textdomain( $loaded_language );
 150                  $GLOBALS['wp_locale'] = new WP_Locale();
 151              }
 152          }
 153  
 154          setup_config_display_header();
 155          $step_1 = 'setup-config.php?step=1';
 156          if ( isset( $_REQUEST['noapi'] ) ) {
 157              $step_1 .= '&amp;noapi';
 158          }
 159          if ( ! empty( $loaded_language ) ) {
 160              $step_1 .= '&amp;language=' . $loaded_language;
 161          }
 162          ?>
 163  <h1 class="screen-reader-text"><?php _e( 'Before getting started' ); ?></h1>
 164  <p><?php _e( 'Welcome to WordPress. Before getting started, we need some information on the database. You will need to know the following items before proceeding.' ); ?></p>
 165  <ol>
 166      <li><?php _e( 'Database name' ); ?></li>
 167      <li><?php _e( 'Database username' ); ?></li>
 168      <li><?php _e( 'Database password' ); ?></li>
 169      <li><?php _e( 'Database host' ); ?></li>
 170      <li><?php _e( 'Table prefix (if you want to run more than one WordPress in a single database)' ); ?></li>
 171  </ol>
 172  <p>
 173          <?php
 174          printf(
 175              /* translators: %s: wp-config.php */
 176              __( 'We&#8217;re going to use this information to create a %s file.' ),
 177              '<code>wp-config.php</code>'
 178          );
 179          ?>
 180      <strong>
 181          <?php
 182          printf(
 183              /* translators: 1: wp-config-sample.php, 2: wp-config.php */
 184              __( 'If for any reason this automatic file creation doesn&#8217;t work, don&#8217;t worry. All this does is fill in the database information to a configuration file. You may also simply open %1$s in a text editor, fill in your information, and save it as %2$s.' ),
 185              '<code>wp-config-sample.php</code>',
 186              '<code>wp-config.php</code>'
 187          );
 188          ?>
 189      </strong>
 190          <?php
 191          printf(
 192              /* translators: %s: Documentation URL. */
 193              __( 'Need more help? <a href="%s">We got it</a>.' ),
 194              __( 'https://wordpress.org/support/article/editing-wp-config-php/' )
 195          );
 196          ?>
 197  </p>
 198  <p><?php _e( 'In all likelihood, these items were supplied to you by your Web Host. If you don&#8217;t have this information, then you will need to contact them before you can continue. If you&#8217;re all ready&hellip;' ); ?></p>
 199  
 200  <p class="step"><a href="<?php echo $step_1; ?>" class="button button-large"><?php _e( 'Let&#8217;s go!' ); ?></a></p>
 201          <?php
 202          break;
 203  
 204      case 1:
 205          load_default_textdomain( $language );
 206          $GLOBALS['wp_locale'] = new WP_Locale();
 207  
 208          setup_config_display_header();
 209  
 210          $autofocus = wp_is_mobile() ? '' : ' autofocus';
 211          ?>
 212  <h1 class="screen-reader-text"><?php _e( 'Set up your database connection' ); ?></h1>
 213  <form method="post" action="setup-config.php?step=2">
 214      <p><?php _e( 'Below you should enter your database connection details. If you&#8217;re not sure about these, contact your host.' ); ?></p>
 215      <table class="form-table" role="presentation">
 216          <tr>
 217              <th scope="row"><label for="dbname"><?php _e( 'Database Name' ); ?></label></th>
 218              <td><input name="dbname" id="dbname" type="text" aria-describedby="dbname-desc" size="25" value="wordpress"<?php echo $autofocus; ?>/></td>
 219              <td id="dbname-desc"><?php _e( 'The name of the database you want to use with WordPress.' ); ?></td>
 220          </tr>
 221          <tr>
 222              <th scope="row"><label for="uname"><?php _e( 'Username' ); ?></label></th>
 223              <td><input name="uname" id="uname" type="text" aria-describedby="uname-desc" size="25" value="<?php echo htmlspecialchars( _x( 'username', 'example username' ), ENT_QUOTES ); ?>" /></td>
 224              <td id="uname-desc"><?php _e( 'Your database username.' ); ?></td>
 225          </tr>
 226          <tr>
 227              <th scope="row"><label for="pwd"><?php _e( 'Password' ); ?></label></th>
 228              <td><input name="pwd" id="pwd" type="text" aria-describedby="pwd-desc" size="25" value="<?php echo htmlspecialchars( _x( 'password', 'example password' ), ENT_QUOTES ); ?>" autocomplete="off" /></td>
 229              <td id="pwd-desc"><?php _e( 'Your database password.' ); ?></td>
 230          </tr>
 231          <tr>
 232              <th scope="row"><label for="dbhost"><?php _e( 'Database Host' ); ?></label></th>
 233              <td><input name="dbhost" id="dbhost" type="text" aria-describedby="dbhost-desc" size="25" value="localhost" /></td>
 234              <td id="dbhost-desc">
 235              <?php
 236                  /* translators: %s: localhost */
 237                  printf( __( 'You should be able to get this info from your web host, if %s doesn&#8217;t work.' ), '<code>localhost</code>' );
 238              ?>
 239              </td>
 240          </tr>
 241          <tr>
 242              <th scope="row"><label for="prefix"><?php _e( 'Table Prefix' ); ?></label></th>
 243              <td><input name="prefix" id="prefix" type="text" aria-describedby="prefix-desc" value="wp_" size="25" /></td>
 244              <td id="prefix-desc"><?php _e( 'If you want to run multiple WordPress installations in a single database, change this.' ); ?></td>
 245          </tr>
 246      </table>
 247          <?php
 248          if ( isset( $_GET['noapi'] ) ) {
 249              ?>
 250  <input name="noapi" type="hidden" value="1" /><?php } ?>
 251      <input type="hidden" name="language" value="<?php echo esc_attr( $language ); ?>" />
 252      <p class="step"><input name="submit" type="submit" value="<?php echo htmlspecialchars( __( 'Submit' ), ENT_QUOTES ); ?>" class="button button-large" /></p>
 253  </form>
 254          <?php
 255          break;
 256  
 257      case 2:
 258          load_default_textdomain( $language );
 259          $GLOBALS['wp_locale'] = new WP_Locale();
 260  
 261          $dbname = trim( wp_unslash( $_POST['dbname'] ) );
 262          $uname  = trim( wp_unslash( $_POST['uname'] ) );
 263          $pwd    = trim( wp_unslash( $_POST['pwd'] ) );
 264          $dbhost = trim( wp_unslash( $_POST['dbhost'] ) );
 265          $prefix = trim( wp_unslash( $_POST['prefix'] ) );
 266  
 267          $step_1  = 'setup-config.php?step=1';
 268          $install = 'install.php';
 269          if ( isset( $_REQUEST['noapi'] ) ) {
 270              $step_1 .= '&amp;noapi';
 271          }
 272  
 273          if ( ! empty( $language ) ) {
 274              $step_1  .= '&amp;language=' . $language;
 275              $install .= '?language=' . $language;
 276          } else {
 277              $install .= '?language=en_US';
 278          }
 279  
 280          $tryagain_link = '</p><p class="step"><a href="' . $step_1 . '" onclick="javascript:history.go(-1);return false;" class="button button-large">' . __( 'Try Again' ) . '</a>';
 281  
 282          if ( empty( $prefix ) ) {
 283              wp_die( __( '<strong>Error</strong>: "Table Prefix" must not be empty.' ) . $tryagain_link );
 284          }
 285  
 286          // Validate $prefix: it can only contain letters, numbers and underscores.
 287          if ( preg_match( '|[^a-z0-9_]|i', $prefix ) ) {
 288              wp_die( __( '<strong>Error</strong>: "Table Prefix" can only contain numbers, letters, and underscores.' ) . $tryagain_link );
 289          }
 290  
 291          // Test the DB connection.
 292          /**#@+
 293           *
 294           * @ignore
 295           */
 296          define( 'DB_NAME', $dbname );
 297          define( 'DB_USER', $uname );
 298          define( 'DB_PASSWORD', $pwd );
 299          define( 'DB_HOST', $dbhost );
 300          /**#@-*/
 301  
 302          // Re-construct $wpdb with these new values.
 303          unset( $wpdb );
 304          require_wp_db();
 305  
 306          /*
 307          * The wpdb constructor bails when WP_SETUP_CONFIG is set, so we must
 308          * fire this manually. We'll fail here if the values are no good.
 309          */
 310          $wpdb->db_connect();
 311  
 312          if ( ! empty( $wpdb->error ) ) {
 313              wp_die( $wpdb->error->get_error_message() . $tryagain_link );
 314          }
 315  
 316          $errors = $wpdb->hide_errors();
 317          $wpdb->query( "SELECT $prefix" );
 318          $wpdb->show_errors( $errors );
 319          if ( ! $wpdb->last_error ) {
 320              // MySQL was able to parse the prefix as a value, which we don't want. Bail.
 321              wp_die( __( '<strong>Error</strong>: "Table Prefix" is invalid.' ) );
 322          }
 323  
 324          // Generate keys and salts using secure CSPRNG; fallback to API if enabled; further fallback to original wp_generate_password().
 325          try {
 326              $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()-_ []{}<>~`+=,.;:/?|';
 327              $max   = strlen( $chars ) - 1;
 328              for ( $i = 0; $i < 8; $i++ ) {
 329                  $key = '';
 330                  for ( $j = 0; $j < 64; $j++ ) {
 331                      $key .= substr( $chars, random_int( 0, $max ), 1 );
 332                  }
 333                  $secret_keys[] = $key;
 334              }
 335          } catch ( Exception $ex ) {
 336              $no_api = isset( $_POST['noapi'] );
 337  
 338              if ( ! $no_api ) {
 339                  $secret_keys = wp_remote_get( 'https://api.wordpress.org/secret-key/1.1/salt/' );
 340              }
 341  
 342              if ( $no_api || is_wp_error( $secret_keys ) ) {
 343                  $secret_keys = array();
 344                  for ( $i = 0; $i < 8; $i++ ) {
 345                      $secret_keys[] = wp_generate_password( 64, true, true );
 346                  }
 347              } else {
 348                  $secret_keys = explode( "\n", wp_remote_retrieve_body( $secret_keys ) );
 349                  foreach ( $secret_keys as $k => $v ) {
 350                      $secret_keys[ $k ] = substr( $v, 28, 64 );
 351                  }
 352              }
 353          }
 354  
 355          $key = 0;
 356          foreach ( $config_file as $line_num => $line ) {
 357              if ( '$table_prefix =' === substr( $line, 0, 15 ) ) {
 358                  $config_file[ $line_num ] = '$table_prefix = \'' . addcslashes( $prefix, "\\'" ) . "';\r\n";
 359                  continue;
 360              }
 361  
 362              if ( ! preg_match( '/^define\(\s*\'([A-Z_]+)\',([ ]+)/', $line, $match ) ) {
 363                  continue;
 364              }
 365  
 366              $constant = $match[1];
 367              $padding  = $match[2];
 368  
 369              switch ( $constant ) {
 370                  case 'DB_NAME':
 371                  case 'DB_USER':
 372                  case 'DB_PASSWORD':
 373                  case 'DB_HOST':
 374                      $config_file[ $line_num ] = "define( '" . $constant . "'," . $padding . "'" . addcslashes( constant( $constant ), "\\'" ) . "' );\r\n";
 375                      break;
 376                  case 'DB_CHARSET':
 377                      if ( 'utf8mb4' === $wpdb->charset || ( ! $wpdb->charset && $wpdb->has_cap( 'utf8mb4' ) ) ) {
 378                          $config_file[ $line_num ] = "define( '" . $constant . "'," . $padding . "'utf8mb4' );\r\n";
 379                      }
 380                      break;
 381                  case 'AUTH_KEY':
 382                  case 'SECURE_AUTH_KEY':
 383                  case 'LOGGED_IN_KEY':
 384                  case 'NONCE_KEY':
 385                  case 'AUTH_SALT':
 386                  case 'SECURE_AUTH_SALT':
 387                  case 'LOGGED_IN_SALT':
 388                  case 'NONCE_SALT':
 389                      $config_file[ $line_num ] = "define( '" . $constant . "'," . $padding . "'" . $secret_keys[ $key++ ] . "' );\r\n";
 390                      break;
 391              }
 392          }
 393          unset( $line );
 394  
 395          if ( ! is_writable( ABSPATH ) ) :
 396              setup_config_display_header();
 397              ?>
 398      <p>
 399              <?php
 400              /* translators: %s: wp-config.php */
 401              printf( __( 'Unable to write to %s file.' ), '<code>wp-config.php</code>' );
 402              ?>
 403  </p>
 404  <p>
 405              <?php
 406              /* translators: %s: wp-config.php */
 407              printf( __( 'You can create the %s file manually and paste the following text into it.' ), '<code>wp-config.php</code>' );
 408  
 409              $config_text = '';
 410  
 411              foreach ( $config_file as $line ) {
 412                  $config_text .= htmlentities( $line, ENT_COMPAT, 'UTF-8' );
 413              }
 414              ?>
 415  </p>
 416  <textarea id="wp-config" cols="98" rows="15" class="code" readonly="readonly"><?php echo $config_text; ?></textarea>
 417  <p><?php _e( 'After you&#8217;ve done that, click &#8220;Run the installation&#8221;.' ); ?></p>
 418  <p class="step"><a href="<?php echo $install; ?>" class="button button-large"><?php _e( 'Run the installation' ); ?></a></p>
 419  <script>
 420  (function(){
 421  if ( ! /iPad|iPod|iPhone/.test( navigator.userAgent ) ) {
 422      var el = document.getElementById('wp-config');
 423      el.focus();
 424      el.select();
 425  }
 426  })();
 427  </script>
 428              <?php
 429      else :
 430          /*
 431           * If this file doesn't exist, then we are using the wp-config-sample.php
 432           * file one level up, which is for the develop repo.
 433           */
 434          if ( file_exists( ABSPATH . 'wp-config-sample.php' ) ) {
 435              $path_to_wp_config = ABSPATH . 'wp-config.php';
 436          } else {
 437              $path_to_wp_config = dirname( ABSPATH ) . '/wp-config.php';
 438          }
 439  
 440          $handle = fopen( $path_to_wp_config, 'w' );
 441          foreach ( $config_file as $line ) {
 442              fwrite( $handle, $line );
 443          }
 444          fclose( $handle );
 445          chmod( $path_to_wp_config, 0666 );
 446          setup_config_display_header();
 447          ?>
 448  <h1 class="screen-reader-text"><?php _e( 'Successful database connection' ); ?></h1>
 449  <p><?php _e( 'All right, sparky! You&#8217;ve made it through this part of the installation. WordPress can now communicate with your database. If you are ready, time now to&hellip;' ); ?></p>
 450  
 451  <p class="step"><a href="<?php echo $install; ?>" class="button button-large"><?php _e( 'Run the installation' ); ?></a></p>
 452          <?php
 453      endif;
 454          break;
 455  }
 456  ?>
 457  <?php wp_print_scripts( 'language-chooser' ); ?>
 458  </body>
 459  </html>


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