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 */
15define( 'WP_INSTALLING', true );
16
17/**
18 * We are blissfully unaware of anything.
19 */
20define( 'WP_SETUP_CONFIG', true );
21
22/**
23 * Disable error reporting
24 *
25 * Set this to error_reporting( -1 ) for debugging
26 */
27error_reporting( 0 );
28
29if ( ! defined( 'ABSPATH' ) ) {
30 define( 'ABSPATH', dirname( __DIR__ ) . '/' );
31}
32
33require ABSPATH . 'wp-settings.php';
34
35/** Load WordPress Administration Upgrade API */
36require_once ABSPATH . 'wp-admin/includes/upgrade.php';
37
38/** Load WordPress Translation Installation API */
39require_once ABSPATH . 'wp-admin/includes/translation-install.php';
40
41nocache_headers();
42
43// Support wp-config-sample.php one level up, for the develop repo.
44if ( 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 $config_file = file( dirname( ABSPATH ) . '/wp-config-sample.php' );
48} else {
49 wp_die(
50 sprintf(
51 /* translators: %s: wp-config-sample.php */
52 __( 'Sorry, I need a %s file to work from. Please re-upload this file to your WordPress installation.' ),
53 '<code>wp-config-sample.php</code>'
54 )
55 );
56}
57
58// Check if wp-config.php has been created.
59if ( file_exists( ABSPATH . 'wp-config.php' ) ) {
60 wp_die(
61 '<p>' . sprintf(
62 /* translators: 1: wp-config.php, 2: install.php */
63 __( 'The file %1$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$s">installing now</a>.' ),
64 '<code>wp-config.php</code>',
65 'install.php'
66 ) . '</p>',
67 409
68 );
69}
70
71// Check if wp-config.php exists above the root directory but is not part of another installation.
72if ( @file_exists( ABSPATH . '../wp-config.php' ) && ! @file_exists( ABSPATH . '../wp-settings.php' ) ) {
73 wp_die(
74 '<p>' . sprintf(
75 /* translators: 1: wp-config.php, 2: install.php */
76 __( 'The file %1$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 * @param string|string[] $body_classes Class attribute values for the body tag.
93 */
94function setup_config_display_header( $body_classes = array() ) {
95 $body_classes = (array) $body_classes;
96 $body_classes[] = 'wp-core-ui';
97 $dir_attr = '';
98 if ( is_rtl() ) {
99 $body_classes[] = 'rtl';
100 $dir_attr = ' dir="rtl"';
101 }
102
103 header( 'Content-Type: text/html; charset=utf-8' );
104 ?>
105<!DOCTYPE html>
106<html<?php echo $dir_attr; ?>>
107<head>
108 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
109 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
110 <meta name="robots" content="noindex,nofollow" />
111 <title><?php _e( 'WordPress › Setup Configuration File' ); ?></title>
112 <?php wp_admin_css( 'install', true ); ?>
113</head>
114<body class="<?php echo implode( ' ', $body_classes ); ?>">
115<p id="logo"><?php _e( 'WordPress' ); ?></p>
116 <?php
117} // End function setup_config_display_header();
118
119/**
120 * @global string $wp_local_package Locale code of the package.
121 * @global WP_Locale $wp_locale WordPress date and time locale object.
122 */
123$language = '';
124if ( ! empty( $_REQUEST['language'] ) ) {
125 $language = preg_replace( '/[^a-zA-Z0-9_]/', '', $_REQUEST['language'] );
126} elseif ( isset( $GLOBALS['wp_local_package'] ) ) {
127 $language = $GLOBALS['wp_local_package'];
128}
129
130switch ( $step ) {
131 case -1:
132 if ( wp_can_install_language_pack() && empty( $language ) ) {
133 $languages = wp_get_available_translations();
134 if ( $languages ) {
135 setup_config_display_header( 'language-chooser' );
136 echo '<h1 class="screen-reader-text">Select a default language</h1>';
137 echo '<form id="setup" method="post" action="?step=0">';
138 wp_install_language_form( $languages );
139 echo '</form>';
140 break;
141 }
142 }
143
144 // Deliberately fall through if we can't reach the translations API.
145
146 case 0:
147 if ( ! empty( $language ) ) {
148 $loaded_language = wp_download_language_pack( $language );
149 if ( $loaded_language ) {
150 load_default_textdomain( $loaded_language );
151 $GLOBALS['wp_locale'] = new WP_Locale();
152 }
153 }
154
155 setup_config_display_header();
156 $step_1 = 'setup-config.php?step=1';
157 if ( isset( $_REQUEST['noapi'] ) ) {
158 $step_1 .= '&noapi';
159 }
160 if ( ! empty( $loaded_language ) ) {
161 $step_1 .= '&language=' . $loaded_language;
162 }
163 ?>
164<h1 class="screen-reader-text">
165 <?php
166 /* translators: Hidden accessibility text. */
167 _e( 'Before getting started' );
168 ?>
169</h1>
170<p><?php _e( 'Welcome to WordPress. Before getting started, you will need to know the following items.' ); ?></p>
171<ol>
172 <li><?php _e( 'Database name' ); ?></li>
173 <li><?php _e( 'Database username' ); ?></li>
174 <li><?php _e( 'Database password' ); ?></li>
175 <li><?php _e( 'Database host' ); ?></li>
176 <li><?php _e( 'Table prefix (if you want to run more than one WordPress in a single database)' ); ?></li>
177</ol>
178<p>
179 <?php
180 printf(
181 /* translators: %s: wp-config.php */
182 __( 'This information is being used to create a %s file.' ),
183 '<code>wp-config.php</code>'
184 );
185 ?>
186 <strong>
187 <?php
188 printf(
189 /* translators: 1: wp-config-sample.php, 2: wp-config.php */
190 __( 'If for any reason this automatic file creation does not work, do not worry. All this does is fill in the database information to a configuration file. You may also simply open %1$s in a text editor, fill in your information, and save it as %2$s.' ),
191 '<code>wp-config-sample.php</code>',
192 '<code>wp-config.php</code>'
193 );
194 ?>
195 </strong>
196 <?php
197 printf(
198 /* translators: 1: Documentation URL, 2: wp-config.php */
199 __( 'Need more help? <a href="%1$s">Read the support article on %2$s</a>.' ),
200 __( 'https://developer.wordpress.org/advanced-administration/wordpress/wp-config/' ),
201 '<code>wp-config.php</code>'
202 );
203 ?>
204</p>
205<p><?php _e( 'In all likelihood, these items were supplied to you by your web host. If you do not have this information, then you will need to contact them before you can continue. If you are ready…' ); ?></p>
206
207<p class="step"><a href="<?php echo $step_1; ?>" class="button button-large"><?php _e( 'Let’s go!' ); ?></a></p>
208 <?php
209 break;
210
211 case 1:
212 load_default_textdomain( $language );
213 $GLOBALS['wp_locale'] = new WP_Locale();
214
215 setup_config_display_header();
216
217 $autofocus = wp_is_mobile() ? '' : ' autofocus';
218 ?>
219<h1 class="screen-reader-text">
220 <?php
221 /* translators: Hidden accessibility text. */
222 _e( 'Set up your database connection' );
223 ?>
224</h1>
225<form method="post" action="setup-config.php?step=2">
226 <p><?php _e( 'Below you should enter your database connection details. If you are not sure about these, contact your host.' ); ?></p>
227 <table class="form-table" role="presentation">
228 <tr>
229 <th scope="row"><label for="dbname"><?php _e( 'Database Name' ); ?></label></th>
230 <td><input name="dbname" id="dbname" type="text" aria-describedby="dbname-desc" size="25" placeholder="wordpress"<?php echo $autofocus; ?> />
231 <p id="dbname-desc"><?php _e( 'The name of the database you want to use with WordPress.' ); ?></p></td>
232 </tr>
233 <tr>
234 <th scope="row"><label for="uname"><?php _e( 'Username' ); ?></label></th>
235 <td><input name="uname" id="uname" type="text" aria-describedby="uname-desc" size="25" placeholder="<?php echo htmlspecialchars( _x( 'username', 'example username' ), ENT_QUOTES ); ?>" />
236 <p id="uname-desc"><?php _e( 'Your database username.' ); ?></p></td>
237 </tr>
238 <tr>
239 <th scope="row"><label for="pwd"><?php _e( 'Password' ); ?></label></th>
240 <td>
241 <div class="wp-pwd">
242 <input name="pwd" id="pwd" type="password" class="regular-text" data-reveal="1" aria-describedby="pwd-desc" size="25" placeholder="<?php echo htmlspecialchars( _x( 'password', 'example password' ), ENT_QUOTES ); ?>" autocomplete="off" spellcheck="false" />
243 <button type="button" class="button pwd-toggle hide-if-no-js" data-toggle="0" data-start-masked="1" aria-label="<?php esc_attr_e( 'Show password' ); ?>">
244 <span class="dashicons dashicons-visibility"></span>
245 <span class="text"><?php _e( 'Show' ); ?></span>
246 </button>
247 </div>
248 <p id="pwd-desc"><?php _e( 'Your database password.' ); ?></p>
249 </td>
250 </tr>
251 <tr>
252 <th scope="row"><label for="dbhost"><?php _e( 'Database Host' ); ?></label></th>
253 <td><input name="dbhost" id="dbhost" type="text" aria-describedby="dbhost-desc" size="25" value="localhost" />
254 <p id="dbhost-desc">
255 <?php
256 /* translators: %s: localhost */
257 printf( __( 'You should be able to get this info from your web host, if %s does not work.' ), '<code>localhost</code>' );
258 ?>
259 </p></td>
260 </tr>
261 <tr>
262 <th scope="row"><label for="prefix"><?php _e( 'Table Prefix' ); ?></label></th>
263 <td><input name="prefix" id="prefix" type="text" aria-describedby="prefix-desc" value="wp_" size="25" />
264 <p id="prefix-desc"><?php _e( 'If you want to run multiple WordPress installations in a single database, change this.' ); ?></p></td>
265 </tr>
266 </table>
267 <?php
268 if ( isset( $_GET['noapi'] ) ) {
269 ?>
270<input name="noapi" type="hidden" value="1" /><?php } ?>
271 <input type="hidden" name="language" value="<?php echo esc_attr( $language ); ?>" />
272 <p class="step"><input name="submit" type="submit" value="<?php echo htmlspecialchars( __( 'Submit' ), ENT_QUOTES ); ?>" class="button button-large" /></p>
273</form>
274 <?php
275 wp_print_scripts( 'password-toggle' );
276 break;
277
278 case 2:
279 load_default_textdomain( $language );
280 $GLOBALS['wp_locale'] = new WP_Locale();
281
282 $dbname = trim( wp_unslash( $_POST['dbname'] ) );
283 $uname = trim( wp_unslash( $_POST['uname'] ) );
284 $pwd = trim( wp_unslash( $_POST['pwd'] ) );
285 $dbhost = trim( wp_unslash( $_POST['dbhost'] ) );
286 $prefix = trim( wp_unslash( $_POST['prefix'] ) );
287
288 $step_1 = 'setup-config.php?step=1';
289 $install = 'install.php';
290 if ( isset( $_REQUEST['noapi'] ) ) {
291 $step_1 .= '&noapi';
292 }
293
294 if ( ! empty( $language ) ) {
295 $step_1 .= '&language=' . $language;
296 $install .= '?language=' . $language;
297 } else {
298 $install .= '?language=en_US';
299 }
300
301 $tryagain_link = '</p><p class="step"><a href="' . $step_1 . '" onclick="javascript:history.go(-1);return false;" class="button button-large">' . __( 'Try Again' ) . '</a>';
302
303 if ( empty( $prefix ) ) {
304 wp_die( __( '<strong>Error:</strong> "Table Prefix" must not be empty.' ) . $tryagain_link );
305 }
306
307 // Validate $prefix: it can only contain letters, numbers and underscores.
308 if ( preg_match( '|[^a-z0-9_]|i', $prefix ) ) {
309 wp_die( __( '<strong>Error:</strong> "Table Prefix" can only contain numbers, letters, and underscores.' ) . $tryagain_link );
310 }
311
312 // Test the DB connection.
313 /**#@+
314 *
315 * @ignore
316 */
317 define( 'DB_NAME', $dbname );
318 define( 'DB_USER', $uname );
319 define( 'DB_PASSWORD', $pwd );
320 define( 'DB_HOST', $dbhost );
321 /**#@-*/
322
323 // Re-construct $wpdb with these new values.
324 unset( $wpdb );
325 require_wp_db();
326
327 /*
328 * The wpdb constructor bails when WP_SETUP_CONFIG is set, so we must
329 * fire this manually. We'll fail here if the values are no good.
330 */
331 $wpdb->db_connect();
332
333 if ( ! empty( $wpdb->error ) ) {
334 wp_die( $wpdb->error->get_error_message() . $tryagain_link );
335 }
336
337 $errors = $wpdb->suppress_errors();
338 $wpdb->query( "SELECT $prefix" );
339 $wpdb->suppress_errors( $errors );
340
341 if ( ! $wpdb->last_error ) {
342 // MySQL was able to parse the prefix as a value, which we don't want. Bail.
343 wp_die( __( '<strong>Error:</strong> "Table Prefix" is invalid.' ) );
344 }
345
346 // Generate keys and salts using secure CSPRNG; fallback to API if enabled; further fallback to original wp_generate_password().
347 try {
348 $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()-_ []{}<>~`+=,.;:/?|';
349 $max = strlen( $chars ) - 1;
350 for ( $i = 0; $i < 8; $i++ ) {
351 $key = '';
352 for ( $j = 0; $j < 64; $j++ ) {
353 $key .= substr( $chars, random_int( 0, $max ), 1 );
354 }
355 $secret_keys[] = $key;
356 }
357 } catch ( Exception $ex ) {
358 $no_api = isset( $_POST['noapi'] );
359
360 if ( ! $no_api ) {
361 $secret_keys = wp_remote_get( 'https://api.wordpress.org/secret-key/1.1/salt/' );
362 }
363
364 if ( $no_api || is_wp_error( $secret_keys ) ) {
365 $secret_keys = array();
366 for ( $i = 0; $i < 8; $i++ ) {
367 $secret_keys[] = wp_generate_password( 64, true, true );
368 }
369 } else {
370 $secret_keys = explode( "\n", wp_remote_retrieve_body( $secret_keys ) );
371 foreach ( $secret_keys as $k => $v ) {
372 $secret_keys[ $k ] = substr( $v, 28, 64 );
373 }
374 }
375 }
376
377 $key = 0;
378 foreach ( $config_file as $line_num => $line ) {
379 if ( str_starts_with( $line, '$table_prefix =' ) ) {
380 $config_file[ $line_num ] = '$table_prefix = \'' . addcslashes( $prefix, "\\'" ) . "';\r\n";
381 continue;
382 }
383
384 if ( ! preg_match( '/^define\(\s*\'([A-Z_]+)\',([ ]+)/', $line, $match ) ) {
385 continue;
386 }
387
388 $constant = $match[1];
389 $padding = $match[2];
390
391 switch ( $constant ) {
392 case 'DB_NAME':
393 case 'DB_USER':
394 case 'DB_PASSWORD':
395 case 'DB_HOST':
396 $config_file[ $line_num ] = "define( '" . $constant . "'," . $padding . "'" . addcslashes( constant( $constant ), "\\'" ) . "' );\r\n";
397 break;
398 case 'DB_CHARSET':
399 if ( 'utf8mb4' === $wpdb->charset || ( ! $wpdb->charset ) ) {
400 $config_file[ $line_num ] = "define( '" . $constant . "'," . $padding . "'utf8mb4' );\r\n";
401 }
402 break;
403 case 'AUTH_KEY':
404 case 'SECURE_AUTH_KEY':
405 case 'LOGGED_IN_KEY':
406 case 'NONCE_KEY':
407 case 'AUTH_SALT':
408 case 'SECURE_AUTH_SALT':
409 case 'LOGGED_IN_SALT':
410 case 'NONCE_SALT':
411 $config_file[ $line_num ] = "define( '" . $constant . "'," . $padding . "'" . $secret_keys[ $key++ ] . "' );\r\n";
412 break;
413 }
414 }
415 unset( $line );
416
417 if ( ! is_writable( ABSPATH ) ) :
418 setup_config_display_header();
419 ?>
420<p>
421 <?php
422 /* translators: %s: wp-config.php */
423 printf( __( 'Unable to write to %s file.' ), '<code>wp-config.php</code>' );
424 ?>
425</p>
426<p id="wp-config-description">
427 <?php
428 /* translators: %s: wp-config.php */
429 printf( __( 'You can create the %s file manually and paste the following text into it.' ), '<code>wp-config.php</code>' );
430
431 $config_text = '';
432
433 foreach ( $config_file as $line ) {
434 $config_text .= htmlentities( $line, ENT_COMPAT, 'UTF-8' );
435 }
436 ?>
437</p>
438<p class="configuration-rules-label"><label for="wp-config">
439 <?php
440 /* translators: %s: wp-config.php */
441 printf( __( 'Configuration rules for %s:' ), '<code>wp-config.php</code>' );
442 ?>
443 </label></p>
444<textarea id="wp-config" cols="98" rows="15" class="code" readonly="readonly" aria-describedby="wp-config-description"><?php echo $config_text; ?></textarea>
445<p><?php _e( 'After you’ve done that, click “Run the installation”.' ); ?></p>
446<p class="step"><a href="<?php echo $install; ?>" class="button button-large"><?php _e( 'Run the installation' ); ?></a></p>
447<script>
448(function(){
449if ( ! /iPad|iPod|iPhone/.test( navigator.userAgent ) ) {
450 var el = document.getElementById('wp-config');
451 el.focus();
452 el.select();
453}
454})();
455</script>
456 <?php
457 else :
458 /*
459 * If this file doesn't exist, then we are using the wp-config-sample.php
460 * file one level up, which is for the develop repo.
461 */
462 if ( file_exists( ABSPATH . 'wp-config-sample.php' ) ) {
463 $path_to_wp_config = ABSPATH . 'wp-config.php';
464 } else {
465 $path_to_wp_config = dirname( ABSPATH ) . '/wp-config.php';
466 }
467
468 $error_message = '';
469 $handle = fopen( $path_to_wp_config, 'w' );
470 /*
471 * Why check for the absence of false instead of checking for resource with is_resource()?
472 * To future-proof the check for when fopen returns object instead of resource, i.e. a known
473 * change coming in PHP.
474 */
475 if ( false !== $handle ) {
476 foreach ( $config_file as $line ) {
477 fwrite( $handle, $line );
478 }
479 fclose( $handle );
480 } else {
481 $wp_config_perms = fileperms( $path_to_wp_config );
482 if ( ! empty( $wp_config_perms ) && ! is_writable( $path_to_wp_config ) ) {
483 $error_message = sprintf(
484 /* translators: 1: wp-config.php, 2: Documentation URL. */
485 __( 'You need to make the file %1$s writable before you can save your changes. See <a href="%2$s">Changing File Permissions</a> for more information.' ),
486 '<code>wp-config.php</code>',
487 __( 'https://developer.wordpress.org/advanced-administration/server/file-permissions/' )
488 );
489 } else {
490 $error_message = sprintf(
491 /* translators: %s: wp-config.php */
492 __( 'Unable to write to %s file.' ),
493 '<code>wp-config.php</code>'
494 );
495 }
496 }
497
498 chmod( $path_to_wp_config, 0666 );
499 setup_config_display_header();
500
501 if ( false !== $handle ) :
502 ?>
503<h1 class="screen-reader-text">
504 <?php
505 /* translators: Hidden accessibility text. */
506 _e( 'Successful database connection' );
507 ?>
508</h1>
509<p><?php _e( 'All right, sparky! You’ve made it through this part of the installation. WordPress can now communicate with your database. If you are ready, time now to…' ); ?></p>
510
511<p class="step"><a href="<?php echo $install; ?>" class="button button-large"><?php _e( 'Run the installation' ); ?></a></p>
512 <?php
513 else :
514 printf( '<p>%s</p>', $error_message );
515 endif;
516 endif;
517 break;
518} // End of the steps switch.
519?>
520<?php wp_print_scripts( 'language-chooser' ); ?>
521</body>
522</html>
523