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<?php
/**
* WordPress Installer
*
* @package WordPress
* @subpackage Administration
*/

// Sanity check.
if ( false ) {
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Error: PHP is not running</title>
</head>
<body>
<h1 id="logo"><img alt="WordPress" src="images/wordpress-logo.png" /></h1>
<h2>Error: PHP is not running</h2>
<p>WordPress requires that your web server is running PHP. Your server does not have PHP installed, or PHP is turned off.</p>
</body>
</html>
<?php
}

/**
* We are installing WordPress.
*
* @since 1.5.1
* @var bool
*/
define( 'WP_INSTALLING', true );

/** Load WordPress Bootstrap */
require_once( dirname( dirname( __FILE__ ) ) . '/wp-load.php' );

/** Load WordPress Administration Upgrade API */
require_once( dirname( __FILE__ ) . '/includes/upgrade.php' );

/** Load wpdb */
require_once(dirname(dirname(__FILE__)) . '/wp-includes/wp-db.php');

$step = isset( $_GET['step'] ) ? $_GET['step'] : 0;

/**
* Display install header.
*
* @since 2.5.0
* @package WordPress
* @subpackage Installer
*/
function display_header() {
header( 'Content-Type: text/html; charset=utf-8' );
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" <?php language_attributes(); ?>>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title><?php _e( 'WordPress &rsaquo; Installation' ); ?></title>
<?php wp_admin_css( 'install', true ); ?>
</head>
<body>
<h1 id="logo"><img alt="WordPress" src="images/wordpress-logo.png" /></h1>

<?php
} // end display_header()

/**
* Display installer setup form.
*
* @since 2.8.0
* @package WordPress
* @subpackage Installer
*/
function display_setup_form( $error = null ) {
global $wpdb;
$user_table = ( $wpdb->get_var("SHOW TABLES LIKE '$wpdb->users'") != null );

// Ensure that Blogs appear in search engines by default
$blog_public = 1;
if ( ! empty( $_POST ) )
$blog_public = isset( $_POST['blog_public'] );

$weblog_title = isset( $_POST['weblog_title'] ) ? trim( stripslashes( $_POST['weblog_title'] ) ) : '';
$user_name = isset($_POST['user_name']) ? trim( stripslashes( $_POST['user_name'] ) ) : 'admin';
$admin_password = isset($_POST['admin_password']) ? trim( stripslashes( $_POST['admin_password'] ) ) : '';
$admin_email = isset( $_POST['admin_email'] ) ? trim( stripslashes( $_POST['admin_email'] ) ) : '';

if ( ! is_null( $error ) ) {
?>
<p class="message"><?php printf( __( '<strong>ERROR</strong>: %s' ), $error ); ?></p>
<?php } ?>
<form id="setup" method="post" action="install.php?step=2">
<table class="form-table">
<tr>
<th scope="row"><label for="weblog_title"><?php _e( 'Site Title' ); ?></label></th>
<td><input name="weblog_title" type="text" id="weblog_title" size="25" value="<?php echo esc_attr( $weblog_title ); ?>" /></td>
</tr>
<tr>
<th scope="row"><label for="user_name"><?php _e('Username'); ?></label></th>
<td>
<?php
if ( $user_table ) {
_e('User(s) already exists.');
} else {
?><input name="user_name" type="text" id="user_login" size="25" value="<?php echo esc_attr( sanitize_user( $user_name, true ) ); ?>" />
<p><?php _e( 'Usernames can have only alphanumeric characters, spaces, underscores, hyphens, periods and the @ symbol.' ); ?></p>
<?php
} ?>
</td>
</tr>
<?php if ( ! $user_table ) : ?>
<tr>
<th scope="row">
<label for="admin_password"><?php _e('Password, twice'); ?></label>
<p><?php _e('A password will be automatically generated for you if you leave this blank.'); ?></p>
</th>
<td>
<input name="admin_password" type="password" id="pass1" size="25" value="" />
<p><input name="admin_password2" type="password" id="pass2" size="25" value="" /></p>
<div id="pass-strength-result"><?php _e('Strength indicator'); ?></div>
<p><?php _e('Hint: The password should be at least seven characters long. To make it stronger, use upper and lower case letters, numbers and symbols like ! " ? $ % ^ &amp; ).'); ?></p>
</td>
</tr>
<?php endif; ?>
<tr>
<th scope="row"><label for="admin_email"><?php _e( 'Your E-mail' ); ?></label></th>
<td><input name="admin_email" type="text" id="admin_email" size="25" value="<?php echo esc_attr( $admin_email ); ?>" />
<p><?php _e( 'Double-check your email address before continuing.' ); ?></p></td>
</tr>
<tr>
<td colspan="2"><label><input type="checkbox" name="blog_public" value="1" <?php checked( $blog_public ); ?> /> <?php _e( 'Allow my site to appear in search engines like Google and Technorati.' ); ?></label></td>
</tr>
</table>
<p class="step"><input type="submit" name="Submit" value="<?php esc_attr_e( 'Install WordPress' ); ?>" class="button" /></p>
</form>
<?php
} // end display_setup_form()

// Let's check to make sure WP isn't already installed.
if ( is_blog_installed() ) {
display_header();
die( '<h1>' . __( 'Already Installed' ) . '</h1><p>' . __( 'You appear to have already installed WordPress. To reinstall please clear your old database tables first.' ) . '</p><p class="step"><a href="../wp-login.php" class="button">' . __('Log In') . '</a></p></body></html>' );
}

$php_version = phpversion();
$mysql_version = $wpdb->db_version();
$php_compat = version_compare( $php_version, $required_php_version, '>=' );
$mysql_compat = version_compare( $mysql_version, $required_mysql_version, '>=' ) || file_exists( WP_CONTENT_DIR . '/db.php' );

if ( !$mysql_compat && !$php_compat )
$compat = sprintf( __('You cannot install because <a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> requires PHP version %2$s or higher and MySQL version %3$s or higher. You are running PHP version %4$s and MySQL version %5$s.'), $wp_version, $required_php_version, $required_mysql_version, $php_version, $mysql_version );
elseif ( !$php_compat )
$compat = sprintf( __('You cannot install because <a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> requires PHP version %2$s or higher. You are running version %3$s.'), $wp_version, $required_php_version, $php_version );
elseif ( !$mysql_compat )
$compat = sprintf( __('You cannot install because <a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> requires MySQL version %2$s or higher. You are running version %3$s.'), $wp_version, $required_mysql_version, $mysql_version );

if ( !$mysql_compat || !$php_compat ) {
display_header();
die('<h1>' . __('Insufficient Requirements') . '</h1><p>' . $compat . '</p></body></html>');
}

switch($step) {
case 0: // Step 1
case 1: // Step 1, direct link.
display_header();
?>
<h1><?php _e( 'Welcome' ); ?></h1>
<p><?php printf( __( 'Welcome to the famous five minute WordPress installation process! You may want to browse the <a href="%s">ReadMe documentation</a> at your leisure. Otherwise, just fill in the information below and you&#8217;ll be on your way to using the most extendable and powerful personal publishing platform in the world.' ), '../readme.html' ); ?></p>

<h1><?php _e( 'Information needed' ); ?></h1>
<p><?php _e( 'Please provide the following information. Don&#8217;t worry, you can always change these settings later.' ); ?></p>

<?php
display_setup_form();
break;
case 2:
if ( ! empty( $wpdb->error ) )
wp_die( $wpdb->error->get_error_message() );

display_header();
// Fill in the data we gathered
$weblog_title = isset( $_POST['weblog_title'] ) ? trim( stripslashes( $_POST['weblog_title'] ) ) : '';
$user_name = isset($_POST['user_name']) ? trim( stripslashes( $_POST['user_name'] ) ) : 'admin';
$admin_password = isset($_POST['admin_password']) ? $_POST['admin_password'] : '';
$admin_password_check = isset($_POST['admin_password2']) ? $_POST['admin_password2'] : '';
$admin_email = isset( $_POST['admin_email'] ) ?trim( stripslashes( $_POST['admin_email'] ) ) : '';
$public = isset( $_POST['blog_public'] ) ? (int) $_POST['blog_public'] : 0;
// check e-mail address
$error = false;
if ( empty( $user_name ) ) {
// TODO: poka-yoke
display_setup_form( __('you must provide a valid username.') );
$error = true;
} elseif ( $user_name != sanitize_user( $user_name, true ) ) {
display_setup_form( __('the username you provided has invalid characters.') );
$error = true;
} elseif ( $admin_password != $admin_password_check ) {
// TODO: poka-yoke
display_setup_form( __( 'your passwords do not match. Please try again' ) );
$error = true;
} else if ( empty( $admin_email ) ) {
// TODO: poka-yoke
display_setup_form( __( 'you must provide an e-mail address.' ) );
$error = true;
} elseif ( ! is_email( $admin_email ) ) {
// TODO: poka-yoke
display_setup_form( __( 'that isn&#8217;t a valid e-mail address. E-mail addresses look like: <code>username@example.com</code>' ) );
$error = true;
}

if ( $error === false ) {
$wpdb->show_errors();
$result = wp_install($weblog_title, $user_name, $admin_email, $public, '', $admin_password);
extract( $result, EXTR_SKIP );
?>

<h1><?php _e( 'Success!' ); ?></h1>

<p><?php _e( 'WordPress has been installed. Were you expecting more steps? Sorry to disappoint.' ); ?></p>

<table class="form-table">
<tr>
<th><?php _e( 'Username' ); ?></th>
<td><code><?php echo esc_html( sanitize_user( $user_name, true ) ); ?></code></td>
</tr>
<tr>
<th><?php _e( 'Password' ); ?></th>
<td><?php
if ( ! empty( $password ) && empty($admin_password_check) )
echo '<code>'. esc_html($password) .'</code><br />';
echo "<p>$password_message</p>"; ?>
</td>
</tr>
</table>

<p class="step"><a href="../wp-login.php" class="button"><?php _e( 'Log In' ); ?></a></p>

<?php
}
break;
}
?>
<script type="text/javascript">var t = document.getElementById('weblog_title'); if (t){ t.focus(); }</script>
<script type="text/javascript" src="../wp-includes/js/jquery/jquery.js"></script>
<script type="text/javascript" src="js/password-strength-meter.js"></script>
<script type="text/javascript" src="js/user-profile.js"></script>
<script type="text/javascript" src="../wp-includes/js/l10n.js"></script>
<script type='text/javascript'>
/* <![CDATA[ */
var pwsL10n = {
empty: "<?php echo esc_js( __( 'Strength indicator' ) ); ?>",
short: "<?php echo esc_js( __( 'Very weak' ) ); ?>",
bad: "<?php echo esc_js( __( 'Weak' ) ); ?>",
good: "<?php echo esc_js( _x( 'Medium', 'password strength' ) ); ?>",
strong: "<?php echo esc_js( __( 'Strong' ) ); ?>",
mismatch: "<?php echo esc_js( __( 'Mismatch' ) ); ?>"
};
try{convertEntities(pwsL10n);}catch(e){};
/* ]]> */
</script>
</body>
</html>
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