<?php

/**

 * WordPress Upgrade API

 *

 * Most of the functions are pluggable and can be overwritten.

 *

 * @package WordPress

 * @subpackage Administration

 */

/** Include user install customize script. */

if ( file_exists(WP_CONTENT_DIR . '/install.php') )

	require (WP_CONTENT_DIR . '/install.php');

/** WordPress Administration API */

require_once(ABSPATH . 'wp-admin/includes/admin.php');

/** WordPress Schema API */

require_once(ABSPATH . 'wp-admin/includes/schema.php');

if ( !function_exists('wp_install') ) :

/**

 * Installs the site.

 *

 * Runs the required functions to set up and populate the database,

 * including primary admin user and initial options.

 *

 * @since 2.1.0

 *

 * @param string $blog_title    Blog title.

 * @param string $user_name     User's username.

 * @param string $user_email    User's email.

 * @param bool   $public        Whether blog is public.

 * @param string $deprecated    Optional. Not used.

 * @param string $user_password Optional. User's chosen password. Default empty (random password).

 * @param string $language      Optional. Language chosen. Default empty.

 * @return array Array keys 'url', 'user_id', 'password', and 'password_message'.

 */

function wp_install( $blog_title, $user_name, $user_email, $public, $deprecated = '', $user_password = '', $language = '' ) {

	if ( !empty( $deprecated ) )

		_deprecated_argument( __FUNCTION__, '2.6' );

	wp_check_mysql_version();

	wp_cache_flush();

	make_db_current_silent();

	populate_options();

	populate_roles();

	update_option('blogname', $blog_title);

	update_option('admin_email', $user_email);

	update_option('blog_public', $public);

	if ( $language ) {

		update_option( 'WPLANG', $language );

	}

	$guessurl = wp_guess_url();

	update_option('siteurl', $guessurl);

	// If not a public blog, don't ping.

	if ( ! $public )

		update_option('default_pingback_flag', 0);

	/*

	 * Create default user. If the user already exists, the user tables are

	 * being shared among blogs. Just set the role in that case.

	 */

	$user_id = username_exists($user_name);

	$user_password = trim($user_password);

	$email_password = false;

	if ( !$user_id && empty($user_password) ) {

		$user_password = wp_generate_password( 12, false );

		$message = __('<strong><em>Note that password</em></strong> carefully! It is a <em>random</em> password that was generated just for you.');

		$user_id = wp_create_user($user_name, $user_password, $user_email);

		update_user_option($user_id, 'default_password_nag', true, true);

		$email_password = true;

	} elseif ( ! $user_id ) {

		// Password has been provided

		$message = '<em>'.__('Your chosen password.').'</em>';

		$user_id = wp_create_user($user_name, $user_password, $user_email);

	} else {

		$message = __('User already exists. Password inherited.');

	}

	$user = new WP_User($user_id);

	$user->set_role('administrator');

	wp_install_defaults($user_id);

	wp_install_maybe_enable_pretty_permalinks();

	flush_rewrite_rules();

	wp_new_blog_notification($blog_title, $guessurl, $user_id, ($email_password ? $user_password : __('The password you chose during the install.') ) );

	wp_cache_flush();

	/**

	 * Fires after a site is fully installed.

	 *

	 * @since 3.9.0

	 *

	 * @param WP_User $user The site owner.

	 */

	do_action( 'wp_install', $user );

	return array('url' => $guessurl, 'user_id' => $user_id, 'password' => $user_password, 'password_message' => $message);

}

endif;

if ( !function_exists('wp_install_defaults') ) :

/**

 * Creates the initial content for a newly-installed site.

 *

 * Adds the default "Uncategorized" category, the first post (with comment),

 * first page, and default widgets for default theme for the current version.

 *

 * @since 2.1.0

 *

 * @param int $user_id User ID.

 */

function wp_install_defaults( $user_id ) {

	global $wpdb, $wp_rewrite, $table_prefix;

	// Default category

	$cat_name = __('Uncategorized');

	/* translators: Default category slug */

	$cat_slug = sanitize_title(_x('Uncategorized', 'Default category slug'));

	if ( global_terms_enabled() ) {

		$cat_id = $wpdb->get_var( $wpdb->prepare( "SELECT cat_ID FROM {$wpdb->sitecategories} WHERE category_nicename = %s", $cat_slug ) );

		if ( $cat_id == null ) {

			$wpdb->insert( $wpdb->sitecategories, array('cat_ID' => 0, 'cat_name' => $cat_name, 'category_nicename' => $cat_slug, 'last_updated' => current_time('mysql', true)) );

			$cat_id = $wpdb->insert_id;

		}

		update_option('default_category', $cat_id);

	} else {

		$cat_id = 1;

	}

	$wpdb->insert( $wpdb->terms, array('term_id' => $cat_id, 'name' => $cat_name, 'slug' => $cat_slug, 'term_group' => 0) );

	$wpdb->insert( $wpdb->term_taxonomy, array('term_id' => $cat_id, 'taxonomy' => 'category', 'description' => '', 'parent' => 0, 'count' => 1));

	$cat_tt_id = $wpdb->insert_id;

	// First post

	$now = current_time( 'mysql' );

	$now_gmt = current_time( 'mysql', 1 );

	$first_post_guid = get_option( 'home' ) . '/?p=1';

	if ( is_multisite() ) {

		$first_post = get_site_option( 'first_post' );

		if ( empty($first_post) )

			$first_post = __( 'Welcome to <a href="SITE_URL">SITE_NAME</a>. This is your first post. Edit or delete it, then start blogging!' );

		$first_post = str_replace( "SITE_URL", esc_url( network_home_url() ), $first_post );

		$first_post = str_replace( "SITE_NAME", get_current_site()->site_name, $first_post );

	} else {

		$first_post = __('Welcome to WordPress. This is your first post. Edit or delete it, then start blogging!');

	}

	$wpdb->insert( $wpdb->posts, array(

								'post_author' => $user_id,

								'post_date' => $now,

								'post_date_gmt' => $now_gmt,

								'post_content' => $first_post,

								'post_excerpt' => '',

								'post_title' => __('Hello world!'),

								/* translators: Default post slug */

								'post_name' => sanitize_title( _x('hello-world', 'Default post slug') ),

								'post_modified' => $now,

								'post_modified_gmt' => $now_gmt,

								'guid' => $first_post_guid,

								'comment_count' => 1,

								'to_ping' => '',

								'pinged' => '',

								'post_content_filtered' => ''

								));

	$wpdb->insert( $wpdb->term_relationships, array('term_taxonomy_id' => $cat_tt_id, 'object_id' => 1) );

	// Default comment

	$first_comment_author = __('Mr WordPress');

	$first_comment_url = 'https://wordpress.org/';

	$first_comment = __('Hi, this is a comment.

To delete a comment, just log in and view the post's comments. There you will have the option to edit or delete them.');

	if ( is_multisite() ) {

		$first_comment_author = get_site_option( 'first_comment_author', $first_comment_author );

		$first_comment_url = get_site_option( 'first_comment_url', network_home_url() );

		$first_comment = get_site_option( 'first_comment', $first_comment );

	}

	$wpdb->insert( $wpdb->comments, array(

								'comment_post_ID' => 1,

								'comment_author' => $first_comment_author,

								'comment_author_email' => '',

								'comment_author_url' => $first_comment_url,

								'comment_date' => $now,

								'comment_date_gmt' => $now_gmt,

								'comment_content' => $first_comment

								));

	// First Page

	$first_page = sprintf( __( "This is an example page. It's different from a blog post because it will stay in one place and will show up in your site navigation (in most themes). Most people start with an About page that introduces them to potential site visitors. It might say something like this:

<blockquote>Hi there! I'm a bike messenger by day, aspiring actor by night, and this is my blog. I live in Los Angeles, have a great dog named Jack, and I like pi&#241;a coladas. (And gettin' caught in the rain.)</blockquote>

...or something like this:

<blockquote>The XYZ Doohickey Company was founded in 1971, and has been providing quality doohickeys to the public ever since. Located in Gotham City, XYZ employs over 2,000 people and does all kinds of awesome things for the Gotham community.</blockquote>

As a new WordPress user, you should go to <a href=\"%s\">your dashboard</a> to delete this page and create new pages for your content. Have fun!" ), admin_url() );

	if ( is_multisite() )

		$first_page = get_site_option( 'first_page', $first_page );

	$first_post_guid = get_option('home') . '/?page_id=2';

	$wpdb->insert( $wpdb->posts, array(

								'post_author' => $user_id,

								'post_date' => $now,

								'post_date_gmt' => $now_gmt,

								'post_content' => $first_page,

								'post_excerpt' => '',

								'post_title' => __( 'Sample Page' ),

								/* translators: Default page slug */

								'post_name' => __( 'sample-page' ),

								'post_modified' => $now,

								'post_modified_gmt' => $now_gmt,

								'guid' => $first_post_guid,

								'post_type' => 'page',

								'to_ping' => '',

								'pinged' => '',

								'post_content_filtered' => ''

								));

	$wpdb->insert( $wpdb->postmeta, array( 'post_id' => 2, 'meta_key' => '_wp_page_template', 'meta_value' => 'default' ) );

	// Set up default widgets for default theme.

	update_option( 'widget_search', array ( 2 => array ( 'title' => '' ), '_multiwidget' => 1 ) );

	update_option( 'widget_recent-posts', array ( 2 => array ( 'title' => '', 'number' => 5 ), '_multiwidget' => 1 ) );

	update_option( 'widget_recent-comments', array ( 2 => array ( 'title' => '', 'number' => 5 ), '_multiwidget' => 1 ) );

	update_option( 'widget_archives', array ( 2 => array ( 'title' => '', 'count' => 0, 'dropdown' => 0 ), '_multiwidget' => 1 ) );

	update_option( 'widget_categories', array ( 2 => array ( 'title' => '', 'count' => 0, 'hierarchical' => 0, 'dropdown' => 0 ), '_multiwidget' => 1 ) );

	update_option( 'widget_meta', array ( 2 => array ( 'title' => '' ), '_multiwidget' => 1 ) );

	update_option( 'sidebars_widgets', array ( 'wp_inactive_widgets' => array (), 'sidebar-1' => array ( 0 => 'search-2', 1 => 'recent-posts-2', 2 => 'recent-comments-2', 3 => 'archives-2', 4 => 'categories-2', 5 => 'meta-2', ), 'array_version' => 3 ) );

	if ( ! is_multisite() )

		update_user_meta( $user_id, 'show_welcome_panel', 1 );

	elseif ( ! is_super_admin( $user_id ) && ! metadata_exists( 'user', $user_id, 'show_welcome_panel' ) )

		update_user_meta( $user_id, 'show_welcome_panel', 2 );

	if ( is_multisite() ) {

		// Flush rules to pick up the new page.

		$wp_rewrite->init();

		$wp_rewrite->flush_rules();

		$user = new WP_User($user_id);

		$wpdb->update( $wpdb->options, array('option_value' => $user->user_email), array('option_name' => 'admin_email') );

		// Remove all perms except for the login user.

		$wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->usermeta WHERE user_id != %d AND meta_key = %s", $user_id, $table_prefix.'user_level') );

		$wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->usermeta WHERE user_id != %d AND meta_key = %s", $user_id, $table_prefix.'capabilities') );

		// Delete any caps that snuck into the previously active blog. (Hardcoded to blog 1 for now.) TODO: Get previous_blog_id.

		if ( !is_super_admin( $user_id ) && $user_id != 1 )

			$wpdb->delete( $wpdb->usermeta, array( 'user_id' => $user_id , 'meta_key' => $wpdb->base_prefix.'1_capabilities' ) );

	}

}

endif;

/**

 * Maybe enable pretty permalinks on install.

 *

 * If after enabling pretty permalinks don't work, fallback to query-string permalinks.

 *

 * @since 4.2.0

 *

 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.

 *

 * @return bool Whether pretty permalinks are enabled. False otherwise.

 */

function wp_install_maybe_enable_pretty_permalinks() {

	global $wp_rewrite;

	// Bail if a permalink structure is already enabled.

	if ( get_option( 'permalink_structure' ) ) {

		return true;

	}

	/*

	 * The Permalink structures to attempt.

	 *

	 * The first is designed for mod_rewrite or nginx rewriting.

	 *

	 * The second is PATHINFO-based permalinks for web server configurations

	 * without a true rewrite module enabled.

	 */

	$permalink_structures = array(

		'/%year%/%monthnum%/%day%/%postname%/',

		'/index.php/%year%/%monthnum%/%day%/%postname%/'

	);

	foreach ( (array) $permalink_structures as $permalink_structure ) {

		$wp_rewrite->set_permalink_structure( $permalink_structure );

		/*

	 	 * Flush rules with the hard option to force refresh of the web-server's

	 	 * rewrite config file (e.g. .htaccess or web.config).

	 	 */

		$wp_rewrite->flush_rules( true );

		// Test against a real WordPress Post, or if none were created, a random 404 page.

		$test_url = get_permalink( 1 );

		if ( ! $test_url ) {

			$test_url = home_url( '/wordpress-check-for-rewrites/' );

		}

		/*

	 	 * Send a request to the site, and check whether

	 	 * the 'x-pingback' header is returned as expected.

	 	 *

	 	 * Uses wp_remote_get() instead of wp_remote_head() because web servers

	 	 * can block head requests.

	 	 */

		$response          = wp_remote_get( $test_url, array( 'timeout' => 5 ) );

		$x_pingback_header = wp_remote_retrieve_header( $response, 'x-pingback' );

		$pretty_permalinks = $x_pingback_header && $x_pingback_header === get_bloginfo( 'pingback_url' );

		if ( $pretty_permalinks ) {

			return true;

		}

	}

	/*

	 * If it makes it this far, pretty permalinks failed.

	 * Fallback to query-string permalinks.

	 */

	$wp_rewrite->set_permalink_structure( '' );

	$wp_rewrite->flush_rules( true );

	return false;

}

if ( !function_exists('wp_new_blog_notification') ) :

/**

 * Notifies the site admin that the setup is complete.

 *

 * Sends an email with wp_mail to the new administrator that the site setup is complete,

 * and provides them with a record of their login credentials.

 *

 * @since 2.1.0

 *

 * @param string $blog_title Blog title.

 * @param string $blog_url   Blog url.

 * @param int    $user_id    User ID.

 * @param string $password   User's Password.

 */

function wp_new_blog_notification($blog_title, $blog_url, $user_id, $password) {

	$user = new WP_User( $user_id );

	$email = $user->user_email;

	$name = $user->user_login;

	$login_url = wp_login_url();

	$message = sprintf( __( "Your new WordPress site has been successfully set up at:

%1\$s

You can log in to the administrator account with the following information:

Username: %2\$s

Password: %3\$s

Log in here: %4\$s

We hope you enjoy your new site. Thanks!

--The WordPress Team

https://wordpress.org/

"), $blog_url, $name, $password, $login_url );

	@wp_mail($email, __('New WordPress Site'), $message);

}

endif;

if ( !function_exists('wp_upgrade') ) :

/**

 * Runs WordPress Upgrade functions.

 *

 * Upgrades the database if needed during a site update.

 *

 * @since 2.1.0

 *

 * @return null If no update is necessary or site isn't completely installed, null.

 */

function wp_upgrade() {

	global $wp_current_db_version, $wp_db_version, $wpdb;

	$wp_current_db_version = __get_option('db_version');

	// We are up-to-date. Nothing to do.

	if ( $wp_db_version == $wp_current_db_version )

		return;

	if ( ! is_blog_installed() )

		return;

	wp_check_mysql_version();

	wp_cache_flush();

	pre_schema_upgrade();

	make_db_current_silent();

	upgrade_all();

	if ( is_multisite() && is_main_site() )