WebKitSite/blog/wp-includes/registration.php - WebKit - Git at Google

 <?php
 /**
  * User Registration API
  *
  * @package WordPress
  */

 /**
  * username_exists() - Checks whether the given username exists.
  *
  * @since 2.0.0
  *
  * @param string $username Username.
  * @return null|int The user's ID on success, and null on failure.
  */
 function username_exists( $username ) {
 	if ( $user = get_userdatabylogin( $username ) ) {
 		return $user->ID;
 	} else {
 		return null;
 	}
 }

 /**
  * email_exists() - Checks whether the given email exists.
  *
  * @since 2.1.0
  * @uses $wpdb
  *
  * @param string $email Email.
  * @return bool|int The user's ID on success, and false on failure.
  */
 function email_exists( $email ) {
 	if ( $user = get_user_by_email($email) )
 		return $user->ID;

 	return false;
 }

 /**
  * validate_username() - Checks whether an username is valid.
  *
  * @since 2.0.1
  * @uses apply_filters() Calls 'validate_username' hook on $valid check and $username as parameters
  *
  * @param string $username Username.
  * @return bool Whether username given is valid
  */
 function validate_username( $username ) {
 	$sanitized = sanitize_user( $username, true );
 	$valid = ( $sanitized == $username );
 	return apply_filters( 'validate_username', $valid, $username );
 }

 /**
  * wp_insert_user() - Insert an user into the database.
  *
  * Can update a current user or insert a new user based on whether
  * the user's ID is present.
  *
  * Can be used to update the user's info (see below), set the user's
  * role, and set the user's preference on whether they want the rich
  * editor on.
  *
  * Most of the $userdata array fields have filters associated with
  * the values. The exceptions are 'rich_editing', 'role', 'jabber',
  * 'aim', 'yim', 'user_registered', and 'ID'. The filters have the
  * prefix 'pre_user_' followed by the field name. An example using
  * 'description' would have the filter called, 'pre_user_description'
  * that can be hooked into.
  *
  * The $userdata array can contain the following fields:
  * 'ID' - An integer that will be used for updating an existing user.
  * 'user_pass' - A string that contains the plain text password for the user.
  * 'user_login' - A string that contains the user's username for logging in.
  * 'user_nicename' - A string that contains a nicer looking name for the user.
  *		The default is the user's username.
  * 'user_url' - A string containing the user's URL for the user's web site.
  * 'user_email' - A string containing the user's email address.
  * 'display_name' - A string that will be shown on the site. Defaults to user's username.
  *		It is likely that you will want to change this, for both appearance and security
  *		through obscurity (that is if you don't use and delete the default 'admin' user).
  * 'nickname' - The user's nickname, defaults to the user's username.
  * 'first_name' - The user's first name.
  * 'last_name' - The user's last name.
  * 'description' - A string containing content about the user.
  * 'rich_editing' - A string for whether to enable the rich editor or not. False if not
  *		empty.
  * 'user_registered' - The date the user registered. Format is 'Y-m-d H:i:s'.
  * 'role' - A string used to set the user's role.
  * 'jabber' - User's Jabber account.
  * 'aim' - User's AOL IM account.
  * 'yim' - User's Yahoo IM account.
  *
  * @since 2.0.0
  * @uses $wpdb WordPress database layer.
  * @uses apply_filters() Calls filters for most of the $userdata fields with the prefix 'pre_user'. See note above.
  * @uses do_action() Calls 'profile_update' hook when updating giving the user's ID
  * @uses do_action() Calls 'user_register' hook when creating a new user giving the user's ID
  *
  * @param array $userdata An array of user data.
  * @return int The newly created user's ID.
  */
 function wp_insert_user($userdata) {
 	global $wpdb;

 	extract($userdata, EXTR_SKIP);

 	// Are we updating or creating?
 	if ( !empty($ID) ) {
 		$ID = (int) $ID;
 		$update = true;
 	} else {
 		$update = false;
 		// Hash the password
 		$user_pass = wp_hash_password($user_pass);
 	}

 	$user_login = sanitize_user($user_login, true);
 	$user_login = apply_filters('pre_user_login', $user_login);

 	if ( empty($user_nicename) )
 		$user_nicename = sanitize_title( $user_login );
 	$user_nicename = apply_filters('pre_user_nicename', $user_nicename);

 	if ( empty($user_url) )
 		$user_url = '';
 	$user_url = apply_filters('pre_user_url', $user_url);

 	if ( empty($user_email) )
 		$user_email = '';
 	$user_email = apply_filters('pre_user_email', $user_email);

 	if ( empty($display_name) )
 		$display_name = $user_login;
 	$display_name = apply_filters('pre_user_display_name', $display_name);

 	if ( empty($nickname) )
 		$nickname = $user_login;
 	$nickname = apply_filters('pre_user_nickname', $nickname);

 	if ( empty($first_name) )
 		$first_name = '';
 	$first_name = apply_filters('pre_user_first_name', $first_name);

 	if ( empty($last_name) )
 		$last_name = '';
 	$last_name = apply_filters('pre_user_last_name', $last_name);

 	if ( empty($description) )
 		$description = '';
 	$description = apply_filters('pre_user_description', $description);

 	if ( empty($rich_editing) )
 		$rich_editing = 'true';

 	if ( empty($admin_color) )
 		$admin_color = 'fresh';
 	$admin_color = preg_replace('|[^a-z0-9 _.\-@]|i', '', $admin_color);

 	if ( empty($user_registered) )
 		$user_registered = gmdate('Y-m-d H:i:s');

 	$data = compact( 'user_pass', 'user_email', 'user_url', 'user_nicename', 'display_name', 'user_registered' );
 	$data = stripslashes_deep( $data );

 	if ( $update ) {
 		$wpdb->update( $wpdb->users, $data, compact( 'ID' ) );
 		$user_id = (int) $ID;
 	} else {
 		$wpdb->insert( $wpdb->users, $data + compact( 'user_login' ) );
 		$user_id = (int) $wpdb->insert_id;
 	}

 	update_usermeta( $user_id, 'first_name', $first_name);
 	update_usermeta( $user_id, 'last_name', $last_name);
 	update_usermeta( $user_id, 'nickname', $nickname );
 	update_usermeta( $user_id, 'description', $description );
 	update_usermeta( $user_id, 'jabber', $jabber );
 	update_usermeta( $user_id, 'aim', $aim );
 	update_usermeta( $user_id, 'yim', $yim );
 	update_usermeta( $user_id, 'rich_editing', $rich_editing);
 	update_usermeta( $user_id, 'admin_color', $admin_color);

 	if ( $update && isset($role) ) {
 		$user = new WP_User($user_id);
 		$user->set_role($role);
 	}

 	if ( !$update ) {
 		$user = new WP_User($user_id);
 		$user->set_role(get_option('default_role'));
 	}

 	wp_cache_delete($user_id, 'users');
 	wp_cache_delete($user_login, 'userlogins');

 	if ( $update )
 		do_action('profile_update', $user_id);
 	else
 		do_action('user_register', $user_id);

 	return $user_id;
 }

 /**
  * wp_update_user() - Update an user in the database
  *
  * It is possible to update a user's password by specifying the
  * 'user_pass' value in the $userdata parameter array.
  *
  * If $userdata does not contain an 'ID' key, then a new user
  * will be created and the new user's ID will be returned.
  *
  * If current user's password is being updated, then the cookies
  * will be cleared.
  *
  * @since 2.0.0
  * @see wp_insert_user() For what fields can be set in $userdata
  * @uses wp_insert_user() Used to update existing user or add new one if user doesn't exist already
  *
  * @param array $userdata An array of user data.
  * @return int The updated user's ID.
  */
 function wp_update_user($userdata) {
 	$ID = (int) $userdata['ID'];

 	// First, get all of the original fields
 	$user = get_userdata($ID);

 	// Escape data pulled from DB.
 	$user = add_magic_quotes(get_object_vars($user));

 	// If password is changing, hash it now.
 	if ( ! empty($userdata['user_pass']) ) {
 		$plaintext_pass = $userdata['user_pass'];
 		$userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
 	}

 	// Merge old and new fields with new fields overwriting old ones.
 	$userdata = array_merge($user, $userdata);
 	$user_id = wp_insert_user($userdata);

 	// Update the cookies if the password changed.
 	$current_user = wp_get_current_user();
 	if ( $current_user->id == $ID ) {
 		if ( isset($plaintext_pass) ) {
 			wp_clear_auth_cookie();
 			wp_set_auth_cookie($ID);
 		}
 	}

 	return $user_id;
 }

 /**
  * wp_create_user() - A simpler way of inserting an user into the database.
  *
  * Creates a new user with just the username, password, and email. For a more
  * detail creation of a user, use wp_insert_user() to specify more infomation.
  *
  * @since 2.0.0
  * @see wp_insert_user() More complete way to create a new user
  * @uses $wpdb Escapes $username and $email parameters
  *
  * @param string $username The user's username.
  * @param string $password The user's password.
  * @param string $email The user's email (optional).
  * @return int The new user's ID.
  */
 function wp_create_user($username, $password, $email = '') {
 	global $wpdb;

 	$user_login = $wpdb->escape($username);
 	$user_email = $wpdb->escape($email);
 	$user_pass = $password;

 	$userdata = compact('user_login', 'user_email', 'user_pass');
 	return wp_insert_user($userdata);
 }

 ?>
	<?php
	/**
	* User Registration API
	*
	* @package WordPress
	*/

	/**
	* username_exists() - Checks whether the given username exists.
	*
	* @since 2.0.0
	*
	* @param string $username Username.
	* @return null\|int The user's ID on success, and null on failure.
	*/
	function username_exists( $username ) {
	if ( $user = get_userdatabylogin( $username ) ) {
	return $user->ID;
	} else {
	return null;
	}
	}

	/**
	* email_exists() - Checks whether the given email exists.
	*
	* @since 2.1.0
	* @uses $wpdb
	*
	* @param string $email Email.
	* @return bool\|int The user's ID on success, and false on failure.
	*/
	function email_exists( $email ) {
	if ( $user = get_user_by_email($email) )
	return $user->ID;

	return false;
	}

	/**
	* validate_username() - Checks whether an username is valid.
	*
	* @since 2.0.1
	* @uses apply_filters() Calls 'validate_username' hook on $valid check and $username as parameters
	*
	* @param string $username Username.
	* @return bool Whether username given is valid
	*/
	function validate_username( $username ) {
	$sanitized = sanitize_user( $username, true );
	$valid = ( $sanitized == $username );
	return apply_filters( 'validate_username', $valid, $username );
	}

	/**
	* wp_insert_user() - Insert an user into the database.
	*
	* Can update a current user or insert a new user based on whether
	* the user's ID is present.
	*
	* Can be used to update the user's info (see below), set the user's
	* role, and set the user's preference on whether they want the rich
	* editor on.
	*
	* Most of the $userdata array fields have filters associated with
	* the values. The exceptions are 'rich_editing', 'role', 'jabber',
	* 'aim', 'yim', 'user_registered', and 'ID'. The filters have the
	* prefix 'pre_user_' followed by the field name. An example using
	* 'description' would have the filter called, 'pre_user_description'
	* that can be hooked into.
	*
	* The $userdata array can contain the following fields:
	* 'ID' - An integer that will be used for updating an existing user.
	* 'user_pass' - A string that contains the plain text password for the user.
	* 'user_login' - A string that contains the user's username for logging in.
	* 'user_nicename' - A string that contains a nicer looking name for the user.
	* The default is the user's username.
	* 'user_url' - A string containing the user's URL for the user's web site.
	* 'user_email' - A string containing the user's email address.
	* 'display_name' - A string that will be shown on the site. Defaults to user's username.
	* It is likely that you will want to change this, for both appearance and security
	* through obscurity (that is if you don't use and delete the default 'admin' user).
	* 'nickname' - The user's nickname, defaults to the user's username.
	* 'first_name' - The user's first name.
	* 'last_name' - The user's last name.
	* 'description' - A string containing content about the user.
	* 'rich_editing' - A string for whether to enable the rich editor or not. False if not
	* empty.
	* 'user_registered' - The date the user registered. Format is 'Y-m-d H:i:s'.
	* 'role' - A string used to set the user's role.
	* 'jabber' - User's Jabber account.
	* 'aim' - User's AOL IM account.
	* 'yim' - User's Yahoo IM account.
	*
	* @since 2.0.0
	* @uses $wpdb WordPress database layer.
	* @uses apply_filters() Calls filters for most of the $userdata fields with the prefix 'pre_user'. See note above.
	* @uses do_action() Calls 'profile_update' hook when updating giving the user's ID
	* @uses do_action() Calls 'user_register' hook when creating a new user giving the user's ID
	*
	* @param array $userdata An array of user data.
	* @return int The newly created user's ID.
	*/
	function wp_insert_user($userdata) {
	global $wpdb;

	extract($userdata, EXTR_SKIP);

	// Are we updating or creating?
	if ( !empty($ID) ) {
	$ID = (int) $ID;
	$update = true;
	} else {
	$update = false;
	// Hash the password
	$user_pass = wp_hash_password($user_pass);
	}

	$user_login = sanitize_user($user_login, true);
	$user_login = apply_filters('pre_user_login', $user_login);

	if ( empty($user_nicename) )
	$user_nicename = sanitize_title( $user_login );
	$user_nicename = apply_filters('pre_user_nicename', $user_nicename);

	if ( empty($user_url) )
	$user_url = '';
	$user_url = apply_filters('pre_user_url', $user_url);

	if ( empty($user_email) )
	$user_email = '';
	$user_email = apply_filters('pre_user_email', $user_email);

	if ( empty($display_name) )
	$display_name = $user_login;
	$display_name = apply_filters('pre_user_display_name', $display_name);

	if ( empty($nickname) )
	$nickname = $user_login;
	$nickname = apply_filters('pre_user_nickname', $nickname);

	if ( empty($first_name) )
	$first_name = '';
	$first_name = apply_filters('pre_user_first_name', $first_name);

	if ( empty($last_name) )
	$last_name = '';
	$last_name = apply_filters('pre_user_last_name', $last_name);

	if ( empty($description) )
	$description = '';
	$description = apply_filters('pre_user_description', $description);

	if ( empty($rich_editing) )
	$rich_editing = 'true';

	if ( empty($admin_color) )
	$admin_color = 'fresh';
	$admin_color = preg_replace('\|[^a-z0-9 _.\-@]\|i', '', $admin_color);

	if ( empty($user_registered) )
	$user_registered = gmdate('Y-m-d H:i:s');

	$data = compact( 'user_pass', 'user_email', 'user_url', 'user_nicename', 'display_name', 'user_registered' );
	$data = stripslashes_deep( $data );

	if ( $update ) {
	$wpdb->update( $wpdb->users, $data, compact( 'ID' ) );
	$user_id = (int) $ID;
	} else {
	$wpdb->insert( $wpdb->users, $data + compact( 'user_login' ) );
	$user_id = (int) $wpdb->insert_id;
	}

	update_usermeta( $user_id, 'first_name', $first_name);
	update_usermeta( $user_id, 'last_name', $last_name);
	update_usermeta( $user_id, 'nickname', $nickname );
	update_usermeta( $user_id, 'description', $description );
	update_usermeta( $user_id, 'jabber', $jabber );
	update_usermeta( $user_id, 'aim', $aim );
	update_usermeta( $user_id, 'yim', $yim );
	update_usermeta( $user_id, 'rich_editing', $rich_editing);
	update_usermeta( $user_id, 'admin_color', $admin_color);

	if ( $update && isset($role) ) {
	$user = new WP_User($user_id);
	$user->set_role($role);
	}

	if ( !$update ) {
	$user = new WP_User($user_id);
	$user->set_role(get_option('default_role'));
	}

	wp_cache_delete($user_id, 'users');
	wp_cache_delete($user_login, 'userlogins');

	if ( $update )
	do_action('profile_update', $user_id);
	else
	do_action('user_register', $user_id);

	return $user_id;
	}

	/**
	* wp_update_user() - Update an user in the database
	*
	* It is possible to update a user's password by specifying the
	* 'user_pass' value in the $userdata parameter array.
	*
	* If $userdata does not contain an 'ID' key, then a new user
	* will be created and the new user's ID will be returned.
	*
	* If current user's password is being updated, then the cookies
	* will be cleared.
	*
	* @since 2.0.0
	* @see wp_insert_user() For what fields can be set in $userdata
	* @uses wp_insert_user() Used to update existing user or add new one if user doesn't exist already
	*
	* @param array $userdata An array of user data.
	* @return int The updated user's ID.
	*/
	function wp_update_user($userdata) {
	$ID = (int) $userdata['ID'];

	// First, get all of the original fields
	$user = get_userdata($ID);

	// Escape data pulled from DB.
	$user = add_magic_quotes(get_object_vars($user));

	// If password is changing, hash it now.
	if ( ! empty($userdata['user_pass']) ) {
	$plaintext_pass = $userdata['user_pass'];
	$userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
	}

	// Merge old and new fields with new fields overwriting old ones.
	$userdata = array_merge($user, $userdata);
	$user_id = wp_insert_user($userdata);

	// Update the cookies if the password changed.
	$current_user = wp_get_current_user();
	if ( $current_user->id == $ID ) {
	if ( isset($plaintext_pass) ) {
	wp_clear_auth_cookie();
	wp_set_auth_cookie($ID);
	}
	}

	return $user_id;
	}

	/**
	* wp_create_user() - A simpler way of inserting an user into the database.
	*
	* Creates a new user with just the username, password, and email. For a more
	* detail creation of a user, use wp_insert_user() to specify more infomation.
	*
	* @since 2.0.0
	* @see wp_insert_user() More complete way to create a new user
	* @uses $wpdb Escapes $username and $email parameters
	*
	* @param string $username The user's username.
	* @param string $password The user's password.
	* @param string $email The user's email (optional).
	* @return int The new user's ID.
	*/
	function wp_create_user($username, $password, $email = '') {
	global $wpdb;

	$user_login = $wpdb->escape($username);
	$user_email = $wpdb->escape($email);
	$user_pass = $password;

	$userdata = compact('user_login', 'user_email', 'user_pass');
	return wp_insert_user($userdata);
	}

	?>