HTML Examples/WP.iso/wordpress2/wp-admin/includes/user.php

PHP Script | 2017-10-02 | 17.2 KB | 541 lines

<?php
/**
 * WordPress user administration API.
 *
 * @package WordPress
 * @subpackage Administration
 */

/**
 * Creates a new user from the "Users" form using $_POST information.
 *
 * @since 2.0.0
 *
 * @return int|WP_Error WP_Error or User ID.
 */
function add_user() {
    return edit_user();
}

/**
 * Edit user settings based on contents of $_POST
 *
 * Used on user-edit.php and profile.php to manage and process user options, passwords etc.
 *
 * @since 2.0.0
 *
 * @param int $user_id Optional. User ID.
 * @return int|WP_Error user id of the updated user
 */
function edit_user( $user_id = 0 ) {
    $wp_roles = wp_roles();
    $user = new stdClass;
    if ( $user_id ) {
        $update = true;
        $user->ID = (int) $user_id;
        $userdata = get_userdata( $user_id );
        $user->user_login = wp_slash( $userdata->user_login );
    } else {
        $update = false;
    }

    if ( !$update && isset( $_POST['user_login'] ) )
        $user->user_login = sanitize_user($_POST['user_login'], true);

    $pass1 = $pass2 = '';
    if ( isset( $_POST['pass1'] ) )
        $pass1 = $_POST['pass1'];
    if ( isset( $_POST['pass2'] ) )
        $pass2 = $_POST['pass2'];

    if ( isset( $_POST['role'] ) && current_user_can( 'edit_users' ) ) {
        $new_role = sanitize_text_field( $_POST['role'] );
        $potential_role = isset($wp_roles->role_objects[$new_role]) ? $wp_roles->role_objects[$new_role] : false;
        // Don't let anyone with 'edit_users' (admins) edit their own role to something without it.
        // Multisite super admins can freely edit their blog roles -- they possess all caps.
        if ( ( is_multisite() && current_user_can( 'manage_sites' ) ) || $user_id != get_current_user_id() || ($potential_role && $potential_role->has_cap( 'edit_users' ) ) )
            $user->role = $new_role;

        // If the new role isn't editable by the logged-in user die with error
        $editable_roles = get_editable_roles();
        if ( ! empty( $new_role ) && empty( $editable_roles[$new_role] ) )
            wp_die( __( 'Sorry, you are not allowed to give users that role.' ), 403 );
    }

    if ( isset( $_POST['email'] ))
        $user->user_email = sanitize_text_field( wp_unslash( $_POST['email'] ) );
    if ( isset( $_POST['url'] ) ) {
        if ( empty ( $_POST['url'] ) || $_POST['url'] == 'http://' ) {
            $user->user_url = '';
        } else {
            $user->user_url = esc_url_raw( $_POST['url'] );
            $protocols = implode( '|', array_map( 'preg_quote', wp_allowed_protocols() ) );
            $user->user_url = preg_match('/^(' . $protocols . '):/is', $user->user_url) ? $user->user_url : 'http://'.$user->user_url;
        }
    }
    if ( isset( $_POST['first_name'] ) )
        $user->first_name = sanitize_text_field( $_POST['first_name'] );
    if ( isset( $_POST['last_name'] ) )
        $user->last_name = sanitize_text_field( $_POST['last_name'] );
    if ( isset( $_POST['nickname'] ) )
        $user->nickname = sanitize_text_field( $_POST['nickname'] );
    if ( isset( $_POST['display_name'] ) )
        $user->display_name = sanitize_text_field( $_POST['display_name'] );

    if ( isset( $_POST['description'] ) )
        $user->description = trim( $_POST['description'] );

    foreach ( wp_get_user_contact_methods( $user ) as $method => $name ) {
        if ( isset( $_POST[$method] ))
            $user->$method = sanitize_text_field( $_POST[$method] );
    }

    if ( $update ) {
        $user->rich_editing = isset( $_POST['rich_editing'] ) && 'false' === $_POST['rich_editing'] ? 'false' : 'true';
        $user->syntax_highlighting = isset( $_POST['syntax_highlighting'] ) && 'false' === $_POST['syntax_highlighting'] ? 'false' : 'true';
        $user->admin_color = isset( $_POST['admin_color'] ) ? sanitize_text_field( $_POST['admin_color'] ) : 'fresh';
        $user->show_admin_bar_front = isset( $_POST['admin_bar_front'] ) ? 'true' : 'false';
        $user->locale = '';

        if ( isset( $_POST['locale'] ) ) {
            $locale = sanitize_text_field( $_POST['locale'] );
            if ( 'site-default' === $locale ) {
                $locale = '';
            } elseif ( '' === $locale ) {
                $locale = 'en_US';
            } elseif ( ! in_array( $locale, get_available_languages(), true ) ) {
                $locale = '';
            }

            $user->locale = $locale;
        }
    }

    $user->comment_shortcuts = isset( $_POST['comment_shortcuts'] ) && 'true' == $_POST['comment_shortcuts'] ? 'true' : '';

    $user->use_ssl = 0;
    if ( !empty($_POST['use_ssl']) )
        $user->use_ssl = 1;

    $errors = new WP_Error();

    /* checking that username has been typed */
    if ( $user->user_login == '' )
        $errors->add( 'user_login', __( '<strong>ERROR</strong>: Please enter a username.' ) );

    /* checking that nickname has been typed */
    if ( $update && empty( $user->nickname ) ) {
        $errors->add( 'nickname', __( '<strong>ERROR</strong>: Please enter a nickname.' ) );
    }

    /**
     * Fires before the password and confirm password fields are checked for congruity.
     *
     * @since 1.5.1
     *
     * @param string $user_login The username.
     * @param string $pass1     The password (passed by reference).
     * @param string $pass2     The confirmed password (passed by reference).
     */
    do_action_ref_array( 'check_passwords', array( $user->user_login, &$pass1, &$pass2 ) );

    // Check for blank password when adding a user.
    if ( ! $update && empty( $pass1 ) ) {
        $errors->add( 'pass', __( '<strong>ERROR</strong>: Please enter a password.' ), array( 'form-field' => 'pass1' ) );
    }

    // Check for "\" in password.
    if ( false !== strpos( wp_unslash( $pass1 ), "\\" ) ) {
        $errors->add( 'pass', __( '<strong>ERROR</strong>: Passwords may not contain the character "\\".' ), array( 'form-field' => 'pass1' ) );
    }

    // Checking the password has been typed twice the same.
    if ( ( $update || ! empty( $pass1 ) ) && $pass1 != $pass2 ) {
        $errors->add( 'pass', __( '<strong>ERROR</strong>: Please enter the same password in both password fields.' ), array( 'form-field' => 'pass1' ) );
    }

    if ( !empty( $pass1 ) )
        $user->user_pass = $pass1;

    if ( !$update && isset( $_POST['user_login'] ) && !validate_username( $_POST['user_login'] ) )
        $errors->add( 'user_login', __( '<strong>ERROR</strong>: This username is invalid because it uses illegal characters. Please enter a valid username.' ));

    if ( !$update && username_exists( $user->user_login ) )
        $errors->add( 'user_login', __( '<strong>ERROR</strong>: This username is already registered. Please choose another one.' ));

    /** This filter is documented in wp-includes/user.php */
    $illegal_logins = (array) apply_filters( 'illegal_user_logins', array() );

    if ( in_array( strtolower( $user->user_login ), array_map( 'strtolower', $illegal_logins ) ) ) {
        $errors->add( 'invalid_username', __( '<strong>ERROR</strong>: Sorry, that username is not allowed.' ) );
    }

    /* checking email address */
    if ( empty( $user->user_email ) ) {
        $errors->add( 'empty_email', __( '<strong>ERROR</strong>: Please enter an email address.' ), array( 'form-field' => 'email' ) );
    } elseif ( !is_email( $user->user_email ) ) {
        $errors->add( 'invalid_email', __( '<strong>ERROR</strong>: The email address isn’t correct.' ), array( 'form-field' => 'email' ) );
    } elseif ( ( $owner_id = email_exists($user->user_email) ) && ( !$update || ( $owner_id != $user->ID ) ) ) {
        $errors->add( 'email_exists', __('<strong>ERROR</strong>: This email is already registered, please choose another one.'), array( 'form-field' => 'email' ) );
    }

    /**
     * Fires before user profile update errors are returned.
     *
     * @since 2.8.0
     *
     * @param WP_Error $errors WP_Error object (passed by reference).
     * @param bool     $update  Whether this is a user update.
     * @param stdClass $user   User object (passed by reference).
     */
    do_action_ref_array( 'user_profile_update_errors', array( &$errors, $update, &$user ) );

    if ( $errors->get_error_codes() )
        return $errors;

    if ( $update ) {
        $user_id = wp_update_user( $user );
    } else {
        $user_id = wp_insert_user( $user );
        $notify  = isset( $_POST['send_user_notification'] ) ? 'both' : 'admin';

        /**
          * Fires after a new user has been created.
          *
          * @since 4.4.0
          *
          * @param int    $user_id ID of the newly created user.
          * @param string $notify  Type of notification that should happen. See wp_send_new_user_notifications()
          *                        for more information on possible values.
          */
        do_action( 'edit_user_created_user', $user_id, $notify );
    }
    return $user_id;
}

/**
 * Fetch a filtered list of user roles that the current user is
 * allowed to edit.
 *
 * Simple function who's main purpose is to allow filtering of the
 * list of roles in the $wp_roles object so that plugins can remove
 * inappropriate ones depending on the situation or user making edits.
 * Specifically because without filtering anyone with the edit_users
 * capability can edit others to be administrators, even if they are
 * only editors or authors. This filter allows admins to delegate
 * user management.
 *
 * @since 2.8.0
 *
 * @return array
 */
function get_editable_roles() {
    $all_roles = wp_roles()->roles;

    /**
     * Filters the list of editable roles.
     *
     * @since 2.8.0
     *
     * @param array $all_roles List of roles.
     */
    $editable_roles = apply_filters( 'editable_roles', $all_roles );

    return $editable_roles;
}

/**
 * Retrieve user data and filter it.
 *
 * @since 2.0.5
 *
 * @param int $user_id User ID.
 * @return WP_User|bool WP_User object on success, false on failure.
 */
function get_user_to_edit( $user_id ) {
    $user = get_userdata( $user_id );

    if ( $user )
        $user->filter = 'edit';

    return $user;
}

/**
 * Retrieve the user's drafts.
 *
 * @since 2.0.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int $user_id User ID.
 * @return array
 */
function get_users_drafts( $user_id ) {
    global $wpdb;
    $query = $wpdb->prepare("SELECT ID, post_title FROM $wpdb->posts WHERE post_type = 'post' AND post_status = 'draft' AND post_author = %d ORDER BY post_modified DESC", $user_id);

    /**
     * Filters the user's drafts query string.
     *
     * @since 2.0.0
     *
     * @param string $query The user's drafts query string.
     */
    $query = apply_filters( 'get_users_drafts', $query );
    return $wpdb->get_results( $query );
}

/**
 * Remove user and optionally reassign posts and links to another user.
 *
 * If the $reassign parameter is not assigned to a User ID, then all posts will
 * be deleted of that user. The action {@see 'delete_user'} that is passed the User ID
 * being deleted will be run after the posts are either reassigned or deleted.
 * The user meta will also be deleted that are for that User ID.
 *
 * @since 2.0.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int $id User ID.
 * @param int $reassign Optional. Reassign posts and links to new User ID.
 * @return bool True when finished.
 */
function wp_delete_user( $id, $reassign = null ) {
    global $wpdb;

    if ( ! is_numeric( $id ) ) {
        return false;
    }

    $id = (int) $id;
    $user = new WP_User( $id );

    if ( !$user->exists() )
        return false;

    // Normalize $reassign to null or a user ID. 'novalue' was an older default.
    if ( 'novalue' === $reassign ) {
        $reassign = null;
    } elseif ( null !== $reassign ) {
        $reassign = (int) $reassign;
    }

    /**
     * Fires immediately before a user is deleted from the database.
     *
     * @since 2.0.0
     *
     * @param int      $id       ID of the user to delete.
     * @param int|null $reassign ID of the user to reassign posts and links to.
     *                           Default null, for no reassignment.
     */
    do_action( 'delete_user', $id, $reassign );

    if ( null === $reassign ) {
        $post_types_to_delete = array();
        foreach ( get_post_types( array(), 'objects' ) as $post_type ) {
            if ( $post_type->delete_with_user ) {
                $post_types_to_delete[] = $post_type->name;
            } elseif ( null === $post_type->delete_with_user && post_type_supports( $post_type->name, 'author' ) ) {
                $post_types_to_delete[] = $post_type->name;
            }
        }

        /**
         * Filters the list of post types to delete with a user.
         *
         * @since 3.4.0
         *
         * @param array $post_types_to_delete Post types to delete.
         * @param int   $id                   User ID.
         */
        $post_types_to_delete = apply_filters( 'post_types_to_delete_with_user', $post_types_to_delete, $id );
        $post_types_to_delete = implode( "', '", $post_types_to_delete );
        $post_ids = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_author = %d AND post_type IN ('$post_types_to_delete')", $id ) );
        if ( $post_ids ) {
            foreach ( $post_ids as $post_id )
                wp_delete_post( $post_id );
        }

        // Clean links
        $link_ids = $wpdb->get_col( $wpdb->prepare("SELECT link_id FROM $wpdb->links WHERE link_owner = %d", $id) );

        if ( $link_ids ) {
            foreach ( $link_ids as $link_id )
                wp_delete_link($link_id);
        }
    } else {
        $post_ids = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_author = %d", $id ) );
        $wpdb->update( $wpdb->posts, array('post_author' => $reassign), array('post_author' => $id) );
        if ( ! empty( $post_ids ) ) {
            foreach ( $post_ids as $post_id )
                clean_post_cache( $post_id );
        }
        $link_ids = $wpdb->get_col( $wpdb->prepare("SELECT link_id FROM $wpdb->links WHERE link_owner = %d", $id) );
        $wpdb->update( $wpdb->links, array('link_owner' => $reassign), array('link_owner' => $id) );
        if ( ! empty( $link_ids ) ) {
            foreach ( $link_ids as $link_id )
                clean_bookmark_cache( $link_id );
        }
    }

    // FINALLY, delete user
    if ( is_multisite() ) {
        remove_user_from_blog( $id, get_current_blog_id() );
    } else {
        $meta = $wpdb->get_col( $wpdb->prepare( "SELECT umeta_id FROM $wpdb->usermeta WHERE user_id = %d", $id ) );
        foreach ( $meta as $mid )
            delete_metadata_by_mid( 'user', $mid );

        $wpdb->delete( $wpdb->users, array( 'ID' => $id ) );
    }

    clean_user_cache( $user );

    /**
     * Fires immediately after a user is deleted from the database.
     *
     * @since 2.9.0
     *
     * @param int      $id       ID of the deleted user.
     * @param int|null $reassign ID of the user to reassign posts and links to.
     *                           Default null, for no reassignment.
     */
    do_action( 'deleted_user', $id, $reassign );

    return true;
}

/**
 * Remove all capabilities from user.
 *
 * @since 2.1.0
 *
 * @param int $id User ID.
 */
function wp_revoke_user($id) {
    $id = (int) $id;

    $user = new WP_User($id);
    $user->remove_all_caps();
}

/**
 * @since 2.8.0
 *
 * @global int $user_ID
 *
 * @param false $errors Deprecated.
 */
function default_password_nag_handler($errors = false) {
    global $user_ID;
    // Short-circuit it.
    if ( ! get_user_option('default_password_nag') )
        return;

    // get_user_setting = JS saved UI setting. else no-js-fallback code.
    if ( 'hide' == get_user_setting('default_password_nag') || isset($_GET['default_password_nag']) && '0' == $_GET['default_password_nag'] ) {
        delete_user_setting('default_password_nag');
        update_user_option($user_ID, 'default_password_nag', false, true);
    }
}

/**
 * @since 2.8.0
 *
 * @param int    $user_ID
 * @param object $old_data
 */
function default_password_nag_edit_user($user_ID, $old_data) {
    // Short-circuit it.
    if ( ! get_user_option('default_password_nag', $user_ID) )
        return;

    $new_data = get_userdata($user_ID);

    // Remove the nag if the password has been changed.
    if ( $new_data->user_pass != $old_data->user_pass ) {
        delete_user_setting('default_password_nag');
        update_user_option($user_ID, 'default_password_nag', false, true);
    }
}

/**
 * @since 2.8.0
 *
 * @global string $pagenow
 */
function default_password_nag() {
    global $pagenow;
    // Short-circuit it.
    if ( 'profile.php' == $pagenow || ! get_user_option('default_password_nag') )
        return;

    echo '<div class="error default-password-nag">';
    echo '<p>';
    echo '<strong>' . __('Notice:') . '</strong> ';
    _e('You’re using the auto-generated password for your account. Would you like to change it?');
    echo '</p><p>';
    printf( '<a href="%s">' . __('Yes, take me to my profile page') . '</a> | ', get_edit_profile_url() . '#password' );
    printf( '<a href="%s" id="default-password-nag-no">' . __('No thanks, do not remind me again') . '</a>', '?default_password_nag=0' );
    echo '</p></div>';
}

/**
 * @since 3.5.0
 * @access private
 */
function delete_users_add_js() { ?>
<script>
jQuery(document).ready( function($) {
    var submit = $('#submit').prop('disabled', true);
    $('input[name="delete_option"]').one('change', function() {
        submit.prop('disabled', false);
    });
    $('#reassign_user').focus( function() {
        $('#delete_option1').prop('checked', true).trigger('change');
    });
});
</script>
<?php
}

/**
 * Optional SSL preference that can be turned on by hooking to the 'personal_options' action.
 *
 * See the {@see 'personal_options'} action.
 *
 * @since 2.7.0
 *
 * @param object $user User data object
 */
function use_ssl_preference($user) {
?>
    <tr class="user-use-ssl-wrap">
        <th scope="row"><?php _e('Use https')?></th>
        <td><label for="use_ssl"><input name="use_ssl" type="checkbox" id="use_ssl" value="1" <?php checked('1', $user->use_ssl); ?> /> <?php _e('Always use https when visiting the admin'); ?></label></td>
    </tr>
<?php
}

/**
 *
 * @param string $text
 * @return string
 */
function admin_created_user_email( $text ) {
    $roles = get_editable_roles();
    $role = $roles[ $_REQUEST['role'] ];
    /* translators: 1: Site name, 2: site URL, 3: role */
    return sprintf( __( 'Hi,
You\'ve been invited to join \'%1$s\' at
%2$s with the role of %3$s.
If you do not want to join this site please ignore
this email. This invitation will expire in a few days.

Please click the following link to activate your user account:
%%s' ), wp_specialchars_decode( get_bloginfo( 'name' ), ENT_QUOTES ), home_url(), wp_specialchars_decode( translate_user_role( $role['name'] ) ) );
}