<?php

/**

 * bbPress User Capabilites

 *

 * Used to map user capabilities to WordPress's existing capabilities.

 *

 * @package bbPress

 * @subpackage Capabilities

 */

/**

 * Maps primary capabilities

 *

 * @since bbPress (r4242)

 *

 * @param array $caps Capabilities for meta capability

 * @param string $cap Capability name

 * @param int $user_id User id

 * @param mixed $args Arguments

 * @uses apply_filters() Filter mapped results

 * @return array Actual capabilities for meta capability

 */

function bbp_map_primary_meta_caps( $caps = array(), $cap = '', $user_id = 0, $args = array() ) {

	// What capability is being checked?

	switch ( $cap ) {

		case 'spectate'    :

		case 'participate' :

		case 'moderate'    :

			// Do not allow inactive users

			if ( bbp_is_user_inactive( $user_id ) ) {

				$caps = array( 'do_not_allow' );

			// Moderators are always participants

			} else {

				$caps = array( $cap );

			}

			break;

	}

	return apply_filters( 'bbp_map_primary_meta_caps', $caps, $cap, $user_id, $args );

}

/**

 * Return a user's main role

 *

 * @since bbPress (r3860)

 *

 * @param int $user_id

 * @uses bbp_get_user_id() To get the user id

 * @uses get_userdata() To get the user data

 * @uses apply_filters() Calls 'bbp_set_user_role' with the role and user id

 * @return string

 */

function bbp_set_user_role( $user_id = 0, $new_role = '' ) {

	// Validate user id

	$user_id = bbp_get_user_id( $user_id, false, false );

	$user    = get_userdata( $user_id );

	// User exists

	if ( !empty( $user ) ) {

		// Get users forum role

		$role = bbp_get_user_role( $user_id );

		// User already has this role so no new role is set

		if ( $new_role == $role ) {

			$new_role = false;

		// Users role is different than the new role

		} else {

			// Remove the old role

			if ( ! empty( $role ) ) {

				$user->remove_role( $role );

			}

			// Add the new role

			if ( !empty( $new_role ) ) {

				$user->add_role( $new_role );

			}

		}

	// User does don exist so return false

	} else {

		$new_role = false;

	}

	return apply_filters( 'bbp_set_user_role', $new_role, $user_id, $user );

}

/**

 * Return a user's forums role

 *

 * @since bbPress (r3860)

 *

 * @param int $user_id

 * @uses bbp_get_user_id() To get the user id

 * @uses get_userdata() To get the user data

 * @uses apply_filters() Calls 'bbp_get_user_role' with the role and user id

 * @return string

 */

function bbp_get_user_role( $user_id = 0 ) {

	// Validate user id

	$user_id = bbp_get_user_id( $user_id, false, false );

	$user    = get_userdata( $user_id );

	$role    = false;

	// User has roles so lets

	if ( ! empty( $user->roles ) ) {

		$roles = array_intersect( array_values( $user->roles ), array_keys( bbp_get_dynamic_roles() ) );

		// If there's a role in the array, use the first one

		if ( !empty( $roles ) ) {

			$role = array_shift( array_values( $roles ) );

		}

	}

	return apply_filters( 'bbp_get_user_role', $role, $user_id, $user );

}

/**

 * Return a user's blog role

 *

 * @since bbPress (r4446)

 *

 * @param int $user_id

 * @uses bbp_get_user_id() To get the user id

 * @uses get_userdata() To get the user data

 * @uses apply_filters() Calls 'bbp_get_user_blog_role' with the role and user id

 * @return string

 */

function bbp_get_user_blog_role( $user_id = 0 ) {

	global $wp_roles;

	// This really shold not be necessary anymore, and will likely be removed

	// at a later date. If roles aren't loaded yet, something else is wrong.

	if ( ! isset( $wp_roles ) )

		$wp_roles = new WP_Roles();

	// Validate user id

	$user_id   = bbp_get_user_id( $user_id, false, false );

	$user      = get_userdata( $user_id );

	$role      = false;

	$all_roles = apply_filters( 'editable_roles', $wp_roles->roles );

	// User has roles so lets

	if ( ! empty( $user->roles ) ) {

		$roles = array_intersect( array_values( $user->roles ), array_keys( $all_roles ) );

		// If there's a role in the array, use the first one

		if ( !empty( $roles ) ) {

			$role = array_shift( array_values( $roles ) );

		}

	}

	return apply_filters( 'bbp_get_user_blog_role', $role, $user_id, $user );

}

/**

 * Helper function hooked to 'bbp_edit_user_profile_update' action to save or

 * update user roles and capabilities.

 *

 * @since bbPress (r4235)

 *

 * @param int $user_id

 * @uses bbp_reset_user_caps() to reset caps

 * @usse bbp_save_user_caps() to save caps

 */

function bbp_profile_update_role( $user_id = 0 ) {

	// Bail if no user ID was passed

	if ( empty( $user_id ) )

		return;

	// Bail if no role

	if ( ! isset( $_POST['bbp-forums-role'] ) )

		return;

	// Fromus role we want the user to have

	$new_role    = sanitize_text_field( $_POST['bbp-forums-role'] );

	$forums_role = bbp_get_user_role( $user_id );

	// Set the new forums role

	if ( $new_role != $forums_role ) {

		bbp_set_user_role( $user_id, $new_role );

	}

}

/**

 * Add the default role to the current user if needed

 *

 * This function will bail if the forum is not global in a multisite

 * installation of WordPress, or if the user is marked as spam or deleted.

 *

 * @since bbPress (r3380)

 *

 * @uses is_user_logged_in() To bail if user is not logged in

 * @uses bbp_get_user_role() To bail if user already has a role

 * @uses bbp_is_user_inactive() To bail if user is inactive

 * @uses bbp_allow_global_access() To know whether to save role to database

 * @uses bbp_get_user_role_map() To get the WP to BBP role map array

 * @uses bbp_get_default_role() To get the site's default forums role

 * @uses get_option()

 *

 * @return If not multisite, not global, or user is deleted/spammed

 */

function bbp_set_current_user_default_role() {

	/** Sanity ****************************************************************/

	// Bail if deactivating bbPress

	if ( bbp_is_deactivation() )

		return;

	// Catch all, to prevent premature user initialization

	if ( ! did_action( 'set_current_user' ) )

		return;

	// Bail if not logged in or already a member of this site

	if ( ! is_user_logged_in() )

		return;

	// Get the current user ID

	$user_id = bbp_get_current_user_id();

	// Bail if user already has a forums role

	if ( bbp_get_user_role( $user_id ) )

		return;

	// Bail if user is marked as spam or is deleted

	if ( bbp_is_user_inactive( $user_id ) )

		return;

	/** Ready *****************************************************************/

	// Load up bbPress once

	$bbp         = bbpress();

	// Get whether or not to add a role to the user account

	$add_to_site = bbp_allow_global_access();

	// Get the current user's WordPress role. Set to empty string if none found.

	$user_role   = bbp_get_user_blog_role( $user_id );

	// Get the role map

	$role_map    = bbp_get_user_role_map();

	/** Forum Role ************************************************************/

	// Use a mapped role

	if ( isset( $role_map[$user_role] ) ) {

		$new_role = $role_map[$user_role];

	// Use the default role

	} else {

		$new_role = bbp_get_default_role();

	}

	/** Add or Map ************************************************************/

	// Add the user to the site

	if ( true == $add_to_site ) {

		$bbp->current_user->add_role( $new_role );

	// Don't add the user, but still give them the correct caps dynamically

	} else {		

		$bbp->current_user->caps[$new_role] = true;

		$bbp->current_user->get_role_caps();

	}

}

/**

 * Return a map of WordPress roles to bbPress roles. Used to automatically grant

 * appropriate bbPress roles to WordPress users that wouldn't already have a

 * role in the forums. Also guarantees WordPress admins get the Keymaster role.

 *

 * @since bbPress (r4334)

 *

 * @return array Filtered array of WordPress roles to bbPress roles

 */

function bbp_get_user_role_map() {

	// Get the default role once here

	$default_role = bbp_get_default_role();

	// Return filtered results, forcing admins to keymasters.

	return (array) apply_filters( 'bbp_get_user_role_map', array (

		'administrator' => bbp_get_keymaster_role(),

		'editor'        => $default_role,

		'author'        => $default_role,

		'contributor'   => $default_role,

		'subscriber'    => $default_role

	) );

}

/** User Status ***************************************************************/

/**

 * Checks if the user has been marked as a spammer.

 *

 * @since bbPress (r3355)

 *

 * @param int $user_id int The ID for the user.

 * @return bool True if spammer, False if not.

 */

function bbp_is_user_spammer( $user_id = 0 ) {

	// Default to current user

	if ( empty( $user_id ) && is_user_logged_in() )

		$user_id = bbp_get_current_user_id();

	// No user to check

	if ( empty( $user_id ) )

		return false;

	// Assume user is not spam

	$is_spammer = false;

	// Get user data

	$user = get_userdata( $user_id );

	// No user found

	if ( empty( $user ) ) {

		$is_spammer = false;

	// Check if spam

	} elseif ( !empty( $user->spam ) ) {

		$is_spammer = true;

	}

	return (bool) apply_filters( 'bp_core_is_user_spammer', $is_spammer );

}

/**

 * Mark a users topics and replies as spam when the user is marked as spam

 *

 * @since bbPress (r3405)

 *

 * @global WPDB $wpdb

 * @param int $user_id Optional. User ID to spam. Defaults to displayed user.

 * @uses bbp_is_single_user()

 * @uses bbp_is_user_home()

 * @uses bbp_get_displayed_user_field()

 * @uses is_super_admin()

 * @uses get_blogs_of_user()

 * @uses get_current_blog_id()

 * @uses bbp_get_topic_post_type()

 * @uses bbp_get_reply_post_type()

 * @uses switch_to_blog()

 * @uses get_post_type()

 * @uses bbp_spam_topic()

 * @uses bbp_spam_reply()

 * @uses restore_current_blog()

 *

 * @return If no user ID passed

 */

function bbp_make_spam_user( $user_id = 0 ) {

	// Use displayed user if it's not yourself

	if ( empty( $user_id ) && bbp_is_single_user() && !bbp_is_user_home() )

		$user_id = bbp_get_displayed_user_id();

	// Bail if no user ID

	if ( empty( $user_id ) )

		return;

	// Bail if user ID is super admin

	if ( is_super_admin( $user_id ) )

		return;

	// Arm the torpedos

	global $wpdb;

	// Get the blog IDs of the user to mark as spam

	$blogs = get_blogs_of_user( $user_id, true );

	// If user has no blogs, they are a guest on this site

	if ( empty( $blogs ) )

		$blogs[$wpdb->blogid] = array();

	// Make array of post types to mark as spam

	$post_types  = array( bbp_get_topic_post_type(), bbp_get_reply_post_type() );

	$post_types  = "'" . implode( "', '", $post_types ) . "'";

	$status      = bbp_get_public_status_id();

	// Loop through blogs and remove their posts

	foreach ( (array) array_keys( $blogs ) as $blog_id ) {

		// Switch to the blog ID

		switch_to_blog( $blog_id );

		// Get topics and replies

		$posts = $wpdb->get_col( "SELECT ID FROM {$wpdb->posts} WHERE post_author = {$user_id} AND post_status = '{$status}' AND post_type IN ({$post_types})" );

		// Loop through posts and spam them

		if ( !empty( $posts ) ) {

			foreach ( $posts as $post_id ) {

				// The routines for topics ang replies are different, so use the

				// correct one based on the post type

				switch ( get_post_type( $post_id ) ) {

					case bbp_get_topic_post_type() :

						bbp_spam_topic( $post_id );

						break;

					case bbp_get_reply_post_type() :

						bbp_spam_reply( $post_id );

						break;

				}

			}

		}

		// Switch back to current blog

		restore_current_blog();

	}

}

/**

 * Mark a users topics and replies as spam when the user is marked as spam

 *

 * @since bbPress (r3405)

 *

 * @global WPDB $wpdb

 * @param int $user_id Optional. User ID to unspam. Defaults to displayed user.

 *

 * @uses bbp_is_single_user()

 * @uses bbp_is_user_home()

 * @uses bbp_get_displayed_user_field()

 * @uses is_super_admin()

 * @uses get_blogs_of_user()

 * @uses bbp_get_topic_post_type()

 * @uses bbp_get_reply_post_type()

 * @uses switch_to_blog()

 * @uses get_post_type()

 * @uses bbp_unspam_topic()

 * @uses bbp_unspam_reply()

 * @uses restore_current_blog()

 *

 * @return If no user ID passed

 */

function bbp_make_ham_user( $user_id = 0 ) {

	// Use displayed user if it's not yourself

	if ( empty( $user_id ) && bbp_is_single_user() && !bbp_is_user_home() )

		$user_id = bbp_get_displayed_user_field();