functions.users.php

<?php
/*
 * @summary Returns the path to a given user's data directory
 * 
 * @param $username - The user's name
 * 
 * @returns The path to the given user's data directory
 */
function user_dirname($username)
{
	return "./data/users/$username/";
}

/*
 * @summary Checks to see if a user exists.
 * 
 * @param $username - The username to check.
 * 
 * @returns Whether the user exists.
 */
function user_exists($user_to_check)
{
	//changes commented out global getjson
	//global getjson;
	$userlist = getjson("data/userlist.json");
	foreach($userlist as $user_in_list)
	{
		if($user_to_check == $user_in_list)
			return true;
	}
	return false;
}

/*
 * @summary Determines whether a user is an administrator.
 * 
 * @param $username - The username to check.
 * 
 * @returns Whether the user is an admin.
 */
function user_isadmin($username)
{
	$isadmin = trim(file_get_contents(user_dirname($username) . "isadmin"));
	if($isadmin == "true")
		return true;
	else
		return false;
}

/*
 * @summary Get a user's public key.
 * 
 * @param $username = The username for which to fetch the public key.
 * 
 * @returns The given username's public key.
 */
function user_publickey($username)
{
	return trim(file_get_contents(user_dirname($username) . "publickey"));
}
?>