webmum/include/php/global.inc.php

<?php

/*
 * Message manager
 * Types of notifications:
 * success
 * fail
 * info
 */

$MESSAGES = array();

function add_message($type, $message)
{
	global $MESSAGES;
	$newmessage = array();
	$newmessage['type'] = $type;
	$newmessage['message'] = $message;

	$MESSAGES[] = $newmessage;
}

function output_messages()
{
	global $MESSAGES;
	if(count($MESSAGES) > 0) {
		echo '<div class="messages">';
		foreach($MESSAGES as $message){
			echo '<div class="notification notification-'.$message['type'].'">'.$message['message'].'</div>';
		}
		echo '</div>';
	}
}


/*
 * Function checks password input for new password
 * Return codes:
 * true: password is okay
 * 2: One password field is empty
 * 3: Passwords are not equal
 * 4: Passwort is too snort
 */

function check_new_pass($pass1, $pass2)
{
	global $PASS_ERR;
	global $PASS_ERR_MSG;
	// Check if one passwort input is empty
	if($pass1 !== "" && $pass2 !== ""){
		// Check if password are equal
		if($pass1 === $pass2){
			// Check if password length is okay
			if(strlen($pass1) >= MIN_PASS_LENGTH){
				// Password is okay.
				return true;
			}
			else{
				// Password is not long enough
				$PASS_ERR = 4;
				$PASS_ERR_MSG = "Password is not long enough. Please enter a password which has ".MIN_PASS_LENGTH." characters or more.";

				return $PASS_ERR;
			}
		}
		else{
			// Passwords are not equal
			$PASS_ERR = 3;
			$PASS_ERR_MSG = "Passwords are not equal.";

			return $PASS_ERR;
		}
	}
	else{
		// One password is empty.
		$PASS_ERR = 2;
		$PASS_ERR_MSG = "Not all password fields were filled out";

		return $PASS_ERR;
	}
}

function get_hash()
{
	switch(PASS_HASH_SCHEMA){
		case "SHA-512":
			return '$6$rounds=5000$';
			break;
		
		case "SHA-256":
			return '$5$rounds=5000$';
			break;
		
		case "BLOWFISH":
			return '$2a$09$';
			break;
	}
}

function gen_pass_hash($pass)
{
	$salt = base64_encode(rand(1, 1000000) + microtime());
	$hash_schema = get_hash();
	$pass_hash = crypt($pass, $hash_schema.$salt.'$');

	return $pass_hash;
}

function write_pass_hash_to_db($pass_hash, $uid)
{
	global $db;
	$uid = $db->escape_string($uid);
	$pass_hash = $db->escape_string($pass_hash);
	$db->query("UPDATE `".DBT_USERS."` SET `".DBC_USERS_PASSWORD."` = '$pass_hash' WHERE `".DBC_USERS_ID."` = '$uid';");
}


/*
 * Add message to logfile
 */
function writeLog($text)
{
	if(defined('WRITE_LOG') && defined('WRITE_LOG_PATH')){
		$logdestination = realpath(WRITE_LOG_PATH).DIRECTORY_SEPARATOR."webmum.log";
		if(is_writable(WRITE_LOG_PATH)){
			$logfile = fopen($logdestination, "a") or die("Unable to create or open logfile \"".$logdestination."\" in root directory!");
			fwrite($logfile, date('M d H:i:s').": ".$text."\n");
			fclose($logfile);
		}
		else{
			die("Directory \"".WRITE_LOG_PATH."\" is not writable");
		}
	}
}


/**
 * @param string $url
 * @return string
 */
function url($url)
{
	$base = FRONTEND_BASE_PATH;
	if (substr($base, -1) === '/') {
		$base = substr($base, 0, -1);
	}
	if (strlen($url) > 0 && $url[0] === '/') {
		$url = substr($url, 1);
	}
	return $base.'/'.$url;
}

/**
 * @param string $url
 */
function redirect($url)
{
	header("Location: ".url($url));
	exit;
}


/**
 * Split comma, semicolon or newline separated list of emails to string
 *
 * @param string $input
 *
 * @return array
 */
function stringToEmails($input)
{
	$separators = array(',', ';', "\r\n", "\r", "\n", '|', ':');

	$list = explode('|', str_replace($separators, '|', $input));
	foreach($list as $i => &$email){
		if(empty($email)){
			unset($list[$i]);
		}
		else{
			$email = trim($email);
		}
	}

	return array_values(
		array_map(
			'strtolower',
			array_unique(
				$list
			)
		)
	);
}

/**
 * List of emails to comma or $glue separated list string
 *
 * @param array $list
 * @param string $glue
 *
 * @return string
 */
function emailsToString($list, $glue = ',')
{
	return implode($glue, $list);
}

/**
 * Format single email address
 *
 * @param string $input
 * @return string
 */
function formatEmail($input)
{
	return strtolower(trim($input));
}

/**
 * Format email addresses (single, multiple in separated list, or array of email addresses)
 *
 * @param string|array $input
 * @param string $glue
 * @return string
 */
function formatEmails($input, $glue)
{
	if(!is_array($input)){
		$input = stringToEmails($input);
	}

	return emailsToString($input, $glue);
}


?>