/
IPService.php
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/
IPService.php
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<?php
namespace Concrete\Core\Permission;
use Concrete\Core\Config\Repository\Repository;
use Concrete\Core\Database\Connection\Connection;
use Concrete\Core\Http\Request;
use Concrete\Core\Utility\IPAddress;
use DateTime;
use IPLib\Address\AddressInterface;
use IPLib\Factory as IPFactory;
use IPLib\Range\RangeInterface;
class IPService
{
/**
* Bit mask for blacklist ranges.
*
* @var int
*/
const IPRANGEFLAG_BLACKLIST = 0x0001;
/**
* Bit mask for whitelist ranges.
*
* @var int
*/
const IPRANGEFLAG_WHITELIST = 0x0002;
/**
* Bit mask for manually generated ranges.
*
* @var int
*/
const IPRANGEFLAG_MANUAL = 0x0010;
/**
* Bit mask for automatically generated ranges.
*
* @var int
*/
const IPRANGEFLAG_AUTOMATIC = 0x0020;
/**
* IP range type: manually added to the blacklist.
*
* @var int
*/
const IPRANGETYPE_BLACKLIST_MANUAL = 0x0011; // IPRANGEFLAG_BLACKLIST | IPRANGEFLAG_MANUAL
/**
* IP range type: automatically added to the blacklist.
*
* @var int
*/
const IPRANGETYPE_BLACKLIST_AUTOMATIC = 0x0021; // IPRANGEFLAG_BLACKLIST | IPRANGEFLAG_AUTOMATIC
/**
* IP range type: manually added to the whitelist.
*
* @var int
*/
const IPRANGETYPE_WHITELIST_MANUAL = 0x0012; // IPRANGEFLAG_WHITELIST | IPRANGEFLAG_MANUAL
/**
* @var Repository
*/
protected $config;
/**
* @var Connection
*/
protected $connection;
/**
* @var Request
*/
protected $request;
/**
* @param Repository $config
* @param Connection $connection
* @param Request $request
*/
public function __construct(Repository $config, Connection $connection, Request $request)
{
$this->config = $config;
$this->connection = $connection;
$this->request = $request;
}
/**
* Get the IP address of the current request.
*
* @return \IPLib\Address\AddressInterface
*/
public function getRequestIPAddress()
{
return IPFactory::addressFromString($this->request->getClientIp());
}
/**
* Check if an IP adress is blacklisted.
*
* @return bool
*/
public function isBlacklisted(AddressInterface $ip = null)
{
if ($ip === null) {
$ip = $this->getRequestIPAddress();
}
$rangeType = $this->getRangeType($ip);
return $rangeType !== null && ($rangeType & static::IPRANGEFLAG_BLACKLIST) === static::IPRANGEFLAG_BLACKLIST;
}
/**
* Check if an IP adress is blacklisted.
*
* @return bool
*/
public function isWhitelisted(AddressInterface $ip = null)
{
if ($ip === null) {
$ip = $this->getRequestIPAddress();
}
$rangeType = $this->getRangeType($ip);
return $rangeType !== null && ($rangeType & static::IPRANGEFLAG_WHITELIST) === static::IPRANGEFLAG_WHITELIST;
}
/**
* Get the (localized) message telling the users that their IP address has been banned.
*
* @return string
*/
public function getErrorMessage()
{
return t('Unable to complete action: your IP address has been banned. Please contact the administrator of this site for more information.');
}
/**
* Add the current IP address to the list of IPs with failed login attempts.
*
* @param AddressInterface $ip the IP address to log (if null, we'll use the current IP address)
* @param bool $ignoreConfig if set to true, we'll add the record even if the IP ban system is disabled in the configuration
*/
public function logFailedLogin(AddressInterface $ip = null, $ignoreConfig = false)
{
if ($ignoreConfig || $this->config->get('concrete.security.ban.ip.enabled')) {
if ($ip === null) {
$ip = $this->getRequestIPAddress();
}
$comparableIP = $ip->getComparableString();
$this->connection->executeQuery(
'
INSERT INTO FailedLoginAttempts
(flaIp, flaTimestamp)
VALUES
(?, ' . $this->connection->getDatabasePlatform()->getNowExpression() . ')
',
[$ip->getComparableString()]
);
}
}
/**
* Check if the current IP address has reached the failed login attempts threshold.
*
* @param AddressInterface $ip the IP address to log (if null, we'll use the current IP address)
* @param bool $ignoreConfig if set to true, we'll check the IP even if the IP ban system is disabled in the configuration
*
* @return bool
*/
public function failedLoginsThresholdReached(AddressInterface $ip = null, $ignoreConfig = false)
{
$result = false;
if ($ignoreConfig || $this->config->get('concrete.security.ban.ip.enabled')) {
if ($ip === null) {
$ip = $this->getRequestIPAddress();
}
if (!$this->isWhitelisted($ip)) {
$thresholdSeconds = (int) $this->config->get('concrete.security.ban.ip.time');
$thresholdTimestamp = new DateTime("-{$thresholdSeconds} seconds");
$rs = $this->connection->executeQuery(
'
SELECT
' . $this->connection->getDatabasePlatform()->getCountExpression('lcirID') . ' AS n
FROM
FailedLoginAttempts
WHERE
flaIp = ?
AND flaTimestamp > ?
',
[$ip->getComparableString(), $thresholdTimestamp->format($this->connection->getDatabasePlatform()->getDateTimeFormatString())]
);
$count = $rs->fetchColumn();
$rs->closeCursor();
$thresholdAttempts = (int) $this->config->get('concrete.security.ban.ip.attempts');
if ($count !== false && (int) $count >= $thresholdAttempts) {
$result = true;
}
}
}
return $result;
}
/**
* Add an IP address to the list of IPs banned for too many failed login attempts.
*
* @param AddressInterface $ip the IP to add to the blacklist (if null, we'll use the current IP address)
* @param bool $ignoreConfig if set to true, we'll add the IP address even if the IP ban system is disabled in the configuration
*/
public function addToBlacklistForThresholdReached(AddressInterface $ip = null, $ignoreConfig = false)
{
if ($ignoreConfig || $this->config->get('concrete.security.ban.ip.enabled')) {
if ($ip === null) {
$ip = $this->getRequestIPAddress();
}
$banDurationMinutes = (int) $this->config->get('concrete.security.ban.ip.length');
if ($banDurationMinutes > 0) {
$expires = new DateTime("+{$banDurationMinutes} minutes");
} else {
$expires = null;
}
$this->createRange(IPFactory::rangeFromBoundaries($ip, $ip), static::IPRANGETYPE_BLACKLIST_AUTOMATIC, $expires);
}
}
/**
* Add persist an IP address range type.
*
* @param RangeInterface $range the IP address range to persist
* @param int $type The range type (one of the IPService::IPRANGETYPE_... constants)
* @param DateTime $expiration The optional expiration of the range type
*
* @return IPRange
*/
public function createRange(RangeInterface $range, $type, DateTime $expiration = null)
{
$dateTimeFormat = $this->connection->getDatabasePlatform()->getDateTimeFormatString();
$this->connection->executeQuery(
'
INSERT INTO LoginControlIpRanges
(lcirIpFrom, lcirIpTo, lcirType, lcirExpires)
VALUES
(?, ?, ?, ?)
',
[
$range->getComparableStartString(),
$range->getComparableEndString(),
$type,
($expiration === null) ? null : $expiration->format($dateTimeFormat),
]
);
$id = $this->connection->lastInsertId();
$rs = $this->connection->executeQuery('SELECT * FROM LoginControlIpRanges WHERE lcirID = ? LIMIT 1', [$id]);
$row = $rs->fetch();
$rs->closeCursor();
return IPRange::createFromRow($row, $dateTimeFormat);
}
/**
* Get the list of currently available ranges.
*
* @param int $type (one of the IPService::IPRANGETYPE_... constants)
* @param bool $includeExpired Include expired records?
*
* @return IPRange[]|\Generator
*/
public function getRanges($type, $includeExpired = false)
{
$sql = 'SELECT * FROM LoginControlIpRanges WHERE lcirType = ?';
$params = [(int) $type];
if (!$includeExpired) {
$sql .= ' AND (lcirExpires IS NULL OR lcirExpires > ' . $this->connection->getDatabasePlatform()->getNowExpression() . ')';
}
$sql .= ' ORDER BY lcirID';
$result = [];
$dateTimeFormat = $this->connection->getDatabasePlatform()->getDateTimeFormatString();
$rs = $this->connection->executeQuery($sql, $params);
while (($row = $rs->fetch()) !== false) {
yield IPRange::createFromRow($row, $dateTimeFormat);
}
}
/**
* Find already defined range given its record ID.
*
* @param int $id
*
* @return IPRange|null
*/
public function getRangeByID($id)
{
$result = null;
if ($id) {
$rs = $this->connection->executeQuery(
'SELECT * FROM LoginControlIpRanges WHERE lcirID = ? LIMIT 1',
[$id]
);
$row = $rs->fetch();
$rs->closeCursor();
if ($row !== false) {
$result = IPRange::createFromRow($row, $this->connection->getDatabasePlatform()->getDateTimeFormatString());
}
}
return $result;
}
/**
* Delete a range record.
*
* @param IPRange|int $range
*/
public function deleteRange($range)
{
if ($range instanceof IPRange) {
$id = $range->getID();
} else {
$id = (int) $range;
}
if ($id) {
$this->connection->executeQuery('DELETE FROM LoginControlIpRanges WHERE lcirID = ? LIMIT 1', [$id]);
}
}
/**
* Get the range type (if defined) of an IP adress.
*
* @return int|null One of the IPRANGETYPE_... constants (or null if range is not defined).
*/
protected function getRangeType(AddressInterface $ip)
{
$comparableIP = $ip->getComparableString();
$rs = $this->connection->executeQuery(
'
SELECT
lcirType
FROM
LoginControlIpRanges
WHERE
lcirIpFrom <= ? AND ? <= lcirIpTo
AND (lcirExpires IS NULL OR lcirExpires > ' . $this->connection->getDatabasePlatform()->getNowExpression() . ')
',
[$comparableIP, $comparableIP]
);
$type = null;
while (($col = $rs->fetchColumn()) !== false) {
$type = (int) $col;
if (($type & static::IPRANGEFLAG_WHITELIST) === static::IPRANGEFLAG_WHITELIST) {
break;
}
}
$rs->closeCursor();
return $type;
}
/**
* Delete the failed login attempts.
*
* @param int|null $maxAge the maximum age (in seconds) of the records (specify an empty value do delete all records)
*
* @return int return the number of records deleted
*/
public function deleteFailedLoginAttempts($maxAge = null)
{
$sql = 'DELETE FROM FailedLoginAttempts';
if ($maxAge) {
$platform = $this->connection->getDatabasePlatform();
$sql .= ' WHERE flaTimestamp <= ' . $platform->getDateSubSecondsExpression($platform->getNowExpression(), (int) $maxAge);
}
return (int) $this->connection->executeQuery($sql)->rowCount();
}
/**
* Clear the IP addresses automatically blacklisted.
*
* @param bool $onlyExpired Clear only the expired bans?
*/
public function deleteAutomaticBlacklist($onlyExpired = true)
{
$sql = 'DELETE FROM LoginControlIpRanges WHERE lcirType = ' . (int) static::IPRANGETYPE_BLACKLIST_AUTOMATIC;
if ($onlyExpired) {
$platform = $this->connection->getDatabasePlatform();
$sql .= ' AND lcirExpires <= ' . $platform->getNowExpression();
}
return (int) $this->connection->executeQuery($sql)->rowCount();
}
/**
* @deprecated Use \Core::make('ip')->getRequestIPAddress()
*/
public function getRequestIP()
{
$ip = $this->getRequestIPAddress();
return new IPAddress($ip === null ? null : (string) $ip);
}
/**
* @deprecated Use \Core::make('ip')->isBlacklisted()
*/
public function isBanned($ip = false)
{
$ipAddress = null;
if ($ip instanceof IPAddress) {
$ipAddress = IPFactory::addressFromString($ip->getIp(IPAddress::FORMAT_IP_STRING));
}
return $this->isBlacklisted($ipAddress);
}
/**
* @deprecated Use \Core::make('ip')->addToBlacklist()
*/
public function createIPBan($ip = false, $ignoreConfig = false)
{
$ipAddress = null;
if ($ip instanceof IPAddress) {
$ipAddress = IPFactory::addressFromString($ip->getIp(IPAddress::FORMAT_IP_STRING));
}
$this->addToBlacklistForThresholdReached($ipAddress, $ignoreConfig);
}
/**
* @deprecated Use \Core::make('ip')->logFailedLogin()
*/
public function logSignupRequest($ignoreConfig = false)
{
$this->logFailedLogin(null, $ignoreConfig);
}
/**
* @deprecated use signupRequestThresholdReached (same syntax, just fixed the typo in the name)
*/
public function signupRequestThreshholdReached($ignoreConfig = false)
{
return $this->failedLoginsThresholdReached(null, $ignoreConfig);
}
/**
* @deprecated Use \Core::make('ip')->failedLoginsThresholdReached()
*/
public function signupRequestThresholdReached($ignoreConfig = false)
{
return $this->failedLoginsThresholdReached(null, $ignoreConfig);
}
}