count login failures by ip address and not by name

This commit is contained in:
EbonJaguar 2016-06-13 15:58:03 -04:00
parent 043ee90254
commit 367f785610
3 changed files with 55 additions and 65 deletions

View File

@ -18,9 +18,10 @@ import java.util.concurrent.ConcurrentHashMap;
/**
* Manager for handling tempbans
*/
// TODO Gnat008 20160613: Figure out the best way to remove entries based on time
public class TempbanManager implements SettingsDependent {
private final ConcurrentHashMap<String, Integer> playerCounts;
private final ConcurrentHashMap<String, Integer> ipLoginFailureCounts;
private final long MINUTE_IN_MILLISECONDS = 60000;
@ -34,45 +35,49 @@ public class TempbanManager implements SettingsDependent {
@Inject
TempbanManager(BukkitService bukkitService, Messages messages, NewSetting settings) {
this.playerCounts = new ConcurrentHashMap<>();
this.ipLoginFailureCounts = new ConcurrentHashMap<>();
this.bukkitService = bukkitService;
this.messages = messages;
loadSettings(settings);
}
/**
* Increases the failure count for the given player.
* Increases the failure count for the given IP address.
*
* @param name the player's name
* @param address The player's IP address
*/
public void increaseCount(String name) {
public void increaseCount(String address) {
if (isEnabled) {
String nameLower = name.toLowerCase();
Integer count = playerCounts.get(nameLower);
Integer count = ipLoginFailureCounts.get(address);
if (count == null) {
playerCounts.put(nameLower, 1);
ipLoginFailureCounts.put(address, 1);
} else {
playerCounts.put(nameLower, count + 1);
ipLoginFailureCounts.put(address, count + 1);
}
}
}
public void resetCount(String name) {
if (isEnabled) {
playerCounts.remove(name.toLowerCase());
}
}
/**
* Return whether the player should be tempbanned.
* Set the failure count for a given IP address to 0.
*
* @param name The player's name
* @return True if the player should be tempbanned
* @param address The IP address
*/
public boolean shouldTempban(String name) {
public void resetCount(String address) {
if (isEnabled) {
Integer count = playerCounts.get(name.toLowerCase());
ipLoginFailureCounts.remove(address);
}
}
/**
* Return whether the IP address should be tempbanned.
*
* @param address The player's IP address
* @return True if the IP should be tempbanned
*/
public boolean shouldTempban(String address) {
if (isEnabled) {
Integer count = ipLoginFailureCounts.get(address);
return count != null && count >= threshold;
}
@ -80,16 +85,13 @@ public class TempbanManager implements SettingsDependent {
}
/**
* Tempban a player for failing to log in too many times.
* This bans the player's IP address, and calculates the expire
* time based on the time the method was called.
* Tempban a player's IP address for failing to log in too many times.
* This calculates the expire time based on the time the method was called.
*
* @param player The player to tempban
*/
public void tempbanPlayer(final Player player) {
if (isEnabled) {
resetCount(player.getName());
final String ip = Utils.getPlayerIp(player);
final String reason = messages.retrieveSingle(MessageKey.TEMPBAN_MAX_LOGINS);
@ -104,6 +106,8 @@ public class TempbanManager implements SettingsDependent {
player.kickPlayer(reason);
}
});
resetCount(ip);
}
}

View File

@ -90,19 +90,6 @@ public class AsynchronousLogin implements AsynchronousProcess {
return captchaManager.isCaptchaRequired(playerName);
}
/**
* Queries the {@link fr.xephi.authme.cache.TempbanManager} to
* see if the player has reached the tempban threshold.
*
* @param player The player to check
* @return True if the player needs to be tempbanned
*/
private boolean shouldTempban(Player player) {
final String playerName = player.getName();
return tempbanManager.shouldTempban(playerName);
}
/**
* Checks the precondition for authentication (like user known) and returns
* the playerAuth-State
@ -168,9 +155,9 @@ public class AsynchronousLogin implements AsynchronousProcess {
final String ip = Utils.getPlayerIp(player);
// Increase the counts here before knowing the result of the login.
// If the login is successful, we clear the count for the player.
// If the login is successful, we clear the captcha count for the player.
captchaManager.increaseCount(name);
tempbanManager.increaseCount(name);
tempbanManager.increaseCount(ip);
if ("127.0.0.1".equals(pAuth.getIp()) && !pAuth.getIp().equals(ip)) {
pAuth.setIp(ip);
@ -191,7 +178,6 @@ public class AsynchronousLogin implements AsynchronousProcess {
database.updateSession(auth);
captchaManager.resetCounts(name);
tempbanManager.resetCount(name);
player.setNoDamageTicks(0);
if (!forceLogin)
@ -237,7 +223,7 @@ public class AsynchronousLogin implements AsynchronousProcess {
player.kickPlayer(service.retrieveSingleMessage(MessageKey.WRONG_PASSWORD));
}
});
} else if (shouldTempban(player)) {
} else if (tempbanManager.shouldTempban(ip)) {
tempbanManager.tempbanPlayer(player);
} else {
service.send(player, MessageKey.WRONG_PASSWORD);

View File

@ -34,76 +34,76 @@ public class TempbanManagerTest {
// given
NewSetting settings = mockSettings(3, 60);
TempbanManager manager = new TempbanManager(bukkitService, messages, settings);
String player = "Tester";
String address = "192.168.1.1";
// when
for (int i = 0; i < 2; ++i) {
manager.increaseCount(player);
manager.increaseCount(address);
}
// then
assertThat(manager.shouldTempban(player), equalTo(false));
manager.increaseCount(player);
assertThat(manager.shouldTempban(player), equalTo(true));
assertThat(manager.shouldTempban("otherPlayer"), equalTo(false));
assertThat(manager.shouldTempban(address), equalTo(false));
manager.increaseCount(address);
assertThat(manager.shouldTempban(address), equalTo(true));
assertThat(manager.shouldTempban("10.0.0.1"), equalTo(false));
}
@Test
public void shouldIncreaseAndResetCount() {
// given
String player = "plaYah";
String address = "192.168.1.2";
NewSetting settings = mockSettings(3, 60);
TempbanManager manager = new TempbanManager(bukkitService, messages, settings);
// when
manager.increaseCount(player);
manager.increaseCount(player);
manager.increaseCount(player);
manager.increaseCount(address);
manager.increaseCount(address);
manager.increaseCount(address);
// then
assertThat(manager.shouldTempban(player), equalTo(true));
assertHasCount(manager, player, 3);
assertThat(manager.shouldTempban(address), equalTo(true));
assertHasCount(manager, address, 3);
// when 2
manager.resetCount(player);
manager.resetCount(address);
// then 2
assertThat(manager.shouldTempban(player), equalTo(false));
assertHasCount(manager, player, null);
assertThat(manager.shouldTempban(address), equalTo(false));
assertHasCount(manager, address, null);
}
@Test
public void shouldNotIncreaseCountForDisabledTempban() {
// given
String player = "playah";
String address = "192.168.1.3";
NewSetting settings = mockSettings(1, 5);
given(settings.getProperty(SecuritySettings.TEMPBAN_ON_MAX_LOGINS)).willReturn(false);
TempbanManager manager = new TempbanManager(bukkitService, messages, settings);
// when
manager.increaseCount(player);
manager.increaseCount(address);
// then
assertThat(manager.shouldTempban(player), equalTo(false));
assertHasCount(manager, player, null);
assertThat(manager.shouldTempban(address), equalTo(false));
assertHasCount(manager, address, null);
}
@Test
public void shouldNotCheckCountIfTempbanIsDisabled() {
// given
String player = "playah";
String address = "192.168.1.4";
NewSetting settings = mockSettings(1, 5);
TempbanManager manager = new TempbanManager(bukkitService, messages, settings);
given(settings.getProperty(SecuritySettings.TEMPBAN_ON_MAX_LOGINS)).willReturn(false);
// when
manager.increaseCount(player);
manager.increaseCount(address);
// assumptions
assertThat(manager.shouldTempban(player), equalTo(true));
assertHasCount(manager, player, 1);
assertThat(manager.shouldTempban(address), equalTo(true));
assertHasCount(manager, address, 1);
// end assumptions
manager.loadSettings(settings);
boolean result = manager.shouldTempban(player);
boolean result = manager.shouldTempban(address);
// then
assertThat(result, equalTo(false));
@ -117,10 +117,10 @@ public class TempbanManagerTest {
return settings;
}
private static void assertHasCount(TempbanManager manager, String player, Integer count) {
private static void assertHasCount(TempbanManager manager, String address, Integer count) {
@SuppressWarnings("unchecked")
Map<String, Integer> playerCounts = (Map<String, Integer>) ReflectionTestUtils
.getFieldValue(TempbanManager.class, manager, "playerCounts");
assertThat(playerCounts.get(player.toLowerCase()), equalTo(count));
.getFieldValue(TempbanManager.class, manager, "ipLoginFailureCounts");
assertThat(playerCounts.get(address), equalTo(count));
}
}