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package com.earth2me.essentials.anticheat.checks.chat;
import com.earth2me.essentials.anticheat.NoCheat;
import com.earth2me.essentials.anticheat.NoCheatPlayer;
import com.earth2me.essentials.anticheat.actions.ParameterName;
import com.earth2me.essentials.anticheat.data.Statistics.Id;
import java.util.Locale;
/**
* The SpamCheck will count messages and commands over a short timeframe to see if the player tried to send too many of
* them
*
*/
public class SpamCheck extends ChatCheck
{
public SpamCheck(NoCheat plugin)
{
super(plugin, "chat.spam");
}
public boolean check(NoCheatPlayer player, ChatData data, ChatConfig cc)
{
boolean cancel = false;
// Maybe it's a command and on the whitelist
for (String s : cc.spamWhitelist)
{
if (data.message.startsWith(s))
{
// It is
return false;
}
}
int commandLimit = cc.spamCommandLimit;
int messageLimit = cc.spamMessageLimit;
long timeframe = cc.spamTimeframe;
final long time = System.currentTimeMillis();
// Has enough time passed? Then reset the counters
if (data.spamLastTime + timeframe <= time)
{
data.spamLastTime = time;
data.messageCount = 0;
data.commandCount = 0;
}
// Security check, if the system time changes
else if (data.spamLastTime > time)
{
data.spamLastTime = Integer.MIN_VALUE;
}
// Increment appropriate counter
if (data.message.startsWith("/"))
{
data.commandCount++;
}
else
{
data.messageCount++;
}
// Did the player go over the limit on at least one of the counters?
if (data.messageCount > messageLimit || data.commandCount > commandLimit)
{
// Set the vl as the number of messages above the limit and
// increment statistics
data.spamVL = Math.max(0, data.messageCount - messageLimit);
data.spamVL += Math.max(0, data.commandCount - commandLimit);
incrementStatistics(player, Id.CHAT_SPAM, 1);
// Execute whatever actions are associated with this check and the
// violation level and find out if we should cancel the event
cancel = executeActions(player, cc.spamActions, data.spamVL);
}
return cancel;
}
@Override
public String getParameter(ParameterName wildcard, NoCheatPlayer player)
{
if (wildcard == ParameterName.VIOLATIONS)
{
return String.format(Locale.US, "%d", getData(player).spamVL);
}
else
{
return super.getParameter(wildcard, player);
}
}
}
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