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002 * Licensed to the Apache Software Foundation (ASF) under one *
003 * or more contributor license agreements. See the NOTICE file *
004 * distributed with this work for additional information *
005 * regarding copyright ownership. The ASF licenses this file *
006 * to you under the Apache License, Version 2.0 (the *
007 * "License"); you may not use this file except in compliance *
008 * with the License. You may obtain a copy of the License at *
009 * *
010 * http://www.apache.org/licenses/LICENSE-2.0 *
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015 * KIND, either express or implied. See the License for the *
016 * specific language governing permissions and limitations *
017 * under the License. *
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019
020
021
022 package org.apache.james.protocols.smtp.core.fastfail;
023
024
025 import org.apache.james.protocols.smtp.SMTPRetCode;
026 import org.apache.james.protocols.smtp.SMTPSession;
027 import org.apache.james.protocols.smtp.dsn.DSNStatus;
028 import org.apache.james.protocols.smtp.hook.HookResult;
029 import org.apache.james.protocols.smtp.hook.HookReturnCode;
030 import org.apache.james.protocols.smtp.hook.RcptHook;
031 import org.apache.mailet.MailAddress;
032
033 public class MaxRcptHandler implements RcptHook {
034
035 private int maxRcpt = 0;
036
037
038 /**
039 * Set the max rcpt for wich should be accepted
040 *
041 * @param maxRcpt
042 * The max rcpt count
043 */
044 public void setMaxRcpt(int maxRcpt) {
045 this.maxRcpt = maxRcpt;
046 }
047
048 /**
049 * @see org.apache.james.protocols.smtp.hook.RcptHook#doRcpt(org.apache.james.protocols.smtp.SMTPSession, org.apache.mailet.MailAddress, org.apache.mailet.MailAddress)
050 */
051 public HookResult doRcpt(SMTPSession session, MailAddress sender, MailAddress rcpt) {
052 if ((session.getRcptCount() + 1) > maxRcpt) {
053 session.getLogger().info("Maximum recipients of " + maxRcpt + " reached");
054
055 return new HookResult(HookReturnCode.DENY, SMTPRetCode.SYSTEM_STORAGE_ERROR, DSNStatus.getStatus(DSNStatus.NETWORK, DSNStatus.DELIVERY_TOO_MANY_REC)
056 + " Requested action not taken: max recipients reached");
057 } else {
058 return new HookResult(HookReturnCode.DECLINED);
059 }
060 }
061 }