org.nightcode.milter.command.HeloCommandProcessor Maven / Gradle / Ivy

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Java implementation of the Sendmail Milter protocol.

There is a newer version: 0.8

/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.nightcode.milter.command;

import java.nio.charset.StandardCharsets;

import org.nightcode.milter.Code;
import org.nightcode.milter.MilterContext;
import org.nightcode.milter.MilterException;
import org.nightcode.milter.codec.MilterPacket;
import org.nightcode.milter.util.Log;
import org.nightcode.milter.util.MilterPackets;

import static java.lang.String.format;
import static org.nightcode.milter.CommandCode.SMFIC_HELO;

class HeloCommandProcessor implements CommandProcessor {

  @Override public Code command() {
    return SMFIC_HELO;
  }

  @Override public void submit(MilterContext context, MilterPacket packet) throws MilterException {
    context.setSessionStep(SMFIC_HELO);

    int i = MilterPackets.indexOfZeroTerm(packet.payload());
    if (i < 0) {
      Log.info().log(getClass(), format("[%s] received invalid packet: %s", context.id(), packet));
      context.handler().abortSession(context, packet);
      return;
    }

    String helohost = new String(packet.payload(), 0, i, StandardCharsets.UTF_8);
    context.handler().helo(context, helohost);
  }
}