| /**************************************************************** |
| * Licensed to the Apache Software Foundation (ASF) under one * |
| * or more contributor license agreements. See the NOTICE file * |
| * distributed with this work for additional information * |
| * regarding copyright ownership. The ASF licenses this file * |
| * to you 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.apache.james.transport.matchers; |
| |
| import java.util.Collection; |
| import java.util.Locale; |
| import java.util.Optional; |
| |
| import javax.mail.MessagingException; |
| |
| import org.apache.james.core.MailAddress; |
| import org.apache.james.spamassassin.SpamAssassinResult; |
| import org.apache.mailet.Mail; |
| import org.apache.mailet.base.GenericMatcher; |
| |
| import com.google.common.collect.ImmutableList; |
| |
| /** |
| * <p> |
| * Matches mails having a <pre>org.apache.james.spamassassin.status</pre> per recipient header with a <pre>Yes</pre> value. |
| * </p> |
| * |
| * As an example, here is a part of a mailet pipeline which can be used in your LocalDelivery processor: |
| * <pre>{@code |
| * <!-- SpamAssassing mailets pipeline --> |
| * <mailet match="RecipientIsLocal" class="SpamAssassin"> |
| * <spamdHost>spamassassin</spamdHost> |
| * <spamdPort>783</spamdPort> |
| * </mailet> |
| * <mailet match="IsMarkedAsSpam" class="WithStorageDirective"> |
| * <targetFolderName>Spam</targetFolderName> |
| * </mailet> |
| * <!-- End of SpamAssassing mailets pipeline --> |
| * }</pre> |
| */ |
| public class IsMarkedAsSpam extends GenericMatcher { |
| |
| private static final String YES = "yes"; |
| |
| private String spamStatusHeader = SpamAssassinResult.STATUS_MAIL.asString(); |
| |
| @Override |
| public String getMatcherInfo() { |
| return "Has " + spamStatusHeader + " per recipient header with a Yes value"; |
| } |
| |
| @Override |
| public void init() throws MessagingException { |
| spamStatusHeader = Optional.ofNullable(getCondition()) |
| .filter(s -> !s.isEmpty()) |
| .orElse(SpamAssassinResult.STATUS_MAIL.asString()); |
| } |
| |
| @Override |
| public Collection<MailAddress> match(Mail mail) { |
| return mail.getRecipients() |
| .stream() |
| .filter(recipient -> isMarkedAsSpam(mail, recipient)) |
| .collect(ImmutableList.toImmutableList()); |
| } |
| |
| public boolean isMarkedAsSpam(Mail mail, MailAddress recipient) { |
| return mail.getPerRecipientSpecificHeaders().getHeadersForRecipient(recipient) |
| .stream() |
| .filter(header -> header.getName().equals(spamStatusHeader)) |
| .anyMatch(header -> header.getValue().toLowerCase(Locale.US).startsWith(YES)); |
| } |
| |
| } |