chibenwa commented on code in PR #2490: URL: https://github.com/apache/james-project/pull/2490#discussion_r1830587210
########## mailet/standard/src/main/java/org/apache/james/transport/mailets/FoldLongLines.java: ########## @@ -0,0 +1,64 @@ +/**************************************************************** + * 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.mailets; + +import java.util.List; + +import jakarta.mail.Header; +import jakarta.mail.MessagingException; + +import org.apache.commons.lang3.stream.Streams; +import org.apache.mailet.Mail; +import org.apache.mailet.base.GenericMailet; + +import com.github.fge.lambdas.Throwing; + +/** + * This mailet fold (wrap) any header lines of the mail that exceed the maximum number of characters. + * <br /> + * It takes only one parameter: + * <ul> + * <li>maxCharacters: maximum number of characters. Default to 998. + * </ul> + */ +public class FoldLongLines extends GenericMailet { + public static final String MAX_CHARACTERS_PARAMETER_NAME = "maxCharacters"; + + private static final int DEFAULT_MAX_CHARACTERS = 998; + + private Integer maxCharacters; + + @Override + public void init() throws MessagingException { + maxCharacters = getInitParameterAsOptional(MAX_CHARACTERS_PARAMETER_NAME).map(Integer::parseInt).orElse(DEFAULT_MAX_CHARACTERS); + } + + @Override + public void service(Mail mail) throws MessagingException { + List<Header> foldedHeaders = Streams.of(mail.getMessage().getAllHeaders().asIterator()).map(this::fold).toList(); + foldedHeaders.forEach(Throwing.consumer(header -> mail.getMessage().setHeader(header.getName(), header.getValue()))); + } + + private Header fold(Header header) { + // TODO After new release of mime4j, update to use MimeUtil of mime4j and remove MimeUtil class file Review Comment: Link a PR, a commit on master, a ticket number, anything... -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: notifications-unsubscr...@james.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: notifications-unsubscr...@james.apache.org For additional commands, e-mail: notifications-h...@james.apache.org
