001 /****************************************************************
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 *
011 * *
012 * Unless required by applicable law or agreed to in writing, *
013 * software distributed under the License is distributed on an *
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY *
015 * KIND, either express or implied. See the License for the *
016 * specific language governing permissions and limitations *
017 * under the License. *
018 ****************************************************************/
019
020 package org.apache.james.mime4j.field;
021
022 import java.io.StringReader;
023
024 import org.apache.james.mime4j.codec.DecodeMonitor;
025 import org.apache.james.mime4j.dom.FieldParser;
026 import org.apache.james.mime4j.dom.field.ContentLocationField;
027 import org.apache.james.mime4j.field.structured.parser.ParseException;
028 import org.apache.james.mime4j.field.structured.parser.StructuredFieldParser;
029 import org.apache.james.mime4j.stream.Field;
030
031 /**
032 * Represents a <code>Content-Location</code> field.
033 */
034 public class ContentLocationFieldImpl extends AbstractField implements ContentLocationField {
035
036 private boolean parsed = false;
037 private String location;
038 private ParseException parseException;
039
040 ContentLocationFieldImpl(Field rawField, DecodeMonitor monitor) {
041 super(rawField, monitor);
042 }
043
044 private void parse() {
045 parsed = true;
046 String body = getBody();
047 location = null;
048 if (body != null) {
049 StringReader stringReader = new StringReader(body);
050 StructuredFieldParser parser = new StructuredFieldParser(stringReader);
051 try {
052 // From RFC2017 3.1
053 /*
054 * Extraction of the URL string from the URL-parameter is even simpler:
055 * The enclosing quotes and any linear whitespace are removed and the
056 * remaining material is the URL string.
057 * Read more: http://www.faqs.org/rfcs/rfc2017.html#ixzz0aufO9nRL
058 */
059 location = parser.parse().replaceAll("\\s", "");
060 } catch (ParseException ex) {
061 parseException = ex;
062 }
063 }
064 }
065
066 public String getLocation() {
067 if (!parsed) {
068 parse();
069 }
070 return location;
071 }
072
073 @Override
074 public org.apache.james.mime4j.dom.field.ParseException getParseException() {
075 return parseException;
076 }
077
078 public static final FieldParser<ContentLocationField> PARSER = new FieldParser<ContentLocationField>() {
079
080 public ContentLocationField parse(final Field rawField, final DecodeMonitor monitor) {
081 return new ContentLocationFieldImpl(rawField, monitor);
082 }
083
084 };
085
086 }
087