| /* |
| * 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.tika.parser.mailcommons; |
| |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import org.apache.tika.metadata.Metadata; |
| import org.apache.tika.metadata.Property; |
| |
| public class MailUtil { |
| |
| private final static Pattern EMAIL = Pattern.compile("(?i)([^<@\\s]+@[^@> ]+)"); |
| |
| /** |
| * This tries to split a "from" or "to" value into a person field and an email field. |
| * This does not handle RFC encoded strings (e.g. "=?iso-8859-1?Q?H=E9roux_Louise?"), |
| * you must decode them first. |
| * |
| * @param string |
| * @param personProperty |
| * @param emailProperty |
| * @param metadata |
| */ |
| public static void setPersonAndEmail(String string, Property personProperty, |
| Property emailProperty, Metadata metadata) { |
| |
| StringBuffer sb = new StringBuffer(); |
| String email = extractEmail(string, sb); |
| String person = clean(sb.toString()); |
| if (person != null && person.length() > 0) { |
| metadata.set(personProperty, person); |
| } |
| if (email != null && email.length() > 0) { |
| metadata.set(emailProperty, email); |
| } |
| |
| } |
| |
| /** |
| * This tries to split a "from" or "to" value into a person field and an email field. |
| * This does not handle RFC encoded strings (e.g. "=?iso-8859-1?Q?H=E9roux_Louise?"), |
| * you must decode them first. |
| * |
| * @param string |
| * @param personProperty |
| * @param emailProperty |
| * @param metadata |
| */ |
| public static void addPersonAndEmail(String string, Property personProperty, |
| Property emailProperty, Metadata metadata) { |
| |
| StringBuffer sb = new StringBuffer(); |
| String email = extractEmail(string, sb); |
| String person = clean(sb.toString()); |
| |
| if (person != null && person.length() > 0) { |
| metadata.add(personProperty, person); |
| } |
| if (email != null && email.length() > 0) { |
| metadata.add(emailProperty, email); |
| } |
| |
| } |
| |
| private static String clean(String s) { |
| s = s.replaceAll("[<>\"]", " "); |
| s = s.trim(); |
| return s; |
| } |
| |
| private static String extractEmail(String string, StringBuffer sb) { |
| Matcher emailMatcher = EMAIL.matcher(string); |
| String email = ""; |
| //TODO: warn if more than one email is found? |
| while (emailMatcher.find()) { |
| emailMatcher.appendReplacement(sb, ""); |
| email = emailMatcher.group(1); |
| } |
| emailMatcher.appendTail(sb); |
| return email; |
| } |
| |
| /** |
| * If the chunk looks like it contains an email |
| * |
| * @param chunk to analyse |
| * @return {@code true} if chunk looks like it contains an email |
| */ |
| public static boolean containsEmail(String chunk) { |
| if (chunk == null) { |
| return false; |
| } |
| |
| if (EMAIL.matcher(chunk).find()) { |
| return true; |
| } |
| return false; |
| } |
| } |