001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018 package examples.nntp; 019 020 import java.io.IOException; 021 import java.io.PrintWriter; 022 import java.util.List; 023 024 import org.apache.commons.net.PrintCommandListener; 025 import org.apache.commons.net.nntp.Article; 026 import org.apache.commons.net.nntp.NNTPClient; 027 import org.apache.commons.net.nntp.NewsgroupInfo; 028 029 030 /** 031 * Simple class showing some of the extended commands (AUTH, XOVER, LIST ACTIVE) 032 * 033 * @author Rory Winston <rwinston@apache.org> 034 */ 035 public class ExtendedNNTPOps { 036 037 038 NNTPClient client; 039 040 public ExtendedNNTPOps() { 041 client = new NNTPClient(); 042 client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out))); 043 } 044 045 046 public void demo(String host, String user, String password) { 047 try { 048 client.connect(host); 049 050 // AUTHINFO USER/AUTHINFO PASS 051 boolean success = client.authenticate(user, password); 052 if (success) { 053 System.out.println("Authentication succeeded"); 054 } else { 055 System.out.println("Authentication failed, error =" + client.getReplyString()); 056 } 057 058 // XOVER 059 NewsgroupInfo testGroup = new NewsgroupInfo(); 060 client.selectNewsgroup("alt.test", testGroup); 061 long lowArticleNumber = testGroup.getFirstArticle(); 062 long highArticleNumber = lowArticleNumber + 100; 063 List<Article> articles = NNTPUtils.getArticleInfo(client, lowArticleNumber, highArticleNumber); 064 065 for (Article article : articles) { 066 System.out.println(article.getSubject()); 067 } 068 069 // LIST ACTIVE 070 NewsgroupInfo[] fanGroups = client.listNewsgroups("alt.fan.*"); 071 for (int i = 0; i < fanGroups.length; ++i) { 072 System.out.println(fanGroups[i].getNewsgroup()); 073 } 074 075 } catch (IOException e) { 076 e.printStackTrace(); 077 } 078 } 079 080 public static void main(String[] args) { 081 ExtendedNNTPOps ops; 082 083 if (args.length != 3) { 084 System.err.println("usage: ExtendedNNTPOps nntpserver username password"); 085 System.exit(1); 086 } 087 088 ops = new ExtendedNNTPOps(); 089 ops.demo(args[0], args[1], args[2]); 090 } 091 092 } 093 094 /* Emacs configuration 095 * Local variables: ** 096 * mode: java ** 097 * c-basic-offset: 4 ** 098 * indent-tabs-mode: nil ** 099 * End: ** 100 */