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    1   /*
    2    * Copyright 2001-2005 The Apache Software Foundation
    3    *
    4    * Licensed under the Apache License, Version 2.0 (the "License");
    5    * you may not use this file except in compliance with the License.
    6    * You may obtain a copy of the License at
    7    *
    8    *     http://www.apache.org/licenses/LICENSE-2.0
    9    *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  package examples.nntp;
    17
    18  import java.io.IOException;
    19  import java.io.PrintWriter;
    20
    21  import org.apache.commons.net.nntp.Article;
    22  import org.apache.commons.net.nntp.NNTPClient;
    23  import org.apache.commons.net.nntp.NewsgroupInfo;
    24
    25  import examples.PrintCommandListener;
    26
    27  /***
    28   * Simple class showing some of the extended commands (AUTH, XOVER, LIST ACTIVE)
    29   *
    30   * @author Rory Winston <rwinston@checkfree.com>
    31   */
    32  public class ExtendedNNTPOps {
    33
    34
    35  	NNTPClient client;
    36
    37  	public ExtendedNNTPOps() {
    38  		client = new NNTPClient();
    39  		client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out)));
    40  	}
    41
    42
    43  	public void demo(String host, String user, String password) {
    44  		try {
    45  			client.connect(host);
    46
    47  			// AUTHINFO USER/AUTHINFO PASS
    48  			boolean success = client.authenticate(user, password);
    49  			if (success) {
    50  				System.out.println("Authentication succeeded");
    51  			} else {
    52  				System.out.println("Authentication failed, error =" + client.getReplyString());
    53  			}
    54
    55  			// XOVER
    56  			NewsgroupInfo testGroup = new NewsgroupInfo();
    57  			client.selectNewsgroup("alt.test", testGroup);
    58  			int lowArticleNumber = testGroup.getFirstArticle();
    59  			int highArticleNumber = lowArticleNumber + 100;
    60  			Article[] articles = NNTPUtils.getArticleInfo(client, lowArticleNumber, highArticleNumber);
    61
    62  			for (int i = 0; i < articles.length; ++i) {
    63  				System.out.println(articles[i].getSubject());
    64  			}
    65
    66  			// LIST ACTIVE
    67  			NewsgroupInfo[] fanGroups = client.listNewsgroups("alt.fan.*");
    68  			for (int i = 0; i < fanGroups.length; ++i) {
    69  				System.out.println(fanGroups[i].getNewsgroup());
    70  			}
    71
    72  		} catch (IOException e) {
    73  			e.printStackTrace();
    74  		}
    75  	}
    76
    77  	public static void main(String[] args) {
    78  		ExtendedNNTPOps ops;
    79
    80  		if (args.length != 3) {
    81  			System.err.println("usage: ExtendedNNTPOps nntpserver username password");
    82  			System.exit(1);
    83  		}
    84
    85  		ops = new ExtendedNNTPOps();
    86  		ops.demo(args[0], args[1], args[2]);
    87  	}
    88
    89  }
    90
    91  /* Emacs configuration
    92   * Local variables:        **
    93   * mode:             java  **
    94   * c-basic-offset:   4     **
    95   * indent-tabs-mode: nil   **
    96   * End:                    **
    97   */