Example usage for org.apache.commons.net.nntp NNTPClient NNTPClient

List of usage examples for org.apache.commons.net.nntp NNTPClient NNTPClient

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Introduction

In this page you can find the example usage for org.apache.commons.net.nntp NNTPClient NNTPClient.

Prototype

NNTPClient

Source Link

Usage

From source file:org.apache.common.net.examples.nntp.ListNewsgroups.java

public final static void main(String[] args) {
    if (args.length < 1) {
        System.err.println("Usage: newsgroups newsserver [pattern]");
        return;/*from   w w  w  .  j ava  2 s.c o m*/
    }

    NNTPClient client = new NNTPClient();
    String pattern = args.length >= 2 ? args[1] : "";

    try {
        client.connect(args[0]);

        int j = 0;
        try {
            for (String s : client.iterateNewsgroupListing(pattern)) {
                j++;
                System.out.println(s);
            }
        } catch (IOException e1) {
            e1.printStackTrace();
        }
        System.out.println(j);

        j = 0;
        for (NewsgroupInfo n : client.iterateNewsgroups(pattern)) {
            j++;
            System.out.println(n.getNewsgroup());
        }
        System.out.println(j);
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            if (client.isConnected()) {
                client.disconnect();
            }
        } catch (IOException e) {
            System.err.println("Error disconnecting from server.");
            e.printStackTrace();
            System.exit(1);
        }
    }

}

From source file:org.apache.common.net.examples.nntp.PostMessage.java

public final static void main(String[] args) {
    String from, subject, newsgroup, filename, server, organization;
    String references;/*  ww  w  . j  av  a 2 s. co m*/
    BufferedReader stdin;
    FileReader fileReader = null;
    SimpleNNTPHeader header;
    NNTPClient client;

    if (args.length < 1) {
        System.err.println("Usage: post newsserver");
        System.exit(1);
    }

    server = args[0];

    stdin = new BufferedReader(new InputStreamReader(System.in));

    try {
        System.out.print("From: ");
        System.out.flush();

        from = stdin.readLine();

        System.out.print("Subject: ");
        System.out.flush();

        subject = stdin.readLine();

        header = new SimpleNNTPHeader(from, subject);

        System.out.print("Newsgroup: ");
        System.out.flush();

        newsgroup = stdin.readLine();
        header.addNewsgroup(newsgroup);

        while (true) {
            System.out.print("Additional Newsgroup <Hit enter to end>: ");
            System.out.flush();

            // Of course you don't want to do this because readLine() may be null
            newsgroup = stdin.readLine().trim();

            if (newsgroup.length() == 0) {
                break;
            }

            header.addNewsgroup(newsgroup);
        }

        System.out.print("Organization: ");
        System.out.flush();

        organization = stdin.readLine();

        System.out.print("References: ");
        System.out.flush();

        references = stdin.readLine();

        if (organization != null && organization.length() > 0) {
            header.addHeaderField("Organization", organization);
        }

        if (references != null && references.length() > 0) {
            header.addHeaderField("References", references);
        }

        header.addHeaderField("ProcessExecutorHelper-Newsreader", "NetComponents");

        System.out.print("Filename: ");
        System.out.flush();

        filename = stdin.readLine();

        try {
            fileReader = new FileReader(filename);
        } catch (FileNotFoundException e) {
            System.err.println("File not found. " + e.getMessage());
            System.exit(1);
        }

        client = new NNTPClient();
        client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true));

        client.connect(server);

        if (!NNTPReply.isPositiveCompletion(client.getReplyCode())) {
            client.disconnect();
            System.err.println("NNTP server refused connection.");
            System.exit(1);
        }

        if (client.isAllowedToPost()) {
            Writer writer = client.postArticle();

            if (writer != null) {
                writer.write(header.toString());
                Util.copyReader(fileReader, writer);
                writer.close();
                client.completePendingCommand();
            }
        }

        if (fileReader != null) {
            fileReader.close();
        }

        client.logout();

        client.disconnect();
    } catch (IOException e) {
        e.printStackTrace();
        System.exit(1);
    }
}

From source file:org.apache.commons.net.examples.nntp.ArticleReader.java

public static void main(String[] args) throws SocketException, IOException {

    if (args.length != 2 && args.length != 3 && args.length != 5) {
        System.out.println(//from  w ww. j  ava  2  s. co m
                "Usage: MessageThreading <hostname> <groupname> [<article specifier> [<user> <password>]]");
        return;
    }

    String hostname = args[0];
    String newsgroup = args[1];
    // Article specifier can be numeric or Id in form <m.n.o.x@host>
    String articleSpec = args.length >= 3 ? args[2] : null;

    NNTPClient client = new NNTPClient();
    client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true));
    client.connect(hostname);

    if (args.length == 5) { // Optional auth
        String user = args[3];
        String password = args[4];
        if (!client.authenticate(user, password)) {
            System.out.println("Authentication failed for user " + user + "!");
            System.exit(1);
        }
    }

    NewsgroupInfo group = new NewsgroupInfo();
    client.selectNewsgroup(newsgroup, group);

    BufferedReader brHdr;
    String line;
    if (articleSpec != null) {
        brHdr = (BufferedReader) client.retrieveArticleHeader(articleSpec);
    } else {
        long articleNum = group.getLastArticleLong();
        brHdr = client.retrieveArticleHeader(articleNum);
    }
    if (brHdr != null) {
        while ((line = brHdr.readLine()) != null) {
            System.out.println(line);
        }
        brHdr.close();
    }
    BufferedReader brBody;
    if (articleSpec != null) {
        brBody = (BufferedReader) client.retrieveArticleBody(articleSpec);
    } else {
        long articleNum = group.getLastArticleLong();
        brBody = client.retrieveArticleBody(articleNum);
    }
    if (brBody != null) {
        while ((line = brBody.readLine()) != null) {
            System.out.println(line);
        }
        brBody.close();
    }
}

From source file:org.apache.commons.net.examples.nntp.PostMessage.java

public static void main(String[] args) {
    String from, subject, newsgroup, fileName, server, organization;
    String references;/*from ww  w  . ja v  a 2 s  .  c o  m*/
    BufferedReader stdin;
    FileReader fileReader = null;
    SimpleNNTPHeader header;
    NNTPClient client;

    if (args.length < 1) {
        System.err.println("Usage: post newsserver");
        System.exit(1);
    }

    server = args[0];

    stdin = new BufferedReader(new InputStreamReader(System.in));

    try {
        System.out.print("From: ");
        System.out.flush();

        from = stdin.readLine();

        System.out.print("Subject: ");
        System.out.flush();

        subject = stdin.readLine();

        header = new SimpleNNTPHeader(from, subject);

        System.out.print("Newsgroup: ");
        System.out.flush();

        newsgroup = stdin.readLine();
        header.addNewsgroup(newsgroup);

        while (true) {
            System.out.print("Additional Newsgroup <Hit enter to end>: ");
            System.out.flush();

            newsgroup = stdin.readLine();
            if (newsgroup == null) {
                break;
            }

            newsgroup = newsgroup.trim();

            if (newsgroup.length() == 0) {
                break;
            }

            header.addNewsgroup(newsgroup);
        }

        System.out.print("Organization: ");
        System.out.flush();

        organization = stdin.readLine();

        System.out.print("References: ");
        System.out.flush();

        references = stdin.readLine();

        if (organization != null && organization.length() > 0) {
            header.addHeaderField("Organization", organization);
        }

        if (references != null && references.length() > 0) {
            header.addHeaderField("References", references);
        }

        header.addHeaderField("X-Newsreader", "NetComponents");

        System.out.print("Filename: ");
        System.out.flush();

        fileName = stdin.readLine();

        try {
            fileReader = new FileReader(fileName);
        } catch (FileNotFoundException e) {
            System.err.println("File not found. " + e.getMessage());
            System.exit(1);
        }

        client = new NNTPClient();
        client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true));

        client.connect(server);

        if (!NNTPReply.isPositiveCompletion(client.getReplyCode())) {
            client.disconnect();
            System.err.println("NNTP server refused connection.");
            System.exit(1);
        }

        if (client.isAllowedToPost()) {
            Writer writer = client.postArticle();

            if (writer != null) {
                writer.write(header.toString());
                Util.copyReader(fileReader, writer);
                writer.close();
                client.completePendingCommand();
            }
        }

        if (fileReader != null) {
            fileReader.close();
        }

        client.logout();

        client.disconnect();
    } catch (IOException e) {
        e.printStackTrace();
        System.exit(1);
    }
}

From source file:org.ossmeter.platform.communicationchannel.nntp.local.NntpUtil.java

public static NNTPClient connectToNntpServer(NntpNewsGroup newsgroup) {

    NNTPClient client = new NNTPClient();
    client.setDefaultPort(newsgroup.getPort());
    String serverUrl = newsgroup.getUrl().substring(0, newsgroup.getUrl().lastIndexOf("/"));
    try {/* ww w.ja  va 2 s .c o m*/
        client.connect(serverUrl);
        if (newsgroup.getAuthenticationRequired()) {
            client.authenticate(newsgroup.getUsername(), newsgroup.getPassword());
        }
    } catch (SocketException e) {
        // TODO Auto-generated catch block
        System.err.println("SocketException while connecting to NNTP server: '" + newsgroup.getUrl() + "': "
                + e.getMessage());
        //           System.exit(1);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        System.err.println(
                "IOException while connecting to NNTP server: '" + newsgroup.getUrl() + "': " + e.getMessage());
        //           System.exit(1);
    }
    return client;
}

From source file:org.ossmeter.platform.communicationchannel.nntp.NntpUtil.java

public static NNTPClient connectToNntpServer(NntpNewsGroup newsgroup) {

    NNTPClient client = new NNTPClient();
    client.setDefaultPort(newsgroup.getPort());
    String serverUrl = newsgroup.getUrl();

    if (serverUrl.endsWith("/")) {
        serverUrl = newsgroup.getUrl().substring(0, newsgroup.getUrl().lastIndexOf("/"));
    }/*  ww w .  java2s  .com*/

    try {
        client.connect(serverUrl);
        if (newsgroup.getAuthenticationRequired()) {
            client.authenticate(newsgroup.getUsername(), newsgroup.getPassword());
        }
    } catch (SocketException e) {
        // TODO Auto-generated catch block
        System.err.println("SocketException while connecting to NNTP server: '" + newsgroup.getUrl() + "': "
                + e.getMessage());
        e.printStackTrace();
        //           System.exit(1);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        System.err.println(
                "IOException while connecting to NNTP server: '" + newsgroup.getUrl() + "': " + e.getMessage());
        e.printStackTrace();
        //           System.exit(1);
    }
    return client;
}

From source file:org.rssowl.contrib.internal.nntp.NewsGroupHandler.java

public Pair<IFeed, IConditionalGet> reload(URI link, IProgressMonitor monitor, Map<Object, Object> properties)
        throws CoreException {
    IModelFactory factory = Owl.getModelFactory();

    /* Create a new empty feed from the existing one */
    IFeed feed = factory.createFeed(null, link);

    /* Retrieve last article pointer */
    Integer lastArticleId = getLastArticleId(properties);

    /* Create a new HttpClient */
    NNTPClient client = new NNTPClient();

    try {/*from   w ww . j a v a2  s.  com*/

        /* Support early cancellation */
        if (monitor.isCanceled())
            return null;

        /* Connect to Server */
        if (link.getPort() != -1)
            client.connect(link.getHost(), link.getPort());
        else
            client.connect(link.getHost());

        /* Set Timeout */
        setTimeout(client, properties);

        /* Support early cancellation */
        if (monitor.isCanceled())
            return null;

        /* Authentication if provided */
        setupAuthentication(link, client);

        /* Check Authentication Required */
        checkAuthenticationRequired(client);

        /* Support early cancellation */
        if (monitor.isCanceled())
            return null;

        /* Enable Reader Mode */
        client.sendCommand(MODE_READER);

        /* Support early cancellation */
        if (monitor.isCanceled())
            return null;

        /* Select Newsgroup */
        String newsgroup = link.getPath().replace("/", "");
        NewsgroupInfo groupInfo = new NewsgroupInfo();
        boolean selected = client.selectNewsgroup(newsgroup, groupInfo);

        /* Check Authentication Required */
        checkAuthenticationRequired(client);

        /* Check Newsgroup Selected */
        if (!selected)
            throwConnectionException("Unable to select Newsgroup", client);

        /* Support early cancellation */
        if (monitor.isCanceled())
            return null;

        /* First reload: Retrieve an initial amount of News */
        if (lastArticleId == null) {

            /* Set Article Pointer to last Article */
            int status = client.stat(groupInfo.getLastArticle());
            if (status != STATUS_ARTICLE_POINTER_OK)
                throwConnectionException("Unable to retrieve any News", client);

            /* Retrieve initial news */
            for (int i = 0; i < INITIAL_NEWS && !monitor.isCanceled(); i++) {
                createNews(client.retrieveArticle(), feed, monitor);

                /* Goto previous news if provided */
                int result = client.last();
                if (result != STATUS_ARTICLE_POINTER_OK)
                    break;
            }
        }

        /* Subsequent reload: Set pointer to last retrieved News */
        else {

            /* Set Article Pointer to last retrieved News */
            int status = client.stat(lastArticleId);
            if (status != STATUS_ARTICLE_POINTER_OK)
                throwConnectionException("Unable to retrieve any News", client);

            /* Retrieve all the following News */
            while (client.next() == STATUS_ARTICLE_POINTER_OK && !monitor.isCanceled())
                createNews(client.retrieveArticle(), feed, monitor);
        }

        /* Remember last article's ID */
        lastArticleId = groupInfo.getLastArticle();
    }

    /* Wrap Exceptions */
    catch (IOException e) {
        throw new ConnectionException(Activator.createErrorStatus(e.getMessage(), e));
    }

    /* Disconnect */
    finally {
        try {
            if (client.isConnected())
                client.disconnect();
        } catch (IOException e) {
            throw new ConnectionException(Activator.createErrorStatus(e.getMessage(), e));
        }
    }

    /* Create Conditional Get Object */
    IConditionalGet conditionalGet = null;
    if (lastArticleId != null)
        conditionalGet = factory.createConditionalGet(null, link, String.valueOf(lastArticleId));

    return Pair.create(feed, conditionalGet);
}