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From s...@apache.org
Subject svn commit: r1788535 - in /commons/proper/net/trunk/src: changes/changes.xml main/java/examples/mail/POP3ExportMbox.java main/resources/examples/examples.properties
Date Fri, 24 Mar 2017 20:00:09 GMT
Author: sebb
Date: Fri Mar 24 20:00:09 2017
New Revision: 1788535

URL: http://svn.apache.org/viewvc?rev=1788535&view=rev
Log:
Add POP3ExportMbox example code

Added:
    commons/proper/net/trunk/src/main/java/examples/mail/POP3ExportMbox.java   (with props)
Modified:
    commons/proper/net/trunk/src/changes/changes.xml
    commons/proper/net/trunk/src/main/resources/examples/examples.properties

Modified: commons/proper/net/trunk/src/changes/changes.xml
URL: http://svn.apache.org/viewvc/commons/proper/net/trunk/src/changes/changes.xml?rev=1788535&r1=1788534&r2=1788535&view=diff
==============================================================================
--- commons/proper/net/trunk/src/changes/changes.xml [utf-8] (original)
+++ commons/proper/net/trunk/src/changes/changes.xml [utf-8] Fri Mar 24 20:00:09 2017
@@ -71,6 +71,9 @@ This is mainly a bug-fix release. See fu
  However it is not source compatible with releases before 3.4, as some methods were added
to the interface NtpV3Packet in 3.4
         
 ">
+            <action type="add" dev="sebb">
+            Add POP3ExportMbox example code
+            </action>
             <action issue="NET-633" type="update" dev="sebb" due-to="n0rm1e">
             Add XOAUTH2 to IMAP and SMTP
             </action>

Added: commons/proper/net/trunk/src/main/java/examples/mail/POP3ExportMbox.java
URL: http://svn.apache.org/viewvc/commons/proper/net/trunk/src/main/java/examples/mail/POP3ExportMbox.java?rev=1788535&view=auto
==============================================================================
--- commons/proper/net/trunk/src/main/java/examples/mail/POP3ExportMbox.java (added)
+++ commons/proper/net/trunk/src/main/java/examples/mail/POP3ExportMbox.java Fri Mar 24 20:00:09
2017
@@ -0,0 +1,188 @@
+/*
+ * 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 examples.mail;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.nio.charset.Charset;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.apache.commons.net.pop3.POP3Client;
+import org.apache.commons.net.pop3.POP3MessageInfo;
+import org.apache.commons.net.pop3.POP3SClient;
+
+/**
+ * This is an example program demonstrating how to use the POP3[S]Client class.
+ * This program connects to a POP3[S] server and writes the messages
+ * to an mbox file.
+ * <p>
+ * The code currently assumes that POP3Client decodes the POP3 data as iso-8859-1.
+ * The POP3 standard only allows for ASCII so in theory iso-8859-1 should be OK.
+ * However it appears that actual POP3 implementations may return 8bit data that is
+ * outside the ASCII range; this may result in loss of data when the mailbox is created.
+ * <p>
+ * See main() method for usage details
+ */
+public final class POP3ExportMbox
+{
+
+    private static final Pattern PATFROM = Pattern.compile(">*From "); // unescaped From_
+
+    public static void main(String[] args)
+    {
+        int argIdx;
+        String file = null;
+        for(argIdx = 0; argIdx < args.length; argIdx++) {
+            if (args[argIdx].equals("-F")) {
+                file = args[++argIdx];
+            } else {
+                break;
+            }
+        }
+
+        final int argCount = args.length - argIdx;
+        if (argCount < 3)
+        {
+            System.err.println(
+                "Usage: POP3Mail [-F file] <server[:port]> <username> <password|-|*|VARNAME>
[TLS [true=implicit]]");
+            System.exit(1);
+        }
+
+        String arg0[] = args[argIdx++].split(":");
+        String server=arg0[0];
+        String username = args[argIdx++];
+        String password = args[argIdx++];
+        // prompt for the password if necessary
+        try {
+            password = Utils.getPassword(username, password);
+        } catch (IOException e1) {
+            System.err.println("Could not retrieve password: " + e1.getMessage());
+            return;
+        }
+
+        String proto = argCount > 3 ? args[argIdx++] : null;
+        boolean implicit = argCount > 4 ? Boolean.parseBoolean(args[argIdx++]) : false;
+
+        POP3Client pop3;
+
+        if (proto != null) {
+            System.out.println("Using secure protocol: "+proto);
+            pop3 = new POP3SClient(proto, implicit);
+        } else {
+            pop3 = new POP3Client();
+        }
+
+        int port;
+        if (arg0.length == 2) {
+            port = Integer.parseInt(arg0[1]);
+        } else {
+            port = pop3.getDefaultPort();
+        }
+        System.out.println("Connecting to server "+server+" on "+port);
+
+        // We want to timeout if a response takes longer than 60 seconds
+        pop3.setDefaultTimeout(60000);
+
+        try
+        {
+            pop3.connect(server);
+        }
+        catch (IOException e)
+        {
+            System.err.println("Could not connect to server.");
+            e.printStackTrace();
+            return;
+        }
+
+        try
+        {
+            if (!pop3.login(username, password))
+            {
+                System.err.println("Could not login to server.  Check password.");
+                pop3.disconnect();
+                return;
+            }
+
+            POP3MessageInfo status = pop3.status();
+            if (status == null) {
+                System.err.println("Could not retrieve status.");
+                pop3.logout();
+                pop3.disconnect();
+                return;
+            }
+
+            System.out.println("Status: " + status);
+            int count = status.number;
+            if (file != null) {
+                System.out.println("Getting messages: " + count);
+                File mbox = new File(file);
+                System.out.println("Writing: " + mbox);
+                // Currently POP3Client uses iso-8859-1
+                OutputStreamWriter fw = new OutputStreamWriter(new FileOutputStream(mbox),Charset.forName("iso-8859-1"));
+                for (int i = 1; i <= count; i++) {
+                    writeMbox(pop3, fw, i);
+                }
+                fw.close();
+            }
+
+            pop3.logout();
+            pop3.disconnect();
+        }
+        catch (IOException e)
+        {
+            e.printStackTrace();
+            return;
+        }
+    }
+
+    private static void writeMbox(POP3Client pop3, OutputStreamWriter fw, int i) throws IOException
{
+        final SimpleDateFormat DATE_FORMAT // for mbox From_ lines
+        = new SimpleDateFormat("EEE MMM dd HH:mm:ss YYYY");
+        String replyTo = "MAILER-DAEMON"; // default
+        Date received = new Date();
+        BufferedReader r = (BufferedReader) pop3.retrieveMessage(i);
+        fw.append("From ");
+        fw.append(replyTo);
+        fw.append(' ');
+        fw.append(DATE_FORMAT.format(received));
+        fw.append("\n");
+        String line;
+        while ((line = r.readLine()) != null)
+        {
+            if (startsWith(line, PATFROM)) {
+                fw.write(">");
+            }
+            fw.write(line);
+            fw.write("\n");
+        }
+        fw.write("\n");
+        r.close();
+    }
+
+    private static boolean startsWith(String input, Pattern pat) {
+        Matcher m = pat.matcher(input);
+        return m.lookingAt();
+    }
+}
+

Propchange: commons/proper/net/trunk/src/main/java/examples/mail/POP3ExportMbox.java
------------------------------------------------------------------------------
    svn:eol-style = native

Modified: commons/proper/net/trunk/src/main/resources/examples/examples.properties
URL: http://svn.apache.org/viewvc/commons/proper/net/trunk/src/main/resources/examples/examples.properties?rev=1788535&r1=1788534&r2=1788535&view=diff
==============================================================================
--- commons/proper/net/trunk/src/main/resources/examples/examples.properties (original)
+++ commons/proper/net/trunk/src/main/resources/examples/examples.properties Fri Mar 24 20:00:09
2017
@@ -28,6 +28,7 @@ TFTPExample               examples/ftp/T
 IMAPExportMbox            examples/mail/IMAPExportMbox
 IMAPImportMbox            examples/mail/IMAPImportMbox
 IMAPMail                  examples/mail/IMAPMail
+POP3ExportMbox            examples/mail/POP3ExportMbox
 POP3Mail                  examples/mail/POP3Mail
 SMTPMail                  examples/mail/SMTPMail
 ArticleReader             examples/nntp/ArticleReader



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