DZone Snippets: mail code

Optimizing Mac OS X Mail.app

jeffreybarke (Jeffrey Barke) — Sat, 02 Aug 2008 02:05:01 GMT

From Forever For Now:

Mail stores a so-called Envelope Index which contains cross references between message subjects, contents and other interesting aspects. Over time, this index becomes less and less efficient and slows down Mail.

The following action performed in the Terminal will clean up Mail's internal database, saving disk space and speeding up the application.

* Quit Mail from the menu or using Apple + Q and wait until the black arrow disappears from Mail's Dock icon.
* Open up Terminal using Spotlight via Alt + Space or start it from the Applications/Utilities folder.
* Type or copy the following line into the Terminal window:



sqlite3 ~/Library/Mail/Envelope\ Index vacuum;

Retrieve your Gmail messages as an XML feed

jrobertson (James Robertson) — Sun, 03 Feb 2008 16:29:06 GMT

This Ruby example shows how to retrieve your most recent email as an atom XML feed from the Google Apps website.



require 'rubygems'

require 'httpclient'



url = "https://mail.google.com/a/yourwebsite.com/feed/atom"

client = HTTPClient.new

client.debug_dev = STDOUT if $DEBUG

client.set_auth(url, 'yourname@yourwebsite.com', 'yourpassword')

resp = client.get(url)

Note: You might require to gem install httpclient.

Using POP3 to Retrieve Email for Rails App

timmorgan (Tim Morgan) — Tue, 26 Jun 2007 17:40:30 GMT

Put this in a file called "inbox" in the scripts/ directory of your Rails app. change the host, username, and password to match.

Set up a cron job to run this script every so often (frequency depends on your needs).



#!/usr/bin/env ruby



require 'net/pop'

require File.dirname(__FILE__) + '/../config/environment'



logger = RAILS_DEFAULT_LOGGER



logger.info "Running Mail Importer..." 

Net::POP3.start("localhost", nil, "username", "password") do |pop|

  if pop.mails.empty?

    logger.info "NO MAIL" 

  else

    pop.mails.each do |email|

      begin

        logger.info "receiving mail..." 

        Notifier.receive(email.pop)

        email.delete

      rescue Exception => e

        logger.error "Error receiving email at " + Time.now.to_s + "::: " + e.message

      end

    end

  end

end

logger.info "Finished Mail Importer."

Ultra-simplistic Ruby SMTP server

peter (Peter Cooperx) — Sun, 29 Apr 2007 05:52:52 GMT

You'll know if you need this, otherwise steer clear ;-)

require 'gserver'



class SMTPServer < GServer

  def serve(io)

    @data_mode = false

    puts "Connected"

    io.print "220 hello\r\n"

    loop do

      if IO.select([io], nil, nil, 0.1)

	      data = io.readpartial(4096)

	      puts ">>" + data

	      ok, op = process_line(data)

	      break unless ok

	      io.print op

      end

      break if io.closed?

    end

    io.print "221 bye\r\n"

    io.close

  end



  def process_line(line)

    if (line =~ /^(HELO|EHLO)/)

      return true, "220 and..?\r\n"

    end

    if (line =~ /^QUIT/)

      return false, "bye\r\n"

    end

    if (line =~ /^MAIL FROM\:/)

      return true, "220 OK\r\n"

    end

    if (line =~ /^RCPT TO\:/)

      return true, "220 OK\r\n"

    end

    if (line =~ /^DATA/)

      @data_mode = true

      return true, "354 Enter message, ending with \".\" on a line by itself\r\n"

    end

    if (@data_mode) && (line.chomp =~ /^.$/)

      @data_mode = false

      return true, "220 OK\r\n"

    end

    if @data_mode

      puts line 

      return true, ""

    else

      return true, "500 ERROR\r\n"

    end

  end

end



a = SMTPServer.new(1234)

a.start

a.join

Authenticate with SMTP server before sending email

mikehale (Michael Hale) — Fri, 19 Jan 2007 00:55:15 GMT

For more info see: http://java.sun.com/products/javamail/javadocs/com/sun/mail/smtp/package-summary.html

You need activation.jar, smtp.jar, and mailapi.jar in your classpath for this to work.



import java.util.Properties;



import javax.mail.Message;

import javax.mail.MessagingException;

import javax.mail.PasswordAuthentication;

import javax.mail.Session;

import javax.mail.Transport;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeMessage;

import javax.mail.internet.MimeMessage.RecipientType;



public class MailWithPasswordAuthentication {

	public static void main(String[] args) throws MessagingException {

		new MailWithPasswordAuthentication().run();

	}



	private void run() throws MessagingException {

		Message message = new MimeMessage(getSession());



		message.addRecipient(RecipientType.TO, new InternetAddress("to@example.com"));

		message.addFrom(new InternetAddress[] { new InternetAddress("from@example.com") });



		message.setSubject("the subject");

		message.setContent("the body", "text/plain");



		Transport.send(message);

	}



	private Session getSession() {

		Authenticator authenticator = new Authenticator();



		Properties properties = new Properties();

		properties.setProperty("mail.smtp.submitter", authenticator.getPasswordAuthentication().getUserName());

		properties.setProperty("mail.smtp.auth", "true");



		properties.setProperty("mail.smtp.host", "mail.example.com");

		properties.setProperty("mail.smtp.port", "25");



		return Session.getInstance(properties, authenticator);

	}



	private class Authenticator extends javax.mail.Authenticator {

		private PasswordAuthentication authentication;



		public Authenticator() {

			String username = "auth-user";

			String password = "auth-password";

			authentication = new PasswordAuthentication(username, password);

		}



		protected PasswordAuthentication getPasswordAuthentication() {

			return authentication;

		}

	}

}

èŽ·å?–Exchangeæœªè¯»é‚®ä»¶æ•°

mornlee (mornlee) — Sun, 15 Oct 2006 07:10:59 GMT

// description of your code here



private int GetUnReadMailCount()

{

string url=â€œhttp://mail.felixwoo.com/exchange/â€?; //æŒ‡å®šExchangeæœ?åŠ¡å™¨åœ°å?€ 

System.Net.HttpWebRequest Request;

System.Net.WebResponse Response;

System.Net.CredentialCache MyCredentialCache;

string strUserName = â€œwufâ€?; //æŒ‡å®šç™»å½•çš„ç”¨æˆ·å??

string strRootURI = url+strUserName ; //å¾—åˆ°è¦?è®¿é—®é‚®ç®±çš„WebDAVåœ°å?€

string strPassword = â€œ123456â€?; //æŒ‡å®šè¯¥ç”¨æˆ·çš„å¯†ç ?

string strDomain = â€œfelixwoo.comâ€?; //æŒ‡å®šåŸŸå??

string strQuery ="";

byte[] bytes = null;

System.IO.Stream RequestStream = null;

System.IO.Stream ResponseStream = null;

XmlDocument ResponseXmlDoc = null;

XmlNodeList HrefNodes= null;

XmlNodeList SizeNodes= null;

int count=0;

try

{

  // ç”¨SQLæŸ¥è¯¢WebDAVè¿”å›žç»“æžœä¸çš„unreadcountèŠ‚ç‚¹.

  strQuery = ""

   + "SELECT \"DAV:displayname\",\"urn:schemas:httpmail:unreadcount\" FROM \"" + strRootURI + "\""

   + "";



  // åˆ›å»ºæ–°çš„CredentialCacheå¯¹è±¡ï¼Œæž„å»ºèº«ä»½å‡æ?®

  MyCredentialCache = new System.Net.CredentialCache();

  MyCredentialCache.Add( new System.Uri(strRootURI),

   "NTLM",

   new System.Net.NetworkCredential(strUserName, strPassword, strDomain)

   );



  // Create the HttpWebRequest object.

  Request = (System.Net.HttpWebRequest)HttpWebRequest.Create(strRootURI);



  // æŒ‡å®šHttpWebRequestçš„èº«ä»½å‡æ?®ï¼Œæ¤å¤„ä¸ºå…³é”®æ‰€åœ¨ã€‚å¦‚æžœä½¿ç”¨ä¹‹å‰?

  // åˆ›å»ºçš„MyCredentialCacheï¼Œåˆ™è¿™ä¸ªèº«ä»½å‡æ?®æ˜¯å?¯ä»¥ä»ŽWebæœ?åŠ¡å™¨ä¼ é€’

  // åˆ°Exchangeæœ?åŠ¡å™¨çš„ï¼Œä½†æ˜¯è¿™æ ·å¸¦æ?¥çš„é—®é¢˜ä¹Ÿå¾ˆæ˜Žæ˜¾ï¼Œå°±æ˜¯ä¸?èƒ½å¤Ÿè‡ª

  // åŠ¨èŽ·å?–å½“å‰?ç™»å½•åˆ°åŸŸçš„ç”¨æˆ·çš„èº«ä»½ã€‚å?³ä¾¿å·²ç»?æˆ?åŠŸç™»å½•åˆ°åŸŸï¼Œé‚£ä¹Ÿå?ª

  // èƒ½é€šè¿‡formå†?æ¬¡è¾“å…¥ç”¨æˆ·å??å¯†ç ?ã€‚å› æ¤ï¼Œæˆ‘åœ¨è¿™é‡Œç”¨çš„æ˜¯

  // Request.Credentials = CredentialCache.DefaultCredentialsï¼Œ

  // è¿™æ ·ä¾¿å?¯ä»¥èŽ·å¾—å½“å‰?ç”¨æˆ·çš„å‡æ?®ï¼Œä½†æ˜¯è¿™æ ·å¸¦æ?¥çš„é—®é¢˜ä¾¿æ˜¯ä¸Šé?¢æ??åˆ°çš„

  // èº«ä»½å‡æ?®æ— æ³•ä¼ é€’çš„é—®é¢˜ï¼Œè§£å†³æ–¹æ³•è¯·å…³æ³¨ä¸‹ç¯‡æ–‡ç« ã€‚

  Request.Credentials = MyCredentialCache;



  // æŒ‡å®šWebDAVçš„SEARCHæ–¹æ³•

  Request.Method = "SEARCH";



  // Encode the body using UTF-8.

  bytes = Encoding.UTF8.GetBytes((string)strQuery);



  // Set the content header length. This must be

  // done before writing data to the request stream.

  Request.ContentLength = bytes.Length;



  // Get a reference to the request stream.

  RequestStream = Request.GetRequestStream();



  // Write the SQL query to the request stream.

  RequestStream.Write(bytes, 0, bytes.Length);



  // Close the Stream object to release the connection

  // for further use.

  RequestStream.Close();



  // Set the content type header.

  Request.ContentType = "text/xml";



  // Send the SEARCH method request and get the

  // response from the server.

  Response = (HttpWebResponse)Request.GetResponse();



  // Get the XML response stream.

  ResponseStream = Response.GetResponseStream();



  // åˆ›å»ºXmlDocumentå¯¹è±¡ï¼Œå¹¶èŽ·å?–æ”¶ä»¶ç®±çš„unreadcountèŠ‚ç‚¹çš„å€¼

  ResponseXmlDoc = new XmlDocument();

  ResponseXmlDoc.Load(ResponseStream);

  HrefNodes = ResponseXmlDoc.GetElementsByTagName("a:displayname");

  SizeNodes = ResponseXmlDoc.GetElementsByTagName("d:unreadcount");

  for(int i=0;i  {

   if(HrefNodes[i].InnerText=="æ”¶ä»¶ç®±")

    count=int.Parse(SizeNodes[i].InnerText);

  }

  ResponseStream.Close();

  Response.Close();

}

catch(Exception)

{

  // Catch any exceptions. Any error codes from the SEARCH

  // method request on the server will be caught here, also.

  return -1;

}

return count;

}

javasrcritpt email to avoid spam

ovhaag (Oliver Haag) — Wed, 27 Sep 2006 03:57:01 GMT

// email is written with javascript to hide it aganst scanning.
// if javascript is off, the email is obfuscated

Simple "Send Email from Ruby" Method

peter (Peter Cooperx) — Fri, 04 Aug 2006 03:14:24 GMT

By Ian Purton and found at http://jiploo.com/blog/simple-email-send-function-in-ruby/



def send_email(from, from_alias, to, to_alias, subject, message)

	msg = <From: #{from_alias} <#{from}>

To: #{to_alias} <#{to}>

Subject: #{subject}

	

#{message}

END_OF_MESSAGE

	

	Net::SMTP.start('localhost') do |smtp|

		smtp.send_message msg, from, to

	end

end

ezmlm command line reference

zdw (Zack Williams) — Tue, 13 Jun 2006 01:59:47 GMT

List all email addresses in list



ezmlm-list /path/to/mldir

Add an email address to the list



ezmlm-sub /path/to/mldir foo@bar.com

Remove an email address from the list



ezmlm-unsub /path/to/mldir foo@bar.com

Sending html mail with embedded image

korakot (Korakot Chaovavanich) — Fri, 10 Mar 2006 10:12:55 GMT

See detail in this recipe.
The code below show the key parts of embedding an image.



# require the new email package

from email.MIMEMultipart import MIMEMultipart

from email.MIMEText import MIMEText

from email.MIMEImage import MIMEImage



...

...

msgRoot = MIMEMultipart('related')

...

...



# Assumes the image is in current directory

fp = open('test.jpg', 'rb')

msgImage = MIMEImage(fp.read())

fp.close()



# Define the image's ID as referenced above

msgImage.add_header('Content-ID', '')

msgRoot.attach(msgImage)



...

smtp.sendmail(strFrom, strTo, msgRoot.as_string())

...