src/org/cacert/gigi/email/Sendmail.java

   1 package org.cacert.gigi.email;
   2
   3 import java.io.BufferedReader;
   4 import java.io.IOException;
   5 import java.io.InputStreamReader;
   6 import java.io.PrintWriter;
   7 import java.net.Socket;
   8 import java.text.SimpleDateFormat;
   9 import java.util.Base64;
  10 import java.util.Date;
  11 import java.util.Locale;
  12 import java.util.Properties;
  13 import java.util.regex.Pattern;
  14
  15 public class Sendmail extends EmailProvider {
  16
  17     protected Sendmail(Properties props) {}
  18
  19     private static final Pattern NON_ASCII = Pattern.compile("[^a-zA-Z0-9 .-\\[\\]!_@]");
  20
  21     @Override
  22     public void sendmail(String to, String subject, String message, String from, String replyto, String toname, String fromname, String errorsto, boolean extra) throws IOException {
  23
  24         String[] bits = from.split(",");
  25
  26         Socket smtp = new Socket("dogcraft.de", 25);
  27         PrintWriter out = new PrintWriter(smtp.getOutputStream());
  28         BufferedReader in = new BufferedReader(new InputStreamReader(smtp.getInputStream()));
  29         readResponse(in);
  30         out.print("HELO www.cacert.org\r\n");
  31         out.flush();
  32         readResponse(in);
  33         out.print("MAIL FROM:<returns@cacert.org>\r\n");
  34         out.flush();
  35         readResponse(in);
  36         bits = to.split(",");
  37         for (String user : bits) {
  38             out.print("RCPT TO:<" + user.trim() + ">\r\n");
  39             out.flush();
  40             readResponse(in);
  41         }
  42         out.print("DATA\r\n");
  43         out.flush();
  44         readResponse(in);
  45         out.print("X-Mailer: CAcert.org Website\r\n");
  46         // if (array_key_exists("REMOTE_ADDR", $_SERVER)) {
  47         // out.print("X-OriginatingIP: ".$_SERVER["REMOTE_ADDR"]."\r\n");
  48         // }
  49         // TODO
  50         SimpleDateFormat emailDate = new SimpleDateFormat("E, d MMM yyyy HH:mm:ss ZZZZ (z)", Locale.ENGLISH);
  51         out.print("Date: " + emailDate.format(new Date(System.currentTimeMillis())) + "\r\n");
  52         out.print("Sender: " + errorsto + "\r\n");
  53         out.print("Errors-To: " + errorsto + "\r\n");
  54         if (replyto != null) {
  55             out.print("Reply-To: " + replyto + "\r\n");
  56         } else {
  57             out.print("Reply-To: " + from + "\r\n");
  58         }
  59         out.print("From: " + from + "\r\n");
  60         out.print("To: " + to + "\r\n");
  61         if (NON_ASCII.matcher(subject).matches()) {
  62
  63             out.print("Subject: =?utf-8?B?" + Base64.getEncoder().encodeToString(subject.getBytes()) + "?=\r\n");
  64         } else {
  65             out.print("Subject: " + subject + "\r\n");
  66         }
  67         out.print("Mime-Version: 1.0\r\n");
  68         if ( !extra) {
  69             out.print("Content-Type: text/plain; charset=\"utf-8\"\r\n");
  70             out.print("Content-Transfer-Encoding: 8bit\r\n");
  71         } else {
  72             out.print("Content-Type: text/plain; charset=\"iso-8859-1\"\r\n");
  73             out.print("Content-Transfer-Encoding: quoted-printable\r\n");
  74             out.print("Content-Disposition: inline\r\n");
  75         }
  76         // out.print("Content-Transfer-Encoding: BASE64\r\n");
  77         out.print("\r\n");
  78         // out.print(chunk_split(base64_encode(recode("html..utf-8",
  79         // $message)))."\r\n.\r\n");
  80         message = message + "\r\n";
  81
  82         String sendM = message.replace("\r", "").replace("\n.\n", "\n").replace("\n.\n", "\n").replace("\n", "\r\n") + ".\r\n";
  83         out.print(sendM);
  84         out.flush();
  85         readResponse(in);
  86         out.print("QUIT\n");
  87         out.flush();
  88         readResponse(in);
  89         smtp.close();
  90     }
  91
  92     private static void readResponse(BufferedReader in) throws IOException {
  93         String line;
  94         while ((line = in.readLine()) != null && line.matches("\\d+-")) {
  95         }
  96
  97     }
  98
  99 }