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.regex.Pattern;
  13
  14 class Sendmail {
  15         private Sendmail() {
  16         }
  17         private static final Pattern NON_ASCII = Pattern
  18                         .compile("[^a-zA-Z0-9 .-\\[\\]!_@]");
  19
  20         public static void sendmail(String to, String subject, String message,
  21                         String from, String replyto, String toname, String fromname,
  22                         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(
  29                                 smtp.getInputStream()));
  30                 readResponse(in);
  31                 out.print("HELO www.cacert.org\r\n");
  32                 out.flush();
  33                 readResponse(in);
  34                 out.print("MAIL FROM:<returns@cacert.org>\r\n");
  35                 out.flush();
  36                 readResponse(in);
  37                 bits = to.split(",");
  38                 for (String user : bits) {
  39                         out.print("RCPT TO:<" + user.trim() + ">\r\n");
  40                         out.flush();
  41                         readResponse(in);
  42                 }
  43                 out.print("DATA\r\n");
  44                 out.flush();
  45                 readResponse(in);
  46                 out.print("X-Mailer: CAcert.org Website\r\n");
  47                 // if (array_key_exists("REMOTE_ADDR", $_SERVER)) {
  48                 // out.print("X-OriginatingIP: ".$_SERVER["REMOTE_ADDR"]."\r\n");
  49                 // }
  50                 // TODO
  51                 SimpleDateFormat emailDate = new SimpleDateFormat(
  52                                 "E, d MMM yyyy HH:mm:ss ZZZZ (z)", Locale.ENGLISH);
  53                 out.print("Date: "
  54                                 + emailDate.format(new Date(System.currentTimeMillis()))
  55                                 + "\r\n");
  56                 out.print("Sender: " + errorsto + "\r\n");
  57                 out.print("Errors-To: " + errorsto + "\r\n");
  58                 if (replyto != null) {
  59                         out.print("Reply-To: " + replyto + "\r\n");
  60                 } else {
  61                         out.print("Reply-To: " + from + "\r\n");
  62                 }
  63                 out.print("From: " + from + "\r\n");
  64                 out.print("To: " + to + "\r\n");
  65                 if (NON_ASCII.matcher(subject).matches()) {
  66
  67                         out.print("Subject: =?utf-8?B?"
  68                                         + Base64.getEncoder().encodeToString(subject.getBytes())
  69                                         + "?=\r\n");
  70                 } else {
  71                         out.print("Subject: " + subject + "\r\n");
  72                 }
  73                 out.print("Mime-Version: 1.0\r\n");
  74                 if (!extra) {
  75                         out.print("Content-Type: text/plain; charset=\"utf-8\"\r\n");
  76                         out.print("Content-Transfer-Encoding: 8bit\r\n");
  77                 } else {
  78                         out.print("Content-Type: text/plain; charset=\"iso-8859-1\"\r\n");
  79                         out.print("Content-Transfer-Encoding: quoted-printable\r\n");
  80                         out.print("Content-Disposition: inline\r\n");
  81                 }
  82                 // out.print("Content-Transfer-Encoding: BASE64\r\n");
  83                 out.print("\r\n");
  84                 // out.print(chunk_split(base64_encode(recode("html..utf-8",
  85                 // $message)))."\r\n.\r\n");
  86                 message = message + "\r\n";
  87
  88                 String sendM = message.replace("\r", "").replace("\n.\n", "\n")
  89                                 .replace("\n.\n", "\n").replace("\n", "\r\n")
  90                                 + ".\r\n";
  91                 out.print(sendM);
  92                 out.flush();
  93                 readResponse(in);
  94                 out.print("QUIT\n");
  95                 out.flush();
  96                 readResponse(in);
  97                 smtp.close();
  98         }
  99         private static void readResponse(BufferedReader in) throws IOException {
 100                 String line;
 101                 while ((line = in.readLine()) != null && line.matches("\\d+-")) {
 102                 }
 103
 104         }
 105
 106 }