1 package org.cacert.gigi.email;
3 import java.io.BufferedReader;
4 import java.io.IOException;
5 import java.io.InputStreamReader;
6 import java.io.OutputStreamWriter;
7 import java.io.PrintWriter;
8 import java.net.Socket;
9 import java.security.GeneralSecurityException;
10 import java.text.SimpleDateFormat;
11 import java.util.Base64;
12 import java.util.Date;
13 import java.util.Locale;
14 import java.util.Properties;
15 import java.util.regex.Pattern;
17 import org.cacert.gigi.util.ServerConstants;
19 public class Sendmail extends EmailProvider {
21 protected Sendmail(Properties props) {}
23 private static final Pattern NON_ASCII = Pattern.compile("[^a-zA-Z0-9 .-\\[\\]!_@]");
26 public void sendmail(String to, String subject, String message, String from, String replyto, String toname, String fromname, String errorsto, boolean extra) throws IOException {
28 String[] bits = from.split(",");
30 try (Socket smtp = new Socket("localhost", 25); PrintWriter out = new PrintWriter(new OutputStreamWriter(smtp.getOutputStream(), "UTF-8")); BufferedReader in = new BufferedReader(new InputStreamReader(smtp.getInputStream(), "UTF-8"));) {
31 readSMTPResponse(in, 220);
32 out.print("HELO www.cacert.org\r\n");
34 readSMTPResponse(in, 250);
35 out.print("MAIL FROM:<returns@cacert.org>\r\n");
37 readSMTPResponse(in, 250);
39 for (String user : bits) {
40 out.print("RCPT TO:<" + user.trim() + ">\r\n");
42 readSMTPResponse(in, 250);
44 out.print("DATA\r\n");
46 readSMTPResponse(in, 250);
47 out.print("X-Mailer: CAcert.org Website\r\n");
48 // if (array_key_exists("REMOTE_ADDR", $_SERVER)) {
49 // out.print("X-OriginatingIP: ".$_SERVER["REMOTE_ADDR"]."\r\n");
52 SimpleDateFormat emailDate = new SimpleDateFormat("E, d MMM yyyy HH:mm:ss ZZZZ (z)", Locale.ENGLISH);
53 out.print("Date: " + emailDate.format(new Date(System.currentTimeMillis())) + "\r\n");
54 if (errorsto != null) {
55 out.print("Sender: " + errorsto + "\r\n");
56 out.print("Errors-To: " + errorsto + "\r\n");
58 if (replyto != null) {
59 out.print("Reply-To: " + replyto + "\r\n");
61 out.print("Reply-To: " + from + "\r\n");
63 out.print("From: support@" + ServerConstants.getWwwHostName().replaceAll("^www.", "") + "\r\n");
64 out.print("To: " + to + "\r\n");
65 if (NON_ASCII.matcher(subject).matches()) {
67 out.print("Subject: =?utf-8?B?" + Base64.getEncoder().encodeToString(subject.getBytes("UTF-8")) + "?=\r\n");
69 out.print("Subject: " + subject + "\r\n");
71 StringBuffer headers = new StringBuffer();
72 headers.append("Content-Type: text/plain; charset=\"utf-8\"\r\n");
73 headers.append("Content-Transfer-Encoding: base64\r\n");
74 // out.print(chunk_split(base64_encode(recode("html..utf-8",
75 // $message)))."\r\n.\r\n");
76 headers.append("\r\n");
77 headers.append(Base64.getEncoder().encodeToString(message.getBytes("UTF-8")).replaceAll("(.{64})(?=.)", "$1\r\n"));
78 headers.append("\r\n");
81 sendSigned(headers.toString(), out);
82 out.print("\r\n.\r\n");
84 } catch (GeneralSecurityException e) {
88 readSMTPResponse(in, 250);
91 readSMTPResponse(in, 221);
95 public static boolean readSMTPResponse(BufferedReader in, int code) throws IOException {
97 while ((line = in.readLine()) != null) {
98 if (line.startsWith(code + " ")) {
100 } else if ( !line.startsWith(code + "-")) {