Factor Out sendmail (Abstraction for Email provider)

[gigi.git] / src / org / cacert / gigi / email / Sendmail.java

diff --git a/src/org/cacert/gigi/email/Sendmail.java b/src/org/cacert/gigi/email/Sendmail.java
new file mode 100644 (file)
index 0000000..f709169
--- /dev/null
+++ b/src/org/cacert/gigi/email/Sendmail.java
@@ -0,0 +1,106 @@
+package org.cacert.gigi.email;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.PrintWriter;
+import java.net.Socket;
+import java.text.SimpleDateFormat;
+import java.util.Base64;
+import java.util.Date;
+import java.util.Locale;
+import java.util.regex.Pattern;
+
+class Sendmail {
+       private Sendmail() {
+       }
+       private static final Pattern NON_ASCII = Pattern
+                       .compile("[^a-zA-Z0-9 .-\\[\\]!_@]");
+
+       public static void sendmail(String to, String subject, String message,
+                       String from, String replyto, String toname, String fromname,
+                       String errorsto, boolean extra) throws IOException {
+
+               String[] bits = from.split(",");
+
+               Socket smtp = new Socket("dogcraft.de", 25);
+               PrintWriter out = new PrintWriter(smtp.getOutputStream());
+               BufferedReader in = new BufferedReader(new InputStreamReader(
+                               smtp.getInputStream()));
+               readResponse(in);
+               out.print("HELO www.cacert.org\r\n");
+               out.flush();
+               readResponse(in);
+               out.print("MAIL FROM:<returns@cacert.org>\r\n");
+               out.flush();
+               readResponse(in);
+               bits = to.split(",");
+               for (String user : bits) {
+                       out.print("RCPT TO:<" + user.trim() + ">\r\n");
+                       out.flush();
+                       readResponse(in);
+               }
+               out.print("DATA\r\n");
+               out.flush();
+               readResponse(in);
+               out.print("X-Mailer: CAcert.org Website\r\n");
+               // if (array_key_exists("REMOTE_ADDR", $_SERVER)) {
+               // out.print("X-OriginatingIP: ".$_SERVER["REMOTE_ADDR"]."\r\n");
+               // }
+               // TODO
+               SimpleDateFormat emailDate = new SimpleDateFormat(
+                               "E, d MMM yyyy HH:mm:ss ZZZZ (z)", Locale.ENGLISH);
+               out.print("Date: "
+                               + emailDate.format(new Date(System.currentTimeMillis()))
+                               + "\r\n");
+               out.print("Sender: " + errorsto + "\r\n");
+               out.print("Errors-To: " + errorsto + "\r\n");
+               if (replyto != null) {
+                       out.print("Reply-To: " + replyto + "\r\n");
+               } else {
+                       out.print("Reply-To: " + from + "\r\n");
+               }
+               out.print("From: " + from + "\r\n");
+               out.print("To: " + to + "\r\n");
+               if (NON_ASCII.matcher(subject).matches()) {
+
+                       out.print("Subject: =?utf-8?B?"
+                                       + Base64.getEncoder().encodeToString(subject.getBytes())
+                                       + "?=\r\n");
+               } else {
+                       out.print("Subject: " + subject + "\r\n");
+               }
+               out.print("Mime-Version: 1.0\r\n");
+               if (!extra) {
+                       out.print("Content-Type: text/plain; charset=\"utf-8\"\r\n");
+                       out.print("Content-Transfer-Encoding: 8bit\r\n");
+               } else {
+                       out.print("Content-Type: text/plain; charset=\"iso-8859-1\"\r\n");
+                       out.print("Content-Transfer-Encoding: quoted-printable\r\n");
+                       out.print("Content-Disposition: inline\r\n");
+               }
+               // out.print("Content-Transfer-Encoding: BASE64\r\n");
+               out.print("\r\n");
+               // out.print(chunk_split(base64_encode(recode("html..utf-8",
+               // $message)))."\r\n.\r\n");
+               message = message + "\r\n";
+
+               String sendM = message.replace("\r", "").replace("\n.\n", "\n")
+                               .replace("\n.\n", "\n").replace("\n", "\r\n")
+                               + ".\r\n";
+               out.print(sendM);
+               out.flush();
+               readResponse(in);
+               out.print("QUIT\n");
+               out.flush();
+               readResponse(in);
+               smtp.close();
+       }
+       private static void readResponse(BufferedReader in) throws IOException {
+               String line;
+               while ((line = in.readLine()) != null && line.matches("\\d+-")) {
+               }
+
+       }
+
+}