| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 1999 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, if |
| * any, must include the following acknowlegement: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowlegement may appear in the software itself, |
| * if and wherever such third-party acknowlegements normally appear. |
| * |
| * 4. The names "The Jakarta Project", "Ant", and "Apache Software |
| * Foundation" must not be used to endorse or promote products derived |
| * from this software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache" |
| * nor may "Apache" appear in their names without prior written |
| * permission of the Apache Group. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| */ |
| |
| /* |
| * The original version of this class was donated by Jason Hunter, |
| * who wrote the class as part of the com.oreilly.servlet |
| * package for his book "Java Servlet Programming" (O'Reilly). |
| * See http://www.servlets.com. |
| * |
| */ |
| |
| package org.apache.tools.mail; |
| |
| import java.io.*; |
| import java.net.*; |
| import java.util.*; |
| |
| /** |
| * A class to help send SMTP email. |
| * This class is an improvement on the sun.net.smtp.SmtpClient class |
| * found in the JDK. This version has extra functionality, and can be used |
| * with JVMs that did not extend from the JDK. It's not as robust as |
| * the JavaMail Standard Extension classes, but it's easier to use and |
| * easier to install, and has an Open Source license. |
| * <p> |
| * It can be used like this: |
| * <blockquote><pre> |
| * String mailhost = "localhost"; // or another mail host |
| * String from = "Mail Message Servlet <MailMessage@server.com>"; |
| * String to = "to@you.com"; |
| * String cc1 = "cc1@you.com"; |
| * String cc2 = "cc2@you.com"; |
| * String bcc = "bcc@you.com"; |
| * |
| * MailMessage msg = new MailMessage(mailhost); |
| * msg.from(from); |
| * msg.to(to); |
| * msg.cc(cc1); |
| * msg.cc(cc2); |
| * msg.bcc(bcc); |
| * msg.setSubject("Test subject"); |
| * PrintStream out = msg.getPrintStream(); |
| * |
| * Enumeration enum = req.getParameterNames(); |
| * while (enum.hasMoreElements()) { |
| * String name = (String)enum.nextElement(); |
| * String value = req.getParameter(name); |
| * out.println(name + " = " + value); |
| * } |
| * |
| * msg.sendAndClose(); |
| * </pre></blockquote> |
| * <p> |
| * Be sure to set the from address, then set the recepient |
| * addresses, then set the subject and other headers, then get the |
| * PrintStream, then write the message, and finally send and close. |
| * The class does minimal error checking internally; it counts on the mail |
| * host to complain if there's any malformatted input or out of order |
| * execution. |
| * <p> |
| * An attachment mechanism based on RFC 1521 could be implemented on top of |
| * this class. In the meanwhile, JavaMail is the best solution for sending |
| * email with attachments. |
| * <p> |
| * Still to do: |
| * <ul> |
| * <li>Figure out how to close the connection in case of error |
| * </ul> |
| * |
| * @author Jason Hunter |
| * @version 1.1, 2000/03/19, added angle brackets to address, helps some servers |
| * version 1.0, 1999/12/29 |
| */ |
| public class MailMessage { |
| |
| String host; |
| String from; |
| Vector to, cc; |
| Hashtable headers; |
| MailPrintStream out; |
| SmtpResponseReader in; |
| Socket socket; |
| |
| /** |
| * Constructs a new MailMessage to send an email. |
| * Use localhost as the mail server. |
| * |
| * @exception IOException if there's any problem contacting the mail server |
| */ |
| public MailMessage() throws IOException { |
| this("localhost"); |
| } |
| |
| /** |
| * Constructs a new MailMessage to send an email. |
| * Use the given host as the mail server. |
| * |
| * @param host the mail server to use |
| * @exception IOException if there's any problem contacting the mail server |
| */ |
| public MailMessage(String host) throws IOException { |
| this.host = host; |
| to = new Vector(); |
| cc = new Vector(); |
| headers = new Hashtable(); |
| setHeader("X-Mailer", "org.apache.tools.mail.MailMessage (jakarta.apache.org)"); |
| connect(); |
| sendHelo(); |
| } |
| |
| /** |
| * Sets the from address. Also sets the "From" header. This method should |
| * be called only once. |
| * |
| * @exception IOException if there's any problem reported by the mail server |
| */ |
| public void from(String from) throws IOException { |
| sendFrom(from); |
| this.from = from; |
| } |
| |
| /** |
| * Sets the to address. Also sets the "To" header. This method may be |
| * called multiple times. |
| * |
| * @exception IOException if there's any problem reported by the mail server |
| */ |
| public void to(String to) throws IOException { |
| sendRcpt(to); |
| this.to.addElement(to); |
| } |
| |
| /** |
| * Sets the cc address. Also sets the "Cc" header. This method may be |
| * called multiple times. |
| * |
| * @exception IOException if there's any problem reported by the mail server |
| */ |
| public void cc(String cc) throws IOException { |
| sendRcpt(cc); |
| this.cc.addElement(cc); |
| } |
| |
| /** |
| * Sets the bcc address. Does NOT set any header since it's a *blind* copy. |
| * This method may be called multiple times. |
| * |
| * @exception IOException if there's any problem reported by the mail server |
| */ |
| public void bcc(String bcc) throws IOException { |
| sendRcpt(bcc); |
| // No need to keep track of Bcc'd addresses |
| } |
| |
| /** |
| * Sets the subject of the mail message. Actually sets the "Subject" |
| * header. |
| */ |
| public void setSubject(String subj) { |
| headers.put("Subject", subj); |
| } |
| |
| /** |
| * Sets the named header to the given value. RFC 822 provides the rules for |
| * what text may constitute a header name and value. |
| */ |
| public void setHeader(String name, String value) { |
| // Blindly trust the user doesn't set any invalid headers |
| headers.put(name, value); |
| } |
| |
| /** |
| * Returns a PrintStream that can be used to write the body of the message. |
| * A stream is used since email bodies are byte-oriented. A writer could |
| * be wrapped on top if necessary for internationalization. |
| * |
| * @exception IOException if there's any problem reported by the mail server |
| */ |
| public PrintStream getPrintStream() throws IOException { |
| setFromHeader(); |
| setToHeader(); |
| setCcHeader(); |
| sendData(); |
| flushHeaders(); |
| return out; |
| } |
| |
| void setFromHeader() { |
| setHeader("From", from); |
| } |
| |
| void setToHeader() { |
| setHeader("To", vectorToList(to)); |
| } |
| |
| void setCcHeader() { |
| setHeader("Cc", vectorToList(cc)); |
| } |
| |
| String vectorToList(Vector v) { |
| StringBuffer buf = new StringBuffer(); |
| Enumeration e = v.elements(); |
| while (e.hasMoreElements()) { |
| buf.append(e.nextElement()); |
| if (e.hasMoreElements()) { |
| buf.append(", "); |
| } |
| } |
| return buf.toString(); |
| } |
| |
| void flushHeaders() throws IOException { |
| // XXX Should I care about order here? |
| Enumeration e = headers.keys(); |
| while (e.hasMoreElements()) { |
| String name = (String) e.nextElement(); |
| String value = (String) headers.get(name); |
| out.println(name + ": " + value); |
| } |
| out.println(); |
| out.flush(); |
| } |
| |
| /** |
| * Sends the message and closes the connection to the server. |
| * The MailMessage object cannot be reused. |
| * |
| * @exception IOException if there's any problem reported by the mail server |
| */ |
| public void sendAndClose() throws IOException { |
| sendDot(); |
| sendQuit(); |
| disconnect(); |
| } |
| |
| // Make a limited attempt to extract a sanitized email address |
| // Prefer text in <brackets>, ignore anything in (parentheses) |
| static String sanitizeAddress(String s) { |
| int paramDepth = 0; |
| int start = 0; |
| int end = 0; |
| int len = s.length(); |
| |
| for (int i = 0; i < len; i++) { |
| char c = s.charAt(i); |
| if (c == '(') { |
| paramDepth++; |
| if (start == 0) { |
| end = i; // support "address (name)" |
| } |
| } |
| else if (c == ')') { |
| paramDepth--; |
| if (end == 0) { |
| start = i + 1; // support "(name) address" |
| } |
| } |
| else if (paramDepth == 0 && c == '<') { |
| start = i + 1; |
| } |
| else if (paramDepth == 0 && c == '>') { |
| end = i; |
| } |
| } |
| |
| if (end == 0) { |
| end = len; |
| } |
| |
| return s.substring(start, end); |
| } |
| |
| // * * * * * Raw protocol methods below here * * * * * |
| |
| void connect() throws IOException { |
| socket = new Socket(host, 25); |
| out = new MailPrintStream( |
| new BufferedOutputStream( |
| socket.getOutputStream())); |
| in = new SmtpResponseReader(socket.getInputStream()); |
| getReady(); |
| } |
| |
| void getReady() throws IOException { |
| String response = in.getResponse(); |
| int[] ok = { 220 }; |
| if (!isResponseOK(response, ok)) { |
| throw new IOException( |
| "Didn't get introduction from server: " + response); |
| } |
| } |
| |
| void sendHelo() throws IOException { |
| String local = InetAddress.getLocalHost().getHostName(); |
| int[] ok = { 250 }; |
| send("HELO " + local, ok); |
| } |
| |
| void sendFrom(String from) throws IOException { |
| int[] ok = { 250 }; |
| send("MAIL FROM: " + "<" + sanitizeAddress(from) + ">", ok); |
| } |
| |
| void sendRcpt(String rcpt) throws IOException { |
| int[] ok = { 250, 251 }; |
| send("RCPT TO: " + "<" + sanitizeAddress(rcpt) + ">", ok); |
| } |
| |
| void sendData() throws IOException { |
| int[] ok = { 354 }; |
| send("DATA", ok); |
| } |
| |
| void sendDot() throws IOException { |
| int[] ok = { 250 }; |
| send("\r\n.", ok); // make sure dot is on new line |
| } |
| |
| void sendQuit() throws IOException { |
| int[] ok = { 221 }; |
| send("QUIT", ok); |
| } |
| |
| void send(String msg, int[] ok) throws IOException { |
| out.rawPrint(msg + "\r\n"); // raw supports <CRLF>.<CRLF> |
| //System.out.println("S: " + msg); |
| String response = in.getResponse(); |
| //System.out.println("R: " + response); |
| if (!isResponseOK(response, ok)) { |
| throw new IOException( |
| "Unexpected reply to command: " + msg + ": " + response); |
| } |
| } |
| |
| boolean isResponseOK(String response, int[] ok) { |
| // Check that the response is one of the valid codes |
| for (int i = 0; i < ok.length; i++) { |
| if (response.startsWith("" + ok[i])) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| void disconnect() throws IOException { |
| if (out != null) out.close(); |
| if (in != null) in.close(); |
| if (socket != null) socket.close(); |
| } |
| } |
| |
| // This PrintStream subclass makes sure that <CRLF>. becomes <CRLF>.. |
| // per RFC 821. It also ensures that new lines are always \r\n. |
| // |
| class MailPrintStream extends PrintStream { |
| |
| int lastChar; |
| |
| public MailPrintStream(OutputStream out) { |
| super(out, true); // deprecated, but email is byte-oriented |
| } |
| |
| // Mac does \n\r, but that's tough to distinguish from Windows \r\n\r\n. |
| // Don't tackle that problem right now. |
| public void write(int b) { |
| if (b == '\n' && lastChar != '\r') { |
| rawWrite('\r'); // ensure always \r\n |
| rawWrite(b); |
| } |
| else if (b == '.' && lastChar == '\n') { |
| rawWrite('.'); // add extra dot |
| rawWrite(b); |
| } |
| else { |
| rawWrite(b); |
| } |
| lastChar = b; |
| } |
| |
| public void write(byte buf[], int off, int len) { |
| for (int i = 0; i < len; i++) { |
| write(buf[off + i]); |
| } |
| } |
| |
| void rawWrite(int b) { |
| super.write(b); |
| } |
| |
| void rawPrint(String s) { |
| int len = s.length(); |
| for (int i = 0; i < len; i++) { |
| rawWrite(s.charAt(i)); |
| } |
| } |
| } |
| |