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//---PACKAGE DECLARATION--- |
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package uk.ac.ukc.iscream.util; |
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package uk.org.iscream.cms.server.util; |
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//---IMPORTS--- |
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import java.net.*; |
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//---CONSTRUCTORS--- |
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/** |
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* Connects to the specified SMTP server |
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* Connects to the specified SMTP server, on the default |
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* (and standard) port 25. |
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* |
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* @param server The SMTP server to use |
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* @throws IOException if the connection to the server fails |
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*/ |
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public Smtp(String server) throws IOException { |
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this(server, 25); |
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} |
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/** |
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* Connects to the specified SMTP server on a given port |
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* |
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* @param server The SMTP server to use |
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* @param port The SMTP server port |
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* @throws IOException if the connection to the server fails |
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*/ |
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public Smtp(String server, int port) throws IOException { |
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_socket = new Socket(server, port); |
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_socketIn = new BufferedReader(new InputStreamReader(_socket.getInputStream())); |
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_socketOut = new PrintWriter(new BufferedWriter(new OutputStreamWriter(_socket.getOutputStream())), true); |
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_socketIn.readLine(); // get 220 welcome header |
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sendCommand("HELO " + InetAddress.getLocalHost().getHostName(), 250); |
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_socketOut = new PrintWriter(_socket.getOutputStream(), true); |
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init(); |
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} |
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//---PUBLIC METHODS--- |
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/** |
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* closes the connection |
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* Closes down the connection to the server |
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* |
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* @throws IOException if the command fails |
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*/ |
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public void close() throws IOException { |
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sendCommand("QUIT", 221); |
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_socketOut.close(); |
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_socket.close(); |
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} |
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/** |
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* Who is this message from? specify with this command. |
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* Specify who the message is from |
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* |
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* @param sender the e-mail address of the sender |
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* @throws IOException if the command fails |
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*/ |
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public void from(String from) throws IOException { |
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sendCommand("MAIL FROM: <" + from + ">", 250); |
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public void setSender(String sender) throws IOException { |
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sendCommand("MAIL FROM: <" + sender + ">", 250); |
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} |
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/** |
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* Who should this message go to? Specify with this command. |
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* Specify who the message is to be sent to |
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* |
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* @param to the e-mail address of the receiver |
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* @throws IOException if the command fails |
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*/ |
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public void to(String to) throws IOException { |
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public void setTo(String to) throws IOException { |
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sendCommand("RCPT TO: <" + to + ">", 250); |
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} |
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/** |
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* gets the outputstream |
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* Gets the PrintWriter allowing data to be sent |
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* directly to the SMTP server |
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* |
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* @return a reference to the PrintWriter |
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* @throws IOException if the command fails |
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*/ |
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public PrintWriter getOutputStream() throws IOException { |
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sendCommand("DATA", 354); |
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return _socketOut; |
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} |
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/** |
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* Sends current message. |
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* Completes and sends the current message |
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* |
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* @throws IOException if the command fails |
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*/ |
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public void sendMessage() throws IOException { |
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sendCommand(".", 250); |
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} |
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/** |
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* Sends a command to the server |
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* |
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* @param cmd The command to send |
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* @param reply The expected reply-code |
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* @throws IOException if the incorrect response code is received |
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*/ |
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public void sendCommand(String cmd, int reply) throws IOException { |
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_socketOut.println(cmd); |
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String temp = _socketIn.readLine(); |
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if (!temp.startsWith("" + reply)) { |
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if (temp == null) { |
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throw new IOException ("IO error reading from socket, connection to server died?"); |
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} |
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if (!temp.startsWith(String.valueOf(reply))) { |
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throw new IOException ("Expected " + reply + ", got " + temp); |
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} |
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} |
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/** |
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* Overrides the {@link java.lang.Object#toString() Object.toString()} |
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* method to provide clean logging (every class should have this). |
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* |
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* This uses the uk.ac.ukc.iscream.util.FormatName class |
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* This uses the uk.org.iscream.cms.server.util.FormatName class |
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* to format the toString() |
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* |
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* @return the name of this class and its CVS revision |
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//---PRIVATE METHODS--- |
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/** |
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* Check the server sends a 220 message, and |
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* then send our HELO. |
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* |
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* @throws IOException if something goes wrong |
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*/ |
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private void init() throws IOException { |
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String temp = _socketIn.readLine(); |
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// skip over any 220- lines |
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while(temp != null && temp.startsWith("220-")) { |
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temp = _socketIn.readLine(); |
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} |
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// check if we got a 220 welcome header |
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if(temp == null || !temp.startsWith("220 ")) { |
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throw new IOException ("Server did not initialise with a 220 message"); |
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} |
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// server gave a 220, it's ok to do a HELO |
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sendCommand("HELO " + InetAddress.getLocalHost().getHostName(), 250); |
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} |
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//---ACCESSOR/MUTATOR METHODS--- |
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//---ATTRIBUTES--- |
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* be changed to null for utility classes. |
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*/ |
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private String _name = null; |
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/** from the server */ |
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/** |
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* A reference to the Reader connected to the server |
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*/ |
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private BufferedReader _socketIn; |
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/** to the server */ |
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/** |
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* A reference to the Writer connected to the server |
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*/ |
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private PrintWriter _socketOut; |
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/** The socket to use for this connection */ |
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/** |
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* A reference to the Socket connected to the server |
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*/ |
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private Socket _socket; |
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//---STATIC ATTRIBUTES--- |