Interesting, so this did not work?
attachment.setDataHandler(new DataHandler(mimePartDataSource));
attachment.setFileName("ticker.png");
I'll need to do some research into the Java mail spec to see if we are
matching it. Could be a bug if we aren't.
On Thu, Nov 26, 2009 at 12:48 PM, Don <[email protected]> wrote:
> Thanks Ikai.
>
> It did NOT work before because I set the dataHandler before I set the
> FileName.
>
> Just have to set the FileName and then set the DataHandler.
> attachment.setFileName("ticker.png");
> attachment.setDataHandler(new DataHandler(mimePartDataSource));
>
> Is this behaviour intentional?
>
> Many thanks
> Don
>
>
> On Nov 24, 10:15 am, "Ikai L (Google)" <[email protected]> wrote:
> > Don,
> >
> > First, a word of caution: you'll probably want to contact the creators of
> > the site you are trying to fetch the image from if you haven't done so
> > already. Their terms of service prohibit the use of automatic downloading
> of
> > images:http://support.stockcharts.com/forums/31090/entries/20485
> >
> > To fetch an image from a URL and send it via the Mail Service, this what
> you
> > need to do:
> >
> > 1. Fetch your URL
> > 2. Find the content type
> > 3. Read the stream into a byte[]
> > 4. Create a message and a data handler
> > 5. Pass the byte[] into the data source, then into the data handler
> >
> > Example code:http://pastie.org/712159
> >
> > import javax.servlet.http.HttpServlet;
> > import javax.servlet.http.HttpServletRequest;
> > import javax.servlet.http.HttpServletResponse;
> > import javax.servlet.ServletException;
> > import javax.mail.*;
> > import javax.mail.util.ByteArrayDataSource;
> > import javax.mail.internet.MimeMultipart;
> > import javax.mail.internet.MimeBodyPart;
> > import javax.mail.internet.MimeMessage;
> > import javax.mail.internet.InternetAddress;
> > import javax.activation.DataHandler;
> > import java.io.IOException;
> > import java.io.InputStream;
> > import java.io.ByteArrayOutputStream;
> > import java.net.URL;
> > import java.util.Properties;
> >
> > public class GetStockServlet extends HttpServlet {
> > private static final String SENDER = "[email protected]";
> > private static final String RECIPIENT = "[email protected]";
> >
> > protected void doGet(HttpServletRequest request, HttpServletResponse
> > response) throws ServletException, IOException {
> >
> > URL url = new URL("http://yoururl.com/image.png";);
> > InputStream in = url.openStream();
> >
> > byte[] rawData;
> > int len;
> > byte[] buffer = new byte[8192];
> > ByteArrayOutputStream output = new ByteArrayOutputStream();
> >
> > try {
> > while ((len = in.read(buffer, 0, buffer.length)) != -1)
> > output.write(buffer, 0, len);
> > rawData = output.toByteArray();
> > } finally {
> > output.close();
> > }
> >
> > response.setContentType("image/png");
> > response.getOutputStream().write(rawData);
> > response.getOutputStream().flush();
> >
> > String htmlBody = "Here is the quote you wanted";
> >
> > Properties props = new Properties();
> > Session session = Session.getDefaultInstance(props, null);
> >
> > Message message = new MimeMessage(session);
> >
> > Multipart mp = new MimeMultipart();
> >
> > MimeBodyPart htmlPart = new MimeBodyPart();
> >
> > try {
> > message.setFrom(new InternetAddress(SENDER, "Stock
> Service"));
> > message.addRecipient(Message.RecipientType.TO, new
> > InternetAddress(RECIPIENT));
> > message.setSubject("Stock Quote: " + symbol);
> >
> > htmlPart.setContent(htmlBody, "text/html");
> > mp.addBodyPart(htmlPart);
> >
> > ByteArrayDataSource dataSource = new
> > ByteArrayDataSource(rawData, "image/png");
> >
> > MimeBodyPart attachment = new MimeBodyPart();
> > attachment.setFileName(symbol + ".png");
> > attachment.setDataHandler(new
> > DataHandler(dataSource));
> > mp.addBodyPart(attachment);
> >
> > message.setContent(mp);
> > Transport.send(message);
> > } catch (MessagingException e) {
> > throw new IOException(e);
> > }
> >
> > }
> >
> > }
> > On Sun, Nov 22, 2009 at 9:04 AM, Don <[email protected]> wrote:
> > > Hi Ikai,
> >
> > > I tried your example code, but I cannot attach an image on the email
> > > that I send.
> > > There is no conversion error either.
> >
> > > Here is snippets of the code, please help..
> >
> > > //Retrieving image:
> > > URL url = new URL("http://stockcharts.com/c-sc/sc?s="; + ticker +
> > > "&p=DAILY&b=5&g=0&i=0&r=3528");
> > > //Sending mail
> > > SendMail sendmail = new SendMail(customerEmail, url.openStream());
> >
> > > // send mail function
> > > public SendMail(String recipient, InputStream imagestream) {
> > > msg.setFrom( new InternetAddress("[email protected]", "dons
> > > service"));
> > > msg.addRecipient(Message.RecipientType.TO, new
> > > InternetAddress
> > > (recipient));
> > > msg.setSubject("dons service daily charts");
> >
> > > Multipart multipart = new MimeMultipart();
> >
> > > MimeBodyPart htmlPart = new MimeBodyPart();
> > > htmlPart.setContent(" url2: " , "text/html");
> > > multipart.addBodyPart(htmlPart);
> >
> > > // append png image?
> > > ByteArrayDataSource mimePartDataSource = new
> > > ByteArrayDataSource
> > > (imagestream, "image/png");
> >
> > > MimeBodyPart attachment = new MimeBodyPart();
> > > attachment.setDataHandler(new
> > > DataHandler(mimePartDataSource));
> > > attachment.setFileName("ticker.png");
> > > multipart.addBodyPart(attachment);
> > > msg.setContent(multipart);
> >
> > > Transport.send(msg);
> > > }
> >
> > > On Nov 17, 5:35 am, "Ikai L (Google)" <[email protected]> wrote:
> > > > I couldn't reproduce your exact error, but I was able to put together
> a
> > > > working example of an inbound email handler to relay messages. I'm
> going
> > > to
> > > > expand the documentation about processing inbound emails. Here's some
> > > > working code:http://pastie.org/701517
> >
> > > > Does this example help any? Code is also pasted below, but it'll be
> > > easier
> > > > for you to look at the Pastie.
> >
> > > > import javax.servlet.http.HttpServlet;
> > > > import javax.servlet.http.HttpServletRequest;
> > > > import javax.servlet.http.HttpServletResponse;
> > > > import javax.servlet.ServletException;
> > > > import javax.mail.*;
> > > > import javax.mail.util.ByteArrayDataSource;
> > > > import javax.mail.internet.MimeMessage;
> > > > import javax.mail.internet.MimeMultipart;
> > > > import javax.mail.internet.MimeBodyPart;
> > > > import javax.mail.internet.InternetAddress;
> > > > import javax.activation.DataHandler;
> > > > import java.io.IOException;
> > > > import java.io.InputStream;
> > > > import java.util.logging.Logger;
> > > > import java.util.Properties;
> >
> > > > public class MailHandlerServlet extends HttpServlet {
> > > > private static final Logger log =
> > > > Logger.getLogger(MailHandlerServlet.class.getName());
> > > > private static final String RECIPIENT = "[email protected]";
> > > > private static final String SENDER = "[email protected]";
> >
> > > > protected void doPost(HttpServletRequest request,
> HttpServletResponse
> > > > response) throws ServletException, IOException {
> > > > Properties props = new Properties();
> > > > Session session = Session.getDefaultInstance(props, null);
> > > > try {
> > > > MimeMessage message = new MimeMessage(session,
> > > > request.getInputStream());
> >
> > > > Object content = message.getContent(); // You could also
> > > > probably just use message.getInputStream() here
> > > > // and avoid the
> > > > conditional type check
> >
> > > > if (content instanceof String) {
> > > > log.info("Received a string");
> > > > } else if (content instanceof InputStream) {
> > > > // My somewhat limited testing indicates that this is
> > > always
> > > > getting returned as an
> > > > // InputStream
> >
> > > > InputStream inputStream = (InputStream) content;
> > > > ByteArrayDataSource inboundDataSource = new
> > > > ByteArrayDataSource(inputStream, message.getContentType());
> > > > Multipart inboundMultipart = new
> > > > MimeMultipart(inboundDataSource);
> >
> > > > // Set the body with whatever text you want
> > > > Multipart outboundMultipart = new MimeMultipart();
> > > > MimeBodyPart messageBodyPart = new MimeBodyPart();
> > > > messageBodyPart.setText("Set your body here");
> > > > outboundMultipart.addBodyPart(messageBodyPart);
> >
> > > > // Loop over the multipart message coming in and
> > > > // append them to the outbound Multipart object
> > > > for (int i = 0; i < inboundMultipart.getCount(); i++)
> {
> > > > BodyPart part = inboundMultipart.getBodyPart(i);
> > > > /*
> > > > The content-disposition header is optional:
> > > > http://www.ietf.org/rfc/rfc1806.txt
> >
> > > > This header specifies the filename and type
> of
> > > > a MIME part.
> > > > */
> > > > if(part.getDisposition() == null) {
> > > > // This is just a plain text email
> > > > } else {
> > > > // We have something interesting. Let's parse
> it.
> >
> > > > // Create a new ByteArrayDataSource with this
> > > part
> > > > MimeBodyPart inboundMimeBodyPart =
> (MimeBodyPart)
> > > > part;
> > > > InputStream is = part.getInputStream();
> > > > ByteArrayDataSource mimePartDataSource = new
> > > > ByteArrayDataSource(is, inboundMimeBodyPart.getContentType());
> >
> > > > // Create a new outbound MimeBodyPart and set
> > > this
> > > > as the handler
> > > > MimeBodyPart outboundMimeBodyPart = new
> > > > MimeBodyPart();
> > > > outboundMimeBodyPart.setDataHandler(new
> > > > DataHandler(mimePartDataSource));
> >
> > > > outboundMimeBodyPart.setFileName(inboundMimeBodyPart.getFileName());
> >
> > > outboundMultipart.addBodyPart(outboundMimeBodyPart);
> >
> > > > }
> >
> > > > }
> > > > message.setContent(outboundMultipart);
> >
> > > > }
> > > > message.setFrom(new InternetAddress(SENDER, "Relay
> > > account"));
> >
> > ...
> >
> > read more ยป
>
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>
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>
>
--
Ikai Lan
Developer Programs Engineer, Google App Engine
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