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package org.mule.transport.email; |
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import org.mule.api.MuleEvent; |
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import org.mule.api.MuleMessage; |
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import org.mule.api.endpoint.EndpointURI; |
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import org.mule.api.endpoint.InboundEndpoint; |
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import org.mule.transport.AbstractMessageRequester; |
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import com.sun.mail.imap.IMAPMessage; |
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import java.net.URLDecoder; |
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import javax.mail.Flags; |
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import javax.mail.Folder; |
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import javax.mail.Message; |
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import javax.mail.MessagingException; |
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import javax.mail.Store; |
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import javax.mail.internet.MimeMessage; |
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public class RetrieveMessageRequester extends AbstractMessageRequester |
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{ |
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private Folder folder; |
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private Folder moveToFolder; |
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public RetrieveMessageRequester(InboundEndpoint endpoint) |
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{ |
43 | 0 | super(endpoint); |
44 | 0 | } |
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private AbstractRetrieveMailConnector castConnector() |
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{ |
48 | 0 | return (AbstractRetrieveMailConnector) getConnector(); |
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} |
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@Override |
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protected void doConnect() throws Exception |
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{ |
54 | 0 | if (folder == null || !folder.isOpen()) |
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{ |
56 | 0 | Store store = castConnector().getSessionDetails(endpoint).newStore(); |
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|
58 | 0 | EndpointURI uri = endpoint.getEndpointURI(); |
59 | 0 | String encoding = endpoint.getEncoding(); |
60 | 0 | String user = (uri.getUser() != null ? URLDecoder.decode(uri.getUser(), encoding) : null); |
61 | 0 | String pass = (uri.getPassword() != null ? URLDecoder.decode(uri.getPassword(), encoding) : null); |
62 | 0 | store.connect(uri.getHost(), uri.getPort(), user, pass); |
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|
64 | 0 | folder = store.getFolder(castConnector().getMailboxFolder()); |
65 | 0 | ensureFolderIsOpen(folder); |
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|
67 | 0 | if (castConnector().getMoveToFolder() != null) |
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{ |
69 | 0 | moveToFolder = store.getFolder(castConnector().getMoveToFolder()); |
70 | 0 | ensureFolderIsOpen(moveToFolder); |
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} |
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} |
73 | 0 | } |
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protected void ensureFolderIsOpen(Folder fldr) |
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{ |
77 | 0 | if (!fldr.isOpen()) |
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{ |
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try |
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{ |
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|
84 | 0 | fldr.open(Folder.READ_WRITE); |
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} |
86 | 0 | catch (MessagingException e) |
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{ |
88 | 0 | logger.warn("Failed to open folder: " + fldr.getFullName() + " This is not an exception since some server implementations do not require the folder to be open", e); |
89 | 0 | } |
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} |
91 | 0 | } |
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@Override |
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protected void doDisconnect() throws Exception |
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{ |
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try |
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{ |
99 | 0 | if (folder != null) |
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{ |
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try |
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{ |
103 | 0 | folder.expunge(); |
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} |
105 | 0 | catch (MessagingException e) |
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{ |
107 | 0 | if (logger.isDebugEnabled()) |
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{ |
109 | 0 | logger.debug("ignoring exception on expunge: " + e.getMessage()); |
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} |
111 | 0 | } |
112 | 0 | if (folder.isOpen()) |
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{ |
114 | 0 | folder.close(true); |
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} |
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} |
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} |
118 | 0 | catch (Exception e) |
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{ |
120 | 0 | logger.error("Failed to close inbox: " + e.getMessage(), e); |
121 | 0 | } |
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try |
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{ |
125 | 0 | if (moveToFolder != null) |
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{ |
127 | 0 | if (moveToFolder.isOpen()) |
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{ |
129 | 0 | moveToFolder.close(false); |
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} |
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} |
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} |
133 | 0 | catch (Exception e) |
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{ |
135 | 0 | logger.error("Failed to close moveToFolder: " + e.getMessage(), e); |
136 | 0 | } |
137 | 0 | } |
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protected void doDispatch(MuleEvent event) throws Exception |
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{ |
145 | 0 | throw new UnsupportedOperationException("Cannot dispatch from a POP3/IMAP connection"); |
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} |
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protected MuleMessage doSend(MuleEvent event) throws Exception |
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{ |
154 | 0 | throw new UnsupportedOperationException("Cannot send from a POP3/IMAP connection"); |
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} |
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@Override |
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protected MuleMessage doRequest(long timeout) throws Exception |
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{ |
172 | 0 | long t0 = System.currentTimeMillis(); |
173 | 0 | if (timeout < 0) |
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{ |
175 | 0 | timeout = Long.MAX_VALUE; |
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} |
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do |
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{ |
180 | 0 | if (hasMessages()) |
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{ |
182 | 0 | int count = getMessageCount(); |
183 | 0 | if (count > 0) |
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{ |
185 | 0 | Message message = getNextMessage(); |
186 | 0 | if (message != null) |
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{ |
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|
189 | 0 | flagMessage(message); |
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|
191 | 0 | if (moveToFolder != null) |
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{ |
193 | 0 | Message newMessage = message; |
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|
196 | 0 | if (message instanceof IMAPMessage) |
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{ |
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|
199 | 0 | newMessage = new MimeMessage((IMAPMessage) message); |
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} |
201 | 0 | folder.copyMessages(new Message[]{message}, moveToFolder); |
202 | 0 | message = newMessage; |
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} |
204 | 0 | return createMuleMessage(message, endpoint.getEncoding()); |
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} |
206 | 0 | } |
207 | 0 | else if (count == -1) |
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{ |
209 | 0 | throw new MessagingException("Cannot monitor folder: " + folder.getFullName() |
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+ " as folder is closed"); |
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} |
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} |
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|
214 | 0 | long sleep = |
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Math.min(castConnector().getCheckFrequency(), |
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timeout - (System.currentTimeMillis() - t0)); |
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|
218 | 0 | if (sleep > 0) |
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{ |
220 | 0 | if (logger.isDebugEnabled()) |
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{ |
222 | 0 | logger.debug("No results, sleeping for " + sleep); |
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} |
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try |
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{ |
226 | 0 | Thread.sleep(sleep); |
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} |
228 | 0 | catch (InterruptedException e) |
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{ |
230 | 0 | logger.warn("Thread interrupted while requesting email on: " + endpoint.getEndpointURI().toString()); |
231 | 0 | return null; |
232 | 0 | } |
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} |
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else |
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{ |
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|
237 | 0 | logger.debug("Timeout"); |
238 | 0 | return null; |
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} |
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} |
242 | 0 | while (true); |
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} |
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protected void flagMessage(Message message) throws MessagingException |
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{ |
252 | 0 | if (castConnector().isDeleteReadMessages()) |
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{ |
254 | 0 | message.setFlag(Flags.Flag.DELETED, true); |
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} |
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else |
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{ |
258 | 0 | message.setFlag(Flags.Flag.SEEN, true); |
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} |
260 | 0 | } |
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protected Message getNextMessage() throws MessagingException |
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{ |
264 | 0 | if (getMessageCount() > 0) |
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{ |
266 | 0 | Message message = folder.getMessage(1); |
267 | 0 | if (!message.isExpunged()) |
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{ |
269 | 0 | return message; |
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} |
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} |
272 | 0 | return null; |
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} |
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protected int getMessageCount() throws MessagingException |
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{ |
277 | 0 | return folder.getMessageCount(); |
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} |
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protected boolean hasMessages() throws MessagingException |
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{ |
287 | 0 | return getMessageCount() > 0; |
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} |
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@Override |
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protected void doDispose() |
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{ |
293 | 0 | if (null != folder && folder.isOpen()) |
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{ |
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try |
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{ |
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|
298 | 0 | folder.close(true); |
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} |
300 | 0 | catch (Exception e) |
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{ |
302 | 0 | logger.debug("ignoring exception: " + e.getMessage(), e); |
303 | 0 | } |
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} |
305 | 0 | } |
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} |