Package org.apache.james.protocols.pop3

Examples of org.apache.james.protocols.pop3.POP3Response

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     * Handler method called upon receipt of a UIDL command. Returns a listing
     * of message ids to the client.
     */
    @SuppressWarnings("unchecked")
    public Response onCommand(POP3Session session, Request request) {
        POP3Response response = null;
        String parameters = request.getArgument();
        if (session.getHandlerState() == POP3Session.TRANSACTION) {
            List<MessageMetaData> uidList = (List<MessageMetaData>) session.getAttachment(POP3Session.UID_LIST, State.Transaction);
            List<Long> deletedUidList = (List<Long>) session.getAttachment(POP3Session.DELETED_UID_LIST, State.Transaction);
            try {
                String identifier = session.getUserMailbox().getIdentifier();
                if (parameters == null) {
                    response = new POP3Response(POP3Response.OK_RESPONSE, "unique-id listing follows");
                    for (int i = 0; i < uidList.size(); i++) {
                        Long uid = uidList.get(i).getUid();
                        if (deletedUidList.contains(uid) == false) {
                            // construct unique UIDL. See JAMES-1264
                            StringBuilder responseBuffer = new StringBuilder(64).append(i + 1).append(" ").append(identifier).append("-").append(uid);
                            response.appendLine(responseBuffer.toString());
                        }
                    }

                    response.appendLine(".");
                } else {
                    int num = 0;
                    try {
                        num = Integer.parseInt(parameters);
                       
                        MessageMetaData data = MessageMetaDataUtils.getMetaData(session, num);
                        if (data == null) {
                            StringBuilder responseBuffer = new StringBuilder(64).append("Message (").append(num).append(") does not exist.");
                            return  new POP3Response(POP3Response.ERR_RESPONSE, responseBuffer.toString());
                        }
                        long uid = data.getUid();
                       
                        if (deletedUidList.contains(uid) == false) {
                            // construct unique UIDL. See JAMES-1264
                            StringBuilder responseBuffer = new StringBuilder(64).append(num).append(" ").append(identifier).append("-").append(uid);
                            response = new POP3Response(POP3Response.OK_RESPONSE, responseBuffer.toString());

                        } else {
                            StringBuilder responseBuffer = new StringBuilder(64).append("Message (").append(num).append(") already deleted.");
                            response = new POP3Response(POP3Response.ERR_RESPONSE, responseBuffer.toString());
                        }
                    } catch (IndexOutOfBoundsException npe) {
                        StringBuilder responseBuffer = new StringBuilder(64).append("Message (").append(num).append(") does not exist.");
                        response = new POP3Response(POP3Response.ERR_RESPONSE, responseBuffer.toString());
                    } catch (NumberFormatException nfe) {
                        StringBuilder responseBuffer = new StringBuilder(64).append(parameters).append(" is not a valid number");
                        response = new POP3Response(POP3Response.ERR_RESPONSE, responseBuffer.toString());
                    }
                }
            } catch (IOException e) {
                return POP3Response.ERR;
            }
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        String parameters = request.getArgument();
        List<MessageMetaData> uidList = (List<MessageMetaData>) session.getAttachment(POP3Session.UID_LIST, State.Transaction);
        List<Long> deletedUidList = (List<Long>) session.getAttachment(POP3Session.DELETED_UID_LIST, State.Transaction);

        if (session.getHandlerState() == POP3Session.TRANSACTION) {
            POP3Response response = null;

            if (parameters == null) {

                long size = 0;
                int count = 0;
                List<MessageMetaData> validResults = new ArrayList<MessageMetaData>();
                if (uidList.isEmpty() == false) {

                    for (int i = 0; i < uidList.size(); i++) {
                        MessageMetaData data = uidList.get(i);
                        if (deletedUidList.contains(data.getUid()) == false) {
                            size += data.getSize();
                            count++;
                            validResults.add(data);
                        }
                    }
                }
                StringBuilder responseBuffer = new StringBuilder(32).append(count).append(" ").append(size);
                response = new POP3Response(POP3Response.OK_RESPONSE, responseBuffer.toString());
                count = 0;
                for (int i = 0; i < validResults.size(); i++) {
                    responseBuffer = new StringBuilder(16).append(i + 1).append(" ").append(validResults.get(i).getSize());
                    response.appendLine(responseBuffer.toString());
                }
                response.appendLine(".");
            } else {
                int num = 0;
                try {
                    num = Integer.parseInt(parameters);
                   
                    MessageMetaData data = MessageMetaDataUtils.getMetaData(session, num);
                    if (data == null) {
                        StringBuilder responseBuffer = new StringBuilder(64).append("Message (").append(num).append(") does not exist.");
                        return  new POP3Response(POP3Response.ERR_RESPONSE, responseBuffer.toString());
                    }
                   
                    if (deletedUidList.contains(data.getUid()) == false) {

                        StringBuilder responseBuffer = new StringBuilder(64).append(num).append(" ").append(data.getSize());
                        response = new POP3Response(POP3Response.OK_RESPONSE, responseBuffer.toString());
                    } else {
                        StringBuilder responseBuffer = new StringBuilder(64).append("Message (").append(num).append(") already deleted.");
                        response = new POP3Response(POP3Response.ERR_RESPONSE, responseBuffer.toString());
                    }
                } catch (IndexOutOfBoundsException npe) {
                    StringBuilder responseBuffer = new StringBuilder(64).append("Message (").append(num).append(") does not exist.");
                    response = new POP3Response(POP3Response.ERR_RESPONSE, responseBuffer.toString());
                } catch (NumberFormatException nfe) {
                    StringBuilder responseBuffer = new StringBuilder(64).append(parameters).append(" is not a valid number");
                    response = new POP3Response(POP3Response.ERR_RESPONSE, responseBuffer.toString());
                }
            }
            return response;
        } else {
            return POP3Response.ERR;
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        // store the timestamp for later usage
        session.setAttachment(POP3Session.APOP_TIMESTAMP, responseBuffer.toString(), State.Connection);
       
        // complete the response banner and send it back to the client
        responseBuffer.append("POP3 server (").append(session.getConfiguration().getSoftwareName()).append(") ready ");
        POP3Response response = new POP3Response(POP3Response.OK_RESPONSE, responseBuffer.toString());
        return response;
    }
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                        validResults.add(data);
                    }
                }
            }
            StringBuilder responseBuffer = new StringBuilder(32).append(count).append(" ").append(size);
            return new POP3Response(POP3Response.OK_RESPONSE, responseBuffer.toString());

        } else {
            return POP3Response.ERR;
        }
    }
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                String uid = data.getUid();
                if (deletedUidList.contains(uid) == false) {

                    InputStream message = new CountingBodyInputStream(new ExtraDotInputStream(new CRLFTerminatedInputStream(session.getUserMailbox().getMessage(uid))), lines);
                    if (message != null) {
                        return new POP3StreamResponse(POP3Response.OK_RESPONSE, "Message follows", message);
                    } else {
                        StringBuilder exceptionBuffer = new StringBuilder(64).append("Message (").append(num).append(") does not exist.");
                        return new POP3Response(POP3Response.ERR_RESPONSE, exceptionBuffer.toString());
                    }
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                if (deletedUidList.contains(uid) == false) {
                    InputStream content = session.getUserMailbox().getMessage(uid);

                    if (content != null) {
                        InputStream in = new CRLFTerminatedInputStream(new ExtraDotInputStream(content));
                        response = new POP3StreamResponse(POP3Response.OK_RESPONSE, "Message follows", in);
                        return response;
                    } else {
                        StringBuilder responseBuffer = new StringBuilder(64).append("Message (").append(num).append(") does not exist.");
                        response = new POP3Response(POP3Response.ERR_RESPONSE, responseBuffer.toString());
                    }
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                if (deletedUidList.contains(uid) == false) {

                    InputStream body = new CountingBodyInputStream(new ExtraDotInputStream(new CRLFTerminatedInputStream(session.getUserMailbox().getMessageBody(uid))), lines);
                    InputStream headers = session.getUserMailbox().getMessageHeaders(uid);
                    if (body != null && headers != null) {
                        response = new POP3StreamResponse(POP3Response.OK_RESPONSE, "Message follows", new SequenceInputStream(headers, body));
                        return response;

                    } else {
                        StringBuilder exceptionBuffer = new StringBuilder(64).append("Message (").append(num).append(") does not exist.");
                        response = new POP3Response(POP3Response.ERR_RESPONSE, exceptionBuffer.toString());
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                if (deletedUidList.contains(uid) == false) {
                    InputStream content = session.getUserMailbox().getMessage(uid);

                    if (content != null) {
                        InputStream in = new CRLFTerminatedInputStream(new ExtraDotInputStream(content));
                        response = new POP3StreamResponse(POP3Response.OK_RESPONSE, "Message follows", in);
                        return response;
                    } else {
                        StringBuilder responseBuffer = new StringBuilder(64).append("Message (").append(num).append(") does not exist.");
                        response = new POP3Response(POP3Response.ERR_RESPONSE, responseBuffer.toString());
                    }
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                if (deletedUidList.contains(uid) == false) {

                    InputStream body = new CountingBodyInputStream(new ExtraDotInputStream(new CRLFTerminatedInputStream(session.getUserMailbox().getMessageBody(uid))), lines);
                    InputStream headers = session.getUserMailbox().getMessageHeaders(uid);
                    if (body != null && headers != null) {
                        return new POP3StreamResponse(POP3Response.OK_RESPONSE, "Message follows", new SequenceInputStream(headers, body));

                    } else {
                        StringBuilder exceptionBuffer = new StringBuilder(64).append("Message (").append(num).append(") does not exist.");
                        return new POP3Response(POP3Response.ERR_RESPONSE, exceptionBuffer.toString());
                    }
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                if (deletedUidList.contains(uid) == false) {
                    InputStream content = session.getUserMailbox().getMessage(uid);

                    if (content != null) {
                        InputStream in = new CRLFTerminatedInputStream(new ExtraDotInputStream(content));
                        response = new POP3StreamResponse(POP3Response.OK_RESPONSE, "Message follows", in);
                        return response;
                    } else {
                        StringBuilder responseBuffer = new StringBuilder(64).append("Message (").append(num).append(") does not exist.");
                        response = new POP3Response(POP3Response.ERR_RESPONSE, responseBuffer.toString());
                    }
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