Examples of org.jivesoftware.smackx.bytestreams.ibb.packet.DataPacketExtension

Package org.jivesoftware.smackx.bytestreams.ibb.packet

Examples of org.jivesoftware.smackx.bytestreams.ibb.packet.DataPacketExtension

org.jivesoftware.smackx.bytestreams.ibb.packet.DataPacketExtension
Represents a chunk of data of an In-Band Bytestream within an IQ stanza or a message stanza @author Henning Staib

        new DataPacketExtension("sessionID", 70000, "data");
    }


    @Test(expected = IllegalArgumentException.class)
    public void shouldNotInstantiateWithInvalidArgument5() {
        new DataPacketExtension("sessionID", 0, null);
    }

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        new DataPacketExtension("sessionID", 0, null);
    }


    @Test
    public void shouldSetAllFieldsCorrectly() {
        DataPacketExtension data = new DataPacketExtension("sessionID", 0, "data");
        assertEquals("sessionID", data.getSessionID());
        assertEquals(0, data.getSeq());
        assertEquals("data", data.getData());
    }

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    }


    @Test
    public void shouldReturnNullIfDataIsInvalid() {
        // pad character is not at end of data
        DataPacketExtension data = new DataPacketExtension("sessionID", 0, "BBBB=CCC");
        assertNull(data.getDecodedData());


        // invalid Base64 character
        data = new DataPacketExtension("sessionID", 0, new String(new byte[] { 123 }));
        assertNull(data.getDecodedData());
    }

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            .a("seq", "0")
            .a("sid", "i781hf64")
            .t("DATA")
            .asString(outputProperties);


        DataPacketExtension data = new DataPacketExtension("i781hf64", 0, "DATA");
        assertXMLEqual(control, data.toXML());
    }

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         * @throws IOException if data packets are out of sequence
         */
        private synchronized boolean loadBuffer() throws IOException {


            // wait until data is available or stream is closed
            DataPacketExtension data = null;
            try {
                if (this.readTimeout == 0) {
                    while (data == null) {
                        if (isClosed && this.dataQueue.isEmpty()) {
                            return false;
                        }
                        data = this.dataQueue.poll(1000, TimeUnit.MILLISECONDS);
                    }
                }
                else {
                    data = this.dataQueue.poll(this.readTimeout, TimeUnit.MILLISECONDS);
                    if (data == null) {
                        throw new SocketTimeoutException();
                    }
                }
            }
            catch (InterruptedException e) {
                // Restore the interrupted status
                Thread.currentThread().interrupt();
                return false;
            }


            // handle sequence overflow
            if (this.seq == 65535) {
                this.seq = -1;
            }


            // check if data packets sequence is successor of last seen sequence
            long seq = data.getSeq();
            if (seq - 1 != this.seq) {
                // packets out of order; close stream/session
                InBandBytestreamSession.this.close();
                throw new IOException("Packets out of sequence");
            }
            else {
                this.seq = seq;
            }


            // set buffer to decoded data
            buffer = data.getDecodedData();
            bufferPointer = 0;
            return true;
        }

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                private long lastSequence = -1;


                public void processPacket(Packet packet) {
                    // get data packet extension
                    DataPacketExtension data = (DataPacketExtension) packet.getExtension(
                                    DataPacketExtension.ELEMENT_NAME,
                                    InBandBytestreamManager.NAMESPACE);


                    /*
                     * check if sequence was not used already (see XEP-0047 Section 2.2)
                     */
                    if (data.getSeq() <= this.lastSequence) {
                        IQ unexpectedRequest = IQ.createErrorResponse((IQ) packet, new XMPPError(
                                        XMPPError.Condition.unexpected_request));
                        connection.sendPacket(unexpectedRequest);
                        return;


                    }


                    // check if encoded data is valid (see XEP-0047 Section 2.2)
                    if (data.getDecodedData() == null) {
                        // data is invalid; respond with bad-request error
                        IQ badRequest = IQ.createErrorResponse((IQ) packet, new XMPPError(
                                        XMPPError.Condition.bad_request));
                        connection.sendPacket(badRequest);
                        return;
                    }


                    // data is valid; add to data queue
                    dataQueue.offer(data);


                    // confirm IQ
                    IQ confirmData = IQ.createResultIQ((IQ) packet);
                    connection.sendPacket(confirmData);


                    // set last seen sequence
                    this.lastSequence = data.getSeq();
                    if (this.lastSequence == 65535) {
                        this.lastSequence = -1;
                    }


                }

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        protected PacketListener getDataPacketListener() {
            return new PacketListener() {


                public void processPacket(Packet packet) {
                    // get data packet extension
                    DataPacketExtension data = (DataPacketExtension) packet.getExtension(
                                    DataPacketExtension.ELEMENT_NAME,
                                    InBandBytestreamManager.NAMESPACE);


                    // check if encoded data is valid
                    if (data.getDecodedData() == null) {
                        /*
                         * TODO once a majority of XMPP server implementation support XEP-0079
                         * Advanced Message Processing the invalid message could be answered with an
                         * appropriate error. For now we just ignore the packet. Subsequent packets
                         * with an increased sequence will cause the input stream to close the

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            if (packetExtension == null || !(packetExtension instanceof DataPacketExtension)) {
                return false;
            }


            // session ID equals this session ID
            DataPacketExtension data = (DataPacketExtension) packetExtension;
            if (!data.getSessionID().equals(byteStreamRequest.getSessionID())) {
                return false;
            }


            return true;
        }

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                return;
            }


            // create data packet
            String enc = StringUtils.encodeBase64(buffer, 0, bufferPointer, false);
            DataPacketExtension data = new DataPacketExtension(byteStreamRequest.getSessionID(),
                            this.seq, enc);


            // write to XMPP stream
            writeToXML(data);

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        // get the DataListener from InBandByteStreamManager
        DataListener dataListener = Whitebox.getInternalState(byteStreamManager,
                        DataListener.class);


        DataPacketExtension dpe = new DataPacketExtension("unknownSessionID", 0, "Data");
        Data data = new Data(dpe);
        data.setFrom(initiatorJID);
        data.setTo(targetJID);


        dataListener.processPacket(data);

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org.jivesoftware.smackx.bytestreams.ibb.DataListenerTest

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org.jivesoftware.smackx.bytestreams.ibb.InBandBytestreamSessionMessageTest

org.jivesoftware.smackx.bytestreams.ibb.InBandBytestreamSessionTest

org.jivesoftware.smackx.bytestreams.ibb.packet.DataPacketExtensionTest

org.jivesoftware.smackx.bytestreams.ibb.packet.DataTest

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