1package eu.siacs.conversations.xmpp.jingle;
2
3import java.math.BigInteger;
4import java.security.SecureRandom;
5import java.util.HashMap;
6import java.util.List;
7import java.util.concurrent.CopyOnWriteArrayList;
8import android.annotation.SuppressLint;
9import android.util.Log;
10import eu.siacs.conversations.Config;
11import eu.siacs.conversations.entities.Account;
12import eu.siacs.conversations.entities.Message;
13import eu.siacs.conversations.services.AbstractConnectionManager;
14import eu.siacs.conversations.services.XmppConnectionService;
15import eu.siacs.conversations.xml.Element;
16import eu.siacs.conversations.xmpp.OnIqPacketReceived;
17import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
18import eu.siacs.conversations.xmpp.stanzas.IqPacket;
19
20public class JingleConnectionManager extends AbstractConnectionManager {
21 private List<JingleConnection> connections = new CopyOnWriteArrayList<JingleConnection>();
22
23 private HashMap<String, JingleCandidate> primaryCandidates = new HashMap<String, JingleCandidate>();
24
25 @SuppressLint("TrulyRandom")
26 private SecureRandom random = new SecureRandom();
27
28 public JingleConnectionManager(XmppConnectionService service) {
29 super(service);
30 }
31
32 public void deliverPacket(Account account, JinglePacket packet) {
33 if (packet.isAction("session-initiate")) {
34 JingleConnection connection = new JingleConnection(this);
35 connection.init(account, packet);
36 connections.add(connection);
37 } else {
38 for (JingleConnection connection : connections) {
39 if (connection.getAccount() == account
40 && connection.getSessionId().equals(
41 packet.getSessionId())
42 && connection.getCounterPart().equals(packet.getFrom())) {
43 connection.deliverPacket(packet);
44 return;
45 }
46 }
47 account.getXmppConnection().sendIqPacket(
48 packet.generateRespone(IqPacket.TYPE_ERROR), null);
49 }
50 }
51
52 public JingleConnection createNewConnection(Message message) {
53 JingleConnection connection = new JingleConnection(this);
54 connection.init(message);
55 this.connections.add(connection);
56 return connection;
57 }
58
59 public JingleConnection createNewConnection(JinglePacket packet) {
60 JingleConnection connection = new JingleConnection(this);
61 this.connections.add(connection);
62 return connection;
63 }
64
65 public void finishConnection(JingleConnection connection) {
66 this.connections.remove(connection);
67 }
68
69 public void getPrimaryCandidate(Account account,
70 final OnPrimaryCandidateFound listener) {
71 if (!this.primaryCandidates.containsKey(account.getJid())) {
72 String xmlns = "http://jabber.org/protocol/bytestreams";
73 final String proxy = account.getXmppConnection()
74 .findDiscoItemByFeature(xmlns);
75 if (proxy != null) {
76 IqPacket iq = new IqPacket(IqPacket.TYPE_GET);
77 iq.setTo(proxy);
78 iq.query(xmlns);
79 account.getXmppConnection().sendIqPacket(iq,
80 new OnIqPacketReceived() {
81
82 @Override
83 public void onIqPacketReceived(Account account,
84 IqPacket packet) {
85 Element streamhost = packet
86 .query()
87 .findChild("streamhost",
88 "http://jabber.org/protocol/bytestreams");
89 if (streamhost != null) {
90 JingleCandidate candidate = new JingleCandidate(
91 nextRandomId(), true);
92 candidate.setHost(streamhost
93 .getAttribute("host"));
94 candidate.setPort(Integer
95 .parseInt(streamhost
96 .getAttribute("port")));
97 candidate
98 .setType(JingleCandidate.TYPE_PROXY);
99 candidate.setJid(proxy);
100 candidate.setPriority(655360 + 65535);
101 primaryCandidates.put(account.getJid(),
102 candidate);
103 listener.onPrimaryCandidateFound(true,
104 candidate);
105 } else {
106 listener.onPrimaryCandidateFound(false,
107 null);
108 }
109 }
110 });
111 } else {
112 listener.onPrimaryCandidateFound(false, null);
113 }
114
115 } else {
116 listener.onPrimaryCandidateFound(true,
117 this.primaryCandidates.get(account.getJid()));
118 }
119 }
120
121 public String nextRandomId() {
122 return new BigInteger(50, random).toString(32);
123 }
124
125 public void deliverIbbPacket(Account account, IqPacket packet) {
126 String sid = null;
127 Element payload = null;
128 if (packet.hasChild("open", "http://jabber.org/protocol/ibb")) {
129 payload = packet
130 .findChild("open", "http://jabber.org/protocol/ibb");
131 sid = payload.getAttribute("sid");
132 } else if (packet.hasChild("data", "http://jabber.org/protocol/ibb")) {
133 payload = packet
134 .findChild("data", "http://jabber.org/protocol/ibb");
135 sid = payload.getAttribute("sid");
136 }
137 if (sid != null) {
138 for (JingleConnection connection : connections) {
139 if (connection.getAccount() == account
140 && connection.hasTransportId(sid)) {
141 JingleTransport transport = connection.getTransport();
142 if (transport instanceof JingleInbandTransport) {
143 JingleInbandTransport inbandTransport = (JingleInbandTransport) transport;
144 inbandTransport.deliverPayload(packet, payload);
145 return;
146 }
147 }
148 }
149 Log.d(Config.LOGTAG,
150 "couldnt deliver payload: " + payload.toString());
151 } else {
152 Log.d(Config.LOGTAG, "no sid found in incomming ibb packet");
153 }
154 }
155
156 public void cancelInTransmission() {
157 for (JingleConnection connection : this.connections) {
158 if (connection.getJingleStatus() == JingleConnection.JINGLE_STATUS_TRANSMITTING) {
159 connection.cancel();
160 }
161 }
162 }
163}