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 IqPacket response = packet.generateRespone(IqPacket.TYPE_ERROR);
48 Element error = response.addChild("error");
49 error.setAttribute("type", "cancel");
50 error.addChild("item-not-found",
51 "urn:ietf:params:xml:ns:xmpp-stanzas");
52 error.addChild("unknown-session", "urn:xmpp:jingle:errors:1");
53 account.getXmppConnection().sendIqPacket(response, null);
54 }
55 }
56
57 public JingleConnection createNewConnection(Message message) {
58 JingleConnection connection = new JingleConnection(this);
59 connection.init(message);
60 this.connections.add(connection);
61 return connection;
62 }
63
64 public JingleConnection createNewConnection(JinglePacket packet) {
65 JingleConnection connection = new JingleConnection(this);
66 this.connections.add(connection);
67 return connection;
68 }
69
70 public void finishConnection(JingleConnection connection) {
71 this.connections.remove(connection);
72 }
73
74 public void getPrimaryCandidate(Account account,
75 final OnPrimaryCandidateFound listener) {
76 if (!this.primaryCandidates.containsKey(account.getJid())) {
77 String xmlns = "http://jabber.org/protocol/bytestreams";
78 final String proxy = account.getXmppConnection()
79 .findDiscoItemByFeature(xmlns);
80 if (proxy != null) {
81 IqPacket iq = new IqPacket(IqPacket.TYPE_GET);
82 iq.setTo(proxy);
83 iq.query(xmlns);
84 account.getXmppConnection().sendIqPacket(iq,
85 new OnIqPacketReceived() {
86
87 @Override
88 public void onIqPacketReceived(Account account,
89 IqPacket packet) {
90 Element streamhost = packet
91 .query()
92 .findChild("streamhost",
93 "http://jabber.org/protocol/bytestreams");
94 if (streamhost != null) {
95 JingleCandidate candidate = new JingleCandidate(
96 nextRandomId(), true);
97 candidate.setHost(streamhost
98 .getAttribute("host"));
99 candidate.setPort(Integer
100 .parseInt(streamhost
101 .getAttribute("port")));
102 candidate
103 .setType(JingleCandidate.TYPE_PROXY);
104 candidate.setJid(proxy);
105 candidate.setPriority(655360 + 65535);
106 primaryCandidates.put(account.getJid(),
107 candidate);
108 listener.onPrimaryCandidateFound(true,
109 candidate);
110 } else {
111 listener.onPrimaryCandidateFound(false,
112 null);
113 }
114 }
115 });
116 } else {
117 listener.onPrimaryCandidateFound(false, null);
118 }
119
120 } else {
121 listener.onPrimaryCandidateFound(true,
122 this.primaryCandidates.get(account.getJid()));
123 }
124 }
125
126 public String nextRandomId() {
127 return new BigInteger(50, random).toString(32);
128 }
129
130 public void deliverIbbPacket(Account account, IqPacket packet) {
131 String sid = null;
132 Element payload = null;
133 if (packet.hasChild("open", "http://jabber.org/protocol/ibb")) {
134 payload = packet
135 .findChild("open", "http://jabber.org/protocol/ibb");
136 sid = payload.getAttribute("sid");
137 } else if (packet.hasChild("data", "http://jabber.org/protocol/ibb")) {
138 payload = packet
139 .findChild("data", "http://jabber.org/protocol/ibb");
140 sid = payload.getAttribute("sid");
141 }
142 if (sid != null) {
143 for (JingleConnection connection : connections) {
144 if (connection.getAccount() == account
145 && connection.hasTransportId(sid)) {
146 JingleTransport transport = connection.getTransport();
147 if (transport instanceof JingleInbandTransport) {
148 JingleInbandTransport inbandTransport = (JingleInbandTransport) transport;
149 inbandTransport.deliverPayload(packet, payload);
150 return;
151 }
152 }
153 }
154 Log.d(Config.LOGTAG,
155 "couldnt deliver payload: " + payload.toString());
156 } else {
157 Log.d(Config.LOGTAG, "no sid found in incomming ibb packet");
158 }
159 }
160
161 public void cancelInTransmission() {
162 for (JingleConnection connection : this.connections) {
163 if (connection.getJingleStatus() == JingleConnection.JINGLE_STATUS_TRANSMITTING) {
164 connection.cancel();
165 }
166 }
167 }
168}