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.entities.Account;
11import eu.siacs.conversations.entities.Message;
12import eu.siacs.conversations.services.XmppConnectionService;
13import eu.siacs.conversations.xml.Element;
14import eu.siacs.conversations.xmpp.OnIqPacketReceived;
15import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
16import eu.siacs.conversations.xmpp.stanzas.IqPacket;
17
18public class JingleConnectionManager {
19
20 private XmppConnectionService xmppConnectionService;
21
22 private List<JingleConnection> connections = new CopyOnWriteArrayList<JingleConnection>();
23
24 private HashMap<String, JingleCandidate> primaryCandidates = new HashMap<String, JingleCandidate>();
25
26 @SuppressLint("TrulyRandom")
27 private SecureRandom random = new SecureRandom();
28
29 public JingleConnectionManager(XmppConnectionService service) {
30 this.xmppConnectionService = service;
31 }
32
33 public void deliverPacket(Account account, JinglePacket packet) {
34 if (packet.isAction("session-initiate")) {
35 JingleConnection connection = new JingleConnection(this);
36 connection.init(account,packet);
37 connections.add(connection);
38 } else {
39 for (JingleConnection connection : connections) {
40 if (connection.getAccountJid().equals(account.getFullJid()) && connection
41 .getSessionId().equals(packet.getSessionId()) && connection
42 .getCounterPart().equals(packet.getFrom())) {
43 connection.deliverPacket(packet);
44 return;
45 }
46 }
47 account.getXmppConnection().sendIqPacket(packet.generateRespone(IqPacket.TYPE_ERROR), null);
48 }
49 }
50
51 public JingleConnection createNewConnection(Message message) {
52 JingleConnection connection = new JingleConnection(this);
53 connection.init(message);
54 this.connections.add(connection);
55 return connection;
56 }
57
58 public JingleConnection createNewConnection(JinglePacket packet) {
59 JingleConnection connection = new JingleConnection(this);
60 this.connections.add(connection);
61 return connection;
62 }
63
64 public void finishConnection(JingleConnection connection) {
65 this.connections.remove(connection);
66 }
67
68 public XmppConnectionService getXmppConnectionService() {
69 return this.xmppConnectionService;
70 }
71
72 public void getPrimaryCandidate(Account account,
73 final OnPrimaryCandidateFound listener) {
74 if (!this.primaryCandidates.containsKey(account.getJid())) {
75 String xmlns = "http://jabber.org/protocol/bytestreams";
76 final String proxy = account.getXmppConnection()
77 .findDiscoItemByFeature(xmlns);
78 if (proxy != null) {
79 IqPacket iq = new IqPacket(IqPacket.TYPE_GET);
80 iq.setTo(proxy);
81 iq.query(xmlns);
82 account.getXmppConnection().sendIqPacket(iq,
83 new OnIqPacketReceived() {
84
85 @Override
86 public void onIqPacketReceived(Account account,
87 IqPacket packet) {
88 Element streamhost = packet
89 .query()
90 .findChild("streamhost",
91 "http://jabber.org/protocol/bytestreams");
92 if (streamhost != null) {
93 JingleCandidate candidate = new JingleCandidate(nextRandomId(),true);
94 candidate.setHost(streamhost.getAttribute("host"));
95 candidate.setPort(Integer.parseInt(streamhost.getAttribute("port")));
96 candidate.setType(JingleCandidate.TYPE_PROXY);
97 candidate.setJid(proxy);
98 candidate.setPriority(655360+65535);
99 primaryCandidates.put(account.getJid(),
100 candidate);
101 listener.onPrimaryCandidateFound(true,
102 candidate);
103 } else {
104 listener.onPrimaryCandidateFound(false,
105 null);
106 }
107 }
108 });
109 } else {
110 listener.onPrimaryCandidateFound(false, null);
111 }
112
113 } else {
114 listener.onPrimaryCandidateFound(true,
115 this.primaryCandidates.get(account.getJid()));
116 }
117 }
118
119 public String nextRandomId() {
120 return new BigInteger(50, random).toString(32);
121 }
122
123 public long getAutoAcceptFileSize() {
124 String config = this.xmppConnectionService.getPreferences().getString("auto_accept_file_size", "524288");
125 try {
126 return Long.parseLong(config);
127 } catch (NumberFormatException e) {
128 return 524288;
129 }
130 }
131
132 public void deliverIbbPacket(Account account, IqPacket packet) {
133 String sid = null;
134 Element payload = null;
135 if (packet.hasChild("open","http://jabber.org/protocol/ibb")) {
136 payload = packet.findChild("open","http://jabber.org/protocol/ibb");
137 sid = payload.getAttribute("sid");
138 } else if (packet.hasChild("data","http://jabber.org/protocol/ibb")) {
139 payload = packet.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.hasTransportId(sid)) {
145 JingleTransport transport = connection.getTransport();
146 if (transport instanceof JingleInbandTransport) {
147 JingleInbandTransport inbandTransport = (JingleInbandTransport) transport;
148 inbandTransport.deliverPayload(packet,payload);
149 return;
150 }
151 }
152 }
153 Log.d("xmppService","couldnt deliver payload: "+payload.toString());
154 } else {
155 Log.d("xmppService","no sid found in incomming ibb packet");
156 }
157 }
158
159 public void cancelInTransmission() {
160 for(JingleConnection connection : this.connections) {
161 if (connection.getStatus() == JingleConnection.STATUS_TRANSMITTING) {
162 connection.cancel();
163 }
164 }
165 }
166}