1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
package eu.siacs.conversations.generator;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
import net.java.otr4j.OtrException;
import net.java.otr4j.session.Session;
import eu.siacs.conversations.entities.Account;
import eu.siacs.conversations.entities.Conversation;
import eu.siacs.conversations.entities.Message;
import eu.siacs.conversations.services.XmppConnectionService;
import eu.siacs.conversations.xml.Element;
import eu.siacs.conversations.xmpp.jid.Jid;
import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
public class MessageGenerator extends AbstractGenerator {
public MessageGenerator(XmppConnectionService service) {
super(service);
}
private MessagePacket preparePacket(Message message, boolean addDelay) {
Conversation conversation = message.getConversation();
Account account = conversation.getAccount();
MessagePacket packet = new MessagePacket();
if (conversation.getMode() == Conversation.MODE_SINGLE) {
packet.setTo(message.getCounterpart());
packet.setType(MessagePacket.TYPE_CHAT);
packet.addChild("markable", "urn:xmpp:chat-markers:0");
if (this.mXmppConnectionService.indicateReceived()) {
packet.addChild("request", "urn:xmpp:receipts");
}
} else if (message.getType() == Message.TYPE_PRIVATE) {
packet.setTo(message.getCounterpart());
packet.setType(MessagePacket.TYPE_CHAT);
} else {
packet.setTo(message.getCounterpart().toBareJid());
packet.setType(MessagePacket.TYPE_GROUPCHAT);
}
packet.setFrom(account.getJid());
packet.setId(message.getUuid());
if (addDelay) {
addDelay(packet, message.getTimeSent());
}
return packet;
}
private void addDelay(MessagePacket packet, long timestamp) {
final SimpleDateFormat mDateFormat = new SimpleDateFormat(
"yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
mDateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
Element delay = packet.addChild("delay", "urn:xmpp:delay");
Date date = new Date(timestamp);
delay.setAttribute("stamp", mDateFormat.format(date));
}
public MessagePacket generateOtrChat(Message message) {
return generateOtrChat(message, false);
}
public MessagePacket generateOtrChat(Message message, boolean addDelay) {
Session otrSession = message.getConversation().getOtrSession();
if (otrSession == null) {
return null;
}
MessagePacket packet = preparePacket(message, addDelay);
packet.addChild("private", "urn:xmpp:carbons:2");
packet.addChild("no-copy", "urn:xmpp:hints");
try {
packet.setBody(otrSession.transformSending(message.getBody()));
return packet;
} catch (OtrException e) {
return null;
}
}
public MessagePacket generateChat(Message message) {
return generateChat(message, false);
}
public MessagePacket generateChat(Message message, boolean addDelay) {
MessagePacket packet = preparePacket(message, addDelay);
packet.setBody(message.getBody());
return packet;
}
public MessagePacket generatePgpChat(Message message) {
return generatePgpChat(message, false);
}
public MessagePacket generatePgpChat(Message message, boolean addDelay) {
MessagePacket packet = preparePacket(message, addDelay);
packet.setBody("This is an XEP-0027 encryted message");
if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
packet.addChild("x", "jabber:x:encrypted").setContent(
message.getEncryptedBody());
} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
packet.addChild("x", "jabber:x:encrypted").setContent(
message.getBody());
}
return packet;
}
public MessagePacket generateNotAcceptable(MessagePacket origin) {
MessagePacket packet = generateError(origin);
Element error = packet.addChild("error");
error.setAttribute("type", "modify");
error.setAttribute("code", "406");
error.addChild("not-acceptable");
return packet;
}
private MessagePacket generateError(MessagePacket origin) {
MessagePacket packet = new MessagePacket();
packet.setId(origin.getId());
packet.setTo(origin.getFrom());
packet.setBody(origin.getBody());
packet.setType(MessagePacket.TYPE_ERROR);
return packet;
}
public MessagePacket confirm(final Account account, final Jid to, final String id) {
MessagePacket packet = new MessagePacket();
packet.setType(MessagePacket.TYPE_NORMAL);
packet.setTo(to);
packet.setFrom(account.getJid());
Element received = packet.addChild("displayed",
"urn:xmpp:chat-markers:0");
received.setAttribute("id", id);
return packet;
}
public MessagePacket conferenceSubject(Conversation conversation,
String subject) {
MessagePacket packet = new MessagePacket();
packet.setType(MessagePacket.TYPE_GROUPCHAT);
packet.setTo(conversation.getContactJid().toBareJid());
Element subjectChild = new Element("subject");
subjectChild.setContent(subject);
packet.addChild(subjectChild);
packet.setFrom(conversation.getAccount().getJid().toBareJid());
return packet;
}
public MessagePacket directInvite(final Conversation conversation, final Jid contact) {
MessagePacket packet = new MessagePacket();
packet.setType(MessagePacket.TYPE_NORMAL);
packet.setTo(contact);
packet.setFrom(conversation.getAccount().getJid());
Element x = packet.addChild("x", "jabber:x:conference");
x.setAttribute("jid", conversation.getContactJid().toBareJid().toString());
return packet;
}
public MessagePacket invite(Conversation conversation, Jid contact) {
MessagePacket packet = new MessagePacket();
packet.setTo(conversation.getContactJid().toBareJid());
packet.setFrom(conversation.getAccount().getJid());
Element x = new Element("x");
x.setAttribute("xmlns", "http://jabber.org/protocol/muc#user");
Element invite = new Element("invite");
invite.setAttribute("to", contact.toBareJid().toString());
x.addChild(invite);
packet.addChild(x);
return packet;
}
public MessagePacket received(Account account,
MessagePacket originalMessage, String namespace) {
MessagePacket receivedPacket = new MessagePacket();
receivedPacket.setType(MessagePacket.TYPE_NORMAL);
receivedPacket.setTo(originalMessage.getFrom());
receivedPacket.setFrom(account.getJid());
Element received = receivedPacket.addChild("received", namespace);
received.setAttribute("id", originalMessage.getId());
return receivedPacket;
}
}
|
