1package eu.siacs.conversations.generator;
2
3import android.util.Log;
4
5import net.java.otr4j.OtrException;
6import net.java.otr4j.session.Session;
7
8import java.text.SimpleDateFormat;
9import java.util.Date;
10import java.util.Locale;
11import java.util.TimeZone;
12
13import eu.siacs.conversations.Config;
14import eu.siacs.conversations.crypto.axolotl.AxolotlService;
15import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
16import eu.siacs.conversations.entities.Account;
17import eu.siacs.conversations.entities.Conversation;
18import eu.siacs.conversations.entities.Message;
19import eu.siacs.conversations.services.XmppConnectionService;
20import eu.siacs.conversations.xml.Element;
21import eu.siacs.conversations.xmpp.chatstate.ChatState;
22import eu.siacs.conversations.xmpp.jid.Jid;
23import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
24
25public class MessageGenerator extends AbstractGenerator {
26 public MessageGenerator(XmppConnectionService service) {
27 super(service);
28 }
29
30 private MessagePacket preparePacket(Message message) {
31 Conversation conversation = message.getConversation();
32 Account account = conversation.getAccount();
33 MessagePacket packet = new MessagePacket();
34 if (conversation.getMode() == Conversation.MODE_SINGLE) {
35 packet.setTo(message.getCounterpart());
36 packet.setType(MessagePacket.TYPE_CHAT);
37 packet.addChild("markable", "urn:xmpp:chat-markers:0");
38 if (this.mXmppConnectionService.indicateReceived()) {
39 packet.addChild("request", "urn:xmpp:receipts");
40 }
41 } else if (message.getType() == Message.TYPE_PRIVATE) {
42 packet.setTo(message.getCounterpart());
43 packet.setType(MessagePacket.TYPE_CHAT);
44 if (this.mXmppConnectionService.indicateReceived()) {
45 packet.addChild("request", "urn:xmpp:receipts");
46 }
47 } else {
48 packet.setTo(message.getCounterpart().toBareJid());
49 packet.setType(MessagePacket.TYPE_GROUPCHAT);
50 }
51 packet.setFrom(account.getJid());
52 packet.setId(message.getUuid());
53 return packet;
54 }
55
56 public void addDelay(MessagePacket packet, long timestamp) {
57 final SimpleDateFormat mDateFormat = new SimpleDateFormat(
58 "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
59 mDateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
60 Element delay = packet.addChild("delay", "urn:xmpp:delay");
61 Date date = new Date(timestamp);
62 delay.setAttribute("stamp", mDateFormat.format(date));
63 }
64
65 public MessagePacket generateAxolotlChat(Message message, XmppAxolotlMessage axolotlMessage) {
66 MessagePacket packet = preparePacket(message);
67 if (axolotlMessage == null) {
68 return null;
69 }
70 packet.setAxolotlMessage(axolotlMessage.toXml());
71 return packet;
72 }
73
74 public MessagePacket generateOtrChat(Message message) {
75 Session otrSession = message.getConversation().getOtrSession();
76 if (otrSession == null) {
77 return null;
78 }
79 MessagePacket packet = preparePacket(message);
80 packet.addChild("private", "urn:xmpp:carbons:2");
81 packet.addChild("no-copy", "urn:xmpp:hints");
82 packet.addChild("no-permanent-store", "urn:xmpp:hints");
83 try {
84 String content;
85 if (message.hasFileOnRemoteHost()) {
86 content = message.getFileParams().url.toString();
87 } else {
88 content = message.getBody();
89 }
90 packet.setBody(otrSession.transformSending(content)[0]);
91 return packet;
92 } catch (OtrException e) {
93 return null;
94 }
95 }
96
97 public MessagePacket generateChat(Message message) {
98 MessagePacket packet = preparePacket(message);
99 if (message.hasFileOnRemoteHost()) {
100 packet.setBody(message.getFileParams().url.toString());
101 } else {
102 packet.setBody(message.getBody());
103 }
104 return packet;
105 }
106
107 public MessagePacket generatePgpChat(Message message) {
108 MessagePacket packet = preparePacket(message);
109 packet.setBody("This is an XEP-0027 encrypted message");
110 if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
111 packet.addChild("x", "jabber:x:encrypted").setContent(message.getEncryptedBody());
112 } else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
113 packet.addChild("x", "jabber:x:encrypted").setContent(message.getBody());
114 }
115 return packet;
116 }
117
118 public MessagePacket generateChatState(Conversation conversation) {
119 final Account account = conversation.getAccount();
120 MessagePacket packet = new MessagePacket();
121 packet.setTo(conversation.getJid().toBareJid());
122 packet.setFrom(account.getJid());
123 packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
124 return packet;
125 }
126
127 public MessagePacket confirm(final Account account, final Jid to, final String id) {
128 MessagePacket packet = new MessagePacket();
129 packet.setType(MessagePacket.TYPE_NORMAL);
130 packet.setTo(to);
131 packet.setFrom(account.getJid());
132 Element received = packet.addChild("displayed","urn:xmpp:chat-markers:0");
133 received.setAttribute("id", id);
134 return packet;
135 }
136
137 public MessagePacket conferenceSubject(Conversation conversation,
138 String subject) {
139 MessagePacket packet = new MessagePacket();
140 packet.setType(MessagePacket.TYPE_GROUPCHAT);
141 packet.setTo(conversation.getJid().toBareJid());
142 Element subjectChild = new Element("subject");
143 subjectChild.setContent(subject);
144 packet.addChild(subjectChild);
145 packet.setFrom(conversation.getAccount().getJid().toBareJid());
146 return packet;
147 }
148
149 public MessagePacket directInvite(final Conversation conversation, final Jid contact) {
150 MessagePacket packet = new MessagePacket();
151 packet.setType(MessagePacket.TYPE_NORMAL);
152 packet.setTo(contact);
153 packet.setFrom(conversation.getAccount().getJid());
154 Element x = packet.addChild("x", "jabber:x:conference");
155 x.setAttribute("jid", conversation.getJid().toBareJid().toString());
156 return packet;
157 }
158
159 public MessagePacket invite(Conversation conversation, Jid contact) {
160 MessagePacket packet = new MessagePacket();
161 packet.setTo(conversation.getJid().toBareJid());
162 packet.setFrom(conversation.getAccount().getJid());
163 Element x = new Element("x");
164 x.setAttribute("xmlns", "http://jabber.org/protocol/muc#user");
165 Element invite = new Element("invite");
166 invite.setAttribute("to", contact.toBareJid().toString());
167 x.addChild(invite);
168 packet.addChild(x);
169 return packet;
170 }
171
172 public MessagePacket received(Account account,
173 MessagePacket originalMessage, String namespace) {
174 MessagePacket receivedPacket = new MessagePacket();
175 receivedPacket.setType(MessagePacket.TYPE_NORMAL);
176 receivedPacket.setTo(originalMessage.getFrom());
177 receivedPacket.setFrom(account.getJid());
178 Element received = receivedPacket.addChild("received", namespace);
179 received.setAttribute("id", originalMessage.getId());
180 return receivedPacket;
181 }
182
183 public MessagePacket generateOtrError(Jid to, String id, String errorText) {
184 MessagePacket packet = new MessagePacket();
185 packet.setType(MessagePacket.TYPE_ERROR);
186 packet.setAttribute("id",id);
187 packet.setTo(to);
188 Element error = packet.addChild("error");
189 error.setAttribute("code","406");
190 error.setAttribute("type","modify");
191 error.addChild("not-acceptable","urn:ietf:params:xml:ns:xmpp-stanzas");
192 error.addChild("text").setContent("?OTR Error:" + errorText);
193 return packet;
194 }
195}