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 packet.addChild("no-permanent-storage", "urn:xmpp:hints");
84 try {
85 String content;
86 if (message.hasFileOnRemoteHost()) {
87 content = message.getFileParams().url.toString();
88 } else {
89 content = message.getBody();
90 }
91 packet.setBody(otrSession.transformSending(content)[0]);
92 return packet;
93 } catch (OtrException e) {
94 return null;
95 }
96 }
97
98 public MessagePacket generateChat(Message message) {
99 MessagePacket packet = preparePacket(message);
100 if (message.hasFileOnRemoteHost()) {
101 packet.setBody(message.getFileParams().url.toString());
102 } else {
103 packet.setBody(message.getBody());
104 }
105 return packet;
106 }
107
108 public MessagePacket generatePgpChat(Message message) {
109 MessagePacket packet = preparePacket(message);
110 packet.setBody("This is an XEP-0027 encrypted message");
111 if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
112 packet.addChild("x", "jabber:x:encrypted").setContent(message.getEncryptedBody());
113 } else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
114 packet.addChild("x", "jabber:x:encrypted").setContent(message.getBody());
115 }
116 return packet;
117 }
118
119 public MessagePacket generateChatState(Conversation conversation) {
120 final Account account = conversation.getAccount();
121 MessagePacket packet = new MessagePacket();
122 packet.setTo(conversation.getJid().toBareJid());
123 packet.setFrom(account.getJid());
124 packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
125 return packet;
126 }
127
128 public MessagePacket confirm(final Account account, final Jid to, final String id) {
129 MessagePacket packet = new MessagePacket();
130 packet.setType(MessagePacket.TYPE_NORMAL);
131 packet.setTo(to);
132 packet.setFrom(account.getJid());
133 Element received = packet.addChild("displayed","urn:xmpp:chat-markers:0");
134 received.setAttribute("id", id);
135 return packet;
136 }
137
138 public MessagePacket conferenceSubject(Conversation conversation,
139 String subject) {
140 MessagePacket packet = new MessagePacket();
141 packet.setType(MessagePacket.TYPE_GROUPCHAT);
142 packet.setTo(conversation.getJid().toBareJid());
143 Element subjectChild = new Element("subject");
144 subjectChild.setContent(subject);
145 packet.addChild(subjectChild);
146 packet.setFrom(conversation.getAccount().getJid().toBareJid());
147 return packet;
148 }
149
150 public MessagePacket directInvite(final Conversation conversation, final Jid contact) {
151 MessagePacket packet = new MessagePacket();
152 packet.setType(MessagePacket.TYPE_NORMAL);
153 packet.setTo(contact);
154 packet.setFrom(conversation.getAccount().getJid());
155 Element x = packet.addChild("x", "jabber:x:conference");
156 x.setAttribute("jid", conversation.getJid().toBareJid().toString());
157 return packet;
158 }
159
160 public MessagePacket invite(Conversation conversation, Jid contact) {
161 MessagePacket packet = new MessagePacket();
162 packet.setTo(conversation.getJid().toBareJid());
163 packet.setFrom(conversation.getAccount().getJid());
164 Element x = new Element("x");
165 x.setAttribute("xmlns", "http://jabber.org/protocol/muc#user");
166 Element invite = new Element("invite");
167 invite.setAttribute("to", contact.toBareJid().toString());
168 x.addChild(invite);
169 packet.addChild(x);
170 return packet;
171 }
172
173 public MessagePacket received(Account account,
174 MessagePacket originalMessage, String namespace) {
175 MessagePacket receivedPacket = new MessagePacket();
176 receivedPacket.setType(MessagePacket.TYPE_NORMAL);
177 receivedPacket.setTo(originalMessage.getFrom());
178 receivedPacket.setFrom(account.getJid());
179 Element received = receivedPacket.addChild("received", namespace);
180 received.setAttribute("id", originalMessage.getId());
181 return receivedPacket;
182 }
183
184 public MessagePacket generateOtrError(Jid to, String id, String errorText) {
185 MessagePacket packet = new MessagePacket();
186 packet.setType(MessagePacket.TYPE_ERROR);
187 packet.setAttribute("id",id);
188 packet.setTo(to);
189 Element error = packet.addChild("error");
190 error.setAttribute("code","406");
191 error.setAttribute("type","modify");
192 error.addChild("not-acceptable","urn:ietf:params:xml:ns:xmpp-stanzas");
193 error.addChild("text").setContent("?OTR Error:" + errorText);
194 return packet;
195 }
196}