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
|
package de.pixart.messenger.generator;
import android.util.Base64;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Locale;
import java.util.TimeZone;
import de.pixart.messenger.Config;
import de.pixart.messenger.R;
import de.pixart.messenger.crypto.axolotl.AxolotlService;
import de.pixart.messenger.entities.Account;
import de.pixart.messenger.services.XmppConnectionService;
import de.pixart.messenger.utils.Namespace;
import de.pixart.messenger.utils.PhoneHelper;
import de.pixart.messenger.xmpp.XmppConnection;
import de.pixart.messenger.xmpp.jingle.stanzas.Content;
public abstract class AbstractGenerator {
private final String[] FEATURES = {
"urn:xmpp:jingle:1",
Content.Version.FT_3.getNamespace(),
Content.Version.FT_4.getNamespace(),
Content.Version.FT_5.getNamespace(),
Namespace.JINGLE_TRANSPORTS_S5B,
Namespace.JINGLE_TRANSPORTS_IBB,
Namespace.JINGLE_ENCRYPTED_TRANSPORT,
Namespace.JINGLE_ENCRYPTED_TRANSPORT_OMEMO,
"http://jabber.org/protocol/muc",
"jabber:x:conference",
Namespace.OOB,
"http://jabber.org/protocol/caps",
"http://jabber.org/protocol/disco#info",
"urn:xmpp:avatar:metadata+notify",
Namespace.NICK + "+notify",
"urn:xmpp:ping",
"jabber:iq:version",
"http://jabber.org/protocol/chatstates"
};
private final String[] MESSAGE_CONFIRMATION_FEATURES = {
"urn:xmpp:chat-markers:0",
"urn:xmpp:receipts"
};
private final String[] MESSAGE_CORRECTION_FEATURES = {
"urn:xmpp:message-correct:0"
};
private final String[] PRIVACY_SENSITIVE = {
"urn:xmpp:time" //XEP-0202: Entity Time leaks time zone
};
private final String[] OTR = {
"urn:xmpp:otr:0"
};
private String mVersion = null;
private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
protected XmppConnectionService mXmppConnectionService;
AbstractGenerator(XmppConnectionService service) {
this.mXmppConnectionService = service;
}
String getIdentityVersion() {
if (mVersion == null) {
this.mVersion = PhoneHelper.getVersionName(mXmppConnectionService);
}
return this.mVersion;
}
public String getIdentityName() {
return mXmppConnectionService.getString(R.string.app_name) + ' ' + getIdentityVersion();
}
public String getUserAgent() {
return mXmppConnectionService.getString(R.string.app_name) + '/' + getIdentityVersion();
}
String getIdentityType() {
if ("chromium".equals(android.os.Build.BRAND)) {
return "pc";
} else {
return mXmppConnectionService.getString(R.string.default_resource).toLowerCase();
}
}
String getCapHash(final Account account) {
StringBuilder s = new StringBuilder();
s.append("client/").append(getIdentityType()).append("//").append(getIdentityName()).append('<');
MessageDigest md;
try {
md = MessageDigest.getInstance("SHA-1");
} catch (NoSuchAlgorithmException e) {
return null;
}
for (String feature : getFeatures(account)) {
s.append(feature).append('<');
}
final byte[] sha1 = md.digest(s.toString().getBytes());
return Base64.encodeToString(sha1, Base64.NO_WRAP);
}
public static String getTimestamp(long time) {
DATE_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));
return DATE_FORMAT.format(time);
}
public List<String> getFeatures(Account account) {
final XmppConnection connection = account.getXmppConnection();
final ArrayList<String> features = new ArrayList<>(Arrays.asList(FEATURES));
if (mXmppConnectionService.confirmMessages()) {
features.addAll(Arrays.asList(MESSAGE_CONFIRMATION_FEATURES));
}
if (mXmppConnectionService.allowMessageCorrection()) {
features.addAll(Arrays.asList(MESSAGE_CORRECTION_FEATURES));
}
if (Config.supportOmemo()) {
features.add(AxolotlService.PEP_DEVICE_LIST_NOTIFY);
}
if (!mXmppConnectionService.useTorToConnect() && !account.isOnion()) {
features.addAll(Arrays.asList(PRIVACY_SENSITIVE));
}
if (Config.supportOtr()) {
features.addAll(Arrays.asList(OTR));
}
if (mXmppConnectionService.broadcastLastActivity()) {
features.add(Namespace.IDLE);
}
if (connection != null && connection.getFeatures().bookmarks2()) {
features.add(Namespace.BOOKMARKS + "+notify");
} else {
features.add(Namespace.BOOKMARKS + "+notify");
}
Collections.sort(features);
return features;
}
}
|
