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
|
package org.sufficientlysecure.keychain.pgp.linked;
import org.spongycastle.bcpg.UserAttributeSubpacket;
import org.spongycastle.util.Strings;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.pgp.WrappedUserAttribute;
import org.sufficientlysecure.keychain.util.Log;
import java.io.IOException;
import java.net.URI;
import java.nio.ByteBuffer;
import java.util.Arrays;
import android.content.Context;
import android.support.annotation.DrawableRes;
public class LinkedIdentity extends RawLinkedIdentity {
public final LinkedResource mResource;
protected LinkedIdentity(int nonce, URI uri, LinkedResource resource) {
super(nonce, uri);
if (resource == null) {
throw new AssertionError("resource must not be null in a LinkedIdentity!");
}
mResource = resource;
}
public static RawLinkedIdentity fromAttributeData(byte[] data) throws IOException {
WrappedUserAttribute att = WrappedUserAttribute.fromData(data);
byte[][] subpackets = att.getSubpackets();
if (subpackets.length >= 1) {
return fromSubpacketData(subpackets[0]);
}
throw new IOException("no subpacket data");
}
/** This method parses a linked id from a UserAttributeSubpacket, or returns null if the
* subpacket can not be parsed as a valid linked id.
*/
static RawLinkedIdentity fromAttributeSubpacket(UserAttributeSubpacket subpacket) {
if (subpacket.getType() != 100) {
return null;
}
byte[] data = subpacket.getData();
return fromSubpacketData(data);
}
static RawLinkedIdentity fromSubpacketData(byte[] data) {
try {
int nonce = ByteBuffer.wrap(data).getInt();
String uriStr = Strings.fromUTF8ByteArray(Arrays.copyOfRange(data, 4, data.length));
URI uri = URI.create(uriStr);
LinkedResource res = LinkedResource.fromUri(uri);
if (res == null) {
return new RawLinkedIdentity(nonce, uri);
}
return new LinkedIdentity(nonce, uri, res);
} catch (IllegalArgumentException e) {
Log.e(Constants.TAG, "error parsing uri in (suspected) linked id packet");
return null;
}
}
public static RawLinkedIdentity fromResource (LinkedCookieResource res, int nonce) {
return new RawLinkedIdentity(nonce, res.toUri());
}
public @DrawableRes int getDisplayIcon() {
return mResource.getDisplayIcon();
}
public String getDisplayTitle(Context context) {
return mResource.getDisplayTitle(context);
}
public String getDisplayComment(Context context) {
return mResource.getDisplayComment(context);
}
}
|
