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Make the group field of messages optional.

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Private messages have no group.
This commit is contained in:
akwizgran
2011-09-13 14:17:22 +01:00
parent 1d25b5a92e
commit 2858c139fa
4 changed files with 29 additions and 12 deletions
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22
components/net/sf/briar/protocol/MessageReader.java
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@@ -12,6 +12,7 @@ import net.sf.briar.api.crypto.KeyParser;
import net.sf.briar.api.protocol.Author;
import net.sf.briar.api.protocol.AuthorId;
import net.sf.briar.api.protocol.Group;
import net.sf.briar.api.protocol.GroupId;
import net.sf.briar.api.protocol.Message;
import net.sf.briar.api.protocol.MessageId;
import net.sf.briar.api.protocol.ProtocolConstants;
@@ -57,10 +58,15 @@ class MessageReader implements ObjectReader<Message> {
parent = r.readUserDefined(Types.MESSAGE_ID, MessageId.class);
r.removeObjectReader(Types.MESSAGE_ID);
}
// Read the group
r.addObjectReader(Types.GROUP, groupReader);
Group group = r.readUserDefined(Types.GROUP, Group.class);
r.removeObjectReader(Types.GROUP);
// Read the group, if there is one
Group group = null;
if(r.hasNull()) {
r.readNull();
} else {
r.addObjectReader(Types.GROUP, groupReader);
group = r.readUserDefined(Types.GROUP, Group.class);
r.removeObjectReader(Types.GROUP);
}
// Read the author, if there is one
Author author = null;
if(r.hasNull()) {
@@ -85,7 +91,7 @@ class MessageReader implements ObjectReader<Message> {
int signedByGroup = (int) counting.getCount();
// Read the group's signature, if there is one
byte[] groupSig = null;
if(group.getPublicKey() == null) r.readNull();
if(group == null || group.getPublicKey() == null) r.readNull();
else groupSig = r.readBytes(Message.MAX_SIGNATURE_LENGTH);
// That's all, folks
r.removeConsumer(counting);
@@ -103,7 +109,7 @@ class MessageReader implements ObjectReader<Message> {
}
}
// Verify the group's signature, if there is one
if(group.getPublicKey() != null) {
if(group != null && group.getPublicKey() != null) {
try {
PublicKey k = keyParser.parsePublicKey(group.getPublicKey());
signature.initVerify(k);
@@ -118,7 +124,7 @@ class MessageReader implements ObjectReader<Message> {
messageDigest.update(raw);
MessageId id = new MessageId(messageDigest.digest());
AuthorId authorId = author == null ? null : author.getId();
return new MessageImpl(id, parent, group.getId(), authorId, timestamp,
raw);
GroupId groupId = group == null ? null : group.getId();
return new MessageImpl(id, parent, groupId, authorId, timestamp, raw);
}
}