@Override
public DD_SK decode(Decoder dec) throws ASN1DecoderFail {
String default_orgGID = null;
String default_orgGIDH = null;
Decoder d = dec.getContent();
if (d.getTypeByte() == DD.TAG_AP0)
version = d.getFirstObject(true).getInteger(DD.TAG_AP0).intValue();
if (d.getTypeByte() == DD.TAG_AC0)
sk = d.getFirstObject(true).getSequenceOfAL(DD_SK_Entry.getASN1Tag(), new DD_SK_Entry());
if (d.getTypeByte() == DD.TAG_AC1)
peer = d.getFirstObject(true).getSequenceOfAL(D_Peer.getASN1Type(), D_Peer.getEmpty());
if (d.getTypeByte() == DD.TAG_AC2) {
org =
d.getFirstObject(true)
.getSequenceOfAL(D_Organization.getASN1Type(), D_Organization.getEmpty());
if (org.size() == 1) {
default_orgGID = org.get(0).getGID();
default_orgGIDH = org.get(0).getGIDH();
if (DEBUG)
System.out.println(
"DD_SK: has a GID for orgs: " + default_orgGID + " H=" + default_orgGIDH);
}
}
if (d.getTypeByte() == DD.TAG_AC3)
neigh =
d.getFirstObject(true)
.getSequenceOfAL(D_Neighborhood.getASN1Type(), D_Neighborhood.getEmpty());
if (d.getTypeByte() == DD.TAG_AC4)
constit =
d.getFirstObject(true)
.getSequenceOfAL(D_Constituent.getASN1Type(), D_Constituent.getEmpty());
if (d.getTypeByte() == DD.TAG_AC5)
witn = d.getFirstObject(true).getSequenceOfAL(D_Witness.getASN1Type(), D_Witness.getEmpty());
if (d.getTypeByte() == DD.TAG_AC6) {
moti = d.getFirstObject(true).getSequenceOfAL(D_Motion.getASN1Type(), D_Motion.getEmpty());
for (D_Motion m : moti) {
if (m.getOrganizationGIDH() == null) {
if (_DEBUG) System.out.println("DD_SK: put a GIDH for " + m);
m.setOrganizationGID(default_orgGIDH);
if (_DEBUG) System.out.println("DD_SK: did put a GIDH for " + m);
} else if (DEBUG) System.out.println("DD_SK: had a GIDH for " + m);
}
}
if (d.getTypeByte() == DD.TAG_AC7)
just =
d.getFirstObject(true)
.getSequenceOfAL(D_Justification.getASN1Type(), D_Justification.getEmpty());
if (d.getTypeByte() == DD.TAG_AC8)
vote = d.getFirstObject(true).getSequenceOfAL(D_Vote.getASN1Type(), D_Vote.getEmpty());
if (d.getTypeByte() == DD.TAG_AC10)
tran =
d.getFirstObject(true)
.getSequenceOfAL(D_Translations.getASN1Type(), D_Translations.getEmpty());
if (d.getTypeByte() == DD.TAG_AP1) sender = D_Peer.getEmpty().decode(d.getFirstObject(true));
if (d.getTypeByte() == DD.TAG_AP2) signature = d.getFirstObject(true).getBytes(DD.TAG_AP2);
return this;
}
@Override
public Encoder getEncoder() {
Encoder enc = getSignEncoder();
if (sender != null) enc.addToSequence(sender.getEncoder().setASN1Type(DD.TAG_AP1));
if (signature != null) enc.addToSequence(new Encoder(signature).setASN1Type(DD.TAG_AP2));
enc.setASN1Type(Encoder.CLASS_APPLICATION, Encoder.PC_CONSTRUCTED, getASN1Tag());
return enc;
}
@Override
public String getNiceDescription() {
String result = "";
for (DD_SK_Entry _sk : sk)
result += "SK[: sk=" + _sk.name + "]"; // Util.concat(sk, ";;;", "NULL");
for (D_Peer _peer : peer) result += " Safe=[" + _peer.getName() + "]";
for (D_Organization _org : org) result += " Org=[" + _org.getName() + "]";
for (D_Constituent _constit : constit) result += " Cons=[" + _constit.getNameFull() + "]";
for (D_Witness _witn : witn) result += " Witn=[" + _witn.witnessed_global_constituentID + "]";
for (D_Motion _moti : moti) result += " Moti=[" + _moti.getTitleStrOrMy() + "]";
for (D_Justification _just : just) result += " Just=[" + _just.getTitleStrOrMy() + "]";
for (D_News _news : news) result += " News=[" + _news.getTitleStrOrMy() + "]";
for (D_Vote _vote : vote)
result += " Vote=[" + _vote.getChoice() + " " + _vote.getMotionGID() + "]";
// to implement
if (tran.size() > 0) result += " tran=" + Util.concat(tran, ",,,", "NULL");
result += "]";
return result;
}
/**
* Sets the sender and computes the signature
*
* @param me
*/
public void sign_and_set_sender(D_Peer me) {
if (me == null) {
sender = null;
signature = null;
return;
}
// signature = null;
byte[] msg = this.getSignEncoder().getBytes();
signature = Util.sign(msg, me.getSK());
this.sender = me;
}
/**
* @param message
* @param peerGID
* @param peer
* @return the message actually sent (and its sequence numbers)
*/
public static ChatMessage sendMessage(String message, String peerGID, D_Peer peer) {
if (DEBUG) System.out.println("PLUGIN CHAT: Main: sendMessage enter: " + message);
if (peer != null && peerGID == null) peerGID = peer.getGID();
// create a hashtable where ht(key=peerGID ) ==> cm (chatMessage)
ChannelDataOut channeldata_out = ChannelDataOut.get(peerGID);
ChannelDataIn channeldata_in = ChannelDataIn.get(peerGID);
if (DEBUG)
System.out.println("PLUGIN CHAT: Main: sendMessage got channel out: " + channeldata_out);
if (DEBUG)
System.out.println("PLUGIN CHAT: Main: sendMessage got channel in: " + channeldata_in);
ChatMessage cm = new ChatMessage();
cm.session_id = channeldata_out.getSessionID();
// cm.session_id_ack = cmsg.session_id;
cm.message_type = ChatMessage.MT_TEXT;
cm.first_in_this_sequence =
channeldata_out.getFirstInSequence(); // cmsg.first_in_this_sequence;
ChatElem ce = new ChatElem();
ce.type = 0; // name
ce.val = Main.name;
cm.content = new ArrayList<ChatElem>();
cm.content.add(ce);
cm.msg = message;
// first time message to this peer
cm.session_id_ack = channeldata_in.getSessionID();
cm.last_acknowledged_in_sequence = channeldata_in.getLastInSequence();
cm.received_out_of_sequence = channeldata_in.getOutOfSequence();
cm.sequence = channeldata_out.getNextSequence();
// msgTrackingSend.put(peer_GID, cm); // only store the last message info for each peer
// save to DB for history ( peer_GID:sender(myself): Date/Time : msg as object )
if (DEBUG) System.out.println("PLUGIN CHAT: Main: send: " + cm);
// confirm the sending into the GUI
receiver.addSentMessage(cm, peerGID, channeldata_out);
byte[] _msg = cm.encode();
net.ddp2p.common.plugin_data.PluginRequest envelope =
new net.ddp2p.common.plugin_data.PluginRequest();
envelope.msg = _msg;
envelope.peer_GID = peerGID; // destination
envelope.type = net.ddp2p.common.plugin_data.PluginRequest.MSG;
envelope.plugin_GID = (String) Main.getPluginDataHashtable().get("plugin_GID");
if (DEBUG) System.out.println("PLUGIN CHAT: Main: send envelope: " + envelope);
Main.enqueue(envelope);
if (DEBUG) System.out.println("PLUGIN CHAT: Main: sendMessage exit");
return cm;
}
/**
* Verifies the signature. Always false if there is no sender.
*
* @return
*/
public boolean verify() {
if (sender == null) return false;
byte[] msg = this.getSignEncoder().getBytes();
return Util.verifySign(msg, sender.getPK(), signature);
}