/// <summary>True upon a non-revoked certificate, an exception otherwise.</summary>
public bool Verify(X509Certificate x509, Brunet.Messaging.ISender sender)
{
Certificate cert = new Certificate(x509.RawData);
if(!_revoked_users.Contains(cert.Subject.Name)) {
return true;
}
throw new Exception("User has been revoked!");
}
/**
* Injects the binary data into the system.
* @param assembly_data pre-compiled data that will be injected into the
* system.
*/
protected void Inject(Brunet.Util.MemBlock assembly_data)
{
Assembly ass = Assembly.Load(assembly_data);
Type[] types = ass.GetTypes();
foreach(Type type in types) {
ass.CreateInstance(type.ToString(), false, BindingFlags.CreateInstance,
null, new object[1] {_node}, null, null);
}
}
public bool HandleReply(ReqrepManager man, ReqrepManager.ReqrepType rt,
int mid,
PType prot,
MemBlock payload,
ISender from,
Brunet.ReqrepManager.Statistics s,
object state)
{
Console.WriteLine("{0} got our message", from);
return false;
}
/// <summary>Receive data from the remote end point.</summary>
public void Push(Brunet.Util.MemBlock p)
{
if( 1 == _is_closed ) {
return;
}
if(Delay > 0) {
var timer = new Brunet.Util.SimpleTimer(DelayedPush, p, Delay, 0);
timer.Start();
} else {
ReceivedPacketEvent(p);
}
}
public BrunetDhtEntry(byte[] key, Brunet.DistributedServices.DhtGetResult dgr)
: this(key, dgr.value, dgr.age, dgr.ttl)
{
}
/**
<summary>Begins a new transfer state to the neighbor connected via con.
</summary>
<param name="con">The connection to the neigbhor we will be transferring
data to.</param>
<param name="ts">The table server we're providing the transfer for. C#
does not allow sub-class objects to have access to their parent objects
member variables, so we pass it in like this.</param>
<remarks>
Step 1:
Get all the keys between me and my new neighbor.
Step 2:
Get all values for those keys, we copy so that we don't worry about
changes to the dht during this interaction. This is only a pointer
copy and since we let the OS deal with removing the contents of an
entry, we don't need to make copies of the actual entry.
Step 3:
Generate another list of keys of up to max parallel transfers and begin
transferring, that way we do not need to lock access to the entry
enumerator until non-constructor puts.
Step 4:
End constructor, results from puts, cause the next entry to be sent.
*/
public TransferState(Brunet.Connections.Connection con, TableServer ts) {
this._ts = ts;
this._con = con;
// Get all keys between me and my new neighbor
LinkedList<MemBlock> keys;
lock(_ts._sync) {
keys = _ts._data.GetKeysBetween((AHAddress) _ts._node.Address,
(AHAddress) _con.Address);
}
if(Dht.DhtLog.Enabled) {
ProtocolLog.Write(Dht.DhtLog, String.Format(
"Starting transfer from {0} to {1}",
_ts._node.Address, _con.Address));
}
int total_entries = 0;
/* Get all values for those keys, we copy so that we don't worry about
* changes to the dht during this interaction. This is only a pointer
* copy and since we let the OS deal with removing the contents of an
* entry, we don't need to make copies of the actual entry.
*/
foreach(MemBlock key in keys) {
Entry[] entries;
lock(_ts._sync) {
LinkedList<Entry> llentries = _ts._data.GetEntries(key);
if(llentries == null) {
continue;
}
entries = new Entry[llentries.Count];
total_entries += llentries.Count;
llentries.CopyTo(entries, 0);
}
key_entries.AddLast(entries);
}
if(Dht.DhtLog.Enabled) {
ProtocolLog.Write(Dht.DhtLog, String.Format(
"Total keys: {0}, total entries: {1}.",
key_entries.Count, total_entries));
}
_entry_enumerator = GetEntryEnumerator();
/* Here we generate another list of keys that we would like to
* this is done here, so that we can lock up the _entry_enumerator
* only during this stage and not during the RpcManager.Invoke
*/
LinkedList<Entry> local_entries = new LinkedList<Entry>();
for(int i = 0; i < MAX_PARALLEL_TRANSFERS && _entry_enumerator.MoveNext(); i++) {
local_entries.AddLast((Entry) _entry_enumerator.Current);
}
foreach(Entry ent in local_entries) {
Channel queue = new Channel();
queue.CloseAfterEnqueue();
queue.CloseEvent += this.NextTransfer;
int ttl = (int) (ent.EndTime - DateTime.UtcNow).TotalSeconds;
try {
_ts._rpc.Invoke(_con.Edge, queue, "dht.PutHandler", ent.Key, ent.Value, ttl, false);
}
catch {
if(_con.Edge.IsClosed) {
_interrupted = true;
Done();
break;
}
}
}
}
public State UpdateReduce(Brunet.Util.Pair<object,bool> val, bool child_reduction) {
//If we can, pop off a result which we need to reduce:
ImmutableList<RpcResult> pend;
bool reduce;
bool done = Done || val.Second;
int child_reds = ChildReductions;
if( child_reduction ) {
child_reds++;
}
if( false == Pending.IsEmpty && false == done ) {
//More to reduce:
pend = Pending.Tail;
reduce = true;
}
else {
pend = ImmutableList<RpcResult>.Empty;
reduce = false;
if( false == done ) {
/*
* Check to see if we have hit all our children
* and we have already completed the map
*/
if( Tree != null ) {
done = (child_reds == Tree.Length);
}
else {
//We haven't yet gotten the Tree result back, done = false
}
}
}
return new State(MapResult, Tree, child_reds, val.First, done, pend, reduce);
}
public void Send(Brunet.Util.ICopyable data) {
State.Edge.Send(data);
}
/**
* @param peer_tid the TID that our Peer is using
* @param local_tid the TID that we use for this Request
* @param peer the peer Node in this transfer
* @param read_from the stream to read the data from
*/
public Request(short peer_tid, short local_tid, Opcode req_type, Brunet.Address peer,
System.IO.Stream read_from) {
}
public Request(short local_tid, short peer_tid, Opcode req_type, Brunet.Address peer,
string filename, long tsize) {
}
/**
* This method is called when there is a change in a Connection's status
*/
protected void StatusChangedHandler(Connection c,
Brunet.Collections.Pair<ConnectionState, ConnectionState> oldnew) {
//Console.Error.WriteLine("Status Changed:\n{0}\n{1}\n{2}\n{3}",c, c.Status, nltarget, nrtarget);
ConnectionList structs = _node.ConnectionTable.GetConnections(ConnectionType.Structured);
ConnectToNearer(structs, c.Address,
oldnew.Second.StatusMessage.Neighbors);
}
public ChatEventArgs(ISender source, Brunet.Chat.Message m)
{
_source = source;
_message = m;
}
/**
* The caller must make sure that this is synchronized, it is not
* a thread-safe method
* This method either writes the whole packet into the buffer space,
* or it throws an exception. There is no other case.
*/
public void WriteToBuffer(Brunet.Util.ICopyable p) {
int plength = p.CopyTo(_buffer, _written + 2);
if( plength > Int16.MaxValue ) {
throw new EdgeException(true,
String.Format("Packet too long: {0}",plength));
}
//
//The length at the beginning:
Brunet.Util.NumberSerializer.WriteShort((short)plength, _buffer, _written);
//Also write the length at the end so we can detect a bad packet
//as we have seen on planetlab:
Brunet.Util.NumberSerializer.WriteShort((short)plength, _buffer, _written + 2 + plength);
//If the buffer did not fill up, we have not yet thrown an exception:
_written += (plength + 4);
}
