private void keepOrForward(QueryByFile query)
{
RemoteAsyncShareObjectDelegate del;
ServerToServerServices friend;
Friend predecessor = null;
QueryByFile q1;
List<String> contacting = new List<string>();
contacting.Add(ServerApp._myUri);
if (ServerApp._user.Username[0] == query.Name[0])
{
//should store in redirection
MessageBox.Show(ServerApp._user.Username + " will put uri on redirection list. (obj=now)");
ServerApp._user.addRedirection(new RedirectionFile(query.Name, query.Uris.ElementAt(0)));
return;
}
else
{
foreach (Friend node in ServerApp._user.Friends)
if (!node.SucessorSwarm)
{
predecessor = node;
break;
}
if (predecessor == null)
{
MessageBox.Show(ServerApp._user.Username + " says : Inconsistent routing table");
return;
}
if (predecessor.Name[0] > ServerApp._user.Username[0] && query.Name[0] > predecessor.Name[0])
{
//should store in redirection
MessageBox.Show(ServerApp._user.Username + " will put uri on redirection list. (before>now && obj>before)");
ServerApp._user.addRedirection(new RedirectionFile(query.Name, query.Uris.ElementAt(0)));
return;
}
if (query.Name[0] > predecessor.Name[0] && query.Name[0] < ServerApp._user.Username[0])
{
//should store in redirection
MessageBox.Show(ServerApp._user.Username + " will put uri on redirection list. (obj>before && obj<now)");
ServerApp._user.addRedirection(new RedirectionFile(query.Name, query.Uris.ElementAt(0)));
return;
}
//if(lower[0] >= ServerApp._user.Username[0])
//should continue sending
foreach (Friend f in ServerApp._user.Friends)
{
if (f.Uris.ElementAt(0) != null && f.SucessorSwarm)
{
if (f.Uris.ElementAt(0).CompareTo(query.ContactingServerUri.ElementAt(0)) != 0)
{
MessageBox.Show(ServerApp._user.Username + " sending a request to share to " + f.Name);
friend = ((ServerToServerServices)Activator.GetObject(typeof(ServerToServerServices),
f.Uris.ElementAt(0) + "/" + ServicesNames.ServerToServerServicesName));
q1 = new QueryByFile(query.Name, query.Uris, contacting,
(ServerApp._user.Username[0] > query.LowestId[0]) ? query.LowestId : ServerApp._user.Username, query.Id);
byte[] data = Encoding.Default.GetBytes(q1.ToString());
byte[] signature = ServerApp._rsaProvider.SignData(data, "SHA1");
SignedQueryByFile signedForwardQuery = new SignedQueryByFile(q1, signature);
del = new RemoteAsyncShareObjectDelegate(friend.shareObject);
del.BeginInvoke(signedForwardQuery, null, null);
}
}
}
}
}
public void shareObject(ObjectFile file)
{
ServerToServerServices friend;
RemoteAsyncShareObjectDelegate del;
ServerApp._user.addObject(file);
List<String> uri = new List<string>();
List<String> contacting = new List<string>();
contacting.Add(ServerApp._primaryURI);
uri.Add(ServerApp._primaryURI);
QueryByFile query = new QueryByFile(file.FileName, uri, contacting, ServerApp._user.Username,DateTime.Now);
byte[] data = Encoding.Default.GetBytes(query.ToString());
byte[] signature = ServerApp._rsaProvider.SignData(data, "SHA1");
SignedQueryByFile signedQuery = new SignedQueryByFile(query, signature);
MessageBox.Show(ServerApp._user.Username + " : wants to share " + file.FileName);
foreach (Friend f in ServerApp._user.Friends)
{
if (f.Uris.ElementAt(0) != null && f.SucessorSwarm)
{
friend = ((ServerToServerServices)Activator.GetObject(typeof(ServerToServerServices),
f.Uris.ElementAt(0) + "/" + ServicesNames.ServerToServerServicesName));
MessageBox.Show(ServerApp._user.Username + " sends to " + f.Name);
del = new RemoteAsyncShareObjectDelegate(friend.shareObject);
del.BeginInvoke(signedQuery, null, null);
}
}
}