//Flat Tree
private void CreateBlocks(Dictionary<string, Block> blocks, Node node)
{
Block block = new Block(node);
if (node.Children.Count > 0)
{
if (node.Name != "Start")
{
blocks.Add(block.InstanceGUID, block);
}
foreach (Node child in node.Children)
{
CreateBlocks(blocks, child);
}
}
}
private bool DetectExistingConditionStartPoint(IEnumerable<ServiceFlow> serviceFlows, Block newStartblock)
{
bool conflictFound = false;
foreach (ServiceFlow currentserviceFlow in serviceFlows)
{
Block startblock = currentserviceFlow.Blocks[currentserviceFlow.FirstBlockGUID];
if (startblock.BlockType == Block.BlockTypes.Condition)
{
if (newStartblock.GlobalGUID == startblock.GlobalGUID)
{
foreach (String key in newStartblock.NextBlocks.Keys)
{
if (startblock.NextBlocks.ContainsKey(key))
{
conflictFound = true;
}
}
}
}
}
return conflictFound;
}
//Pruned section of tree starting at node
private void FillBlocks(Node node, Block block)
{
if (node == null) return;
if (node.Children.Count > 0)
{
foreach (Node child in node.Children)
{
switch (node.GetType().Name)
{
case "ServiceNode":
case "ConditionNode":
block.AddChild(child.Name, new Block(child));
break;
case "ConditionValueNode":
case "SIPResponseNode":
block.AddChild(child.InstanceGUID, new Block(child));
break;
default:
Console.WriteLine("Unkown node type" + child.GetType().Name);
break;
}
//FillBlocks(child, block);
}
}
}
public void AddChild(string key, Block block)
{
NextBlocks.Add(key, block);
}
private static Address RouteService(Message request, Block Block, string toId, string fromId)
{
string callID = request.First("Call-ID").ToString();
if (_activeFlows.ContainsKey(callID))
{
ActiveFlow af = _activeFlows[callID];
af.LastRequest = request;
af.LastBlock = Block;
}
else
{
ActiveFlow af = new ActiveFlow();
af.OriginalRequest = request;
af.LastRequest = request;
af.LastBlock = Block;
_activeFlows.Add(callID,af);
}
Address dest = new Address(Block.DestURI);
return dest;
}
private static Address MatchCondition(Message request, Block firstBlock, string toId, string fromId)
{
Dictionary<string, Block> conditionValues = firstBlock.NextBlocks;
// Look up what condition it is (pull out of condition manager)
if (_context.ContainsKey(toId))
{
if (_context[toId].ContainsKey(firstBlock.ConditionType.ToLower()))
{
string conditionOption = _context[toId][firstBlock.ConditionType.ToLower()];
if (conditionValues.ContainsKey(conditionOption))
{
return CheckServiceBlock(request, conditionValues[conditionOption], toId, fromId);
}
}
}
// Hard coded contact matching for now
if (firstBlock.ConditionType.ToLower() == "contact")
{
if (firstBlock.Name.ToLower() == "calling party")
{
foreach (string key in conditionValues.Keys)
{
if (fromId.ToLower().Contains(key.ToLower()))
{
return CheckServiceBlock(request, conditionValues[key], toId, fromId);
}
}
}
}
return new Address(request.Uri.ToString());
}
private static void ContinueRoutingMessage(Message request, Proxy pua, Block block)
{
SIPURI to = request.Uri;
string toID = to.User + "@" + to.Host;
Address from = (Address)(request.First("From").Value);
string fromID = from.Uri.User + "@" + from.Uri.Host;
Address dest = new Address(to.ToString());
Address temp_dest = CheckServiceBlock(request, block, toID, fromID);
if (temp_dest != null)
{
dest = temp_dest;
}
if (dest.ToString().Contains("anonymous.invalid"))
{
Message proxiedMessage = pua.CreateResponse(403, "Forbidden");
pua.SendResponse(proxiedMessage);
}
else
{
Message proxiedMessage = pua.CreateRequest(request.Method, dest, true, true);
proxiedMessage.First("To").Value = dest;
pua.SendRequest(proxiedMessage);
}
}
private static Address CheckServiceBlock(Message request, Block firstBlock, string toId, string fromId)
{
Address dest = null;
bool matched = false;
switch (firstBlock.BlockType)
{
case Block.BlockTypes.Condition:
dest = MatchCondition(request, firstBlock, toId, fromId);
break;
case Block.BlockTypes.Service:
dest = RouteService(request, firstBlock, toId, fromId);
break;
case Block.BlockTypes.ConditionOption:
dest = CheckServiceBlock(request, firstBlock.NextBlocks.Values.First(), toId, fromId);
break;
case Block.BlockTypes.SIPResponse:
if (firstBlock.NextBlocks.Count > 0)
{
dest = CheckServiceBlock(request, firstBlock.NextBlocks.Values.First(), toId, fromId);
}
else
{
dest = null;
}
break;
default:
break;
}
return dest;
}
