From: burris <burris>
Date: Tue, 1 Oct 2002 05:07:14 +0000 (+0000)
Subject: automatically check responses to make sure it's from the node
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=7d427317cab577b54ab377100fdce5dc7d5366dc;p=quix0rs-apt-p2p.git

automatically check responses to make sure it's from the node
we are expecting it to be from, else errback
---

diff --git a/knode.py b/knode.py
index 3e32ce8..30d19fb 100644
--- a/knode.py
+++ b/knode.py
@@ -1,28 +1,40 @@
 from node import Node
 from twisted.internet.defer import Deferred
 from xmlrpcclient import XMLRPCClientFactory as factory
-from const import reactor
+from const import reactor, NULL_ID
 from xmlrpclib import Binary
 
 
-class KNode(Node):	
+class KNode(Node):
+    def makeResponse(self, df):
+	def _callback(args, d=df):
+	    try:
+		l, sender = args
+	    except:
+		d.callback(args)
+	    else:
+		if self.id != NULL_ID and sender['id'].data != self.id:
+		    d.errback()
+		else:
+		    d.callback(args)
+	return _callback
     def ping(self, sender):
 	df = Deferred()
-	f = factory('ping', (sender,), df.callback, df.errback)
+	f = factory('ping', (sender,), self.makeResponse(df), df.errback)
 	reactor.connectTCP(self.host, self.port, f)
 	return df
     def findNode(self, target, sender):
 	df = Deferred()
-	f = factory('find_node', (Binary(target), sender), df.callback, df.errback)
+	f = factory('find_node', (Binary(target), sender), self.makeResponse(df), df.errback)
 	reactor.connectTCP(self.host, self.port, f)
 	return df
     def storeValue(self, key, value, sender):
 	df = Deferred()
-	f = factory('store_value', (Binary(key), Binary(value), sender), df.callback, df.errback)
+	f = factory('store_value', (Binary(key), Binary(value), sender), self.makeResponse(df), df.errback)
 	reactor.connectTCP(self.host, self.port, f)
 	return df
     def findValue(self, key, sender):
 	df = Deferred()
-	f = factory('find_value', (Binary(key), sender), df.callback, df.errback)
+	f = factory('find_value', (Binary(key), sender), self.makeResponse(df), df.errback)
 	reactor.connectTCP(self.host, self.port, f)
 	return df