DoubleEntry: added numerical example experiment for Tribler#10.

Tribler/community/doubleentry/community.py

@@ -251,6 +251,8 @@ def validate_signature(public_key_binary, payload, signature):
             # Invalid public key.
             return False
 
+    def get_key(self):
+        return self._ec
 
 class DoubleEntrySettings(object):
     """

Tribler/community/doubleentry/experiments.py

@@ -0,0 +1,39 @@
+from Tribler.dispersy.crypto import ECCrypto
+
+__author__ = 'norberhuis'
+"""
+File containing experiments
+"""
+
+
+class NumericalExample:
+
+    def __init__(self, double_entry_community):
+        self._community = double_entry_community
+
+    def perform_experiment(self):
+        self.save_key_to_file(self._community.get_key())
+
+        message = self._community.create_signature_request_message()
+
+        self.save_payload_to_file(message.payload.timestamp)
+        self.save_signature_to_file(message.payload.signature_requester)
+
+    @staticmethod
+    def save_key_to_file(ec):
+        pem = ECCrypto().key_to_pem(ec)
+        f = open("key.pem", 'w')
+        f.write(pem)
+        f.close()
+
+    @staticmethod
+    def save_payload_to_file(payload):
+        f = open("payload", 'w')
+        f.write(payload)
+        f.close()
+
+    @staticmethod
+    def save_signature_to_file(signature):
+        f = open("signature", 'w')
+        f.write(signature)
+        f.close()

Tribler/community/doubleentry/main.py

@@ -14,6 +14,8 @@
 from Tribler.community.doubleentry.community import DoubleEntryCommunity
 from Tribler.community.doubleentry.community import DoubleEntrySettings
 
+from Tribler.community.doubleentry.experiments import NumericalExample
+
 from twisted.internet.threads import blockingCallFromThread
 from twisted.internet.stdio import StandardIO
 from twisted.protocols.basic import LineReceiver
@@ -25,13 +27,13 @@
 # Class that handles boot strapping the DoubleEntry Community.
 class DoubleEntry(object):
     """
-    Class that handles boot strapping the DoubleEntry Community when running a single community instance without Tribler.
+    Class that handles boot strapping the DoubleEntry Community
+    when running a single community instance without Tribler.
     """
 
     def __init__(self):
         """
         Setup this class to be able to run the community with the run method.
-        :return:
         """
         self.community = None
         self._member = None
@@ -80,6 +82,9 @@ def start_community():
 
         blockingCallFromThread(reactor, start_community)
 
+    def get_community(self):
+        return self.community
+
     def signature_request(self):
         """
         Instruct the community to send out a signature request.
@@ -94,16 +99,18 @@ class CommandHandler(LineReceiver):
     from os import linesep
     delimiter = linesep
 
-    def __init__(self, doubleentry):
-        self.doubleentry = doubleentry
+    def __init__(self, double_entry):
+        self.double_entry = double_entry
 
     def connectionMade(self):
         self.transport.write('>>> ')
 
-
     def lineReceived(self, line):
         if line == 'r':
-            self.doubleentry.signature_request()
+            self.double_entry.signature_request()
+        elif line == 'n':
+            experiment = NumericalExample(self.double_entry.get_community())
+            experiment.perform_experiment()
 
         self.transport.write('>>> ')